CN204046385U - Prevent the brush box of short circuit - Google Patents
Prevent the brush box of short circuit Download PDFInfo
- Publication number
- CN204046385U CN204046385U CN201420500619.4U CN201420500619U CN204046385U CN 204046385 U CN204046385 U CN 204046385U CN 201420500619 U CN201420500619 U CN 201420500619U CN 204046385 U CN204046385 U CN 204046385U
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- CN
- China
- Prior art keywords
- brush
- commutator
- flexible member
- short circuit
- brush box
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- 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.)
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Abstract
The utility model relates to a kind of brush box preventing short circuit, by the commutator being arranged on brushless motor, be provided with carbon brush, brush litzendraht wire in brush box and make the flexible member of carbon brush and commutator close contact, brush litzendraht wire one end is connected with carbon brush, have the groove with flexible member form fit in brush box, groove and commutator junction are provided with stage portion flexible member and commutator separated.The utility model prevents the brush box of short circuit, utilize the stage portion of a groove and commutator junction, flexible member can not be contacted with commutator, the probability of the sparking after flexible member is contacted with commutator or Damage by Short Circuit motor reduces greatly, flexible member and commutator maintain certain gap, carbon brush also just can not be completely worn, so brush litzendraht wire also just cannot touch commutator, namely final flexible member all can not directly contact with commutator with brush litzendraht wire, avoids the damage of short circuit to motor.
Description
Technical field
The utility model relates to a kind of brush box, particularly relates to a kind of brush box preventing short circuit.
Background technology
Generally there is the brush box at the commutator place of brushless motor as shown in Figure 1, carbon brush is placed in brush box 1, flexible member is placed in the groove in brush box, elastic force makes close contact between carbon brush and commutator, after carbon brush abrasion is complete, spring directly can contact with commutator with brush litzendraht wire thereupon and electric motor short circuit may be caused to burn machine.
Utility model content
The technical problems to be solved in the utility model is: in order to the carbon brush abrasion solving brushless motor complete after, spring directly can contact the problem that electric motor short circuit may be caused to burn machine with brush litzendraht wire with commutator, the utility model provides a kind of brush box of short circuit that prevents to solve the problems referred to above.
The utility model solves the technical scheme that its technical problem adopts: a kind of brush box preventing short circuit, by the commutator being arranged on brushless motor, be provided with carbon brush, brush litzendraht wire in described brush box and make the flexible member of carbon brush and commutator close contact, described brush litzendraht wire one end is connected with carbon brush, have the groove with flexible member form fit in described brush box, described groove and commutator junction are provided with stage portion flexible member and commutator separated.
Further, specifically, described flexible member is spring, and described groove and the cylindrical of spring match.
Further, specifically, described channel section is semicircle.
In order to better prevent short circuit, described brush litzendraht wire is socketed with insulated tube.
As preferably, the thickness of described stage portion is 1-2mm.
The beneficial effects of the utility model are, the utility model prevents the brush box of short circuit, (1) stage portion of a groove and commutator junction is utilized, flexible member can not be contacted with commutator, the probability of the sparking after flexible member is contacted with commutator or Damage by Short Circuit motor reduces greatly, (2) flexible member and commutator maintain certain gap, carbon brush also just can not be completely worn, so brush litzendraht wire also just cannot touch commutator, and namely final flexible member all can not directly contact with commutator with brush litzendraht wire.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of traditional brush box,
Fig. 2 is the structural representation of the utility model when preventing the brush box of short circuit from installing carbon brush,
Fig. 3 is the structural representation of the utility model when preventing the brush box of short circuit non-carbonate.
In figure 1, brush box, 2, carbon brush, 3, brush litzendraht wire, 4, commutator, 5, flexible member, 6, groove, 7, stage portion.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As Figure 2-3, the utility model prevents the brush box of short circuit, the commutator 4 being arranged on brushless motor is other, carbon brush 2 is provided with in described brush box 1, brush litzendraht wire 3 and the spring making carbon brush 2 with commutator 4 close contact, brush litzendraht wire 3 one end is connected with carbon brush 2, there is in brush box 1 groove 6 mated with spring cylindrical, groove 6 and commutator 4 junction are provided with the stage portion 7 spring and commutator 4 separated, stage portion 7 thickness is 1-2mm, too thin spring and the brush litzendraht wire 3 of easily making is because deformation causes contacting with commutator 4, too thick waste carbon brush 2, brush litzendraht wire 3 is socketed with insulated tube, stage portion 7 is also semicircle shape, be arranged in groove 6.
Specific works principle, carbon brush 2 is installed to after in brush box 1, the elasticity of spring is utilized to make carbon brush 2 and commutator 4 close contact, the groove 6 of cross section semicircle, spring is made to have semicircle to expose from groove 6, the platform of the both sides of groove 6 is as the track of carbon brush 2 along spring action, when carbon brush 2 may wear to a certain degree, spring is intercepted by the stage portion 7 in groove 6, cannot continue to move ahead, then need to change carbon brush 2, spring at this moment and brush litzendraht wire 3 all directly cannot can contact with commutator 4 due to the obstruct of carbon brush.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (5)
1. one kind prevents the brush box of short circuit, the commutator (4) being arranged on brushless motor is other, it is characterized in that: in described brush box (1), be provided with carbon brush (2), brush litzendraht wire (3) and make the flexible member (5) of carbon brush (2) and commutator (4) close contact, described brush litzendraht wire (3) one end is connected with carbon brush (2), there is in described brush box (1) groove (6) with flexible member (5) form fit, described groove (6) and commutator (4) junction are provided with the stage portion (7) flexible member and commutator (4) separated.
2. the brush box preventing short circuit according to claim 1, is characterized in that: described flexible member (5) is spring, and described groove (6) matches with the cylindrical of spring.
3. the brush box preventing short circuit according to claim 2, is characterized in that: described groove (6) cross section is semicircle.
4. the brush box preventing short circuit according to claim 1, is characterized in that: described brush litzendraht wire (3) is socketed with insulated tube.
5. the brush box preventing short circuit according to claim 1, is characterized in that: the thickness of described stage portion (7) is 1-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420500619.4U CN204046385U (en) | 2014-09-01 | 2014-09-01 | Prevent the brush box of short circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420500619.4U CN204046385U (en) | 2014-09-01 | 2014-09-01 | Prevent the brush box of short circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204046385U true CN204046385U (en) | 2014-12-24 |
Family
ID=52247012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420500619.4U Active CN204046385U (en) | 2014-09-01 | 2014-09-01 | Prevent the brush box of short circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204046385U (en) |
-
2014
- 2014-09-01 CN CN201420500619.4U patent/CN204046385U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213011 Qian Jia Industrial Park, Guan yuan town, Wujin District, Jiangsu, Changzhou Patentee after: JIANGSU LEILI MOTOR CO., LTD. Address before: 213011 Qian Jia Industrial Park, Guan yuan town, Wujin District, Jiangsu, Changzhou Patentee before: Changzhou Leshi Leili Electrical Appliance Co., Ltd. |