CN205178782U - Micro motor brush subassembly - Google Patents
Micro motor brush subassembly Download PDFInfo
- Publication number
- CN205178782U CN205178782U CN201520749426.7U CN201520749426U CN205178782U CN 205178782 U CN205178782 U CN 205178782U CN 201520749426 U CN201520749426 U CN 201520749426U CN 205178782 U CN205178782 U CN 205178782U
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- CN
- China
- Prior art keywords
- conducting strip
- commutator
- brush
- splicing ear
- micro motor
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- 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.)
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Abstract
The utility model discloses a micro motor's brush subassembly, including base plate, connecting terminal and conducting strip, the base plate center is provided with the through -hole, is provided with a bayonet socket respectively along base plate the central axis bilateral symmetry position, and every bayonet fixed connects a connecting terminal, and each connecting terminal connects a conducting strip, the conducting strip is the U -shaped structure, and one side fixed connection of conducting strip is on connecting terminal, and the another side of conducting strip is close to the base plate central through hole. Adopt two U -shaped conducting strip symmetries to set up the brush subassembly that forms with the commutator contact, changed the elasticity orientation of brush to the commutator effect for brush elastic conducting strip in this brush subassembly is inside to the elasticity orientation of commutator, presss from both sides tight commutator orientation promptly, has strengthened the contact ability between brush and the commutator.
Description
Technical field
The utility model relates to field of motors, specifically relates to a kind of brush assembly of electric of micro motor.
Background technology
Brush is a strength member in micro motor parts, and its effect is that electric current is introduced armature winding.Existing brush structure generally adopts a pair elastic sheet metal composition.Fig. 1 is existing brush structure figure, and as shown in the figure, one end of brush contacts with commutator, and during work, brush is motionless.Rotor rotates under electromagnetic force, in the prior art, after rectification sub-member has assembled, again brush is in place and contacts with the conducting strip on commutator, need for coordinating the miniature design of vibrating motor, the structure of brush is in microminiaturized trend, be commutator between two elastic sheet metals, elastic sheet metal clamps commutator towards interior under the effect of elastic force, and commutator produces reaction force to elastic sheet metal, original brush elastic force direction is made to be outside, namely commutator direction is left, this product is when doing fall-down test, due to external force effect and cause brush outwards to open, finally cause brush and commutator loose contact, motor failure.
Under the situation that motor market competition is growing more intense, the production cost and the raising motor yield that reduce motor become a kind of inevitable choice, and product component function being merged also is that the one improving product competition advantage is selected.
Utility model content
The purpose of this utility model is to provide one and can closely cooperates with commutator and install simple brush assembly of electric, improves the stability of the overall performance of motor.Former splicing ear and terminal structure are merged into a part simultaneously, decrease a solder terminal station, also eliminate the terminal caused because of solder terminal to sink simultaneously, failure welding and bad etc. the problem of terminal flatness, to reduction motor cost and positive role of having enhanced productivity.
Adopt following technical scheme for achieving the above object:
A kind of brush assembly of electric of micro motor, comprise substrate, splicing ear and conducting strip, described substrate center is provided with through hole, a bayonet socket is respectively arranged with along substrate center's axis bilateral symmetry position, each bayonet socket is fixedly connected with a splicing ear, and each splicing ear connects a conducting strip, and described conducting strip is U-shaped structure, conducting strip while be fixedly connected on splicing ear, the another side of conducting strip is near substrate center's through hole.
In technique scheme, the side of described U-shaped conducting strip openend contacts with the commutator through substrate center's through hole and connects.
In technique scheme, two U-shaped conducting strips are symmetricly set on the both sides of commutator.
In technique scheme, the side that described U-shaped conducting strip contacts with commutator is provided with several breach, and each breach forms an electrically conductive elastic sheet.
In technique scheme, the mode of riveted joint between described conducting strip and splicing ear, is adopted to be fixed.
In technique scheme, the side of described splicing ear is provided with two barb-shaped structures, and described barb-shaped structure is inserted in the bayonet socket on substrate.
The beneficial effects of the utility model are: the utility model adopts two U-shaped conducting strips to be symmetrical arranged and contacts with commutator and the brush assembly of electric formed, change the elastic force direction of brush to commutator effect, the elastic force direction of the brush elastic conducting strip in this brush assembly of electric to commutator is made to be inside, namely clamp commutator direction, enhance the engagement capacity between brush and commutator.What the structure being connected and fixed sheet is increased terminal connects Electricity Functional, reduces welding procedure and eliminates failure welding, reduce motor production cost and enhance productivity, having good effect to the market competitiveness improving motor.
Accompanying drawing explanation
Fig. 1 is the structure chart of prior art center brush assembly apparatus;
The brush assembly of electric structure chart that Fig. 2 provides for the utility model embodiment;
Wherein: 1 is conducting strip, 2 is splicing ears, and 3 is metallic conduction sheets and the riveting point being connected and fixed sheet, and 4 is barbed portion of conducting strip head.
Embodiment
As shown in Figure 1, be the structural representation of existing brush assembly of electric, the working method of this structure and non-foot point are describing above.
As shown in Figure 2, the brush assembly of electric that the utility model provides, comprise at least one for producing U-shaped conducting strip and the brace of a clamping force towards commutator direction, U-shaped conducting strip in embodiment of the present utility model is symmetricly set in the both sides of commutator, the elastic force direction that this brush assembly of electric produces when being subject to commutator opposition is inside, namely towards the direction of commutator, such brush assembly of electric just can clamp commutator, even if also good contact effect can be formed with commutator under brush is subject to External Force Acting, solve product and cause cold failure mode because brush opens falling in reliability test.
In actual installation process, the side of U-shaped conducting strip is fixed on splicing ear, splicing ear is fixed on end cap, in order to ensure the reliability that splicing ear is fixing, the side of splicing ear is provided with two barb-shaped structures, and when being inserted into when splicing ear like this in the breach on end cap, barb-shaped structure is squeezed power, make barb outwards apply tension force, tension force makes splicing ear and end cap connect as one firmly.
Adopt the mode of riveted joint between U-shaped conducting strip and splicing ear, such connected mode can avoid welding between conducting strip with splicing ear, reduces the solder terminal that produces in welding process and sink, failure welding and bad etc. the problem of terminal flatness.
The side that U-shaped conducting strip contacts with commutator arranges several breach, each breach forms an electrically conductive elastic sheet, make that whole U-shaped conducting strip has several electrically conductive elastic sheets, effectively can promote the elasticity of shell fragment and the life-span of shell fragment in the course of the work.
In practical operation, U-shaped conducting strip also can adopt M shape conducting strip, and the connected mode of M shape conducting strip is the same with U-shaped conducting strip, and the bending part of M type conducting strip or U-shaped conducting strip instead of the terminal needing other welding processing in the past, serves as the both positive and negative polarity that motor connects electricity.
All features disclosed in this specification, except mutually exclusive feature, all can combine by any way.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (5)
1. the brush assembly of electric of a micro motor, it is characterized in that comprising substrate, splicing ear and conducting strip, described substrate center is provided with through hole, a bayonet socket is respectively arranged with along substrate center's axis bilateral symmetry position, each bayonet socket is fixedly connected with a splicing ear, each splicing ear connects a conducting strip, described conducting strip is U-shaped structure, conducting strip while be fixedly connected on splicing ear, the another side of conducting strip is near substrate center's through hole, the side of described splicing ear is provided with two barb-shaped structures, described barb-shaped structure is inserted in the bayonet socket on substrate.
2. the brush assembly of electric of a kind of micro motor according to claim 1, is characterized in that the side of described U-shaped conducting strip openend contacts with the commutator through substrate center's through hole and connects.
3. the brush assembly of electric of a kind of micro motor according to claim 2, is characterized in that two U-shaped conducting strips are symmetricly set on the both sides of commutator.
4. the brush assembly of electric of a kind of micro motor according to claim 3, it is characterized in that the side that described U-shaped conducting strip contacts with commutator is provided with several breach, each breach forms an electrically conductive elastic sheet.
5. the brush assembly of electric of a kind of micro motor according to claim 1, is characterized in that adopting the mode of riveted joint to be fixed between described conducting strip and splicing ear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520749426.7U CN205178782U (en) | 2015-09-25 | 2015-09-25 | Micro motor brush subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520749426.7U CN205178782U (en) | 2015-09-25 | 2015-09-25 | Micro motor brush subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205178782U true CN205178782U (en) | 2016-04-20 |
Family
ID=55742712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520749426.7U Active CN205178782U (en) | 2015-09-25 | 2015-09-25 | Micro motor brush subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205178782U (en) |
-
2015
- 2015-09-25 CN CN201520749426.7U patent/CN205178782U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171206 Address after: No. 8188, No. 8188, Dayan highway, Shanghai, Shanghai Patentee after: SHANGHAI ANHE PRECISION ELECTRONIC APPLIANCE CO.,LTD. Address before: 621000 Mianyang province Sichuan City Feiyun Avenue East No. 261 Patentee before: SICHUAN ANHE PRECISION ELECTRONIC ELECTRICAL APPLIANCES CO., LTD. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20200928 Address after: No. 261, Eastern Section of Feiyun Avenue, Mianyang High-tech Zone, Sichuan Province, 621000 Patentee after: SICHUAN AWA SEIMITSU ELECTRIC Co.,Ltd. Address before: No. 8188, No. 8188, Dayan highway, Shanghai, Shanghai Patentee before: SHANGHAI ANHE PRECISION ELECTRONIC APPLIANCE Co.,Ltd. |
|
| TR01 | Transfer of patent right |