CN204376588U - A kind of carbon brush structure of direct current machine - Google Patents
A kind of carbon brush structure of direct current machine Download PDFInfo
- Publication number
- CN204376588U CN204376588U CN201520111014.0U CN201520111014U CN204376588U CN 204376588 U CN204376588 U CN 204376588U CN 201520111014 U CN201520111014 U CN 201520111014U CN 204376588 U CN204376588 U CN 204376588U
- Authority
- CN
- China
- Prior art keywords
- carbon brush
- rear cover
- motor rear
- described carbon
- direct current
- 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.)
- Expired - Fee Related
Links
Landscapes
- Motor Or Generator Current Collectors (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a kind of carbon brush structure of direct current machine, comprise motor rear cover and carbon brush body assembly, described motor rear cover is the disc-shaped structure adapted with cylindrical electrical machine, described carbon brush body assembly is arranged on motor rear cover, described carbon brush body assembly comprises the carbon brush part of multiple arc rod-like structure, described carbon brush part one end is placed in the periphery of motor rear cover by alignment pin, extend towards the center of motor rear cover after described carbon brush part bends predetermined length along the periphery of motor rear cover, one end of described carbon brush part is also provided with spring.Extend towards the center of motor rear cover after carbon brush part bends predetermined length along the periphery of motor rear cover.Be compared to traditional carbon brush part, the utility model at least adds along this part bending structure of motor rear cover periphery.Thereby increase the structural area of carbon brush part, be not easy to be worn the degree being consumed to and scrapping.Increase the useful life of carbon brush in direct current machine thus.
Description
Technical field
The utility model relates to DC motor technology field, especially relates to a kind of carbon brush structure of direct current machine.
Background technology
Nowadays direct current machine has been widely used in household electrical appliance, light industry and auto industry field.In direct current machine, be generally all provided with carbon brush and commutator, by the continuous sliding contact of carbon brush and commutator, change the sense of current of direct current machine coil.
Have in brushless motor existing, carbon brush is the rod-like structure of strip, the bonnet being fixed on direct current machine passes through spring compression, one end of carbon brush and the shell of direct current machine are fixed together, the other end contacts with the commutator being positioned at the direct current machine center of circle, and making has good sliding contact between carbon brush and commutator.When motor long time running, rubbing between the side face of commutator circle and carbon brush front end, there are certain wearing and tearing in carbon brush.Have in brushless motor whole, the effect of carbon brush seems most important, is depleted to a certain degree once the carbon brush in direct current machine is worn, and whole direct current machine will be scrapped.When the size of direct current machine is less, carbon brush affects the key factor in direct current machine useful life by becoming.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of carbon brush structure of direct current machine, can increase the useful life of carbon brush in direct current machine.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of carbon brush structure of direct current machine, comprise motor rear cover and carbon brush body assembly, described motor rear cover is the disc-shaped structure adapted with cylindrical electrical machine, described carbon brush body assembly is arranged on motor rear cover, described carbon brush body assembly comprises the carbon brush part of multiple arc rod-like structure, described carbon brush part one end is placed in the periphery of motor rear cover by alignment pin, extend towards the center of motor rear cover after described carbon brush part bends predetermined length along the periphery of motor rear cover, one end of described carbon brush part is also provided with spring.
Described carbon brush part comprises the first carbon part and the second carbon part, the first described carbon part is along the bending arcuate structure of the periphery of motor rear cover, the diameter of first described carbon part one end is greater than the diameter of the first carbon part other end, one end of the first described carbon part is placed in the periphery of motor rear cover by alignment pin, the other end of the first described carbon part is connected with one end of the second carbon part, and the other end of the second described carbon part is positioned at the center of motor rear cover.Carbon brush part so designs, and make the volume of carbon brush part entirety larger, being not easy to be worn runs out of, and this also extends the useful life of direct current machine.
One end of the first described carbon part is connected with motor rear cover by spring, and described spring overcoat is on described alignment pin, and described carbon brush part extremely touches with commutator around the central motion of alignment pin to motor rear cover under the action of the spring.Spring is applied to carbon brush part active force, and the other end of carbon brush part fully can be contacted with commutator, and still can keep fully contacting with commutator after carbon brush part is worn.
Described carbon brush body assembly comprises that structure is identical, two the carbon brush parts be symmetricly set on motor rear cover.Symmetrically arranged two carbon brush parts ensure that fully contacting of carbon brush body assembly and commutator, and power that carbon brush body assembly applies can be cancelled out each other also to make commutator be subject to.
Described carbon brush body assembly is connected with brace, between described brace and described carbon brush body, is provided with dust cap.Friction between carbon brush body assembly and commutator, produces powder after carbon brush body assembly can be caused to be worn, and the setting of dust cap prevents powder floats to adhere on other parts.
Compared with prior art, the utility model has the advantage of that carbon brush body assembly comprises the carbon brush part of multiple arcuate structure, extend towards the center of motor rear cover after carbon brush part bends predetermined length along the periphery of motor rear cover.Be compared to traditional carbon brush part, the utility model at least adds along this part bending structure of motor rear cover periphery.Thereby increase the structural area of carbon brush part, be not easy to be worn the degree being consumed to and scrapping.Meanwhile, carbon brush part is connected with motor rear cover by spring, and spring is applied to carbon brush part power towards center, ensures that carbon brush part can fully contact with commutator in the moment.Increase the useful life of carbon brush in direct current machine thus.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the cutaway view in A-A cross section in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
As shown in Figure 1 to Figure 2: a kind of carbon brush structure of direct current machine, comprise motor rear cover 1 and carbon brush body assembly, motor rear cover 1 is the disc-shaped structure adapted with cylindrical electrical machine, carbon brush body assembly is arranged on motor rear cover 1, carbon brush body assembly comprises the carbon brush part 2 of multiple arc rod-like structure, carbon brush part 2 one end is placed in the periphery of motor rear cover 1 by alignment pin 4, extend towards the center of motor rear cover 1 after carbon brush part 2 bends predetermined length along the periphery of motor rear cover 1, one end of carbon brush part 2 is also provided with spring 3.
Carbon brush part 2 comprises the first carbon part 21 and the second carbon part 22, first carbon part 21 is along the bending arcuate structure of the periphery of motor rear cover 1, the diameter of first carbon part 21 one end is greater than the diameter of first carbon part 21 other end, one end of first carbon part 21 is placed in the periphery of motor rear cover 1 by alignment pin 4, the other end of the first carbon part 21 is connected with one end of the second carbon part 22, and the other end of the second carbon part 22 is positioned at the center of motor rear cover 1.One end of first carbon part 21 is connected with motor rear cover 1 by spring 3, is enclosed within alignment pin 4 outside spring 3, and carbon brush part 2 extremely touches with commutator around the central motion of alignment pin 4 to motor rear cover 1 under the effect of spring 3.Carbon brush body assembly comprises that structure is identical, two the carbon brush parts 2 be symmetricly set on motor rear cover 1.Carbon brush body assembly is connected with brace 5, between brace 5 and carbon brush body, is provided with dust cap 6.
Claims (5)
1. the carbon brush structure of a direct current machine, comprise motor rear cover and carbon brush body assembly, described motor rear cover is the disc-shaped structure adapted with cylindrical electrical machine, described carbon brush body assembly is arranged on motor rear cover, it is characterized in that, described carbon brush body assembly comprises the carbon brush part of multiple arc rod-like structure, described carbon brush part one end is placed in the periphery of motor rear cover by alignment pin, extend towards the center of motor rear cover after described carbon brush part bends predetermined length along the periphery of motor rear cover, one end of described carbon brush part is also provided with spring.
2. the carbon brush structure of a kind of direct current machine according to claim 1, it is characterized in that, described carbon brush part comprises the first carbon part and the second carbon part, the first described carbon part is along the bending arcuate structure of the periphery of motor rear cover, the diameter of first described carbon part one end is greater than the diameter of the first carbon part other end, one end of the first described carbon part is placed in the periphery of motor rear cover by alignment pin, the other end of the first described carbon part is connected with one end of the second carbon part, and the other end of the second described carbon part is positioned at the center of motor rear cover.
3. the carbon brush structure of a kind of direct current machine according to claim 2, it is characterized in that, one end of the first described carbon part is connected with motor rear cover by spring, described spring overcoat is on described alignment pin, and described carbon brush part extremely touches with commutator around the central motion of alignment pin to motor rear cover under the action of the spring.
4. the carbon brush structure of a kind of direct current machine according to claim 1, is characterized in that, described carbon brush body assembly comprises that structure is identical, two the carbon brush parts be symmetricly set on motor rear cover.
5. the carbon brush structure of a kind of direct current machine according to claim 1, is characterized in that, described carbon brush body assembly is connected with brace, is provided with dust cap between described brace and described carbon brush body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520111014.0U CN204376588U (en) | 2015-02-13 | 2015-02-13 | A kind of carbon brush structure of direct current machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520111014.0U CN204376588U (en) | 2015-02-13 | 2015-02-13 | A kind of carbon brush structure of direct current machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204376588U true CN204376588U (en) | 2015-06-03 |
Family
ID=53332766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520111014.0U Expired - Fee Related CN204376588U (en) | 2015-02-13 | 2015-02-13 | A kind of carbon brush structure of direct current machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204376588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245399A (en) * | 2018-10-29 | 2019-01-18 | 潘陈斐 | A kind of swipe can auto-feed motor brush rocker |
-
2015
- 2015-02-13 CN CN201520111014.0U patent/CN204376588U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245399A (en) * | 2018-10-29 | 2019-01-18 | 潘陈斐 | A kind of swipe can auto-feed motor brush rocker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203351480U (en) | Rotating control switch | |
| CN205565251U (en) | Carbon brush structure | |
| CN204376588U (en) | A kind of carbon brush structure of direct current machine | |
| CN207542087U (en) | A kind of novel cambered surface suitable for break group contacts left and right contact strip | |
| CN205565081U (en) | Conductive device | |
| CN203589421U (en) | Motor carbon brush holder | |
| CN202616580U (en) | Carbon brush frame assembly | |
| CN203312961U (en) | Carbon brush device of motor | |
| CN201004525Y (en) | Scrolling contact column electromotor carbon brush | |
| CN205789440U (en) | Transformator terminal construction body | |
| CN202276245U (en) | Improved flat round three-groove direct current micro motor | |
| CN201577000U (en) | Motor spring anti-contact commutator | |
| CN208014945U (en) | A kind of leaf spring contact | |
| CN206922170U (en) | Brush in electric motor of automobile brush holder assembly | |
| CN201018370Y (en) | Rotor and rear end plate assembly structure | |
| CN206451922U (en) | A kind of electric automobile charging pile | |
| CN204458946U (en) | A kind of brush holder spring | |
| CN205085527U (en) | Carbon dioxide welding is with electrically conductive mouth | |
| CN203800208U (en) | Printed circuit board connector | |
| CN204390950U (en) | A kind of touch switch | |
| CN203812725U (en) | Capacitor | |
| CN103078438A (en) | Structure for reducing electrostatic corrosion of motor | |
| CN203014129U (en) | Novel motor brush assembly | |
| CN102412490A (en) | Two-section rotary socket | |
| CN203791811U (en) | Contact tube device applied to flux-cored welding wire self-shielded welding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20200213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |