Patent application number | Description | Published |
20090304536 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a terminal housing made of an electrically insulating material and accommodating therein an electrical connecting portion which includes a connecting terminal connecting to a conductive member and an electric wire. The compressor includes a first seal member and a second seal member to seal the inside of the terminal housing from the outside thereof. The terminal housing has a distance-increasing portion that increases the communicating distance from a compressor housing to the electrical connecting portion in the terminal housing. The distance-increasing portion allows the pressures in the terminal housing and the compressor housing to be equalized. | 12-10-2009 |
20090304539 | MOTOR-DRIVEN SCROLL TYPE COMPRESSOR - A motor-driven scroll type compressor has a motor that includes a rotary shaft and rotates the rotary shaft, a bearing for rotatably supporting front end of the rotary shaft, a fixed scroll member, a movable scroll member driven by rear end of the rotary shaft, compression chambers defined by the movable scroll member and the fixed scroll member and a housing. The rotation of the rotary shaft makes an orbital motion of the movable scroll member around the axis of the rotary shaft and accordingly the compression chambers are moved radially and inwardly thereby to compress the refrigerant gas. The compressor further has a suction chamber communicating with the compression chambers, a discharge chamber, an oil separation chamber separating lubricating oil from the refrigerant gas and communicating with the discharge chamber and a back pressure chamber provided in front of the movable scroll member in the housing and facing to the rear end of the rotary shaft. The back pressure chamber communicates with the oil separation chamber. The rotary shaft includes a first opening at a position adjacent to the front end of the rotary shaft and facing an inner surface of the bearing, a second opening at a position adjacent to the rear end of the rotary shaft and communicating with the back pressure chamber, a communication passage interconnecting the first opening and the second opening and a throttle formed by a clearance between the first opening and the inner surface of the bearing. | 12-10-2009 |
20100158710 | SCROLL COMPRESSOR - A compressor includes a housing, a fixed scroll, a movable scroll and a control valve. The housing has a suction chamber, a discharge chamber and a backpressure chamber formed therein. The scrolls are pressed against each other by backpressure in the backpressure chamber. The control valve for controlling the backpressure has first, second and third chambers arranged in this order. The first, second and third chambers are connected to the discharge chamber, the backpressure chamber and the suction chamber, respectively. The control valve has a valve member. The valve member has a first pressure-receiving surface located in the first chamber, a second pressure-receiving surface located in the second chamber and a third pressure-receiving surface located in the third chamber. The area of the third pressure-receiving surface is larger than the area of the first pressure-receiving surface and larger than the area of the second pressure-receiving surface. | 06-24-2010 |
20110058973 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a compression mechanism, an electric motor, a compressor housing, a conductive member, a terminal base, an insulating member, a connection terminal, a wire assembly, a terminal housing, first and second holes formed through the terminal housing and first and second seal members. The conductive member extends from the inside to the outside of the compressor housing and connected electrically to the connection terminal at a terminal connection. The wire assembly has a core wire connecting electrically between the connecting terminal and the electric motor, and an insulator covering the core wire. The terminal housing disposed in the compressor housing covers the terminal connection. The wire assembly has an insulating tube covering the insulator, wherein both ends of the insulating tube are opened for communicating with the inside and the outside of the terminal housing through a clearance formed between the insulating tube and the insulator. | 03-10-2011 |
20110175470 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a housing having at one end thereof an accommodation space, an electric motor, a motor driver circuit provided in the accommodation space and having a circuit board, a connector having a bus bar electrically connected to the circuit board, and a cylindrical portion located at the one end of the housing and extending toward the direction close to the electric motor. The housing has a mounting hole communicating with the accommodation space and the interior of the cylindrical portion. The bus bar has a bent shape having opposite ends extended toward the direction close to the electric motor. The connector is disposed in the mounting hole with one end of the bus bar inserted in the cylindrical portion and the other end of the bus bar inserted in the accommodation space. The mounting hole is closed up by a cover with a seal member provided therebetween. | 07-21-2011 |
20120087811 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a shell, an electric motor, a first conductor electrically connected to an external power source, a second conductor electrically connected to the electric motor, a connector connecting the first conductor and the second conductor and a connector case. The connector case has a first case member, a second case member, a first and a second seal members interposed between the first and the second case members, a hole through which the first conductor is inserted and a third seal member sealing between the first conductor and the connector case. A first main seal of the first seal member and a second main seal of the second seal member cooperate to form a cylindrical seal portion for sealing the second conductor that is inserted through the cylindrical seal portion when the first and the second seal members are joined. | 04-12-2012 |
20130108485 | MOTOR-DRIVEN COMPRESSOR | 05-02-2013 |
20130108486 | MOTOR-DRIVEN COMPRESSOR | 05-02-2013 |
20130189091 | MOTOR-DRIVEN COMPRESSOR AND METHOD FOR MANUFACTURING THE SAME - A motor-driven compressor includes an electric motor having a stator core, a compression mechanism driven by the electric motor, a motor housing accommodating the electric motor, and a cluster block engaged with the stator core in the motor housing. The stator core of the electric motor and the motor housing are assembled by shrink fit. The cluster block accommodates a connecting terminal for electrical connection between a conductor connected to a motor drive circuit and a lead wire drawn from the electric motor. The cluster block has a terminal hole for receiving the connecting terminal and has an opening that is provided separately from the terminal hole. | 07-25-2013 |
20130251557 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes an electric motor, a compression mechanism driven by the electric motor to compress refrigerant, a housing accommodating the electric motor and the compression mechanism, and a support having a mounting to be fastened to an object by a fastener. One of the housing and the support has a projection and the other of the housing and the support has a recess that is engaged with the projection through a vibration damper so that the support supports the housing. | 09-26-2013 |
20140178232 | SCROLL COMPRESSOR - A scroll compressor includes a housing having therein a discharge pressure region, a compression pressure region and a suction pressure region; a fixed scroll to form a discharge chamber as the discharge pressure region; and a movable scroll cooperating with the fixed scroll to form a compression chamber as the compression pressure region. The discharge pressure region includes an oil separation chamber connected to at least one of the compression pressure region and the suction pressure region through an oil supply passage having a flow restrictor. The flow restrictor is provided by a gap between an oil supply hole formed in the fixed scroll and an insertion member inserted in the oil supply hole. The gap is in the form of a spiral groove provided in at least one of an inner peripheral surface of the oil supply hole and an outer peripheral surface of the insertion member. | 06-26-2014 |
20140369819 | METHOD FOR MANUFACTURING ANTI-ROTATION RING OF SCROLL TYPE COMPRESSOR AND ANTI-ROTATION MECHANISM OF THE SCROLL TYPE COMPRESSOR - In a method for manufacturing an anti-rotation ring of a scroll type compressor, wherein the anti-rotation ring is provided in an anti-rotation mechanism for preventing a movable scroll from rotation on its own axis and made of a metal, the steps of the method include drawing a steel plate into a first intermediate body having a bottomed cylindrical shape, punching the bottom of the first intermediate body thereby to make a second intermediate body and ring forming the second intermediate body. | 12-18-2014 |
Patent application number | Description | Published |
20090010786 | Electrically-Driven Compressor - An electrically-driven compressor including a housing, an electric motor, a compression mechanism, a cover member, a motor drive circuit, and a sealing member is disclosed. The electric motor is accommodated in the housing. The compression mechanism is accommodated in the housing and operated by the electric motor. The cover member is attached to the housing. The housing and the cover member form an accommodation portion including an accommodation space therein. The motor drive circuit is accommodated in the accommodation space and drives the electric motor. The sealing member is arranged between the housing and the cover member to seal the accommodation space. The sealing member includes an elastic seal portion that comes into close contact with the housing and the cover member. A core sustains the shape of the seal portion in conformance with the circumferential edge of the accommodation space. The core is formed so that at least a circumferential edge part of the core is in conformance with the circumferential edge of the accommodation space. The seal portion is formed integrally with the circumferential edge part of the shape sustaining member by depositing rubber material thereon. | 01-08-2009 |
20090155101 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor has a compression mechanism, a rotary shaft, an electric motor, a motor drive circuit, a connecting terminal and a housing assembly. The compression mechanism, the electric motor, and the motor drive circuit are disposed along the axial direction of the rotary shaft in the housing assembly having first through third housings. The first housing is used for mounting the electric motor and the compression mechanism. The second housing has a terminal mounting portion for fixing the connecting terminal. The first and second housings have fastening portions at the radially peripheral portion thereof. The third housing is joined to the second housing to form an accommodation space for accommodating the motor drive circuit. The closed casing is formed by fastening the fastening portions of the first and second housings by means of a first bolt and connecting the second housing to the open end of the first housing. | 06-18-2009 |
20090162221 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a housing having an inlet port, a compression mechanism for compression of refrigerant introduced from an external refrigerant circuit via the inlet port into the housing, an inverter having a heat-generating component, an electric motor driven by the inverter, and a rotary shaft rotated by the electric motor thereby to drive the compression mechanism. The electric motor, the compression mechanism and the inverter are aligned in the housing in axial direction of the rotary shaft. An inlet pipe is connected to the inlet port. The housing has an outer peripheral surface in contact with the inlet pipe. The heat-generating component of the inverter is disposed adjacent to or in contact with the inlet pipe so as to be thermally coupled to the inlet pipe. | 06-25-2009 |
20090162222 | MOTOR-DRIVEN COMPRESSOR - A compressor includes a housing having an inlet port, a compression mechanism for compression of refrigerant introduced via the inlet port into the housing, a motor having a stator core and a coil, an inverter for driving the motor, and a rotary shaft rotated by the motor thereby to drive the compression mechanism. The compression mechanism, the motor and the inverter are aligned in the order in the housing in axial direction of the rotary shaft. The coil has a coil end projecting toward the inverter from the stator core and being disposed adjacent to an inner peripheral surface of the housing. The inlet port is located so as to face the coil end. A recess is formed on the inner peripheral surface of the housing for communicating with the inlet port. The recess extends in the axial direction of the rotary shaft toward the inverter beyond the coil end. | 06-25-2009 |
20090269222 | MOTOR-DRIVEN COMPRESSOR - An electric motor includes a cylindrical stator that is formed with a plurality of slots. The cylindrical stator has polyphase coils that are formed by winding a plurality of conductive wires in the slots to have polyphase, a wire bundle and an insulating tube covering the wire bundle. Each conductive wire includes a core wire and an insulator that covering the core wire. The wire bundle has a drawing portion, a connecting portion and an elongated portion that is elongated between the drawing portion and the connecting portion for increasing creepage distance between the connecting portion and the housing thereby to increase insulation resistance. The connecting portion of the wire bundle provides a neutral point of the electric motor. The elongated portion and the connecting portion of the wire bundle are covered with the insulating tube. | 10-29-2009 |
20110243763 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor is to be mounted to a first mounting of a vehicle. The compressor includes a housing having therein a compression mechanism that is electrically powered to draw fluid into the housing for compression and to discharge the compressed fluid out of the housing, and a second mounting for securing the housing to the first mounting. The second mounting includes a first cylindrical member, a damping member made of a resin and provided between the first cylindrical member and the housing, a first fastening member extending through the first cylindrical member and the damping member for securing the first cylindrical member and the damping member to the housing, and a second fastening member inserted through the first cylindrical member for securing the first cylindrical member to the first mounting. | 10-06-2011 |
20110243764 | MOTOR-DRIVEN COMPRESSOR - The motor-driven compressor is mounted on a first mounting of a vehicle. The motor-driven compressor includes a compressor body, a second mounting, a first spacer, a flexible conductor and a fastener. The compressor body is electrically powered to draw in fluid for compression and to discharge the compressed fluid. The second mounting is formed on the compressor body and has a mounting hole. The first spacer is made of a resin and interposed between the first mounting and the second mounting. The conductor is formed integrally with the first spacer for electrically connecting the first mounting and the second mounting. The fastener is made of a resin and inserted through the mounting hole of the second mounting for joining the first mounting and the second mounting. | 10-06-2011 |
20110243765 | MOTOR-DRIVEN COMPRESSOR - The motor-driven compressor is mounted on a mounting of a vehicle. The motor-driven compressor includes a compressor body, a mounting, a damper and a fastener. The compressor body is electrically powered to draw in fluid for compression and to discharge the compressed fluid. The mounting of the compressor is formed on the compressor body and has a mounting hole. The damper is made of a resin and receives therein the mounting of the compressor. The damper is interposed between the compressor body and the mounting of the vehicle and has a through hole. The fastener is inserted through the through hole of the damper and the mounting hole of the compressor for securing the damper to the mounting of the vehicle. | 10-06-2011 |
20110243767 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor is to be mounted to a first mounting of a vehicle. The compressor includes a compressor body that is electrically powered to draw in fluid for compression and to discharge the compressed fluid, and a second mounting for securing the compressor body to the first mounting. The second mounting includes a first mounting member having a first mounting hole, a second mounting member provided away from the first mounting member and having a second mounting hole, a resin member integrally formed with the first and second mounting members and provided at least between the first mounting member and the compressor body, a first fastening member inserted through the first mounting hole for securing the first mounting member to the first mounting, and a second fastening member inserted through the second mounting hole for securing the second mounting member to the compressor body. | 10-06-2011 |
20110243777 | SCROLL COMPRESSOR - [Object] To provide a scroll compressor capable of improving compression efficiency.
| 10-06-2011 |
20120141307 | ELECTRIC COMPRESSOR - An electric compressor includes a compression mechanism, an electric motor for driving the compression mechanism, and a drive circuit for controlling the electric motor. The drive circuit includes an external connector made of an insulating material. The external connector has a connecting terminal that is constructed to be electrically connected to an external power source. The drive circuit further includes a circuit board electrically connected to the connecting terminal and a filter element electrically connected to the circuit board. The drive circuit is accommodated in a metal housing. The filter element is integrally formed with the external connector such that contact of the filter element with the housing is prevented. | 06-07-2012 |
20120175981 | FIXING STRUCTURE FOR ELECTRICAL COMPONENT - A fixing structure for an electrical component includes a heat removing member for removing heat from the electrical component. The heat removing member has a receiving portion for receiving the electrical component. The fixing structure for an electrical component further includes a separation member that is coupled to the electrical component to separate the electrical component from the heat removing member. The separation member is coupled to the heat removing member. The fixing structure for an electrical component includes a soft material member that is accommodated in the receiving portion to contact the receiving portion and the electrical component. Heat of the electrical component is transmitted to the heat removing member via the soft material member. | 07-12-2012 |
20120230849 | MOTOR-DRIVEN COMPRESSOR AND MOUNTING METHOD FOR MOTOR-DRIVEN COMPRESSOR - A stator core includes an insertion hole that has an opening in an outer peripheral surface of the stator core and a bent portion in the stator core. A cluster block includes an insertion piece, which is inserted into the insertion hole via the cornered portion. The cluster block is attached to the stator core by engaging the insertion piece with the insertion hole. | 09-13-2012 |
20120237376 | COMPRESSOR - An electric compressor includes an inverter cover. The inverter cover has a metal plate that is arranged to cover an inverter (a circuit board). The metal plate has bolt insertion holes, through which metal bolts for fixing the inverter cover to a suction housing are passed. The head of each bolt contacts a flange portion, which is the periphery of the corresponding bolt insertion hole. The inverter cover is formed of plastic by being molded in a mold, using the metal plate as a core. | 09-20-2012 |
20120251348 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor that suppresses the transmission of vibration and noise to the exterior. The motor-driven compressor includes a housing and a compressor mechanism and motor mechanism, which are arranged in the housing. The compressor mechanism draws refrigerant into the housing, compresses the refrigerant, and discharges the refrigerant from the housing. The motor mechanism actuates the compressor mechanism. The housing includes a first housing, in which the compressor mechanism and the motor mechanism are fixed, and a second housing, which includes a mounting portion that can be mounted to another member. An anti-vibration member is arranged between the first housing and the second housing. | 10-04-2012 |
20120251350 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor comprises a mounting portion for mounting a housing including a fluid compression mechanism to an attachment section of a vehicle. The mounting portion includes a tubular body, a damping member provided integrally with the tubular body and formed from a resin, a fixing member provided integrally with the damping member and mounting the integrated tubular body and damping member to the housing, and a fastening member mounting the tubular body to the attachment section. The damping member is provided to be interposed between the tubular body and the fixing member, and the fixing member is provided to be interposed between the housing and the damping member. | 10-04-2012 |
20120251356 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor that prevents electric leakage from a drive circuit while suppressing the generation of noise. The motor-driven compressor includes a compressor mechanism that compresses a refrigerant, a motor mechanism that actuates the compressor mechanism, a drive circuit that drives the motor mechanism. The drive circuit is connected to a power supply. An inner housing accommodates the compressor mechanism and the motor mechanism in a sealed state and holds the drive circuit. An outer housing accommodates the inner housing and includes a mounting portion that can be mounted to another member. An intermediate member arranged between the inner housing and the outer housing and between the drive circuit and the outer housing. The intermediate members include anti-vibration and thermal insulation properties. A protector protects the drive circuit from an external impact, wherein the protector is arranged on the outer housing. | 10-04-2012 |
20120251357 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor to be mounted to an attachment section of a vehicle includes a fluid compression unit, an electric drive unit for the compression unit and a case. The case has a main body formed from a resin and covering at least the compression unit, and a mounting portion that is provided integrally with the main body and configured to be mounted to the attachment section. The mounting portion has a tubular body provided integrally with the main body and a fastening member inserted into the tubular body for mounting the tubular body to the attachment section. The main body is interposed between the compression unit and the tubular body. | 10-04-2012 |
20120251358 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor that suppresses the transmission of vibration and noise to the exterior, while obtaining heating performance that is sufficient for use in a heat pump. The motor-driven compressor includes a compressor mechanism, which compresses a refrigerant, and a motor mechanism, which actuates the compressor mechanism. The motor-driven compressor further includes an inner housing, which accommodates the compressor mechanism and the motor mechanism in a sealed state, and an outer housing, which accommodates the inner housing. The outer housing includes a mounting portion that can be mounted to another member. A first intermediate member is arranged between the inner housing and the outer housing. The first intermediate member includes anti-vibration and thermal insulation properties. | 10-04-2012 |
20120251361 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes an electric motor, a compression mechanism, which compresses gas by being driven by the electric motor, and a body accommodating the electric motor and the compression mechanism. The motor-driven compressor includes a motor control section, which drives the electric motor by controlling power supply to the electric motor, a vibration control section, which generates a waveform in a phase opposite to the waveform of vibration predicted to be generated in the body due to the driving of the electric motor, and a vibration applying device, which is located on the body and applies vibration in the opposite phase generated by the vibration control section to the body. | 10-04-2012 |
20130017100 | MOTOR-DRIVEN COMPRESSORAANM OTA; TakayukiAACI Kariya-shiAACO JPAAGP OTA; Takayuki Kariya-shi JPAANM SUITOU; KenAACI Kariya-shiAACO JPAAGP SUITOU; Ken Kariya-shi JP - A motor-driven compressor includes an inner housing member that accommodates a compression mechanism and a motor mechanism in a sealed state. The motor-driven compressor also includes an outer housing member that accommodates the inner housing member and has attachment portions, which are fixed to a target through bolts. The inner housing member has a suction port for drawing refrigerant into the compression mechanism and a discharge port for discharging the refrigerant from the compression mechanism. A suction member and a discharge member, which are connected to the suction port and the discharge port, respectively, are fixed to the inner housing member. The outer housing member is formed of vibration-absorbing and heat-insulating material. The outer housing member is combined with the inner housing member such that the outer housing member accommodates the inner housing member and is held in a non-contact state with respect to the suction member and the discharge member. | 01-17-2013 |
20130094987 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a compression mechanism. The compression mechanism includes a stationary scroll and a movable scroll. The movable scroll and the stationary scroll form a compression chamber. The motor-driven compressor has an electric motor accommodated in a motor chamber, a suction pressure zone, a discharge pressure zone, and an oil passage, which is connected either to the compression chamber or the discharge pressure zone. The electric motor includes a rotary shaft and drives the movable scroll via the rotary shaft. A main bearing located in the vicinity of the compression mechanism rotationally supports the rotary shaft. The rotary shaft has an in-shaft passage. The in-shaft passage has an inlet, which is directly connected to the oil passage, and an outlet, which opens to the motor chamber. The main bearing is exposed in the oil passage. The motor chamber is the suction pressure zone. | 04-18-2013 |
20130129551 | COMPRESSOR FOR VEHICLE - With regard to a scroll compressor, a compression portion is rotatably connected with one end portion of a rotating shaft. A first shaft portion formed at one end portion of the rotating shaft is supported through a first bearing by a partition. A second shaft portion formed at the other end portion of the rotating shaft is supported through a second bearing by a cylindrical shaft support. A coil spring is interposed between a second inner race of a second bearing and a spring receiving portion of the rotating shaft which faces the second inner race in the shaft direction of the rotating shaft. The structure reduces vibration toward the shaft length direction of the rotating shaft and minimizes common vibrations together with vehicle side vibrations. | 05-23-2013 |
20130259726 | MOTOR-DRIVEN COMPRESSOR - A motor-driven compressor includes a back pressure region that pushes a movable scroll against a fixed scroll. The back pressure region is located at a side of the movable scroll located proximate to an opposing member. A defining portion, which is arranged on a movable end face, contact an opposing end face to define the back pressure region and a suction pressure region. The opposing member includes a communicating portion. An orbiting motion of the movable scroll moves the defining portion. This intermittently communicates the communicating portion with the back pressure region and the suction pressure region. | 10-03-2013 |
20140003973 | MOTOR-DRIVEN COMPRESSOR | 01-02-2014 |
20140003974 | MOTOR-DRIVEN COMPRESSOR | 01-02-2014 |
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 |
20140134032 | SCROLL COMPRESSOR - A scroll compressor includes a rotation shaft, a fixed scroll, a movable scroll, a compression chamber, and a shaft support. A movable member is movable in an axial direction of the rotation shaft toward and away from the movable scroll. A rotation restriction mechanism includes a pin and a hole that is loosely fitted into the hole. An orbital radius switching mechanism moves the movable member in a first direction when a rotation speed of the rotation shaft is increased, which decreases an orbital radius of the pin relative to the hole so that an orbital radius of the movable scroll is decreased, and moves the movable member in a second direction when the rotation speed of the rotation shaft is decreased, which increases the orbital radius of the pin relative to the hole so that the orbital radius of the movable scroll is increased. | 05-15-2014 |
20140134033 | SCROLL COMPRESSOR - A scroll compressor includes a rotation shaft, a fixed scroll, a movable scroll, a compression chamber, a shaft support, a housing, a movable member arranged in the shaft support, and a rotation restriction mechanism configured to restrict rotation of the movable scroll. The rotation restriction mechanism includes pins, recesses into which the respective pins are loosely fitted, and the movable member. The movable member includes the pins or the recesses. A switching mechanism is configured to switch the movable member between a state in which movement of the movable member in a radial direction of the rotation shaft is restricted and a state in which the restriction is canceled and the movable member can move freely, which changes a movable range of the movable member in the radial direction so that an orbital radius of the movable scroll is changed. | 05-15-2014 |
20140248172 | SCROLL COMPRESSOR - A scroll compressor includes a housing, a fixed scroll, and a movable scroll. A compression chamber is formed between the movable scroll and the fixed scroll. An opposing wall is located in and fixed to the housing. A back pressure region is formed between the opposing wall and the movable scroll, and a back pressure in the back pressure region urges the movable scroll toward the fixed scroll. An annular sealing member is arranged between the movable scroll and the opposing wall. The movable scroll includes a holding portion that holds the sealing member. The sealing member includes a rubber portion, which elastically deforms in the holding portion, and a resin portion, which is made of a material harder than the rubber portion. The resin portion at least partially projects out of the holding portion toward the opposing wall. The resin portion is in contact with the opposing wall. | 09-04-2014 |
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 |
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 |