CN201766434U - Motor carbon brush fixing device and motor with same - Google Patents
Motor carbon brush fixing device and motor with same Download PDFInfo
- Publication number
- CN201766434U CN201766434U CN2010202881843U CN201020288184U CN201766434U CN 201766434 U CN201766434 U CN 201766434U CN 2010202881843 U CN2010202881843 U CN 2010202881843U CN 201020288184 U CN201020288184 U CN 201020288184U CN 201766434 U CN201766434 U CN 201766434U
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- China
- Prior art keywords
- carbon brush
- groove
- cover
- electric machine
- motor
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- Expired - Fee Related
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- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses a motor carbon brush fixing device, which comprises a carbon brush sleeve and a carbon brush sleeve support, wherein the carbon brush sleeve is connected with a motor through the carbon brush sleeve support in a fastened manner, an elongated carbon brush is sleeved in the carbon brush sleeve, the inner surface of the carbon brush sleeve restraints the carbon brush, a groove is arranged on the inner surface, opposite to the corresponding surface of the carbon brush, of the carbon brush sleeve, the groove extends along the length direction of the carbon brush, and a carbon brush cooling air duct is formed in a space enclosed by the groove and the corresponding surface of the carbon brush. The utility model further discloses a motor using the carbon brush fixing device. The carbon brush fixing device can effectively reduce the work temperature of the carbon brush, is favorable for keeping the technical performances of the carbon brush, and prolongs service life of the motor.
Description
Technical field
The utility model relates to the motor that a kind of household electrical appliance use, particularly a kind of fixture of carbon brush for electric machine.
Background technology
The motor that uses in the current household electrical appliance all includes and is used for conversion alternating current and galvanic carbon brush.This carbon brush is generally strip, carbon brush when work one end face connect with the commutator face of high speed rotating, be in the state that slide relative rubs; Because forming the conductor of commutator must annular space arrange, therefore there are the gap in commutator and the contacted outer surface of carbon brush, this gap can cause the vibration of carbon brush when running up, the crisp easy fracture of carbon brush matter, must be provided with the suitable carbon brush cover of carbon brush shape carbon brush is wrapped up, the carbon brush cover is fixed carbon brush by bearing and being fastenedly connected of motor; At present the carbon brush cover that uses wraps up carbon brush fully except the part of necessity exposes remainder, this heat radiation to carbon brush has formed influence, carbon brush with the influence of the high-speed friction of commutator and overcurrent under produce high temperature, under this condition of high temperature, work for a long time, the correlation technique characteristic of carbon brush can descend gradually, as lubrification, to degradation under the density of the inhibition of electric spark, electric current, high temperature also strengthens the damage of engine commutator simultaneously, finally causes motor performance to descend and the working life minimizing; Though there is part carbon brush cover to offer louvre in order to dispel the heat, because the carbon brush cover is fitted with carbon brush, louvre can only make the part point of carbon brush contact with air and form local cooling, can not from bigger face carbon brush be cooled off, thereby effect is limited.
The utility model content
The utility model is in order to overcome defective in the above-mentioned prior art, by changing the interior air-cooled structure of carbon brush cover, to make carbon brush can keep lower working temperature, thereby improve motor performance and prolong its useful life.
The utility model provides a kind of carbon brush for electric machine fixture, comprise carbon brush cover and carbon brush cover bearing, the carbon brush cover is fastenedly connected by carbon brush cover bearing and motor, carbon brush is elongated, be socketed in the carbon brush cover, the inner surface of carbon brush cover forms the constraint to carbon brush, the inner surface of carbon brush cover is established groove with respect to the carbon brush respective surfaces, and groove extends along the carbon brush length direction, and groove and carbon brush respective surfaces surround the space that forms and constitute the carbon brush cooling air channel.
Preferably, groove is a straight trough, and the groove inner surface is an arc surface; Groove quantity is two, is symmetricly set in the both sides of carbon brush cover.
Preferably, groove surfaces is established groove ventilation hole 22, is used for the air channel ventilation cooling that groove forms; The ventilation hole 22 of every groove is divided into two rows, and every row's groove ventilation hole 22 evenly is provided with at interval and extends along the carbon brush length direction.
Preferably, carbon brush puts, carbon brush cover is close to the position with carbon brush and is established ventilation hole 23, is used for the some cooling of the carbon brush face be close to the carbon brush cover; Ventilation hole 23 is divided into two rows, and every row is arranged at respectively that the carbon brush of being close to carbon brush puts, on the lower surface, and every row's ventilation hole 23 evenly is provided with at interval and extends along the carbon brush length direction.
Preferably, the carbon brush cover can be made by sheet metal.
The utility model also provides a kind of motor, comprises the carbon brush for electric machine fixture that the aforementioned techniques scheme relates to.
Compared with prior art, carbon brush for electric machine fixture of the present utility model can realize the face cooling of carbon brush by carbon brush cover groove, can realize the some cooling of carbon brush by the ventilation hole of carbon brush cover upper and lower surface, can effectively reduce the working temperature of carbon brush, be of value to the technical performance that keeps carbon brush, and prolong the useful life of motor.
Description of drawings
Fig. 1 is the utility model carbon brush for electric machine fixture stereogram;
Fig. 2 is the end view of the utility model carbon brush for electric machine fixture.
Mark the following drawings mark thereon in conjunction with the accompanying drawings:
1-carbon brush cover bearing, 2-carbon brush cover, 21-carbon brush cover groove, 22-carbon brush cover groove ventilation hole, 23-carbon brush cover ventilation hole, 3-carbon brush.
Embodiment
Below in conjunction with accompanying drawing, an embodiment of the present utility model is described in detail, but is to be understood that protection range of the present utility model is not subjected to the restriction of embodiment.
As shown in Figure 1, 2, carbon brush for electric machine fixture of the present utility model comprises carbon brush cover 2 and carbon brush cover bearing 1, carbon brush cover 2 is made by sheet metal, carbon brush cover 2 is fastenedly connected with motor by carbon brush cover bearing 1, carbon brush 3 is a cuboid, the cross section carbon brush suitable with it overlapped in 2 in carbon brush 3 was socketed on, and the inner surface of carbon brush cover 2 forms the constraint to carbon brush 3.Two relative interior vertical side surfaces of carbon brush cover respectively are provided with a groove that is shaped as arc surface 21 that extends along carbon brush 3 length directions, groove 21 is a straight trough, the transverse center face coplane (promptly in carbon brush 3 bilateral symmetry settings) of the center plane of symmetry of groove 21 and carbon brush cover, groove 21 is enclosed the air channel that can make the carbon brush cooling with carbon brush 3 respective surfaces.
Further as shown in Figure 1, the surface of groove 21, with the center plane of symmetry is symmetry, each arranges one group of groove ventilation hole 22 (promptly two row's groove ventilation holes 22 all extend setting along the carbon brush length direction) with in-line both sides, the diameter in each hole is identical, the about 5-6 millimeter of centre distance between the Kong Yukong, this groove ventilation hole 22 are convenient to the air channel ventilation cooling that groove forms.
Further as shown in Figure 1, each in-line of the upper and lower surface of carbon brush cover 2 (i.e. the face of being close to carbon brush 3) is arranged one group of ventilation hole 23 (promptly two row's ventilation holes 23 all extend setting along the carbon brush length direction), be used for the some cooling on carbon brush 3 surfaces, can further increase the cooling effect of carbon brush.
Groove and the cooling air channel that enclose on the carbon brush surface, ventilation hole and the carbon brush cover upper and lower surface that arrange on the surface, air channel by carbon brush cover inner surface are arranged the ventilation hole that is provided with, carbon brush is formed large-area air-cooled and be distributed in the some cooling of face, conscientiously reduce the working temperature of carbon brush, be of value to the technical performance that keeps carbon brush, and prolong the useful life of motor.
More than disclosed only be a specific embodiment of the present utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection range of the present utility model.
Claims (9)
1. carbon brush for electric machine fixture, comprise carbon brush cover and carbon brush cover bearing, the carbon brush cover is fastenedly connected by carbon brush cover bearing and motor, carbon brush is elongated, be socketed in the carbon brush cover, the inner surface of carbon brush cover forms the constraint to carbon brush, it is characterized in that, the inner surface of described carbon brush cover is established groove with respect to the carbon brush respective surfaces, groove extends along the carbon brush length direction, and described groove and carbon brush respective surfaces surround the space that forms and constitute the carbon brush cooling air channel.
2. carbon brush for electric machine fixture according to claim 1 is characterized in that, described groove is a straight trough, and the groove inner surface is an arc surface.
3. carbon brush for electric machine fixture according to claim 1 and 2 is characterized in that, described groove quantity is two, is symmetricly set in the both sides of carbon brush cover.
4. carbon brush for electric machine fixture according to claim 3 is characterized in that, described groove surfaces is established groove ventilation hole (22), is used for the air channel ventilation cooling that groove forms.
5. carbon brush for electric machine fixture according to claim 4 is characterized in that, the ventilation hole of described every groove (22) is divided into two rows, and every row's groove ventilation hole (22) evenly is provided with at interval and extends along the carbon brush length direction.
6. carbon brush for electric machine fixture according to claim 1 and 2 is characterized in that, described carbon brush puts, carbon brush cover is close to the position with carbon brush and is established ventilation hole (23), is used for the some cooling of the carbon brush face be close to the carbon brush cover.
7. carbon brush for electric machine fixture according to claim 6, it is characterized in that, described ventilation hole (23) is divided into two rows, and every row is arranged at respectively that the carbon brush of being close to carbon brush puts, on the lower surface, and every row's ventilation hole (23) evenly is provided with at interval and extends along the carbon brush length direction.
8. carbon brush for electric machine fixture according to claim 1 is characterized in that, described carbon brush cover is made by sheet metal.
9. a motor is characterized in that, comprises as any described carbon brush for electric machine fixture in the claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202881843U CN201766434U (en) | 2010-08-09 | 2010-08-09 | Motor carbon brush fixing device and motor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202881843U CN201766434U (en) | 2010-08-09 | 2010-08-09 | Motor carbon brush fixing device and motor with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201766434U true CN201766434U (en) | 2011-03-16 |
Family
ID=43719042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202881843U Expired - Fee Related CN201766434U (en) | 2010-08-09 | 2010-08-09 | Motor carbon brush fixing device and motor with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201766434U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746495A (en) * | 2013-09-30 | 2014-04-23 | 佛山市威灵洗涤电机制造有限公司 | Brush, motor with brush and washing machine with motor |
| CN105470768A (en) * | 2014-09-05 | 2016-04-06 | 德昌电机(深圳)有限公司 | Air blower, motor and motor carbon brush assembly |
| CN106451919A (en) * | 2016-10-26 | 2017-02-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor and brush holder device thereof |
-
2010
- 2010-08-09 CN CN2010202881843U patent/CN201766434U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746495A (en) * | 2013-09-30 | 2014-04-23 | 佛山市威灵洗涤电机制造有限公司 | Brush, motor with brush and washing machine with motor |
| CN103746495B (en) * | 2013-09-30 | 2016-08-10 | 佛山市威灵洗涤电机制造有限公司 | Brush and there is the motor of this brush and there is the washing machine of this motor |
| CN105470768A (en) * | 2014-09-05 | 2016-04-06 | 德昌电机(深圳)有限公司 | Air blower, motor and motor carbon brush assembly |
| CN106451919A (en) * | 2016-10-26 | 2017-02-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor and brush holder device thereof |
| CN106451919B (en) * | 2016-10-26 | 2019-01-25 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of motor and its brush-holding device |
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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: 20110316 Termination date: 20140809 |
|
| EXPY | Termination of patent right or utility model |