WO2014129215A1 - インバータ一体型電動圧縮機 - Google Patents
インバータ一体型電動圧縮機 Download PDFInfo
- Publication number
- WO2014129215A1 WO2014129215A1 PCT/JP2014/050103 JP2014050103W WO2014129215A1 WO 2014129215 A1 WO2014129215 A1 WO 2014129215A1 JP 2014050103 W JP2014050103 W JP 2014050103W WO 2014129215 A1 WO2014129215 A1 WO 2014129215A1
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- WO
- WIPO (PCT)
- Prior art keywords
- inverter
- filter circuit
- board
- power
- substrate
- Prior art date
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and 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
- F04B35/04—Piston pumps specially adapted for elastic fluids and 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/14—Provisions for readily assembling or disassembling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
- H05K7/14322—Housings specially adapted for power drive units or power converters wherein the control and power circuits of a power converter are arranged within the same casing
Definitions
- the present invention relates to an inverter-integrated electric compressor in which an inverter device is integrally incorporated in a housing of the electric compressor.
- An inverter-integrated electric compressor in which an inverter device is integrated is used as a compressor of an air conditioner mounted on an electric vehicle, a hybrid vehicle, or the like.
- This inverter-integrated electric compressor is driven by converting high-voltage DC power supplied from a power supply unit mounted on a vehicle into three-phase AC power of a required frequency by an inverter device and applying it to an electric motor. It is configured to be.
- the inverter device is provided on a high voltage line from a power source, for example, a high voltage system electrical component such as a coil or a capacitor constituting a filter circuit for noise removal, and an IGBT that converts DC power into three-phase AC power.
- a power source for example, a high voltage system electrical component such as a coil or a capacitor constituting a filter circuit for noise removal, and an IGBT that converts DC power into three-phase AC power.
- the system board and the control system board are connected to each other, and the configuration is such that the DC power input via the PN terminal is converted into three-phase AC power and output from the UVW terminal.
- an inverter module in which an IPM (intelligent power module) and a control system board are provided and integrated on a metal base plate is installed in an inverter box provided on the housing side,
- a filter circuit for noise removal is provided, which is configured by mounting high-voltage electrical components such as coils and capacitors on a resin board. It is disclosed that the box is covered with an upper surface and sealed, and the filter circuit and the PN terminal of the IPM are connected by a bus bar.
- Patent Document 2 discloses an electric power in which a coil, a capacitor, a switching element, and the like are mounted on the inner surface side of a substrate cover that covers an inverter accommodating portion provided on the housing side through a fixture such as a bolt or a nut.
- the conversion board is fixedly installed via a cover-side elastic member, the coil cover and the capacitor are installed in the insertion recess on the housing side, and the switching element is installed on the element-facing surface on the housing side with respect to the housing.
- the one that is positioned and fixedly installed is disclosed.
- Patent Document 1 discloses that the filter circuit of the inverter device is configured by mounting a coil or a capacitor on a resin substrate.
- the filter circuit substrate is provided on the junction box side, An IPM and a control system board are provided on the inverter box side, and a space between them is electrically connected by a bus bar assembly.
- Patent Document 2 after the inverter devices are assembled together on the board cover side, and coupled to the housing side of the electric compressor, a filter circuit in which a coil and a capacitor are mounted on one power conversion board, A circuit provided with a switching circuit on which a switching element is mounted and a control circuit for controlling the switching circuit is disclosed. According to this, simplification of the configuration by reducing the number of parts, ease of assembly, cost reduction and the like can be expected, but enlargement of the power conversion board is inevitable. For this reason, there is a problem that the inverter accommodating portion becomes large, and as a result, the compressor becomes large.
- the power conversion board is a large board in which a high voltage region and a low voltage region are mixed, but a current density corresponding to a high voltage must be ensured. Therefore, an expensive substrate corresponding to a high voltage has to be used as a substrate, and there is a problem that a part is excessively specified and is wasted, so that cost reduction cannot always be expected.
- the present invention has been made in view of such circumstances, and the filter circuit is made into a board to eliminate busbar connection, improve the assembly of the inverter device, optimize the board configuration, and make the inverter device compact and compact.
- An object of the present invention is to provide an inverter-integrated electric compressor that is reduced in cost and cost.
- the inverter-integrated electric compressor of the present invention employs the following means. That is, the inverter-integrated electric compressor according to the present invention is an inverter-integrated electric compressor in which an inverter device is integrated in an inverter housing portion provided on the outer periphery of the housing. A plurality of high-voltage electrical components constituting a filter circuit for noise removal, a power system board on which a power element is mounted, a control system board on which a control system circuit is mounted, and the plurality of high-voltage system electrical components And a plurality of high-voltage system electrical components, the power system board, the control system board, and the filter circuit board. And is configured to be accommodated and installed in the inverter accommodating portion.
- the inverter device can be made smaller and more compact, and further, the inverter-integrated electric compressor can be further reduced in size and weight.
- the inverter device integrated as a unit through the resin structure is integrally incorporated in the electric compressor by fastening the resin structure to the inverter housing portion with a screw or the like, and the The unit can be removed from the inverter housing by removing the screw. Therefore, the assembly or maintenance of the inverter device can be simplified and facilitated.
- the inverter device includes a UVW bus bar that outputs the electric power converted into the three-phase AC power by the unitized inverter device to the electric motor side through a glass sealed terminal. It is preferable to provide.
- the power converted into the three-phase AC power of the required frequency by the unitized inverter device is output from the UVW bus bar to the glass sealed terminal and applied to the electric motor built in the housing. Can do. Therefore, by the intervention of the UVW bus bar, the degree of freedom in layout between the output position of the unitized inverter device and the glass sealed terminal provided in the inverter housing portion can be ensured, and the design can be facilitated.
- the power system board and the filter circuit board have the same structure capable of ensuring a current density corresponding to a high voltage.
- the filter circuit board and the power system board which are the same high voltage system boards provided in the high voltage line and both carry a large amount of electricity corresponding to the high voltage, are formed by the same structure board. Can be configured. Therefore, the substrate material used in the power system substrate can be applied to the filter circuit board as it is, and the manufacturing cost of the filter circuit board can be reduced.
- the power system board and the filter circuit board have a multi-layer structure.
- the power system board and the filter circuit board are made of the same board material, and are separated and divided. .
- two power system boards and filter circuit boards of a high voltage system can be manufactured as a set by taking two sheets from the same substrate material. Therefore, the power system board and the filter circuit board can be efficiently manufactured and the cost can be reduced.
- a filter circuit for noise removal constituted by connecting a plurality of high voltage system electrical components such as a capacitor and a coil on a high voltage line, and a plurality of high voltage system electrical components to the filter circuit board
- the filter circuit board is integrated into a unit together with a plurality of high-voltage system electrical components, power system boards, control system boards, etc., and incorporated in the inverter housing part of the housing, so that the inverter-integrated electric motor A compressor can be assembled. Therefore, the high voltage system filter circuit board and the power system board can be separated from the control system board, and a board capable of securing a current density corresponding to the high voltage can be obtained.
- FIG. 4 is a schematic cross-sectional view of a four-layer structure substrate applied to a power system substrate and a filter circuit substrate of the inverter device.
- FIG. 1 shows a perspective view of the main part of an inverter-integrated electric compressor according to an embodiment of the present invention
- FIG. 2 shows a longitudinal sectional view along the axial direction of the motor housing.
- FIG. 4 is a perspective view of the assembled state.
- the inverter-integrated electric compressor 1 includes a cylindrical housing 2 that forms an outer shell.
- the housing 2 has a structure in which a motor housing 3 for incorporating an electric motor (not shown) and a compressor housing (not shown) for incorporating a compression mechanism (not shown) are integrally coupled.
- an electric motor built in the housing 2 and a compression mechanism are connected via a rotating shaft, and the electric motor is rotationally driven via an inverter device 7 described later.
- the compression mechanism is driven, and the low-pressure refrigerant gas sucked into the interior through the suction port 4 provided on the rear end side surface of the motor housing 3 is sucked through the periphery of the electric motor, and is compressed by the compression mechanism. After being compressed and discharged into the compressor housing, it is sent out to the outside.
- the motor housing 3 is formed with a plurality of refrigerant flow passages 5 for circulating the refrigerant along the axial direction on the inner peripheral surface side, and a plurality of installation leg portions 6 of the electric compressor 1 are formed on the outer peripheral portion thereof. It is provided in the place.
- an inverter housing portion 8 for integrally incorporating the inverter device 7 is integrally formed on the outer peripheral portion of the housing 2 (motor housing 3 side).
- the inverter accommodating portion 8 has a substantially square shape in plan view, the bottom surface is a partially flat base surface 9 formed by the wall surface of the motor housing 3, and the flange portion 10 is raised around the periphery. It is configured.
- the inverter accommodating portion 8 is hermetically sealed by attaching a lid 11 to the flange portion 10 as shown in FIG. 2 after the inverter device 7 is incorporated.
- a high voltage cable from a power supply unit mounted on the vehicle is connected to the lid 11 via a connector (not shown), and the connector and the P ⁇ provided on the inverter device 7 side are connected.
- An N terminal 34 (see FIG. 1) is connected. As a result, a high DC voltage is applied to the inverter device 7.
- the inverter device 7 converts high-voltage DC power supplied from a power supply unit mounted on a vehicle via a high-voltage cable into three-phase AC power having a required frequency, and applies it to the electric motor. Is to drive.
- the inverter device 7 includes a resin structure 12, a plurality of high-voltage electrical components 13 accommodated and installed in the resin structure 12, and a power system assembled on the lower surface side of the resin structure 12.
- the inverter device 7 is provided with a UVW bus bar 31 for outputting the three-phase AC power converted by the inverter device 7 to the electric motor side.
- the resin structure 12 is for unitizing the inverter device 7 integrally.
- the resin structure 12 includes a bottomed housing part 17 having a required volume for housing and installing a plurality of high-voltage system parts 13, and a frame-like assembly part 18 for assembling the power system board 14 and the control system board 15.
- the accommodating portion 17 is formed to correspond to one side of the assembly portion 18, that is, the outer peripheral side surface where the suction port 4 of the motor housing 3 is provided.
- the housing portion 17 is mounted on the filter circuit board 16 so that a plurality of heights such as a common mode coil 21, a normal mode coil 22 and a smoothing capacitor 23 constituting the noise removal filter circuit 16A are provided.
- the voltage system electrical component 13 is accommodated and installed.
- the accommodating portion 17 has a shape having an accommodating space that matches the outer shapes of the circular coils 21 and 22 and the square-shaped capacitor 23, and a plurality of high-voltage electrical components 13 are bonded to the accommodating portion 17. It is designed to be fixedly installed via an agent or the like.
- the assembling part 18 is integrally formed on one side of the accommodating part 17 and is a frame-like assembling body having a height dimension for securing a required interval between the upper and lower power system boards 14 and the control system board 15.
- a large number of assembly boss portions 24 for assembling the power system substrate 14 and the control system substrate 15 are provided in the inner periphery of the assembly portion 18, and a central portion thereof is a space 25.
- a support portion 26 of the control system substrate 15 projecting in an L shape from one corner of the assembly portion 18 with respect to the central portion of the space 25 is integrally formed.
- the resin structure 12 includes the PN terminal 34 and the filter circuit board 16, the filter circuit board 16 and the power system board 14, and the power system board 14 and the control system board 15. It is assumed that connection terminals for electrical connection are insert-molded in advance.
- the power system board 14 is mounted with a switching circuit 28 composed of a plurality of (six) switching elements (power elements) 27 such as IGBTs that convert DC power into three-phase AC power.
- the power substrate 14 is assembled by being fastened and fixed to the assembly boss portion 24 provided on the lower surface side of the assembly portion 18 of the resin structure 12 via a screw or the like.
- the power substrate 14 is provided with, for example, four layers of copper foils L1-L4 with respect to the core material B, so that a current density corresponding to a high voltage can be secured.
- a heat-penetrating portion 29 made of a heat conductive material such as copper corresponding to a portion where a power element 27 that generates heat is provided, which is a possible multi-layer structure substrate PWB such as a four-layer structure substrate (see FIG. 2) And is a so-called copper inlay substrate that can conduct heat from the front surface side to the back surface side of the substrate.
- the heat penetration portion 29 of the power board 14 forms the bottom surface of the inverter accommodating portion 8 as shown in FIG. 2.
- the heat generated by the power element 27 is brought into contact with the substantially flat pedestal surface 9 of the motor housing 3 to be radiated to the pedestal surface 9 of the motor housing 3 through the heat penetration portion 29, so that the pedestal surface 9 is heat-sinked.
- the power element 27 can be cooled. Note that the pedestal surface 9 of the motor housing 3 is cooled by the low-pressure refrigerant gas sucked from the suction port 4 flowing through the refrigerant flow passage 5, and thus sufficiently functions as a heat sink as described above.
- the control system board 15 is mounted with a control circuit 30 that operates at a low voltage such as a CPU, and controls the operation of the inverter device 7 by a control signal from an ECU mounted on the vehicle side.
- the control system substrate 15 is assembled to the upper surface of the assembly portion 18 of the resin structure 12 by being fastened and fixed to the assembly boss portion 24 with screws or the like. And the central part is supported from the lower part via the support part 26 currently shape
- the control system board 15 may be fixed to the support portion 26 with screws.
- the filter circuit board 16 constitutes a high voltage line that guides the DC power input to the PN terminal 34 to the power system board 14, and a common mode coil with respect to the wiring pattern constituting the high voltage line. 21.
- a plurality of high-voltage electrical parts 13 such as a normal mode coil 22 and a smoothing capacitor 23 are mounted by soldering or brazing their terminals and pattern-connected to form a filter circuit 16A as is well known. Is.
- the filter circuit board 16 is assembled and fixed to the upper surface side of the accommodating portion 17 of the high-voltage electrical component 13 with respect to the resin structure 12.
- the filter circuit board 16 needs to be a board capable of securing a current density corresponding to a high voltage. Therefore, as with the power substrate 14, as shown in FIG. 5, a multi-layer structure substrate PWB such as a four-layer structure substrate in which copper foils L1-L4 are provided in four layers is used.
- the filter circuit board 16 and the power system board 14 use the same multi-layer structure board PWB. Therefore, the filter circuit board 16 and the power system board 14 are taken from the same board material to be manufactured as a set, and the board can be separated and divided.
- the UVW bus bar 31 is for outputting three-phase AC power from the inverter device 7 to the electric motor side. As shown in FIG. 2, the UVW bus bar 31 is configured by using a space 25 between the power system board 14 and the control system board 15 that sandwich the assembly portion 18 of the resin structure 12 from above and below. Has been.
- the UVW bus bar 31 is connected to a glass sealed terminal 32 that is installed in the inverter accommodating portion 8 through the housing 2 (motor housing 3). Thereby, it is electrically connected to the electric motor through the cluster block 33 to which the glass sealing terminal 32 is connected.
- the PN terminal 34 is installed on the resin structure 12 side so as to protrude above the filter circuit board 16, and the connector on the high voltage cable side provided on the lid 11 side is inserted. It is possible to connect.
- the PN terminal 34 is connected to a high voltage line constituted by the wiring pattern of the filter circuit board 16.
- the inverter device 7 uses the resin structure 12 as a base material, and the common mode coil 21, the normal mode coil 22, the smoothing capacitor 23, and the like that are components of the inverter device 7 with respect to the resin structure 12.
- a sub-assembly is assembled by assembling a plurality of high voltage system electrical components 13, a power system board 14, a control system substrate 15, a filter circuit board 16 constituted by mounting a plurality of high voltage system electrical components 13, a UVW bus bar 31, and the like.
- an integrated inverter unit (unit) 35 is configured.
- the inverter unit 35 is accommodated in the inverter accommodating portion 8 provided in the housing 2 (motor housing 3), and the leg portion 20 of the resin structure 12 is fastened and fixed by the screws 19, and then the lid 11 is attached. And seal. Thereby, the inverter-integrated electric compressor 1 in which the inverter unit 35 is detachably incorporated in the inverter accommodating portion 8 is configured.
- the inverter device 7 incorporated in the inverter accommodating portion 8 of the housing 2 includes the plurality of high-voltage system electrical components 13 constituting the noise removal filter circuit 16A and the power element 27.
- the power circuit board 14 mounted with the control system circuit 15, the control system board 15 mounted with the control system circuit 30, and the plurality of high-voltage system electrical components 13 are mounted in a pattern connection to form a filter circuit 16A.
- a filter circuit 16A for noise removal constituted by connecting a plurality of high-voltage electrical components 13 such as a common mode coil 21, a normal mode coil 22, and a smoothing capacitor 23 on a high voltage line is replaced with a filter circuit. It is configured by pattern connection of a plurality of high voltage system electrical components 13 to the substrate 16, and the filter circuit board 16 is unitized integrally with the plurality of high voltage system electrical components 13, the power system substrate 14, the control system substrate 15, etc.
- the high-voltage filter circuit board 16 and the power-system board 14 can be separated from the control-system board 15 so that a current density corresponding to a high voltage can be secured.
- the connection by the bus bar between the plurality of high-voltage electrical parts 13 constituting the filter circuit 16A, the welding thereof, etc. are omitted, the assembly is simplified, the man-hours are reduced, and the manufacturing cost is thereby reduced, thereby improving the productivity. Can be improved.
- the inverter device 7 can be made smaller and more compact, and further, the inverter-integrated electric compressor 1 can be further reduced in size and weight and weight.
- the inverter device 7 includes a resin structure 12 in which a housing portion 17 for a plurality of high-voltage system electrical components 13 and an assembly portion 18 for a plurality of substrates 14, 15, 16 are integrally formed, and a resin structure A plurality of high voltage system electrical components 13, a power system board 14, a control system board 15, a filter circuit board 16 and a UVW bus bar 31 are assembled to the body 12, and are configured as a unit as an inverter unit 35. ing.
- the inverter unit 35 unitized as a unit via the resin structure 12 is integrated with the electric compressor 1 by fastening the leg portion 20 of the resin structure 12 to the inverter accommodating portion 8 with screws 19 or the like.
- the inverter unit 35 can be removed from the inverter housing portion 8 by being assembled and being removed. Therefore, the assembly or maintenance of the inverter device 7 can be simplified and facilitated.
- the inverter device 7 includes the UVW bus bar 31 that outputs the power converted into the three-phase AC power by the unitized inverter device 7 to the electric motor side through the glass sealed terminal 32. .
- the power converted into the three-phase alternating current power of a required frequency with the unitized inverter apparatus 7 is output to the glass sealing terminal 32 from the UVW bus bar 31, and is incorporated in the housing 2 (motor housing 3). It can be applied to an electric motor.
- the UVW bus bar 31 By interposing the UVW bus bar 31 as described above, the degree of freedom in layout between the output position of the unitized inverter device 7 and the glass sealed terminal 32 provided in the inverter accommodating portion 8 is secured, and the design is facilitated. Can do.
- the power system substrate 14 and the filter circuit substrate 16 are substrates having the same structure capable of ensuring a current density corresponding to a high voltage. This is the inverter device 7, and the filter circuit board 16 and the power system board 14 are the same high voltage system board, and both are boards through which a large amount of electricity flows. Can do. For this reason, the board
- substrate 14 can be applied to the filter circuit board 16 as it is, and manufacture of the filter circuit board 16 can be reduced in cost.
- the power system substrate 14 and the filter circuit substrate 16 are, for example, a multi-layer structure substrate PWB such as a four-layer structure.
- a multi-layer structure substrate PWB such as a four-layer structure.
- the power system substrate 14 and the filter circuit substrate 16 are made of the same substrate material, and are configured to be separated and divided. For this reason, two high-voltage power boards 14 and filter circuit boards 16 are manufactured as a set by taking two sheets from the same substrate material, that is, a multi-layer structure substrate PWB such as a four-layer structure. Can do. Therefore, the power system board and the filter circuit board can be efficiently manufactured and the cost can be reduced.
- the housing portion 17 that houses the plurality of high-voltage components 13 of the resin structure 12 is arranged facing the side surface on the suction port 4 side.
- the arrangement configuration can be appropriately changed with a certain degree of freedom, such as a configuration that faces the end face side.
- the said embodiment although it was set as the structure which connects the connector provided in the cover body 11 side with the high voltage cable from a power supply, and input the high voltage into the inverter apparatus 7 there, the side surface of the inverter accommodating part 8, etc. Alternatively, a high voltage may be input.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Inverter Devices (AREA)
- Compressor (AREA)
Abstract
Description
すなわち、本発明にかかるインバータ一体型電動圧縮機は、ハウジングの外周に設けられたインバータ収容部に、インバータ装置が組み込まれて一体化されているインバータ一体型電動圧縮機において、前記インバータ装置は、ノイズ除去用のフィルタ回路を構成する複数の高電圧系電装部品と、パワー素子が実装されているパワー系基板と、制御系回路が実装されている制御系基板と、前記複数の高電圧系電装部品がパターン接続されて実装されることにより前記フィルタ回路を構成するフィルタ回路基板と、を備え、前記複数の高電圧系電装部品、前記パワー系基板、前記制御系基板および前記フィルタ回路基板が一体にユニット化され、前記インバータ収容部に収容設置される構成とされていることを特徴とする。
図1には、本発明の一実施形態の係るインバータ一体型電動圧縮機の主要部の斜視図が示され、図2には、モータハウジングの軸線方向に沿う縦断面図が示され、図3には、インバータ装置の分解斜視図が示され、図4には、そのアセンブリ状態の斜視図が示されている。
インバータ一体型電動圧縮機1は、外殻を構成する円筒形状とされたハウジング2を備えている。ハウジング2は、電動モータ(図示省略)を内蔵するためのモータハウジング3と、圧縮機構(図示省略)を内蔵するための圧縮機ハウジング(図示省略)とを一体に結合した構成とされている。
なお、樹脂構造体12には、P-N端子34とフィルタ回路基板16との間、フィルタ回路基板16とパワー系基板14との間、パワー系基板14と制御系基板15との間をそれぞれ電気的に接続するための接続端子類が予めインサート成形されているものとする。
2 ハウジング
3 モータハウジング
7 インバータ装置
8 インバータ収容部
12 樹脂構造体
13 高電圧系電装部品
14 パワー系基板
15 制御系基板
16 フィルタ回路基板
16A フィルタ回路
17 収容部
18 組み付け部
21 コモンモードコイル(高電圧系電装部品)
22 ノーマルモードコイル(高電圧系電装部品)
23 平滑コンデンサ(高電圧系電装部品)
27 パワー素子
30 制御系回路
31 UVWバスバー
32 ガラス密封端子
35 インバータユニット(ユニット)
PWB 複数層構造基板
Claims (6)
- ハウジングの外周に設けられたインバータ収容部に、インバータ装置が組み込まれて一体化されているインバータ一体型電動圧縮機において、
前記インバータ装置は、ノイズ除去用のフィルタ回路を構成する複数の高電圧系電装部品と、パワー素子が実装されているパワー系基板と、制御系回路が実装されている制御系基板と、前記複数の高電圧系電装部品がパターン接続されて実装されることにより前記フィルタ回路を構成するフィルタ回路基板と、を備え、
前記複数の高電圧系電装部品、前記パワー系基板、前記制御系基板および前記フィルタ回路基板が一体にユニット化され、前記インバータ収容部に収容設置される構成とされているインバータ一体型電動圧縮機。 - 前記インバータ装置は、前記複数の高電圧系電装部品の収容部と前記各基板の組み付け部とが一体に成形された樹脂構造体を備え、
前記樹脂構造体の前記収容部に前記複数の高電圧系電装部品が収容設置され、
前記樹脂構造体の前記組み付け部の下面側に前記パワー系基板が組み付けられ、
前記樹脂構造体の前記組み付け部の上面側に前記制御系基板が組み付けられ、
前記樹脂構造体の前記高電圧系電装部品を収容設置する前記収容部の上面側に前記フィルタ回路基板が組み付けられることにより、一体にユニット化されている請求項1に記載のインバータ一体型電動圧縮機。 - 前記インバータ装置は、前記ユニット化されたインバータ装置で三相交流電力に変換された電力を、ガラス密封端子を経て電動モータ側に出力するUVWバスバーを備えている請求項2に記載のインバータ一体型電動圧縮機。
- 前記パワー系基板および前記フィルタ回路基板は、高電圧に対応した電流密度の確保が可能な同一構造の基板とされている請求項1ないし3のいずれかに記載のインバータ一体型電動圧縮機。
- 前記パワー系基板および前記フィルタ回路基板は、複数層構造基板とされている請求項4に記載のインバータ一体型電動圧縮機。
- 前記パワー系基板および前記フィルタ回路基板は、同一の基板材料で作られ、分離、分割して構成される基板とされている請求項4または5に記載のインバータ一体型電動圧縮機。
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DE112014000909.1T DE112014000909T5 (de) | 2013-02-20 | 2014-01-08 | Elektrischer Kompressor mit integriertem Wechselrichter |
CN201480003584.6A CN104995405B (zh) | 2013-02-20 | 2014-01-08 | 逆变器一体式电动压缩机 |
US14/652,699 US10424990B2 (en) | 2013-02-20 | 2014-01-08 | Inverter-integrated electric compressor |
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