DE2724780A1 - Brush holder for electrical machine - has terminal strip formed by two in metallic guide bush and parallel to its axis - Google Patents

Brush holder for electrical machine - has terminal strip formed by two in metallic guide bush and parallel to its axis

Info

Publication number
DE2724780A1
DE2724780A1 DE19772724780 DE2724780A DE2724780A1 DE 2724780 A1 DE2724780 A1 DE 2724780A1 DE 19772724780 DE19772724780 DE 19772724780 DE 2724780 A DE2724780 A DE 2724780A DE 2724780 A1 DE2724780 A1 DE 2724780A1
Authority
DE
Germany
Prior art keywords
guide sleeve
guide bush
brush holder
terminal strip
bush
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.)
Granted
Application number
DE19772724780
Other languages
German (de)
Other versions
DE2724780C2 (en
Inventor
Horst Graefenschnell
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.)
Siemens AG
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Priority to DE19772724780 priority Critical patent/DE2724780C2/en
Priority to NZ18719778A priority patent/NZ187197A/en
Publication of DE2724780A1 publication Critical patent/DE2724780A1/en
Application granted granted Critical
Publication of DE2724780C2 publication Critical patent/DE2724780C2/en
Expired legal-status Critical Current

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
    • H01R39/40—Brush holders enabling brush movement within holder during current collection

Abstract

The brush holder has a metallic guide bush and can be fitted to an electrical machine. The carbon brush is linked to the guide bush which is in turn connected to a terminal strip for the supply cable. The terminal strip is formed by two slits in the wall of the guide bush. The slits start from one edge of the bush and are parallel to the longitudinal axis of the bush. Hence the terminal strip (4) is an integral part of the guide bush. The metallic guide bush (2) is contained in an insulated housing (1). The bush is produced as a stamping and the slits are incorporated in a single operation.

Description

Bürstenhalter für elektrische MaschinenBrush holders for electrical machines

Die Erfindung beziebt sich auf einen Bürstenhalter für elektrische Maschinen mit einer metallischen Führungshülse für die Kohlebürste und einer mit der Führungshülse elektrisch leitend verbundenen Anschlußlasche f':r die Anschlußleitung.The invention relates to a brush holder for electric Machines with a metallic guide sleeve for the carbon brush and one with the guide sleeve electrically conductively connected connection tab f ': r the connection line.

Ein solcher Bürstenhalter ist durch die DT-OS 17 53 023 bekannt.Such a brush holder is known from DT-OS 17 53 023.

Bei diesem Bürstenhalter ist an die Führungshülse eine gesonderte Anschlußfahne an geschweißt. Das eine Ende dieser AnschluB-fahne wird nnch dem Anschweißen etwas abgewinkelt und dient als Anschlußlasche. Beim Abwinkeln des betreffenden Endes der Anschlußfahne reißt oft die Schweißverbindung wieder ab, so daß der Bürstenhalter unbrauchbar ist. Darüber hinaus stellt die gesonderte Anschluf3fahne und das Verbinden derselben mit der Führungshülse einen nicht unerheblichen Aufwand dar.With this brush holder there is a separate one on the guide sleeve Connection lug welded on. One end of this connection lug will be welded on slightly angled and serves as a connection lug. When bending the concerned At the end of the connecting lug, the welded connection often tears off again, so that the brush holder is useless. In addition, the separate connection flag and the connection the same with the guide sleeve represents a not inconsiderable effort.

Der Erfindung liegt die Auf gabe zugrlmde, einen Bürstenhalter zu schaffe-l, bei dem die Anschlußlasche sicher mit der Führungshülse ver runden ist.The invention is based on the task of a brush holder schaffe-l, in which the connecting lug is securely rounded with the guide sleeve.

Die Lösung der gestellten Aufgabe gelingt bei einem Bürstenhalter der eingangs beschriebenen Art nach der Erfindung dadurch, daß die Anschlußlasche durch zwei Schlitze in der Wand der Führungshülse gebildet ist, die sich von dem einen Ende der Führungshülse ausgehend parallel zu deren Längsachse erstrecken. Die Anschlußlasche ist somit Bestandteil der Führungshülse, so daß ein gesondertes Verbinden von Anschlußlasche und Führungshülse entfällt.The task at hand is achieved with a brush holder of the type described above according to the invention in that the connection tab is formed by two slots in the wall of the guide sleeve, which extend from the extending one end of the guide sleeve starting parallel to its longitudinal axis. The connection tab is thus part of the guide sleeve, so that a separate There is no need to connect the connecting lug and the guide sleeve.

Anhand eines in der Zeichnung dargestellten Ausfahrungsbeispieles wird der Anmeldungsgegenstand nachfolgend naher beschrieben.Using an exemplary embodiment shown in the drawing the subject of the application is described in more detail below.

Bei dem in der Zeichnung in einem Längsschnitt dargestellten Bürstenhalter ist in eine Isolierstoffhülse 1 eine metallische Führungshülse 2 eingesetzt. In der einen Wand der FJhrungshülse 2 sind zwei Schlitze 3 vorgesehen, die sich vom kollektorseitigen Ende der FtÜirungshülse 2 ausgehend parallel zu deren Längsachse erstrecken. Durch die beiden Schlitze 3 wird somit in der entsprechenden Wand der Führungshülse 2 eine Anschlußlasche 4 gebildet.With the brush holder shown in the drawing in a longitudinal section a metallic guide sleeve 2 is inserted into an insulating sleeve 1. In the one wall of the guide sleeve 2 two slots 3 are provided, which extend from the The end of the guiding sleeve 2 on the collector side, starting parallel to its longitudinal axis extend. Through the two slots 3 is thus in the corresponding wall of the Guide sleeve 2, a connecting tab 4 is formed.

Die Anschlußlasche 4 bildet somit mit der Führungshülse 2 eine Einheit. Hierdurch entfällt nicht nur ein gesondertes Bauteil, sondern auch der entsprechende Aufwand fi,r das Verbinden von zwei gesonderten Teilen. Durch die Ausbildung der Anschlußlasche 4 unmittelbar an der Führungshülse 2 ist die bei dem bekannten Bürsterhalter bestehende Gefahr der Zerstörung der Verbindung zwischen der Führungshülse und der Anschlußlasche beseitigt.The connecting lug 4 thus forms a unit with the guide sleeve 2. This not only eliminates the need for a separate component, but also the corresponding one Effort for connecting two separate parts. By training the The connection tab 4 directly on the guide sleeve 2 is the one in the known brush holder existing risk of destruction of the connection between the guide sleeve and the Terminal lug eliminated.

Je nach Herstellungsverfahren für die Führungshü..lse 2 können die Schlitze 3 in einem Arbeitsgang beim Herstellen der Führungshülse 2 angebracht werden. Wird die Führungshülse 2 als Stanzbiegetoil hergestellt, so können die Schlitze 3 beim Stanzen des entsprechenden Blechteiles für die Führungshülse 2 gleich mit ausgestanzt werden. Auch bei einer Ausführung der Führungshülse 2 als Spritzgußteil lassen sich die Schlitze 3 in einem Arbeitsgang vorsehen.Depending on the manufacturing process for the guide sleeve 2, the Slots 3 are attached in one operation when producing the guide sleeve 2. If the guide sleeve 2 is produced as a stamped and bent part, the slots 3 when punching the corresponding sheet metal part for the guide sleeve 2 at the same time be punched out. Even if the guide sleeve 2 is designed as an injection-molded part the slots 3 can be provided in one operation.

1 Pate tanspruch 1 Figur L e e r s e i t e1 patent claim 1 figure L e r s e i t e

Claims (1)

Patentanspruch Bürstenhalter für elektrische Maschinen mit einer metallischen FUhrungshülse für die Kohlebürste und einer mit der Führungshülse elektrisch leitend verbundenen Anschlußlasche für die Anschlußleitung, d a d u r c h g e k e n n z e i c h n e t daß die Anschlußlasche durch zwei Schlitze in der Wand der Führungshülse gebildet ist, die sich von dem einen Ende der Führungshiilse ausgehend parallel zu deren Längsachse erstrecken.Brush holder for electrical machines with a metallic one Guide sleeve for the carbon brush and one electrically conductive with the guide sleeve connected connection lug for the connection line, d a d u r c h e k e n n z E i c h n e t that the connection lug through two slots in the wall of the guide sleeve is formed, which extends from one end of the guide sleeve starting in parallel extend to their longitudinal axis.
DE19772724780 1977-06-01 1977-06-01 Brush holders for electrical machines Expired DE2724780C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19772724780 DE2724780C2 (en) 1977-06-01 1977-06-01 Brush holders for electrical machines
NZ18719778A NZ187197A (en) 1977-06-01 1978-05-08 Cyclopropanecarboxylic acid anilides and fungicidal compositions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772724780 DE2724780C2 (en) 1977-06-01 1977-06-01 Brush holders for electrical machines

Publications (2)

Publication Number Publication Date
DE2724780A1 true DE2724780A1 (en) 1978-12-14
DE2724780C2 DE2724780C2 (en) 1985-04-04

Family

ID=6010431

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772724780 Expired DE2724780C2 (en) 1977-06-01 1977-06-01 Brush holders for electrical machines

Country Status (2)

Country Link
DE (1) DE2724780C2 (en)
NZ (1) NZ187197A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE880761C (en) * 1944-01-26 1953-06-25 Heem V D Nv Carbon brush holder for electrically powered hand tools with a metal housing
DE1588975A1 (en) * 1966-02-24 1970-05-21 Electrolux Ab Brush holder for electric commutator motors
US3710160A (en) * 1971-08-12 1973-01-09 Dynamics Corp America Motor brush assembly
US3849684A (en) * 1973-02-21 1974-11-19 Singer Co Assembly of externally accessible brushes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE880761C (en) * 1944-01-26 1953-06-25 Heem V D Nv Carbon brush holder for electrically powered hand tools with a metal housing
DE1588975A1 (en) * 1966-02-24 1970-05-21 Electrolux Ab Brush holder for electric commutator motors
US3710160A (en) * 1971-08-12 1973-01-09 Dynamics Corp America Motor brush assembly
US3849684A (en) * 1973-02-21 1974-11-19 Singer Co Assembly of externally accessible brushes

Also Published As

Publication number Publication date
DE2724780C2 (en) 1985-04-04
NZ187197A (en) 1980-10-08

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Legal Events

Date Code Title Description
OD Request for examination
D2 Grant after examination
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee