DE20320643U1 - 2002JP127299egrated motor for driving air conditioner of automotive vehicle, has bus-bar integrated plate set at radial outer side of modules to extend to tangential direction of motor, in which gap is formed between plate and motor - Google Patents

2002JP127299egrated motor for driving air conditioner of automotive vehicle, has bus-bar integrated plate set at radial outer side of modules to extend to tangential direction of motor, in which gap is formed between plate and motor

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Publication number
DE20320643U1
DE20320643U1 DE20320643U DE20320643U DE20320643U1 DE 20320643 U1 DE20320643 U1 DE 20320643U1 DE 20320643 U DE20320643 U DE 20320643U DE 20320643 U DE20320643 U DE 20320643U DE 20320643 U1 DE20320643 U1 DE 20320643U1
Authority
DE
Germany
Prior art keywords
section
motor
housing
converter
switching elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE20320643U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2002127310A priority Critical patent/JP3760887B2/en
Priority to JP2002127299A priority patent/JP3786356B2/en
Priority to JP2002127310 priority
Priority to JP2002127299 priority
Priority to JP2002329764 priority
Priority to JP2002329764A priority patent/JP3802477B2/en
Priority to JP2002357255A priority patent/JP2004190525A/en
Priority to JP2002357255 priority
Application filed by Denso Corp filed Critical Denso Corp
Priority to EP03009368A priority patent/EP1363026A3/en
Publication of DE20320643U1 publication Critical patent/DE20320643U1/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00Piston pumps characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04Piston pumps characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10Outer members for co-operation with rotary pistons; Casings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12Casings; Cylinders; Cylinders heads; Fluid connections
    • F04B39/121Casings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0042Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/0085Prime movers
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K11/00Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30Structural association with control circuits or drive circuits
    • H02K11/33Drive circuits, e.g. power electronics
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2203/00Motor parameters
    • F04B2203/02Motor parameters of rotating electric motors
    • F04B2203/0204Frequency of the electric current
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00Components
    • F04C2240/80Other components
    • F04C2240/808Electronic circuits (e.g. inverters) installed inside the machine
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B2400/00General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/07Details of compressors or related parts
    • F25B2400/077Compressor control units, e.g. terminal boxes, mounted on the compressor casing wall containing for example starter, protection switches or connector contacts
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225Terminal boxes or connection arrangements

Abstract

Motor with an integrated converter for a motor vehicle, comprising:
a housing (4);
a cylindrical motor section (2) housed in the housing (4); and
an inverter circuit section (5) attached to the housing for converting DC power to three-phase AC power and supplying the converted three-phase AC power to the motor section (2);
characterized in that
the converter circuit section (5) has:
Power switching elements (6) which form respective branches of a three-phase converter circuit;
a smoothing capacitor (7) connected between a pair of DC input terminals of the three-phase converter circuit;
a control circuit for controlling the power switching elements (6) and
a wiring section (8) for connecting the power switching elements (6), the smoothing capacitor (7) and the control circuit,
the wiring section having an integrated busbar plate (81) containing numerous busbars integrally molded in a resin plate section (83) to ensure mutual electrical insulation, and the integrated busbar plate (81) on the outer surface of the cylindrical wall of the housing (4 ) via the cast resin plate section (83), ...

Description

  • BACKGROUND FIELD OF THE INVENTION Field of the Invention
  • The The present invention relates to a motor with an integrated converter for a Motor vehicle and in particular relates to the improvement of its converter section.
  • description state of the art
  • Around keep an air conditioning system up and running when an internal combustion engine while a short period of time is stopped (e.g. while a so-called "idle stop" operation) is conventionally known the existence motor-driven compressor preferably for a cooling circuit system of a motor vehicle is used. moreover is conventional known that a Motor section of the motor-driven compressor by means of a low-pressure coolant chilled becomes.
  • Of there is also a conventional motorized one Compressor, on which a converter section is mounted, which already for motor vehicles available is. The converter section is equipped around an AC motor to drive while supplying a DC power. This conventional one motor-driven compressor with integrated converter contains in particular a motor section and a compressor section which are in an axial direction are connected. An inverter section is on one end surface of the Motor section opposite attached to the compressor section. The converter section contains three-phase converter modules for Conversion of DC power into three-phase AC power and to feed the converted AC power to the motor section, one smoothing capacitor to suppress DC peaks of the three-phase converter modules, a printed circuit board, on which an integrated control circuit for intermediate control of switching elements of the three-phase converter modules and also an integrated power source circuit is mounted, as well as a Heatsink on attached to the underside of the integrated three-phase converter circuit is.
  • Corresponding the conventional one described above motor-driven compressor with integrated converter for a motor vehicle, However, the motor section and the compressor section are in the axial direction arranged. The axial length the device tends to be long. It is therefore difficult the conventional Belt driven compressor by the motor driven described above Replace compressor with integrated converter. In other words it is necessary to design various devices which to be placed in the engine compartment to change if the above-described motor-driven compressor with integrated Converter is installed in the engine compartment. The proceedings and increase costs yourself.
  • Further tends the available capacity or the volume of the engine compartment for those with the engine associated devices. The motor-driven compressor with integrated converter must be downsized and the weight can be reduced.
  • Further need the three-phase converter modules in the converter section definitely suitable cooling system. However, it was difficult to cool the converter section if this is arranged adjacent to the motor section. Corresponding the conventional motor-driven compressor with integrated converter is special a cooling fan on one Rotor attached to the cooling air to feed different parts of the motor section. Alternatively, the engine section through a low pressure coolant cooled. However, the cooling air or the low pressure coolant is not simply effective in the direction of the converter section in the axial direction via a to lead branched or curved route or flow channel or initiate.
  • Around to solve the above problems Is it possible, the converter section on a housing, in particular on a Outer surface of the cylindrical wall of the motor section. In this case however, it is all necessary of the circuit components on the outer surface of the cylindrical wall to arrange the motor section. The circuit components included the power switching elements, the smoothing capacitor and the control circuit, which form the three-phase circuit as well as numerous power and control wiring. This inevitably increases the circumferential and axial size of the device. This makes the wiring work more complicated. The increase in Cable or wiring length leads to Increase in wiring inductance and wiring resistance.
  • The problems described above are not limited to motor-driven compressors with an integrated converter and are also inherent in all motors with an integrated converter for motor vehicles. The downsizing of the converter section is therefore necessary for motors with an integrated converter for motor vehicles. In addition to downsizing, it is particularly important to ensure anti-vibration properties for motors with an integrated converter for motor vehicles. The wiring of the converter section is definitely required, for example, to ensure an adequate gap so that no electri cause short-circuit problems. In this regard, there is a limitation in achieving a high wiring density, that is, in reducing the size of the converter section.
  • SUMMARY THE INVENTION
  • Around To solve the problems described above, the present one Invention the task of a motor with an integrated converter for a To provide motor vehicle, which is capable of anti-vibration properties ensure and achieve the downsizing of the converter section.
  • Around achieve the above and other related goals the present invention sees a first motor with integrated Converter for a motor vehicle in front, which has a housing, a cylindrical motor section, the housed in the housing and an inverter circuit section attached to the case is to convert DC power to three-phase AC power and the provision of the converted AC power has the motor section, the converter circuit section Power switching elements, which respective branches of the three-phase converter circuit form a smoothing capacitor, which is between a pair of DC input terminals of the Three-phase converter circuit is connected to a control circuit to control the power switching elements, and a wiring section for connecting the power switching elements of the smoothing capacitor and the Has control circuit. According to the first motor with an integrated Inverter of the present invention, the wiring section includes one integrated busbar plate, which contains numerous busbars, which integral in a cast resin plate section are formed to ensure mutual electrical insulation. The Integrated track plate is on an outer surface of the cylindrical wall of the housing over the Gießharzplattenabschnitt attached. Furthermore, there are distal ends of the busbars from the cast resin plate section protrude, with respective electrode connections of the power switching elements, connections the smoothing capacitor, and predetermined connection portions of the control circuit. About that In addition, the integrated busbar plate is on an outer radial side the power switching elements attached and directly or via a cooling plate on the outer surface of the cylindrical wall of the housing attached. The integrated track plate extends in a tangential direction of the motor section, a predetermined one radial gap between them is maintained.
  • Corresponding the first motor with integrated converter of the present invention, are different circuit components with each other over the integrated busbar plate connected, which as a wiring section serves. The circuit components include e.g. the power switching elements, the one on the outer surface of the cylindrical wall of the housing attached smoothing capacitor, the control circuit mounted on a printed circuit board, and external Connector sections for connecting the internal components to a external DC power source, an external control device and the engine section.
  • The integrated track plate preferably contains numerous Busbars which are in a two-tier or double-tier Structure are arranged to create an effective crossing wiring structure to achieve. The bus bars are integral in the cast resin plate section molded to the electrical insulation between them or against ensure external links. The integrated track plate is on the outer surface of the cylindrical wall of the housing over the cast resin plate section attached.
  • The integrated busbar plate is over (i.e. on the radial outside) arranged the power switching elements, which directly or via the cooling plate (e.g. heat sink plate) on the outer surface of the attached cylindrical wall of the housing are to cover the power switching elements.
  • The Power switching elements are preferably independent switching elements which form the three-phase converter circuit, or can consist of integrated circuit modules, which a variety of switching elements or all (switching elements) as Hybrid package or as a monolithic integrated Integrated circuit (monolithic integrated circuit), formed his. A flywheel diode can be used in the three-phase converter circuit are considered as switching elements of the type with two connections and a transistor can be considered as a three-terminal type switching element.
  • The Motor described above with an integrated converter for a motor vehicle brings the following functions and effects.
  • First of all, the bus bar plate of the present invention serves as an intensive or concentrated wiring means for mutually connecting the above-described components of the converter section. The total number of components required can be reduced. The wiring work can be simplified. The high-density and high-current wiring system is implemented together or at once. Specifically, the wiring (components) of this invention exhibits one sufficient electrical insulation between the respective busbars is safe and free from the influence of the deformation of the busbars, which can be caused by vibrations of the vehicle. The gap between adjacent busbars can be significantly reduced.
  • Of the integrated busbar plate can also overlap with the power switching elements and arranged above it (around a two-tier or double-tier Structure). This arrangement is to reduce the wiring length or the distance as well as the wiring impedance. The radial size of the drive section can be reduced. This carries to reduce the size of the converter section.
  • moreover is the DC power source power rail (i.e. high DC power source power rail, Earth busbar) arranged above the power switching elements and can the high frequency switching noise emitted by the power switching elements adequate shield.
  • It also exists no need to change the wiring arrangement if the converter section is disassembled for repair.
  • moreover is the integrated track plate compared to individual Busbars heavy and rigid. The integrated track plate can on the housing over numerous Connection sections are attached. This improves durability wiring of the converter section against vibrations or shocks. The natural mechanical resonance of the integrated busbar plate is compared with the (resonance) of the respective busbars particularly small. It is possible the durability of the converter section against vibrations of a vehicle body or a rotary machine (such as a compressor), which driven by a motor section to improve significantly. In other words, the integrated busbar plate can be effective prevent the Connection sections of the respective busbars due to the mechanical resonance phenomenon Have losses.
  • Corresponding a preferred embodiment of the present invention is the integrated track plate between the power switching elements, which directly or via the cooling plate on the outer surface of the cylindrical wall of the housing are attached, and a printed circuit board, which on the outer radial side the power switching elements is arranged and in a tangential direction the motor section, arranged to receive the control circuit or equip. The integrated busbar plate is essentially to the circuit board parallel and overlapped with the power switching elements and the circuit board, wherein predetermined radial gap between them are observed.
  • Corresponding this arrangement, the control circuit on the circuit board is independent of the integrated busbar plate. This arrangement is advantageous in that the Low current components safely separated from high current components can be. In particular, the control circuit consists of numerous circuit elements, including a microcomputer that has a very low or weak current for intermittent control of the power switching elements of the Three-phase converter circuit can be operated. on the other hand becomes the integrated busbar plate for high-current wiring used. The printed circuit board is parallel to the integrated busbar plate arranged. With this arrangement it is possible to measure the size and weight of the integrated busbar plate to reduce, since the integrated Track plate only for high current components can be used. Furthermore, the circuit board form the integrated track plate and the power switching elements a three-tier or three-tier structure. This arrangement is effective to the wiring length or to reduce the distance. The radial size of the converter section can be reduced. About that can out distal ends of respective busbars which extend from the integrated busbar plate protrude, be bent slightly vertically and into the connection holes Printed circuit board inserted become. The electrical connection, i.e. vertical wiring between the power switching elements and the circuit board can easily realized by the busbars of the integrated busbar plate become.
  • As a modified embodiment Is it possible the printed circuit board on an opposite surface of the glue integrated busbar plate, on which no power switching elements are provided are. In this case, it is preferable that the connections of the electrical components, which are from another main surface of the PCB, opposite a mounting base surface protrude, are housed in a hole or opening, which in the cast resin plate section the integrated busbar plate is formed. This is for Realization of the downsizing of the converter section effective. Of further, the circuit board can be omitted if the circuit components the control circuit directly on the main surface of the integrated track plate are mounted. In this case, it is preferable to use a copper foil etching pattern on the surface the integrated busbar plate as the wiring layer of the Training control circuit.
  • Corresponding the preferred embodiment of the present invention, the cast resin plate portion is the integrated one Busbar plate with an outer frame section integrally molded from resin. The outer frame section is on the outer surface of the cylindrical wall of the housing attached to the power switching elements and the circuit board to surround, and the cast resin plate portion extends extending in the tangential direction of the motor section from an inner surface of the outer frame portion.
  • Corresponding With this arrangement, the integrated track plate can easily on the housing be attached. The mechanical strength or rigidity of the integrated track plate can be easily improved. The anti-vibration properties of the busbars can be improved become. It is also possible to prevent the Busbars have losses. The reliability of the connecting sections the respective busbars can be safely maintained.
  • Of further surrounds the outer frame section the entire periphery of the power switching elements and the printed circuit board and has the ability to protect them. The housing accordingly does not require an outer metal frame. The weight of the converter section can be reduced.
  • Corresponding the preferred embodiment the invention is an outer peripheral portion the printed circuit board is connected to a stepped surface of the outer frame section, which lower than an upper surface of the outer frame section is arranged and is an interior of the outer frame portion closed by a cover plate, which on the upper surface of the outer frame portion is attached. The circuit board can be easily installed. The Work of arranging or adjusting the connection holes of the printed circuit board to correspond Busbar connections, which protrude from the integrated track plate can be precise carried out become.
  • Corresponding the preferred embodiment of the present invention, a medium carrier wave, which are integral with the cast resin plate section or formed with the outer frame portion is in contact with a central part of the circuit board. The middle carrier wave repressed Vibration of the printed circuit board. The anti-vibration properties the circuit board can be further improved. Alternatively, it is possible to use one to provide different medium carrier waves, which from the middle part of the integrated track plate down towards the outer surface of the cylindrical wall of the housing stretches while an outer periphery the integrated track plate is carried by the outer frame portion becomes. This arrangement improves the mechanical strength or Rigidity of the integrated track plate.
  • Corresponding the preferred embodiment the present invention is a grounding rail, which as Low DC power line of the converter circuit section is used by the cast resin plate section or from the outer frame portion and is on the outer surface of the cylindrical wall of the housing attached. The ground bar of this arrangement brings the effect or the effect of cooling, Grounding and electromagnetic shielding. The wiring impedance on the ground line of the converter section becomes small. The loss and heat generation can be reduced. In that the grounding busbar far into the unused space of the integrated Busbar plate extends, it is possible from the power switching elements effectively shield emitted electromagnetic radiation noise. Furthermore, the widely used grounding bar can be used be used by the power switching elements or by the smoothing capacitor generated heat efficiently to the housing leave.
  • It is possible to provide a power source power rail that functions as a high DC line serves the converter circuit section that from the cast resin plate section or from the outer frame portion protrudes and on the outer surface of the cylindrical wall of the housing over a Insulating sheet is attached. The power source track this The arrangement brings with it the effect of cooling and increases the capacitance of the smoothing capacitor. A required capacity of the smoothing capacitor can be easily reduced with a simplified arrangement. Of the power source track can also be used, around that from the power switching elements or from the smoothing capacitor generated heat efficiently to the housing leave.
  • According to the preferred embodiment of the present invention, a ground rail, which is connected to a ground conductor of the printed circuit board which forms part of the converter circuit section, protrudes from the resin plate section or the outer frame section and is fixed to the outer surface of the cylindrical wall of the housing. The ground rail of this arrangement brings with it the effect of cooling, grounding and electromagnetic shielding. The circuit board is effectively cooled. The temperature rise of the control circuit, including a microcomputer and an integrated power source circuit mounted on the circuit board can be effectively suppressed. The wiring impedance of the ground rail can be reduced. The electromagnetic noise emitted from the circuit board to the outside or the electromagnetic noise transmitted from the outside to the circuit board can be effectively shielded. The loss and heat generation can be reduced.
  • It it is preferable that the Ground rail connected to an electromagnetic shield line which covers the power source line, that of the circuit the circuit board provides electrical power or with the Power source line is connected in parallel. This is effective to shield the electromagnetic radiation noise or the High-frequency noise voltage occurring in the power source line to suppress. Furthermore, it is preferable that the ground wire described above for many reasons so broad or nationwide as possible is formed on the circuit board. It is also preferable that the contact surface between the ground bar and the ground wiring conductor the circuit board as large as possible is trained.
  • Corresponding the preferred embodiment of the present invention are external power source connectors which with the power source power rail, which is called the high-DC power line serves the converter circuit section, integrally formed or connected, connected to external power source cables, and a Power connector section is integral with the outer frame section trained to surround the external power source terminals. The power connector section (i.e. an extended outer frame section, which surrounds the external power source connections of the motor section or protects) is integrally formed with the integrated bus bar plate and the outer frame portion. The total number of parts can be reduced. The external power source connections can be suitably protected become.
  • Corresponding the preferred embodiment of the present invention are external communication ports which as communication transmission lines serve between the control circuit and an external device intervene, connected with external communication cables and on Communication connector section is integral with the outer frame section trained to surround the external communication ports. The communication connector section is a frame section which integral with the integrated track plate and the outer frame section is designed to surround the external communication connections and protect. The total number of parts can be reduced. The external communication ports can be suitably to be protected.
  • The Integrated busbar plate described above can be easily manufactured become. The conductor rail pattern is e.g. first by press molding a circuit board according to a technology which one Guide frame technology for Manufacturing integrated circuits is similar, trained. The Track pattern is then molded with a resin by resin molding or by insert molding integrated. Subsequently become connecting rails (i.e. connecting sections) of the bus bar pattern cut or removed to leave numerous power rails allow.
  • The The present invention provides a second motor with an integrated one Converter for a motor vehicle, which has a housing, one housed in the housing cylindrical motor section, and an inverter circuit section attached to the housing to convert DC power into three-phase AC power and providing the converted AC power to the Motor section, the converter circuit section power switching elements, which form respective branches of a three-phase converter circuit between a pair of DC input terminals of the Three-phase converter circuit connected smoothing capacitor, a control circuit for controlling the power switching elements, and a large number of busbars, which is a wiring for connecting the power switching elements, of the smoothing capacitor and form the control circuit. According to the second engine With integrated motor of the present invention, the power switching elements and the smoothing capacitor directly or via a cooling plate an outer surface of the cylindrical wall of the housing attached. Circuit components which form the control circuit, are mounted on a printed circuit board, which is on a radial outer side the power switching elements is arranged, the busbars intervene between the circuit board and the power switching elements, and the power switching elements with the circuit board over the Busbars are connected.
  • The second motor with an integrated converter for a motor vehicle accordingly of the present invention one of the first motor described above with an integrated converter different embodiment, in that the Gießharzplattenabschnitt is omitted from the integrated busbar plate.
  • Corresponding the second motor with integrated converter of the present invention, can the housing as a heat sink for cooling the power switching elements and the smoothing capacitor serve, which during generate heat during operation, because these circuit components on the outer surface of the cylindrical wall of the housing are attached. The high-current busbars are located above the Power switching elements and overlap with these to form a two-tier or two-tier structure. The wiring length the conductor rails can be shortened become. The tracks can serve as electromagnetic shielding of the power switching elements. Furthermore, the printed circuit board is arranged above the busbars and overlaps yourself with these. The one for the converter circuit space can be reduced. In this case there is vertical wiring which is from the printed circuit board leads to the power switching elements required. The between Busbars located on them can be wired in this way provide easily.
  • The The present invention provides a third motor with an integrated one Converter for a motor vehicle in front, which has a housing, a cylindrical motor section, which in the housing and an inverter circuit section connected to the casing is attached to DC power into three-phase AC power convert and the converted AC power to the motor section to provide, the converter circuit section Power switching elements, which respective branches of a three-phase converter circuit form one between a pair of DC input terminals of the Three-phase converter circuit connected smoothing capacitor, a control circuit for controlling the power switching elements, and a large number of busbars, which is a wiring for connecting the power switching elements, the smoothing capacitor and form the control circuit. According to the third Integrated drive motor of the present invention the converter circuit section is housed in an enclosed space, which by a on an outer surface cylindrical wall of the housing attached outer frame section, one on an upper surface attached to the outer frame portion Cover plate, and the outer surface of the cylindrical Wall of the housing is defined, and the outer frame portion surrounds the connections of the Motor section, which emerges from the cylindrical wall of the housing extend.
  • Corresponding corresponding to the third motor with an integrated converter for a motor vehicle of the present invention, an accommodating case is made by the outer surface of the cylindrical wall of the housing, the outer frame section, which on the outer surface of the cylindrical wall of the housing is attached, and the cover plate, which on the outer frame portion attached, defined. The main lines of the engine section abut the outer frame portion in front. The connection between the main lines and the converter section is made simple. The main lines and their connecting sections are through the outer frame section protected. By filling the enclosed space with a resin or a gel, the electrical Insulation and the moisture resistance of the Wiring can be further improved.
  • The The present invention provides a fourth motor with an integrated one Converter for a motor vehicle, which has a housing, one housed in the housing cylindrical motor section, and an inverter circuit section, which on the housing is attached to DC power into three-phase AC power convert and provide the converted AC power to the motor section, the power converter circuit section, which respective branches of the three-phase converter circuit form, one between a pair of DC input terminals of the Three-phase converter circuit connected smoothing capacitor, a control circuit for controlling the power switching elements, and a large number of busbars, which is a wiring for connecting the power switching elements, of the smoothing capacitor and form the control circuit. According to the fourth Motor with integrated converter for a motor vehicle accordingly of the present invention, the converter circuit is in one enclosed space, which by an outer frame section, which on an outer surface of the cylindrical wall of the housing is attached, one attached to an upper surface of the outer frame portion Cover plate, and an outer surface of the cylindrical wall of the housing and the enclosed space for housing the converter circuit section filled with a resin is.
  • According to the fourth motor-integrated converter for a motor vehicle according to the present invention, a housing for accommodating the converter section through the outer frame portion, which is fixed on the outer surface of the cylindrical wall of the housing, is the cover plate, which is on the upper surface of the outer frame portion is fixed, and defines the outer surface of the cylindrical wall of the housing. This arrangement improves the electrical insulation, moisture resistance, and anti-vibration properties of the wiring and its connecting portions. Regarding the resin to be filled in the enclosed space, may a soft, gel-like resin or a hardened resin can be used.
  • Of the present invention further has an aim, a motor-driven one To provide a compressor with an integrated converter for a motor vehicle, which is a simplified cooling arrangement for one Has converter section and is capable of the converter section effective cooling and has a compact axial size, which when installed in a narrow and limited space of the automotive engine compartment is advantageous.
  • Around to accomplish the above and other related goals the present invention a first motor-driven compressor with integrated converter for a motor vehicle in front, which has a compressor section, the part a cooling circuit device forms a motor section that is integral with the compressor section is connected to drive the compressor section, a housing for housing the compressor section and the motor section, and an inverter circuit section which has a predetermined number of power switching elements to convert DC power into three-phase AC power and the provision of the converted AC power to the Has motor section. According to the first motorized Integrated compressor of the present invention the engine section is cooled by a low pressure coolant, and the power switching elements are separated or separate Formed transistors, each having a side surface of which electrode connections protrude, and a lower surface that is directly on an outer surface of the cylindrical wall of the housing is arranged on a part surrounding the motor section.
  • The individual transistors of the present invention are independent leads voltage transistor elements, each having a resin-coated one Contains semiconductor chip, which is built in plate form. The semiconductor chip contains e.g. an IGBT (i.e. insulated gate bipolar transistor = bipolar transistor with insulated gate) or a MOST (i.e. metal oxide semiconductor transistor = metal oxide semiconductor transistor), or a pair of these Kind of transistor or a flywheel diode. According to the present The individual transistors are further characterized by the invention in that they with the outer surface of the cylindrical wall of the housing Make direct contact, even if a resin plate or a thermal paste is between them.
  • Corresponding the first motor-driven compressor with an integrated converter The present invention is the cooling arrangement for an inverter section simple and the converter section is effectively cooled. The axial size is like that compact that the Device easily into a narrow or limited space of a vehicle engine compartment can be installed.
  • Corresponding the first motor-driven compressor with an integrated converter of the present invention, the converter section is on the outer surface of the cylindrical wall of the motor section attached. This arrangement enables the axial size of the motorized Reduce compressor with integrated converter for a motor vehicle.
  • Of Furthermore, the cylindrical wall of the motor section can be cooled by the low pressure coolant, which flows within the motor section are suitably cooled. The cylindrical wall of the motor section can be used as a heat sink Cool serve the converter section. A special heat sink for cooling the power switching elements the converter section is not necessary as this is directly on the cylindrical wall of the motor section are attached, which is continuous is kept at a low temperature level. The from the power switching elements generated heat is effectively dissipated to the cylindrical wall of the motor section. The cylindrical wall of the motor section has a high heat capacity. This improves the limit value (allowance limit) for short-term heat generation the power switching elements of the converter section clearly. Furthermore can the size or height of Converter section in the radial direction by the appropriate size of a omitted conventional Heatsink reduced become. The first motor-driven compressor with an integrated converter The present invention is thus easily narrow and limited Vehicle internal combustion engine compartment space can be installed.
  • According to the first motor-driven compressor with integrated converter of the present invention, moreover, a plurality of power switching elements, which form respective branches of the three-phase converter circuit, are packaged separately as individual transistors, which are arranged separately on the outer surface of the cylindrical wall of the housing. This arrangement brings about an improvement in the thermal and mechanical properties for the outer surface of the cylindrical wall section (ie, mounting base section) for mounting the converter section. The mounting base section for mounting respective individual transistors is particularly compact. The height (ie radial thickness) of the mounting base portion can be reduced to a smaller value. The heat transfer resistance is small. The power switching elements of the Converter section are cooled efficiently.
  • Corresponding a preferred embodiment of the present invention the outer surface of the cylindrical wall of the housing a mounting base portion with a flat mounting base surface that with a flat bottom surface of the individual transistors forms contact. The individual transistors are in screw holes, which are formed on the cylindrical wall of the housing, anchored. The screw holes extend perpendicular to the mounting base surface and are circumferentially towards a thicker wall area of the housing within the mounting base surface added.
  • Corresponding this embodiment, are respective individual transistors on the circumferentially offset region anchored within the mounting base section to which the cylindrical Wall of the housing is sufficiently thick. The structure of the mounting base section is compact and this is lightweight. The heat transfer resistance is on suppressed a lower value.
  • Corresponding the preferred embodiment of the present invention, the electrode terminals of respective individual transistors in the circumferential direction of a thinner one Wall area of the housing within the mounting base surface out. According to this arrangement, the height of the electrode terminals, which from the outer surface of the cylindrical wall of the housing assume to be suppressed to a low value. As a result, it is radial size of the converter section low. The downsizing of a motorized compressor with integrated converter can be implemented. The connecting sections of the electrode connections from respective individual transistors can be neat on the same level to be ordered.
  • Corresponding the preferred embodiment of the present invention, the individual transistors are on arranged in the same plane, which is formed by the mounting base surface is. This arrangement is for the orderly arrangement of the connecting sections of the electrode connections of respective individual transistors at the same level advantageous. It is possible, improve the workability in the wiring work and also to automate the wiring work.
  • Corresponding the preferred embodiment the present invention, a group of individual transistors with mutually different phases arranged in series in the axial direction. Two individual transistors with the same phase are juxtaposed arranged in the circumferential direction, the electrode connections one of the individual transistors, which the electrode connections of the opposed to another individual transistor, arranged and a Wiring area with a predetermined circumferential width of the above electrode terminals is between the two individual transistors, which is the same phase have provided.
  • This Arrangement is advantageous to connect high density wiring of the individual transistors that make up the three-phase converter circuit form to provide. The wiring length can be shortened.
  • Corresponding the preferred embodiment of the present invention, the mounting base surface of the Mounting base section on a stepped flat section, which by a predetermined amount in the radial direction compared to an adjacent flat area elevated is or protrudes in which the individual transistors are arranged are. The stepped flat portion corresponds to the wiring area. It is possible, the cylindrical wall of the housing at the limited area, which corresponds to the wiring area, to increase (increase), without interfering with the individual transistors and also without the height or to increase the protrusion of the converter section in the radial direction. The mechanical strength of the housing can be improved. This embodiment is preferred in the event that the cylindrical wall of a housing is partially cut or removed along a chord around a flat mounting base surface to leave that for the assembly of all of the individual transistors is sufficient without the radial height or Can be used to increase the thickness of the mounting base section. The provision of the stepped portion at a circumferential area, which to the Wiring area corresponds, compensates for the reduction the mechanical strength of the thinner wall area of the housing.
  • Corresponding the preferred embodiment In the present invention, the individual transistors are in one Space added, which is defined by an outer frame section is the one with the outer surface of the cylindrical wall of the housing Contact forms, and the space for housing the individual transistors is filled with a resin member.
  • If the three-phase converter circuit is formed in particular by numerous transistors, it goes without saying that the connections of respective transistors must be connected in a predetermined pattern. According to the above embodiment of the present invention, individual transistors are attached directly to the outer surface of the cylindrical wall of the metallic housing of the motor-driven compressor. The electrode terminals protrude from a side surface of each of the transistors and extend along the outer surface of the cylindrical wall of the housing. The electrode terminals and the wiring are necessarily located close to the outer surface of the cylindrical wall of the metallic case. The possibility of causing a surface discharge is accordingly relatively high.
  • Corresponding the embodiment described above of the present invention, the outer frame portion is which surrounds the respective individual transistors, therefore on the outer surface of the cylindrical wall of the housing attached. A cover plate is preferably on the top surface of the outer frame portion intended. The cover plate, the outer frame section and the outer surface of the cylindrical wall of the housing cooperatively define a closed space to the individual To surround transistors and wiring. The closed room is filled with a resin. The resin is liquefied or gel state, when it is injected into the enclosed space and later becomes natural or through heat treatment hardened.
  • Corresponding the arrangement described above occurs between the electrode connections or the wiring and the outer surface of the cylindrical Wall of the housing no surface discharge on. The enclosed space can be used to the circuit board, the busbar wiring and various electrical connection sections accommodate. The electrical insulation and anti-vibration properties these circuit components can be strong be improved. The outer frame section is preferably a resin made product. However, it is possible a metallic outer frame section insert which is integral with the cylindrical wall of the housing can be formed or connected by means of screws.
  • The To fill the chamber of the outer frame section with an electrically insulating material also diminishes a vibration energy, which the motor-driven compressor to the Printed circuit board, the wiring or those included in this room connections emits, and accordingly the reliability of the connecting sections improved.
  • Corresponding the preferred embodiment of the present invention, a resin insulating plate is on the outer surface of the cylindrical wall of the housing arranged at an area opposite the wiring area.
  • If the three-phase converter circuit in particular by numerous individual Transistors is formed, it goes without saying that the connections of the respective transistors connected in a predetermined pattern Need to become. According to the above embodiment of the invention, respective individual transistors are directly on the Outer surface of the cylindrical wall of the metallic casing of the motor-driven compressor attached. The electrode connections stand from a side surface each of the transistors protrude and extend along the outer surface of the cylindrical wall of the housing. The electrode connections and the wiring is necessarily close to the outer surface of the arranged cylindrical wall of the metallic housing. The possibility causing a surface discharge is accordingly relatively high.
  • Corresponding the embodiment described above of the present invention, the insulating plate is therefore on the Outer surface of the cylindrical wall of the housing at an area opposite to the wiring area where the electrode connections of the respective individual transistors and the associated busbars close are arranged together. The insulating plate is between the individual transistors and the outer surface of the cylindrical wall of the housing admitted. This arrangement enables it the distance or gap between the electrode terminals of the respective individual transistors or the associated busbars and the outer surface of the cylindrical wall of the housing to reduce. The total height the converter section can be reduced.
  • Corresponding the preferred embodiment of the present invention is a smoothing capacitor on one Provided circumferential end of the power switching elements, the wiring area on the opposite Page is arranged.
  • According to the embodiment of the present invention described above, the smoothing capacitor is arranged in particular adjacent to the group of individual transistors in the circumferential direction. Due to the requirements of the wiring work of the smoothing capacitor, the smoothing capacitor is inserted into an accommodation hole which extends perpendicular to the mounting base surface on which the individual transistors are arranged. In this case, the smoothing capacitor is offset circumferentially from the group of individual transistors and can be located deep in the thicker wall area of the cylindrical housing. As a result, it is possible to prevent the converter section from spreading laterally. The lateral width of the converter section is small. The DC power source terminal section is arranged in the same direction as the smoothing capacitor. The smoothing capacitor may be arranged between the three-phase converter circuit and the DC power source connection section. The smoothing capacitor absorbs high frequency components of the switching currents flowing in the three-phase converter circuit before they reach the DC power source terminal section. The total length of the DC power source wiring can be reduced. The wiring impedance is decreasing. The switching surge noise voltage also decreases.
  • The DC power source connection section is further with external cables connected. The connection space for the external cables is easy and to a sufficient extent secured.
  • Corresponding the preferred embodiment of the present invention is an AC output terminal section at another circumferential end of the power switching elements from the smoothing capacitor intended.
  • Corresponding the arrangement of this version can have a sufficient and deep space for the AC output terminal section be ensured. The axial width is also due to the Construction in sufficient measure ensured by the AC output terminal section wide from the smoothing capacitor or of the DC power source terminal section.
  • Corresponding the embodiment described above, the converter section is arranged on the outer surface of the motor section. With this arrangement it is possible disadvantageous caused by a compression chamber or the compressor section thermal influence too decrease, and it is also possible from the compressor section to reduce the disadvantageous vibration influence acting on the converter section. The Connection line between the converter section and the motor section can be shortened become. In order to further reduce the disadvantageous thermal influence it is preferable that the main connections the motor stator coils extend in an axial direction, which is opposite the compressor section and from the cylindrical wall of the housing be taken.
  • Around furthermore the ability for cooling the To improve converter section, it is preferable to use a coolant channel to provide in the cylindrical wall of the housing to low temperature and Low pressure refrigerant to allow it to be located in an area just below the converter section Flow section. The coolant channel is preferably a branched channel of a main coolant channel, which is the low pressure coolant transported to the engine section. It should also be provided that an evaporator returning low pressure refrigerant to the engine section Channel described above, which is exactly under the converter section is arranged to conduct. With this arrangement, the low pressure coolant, which has a lower temperature than the engine section are used to cool the converter section.
  • Of the present invention further has the aim of another motor-driven compressor with integrated converter for a motor vehicle to provide what excellent shock or impact resistance and has waterproofness.
  • Around to accomplish the above and other related goals the present invention with a second motor-driven compressor integrated converter for a motor vehicle in front, which a compressor section, which part a cooling circuit device forms a motor section, which with the compressor section for Drive the compressor section is integrally connected to a housing Including the compressor section and the motor section, an inverter circuit section a predetermined number of power switching elements for conversion from DC power to multi-phase AC power and supplying the converted AC power to the motor section; and a inverter case, which on an upper end portion of a cylindrical outer wall of the housing attached to house the inverter circuit section, having. A motor power connector is with a cable power connector of a power cable detachably connected, which electrical power to provides the converter circuit section. A motor communication connector is with a cable communication connector of a communication cable detachably connected, which is a communication path between the Converter circuit section and an external electronic device forms. There are also the motor power connector and the motor communication connector from an upper surface of the converter housing, which on the upper end portion of the outer cylindrical wall of the housing is attached.
  • According to the second motor-driven compressor with an integrated converter of the present invention, the motor power stand binder and the motor communication connector from the upper surface of the converter housing, which is fixed on the upper end portion of the outer cylindrical wall of the housing. According to this arrangement, the housing and the converter housing of the motor-driven compressor can prevent drops or splashes of rain water, which may contain liquefied salt or harmful components, from reaching the connectors during the operation of a vehicle. No liquid can enter the housing via the coupling section of the connector. The electrical insulation of the connectors can be easily and adequately maintained especially at connection portions between the connectors' connectors.
  • Self in the case when the vehicle is in a basin, a river, a Coast or stands or drives in comparable shallow water, moreover, it is possible, adequately maintain the electrical insulation of the connectors against water, because the connectors at the highest Point of the motor-driven compressor are arranged.
  • Corresponding a preferred embodiment of the present invention, has the inverter circuit section those on the outer cylindrical Wall of the housing attached power switching elements, one over the power switching elements arranged control circuit section, which contains a circuit board which electronic circuit elements for controlling the power switching elements are mounted, as well as busbars, which the motor power connector and the motor communication connector with the power switching elements or the control circuit section. The converter housing contains one metallic mounting base section, which is connected to the outer cylindrical Wall of the housing is integrally formed and opens upwards to the power switching elements to surround a resin frame portion attached to the mounting base portion is attached, and opens upward to the circuit board the control circuit section and a cover plate, which the top opening of the resin frame section closes. The engine power connector and the engine communication connector contain connection ports, which are formed by distal ends of the busbar and themselves extend vertically, and a resin body portion, which with the resin frame portion is integrally formed with the cable power connector and the cable communication connector to be coupled, which introduced in the vertical direction and be removed.
  • at In this arrangement, the connector terminals of the motor and the connector terminals of the Cable aligned in the vertical direction to a mutual sliding movement to allow in the vertical direction. This improves the anti-vibration properties the connector clearly.
  • Corresponding the motor-driven compressor with an integrated converter for a motor vehicle the connector connections are also exposed to strong vibrations or shocks. The vibrations or shocks work on the connector terminals one so this be bent. The carrier the connector terminals to a resin body section the connector is generally in the form of a cantilever. It therefore works great Bending force on the distal ends of the respective connector ports.
  • Around to simplify the structure and manufacturing process it is desirable that the resin frame section, which carries the busbars of the converter, integral with the motor power connector and the motor communication connector is formed and that the connector terminals through the distal ends of the busbars are formed. In view of the cost and the electrical resistance, they are electrical conductive members that form the busbars, but made of soft metallic Substances (e.g. copper or copper alloy). As a result, tilt the connector terminals to simply bend when exposed to vibrations or shocks are. This poses a serious problem for the communication connector because the communication connector uses thin connectors.
  • The inventors of the present invention have enthusiastically carried out research and development to solve the problem described above, and have deduced that vertical vibrations of the vehicle have the most serious influence on the connectors of the motor-driven compressor. When the vehicle is in operation, the vehicle body moves or vibrates in the vertical direction due to bumps or ripples in the road. Although some of the vertical vibrations are absorbed by shock absorbers, vertical vibrations usually occur especially when the vehicle is moved on a rough or uneven road. The vertical vibrations inherent in the vehicle are therefore transmitted to the engine power connector and the engine communication connector via an internal combustion engine block and the engine-driven compressor. As a result, the connector terminals vibrate in the vertical direction. If the vehicle wheel is enclosed in a large recess or in a deep bulge in the road, a strong reaction force acts on the connector connections, which acts in the vertical direction. This reaction force acts as a large bending force if the connector connections are perpendicular to this force are arranged.
  • Around to solve this problem, sets the second motor-driven compressor with an integrated converter the present invention, the arrangement such that the connector terminals extend or protrude in the vertical direction.
  • Corresponding In this arrangement, the connections of the motor power connector extend in the vertical direction and form with the connections of the cable power connector, which extends in the same direction, contact. The connections of the Motor communication connectors similarly extend vertically Direction and form with the connections of the cable communication connector, which extends in the same direction, contact. This Arrangement is advantageous in that even if a strong reaction force acts from the wheel, the connector connections this force as a compression force, which in their longitudinal direction acts, can record. In other words, there is essentially no bending force the respective connector connections, which in a cantilever type on the resin body portion on the proximal Ends are attached, a. The connector connections bend accordingly not and show no reduction in mechanical strength on. No short circuit occurs between adjacent connector terminals. This make it possible downsizing the connectors and reducing the size or thickness of the connectors, without the electrical contact state between the terminals of the Motor power (or communication) connector and the connectors of the Deteriorate cable performance (or communication) connector.
  • The The vertical direction described above contains or includes the absolute Vertical direction with a margin or tolerance of an angular range of ± 10 °.
  • Corresponding a preferred embodiment of the present invention the housing or the mounting base portion at least one protruding part, which from the resin frame portion in one to an axis of motor-driven compressor protrudes laterally in the vertical direction.
  • The The present invention further aims to provide another motorized one To provide a compressor with an integrated converter for a motor vehicle, which is able to shield electromagnetic noise, and excellent shock or has impact resistance and is also capable of that casing or to reduce the size of the compressor with an integrated converter and the axial length to reduce.
  • Around to accomplish the above and other related goals the present invention has a fourth motor-driven compressor integrated converter for a motor vehicle, which has a housing, one housed in the housing motor-driven compressor, and an inverter circuit section has which on the housing is attached to DC power in multi-phase AC power convert and the converted AC power to the motorized Provides compressor. The converter circuit section contains power switching elements, which respective branches form a multi-phase converter circuit, a smoothing capacitor, which is between a pair of DC input terminals of the Multi-phase converter circuit is connected to a control circuit Control the power switching elements, and a wiring section for connecting the power switching elements, the smoothing capacitor and the control circuit. An inverter case to house the inverter circuit section is formed by a metallic frame section, which the Converter circuit section surrounds and from an outer cylindrical surface of the housing protrudes a cover plate which has an upper opening of the Encloses the frame section, and a cylindrical wall of the housing. The power switching elements and the smoothing capacitor are arranged on a mounting base surface, which on the outer cylindrical surface of the housing is formed and surrounded by the frame portion. The wiring section contains one Busbar arrangement and a printed circuit board. The busbar arrangement contains numerous Busbars which are integrally molded in a cast resin plate section to ensure mutual electrical insulation. The Busbar assembly is on the outer cylindrical surface of the housing or the frame section above the cast resin plate section attached and on a radial outer side of the power switching elements arranged to be tangential to extend the motor-driven compressor. The circuit board is arranged between the busbar arrangement and the cover plate parallel to the busbar assembly for mounting the control circuit to extend.
  • According to the third motor-driven compressor with integrated converter of the present invention, the power switching elements and the smoothing capacitor are fixed on the mounting surface which is formed on the outer surface of the cylindrical wall of the housing. The waste heat generated by the power switching elements and the smoothing capacitor can be efficiently transferred to or released from the mounting surface because the mounting surface is configured precisely on the lower surfaces Chen of the power switching elements and the smoothing capacitor to fit.
  • The Wiring for the converter circuit section is roughly in high current wiring and a low-current wiring divided. The high-current wiring can be formed by a busbar arrangement which has numerous busbars contains the one with a cast resin plate section through resin insert molding are integrated. Both connections the respective busbars which protrude from the cast resin plate section, are with the electrode connections the power switching elements or connected to the terminals of the smoothing capacitor, or in the connection holes inserted the circuit board. The low current wiring for use as a controller is through realized a printed circuit board, which with numerous electronic Circuit elements equipped is. The busbar arrangement extends above the power switching elements. The circuit board extends above the busbar arrangement. The number of components can be minimized. The distance between the power switching elements and the busbar arrangement short. The power loss of the wiring is reduced.
  • The inverter case, which houses the converter circuit section is by the outer cylindrical surface of the housing of the motor-driven compressor, the frame section which of this outer cylindrical Surface protrudes, and the top plate, which is the upper opening of the frame portion closes educated. The number of components can be minimized. The required space for the converter circuit section can be reduced. That from the Inverter circuit section emits outward or outward electrical noise can be reduced. In this case, the converter circuit section into the converter housing in the order of the power switching elements, the busbar arrangement, and the printed circuit board. As described above is the wiring is integrated in roughly two sections. The installation of the Converter circuit section in the converter case is not complicated.
  • The Wiring arrangement is very simple as described above. The Power switching elements are directly on the outer cylindrical surface of the housing attached. Although the inverter case to accommodate the inverter circuit section and required to provide the electromagnetic shield protrusion of the converter housing in the radial direction can be reduced become. The device can be downsized.
  • Of further simplifies the use of the busbar arrangement Wiring work. Because the necessary wiring essentially in the busbar arrangement is the only necessary the cast resin plate section the busbar assembly on the frame portion of the outer cylindrical surface of the housing too Fasten. Furthermore, the electrical insulation can be ensured even if the gap between the busbars and the resin plate section is short.
  • A Source which is the largest electromagnetic Noise is also generated the power switching elements. The placement of the busbar assembly over the Power switching elements is effective to that of the power switching elements shield electromagnetic radiation emitted because of the busbar arrangement formed from many electrical DC potential wirings is. To improve the electromagnetic shielding effect is it is desirable that for the DC power lines Busbars are used as wide as possible, if these are punched out during the manufacturing process of the busbar arrangement become. This is just as effective to the one caused by the resistance Power loss of the busbars and the inductance decrease. Furthermore, reducing the inductance brings for the DC lines busbars used to reduce a switching noise voltage with itself and accordingly reduces the electromagnetic noise.
  • Corresponding a preferred embodiment of the present invention the busbar assembly a connector for communication or Power supply, which of the frame section or the cover plate protrudes. The connector contains a connector base portion which is integral with the resin plate portion the busbar arrangement is formed and via an opening in the cover plate penetrates outside and protrudes, as well as integrally formed with the busbars Connector connections which be carried by the connector base portion.
  • According to this arrangement, the connector base portion is previously attached to the resin plate portion of the bus bar assembly. This simplifies removing the power connections. Furthermore, the communication or control connector is attached to the cast resin plate portion of the busbar assembly. The total number of components is small. The connection work is easy. The communication control connector and the power connector can use the same connector base portion. The circuit board is preferably attached to the cast resin plate section.
  • The The busbar assembly described above can be easily manufactured become. The conductor rail pattern is e.g. first by press molding a circuit board according to one of the main frame manufacturing techniques for similar integrated circuits Technology trained. The track pattern is then with a resin integrated by resin molding or by insert molding. Then be Connection rails (i.e. connection sections) of the conductor rail patterns cut or removed so that numerous busbars remain.
  • The Power switching elements are preferably independent switching elements which form the three-phase converter circuit, or can by integrated circuit modules be formed, which a plurality or all of the switching elements as a hybrid package or as a monolithic integrated Circuit (monolithic integrated circuit) or as a bear chip package (Bear chip package) integrate. In the three-phase converter circuit can use a flywheel diode as a power switching element of the type two connections and a transistor is considered to be a three-terminal type power switching element become.
  • SHORT DESCRIPTION THE DRAWINGS
  • This and other objectives, features, aspects and advantages of the present Invention are based on the following detailed description of the present Invention, which in conjunction with the accompanying drawings you can read it.
  • It shows:
  • 1 an exploded perspective view showing a motor-driven compressor with an integrated converter according to a first embodiment of the present invention;
  • 2 FIG. 14 is a cross sectional view showing an inverter circuit section of the in 1 shown motor-driven compressor with an integrated converter along the radial direction of the compressor;
  • 3 14 is an exploded perspective view showing a plurality of MOS power transistor modules mounted on a mounting base surface of a motor case according to the first embodiment of the present invention;
  • 4 13 is a plan view showing the MOS power transistor modules mounted on the mounting base surface of the motor case according to the first embodiment of the present invention;
  • 5 a perspective view showing part of the numerous bus bars in an integrated bus bar plate according to the first embodiment of the present invention;
  • 6 a plan view showing a circuit board mounted on a motor-driven compressor with an integrated converter according to the first embodiment of the present invention;
  • 7 12 is a perspective view showing a motor-driven compressor with an integrated converter according to a second embodiment of the present invention;
  • 8th a rear view showing the motor-driven compressor with integrated converter according to the second embodiment of the present invention;
  • 9 an exploded perspective view of the motor-driven compressor with integrated converter according to the second embodiment of the present invention;
  • 10 a partial vertical view showing connector terminals of the motor-driven compressor with integrated converter according to the second embodiment of the present invention;
  • 11 a perspective view showing another motor-driven compressor with an integrated converter according to the second embodiment;
  • 12 is a rear view of the in 11 shown motor-driven compressor with integrated converter;
  • 13 a perspective view showing another motor-driven compressor with an integrated converter according to the second embodiment;
  • 14 a rear view of the in 13 shown motor-driven compressor with integrated converter;
  • 15 an exploded perspective view showing a motor-driven compressor with an integrated converter according to the third embodiment of the present invention;
  • 16 a perspective view which shows the busbar assembly to be installed in the motor-driven compressor with integrated converter according to the third embodiment of the present invention;
  • 17 a perspective view, which in the 16 shown busbar arrangement shows busbars to be formed;
  • 18 an exploded perspective view showing the bus bar assembly and the power switching elements to be assembled according to the third embodiment of the present invention; and
  • 19 a plan view showing the in 15 shown motor-driven compressor with integrated converter shows, although a cover plate is removed.
  • DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • First embodiment
  • On motor-driven compressor with integrated converter of a cooling circuit of a motor vehicle according to a first embodiment of the present invention will be made with reference to the accompanying drawings explained, although some of the components and lines are omitted.
  • 1 Fig. 14 is an exploded view showing the motor-driven compressor with integrated converter according to the first embodiment of the present invention.
  • 2 FIG. 12 is a cross-sectional view along the radial direction of the compressor, which includes an inverter circuit section of FIG 1 shown motor-driven compressor with integrated converter shows. 2 shows the converter circuit, which is attached to a housing of the motor-driven compressor. The in 2 The cooling circuit shown is not considered to be conventionally known.
  • 3 Fig. 4 is an exploded view showing a plurality of MOS power transistor modules 6 that on a mounting base surface 41 an engine housing 4 are mounted, shows.
  • 4 Fig. 3 is a plan view showing the MOS power transistor modules 6 which on the mounting base surface 41 of the motor housing 4 are mounted, shows.
  • 5 Fig. 10 is a view showing part of a plurality of bus bars in an integrated bus bar plate.
  • 6 is a top view of the in 1 shown motor-driven compressor with integrated converter.
  • (Overall configuration)
  • A compressor section 1 forms part of a cooling circuit device for a vehicle air conditioning system. A cylindrical motor section 2 drives the compressor section 1 on. A compressor is in a compressor housing 3 accommodated. An engine case 4 accommodates a three-phase synchronous motor. An inverter section 5 which serves as the converter circuit section of the present invention forms drive and control of the motor section 2 ,
  • The compressor housing 3 and the motor housing 4 which are opposite to each other in the axial direction of their rotary shafts (not shown) are coaxially connected by bolts. The rotating shaft of the motor section 2 is frictional with the rotating shaft of the compressor section 1 connected. The compressor section 1 and the engine section 2 together form a motor-driven compressor. Like in the 1 and 2 mounting base section shown above 40 is on an outer surface of the cylindrical motor housing 4 integrally formed. The top of the mounting base section 40 is in a flat surface extending in the horizontal direction, in particular along a tangential line or direction of the cylindrical motor section 2 configured to act as a mounting base surface 41 to serve.
  • The engine section 2 is introduced by a low pressure refrigerant, which is in an evaporator (not shown) or. ejected from it, kept at a low temperature. As in 6 shown, the motor housing 4 a low pressure coolant inlet 27 and the compressor housing 3 a high pressure coolant outlet 28 on. The low pressure coolant flows inside the engine case 4 and cools the motor housing 4 ,
  • The converter section 5 contains six MOS power transistor modules (ie power switching elements) 6 to form switching elements of the upper branch and switching elements of the lower branch of the respective phases of a three-phase converter circuit. The converter section 5 also contains a smoothing capacitor 7 , an integrated track plate and an outer frame section 8th , a printed circuit board 9 and a cover plate 10 , The converter section 5 converts power supplied by a battery (not known) into three-phase AC power. The converted three-phase AC power is applied to stator coils (not shown) in the motor section 2 provided.
  • For this purpose, main lines of the respective phases of the engine section 2 at connection points of the three MOS power transistor modules 6 connected, which serve as switching elements of the upper arm and to another three MOS transistor modules 6 , which serve as switching elements of the lower arm of the respective phases. The MOS power transistor modules 6 which serve as switching elements of the upper arm have main electrode terminals which are connected to a power source terminal described later. The MOS power transistor modules 6 which serve as switching elements of the lower arm have main electrode terminals which are connected to a ground terminal described later.
  • Any MOS power transistor module 6 , which is configured into a thick plate shape by resin molding, has three terminals protruding from its side surface. The three connections are an electrode-drain connection 61 , which serves as the main electrode connection, an electrode-source connection 62 , which serves as the main electrode connection, and an electrode gate connection 63 which serves as an electrode control terminal. The MOS power transistor module 6 has a through hole 64 which is provided close to another side surface opposite to the side surface on which the three connections described above are provided. Any MOS power transistor module 6 is on the motor housing 4 through a into the through hole 64 inserted fastener attached or fixed.
  • The MOS power transistor modules (ie, power switching elements) are formed by certain transistors, each having a side surface from which the electrode terminals protrude, such as a bottom surface, directly or through a radiator plate on an outer surface of a cylindrical wall of the motor housing 4 is attached.
  • The smoothing capacitor 7 , which is inserted between a power source terminal and a ground terminal of the three-phase converter circuit, absorbs high-frequency components of the switching current of the three-phase converter circuit.
  • The integrated track plate and the outer frame section 8th , which contain a plurality of bus bars that serve as wiring for the three-phase converter circuit, are on the outer surface of a motor connector portion 14 attached. The respective busbars are integrated by molding in the resin insert. The integrated track plate and the outer frame section 8th are used for the connection between respective MOS power transistor modules 6 , for the connection of each MOS power transistor module 6 with the circuit board 9 , for the connection of each MOS power transistor module 6 with the smoothing capacitor 7 , for the connection of each MOS power transistor module 6 with the DC power source terminal and the ground terminal, and for connection of each MOS power transistor module 6 used with an AC connector.
  • The control circuit, which is on the circuit board 9 is mounted, the function of each MOS power transistor module 6 connect or disconnect based on an external command, as well as a function of transmitting or reporting the activation condition of the motor section 2 to an external device. The control circuit contains a microcomputer with integrated circuit and various peripheral switching components which are connected via the printed circuit board.
  • This circuit arrangement and its operation of this type of converter section 5 are known and will not be explained further below. The converter section 5 has the following characteristics.
  • (Arrangement the converter section)
  • Respective MOS power transistor modules 6 are on the mounting base surface 41 the mounting base section 40 over a resin insulating plate 11 by screws 12 attached.
  • The MOS power transistor modules 6 are like in the 3 and 4 shown arranged side by side to form three rows in the axial direction and two rows in the circumferential direction. The side surfaces of the respective MOS power transistor modules 6 , from which the electrode connections described above protrude, face each other.
  • Three MOS power transistor modules 6 , which are arranged in series, together form the switching elements of the upper branch. The three remaining MOS power transistor modules 6 , which are also arranged in series, together form the switching elements of the lower branch. Among the MOS power transistor modules 6 , which form the switching elements of the upper branch, serves the MOS power module 6 , which is located at the axial end as a U-phase switching element. The MOS power transistor module located at the axial center 6 serves as a V-phase switching element. The MOS power transistor module located at the other axial end 6 serves as a W phase switching element. The MOS power transistor module located at one axial end also serves 6 , among the MOS power transistor mo dulen 6 , which form the switching elements of the lower branch, as a U-phase switching element. The MOS power transistor module located at the axial center 6 serves as a V-phase switching element. The MOS power transistor module located at the other axial end 6 serves as a W phase switching element.
  • A switching area W with a predetermined width in the circumferential direction is between the three MOS power transistor modules 6 , which form the switching elements of the upper branch, and the three MOS power transistor modules 6 , which form the switching elements of the lower branch, are provided. Two MOS power transistor modules 6 the same phase are arranged in such a way that a source terminal 62 of the MOS power transistor module 6 of the top branch and a drain connector 61 of the MOS power transistor module 6 of the lower branch are arranged in the same axial position. With this arrangement, the length of the bus bar required to connect these terminals to the AC output terminal section can be shortened.
  • The mounting base surface 41 the mounting base section 40 that is on the outer side of the cylindrical motor housing 4 is formed, has a stepped flat section 42 on which is compared to the adjacent flat area where the MOS power transistor modules 6 are arranged to be raised or protruded by a predetermined height in the radial direction. The graduated flat area 42 corresponds to the circuit range W. As in 2 shown is the thickness of the cylindrical wall of the motor housing 4 least at the circuit area W. The provision of the graded area 42 has the effect of strength and rigidity of the motor housing 4 to improve. Thickening of the cylindrical wall of the engine case 4 is achieved in the following way. Respective electrode connections of each MOS power transistor module 6 are at a predetermined height from the bottom surface of the MOS power transistor module 6 positioned. The resin insulation board 11 is on the entire surface of the mounting base section 40 , including the portion opposite to the circuit area W. Even if the distance between the electrode terminals of each MOS transistor module 6 and the motor housing 4 is reduced, a sufficient gap to prevent creeping discharge can be ensured.
  • The screws 12 are in the through holes 64 introduced which near the outer side surfaces of the MOS power transistors 6 are provided opposite the inner side surfaces on which the electrode connections described above are provided. The screws 12 are on the mounting base section 40 firmly anchored to the MOS power transistors 6 on the mounting base section 40 to fix. How out 2 can be seen, the thickness of the cylindrical wall of the motor housing increases 4 with increasing distance from the circuit area W to when this is in the to the mounting base surface 41 perpendicular direction is measured. The position of the through holes 64 is far from the switching range D. The screws 12 can in the cylindrical wall of the motor housing 4 be brought in correspondingly deep.
  • The smoothing capacitor 7 is in a capacitor housing hole 13 housed, which next to the MOS power transistors 6 is arranged in the circumferential direction. The capacitor placement hole 13 extends in the direction perpendicular to the base surface of the assembly. A pair of terminals of the smoothing capacitor 7 stands from the top surface of the smoothing capacitor 7 upwards. The capacitor placement hole 13 is further away from the circuit area W than the MOS power transistors 6 arranged. As described above, the thickness of the cylindrical wall of the motor housing 4 with increasing distance from the circuit area W larger when from the mounting base surface 41 measured. The cylindrical wall of the motor housing 4 therefore points in this area where the capacitor housing hole 13 is formed to have a sufficient thickness to form a deep space of the capacitor housing hole 13 provided. It is possible that the terminals of the smoothing capacitor protrude excessively 7 suppress in the vertical direction, and it is accordingly possible to increase the protrusion height of the inverter section 5 to reduce.
  • An engine connection section 14 is on the other peripheral side of the MOS power transistor module 6 , ie at the smoothing capacitor 7 opposite side, trained.
  • In the 2 shown motor connection section 14 contains a cup-shaped connection housing 15 , an attachment made of resin 16 , a connector cover made of resin 17 , and an AC outlet 18 , That on the other circumferential side of the mounting base section 40 arranged cup-shaped connection housing 15 stands from the outer surface of the cylindrical motor housing 4 out. The essay 16 closes an upper opening of the connection housing 15 , The connector cover 17 is on a higher side of the essay 16 arranged. The AC connection 18 is on the essay 16 attached. Although only one AC connection in the drawing 18 shown are a total of three AC connections 18 intended. Each of the AC connections 18 protrudes into one Feed line housing space S, which through the terminal housing 15 if it is defined by the essay 16 closed is. The AC connections 18 are each connected to three feed lines in the feed line accommodation space S which extend from the stator coils of the motor section 2 extend. The supply lines are from the inside of the motor housing 4 via a feed line hole 19 that in the cylindrical wall of the motor housing 4 is provided, led into the supply line housing space S.
  • The integrated track plate and the outer frame cut 8th consist of an integrated track plate 81 and an outer frame portion 82 , The connector cover described above 17 is integral as part of the outer frame portion 82 formed by cast resin.
  • The outer frame section 82 is like in 1 . 4 and 6 shown, built in a rectangular frame shape and is mainly on the mounting base surface 41 mounted and to the mounting base section 40 attached. The connector cover 17 is formed in a U-shaped structure and on the outer side surface of the outer frame portion 82 integrally formed to the AC connections 18 to surround. A power source connection 20 and a communication port 21 which on the other side surface of the outer frame portion 82 are arranged, are in the of the terminal cover 17 outgoing direction.
  • The integrated track plate 81 which over the MOS power transistor modules 6 is arranged, extends in the horizontal direction from the inner side surface of the outer frame portion 82 , The integrated track plate 81 is to the mounting base surface 41 parallel. The integrated track plate 81 contains numerous busbars that are arranged in two layers in the vertical direction and are used to power the MOS power transistor modules 6 , the circuit board 9 and the AC connections 18 connect to. The respective busbars have a cast resin plate section 83 integrally formed. A ground (-) connection 22 and a power source (+) connection 23 extend from the integrated track plate 81 and come across the power source connection 20 in front. In the power source connection 20 are the ground (-) connection 22 and the power sources (+) connection 23 connected to DC power source cables (not shown). The integrated track plate 81 has an earthing bar with an end section which is connected as a ground (-) connection 22 serves. The ground bar is with the power electrode connections 62 of the MOS power transistor modules 6 , which form the switching elements of the lower branch, with a negative electrode connection of the smoothing capacitor 7 , as well as with an earth circuit pattern of the circuit board 9 connected. The power sources (+) connection 23 is with the electrode drain connections 61 of the MOS power transistor modules 6 , which form the switching elements of the upper arm, with a positive electrode connection of the smoothing capacitor 7 , and a power source circuit pattern of the circuit board 9 connected.
  • Communication ports (not shown) extend from the integrated power rail plate 81 and bump into the communication port 21 in front. The three-phase AC connections 24 to 26 stand in a horizontal direction from the integrated track plate 81 out. The AC connections 24 to 26 form with the AC power connections 18 the engine section 2 in the connector cover 17 Contact. The connections made by the integrated track plate 81 horizontally in the outer frame section 82 advance, are bent in the high-low direction and with corresponding electrode connections of the MOS power transistor modules 6 connected in the circuit area W. In the drawing, X represents their connection area. Likewise, those in the outer frame area 82 from the integrated track plate 81 connections protruding upwards into the through holes 91 the circuit board 9 inserted and fixed there by soldering.
  • The outer peripheral portion of the circuit board 9 is on a graded surface 84 arranged which within the outer frame portion 82 is provided and is attached by screws. The circuit board 9 is above the integrated track plate 81 arranged with a predetermined gap and extends parallel to the integrated busbar plate 81 , The cast resin plate section 83 the integrated track plate 81 has a middle bearing shaft or support shaft 830 on which with a lower surface of the circuit board 9 forms contact at its horizontal center. The middle support shaft 830 has the function of vibrations of the circuit board 9 to suppress. The switching components C, including IC's (integrated circuits), are on the lower surface of the circuit board 9 assembled. According to this arrangement, that of the integrated busbar plate 81 upward projecting busbar connections, which are the through holes 91 the circuit board 9 go through or pass on the top surface of the circuit board 9 be soldered together with other switching components by jet soldering.
  • The cover plate 10 is on an upper surface 85 of the outer frame section 82 buildin Untitled. The inside of the outer frame section 82 is filled with a gel to improve moisture resistance and anti-vibration properties. Inside the junction box 17 for insulation protection of the AC connections 24 to 26 the integrated track plate 81 and the AC power connections 18 the engine section 2 a resin mold is provided.
  • Corresponding the embodiment described above the above-described gel and the above-described molded one Resin heated simultaneously or separately. However, it is possible Gel through the resin to replace.
  • (Fabrication sequence)
  • The following is the manufacturing sequence of the converter section 5 explained.
  • First, the integrated track plate, the outer frame section 8th and the circuit board 9 assembled by soldering and using screws. The MOS power transistor modules 6 are on the assembly base section 40 of the motor housing 4 arranged.
  • Next is the arrangement of the integrated busbar plate, the outer frame section 8th and the printed circuit board 9 on the motor housing 4 attached, and an adhesive tool is inserted from an upper opening of the assembly to the electrode terminals of the MOS power transistor modules 6 with the terminals of the smoothing capacitor 7 , the connections of the integrated busbar plate and the outer frame section 8th to connect, as well as the AC connections 24 to 26 the integrated track plate and the outer frame section 8th with the AC connections 18 the engine section 2 to bring in contact. Next is the interior of the outer frame section 82 filled with a gel and a liquefied resin in the junction box 17 injected. The cover plate 10 is on the top surface 85 of the outer frame section 82 attached. A heat treatment is then applied to harden the liquefied resin.
  • (effects the invention)
  • The motor-driven compressor with integrated converter for a vehicle according to the embodiment of the present described above Invention has the following functions and effects.
  • (1) The MOS power transistor modules 6 The drive section are directly on the outer flat surface of the cylindrical wall of the motor housing 4 attached, which is cooled by the low pressure gas. The MOS power transistor modules 6 are arranged in a predetermined matrix pattern. With this arrangement, it is possible to prevent the cooling structure of the converter section from being complicated. The inverter section can be adequately cooled. The axial length of the engine can be reduced and the internal stability of the engine in a vehicle can be improved accordingly. Furthermore, the cylindrical wall of the motor housing 4 as a heat sink for the MOS power transistor modules 6 be used. This enables a compact and lightweight converter section to be implemented and the thermal radiation resistance to be reduced.
  • (2) The mounting base section 40 is due to a flat mounting base surface 41 defines which is in the tangential direction of the motor section 2 and a cylindrical inner wall of the motor housing 4 extends. The thickness of the mounting base section 40 changes continuously with increasing circumferential distance. The screw holes 64 into which the screws 12 to be inserted around the MOS power transistor modules 6 to attach are provided on a portion at which the thickness of the mounting base portion 40 is sufficiently large. This arrangement is advantageous to prevent the size and weight of the mounting base portion 40 increases, as well as to reduce the heat transfer resistance. It becomes possible to assemble the base section 40 to connect to a lower portion of respective individual transistors.
  • (3) Electrode connections from each MOS power transistor module 6 protrude in the direction of the circuit area W, that is, the area between three MOS power transistor modules 6 , which form the switching elements of the upper branch and a further three MOS transistor modules 6 , which form the switching elements of the lower branch is intervening. This is beneficial to the mounting base section 40 to downsize. Especially when two MOS power transistor modules 6 the thickness (ie radial size) of the mounting base portion may oppose each other in the circumferential direction 40 be reduced. The overall size of the motor-driven compressor with an integrated converter can be reduced. Furthermore, it is possible to arrange the connection sections of the electrode connections of the respective individual transistors on the same flat plane.
  • (4) The respective MOS power transistor modules 6 are on the flat mounting base surface 40 attached. It is therefore easy to connect the connection portions of the electrode terminals of the respective MOS power transistor modules 6 on the to arrange the same flat level. The processability in the wire or line connection work can be improved and the wiring can be automated.
  • (5) The MOS power transistor modules 6 different phases are arranged in series in the axial direction. Two MOS power transistor modules 6 the same phase face each other in the circumferential direction, with their electrode connections facing each other in the circumferential direction. The circuit area W for connection to the busbars is provided for the electrode connections, which of the opposing MOS power transistor modules 6 protrude. The circuit area W is usually used for the MOS power transistor modules 6 used, which are arranged in an opposite relationship (relationship) in the circumferential direction. The one for the converter section 5 required space can be reduced. The wire length of the busbars can be shortened.
  • (6) The middle area of the mounting base surface 41 which is located just below the circuit area W is called a stepped portion 42 compared to the adjacent area in which the MOS power transistor modules 6 are raised by a predetermined height in the radial direction or arranged above. This is effective around the height of the converter section 5 to keep low. Forming the graduated area 42 has the effect of improving the strength or rigidity of the engine case 4 in the area where the thickness of the cylindrical wall is the smallest.
  • (7) The MOS power transistor modules 6 , the integrated track plate 81 , the circuit board 9 and the smoothing capacitor 7 are housed in a space defined by the outer flat surface of the cylindrical wall of the motor housing 4 , the outer frame section 82 and the top plate 10 is defined, which is filled with the gel-like resin. The moisture resistance of the switching components can be improved. High-density wiring can be implemented. Furthermore, the vibrations of the circuit board 9 and the integrated track plate 81 be adequately reduced.
  • (8) The resin insulating plate 11 is on the outer flat surface of the cylindrical wall of the motor housing 4 , including the area opposite to the circuit area W. In this arrangement, the MOS power transistor modules are 6 , the electrode connections and the busbars as close as possible to the outer flat surface of the cylindrical wall of the motor housing 4 arranged. The total height of the converter section is therefore possible 5 to keep low.
  • (9) The smoothing capacitor 7 is in the accommodation hole 13 housed, which on a peripheral side of the MOS power transistor modules 6 is arranged far from the circuit area W to in to the mounting base surface 41 to extend perpendicular direction. The thickness of the mounting base section 40 is perpendicular to the mounting base surface 41 measured at the area where the accommodation hole 13 is sufficiently large. The capacitor placement hole 13 is therefore of sufficient depth. As a result, the smoothing capacitor 7 through the motor housing 4 sufficiently cooled, which is kept in a low temperature condition. The height of the terminals of the smoothing capacitor 7 can be set to a value closer to the height of the integrated track plate 81 lies. The wire length of the smoothing capacitor can be shortened. Furthermore, the height of the converter section 5 be kept low. In other words, the smoothing capacitor is adjacent to or adjacent to the assembly of the MOS power transistor modules 6 arranged in the circumferential direction. The smoothing capacitor connections 7 extend perpendicular to the mounting base surface 41 and stand in by the cylindrical wall of the motor housing 4 outgoing direction. With this arrangement, it is possible to use the smoothing capacitor 7 perpendicular to the mounting base surface 41 and deep in the motor housing 4 to arrange. The converter section can be downsized. Furthermore, the smoothing capacitor 7 when the DC power source section in the same direction as the smoothing capacitor 7 is arranged to be arranged between the three-phase converter circuit and the DC power source section. The total length of the DC power source wiring connecting them can be shortened. The wiring inductance decreases. The switching surge noise voltage also decreases.
  • (10) Furthermore, the AC output terminals are the motor section 2 on the other peripheral side of the MOS power transistor modules 6 arranged, ie on the other side of the MOS power transistor modules 6 opposite the smoothing capacitor 7 , The smoothing capacitor 7 does not interfere with the AC output connections of the motor section 2 on. The AC section of the motor section 2 can be arranged in a large room. Like the capacitor placement hole 13 , is the motor connection section 14 deep enough to connect the AC section of the motor section 2 accommodate.
  • (11) The integrated track plate 81 . which contains numerous resin molded busbars is above the MOS power transistor modules 6 intended. The integrated track plate 81 is on the outer radial side of the MOS power transistor modules 6 arranged. This arrangement enables the high-density layout of the busbars to be realized without taking into account the influence of vibrations caused by the motor-operated compressor and the deformation of the busbars in the event of a collision. The converter section 5 can be downsized. Furthermore, the work of positioning each bus bar at a predetermined position can be accomplished at one time. The wiring work becomes easy. Furthermore, the direct current rails, which are located above the MOS power transistor modules 6 extend that from the MOS power transistor modules 6 shield the electromagnetic switching noise emitted.
  • (12) The busbar plate integrated on the radially outer side 81 provided circuit board 9 extends parallel to the integrated busbar plate 81 , This arrangement is advantageous to the wiring effort of the integrated busbar 81 to reduce. The integrated track plate 81 becomes compact and lightweight in structure. The circuit board 9 (ie low-current wiring), the integrated power rail plate 81 (ie high current wiring) and the MOS power transistor modules 6 are stacked to form a three-tier or three-layer structure. The wiring length or the distance can be reduced and the converter area becomes compact. The three-tier or three-layer structure requires vertical wiring from the circuit board 9 to the MOS power transistor modules 6 , The integrated track plate 81 can easily provide such vertical wiring by bending one end of a bus bar up and also bending the other end down. The wiring structure is not complicated. The outer frame section 82 the integrated track plate and the outer frame section 8th form the power source terminal section that surrounds the DC power source terminals. The total number of parts required can be reduced.
  • (13) The outer frame section 82 which is the MOS power transistor modules 6 and the circuit board 9 surrounds is with the integrated track plate 81 molded integrally with resin. The outer periphery of the integrated track plate 81 is on the inner surface of the outer frame portion 82 continuously attached. The outer frame section 82 is capable of the circuit board 9 spaced from the integrated track plate 81 to hold securely and is also able to power the MOS power transistor modules 6 and the printed circuit board 9 protect mechanically. Because the integrated track plate 81 also integral with the outer frame portion 82 is formed, the integrated busbar plate 81 excellent anti-vibration properties as well as mechanical strength, which are resistant to vibrations caused by the motor-operated compressor or to an acceleration force in the event of a collision of the vehicle.
  • (14) The printed circuit board 9 is on the stepped surface of the outer frame portion 82 attached. The cover plate 10 is on the top surface 85 of the outer frame section 82 attached. The installation of the printed circuit board 9 is very simple. The work of positioning or adjusting the connection holes of the circuit board 9 on the corresponding busbar connections, which are from the integrated busbar plate 81 protruding can be done accurately.
  • (15) The middle support shaft 830 which are integral with the cast resin plate portion 83 is formed with the lower surface of the circuit board 9 Contact. The middle support shaft 830 suppresses vibrations of the printed circuit board 9 , The anti-vibration properties of the circuit board 9 can also be improved.
  • (16) Among numerous busbars of the integrated busbar plate 81 , is the grounding rail, which serves as the low-DC line of the three-phase converter circuit on the outer surface of the cylindrical wall of the motor housing 4 attached. Cooling the MOS power transistor modules 6 can be realized to a sufficient extent. The ground wiring of the three-phase converter circuit can be shortened. The electromagnetic shielding effect for the MOS power transistor modules 6 can also be improved.
  • (17) Among numerous busbars of the integrated busbar plate 81 , forms the power source bus bar, which serves as the high-DC line of the three-phase converter circuit, with the outer surface of the cylindrical wall of the motor housing 4 over the resin insulating plate 11 Contact. With this arrangement, a required capacitance of the smoothing capacitor can be reduced. The smoothing capacitor 7 takes on compact dimensions. The ground bus bar and the power source bus bar overlap with a predetermined gap in the thickness direction of the cast resin plate portion 83 , This has similar effects.
  • (18) The outer frame section 82 the in integrated busbar plate and the outer frame section 8th forms the power source connector section that surrounds the DC power source connectors. The total number of parts required can be reduced.
  • (19) The outer frame section 82 the integrated track plate and the outer frame section 8th form the communication port section that surrounds the distal ends of the communication bus bars that serve as communication ports. The total number of parts required can be reduced.
  • (20) The outer frame section 82 the integrated track plate and the outer frame section 8th form the motor connection section 14 that surrounds the AC output terminals. The total number of parts required can be reduced.
  • (21) The interior of the outer frame portion 82 is filled with a resin. This improves the electrical insulation, the moisture resistance, and the anti-vibration properties of the various common sections, and the wiring can be improved. Regarding the resin used in this case, it is possible to use a soft gel-like resin or a hardened resin.
  • Second embodiment
  • A motor-driven compressor with an integrated converter for a motor vehicle according to a second embodiment of the present invention will be described below with reference to FIG 7 to 10 described.
  • 7 Fig. 14 is a perspective view showing the motor-driven compressor with integrated converter according to the second embodiment. 8th is a rear view of the in 7 shown motor-driven compressor with integrated converter. 9 is an exploded perspective view of the in 7 shown motor-driven compressor with integrated converter.
  • (Overall configuration)
  • A compressor section c forms part of a cooling circuit device for a vehicle air conditioning system. A compressor housing 201 contains or houses a compressor section c. A cylindrical motor section m drives the compressor section c. An engine case 202 contains the motor section m, which is a three-phase synchronous motor. An engine control section 203 serving as the converter circuit section of the present invention controls and drives the motor section m.
  • The compressor housing 201 and the motor housing 202 which face each other in the axial direction of their rotary shafts (not shown) are coaxial by means of clamping bolts 213 connected. The rotary shaft of the motor section m is non-positively connected to the rotary shaft of the compressor section c. The compressor section c and the motor section m together form a motor-driven compressor. A mounting base section 204 , which overhangs or protrudes in the right and left directions, is integral on an outer surface of the cylindrical motor housing 202 educated. The mounting base section 204 which is at the top of the motor housing 202 is arranged is integral with the motor housing 202 formed by die-cast aluminum. The mounting base section 204 is constructed in a flat square or rectangular box shape to serve as a mounting base portion of an inverter case. The top of the mounting base section 204 is built up in a flat surface, which extends in the horizontal direction, in particular along a tangential line or in the direction of the cylindrical motor section m, in order to serve as a mounting base surface. The engine case 202 is fixed to an engine block (not shown) by means of locking bolts, which go into the through holes 205 to 207 be inserted, attached.
  • The converter circuit section 203 is housed in the inverter case, which is composed of the above-described mounting base portion 204, a resin frame portion 208 that on the mounting base surface of the mounting base section 204 is arranged, and a cover plate 209 which is the upper opening of the resin frame portion 208 covered, exists. An engine power connection 210 and an engine communication port 211 which is on the upper surface of the resin frame portion 208 are provided, extend vertically. The engine power exclusion 210 is used to supply electrical power to the converter circuit section 203 provide. The motor communication connection 211 provides a communication path for communication between the converter circuit section 203 and to enable an external electronic device. The resin frame section 208 is on the mounting base section 204 by means of screws 212 attached. The cover plate 209 attached to the resin frame section 208 is glued by adhesive, closes the upper opening of the resin frame portion 208 hermetically. The converter circuit section 203 is housed in this closed room.
  • 9 shows the converter circuit section 203 in more detail.
  • The converter circuit section 203 contains six MOS power transistor modules (ie, power switching elements) 231 to form switching elements of the upper branch and switching elements of the lower branch of the respective phases of a three-phase converter circuit. The converter circuit section 203 further includes a smoothing capacitor (not shown), a control circuit section 232 for controlling the switching of the respective MOS power transistor modules 231 , The wiring including numerous busbars 232 and 234 is integral with the resin frame portion 308 made by insert molding.
  • Any MOS power transistor module 231 is on the mounting base section 204 with an insulating film f which is arranged in between. Output terminals (ie, main AC electrode terminals) from respective MOS power transistor modules 231 are connected to stator coils (not shown) of the motor section m via output cables (not shown). Input terminals (ie, main DC electrode terminals) of respective MOS power transistor modules 231 are with the connection terminals in the motor power connection 210 connected via the busbars described above. The control terminals and the sense terminals of the respective MOS power transistor modules 231 are with the control circuit section 232 connected.
  • The control circuit section 232 is formed by numerous electronic circuit elements, which are mounted on a printed circuit board. 9 shows only the circuit board without showing the electronic circuit elements. The circuit board is on the resin frame section 208 connected by screws. The connection terminals of the respective MOS power transistor modules 231 and that of the resin frame section 208 protruding busbars are inserted into the through holes (not shown), which are open on the printed circuit board, and soldered there.
  • A resin body section 2110 of the motor communication connection 211 and a resin body portion 2100 the motor power connection 210 are integral with a resin frame portion 208 educated. The connections of the motor communication connector 211 are through end sections of the power rails 234 educated.
  • 10 Fig. 12 is a vertical view showing the motor communication connector 211 partially shows.
  • The motor communication connector 211 has connections as described above 2111 on through end sections of the busbars 234 are formed. The motor communication connection 211 is with a cable communication connector 220 coupled. The cable communication connector 220 has connections 2201 on, which with the corresponding connections of the motor communication connector 211 make independent contact. According to this embodiment, each port is 2201 built in a rectangular housing to a corresponding connector 2111 , which is built in a rectangular rod. The cable communication connector 220 is lowered and with the motor communication connector 211 coupled. The connections 2111 of the motor communication connector 211 are in the connectors 2201 inserted. Similarly, a cable power connector (not shown) is lowered and with the motor power connector 210 coupled.
  • The The arrangement described above has the following effects.
  • The first thing is the motor power connector 210 and the motor communication connector 211 from an upper surface of the resin frame portion (ie, converter case) which is on the upper end portion of the outer cylindrical wall of the motor case 202 attached, protrudes upwards. According to this arrangement, the housing and the converter housing of the motor-driven compressor can prevent rainwater drops or splashes, which may contain liquefied salt or harmful components, from reaching the connectors during the operation of a vehicle. No liquid can penetrate into the interior of the housing via the coupling section of the connector. The electrical insulation of the connector can be easily and adequately maintained especially at connection portions between the terminals and the connectors.
  • It is also possible to insulate the connectors electrically 210 and 211 , even if the vehicle stands or drives in a pool, a river, a coast or in comparatively shallow water, to maintain it adequately against the water, since the connector 210 and 211 are arranged at the highest point of the motor-driven compressor.
  • The connections also extend 2111 of the motor communication connector 211 and the connectors 2201 the cable communication connector 2200 , as in 10 shown in the vertical direction. This arrangement is advantageous in order to prevent the terminals from being bent or broken due to vehicle vibrations mainly acting on the terminals in the vertical direction.
  • The connections 2111 and 2201 are loosely coped with a certain distance between them pelt. If forces or vibrations act on these connections in the lateral direction, the connections deform 2111 and 2201 elastic together or individually. The opposite connections 2111 and 2201 can, for example, deform elastically with two axes of rotation x and y. Or the opposite connections 2111 and 2201 can independently deform with the cantilever at their axes of rotation x and y. If the connections 2111 and 2201 are arranged in the horizontal direction, the connections 2111 and 2201 in this case directly exposed to the vibrational forces that act in the vertical direction while the vehicle is traveling. The connections 2111 and 2201 can be bent or broken.
  • According to the terminal arrangements of the second embodiment of the present invention described above, the terminals extend 2111 and 2201 on the other hand, in the vertical direction and slide along their contact surfaces without substantially absorbing the vibrational forces when they are exposed to the vibrational forces acting in the vertical direction. The connections 2111 and 2201 can accordingly be formed from thin links. The motor communication connection 2111 and the cable communication port 220 can be reduced in size.
  • (Various Modifications of the second embodiment)
  • 11a Fig. 12 is a perspective view showing another motor-driven compressor with an integrated converter according to the second embodiment. 12 is a rear view of the motor-driven compressor with an integrated converter, as in 11 shown.
  • According to the in 11 and 12 Motor-driven compressor shown with an integrated converter is an aluminum rib 2400 provided to be laterally or horizontally on a side surface of the mounting base portion 204 to extend in the forward direction of the vehicle. This arrangement brings with it the effect of the converter circuit section 203 Protect safely in the event of a car accident.
  • 13a Fig. 12 is a perspective view showing another motor-driven compressor with an integrated converter according to the second embodiment. 14 is a rear view of the as in 13 shown motor-driven compressor with integrated converter.
  • According to the in 13 and 14 shown motor-driven compressor with integrated converter, are four projecting sections 2500 arranged in series at predetermined intervals. Like the rib described above 2400 bring the above sections 2500 the effect with it, the converter circuit section 203 Protect safely in the event of a car accident.
  • The rib described above 2400 and the preceding sections 2500 can on the motor housing 202 be provided.
  • According to the embodiment described above, the motor-driven compressor is arranged in front of the internal combustion engine. However, it is possible to arrange the motor-driven compressor on the rear side of the internal combustion engine. In this case, the rib described above 2400 and the previous section 2500 right hand or left hand of the engine compartment, so that the converter circuit section 203 can be protected in the event of a car accident.
  • Third embodiment
  • A motor-driven compressor with an integrated cooling circuit for a vehicle according to a third embodiment of the present invention is described with reference to the accompanying drawings, although some of the components and pipes are omitted. 15 Fig. 14 is an exploded perspective view showing the motor-driven compressor with integrated converter according to the third embodiment of the present invention. 16 Fig. 12 is a perspective view showing a bus bar assembly to be included in the motor-driven compressor with integrated converter according to the third embodiment of the present invention. 17 FIG. 12 is a perspective view showing bus bars that are inserted into the in FIG 16 shown busbar assembly is to be molded. 18 Fig. 3 is an exploded perspective view showing the bus bar assembly and power switching elements to be assembled together. 19 is a plan view showing the in 15 shown motor-driven compressor with integrated converter shows, although a cover plate and a circuit board are removed.
  • (Overall configuration)
  • A compressor section 301 forms part of a cooling circuit arrangement for a vehicle air conditioning system. A cylindrical motor section 302 drives the compressor section 301 on. A compressor housing 303 takes up a compressor. An engine case 304 accommodates a three-phase synchronous motor. An inverter circuit section 305 controls and monitors the motor section 302 , A frame section 341 , which is integral with the Mo goal cage 304 is used as a housing of the converter circuit section 305 , The compressor housing 303 , the motor housing 304 and the frame section 343 are integrally formed. The compressor housing 303 and the motor housing 304 , which are opposite to each other in the axial direction of their rotary shafts (not shown), are connected coaxially by means of through screws or bolts. The rotating shaft of the motor section 302 is with the rotating shaft of the compressor section 301 non-positively connected. The compressor section 301 and the engine section 302 cooperatively form a motor-driven compressor of the present invention.
  • The engine section 302 is maintained at a low temperature by a low pressure coolant which is expelled or introduced into an evaporator (not shown). The engine case 304 has a low pressure coolant inlet opening 321 on. The compressor housing 303 has a low pressure coolant outlet opening 322 (Referring to 19 ) on.
  • The low pressure coolant flows inside the engine case 304 and cools the motor housing 304 , An outer surface of a cylindrical wall of the engine case 304 is in a flat bottom section 342 of an inverter case of the present invention. A frame section 341 surrounds the bottom section 342 , Two flat or flat mounting base surfaces 343 are on the bottom section 342 educated.
  • The converter circuit section 305 contains six IGBT (ie insulated gate bipolar transistor = bipolar transistor with insulated gate) modules 306 which serve as power switching elements of the present invention to form switching elements of the upper branch and switching elements of the lower branch of the respective phases of a three-phase converter circuit. A heat sink 307 , which has insulating properties, is between the respective IGBT modules 306 and the mounting base surface 343 arranged. Also includes the converter circuit section 305 a smoothing capacitor 312 , a busbar arrangement 308 , a printed circuit board 309 , electronic mounting base controls, and a cover plate 310 , The converter circuit section 305 converts DC power provided by a battery (not known) into three-phase AC power. The converted three-phase AC power is applied to stator coils (not shown) in the motor section 302 provided. The cover plate 310 , the frame section 341 and the bottom section 342 cooperatively form the converter housing to accommodate the converter circuit section 305 ,
  • For this purpose, main lines of the respective phases of the engine section 302 to connecting sections of the three IGBT modules 306 connected to serve as switching elements of the upper branch and three further IGBT modules 306 to serve as switching elements of the lower branch of the respective phases. The IGBT modules 306 , which serve as switching elements of the upper branch, have main electrode terminals which are connected to a power source terminal of a power source connector 382 are connected. The IGBT modules 306 which serve as switching elements of the lower branch have main electrode terminals which are connected to a ground terminal of the power source connector 382 are connected.
  • Every IGBT module 306 , which is built up in thick plate form by resin molding, has three connections protruding from its side surface. As in 17 As shown, the three terminals are a drain electrode terminal serving as a main electrode terminal, a source electrode terminal serving as a main electrode terminal, and a gate electrode terminal serving as an electrode control terminal. Every IGBT module 306 has a through hole provided near another side surface opposite to the side surface on which the three terminals described above are provided. Every IGBT module 306 is on the motor housing 304 by means of a screw 360 braced or attached, which is inserted into the through hole.
  • The IGBT modules 306 , ie the power switching elements, are arranged in a predetermined matrix pattern, with three rows in the axial direction and two rows in the circumferential direction of the motor section 302 are arranged. The inside surfaces of the opposite IGBT modules 306 , from which the electrode connections described above protrude, lie in the tangential direction of the motor section 302 across from.
  • Three IGBT modules 306 , which are aligned on one side of the circumferential direction, cooperatively form the switching elements of the upper branch. Other IGBT modules 306 , which are aligned on the other side in the circumferential direction, cooperatively form the switching elements of the lower branch. Under a group of three IGBT modules 306 serves the IGBT module 306 , which is arranged at one axial end, as a U-phase switching element. The IGBT module 306 , which is arranged at the axial center, serves as a V-phase switching element. The IGBT module 306 , which is arranged at the other axial end, serves as a W-phase switching element.
  • The smoothing capacitor 312 , which is arranged between a power source terminal and a ground terminal of the three-phase converter circuit, absorbs high-frequency components of the circuit current of the three-phase converter circuit. The smoothing capacitor 312 is at a perimeter end of these IGBT modules 306 arranged and forms with the outer surface of the cylindrical wall of the motor housing 304 Contact.
  • The mounting base surface 343 is built to fit exactly into the floor surfaces of the IGBT modules 306 and the smoothing capacitor 312 to fit. The IGBT modules 306 and the smoothing capacitor 312 generated heat can thus be effectively transferred or to the mounting base surface 343 be delivered.
  • The busbar arrangement 308 , which numerous busbars 383 receives, which serve as wiring for the three-phase converter circuit, is on the bottom portion 342 attached. The busbar arrangement 308 becomes the connection between the respective IGBT modules 306 , to connect any IGBT module 306 with the smoothing capacitor 312 , for connecting every IGBT module 306 with the circuit board 309 , to connect the IGBT module 306 with the power source connector and with the respective AC connectors or with other connectors installed and for connection between the circuit board 309 and communication connections of an external communication connector 381 used. The busbar arrangement 308 is through numerous power rails 383 formed, which are integrated by insert molding with a cast resin plate section. The power source connector 382 and the communication connector 381 are on one side of the busbar assembly 308 intended. The communication connector 381 is used for communication between the circuit board 309 and external devices. The power source connector 382 and the communication connector 381 penetrate through an opening of the cover plate 310 project outward or project outward and extend vertically from the converter circuit section 305 , The busbar assembly 308 is above the IGBT modules 306 arranged and extends in the horizontal direction. Each connector includes a connector base portion which is integral with the resin plate portion of the bus bar assembly 308 is formed and via an opening in the cover plate 310 penetrates to the outside or protrudes. The connector terminals are integrally formed with the bus bars and carried by the connector base portion.
  • The circuit board 309 contains a control circuit. The control circuit has a function, each IGBT module 306 based on an external command and a function of transmitting or notifying the activation status of the motor section 302 connect to or separate from an external device. The control circuit contains an integrated microcomputer circuit and various peripheral switching elements which are connected via the printed circuit board. The circuit board 309 which of the busbar arrangement 308 is spaced at a predetermined distance in the radial direction, extends in the horizontal direction. The cover plate 310 is on the frame section 341 by means of a screw 311 attached.
  • The switching arrangement and its operation of this type of converter circuit section 305 are known and are therefore not explained further.
  • (Assembly sequence)
  • The following is the assembly sequence of the converter circuit section 305 explained.
  • First, the insulating plate 307 on the mounting base surface 343 spread. The IGBT modules 306 (ie power switching elements) are over the insulating plate 307 on the motor housing 304 by means of screws 360 attached. The busbar arrangement 308 is in the frame section 341 accommodated. Then the connections of the respective IGBT modules 306 with the busbars of the busbar arrangement 308 welded. Then the circuit board 309 on the cast resin plate section of the busbar assembly 308 attached. The cover plate 310 is with the frame section 341 firmly glued.
  • Even though the invention in detail has been described and shown is the foregoing description illustrative in all its aspects and not restrictive. It is therefore evident that numerous others Modifications and variations can be designed without to depart from the scope of the invention.

Claims (45)

  1. Motor with an integrated converter for a motor vehicle, comprising: a housing ( 4 ); a cylindrical motor section ( 2 ), which in the housing ( 4 ) is included; and an inverter circuit section attached to the housing ( 5 ) to convert DC power to three-phase AC power and to supply the converted three-phase AC power to the motor section ( 2 ); characterized in that the converter circuit section ( 5 ) has: power switching elements ( 6 ), which form respective branches of a three-phase converter circuit; a smoothing capacitor connected between a pair of DC input terminals of the three-phase converter circuit ( 7 ); a control circuit for controlling the power switching elements ( 6 ) and a wiring section ( 8th ) for connecting the power switching elements ( 6 ), the smoothing capacitor ( 7 ) and the control circuit, the wiring section being an integrated busbar plate ( 81 ) which has numerous in a cast resin plate section ( 83 ) contains integrally molded busbars to ensure mutual electrical insulation, and wherein the integrated busbar plate ( 81 ) on the outer surface of the cylindrical wall of the housing ( 4 ) via the cast resin plate section ( 83 ) and distal ends of the cast resin plate portion ( 83 ) projecting busbars with respective electrode connections of the power switching elements ( 6 ), the terminals of the smoothing capacitor ( 7 ), and fixed connecting parts of the control circuit are connected, the integrated busbar plate ( 81 ) on a radially outer side of the power switching elements ( 6 ), which directly or via a cooling plate on the outer surface of the cylindrical wall of the housing ( 4 ) are attached, is arranged, and the integrated busbar plate ( 81 ) in a tangential direction of the motor section ( 2 ) with a predetermined radial gap maintained between them.
  2. Motor with integrated converter for a motor vehicle according to claim 1, wherein the integrated busbar plate ( 81 ) between the directly or above the cooling plate on the outer surface of the cylindrical wall of the housing ( 4 ) attached power switching elements ( 6 ) and one on the radially outer side of the power switching elements ( 6 ) arranged circuit board is arranged, and in a tangential direction of the motor section ( 2 ) for mounting the control circuit, and the integrated busbar plate ( 81 ) essentially parallel to the circuit board ( 9 ), and with the power switching elements ( 6 ) and the printed circuit board ( 9 ) overlapped with predetermined radial gaps adhered to between.
  3. Motor with an integrated converter for a motor vehicle according to claim 1 or claim 2, wherein the cast resin plate portion ( 83 ) of the integrated track plate ( 81 ) with an outer frame section ( 32 ) is molded integrally with resin, the outer frame portion ( 82 ) on the outer surface of the cylindrical wall of the housing ( 4 ) is attached to the power switching elements ( 6 ) and the printed circuit board ( 9 ) and the cast resin plate section ( 83 ) in the tangential direction of the motor section ( 2 ) from an inner surface of the outer frame portion ( 82 ) extends.
  4. Motor with integrated converter for a motor vehicle according to claim 3, wherein an outer peripheral portion of the circuit board ( 9 ) with a graduated surface ( 84 ) of the outer frame section ( 82 ), which is lower than an upper surface ( 85 ) of the outer frame section ( 82 ) is arranged, connected, and an interior of the outer frame portion ( 82 ) by a cover plate ( 10 ) which is on the top surface ( 85 ) of the outer frame section ( 82 ) is attached.
  5. Motor with integrated converter for a motor vehicle according to claim 4, wherein a central carrier shaft ( 830 ), which with the cast resin plate section ( 83 ) or with the outer frame section ( 82 ) is integrally formed with a central portion of the circuit board ( 9 ) Forms contact.
  6. Motor with integrated converter for a motor vehicle according to claim 4, wherein a ground bus bar, which acts as a low DC line of the converter circuit section ( 5 ) serves from the cast resin plate section ( 83 ) or from the outer frame section ( 82 ) protrudes and on the outer surface of the cylindrical wall of the housing ( 4 ) is attached.
  7. Motor with integrated converter for a motor vehicle according to claim 3, wherein a grounding bus bar, which is connected to a grounding conductor of the printed circuit board ( 9 ) which part of the converter circuit section ( 5 ) is connected, from the cast resin plate section ( 83 ) or the outer frame section ( 82 ) protrudes and on the outer surface of the cylindrical wall of the housing ( 4 ) is attached.
  8. Motor with integrated converter for a motor vehicle according to claim 1 or claim 2, wherein external power source connections ( 24 - 26 ), which are connected or integrally formed with a power source busbar, which, as a high-DC line, the converter circuit section ( 5 ) with external power source cables ( 18 ) and a service connector section ( 14 ) with the outer frame section ( 82 ) is integrally formed around the external power source terminals ( 24 - 26 ) to surround.
  9. A motor-integrated converter motor according to claim 1 or claim 2, wherein external communication ports serving as communication transmission lines that intervene between the control circuit and an external device are connected to external communication cables, and a communication connector section ( 21 ) with the outer frame section ( 82 ) integrally formed is to surround the external communication ports.
  10. Motor with an integrated converter for a motor vehicle, comprising: a housing ( 4 ); a cylindrical motor section ( 2 ), which in the housing ( 4 ) is included; and an inverter circuit section ( 5 ) to convert DC power to three-phase AC power and to supply the converted three-phase AC power to the motor section ( 2 ) which is attached to the housing; characterized in that the converter circuit section ( 5 ) has: power switching elements ( 6 ), which form respective branches of the three-phase converter circuit; a smoothing capacitor ( 7 ) connected between a pair of input terminals of the three-phase converter circuit; a control circuit for controlling the power switching elements ( 6 ); and a multiplicity of busbars which provide wiring for connecting the power switching elements ( 6 ), the smoothing capacitor ( 7 ) and the control circuit, the power switching elements ( 6 ) and the smoothing capacitor ( 7 ) directly or via a cooling plate on the outer surface of the cylindrical wall of the housing ( 4 ) are attached, circuit components (C), which form the control circuit, on a printed circuit board ( 9 ) on a radially outer side of the power switching elements ( 6 ) are arranged, the busbars between the printed circuit board ( 9 ) and the power switching elements ( 6 ) intervene, and the power switching elements ( 6 ) between the circuit board ( 9 ) are connected via the busbars.
  11. Motor with an integrated converter for a motor vehicle, comprising: a housing ( 4 ); a cylindrical motor section ( 2 ), which in the housing ( 4 ) is included; and an inverter circuit section ( 5 ) for converting DC power into three-phase AC power and providing the converted three-phase AC power to the motor section ( 2 ) which is attached to the housing; characterized in that the converter circuit section ( 5 ) has: power switching elements ( 6 ), which form respective branches of the three-phase converter circuit; a smoothing capacitor ( 7 ) connected between a pair of input terminals of the three-phase converter circuit; a control circuit for controlling the power switching elements ( 6 ); and a multiplicity of busbars which provide wiring for connecting the power switching elements ( 6 ), the smoothing capacitor ( 7 ) and the control circuit, the converter circuit section ( 5 ) in a closed space, which is separated by an outer frame section ( 82 ), which on an outer surface of the cylindrical wall of the housing ( 4 ) is attached, a cover plate ( 10 ), which on an upper surface ( 85 ) of the outer frame section ( 82 ) is attached, and the outer surface of the cylindrical wall of the housing ( 4 ) is defined and the outer frame section ( 82 ) Motor section connections ( 2 ) which extends from the cylindrical wall of the housing ( 4 ) extend from.
  12. Motor with an integrated converter for a motor vehicle, comprising: a housing ( 4 ); a cylindrical motor section ( 2 ), which in the housing ( 4 ) is included; and an inverter circuit section ( 5 ) for converting DC power into three-phase AC power and providing the converted three-phase AC power to the motor section ( 2 ) which is attached to the housing; characterized in that the converter circuit section ( 5 ) has: power switching elements ( 6 ), which form respective branches of the three-phase converter circuit; a smoothing capacitor ( 7 ) connected between a pair of input terminals of the three-phase converter circuit; a control circuit for controlling the power switching elements ( 6 ); and a multiplicity of busbars which provide wiring for connecting the power switching elements ( 6 ), the smoothing capacitor ( 7 ) and the control circuit, the converter circuit section ( 5 ) in a closed space, which is separated by an outer frame section ( 82 ), which on an outer surface of the cylindrical wall of the housing ( 4 ) is attached, a cover plate ( 10 ), which on an upper surface ( 85 ) of the outer frame section ( 82 ) and the outer surface of the cylindrical wall of the housing ( 4 ), is defined and the outer frame section ( 82 ) Motor section connections ( 2 ) which extends from the cylindrical wall of the housing ( 4 ) extend from, and the closed space for receiving the converter circuit section is filled with a resin.
  13. Motor-driven compressor with an integrated converter for a motor vehicle, comprising: a compressor section ( 1 ), which forms part of a cooling circuit device; a motor section ( 2 ), which with the compressor section ( 1 ) to drive the compressor section ( 1 ) is integrally connected; a housing ( 3 . 4 ) to accommodate the compressor section ( 1 ) and the motor section ( 2 ); and an inverter circuit section ( 5 ) with a defined number of power switching elements ( 6 ) to convert DC power to three-phase AC power and to supply the converted AC power to the motor section ( 2 ); where the motor section ( 2 ) is cooled by a low-pressure coolant, characterized in that the power switching elements ( 6 ) are formed by individual transistors, each of which has a lateral surface, of which electrode connections ( 61 - 63 ) and a bottom surface that is directly on an outer surface of a cylindrical wall of the housing ( 4 ) the motor section ( 2 ) surrounding section is arranged.
  14. Motor-driven compressor with integrated converter for a motor vehicle according to claim 13, wherein the outer surface of the cylindrical wall of the housing ( 4 ) a mounting base section ( 40 ) with a flat mounting base surface ( 41 ) which has a flat lower surface of the individual transistors ( 6 ) is in contact, and the individual transistors in screw holes ( 64 ) which are anchored on the cylindrical wall of the housing ( 4 ) are formed, the screw holes are perpendicular to the mounting base surface ( 41 ) extend and in the circumferential direction towards a thicker wall area of the housing ( 4 ) within the mounting base surface ( 41 ) are offset.
  15. Motor-driven compressor with integrated converter for a motor vehicle according to claim 14, wherein the electrode connections ( 61 - 63 ) of the individual transistors ( 6 ) in the circumferential direction towards a thinner wall area of the housing ( 4 ) within the mounting base surface ( 41 ) protrude.
  16. Motor-driven compressor with integrated converter for a motor vehicle according to claim 15, wherein the individual transistors ( 6 ) are arranged on the same level as that through the mounting base surface ( 41 ) formed level.
  17. Motor-driven compressor with integrated converter for a motor vehicle according to claim 16, wherein a group of individual transistors ( 6 ) are arranged in series with mutually different phases in the axial direction, two individual transistors ( 6 ) with the same phase are arranged next to one another in the circumferential direction, the electrode connections ( 61 - 63 ) one of the individual transistors ( 6 ) which the electrode connections ( 61 - 63 ) one of the other individual transistors ( 6 ) and a wiring area (W) with a specified circumferential width of the projecting electrode connections ( 61 - 63 ) between the two individual transistors ( 6 ) is provided with the same phase.
  18. Motor-driven compressor with integrated converter for a motor vehicle according to claim 17, wherein the mounting base surface ( 41 ) of the mounting base section ( 40 ) a stepped flat section ( 42 ), which is raised or protrudes by a fixed height in the radial direction compared to an adjacent flat area in which the individual transistors ( 6 ) is arranged, and the stepped flat section ( 42 ) corresponds to the wiring area (W).
  19. Motor-driven compressor with integrated converter for a motor vehicle according to claim 17, wherein the individual transistors ( 6 ) are accommodated in a room which is defined by an outer frame section ( 82 ) defined with the outer surface of the cylindrical wall of the housing ( 4 ) Forms contact and the space for receiving the individual transistors ( 6 ) is filled with a resin part.
  20. Motor-driven compressor with integrated converter for a motor vehicle according to claim 17, wherein a resin insulating plate ( 11 ) on the outer surface of the cylindrical wall of the housing ( 4 ) is arranged on an area opposite the wiring area (W).
  21. Motor-driven compressor with integrated converter for a motor vehicle according to claim 17, wherein a smoothing capacitor ( 7 ) at a peripheral end of the power switching elements ( 6 ) is provided and the wiring area (W) is arranged on the opposite side.
  22. A motor-driven compressor with an integrated converter for a motor vehicle according to claim 21, wherein an AC output terminal section ( 14 ) at another peripheral end of the power switching elements ( 6 ) far from the smoothing capacitor ( 7 ) is provided.
  23. Motor-driven compressor with an integrated converter for a motor vehicle, comprising: a compressor section (c) which forms part of a cooling circuit device; a motor section (m) which is integrally connected to the compressor section (c) for driving the compressor section (c); a housing ( 201 . 202 ) to accommodate the compressor section (c) and the motor section (m); and an inverter circuit section ( 203 ) with a defined number of power switching elements ( 231 ) for converting direct current power into multiphase alternating current power and for supplying the converted alternating current power to the motor section (m), characterized in that a converter housing ( 204 ; 208 . 209 ) on an upper end portion of an outer cylindrical wall of the housing ( 202 ) to accommodate the converter circuit section ( 203 ) is attached, a motor power connector ( 210 ) is detachably connected to a cable power connector of a power cable which supplies electrical power to the converter circuit section ( 203 ) feeds; and a motor communication connector ( 211 ) is detachably connected to a cable communication connector of a communication cable, which connects a communication path between the converter circuit section ( 203 ) and an external electronic device, the motor power connector ( 210 ) and the motor communication connector ( 211 ) from an upper surface of the converter housing ( 204 . 208 . 209 ), which on an upper end portion of the outer cylindrical wall of the housing ( 202 ) is attached, protrude upwards.
  24. Motor-driven compressor with an integrated converter for a motor vehicle according to claim 23, wherein the converter circuit section ( 203 ) has: the power switching elements ( 231 ) which are mounted on the outer cylindrical wall of the housing, a control circuit section ( 232 ), which over the Lesitungsschaltelemente ( 231 ) is arranged and contains a printed circuit board on which electronic circuit elements for controlling the power switching elements ( 231 ) are mounted, and busbars ( 233 . 234 ), which the motor power connector ( 210 ) and the motor communication connector ( 211 ) with the power switching elements ( 231 ) or the control circuit section ( 232 ), the converter housing has a metallic mounting base section ( 204 ), which is integrally formed with the outer cylindrical wall of the housing and opens upwards to the power switching elements ( 231 ) to surround a resin frame section ( 208 ) which on the mounting base section ( 204 ) is attached and opens upwards; around the PCB of the control circuit section ( 322 ) and a cover plate ( 209 ) covering the upper opening of the resin frame section ( 208 ) closes, and the motor power connector ( 210 ) and the motor communication connector ( 211 ) Connection ports ( 2111 ), which are formed by distal ends of the bus bars and extend vertically, and a resin body portion ( 2110 ) which is connected to the resin frame section ( 208 ) is integrally formed to be coupled to the cable power connector and the cable communication connector which is inserted and removed in the vertical direction.
  25. A motor-driven compressor with an integrated converter for a motor vehicle according to claim 24, wherein the housing ( 201 . 202 ) or the mounting base section ( 204 ) at least one protruding part ( 2400 . 2500 ), which is laterally from the resin frame portion ( 208 ) protrudes in a direction perpendicular to the axis of the motor-driven compressor.
  26. Motor-driven compressor with integrated converter for a motor vehicle, with a housing ( 303 . 304 ), a motor-driven compressor ( 301 ), which in the housing ( 303 . 304 ) and an inverter circuit section ( 305 ), which is attached to the housing to convert DC power to multi-phase AC power and the converted AC power to the motor-driven compressor ( 301 ), characterized in that the converter circuit section ( 305 ) Power switching elements ( 306 ), which form respective branches of a multiphase converter circuit, a smoothing capacitor ( 312 ), which is connected between a pair of DC input terminals of the multi-phase converter circuit, a control circuit for controlling the power switching elements ( 306 ), and a wiring section for connecting the power switching elements 306 ), the smoothing capacitor ( 312 ) and the control circuit, a converter housing for receiving the converter circuit section ( 305 ) through a metallic frame section ( 341 ), which surrounds the converter circuit section and protrudes from an outer cylindrical surface of the housing, a cover plate ( 310 ), which closes an upper opening of the frame section, and a cylindrical wall of the housing is formed, the power switching elements ( 306 ) and the smoothing capacitor ( 312 ) on a mounting surface ( 343 ), which is formed on the outer cylindrical surface of the housing and through the frame portion ( 341 ) is arranged, the wiring section is a busbar arrangement ( 308 ) and a printed circuit board ( 309 ), the busbar arrangement ( 308 ) numerous busbars ( 383 ), which are integrally molded in a cast resin plate section to ensure mutual electrical insulation, and the busbar arrangement ( 308 ) on the outer cylindrical surface of the housing or on the frame section above the resin plate portion is fixed and arranged on a radial outer side of the power switching elements to extend in a tangential direction of the motor-driven compressor, and the printed circuit board ( 309 ) between the busbar arrangement ( 308 ) and the cover plate ( 310 ) is arranged to be parallel to the busbar arrangement ( 308 ) to extend the control circuit.
  27. Motor-driven compressor with integrated converter for a motor vehicle according to claim 26, wherein the busbar arrangement ( 308 ) has a connector which extends from the frame portion ( 341 ) or the cover plate ( 310 ) for communication or power supply, the connector has a connector base portion integral with the resin plate portion of the bus bar assembly ( 308 ) is formed and via an opening in the cover plate ( 310 ) protrudes and protrudes outward, and has connector terminals carried integrally with the bus bars and through the connector base portion.
  28. Arrangement for mounting a converter circuit, which is used to control a motor of a compressor, wherein a converter circuit section ( 5 ) in a housing ( 8th ) is housed and the housing ( 8th ) on a mounting base section ( 40 ) the compressor is attached.
  29. A mounting arrangement for a converter circuit according to claim 28, wherein the converter circuit section ( 5 ) a power switching element ( 6 ) for controlling the power supply to the motor, and a heat radiation surface of the power switching element ( 6 ) is thermally connected to a coolant introduced into the compressor via a heat radiation member.
  30. Mounting arrangement for a converter circuit according to claim 28, wherein the housing ( 8th ) houses metallic bus bars embedded therein, and the bus bars provide an electrical path for the converter circuit section ( 5 ) provide.
  31. Mounting arrangement for a converter circuit according to claim 30, wherein the busbars with electrodes, connections and connecting parts of the electrical components ( 6 . 7 . 9 ) connected to the converter circuit section ( 5 ) form.
  32. Mounting arrangement for a converter circuit according to claim 28, wherein the housing ( 8th ) accommodates metallic busbars embedded therein, and the busbars form an electrical path between a first circuit section with a power switching element ( 6 ) and a second circuit section with electronic control devices which are arranged in parallel to one another.
  33. Mounting arrangement for a converter circuit according to claim 29, wherein the housing ( 8th ) houses metallic bus bars embedded therein, and distal ends of the bus bars from a surface of the housing ( 8th ) protrude.
  34. Mounting arrangement for a converter circuit according to claim 29, wherein the power switching element ( 6 ) a surface on which electrical connection electrodes are collectively arranged and has another surface serving as a heat radiation surface.
  35. Mounting arrangement for a converter circuit after The claim 30, wherein the bus bars are made of copper or a copper alloy are made.
  36. Method for assembling an inverter circuit which is used to control a motor of a compressor and has the following steps: arranging an inverter circuit section ( 5 ) with a power switching element ( 6 ) in order in a housing ( 8th ) to be housed, arranging a heat radiation surface of the power switching element ( 6 ) in order to be thermally connected to a coolant introduced into the compressor via a heat radiation member and fixing the housing ( 8th ) on the mounting base section ( 40 ) of the compressor.
  37. Installation procedure for a converter circuit according to Claim 36, further comprising the steps of: Preßausformen a circuit board in busbars of a predetermined pattern, and Integrate the busbars with a resin by molding.
  38. 36. The method of assembling a converter circuit according to claim 36, further comprising the steps of: inserting a protruding end of the bus bar through the housing 81 ) is not exposed in a through hole ( 91 ) a printed circuit board ( 9 ), and attaching the projecting end of the bus bar to a connection part of the circuit board ( 9 ) by soldering.
  39. Compressor, which is equipped with a motor and a converter circuit for controlling the motor, a housing ( 8th ), in which an inverter circuit section ( 5 ) housed is on a mounting base section ( 40 ) the compressor is attached.
  40. A compressor according to claim 39, wherein the converter circuit section ( 5 ) a power switching element ( 6 ) for controlling the power supply of the motor, and a heat radiation surface of the power switching element ( 6 ) is thermally connected to a coolant introduced into the compressor via a heat radiation member.
  41. A compressor according to claim 40, wherein in the housing ( 8th ) embedded metallic busbars are housed, and the busbars provide an electrical path for the converter circuit section ( 5 ) provide.
  42. 42. The compressor according to claim 41, wherein the busbars with electrodes, connections and connecting parts of electrical components ( 6 . 7 . 9 ) connected to the converter circuit section ( 5 ) form.
  43. A compressor according to claim 40, wherein in the housing ( 8th ) embedded metallic busbars are housed, and the busbars have an electrical path between a first circuit section with a power switching element ( 6 ) and a second circuit section with electronic control devices which are arranged in parallel to one another.
  44. 41. The compressor of claim 40, wherein the housing ( 8th ) houses metallic bus bars embedded therein and distal ends of the bus bars from a surface of the housing ( 8th ) project.
  45. A compressor according to claim 40, wherein the power switching element ( 6 ) has a surface on which electrical connection electrodes are collectively arranged and another surface which serves as a heat radiation surface.
DE20320643U 2002-04-26 2003-04-24 2002JP127299egrated motor for driving air conditioner of automotive vehicle, has bus-bar integrated plate set at radial outer side of modules to extend to tangential direction of motor, in which gap is formed between plate and motor Expired - Lifetime DE20320643U1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP2002127310A JP3760887B2 (en) 2002-04-26 2002-04-26 Inverter integrated motor for vehicles
JP2002127299A JP3786356B2 (en) 2002-04-26 2002-04-26 Inverter-integrated electric compressor for vehicles
JP2002127310 2002-04-26
JP2002127299 2002-04-26
JP2002329764A JP3802477B2 (en) 2002-11-13 2002-11-13 Inverter-mounted electric compressor for vehicles
JP2002329764 2002-11-13
JP2002357255 2002-12-09
JP2002357255A JP2004190525A (en) 2002-12-09 2002-12-09 Vehicular motor-driven compressor
EP03009368A EP1363026A3 (en) 2002-04-26 2003-04-24 Invertor integrated motor for an automotive vehicle

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DE20320643U1 true DE20320643U1 (en) 2004-12-23

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DE20320643U Expired - Lifetime DE20320643U1 (en) 2002-04-26 2003-04-24 2002JP127299egrated motor for driving air conditioner of automotive vehicle, has bus-bar integrated plate set at radial outer side of modules to extend to tangential direction of motor, in which gap is formed between plate and motor

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EP2058925A1 (en) * 2007-02-01 2009-05-13 Mitsubishi Heavy Industries, Ltd. Bus-bar connecting structure, and inverter-integrated type electric compressor
EP2535587A1 (en) * 2010-02-10 2012-12-19 Mitsubishi Heavy Industries, Ltd. Inverter-integrated electric compressor
EP2323243A3 (en) * 2009-11-13 2013-05-29 LG Electronics, Inc. Power module and vehicle having the same
WO2013113308A1 (en) * 2012-02-02 2013-08-08 Ixetic Bad Homburg Gmbh Compressor-heat exchanger unit for a heating-cooling module for a motor vehicle
US8764415B2 (en) 2008-03-28 2014-07-01 Mitsubishi Heavy Industries, Ltd. Integrated-inverter electric compressor
DE102014114837A1 (en) * 2014-10-13 2016-04-14 Bitzer Kühlmaschinenbau Gmbh Refrigerant compressor
FR3029032A1 (en) * 2014-11-20 2016-05-27 Valeo Equip Electr Moteur Alternative-continuous converter
CN106979147A (en) * 2016-01-15 2017-07-25 惠而浦股份公司 System, method and mechanism and air-tight compressor for electronic controller being connected and being fixed to air-tight compressor
EP3196461A3 (en) * 2016-01-15 2017-10-11 Whirlpool S.A. System, method and means for connecting and fixing an electronic control to an airtight compressor and an airtight compressor
US10454333B2 (en) 2012-12-14 2019-10-22 Continental Automotive Gmbh Actuator
DE102018113099A1 (en) * 2018-06-01 2019-12-05 Thyssenkrupp Ag Housing assembly for an electric drive or an electric drive unit, engine and vehicle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2058925A1 (en) * 2007-02-01 2009-05-13 Mitsubishi Heavy Industries, Ltd. Bus-bar connecting structure, and inverter-integrated type electric compressor
EP2058925A4 (en) * 2007-02-01 2012-07-18 Mitsubishi Heavy Ind Ltd Bus-bar connecting structure, and inverter-integrated type electric compressor
US8253020B2 (en) 2007-02-01 2012-08-28 Mitsubishi Heavy Industries Ltd. Bus-bar connection structure and inverter-integrated electric compressor
US8764415B2 (en) 2008-03-28 2014-07-01 Mitsubishi Heavy Industries, Ltd. Integrated-inverter electric compressor
EP2323243A3 (en) * 2009-11-13 2013-05-29 LG Electronics, Inc. Power module and vehicle having the same
US8598733B2 (en) 2009-11-13 2013-12-03 Lg Electronics Inc. Power module and vehicle having the same
EP2535587A4 (en) * 2010-02-10 2013-07-10 Mitsubishi Heavy Ind Ltd Inverter-integrated electric compressor
EP2535587A1 (en) * 2010-02-10 2012-12-19 Mitsubishi Heavy Industries, Ltd. Inverter-integrated electric compressor
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US9551516B2 (en) 2012-02-02 2017-01-24 Magna Powertrain Bad Homburg GmbH Compressor-heat exchanger unit for a heating-cooling module for a motor vehicle
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