EP0148474B1 - Porte-balais pour machines électriques - Google Patents

Porte-balais pour machines électriques Download PDF

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Publication number
EP0148474B1
EP0148474B1 EP84115828A EP84115828A EP0148474B1 EP 0148474 B1 EP0148474 B1 EP 0148474B1 EP 84115828 A EP84115828 A EP 84115828A EP 84115828 A EP84115828 A EP 84115828A EP 0148474 B1 EP0148474 B1 EP 0148474B1
Authority
EP
European Patent Office
Prior art keywords
brush
holder
face
band spring
faces
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.)
Expired
Application number
EP84115828A
Other languages
German (de)
English (en)
Other versions
EP0148474A2 (fr
EP0148474A3 (en
Inventor
Winfried Kipke
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.)
Max Frost Maschinen- und Apparatebau
Original Assignee
Max Frost Maschinen- und Apparatebau
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 Max Frost Maschinen- und Apparatebau filed Critical Max Frost Maschinen- und Apparatebau
Priority to AT84115828T priority Critical patent/ATE30989T1/de
Publication of EP0148474A2 publication Critical patent/EP0148474A2/fr
Publication of EP0148474A3 publication Critical patent/EP0148474A3/de
Application granted granted Critical
Publication of EP0148474B1 publication Critical patent/EP0148474B1/fr
Expired legal-status Critical Current

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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
    • H01R39/41—Brush holders cartridge type
    • H01R39/415—Brush holders cartridge type with self-recoiling spring

Definitions

  • the invention relates to a brush holder for electrical machines with a brush holder box, in which a brush is slidably guided and with a rolling band spring, the rolled part of which is applied to generate a transverse force on the brush against an inclined surface connected to the brush holder box and the free-flowing end of which Brush acts in the sense of an axial displacement.
  • Such brush holders are known from DE-A-2405754.
  • the brush is guided by two side walls running parallel to each other and by the upper end wall of the brush holder box.
  • careful processing of the brush as well as the brush holder box is required, which represents a considerable cost. Due to the fact that the rolled-up part of the roll band spring rests against an inclined surface, a transverse force is exerted on the brush, by means of which the brush is pressed against the upper end wall of the brush holder box.
  • the present invention is therefore based on the object of designing a brush holder of the type specified in the introduction in such a way that the requirements imposed on it, in particular with regard to perfect guidance even after a long period of use and with a view to simple and robust, do not become jammed Brush-tending design are satisfactorily met.
  • This is achieved according to the invention in that the brush is positively guided in the brush holder box on its side facing away from the roll belt spring and in that a pressure slider, preferably having an inclined surface, is fastened to the guide surfaces of the brush holder box with the freely running end of the roll belt spring, which with a stop surface of the brush corresponding to the pressure slider in addition to the axial force, the transverse force is increased or reduced.
  • the brush holder box has two upper guide surfaces which run at an angle to one another, the brush likewise having two corresponding support surfaces which run at an angle to one another.
  • the brush holder box can then be directly connected to a busbar. Another advantage can be seen in the fact that the manufacturing costs are reduced to a minimum because only two contact surfaces have to be carefully processed and reinforcements can be dispensed with entirely.
  • the brush on its side facing away from the roller band spring has a straight end surface, between which and the inside of the upper web of the box there is a free space . Furthermore, spaces are provided between the brush and the side walls of the brush holder box.
  • the pressure sliding piece is guided in a cutout of a clamping bracket that supports the roll band spring.
  • the roll band spring is supported on the inclined surface with the interposition of a plastic sliding bearing.
  • the roll band spring is rotatably mounted on an axle for form stabilization, the axle being movably held on an inclined surface.
  • the invention also proposes that the roller band spring be provided with a coating of high static friction on its side facing the brush.
  • FIGS. 1 and 2 denotes a brush holder box which has two guide surfaces 2 and 3 which run at an angle to one another. At these two guide surfaces, the two side walls 4 and 5 adjoin at the bottom, which are angled inwards by a small amount by 90 ° at their lower ends and form guide surfaces 6 and 7, each with a groove 8 and 9 along the guide surfaces is provided in the side walls 4 and 5.
  • the inwardly angled side wall parts 10 and 11 1 downwardly extending parts 12 and 13, which are interconnected by a web 14. Behind this web 14, the profiled part 15 of a clamping bracket 16 is engaged, which further has an inclined surface 17 and a straight part 18. This straight part 18 is held laterally in the grooves 8 and 9.
  • the two guide surfaces 2 and 3 are in the upper Area of the brush holder box 1 connected by a straight web 28, the straight web 28 part of a fastening p rofils 29.
  • a free space 31 is provided between the inside of the web 28 and the straight upper end surface 30 of the brush 25 connecting the two support surfaces 25 ′ and 25 ′′, so that the brush 25 also reacts due to the transverse forces generated by the roller band spring 22 and the pressure sliding piece 20 longer period of use and the wear that is thereby possible on the support surfaces 25 'and 25 "is properly guided and pressed flat.
  • Another advantage of the free space 31 can be seen in the fact that no deposits can settle here.
  • further free spaces 32 and 33 are provided between the side walls 4 and 5 of the brush holder box and the brush 25, so that the brush 25 is actually only guided over its inclined surfaces 25 'and 25 "and is held in the correct position.
  • the exemplary embodiment according to FIG. 3 differs from that according to FIGS. 1 and 2 only in that the pressure sliding piece 20 'is not guided in a clamping bracket, but rather in a cutout 35 in the lower floor 37 connecting the side walls 36 to one another. Only one side wall of the side walls 36 is shown.
  • the roll band spring 22 ' is not supported on a clamping bracket. Rather, with the bottom 37 two inclined surfaces 38 have holders 39, on which an axis supporting the roller band spring 22 'is supported. The distance of the holder 39 from one another is greater than the width of the roller band spring 22 '.
  • the embodiment according to FIG. 4 is used when the spring 22 is either very strongly pre-tensioned and a lower transverse force is desired.

Landscapes

  • Motor Or Generator Current Collectors (AREA)

Claims (10)

1. Porte-balai pour machines électriques avec un boîtier porte-balai (1) dans lequel un balai coulissant (25) est asservi à un guidage, et avec un ressort-ruban enroulé (22, 23, 24) dont la partie enroulée (23) destinée à exercer une force transversale sur le balai (25), est appliquée contre une portée oblique (17) solidaire du boîtier porte-balai, et dont l'extrémité libre (24) exerce une poussée axiale sur le balai (25), caractérisé par le fait que le balai (25) n'est asservi à un guidage que sur son extrémité opposée au ressort-ruban enroulé (22 ou 22') dans le boîtier porte-balai (1), et que, pour atteindre la force d'application souhaitée de cette zone contre les surfaces de guidage (2, 3) du boîtier porte-balai (1) un patin (20) présentant une surface oblique de préférence (26), est fixé à l'extrémité libre du ressort-ruban enroulé (22 ou 22') et, par une surface de butée (27) du balai (25) correspondant au patin (20), augmente ou diminue la force transversale, en plus de la force axiale.
2. Porte-balai selon la revendication 1, caractérisé par le fait que le boîtier porte-balai (1 ) présente deux surfaces de guidage (2, 3) formant un angle entre elles, et que le balai (25) présente également deux surfaces de portée (25', 25") formant entre elles un angle correspondant.
3. Porte-balai selon les revendications 1 et 2, caractérisé par le fait que le balai (25) présente, sur son côté opposé au ressort-ruban enroulé (22 ou 22'), une extrémité (30), et qu'il existe un espace libre (31) entre cette extrémité (30) et la face intérieure de la paroi supérieure (28) du boîtier (1 ).
4. Porte-balai selon les revendications 1 à 3, caractérisé par un espace libre (32, 33) entre le balai (25) et les parois latérales (4, 5 ou 36) du boîtier porte-balai (1).
5. Porte-balai selon les revendications 1 à 4, caractérisé par le fait que le patin (20) est guidé grâce à une encoche (19) d'un étrier de blocage (16) s'appuyant sur le ressort-ruban enroulé (22).
6. Porte-balai selon les revendications 1 à 5, caractérisé par le fait que, grâce à l'interposition d'un palier lisse en matière plastique, le ressort-ruban enroulé (22 ou 22') s'appuie sur la surface oblique (17 ou 38).
7. Porte-balai selon les revendications 1 à 6, caractérisé par le fait que le ressort-ruban enroulé (22') est monté libre en rotation sur un axe (40), cet axe (40) étant mobile sur la surface oblique.
8. Porte-balai selon les revendications 1 à 7, caractérisé par le fait que le ressort-ruban enroulé (22 ou 22') est porvu, sur son côté faisant face au balai, d'un revêtement assurant une forte adhérence.
9. Porte-balai selon les revendications 1 à 4 et 6 à 8, caractérisé par le fait que les parois latérales (36) sont reliées entres elles par un fond (37), ce dernier présentant une encoche (35) pour le guidage du patin (20').
10. Porte-balai selon les revendications 1 à 4 et 6 à 9, caractérisé par le fait que des supports (39) présentant des surfaces obliques (38) sont solidaires du fond.
EP84115828A 1983-12-23 1984-12-19 Porte-balais pour machines électriques Expired EP0148474B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84115828T ATE30989T1 (de) 1983-12-23 1984-12-19 Buerstenhalter fuer elektrische maschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3346595A DE3346595C2 (de) 1983-12-23 1983-12-23 Bürstenhalter für elektrische Maschinen
DE3346595 1983-12-23

Publications (3)

Publication Number Publication Date
EP0148474A2 EP0148474A2 (fr) 1985-07-17
EP0148474A3 EP0148474A3 (en) 1985-08-14
EP0148474B1 true EP0148474B1 (fr) 1987-11-19

Family

ID=6217807

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84115828A Expired EP0148474B1 (fr) 1983-12-23 1984-12-19 Porte-balais pour machines électriques

Country Status (5)

Country Link
US (1) US4625136A (fr)
EP (1) EP0148474B1 (fr)
JP (1) JPS60227379A (fr)
AT (1) ATE30989T1 (fr)
DE (1) DE3346595C2 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189653A (en) * 1986-04-07 1987-10-28 Johnson Electric Ind Mfg Anti:chatter brush assembly
US5043619A (en) * 1990-03-26 1991-08-27 Helwig Carbon Products, Inc. Brush holder assembly
DE4014300A1 (de) * 1990-05-04 1991-11-14 Schunk Metall & Kunststoff Einrichtung zur uebertragung von stroemen
US5602957A (en) * 1993-06-07 1997-02-11 General Electric Company Permanent magnet direct current motor
US5717271A (en) * 1995-01-27 1998-02-10 Mitsuba Corporation Brush holder device and method of molding same
US6628036B1 (en) * 2002-05-08 2003-09-30 The United States Of America As Represented By The Secretary Of The Navy Electrical current transferring and brush pressure exerting spring device
GB0328386D0 (en) * 2003-12-06 2004-01-14 Johnson Electric Sa Brush holder assembly for an electric motor
DE102004026541A1 (de) * 2004-05-27 2005-12-22 Schunk Kohlenstofftechnik Gmbh Anordnung zum Führen einer Schichtkohlebürste
US7557485B1 (en) 2004-10-08 2009-07-07 The United States Of America As Represented By The Secretary Of The Navy Ion conducting electrolyte brush additives
DE102005034584B4 (de) * 2005-07-25 2007-09-20 Schunk Kohlenstoff-Technik Gmbh Kohlebürstenanordnung
US7179090B1 (en) 2005-12-08 2007-02-20 The United States Of America As Represented By The Secretary Of The Navy Integral dual-component current collection device
DE102006039594A1 (de) * 2006-08-23 2008-03-06 Temic Automotive Electric Motors Gmbh Gleichstrommaschine
US7696666B2 (en) 2006-10-06 2010-04-13 Remy Technologies, L.L.C. Dynamoelectric machine grommet
US7705512B2 (en) 2006-10-06 2010-04-27 Remy International, Inc. Dynamoelectric machine conductor
US7466056B2 (en) 2006-10-06 2008-12-16 Remi International, Inc Dynamoelectric machine brush holder assembly and method
CN101540466B (zh) * 2008-02-04 2012-10-03 德昌电机(深圳)有限公司 用于电机的碳刷组件及电机
JP6451247B2 (ja) * 2013-12-09 2019-01-16 株式会社デンソー ブラシ装置及びモータ
CN109616845A (zh) * 2018-12-21 2019-04-12 沧州华海风电设备科技技术开发有限公司 一种联体刷握
CN113572310B (zh) * 2021-07-27 2022-03-01 绍兴市上虞恒华电机有限公司 一种用于旋转电机的电刷架

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1546373A (en) * 1924-12-05 1925-07-21 Alexander W Farcus Brush holder for commutators
DE540786C (de) * 1927-10-25 1931-12-31 Siemens Schuckertwerke Akt Ges Buerstenhalter fuer elektrische Maschinen mit mindestens einer in einer Buerstentasche gefuehrten Buerste mit zur Laufachse parallelen Buerstenkanten
GB790247A (en) * 1955-06-23 1958-02-05 Lucas Industries Ltd Brush or other contact holders for dynamo-electric machines and other electric apparatus
GB842878A (en) * 1955-09-23 1960-07-27 Gen Electric Improvements in and relating to dynamo-electric machine commutator brush holder assemblies
US2881339A (en) * 1956-01-31 1959-04-07 Gen Electric Brush holder for dynamoelectric machines
US2840733A (en) * 1956-09-04 1958-06-24 Gen Electric Brush holder and spring assembly
US3158772A (en) * 1962-12-18 1964-11-24 Stackpole Carbon Co Twin electric brush assembly with pressure arm wedge
US3436577A (en) * 1966-01-10 1969-04-01 Gen Electric Brush holder construction
GB1269403A (en) * 1968-06-21 1972-04-06 Gen Electric Improvements in brush holding arrangements in dynamoelectric machines
DE1763926A1 (de) * 1968-09-07 1972-01-05 Schunk & Ebe Gmbh Buerstenhalter fuer elektrische Maschinen mit von zwei Buerstenseiten wirkender Druckvorrichtung
FR2039545A5 (fr) * 1969-04-15 1971-01-15 Ferraz & Cie
JPS5116603B1 (fr) * 1970-10-07 1976-05-26
FR2217828B1 (fr) * 1973-02-08 1978-08-04 Ferraz & Cie Lucien
US3983432A (en) * 1975-04-22 1976-09-28 Alexander Rankin Brush holder assembly

Also Published As

Publication number Publication date
DE3346595C2 (de) 1986-11-20
JPS60227379A (ja) 1985-11-12
EP0148474A2 (fr) 1985-07-17
US4625136A (en) 1986-11-25
ATE30989T1 (de) 1987-12-15
EP0148474A3 (en) 1985-08-14
JPH0244113B2 (fr) 1990-10-02
DE3346595A1 (de) 1985-07-04

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