WO2010052923A1 - 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
- WO2010052923A1 WO2010052923A1 PCT/JP2009/005922 JP2009005922W WO2010052923A1 WO 2010052923 A1 WO2010052923 A1 WO 2010052923A1 JP 2009005922 W JP2009005922 W JP 2009005922W WO 2010052923 A1 WO2010052923 A1 WO 2010052923A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- inverter
- voltage circuit
- shield plate
- integrated electric
- electric compressor
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000011347 resin Substances 0.000 claims description 32
- 229920005989 resin Polymers 0.000 claims description 32
- 239000000758 substrate Substances 0.000 abstract description 5
- 230000002265 prevention Effects 0.000 abstract description 2
- 230000004308 accommodation Effects 0.000 description 8
- 230000007257 malfunction Effects 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 7
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000005192 partition Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/0085—Prime movers
-
- 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
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/30—Casings or housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/40—Electric motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/40—Electric motor
- F04C2240/403—Electric motor with inverter for speed control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/803—Electric connectors or cables; Fittings therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/808—Electronic circuits (e.g. inverters) installed inside the machine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/07—Electric current
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/10—Voltage
Definitions
- the present invention relates to an inverter-integrated electric compressor.
- the stability of a control circuit can be improved by shielding electromagnetic noise while maintaining the same degree of design freedom as before, and the vibration of the control board is effective.
- the present invention relates to an inverter-integrated electric compressor that can be effectively prevented, has excellent operational stability, and can be realized at low cost.
- Patent Document 1 discloses a structure in which a motor drive circuit is covered with a resin mold material and embedded in the resin mold material as a structure of an electric compressor including a motor drive circuit including an inverter or the like. Are known.
- electromagnetic noise emitted from the high voltage circuit may cause a malfunction such as a malfunction of the control circuit configured by the low voltage circuit.
- a malfunction of the control circuit configured by the low voltage circuit Is required.
- an electromagnetic shielding shield is provided between a power module that is a high-voltage circuit and a power module drive circuit that is a low-voltage circuit, whereby electromagnetic waves emitted from the high-voltage circuit toward the low-voltage circuit are disclosed.
- a switching room structure of an inverter device that shields noise is disclosed.
- JP 2002-70743 A Japanese Patent No. 3729175
- an object of the present invention is to improve the stability of the control circuit by shielding electromagnetic noise while maintaining the design flexibility as high as before, and to effectively prevent the vibration of the control board.
- the object is to provide an inverter-integrated electric compressor excellent in operational stability at a low cost.
- an inverter-integrated electric compressor includes a motor, a motor driving high-voltage circuit including the inverter, and a control board having a control low-voltage circuit.
- a shield plate made of a material capable of shielding electromagnetic noise emitted from the motor driving high voltage circuit toward the control low voltage circuit is provided for the motor driving. It is interposed between a high voltage circuit and the control board, and the shield plate and the control board are fixed to each other, and both are fixed to a predetermined position in the compressor housing.
- the shield plate according to the present invention may be a thin plate and requires less installation space, it can be easily installed in an existing compressor and can be easily formed into a desired shape according to the shape of the installation site. Thus, the degree of freedom in designing the compressor can be maintained at the same high level as when a conventional shield plate is not installed.
- the present invention can be substantially realized only by adding a shield plate, the operational stability of the compressor can be improved at a low cost with almost no influence on the weight of the entire compressor.
- the material of the shield plate according to the present invention is not particularly limited, but is preferably made of a metal or an alloy because electromagnetic noise can be reliably shielded and workability is excellent.
- the shield plate is not particularly limited, but is preferably provided with a rib. By providing the rib, the rigidity of the shield plate is improved, and the vibration of the control board is more effectively prevented.
- the shield plate fixed portion to the control board is formed in a shape bulging in the direction of the control board.
- the fixing portion in a convex shape, the contact area between both members when fixing the control board and the shield plate can be reduced, and the transmission of vibration from the shield plate to the control board is suppressed, so that the control board Vibration is suppressed.
- the electrical component including the control board is provided in the housing space surrounded by the compressor housing, and the resin is filled in the housing space after the assembly is completed, the fixing portion bulges. Since the resin is filled in the gap formed between the control board and the shield plate, the control board is more reliably fixed and the vibration of the control board is more effectively prevented.
- the shield plate is not particularly limited, but also for electromagnetic noise emitted from the noise filter toward the control low voltage circuit. It is preferable to be configured to be shieldable. With such a configuration, the malfunction of the control low-voltage circuit due to electromagnetic noise is more reliably prevented, and the operational stability of the entire compressor is improved.
- the shield plate when the power line is connected to the motor driving high voltage circuit, the shield plate is not particularly limited, but also shields electromagnetic noise emitted from the power line toward the control low voltage circuit. It is preferable that the configuration is possible. With such a configuration, the malfunction of the control low-voltage circuit due to electromagnetic noise is further reliably prevented, and the operational stability of the entire compressor is improved.
- An inverter-integrated electric compressor is provided in an accommodation space in which an electric component including a motor driving high voltage circuit and a control board is surrounded by a compressor housing in order to achieve circuit insulation and vibration prevention of the electric component.
- the housing space may be filled with resin after assembly is completed, and at least a part of the electrical component may be sealed with a solidified filling resin.
- an air vent hole is provided in the shield plate so as to uniformly fill the housing space with the resin.
- the shield plate is preferably provided with a hole for filling the resin.
- a hole for filling the resin By providing such a hole for filling the resin, it becomes possible to easily inject the resin into the part covered by the shield plate, and it is possible to reliably fill the resin over the entire predetermined part in the accommodation space.
- the electrical components sealed with resin in the housing space are more securely fixed, and the operational stability of the entire compressor is improved.
- the resin filling holes may be used as the above-described air vent holes, or may be different holes.
- the application of the inverter-integrated electric compressor according to the present invention is not particularly limited, but it is possible to realize excellent operational stability by shielding electromagnetic noise and preventing vibration of the control board. It is suitable for use as a compressor, and particularly suitable for use as a compressor for a vehicle air conditioner.
- the stability of the control circuit can be improved by shielding electromagnetic noise while maintaining the same degree of freedom in design as in the past. It is possible to effectively prevent the vibration of the substrate and realize a compressor having excellent operational stability at low cost.
- FIG. 1 is a schematic longitudinal sectional view of an inverter-integrated electric compressor according to an embodiment of the present invention.
- FIG. 2 is a perspective view of an accommodation space forming portion, a shield plate, and a control board in the inverter-integrated electric compressor shown in FIG. 1.
- FIG. 2 is a circuit diagram for illustrating a shield plate installation portion in the inverter-integrated electric compressor shown in FIG. 1.
- FIG. 1 shows an inverter-integrated electric compressor according to an embodiment of the present invention, and particularly shows an example in which the present invention is applied to a scroll-type electric compressor.
- the inverter-integrated electric compressor 1 includes a compression mechanism 2 including a fixed scroll 3 and a movable scroll 4.
- the movable scroll 4 is turned with respect to the fixed scroll 3 in a state in which the rotation is prevented via the ball coupling 5.
- a motor 7 is incorporated in the compressor housing (center housing) 6, and the main shaft 8 (rotary shaft) is rotationally driven by the built-in motor 7.
- the rotational motion of the main shaft 8 is converted into the turning motion of the movable scroll 4 through the eccentric pin 9 disposed on one end side of the main shaft 8 and the eccentric bush 10 rotatably engaged thereto. ing.
- a suction port 11 for sucking refrigerant as a fluid to be compressed is provided in the compressor housing (front housing) 12, and the sucked refrigerant is guided to the compression mechanism 2 through the motor 7 arrangement portion.
- the refrigerant compressed by the compression mechanism 2 is sent to the external circuit through the discharge port 13, the discharge chamber 14, and the discharge port 16 provided in the compressor housing (rear housing) 15.
- a housing space 20 is formed by being surrounded by the extending portion of the compressor housing 12 (front housing), and a motor drive circuit 21 is provided in the housing space 20. More specifically, the motor drive circuit 21 is provided in the housing space 20 on the outer surface side of the partition wall 22 with the refrigerant suction path side formed in the compressor housing 12. The motor drive circuit 21 feeds power to the motor 7 via a sealed terminal 23 (an output terminal of the motor drive circuit 21) attached through the partition wall 22 and a lead wire 24. The path side and the motor drive circuit 21 installation side are sealed. In the present embodiment, the motor drive circuit 21 is provided on the outer surface side of the partition wall 22 so that at least a part of the electrical components including the motor drive circuit 21 can exchange heat with the suction refrigerant via the partition wall 22.
- Such a configuration is not limited to the scroll-type electric compressor, and can be applied to all types of inverter-integrated electric compressors in which the fluid to be compressed is a refrigerant.
- the motor drive circuit 21 includes a motor drive high voltage circuit 25 having an inverter function, and a control board 26 having a control low voltage circuit. Electric components such as a capacitor 27 are provided separately or integrally with the motor drive circuit 21. Is provided. Since the shield plate 31 capable of shielding electromagnetic noise is fixed in a state of being interposed between the motor driving high voltage circuit 25 and the control board 26, the control low voltage circuit provided on the control board is The motor drive high voltage circuit 25 is reliably protected from electromagnetic noise, and malfunctions such as malfunctions are prevented.
- the control board 26 is fixed to a convex fixing portion 32 provided on the shield plate 31 to prevent vibration. Therefore, the shield plate 31 can improve the electrical stability of the circuit and the physical stability of the electrical components, and an electric compressor having excellent operational stability can be realized. Note that, for the resin filling described later, the shield plate 31 is provided with an air vent hole 33 that can also be used as a resin filling hole.
- the motor drive circuit 21 is connected to an external power source (not shown) via a connector 28 as an input terminal.
- the opening side to the outside of the compressor housing 12 on which the electric parts including the motor drive circuit 21 are mounted is covered in a state of being sealed with a lid member 29, and these electric parts are protected by the lid member 29. .
- the electric components such as the motor drive circuit 21 and the capacitor 27 are arranged and then filled with the resin 34, and these are substantially entirely sealed by the solidified resin 34.
- the resin filling range is accommodated within the minimum necessary range in the accommodation space 20, and the overall weight of the compressor 1 is reduced.
- the shield plate 31 is provided with an air vent hole 33 that can also be used as a resin filling hole, and the generation and remaining of bubbles in the filled resin 34 is effectively prevented.
- the air vent hole 33 can also be used as a resin filling hole, and a gap is formed between the shield plate 31 and the control board 26 by a convex fixing portion 32. Also, resin filling is reliably achieved even at the portion shielded by the control board 26 and the shield plate 31, and the electrical components sealed in the accommodation space 20 are more securely fixed, and the operation stability of the entire compressor 1 is improved. Improvement is realized.
- FIG. 2 shows a schematic relationship among the accommodation space 20, the shield plate 31, and the control board 26 in the inverter-integrated electric compressor shown in FIG.
- the control board 26 provided with the control low voltage circuit is fastened to a fixing portion 32 formed on the shield plate 31 by screws 36.
- the rib 35 is formed to improve rigidity, and a part of the plurality of fixing portions 32 is formed in a convex shape to minimize the contact area with the control board 26. Therefore, the transmission of vibration is reduced.
- the air vent hole 33 that can also be used as the resin filling hole prevents the generation of bubbles in the filling resin 34, and the electric component sealed in the housing space 20 is more securely fixed.
- the high voltage circuit 25 for driving the motor installed in the accommodation space 20 is connected to the power supply line 38 via the noise filter 37 and is protected from signal line conductive noise caused by the power supply line 38. These electric components are supplied with a high voltage from an external power source through the power supply line 38, and there is a possibility that strong electromagnetic noise that may affect other electric components may be emitted to the surroundings.
- the shield plate 31 mounted on the control board 26 is configured to shield not only the high voltage circuit 25 for driving the motor but also electromagnetic noise emitted from the noise filter 37 and the power supply line 38, so that the control board 26 can be shielded.
- the control low voltage circuit provided is protected, and the operational stability of the compressor 1 is ensured.
- the above configuration is shown as an electric circuit, for example, as shown in FIG.
- the electric compressor 1 is provided with the motor drive circuit 21 as described above, and an output from the motor drive circuit 21 is sent to each motor winding of the built-in motor 7 via the sealing terminal 23 and the lead wire 24.
- the motor drive circuit 21 includes a motor drive high voltage circuit 25 and a control low circuit provided with a motor control circuit 44 for controlling each power element 43 (switching element) of the inverter 42 in the motor drive high voltage circuit 25.
- a voltage circuit 45 is provided, and the control low voltage circuit 45 is configured on the control board 26 described above.
- Electric power from an external power source 46 (for example, a battery) is fed to the motor driving high voltage circuit 25 through the high voltage connector 47 and supplied to the inverter 42 via the noise filter 37 and the smoothing capacitor 27.
- the direct current from the power supply 46 is converted into a pseudo three-phase alternating current at 42 and then supplied to the motor 7.
- low voltage power is supplied to the motor control circuit 44 via a control signal connector 49 from an air conditioning control device 48 of the vehicle.
- the control signal connector 49 and the high voltage connector 47 are illustrated at positions apart from each other, but in reality, they are installed in the same connector 28 shown in FIG. 1. .
- the shield plate 31 is fixed to the control board 26, and the shield plate 31 includes a motor driving high voltage circuit 25 and a control low voltage circuit 45 as shown in FIG.
- the motor driving high voltage circuit 25 is covered over a wide range as much as possible to suppress the influence of noise from the motor driving high voltage circuit 25 to the control low voltage circuit 45 side.
- the present invention can be applied to all types of inverter-integrated electric compressors, and in particular, excellent operational stability and vibration resistance are required, the required level of design freedom is high, and miniaturization and weight reduction are required. It is suitable as an inverter-integrated electric compressor for a vehicle air conditioner.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Compressor (AREA)
- Inverter Devices (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
位置関係が上記電磁ノイズ遮蔽のための所定の位置関係に維持されつつ、制御基板の振動が防止され、高速動作時においても圧縮機の動作安定性が確実に維持され、圧縮機の長寿命化が実現される。
れないが、上記シールドプレートには樹脂充填用の孔が設けられていることが好ましい。このような樹脂充填用の孔が設けられることにより、シールドプレートにより覆われた部位へも容易に樹脂を注入することが可能となり、収容空間内の所定部位全体にわたって樹脂を確実に充填することができ、収容空間内に樹脂で密封された電気部品がより確実に固定され、圧縮機全体の動作安定性の向上が実現される。なお、上記の樹脂充填用の孔は、前述の空気抜き用の孔と兼用されていてもよいし、それぞれが異なる孔であってもよい。
図1は、本発明の一実施態様に係るインバータ一体型電動圧縮機を示しており、とくに、スクロール型電動圧縮機に本発明を適用した例を示している。図1において、インバータ一体型電動圧縮機1は、固定スクロール3および可動スクロール4からなる圧縮機構2を備えている。可動スクロール4は、ボールカップリング5を介して自転が阻止された状態で、固定スクロール3に対して旋回されるようになっている。圧縮機ハウジング(センターハウジング)6内には、モータ7が組み込まれており、この内蔵モータ7によって主軸8(回転軸)が回転駆動される。主軸8の一端側に配設された偏心ピン9、それに対して回転自在に係合された偏心ブッシュ10を介して、主軸8の回転運動が可動スクロール4の旋回運動に変換されるようになっている。本実施態様では、被圧縮流体としての冷媒を吸入する吸入ポート11が圧縮機ハウジング(フロントハウジング)12に設けられており、吸入された冷媒は、モータ7配置部を通して圧縮機構2へと導かれ、圧縮機構2で圧縮された冷媒は、吐出孔13、吐出室14、圧縮機ハウジング(リアハウジング)15に設けられた吐出ポート16を通して外部回路に送られる。
2 圧縮機構
3 固定スクロール
4 可動スクロール
5 ボールカップリング
6 圧縮機ハウジング(センターハウジング)
7 モータ
8 主軸
9 偏心ピン
10 偏心ブッシュ
11 吸入ポート
12 圧縮機ハウジング(フロントハウジング)
13 吐出孔
14 吐出室
15 圧縮機ハウジング(リアハウジング)
16 吐出ポート
20 収容空間
21 モータ駆動回路
22 仕切壁
23 密封端子
24 リード線
25 モータ駆動用高電圧回路
26 制御基板
27 コンデンサ
28 コネクタ
29 蓋部材
31 シールドプレート
32 固定部
33 空気抜き用の孔
34 充填樹脂
35 リブ
36 ねじ
37 ノイズフィルタ
38 電源線
41 モータ巻線
42 インバータ
43 パワー素子(スイッチング素子)
44 モータ制御回路
45 制御用低電圧回路
46 外部電源
47 高電圧用コネクタ
48 空調制御装置
49 制御信号用コネクタ
Claims (9)
- モータが内蔵され、インバータを含むモータ駆動用高電圧回路と、制御用低電圧回路を備えた制御基板とが圧縮機ハウジング内に設けられたインバータ一体型電動圧縮機において、
前記モータ駆動用高電圧回路より前記制御用低電圧回路方向へ放出される電磁ノイズを遮蔽可能な材質からなるシールドプレートを、前記モータ駆動用高電圧回路と前記制御基板との間に介在させ、該シールドプレートと前記制御基板とを互いに固定するとともに、両者を前記圧縮機ハウジング内の所定位置に固定したことを特徴とするインバータ一体型電動圧縮機。 - 前記シールドプレートにリブが設けられている、請求項1に記載のインバータ一体型電動圧縮機。
- 前記シールドプレートにおける制御基板への固定部の少なくとも一部が、前記制御基板方向に凸に膨出された形状に形成されている、請求項1または2に記載のインバータ一体型電動圧縮機。
- 前記モータ駆動用高電圧回路における電源側にノイズフィルタが設けられており、前記シールドプレートが、該ノイズフィルタより前記制御用低電圧回路方向へ放出される電磁ノイズについても遮蔽可能に構成されている、請求項1~3のいずれかに記載のインバータ一体型電動圧縮機。
- 前記モータ駆動用高電圧回路に電源線が接続されており、前記シールドプレートが、該電源線より前記制御用低電圧回路方向へ放出される電磁ノイズについても遮蔽可能に構成されている、請求項1~4のいずれかに記載のインバータ一体型電動圧縮機。
- 前記モータ駆動用高電圧回路および前記制御基板を含む電気部品が圧縮機ハウジングで囲まれた収容空間内に設けられ、組立完了後に、前記収容空間内に樹脂が充填され、前記電気部品の少なくとも一部が固化された充填樹脂により密封された構造を有し、かつ、前記樹脂を収容空間内に均一に充填させるべく、前記シールドプレートに空気抜き用の孔が設けられている、請求項1~5のいずれかに記載のインバータ一体型電動圧縮機。
- 前記シールドプレートに樹脂充填用の孔が設けられている、請求項6に記載のインバータ一体型電動圧縮機。
- 車両に搭載される圧縮機からなる、請求項1~7のいずれかに記載のインバータ一体型電動圧縮機。
- 車両空調装置用の圧縮機からなる、請求項8に記載のインバータ一体型電動圧縮機。
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DE112009002679.6T DE112009002679B4 (de) | 2008-11-06 | 2009-11-06 | Elektrischer Verdichter mit integriertem Wechselrichter |
US13/128,130 US20110211980A1 (en) | 2008-11-06 | 2009-11-06 | Inverter Integrated Electric Compressor |
CN200980144668.0A CN102203418B (zh) | 2008-11-06 | 2009-11-06 | 逆变器一体型电动压缩机 |
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JP2008285616A JP5291436B2 (ja) | 2008-11-06 | 2008-11-06 | インバータ一体型電動圧縮機 |
JP2008-285616 | 2008-11-06 |
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US (1) | US20110211980A1 (ja) |
JP (1) | JP5291436B2 (ja) |
CN (1) | CN102203418B (ja) |
DE (1) | DE112009002679B4 (ja) |
WO (1) | WO2010052923A1 (ja) |
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Also Published As
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CN102203418B (zh) | 2014-07-30 |
CN102203418A (zh) | 2011-09-28 |
JP2010112261A (ja) | 2010-05-20 |
DE112009002679T5 (de) | 2013-04-04 |
DE112009002679B4 (de) | 2016-08-18 |
US20110211980A1 (en) | 2011-09-01 |
JP5291436B2 (ja) | 2013-09-18 |
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