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WO2014095551A2 - Stator pour moteur électrique - Google Patents

Stator pour moteur électrique Download PDF

Info

Publication number
WO2014095551A2
WO2014095551A2 PCT/EP2013/076320 EP2013076320W WO2014095551A2 WO 2014095551 A2 WO2014095551 A2 WO 2014095551A2 EP 2013076320 W EP2013076320 W EP 2013076320W WO 2014095551 A2 WO2014095551 A2 WO 2014095551A2
Authority
WO
WIPO (PCT)
Prior art keywords
verschaltscheibe
stator
insulating
mounting
mounting recess
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.)
Ceased
Application number
PCT/EP2013/076320
Other languages
German (de)
English (en)
Other versions
WO2014095551A3 (fr
Inventor
Christian Aumann
Andrew Pierson
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to CN201380067562.1A priority Critical patent/CN104871405B/zh
Publication of WO2014095551A2 publication Critical patent/WO2014095551A2/fr
Publication of WO2014095551A3 publication Critical patent/WO2014095551A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/06—Magnetic cores, or permanent magnets characterised by their skew
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/325—Windings characterised by the shape, form or construction of the insulation for windings on salient poles, such as claw-shaped poles

Definitions

  • the invention relates to a stator for an electric machine according to the preamble of claim 1.
  • Stators for electrical machines have a disk set, which is formed from a plurality of superposed stator blades of a sheet metal material.
  • the disk pack is limited at both opposite end faces of one end or cover plate, which is followed by an insulating lamination of electrically insulating material.
  • one of the insulating lamellae is connected to an interconnecting disk, via which coil windings, which are accommodated in the disk pack in the stator, are connected to the power supply.
  • Lamella package including the insulating lamellae and the faceplate inserted into a stator housing.
  • the tool used for this purpose pushes the disk pack, including insulating disks and the locking disk, into the stator housing with an axial pressing force until the components have reached their axial position in the stator housing with a press fit. It must be ensured that the occurring pressing forces do not lead to damage to the stator components.
  • the invention has for its object to design a stator for an electric machine with simple measures easy to install. This object is achieved with the features of claim 1.
  • the dependent claims indicate expedient developments.
  • the stator according to the invention is used in electrical machines, for example in drive motors, which are used in motor vehicles, for example as a servomotor, or in hand-held machine tools.
  • the electric machine is, for example, an internal rotor motor with an external, encompassing stator and an internal rotor.
  • the stator has a disk pack, which consists of a plurality
  • stator blades which are preferably made of a sheet metal material, in particular punched out of a metal sheet.
  • At least one end-side end or cover plate is followed by an insulating lamella made of electrically insulating material;
  • an insulating lamella is arranged in each case on both end faces of the disk pack.
  • An insulating lamella is connected on the side facing away from the disk pack axial side with a Verschaltfusion for supplying the windings with electricity.
  • the insulating lamella can be positively connected to the Verschaltfusion.
  • At least one first mounting recess and at least one associated, second mounting recess are introduced into the interconnecting disk, wherein the first and the second mounting recess in the
  • Locking plate or the insulating lamella in the assembled state are aligned.
  • the first and the second mounting recess extending axially from the outer end face of the Verschaltsay to the front side of the disk pack.
  • the assembly or pressing tool projects in this case with a finger into the mutually aligned mounting recesses in the insulating and the Verschaltfusion and acts on the front side of the plate pack, which is usually made of laminations and accordingly has a higher stability than the Isolierlamelle and the Verschaltfactor, which are preferably made of plastic.
  • the insulating plate and the Verschaltfactor are not exposed to axial compressive forces, so that the risk of damage to insulating plate or Verschaltfusion is significantly reduced during the assembly process.
  • Distributed over the circumference can be several first and second
  • Mounting recesses be introduced into the Verschaltsay or the insulating lamella, so that correspondingly at several points of the circumference of an axial pressing force on the mounting or pressing tool on the front side of the disk pack can be exercised.
  • the Verschalttry distributed over the circumference on several Wicklungsriadsegmente, each having an access slot for the windings of the associated individual teeth on the disk set.
  • the access slot is designed to be open axially towards the free end side and receives the coil wire.
  • the access slot extends axially through the winding support segment between both end faces of the Verschaltfactor and aligned in the mounted state with the
  • Access slot in the winding support segment be introduced the first mounting recess, which reduces the axial height of the wall in the winding support segment at this point.
  • the mounting recess preferably extends only over an axial partial length of the axial height of the
  • Mounting recess advantageously extends to the axially free, the insulating lamella facing away from the end of the winding support segment.
  • the axial extension of the mounting recess is preferably at least 50% of the total axial height of the Verschaltin in the region of
  • Mounting recess is advantageously located on the radially inner wall of the winding support segment, so that a corresponding finger of the assembly or pressing tool protrudes radially from inside to outside and with a corresponding axial component through the mounting recess in the wall of the winding support segment.
  • Each mounting recess in the face plate is at least one
  • a mounting recess in the Verschaltusion at least two
  • Insulating lamellae can be installed in two different angular positions and aligned with each other in each angular position mounting recesses in the Verschaltfusion and in the insulating lamella. In the case of several distributed over the circumference mounting recesses, it may be appropriate that they are arranged evenly distributed. But it is also possible an uneven distribution of mounting recesses, especially in the Verschaltfusion, which constructive restrictions in the Verschaltfactor can be accommodated. In a higher number of mounting recesses in the insulating lamellae arranged there recesses can be positioned in contrast to the Verschaltfactor at a regular angular distance from each other, as due to the higher number of mounting recesses in different mounting angle layers of the insulating lamellae of mounting recesses with the
  • FIG. 1 is a perspective view of a stator of an electric machine with a disk set with a front-side insulating lamella, which is a carrier plate,
  • FIG. 3 shows a section through the stator, with a stator housing for receiving the plate pack including insulating lamellae and plate,
  • Fig. 5 the insulating lamella in plan view.
  • stator 1 is shown for an electrical machine, in particular for an electric internal rotor motor.
  • the stator 1 has a stator or disk pack 2, which is constructed from a plurality of individual stator blades, which are stacked on one another. Furthermore, one is
  • Panel 4 arranged on the front side of the plate pack 2 are supplied via the windings 5 in the plate pack 2 with power.
  • an insulating lamella 3 is arranged, which consists of an electrically insulating material, in particular of plastic.
  • the insulating lamella 3 can be designed as a plastic injection-molded component.
  • a corresponding insulating lamella is also located at the opposite axial end face of the disk set second
  • the disk set 2 is designed slanted and has radially inwardly directed carrier teeth around which the windings 5 are placed. Due to the skew, the windings 5 extend at an angle to the stator longitudinal axis 7. Between adjacent windings 5 is in each case an insulating strip 6, which extends over the entire axial height of the disk set 2. Due to the slanted design of the disk set 2, the insulating strips 6 also have an angle relative to the longitudinal axis 7 of the disk set. The length of the insulating strip 6 is dimensioned so that both end faces of the
  • Lamella packages 6 are surmounted by the insulating strip.
  • the insulating strip 6, which are designed for example as a paper strip, are received and held in the region of their respective free end portions of the insulating lamellae 3, which are located on both end faces of the plate pack 2.
  • the Verschaltsay 4 distributed over the circumference of a plurality Windungsslvessegmente 8, in which axially extending access slots 9 are inserted for winding support of the windings for each one underlying coil.
  • the access slots 9 in the winding support segments 8 extend axially over the entire height of
  • a total of three of the winding support segments 8 have an additional first mounting recess 10 on the radially inner wall in the
  • Winding carrier segment 8 The mounting recess 10 extends from the axially upper, the insulating lamella 3 facing away from the end of the winding support segment 8 over more than half the axial height of the Verschaltsay 4, in particular over about two-thirds of the axial height. Overall distributed over the circumference three winding support segments 8 are provided with an additional, axially extending mounting recess 10, of which two mounting recesses 10 are arranged in Wicklungsslvessegmenten 8, which are offset at a 90 ° angle to each other and the third approximately in a 120 ° Angle to a mounting recess or a 150 ° angle to the other Montageaussparung stands.
  • the first three mounting recesses 10 in the Verschaltectomy 4 are assigned a total of six second mounting recesses 1 1 in the Isolierlamelle 3 (Fig. 5).
  • Each individual mounting recess 10 in the Verschaltectomy 4 are assigned two adjacent mounting recesses 1 1 in the Isolierlamelle 3, which form a Montageaussparungs pair.
  • Mounting recesses 1 1 in the insulating lamella 3 are located at the radial outer side of an outer ring 12, from which support teeth 13 extend radially inwardly, which are carriers of the windings.
  • the total of six mounting recesses 1 1 on the outer ring 12 each extend in the axial direction completely over the axial height of the insulating lamella 3, the
  • Mounting recess pairs are circumferentially offset at a 120 ° angle to each other. Each two mounting recesses 1 1 are immediately adjacent, but offset in the circumferential direction to a
  • Mounting recess 10 can be achieved in the Verschaltsay 4, regardless of which 120 ° -Winkellage the insulating lamella 3 is installed in the stator. Depending on the installation position, one of the two adjacent ones arrives
  • Locking plate 4 is aligned with a mounting recess 1 1 in the insulating 3, so that in the assembled state an axially continuous path in the region of the three mounting recesses 10 is formed from the outer end face of the Verschaltsay 4 to the underlying end face of the disk set 2.
  • Insulating lamella 3 directly on the front side of the plate pack 2 which can accommodate high axial pressing forces readily due to its design of laminations.
  • the insulating strips 3 and the Verschaltsay 4 are not acted upon by these high pressing forces and thus are not subject to the risk of damage during the press-fitting of the disk set in the stator housing.
  • the stator housing 15 has a radially widened shoulder 15a, in which the insulating lamella 3 and the connecting disk 4 are accommodated.
  • the disk set 2 is pressed into the radially smaller section of the stator housing 15 with an axial pressing force.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

Stator pour un moteur électrique, qui comporte un noyau feuilleté et une tôle isolante située sur la face frontale du noyau feuilleté et reliée à un élément de connexion. L'élément de connexion comporte un premier évidement de montage et la tôle isolante comporte un second évidement de montage, les deux évidements étant alignés l'un avec l'autre.
PCT/EP2013/076320 2012-12-21 2013-12-12 Stator pour moteur électrique Ceased WO2014095551A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201380067562.1A CN104871405B (zh) 2012-12-21 2013-12-12 用于电机的定子

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE202012012647.4 2012-12-21
DE202012012647U DE202012012647U1 (de) 2012-12-21 2012-12-21 Elektrische Maschine mit einem Stator und einem Rator
DE102013213449.5A DE102013213449A1 (de) 2012-12-21 2013-07-09 Stator für eine elektrische Maschine
DE102013213449.5 2013-07-09

Publications (2)

Publication Number Publication Date
WO2014095551A2 true WO2014095551A2 (fr) 2014-06-26
WO2014095551A3 WO2014095551A3 (fr) 2014-12-31

Family

ID=49626116

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/076320 Ceased WO2014095551A2 (fr) 2012-12-21 2013-12-12 Stator pour moteur électrique

Country Status (3)

Country Link
CN (1) CN104871405B (fr)
DE (2) DE202012012647U1 (fr)
WO (1) WO2014095551A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104578480A (zh) * 2014-12-12 2015-04-29 芜湖市万华塑料制品有限公司 绝缘骨架上支架

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014216823A1 (de) 2014-08-25 2016-02-25 Robert Bosch Gmbh Rotor für eine elektrische Maschine
CN104578479A (zh) * 2014-12-12 2015-04-29 芜湖市万华塑料制品有限公司 绝缘骨架下支架
CN104578481B (zh) * 2014-12-12 2018-04-17 芜湖市万华塑料制品有限公司 绝缘骨架
CN106787279A (zh) * 2015-11-20 2017-05-31 博世汽车部件(长沙)有限公司 定子及包括其的电机
DE102021203989A1 (de) 2021-04-21 2022-10-27 Robert Bosch Gesellschaft mit beschränkter Haftung Elektrische Antriebseinheit und ein Verfahren zum Herstellen einer solchen
CN115528867B (zh) * 2022-10-17 2025-09-05 湖南环伟智能装备有限公司 一种定子连接盘预压装配装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4340829A (en) * 1979-06-22 1982-07-20 Sheller Globe Corporation Molded end coil insulator
US5008572A (en) * 1989-03-13 1991-04-16 Pacific Scientific Company Encapsulated motor with precision bearing registration
CN1578064A (zh) * 2003-07-11 2005-02-09 株式会社萌力克 用于旋转电机电枢的绕线架
JP4287215B2 (ja) * 2003-07-11 2009-07-01 ヤマハモーターエレクトロニクス株式会社 回転電機の電機子のボビン
TW200824224A (en) * 2006-11-17 2008-06-01 Lidashi Industry Co Ltd A stator structure
DE102008055731B4 (de) * 2008-11-04 2014-07-31 Knf Neuberger Gmbh Bürstenloser Gleichstrommotor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104578480A (zh) * 2014-12-12 2015-04-29 芜湖市万华塑料制品有限公司 绝缘骨架上支架
CN104578480B (zh) * 2014-12-12 2018-02-09 江苏智慧优视电子科技有限公司 绝缘骨架上支架

Also Published As

Publication number Publication date
CN104871405B (zh) 2017-09-12
CN104871405A (zh) 2015-08-26
WO2014095551A3 (fr) 2014-12-31
DE202012012647U1 (de) 2013-10-17
DE102013213449A1 (de) 2014-06-26

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