Patent application number | Description | Published |
20140037470 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a compression unit, an electric motor, a housing, a cover, wherein the cover includes a main body and a connector coupler, and the cover and the housing define an accommodating chamber, a motor driving circuit that is accommodated in the accommodating chamber and includes a circuit board, and a metal terminal held in the connector coupler, wherein the metal terminal includes first and second end portions. The cover has a shield including a first shield portion, which blocks electromagnetic noise and forms at least part of the connector coupler, and a second shield portion, which blocks electromagnetic noise and forms at least part of the main body. The first and second shield portions are coupled to each other. The second shield portion includes an insertion hole into which one of the first and second end portions of the metal terminal is insertable. | 02-06-2014 |
20140134017 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor that includes a metal housing accommodating a compression unit and an electric motor, a cover coupled to the housing, wherein the cover includes a resin portion and a metal shield, and the shield blocks electromagnetic noise, and a bolt that couples the cover to the housing. The housing and the cover define an accommodating chamber that accommodates a motor driving circuit that drives the electric motor. The cover includes an insertion hole into which the bolt is insertable. The shield includes a seat that surrounds the insertion hole and is held between the bolt and the housing. The cover is configured to allow for an axial force of the bolt to be applied to the seat and not to the resin portion. | 05-15-2014 |
20140294624 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor that includes a compression unit, an electric motor, a housing, a cover, and a motor driving circuit. A metal terminal electrically connects the electric motor to the motor driving circuit. A coupling base is coupled to the housing, and the motor driving circuit is coupled to the coupling base. Each of the coupling base and the housing includes an insertion portion through which the metal terminal is inserted. At least one of the coupling base and the housing includes a protrusion. The protrusion is separated from the insertion portions. At least the other of the coupling base and the housing includes a receiving portion that receives the protrusion. The coupling base is positioned relative to the housing by connection of the insertion portion of the coupling base and the insertion portion of the housing and by engagement of the protrusion and receiving portion. | 10-02-2014 |
20140294628 | MOTOR-DRIVEN COMPRESSOR AND MANUFACTURING METHOD THEREOF - To provide a motor-driven compressor which suppresses heat generation, enables power saving, exerts excellent durability, lowers a manufacturing cost, and hardly produces a defective product. The motor-driven compressor according to the present invention comprises a cover. The cover includes a first connector portion, first and second wires, and first and second resin portions. The first and second wires include first and second terminal portions having a cylindrical shape, lead portions, and first and second lid portions that are supported at opening end portions of the first and second terminal portions. The first and second lid portions close the opening end portions of the first and second terminal portions, and thereby prevent an insulating resin from entering the first and second terminal portions. | 10-02-2014 |
20140377094 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor that includes a compression unit adapted to compress refrigerant, an electric motor adapted to drive the compression unit, and a housing that accommodates the compression unit and the electric motor and includes a coupling member. A motor driving circuit drives the electric motor. The motor driving circuit includes a circuit board and a capacitor, which is electrically connected to the circuit board. A capacitor holder holds the capacitor and is coupled to the coupling member. One of the capacitor holder and the coupling member includes a projection, and the other one of the capacitor holder and the coupling member includes an engagement portion that engages with the projection. Engagement between the projection and the engagement portion positions the capacitor holder relative to the coupling member. | 12-25-2014 |
20140377095 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a motor driving circuit including a capacitor electrically connected through a lead to a circuit board, and a capacitor holder that is made of a plastic and holds the capacitor. The capacitor holder includes a side wall, which covers a side surface of the capacitor. The lead protrudes from the side surface. The side wall includes a through-hole, which opens through each of a first end surface of the side wall facing the circuit board and a second end surface of the side wall opposite to the circuit board and guides the lead to a portion of the circuit board to which the lead is to be connected. The side wall includes a wall surface facing the capacitor. The wall surface includes a slit, which is continuous with the through-hole and opens opposite to the circuit board. | 12-25-2014 |
20140377096 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a motor driving circuit, which includes a capacitor electrically connected to a circuit board, and a capacitor holder, which holds the capacitor. The capacitor holder includes a side wall body, which covers a side surface of the capacitor, a first retainer, which extends from the side wall body to the circuit board and engages with a first end surface of the capacitor, and a second retainer, which extends from the side wall body in a direction away from the circuit board and holds the second end surface of the capacitor. The length of the second retainer in the extending direction of the second retainer is greater than the length of the first retainer in the extending direction of the first retainer. | 12-25-2014 |
20140377097 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor that includes a compression unit adapted to compress refrigerant, an electric motor adapted to drive the compression unit, and a housing that accommodates the compression unit and the electric motor. The housing includes a coupling member. A motor driving circuit is adapted to drive the electric motor. The motor driving circuit includes a circuit board and a capacitor, which is electrically connected to the circuit board. The capacitor includes a side surface and an end surface that faces the coupling member. A resin material is located between the coupling member and the capacitor. The coupling member includes a facing surface that faces the capacitor. The facing surface includes a recess extending away from the capacitor. The recess receives some of the resin material. | 12-25-2014 |
20150037179 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a metal housing accommodating a compression unit and an electric motor and a resin cover coupled to the housing. The cover and the housing define an accommodation chamber that accommodates a motor driving circuit that drives the electric motor. A metal shield is fixed to the cover and blocks electromagnetic noise. The shield and the cover are stacked together. A sealing member located between the shield and the cover. The sealing member is configured to block entry of foreign matter into the accommodation chamber through a gap between the shield and the cover. | 02-05-2015 |
20150054365 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a metal housing accommodating a compression unit and an electric motor and a cover coupled to the housing. The cover and the housing define an accommodation chamber that accommodates a motor driving circuit that drives the electric motor. The cover includes a metal shield that blocks electromagnetic noise, a resin outer insulator that is fixed to an outer side of the shield and includes an outer circumferential portion, and a resin inner insulator that is fixed to an inner side of the shield and includes an outer circumferential portion. The shield, the outer insulator, and the inner insulator are separate from one another and stacked together. The shield is held between the outer insulator and the inner insulator. The outer circumferential portion of the outer insulator is joined to the outer circumferential portion of the inner insulator. | 02-26-2015 |
20150061421 | ELECTRIC COMPRESSOR - An electric compressor includes: a compressing unit; an electric motor that rotates the compressing unit; and a driving circuit. The driving circuit includes a filter circuit, an inverter circuit that receives electric power from the power supply line via the filter circuit, and a circuit board on which the inverter circuit is disposed, and a base member (aluminum base) and that supports the circuit board. The filter circuit has an electromagnetic coil and a damping resistor. The damping resistor is fixed to the aluminum base in abutment with the aluminum base. Preferably, the filter circuit is mounted on the circuit board, and the damping resistor has a lead line soldered to the circuit board and is fixed to the aluminum base by a screw. With this, there can be provided the electric compressor capable of effectively cooling the damping resistor of the filter circuit. | 03-05-2015 |
20150061558 | ELECTRIC COMPRESSOR - An electric compressor capable of discharging electric charges of a capacitor is provided. The electric compressor includes: a compressing unit; an electric motor for rotating the compressing unit; a driving circuit for driving the electric motor; a housing for accommodating the compressing unit and the electric motor; and an inverter cover for accommodating the driving circuit. An outline of the electric compressor is formed by the housing and the inverter cover. The driving circuit includes: an inverter circuit for receiving electric power from a power supply line; a capacitor circuit connected between the power supply line and a ground line; and an electrically discharging circuit, connected to the capacitor circuit, for discharging electric charges accumulated in the capacitor circuit. The electric compressor further includes a capacitor cover, disposed inside the inverter cover, for encompassing and accommodating at least the capacitor circuit and the electrically discharging circuit. | 03-05-2015 |