EP1647085A1 - Commutateur - Google Patents

Commutateur

Info

Publication number
EP1647085A1
EP1647085A1 EP04732936A EP04732936A EP1647085A1 EP 1647085 A1 EP1647085 A1 EP 1647085A1 EP 04732936 A EP04732936 A EP 04732936A EP 04732936 A EP04732936 A EP 04732936A EP 1647085 A1 EP1647085 A1 EP 1647085A1
Authority
EP
European Patent Office
Prior art keywords
commutator
lamellae
contacts
electric motor
armature
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Withdrawn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
EP04732936A
Other languages
German (de)
English (en)
Inventor
Christof Bernauer
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 EP1647085A1 publication Critical patent/EP1647085A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H02K13/04—Connections between commutator segments and windings
    • 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
    • H01R39/32—Connections of conductor to commutator segment

Definitions

  • the invention is based on a commutator according to the preamble of claim 1, as is known, for example, from US Pat. No. 6,057,626.
  • This commutator for an electric motor comprises fins and contact bridges, via which fins with the same electrical potential are connected to one another, and contacts arranged on fins for connecting wires of the armature winding.
  • this enables symmetrical armature currents to be forced or the number of carbon brushes required can be reduced to two.
  • the commutator according to the invention with the characterizing features of claim 1 has the advantage that the distance between two directly adjacent hooks is increased. This means that more space is available for wire contacting, and the number of commutator bars and anchor slots can be increased. In this way, symmetrical armature currents can also be forced or the number of carbon brushes required can be reduced to two.
  • the commutator for an electric motor comprises lamellae, contact bridges, via which lamellae with the same electrical potential are connected to one another, and contacts arranged on lamellae for connecting wires of the armature winding, not all lamellae having a contact for the armature winding.
  • the commutator preferably has n blades and m contacts, where m ⁇ n.
  • Hook commutators are particularly suitable because there is more space for wrapping with wire. Particularly with anchors with a higher number of poles (larger than two), higher useful numbers can be achieved, which reduces the ridge tension and thus the brush wear. It is therefore advantageous to make an armature for an electrical machine with an electric motor with such an armature.
  • Figure 2 shows the commutator of the electric motor in a perspective view.
  • an electric motor 10 is shown simplified in a longitudinal section.
  • the electric motor can be used in a motor vehicle, for example in a window regulator, wiper drive, blower, etc.
  • the electric motor 10 comprises a housing 12 and an armature 14 arranged therein.
  • the armature 14 has a shaft 16 and an armature package 17 with an armature winding (not shown in more detail).
  • the armature winding is connected to a commutator 20 via wires 18.
  • the commutator 20 comprises lamellae 22 with hooks 24 and lamellae 26 without hooks which are evenly distributed on the circumference and which are fastened on a base body 27 which has a bore 28 for the shaft 16.
  • the hooks 24 are contacts for connecting the wires 18 of the armature winding.
  • other contacts can also be provided.
  • slot commutators instead of the flake there is a slot into which the wire 18 is inserted. The slot is then embossed.
  • the slats 26 have no hook 24 for the armature winding.
  • contact bridges 30 are also provided, by means of which slats 22 with hooks 24 and slats 26 without hooks 24, which have the same electrical potential, are connected to one another. For the sake of simplicity, only one contact bridge 30 is shown. As a rule, the number of lamellae n is equal to the number of anchor grooves, not shown. In the case of a 4-pole electric motor 10, n / 2 contact bridges 30 would then be used between two mutually opposite slats 22, 26. The wires 18 of the armature winding are then contacted on the hook 24 - in this case directly opposite - with the same electrical potential. At least two loops of the wires 18 are then contacted on this hook 24.
  • a possible design variant would be a 4-pole motor 10 with an anchor 14 with 18 grooves and 18 slats with only 9 hooks 24 being contacted. The same principle applies to motors with a higher number of poles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc Machiner (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

L'invention concerne un commutateur (20) destiné à un moteur électrique (10) et comprenant des lamelles (22, 26), des ponts de contact (30) servant à relier entre elles les lamelles (22, 26) à potentiel électrique identique, ainsi que des contacts (24) placés sur des lamelles (22) et servant à la connexion de fils (18) de l'enroulement d'induit. Selon l'invention, seule chaque deuxième lamelle (22) est pourvue d'un crochet (24) pour les fils (18) de l'enroulement d'induit. On a ainsi plus de place pour enrouler le fil (18).
EP04732936A 2003-07-14 2004-05-14 Commutateur Withdrawn EP1647085A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10332016A DE10332016A1 (de) 2003-07-14 2003-07-14 Kommutator
PCT/DE2004/001008 WO2005008863A1 (fr) 2003-07-14 2004-05-14 Commutateur

Publications (1)

Publication Number Publication Date
EP1647085A1 true EP1647085A1 (fr) 2006-04-19

Family

ID=34041878

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04732936A Withdrawn EP1647085A1 (fr) 2003-07-14 2004-05-14 Commutateur

Country Status (6)

Country Link
EP (1) EP1647085A1 (fr)
JP (1) JP2006526380A (fr)
KR (1) KR20060032201A (fr)
CN (1) CN1823463A (fr)
DE (1) DE10332016A1 (fr)
WO (1) WO2005008863A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8080916B2 (en) * 2006-11-22 2011-12-20 Mitsuba Corporation Direct current motor
JP5009181B2 (ja) * 2007-05-11 2012-08-22 アスモ株式会社 短絡部材、整流子、電機子及び短絡部材の製造方法
CN102195432B (zh) * 2010-03-08 2015-01-07 德昌电机(深圳)有限公司 电机及其转子
CN101950905A (zh) * 2010-09-19 2011-01-19 温州科奇比威自动化设备有限公司 钩型换向器的换向片
CN102005864B (zh) * 2010-11-30 2012-08-01 中国计量学院 带有换向器的串励电机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749240C (fr) *
DE881701C (de) * 1943-06-18 1953-10-19 Aeg Periodisch betaetigtes Kontaktgeraet fuer mechanische Stromrichter
EP1073182A3 (fr) * 1999-07-30 2003-11-05 Siemens Canada Limited Commutateur croisé avec des vois additionnelles parallèles
DE10116182A1 (de) * 2001-03-31 2002-10-24 Bosch Gmbh Robert Kommutator für einen mehrpoligen Kommutatormotor und damit ausgestatteter Kommutatormotor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005008863A1 *

Also Published As

Publication number Publication date
JP2006526380A (ja) 2006-11-16
KR20060032201A (ko) 2006-04-14
CN1823463A (zh) 2006-08-23
WO2005008863A1 (fr) 2005-01-27
DE10332016A1 (de) 2005-02-10

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