CN1586027A - Carbon brush - Google Patents
Carbon brush Download PDFInfo
- Publication number
- CN1586027A CN1586027A CN02822592.9A CN02822592A CN1586027A CN 1586027 A CN1586027 A CN 1586027A CN 02822592 A CN02822592 A CN 02822592A CN 1586027 A CN1586027 A CN 1586027A
- Authority
- CN
- China
- Prior art keywords
- carbon brush
- shell
- spring
- gap
- disconnecting mechanism
- 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.)
- Pending
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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
- H01R39/59—Means structurally associated with the brushes for interrupting current
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
The invention relates to a carbon brush (10) with a disconnecting element (20) arranged in a recess .Said disconnecting element comprises a disconnection fitting which is pre-tensed by means of a spring and made of an electrically insulating material. In order to easily arrange the disconnecting element in the carbon brush with the desired spring pre-tensing, the disconnecting element (20) with the pre-tensed spring (24) is surrounded by a covering (26) made of an electrically insulating material, said covering being fixed in the recess (18) of the carbon brush (10).
Description
Technical field
The present invention relates to carbon brush, have be arranged in this carbon brush gap to small part by shell around disconnecting mechanism, comprise that being preferably in carbon brush by spring vertically goes up pre-tensioned, the pin that constitutes by electrical insulating material, as break connection, wherein, shell is fixed in the carbon brush, and the twisted wire that has conduction when needing.
Background technology
Particularly in picture electric tool or this class small-sized machine of household electrical appliance, require no transducer reprocessing ground to start a plurality of carbon brush equipments continuously.For making the first follow-up station set in inefficacy back that expires of equipping obtain enough durabilitys, tangible spot must enough be justified and not have to transducer.This point only at the carbon brush that used at that time when reaching its limit of wear, it is just possible that transducer is surpassed under the round situation of the coarse of tolerance level or burning.In addition, also must avoid twisted wire or tamping contact to contact, otherwise can damage transducer with transducer.
For this purpose, tripper and carbon brush are become integral body.In this regard, tripper is pin or the joint of being made up of electrical insulating material, applies power by means of spiral compression spring on the direction of carbon brush sliding surface.Spiral compression spring can be bearing on the small baffle, the latter in carbon brush by means of making powder firm by ramming or by means of perpendicular to the dielectric pin of tripper location.
If carbon brush reaches its limit of wear, break connection is exposed so, and this break connection as a result moves freely, and that is to say, by the supporting on transducer carbon brush is taken off from this transducer.
Owing to require to reach very high pre-tensioning, make powder or dielectric pin firm by ramming and must compensate very high power, to such an extent as to carbon brush can be broken when disconnecting mechanism is located by spiral compression spring.Aspect installation, also there is defective, because spiral compression spring must pre-tensioning.
The carbon brush that has a break connection for example EP 0 512 234 A2 or EP 28 04 547 A1 has disclosed.
Irrelevant with disconnecting mechanism, electric current can for example compress spring and conduct by twisted wire or by apply the pressure elements of power in the carbon brush configuration of transducer in carbon brush.
DE 74 04 456 U1 disclose a kind of carbon brush that has disconnecting mechanism of classifying and constituting.This disconnecting mechanism comprises the backing plate that passes shell.For avoiding backing plate slippage out of control, has the section of narrowing down in the shell.For disconnecting mechanism is located in order, shell must be packed in the blind hole of carbon brush like this together with backing plate, make spring in the shell by being bearing in the pre-tensioning of backing plate on the carbon brush.
Summary of the invention
The carbon brush that the objective of the invention is to so further formation the above-mentioned type can be located disconnecting mechanism without a doubt in carbon brush, wherein, spring can have and need not the desired pre-tensioning that compensates by independent instrument during installation.Guarantee simultaneously when disconnecting mechanism is located, not apply unallowed power to carbon brush by the power that spring produces.In addition, when being located in carbon brush, installs simply disconnecting mechanism.
This purpose is achieved thus according to the present invention, the disconnecting mechanism that promptly has a pre-tensioning spring by the shell of forming by electrical insulating material pin side like this around, make shell accept the pre-tensioning of spring.
Also shrinkable film can be used as shell.
According to the present invention, disconnecting mechanism is supplied with the carbon brush with gap as the batch parts that have as the pre-tensioning spring spare of this class of spiral compression spring, so that at first locate.Do not need to locate with batch parts tamping or with its spiral compression spring by small baffle or by the pin that insulating material is formed.
In other words, pack in the gap and the location together with the shell of this mechanism of local linking at least as the preprocessing unit that has pre-tensioning spring disconnecting mechanism.
For guaranteeing when carbon brush reaches the limit of wear it reliably to be taken off, further formation of the present invention proposes, and shell is at the switch contacts side perforating.As selecting or replenish, shell also can have material thickness less than the spring side in the switch contacts side.
By these measures, guarantee that assembly switch contacts-spring uses as the unit so on the one hand, make spring pre-tensioning in the scope that requires with respect to switch contacts, and need not spring is bearing in the carbon brush separately.Guarantee simultaneously by the carbon brush wearing and tearing switch element is being exposed under the situation, switch contacts can be passed shell, and switch contacts is bearing on the transducer on the one hand as a result, and spring takes off carbon brush from transducer on the other hand.
The special advantage of the present invention is to install simply, because do not need expensive installation automatics.Exactly only need common drilling equipment.The use of parts also can be carried out with the place is irrelevant in batches.Need not a lot of expenses can process or shift.
Therefore, the invention still further relates to a kind of method of equipping carbon brush, carbon brush has the disconnecting mechanism in this carbon brush gap of packing into, comprises by spring pre-tensioned, the pin that constitutes by electrical insulating material, as break connection, wherein, shell is fixed in the carbon brush, it is characterized in that, disconnecting mechanism is arranged on by electrical insulating material together with pre-tensioned spring to be formed, and accepts in the pre-tensioned shell of spring, packs in the gap and locatees in this gap as the batch parts.
Description of drawings
The feature that other details of the present invention, advantage and feature are not only quoted from claim, these claims-separately/or combination-, and from the following describes that the preferred embodiment of quoting by accompanying drawing is carried out.
Fig. 1 represents a cross section of carbon brush of the present invention.
Embodiment
In unique accompanying drawing, a cross section of carbon brush 10 is shown, this carbon brush is specially adapted to for example electric tool or garden water pump or household electrical appliance or these small-sized machines of washing machine motor, generally also is applicable to the motor of multichannel equipment, but is not limited thereto according to principle of the present invention.The transmission of electricity twisted wire 12 that illustrates on the principle in addition that relates to is equally located in the gap by means of tamping powder 14.Self-evident, also be applicable to carbon brush according to principle of the present invention, wherein, electric current conducts by unshowned compression spring, applies power to carbon brush by this spring on the direction of transducer, so that be close on this transducer.
Irrelevant with the application and the conduction thereof of carbon brush 10, preferably have the gap 18 that distributes along carbon brush longitudinal axis 16, the inside is provided with disconnecting mechanism 20.Disconnecting mechanism 20 comprises dielectric pin or the equivalent element of being made up of electrical insulating material, as break connection 22, is in carbon brush 10 under the effect of this strong pre-tensioning spring of picture spiral compression spring.
According to the present invention, the disconnecting mechanism that has break connection 22 and a spring 24 by shell 26 around.The unit that constitutes is like this located by for example adhesive 28 in gap 18.The pre-tensioning of spring 24 is accepted by shell 26, thereby carbon brush 10 does not bear load.Do not need as prior art disconnecting mechanism 20 tamping in the gap yet.
If carbon brush 10 reaches its limit of wear, both also exposed from shell 26 from carbon brush 10 in the transducer side zone of break connection 22 so, thereby break connection 22 can be on the transducer.The pre-tensioning of spring 24 descends simultaneously, and the result takes off carbon brush 10 from transducer.The carbon brush spark interrupts thus, thereby transducer can be owing to the carbon brush spark becomes coarse or not round.
By the disconnecting mechanism 22 that is under the pre-tensioning state is provided, simplified the equipment of the carbon brush of auto-cutout formation.
For guaranteeing when carbon brush reaches the limit of wear the reliable break connection 22 that discharges, shell 26 can for example punch in sliding surface zone 30 or have less than in the circumferential area of spring 24 or the material thickness in the scope.
Claims (10)
1. carbon brush (10), have be arranged in this carbon brush gap (18) to small part by shell around disconnecting mechanism (20), comprise that being preferably in carbon brush by spring (24) vertically goes up pre-tensioned, the pin that constitutes by electrical insulating material, as break connection (22), wherein, shell (26) is fixed in the carbon brush, and the twisted wire (12) that has conduction when needing, it is characterized in that, the disconnecting mechanism (20) that has pre-tensioning spring (24) by the shell of forming by electrical insulating material (26) pin side like this around, make shell accept the pre-tensioning of spring.
2. by the described carbon brush of claim 1, it is characterized in that shell (26) is made up of plastics.
3. by claim 1 or 2 described carbon brush, it is characterized in that shell (26) sticks in the gap (18) of carbon brush.
4. by aforementioned claim described carbon brush one of at least, it is characterized in that disconnecting mechanism (20) is welded by shell (26) end periphery.
5. by aforementioned claim described carbon brush one of at least, it is characterized in that shell (26) is at carbon brush sliding surface side perforating.
6. by aforementioned claim described carbon brush one of at least, it is characterized in that shell (26) has material thickness less than the spring side in carbon brush sliding surface side.
7. by aforementioned claim described carbon brush one of at least, it is characterized in that disconnecting mechanism (20) shrinks in film.
8. by aforementioned claim described carbon brush one of at least, it is characterized in that, pack in the gap (18) together with the shell of this mechanism of local linking (26) at least as the preprocessing unit that has pre-tensioning spring (24) disconnecting mechanism (20) and locate.
9. equip the method for carbon brush (10), carbon brush has the disconnecting mechanism (20) in this carbon brush gap (18) of packing into, comprise by spring (24) pre-tensionedly, the pin that is made of electrical insulating material is as break connection (22), wherein, shell is fixed in the carbon brush, it is characterized in that, disconnecting mechanism (20) is arranged on together with spring (24) to be made up of electrical insulating material, accept in the pre-tensioned shell of spring (26), pack in the gap (18) and in this gap, locate as the batch parts.
10. by the described method of claim 9, it is characterized in that shell (26) sticks in the gap (18).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10155991.7 | 2001-11-15 | ||
| DE10155991A DE10155991C2 (en) | 2001-11-15 | 2001-11-15 | carbon brush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1586027A true CN1586027A (en) | 2005-02-23 |
Family
ID=7705764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02822592.9A Pending CN1586027A (en) | 2001-11-15 | 2002-11-13 | Carbon brush |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1444757B1 (en) |
| CN (1) | CN1586027A (en) |
| AT (1) | ATE317161T1 (en) |
| DE (2) | DE10155991C2 (en) |
| WO (1) | WO2003043142A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1992451B (en) * | 2005-12-30 | 2010-12-01 | 申克碳化技术股份有限公司 | Carbon brush with disconnecting device |
| CN103181037A (en) * | 2010-10-22 | 2013-06-26 | 罗伯特·博世有限公司 | Carbon brush with disconnection apparatus |
| CN103427284A (en) * | 2012-05-14 | 2013-12-04 | 海门市海菱碳业有限公司 | Safety carbon brush for electric polisher |
| CN103427301A (en) * | 2012-05-18 | 2013-12-04 | 海门市华联电碳有限公司 | Carbon brush for safe electric hammer |
| CN103427280A (en) * | 2012-05-18 | 2013-12-04 | 海门市海菱碳业有限公司 | Carbon brush for automatic-stop type angle polishing machine |
| CN103427275A (en) * | 2012-05-17 | 2013-12-04 | 海门市海菱碳业有限公司 | Safety carbon brush of starting motor of automobile |
| CN101533985B (en) * | 2008-03-06 | 2015-03-25 | 申克碳化技术股份有限公司 | Method for producing contact device and the contact device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904146A (en) * | 2012-10-26 | 2013-01-30 | 海门市通达碳业有限公司 | Assembling method of electric brush assembly |
| DE102021107839A1 (en) * | 2021-03-29 | 2022-09-29 | Metabowerke Gmbh | Layered carbon brush for an electric motor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2227658B1 (en) * | 1973-04-26 | 1976-09-10 | Lorraine Carbone | |
| DE2804547A1 (en) * | 1978-02-03 | 1979-08-09 | Licentia Gmbh | Carbon brush for commutator motor - has insulated signalling contact embedded in it to form closed circuit when brush needs changing |
| DE3047421A1 (en) * | 1980-12-17 | 1982-07-15 | Ringsdorff-Werke GmbH, 5300 Bonn | SHUTDOWN BRUSH |
| DE4111206A1 (en) * | 1991-04-06 | 1992-10-08 | Schunk Kohlenstofftechnik Gmbh | COAL BRUSH |
-
2001
- 2001-11-15 DE DE10155991A patent/DE10155991C2/en not_active Expired - Fee Related
-
2002
- 2002-11-13 DE DE50205764T patent/DE50205764D1/en not_active Expired - Fee Related
- 2002-11-13 WO PCT/EP2002/012688 patent/WO2003043142A1/en not_active Application Discontinuation
- 2002-11-13 EP EP02781315A patent/EP1444757B1/en not_active Expired - Lifetime
- 2002-11-13 AT AT02781315T patent/ATE317161T1/en not_active IP Right Cessation
- 2002-11-13 CN CN02822592.9A patent/CN1586027A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1992451B (en) * | 2005-12-30 | 2010-12-01 | 申克碳化技术股份有限公司 | Carbon brush with disconnecting device |
| CN101533985B (en) * | 2008-03-06 | 2015-03-25 | 申克碳化技术股份有限公司 | Method for producing contact device and the contact device |
| CN103181037A (en) * | 2010-10-22 | 2013-06-26 | 罗伯特·博世有限公司 | Carbon brush with disconnection apparatus |
| CN103427284A (en) * | 2012-05-14 | 2013-12-04 | 海门市海菱碳业有限公司 | Safety carbon brush for electric polisher |
| CN103427275A (en) * | 2012-05-17 | 2013-12-04 | 海门市海菱碳业有限公司 | Safety carbon brush of starting motor of automobile |
| CN103427301A (en) * | 2012-05-18 | 2013-12-04 | 海门市华联电碳有限公司 | Carbon brush for safe electric hammer |
| CN103427280A (en) * | 2012-05-18 | 2013-12-04 | 海门市海菱碳业有限公司 | Carbon brush for automatic-stop type angle polishing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50205764D1 (en) | 2006-04-13 |
| DE10155991A1 (en) | 2003-06-05 |
| EP1444757A1 (en) | 2004-08-11 |
| DE10155991C2 (en) | 2003-12-24 |
| WO2003043142A1 (en) | 2003-05-22 |
| EP1444757B1 (en) | 2006-02-01 |
| ATE317161T1 (en) | 2006-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |