WO1995008205A1 - Support de balai - Google Patents

Support de balai Download PDF

Info

Publication number
WO1995008205A1
WO1995008205A1 PCT/EP1994/002923 EP9402923W WO9508205A1 WO 1995008205 A1 WO1995008205 A1 WO 1995008205A1 EP 9402923 W EP9402923 W EP 9402923W WO 9508205 A1 WO9508205 A1 WO 9508205A1
Authority
WO
WIPO (PCT)
Prior art keywords
brush
box
brush box
receptacle
feature
Prior art date
Application number
PCT/EP1994/002923
Other languages
German (de)
English (en)
Inventor
Jürgen Bormann
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP94927544A priority Critical patent/EP0719466B1/fr
Priority to SK350-96A priority patent/SK282560B6/sk
Priority to DE59401737T priority patent/DE59401737D1/de
Publication of WO1995008205A1 publication Critical patent/WO1995008205A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/38—Brush holders

Definitions

  • the invention relates to a brush holder according to claim 1.
  • Such brush holders are provided in particular for use in low-noise commutator motor drives in which the brush holders holding and guiding the brush boxes are held as firmly as possible to a large mass of the motor in order to minimize operational vibration accelerations to be coupled as a brush box holder with the interposition of a plastic insulating support.
  • the brush boxes which are usually formed from metal as a stamped and bent part and are therefore subject to tolerances, are accommodated by an enclosing cavity of the plastic carrier, fine machining processes to compensate for the fit with excessive tolerances are usually necessary before final assembly. If the plastic carriers are in two parts In such a way that the brush boxes can first be inserted into a semi-mold and then pressed tightly against the counterpart of a second closing carrier part, there is a risk of inadmissible deformation of the brush boxes with excessive tolerances.
  • FIG. 1 shows a cross section through an elastically deformable brush box according to the invention with a brush guided therein
  • FIG. 2 shows the receptacle for the brush box according to FIG. 1 in a plastic brush box holder fastened to a bearing plate
  • FIG. 3 shows the brush box according to FIG. 1 before its press fit deformation
  • FIG. 4 3 after a press fit deformation
  • FIG. 5 the brush box according to FIG. 1 with additionally molded fixing hooks for positive locking in the brush box holder
  • 6 shows the longitudinal top view of a brush box according to
  • 1, 7 shows an alternative embodiment of a brush box to FIG.
  • FIG. 1 shows in cross section a brush box 2 according to the invention, in which an essentially rectangular brush 3 is held in a guided manner.
  • the brush box is punched out of sheet metal and is rolled into a closed box, the longitudinal edges of which lie in front of one another in the area of the transverse side faces 3.4 of the brush 3 and are preferably interlocked with one another by dovetail-like connections.
  • the brush box 2 preferably in the area of the longitudinal side surfaces 3.1, -3.2 of the brush, is spaced apart from the pressure surface shoulders 2.5, -2.6 in such a way that the brush box 2, when pressed into a receptacle 1.1, is preferably a plastic carrier and on the end plate 4 of a collector motor attachable brush plate 1 in the area of their pressure surfaces 1.11, -1.12 can be fixed in the press fit with elastic deformation .; for this purpose, the pressure surface shoulders 2.5, 2.6 of the brush box 2 are shaped with a corresponding oversize a relative to the width of the receptacle 1.1 of the brush plate 1.
  • the size of the pressing force is essentially determined by the oversize a of the fit and the section modulus of the sheet metal cross section of the brush box 2, for its elastic deformability according to an embodiment of the invention above and below the pressure surface heels 2.5; 2.6 elastic heels 2.1- 2.4 are provided in the opposite side surfaces of the brush box 2.
  • the elastic paragraphs 2.1-2.4 are particularly simple in terms of production technology in the manufacture of the brush box 2 due to weak points in the form of punched-out openings 2.7 according to FIG. 6 or punched-in notches 2.8 reached according to FIG 7; the punched out or punched-in weak points are preferably in the area between the pressure surface paragraphs 2.5; 2.6 on the one hand and the rest, in particular for guiding the longitudinal side surfaces 3.1; 3.2 of the brush 3 serving part of the brush box 2; in the area of the narrower transverse side surfaces 3.3; 3.4, the brush box 2 lies essentially over the entire surface with guide play.
  • a spring characteristic of the receptacle 1.1 of the brush plate 1 can be dispensed with and this can thus be made rigid.
  • the receptacle 1.1 is preferably U-shaped with a bearing plate L in the axial direction of the motor and thus essentially perpendicular to the bearing plate L receiving the brush plate 1, such that the brush box 2 is similar in the case of an axial superstructure assembly, which can preferably be accomplished by manipulators like the other motor components to be assembled, can be fed in the axial direction and fixed in the receptacle 1.1.
  • fixing hooks 2.9 can be punched and laterally bent on the spaced-apart longitudinal sides of the brush box 2, as shown in FIGS. 5, 6, which hooks 2 are pressed when the brush box 2 is pressed into the receptacle 1.1 snap into corresponding fixing openings 1.2 of the brush plate 1.

Landscapes

  • Motor Or Generator Frames (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

Pour obtenir un montage simple d'une cage porte-balais (2) silencieuse pouvant être enfoncée par pression de manière élastique dans la cavité (1.1) d'un support de cage porte-balais (1), au moins une face latérale de la cage porte-balais (2) comporte une partie saillante (2.1-2.4) élastique située à distance de la face latérale du balai (3) inséré, mais appuyant cependant sur la cavité (1.1), de manière que la cage porte-balais (2) puisse être fixée en ajustage serré dans la cavité (1.1) sans nuire au guidage des balais (3).
PCT/EP1994/002923 1993-09-15 1994-09-02 Support de balai WO1995008205A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP94927544A EP0719466B1 (fr) 1993-09-15 1994-09-02 Support de balai
SK350-96A SK282560B6 (sk) 1993-09-15 1994-09-02 Držiak kefy
DE59401737T DE59401737D1 (de) 1993-09-15 1994-09-02 Bürstenhalterung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP93114882.9 1993-09-15
EP93114882 1993-09-15

Publications (1)

Publication Number Publication Date
WO1995008205A1 true WO1995008205A1 (fr) 1995-03-23

Family

ID=8213270

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/002923 WO1995008205A1 (fr) 1993-09-15 1994-09-02 Support de balai

Country Status (6)

Country Link
EP (1) EP0719466B1 (fr)
CZ (1) CZ285974B6 (fr)
DE (1) DE59401737D1 (fr)
SK (1) SK282560B6 (fr)
TR (1) TR28171A (fr)
WO (1) WO1995008205A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002037619A1 (fr) * 2000-11-03 2002-05-10 Hoffmann & Co Elektrokohle Aktiengesellschaft Configuration de balai destinee a des moteurs electriques
WO2004038749A1 (fr) * 2002-10-21 2004-05-06 BSH Bosch und Siemens Hausgeräte GmbH Procede et dispositif de fabrication d'un ensemble balai

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE902881C (de) * 1938-11-20 1954-01-28 Siemens Ag Buerstenfuehrung mit Pressstoffmantel
EP0096158A1 (fr) * 1982-06-03 1983-12-21 Vorwerk & Co. Interholding GmbH Porte-balai pour moteurs électriques pourvus d'une bobine d'anti-parasitage, notamment pour des appareils électrodomestiques tels que des aspirateurs ou appareils semblables
DE8913549U1 (de) * 1988-11-30 1990-03-15 VEB Elektromotorenwerk Schleusingen, DDR 6056 Schleusingen Anordnung zur Herstellung von elektrischen Verbindungen in einem Elektromotor kleiner Leistung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE902881C (de) * 1938-11-20 1954-01-28 Siemens Ag Buerstenfuehrung mit Pressstoffmantel
EP0096158A1 (fr) * 1982-06-03 1983-12-21 Vorwerk & Co. Interholding GmbH Porte-balai pour moteurs électriques pourvus d'une bobine d'anti-parasitage, notamment pour des appareils électrodomestiques tels que des aspirateurs ou appareils semblables
DE8913549U1 (de) * 1988-11-30 1990-03-15 VEB Elektromotorenwerk Schleusingen, DDR 6056 Schleusingen Anordnung zur Herstellung von elektrischen Verbindungen in einem Elektromotor kleiner Leistung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002037619A1 (fr) * 2000-11-03 2002-05-10 Hoffmann & Co Elektrokohle Aktiengesellschaft Configuration de balai destinee a des moteurs electriques
DE10054537A1 (de) * 2000-11-03 2002-06-06 Hoffmann & Co Elektrokohle Ag Bürstenanordnung für Elektromotoren
WO2004038749A1 (fr) * 2002-10-21 2004-05-06 BSH Bosch und Siemens Hausgeräte GmbH Procede et dispositif de fabrication d'un ensemble balai
CN1320575C (zh) * 2002-10-21 2007-06-06 Bsh博施及西门子家用器具有限公司 制造一种电刷装置的方法和装置

Also Published As

Publication number Publication date
EP0719466B1 (fr) 1997-01-29
EP0719466A1 (fr) 1996-07-03
SK35096A3 (en) 1997-02-05
CZ285974B6 (cs) 1999-12-15
CZ72096A3 (en) 1996-06-12
TR28171A (tr) 1996-02-29
SK282560B6 (sk) 2002-10-08
DE59401737D1 (de) 1997-03-13

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