CN110050405A - The stator of motor, motor and wiring and contact device for motor - Google Patents

The stator of motor, motor and wiring and contact device for motor Download PDF

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Publication number
CN110050405A
CN110050405A CN201780076216.8A CN201780076216A CN110050405A CN 110050405 A CN110050405 A CN 110050405A CN 201780076216 A CN201780076216 A CN 201780076216A CN 110050405 A CN110050405 A CN 110050405A
Authority
CN
China
Prior art keywords
stator
wiring
contact
motor
coil
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.)
Withdrawn
Application number
CN201780076216.8A
Other languages
Chinese (zh)
Inventor
马丁·霍夫曼
斯特凡·维斯特
托马斯·齐格勒
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.)
Brose Fahrzeugteile SE and Co KG
Original Assignee
Brose Fahrzeugteile SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE102016224526.0A priority Critical patent/DE102016224526A1/en
Priority to DE102016224526.0 priority
Application filed by Brose Fahrzeugteile SE and Co KG filed Critical Brose Fahrzeugteile SE and Co KG
Priority to PCT/EP2017/081767 priority patent/WO2018104418A1/en
Publication of CN110050405A publication Critical patent/CN110050405A/en
Withdrawn legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/46Fastening of windings on the stator or rotor structure
    • H02K3/52Fastening salient pole windings or connections thereto
    • H02K3/521Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/522Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K11/00Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30Structural association with control circuits or drive circuits
    • H02K11/33Drive circuits, e.g. power electronics
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2203/00Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/03Machines characterised by the wiring boards, i.e. printed circuit boards or similar structures for connecting the winding terminations
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2203/00Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/09Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations

Abstract

The present invention relates to the stator of motor (98) (10), stator (10) especially for the motor (98) of motor vehicle, stator (10) has: stator stack (25), and stator stack has several stator tooths (16) being directed inwardly toward;Be arranged on stator tooth (16) include multiple phases (U, V, W, U ', V ', W ') rotating field winding (34), wherein, each phase (U, V, W, U ', V ', W ') includes at least one coil (30), and coil has the first and second end turns (36);Contact device (38, 38 ', 38 "), contacting device includes the wire element (42) and the wiring element (44) for being used to make end turn (36) with phase connector (40) wiring on stator end side being placed on the wire element that end side is placed on stator stack (25), wherein, end turn (36) extend perpendicularly through wire element (42) connect opening (48) and respectively radially bently along guiding groove (54) guidance of wire element (42) and on the contact site (56) of guiding groove (54) by the contact element (46) with wiring element (42) conductive attachment by axially contact and fixed, and wherein, guiding groove (54) is respectively provided with narrow positions (58) on (M) in the axial direction, narrow positions (58) blocks difference The end turn (36) guided in guiding groove (54), it is axially sliding to prevent.

Description

The stator of motor, motor and wiring and contact device for motor
Technical field
The present invention relates to the stators of motor, especially the stator for the motor of motor vehicle, and stator has stator stack, Stator stack has several stator tooths, and rotating field winding including multiple phases of the stator with arrangement on the stator teeth, Wherein, each phase includes at least one coil, and coil has the first and second end turns, and stator also has for contacting and consolidating Determine the contact device of end turn.The present invention additionally relates to the motor with such stator, and the wiring for this kind of motor With contact device.Motor is hereinafter especially understood to electric motor, is especially used for the electric motor in power-assisted steering portion.
Background technique
Currently, many motor vehicles have power-assisted steering portion, power-assisted steering portion is reduced in static or in low vehicle speed condition Steering force needed for operating steering wheel when middle steering.Support motor vehicle when turning in the following way herein in power-assisted steering portion User supports the steering force of motor vehicle user application for example with hydraulic system or electric motor.
In the case where electric motor power-assisted steering portion (EPS:Electric Power Steering (electric powered steering), EPAS:Electric Power Assisted Steering (electronic assisted diversion)), it is arranged in the mechanical device of steering wheel Electric motor on (steering column, steering gear) is supported with generated auxiliary force and is superimposed turning for motor vehicle user To movement.For the driving of this kind of electric motor, so-called brushless electric motor (brushless direct-current horse is increasingly continually used Reach, BLDC motor), wherein the electricity easy to wear of the commutator of rigidity (machinery) is replaced by the electronic commutation of motor current Brush element.
Such brushless electric motor has fixed (static) stator as (rotation) motor in principle, and stator is with fixed Sub- stack of laminations, stator stack have the stator tooth of several such as star arrangements.Stator tooth has in individual (stator) coil Or the rotating field electricity winding of coil windings (phase winding) form, rotating field electricity winding itself are wound by insulated wire (winding wire) again At.Phase winding with its end turn or phase end is associated with each (motor) branch or (motor) mutually and each other with pre- First determining martingale.
In the case where brushless electric motor is as three-phase rotating electric machine, there are three mutually and therefore have at least for stator tool Three phase conductors or phase winding, phase conductor or phase winding are applied in a manner of being staggered respectively generates rotary magnetic with electric current , the rotor or mover for being typically provided with permanent magnet rotate in rotating excitation field.Drawn by phase connector the phase end of stator winding It leads on motor electronic device to control electric motor.The coil windings of rotating field winding are herein by end turn with determination Mode is by mutual wiring.The mode of connection of end turn is determined by the winding scheme or winding construction of rotating field winding, wherein Winding scheme is usually star-star connection, delta connection or their combination.
It is commonly used in the guidance and wiring of end turn in the contact device that stator end side is placed on stator.Such contact Device for example with wiring grommet and the connecting ring that can be placed on wiring grommet, is set between wiring grommet and connecting ring with sandwich like way Enter the end turn to wiring.
In order to realize different winding schemes as flexibly as possible, for example, can will contact device as modular assembly Implement, so that different contact devices is placed on stator with desired wiring according to application.Particularly, wish to revolve wherein In the application of the wiring of a redundancy or multiple redundancy for transition winding, the contact device of this kind of module adversely has relatively High structure space requires (encapsulation), geometrically reliably to show wiring.
In addition, such contact device has relatively high component complexity, wherein each manufacturing tolerance phase of multiple components Add.The tolerance in terms of the desired oplimal Location on stator can only be realized with relatively high at original as a result,.
A kind of electric motor known from 2 082 472 B1 of EP, wherein the coil of the circular ring shape of arrangement two end sides Bracket is placed on stator, on coil winding wound to coil brace.Between two adjacent stator tooths, in stator slot It is disposed with hook-shaped or eyelet-like tightening member, applies the connection line between coil on the stator teeth and is linked into and conductively connects It refutes in tightening member.Tightening member couples with the pressure pin as contact element, and pressure pin is pressed into as connecting ring To be contacted in annular circuit board (printed circuit board).In this case, circuit board have several loop lines to By winding wiring to rotating field winding.
2 182 616 A2 of EP describes band, and there are two be placed to the electricity of the coil brace of the circular ring shape on stator in end side Dynamic motor, wherein one of coil brace has several positioning auxiliary portions, can be positioned by positioning auxiliary portion and be equipped with rotation position Set the connecting ring of sensor (rotor-position sensor).Here, positioning auxiliary portion be embodied as radial directed cut clip contact portion Form, wherein the phase end of coil is put into the clamping of coil brace cut in clip contact portion, and pass through connecting ring Connector carrys out wiring.
Summary of the invention
Task of the invention lies in provide specially suitable stator.Furthermore task of the invention is to provide equipped with such fixed Sub motor and the wiring for motor and contact device.
This task is solved according to the present invention in terms of stator with the feature of claim 1, and in terms of electric motor with The feature of claim 11 solves, and is solved in terms of being routed and contacting device with the feature of claim 13.It is advantageous to set Meter scheme and improvement project are the themes of each dependent claims.
Stator according to the present invention is adapted and configured to as motor, especially in motor vehicle electric or The motor in electric motor power-assisted steering portion.For this purpose, stator includes being especially the groups of stator stack of punching press, stator stack With several stator tooths being for example directed inwardly toward.Stator tooth is equipped with multiphase rotating field winding, wherein each phase includes at least one Coil or coil windings (phase winding) with the first and second end turns.Here, coil is arranged especially as unicoil On each stator tooth.As an alternative it is conceivable that twin coil or multiple coil, their coil windings be mounted to two or On more stator tooths.
In order to be routed, be contacted to the end turn for rotating field winding and wiring, it is provided with illustrative annulus The contact device of shape.Contact device, which has, is placed to the wire element (wiring grommet) in stator stack for guide line in end side Enclose end.Wiring element (connecting ring) is placed on wire element connect end turn with the phase connector on stator end side Line.
Wire element connects opening with quantity corresponding with the quantity of end turn, connects opening and each leads into diameter To and/or tangentially extending guiding groove in.In other words, guiding groove can be in a manner of radially or tangentially extending or radial direction and to cut It is introduced into wire element to the mode of extension.
Guiding groove especially has generally V-shaped or U-shaped cross-sectional shape, and as open recessed in wiring element side Portion is introduced in wire element.End turn is herein vertically, it means that along the axial direction (axis stator) of stator, wears Cross and connect opening, and particularly radial bending the contact site of guiding groove is directed to along respective guiding groove.End turn Respectively by with the conductively connected contact element of wiring element by axially contact and fixed.Here, guiding groove is respectively in axial direction There is narrow positions, narrow positions blocks end turn that is being guided in guiding groove respectively or being placed into prevent on direction It is axially sliding.
As a result, especially with regard to the wiring of end turn and phase or rotating field winding, the particularly simple of stator is realized Installation.In addition, it has been automatically realized the assembly of the axial direction along stator by by means of the axially contact of contact element, by This ensures the particularly convenient and simple splicing of stator.
In assembling stator, opening is connected by what end turn was directed across wire element first, and then make coil-end Turn round along guiding groove to portion radial (and/or tangential).Coil is preferably wound in by the insulated wire (enameled wire) as coil line, End turn is routed in a manner of energy slight curving ground bending along guiding groove.As a result, since there are the elasticity of flexure, lines To enclose end have the trend of axially projecting positioning of springing back to after the bending along guiding groove, so that connecing with wiring element Touching is difficult.This advantageously and is structurally simply avoided by the narrow positions being integrated into guiding groove.
Therefore, narrow positions ensures for end turn to be maintained in the plane of guiding groove to be used to simply contact.Change speech It, end turn is pressed into guiding groove during bending, it means that the end turn connected narrow positions And therefore preferable shape is held in position in locking manner in guiding groove.In other words, end turn is scarfed in narrow positions, thus narrow Narrow portion steric hindrance stops the movement of end turn in the axial direction.Therefore, even if axially contact period in guiding groove, coil-end Portion is also reliably and safely kept.Therefore, it simplifies the contact with wiring element and therefore simplifies the assembly of stator.Cause And this advantageously influences the manufacturing cost of stator.
It is therefore preferable that the wire element (wiring grommet) for the preferred circular ring shape that the moulding as single-piece manufactures is configured to use In the machinery mount and setting element of end turn.It connects opening to be preferably introduced in wiring grommet in radially inner side, wherein draw Guide groove is directed toward the contact site in particularly radial outside.It can be realized as a result, by means of contact element particularly convenient and simple Contact.
Guiding groove is supported and guides the coil line for being especially implemented as insulated wire of end turn.In addition, end turn is logical The guidance crossed in guiding groove is insulated relative to stator and/or electric motor conductive component.For example, therefore end turn exists It insulate in electric motor relative to motor shell and/or bearing cap.
In the region of the wiring element (connecting ring) of especially circular ring shape, it is preferably arranged with for detecting electric motor Rotor rotation position or Angle Position rotor-position sensor.Limit is ensured by connecting ring and the axially contact of wiring grommet Fixed orientation, this is conducive to the positioning of rotor-position sensor.Hereby it is achieved that be conducive to the rotor-position sensor of commutation Specially suitable arrangement.Rotor-position sensor is for example embodied as Hall sensor.Furthermore thinkable to be, in the area of connecting ring Other (scene) sensing mechanism and additional function of the arrangement for the state confirmation of motor in domain, such as detecting motor temperature The temperature sensor of degree or stator temperature.
In suitable embodiment, stator stack includes that stator star and the hollow cylindrical squeezed with stator astrology are determined Sub- yoke, wherein the stator tooth (radially) of stator star is outwardly.Hereby it is achieved that simple and cheap stator.It was installing Stator yoke herein first from outside with coil winding wound stator tooth, and is then pressed on stator star by Cheng Zhong.In other words, exist In splicing during extrusion process, stator star and stator yoke equipped with coil are mutually spliced, and are determined to be formed and be in Connecting portion between the tooth top and stator yoke of sub- tooth.Stator tooth can be had easy access to during winding as a result, is simplified with this It is equipped with coil windings or phase winding.
In suitable improvement project, narrow positions extend into the holding protrusion in guiding groove by the two sides in guiding groove It is formed.Therefore, protrusion is kept at least partly to overlap the opening of the connecting ring side of guiding groove, thus the span width of guiding groove is fitted Locality decreases below the value of the linear diameter of end turn to be held.Hereby it is achieved that the extremely simple of end turn and The sealed holding of advantageous shape.
According to advantageous embodiment, coil is respectively provided with coil windings or phase winding, they, which are applied to be placed to, determines On coil brace (coil case) on sub- tooth.In other words, the coil windings for forming coil surround the respective stator tooth of wrapping respectively Coil brace wind.It is preferred that the coil brace being made of insulating material is, for example, single-piece or multi-piece type, such as rectangle Tube section.Coil brace preferably has (being directed toward perpendicular to tooth longitudinal direction) flange circle of end side, between flange circle Winding space present in bound.Therefore, coil brace prevents rotating field winding from skidding off from the tooth of stator.Here, for example can It is contemplated that first as individually segmentation wound around coil bracket, and be then placed on stator tooth.In other words, coil It is preferred that being implemented as individual, separated component.
Equally thinkable in the embodiment of alternative is directly to encapsulate one with plastic injection or each stator tooth is used for Formed coil brace or it is thinkable be, wireless coil support with rotating field winding wind stator tooth.
Additional or other aspect regulation of the invention, wire element or wiring grommet the opening that connects are respectively provided with rotation The cylindrical openings of transition winding side, cylindrical openings have the retention groove introduced.In the assembled state, it is especially borrowed in retention groove Flange circle is helped to be placed at least partially into respective coil brace.Wiring grommet is supported on the coil case of stator stack as a result,.It changes Therefore Yan Zhi, coil case have the function of support, this improves tolerance compensating and wiring grommet or contact device in assembling process Press-fit on stator star.It is thus achieved that particularly stable stator.
In suitable design scheme, the wire element of circular ring shape has the inner ring of radially inner side, and inner ring is in assembled state In be at least partly scarfed to wiring element center ring opening in, and radial clamping link element.Therefore, it is routed Element or wiring grommet are arranged to be used for the centering auxiliary part of wiring element or connecting ring.Thereby simplify the installation of stator.
In an advantageous refinement, the inner ring of wire element is implemented with being segmented, with several such as crenel shapes First and second circle teeth.First lap tooth is erect relative to the axial direction towards wiring element of wire element, and in splicing state In be fixedly clamped wire element.Second circle tooth shapes on that side opposite with first lap tooth of wire element, and therefore court It erects in the direction of rotating field winding or stator stack.In the assembled state, the second circle odontoid is scarfed to coil branch in locking manner The receiving portion of the respective radially inner side of frame accommodates in profile, and especially shape is scarfed in locking manner in its flange circle.Thus Ensure the installation of the stabilization of wire element and anti-torsion.
As an alternative it is also envisioned that the flange circle of coil case is equipped with the second circle tooth erect, the second circle tooth is in splicing shape It is scarfed in state in the complementary receiving profile of wire element.As a result, by means of the circle tooth of coil brace in the side of wire element The fastening function of (shape is sealed) is realized upwards.
In suitable embodiment, wiring element or connecting ring are implemented as preferred multilayer, circular or polygon Printed circuit board, the printed circuit board have multiple conductive traces.The conductive traces of printed circuit board will be arranged in connecting ring The outside back to stator stack on phase connector on the opposite inside for being arranged in connecting ring contact element be electrically connected. Hereby it is achieved that extremely simple and compact guidance and wiring of the end turn to phase connector, which ensure that mutually and rotating field around The wiring of the special low cost of group.Form the particularly advantageous distribution network for being used for motor in the assembled state as a result,.
In particularly compact and advantageous embodiment, for example axial stacked on top of conductive traces it is incorporated into for example real It applies in the circuit board for the PCB (printed circuit board, printed circuit board) of circular ring shape.In other words, conductive traces with Multilayer mode is stackedly incorporated into circuit board up and down.Therefore, multilayer and the plane of especially single-piece printed circuit Plate is implemented as the special section space-efficient distribution network for motor or electric motor.Thus reduce the axial space of stator And therefore reduce the axial space of provisioned motor.In addition, the multilayer use by conductive traces significantly improves printing The current-carrying capability of circuit board.As a result, realizing oneself of the raising for design and building in terms of the function in stator By spending.Particularly, therefore in the case where the identical axial extension of stator the fill factor of raising, that is, the line improved are able to achieve The number of turns is enclosed, this is conducive to the ability to work of the motor equipped with stator.
In principle, the number of plies of conductive traces and implementer's case of printed circuit board can differently be implemented.Particularly, lead to The layout or conductive traces trend for crossing suitably selected different wiring variant, especially for the wiring of (multiple) redundancy, It can without a doubt and simply implement, and not need to change the implementation to component in terms of geometric configuration herein.This realizes fixed Son extra high prefabricated degree, this is because wiring element as modular component can according to application and desired wiring more It changes.Hereby it is achieved that particularly flexible and cost advantages stators.
In suitable structural scheme, substantially the wiring element of circular ring shape is ring segment-shaped by several single (segmentation) circles Subring is formed or composition.In other words, connecting ring or wiring element substantially circular ring shape circuit board be divided into multiple subrings or Segmentation.Being radially directed towards and be suitably provided with contact site or connecting element at opposed facing fan wall in subring, by means of Contact site or connecting element are coupled to each other the subring in the splicing association of wiring element mechanically and/or conductively.
According to the scheme that is advantageously improved, contact element is contacted in wire element side structure at for cutting clip with end turn And it is contacted in wiring element side structure at for being pressed into area/with the indentation of wiring element.In other words, contact element is designed as more It re-contacts.It is thus achieved that connection without soldering and few tool and electricity between wire element or end turn and wiring element Contact.Therefore this advantageously causes the reduction that the assembly in stator assembly expends, thus reduce the manufacturing cost of stator.This Outside, the simple and cost-effective contact and fixation of end turn are realized.Particularly, furthermore dirty in residual in stator assembly Dye object requires aspect to realize lower consuming.
In an appropriate manner, also by cutting, clip contacts wiring element and indentation contact is by mechanically and tight reliable for operationly Gu on wire element.
Since contact element is designed as cutting clip contact portion, the assembly of the assembly and therefore stator that contact device is significant Simplify.Particularly, coil or the contact of end turn be simplified, this is because not needing to be directed in assembly and wiring The step of additional removal insulation of the coil line of insulation.
In the improvement project of alternative, it is also able to use laser beam welding, for connecing end turn with phase connector Touching and wiring.Particularly, it is arranged such that contact by indentation in the assembled state in this contact element, can also borrows Soldering or laser welded material is helped to contact in locking manner.
In the preferred embodiment, stator according to the present invention includes contact element, and the contact element has cloth line element The clamping connector of part side clamps the contact seam in the center that connector has for cutting clip contact (high pressure connection).It clamps Connector further includes axial by the face of putting, and wiring element is supported on axial on the face of putting in the assembled state.Clamping grafting There are two at least partly extend arm towards contact seam is curved toward each other for forming at device.Arm is extended according to electric current to be guided Intensity is respectively provided with the pressure pin of at least one wiring element side, wherein the upper edge for extending arm is axially returned relative to by putting face Contracting it is staggeredly arranged.It is thus achieved that particularly advantageous contact element, on the one hand contact element realizes end turn and wiring On the other hand the reliable and safe electrical contact of element facilitates the mechanical support function for assembling and keeping wiring element Energy.
In a preferred application, stator is that the electric for being preferred for motor vehicle or electric motor (electromechanical) power-assisted turn To the part of the motor (especially electric motor) of portion (EPS).Preferred brushless electric motor includes cylindrical motor shell, Motor shell substantially shape accommodates stator in locking manner.Be preferably arranged in a manner of being able to rotate movement within stator rotor and The fixed motor drive shaft of relative rotor.On the other hand and machine on the one hand motor drive shaft for example couples with steering wheel in shaft end side and herein The steering mechanism of motor-car couples.By stator according to the present invention, especially reliable and effective motor is realized.For electronic In the application in the power-assisted steering portion of motor type, motor is preferably embodied with the rotating field winding of multiple redundancy, so that being always to ensure that peace Complete and reliable operation.
In suitable improvement project, the support of bearing of motor shell, especially can-like is plugged into a manner of thermally conductive technology Onto the outside of wiring element (connecting ring).For this purpose, for example thinkable be, the outside of wiring element is by heat-conducting medium (heat-conducting cream, heat conductive pad etc.) is connected on motor shell or the support of bearing in the thermally conductive mode of energy.It is thus achieved that docking line element The part generated simple heat dissipation generated heat in operation, and especially realize motor shell and/or controller for motor On be thermally coupled or heat is plugged into.In other words, printed circuit board or wiring element can radiate by the support of bearing, hence improve The service life of motor.The support of bearing is, for example, the bearing cap of the side B of machine, and bearing cap is with bearing block and is put into bearing block The interior rolling bearing for being used to support motor drive shaft.
Furthermore it is possible to which for example wiring element and the support of bearing are coupled with wire element with thermally conductive technical approach.Particularly, Such as the wire element made of heat-conducting plastic suitably has cooling body function herein.
The present invention additionally relates to a kind of wiring for motor and contact device, and motor has rotating field winding, rotating field Winding has several phases.Here, each phase includes at least one coil with the first and second end turns.Wiring and contact Device is embodied as the wire element with guidance and wiring for end turn and with the end turn for making motor With the wiring element of phase connector wiring.
In the assembled state, what end turn extended perpendicularly through wire element connects opening, and radial direction and/or cuts respectively Guiding groove to ground along wire element guides.Guiding groove is each led into contact site, and end turn is borrowed at contact site It helps with the contact element of wiring element conductive attachment by axially contact and fixed.Here, guiding groove has respectively in the axial direction There is narrow positions, narrow positions blocks coil that is guiding in guiding groove respectively in the assembled state or being inserted into guiding groove End, it is axially sliding to prevent.
Wiring and contact device according to the present invention is not limited to the design of the motor with stator star and stator yoke herein Scheme.More precisely, wiring and contact device are used to form following distribution network, i.e., wherein there are multiple and different types or shape The motor and electric motor (sectional type motor, solid shaft type, cartridge type, IPM type, SPM formula, reluctance type) of formula.It is routed and connects Touching device can substantially use in the various motors of motor portion and coil with tooth form.
Advantageously, realizing the power contact portion for corresponding motor, power contact by being routed and contacting device Portion can be substantially assemblied at any (rotation) positioning.In addition, wiring and contact device can be simple and be inexpensively implemented into as band There is the contact element of different number.This is particularly advantageously used in the electronic horse with the rotating field winding for being embodied as multiple redundancy In reaching.Be achieved in it is particularly flexible and modularly with the matching of corresponding electric motor or corresponding motor.
Detailed description of the invention
The embodiment of the present invention is hereinafter explained in detail with reference to the accompanying drawings.In the accompanying drawings to simplify and schematically illustrate Out:
Fig. 1 shows the stator star with radial stator tooth in the perspective;
Fig. 2 shows the stator with the stator star being inserted into shaped stator yoke in the perspective, and stator star braid has suit The coil case of winding on to stator tooth;
Fig. 3 is shown in the perspective with the stator for being placed to contact device thereon;
Fig. 4 partlys show the wiring grommet of contact device in the perspective;
Fig. 5 partlys show the upside of wiring grommet in a top view;
Fig. 6 partlys show wiring grommet with the visual angle towards downside in the perspective;
Fig. 7 shows the coil case of stator in the perspective;
Fig. 8 a to Fig. 8 c shows the contact element of contact device in the perspective;
Fig. 9 partlys show the guiding groove of wiring grommet in the perspective, which has the end turn of merging;
Figure 10 partlys show wiring grommet with the visual angle along guiding groove;
Figure 11 shows the exploded view of the second embodiment of stator;
Figure 12 partlys show the contact element of the stator of alternative in the perspective;
Figure 13 partlys show the sectional view of the electric motor of the stator with alternative;
Figure 14 shows the connecting ring of the contact device of the stator of alternative in a top view;
Figure 15 partly show in the perspective contact device alternative design scheme, contact device with connect head and It can be with the end turn of phase connector laser welding.
Each corresponding component and size are always equipped with identical appended drawing reference in all figures.
Specific embodiment
Fig. 1 shows the star-shaped stator component of hereinafter referred to as stator star 2, and stator star is manufactured in embodiment By the stack of laminations that the stator lasmination 4 of stacked on top is constituted in a manner of layer.Cylindrical openings 6 of the stator lasmination 4 at the center that formed are made To be stacked on one another in the case where stator hole on stacking direction 8, and be for example pressed each other or punching press in groups.Stator star 2 It is the part of the stator 10 being wound partly show in Fig. 2, stator 10 is the electronic horse for the motor vehicle not being shown specifically Up to the stator of the motor in formula power-assisted steering portion.The stack of laminations of stator star 2 on it 12 and its downside 14 on preferably respectively with At least one stator lasmination 4 being closed in circumferential direction terminates.
In this embodiment, stator star 2 includes 12 stator tooths 16 to extend radially outwardly, they are relative to center The inside radially disposed on form cylindrical pole shoe 18.Stator tooth 16 is only illustratively equipped with appended drawing reference in figure.It is assembling It is only partially closed in peripheral side on stacking direction 8 under the pole shoe 18 of the rotor of electric motor in state, to be formed The gap 20 of pole shoe side, to reduce magnet short-cut path.Stator tooth 16 is equipped with the tooth top 22 of wedge shape in free end side, is located to be formed The contact surface of the left and right side of tooth top ridge.
Fig. 2 and Fig. 3 show the stator 10 for having stator stack 25, stator stack 25 is due to pressing process and by fixed Component 2 and stator yoke 26 are spliced into a manner of force closure/friction lock.Stator yoke 26 by the return rings lamination that overlies one another or Stator lasmination 28 is made.In the assembled state, coil windings 30 visible in fig. 2 are placed around the stator tooth 16 of stator star 2. The coil windings 30 made of insulated wire splice preceding as (list) coil in stator star 2 and stator yoke 26 and are wound into coil or winding On bracket (coil case) 32, and it is placed on stator tooth 16 together with coil or winding support.Coil case 32 only shows in figure It is equipped with appended drawing reference to example property.
Wherein coil of the carrying of coil case 32 of each frame-shaped as the part of at least one stator or rotating field winding 34 Winding or coil 30.Coil 30 can be contacted by two end turns 36 respectively.End turn 36 is in the accompanying drawings exemplarily only Equipped with appended drawing reference.
24 end turns 36 are amounted in Fig. 2 passes through the wiring being shown in FIG. 3 and contact device 38 axially Orientation, i.e., M in the axial direction are oriented on (direction of motor axis), for further contact and wiring.In electric motor In formula operation, the winding of energization generates the magnetic field of stator side, the magnetic field of stator side and determining around center for brushless electric motor The permanent magnet interaction of son or the rotor of motor axis M rotation.Substantially the contact device 38 of circular ring shape with triangle for being connect The mode of line or star-star connection or combined star-delta wiring carries out contact and wiring to end turn 36.
In the fig. 3 embodiment, 24 end turns 36 be wired to six (motor) phases U, V, W, U ', V ' and W ', It is associated with the phase connector 40 of stator end side, respectively mutually to these with the motor control part for touching electric motor.Herein It is that rotating field winding 34 is mutually redundantly implemented especially as two, with phase U, V and W and U ', V ' and W in embodiment ' the wiring of three-phase rotating field winding ground.The embodiment of redundancy at electric motor power-assisted steering portion application in Secure context is particularly advantageous.
Contacting device 38 includes being placed to the wiring grommet 42 in stator stack 25 in end side as component in principle Wiring element is used as wire element and the connecting ring 44 being placed on this wiring grommet 42.Wiring grommet 42 is configured to herein For the mechanical carrying and setting element of end turn 36, these end turns pass through contact element 46 (Fig. 8 a, Fig. 8 b, figure 8c) be in electrical contact with connecting ring 44, with for phase U, V, W, U ', V ' and W " wiring.
Hereinafter, the structure of wiring grommet 42 and contact element 46 is explained in greater detail with reference to Fig. 4 to 10.
As visible especially in Fig. 5, wiring grommet 42 has in radially inner side corresponds to end turn in quantity The circular of 36 quantity connects opening 48, and end turn 36 is directed to cloth from the downside of wiring grommet 42 50 by connecting opening The upside 52 of wire loop 42.It connects opening 48 to each lead into the guiding groove 54 in the upside 52 for being introduced into wiring grommet 42, guide Slot is exemplarily only equipped with appended drawing reference in figure.
Cross section be substantially U-shaped or the guiding groove 54 (Figure 10) of V-arrangement from it is respective connect opening 48 radially up to The contact site 56 of radial outside.It is substantially centrally narrow equipped with guiding groove 54 between opening 48 and contact site 56 connecting Position 58.Narrow positions 58 is configured to the holding that two extend into guiding groove 54 herein or clamps protrusion 60, keeps or clamps Protrusion reduces the span width of the gap opening of the upside of guiding groove 54.As especially as can be seen in fig. 9, respective end turn 36 are directed into contact site 56 in the assembled state in radially bent mode in guiding groove 54, and in contact site 56 Place is axially contact by contact element 46 and fixed.Narrow positions 58 prevents end turn 36 from 54 axis of guiding groove during contact To skidding off.
Especially as shown in Fig. 4 and Fig. 6, wiring grommet 42 radially inner side have segmented or it is toothed in Circle 62, inner ring cross the ring opening at the center of wiring grommet 42 in peripheral side.Inner ring 62 includes the circle tooth 64 and 66 of crenel shape herein. It encloses tooth 64 and 66 and is exemplarily only equipped with appended drawing reference in figure.
Tooth 64 be formed on the upside 52 of wiring grommet 42 and relative to upside 52 in axial direction M towards the side of connecting ring 44 To setting.Tooth 64 is enclosed as seen in Figure 3 like that as the centering auxiliary portion when assembling connecting ring 44.For this purpose, inner ring 62 Circle tooth 64 is at least partly scarfed in the ring opening at the center of connecting ring 44.Particularly, connecting ring 44 passes through cloth in assembly The circle tooth 64 of wire loop 42 is by radial clamping fixed.
Circle tooth 66 is formed on the downside 50 opposite with upside 52 of wiring grommet 42, and relative to downside 50 along axial side It is erect to M towards the direction of stator stack 25.As especially shown in Fig. 6 like that, circle tooth 66 is in the assembled state in week Rabbet in the corresponding receiving portion 68 of coil brace 32 in locking manner to side shape.Coil brace 32 is individually shown in Fig. 7 Out.Receiving portion accommodates the winding area for defining coil brace 32 that profile 68 is especially introduced into coil brace 32 herein , in the flange circle 70 of radially inner side.It is maintained in the receiving portion 68 of coil brace 32, is realized in locking manner by enclosing 66 shape of tooth The assembly of anti-torsion of the wiring grommet 42 in stator stack 25.
As will become apparent from according to Fig. 6, connects opening 48 and be respectively provided with cylindricality on the downside of wiring grommet 42 50 and open Mouth 72, these cylindrical openings are equipped with retention groove 74 in the region of the radially inner side of wiring grommet 42.By the retention groove 74 of introducing, The cylindrical openings 72 of tubulose have substantially semi-circular cross-sectional shape.Therefore, because retention groove 74 and in circle tooth 66 and cylindricality There are (splicing) region between opening 72, the flange circle 70 of respective coil brace 32 is at least partially inserted into the region. It is thus achieved that stable guarantor of the wiring grommet 42 on coil brace 32 or in the stator stack 25 for being equipped with the coil brace It holds.
In the region of contact site 56, radial guided end turn 36 by means of contact element 46 in an electrically conductive manner It is contacted.Separately shown contact element 46 is for cutting folder with end turn 36 in wiring grommet side structure in Fig. 8 a to Fig. 8 c Formula contact, and be for being contacted with 44 press-fit of connecting ring in connecting ring side structure.Contact element 46 is for example fabricated to metal Sheet metal bending part.Fig. 8 a shows contact element 46 in the perspective.In figure 8b towards in the assembled state in face of cloth The visual angle of the back side of the periphery of wire loop 42 shows contact element 46.Fig. 8 c shows the front side opposite with back side of contact element 46. Conductive contact element 46 includes clamping connector 76, clamps connector in clamped contact state with respective end turn 36 It is tangentially or circumferentially oriented to side at wiring grommet 42.Especially such as Fig. 8 a together with Fig. 5 and Fig. 9 observation, substantially square The clamping connector 76 of shape has bending section in the region on the side edge being axially directed to, and diameter is directed toward in bending section in the assembled state Inwardly.The contact seam 78 for being arranged in center is introduced into the main body for clamping connector 76, and in axial direction M is oriented contact seam.
As will be obvious that according to Fig. 9, connector 76 is clamped by contact seam 78 according to the side for cutting clip contact Formula is contacted with end turn 36.For this purpose, contact seam 78 has suitable cutting edge, cutting edge penetrates the line of end turn 36 The insulating layer of astragal and therefore conductively connected end turn 36.
It is embodied as the arm 82 that extends with pressure pin 80 and is formed separately the curved side in clamping connector 76 along upper.It is logical The bending for crossing side edge extends arm 82 and is oriented to point towards contact seam 78.Such as in the top view of Fig. 5 it is visible that, contact element Part 46 has the cross-sectional shape of general triangular, wherein bottom edge is by clamping the formation of connector 76 and side by extending The formation of arm 82.It extends arm 82 to be spaced from each other in free end side, respective end turn 36 is worn between free end side It is introduced through.It extends arm 82 and substantially crosses opening or port of the guiding groove 54 into contact site 56 herein.
The window-like that contact connector 76 is placed at least partially into the contact site 56 attached in contact condition is stayed In empty portion 84, wherein extend arm 82 be respectively supported at contact site 56 on the face of putting 86.For this purpose, extending the upper of arm 82 Edge 88 and lower edge 90 are staggered relative to the upper edge and lower edge axial retraction for clamping connector 76.
In other words, it is configured with substantially between the lower edge 92 of contact connector 76 and the lower edge 90 for extending arm 82 respectively Stair-stepping first axis is staggered, and constructs between the upper edge 88 for extending arm 82 and the upper edge 88 of contact connector 76 There is substantially stair-stepping second to axially offset.The upper edge 94 by the face of putting for hereinafter also referred to as contacting connector 76 constructs herein To be especially used to support the connecting ring 44 being placed on wiring grommet 42.In other words, connecting ring 44 is not placed in the assembled state On wiring grommet 42, but be only placed to contact element 46 on the face of putting 94, wherein contact element 46 is extended by respective Arm 82 is supported on the face of putting 86.
The pressure pin 80 for extending arm 82 is pressed into connecting ring 46 in a manner of press-fit contact in assembling process respectively Corresponding contact openings 96 in.On the one hand by the way that arm 82 will be extended by being put on the face of putting 86 and on the other hand due to wiring Ring 44 is supported on the face of putting 94, it is ensured that pressure pin 80 and the simple, reliable of contact openings 96 and is uniformly contacted.In this example As can it is contemplated that first by clamp connector 72 cutting contact end turn 36, and then by with pressure pin 80 Press-fit is contacted connecting ring 44 and 36 conductive attachment of end turn.But as an alternative for example it is also envisioned that first by wiring Ring 44 is connect with the pressure pin 80 for extending arm 82, and connecting ring 44 is then placed to wiring grommet 42 together with contact element 46 On.Advantageously, electrically connecting between end turn 36 and connecting ring 44 is generated by contact element 46, and generates wiring grommet 42 Mechanical attachment between connecting ring 44.
The second embodiment of stator 10 is explained below according to Figure 11 to Figure 14.
The embodiment of Figure 11 to Figure 14 and the difference of above-described embodiment essentially consist in contact device 38 ' structure.Figure 11 show the stator 10 in decomposing state.As seen in Figure 11 like that, in this embodiment, contact device 38 ' cloth Only there is wire loop 42 circle tooth 66 to be used as inner ring 62.End turn 36 is wired to three phases U, V and W by connecting ring 44.
Be shown in FIG. 12 contact device 38 ' contact element 46.In this embodiment, contact element 46 have for Cut the unbent clamping connector 76 of clip contact in phase end 36.Here, extending arm 82 with the flat of clamping connector 76 Extend in face.Therefore, contact element 46 can expend less and cost reduces ground and is for example fabricated to stamping parts.
Figure 13 partially illustrates the electric motor 98 as the motor with stator 10.Electric motor 98 includes motor shell Body 100, stator 10 are inserted into motor shell 100.Motor shell 100 has the support of bearing 102 of cover shape, and the support of bearing is being held The shell nozzle of side covering motor shell 100.Especially the support of bearing 102 of the side B has lid edge 104, and Gai Bianyuan 104 is in week It is sticked on motor shell 100 to side.
In the sectional view of Figure 13, the support of bearing 102 has stair-stepping with being staggered relative to 104 radially inner side of lid edge First shoulder 106.Therefore there are the slave connecting rings for pressure pin 80 and phase connector 40 between lid edge 104 and shoulder 106 The ring structure space in 44 regions erect.Radially inner side is provided with stair-stepping second shoulder 108 relative to shoulder 106, The bearing block 110 at the center of the support of bearing 102 is made up of the second shoulder 108.Between shoulder 106 and shoulder 108, bearing branch Frame 102 has the material thickened section 112 oriented towards connecting ring 44, and material thickened section wraps bearing block 110.It is thickened by material Portion 112 forms shoulder on that side in face of connecting ring 44 on downside, as visible in Figure 13, the support of bearing 102 by shoulder be at least partly scarfed to connecting ring 44 or contact device 38 ' ring opening in.In other words, bearing block 110 to It is partially scarfed to contact device 38 and ' in interior and stator stack 25 opening 6, it is empty that particularly compact and structure is consequently formed Between the electric motor 98 that reduces.
In the assembled state of electric motor 98, electronics housing 114 is placed on the support of bearing 102, electronics device Part shell, which has, is contained in 116 (ECU:electric control unit (electronic control list of controller for motor therein Member)).Controller for motor 116 includes intermediate circuit 118, and intermediate circuit is directed into the function with multiple semiconductor switch 122 On rate circuit 120.Controller for motor 116 also has interference suppression module 124 and controller 126, and controller is on signalling technique Couple with the unshowned rotor-position sensor for rotor-position to be detected and monitored during electric motor is run.Here, Rotor-position sensor be preferably arranged in contact device 38 ' region in, such as be arranged on connecting ring 44.
As in the sectional view of Figure 13 clearly as it can be seen that in Figure 14 it is obvious simplifiedly shown in the tool of connecting ring 44 there are three axis To the conductive traces 128 being stacked up and down, wherein conductive traces 128 are exemplarily only equipped with appended drawing reference in figure.? This, connecting ring 44 is especially implemented as circuit board, such as is embodied as PCB (printed circuit board), wherein is integrated with substantially circular ring shape Conductive traces 128.On the one hand conductive traces 128 contact herein with the corresponding phase connector 40 of phase U, V and W respectively, Yi Jiling On the one hand it is contacted with the corresponding contact openings 96 for the end turn 36 attached, with the wiring for rotating field winding 38.
As schematically shown in Figure 14, contact device 38 in this embodiment ' connecting ring 44 be segmented For subring 130a, 130b and the 130c that can be combined.Subring 130a, 130b and 130c are respectively configured to 120 ° of annular segments, They are electrically connected to each other and are mechanically connected at corresponding contact site.
On the one hand be connecting ring 44 outside or upside 132 and be on the other hand power circuit 120 semiconductor switch 122 are docked on the support of bearing 102 in thermally conductive technology by heat-conducting layer 134.Thus, it is possible to realize 116 He of motor electronic device Contact device 38 ' passes through the support of bearing 102 to the heat dissipation of motor shell 100.Pass through being thermally coupled or connecing to motor shell 100 It refutes, realizes for contact device 38 ' and the heat dissipation of the fever of motor electronic device 116.Electric motor 98, which has, as a result, improves Heatproof stress.It is thermally coupled or radiates and schematically shown in Figure 13 by arrow.
Be shown in FIG. 15 contact device 38 " alternative design scheme simplification view.In this design scheme, line Circle end 36 generally perpendicularly connected connecting ring 44.End turn 36 is especially led directly on phase connector 40 herein, So that realizing that end turn 36 is connect with the simple soldering connection or laser welding of phase connector 40.
The invention is not restricted to the embodiments described.But persons skilled in the art can not depart from present subject matter In the case where therefrom export other variants of the invention.Particularly, furthermore in the case where not departing from present subject matter, in conjunction with showing All independent features of example property embodiment description also can be otherwise combined with each other.
Thus, for example thinkable be, stator stack 25 is equipped with twin coil, wherein coil windings 30 are wrapped in two On coil brace 32.Here, contact device 38,38 ' wiring grommet 42 and connecting ring 44 have correspondingly reduce the ginseng of quantity With the element of the wiring of rotating field winding 34.
Reference signs list
2 stator stars
4 stator lasminations
6 openings
8 stacking directions
10 stators
12 upsides
14 downsides
16 stator tooths
18 pole shoes
20 gaps
22 tooth tops
24 contact surfaces
26 stator yokes
28 stator lasminations
30 coil windings/coil
32 coil braces
34 rotating field windings
36 end turns
38 38, ', 38 " wiring and contact devices
40 phase connectors
42 wiring grommets/wire element
44 connecting rings/wiring element
46 contact elements
48 connect opening
50 downsides
52 upsides
54 guiding grooves
56 contacts site
58 narrow positions
60 keep protrusion/clamping protrusion
62 inner rings
64,66 circle tooth
68 receiving portions
70 flange circles
72 cylindrical openings
74 retention grooves
76 clamp connector
78 contact seams
80 pressure pins
82 extend arm
84 leave a blank portion
86 by the face of putting
88 upper edges
90 lower edges
92 lower edges
94 upper edges/by the face of putting
96 contact openings
98 machines/electric motor
100 motor shells
102 supports of bearing
104 lid edges
106,108 shoulder
110 bearing blocks
112 material thickened sections
114 electronics housings
116 controller for motor
118 intermediate circuits
120 power circuits
122 semiconductor switch
124 interference suppression modules
126 controllers
128 conductive traces
130a, 130b, 130c subring
132 upsides
134 layers
M axial direction/motor axis/axis stator
U, V, W, U ', V ', W ' phase

Claims (13)

1. the stator (10) of motor (98), the especially stator (10) for the motor (98) of motor vehicle, stator (10) band Have: stator stack (25), the stator stack have several stator tooths (16);The packet being arranged on the stator tooth (16) Include the rotating field winding (34) of multiple phases (U, V, W, U ', V ', W '), wherein each phase (U, V, W, U ', V ', W ') includes at least One coil (30), the coil have the first and second end turns (36);And contact device (38,38 ', 38 "), it is described Contact device includes the wire element (42) and be placed to the cloth line element that end side is placed on the stator stack (25) The wiring element (44) for being used to make the end turn (36) with phase connector (40) wiring on stator end side on part,
Wherein, the end turn (36) extends perpendicularly through connecting opening (48) and distinguishing diameter for the wire element (42) To and/or contact of the tangential bending ground along guiding groove (54) guidance of the wire element (42) and in the guiding groove (54) By the contact element (46) with the wiring element (42) conductive attachment by axially contact and fixation on position (56), and
Wherein, the guiding groove (54) is respectively provided with narrow positions (58) on (M) in the axial direction, the narrow positions (58) The end turn (36) guided in the guiding groove (54) respectively is blocked, it is axially sliding to prevent.
2. stator (10) according to claim 1,
It is characterized in that,
The narrow positions (58) is by extending into the holding protrusion in the guiding groove in the two sides of the guiding groove (54) (60) it is formed.
3. stator (10) according to claim 1 or 2,
It is characterized in that,
The coil (30) is respectively provided with coil windings, and the coil windings are mounted on coil brace (32), the coil Bracket (32) is placed on the stator tooth (16).
4. stator (10) according to claim 3,
It is characterized in that,
The retention groove (74) with introducing for connecting opening (48) and being respectively provided with rotating field winding side of the wire element (42) Cylindrical openings (72) have been placed at least partially into coil brace (32) in the retention groove.
5. stator (10) according to any one of claim 1 to 4,
It is characterized in that,
The wire element (42) has the inner ring (62) of radially inner side, and the inner ring is at least partly rabbeted in the assembled state In to the ring opening at the center of the wiring element (44) and radial clamping fixes the wiring element (44).
6. stator (10) according to claim 5,
It is characterized in that,
The inner ring (62) of the wire element (42) is implemented as with several first and second circles tooth (64,66) with being segmented, In, first lap tooth (64) is axially erect towards the direction of the wiring element (44) and the wiring element that is fixedly clamped (44), and wherein, second circle tooth (66) axially towards the rotating field winding (34) direction erect and shape in locking manner It is scarfed in the receiving portion (68) of the respective radially inner side of coil brace (32).
7. stator (10) according to any one of claim 1 to 6,
It is characterized in that,
Wherein, the wiring element (44) is implemented as with several conductive traces (128), preferably multilayer circuit board, institute Stating conductive traces makes to be arranged in connecting on the outside (132) back to the stator stack (25) of the wiring element (44) Head (40) is electrically connected with the contact element (46) on the opposite inside for being arranged in the wiring element (44).
8. stator (10) according to claim 7,
It is characterized in that,
The wiring element (44) is individually justified ring segment-shaped subring (130a, 130b, 130c) and is formed by several.
9. stator (10) according to any one of claim 1 to 8,
It is characterized in that,
The contact element (46) contacts and is connecing at for cutting clip with the end turn (36) in wiring grommet side structure Wire loop side structure with the wiring element (44) indentation at for contacting.
10. stator (10) according to claim 9,
It is characterized in that,
The contact element (46) includes the clamping connector (76) of wire element side, during the clamping connector (76) has The contact seam (78) of centre and for the axial by the face of putting (94) of the wiring element (44), and
There are two be at least partly bent toward each other towards contact seam (78) for forming on the clamping connector (76) Extend arm (82), the pressure pin (80) for extending arm (82) and being respectively provided with wiring element side, the upper edge for extending arm (88) it is staggered axially with respect to described by the face of putting (94) retraction.
11. being preferred for the motor (98) in power-assisted steering portion, especially electric motor, the motor is with according to claim 1 To stator described in any one of 10 (10).
12. motor (98) according to claim 11,
It is characterized in that,
The support of bearing (102) of motor shell (100), especially can-like, is docked with the wiring element with thermally conductive technical approach (44) on outside (132).
13. wiring and contact device (38,38 ', 38 ") for motor (98), the motor have with several phases (U, V, W, U ', V ', W ') rotating field winding (34), wherein each phase (U, V, W, U ', V ', W ') includes at least one coil (30), institute Stating coil (30) has with the first and second end turns (36), the wiring and contact device for the end turn (36) wire element (42) of guidance and wiring and end turn (36) and phase connector for making the motor (98) (40) wiring element (44) of wiring,
Wherein, in the assembled state, what the end turn (36) extended perpendicularly through the wire element (42) connects opening (48) and difference is radial and/or tangentially the guiding groove (54) along the wire element (42) guides and in the guiding groove (54) on contact site (56) by the contact element (46) with the wiring element (42) conductive attachment by axially contact and It is fixed, and
Wherein, the guiding groove (54) is respectively provided with narrow positions (58) on (M) in the axial direction, the narrow positions (58) The end turn (36) guided in the guiding groove (54) respectively in the assembled state is blocked, it is axially sliding to prevent.
CN201780076216.8A 2016-12-08 2017-12-07 The stator of motor, motor and wiring and contact device for motor Withdrawn CN110050405A (en)

Priority Applications (3)

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DE102016224526.0A DE102016224526A1 (en) 2016-12-08 2016-12-08 Stator of an electric machine, electric machine and laying and contact device for an electric machine
DE102016224526.0 2016-12-08
PCT/EP2017/081767 WO2018104418A1 (en) 2016-12-08 2017-12-07 Stator of an electrical machine, electrical machine, and routing and contacting device for an electrical machine

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