EP0086386B1 - Elektrische Anschlusseinrichtung für eine Kohlebürste aufnehmende elektrisch leitfähige Bürstenhülse - Google Patents

Elektrische Anschlusseinrichtung für eine Kohlebürste aufnehmende elektrisch leitfähige Bürstenhülse Download PDF

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Publication number
EP0086386B1
EP0086386B1 EP83100880A EP83100880A EP0086386B1 EP 0086386 B1 EP0086386 B1 EP 0086386B1 EP 83100880 A EP83100880 A EP 83100880A EP 83100880 A EP83100880 A EP 83100880A EP 0086386 B1 EP0086386 B1 EP 0086386B1
Authority
EP
European Patent Office
Prior art keywords
guide shaft
brush
contact lug
electrically conductive
contact
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
EP83100880A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0086386A1 (de
Inventor
Franz Heidl
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 AT83100880T priority Critical patent/ATE20793T1/de
Publication of EP0086386A1 publication Critical patent/EP0086386A1/de
Application granted granted Critical
Publication of EP0086386B1 publication Critical patent/EP0086386B1/de
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

Definitions

  • the invention relates to an electrical connection device for an electrically conductive brush sleeve receiving a carbon brush, to which the carbon brush is in turn connected in an electrically conductive manner, in which device the brush sleeve is also inserted into a guide shaft of a brush holder assigned to an electrical machine and connected to an electrical feed line in. the insertable contact lug is in electrical connection.
  • connection device is known from US Pat. No. 2,748,301.
  • the contact lug is inserted laterally from the brush sleeve axially parallel to the latter in the guide shaft.
  • a receiving channel is provided in the wall of the guide shaft.
  • the contact lug is curved in the longitudinal direction, so that, despite the manufacturing tolerances of the individual parts, the contact lug is surely in contact with the brush sleeve.
  • a latching tongue is provided on the guide shaft in a corresponding recess in the wall of the guide shaft.
  • the contact tab must be specially designed to ensure its function in the known device, which requires a corresponding manufacturing effort. Because of the limited space, it is difficult to insert the contact tab into the guide shaft.
  • the invention is based on the object of designing a connection device of the type described at the outset in such a way that there is no need for a specially adapted shape of the contact tab for reliable contacting between the contact tab and the brush sleeve.
  • the object is achieved according to the invention in that the contact lug is inserted through an opening in the wall of the guide shaft and protrudes at least so far into the guide shaft that it is bent when the brush sleeve is inserted into the guide shaft.
  • the contact lug can be designed to be completely straight in the original state.
  • the contact lug By bending the contact lug when inserting it into the guide shaft, it is ensured that the contact lug always rests on the brush sleeve with a certain pressure, regardless of the dimensional tolerances of the individual parts, so that there is a good electrical connection between the contact lug and the brush sleeve.
  • By bending the contact lug inserted through the opening it is also mechanically fixed to the wall of the guide shaft without requiring any special precautions on the contact lug and when mounting it.
  • a jamming of the brush sleeve during insertion into the guide shaft is prevented by the opening being followed by a receiving groove extending in the insertion direction of the brush sleeve, the depth of which relative to the guide surface of the relevant wall of the guide shaft is at most equal to the material thickness of the contact tab and its length is at least equal to the length of the bent part of the contact lug.
  • the contact lug lies in the receiving channel when it is bent over and thus does not narrow the cross section of the guide shaft.
  • connection device results in connection with a universal motor connected in series and inserted in a plastic housing in that the guide shafts are integrally formed on the front side of the plastic housing and the contact lugs are connected to the stator winding of the motor and on which the winding supports of the stator winding support axially are attached above and that the opening for pushing through the contact tab is provided in each case in the wall part of the plastic housing delimiting the guide shaft.
  • a brush sleeve 3 is inserted into a guide shaft 2 provided on a brush holder 1.
  • the brush sleeve 3 is held in the guide shaft 2 by latching tongues 5 and 6 which are bent out of the wall of the brush sleeve 3 and which latch in a recess 7 provided in the one wall of the guide shaft 2.
  • a carbon brush 4 which is pressed by a spring 8 against the collector 9 of an electrical machine.
  • the spring 8 is supported at its end opposite the carbon brush 4 on a projection 10 bent out of the wall of the brush sleeve 3.
  • the electrical connection of the carbon brush 4 to the brush sleeve 3 can take place via the spring 8 or a separate wire which is connected to the carbon brush 4 and the brush sleeve 3.
  • the power supply to the brush sleeve 3 takes place via a contact lug 13 which is inserted through an opening 12 provided in the wall 11 of the brush holder delimiting the guide shaft 2.
  • a feed line 14 is connected to this contact tab 13.
  • the end 15 of the contact protruding into the guide shaft 2 is ne 13 bent and lies in a receiving groove 16.
  • the contact tab 13 is straight in the original state, so that it can be easily inserted through the opening 12.
  • Fig. 2 With 17 the stator and 18 the rotor of a universal motor, which is installed in a plastic housing 19.
  • two guide shafts 2 are formed, in each of which a brush sleeve 3 is inserted.
  • the winding heads 20 of the stator winding are supported by winding supports 21 and 22, respectively.
  • Axially projecting contact lugs 23 are fastened to the winding carriers 22 arranged on the collector side of the motor.
  • an opening 25 is provided, through which the contact lug 23 connected to the winding carrier 22 is inserted. The contact lug 23 is pushed through the opening 25 when the stand 17 is inserted into the plastic housing 19.

Landscapes

  • Motor Or Generator Current Collectors (AREA)
  • Motor Or Generator Frames (AREA)
  • Brushes (AREA)
  • Electroluminescent Light Sources (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Luminescent Compositions (AREA)
EP83100880A 1982-02-11 1983-01-31 Elektrische Anschlusseinrichtung für eine Kohlebürste aufnehmende elektrisch leitfähige Bürstenhülse Expired EP0086386B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83100880T ATE20793T1 (de) 1982-02-11 1983-01-31 Elektrische anschlusseinrichtung fuer eine kohlebuerste aufnehmende elektrisch leitfaehige buerstenhuelse.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823204865 DE3204865A1 (de) 1982-02-11 1982-02-11 Elektrische anschlusseinrichtung fuer eine kohlebuerste aufnehmende elektrisch leitfaehige buerstenhuelse
DE3204865 1982-02-11

Publications (2)

Publication Number Publication Date
EP0086386A1 EP0086386A1 (de) 1983-08-24
EP0086386B1 true EP0086386B1 (de) 1986-07-16

Family

ID=6155450

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83100880A Expired EP0086386B1 (de) 1982-02-11 1983-01-31 Elektrische Anschlusseinrichtung für eine Kohlebürste aufnehmende elektrisch leitfähige Bürstenhülse

Country Status (6)

Country Link
EP (1) EP0086386B1 (no)
AT (1) ATE20793T1 (no)
DE (2) DE3204865A1 (no)
DK (1) DK158427C (no)
FI (1) FI72412C (no)
NO (1) NO159224C (no)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3736535A1 (de) * 1987-10-28 1989-05-18 Hoffmann Elektrokohle Schleifkontaktanordnung, insbesondere fuer eine kohlebuerste
US4963779A (en) * 1989-05-15 1990-10-16 Black & Decker, Inc. Brush holder for an electric motor
DE4323413C2 (de) * 1993-07-13 1997-01-30 Atlanta Elektrosysteme Gmbh & Kontaktvorrichtung für eine Kohlebürste
DE19717594B4 (de) * 1997-04-25 2017-09-07 BSH Hausgeräte GmbH Bürstenanordnung an einer elektrischen Maschine
DE29719623U1 (de) * 1997-11-05 1997-12-18 Kaufmann GmbH, 41515 Grevenbroich Toranordnung für klimatisierte Bereiche
US7545072B2 (en) * 2005-10-13 2009-06-09 Culsforth Products, Inc. Resilient member for a brush holder assembly
DE102014225225B4 (de) * 2014-12-09 2022-09-15 Robert Bosch Gmbh Elektrische Maschine mit einer Potentialausgleichsvorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE668438C (de) * 1936-01-21 1938-12-03 Siemens Schuckertwerke Akt Ges Buerstenhalter fuer elektrische Maschinen
US2748301A (en) * 1953-07-21 1956-05-29 Lamb Electric Company Electric motor brush holder and frame adapted thereto
DE1233483B (de) * 1962-07-17 1967-02-02 Necchi Spa Buerstenhalter fuer eine elektrische Kollektormaschine
DE1763023A1 (de) * 1968-03-23 1971-07-01 Siemens Ag Buerstenhuelse einer elektrischen Maschine
NL6809048A (no) * 1968-06-27 1969-12-30

Also Published As

Publication number Publication date
DK56383D0 (da) 1983-02-10
DE3204865A1 (de) 1983-08-18
NO823901L (no) 1983-08-12
FI72412C (fi) 1987-05-11
DE3364455D1 (en) 1986-08-21
FI824055A0 (fi) 1982-11-25
NO159224B (no) 1988-08-29
FI72412B (fi) 1987-01-30
DK158427C (da) 1990-10-22
NO159224C (no) 1988-12-07
ATE20793T1 (de) 1986-08-15
DK158427B (da) 1990-05-14
DK56383A (da) 1983-08-12
FI824055L (fi) 1983-08-12
EP0086386A1 (de) 1983-08-24

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