EP0513015A1 - Fixation pour un enroulement d'excitation d'un moteur electrique - Google Patents

Fixation pour un enroulement d'excitation d'un moteur electrique

Info

Publication number
EP0513015A1
EP0513015A1 EP19910901270 EP91901270A EP0513015A1 EP 0513015 A1 EP0513015 A1 EP 0513015A1 EP 19910901270 EP19910901270 EP 19910901270 EP 91901270 A EP91901270 A EP 91901270A EP 0513015 A1 EP0513015 A1 EP 0513015A1
Authority
EP
European Patent Office
Prior art keywords
winding
pole
holder
electric motor
housing
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Withdrawn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
EP19910901270
Other languages
German (de)
English (en)
Inventor
Hans Wuerth
Werner Rometsch
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
Publication of EP0513015A1 publication Critical patent/EP0513015A1/fr
Withdrawn legal-status Critical Current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
    • H02K3/46—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
    • 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

Definitions

  • the invention relates to a holder for an excitation winding of an electric motor accommodated in a pole housing and cooperating with a pole.
  • the holder according to the invention with the features mentioned in claim 1 has the advantage that the holding forces are balanced. Excessive tensioning of the winding and thus damage, particularly its powder coating, is practically excluded. A point-like overloading of the winding is avoided by an elastically resilient winding holder, which serves to transmit the force between the pole piece and the winding.
  • winding holder is designed as a band encompassing the pole, from which elastically yielding halves arise.
  • material for the winding holder By selecting the material for the winding holder, its spring properties can be predetermined.
  • the winding holder is essentially rectangular and in which resiliently resilient tabs arise from the longitudinal and / or transverse sides, which serve as holding arms.
  • Such a winding holder is particularly simple and therefore inexpensive to manufacture.
  • the pole is essentially rectangular. It is therefore simple and inexpensive to manufacture.
  • an embodiment of a holder is preferred in which the pole has at least one is provided with a projection which transmits the clamping force from the pole to the winding holder, in which the projection engages in a suitable opening in the winding holder. In this way, a simple assembly of the winding in the pole housing is possible.
  • the winding holder is designed as a winding carrier.
  • the excitation winding can be combined with the winding support or holder even before assembly in the electric motor and can therefore be installed particularly easily.
  • the pole only needs to be guided through the central opening of the winding support and screwed onto the pole housing by means of a screw penetrating the pole.
  • FIG. 1 shows a bottom view of a first exemplary embodiment of a winding holder
  • FIG. 2 shows a side view of the winding holder according to FIG. 1;
  • FIG. 3 shows a view of the end face of the winding holder according to FIGS. 1 and 2;
  • FIG. 4 shows a bottom view of a second exemplary embodiment of a winding holder;
  • FIG. 5 shows a side view of the winding holder shown in FIG. 4;
  • FIG. 6 shows a view of the end face of the winding holder shown in FIGS. 4 and 5;
  • FIG. 7 shows a plan view of a pole with a plurality of projections engaging in a winding holder
  • FIG. 9 shows a partial section through a pole housing with a pole attached to it, a winding holder and an excitation winding.
  • the winding holder 1 shown in Figure 1 is substantially rectangular.
  • the transverse sides 3 and 5 form the upper side of a symmetrical trapezoid, from the inclined side surfaces of which arms 7 formed as tabs spring, which are essentially square in plan view.
  • the first embodiment of the winding holder also serves as a winding carrier.
  • the applied winding is through optimally supports the holding arms, the windings surrounding the base body 9, which is formed by the transverse walls 3 and 5 and by the longitudinal walls 11.
  • the winding holder 1 consists of a continuous band which is clamped here on its long side 11 to form a closed ring.
  • the clamp connection 13 can be seen from the side view of the first exemplary embodiment of the winding holder 1 according to FIG. 2.
  • FIG. 4 shows a second exemplary embodiment of a winding holder 20, the basic shape of which is essentially rectangular.
  • the holding arms 27 designed as tabs originate from the longitudinal sides of the base body 29 of the winding holder 20.
  • the base body 29 is in turn formed from a continuous band which is formed by a clamp 33 to form a closed ring.
  • FIG. 6 shows that the holding arms 27, similar to the first embodiment of the winding holder 1, do not run parallel to the top of the base body 29, but are slightly curved.
  • FIG. 7 shows' a pole 40, whose shape is adapted here to that of the second embodiment of the Wicklungshal ⁇ ters 20 according to FIG. 4
  • the pole is therefore essentially rectangular, its corners being rounded.
  • the end faces of the pole essentially trapezoidal, so that it can be inserted into the interior enclosed by the base body 9 of the winding support 1.
  • the pole 40 shows a central central opening 45 through which a fastening screw can be passed.
  • FIG. 8 in which a projection 43 is shown in a partial section, the projections are like this arranged that they engage in the associated openings 31 in the longitudinal wall 21 in the winding support according to Figure 4. In the first exemplary embodiment according to FIG. 4, the projections would lie on the lower edge of the base body 9.
  • FIG. 9 shows a partial section through a pole housing 50 of an electric motor.
  • a pole is screwed to the inside of the pole housing wall 51 by means of a screw 53 penetrating the housing wall, which pole corresponds here to the pole 40 shown in FIG.
  • the projections 43 originating from the longitudinal wall of the pole 40 penetrate the longitudinal wall 21 of the winding carrier 20 in the region of the opening 31.
  • the distance of the lower edge of the projection 43 from the underside of the pole 40 is selected such that the winding holder 20 is pressed with its lower edge onto the inside of the pole housing wall 51 by the screwed pole 40.
  • the holding arms 27 resiliently press an excitation winding 60 indicated here resiliently against the inside of the pole housing wall 51.
  • the winding was pressed directly against the wall of the pole housing by means of pole shoe tabs extending laterally from the pole, there is no direct introduction of force through the pole screwed to the wall the excitation winding takes place. Due to the conventional rigid pole shoe flaps, the excitation winding was deformed during assembly in the pole housing, so that the powder coating of the winding tore open.
  • the pole is clamped to the pole housing wall 51 in a conventional manner by means of a screw 53. The pole engages with the projections 43 in the winding holder 20 and also presses it against the inside of the housing wall.
  • the winding holder which can also serve as a winding support at the same time, is made of an elastically resilient material, with the choice of material, e.g. B. spring steel sheet, the clamping forces can be selected and adapted to the particular installation.
  • the pole 40 is essentially cuboid in structure and can therefore be produced inexpensively.
  • the winding holder 1 shown in FIG. 1 which also serves as the winding support, it is ensured that the excitation winding 60 is acted upon on its curved narrow sides by a tensioning force with which it rests on the inside of the pole housing. As a result, deformations of the excitation winding are highly likely locked out.
  • the holding arms 27 are particularly large, so that a secure hold of the excitation winding in the pole housing is ensured even with a relatively low contact force.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Motor Or Generator Frames (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Gas Exhaust Devices For Batteries (AREA)
  • Primary Cells (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

Il est proposé une fixation pour l'enroulement d'excitation (60) d'un moteur électrique. Ledit enroulement, logé dans une carcasse polaire (51), coopère avec un pôle (40) et se caractérise par un support d'enroulement (20) susceptible d'être serré par le pôle (40) fixable à la carcasse polaire (52). Ledit support d'enroulement présente au moins un bras de support élastique (27) soumettant l'enroulement d'excitation à un effort de serrage. Grâce au fait qu'est évitée l'introduction d'un effort direct par le pôle dans l'ensemble d'enroulements, des déformations et donc des fissures dans le corps d'enroulement sont pratiquement exclues.
EP19910901270 1990-01-30 1991-01-09 Fixation pour un enroulement d'excitation d'un moteur electrique Withdrawn EP0513015A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904002577 DE4002577A1 (de) 1990-01-30 1990-01-30 Halterung fuer eine erregerwicklung eines elektromotors
DE4002577 1990-01-30

Publications (1)

Publication Number Publication Date
EP0513015A1 true EP0513015A1 (fr) 1992-11-19

Family

ID=6399005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910901270 Withdrawn EP0513015A1 (fr) 1990-01-30 1991-01-09 Fixation pour un enroulement d'excitation d'un moteur electrique

Country Status (6)

Country Link
EP (1) EP0513015A1 (fr)
JP (1) JPH05504250A (fr)
AU (1) AU638528B2 (fr)
BR (1) BR9105967A (fr)
DE (1) DE4002577A1 (fr)
WO (1) WO1991011844A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19622186A1 (de) * 1996-06-03 1997-12-04 Hilti Ag Elektromotor
JP5391325B1 (ja) 2012-06-01 2014-01-15 ファナック株式会社 電動機にコイルを固定するコイル固定装置、及び該コイル固定装置を備えた電動機
CN109119562B (zh) * 2018-08-29 2021-09-28 义乌市坤玥玩具有限公司 锂电池组

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1414773A (en) * 1917-04-17 1922-05-02 Jeffrey Mfg Co Coil retainer
GB360202A (en) * 1929-11-14 1931-11-05 British Thomson Houston Co Ltd Improvements in and relating to spool bodies for electrical apparatus
US2300864A (en) * 1940-10-26 1942-11-03 Westinghouse Electric & Mfg Co Electromagnetic coil mounting
DD96123A1 (fr) * 1972-04-20 1973-03-12
JPS57139914A (en) * 1981-02-20 1982-08-30 Mitsubishi Electric Corp Manufacture of insulated coil
US4633114A (en) * 1985-09-26 1986-12-30 General Electric Company Motor coil retention apparatus
US4816710A (en) * 1988-01-22 1989-03-28 Prestolite Electric Incorporated Field assembly insulator
US4852246A (en) * 1988-11-07 1989-08-01 Rochester D Eugene Method of insulating a field winding coil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9111844A1 *

Also Published As

Publication number Publication date
WO1991011844A1 (fr) 1991-08-08
AU6969891A (en) 1991-08-21
AU638528B2 (en) 1993-07-01
DE4002577A1 (de) 1991-08-01
BR9105967A (pt) 1992-11-03
JPH05504250A (ja) 1993-07-01

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