CN103427269A - Compound carbon brush for electric drill - Google Patents
Compound carbon brush for electric drill Download PDFInfo
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- CN103427269A CN103427269A CN2012101503545A CN201210150354A CN103427269A CN 103427269 A CN103427269 A CN 103427269A CN 2012101503545 A CN2012101503545 A CN 2012101503545A CN 201210150354 A CN201210150354 A CN 201210150354A CN 103427269 A CN103427269 A CN 103427269A
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- carbon
- wire
- carbon brush
- electric drill
- brush
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Abstract
The invention discloses a compound carbon brush for an electric drill. The compound carbon brush comprises a carbon body, a connecting wire, a connecting spring and a connecting piece. The carbon body comprises a left carbon block and a right carbon block which are symmetrical, an adhesion layer is arranged between the two carbon blocks, the two carbon blocks adhere to form a whole through the adhesion layer, one end of the connecting wire is divided into a left wire and a right wire, the left wire and the right wire are connected with the left carbon block and the right carbon block respectively, the other end of the connecting wire is fixedly connected to the connecting piece, the connecting spring is sleeved on the connecting wire, one end of the connecting spring is contacted with the carbon body, the other end of the connecting spring is contacted with the connecting piece, and the bottom surface of the left carbon block and the bottom surface of the right carbon block are respectively provided with more than two grooves. A plurality of grooves are arranged at the bottom of the carbon body to assist the carbon brush in heat dissipation, working temperature of the carbon brush is reduced, and working performance of a motor is improved; an insulating adhesive layer is added in the middle of the carbon body, and commutation performance of the carbon brush can be improved.
Description
Technical field
The present invention relates to a kind of carbon brush, especially a kind of compound carbon brush for electric drill.
Background technology
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, in the time of electric machine rotation, electric energy is flowed to coil by phase changer.Carbon brush, as a kind of sliding contact part, is widely used in many electric equipments.Traditional carbon brush is generally that pure carbon adds coagulating agent and makes, and external form is generally square, and volume varies, and on top, has wire to draw, and wire is connected with contact pin, between wire and contact pin, spring is arranged.The motor speed of electric drill is higher, and when motor runs up, thereby carbon brush can produce heat by the high speed vibration, and, because the space between carbon body and carbon brush sleeve is minimum, heat is not easy to distribute, and carbon brush can produce temperatures involved machine operation performance; When motor runs up, because the thermal coefficient of expansion of carbon brush is less, easily cause the card brush, cause motor commutation unstable.
Summary of the invention
The technical problem to be solved in the present invention is to provide the carbon brush that a kind of applicable electric drill is used.
For solving the problems of the technologies described above, the technical scheme that the present invention takes is: a kind of compound carbon brush for electric drill, comprise the carbon body, connect wire, linking springs and contact pin, described carbon body comprises the left carbon piece of the carbon piece of two symmetries and right carbon piece, be provided with adhesive layer between two carbon pieces, two carbon pieces are bonded into an integral body by adhesive layer, an end that connects wire is divided into left wire and right wire, left wire is connected with right carbon piece with left carbon piece respectively with right wire, the other end is fixedly connected in contact pin, linking springs is enclosed within and connects on wire, one end contacts with the carbon body, the other end contacts with contact pin, the bottom surface of described left carbon piece and right carbon piece is respectively arranged with two with upper groove.
As further improved technical scheme of the present invention, described adhesive layer is the insulation glue-line.
As further improved technical scheme of the present invention, described groove structure is triangle.
As further improved technical scheme of the present invention, described connection wire is copper litz wire.
As further improved technical scheme of the present invention, described contact pin is latten(-tin).
The present invention is provided with a plurality of grooves in carbon body bottom, can assist the carbon brush heat radiation, thereby reduces the working temperature of carbon brush, improves the machine operation performance; Add the insulation glue-line in the middle of the carbon body, can improve the commutation ability of carbon brush.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Referring to Fig. 1, this is for the compound carbon brush of electric drill, comprise carbon body 1, connect wire 2, linking springs 3 and contact pin 4, carbon body 1 comprises the left carbon piece 11 of the carbon piece of two symmetries and right carbon piece 12, be provided with adhesive layer 13 between two carbon pieces, two carbon pieces are bonded into an integral body by adhesive layer 13, an end that connects wire 2 is divided into left wire 21 and right wire 22, left wire 21 is connected with right carbon piece 12 with left carbon piece 11 respectively with right wire 22, the other end is fixedly connected in contact pin 4, linking springs 3 is enclosed within and connects on wire 2, one end contacts with carbon body 1, the other end contacts with contact pin 4, the bottom surface of described left carbon piece 11 and right carbon piece 12 is respectively arranged with two with upper groove 14 and 15, groove 14 and 15 is triangle, the reeded indentation of carbon body 1.Be respectively arranged with 4 chamferings on four long limits of carbon body 1, chamfer dimesion is 0.5*45 °, connects wire 2 and adopts copper litz wire, and contact pin 4 is latten(-tin).The groove arranged in carbon body 1 bottom can help the carbon brush heat radiation, and the carbon brush working temperature is reduced, and improves motor performance; Add the insulation glue-line in the middle of the carbon body, can improve the commutation ability of carbon brush.
Claims (5)
1. the compound carbon brush for electric drill, comprise carbon body (1), connect wire (2), linking springs (3) and contact pin (4), it is characterized in that: described carbon body (1) comprises the left carbon piece of the carbon piece of two symmetries (11) and right carbon piece (12), be provided with adhesive layer (13) between two carbon pieces, two carbon pieces are bonded into an integral body by adhesive layer (13), an end that connects wire (2) is divided into left wire (21) and right wire (22), left wire (21) is connected with right carbon piece (12) with left carbon piece (11) respectively with right wire (22), the other end is fixedly connected in contact pin (4), linking springs (3) is enclosed within and connects on wire (2), one end contacts with carbon body (1), the other end contacts with contact pin (4), the bottom surface of described left carbon piece (11) and right carbon piece (12) is respectively arranged with two with upper groove (14) (15).
2. the compound carbon brush for electric drill according to claim 1 is characterized in that: described adhesive layer (13) is the insulation glue-line.
3. the compound carbon brush for electric drill according to claim 1, it is characterized in that: described groove (5) structure is triangle.
4. the compound carbon brush for electric drill according to claim 1, it is characterized in that: described connection wire (2) is copper litz wire.
5. the compound carbon brush for electric drill according to claim 1 is characterized in that: described contact pin (3) is latten(-tin).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101503545A CN103427269A (en) | 2012-05-16 | 2012-05-16 | Compound carbon brush for electric drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101503545A CN103427269A (en) | 2012-05-16 | 2012-05-16 | Compound carbon brush for electric drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103427269A true CN103427269A (en) | 2013-12-04 |
Family
ID=49651655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101503545A Pending CN103427269A (en) | 2012-05-16 | 2012-05-16 | Compound carbon brush for electric drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103427269A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08185951A (en) * | 1994-12-27 | 1996-07-16 | Hitachi Chem Co Ltd | Brush and its using method |
| JP2000152567A (en) * | 1998-11-05 | 2000-05-30 | Ryobi Ltd | Brush |
| CN1918755A (en) * | 2004-01-28 | 2007-02-21 | Bsh博世和西门子家用器具有限公司 | Brush bag for a dynamo-electric machine |
| CN1988290A (en) * | 2005-12-22 | 2007-06-27 | 鸿富锦精密工业（深圳）有限公司 | Electric brush and its preparing method |
| CN201323368Y (en) * | 2008-12-29 | 2009-10-07 | 任丘市双楼电碳制品有限公司 | Brush with two-layer cemented carbon graphite structure |
| CN202586015U (en) * | 2012-05-16 | 2012-12-05 | 海门市海菱碳业有限公司 | Compound type carbon brush for electric drill |
-
2012
- 2012-05-16 CN CN2012101503545A patent/CN103427269A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08185951A (en) * | 1994-12-27 | 1996-07-16 | Hitachi Chem Co Ltd | Brush and its using method |
| JP2000152567A (en) * | 1998-11-05 | 2000-05-30 | Ryobi Ltd | Brush |
| CN1918755A (en) * | 2004-01-28 | 2007-02-21 | Bsh博世和西门子家用器具有限公司 | Brush bag for a dynamo-electric machine |
| CN1988290A (en) * | 2005-12-22 | 2007-06-27 | 鸿富锦精密工业（深圳）有限公司 | Electric brush and its preparing method |
| CN201323368Y (en) * | 2008-12-29 | 2009-10-07 | 任丘市双楼电碳制品有限公司 | Brush with two-layer cemented carbon graphite structure |
| CN202586015U (en) * | 2012-05-16 | 2012-12-05 | 海门市海菱碳业有限公司 | Compound type carbon brush 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 |