CN202586015U - Compound type carbon brush for electric drill - Google Patents
Compound type carbon brush for electric drill Download PDFInfo
- Publication number
- CN202586015U CN202586015U CN 201220218088 CN201220218088U CN202586015U CN 202586015 U CN202586015 U CN 202586015U CN 201220218088 CN201220218088 CN 201220218088 CN 201220218088 U CN201220218088 U CN 201220218088U CN 202586015 U CN202586015 U CN 202586015U
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- China
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- carbon
- lead wire
- lead
- carbon brush
- brush
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- Expired - Fee Related
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Abstract
The utility model discloses a compound-type carbon brush for an electric drill. The compound-type carbon brush comprises a carbon body, a connecting lead wire, a connecting spring and a connecting pin, wherein the carbon body comprises a left carbon block and a right carbon block which are symmetrically arranged, a bonding layer is arranged between the two carbon blocks, and the two carbon blocks are bonded into a whole through the bonding layer; one end of the connecting lead wire is divided into a left lead wire and a right lead wire, wherein the left lead wire and the right guide wire are respectively connected with the left carbon block and the right carbon block, and the other end of the connecting lead wire is fixedly connected to the contact pin; the connecting spring is sleeved on the connecting lead wire, wherein one end of the connecting spring is in contact with the carbon body, and the other end of the connecting spring is in contact with the contact pin; the bottom surfaces of the left carbon block and the right carbon block are respectively provided with more than two grooves; and the connecting wire is a copper braided wire the surface of which is plated with tin. According to the compound type carbon brush disclosed by the utility model, the bottom of the carbon body is provided with a plurality of grooves which can assist the carbon brush to dissipate heat so as to reduce the working temperature of the carbon brush, and therefore the working performance of a motor is improved; and an insulated rubber layer is additionally arranged in the middle part of the carbon body, so that the steering property of the carbon brush can be improved, and the conductivity of the lead wire can be improved by plating tin on the surface of the lead wire.
Description
Technical field
The utility model relates to a kind of carbon brush, especially a kind of compound carbon brush that is used for electric drill.
Background technology
Carbon brush is the device that transmits energy or signal between standing part and the rotating part of motor or generator or other rotating machineries, when motor rotates, electric energy is flowed to coil through phase changer.Carbon brush is widely used in many electric equipments as a kind of sliding contact part.Traditional carbon brush generally is that pure carbon adds coagulating agent and processes, and external form generally is a square, and volume varies, and has lead to draw on the top, and lead is connected with contact pin, between lead and contact pin spring is arranged.The motor speed of electric drill is higher, when motor runs up, and the generation heat thereby carbon brush can tremble at a high speed, and because the space between carbon body and the carbon brush cover is minimum, heat is not easy to distribute, carbon brush can produce temperatures involved machine operation performance; When motor runs up, because the thermal coefficient of expansion of carbon brush is less, cause the card brush easily, cause motor commutation unstable; The not high enough words of lead conductance can influence the commutation ability of motor.
The utility model content
The technical problem that the utility model will solve provides the carbon brush that a kind of suitable electric drill is used.
For solving the problems of the technologies described above, the technical scheme that the utility model is taked is: a kind of compound carbon brush that is used for electric drill comprises the carbon body, connects lead, connects spring and contact pin; Said carbon body comprises the carbon piece left side carbon piece and the right carbon piece of two symmetries; Be provided with adhesive layer between two carbon pieces, two carbon pieces are bonded into an integral body through adhesive layer, and an end that connects lead is branched into left lead and right lead; Left side lead is connected with right carbon piece with left carbon piece respectively with right lead; The other end is fixedly connected in the contact pin, connects spring housing and is connecting on the lead, and an end contacts with the carbon body; The other end contacts with contact pin, and the bottom surface of said left carbon piece and right carbon piece is respectively arranged with two with upper groove; Connecting the lead material therefor is the copper litz wire of electroplating surfaces with tin.
As the further improved technical scheme of the utility model, said adhesive layer is the insulation glue-line.
As the further improved technical scheme of the utility model, said groove structure is a triangle.
As the further improved technical scheme of the utility model, said connection lead is a copper litz wire.
As the further improved technical scheme of the utility model, said contact pin is latten(-tin).
The utility model 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; In the middle of the carbon body, add the insulation glue-line, can improve the commutation ability of carbon brush; Plate one deck tin in copper connection conductive line surfaces, can improve the conductance that connects lead, thereby improve electronic commutation ability.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Referring to Fig. 1, originally be used for the compound carbon brush of electric drill, comprise carbon body 1, connect lead 2, connect spring 3 and contact pin 4; Carbon body 1 comprises that being provided with 13, two carbon pieces of adhesive layer between the left carbon piece 11 of the carbon piece of two symmetries and 12, two carbon pieces of right carbon piece is bonded into an integral body through adhesive layer 13; An end bifurcated that connects lead 2 is divided into left lead 21 and right lead 22, and left lead 21 is connected with right carbon piece 12 with left carbon piece 11 respectively with right lead 22; The other end is fixedly connected in the contact pin 4, connects spring 3 and is enclosed within on the connection lead 2, and an end contacts with carbon body 1; The other end contacts with contact pin 4; The bottom surface of said left carbon piece 11 and right carbon piece 12 is respectively arranged with two with upper groove 14, and groove 14 is a triangle, carbon body 1 a reeded indentation.Be respectively arranged with 4 chamferings on four long limits of carbon body 1, chamfer dimesion is 0.5*45 °, connects the copper litz wire that lead 2 adopts electroplating surfaces with tin, and contact pin 4 is latten(-tin).The groove that is provided with in carbon body 1 bottom can help the carbon brush heat radiation, and the carbon brush working temperature is reduced, and improves motor performance; In the middle of the carbon body, add the insulation glue-line, can improve the commutation ability of carbon brush; Plate one deck tin in the connection conductive line surfaces, can improve the conductance that connects lead, thereby improve electronic commutation ability.
Claims (4)
1. compound carbon brush that is used for electric drill; Comprise carbon body (1), connect lead (2), connect spring (3) and contact pin (4); It is characterized in that: said carbon body (1) comprises the carbon piece left side carbon piece (11) and the right carbon piece (12) of two symmetries; Be provided with adhesive layer (13) between two carbon pieces, two carbon pieces are bonded into an integral body through adhesive layer (13), and an end that connects lead (2) is branched into left lead (21) and right lead (22); Left side lead (21) is connected with right carbon piece (12) with left carbon piece (11) respectively with right lead (22); The other end is fixedly connected in the contact pin (4), connects spring (3) and is enclosed within on the connection lead (2), and an end contacts with carbon body (1); The other end contacts with contact pin (4), and the bottom surface of said left carbon piece (11) and right carbon piece (12) is respectively arranged with two with upper groove (14); Said connection lead (2) material therefor is the copper litz wire of electroplating surfaces with tin.
2. the compound carbon brush that is used for electric drill according to claim 1 is characterized in that: said adhesive layer (13) is the insulation glue-line.
3. the compound carbon brush that is used for electric drill according to claim 1 is characterized in that: said groove (14) structure is a triangle.
4. the compound carbon brush that is used for electric drill according to claim 1 is characterized in that: said contact pin (4) is latten(-tin).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220218088 CN202586015U (en) | 2012-05-16 | 2012-05-16 | Compound type carbon brush for electric drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220218088 CN202586015U (en) | 2012-05-16 | 2012-05-16 | Compound type carbon brush for electric drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202586015U true CN202586015U (en) | 2012-12-05 |
Family
ID=47255386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220218088 Expired - Fee Related CN202586015U (en) | 2012-05-16 | 2012-05-16 | Compound type carbon brush for electric drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202586015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427269A (en) * | 2012-05-16 | 2013-12-04 | 海门市海菱碳业有限公司 | Compound carbon brush for electric drill |
| CN112997370A (en) * | 2018-10-30 | 2021-06-18 | 采埃孚股份公司 | Brush device for electrically connecting a first element to a second element, electric machine and drive device |
-
2012
- 2012-05-16 CN CN 201220218088 patent/CN202586015U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427269A (en) * | 2012-05-16 | 2013-12-04 | 海门市海菱碳业有限公司 | Compound carbon brush for electric drill |
| CN112997370A (en) * | 2018-10-30 | 2021-06-18 | 采埃孚股份公司 | Brush device for electrically connecting a first element to a second element, electric machine and drive device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20130516 |