30th week of 2022 patent applcation highlights part 65 |
Patent application number | Title | Published |
20220239158 | Receive and Transmit Coil Pair Selection - A machine implemented method includes alternately energizing multiple transmit coils in a first device, receiving indications of received signal strength at receive coils in a second device, selecting a first pair of coils including a first transmit coil and a first receive coil having the greatest received signal strength, and transferring energy from the first transmit coil to the first receive coil. | 2022-07-28 |
20220239159 | OBJECT DETECTION APPARATUS, POWER TRANSMISSION APPARATUS, AND POWER TRANSMISSION SYSTEM - An object detection apparatus includes a sensor module including a sensor, and a controller that controls the sensor and generates output information, based on a signal that the sensor outputs; and a detector that determines presence or absence of the object, based on the output information. The detector executes a reference object detection process of detecting a reference object existing at a predetermined position within the detection range, by comparing the output information and predetermined reference information, and, when the reference object is detected, executes a correction process of correcting at least one of the output information or a parameter for the sensor, based on the reference information and reference object information that is information indicative of the reference object in the output information. | 2022-07-28 |
20220239160 | Wire-Wound Structures for Electromagnetic Sensing of Objects - This disclosure provides an apparatus for detecting a presence of an object in a predetermined area of an inductive wireless power transfer system. The apparatus comprises a first wire-wound structure having an electrical characteristic configured for electromagnetic sensing of the object. The first wire-wound structure is formed, carried, and held in place by a coil-former substantially from a non-conductive material. The coil-former also forms, carries, and holds in place a second wire-wound structure configured for transferring power inductively. The apparatus further comprises a detection circuit coupled to the first wire-wound structure and configured to measure the electrical characteristic of the first wire-wound structure and to detect the presence of the object in response to a change in the electrical characteristic. | 2022-07-28 |
20220239161 | DEVICE AND METHOD FOR PERFORMING POWER CALIBRATION IN WIRELESS POWER TRANSMISSION SYSTEM - The present specification provides a wireless power transmission device comprising: a power conversion unit configured so as to transmit, in a power transfer phase, wireless power generated on the basis of magnetic coupling to a wireless power receiving device; and a communication/control unit configured so as to perform an initial calibration for a power parameter prior to the power transfer phase, receive, from the wireless power receiving device, a first received power packet indicating the power received by the wireless power receiving device during the power transfer phase, and detect a foreign object by using the received power and a first power loss determined on the basis of the initial calibration. | 2022-07-28 |
20220239162 | POWER TRANSMISSION DEVICE, POWER RECEPTION DEVICE, WIRELESS POWER TRANSMISSION SYSTEM, AND METHOD FOR DRIVING POWER TRANSMISSION DEVICE - A power transmission device includes a power transmission coil, a magnetically shielded space created by a power transmission-side cancel coil arranged outside the power transmission coil, a moving member configured to move a metal foreign substance, and a moving mechanism configured to move a part or all of an upper surface of the moving member from an area outside the magnetically shielded space into the magnetically shielded space. | 2022-07-28 |
20220239163 | Wireless Power Transfer System With Data-Priority And Power-Priority Transfer Modes - A method for operating a wireless power transfer system includes selecting an operating mode from a plurality of transmission modes, which includes, at least, a first operating mode having a first power level and a first data rate and a second operating mode having a second power level and a second power rate, wherein the first data rate is greater than the second data rate and the first power level is less than the second power level. The method further includes performing, one or more of encoding the wireless data signals, decoding the wireless data signals, receiving the wireless data signals, transmitting the wireless data signals or combinations thereof. The method further includes driving a transmitter antenna of the wireless power transmission system, by the amplifier, based on a driving signal generated in accordance with the selected operating m. | 2022-07-28 |
20220239164 | CALIBRATION OF FOREIGN OBJECT DETECTION IN WIRELESS POWER SYSTEMS WITH AUTHENTICATION - Apparatus and methods are described for performing wireless power transfer and foreign object detection with authentication at different power levels. The impact of time required for an authentication process to execute between transitions to different power levels is reduced. | 2022-07-28 |
20220239165 | POSITION DETECTION SYSTEM AND ELECTRIC POWER TRANSMISSION SYSTEM - An antenna is provided in one device from among a power transmission device and a power reception device. A transmission circuit drives the antenna. A plurality of antennas is provided in the other device from among the power transmission device and the power reception device. A radio wave detection circuit detects intensity of a radio wave received by the plurality of antennas. A position detector detects a relative position between the power transmission coil and the power reception coil, based on the intensity detected by the radio wave detection circuit. A transmission circuit drives at least one antenna. The radio wave detection circuit detects intensity of a radio wave being transmitted from an antenna driven by the transmission circuit and being received by an antenna other than the antenna driven by the transmission circuit. | 2022-07-28 |
20220239166 | AMORPHOUS LAMINATION CORE FOR MOTOR, METHOD FOR MANUFACTURING AMORPHOUS LAMINATION CORE FOR MOTOR, AND AMORPHOUS ALLOY RIBBON FOR MOTOR - An amorphous lamination core for motor is configured by laminating amorphous alloy pieces, a pressurization member is pressed to a plurality of positions of the amorphous alloy piece, the number of pressurization portions with a crack is N, the total number of pressurization portions to which the pressurization member is pressed is N0 (N0≥100), and a degree of embrittlement is N/N0×100(%), the pressurization member is made of beryllium copper, and has a body portion of φ1.4 mm and a conical portion, the conical portion has a bottom surface of φ4 mm and a vertex angle θ of 120°, and when the degree of embrittlement is evaluated with the conical portion being pressed against the amorphous alloy piece and pressurization force of the pressurization member being set to 14 N, a degree of embrittlement of the amorphous alloy piece is equal to or less than 3.0%. | 2022-07-28 |
20220239167 | MOTOR MEMBER, MOTOR, AND METHOD FOR MANUFACTURING MOTOR MEMBER - A motor armature includes a laminated body including a stack of magnetic bodies each having an annular and plate shape, an extended body that opposes an opposing peripheral surface that is at least one of an inner peripheral surface and an outer peripheral surface of the laminated body and extends along a stacking direction of the magnetic bodies, and a holder stacked on the laminated body in the stacking direction to hold the laminated body. The holder includes a plate portion that extends along the laminated body and has higher rigidity than the magnetic bodies, and a sleeve portion that extends in contact with the extended body. | 2022-07-28 |
20220239168 | STATOR, MOTOR, COMPRESSOR, AND AIR CONDITIONER - A stator is a stator disposed outside a rotor of a motor disposed in a compressor used with a refrigerant containing a substance having a property of causing disproportionation. The stator includes a yoke part and N tooth parts. Each of the N tooth parts includes a tooth end surface to face a rotor. The stator satisfies 0.75≤(θ1×N)/360≤0.97, where θ1 (degrees) is an angle famed by two lines passing through both ends of the tooth end surface and a rotation center of the rotor in a plane perpendicular to an axial direction of the rotor. | 2022-07-28 |
20220239169 | METHOD FOR CHECKING A MODEL TEMPERATURE OF AN ELECTRICAL MACHINE ASCERTAINED BY MEANS OF A TEMPERATURE MODEL, AND MOTOR VEHICLE - A method for checking a model temperature of an electrical machine ascertained by a temperature model. At least one manipulated variable relating to the electrical machine is specified by a regulation of the electrical machine as a function of a setpoint variable. A model value of the manipulated variable is ascertained as a function of the manipulated variable and the model temperature from a machine model comprising at least one temperature-dependent parameter. A difference between the actual manipulated variable of the regulation and the model value of the manipulated variable and/or a difference between a variable derived from the actual manipulated variable of the regulation and a corresponding further variable derived from the model value of the manipulated variable is ascertained. The difference is compared to a limiting value and, if the limiting value is exceeded, a deviation of the model temperature from an actual temperature of the electrical machine is detected. | 2022-07-28 |
20220239170 | INTEGRATED STATOR COOLING JACKET SYSTEM - An electric machine including a housing and a stator mounted in the housing. The stator is formed from a plurality of stator laminations arranged in a first lamination group and a second lamination group that is circumferentially off-set from the first lamination group. The first lamination group and the second lamination group form a coolant flow path that extends circumferentially about and axially across the stator. Each of the plurality of stator laminations of the first and second lamination groups include a body having an inner surface section and an outer surface section. A plurality of cooling channels defining members is integrally formed with and extend radially outwardly from the outer surface section. The plurality of cooling channel defining members create a coolant flow path that extends circumferentially in a first plurality of channels and axially in a second plurality of channels across the stator. | 2022-07-28 |
20220239171 | ROTOR, ELECTRIC MOTOR, BLOWER, AIR CONDITIONER, AND MANUFACTURING METHOD FOR ROTOR - A rotor includes at least one first permanent magnet and a second permanent magnet and has 2n (n is a natural number) magnetic poles. The at least one first permanent magnet forms part of an outer peripheral surface of the rotor and is magnetized to have polar anisotropy. The second permanent magnet is adjacent to the at least one first permanent magnet in a circumferential direction of the rotor, and has lower magnetic force than magnetic force of the at least one first permanent magnet. The second permanent magnet has 3×2n magnetic poles. | 2022-07-28 |
20220239172 | ANNULAR AXIAL FLUX MOTORS - An annular axial flux motor includes a rotor mounted on an annular subsection of a rotatable cam ring and a stator mounted on an annular subsection of a carrier frame. The rotor includes two Halbach arrays of permanent magnets spaced from each other on the cam ring along an axial direction. The stator includes multiple phase electrical windings printed on multiple layers of a printed circuit board (PCB) that are stacked along the axial direction. The multiple layers are positioned between the Halbach arrays, with active side of the Halbach arrays facing to opposite sides of the multiple layers. The Halbach arrays are configured to generate a symmetrical magnetic field and the multiple phase electrical windings are configured to have a same rotor-dependent torque constant, such that the stator can generate a constant torque to rotate the rotor and the cam ring within a finite travel range. | 2022-07-28 |
20220239173 | IMPROVEMENTS TO THE CONSTRUCTION OF AXIAL FLUX ROTARY GENERATORS - An axial flux rotary generator comprising: two magnetic annuli; a coil annulus; the magnetic annuli and coil annulus having a common axis; the two magnetic annuli defining a plurality of magnetic fields around the common axis extending across a gap between the two magnetic annuli and the coil annulus having a sequence of coils around the common axis in the gap such that lines of magnetic flux cut the turns of the coils and thus induce electric current in the coils as the magnetic annuli are caused to rotate relative to the coil annulus; and at least one first part extending between the two magnetic annuli and at least one second part extending between the two magnetic annuli; wherein the first part is under greater compressive strain than the second part. | 2022-07-28 |
20220239174 | HYBRID ROTOR MODULE COOLING - An electric machine includes a housing and a stator mounted to the housing. The stator includes a plurality of laminations, a first end turn and a second end turn. A rotor shaft extends through the housing. A hybrid rotor module is coupled to the rotor shaft. The hybrid rotor module includes a clutch basket including a rotor carrier having a first end, a second end, and an intermediate portion extending therebetween. The first end is radially outwardly offset relative to the second end. One or more clutch assemblies is arranged in the clutch basket. A rotor mounted to the rotor carrier. One or more openings is formed in the rotor carrier. The one or more openings direct coolant onto at least one of the stator, the first end turn, and the second end turn. | 2022-07-28 |
20220239175 | HIGH-SPEED EDGE-WOUND ROTOR - A rotor having multiple poles is provided and includes at each pole an end winding support forming a channel, a bus bar disposed in the channel and edge-wound coils disposed to extend around the end-winding support and the bus bar. The edge-wound coils are stacked radially and include an inner diameter coil routed to an adjacent pole and brazed to an inner diameter coil of the adjacent pole and an outer diameter coil brazed to the bus bar. | 2022-07-28 |
20220239176 | STATOR, TERMINAL BLOCK, AND ROTATING ELECTRIC MACHINE - An object of the present invention is to efficiently cool a rotor coil even in a rotor provided with a wire connection plate. A stator of a rotating electric machine includes a stator core, a plurality of segment coils protruding from slots of the stator core and arranged in a radial direction, a connection conductor that connects the segment coils, and an insulating member that holds the connection conductor. The insulating member includes a through hole through which the segment coil penetrates and is accommodated. An opening through which a coolant can flow into the through hole is provided on an inner peripheral side of the insulating member. | 2022-07-28 |
20220239177 | STATOR ASSEMBLY FLUX ALIGNMENT - Various implementations include a stator assembly for an axial flux permanent magnet machine. The stator assembly may include a set of stator bars and a set of shoes for the stator bars. A shoe may be provided at one or each end of a stator bar. The stator assembly may further include a set of coils each wound around a respective stator bar. Each shoe has an inner surface adjacent to the end of one of the stator bars. The end of each stator bar has a rim, and each inner surface has a cut-away region over part of the rim to reduce a component of magnetic flux at the end of the stator bar. | 2022-07-28 |
20220239178 | BRUSHLESS ELECTRIC MOTOR WITH BUSBAR UNIT - A brushless electric motor includes a rotor rotatable about an axis of rotation, a stator that surrounds the rotor externally and includes a stator core and coils wound on the stator core, and a busbar assembly including a busbar holder surrounding first busbars. The windings are made of a winding wire including a first end portion on one side and a second end portion on another side of the winding wire. The first busbars are electrically contacted with the second end portions, the busbar holder being placed on a top of the stator, and the busbar holder includes fastening arms which engage in longitudinal grooves of the stator. | 2022-07-28 |
20220239179 | GENERATOR MAIN FIELD CONNECTION - A main field connection to connect to a main field winding has a semi-cylindrical portion with an axially thicker outer surface, an axially thinner inner surface, with an aperture. An extending portion extends from the semi-cylindrical portion to a remote extending end. The remote extending end extends for a first axial distance. The axially thicker portion of the semi-cylindrical portion extends for a second axial distance. A ratio of the first axial distance to the second axial distance is between 0.65 and 1.4. A rotating assembly, a generator and a method are also disclosed. | 2022-07-28 |
20220239180 | MOTOR HAVING TERMINALS WITH UNIFIED SHAPES FOR POSITIONING - The present invention may provide a motor including a shaft, a rotor coupled to the shaft, a stator disposed outside the rotor, and a bus bar disposed on the stator, wherein the bus bar includes a terminal connected to a coil of the stator, the terminal includes a first terminal and a second terminal which are separated from each other in a circuit manner, the first terminal includes a first neutral terminal and a plurality of first phase terminals, the second terminal includes a second neutral terminal and a plurality of second phase terminals, first curvature centers of the plurality of first phase terminals are disposed to be different, second curvature centers of the plurality of second phase terminals are disposed to be different, and a position of a curvature center of the first neutral terminal is the same as a position of a curvature center of the second neutral terminal. | 2022-07-28 |
20220239181 | ELECTRIC MACHINE - An electric machine includes a stator, a rotor, a housing and a shaft. The stator is connected to the housing via an electrically insulating torque support. An electrically insulating flange is disposed on the shaft. The shaft is connected to a flange of a bearing shaft via said flange, the bearing shaft housed in a bearing which is arranged in the housing. | 2022-07-28 |
20220239182 | CAPILLARY-COOLED MOLDED MAGNETIC STRUCTURE - A molded magnetic structure. In some embodiments, the molded magnetic structure includes a plurality of coolant flow channels. | 2022-07-28 |
20220239183 | HERMETIC MOTOR COOLING SYSTEM - A system for cooling a hermetic motor includes a housing of the hermetic motor that is configured to be disposed along a motor cooling refrigerant flow path. The housing is configured to surround at least a portion of a stator of the hermetic motor and includes an annular cavity configured to receive refrigerant from a refrigerant loop. The system also includes a sleeve configured to be positioned between the annular cavity and the stator, where the sleeve includes a plurality of discharge ports oriented generally parallel to a central axis of the stator. The plurality of discharge ports is configured to discharge the refrigerant from the annular cavity toward the stator. | 2022-07-28 |
20220239184 | ELECTRIC MOTOR - A frame of an electric motor has inlet holes to allow ambient air to flow into an inside of the motor and outlet holes to allow the ambient air entering through the inlet holes to flow out to an outside of the motor. The motor includes a shaft, a rotor, a stator, a fan to rotate integrally with the shaft, and a guide. The guide is disposed outwardly of the fan in the radial direction and has a shape for suppressing foreign materials contained in the ambient air entering through the inlet holes from coming into contact with the stator and the rotor. | 2022-07-28 |
20220239185 | ELECTRIC MOTOR CONVERSION SYSTEM - An internal combustion engine to electric motor conversion system for a work machine is provided. The electric motor conversion system is sized to substantially conform to a footprint of the internal combustion engine on the work machine. The electric motor conversion system includes an electric motor, a power distribution unit and a connecting bracket. The electric motor is configured for direct mounting on a frame of the work machine. The power distribution unit is separate from and positioned atop the electric motor. The power distribution unit controls operation of the electric motor. The connecting bracket is separate from the electric motor and power distribution unit. The connecting bracket includes a base, first attachment elements extending from a lower surface of the base for attachment to the electric motor, and second attachment elements extending from an upper surface of the base for attachment to the power distribution unit. | 2022-07-28 |
20220239186 | VOICE COIL MOTOR BASE, VOICE COIL MOTOR, AND CAMERA MODULE - Disclosed are a voice coil motor base, a voice coil motor provided with the voice coil motor base, and a camera module. The voice coil motor base includes a base body and two electrode terminals disposed on one side edge of the base body, and further includes a molding tape embedded in the base body. The molding tape is connected to the electrode terminals, the molding tape is provided with pins, and the pins connected to a circuit are disposed inside the voice coil motor. | 2022-07-28 |
20220239187 | COUNTER-ROTATING DIFFERENTIAL ELECTRIC MOTOR ASSEMBLY - An improved counter-rotating (CR) differential electric motor assembly is utilized to power an aircraft vehicle or fan for moving a gas and includes two oppositely rotating propellers that may be mounted to horizontal flight and vertical lift-off aircraft or a fan housing in spaces similar in size to mounting spaces for traditional motors having only one propeller and includes a hollow central shaft and slip ring assembly that is mounted either within, slight above, or total above oppositely rotating components and around the hollow central shaft. | 2022-07-28 |
20220239188 | ELECTRIC MOTOR AND RAIL VEHICLE - An electric motor for a rail vehicle has a rotational speed sensor. The rotational speed sensor is mounted to an end shield of the electric motor. A sensor wheel for the rotational speed sensor is mounted to a clutch of the electric motor. | 2022-07-28 |
20220239189 | Motor for Electric Cylinder and Encoder for Motor - A motor for an electric cylinder includes a motor body, an encoder, a rotor coupling portion and an encoder fixing portion. The motor body includes a rotor having a shaft hole through which a rotating shaft extends. The encoder is installed on the motor body and includes a fixing ring fixed on the rotating shaft, a magnet holder combined with the fixing ring, an encoder magnet mounted on the magnet holder, and a magnetic sensor opposite to the encoder magnet. The magnet holder is rotatable relative to the fixing ring to adjust the magnetic pole position of the encoder magnet relative to the magnetic sensor. The rotor coupling portion is arranged on the rotor and fixed to the rotating shaft at a first corresponding position. The encoder fixing portion is arranged on the fixing ring and fixed with the rotating shaft at a second corresponding position. | 2022-07-28 |
20220239190 | MOTOR, FAN, AIR CONDITIONER, AND MANUFACTURING METHOD OF MOTOR - A motor includes a rotor having a rotation shaft, a rotor core fixed with respect to the rotation shaft, a magnet attached to the rotor core, and a bearing attached to the rotation shaft. The magnet constitutes a first magnetic pole, and a part of the rotor core constitutes a second magnetic pole. The motor also includes an annular stator surrounding the rotor from outside in a radial direction about a center axis of the rotation shaft, a bearing holding member holding the bearing, and a resin portion covering the stator and the bearing holding member. | 2022-07-28 |
20220239191 | Solar Power Generation Device - A solar power generation device, provided with a power multiplication unit ( | 2022-07-28 |
20220239192 | VARIABLE-FREQUENCY GENERATOR SET INTEGRATED SYSTEM DRIVEN BY INTERNAL COMBUSTION ENGINE - A variable-frequency generator set integrated system driven by an internal combustion engine includes a permanent magnet generator and an inverter device. The winding coils on the permanent magnet generator stator are all three-phase winding coils. The inverter device has an AC-DC rectification and voltage stabilization unit, a DC-AC variable-frequency inverter unit, a DC-DC conversion unit, and a control unit. The AC-DC rectification and voltage stabilization unit has an input end, a first output end, and a second output end respectively connected with the three-phase winding coils, the DC-AC variable-frequency inverter unit, and the DC-DC conversion unit. The DC-DC conversion unit is configured to convert a DC power source rectified by the AC-DC rectification and stabilization unit to a plurality of DC power sources with different voltages to supply power to the control unit and directly output. The permanent magnet generator is smaller in volume and weight and lower in cost. | 2022-07-28 |
20220239193 | INVERTER GENERATOR - A standby generator includes a standby housing defining a cavity and an internal combustion engine. The engine includes an engine block including a cylinder comprising a piston, an engine housing at least partially covering the engine block, and a crankshaft configured to rotate about a vertical crankshaft axis in response to movement by the piston. The standby generator also includes an alternator configured to generate alternating current electrical power, a controller comprising a rectifier configured to convert the alternating current to a direct current and an inverter configured to convert the direct current to a clean alternating current electrical power, and a transfer switch configured to receive the clean alternating current electrical power from the controller and at least one of grid, solar, or battery power, and configured to supply power to an electrical load. The internal combustion engine, the alternator, and the controller are positioned within the cavity. | 2022-07-28 |
20220239194 | PORTABLE ELECTRICITY GENERATOR POWERED BY MUSCLE ENERGY, GRAVITATIONAL ENERGY, OR BOTH INCORPORATING FAST-CHARGING TECHNOLOGY - A portable, self-contained rotary generator able to fast-charge electronic devices via a universal serial bus (USB) interface. Human muscle energy, gravitational energy, or a combination of both can be delivered to the generator by a crank whereby input motion is rotary or a wheel whereby input motion is linear. Input motion and its associated energy are modified by a gear ratio connected to a generator which produces electrical power. Power electronics convert the electrical power and deliver it to a connected electric device in accordance with USB fast-charging standards such as USB Power Delivery (USB-PD) or Qualcomm Quick Charge (QC). A removable means of securing the generator to solid objects alleviates the need for two-handed operation, enables embodiments harnessing gravitational energy, and increases the potential power output of all embodiments of the generator. | 2022-07-28 |
20220239195 | COOLING SYSTEM, ELECTRIC MOTOR AND WIND-POWER ELECTRIC GENERATOR SET - The present disclosure relates to a cooling system, an electric motor and a wind-power electric generator set. The cooling system is applied to an electric motor; the electric motor includes a stator support and a rotor support, the stator support is dynamically sealingly connected to the rotor support to form ventilation chambers respectively arranged at two ends of the electric motor in an axial direction, first ventilation holes are formed at two ends of the stator support in the axial direction respectively, and the cooling system includes: a flow-confluence chamber, arranged in a circumferential direction of the stator support; an accommodating chamber, arranged in the circumferential direction of the stator support; a heat exchanger, arranged in the accommodating chamber or in the flow-confluence chamber; a circulating fan, arranged in the circumferential direction of the stator support and located at a side of the stator support in the axial direction. | 2022-07-28 |
20220239196 | ELECTROMOTIVE TRANSMISSION DEVICE - An electromotive transmission device for a vehicle having an electric motor ( | 2022-07-28 |
20220239197 | ELECTRIC MOTOR COOLING STRUCTURE - An electric motor cooling structure includes: a shaft; a rotor arranged on an outer circumference of the shaft; a stator arranged on an outer circumference of the rotor; a magnet received by the rotor; a coolant passage formed on an inner side of the magnet in a radial direction of the shaft; and a heat pipe arranged between the coolant passage and the magnet. The heat pipe includes: a first tubular portion extending in the radial direction of the shaft from a side of the coolant passage to a side of the magnet; and a second tubular portion communicating with an end of the first tubular portion on the side of the magnet and extending in an axial direction of the shaft. | 2022-07-28 |
20220239198 | LOCALIZED IMMERSION COOLING ENCLOSURE WITH THERMAL EFFICIENCY FEATURES - In one embodiment, an apparatus includes an enclosure configured for connection to a printed circuit board, a substrate within the enclosure, a plurality of components mounted on the substrate, a fluid inlet connector, a fluid outlet connector, and a plurality of flow channels within the enclosure, at least one of the components disposed in each the flow channels and segregated from other components in another of the flow channels. The enclosure is configured for immersion cooling of the components. | 2022-07-28 |
20220239199 | SYSTEMS AND METHODS FOR ELECTRIC PROPULSION SYSTEMS FOR ELECTRIC ENGINES - In one embodiment, an advanced electric propulsion system comprises: a housing; an electric motor within the housing; a motor drive coupled to the motor; a thermal management system comprising: a manifold-mini-channel heat sink integrated into the housing, the manifold-mini-channel heat sink comprises: an inlet manifold having air inlets formed in front of the housing; a set of plurality of circumferentially grooved micro-channels formed in the housing and coupled to the air inlets and conductively thermally coupled to stator windings of the electric motor; an outlet manifold having an air outlets formed at a back of the housing and coupled to the set of plurality of circumferentially grooved micro-channels; wherein the electric motor comprises PEW stator windings that provide a low thermal resistance path from the stator of the electric motor to the housing; wherein the PEW stator windings comprise a high temperature tolerant thermally conductive electrical insulator. | 2022-07-28 |
20220239200 | MOTOR AND AIR COMPRESSOR - A motor includes: a central shaft; a stator extending in an axial direction around the central shaft; a rotor facing an outer side in a radial direction of the stator and configured to rotate around the central shaft; a substrate located on one side in the axial direction with respect to the rotor and on which a rotation position detection circuit detecting a rotation position of the rotor is mounted; and a case located on one side in the axial direction with respect to the substrate and supporting the stator. The stator includes a restricting portion restricting a position in a circumferential direction of the substrate. The case includes a fixing portion fixing the substrate. The substrate includes a restricted portion whose position in the circumferential direction is restricted by the restricting portion, and a fixed portion fixed to the fixing portion. | 2022-07-28 |
20220239201 | COUNTER-ROTATING DIFFERENTIAL ELECTRIC MOTOR ASSEMBLY SLIP RING ASSEMBLY - A rotational slip ring assembly for an improved counter-rotating (CR) differential electric motor assembly is utilized to power an aircraft vehicle or fan for moving a gas and includes two oppositely rotating propellers that may be mounted to horizontal flight and vertical lift-off aircraft or a fan housing in spaces similar in size to mounting spaces for traditional motors having only one propeller and includes a hollow central shaft and slip ring assembly that is mounted either within, slight above, or total above oppositely rotating components and around the hollow central shaft. | 2022-07-28 |
20220239202 | METHOD FOR MANUFACTURING MOTOR CORE - A method for manufacturing a motor core includes a step of manufacturing a motor core by performing melt-cutting on an electrical steel sheet using heat input from a surface, the electrical steel sheet having an average thermal conductivity in depth positions from the surface to one-third depth of a sheet thickness lower than a thermal conductivity in a middle position in a sheet thickness direction by 30% or greater. | 2022-07-28 |
20220239203 | METHOD FOR PRODUCING AN ELECTROMAGNETIC COMPONENT, IN PARTICULAR A LAMINATED CORE, FOR EXAMPLE A STATOR CORE OR A ROTOR CORE, FOR AN ELECTRIC MACHINE - The invention relates to a method for producing an electromagnetic component. In particular, the electromagnetic component to be produced can be a laminated core, for example a stator core or a rotor core, and can be provided for use with an electric machine such as an electric motor. | 2022-07-28 |
20220239204 | ROTOR ASSEMBLY METHOD AND SYSTEM EMPLOYING CENTRAL MULTI-TASKING ROBOTIC SYSTEM - A rotor assembly system for a manufacturing cell includes a central robotic system comprising a multi-axial central robot and a conveyor platform and one or more multi-axial auxiliary robotic systems secured at one or more locations within the cell. The conveyor platform is operable to move the central robot within the cell. The central robotic system and the one or more auxiliary robotic systems are configured to perform a plurality of rotor manufacturing processes on at least one rotor component in coordination with one another, and the central robotic system is configured to transfer the at least one rotor component between one or more rotor manufacturing processes of the plurality of rotor manufacturing processes. | 2022-07-28 |
20220239205 | METHOD FOR ASSEMBLING LARGE-DIAMETER ELECTRIC MOTOR - The present disclosure relates to a method for assembling a large-diameter electric motor, the method includes: a preparing step: providing two or more stator segments for forming a stator and two or more rotor support segments for forming a rotor support; a splicing step: splicing the two or more stator segments and the two or more rotor support segments in a predetermined manner to form the stator and the rotor support that are coaxially assembled, respectively, and maintaining a predetermined gap between the stator and the rotor support in a radial direction; and an assembling step: inserting a plurality of magnetic pole modules into the predetermined gap, and assembling the plurality of magnetic pole modules to a mounting surface of the rotor support. The method can avoid the influence of a magnetic pulling force at an air gap between the stator and a rotor on an assembling process, and can improve the convenience of assembling the large-diameter electric motor on site. | 2022-07-28 |
20220239206 | METHOD AND APPARATUS FOR TRANSFER MOLDING OF ELECTRIC MOTOR CORES AND MAGNETIZABLE INSERTS - A method of securing magnetizable inserts within cores of an electric converter includes placing an assembly of rotor cores in a transfer molding press, the magnetizable inserts being disposed within cavities of the rotor cores and the cavities of the rotor cores being in fluid communication, placing a polymer preform proximate a central portion of the assembly of rotor cores, displacing the polymer preform such that the polymer preform changes state and flows radially and then axially through each of the cavities of the rotor cores, removing the assembly of rotor cores from the transfer molding press, and removing polymer waste from the assembly of rotor cores. | 2022-07-28 |
20220239207 | ROTARY MOTOR AND ROBOT - A lower part first main magnet, a lower part first sub-magnet, a lower part second main magnet, and a lower part second sub-magnet of a motor are sequentially repeatedly placed along a circumference of a rotation axis for relative rotation, a magnetization direction of the lower part first main magnet is a lower part first direction, a magnetization direction of the lower part second main magnet is a lower part second direction, magnetization directions of the lower part first sub-magnet and the lower part second sub-magnet are circumferential directions, the lower part first sub-magnet and the lower part second sub-magnet have recessed portions in parts facing a first stator and facing the lower part first main magnet or the lower part second main magnet, and lower part first auxiliary magnet to lower part fourth auxiliary magnet in magnetization directions different from the lower part first direction. | 2022-07-28 |
20220239208 | IN-WHEEL WORKING DEVICE - An in-wheel working device including: a stator fixed to the inside of a housing, a rotor rotatably installed in the stator, a rotating part rotatably installed in the housing, and rotated with the rotor, a resolver fixing part fixed to the inside of the housing, and a resolver moving part. The resolver moving part includes a resolver rotor positioned outside the resolver fixing part and facing the resolver fixing part, and a cover part fixed to the rotating part and covering the resolver rotor. | 2022-07-28 |
20220239209 | IN-WHEEL WORKING DEVICE - An in-wheel working device including: a stator fixed to the inside of a housing, a rotor rotatably installed in the stator, a rotating part rotatably installed in the housing, and rotated with the rotor, a resolver fixing part fixed to the inside of the housing, and a resolver moving part. The resolver moving part includes a resolver rotor positioned outside the resolver fixing part and facing the resolver fixing part, and a cover part fixed to the rotating part and covering the resolver rotor. | 2022-07-28 |
20220239210 | AXIAL FLUX MACHINE SHOE OPTIMISATION - Various implementations include an axial flux machine including a rotor bearing a set of permanent magnets and a stator containing electro-magnetic coil assemblies disposed circumferentially at intervals about an axis. Each coil assembly has an axially extending stator tooth one or more coils wound around the tooth. and one or more end shoes at an end of the stator tooth. The end shoes each have at least one circumferential edge adjacent a neighbouring coil assembly. In some implementations, radially innermost and outermost portions of the at least one circumferential edge are separated by a step projecting from the at least one circumferential edge. In some implementations, at least part of the at least one circumferential edge has a thickness less than a thickness of the inner radial edge thereby reducing a leakage flux between neighbouring electro-magnetic coil assemblies. | 2022-07-28 |
20220239211 | HORIZONTAL LINEAR VIBRATING MOTOR - The present disclosure relates to a horizontal linear vibrating motor, and more particularly, to a horizontal linear vibrating motor which has a smaller size than existing liner motors so as to be mounted on a small-size wearable watch, smart band or the like, while providing a strong vibration. | 2022-07-28 |
20220239212 | TRANSPORT DEVICE - In order to provide a transport device that includes a planar motor, which gives greater flexibility in the movement of the transport units, at least two planar motors have opposing transport planes, wherein provided on the transport plane of a first planar motor is at least one first transport unit, which is connected, by a connecting unit, to at least one second transport unit provided on the transport plane of a second planar motor. | 2022-07-28 |
20220239213 | TRANSPORT DEVICE - In order to provide a transport device having a planar motor, which gives greater flexibility in the movement of the transport units, at least one multiple-action transport unit is provided on the transport device. On the multiple-action transport unit, at least first drive magnets for electromagnetic interaction with the drive coils of a first planar motor and at least second drive magnets for electromagnetic interaction with the drive coils of a second planar motor are provided. The multiple-action transport unit can be moved two-dimensionally on the transport plane of one of the planar motors, or can be moved simultaneously, unidimensionally on neighboring transport planes of the first and second planar motor. | 2022-07-28 |
20220239214 | METHODS AND APPARATUS FOR LINEAR ELECTRIC MACHINE - An embodiment of a linear electric machine includes two or more phases that define a central bore, and alternating permanent magnets that are disposed within the central bore and are free to move relative the windings. An embodiment of a method for selectively powering the windings is disclosed that enables the machine to realize a commanded force, or to determine the force present by using the current within the windings and the alignment of the magnets relative to the windings. | 2022-07-28 |
20220239215 | Power Supply Control Device - The present disclosure provides a power supply control device. The power supply control device includes an error amplifier, generating an error voltage according to a difference between a feedback voltage and a reference voltage; a slope voltage generation circuit, generating a slope voltage of a lamp waveform according to an inductor current; a reference voltage generation circuit, generating the reference voltage that depends on an output voltage; a first comparator, generating a reset signal by comparing the error voltage and the slope voltage; a second comparator, generating a skip signal by comparing the error voltage and the reference voltage; an oscillator, generating a set signal; and a controller, receiving an input of each of the signals (set, reset and skip) and performing a switching drive of an output stage in either a fixed on-time control operation or a fixed frequency current mode operation. | 2022-07-28 |
20220239216 | CONTROL CIRCUIT FOR A POWER SUPPLY AND POWER SUPPLY WITH REDUCED STANDBY POWER LOSSES - A control circuit, a power supply including a control circuit, and a method are disclosed. The control circuit is configured to activate a second output capacitor connected in parallel with a first output capacitor of a power supply when the power supply is in a normal operating mode, and deactivate the second output capacitor when the power supply is in a standby mode. | 2022-07-28 |
20220239217 | TEC CONTROLLER CLAMP CIRCUIT - Circuitry and techniques described herein can use a clamp circuit to provide back-drive compensation in applications where a thermoelectric cooler (TEC) device is to be controlled. A back-drive compensation circuit can be used to inhibit or prevent a linear output stage of a TEC control circuit from being forced out of its intended operating range. The clamp circuit can be implemented using a variety of circuit topologies, such as including a comparator arrangement with hysteresis. In another approach, a linear amplifier topology can provide clamping behavior, such as by injecting or sinking a current at the output node or an intermediate node to inhibit or prevent the output node or intermediate node from being driven outside a specified voltage range by an external source. | 2022-07-28 |
20220239218 | LOW GROUND CURRENT AC-DC POWER SUPPLY FOR NO-NEUTRAL ELECTRICAL DEVICES AND FAULT PROTECTION THEREFOR - An AC-DC power supply receives input AC power and outputs DC power. The converter includes a high power factor bridge rectifier, a barrier circuit with resistor(s) and capacitor(s), and a step-down switching DC-DC converter to step-down a first DC voltage to a second, lower, DC voltage for output. Additionally, fault-protection is provided by redundancy in diodes on diode legs of a bridge rectifier and capacitor(s) of a filter circuit thereof, and a fault-protection circuit to sense current from a step-down switching DC-DC converter, a first voltage from the step-down switching DC-DC converter, and/or a second voltage at an output of the step-down switching DC-DC converter, and open the circuit on a fault. | 2022-07-28 |
20220239219 | ELECTRICAL COMPONENT AND METHOD FOR MANUFACTURING AN ELECTRONIC COMPONENT - An electrical component having a DC link capacitor and an EMC filter. The electrical component includes an input port and an output port. The EMC filter includes a first filter stage and a second filter stage. The first filter stage is arranged between the input port and the DC link capacitor, and the second filter stage is arranged between the output port and the DC link capacitor. Another aspect concerns a method for manufacturing an electronic component. | 2022-07-28 |
20220239220 | CHARGE PUMP CIRCUIT - A charge pump circuit is provided. The charge pump circuit includes a first transistor, a first capacitor, a second transistor, and a second capacitor. The first transistor has a first end and a second end. The first capacitor has a first end and a second end. The second end of the first capacitor is electrically connected to the second end of the first transistor. The second transistor has a first end and a second end. The first end of the second transistor is electrically connected to the second of the first transistor. The second capacitor has a first end and a second end. The first end of the second capacitor is electrically connected to the second end of the second transistor. | 2022-07-28 |
20220239221 | VOLTAGE REGULATOR - A voltage regulator can include: N energy storage capacitors, each having first nodes connected together, where N is a positive integer; N input capacitors connected in series between two nodes of an input port; N input switch circuits, each being connected in parallel with a corresponding one of the N input capacitors, where each of the N input switch circuits is configured to selectively couple a second node of a corresponding one of the N energy storage capacitors to a first node or a second node of the corresponding input capacitor; and a first output switch circuit configured to selectively couple the first nodes of the N energy storage capacitors to a first node or a second node of an output port. | 2022-07-28 |
20220239222 | HYBRID DIGITAL LINEAR AND SWITCHED CAPACITOR VOLTAGE REGULATOR - An on-die voltage regulator (VR) is provided that can deliver much higher conversion efficiency than the traditional solution (e.g., FIVR, LDO) during the standby mode of a system-on-chip (SOC), and it can save the power consumption significantly, during the connected standby mode. The VR operates as a switched capacitor VR under the low load current condition that is common during the standby mode of the SOC, while it automatically switches to the digital linear VR operation to handle a sudden high load current condition at the exit from the standby condition. A digital proportional-integral-derivative (PID) controller or a digital proportional-derivative-averaging (PDA) controller is used to achieve a very low power operation with stability and robustness. As such, the hybrid VR achieves much higher conversion efficiency than the linear voltage regulator (LVR) for low load current condition (e.g., lower than 500 mA). | 2022-07-28 |
20220239223 | SWITCHING CONVERTER CIRCUIT AND DRIVER CIRCUIT HAVING ADAPTIVE DEAD TIME THEREOF - A switching converter circuit, which switches one terminal of an inductor to different voltages, includes a high side MOSFET, a low side MOSFET, and a driver circuit which includes a high side driver, a low side driver, and a dead time control circuit. According to an output current, The dead time control circuit adaptively delays a low side driving signal to generate a high side enable signal for enabling the high side driver to generate a high side driving signal according to a pulse width modulation (PWM) signal; and/or adaptively delays the high side driving signal to generate a low side enable signal for enabling the low side driver to generate the low side driving signal according to the PWM signal, so as to adaptively control a dead time in which the high side MOSFET and the low side MOSFET are both not conductive. | 2022-07-28 |
20220239224 | Switching Converter Circuit and Driver Circuit Having Adaptive Dead Time thereof - A switching converter circuit for switching one end of an inductor therein between plural voltages according to a pulse width modulation (PWM) signal to convert an input voltage to an output voltage. The switching converter circuit has a driver circuit including a high side driver, a low side driver, a high side sensor circuit, and a low side sensor circuit. The high side sensor circuit is configured to sense a gate-source voltage of a high side metal oxide semiconductor field effect transistor (MOSFET), to generate a low side enable signal for enabling the low side driver to switch a low side MOSFET according to the PWM signal. The low side sensor circuit is configured to sense a gate-source voltage of a low side MOSFET, to generate a high side enable signal for enabling the high side driver to switch a high side MOSFET according to the PWM signal. | 2022-07-28 |
20220239225 | VOLTAGE CONVERSION DEVICE - Provided is a technology that is able to shorten the time required to switch a PWM signal when driving the voltage conversion unit, and that can determine the duty according to a current value and an internal resistance of a power unit. A voltage conversion device has a current detection unit that detects a current value of a conduction path, an internal resistance detection unit that detects an internal resistance of a first power unit, a determination unit that determines a usage duty, and a drive unit that outputs a PWM signal that depends on the usage duty determined by the determination unit as a control signal. The determination unit determines the usage duty, based on the internal resistance detected by the internal resistance detection unit and the current value detected by the current detection unit. | 2022-07-28 |
20220239226 | SWITCHING AMPLIFIER ARCHITECTURE WITH MULTIPLE SUPPLIES - Certain aspects of the present disclosure are directed to an apparatus for voltage regulation. The apparatus generally includes a first switch, an inductive element, the first switch being coupled between a first voltage rail and a first terminal of the inductive element, a second switch coupled between a second voltage rail and the first terminal of the inductive element, a third switch coupled between a second terminal of the inductive element and a reference potential node, and a fourth switch coupled between the second terminal of the inductive element and an output node. | 2022-07-28 |
20220239227 | CIRCUIT MODULE AND ELECTRONIC DEVICE - This application provides example circuit modules and example electronic devices comprising the circuit module. One example circuit module includes a power input terminal, a power output terminal, a first switching transistor, a second switching transistor, a comparison unit, a boost unit, an energy storage unit, and a direct current conversion unit, where the first switching transistor is turned on and the second switching transistor is cut off when a source voltage input by the power input terminal to the comparison unit is greater than the preset threshold, or the first switching transistor is cut off and the second switching transistor is turned on when a source voltage input by the power input terminal to the comparison unit is less than or equal to the preset threshold. | 2022-07-28 |
20220239228 | CONTROL CIRCUIT AND CONTROL METHOD OF DC/DC CONVERTER, POWER MANAGEMENT CIRCUIT - The disclosure relates to a control circuit and control method of a DC/DC converter, and a power management circuit. A control circuit of a DC/DC converter with a stable switching frequency is provided. An on-time generating circuit asserts a turn-off signal after an on time has elapsed from turning-on of a switching transistor. A charging circuit charges a capacitor with a charging current corresponding to an input voltage of the DC/DC converter. A frequency stabilizing circuit generates a control signal such that a switching frequency of the switching transistor approximates a reference frequency. A second comparator compares a slope voltage generated in the capacitor with the threshold voltage corresponding to the control signal, and generates the turn-off signal according to a comparison result. | 2022-07-28 |
20220239229 | HIGH-FREQUENCY POWER SUPPLY DEVICE - Provided is a high-frequency power supply device capable of causing an appropriate current to flow through a transformer. A self-oscillation high-frequency power supply device is provided with a DC power supply, an LC resonant circuit, a switching circuit, and a transformer. The LC resonant circuit includes an induction coil for plasma generation and a capacitor. The switching circuit includes a semiconductor element, the switching circuit being configured to subject DC power supplied from the DC power supply to switching processing to supply high-frequency power to the LC resonant circuit. The transformer includes a primary coil included in the LC resonant circuit and a secondary coil connected to the semiconductor element to turn on/off a semiconductor element. The transformer has a coaxial structure in which the primary coil and the secondary coil are coaxially provided. The LC resonant circuit includes a resistor connected in parallel to the primary coil. | 2022-07-28 |
20220239230 | ISOLATED CONVERSION APPARATUS WITH MAGNETIC BIAS BALANCE CONTROL AND METHOD OF CONTROLLING THE SAME - An isolated conversion apparatus with magnetic bias balance control includes an isolated converter, a controller, and a magnetic bias balance circuit. The isolated converter includes a transformer, and a primary side of the transformer includes a primary-side winding and at least one switch bridge arm. The controller is coupled to the at least one switch bridge arm, and provides a pulse width modulation (PWM) signal group to control the at least one switch bridge arm. The magnetic bias balance circuit is coupled to two ends of the primary-side winding and the controller, and provides a compensation voltage to the controller according to an average voltage of a winding voltage across the two ends of the primary-side winding. The controller adjusts a duty cycle of the PWM signal group according to the compensation voltage to correct the magnetic bias. | 2022-07-28 |
20220239231 | POWER CONVERSION DEVICE - A main circuit power supply device includes: a plurality of voltage-division power storage elements connected in series; voltage adjustment circuits for adjusting each of voltages of the plurality of voltage-division power storage elements through mutual transfer of power between the plurality of voltage-division power storage elements; and at least one DC/DC converter which is connected to at least one of the voltage-division power storage elements and supplies a control power source to a main circuit control circuitry to control a main circuit. | 2022-07-28 |
20220239232 | RESONANT POWER CONVERTER CIRCUIT - One example discloses a switch mode power supply (SMPS) circuit configured to receive an input voltage and generate an output voltage, including: a set of switching devices configured to receive the input voltage; a first transformer, having an input winding coupled to the switching devices, and an output winding configured to generate the output voltage; a second transformer, having an input winding coupled to receive the output voltage from the first transformer, and an output winding configured to generate an output voltage monitoring signal; and a controller configured to control the switching devices based on the output voltage monitoring signal. | 2022-07-28 |
20220239233 | METHOD OF COMMUNICATION THROUGH A FLYBACK POWER TRANSFORMER USING A ZERO VOLTAGE SWITCHING PULSE IN CRCM MODE - Techniques to send digital information from the secondary side to the primary side of a power converter, such as a flyback power converter, without the need for a separate, isolated communication channel. The power converter of this disclosure may send digital information from secondary side to the primary side through a power transformer while the power converter operates in a mixed mode scenario, e.g. critical conduction mode (CRCM) and discontinuous conduction mode (DCM). In CRCM, a controller circuit for the power converter may encode digital information by modulating the diode conduction time in a switching cycle. In DCM, the controller circuit may encode digital information by modulating the period of time for each switching cycle, e.g. increased period, decreased period or no change to the period. | 2022-07-28 |
20220239234 | POWER CONVERSION DEVICE - The connection distance between a first snubber circuit and the positive electrode of a first semiconductor element is shorter than the connection distance between the first snubber circuit and the positive electrode of a third semiconductor element. The connection distance between the first snubber circuit and the negative electrode of a fourth semiconductor element is shorter than the connection distance between the first snubber circuit and the negative electrode of a second semiconductor element. The connection distance between a second snubber circuit and the positive electrode of the third semiconductor element is shorter than the wiring distance between the second snubber circuit and the positive electrode of the first semiconductor element, and the connection distance between the second snubber circuit and the negative electrode of the second semiconductor element is shorter than the wiring distance between the second snubber circuit and the negative electrode of the fourth semiconductor element. | 2022-07-28 |
20220239235 | Adaptable DC-AC Inverter Drive System and Operation - Disclosed is an adaptable DC-AC inverter system and its operation. The system includes multiple DC input sources as input to provide a stable operation under various conditions. DC input sources may be added to the system or removed from the system without impacting the functionality of the system. The disclosed system is suited for solar energy harvesting in grid-connected or off-grid modes of operation. | 2022-07-28 |
20220239236 | TRIBOELECTRIC ENERGY GENERATION METHODS AND ARTICLES - Described herein are triboelectric energy generators that generally include a first flexible layer having a first electron donating material coated on at least a first surface and an electron accepting material coated over the first electron donating material, and a second flexible layer having a second electron donating material coated on at least a first surface. The first and second layers are positioned adjacent each other with their first surfaces facing inward toward each other and separated by a gap distance. An electric potential is generated upon movement between the first and second flexible layers, such as at least alternating contact and no-contact between the first and second flexible layers. The electron donating material may be provided by a particle-free conductive ink. | 2022-07-28 |
20220239237 | VIBRATION WAVE DRIVING APPARATUS - A vibration wave driving apparatus includes a vibrator configured to vibrate and movable relative to a friction member to generate a driving force, a pressing member configured to pressurize the vibrator, a transmission member configured to transmit a pressing force by the pressing member to the vibrator, a holding member configured to hold the vibrator, and a viscoelastic member configured to connect the holding member and the transmission member to each other. | 2022-07-28 |
20220239238 | ARTIFICIAL MUSCLES COMPRISING AN ELECTRODE PAIR HAVING FAN PORTIONS AND ARTIFICIAL MUSCLE ASSEMBLIES INCLUDING SAME - An artificial muscle includes an electrode pair including a first electrode and a second electrode. One or both of the first electrode and the second electrode includes a central opening. The first electrode and the second electrode each include two or more fan portions and two or more bridge portions. Each fan portion includes a first end having an inner length, a second end having an outer length, a first side edge extending from the second end, and a second side edge extending from the second end. The outer length is greater than the inner length. Each bridge portion interconnecting adjacent fan portions at the first end. | 2022-07-28 |
20220239239 | FAN MOTOR STOPPING APPARATUS - A fan motor stopping apparatus includes a conversion circuit that converts alternating-current voltage supplied from an alternating-current power supply into direct-current voltage, a smoothing capacitor that is connected to a fan motor included in an air conditioner and smooths the direct-current voltage from the conversion circuit, a voltage detection circuit that detects a voltage across the smoothing capacitor, and a fan motor shutdown circuit that suspends the fan motor in operation when the voltage detection circuit detects a voltage less than or equal to a threshold that is preset for suspending the operation of the fan motor. | 2022-07-28 |
20220239240 | DETECTING A DIRECTION OF MOTOR ROTATION IN SINGLE-PHASE CONVERTERS - An arrangement for detecting a direction of rotation of a multi-phase electric motor includes a plurality of single-phase converters. Each single-phase converter of the plurality of single-phase converters supplies one phase of the multi-phase electric motor with current. The arrangement also includes two sensor units that are configured to determine actual values of the phase currents of the multi-phase electric motor and to transmit the actual values to the plurality of single-phase converters. The arrangement also includes a monitoring and control unit in each converter of the plurality of single-phase converters. The monitoring and control unit is configured and programmed to determine the direction of rotation and a speed of rotation of the multi-phase electric motor from the actual values. | 2022-07-28 |
20220239241 | PAINT SPRAYER WITH DYNAMIC PULSE WIDTH MODULATION DRIVEN MOTOR - A fluid sprayer includes a housing, a pump, a nozzle, a high voltage direct current (HVDC) brushed electric motor that drives the pump, and a motor controller electrically connected to the motor. The motor controller drives the motor with a high speed pulse width modulated (PWM) drive signal that switches current through the motor on and off. The motor controller varies the PWM signal as a function of a spray setting input and sensed current through the motor. | 2022-07-28 |
20220239242 | SYSTEMS AND METHOD FOR OPTIMIZING ENGINE OPERATIONS IN GENSETS - A system includes a generator and an engine coupled to the generator. The engine is configured to provide mechanical power to the generator. The system further includes a controller coupled to the engine and the generator. The controller is configured to: receive information regarding an engine operating parameter threshold value at which an engine operating parameter value failed to match a load demand value that is indicative of a load exerted by the generator on the engine, and set the engine operating parameter threshold value as a maximum allowable engine operating parameter value for the engine. | 2022-07-28 |
20220239243 | Commutation Error Compensation Method and Apparatus for Electric Motor, and Storage Medium - A commutation error compensation method for an electric motor includes: when a rotor, that has not been corrected, in an electric motor rotates in a set direction, collecting a position signal and a three-phase current signal of the rotor, wherein the position signal of the rotor represents the rotation angle of the rotor; filtering processing on the three-phase current signal to obtain a fundamental component of the three-phase current signal, and determining a position error compensation signal of the electric motor on the basis of the fundamental component of the three-phase current signal; determining an ideal phase interval of the rotor according to the position error compensation signal and the position signal of the rotor; and determining an adjustment method for the rotor of the electric motor according to the ideal phase interval of the rotor, and commutating the rotor of the electric motor according to the adjustment method. | 2022-07-28 |
20220239244 | DIVIDED PHASE AC SYNCHRONOUS MOTOR CONTROLLER - A method for a circuit for a motor comprising first and second phase windings. The method comprises receiving AC power from the first and second phase windings at a DC power supply and converting the AC power to DC power and receiving AC power from the first and second phase windings by at least one power switch between the first and second phase windings and switching the AC power by the at least one power switch. The method includes preventing the DC power supply from collapsing, by a first component connected to the DC power supply, when the at least one power switch is on during a first portion of an AC cycle and preventing the DC power supply from collapsing, by a second component connected to the DC power supply, when the at least one power switch is on during a second portion of the AC cycle. | 2022-07-28 |
20220239245 | ARITHMETIC DEVICE AND MOTOR DRIVE DEVICE - An arithmetic device and a motor drive device including the arithmetic device capable of performing high accuracy motor current calculation, include a control unit performing an arithmetic processing including: acquire a duty ratio; calculate a waiting time according to the duty ratio and a waiting coefficient; detect a shunt current value at a detection timing after lapse of the waiting time; acquire, as a zero-cross current value, the shunt current value; calculate an average value using the shunt current values; and calculate an effective current value by correcting the average value using a correction coefficient. | 2022-07-28 |
20220239246 | CONTROLLER AND DRIVE CIRCUIT FOR ELECTRIC MOTORS - An electric motor system is described. The electric motor system includes a drive circuit including an inverter configured to supply variable frequency current and a contactor configured to supply line frequency current. The electric motor system also includes an electric motor coupled to the drive circuit wherein the electric motor is communicatively coupled to a controller. The controller is configured to control the inverter to supply variable frequency current to the electric motor, thereby operating the electric motor at a motor speed, and determine, based upon at least one input parameter, a maximum potential motor speed the inverter can achieve. The controller is also configured to receive a command to operate the electric motor at line frequency current and control the drive circuit to transition from supplying variably frequency current to supplying line frequency current before the maximum potential motor speed the inverter can achieve is reached. | 2022-07-28 |
20220239247 | HINGED SOLAR MOUNT - A solar mount, for use with a bracket attachment, has an open and a closed state. In the open state, grip flanges on two hinged arms can pass through a slot opening on the bracket attachment. In the closed state, the grip flanges cooperate with respective groves in the bracket attachment to secure the solar mount to the bracket attachment. In the closed state, a fastener attaches a solar accessory, such as a rail, and holds the two hinged arms together. A flexible mount helps hold the two hinged arms together in the open state, and also helps hold the two hinged arms in the closed state. | 2022-07-28 |
20220239248 | PRESSURE-DRIVEN SOLAR PHOTOVOLTAIC PANEL AUTOMATIC TRACKING DEVICE - A pressure-driven solar photovoltaic panel automatic tracking device includes a photovoltaic panel, a rotating shaft, a rotating wheel, a transmission component, a first counterweight, a second counterweight, a bellow tube, and a gas supply mechanism; the photovoltaic panel is fixed to the rotating shaft, the rotating wheel is fixed to the rotating shaft, the rotating wheel is provided with the transmission component, and both ends of the transmission component are respectively connected to the first counterweight and the second counterweight; the first counterweight is connected to the bellow tube, and the bellow tube is connected to the gas supply mechanism; and the bellow tube is expanded and contracted by controlling he gas supply mechanism, so that the first counterweight moves in the vertical direction, thereby driving the rotating wheel to rotate, so as to realize the automatic tracking of the sunlight by the photovoltaic panel. | 2022-07-28 |
20220239249 | AEROELASTIC STABILIZER - A system may include a support column, and a torsion beam connected to the support column and connected to one or more frames circumscribing one or more respective photovoltaic (PV) modules. An angle of orientation of the one or more frames may change based on rotation of the torsion beam. The system may also include an aeroelastic stabilizer associated with an edge of at least one of the frames. The association between the aeroelastic stabilizer and the edge of the at least one of the frames may include the aeroelastic stabilizer being fixedly coupled to the rail. The association between the aeroelastic stabilizer and the edge of the at least one of the frames may include the aeroelastic stabilizer being integrally formed with the rail to which the edge of the at least one of the frames is fixedly coupled. | 2022-07-28 |
20220239250 | SEALING ASSEMBLY AND ARRAY OF PHOTOVOLTAIC PANELS INCORPORATING SEALING ASSEMBLY - A seal assembly for arrangement between a first and a second photovoltaic panel is disclosed. The first and the second photovoltaic panel each includes an upper layer and a lower layer, wherein the upper layer is offset with respect to the lower layer at first and second side edges, such that the upper layer of the first photovoltaic panel at its second side edge partially overlaps the lower layer of the second photovoltaic panel at its first side edge. The seal assembly include an upper abutment part, a lower abutment part, and an intermediate part connecting the upper abutment part with the lower abutment part and configured for being arranged between the upper layer of the first photovoltaic panel and the lower layer of the second photovoltaic panel. Also, arrays of solar panels and roof structures including such seal assemblies are disclosed. | 2022-07-28 |
20220239251 | SYSTEM FOR PROVIDING THE ENERGY FROM A SINGLE CONTIGUOUS SOLAR ENERGY STRUCTURE TO AT LEAST TWO DIFFERENT METERS - In accordance with an example embodiment, a solar energy system comprises: a solar energy structure comprising photovoltaic solar panels contiguously covering an area; a first inverter configured to receive power from a first string of photovoltaic solar panels, wherein the first inverter is configured to provide the power received at the first inverter to a first meter; and a second inverter configured to receive power from a second string of photovoltaic solar panels, wherein the second inverter is configured to provide the power received at the second inverter to a second meter. | 2022-07-28 |
20220239252 | ENERGY HARVESTER - An energy harvester is provided. The energy harvester includes a current-voltage converter, a voltage-PWM converter, an analog multiplier, a sample-hold circuit, an α-generator, and a fractional open-circuit voltage circuit. | 2022-07-28 |
20220239253 | Cooling Plate For Solar Panel and Method For Manufacturing Same - According to one embodiment, a cooling plate for a solar panel for cooling a solar panel comprises: a planar body positioned on the rear surface of a solar panel; and a fluid guide part comprising a plurality of flow paths for guiding a fluid for cooling the solar panel, between inlets formed on one side of the planar body and outlets formed on the other side of the planar body, wherein the surface of the planar body that comes into direct contact with a back sheet of the solar panel may be flat. | 2022-07-28 |
20220239254 | TEMPERATURE COMPENSATED OSCILLATORS AND ASSOCIATED METHODS - Temperature compensated oscillators and associated methods are disclosed. The oscillator may include an inverter with a variable load configured to provide different conductance values based on an operating temperature of the oscillator. The variable load includes two or more branches in parallel, where each branch has a unique conductance value different from each other. Further, the variable load is coupled to a temperature sensor that generates signals based on determining the operating temperature. The signals of the temperature sensor can activate one or more branches of the variable load. As a result, the inverter may trigger at different voltage levels such that variations in the frequency of the clock signal that the oscillator generates can be reduced across different operating temperatures. | 2022-07-28 |
20220239255 | FAST STARTUP OF CRYSTAL AND OTHER HIGH-Q OSCILLATORS - Oscillator quick-startup circuit and method in which a voltage step is applied to a resonator (crystal) resulting in ringing which is amplified and fed into a locking circuit which locks to it, such as a programmable delay circuit. Once locking is complete, then the circuit is switched into a standalone oscillator mode, having a feedback path, the output of this injection oscillator energizes the resonator for achieving quick startup of a primary oscillator, in response to it automatically adjusting injection oscillator frequency to match the frequency of the resonator. A digital circuit controls the configuring of the circuit for applying the voltage step, adjusting the locking circuit, and then switching into a standalone oscillator mode. | 2022-07-28 |
20220239256 | OSCILLATOR - An oscillator in which crosstalk can be reduced is provided. An oscillator includes a SQUID, a transmission line connected to the SQUID, a ground plane, and a first connection circuit disposed in a vicinity of a node of an electric field of a standing wave that is generated when the oscillator is oscillating, the first connection circuit connecting parts of the ground plane located on both sides of the transmission line to each other. | 2022-07-28 |
20220239257 | WIDEBAND FILTER FOR DIRECT CONNECTION TO DIFFERENTIAL POWER AMPLIFIER - A filter device configured to directly connect to a differential power amplifier of a transmit chain circuit. The filter device may include a transformer and a filter configured as a half lattice equivalent topology and having a single-ended output. The filter may be a lattice filter configured as a full lattice topology or a lattice equivalent filter configured as a half lattice equivalent topology. The filter includes a first branch having a first impedance network of one or more first impedance elements and a second branch having a second impedance network of one or more second impedance elements. The single-ended output of the filter device may connect to an antenna switch that is in turn connected to an antenna. | 2022-07-28 |