CN103427289A - Carbon brush used for electric drill - Google Patents
Carbon brush used for electric drill Download PDFInfo
- Publication number
- CN103427289A CN103427289A CN2012101502843A CN201210150284A CN103427289A CN 103427289 A CN103427289 A CN 103427289A CN 2012101502843 A CN2012101502843 A CN 2012101502843A CN 201210150284 A CN201210150284 A CN 201210150284A CN 103427289 A CN103427289 A CN 103427289A
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- CN
- China
- Prior art keywords
- carbon brush
- electric drill
- cylindrical boss
- brush holder
- linking springs
- 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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Abstract
The invention discloses a carbon brush used for an electric drill. The carbon brush comprises a carbon brush base, a cylindrical boss and a connecting spring, wherein the cylindrical boss is arranged on the upper portion of the carbon brush base. One end of the connecting spring wraps the cylindrical boss on the carbon brush base and makes contact with the carbon brush base. The connecting spring can compensate the abrasion to the contacting surface of the carbon brush and transmit part of heat so that heat of the carbon brush base can be timely dissipated and the service life can be prolonged, and meanwhile currents can be conducted.
Description
Technical field
The present invention relates to a kind of carbon brush, in particular for the carbon brush of electric drill.
Background technology
The electric drill carbon brush is the device of transferring energy or signal between the standing part of motor or generator or other rotating machineries and rotating part, it is generally that pure carbon adds coagulating agent and makes, external form is generally square, is stuck on metallic support, on top, has wire to draw, in running up, the carbon brush conduction current, due to and the rotor of carbon brush holder and electric drill between CONTACT WITH FRICTION, make surface occur wear away and produce hot, heat can't shed in time, and shorten useful life.In addition, the carbon brush majority also comprises draws wire, carbon brush head, and this has not only increased the weight of carbon brush, and has increased manufacturing cost.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of electric drill carbon brush that can increase the service life.
For addressing the above problem, the present invention includes cylindrical boss, the linking springs of carbon brush holder, carbon brush holder top, the cylindrical boss on an end parcel carbon brush holder of linking springs also contacts with carbon brush holder.
Adopt said structure, linking springs is as an elastic force apparatus, linking springs is pressed on carbon brush in rotating shaft, promoting the close contact that carbon brush moved and kept this carbon brush and electric drill rotor, prevent the change of carbon brush position, linking springs can compensate the abrasion of the contact surface of carbon brush in addition, transmits a part of heat, the heat of carbon brush holder is distributed in time, increase the service life.In addition, linking springs is also as conductive component, conduction current.
The accompanying drawing explanation
Accompanying drawing 1 is front view of the present invention.
Accompanying drawing 2 is left views of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention will be further described.
This electric drill carbon brush, comprise carbon brush holder 1, the cylindrical boss 2 of carbon brush holder 1 top, linking springs 3, and the cylindrical boss 2 on an end parcel carbon brush holder 1 of linking springs 3 also contacts with carbon brush holder 1.The high 3mm of cylindrical boss on carbon brush holder, the high 14mm of carbon brush holder 1, linking springs is as an elastic force apparatus, linking springs is pressed on carbon brush in rotating shaft, is promoting the close contact that carbon brush moved and kept this carbon brush and this rotor, prevents the change of carbon brush position, linking springs can compensate the abrasion of the contact surface of carbon brush in addition, transmit a part of heat, the heat of carbon brush holder is distributed in time, increase the service life.In addition, linking springs is also as conductive component, conduction current.
Claims (1)
1. an electric drill carbon brush, it is characterized in that: comprise cylindrical boss (2), the linking springs (3) of carbon brush holder (1), carbon brush holder (1) top, the cylindrical boss (2) on an end parcel carbon brush holder (1) of linking springs (3) also contacts with carbon brush holder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101502843A CN103427289A (en) | 2012-05-16 | 2012-05-16 | Carbon brush used for electric drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101502843A CN103427289A (en) | 2012-05-16 | 2012-05-16 | Carbon brush used for electric drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103427289A true CN103427289A (en) | 2013-12-04 |
Family
ID=49651675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101502843A Pending CN103427289A (en) | 2012-05-16 | 2012-05-16 | Carbon brush used for electric drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103427289A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4876475A (en) * | 1988-04-28 | 1989-10-24 | Sunbeam Corporation | Brush holder with plastic cup to retain biasing spring |
| CN2155090Y (en) * | 1993-03-25 | 1994-02-02 | 新疆石河子八一制糖厂 | Generator slide ring carbon brush adjusting device |
| CN2452180Y (en) * | 2000-10-30 | 2001-10-03 | 江鸿仁 | Motor carbon brush stand with improved conducting copper base structure |
| CN201199605Y (en) * | 2008-04-08 | 2009-02-25 | 广东电动工具厂有限公司 | Position limiter for electric tool carbon brush |
| CN202586035U (en) * | 2012-05-16 | 2012-12-05 | 海门市海菱碳业有限公司 | Carbon brush used for electric drill |
-
2012
- 2012-05-16 CN CN2012101502843A patent/CN103427289A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4876475A (en) * | 1988-04-28 | 1989-10-24 | Sunbeam Corporation | Brush holder with plastic cup to retain biasing spring |
| CN2155090Y (en) * | 1993-03-25 | 1994-02-02 | 新疆石河子八一制糖厂 | Generator slide ring carbon brush adjusting device |
| CN2452180Y (en) * | 2000-10-30 | 2001-10-03 | 江鸿仁 | Motor carbon brush stand with improved conducting copper base structure |
| CN201199605Y (en) * | 2008-04-08 | 2009-02-25 | 广东电动工具厂有限公司 | Position limiter for electric tool carbon brush |
| CN202586035U (en) * | 2012-05-16 | 2012-12-05 | 海门市海菱碳业有限公司 | Carbon brush used for electric drill |
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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 |
Application publication date: 20131204 |