CN202721567U - A motor carbon brush structure - Google Patents
A motor carbon brush structure Download PDFInfo
- Publication number
- CN202721567U CN202721567U CN 201220343722 CN201220343722U CN202721567U CN 202721567 U CN202721567 U CN 202721567U CN 201220343722 CN201220343722 CN 201220343722 CN 201220343722 U CN201220343722 U CN 201220343722U CN 202721567 U CN202721567 U CN 202721567U
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- China
- Prior art keywords
- carbon brush
- brush
- motor
- face
- commutator
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a motor carbon brush structure comprising a bakelite rack and a brush box disposed inside the bakelite rack. One end of the brush box is equipped with a copper cover plate, while the other end of the brush box is internally equipped with a carbon brush. The outer end face of the carbon brush contacts the surface of a commutator. The inner side of the carbon brush is connected with the copper cover plate through a copper brush plait. A spring is disposed between the inner end face of the carbon brush and the copper cover plate, while the outer end face of the carbon brush is equipped with a running-in structure. As a result, the motor carbon brush structure has a beneficial effect that completely coupled seating time between the carbon brush and the commutator is effectively reduced so that the stability of the motor operation is effectively guaranteed and the service life of the motor is prolonged.
Description
Technical field
The utility model relates to a kind of motor, relates in particular to a kind of motor carbon brush structure.
Background technology
At present, carbon brush on the common motor is a plane with the end face that contacts of commutator, and the surface of commutator is an arc surface, the plane contacts with arc surface, and motor is in long-term use, and the end face of brush weares and teares gradually, last and commutator face is fitted fully, therefore in the initial use procedure of motor, it is large that the spark of motor becomes, and the wearing and tearing of the complete contact need motor of brush end and commutator face long time running just can reach.Large spark can affect the stability of whole motor rotation, also can reduce the useful life of motor.
Chinese patent Granted publication number: CN201478912U, May 19 2010 Granted publication day, a kind of motor carbon brush structure is disclosed, the a pair of brush box that comprises the carbon brush base plate, takes shape on the carbon brush base plate and relatively set up, be housed in carbon brush in the brush box be connected with brush holder spring brush lead that an end links to each other with carbon brush, with the external wire that the other end of brush lead is connected, wherein said brush box comprises described brush lead and an external wire riveting holding parts together.Be brush box and stud connector design a part in the utility model, brush lead be connected more convenient reliable with external wire, further improve the reliability and stability of motor rotation.Its weak point is that carbon brush for electric machine remains a plane with the end face that contacts of commutator, motor end face and commutator face contact fully that this is chronic, in this process, produce large spark, thereby have a strong impact on the run stability of whole motor, the useful life of reducing motor.
The utility model content
The utility model is long to the time that cooperates fully with commutator face in order to overcome carbon brush for electric machine end face of the prior art break-in, produce the run stability that large spark has a strong impact on motor in this process, reduce simultaneously the deficiency in the useful life of motor, provide a kind of and can effectively shorten the running-in time that cooperates fully between carbon brush end face and the commutator, thereby effectively ensure the stable of motor rotation, prolong the motor motor carbon brush structure in useful life.
To achieve these goals, the utility model adopts following technical scheme:
A kind of motor carbon brush structure, comprise the bakelite frame and be arranged on the interior brush box of bakelite frame, one end of described brush box is provided with the copper cover plate, the other end inside of described brush box is provided with carbon brush, the outer face of described carbon brush contacts with commutator face, the inner of described carbon brush is connected with the copper cover plate by the copper brush pigtail, also is provided with spring between the inner face of described carbon brush and the copper cover plate, and the outer face of described carbon brush is provided with running-in structure.The outer face of carbon brush contacts with commutator face, the outer face is provided with running-in structure, motor is in rotation process, therefore running-in structure easily weares and teares, and can reduce significantly the carbon brush end face and contact the time of applying fully with commutator face, so reduce the duration of runs of motor in the period of adjustment, the time that produces so large spark is also short, therefore can reduce to greatest extent large spark to the impact of motor, can ensure the steady running of motor, prolong motor useful life.
As preferably, described running-in structure is serrated face, and the tooth road direction of described serrated face is consistent with the rotation direction of described commutator.Bossing on the serrated face contacts with commutator face, compare with the plane, contact area reduces significantly, so motor also shortened relatively significantly in the time of period of adjustment, thereby can shorten large spark to the impact of motor, prolong the useful life of motor.
As preferably, described running-in structure is equally distributed graininess projection, and the top of described graininess projection is wedge angle.Equally distributed graininess projection contacts with commutator face and rubs, and whole process is more naturally smooth and easy, and the top of graininess projection is wedge angle, and wear extent is just less like this, and running-in time is shorter, has interests to prolong the useful life of motor.
Therefore, the utlity model has and effectively to shorten the running-in time that cooperates fully between brush end and the commutator, thereby effectively ensure the stable of motor rotation, prolong the motor beneficial effect in useful life.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is another kind of running-in structure schematic diagram of the present utility model.
Among the figure: bakelite frame 1 brush box 2 bronze medal cover plates 3 carbon brush 4 copper brush pigtails 5 springs 6 serrated faces 7 graininess projections 8.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described:
A kind of motor carbon brush structure as shown in Figure 1, comprise bakelite frame 1 and be arranged on the interior brush box 2 of bakelite frame, one end of brush box 2 is provided with copper cover plate 3, the other end inside of brush box 2 is provided with carbon brush 4, the outer face of carbon brush 4 contacts with commutator face, the inner of carbon brush 4 is connected with copper cover plate 3 by copper brush pigtail 5, also be provided with spring 6 between the inner face of carbon brush 4 and the copper cover plate 3, the outer face of carbon brush 4 is serrated face 7, the tooth road direction of serrated face 7 is consistent with the rotation direction of described commutator, the outer face of carbon brush contacts with commutator face, the outer face is provided with the sawtooth striped, and motor is in rotation process, and serrated face is because wear extent is little so easy wearing and tearing, can reduce significantly the break-in of carbon brush end face to contacting time of applying fully with commutator face, therefore reduced the duration of runs of motor in the period of adjustment, the time that produces so large spark is also short, so also just can reduce to greatest extent large spark to the impact of motor, can ensure the steady running of motor, prolong motor useful life.
The second embodiment as shown in Figure 2, a kind of motor carbon brush structure, comprise bakelite frame 1 and be arranged on the interior brush box 2 of bakelite frame, one end of brush box 2 is provided with copper cover plate 3, and the other end inside of brush box 2 is provided with carbon brush 4, and the outer face of carbon brush 4 contacts with commutator face, the inner of carbon brush 4 is connected with copper cover plate 3 by copper brush pigtail 5, also be provided with spring 6 between the inner face of carbon brush 4 and the copper cover plate 3, the outer face of carbon brush 4 is provided with equally distributed graininess projection 8, and the top of graininess projection 8 is wedge angle.The outer face of carbon brush contacts with commutator face, be evenly distributed with the graininess projection on the outer face, the top of graininess projection 8 is wedge angle, motor is in rotation process, the wear extent of brush end is also lacked much than the wear extent of zigzag striped, more can reduce the break-in of carbon brush end face to contacting time of applying fully with commutator face, therefore reduce the duration of runs of motor in the period of adjustment, the time that produces so large spark is also short.Therefore, the utlity model has and effectively to shorten the running-in time that cooperates fully between brush end and the commutator, thereby effectively ensure the stable of motor rotation, prolong the motor beneficial effect in useful life.
Claims (4)
1. motor carbon brush structure, comprise bakelite frame (1) and be arranged on the interior brush box (2) of bakelite frame, one end of described brush box (2) is provided with copper cover plate (3), the other end inside of described brush box (2) is provided with carbon brush (4), the outer face of described carbon brush (4) contacts with commutator face, the inner of described carbon brush (4) is connected with copper cover plate (3) by copper brush pigtail (5), also be provided with spring (6) between the inner face of described carbon brush (4) and the copper cover plate (3), it is characterized in that, the outer face of described carbon brush (4) is provided with running-in structure.
2. motor carbon brush structure according to claim 1 is characterized in that, described running-in structure is serrated face (7), and the tooth road direction of described serrated face (7) is consistent with the rotation direction of described commutator.
3. motor carbon brush structure according to claim 1 is characterized in that, described running-in structure is equally distributed graininess projection (8).
4. motor carbon brush structure according to claim 3 is characterized in that, the top of described graininess projection (8) is wedge angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220343722 CN202721567U (en) | 2012-07-17 | 2012-07-17 | A motor carbon brush structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220343722 CN202721567U (en) | 2012-07-17 | 2012-07-17 | A motor carbon brush structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202721567U true CN202721567U (en) | 2013-02-06 |
Family
ID=47623371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220343722 Expired - Fee Related CN202721567U (en) | 2012-07-17 | 2012-07-17 | A motor carbon brush structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202721567U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972338A (en) * | 2017-04-13 | 2017-07-21 | 南京高传机电自动控制设备有限公司 | Grounding carbon brush and half-direct-drive wind driven generator |
-
2012
- 2012-07-17 CN CN 201220343722 patent/CN202721567U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972338A (en) * | 2017-04-13 | 2017-07-21 | 南京高传机电自动控制设备有限公司 | Grounding carbon brush and half-direct-drive wind driven generator |
| CN106972338B (en) * | 2017-04-13 | 2019-01-29 | 南京高传机电自动控制设备有限公司 | Grounding carbon brush and half-direct-drive wind driven generator |
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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: 20130206 Termination date: 20130717 |