WO2016146304A1 - Stator d'une machine électrique - Google Patents

Stator d'une machine électrique Download PDF

Info

Publication number
WO2016146304A1
WO2016146304A1 PCT/EP2016/052659 EP2016052659W WO2016146304A1 WO 2016146304 A1 WO2016146304 A1 WO 2016146304A1 EP 2016052659 W EP2016052659 W EP 2016052659W WO 2016146304 A1 WO2016146304 A1 WO 2016146304A1
Authority
WO
WIPO (PCT)
Prior art keywords
stator
elements
machine according
electrical machine
electrical
Prior art date
Application number
PCT/EP2016/052659
Other languages
German (de)
English (en)
Inventor
Thomas Mann
Uwe Schein
Original Assignee
Continental Automotive Gmbh
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 Continental Automotive Gmbh filed Critical Continental Automotive Gmbh
Publication of WO2016146304A1 publication Critical patent/WO2016146304A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148—Sectional cores
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings

Definitions

  • the invention relates to an electrical machine for the generation ⁇ supply of electric energy or for the production of mechanical ⁇ shear performance, with a stator and with a rotatably mounted inside or outside of the stator rotor, the
  • Stator has a winding with an electrical conductor.
  • Electric motors have a stator, inside or outside which a rotor is rotatably arranged.
  • the stator has windings of at least one current-carrying conductor , which are connected to a voltage source. In this way, a magnetic field is generated in and around the stator in which the rotor can rotate.
  • the stator has regularly ge ⁇ ometric configurations, which allow attaching the Wick ⁇ ment on the stator. For example ⁇ be disposed and protruding teeth are known on the stator, which are wrapped with the elekt ⁇ step ladder.
  • the prior art discloses a variety of different stators for electric motors and generators.
  • different techniques for generating the winding on the stator are known.
  • the winding on the stator which is arranged in each case only every second tooth of the stator in the circumferential direction, the so-called double-layer winding ⁇ .
  • a disadvantage of the devices in the prior art is ins ⁇ particular that allow the previously known designs of stators due to their structural design no optimal Wick ⁇ ment to produce the highest possible mechanical or electrical power.
  • the object of the present invention to provide an electric machine with a stator, wherein the stator allows a simplified generation of an improved Wick ⁇ ment while having improved properties for operating an electric motor or a generator. Furthermore, the manufacturability of the stator is to be improved.
  • An embodiment of the invention relates to an electrical ⁇ specific machine for the production of electrical energy or for producing mechanical power, with a stator and with a rotatably mounted inside or outside of the stator rotor, wherein the stator has a winding with an electrical conductor, wherein the Stator is formed in two parts from a first stator element and a second stator element, wherein each of the stator has an annular Grund ⁇ body, from which in the radial direction in each case ne ne of spaced circumferentially spaced armature elements, wherein the armature elements in the axial direction on the each annular base body ⁇ project.
  • Such a stator is particularly advantageous since the Wicklun ⁇ gen with the electrical conductor in a particularly simple manner can be produced without a particularly wide waste had to keep between the directly adjacent Ankerele ⁇ elements.
  • the two-divided stator windings can be generated to the anchor elements on a Statore ⁇ lement or two stator before the two stator elements are joined together.
  • a Statorelemen ⁇ tes forming gaps in which the respective armature ⁇ elements of the other stator are inserted, a sufficiently large working space is given to the winding of the electrical conductors to the anchor elements voreh ⁇ men can.
  • stator having large distances between the anchoring elements in a generator effi ciency ⁇ is not opti ⁇ times in terms of energy as well.
  • the stator may be used in the on ⁇ a reflection of both an electric motor and a generator according to the formulation. Electric motors and generators ⁇ the electric therefore under the heading machine summarized. Electric motors and generators are similar in ih ⁇ rem build a very large extent, so the stator for both versions can be used.
  • the axial direction describes the direction along the center axis with ⁇ of the annular body of the stator.
  • the radial direction describes a direction which stands as Norma ⁇ le on the central axis of an annular body.
  • first stator element and the second stator element are identical in construction.
  • a generated from two identical stator stator is particularly advantageous because the number of parts required can be verrin ⁇ siege, whereby cost savings achieved who can ⁇ .
  • the stator can be generated regardless of their final positioning in the finished stator on a single machine Ferti ⁇ supply and need not be pre-sorted or spe ⁇ zifisch also supplied. Only during assembly is it determined how the identical part is used.
  • first stator and the second stator member are inserted in the direction towards ⁇ axially projecting anchor elements onto each other, wherein the annular base body of the stator elements are concentrically aligned with each other.
  • a preferred embodiment is characterized gekennzeich ⁇ net, that the first stator and the second Statorele ⁇ ment in the circumferential direction is rotated in such a way against each other are oriented ⁇ oriented such that the anchor elements of the first Statorelemen ⁇ tes which are engaged between the anchor elements of the second Statorele ⁇ mentes formed interspaces ,
  • the cogging torque is a measure of the willingness of the rotor of the electric motor to remain in a specific position within the stator and thus to interrupt the concentricity.
  • the higher the cogging torque the higher the likelihood that the rotor will stop unintentionally.
  • the rotor itself is driven mechanically, which is why it can not come to a persistence of the rotor in most cases, however, ⁇ on the basis of a large distance, the efficiency of Energywand ⁇ ment is reduced.
  • the anchor elements considered in the circumferential direction have a narrow area and have ei ⁇ NEN wide range, where the narrow zone facing the annular base body and the wide area facing away from the annular base body.
  • the anchoring elements preferably have a y-shaped cross ⁇ section, with the foot area of the y-shaped cross-section is based on the annular base body and the Ankerele ⁇ elements widen in the radial direction away from the annular base body. This is particularly advantageous for generating the winding with the electrical conductor around the anchor elements, without the winding can slip in the radial direction of the anchor element.
  • the anchor elements can protrude in the axial direction only in one direction or in both directions beyond the annular base body. Also in the axial Rich ⁇ tion can be provided starting from the annular base body widening shape.
  • the armature elements of the first stator element and the armature elements of the second Sta ⁇ torides are arranged alternately ⁇ in the circumferential direction of the stator.
  • an alternating arrangement in the ratio 1 to 1 is to be particularly preferred, which is due to the use of identical parts in the stator elements he ⁇ .
  • stator elements are formed from egg ⁇ nem metallic material.
  • a metallic material for the stator is particularly advantageous to support a positive and possible emergence from ⁇ propagation of electromagnetic fields generated in each case.
  • a me ⁇ tallisch coated non-metal can be used.
  • the anchor elements are wrapped at least egg ⁇ nes stator with an electrical conductor.
  • the armature elements can each be wrapped ⁇ wells only one stator, or the anchor elements of the two stator elements.
  • the anchor ⁇ elements of the two stator can be wrapped with the Common ⁇ men electrical conductor or with two or more different electrical conductors. The under ⁇ different electrical conductors may also have different electrical polarity beyond.
  • the wound with the electrical conductor's ⁇ anchor elements are provided with an insulating coating, through the insulating loading Layering an electrical insulation between the electrical ⁇ rule conductors and the stator is generated.
  • An electrical insulation between the stator and the electrical conductor is particularly advantageous if the elec ⁇ tric conductor itself has no insulation. In the event that the electrical conductor has an insulation, ei ⁇ ne additional protection against electrical short circuits can be achieved by the insulating coating.
  • latching devices are arranged on the stator elements, wherein the stator elements can be latched to one another via the latching devices.
  • latching devices By latching devices, the stator elements can be advantageously attached to each other. As a result, the stability of the stator is increased overall.
  • the latching devices can be formed in ⁇ example by locking lugs, latching hooks or other locking elements, which engage in pockets, recesses or recesses and thus ensure a secure positioning of the stator elements against each other.
  • the Rastvor ⁇ directions can be performed detachable again or the ⁇ art that they are solvable only by destruction. Also, it is preferable if the two annular ones
  • FIG. 1 is a perspective view of two concentrically aligned stator elements, wherein the two stator elements are shown spaced from each other,
  • Fig. 2 is a perspective view of the two elements Statorele ⁇ a stator, one of said stator has an insulating coating on the anchoring elements and to the coated armature elements an electrical conductor is wound, and
  • Fig. 3 is a perspective view of the stator, wherein the two individual stator elements are inserted into each other in the axial direction.
  • FIG. 1 shows two stator elements 1, 2, which are arranged opposite one another.
  • the stator elements 1, 2 in Figure 1 are of identical construction. Therefore, the description of the two stator elements 1, 2 based on the stator element 1.
  • the statements apply ana ⁇ log.
  • the two stator elements 1, 2 are oppositely rotated by 180 ° to each other.
  • the stator element 1 has an annular base body 3, of which several anchor elements 4 in the radial direction protrude.
  • the anchor elements 4 are arranged spaced apart in the circumferential direction along the outwardly directed surface of the annular Grundkör ⁇ pers 3.
  • the anchor elements 4 protrude in the axial direction on one side over the axial Warre- ckung of the annular base body 3 addition.
  • the anchor elements can also on both sides in the axial direction on the annular base relievera ⁇ gene.
  • the anchor elements 4 have a y-shaped cross section, wherein the foot portions of the y-shaped form is based on the ringförmi ⁇ gen body.
  • the anchor elements 4 have a circumferentially uniformly wide section 5, which widened with increasing radial distance to the annular base body 3 in the circumferential direction. This area widening with increasing radial distance is the second section 6 of the anchor elements 4.
  • the anchor elements 4 protrude in the axial direction by a longitudinal extension beyond the ring ⁇ - shaped base body 3, which corresponds to the length of the annular base body 3 in the axial direction.
  • the Statorele ⁇ ment 1 thus has an axial extension which is twice as long as the axial extent of the annular base body 3. In this way it is achieved that the on ⁇ kerieri 4 of two nested stator elements 1, 2 each flush with the Close annular base 3 from ⁇ .
  • the anchoring elements can also be designed such that it unilaterally or bilaterallyforceste ⁇ hen in the axial direction over the generated from two stator stator.
  • the width measured in the circumferential direction of the anchor elements 4 at the radially outwardly directed surface is slightly smaller than that between two adjacent directly to each other. Beard arranged anchor elements 4 trained gap 7. The gaps 7 are therefore wide enough to the anchor ⁇ elements 4 of the other stator element 1, 2 clergyneh ⁇ men.
  • the annular base body 3 is thin-walled and has in its interior a sufficient receiving space for a rotor.
  • the stator 1 may be carried out with the Ankerele ⁇ elements 4 in one piece or in several parts.
  • the annular base body and the anchor elements 4 are formed from a metallic material.
  • Figure 1 is an exploded view and shows the Statore ⁇ elements 1, 2 spaced from each other in the axial direction.
  • the stator elements 1, 2 are inserted into one another, so that the annular base body 3 abut each other in the axial direction.
  • FIG. 2 likewise shows the two stator elements 1, 2 of FIG. 1.
  • the stator element 1 in FIG. 2 is at least partially provided with an insulating element
  • the insulating layer 9 covers in the embodiment of Figure 2, the radially outwardly directed surface of the ring ⁇ shaped base body 3 with a layer 12 and at least the wegge ⁇ in the axial direction of the second stator element 2 end face of the annular base body 3 with ei ⁇ ner layer 11th .
  • the second stator member 2 supplied ⁇ turned end face of the annular body 3 can be covered with an insulating layer.
  • the execution ⁇ example of the figure 2 has at the end facing each other supplied surfaces of the annular base body 3 not ⁇ iso-regulating layer, whereby in the assembled state, a di- Rigid contact of the two annular body 3 is reached together.
  • the insulating layer 9 is also designed in such a way that the end face of the armature elements 4 directed radially outward is enlarged.
  • the layer 9 is in particular designed such that the outer circumferential surface of the stator element 1, which is formed by the radially outwardly directed surfaces of the Ankerele ⁇ elements 4, is not broken.
  • the layer 9 contributes in addition to an insulation between the electrical conductor 8 and the stator 1 also to a fixation of the elec ⁇ ⁇ electric conductor 8 to the anchor elements 4, since the Warre- ckung of the anchor elements 4 in the circumferential direction and in the axial direction is increased, thereby an unwanted loosening of the electrical conductor 8 is difficult.
  • stator 3 shows a stator 20, the stator 20 of the first stator 1 and the second stator 2 is together ⁇ quantity sets.
  • the stator is formed by the nesting of the stator elements 1 and 2, which have already been shown in Figures 1 and 2.
  • the two annular base body 3 abut each other and the anchor elements 4 engage each other, so that depending ⁇ anchors between two anchor elements 4 of the first Statorelemen ⁇ tes 1, an anchor element 4 of the second stator 2 is arranged ⁇ .
  • the first Stato ⁇ Rdevice 1 has a coating with an insulating layer. 9
  • the anchoring elements 4 of the two ⁇ th stator 2 protrude, whereby only very small gaps between the insulating layer 9 and the armature elements 4 of the second stator 2 formed.
  • the radially outwardly directed surfaces of the armature elements 4 and the insulating layer 9 form an annular shell surface 21 at the radially outwardly directed end region of the stator 20.
  • the stator 20 furthermore has a winding with an electrical conductor 8 on every second armature element 4.
  • the stator 20 has the particular advantage that the Wicklun ⁇ can easily gen of the electrical conductor 8 to the anchoring elements 4 of the first stator 1 are generated with different ⁇ union winding techniques because the interim ⁇ rule the armature elements 4 gaps 7 formed re- are relatively big.
  • Figures 1 to 3 have insbeson ⁇ particular any limiting character and serve to Ver ⁇ turnedung the inventive concept.
  • the individual features can also be combined with each other.

Landscapes

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

Abstract

L'invention concerne une machine électrique pour la génération d'énergie électrique ou pour la génération de puissance mécanique, avec un stator (20) et avec un rotor logé de manière à pouvoir tourner à l'intérieur ou à l'extérieur du stator (20). Selon l'invention, le stator (20) comprend un enroulement avec un conducteur électrique (8), le stator (20) étant formé de deux parties, à savoir un premier élément de stator (1) et un second élément de stator (2). Chacun des éléments de stator (1, 2) comprend à cet effet un corps de base (3) de forme annulaire. Une pluralité de dents (4) écartées les unes des autres le long de la circonférence font saillie de chacun des corps de base (3) dans une direction radiale. Les dents (4) font saillie de leur côté dans la direction axiale au-delà de leur corps de base (3) de forme annulaire respectif de sorte que les dents (4) s'étendent après un montage des deux éléments de stator (1, 2) sur toute la longueur axiale du stator (20).
PCT/EP2016/052659 2015-03-13 2016-02-09 Stator d'une machine électrique WO2016146304A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015204649.4A DE102015204649A1 (de) 2015-03-13 2015-03-13 Elektrische Maschine mit Stator
DE102015204649.4 2015-03-13

Publications (1)

Publication Number Publication Date
WO2016146304A1 true WO2016146304A1 (fr) 2016-09-22

Family

ID=55404688

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/052659 WO2016146304A1 (fr) 2015-03-13 2016-02-09 Stator d'une machine électrique

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Country Link
DE (1) DE102015204649A1 (fr)
WO (1) WO2016146304A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11341717A (ja) * 1998-05-28 1999-12-10 Matsushita Seiko Co Ltd 電動機の固定子とその製造方法
US20040164639A1 (en) * 2003-02-26 2004-08-26 Asmo Co., Ltd. Core having axially assembled core sub-parts and dynamo-electric machine member having the same
US20110148245A1 (en) * 2009-12-16 2011-06-23 Nidec Motor Corporation Assembling method for a stator and stator produced thereby

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10319190A1 (de) * 2003-04-29 2004-11-18 Robert Bosch Gmbh Elektrische Maschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11341717A (ja) * 1998-05-28 1999-12-10 Matsushita Seiko Co Ltd 電動機の固定子とその製造方法
US20040164639A1 (en) * 2003-02-26 2004-08-26 Asmo Co., Ltd. Core having axially assembled core sub-parts and dynamo-electric machine member having the same
US20110148245A1 (en) * 2009-12-16 2011-06-23 Nidec Motor Corporation Assembling method for a stator and stator produced thereby

Also Published As

Publication number Publication date
DE102015204649A1 (de) 2016-09-15

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