CN201509140U - Improved mini-motor - Google Patents
Improved mini-motor Download PDFInfo
- Publication number
- CN201509140U CN201509140U CN2009201282851U CN200920128285U CN201509140U CN 201509140 U CN201509140 U CN 201509140U CN 2009201282851 U CN2009201282851 U CN 2009201282851U CN 200920128285 U CN200920128285 U CN 200920128285U CN 201509140 U CN201509140 U CN 201509140U
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- China
- Prior art keywords
- brush
- electric brush
- positive
- inverter
- negative pole
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- Expired - Fee Related
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- Micromachines (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
The utility model discloses an improved mini-motor, which comprises a stator component, a rotor component and an end cover, wherein the rotor component comprises a reverser, an electric brush is arranged on the end cover and comprises a positive electric brush and a negative electric brush, one end of the positive electric brush and the negative electric brush is respectively fixed on the end cover and is respectively connected with the positive pole and the negative pole of a power supply, and the other end of the positive electric brush and the negative electric brush are respectively in contact with the cylindrical surface of the reverser by virtue of deformation force, so as to form a M-shaped structure together; since the required torque is equal when the deformation quantity at the elastic section is equal, the force arm made of two conductive wires arranged in M-shaped is lengthened than that arranged in a relatively parallel way, and the required force obtained according to the torque formula is reduced, that is, under the condition that same contact effect is achieved, the electric brush adopting the M-shaped structure applies a smaller pressure to an inverter than arranged in parallel at the elastic section of the conductive wire, the friction force of the electric brush to the inverter is reduced according to the friction law, thereby being favorable for reducing the abrasion of the electric brush to the inverter, and prolonging the service life of the mini-motor.
Description
Technical field
The utility model relates to a kind of improved micromachine.
Background technology
At present, micromachine has been widely used in industries such as electronic product, communication product, household electrical appliance, car, and along with the high speed development of automatic control technology and electronic technology, market is to the reliability of micromachine and proposed more and more higher requirement useful life.
Because the elastic conduction silk of brush be arranged in parallel when existing micromachine was worked, and contact with inverter by elastic deformation power, for making machine operation reliable, must allow conductive filament keep enough deformation to keep brush can closely contact with inverter, cause brush bigger to the pressure of inverter, inverter is worn, causes loose contact or directly damage inverter, reduced the useful life of micromachine.
At above-mentioned deficiency, need the brush of micromachine is improved, reduce its wearing and tearing to inverter, prevent brush and inverter loose contact, and prolong the useful life of micromachine.
The utility model content
In view of this, the utility model provides a kind of improved micromachine, the brush of this micromachine is distributed in the inverter both sides with " M " shape, two stretch sections that contact with inverter form the acute angle angle, the opposing parallel setting can effectively reduce the wearing and tearing of brush to inverter, improves reliability and its useful life of machine operation.
Improved micromachine of the present utility model comprises stator module, rotor assembly and end cap, described rotor assembly comprises commutator, brush is set on the end cap, described brush comprises positive brush and negative pole brush, one end of described positive brush and negative pole brush is separately fixed on the end cap and with the positive pole and the negative pole of power supply and connects, and the other end of positive brush and negative pole brush relies on deformation power to contact common " M " shape structure that forms respectively with the periphery of commutator.
The beneficial effect of utility model: improved micromachine of the present utility model comprises stator module, rotor assembly and end cap, described rotor assembly comprises commutator, brush is set on the end cap, described brush comprises positive brush and negative pole brush, one end of described positive brush and negative pole brush is separately fixed on the end cap and with the positive pole and the negative pole of power supply and connects, the other end of positive brush and negative pole brush relies on deformation power to contact common " M " shape structure that forms respectively with the periphery of commutator, because moment required when making brush that identical deformation take place equates, the setting of arm of force opposing parallel was longer when brush formed " M " shape structure, under the situation that reaches identical contact effect, the brush of " M " shape structure is littler to the pressure opposing parallel setting of commutator, can reduce the frictional force of brush to commutator, help reducing the wearing and tearing of brush, improve the reliability of micromachine work and the useful life of micromachine commutator.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Accompanying drawing is a structural representation of the present utility model, as shown in the figure: the improved micromachine of present embodiment, comprise stator module 1, rotor assembly 2 and end cap 5, described rotor assembly comprises commutator 3, brush 4 is set on the end cap 5, described brush comprises positive brush 6 and negative pole brush 7, one end of described positive brush 6 and negative pole brush 7 is separately fixed on the end cap 5 and with the positive pole and the negative pole of power supply and connects, the other end of positive brush and negative pole brush relies on deformation power to contact common " M " shape structure that forms respectively with the periphery of commutator 3, because required moment equates when making brush 7 that identical deformation quantity take place, " M " shape structure moves down with respect to the brush contact point that be arranged in parallel and makes the arm of force longer, by the moment formula as can be known, under the situation that reaches identical contact effect, the pressure opposing parallel setting of 4 pairs of commutators 3 of brush of " M " shape structure is littler, by law of friction as can be known, the frictional force of 4 pairs of commutators 3 of brush reduces, help reducing the wearing and tearing of 4 pairs of commutators 3 of brush, effectively improve the reliability and the useful life of micromachine work.
The utility model in use, because brush 4 forms " M " shape structure and contacts with commutator 3, effectively reduce the frictional force of 4 pairs of commutators 3 of brush, helped reducing the wearing and tearing of 4 pairs of commutators 3 of brush, effectively improved the reliability of micromachine work and the useful life of micromachine.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (1)
1. improved micromachine, comprise stator module (1), rotor assembly (2) and end cap (5), described rotor assembly comprises commutator (3), brush (4) is set on the end cap (5), described brush comprises positive brush (6) and negative pole brush (7), it is characterized in that: an end of described positive brush (6) and negative pole brush (7) is separately fixed at end cap (5) and upward and with the positive pole and the negative pole of power supply connects, and the other end of positive brush (6) and negative pole brush (7) relies on deformation power to contact common " M " shape structure that forms respectively with the periphery of commutator (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201282851U CN201509140U (en) | 2009-07-31 | 2009-07-31 | Improved mini-motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201282851U CN201509140U (en) | 2009-07-31 | 2009-07-31 | Improved mini-motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201509140U true CN201509140U (en) | 2010-06-16 |
Family
ID=42470262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201282851U Expired - Fee Related CN201509140U (en) | 2009-07-31 | 2009-07-31 | Improved mini-motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201509140U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280962A (en) * | 2011-06-12 | 2011-12-14 | 浙江盛越电子科技有限公司 | End cover component and small-sized motor comprising same |
| CN109660078A (en) * | 2019-01-28 | 2019-04-19 | 青岛海信移动通信技术股份有限公司 | Motor |
| CN114744457A (en) * | 2022-05-13 | 2022-07-12 | 广州大学 | Brush device of miniature direct current motor and forming method of brush piece |
-
2009
- 2009-07-31 CN CN2009201282851U patent/CN201509140U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280962A (en) * | 2011-06-12 | 2011-12-14 | 浙江盛越电子科技有限公司 | End cover component and small-sized motor comprising same |
| CN109660078A (en) * | 2019-01-28 | 2019-04-19 | 青岛海信移动通信技术股份有限公司 | Motor |
| CN114744457A (en) * | 2022-05-13 | 2022-07-12 | 广州大学 | Brush device of miniature direct current motor and forming method of brush piece |
| CN114744457B (en) * | 2022-05-13 | 2024-03-01 | 广州大学 | Electric brush device of miniature direct current motor and forming method of electric brush sheet |
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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: 20100616 Termination date: 20140731 |
|
| EXPY | Termination of patent right or utility model |