CN204391991U - Miniature brush motor and fore-stock thereof - Google Patents
Miniature brush motor and fore-stock thereof Download PDFInfo
- Publication number
- CN204391991U CN204391991U CN201520032936.2U CN201520032936U CN204391991U CN 204391991 U CN204391991 U CN 204391991U CN 201520032936 U CN201520032936 U CN 201520032936U CN 204391991 U CN204391991 U CN 204391991U
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- brush
- stock
- fore
- hole
- miniature
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- 230000000694 effects Effects 0.000 claims description 4
- 229920006351 engineering plastic Polymers 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 4
- 229910001297 Zn alloy Inorganic materials 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Abstract
The utility model relates to a kind of miniature brush motor and fore-stock thereof, and this miniature brush motor comprises fore-stock; Fore-stock comprises two symmetrical supporting extension arms and connects the bottom of these two supporting extension arms, and described bottom is provided with fore bearing room; Two supporting extension arms of described fore-stock are symmetrically arranged with two brush rooms respectively, each brush room is provided with brush through hole, an outer surface of each brush room is provided with the breach be connected with respective brush through hole, the opening of each breach outwardly, two place's projections are extended with, two the first through holes each projection being provided with unidirectional two cylinders and being positioned near respective Correspondent cy linder near the bottom of respective corresponding breach.The miniature brush motor of the utility model has that structure is simple, lightweight, easy to assembly, dismounting also convenient and low cost and other advantages.
Description
[
technical field]
The utility model relates to casing or the support of motor, particularly relates to casing or the support of the motor of equipment mechanical commutator, particularly relates to the fore-stock of the miniature brush motor of the type, and relate to the miniature brush motor of this fore-stock of equipment.
[
background technology]
See Fig. 6 to Fig. 9, the all equipment mechanical commutator of the miniature brush motor of prior art, all brush assembly of electric must be had, this brush assembly of electric comprises again two brush covers 60 ', two pieces of brushes 70 ', two filling-in bit terminals 78 and two flexible members, this flexible member is the Compress Spring 80 ' turned to by an elastic metallic yarn, two brush covers 60 ' are fixed on the fore-stock 10 ' of described miniature brush motor with screw 95 symmetrically respectively, the brush hole 68 ' of each brush cover 60 ' is interior is equipped with Compress Spring 80 ' and brush 70 ' respectively, each filling-in bit terminal 78 is separately fixed in two rectangular through holes 69 ' of each self-corresponding brush cover 60 ' tail end, to block each self-corresponding Compress Spring 80 ', each Compress Spring 80 ' front end withstands on the rear end face of each self-corresponding brush 70 ', each Compress Spring 80 ' rear end withstands on each self-corresponding filling-in bit terminal 78, under the elastic force effect of each self-corresponding Compress Spring 80 ', each brush 70 ' is protruding, the commutator 39 of the rotor assembly 30 of its front end face and described miniature brush motor keeps in touch.The miniature brush motor of prior art has following weak point: need two brush cover 60 ', two filling-in bit terminals 78 and two screws 95, part is many, special messenger is also needed to fill filling-in bit terminal 78 and be fixed on fore-stock 10 ' by each brush cover 60 ' with screw 95, operation is many, inconvenient operation, and add material and cost of labor; And fore-stock 10 ' generally adopts and uses metal material to make, as adopted zinc alloy diecasting to form, the high and Heavy Weight of cost, must consider the electric clearance between other electronic component and fore-stock 10 ' and/or creepage distance when assembling.
[
utility model content]
The technical problems to be solved in the utility model is avoid above-mentioned the deficiencies in the prior art part and provide a kind of miniature brush motor and fore-stock thereof, and the miniature brush motor being equipped with this fore-stock has that structure is simple, lightweight, easy to assembly, dismounting also convenient and low cost and other advantages.
The technical scheme that the utility model solve the technical problem employing is:
A kind of miniature brush motor is provided, comprises fore-stock, after-poppet, the rotor assembly that commutator is housed, brush assembly of electric, fore bearing and the rear bearing be arranged on described fore-stock, and be installed on the stator module between described forward and backward support; Described brush assembly of electric comprises two brushes and two flexible members; Described fore-stock comprises two symmetrical supporting extension arms and connects the bottom of these two supporting extension arms, and the bottom of described fore-stock is provided with fore bearing room; The fore bearing that described fore bearing is arranged on described fore-stock is indoor; The rotating shaft of described rotor assembly is held by described axle and is arranged on described forward and backward support rotationally, and this rotating shaft rear end is stretched out from the central through hole of described after-poppet; Two supporting extension arms of described fore-stock are symmetrically arranged with two brush rooms respectively, each brush room is provided with brush through hole, an outer surface of each brush room is provided with the breach be connected with respective brush through hole, the opening of each breach outwardly, two place's projections are extended with, two the first through holes each projection being provided with unidirectional two cylinders and being positioned near respective Correspondent cy linder near the bottom of respective corresponding breach; Described flexible member comprises elastic body, and the first free end connected with these elastic body two ends respectively and the second free end; Two described brushes are respectively charged in two brush through holes of two brush rooms of described fore-stock; The endoporus of the elastic body of two described flexible members is enclosed within two cylinders of two place's projections of described fore-stock respectively, first free end of two described flexible members respectively from two projections of described fore-stock each self-corresponding first through hole pass through rear hook on the outer surface of two place's projections of described fore-stock, the second free end of two described flexible members is respectively from the rear end withstanding on the brush in respective brush through hole after each self-corresponding breach two of described fore-stock brush rooms puts in each self-corresponding brush through hole; Under the elastic force effect of described flexible member, the front end face of two brushes stretches out respectively in the brush through hole of two of described fore-stock brush rooms, to contact with the commutator face of described rotor assembly.
The free end of two cylinders of two place's projections of described fore-stock is outwards all provided with projection.
Described projection is semi-cylindrical hill.
A kind of fore-stock on miniature brush motor is also provided; Comprise the bottom of two symmetrical supporting extension arms and these two supporting extension arms of connection, described bottom is provided with fore bearing room; Two supporting extension arms of described fore-stock are symmetrically arranged with two brush rooms respectively, each brush room is provided with brush through hole, an outer surface of each brush room is provided with the breach be connected with respective brush through hole, the opening of each breach outwardly, two place's projections are extended with, two the first through holes each projection being provided with unidirectional two cylinders and being positioned near respective Correspondent cy linder near the bottom of respective corresponding breach.
Described fore-stock directly adopts engineering plastics injection moulding one-shot forming to form.
Compared with the existing technology comparatively, the beneficial effect of the miniature brush motor of the utility model and fore-stock thereof is:
1, simple, easy to assembly, the dismounting of structure is also convenient and cost is low: due to the utility model directly by two of prior art brush Analysis of Nested Design on fore-stock, make fore-stock structure of the present utility model special, and decrease two brush covers, two filling-in bit terminals and two screws, part is few, operation is few, easy to operate, decrease material, reduce cost of labor;
2, lightweight and cost is low, fore-stock of the present utility model can directly adopt engineering plastics injection moulding one-shot forming to form, the fore-stock of prior art adopts zinc alloy diecasting to form, the density of kirsite density ratio engineering plastics is much larger, under same volume, the fore-stock of the weight ratio kirsite of the fore-stock of engineering plastics much lightweight; And the cost of the fore-stock of engineering plastics is more much lower than the cost of the fore-stock of kirsite;
3, excellent insulation performance: because fore-stock of the present utility model directly adopts engineering plastics injection moulding one-shot forming to form, good insulation preformance, need not consider the electric clearance between other electronic component and fore-stock and/or creepage distance substantially.
In sum, the miniature brush motor of the utility model has that structure is simple, lightweight, easy to assembly, dismounting also convenient and low cost and other advantages.
[
accompanying drawing explanation]
Fig. 1 is the axonometric projection schematic diagram of the brush assembly of electric of the miniature brush motor of the utility model, fore-stock and rotor assembly rigging position relation, does not draw after-poppet and stator module in figure;
Fig. 2 is the orthographic projection schematic top plan view of the relation of rigging position shown in Fig. 1;
Fig. 3 is the orthographic projection schematic front view that the brush assembly of electric of described miniature brush motor and fore-stock assemble when decomposing;
Fig. 4 is the axonometric projection schematic diagram of described fore-stock;
Fig. 5 is the axonometric projection schematic diagram of the flexible member of described brush assembly of electric;
Fig. 6 is the axonometric projection schematic diagram of the brush assembly of electric of the miniature brush motor of prior art, fore-stock and rotor assembly rigging position relation;
Fig. 7 is the orthographic projection schematic front view that the brush assembly of electric of the miniature brush motor of prior art and fore-stock decompose;
Fig. 8 is the axonometric projection schematic diagram of prior art brush cover;
Fig. 9 is that the orthographic projection of the cover of brush shown in Fig. 8 mainly looks generalized section.
[embodiment]
Below in conjunction with each accompanying drawing, the utility model is described in further detail.
See Fig. 1 to Fig. 5, a kind of miniature brush motor, comprise fore-stock 10, after-poppet, the rotor assembly 30 that commutator 39 is housed, brush assembly of electric, fore bearing and the rear bearing be arranged on described fore-stock 10, and be installed on the stator module between described forward and backward support, described brush assembly of electric comprises two brushes 70 and two flexible members 80, described fore-stock 10 comprises symmetrical two supporting extension arms 11 and connects the bottom 12 of these two supporting extension arms 11, and the bottom 12 of described fore-stock 10 is provided with fore bearing room 121, described fore bearing is arranged in the fore bearing room 121 of described fore-stock 10, the rotating shaft 31 of described rotor assembly 30 is held by described axle and is arranged on described forward and backward support rotationally, and this rotating shaft 31 rear end is stretched out from the central through hole of described after-poppet, two supporting extension arms 11 of described fore-stock 10 are symmetrically arranged with two brush rooms 111 respectively, each brush room 111 is provided with brush through hole 1111, an outer surface of each brush room 111 is provided with the breach 1112 be connected with respective brush through hole 1111, the opening of each breach 1112 outwardly, be extended with two place's projections 122 near the bottom 12 of respective corresponding breach 1112, each projection 122 be provided with unidirectional two cylinders 1221 and be positioned at two the first through holes 1222 near respective Correspondent cy linder 1221, described flexible member 80 comprises elastic body 81, and the first free end 82 and the second free end 83 connected with these elastic body 81 two ends respectively, two described brushes 70 are respectively charged in two brush through holes 1111 of two brush rooms 111 of described fore-stock 10, the endoporus of the elastic body 81 of two described flexible members 80 is enclosed within two cylinders 1221 of two place's projections 122 of described fore-stock 10 respectively, first free end 82 of two described flexible members 80 respectively from two projections 122 of described fore-stock 10 each self-corresponding first through hole 1222 pass through rear hook on the outer surface of two place's projections 122 of described fore-stock 10, second free end 83 of two described flexible members 80 is respectively from the rear end withstanding on the brush 70 in respective brush through hole 1111 after each self-corresponding breach 1112 two brush rooms 111 of described fore-stock 10 puts in each self-corresponding brush through hole 1111, under the elastic force effect of described flexible member 80, the front end face of two brushes 70 stretches out respectively in the brush through hole 1111 of two brush rooms 111 of described fore-stock 10, to contact with commutator 39 surface of described rotor assembly 30.
Also have other parts of this miniature brush motor do not draw and mark in Fig. 1 and Fig. 2, they all belong to prior art, do not repeat them here.
See Fig. 3 and Fig. 4, the free end of two cylinders 1221 of two place's projections 122 of described fore-stock 10 is outwards all provided with protruding 12211.
See Fig. 3 and Fig. 4, described protruding 12211 is semi-cylindrical hill.
Fore-stock 10 of the present utility model directly adopts engineering plastics injection moulding one-shot forming to form.
The above embodiment only have expressed preferred implementation of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims; It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model; Therefore, all equivalents of doing with the utility model right and modification, all should belong to the covering scope of the utility model claim.
Claims (6)
1. a miniature brush motor, comprise fore-stock (10), after-poppet, the rotor assembly (30) that commutator (39) are housed, brush assembly of electric, fore bearing and the rear bearing be arranged on described fore-stock (10), and be installed on the stator module between described forward and backward support; Described brush assembly of electric comprises two brushes (70) and two flexible members (80); Described fore-stock (10) comprises two symmetrical supporting extension arms (11) and connects the bottom (12) of these two supporting extension arms (11), and the bottom (12) of described fore-stock (10) is provided with fore bearing room (121); Described fore bearing is arranged in the fore bearing room (121) of described fore-stock (10); The rotating shaft (31) of described rotor assembly (30) is held by described axle and is arranged on described forward and backward support rotationally, and this rotating shaft (31) rear end is stretched out from the central through hole of described after-poppet; It is characterized in that:
Two supporting extension arms (11) of described fore-stock (10) are symmetrically arranged with two brush rooms (111) respectively, each brush room (111) is provided with brush through hole (1111), an outer surface of each brush room (111) is provided with the breach (1112) be connected with respective brush through hole (1111), the opening of each breach (1112) outwardly, two place's projections (122) are extended with near the bottom (12) of respective corresponding breach (1112), two the first through holes (1222) each projection (122) being provided with unidirectional two cylinders (1221) and being positioned near respective Correspondent cy linder (1221),
Described flexible member (80) comprises elastic body (81), and the first free end (82) connected with this elastic body (81) two ends respectively and the second free end (83);
Two described brushes (70) are respectively charged in two brush through holes (1111) of two brush rooms (111) of described fore-stock (10), the endoporus of the elastic body (81) of two described flexible members (80) is enclosed within two cylinders (1221) of two place's projections (122) of described fore-stock (10) respectively, first free end (82) of two described flexible members (80) passes through rear hook on the outer surface of two place's projections (122) of described fore-stock (10) from upper each self-corresponding first through hole (1222) of two projections (122) of described fore-stock (10) respectively, second free end (83) of two described flexible members (80) is respectively from the rear end withstanding on the brush (70) in respective brush through hole (1111) after each self-corresponding breach (1112) two brush rooms (111) of described fore-stock (10) puts in each self-corresponding brush through hole (1111), under the elastic force effect of described flexible member (80), the front end face of two brushes (70) stretches out respectively in the brush through hole (1111) of two brush rooms (111) of described fore-stock (10), to contact with commutator (39) surface of described rotor assembly (30).
2. miniature brush motor according to claim 1, is characterized in that:
The free end of two cylinders (1221) of two place's projections (122) of described fore-stock (10) is outwards all provided with projection (12211).
3. miniature brush motor according to claim 2, is characterized in that:
Described projection (12211) is semi-cylindrical hill.
4. the fore-stock (10) on miniature brush motor; Comprise the bottom (12) of two symmetrical supporting extension arms (11) and these two supporting extension arms (11) of connection, described bottom (12) are provided with fore bearing room (121); It is characterized in that:
Two supporting extension arms (11) of described fore-stock (10) are symmetrically arranged with two brush rooms (111) respectively, each brush room (111) is provided with brush through hole (1111), an outer surface of each brush room (111) is provided with the breach (1112) be connected with respective brush through hole (1111), the opening of each breach (1112) outwardly, two place's projections (122) are extended with near the bottom (12) of respective corresponding breach (1112), two the first through holes (1222) each projection (122) being provided with unidirectional two cylinders (1221) and being positioned near respective Correspondent cy linder (1221).
5. the fore-stock (10) on miniature brush motor according to claim 4, is characterized in that:
The free end of two cylinders (1221) is outwards all provided with projection (12211).
6. the fore-stock (10) on miniature brush motor according to claim 5, is characterized in that:
Described projection (12211) is semi-cylindrical hill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520032936.2U CN204391991U (en) | 2015-01-19 | 2015-01-19 | Miniature brush motor and fore-stock thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520032936.2U CN204391991U (en) | 2015-01-19 | 2015-01-19 | Miniature brush motor and fore-stock thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204391991U true CN204391991U (en) | 2015-06-10 |
Family
ID=53364672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520032936.2U Active CN204391991U (en) | 2015-01-19 | 2015-01-19 | Miniature brush motor and fore-stock thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204391991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115009781A (en) * | 2022-07-26 | 2022-09-06 | 桂林电子科技大学 | Mining scraper conveyor with variable groove spacing |
-
2015
- 2015-01-19 CN CN201520032936.2U patent/CN204391991U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115009781A (en) * | 2022-07-26 | 2022-09-06 | 桂林电子科技大学 | Mining scraper conveyor with variable groove spacing |
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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: SHENZHEN DONGMING MOTOR ELECTRIC CO.,LTD. Address before: 518104 Dongsheng Industrial Zone, Dili Road, Western Industrial Zone, Manholes, Shenzhen, Guangdong, Baoan District Patentee before: DONGMING MECHANICAL AND ELECTRICAL (SHENZHEN) Co.,Ltd. |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20180613 Granted publication date: 20150610 |
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| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210613 Granted publication date: 20150610 |
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| PP01 | Preservation of patent right |
Effective date of registration: 20210613 Granted publication date: 20150610 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230613 Granted publication date: 20150610 |
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| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230613 Granted publication date: 20150610 |
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| DD01 | Delivery of document by public notice |
Addressee: Zhu Bairui Document name: Notice of Termination of Suspension Procedure |
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| DD01 | Delivery of document by public notice |