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CN113424405B - Electric compressor - Google Patents

Electric compressor Download PDF

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Publication number
CN113424405B
CN113424405B CN202080013109.2A CN202080013109A CN113424405B CN 113424405 B CN113424405 B CN 113424405B CN 202080013109 A CN202080013109 A CN 202080013109A CN 113424405 B CN113424405 B CN 113424405B
Authority
CN
China
Prior art keywords
axial direction
motor
neutral point
fitted
winding frame
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.)
Active
Application number
CN202080013109.2A
Other languages
Chinese (zh)
Other versions
CN113424405A (en
Inventor
篠原昂佳
池田贵大
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.)
Sanden Corp
Original Assignee
Sanden 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
Application filed by Sanden Corp filed Critical Sanden Corp
Publication of CN113424405A publication Critical patent/CN113424405A/en
Application granted granted Critical
Publication of CN113424405B publication Critical patent/CN113424405B/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
    • 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
    • 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
    • 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
    • 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
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/12—Machines characterised by the bobbins for supporting the windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Compressor (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

在收容中性点的收容构件的安装结构中，抑制大型化。将中性点盒(24)配置在集群外壳(31)的后侧，并且以不比绝缘件(22)的前端更向集群外壳(31)一侧突出的方式嵌入到绝缘件(22)。

In the mounting structure of the accommodating member for accommodating the neutral point, the size is suppressed. The neutral point box (24) is arranged on the rear side of the cluster housing (31) and is embedded in the insulating member (22) in a manner that does not protrude further toward the cluster housing (31) than the front end of the insulating member (22).

Description

Electric compressor
Technical Field
The present invention relates to an electric compressor.
Background
In patent document 1, a neutral point of a stator in a motor is inserted into an insulating stopper, and the stopper is mounted to the stator.
Prior art literature
Patent literature
Patent document 1 Japanese patent laid-open No. 6-22484
Disclosure of Invention
Technical problem to be solved by the invention
In the case where the insulator attached to the stator core is molded by dividing it for each slot, it is conceivable to house the neutral point of the stator in a housing member and attach the housing member to a part of the insulator, but there is a possibility that the housing member may be enlarged due to the arrangement of the housing member.
The invention aims to restrain the enlargement of a mounting structure of a receiving member for receiving a neutral point.
Technical proposal adopted for solving the technical problems
An electric compressor according to an embodiment of the present invention includes:
A plurality of reel members which are included in a stator of the motor and are individually molded for each of the slots around which the coils are wound;
a connector member fitted to one end of the reel member in the axial direction of the motor and connected to a current-carrying terminal, and
And a housing member which houses the neutral point of the coil, is disposed on the other side in the motor axial direction of the connector member, and is fitted to one end side in the motor axial direction of the reel member so as not to protrude to one side of the connector member than one end in the motor axial direction of the reel member.
Effects of the invention
According to the present invention, since the housing member is disposed so as to be fitted to the reel member and not to protrude to the connector member side, the enlargement can be suppressed.
Drawings
Fig. 1 is a sectional view of a compressor in an axial direction.
Fig. 2 is a diagram showing a stator.
Fig. 3 is a view showing an insulator.
Fig. 4 is a view showing a neutral point box.
Fig. 5 is a view showing a state after the neutral point cassette is fitted.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings. The drawings are schematic, and may differ from actual components. The following embodiments exemplify an apparatus and a method for embodying the technical idea of the present invention, and the configuration is not specifically defined as follows. That is, the technical idea of the present invention can be variously changed within the technical scope described in the claims.
One embodiment
Structure
Fig. 1 is a sectional view of a compressor in an axial direction.
The compressor 11 (electric compressor) is an electric scroll compressor used in a refrigerant circuit of a vehicle air conditioner, for example. That is, when driven by a motor installed and built in the vehicle, the refrigerant is sucked and compressed, and then discharged.
The motor 13 is housed in the inside of the stator housing 12 of the compressor 11 that maintains air tightness. The motor 13 includes a stator 14 fixed to an inner peripheral surface of the stator housing 12, and a rotor 15 rotatably disposed inside the stator 14.
The stator 14 includes a stator core 21, an insulator 22 (coil frame member), and a coil 23. The stator core 21 is formed in an annular shape and is fixed to the inner peripheral surface of the stator housing 12. The insulator 22 is a frame member around which the coil 23 is wound, and is fitted into a groove formed in the inner peripheral surface of the stator core 21. The rotary shaft 25 is rotatably supported in the stator housing 12, and a rotor 15 made of a permanent magnet is fixed to the rotary shaft 25.
An inverter housing portion 26 is formed on the front side of the stator housing 12, and a drive circuit 27 of the motor 13 is housed inside the inverter housing portion 26. The drive circuit 27 is connected to the coil 23 via a power-on terminal 28.
Fig. 2 is a diagram showing a stator.
Here, the coil 23 is omitted from illustration. The insulator 22 is, for example, an insulating member molded from synthetic resin, the insulator 22 is molded separately for each of the slots around which the coils 23 are wound, and the insulators 22 are mounted to the stator core 21, respectively. Here, an example of a three-phase twelve-slot is shown.
A cluster housing 31 (connector member) is fitted to the axial front side of a part of the insulator 22. The cluster housing 31 is a connector member including three phases, and is connected with the energizing terminals 28 from the axial front side.
A neutral point box (housing member) 24 is fitted to a part of the insulator 22. The coils 23 are connected to one end of each phase at a neutral point by a star connection, the neutral point being soldered on the basis of the twisted connection, for example, and fixed by a molded resin in the neutral point box 24.
The neutral point cassette 24 is disposed on the axial rear side of the cluster housing 31. Further, the insulator 22 is fitted to the axial distal end sides of the two insulators 22 so as not to protrude further toward the cluster housing 31 than the axial distal end sides of the insulators 22.
Fig. 3 is a view showing an insulator.
In the figure, (a) is a perspective view from the radially inner side and the axially front side, and (b) is a perspective view from the radially outer side and the axially front side. The insulator 22 is formed with a protruding plate 32 at a position axially forward and radially outward. The protruding plate 32 protrudes toward the front side in the axial direction and is disposed so that the surface direction is orthogonal to the radial direction. A notch-shaped recess 33 partially recessed toward the rear side in the axial direction is formed at the front end of the protruding plate 32. The insulator 22 has a winding protrusion 34 formed at a position radially inward of the axial tip. The protrusion 34 protrudes from the reference surface 35 toward the front side in the axial direction, and the front end portion is formed in a substantially T-shape as viewed in the axial direction, and the base end side is engaged with one end side of the coil 23. The tip position of the protruding plate 32 and the tip position of the protruding portion 34 are substantially the same as each other as viewed in the direction orthogonal to the axial direction.
Fig. 4 is a view showing a neutral point box.
In the figure, (a) is a perspective view from the radially inner side and the axially front side, and (b) is a perspective view from the radially outer side and the axially front side. The neutral point box 24 is a bottomed container whose front side in the axial direction is open, and is fitted into the adjacent two insulators 22, and therefore is bent into an obtuse angle (150 degrees in this case) shape as viewed in the axial direction.
The neutral point case 24 is formed with an eave 41 fitted into the recess 33 of the protruding plate 32 in each insulator 22 at a position radially outside. Here, one eave 41 is formed for one insulator 22, and two eave 41 are provided in total. Each of the eaves 41 protrudes from the axial front end of the neutral point box 24 in a direction (or radial direction) orthogonal to the axial direction. The thickness of each of the eaves 41 corresponds to the depth of the recess 33.
The neutral point tank 24 is formed with a leg 42 at a position radially inward. Here, two leg portions 42 are formed for one insulator 22, and four leg portions 42 are present in total. Each leg 42 protrudes toward the rear side in the axial direction from a position sandwiching both sides of the protruding portion 34 in each insulator 22.
Fig. 5 is a view showing a state after the neutral point cassette is fitted.
In the figure, (a) is a perspective view from the inside in the radial direction, and (b) is a perspective view from the outside in the radial direction. The insulators 22 into which the neutral point boxes 24 are fitted are only two insulators arranged at predetermined positions. Since the shorter the coil 23 drawn out as the neutral point is, the more excellent the vibration resistance is, it is preferable to select the final binding position as the base point within an angle range of 180 degrees or less of the base point.
When the neutral point boxes 24 are fitted to the respective insulators 22, the eaves 41 of the neutral point boxes 24 are fitted to the concave portions 33 of the protruding plates 32, and the tips of the leg portions 42 are brought into contact with the reference surfaces 35. At this time, the front end surface of the neutral point box 24 in the axial direction is substantially the same as the front end position of the protruding plate 32 and the front end position of the protruding portion 34, as viewed in the direction orthogonal to the axial direction, and does not protrude at least toward the front side in the axial direction.
The cluster housing 31 is mounted in a position to conceal half of the neutral point box 24 and expose the remaining half. At this time, the rear end surface of the cluster housing 31 abuts against the front end of the protruding plate 32 and the front end of the protruding portion 34. In addition, the neutral point is inserted into the neutral point box 24 from an exposed area that is not hidden by the cluster housing 31.
In this way, the neutral point box 24 is fitted into the insulator 22 and pressed by the cluster housing 31, thereby restricting the position in the axial direction and the direction orthogonal to the axial direction.
Action
Next, the main operational effects of one embodiment will be described.
Although it is conceivable to mount the neutral point tank 24 to a part of the insulator 22, there is a possibility that the neutral point tank 24 may be enlarged due to arrangement thereof.
Therefore, the neutral point box 24 is fitted to the insulator 22 so as not to protrude to the cluster housing 31 side. This makes it possible to suppress an increase in the axial dimension. Since the dead space is originally formed between the protruding plate 32 and the protruding portion 34 of the insulator 22 on the rear side in the axial direction of the cluster housing 31, the dead space can be effectively utilized. The neutral point tank 24 is arranged between the protruding plate 32 and the protruding portion 34, and is pressed by the cluster housing 31. Therefore, the position of the center box 24 in the axial direction and the direction orthogonal to the axial direction can be restricted.
When the neutral point case 24 is fitted to the insulator 22, the eave 41 is fitted to the recess 33 of the protruding plate 32. In this way, the position of the central point box 24 in the axial direction and the direction orthogonal to the axial direction can be restricted because the eave portion 41 of the central point box 24 is supported by the concave portion 33 of the insulator 22. The protruding plate 32 is also formed on the existing insulator 22 for the purpose of mounting the cluster housing 31. Therefore, since the conventional protruding plate 32 can be utilized, no significant design change is required.
Further, the leg 42 abuts against the reference surface 35. In this way, the leg portion 42 of the center box 24 is supported by the reference surface 35 of the insulator 22, and therefore, the position in the axial direction of the center box 24 can be restricted, and the posture can be stabilized. The protrusion 34 is also formed on the conventional insulator 22 for the purpose of locking the coil 23. Therefore, since the conventional protrusion 34 can be directly used, a large design change is not required.
The insulator 22 is divided into twelve pieces so that the insulator 22 can be attached to each slit, and the neutral point box 24 is fitted to a part of the insulator 22. If the insulator 22 to which the neutral point tank 24 is attached is molded separately from the insulator 22 to which the neutral point tank 24 is not attached, the cost increases, and the component management becomes complicated.
Therefore, the insulator 22 to which the neutral point tank 24 is attached and the insulator 22 to which the neutral point tank 24 is not attached are all set to the same shape. This can suppress an increase in cost and simplify component management.
In addition, the neutral point is accommodated in the neutral point box 24 and fixed by the molded resin. Thereby, the neutral point can be firmly supported.
Further, since the cluster housing 31 is fitted to the adjacent two insulators 22, the positions in the axial direction and the direction orthogonal to the axial direction can be effectively restricted.
Modification of the invention
In one embodiment, the cluster housing 31 in which three-phase connector members are integrated is described, but the present invention is not limited thereto. The connector members of the respective phases may be formed separately.
In the embodiment, the three-phase ac motor 13 is described, but the present invention is not limited to this, and may be single-phase ac.
In the above embodiment, the scroll-type electric compressor has been described, but the present invention is not limited to this, and can be applied to any electric compressor such as a swash plate type compressor.
While the present invention has been described with reference to a limited number of embodiments, the scope of the claims is not limited to them, and modifications to the disclosed embodiments will be apparent to those skilled in the art.
(Symbol description)
21..Stator core, 22..insulator: 23. coil, coil 21..stator core, 22..insulator, 23..coil, a magnetic core, a magnetic coil, a magnetic core neutral point box, 25 rotation axis inverter housing, 27, drive circuit, 28, power-on terminal, 31, cluster case, 32, protruding plate, 33, recess, 34, protruding part, 35, reference surface, 41, eave, 42, leg.

Claims (5)

1.一种电动压缩机，其特征在于，包括：1. An electric compressor, comprising: 多个卷框构件，多个所述卷框构件包括在电动机的定子中，并且针对每个卷绕有线圈的切槽单独地成型；a plurality of winding frame members, the plurality of winding frame members being included in a stator of the motor and being individually formed for each slot around which the coil is wound; 连接器构件，所述连接器构件嵌合于所述卷框构件中的电动机轴向的前端，并且连接有通电端子；以及a connector member that is fitted into the front end of the motor axial direction of the winding frame member and is connected to a power supply terminal; and 收容构件，所述收容构件收容有所述线圈的中性点，并配置于所述连接器构件中的电动机轴向的后侧，并且以不比所述卷框构件中的电动机轴向的前端更向所述连接器构件一侧突出的方式嵌合于所述卷框构件中的电动机轴向的前端侧，a receiving member, the receiving member receiving the neutral point of the coil, being arranged at the rear side of the motor axial direction in the connector member, and being fitted to the front end side of the motor axial direction in the winding frame member in a manner not to protrude further toward the connector member than the front end of the motor axial direction in the winding frame member, 所述卷框构件包括突出板，所述突出板朝向电动机轴向的前侧突出，并且在与所述连接器构件抵接的前端形成有凹部，The winding frame member includes a protruding plate that protrudes toward the front side in the axial direction of the motor and has a recessed portion formed at a front end that abuts against the connector member. 所述收容构件包括檐部，所述檐部沿与电动机轴向正交的方向突出，并且与所述凹部嵌合。The housing member includes a flange portion that protrudes in a direction orthogonal to the axial direction of the motor and is fitted into the recess. 2.如权利要求1所述的电动压缩机，其特征在于，2. The electric compressor according to claim 1, characterized in that: 所述卷框构件包括突起部，所述突起部从基准面朝向电动机轴向的前侧突出，并且在基端侧供所述线圈的一端侧卡定，The winding frame member includes a protrusion that protrudes from the reference surface toward the front side in the axial direction of the motor and is provided at a base end side for locking one end side of the coil. 所述收容构件包括腿部，所述腿部朝向电动机轴向的后侧突出，并且所述腿部的前端与所述基准面抵接。The housing member includes a leg portion that protrudes toward the rear side in the axial direction of the motor, and a front end of the leg portion abuts against the reference surface. 3.如权利要求1或2所述的电动压缩机，其特征在于，3. The electric compressor according to claim 1 or 2, characterized in that: 所述收容构件嵌合于一部分的所述卷框构件中的电动机轴向的前端侧，The receiving member is fitted into a front end side of a portion of the winding frame member in the axial direction of the motor. 嵌合有所述收容构件的所述卷框构件和未嵌合所述收容构件的所述卷框构件全部都是相同形状。The roll frame member to which the storage member is fitted and the roll frame member to which the storage member is not fitted all have the same shape. 4.如权利要求1或2所述的电动压缩机，其特征在于，4. The electric compressor according to claim 1 or 2, characterized in that: 所述中性点被收容于所述收容构件并由模制树脂固定。The neutral point is accommodated in the accommodation member and fixed by a mold resin. 5.如权利要求3所述的电动压缩机，其特征在于，5. The electric compressor according to claim 3, characterized in that: 所述中性点被收容于所述收容构件并由模制树脂固定。The neutral point is accommodated in the accommodation member and fixed by a mold resin.
CN202080013109.2A 2019-02-12 2020-01-10 Electric compressor Active CN113424405B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019-022573 2019-02-12
JP2019022573A JP7210311B2 (en) 2019-02-12 2019-02-12 electric compressor
PCT/JP2020/000621 WO2020166245A1 (en) 2019-02-12 2020-01-10 Electric compressor

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CN113424405A CN113424405A (en) 2021-09-21
CN113424405B true CN113424405B (en) 2024-11-29

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CN202080013109.2A Active CN113424405B (en) 2019-02-12 2020-01-10 Electric compressor

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JP (1) JP7210311B2 (en)
CN (1) CN113424405B (en)
DE (1) DE112020000778T5 (en)
WO (1) WO2020166245A1 (en)

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CN108702052A (en) * 2016-02-08 2018-10-23 日本电产株式会社 Stator, motor and compressor

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JPH0622484A (en) 1992-07-01 1994-01-28 Matsushita Electric Ind Co Ltd Motor stator
JP5637112B2 (en) * 2011-09-27 2014-12-10 株式会社豊田自動織機 Electric compressor
JP5936932B2 (en) * 2012-06-21 2016-06-22 アイチエレック株式会社 Electric motor and compressor
JP6282506B2 (en) 2014-03-26 2018-02-21 サンデンホールディングス株式会社 Electric compressor
JP6368598B2 (en) * 2014-09-16 2018-08-01 日立ジョンソンコントロールズ空調株式会社 Rotating electric machine stator, compressor and air conditioner
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CN108702052A (en) * 2016-02-08 2018-10-23 日本电产株式会社 Stator, motor and compressor
JP2018133866A (en) * 2017-02-14 2018-08-23 日本電産サンキョー株式会社 Motor and pump device
CN108626120A (en) * 2017-03-20 2018-10-09 日立江森自控空调有限公司 Motor compressor

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JP2020129944A (en) 2020-08-27
JP7210311B2 (en) 2023-01-23
WO2020166245A1 (en) 2020-08-20
DE112020000778T5 (en) 2021-12-02
CN113424405A (en) 2021-09-21

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