WO2004021522A1 - Elektrische maschine mit bürstenträger - Google Patents
Elektrische maschine mit bürstenträger Download PDFInfo
- Publication number
- WO2004021522A1 WO2004021522A1 PCT/DE2003/000766 DE0300766W WO2004021522A1 WO 2004021522 A1 WO2004021522 A1 WO 2004021522A1 DE 0300766 W DE0300766 W DE 0300766W WO 2004021522 A1 WO2004021522 A1 WO 2004021522A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- brush holder
- quiver
- holder
- brush
- electrical machine
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- 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
- H01R39/383—Brush holders characterised by the electrical connection to the brush holder
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/14—Means for supporting or protecting brushes or brush holders
- H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
- H02K5/148—Slidably supported brushes
-
- 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
- H01R39/385—Means for mechanical fixation of the brush holder
-
- 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
- H01R39/388—Brush holders characterised by the material of the brush holder
Definitions
- the present invention relates to an electrical machine, in particular an electric motor, comprising a brush holder made of an insulating material and at least one brush arranged in a holder.
- Such electrical machines are known, for example, as commutator motors, in which a carbon brush is arranged as a brush in a quiver and is in sliding contact with a commutator arranged on the rotor. Power is transferred to a rotatably mounted rotor winding via the brush and the commutator.
- the brush carriers are designed such that they have a plastic cage into which the quiver is inserted and locked. The plastic cage completely encloses the quiver. If such motors are used, for example, as auxiliary drives in motor vehicles, for example as a windshield wiper motor or as a window regulator motor or the like, increased heat development can occur on the brushes.
- the electrical machine according to the invention with the features of claim 1 has the advantage that it enables improved heat dissipation at the quiver, since the quiver is made of an electrically conductive material and the quiver is exposed on the brush holder. That the quiver is not surrounded by an insulating plastic cage of the brush holder, so that an improved heat dissipation is possible since no insulating material completely encases the quiver. As a result, the electrical machine according to the invention can be used for increased use of temperature. Furthermore, the exposed arrangement of the quiver on the brush holder results in simpler assembly and significantly reduced possibilities for adding tolerances, since the installation and assembly tolerances existing in the prior art when inserting and crimping the quiver etc. are not present according to the invention. Since, furthermore, according to the invention, a connecting element for an electrical connection to the quiver is integrally formed in the brush holder, current is conducted through it
- connection element to the quiver This results in a further simplified structure and parts savings, since no separate power supply lines to the brush are necessary. This further simplifies assembly in particular, which means that significant cost reductions can be achieved.
- the exposed arrangement of the quiver also provides a significantly improved vibration behavior of the quiver, since there are no installation tolerances and / or play fits between the quiver and the brush holder.
- the connecting element in the brush holder is preferably designed as a grid element. This enables a flat electrical connection on the one hand and on the other hand a simple and secure connection between the brush holder and the grid element can be achieved in the manufacture of the brush holder through the free spaces in the grid.
- the quiver In order to enable a secure connection between the quiver and the grating element, the quiver has at least one area-like connecting region, at which it is connected to the grating element. This results in a flat connection between the two components, which enables reliable electrical contacting.
- the grid element and the quiver are particularly preferably connected to one another by means of welding, in particular by means of resistance welding. This achieves a mechanical connection between the two parts on the one hand and an electrical connection on the other
- the brush holder In order to enable a particularly simple manufacture of the brush holder, it is preferably made of a plastic " and the grid element is, for example, by means of during the manufacture of the brush holder
- the grid element is of course integrated into the brush holder in such a way that a free grid surface for connection to the holder remains on the surface of the brush holder for the electrical contact.
- a strand is preferably provided between these two parts.
- the grid element is preferably designed as a lead frame.
- the brushes arranged in the holder are preferably carbon brushes.
- the electrical machine is furthermore preferably an electric motor, in particular a commutator motor.
- FIG. 1 shows a schematic, perspective view of a brush holder according to an embodiment of the present invention
- Figure 2 is a schematic, perspective view of a quiver arranged on the brush holder on an enlarged scale.
- FIGS. 1 and 2 An exemplary embodiment of the present invention is described below with reference to FIGS. 1 and 2.
- the brush holder 1 shows a brush holder 1 for an electrical machine, in particular a commutator motor.
- the brush holder 1 is made of an electrically insulating material
- two quiver 2 are arranged on the brush holder 1.
- the two quivers 2 are arranged in such a way that they lie opposite one another by 180 ° in a central recess 12 in the brush holder 1.
- the central recess 12 serves in particular as a passage for a rotor shaft.
- the two quivers 2 are made of a conductive material, preferably a sheet metal material, and have an essentially rectangular basic shape. Inside the quiver 2 is one pocket-shaped recess for receiving the brushes 3 is provided.
- the quiver 2 can be produced, for example, by stamping and shaping from a sheet metal material.
- a two-dimensional connection area 6 and 7 is arranged on two opposite sides of the quiver 2.
- this area-like connecting region 6, 7 can be provided in a simple manner, for example by partially punching out and bending the sheet metal jacket of the quiver 2.
- an elongated recess 13 is formed in each case. The elongated recess 13 serves to lead through a strand 8, which is inserted into the carbon brush 3 at one end and at the other end with one
- the contact element 11 is connected.
- the contact element 11 is connected to the quiver 2. This creates a secure electrical connection between the holder 2 and the brush 3.
- the strand 8 is not absolutely necessary, since an electrical contact between the holder 2 and the brush 3 can also be made directly by the contact between the two components in the pocket-shaped recess of the holder. However, if there is play between these two components, the electrical contact cannot be provided as securely as when using a strand 8.
- 2 grating elements 4, 5 are integrally formed in the brush holder 1 in the brush holder 1 for each quiver.
- These grid elements 4, 5 are made of an electrically conductive material manufactured and can be inserted, for example, during the manufacture of the brush holder 1 by means of plastic injection as inserts into the injection mold for the brush holder.
- the grid elements 4, 5 serve to produce an electrical connection between the Chen
- the grid elements 4, 5 are formed at the positions in which the flat connection areas 6, 7 of the quiver 2 are arranged in the assembled state. In order to be inexpensive to manufacture, the grid elements 4, 5 are preferably designed as a lead frame.
- the surface-type connection regions 6, 7 joined to the lattice elements 4, 5, preferably by means of resistance welding, '.
- the quiver 2 is thereby simultaneously attached to the brush holder 1.
- the quiver 2 is preferably provided on each side of the holder 2.
- the quiver 2 according to the invention lies essentially freely on the brush holder 1, so that an improved heat dissipation from the quiver 2 is possible, since according to the invention the insulating sheath surrounding the quiver can be dispensed with.
- the brush holder according to the invention can also be used in electrical machines with higher temperatures on the quiver, since it has a significantly improved thermal behavior.
- connection between the holder 2 and the brush holder 1, which can only be released by destruction, furthermore results in a significantly improved vibration behavior, since according to the invention there are no installation tolerances and / or play fits. As a result, • there can be no negative addition of tolerances, as in the prior art. Furthermore, a significantly simplified assembly structure is provided according to the invention, mechanical damage, in particular, which can occur, for example, in the prior art on the latching elements or bending tabs etc., not being possible.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03729809A EP1537634A1 (de) | 2002-08-28 | 2003-03-11 | Elektrische maschine mit bürstenträger |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002139433 DE10239433A1 (de) | 2002-08-28 | 2002-08-28 | Elektrische Maschine mit Bürstenträger |
DE10239433.4 | 2002-08-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004021522A1 true WO2004021522A1 (de) | 2004-03-11 |
Family
ID=31197447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/000766 WO2004021522A1 (de) | 2002-08-28 | 2003-03-11 | Elektrische maschine mit bürstenträger |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1537634A1 (de) |
CN (1) | CN100342599C (de) |
DE (1) | DE10239433A1 (de) |
WO (1) | WO2004021522A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102649294A (zh) * | 2011-02-28 | 2012-08-29 | 江海青 | 无接触卷簧的石材切割机新装置 |
DE102013200140B4 (de) * | 2013-01-08 | 2014-10-30 | Robert Bosch Gmbh | Bürstenträger für einen Elektromotor, Herstellung eines Bürstenträgers sowie Elektromotor |
JP6303093B2 (ja) * | 2014-03-25 | 2018-04-04 | 多摩川精機株式会社 | 車載用アングル型コネクタ一体型サーボモータのコネクタの製造方法 |
FR3079365B1 (fr) * | 2018-03-23 | 2020-09-04 | Valeo Equip Electr Moteur | Porte-balais de demarreur de moteur thermique muni de cages a balais de forme modifiee |
DE102019100729B4 (de) | 2019-01-14 | 2022-09-29 | Bayerische Motoren Werke Aktiengesellschaft | Passiv gekühltes Bürstenmodul für ein Schleifringsystem einer stromerregten elektrischen Maschine, elektrische Maschine sowie Kraftfahrzeug |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2695968A (en) * | 1950-11-09 | 1954-11-30 | Eastern Metals Res Co Inc | Commutator with constant tension spring |
GB2191346A (en) * | 1986-06-06 | 1987-12-09 | Johnson Electric Ind Mfg | Insulating metallic brush cages for electric motors |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2096490U (zh) * | 1991-07-12 | 1992-02-19 | 浙江省余姚市电工电器厂 | 车辆用控制开关 |
DE4412319A1 (de) * | 1994-04-11 | 1995-10-12 | Teves Gmbh Alfred | Stromzuführungsanordnung für einen Elektromotor mit vier Bürsten |
DE4444645A1 (de) * | 1994-12-15 | 1996-06-20 | Teves Gmbh Alfred | Bürstentrageplatte |
DE19858233A1 (de) * | 1998-12-17 | 2000-06-29 | Bosch Gmbh Robert | Elektrischer Getriebemotor für Fahrzeugaggregate |
-
2002
- 2002-08-28 DE DE2002139433 patent/DE10239433A1/de not_active Withdrawn
-
2003
- 2003-03-11 WO PCT/DE2003/000766 patent/WO2004021522A1/de not_active Application Discontinuation
- 2003-03-11 EP EP03729809A patent/EP1537634A1/de not_active Withdrawn
- 2003-03-11 CN CNB038096811A patent/CN100342599C/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2695968A (en) * | 1950-11-09 | 1954-11-30 | Eastern Metals Res Co Inc | Commutator with constant tension spring |
GB2191346A (en) * | 1986-06-06 | 1987-12-09 | Johnson Electric Ind Mfg | Insulating metallic brush cages for electric motors |
Non-Patent Citations (1)
Title |
---|
See also references of EP1537634A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE10239433A1 (de) | 2004-03-04 |
CN1650488A (zh) | 2005-08-03 |
EP1537634A1 (de) | 2005-06-08 |
CN100342599C (zh) | 2007-10-10 |
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