CN202405917U - Structurally-improved electric brush supporting device and direct-current micromotor - Google Patents
Structurally-improved electric brush supporting device and direct-current micromotor Download PDFInfo
- Publication number
- CN202405917U CN202405917U CN 201120521789 CN201120521789U CN202405917U CN 202405917 U CN202405917 U CN 202405917U CN 201120521789 CN201120521789 CN 201120521789 CN 201120521789 U CN201120521789 U CN 201120521789U CN 202405917 U CN202405917 U CN 202405917U
- Authority
- CN
- China
- Prior art keywords
- brush
- stator
- supporting arrangement
- improved
- cantilever
- 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
- 229920001971 elastomer Polymers 0.000 claims abstract description 29
- 239000005060 rubber Substances 0.000 claims abstract description 29
- 238000002955 isolation Methods 0.000 claims description 21
- 238000013016 damping Methods 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000002238 attenuated effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 3
- 239000013536 elastomeric material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Images
Abstract
The utility model relates to a direct-current micromotor provided with a structurally-improved electric brush supporting device. The direct-current micromotor comprises a shell, a rotor component and the structurally-improved electric brush supporting device, wherein the structurally-improved electric brush supporting device also comprises an end cover, two electric brush fixing pieces and two electric brushes, the electric brush fixing pieces are symmetrically fixed in the end cover, and the two electric brushes are respectively fixed on the inner surfaces at the front ends of cantilevers of the two electric brush fixing pieces; the heads of the two electric brushes symmetrically come into slide and electric contact with the surface of a reverser of the rotor component under the elasticity functions of the electric brush fixing pieces; and the structurally-improved electric brush supporting device further comprises two rubbers for vibration attenuation, and the two vibration attenuation rubbers are respectively fixed on the rear ends of the cantilevers of the two electric brush fixing pieces. In the running process of the direct-current micromotor, the vibration of the electric brush fixing pieces are attenuated so that the contact of the electric brushes and the reverser are more stable, the service life of the electric brushes is prolonged, the performance of the direct-current micromotor is more stable, and the noise can also be correspondingly lowered.
Description
[
Technical field]
The utility model relates to direct current micromotor; Particularly relate to the supporting of direct current micromotor or the device of protection brush or brush carrier; Relate in particular to the structure-improved brush supporting arrangement of direct current micromotor, also relate to the direct current micromotor of equipping this structure-improved brush supporting arrangement.
[
Background technology]
Referring to Fig. 4 to Fig. 6; The brush 200 of prior art direct current micromotor generally is installed on the end cap 100 by the brush stator 300 with elastic force (so-called " brush arm "), and these brush stator 300 general employing elasticity copper material are preferably processed, and brush 200 electrically contacts with commutator; In the process of commutator with the rotor rotation; The commutator high speed rotating, the brush 200 of contact just can make brush stator 300 produce vibration with it, and it is unstable that this vibration can cause brush 200 to contact with commutator again; Thereby the wearing and tearing of brush 200 have been aggravated; The life-span of brush 200 is shortened greatly, after brush 200 has worn and torn, the brush that this motor just need more renew or scrap; And, making dress also unstable with the direct current micromotor performance of this brush supporting arrangement because the vibration of brush stator 300 causes brush 200 to contact instability with commutator, noise is also big.
[
The utility model content]
The technical problem that the utility model will solve is to avoid the weak point of above-mentioned prior art and a kind of structure-improved brush supporting arrangement and direct current micromotor is provided; Dress is used the direct current micromotor of this brush supporting arrangement, in motor operation course, and the vibration weakening of brush stator; Thereby it is more stable that brush is contacted with commutator; Improved the useful life of brush, also made the direct current micromotor performance more stable, noise also can correspondingly reduce.
The technical scheme that the utility model solve the technical problem employing is:
A kind of structure-improved brush supporting arrangement is provided, is used for direct current micromotor, comprise end cap, be fixed on the brush stator at two places in this end cap and be separately fixed at two brushes on the cantilever front end inner face of this two brushes stator symmetrically; Said structure-improved brush supporting arrangement also comprises two blocks of rubber that are used for vibration damping, and this two vibration isolation rubber is separately fixed on the cantilever rear end of said two brush stators.
Said vibration isolation rubber is fixed on the back side of cantilever rear end of said brush stator.
Said vibration isolation rubber sticks on adhesive sticker on the back side of cantilever rear end of said brush stator.
Said vibration isolation rubber is a cuboid, and the one side that its area is bigger is fixed on the back side of cantilever rear end of said brush stator.
A kind of direct current micromotor of equipping structure-improved brush supporting arrangement comprises housing, rotor assembly and structure-improved brush supporting arrangement; Said structure-improved brush supporting arrangement comprises end cap again, is fixed on the brush stator at two places in this end cap and be separately fixed at two brushes on the cantilever front end inner face of this two brushes stator symmetrically; Under the elastic force effect of said each brush stator, said each brush head slides with the commutator face of said rotor assembly symmetrically and electrically contacts; Said structure-improved brush supporting arrangement also comprises two blocks of rubber that are used for vibration damping, and this two vibration isolation rubber is separately fixed on the cantilever rear end of said two brush stators.
Compare with prior art, the beneficial effect of the utility model structure-improved brush supporting arrangement and direct current micromotor is:
Specially on each brush stator, fix an elastomeric material that is used for vibration damping respectively; Make motor in running; The vibration weakening of brush stator, thus it is more stable that brush is contacted with commutator, improved the useful life of brush; Also make the direct current micromotor performance more stable, noise also can correspondingly reduce.
[
Description of drawings]
Fig. 1 is the axonometric projection sketch map of the structure-improved brush supporting arrangement of the utility model direct current micromotor;
Fig. 2 is the main sketch map of looking of the orthographic projection of said structure-improved brush supporting arrangement;
Fig. 3 is the axonometric projection sketch map of the vibration isolation rubber 400 of said structure-improved brush supporting arrangement;
Fig. 4 is the axonometric projection sketch map of the brush stator 300 of said brush supporting arrangement;
Fig. 5 is the axonometric projection sketch map of the end cap 100 of said brush supporting arrangement;
Fig. 6 is the main sketch map of looking of orthographic projection of the brush supporting arrangement of prior art direct current micromotor.
[embodiment]
Below in conjunction with each accompanying drawing the utility model is done further explain.
Referring to Fig. 1 to Fig. 5; A kind of structure-improved brush supporting arrangement; Be used for direct current micromotor, comprise end cap 100, be fixed on the brush stator 300 at two places in this end cap 100 and be separately fixed at two brushes 200 on cantilever 310 front ends 311 inner faces 3111 of this two brushes stator 300 symmetrically; Said structure-improved brush supporting arrangement also comprises two blocks of rubber 400 that are used for vibration damping, and this two vibration isolation rubber 400 is separately fixed on cantilever 310 rear ends 312 of said two brush stators 300.
Referring to Fig. 1 to Fig. 4, said vibration isolation rubber 400 is fixed on the back side 3121 of cantilever 310 rear ends 312 of said brush stator 300.
Referring to Fig. 1 to Fig. 4, said vibration isolation rubber 400 usefulness adhesive stickers stick on the back side 3121 of cantilever 310 rear ends 312 of said brush stator 300.
Referring to Fig. 1 to Fig. 4, said vibration isolation rubber 400 is a cuboid, and the one side that its area is bigger is fixed on the back side 3121 of cantilever 310 rear ends 312 of said brush stator 300.
Referring to Fig. 1 to Fig. 5, a kind of direct current micromotor of equipping structure-improved brush supporting arrangement comprises housing (not shown), rotor assembly (not shown) and structure-improved brush supporting arrangement; Said structure-improved brush supporting arrangement comprises end cap 100 again, is fixed on the brush stator 300 at two places in this end cap 100 and be separately fixed at two brushes 200 on cantilever 310 front ends 311 inner faces 3111 of this two brushes stator 300 symmetrically; Under the elastic force effect of said each brush stator 300, said each brush 200 head slide with the commutator (not shown) surface of said rotor assembly symmetrically and electrically contact; Said structure-improved brush supporting arrangement also comprises two blocks of rubber 400 that are used for vibration damping, and this two vibration isolation rubber 400 is separately fixed on cantilever 310 rear ends 312 of said two brush stators 300.
The utility model designs according to the tuning fork principle, if do not paste any damping material on the tuning fork, then stirs tuning fork with hand, and tuning fork can swing up and down, and just stops through long time; If on tuning fork, paste damping material, when stirring tuning fork with hand, tuning fork can swing up and down, but significantly the amplitude of oscillation is little a lot, and stops swinging soon.Therefore specially each fixes an elastomeric material that is used for vibration damping, these vibration isolation rubber 400 good springiness and high temperature resistant to the utility model on each brush stator 300.Motor is in running; The vibration isolation rubber 400 that is fixed on brush stator 300 has damping action, when motor in when operation, will weaken the vibration of brush stator 300; Thereby it is more stable that brush 200 is contacted with commutator; Improved the useful life of brush 200, also made the direct current micromotor performance more stable, noise also can correspondingly reduce.
The above embodiment has only expressed the preferred implementation of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection range of the utility model; Therefore, all equivalents and modifications of being done with the utility model claim scope all should belong to the covering scope of the utility model claim.
Claims (8)
1. structure-improved brush supporting arrangement; Be used for direct current micromotor, comprise end cap (100), be fixed on the brush stator (300) at two places in this end cap (100) and be separately fixed at two brushes (200) on cantilever (310) front end (311) inner face (3111) of this two brushes stator (300) symmetrically; It is characterized in that:
Also comprise two blocks of rubber (400) that are used for vibration damping, this two vibration isolation rubber (400) is separately fixed on cantilever (310) rear end (312) of said two brush stators (300).
2. structure-improved brush supporting arrangement according to claim 1 is characterized in that:
Said vibration isolation rubber (400) is fixed on the back side (3121) of cantilever (310) rear end (312) of said brush stator (300).
3. structure-improved brush supporting arrangement according to claim 2 is characterized in that:
Said vibration isolation rubber (400) sticks on adhesive sticker on the back side (3121) of cantilever (310) rear end (312) of said brush stator (300).
4. according to each described structure-improved brush supporting arrangement of claim 1 to 3, it is characterized in that:
Said vibration isolation rubber (400) is a cuboid, and the one side that its area is bigger is fixed on the back side (3121) of cantilever (310) rear end (312) of said brush stator (300).
5. a direct current micromotor of equipping structure-improved brush supporting arrangement comprises housing, rotor assembly and structure-improved brush supporting arrangement; Said structure-improved brush supporting arrangement comprises end cap (100) again, is fixed on the brush stator (300) at two places in this end cap (100) and be separately fixed at two brushes (200) on cantilever (310) front end (311) inner face (3111) of this two brushes stator (300) symmetrically; Under the elastic force effect of said each brush stator (300), said each brush (200) head slides with the commutator face of said rotor assembly symmetrically and electrically contacts; It is characterized in that:
Said structure-improved brush supporting arrangement also comprises two blocks of rubber (400) that are used for vibration damping, and this two vibration isolation rubber (400) is separately fixed on cantilever (310) rear end (312) of said two brush stators (300).
6. the direct current micromotor of equipment structure-improved brush supporting arrangement according to claim 5 is characterized in that:
Said vibration isolation rubber (400) is fixed on the back side (3121) of cantilever (310) rear end (312) of said brush stator (300).
7. the direct current micromotor of equipment structure-improved brush supporting arrangement according to claim 6 is characterized in that:
Said vibration isolation rubber (400) sticks on adhesive sticker on the back side (3121) of cantilever (310) rear end (312) of said brush stator (300).
8. according to the direct current micromotor of each described equipment structure-improved brush supporting arrangement of claim 5 to 7, it is characterized in that:
Said vibration isolation rubber (400) is a cuboid, and the one side that its area is bigger is fixed on the back side (3121) of cantilever (310) rear end (312) of said brush stator (300).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120521789 CN202405917U (en) | 2011-12-14 | 2011-12-14 | Structurally-improved electric brush supporting device and direct-current micromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120521789 CN202405917U (en) | 2011-12-14 | 2011-12-14 | Structurally-improved electric brush supporting device and direct-current micromotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202405917U true CN202405917U (en) | 2012-08-29 |
Family
ID=46703534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120521789 Expired - Fee Related CN202405917U (en) | 2011-12-14 | 2011-12-14 | Structurally-improved electric brush supporting device and direct-current micromotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202405917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106936251A (en) * | 2015-12-31 | 2017-07-07 | 德昌电机(深圳)有限公司 | Motor |
-
2011
- 2011-12-14 CN CN 201120521789 patent/CN202405917U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106936251A (en) * | 2015-12-31 | 2017-07-07 | 德昌电机(深圳)有限公司 | Motor |
| CN106936251B (en) * | 2015-12-31 | 2020-02-14 | 德昌电机(深圳)有限公司 | Electric machine |
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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 | ||
| CP03 | Change of name, title or address |
Address after: 518104 Guangdong city of Shenzhen province Baoan District manhole Street manhole West Maan Shan Industrial Park, Tai Tong Industrial Zone No. 1, No. 2, No. 3 Patentee after: Dongming Shenzhen electromechanical Limited by Share Ltd Address before: 518104 Guangdong city of Shenzhen Province in Western Baoan District manhole Maan Shan Industrial Park Ditang Industrial Zone No. 2 Patentee before: Dongming Mechanical and Electrical (Shenzhen) Co., Ltd. |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20180613 Granted publication date: 20120829 |
|
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210613 Granted publication date: 20120829 |
|
| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210613 Granted publication date: 20120829 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20211214 Granted publication date: 20120829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20171214 |