WO2015172599A1 - Moteur et son procédé de fabrication, et dispositif d'entraînement de véhicule - Google Patents

Moteur et son procédé de fabrication, et dispositif d'entraînement de véhicule Download PDF

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Publication number
WO2015172599A1
WO2015172599A1 PCT/CN2015/073710 CN2015073710W WO2015172599A1 WO 2015172599 A1 WO2015172599 A1 WO 2015172599A1 CN 2015073710 W CN2015073710 W CN 2015073710W WO 2015172599 A1 WO2015172599 A1 WO 2015172599A1
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WO
WIPO (PCT)
Prior art keywords
terminal
motor
ring
busbar
wire
Prior art date
Application number
PCT/CN2015/073710
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English (en)
Chinese (zh)
Inventor
赞姆泽⋅西维奥
刘兴芬
瓦根布莱特⋅马库斯
Original Assignee
舍弗勒技术股份两合公司
赞姆泽⋅西维奥
刘兴芬
瓦根布莱特⋅马库斯
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 舍弗勒技术股份两合公司, 赞姆泽⋅西维奥, 刘兴芬, 瓦根布莱特⋅马库斯 filed Critical 舍弗勒技术股份两合公司
Publication of WO2015172599A1 publication Critical patent/WO2015172599A1/fr

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    • 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
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto

Definitions

  • the present invention relates to the field of automotive technology, and in particular to a motor, a method of manufacturing the same, and a vehicle drive device.
  • a motor is an electromagnetic device that converts electrical energy into mechanical energy and mechanical energy into electrical energy.
  • Existing electric machines generally include: stator windings and wiring components. One end of the wiring component is used to electrically connect to an external circuit to supply current to the stator windings.
  • a wiring component of a conventional motor includes: in conjunction with FIG. 2, a busbar ring 1 is electrically connected to a wire end of a stator winding (not shown), and an axial side of the busbar ring 1 has an edge.
  • the axially extending fixed end 10; the terminal 2, one end is fixedly connected with the fixed end 10 of the busbar ring 1 by a mechanical connection process (such as bolting, welding or riveting, in the figure, a bolted connection) to realize the terminal 2
  • a mechanical connection process such as bolting, welding or riveting, in the figure, a bolted connection
  • the motor In the working environment, the motor not only generates vibration but also thermal shock, causing an air gap between the bus ring 1 and the terminal 2 at the connection contact surface, resulting in poor connection between the bus ring 1 and the terminal 2. Therefore, the resistance value at the junction of the bus ring 1 and the terminal 2 is increased.
  • the motor When the motor is energized, a large amount of heat is generated at the junction of the bus ring 1 and the terminal 2, and the motor may be burned out.
  • busbar ring 1 and the terminal 2 are two separate components, the two are separately manufactured, resulting in more waste and increased manufacturing cost of the motor.
  • the manufacturing method of the above motor comprises: packaging the terminal 2, so that one end of the terminal 2 for electrically connecting to the external circuit is covered with an insulating material; then, the stator and the bus ring 1 of the motor are packaged to remove the bus ring 1 The portion outside the fixed end 10 is covered by an insulating material (such as a resin); then, the bus ring 1 is fixedly connected to the terminal 2 by a mechanical joining process; finally, the connection between the bus ring 1 and the terminal 2 is packaged to make wiring The exposed portion of the terminal 2 and the fixed end 10 of the busbar ring 1 are covered with an insulating material.
  • One of the problems to be solved by the present invention is that the mechanical connection between the bus bar and the terminal in the wiring component of the prior art motor is not reliable, and an air gap may be generated at the connection contact faces of the two.
  • Another problem to be solved by the present invention is that the structure of the existing motor is not sufficiently compact.
  • Another problem to be solved by the present invention is that more waste is generated when the bus bar and the terminal of the existing motor are fabricated.
  • an electric motor comprising: a stator winding; a wiring component electrically connected to a wire end of the stator winding;
  • wiring component comprises:
  • busbar ring electrically connected to the wire end of the stator winding
  • the busbar ring is integrally formed with the terminal.
  • the stator winding is a three-phase winding, the number of the bus ring and the terminal is three, three of the bus rings are spaced apart, and the three terminals are arranged at intervals;
  • stator windings are electrically connected to the three busbar rings in a star connection or a delta connection.
  • busbar rings are coaxially sleeved, and three of the terminals are circumferentially spaced along any of the busbar rings.
  • the integrally formed bus bar ring and the connecting terminal are bent by a wire.
  • the wire is a copper wire.
  • busbar ring and the terminal block are integrally formed in the wiring component, even if the motor is affected by vibration and thermal shock, the busbar ring and the terminal are always integrated, and there is no busbar ring and the terminal at the connection contact surface. There is a problem of an air gap between the two, and there is no problem that the resistance value at the junction increases due to an air gap between the connection surface of the bus bar and the terminal.
  • bus bar ring and the terminal block are integrally formed in the wiring member, it is not necessary to use the bus bar ring and a part of the terminal terminal to fix the connection bus bar ring and the terminal terminal, thereby reducing the space occupied by the wiring member and making the structure of the motor. More compact.
  • busbar ring and the terminal are integrally formed, and the two are not separately manufactured, which reduces the waste generated when the busbar ring and the terminal are made, and improves the utilization rate of the manufacturing raw materials.
  • a further problem to be solved by the present invention is that the manufacturing cost of the existing motor is high.
  • the present invention provides a method of manufacturing a motor, comprising:
  • stator winding of the stator is embedded with a stator winding
  • Providing wiring components including: forming a bus ring and a terminal by an integral molding process;
  • a package is performed to cover the insulating material on the terminal.
  • the integrally formed bus bar ring and the connecting terminal are formed by bending a wire.
  • the wire is a copper wire.
  • the present invention provides a vehicle driving device comprising the motor of any of the above.
  • the vehicle driving device is a hybrid driving device, a hub assembly or an electric drive axle.
  • 1 is a schematic plan view showing a wiring structure of a conventional motor
  • FIG. 2 is a perspective view showing the structure of the bus bar in the wiring member shown in Figure 1;
  • FIG. 3 is a schematic perspective view of a three-dimensional structure of a wiring component of a motor according to an embodiment of the present invention
  • Figure 4 is a perspective view of the wiring structure of the motor in one embodiment of the present invention.
  • Figure 5 is a partial enlarged view of the P region of Figure 4.
  • FIG. 6 is a schematic perspective view of the wiring component shown in FIG. 3 after being packaged
  • Fig. 7 is a perspective view showing the assembled wiring member shown in Fig. 6 assembled on the stator.
  • the present embodiment provides an electric motor including: a stator winding (not shown); and a wiring member 1 electrically connected to a wire end of the stator winding.
  • wiring component 1 comprises:
  • busbar ring 10 electrically connected to a wire end of the stator winding
  • a terminal 20 for electrically connecting to an external circuit (not shown);
  • the bus bar 10 is integrally formed with the terminal 20.
  • the bus bar 10 in the wiring component 1 is integrally formed with the terminal 20, even if the motor is subjected to vibration and thermal shock during operation, the bus ring 10 and the terminal 20 are always integrated, and the bus ring 10 and the wiring are not present.
  • the terminal 20 has a problem of an air gap between the contact faces, and there is no problem that the resistance value at the junction increases due to an air gap occurring between the connection faces of the bus bar 10 and the terminal 20.
  • bus bar 10 is integrally formed with the terminal 20, it is not necessary to use the bus ring 10 and a part of the terminal 20 to fix the bus bar 10 and the terminal 20, thereby reducing the space occupied by the wiring member 1 and making the motor
  • the structure is more compact.
  • bus bar 10 is integrally formed with the terminal 20, which reduces the waste generated when the bus ring 10 and the terminal 20 are formed, and improves the utilization rate of the manufacturing raw materials.
  • the stator winding is a three-phase winding
  • the number of the bus ring 10 and the terminal 20 is three
  • three bus rings 10 are arranged at intervals
  • three terminals 20 are arranged at intervals
  • the stator windings are arranged according to The star connection or the delta connection is electrically connected to the three bus bar rings 10.
  • three bus bar rings 10 are coaxially sleeved, and three terminal blocks 20 are circumferentially spaced along any of the bus bar rings 10 to reduce the space occupied by the wiring member 1.
  • three bus rings 10 and three terminals 20 are also available. Arranged in other ways.
  • the integrally formed bus bar 10 and the terminal 20 are bent by wires.
  • the wire is a copper wire because the copper wire has good electrical conductivity and is moderately priced.
  • the wires may also be wires of other materials, such as silver wires, gold wires, aluminum wires, and the like.
  • the busbar ring 10 is open-loop, that is, the busbar ring 10 is not fully enclosed, and the terminal 20 extends from one of the ends of the busbar ring 10 to the outside of the busbar ring 10.
  • the busbar ring 10 can also be a closed loop.
  • the ends of the stator windings are soldered to the busbar ring 10 to effect electrical connection between the ends of the stator windings and the busbar ring 10.
  • a fork joint 11 can be provided on the busbar ring 10 for electrically connecting the wire ends of the stator windings, and the wire ends of the stator windings are welded to the fork joint 11.
  • one end of the terminal 20 for electrical connection with the external circuit is fixedly coupled to an insert nut 30.
  • the terminal 20 and the external circuit can be electrically connected by bolting.
  • the motor may only have the function of an electric motor, that is, only electric energy can be converted into mechanical energy; the electric motor may also only have the function of a generator, that is, only other energy can be Converted into electrical energy; the motor can also have the function of both the motor and the generator, that is, it can convert electrical energy into mechanical energy and convert other energy into electrical energy.
  • the manufacturing method includes:
  • stator 50 As shown in FIG. 7, the stator 50 is provided, and stator windings (not shown) are embedded in the slots of the stator core of the stator 50;
  • the wiring component 1 is provided, including: using an integral molding worker Forming the bus ring 10 and the terminal 20;
  • the encapsulation is performed to cover the insulating material 40 on the bus bar 10, but the position on the bus bar 10 partially for electrically connecting to the wire ends of the stator winding is not covered by the insulating material 40. That is, the fork joint 11 on the busbar ring 10 is not covered by the insulating material;
  • the wire ends of the stator windings are electrically connected to a position on the bus bar ring 10 that is not partially covered by the insulating material 40, that is, the wire ends of the stator windings are electrically connected to the fork joints 11 on the bus bar ring 10. ;
  • packaging is performed to cover the insulating material on the terminal 20.
  • the step of encapsulating the bus bar 10 and electrically connecting the wire ends of the stator windings to the bus bar 10 is collectively referred to as encapsulating the stator and the bus bar 10.
  • the motor manufacturing method of the technical solution of the present invention has the following advantages:
  • the terminal 20 can be directly packaged so that the terminal 20 is insulated with a material (such as a resin). ) 40 coverage.
  • a material such as a resin
  • the three busbar rings 10 are separated by an insulating material 40, and the three terminals 20 are separated by an insulating material 40.
  • the insulating material 40 may also be covered on the surface of the embedded nut 30 such that the insert nut 30 is fixedly coupled to one end of the terminal 20.
  • the integrally formed bus bar 10 and the terminal 20 are formed by bending a wire. Specifically, prepare a length of appropriate a wire, one end of which is bent into a step shape and used as a terminal 20; then, the remaining portion of the wire is bent so as to be perpendicular to the terminal 20 and the axis of the bus bar 10, and then the wire is The remaining portion is bent into a ring shape and used as the bus ring 10.
  • the busbar ring 10 and the terminal block 20 can be simultaneously formed by directly bending a pair of off-the-shelf wires without the need of raw materials. After the partial cutting, the remaining portion is used to form the bus ring 10 and the terminal 20, which improves the manufacturing raw material utilization rate of the bus ring 10 and the terminal 20, and reduces the manufacturing cost of the motor.
  • the stator 50 of the motor is sleeved in a rotor (not shown).
  • the bus bar 10 is placed on the end surface of the stator 50. Upper, and the terminal 20 is located radially outward of the stator 50.
  • stator of the electric machine can also be sleeved outside the rotor.
  • the busbar ring can be sleeved outside the stator.
  • the present invention also provides a driving device for a vehicle comprising the above-described electric machine capable of providing a power source for driving of the automobile.
  • the vehicle driving device is a hybrid driving device, a hub assembly or an electric drive axle.
  • the hybrid drive device may be a parallel hybrid drive device, a series hybrid drive device, or a hybrid hybrid drive device.
  • the hybrid drive device includes, in addition to the above-described electric machine, an engine, a battery, a motor controller, a transmission, and the like.
  • the hub assembly includes, in addition to the above-described motor, a hub, a motor controller, and the like.
  • the electric drive axle includes, in addition to the above-mentioned motor, a final drive, a differential, a wheel transmission, and a transaxle case.
  • the vehicle driving device may also be other devices capable of providing a power source for the automobile driving, and should not be limited to Give the example.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

L'invention concerne un moteur et son procédé de fabrication, et un dispositif d'entraînement de véhicule; le moteur comprend un enroulement de stator, et un composant de câblage connecté électriquement à l'extrémité de fil de l'enroulement de stator; le composant de câblage comprend une bague de barre omnibus connectée électriquement à l'extrémité de fil de l'enroulement de stator, et une borne de câblage pour se connecter électriquement à un circuit externe; et la bague de barre omnibus et la borne de câblage sont formées d'un seul tenant. La solution technique de la présente invention résout les problèmes de connexion mécanique non fiable entre la bague de barre omnibus et la borne de câblage dans le composant de câblage d'un moteur existant, d'une possible occurrence d'espaces d'air sur la surface de contact entre la bague de barre omnibus et de la borne de câblage, d'un manque de compacité de la structure des moteurs existants, et des coûts de fabrication élevés des moteurs existants.
PCT/CN2015/073710 2014-05-12 2015-03-05 Moteur et son procédé de fabrication, et dispositif d'entraînement de véhicule WO2015172599A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410197969.2 2014-05-12
CN201410197969.2A CN105099036A (zh) 2014-05-12 2014-05-12 电机及其制造方法、车用驱动装置

Publications (1)

Publication Number Publication Date
WO2015172599A1 true WO2015172599A1 (fr) 2015-11-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019219256A1 (fr) * 2018-05-17 2019-11-21 Magna Powertrain Bad Homburg GmbH Machines électriques et fabrication d'une machine électrique
US20220231562A1 (en) * 2021-01-19 2022-07-21 Schaeffler Technologies AG & Co. KG Compact busbar assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6863167B2 (ja) * 2017-08-10 2021-04-21 トヨタ自動車株式会社 回転電機ステータ
DE102019103191A1 (de) * 2019-02-08 2020-08-13 Schaeffler Technologies AG & Co. KG Stator für eine elektrische Maschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103107625A (zh) * 2011-11-09 2013-05-15 三菱电机株式会社 旋转电机及其定子线圈的接线单元的制造方法
CN103368304A (zh) * 2012-03-30 2013-10-23 日立汽车系统株式会社 车载用电动机及使用了该车载用电动机的电动动力转向装置
CN103532280A (zh) * 2012-06-20 2014-01-22 法雷奥电机设备公司 用于电机定子的连接器和相关的电机定子

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DE19920127C2 (de) * 1999-05-03 2001-05-31 Mannesmann Sachs Ag Stator für eine elektrische Maschine und Verfahren zur Herstellung eines Stators
JP3733312B2 (ja) * 2001-10-26 2006-01-11 住友電装株式会社 車両用薄型ブラシレスモータの集中配電部材に用いるバスバーの製造方法
KR101163475B1 (ko) * 2010-03-08 2012-07-18 현대자동차주식회사 하이브리드 차량의 구동모터용 터미널 장치
JP2012044854A (ja) * 2010-08-13 2012-03-01 Hyundai Motor Co Ltd モータユニット、およびこれを備えた車両

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103107625A (zh) * 2011-11-09 2013-05-15 三菱电机株式会社 旋转电机及其定子线圈的接线单元的制造方法
CN103368304A (zh) * 2012-03-30 2013-10-23 日立汽车系统株式会社 车载用电动机及使用了该车载用电动机的电动动力转向装置
CN103532280A (zh) * 2012-06-20 2014-01-22 法雷奥电机设备公司 用于电机定子的连接器和相关的电机定子

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019219256A1 (fr) * 2018-05-17 2019-11-21 Magna Powertrain Bad Homburg GmbH Machines électriques et fabrication d'une machine électrique
US20220231562A1 (en) * 2021-01-19 2022-07-21 Schaeffler Technologies AG & Co. KG Compact busbar assembly
US11942848B2 (en) 2021-01-19 2024-03-26 Schaeffler Technologies AG & Co. KG Compact busbar assembly

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