CN206211806U - A kind of DC micromotor for improving operation stability - Google Patents
A kind of DC micromotor for improving operation stability Download PDFInfo
- Publication number
- CN206211806U CN206211806U CN201621140641.8U CN201621140641U CN206211806U CN 206211806 U CN206211806 U CN 206211806U CN 201621140641 U CN201621140641 U CN 201621140641U CN 206211806 U CN206211806 U CN 206211806U
- Authority
- CN
- China
- Prior art keywords
- brush
- micromotor
- operation stability
- end cap
- metal stator
- 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
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- Motor Or Generator Current Collectors (AREA)
- Motor Or Generator Frames (AREA)
Abstract
A kind of DC micromotor for improving operation stability, it includes casing, the stator module being contained in casing and the rotor assembly equipped with commutator.The direct current generator also includes being arranged on the end cap of casing side, the end cap includes offering the plastic end cover body of bearing hole and at least two brush assembly of electric for being symmetricly set on end cap body upper surface, each of which brush assembly of electric includes brush, it is used to house the metal stator of the brush, the conducting strip being connected with metal stator, the power line being connected with conducting strip, it is arranged on the projection of metal stator side, the salient point being arranged on the outside of projection and the torsion spring being sheathed on projection, enable the electric connection of brush and commutator stabilization, so as to greatly improve the stability and its service life of motor.
Description
【Technical field】
This hair utility model is related to a kind of DC micromotor, more particularly to direct current generator end cap.
【Background technology】
At present, the brush of the direct current generator of prior art is general by having brush stator springy, installed in motor
On end cap, brush makes electrical contact with commutator, during commutator rotates with electronics rotor, the loss that brush can be slowly,
Therefore after brush consumption has been worn and torn, motor is accomplished by the brush for more renewing, and prior art center brush by brush due to being fixed
The limited length of piece is shorter to have worn and torn quickly, and the requirement of prior art center brush stator formed precision, and its offer
Elastic force it is unstable hence in so that brush and commutator can cause to be electrically connected with high speed rotates it is unstable, so as to influence motor
Performance.
【Utility model content】
The purpose of this utility model is to provide a kind of DC micromotor for improving operation stability, using the teaching of the invention it is possible to provide so that
The direct current generator that stabilization is electrically connected between brush and commutator is so as to the stability of lifting motor performance and the peace of guarantee motor
Entirely and long lifespan.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that：It is a kind of to improve the micro- of operation stability
Type direct current generator, it includes casing, the stator module being contained in casing and the rotor assembly equipped with commutator, wherein described straight
Stream motor also includes being arranged on the end cap of casing side, and the end cap includes offering the plastic end cover body of bearing hole and at least
Two brush assembly of electric for being symmetricly set on end cap body upper surface, each of which brush assembly of electric includes brush, is used to house
Power line that the conducting strip that the metal stator of the brush is connected with metal stator is connected with conducting strip, it is arranged on
The projection of metal stator side, the salient point being arranged on the outside of projection and the torsion spring being sheathed on projection, the one end are supported
It is held in the salient point other end and is held in the afterbody of brush so as to give brush one radial load of applying so that brush turns with motor
Commutator stabilization on son is contacted.
Preferably, the metal stator includes roof and bends the first side for extending formation downwards from roof both sides
Wall and second sidewall, the roof, the first side wall, second sidewall and conducting strip are enclosed and set to form a receiving space, and the brush is received
It is dissolved in the receiving space.
Preferably, the first side wall is all provided with fluted with second sidewall, and the groove is recessed forward from side wall rear end, institute
One end of torsion spring is stated to be offseted with the afterbody of brush in receiving space through the groove and extending into.
Preferably, the metal stator is mutually fixed with conducting strip by way of welding.
Preferably, it is additionally provided with auxiliary conductor on the end cap, described auxiliary conductor one end is connected the other end with conducting strip
It is connected with brush.
Preferably, the metal stator is bent to form by punching press.
Preferably, the brush material can select silver-colored graphite, copper graphite or electrographite.
Preferably, the plastic end cover body is provided with some symmetrically arranged screwed holes, and the end cap is fixed by screw
It is installed on casing.
Compared with prior art, DC micromotor of the present utility model is provided with a torsion spring by torsion spring on end cap
Elastic force provides the radial load of brush one so that brush is contacted with the commutator stabilization on rotor and obtains electrically connecting for stabilization
Connect, so as to greatly improve the stability and its service life of motor.
【Brief description of the drawings】
Fig. 1 is the stereogram of the end cap of the utility model DC micromotor.
【Specific embodiment】
A kind of DC micromotor (not shown) for improving operation stability, it can be used to start engine.It is described miniature straight
Stream motor includes motor case (not shown), the stator module (not shown) being arranged in the hollow part of motor case and installs
The rotor assembly (not shown) for having commutator (not shown) is, the end cap for being fixed on described motor case one end.
It is the end cap schematic diagram of DC micromotor of the present utility model with further reference to Fig. 1, the end cap 100 includes
The end cap body 1 being made of plastics and the brush assembly of electric 2 being arranged on end cap body, bearing is offered on the end cap body 1
Hole 11.The quantity of the brush assembly of electric is two and is oppositely arranged on the both sides of end cap body in the present embodiment, but basis
Different use demands can set four or more.Each described brush assembly of electric includes one substantially in the electricity of rectangular-shape
Brush 21, it is used to house conducting strip 23 and conducting strip that the metal stator 22 of the brush 21 is connected with metal stator 22
23 power lines 24 being connected, the projection 25 for being arranged on the left side of metal stator 23 or right side and the torsion spring being sheathed on projection 25
26.The upper surface of the end cap 100 is additionally provided with two salient points 28, and the salient point 28 is located at the outside of projection 25 respectively.The torsion spring 26
One end is held in the afterbody that the other end on the salient point 28 of end cap 100 is held in brush 21, and one is applied so as to give the brush 21
Individual radial load causes that the stabilization (not shown) with the commutator on rotor (not shown) of brush 21 is contacted so as to increase motor
Stability.One can be fixed by welding between the conducting strip 23 and the metal stator 22 in the present embodiment
Rise, it is not limited to this, it is also possible to it is bent to form by Multi-step forming by same sheet metal.The metal stator 22 by
Metal stamping forms the first side wall 222 and second sidewall that it includes roof 221 and bends extension downwards from the both sides of roof 221
223, the first side wall 222, second sidewall 223, roof 221 and conducting strip 23 enclose jointly set to be formed extend before and after one in length
The receiving space of cube, the brush is contained in the receiving space, and can be by the length of first, second side wall of increase
The length for spending to increase the length of receiving space so as to increase brush 21, the longevity is consumed so as to greatly improve using for brush 21
Life.The brush 21 can be silver-colored graphite, copper graphite or electrographite.The first side wall 222 also sets with second sidewall 223
Fluted 224, the groove 224 is recessed forward from side wall rear end, and one end of the torsion spring 26 passes through the groove 224 and extends
Enter and offseted with the afterbody of brush 21 in receiving space.
Auxiliary conductor 27 is additionally provided with the end cap 100 of the motor, the one end of the auxiliary conductor 27 is connected with conducting strip 23
The other end is connected with brush 21, be used to prevent to be contacted between conducting strip 23 and metal stator 22 failure cause brush 21 with it is conductive
The open circuit of piece 23, extra increased auxiliary conductor 27 considerably increases the reliability and its service life of motor.
The plastic end cover body 1 is provided with some symmetrically arranged screwed holes 28, and the end cap is fixedly mounted by screw
In on casing.
Most excellent implementation method of the present utility model is the foregoing is only, is not all of or unique implementation method, this
It is any equivalent that field those of ordinary skill is taken technical solutions of the utility model by reading the utility model specification
Change, be claim of the present utility model and covered.
Claims (8)
1. it is a kind of improve operation stability DC micromotor, it includes casing, the stator module and dress being contained in casing
There is the rotor assembly of commutator, the direct current generator also includes being arranged on the end cap of casing side, and the end cap includes offering
The plastic end cover body of bearing hole and at least two brush assembly of electric for being symmetricly set on end cap body upper surface, it is characterised in that：
Each brush assembly of electric includes brush, be used to house that the metal stator of the brush is connected with metal stator leads
Power line that electric piece is connected with conducting strip, the projection for being arranged on metal stator side, the salient point being arranged on the outside of projection and
The torsion spring on projection is sheathed on, the one end is held in the afterbody that the salient point other end is held in brush.
2. the DC micromotor of operation stability is improved as claimed in claim 1, it is characterised in that：The metal stator
Bent including roof and downwards from roof both sides and extend the first side wall and second sidewall that are formed, the roof, the first side wall, the
Two side walls and conducting strip are enclosed and set to form a receiving space, and the brush is contained in the receiving space.
3. the DC micromotor of operation stability is improved as claimed in claim 2, it is characterised in that：The first side wall with
Second sidewall is all provided with fluted, and the groove is recessed forward from side wall rear end, the torsion spring one end is through the groove and prolongs
Stretch into and offseted with the afterbody of brush in receiving space.
4. the DC micromotor of operation stability is improved as claimed in claim 2, it is characterised in that：The metal stator
Mutually fixed by way of welding with conducting strip.
5. the DC micromotor of operation stability is improved as claimed in claim 1, it is characterised in that：Also set on the end cap
There is an auxiliary conductor, described auxiliary conductor one end other end that is connected with conducting strip is connected with brush.
6. the DC micromotor of operation stability is improved as claimed in claim 2, it is characterised in that：The metal stator
It is bent to form by punching press.
7. the DC micromotor of operation stability is improved as claimed in claim 1, it is characterised in that：The brush material can
To select silver-colored graphite, copper graphite or electrographite.
8. the DC micromotor of operation stability is improved as claimed in claim 1, it is characterised in that：The plastic end cover sheet
Body is provided with some symmetrically arranged screwed holes, and the end cap is fixedly installed on casing by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621140641.8U CN206211806U (en) | 2016-10-19 | 2016-10-19 | A kind of DC micromotor for improving operation stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621140641.8U CN206211806U (en) | 2016-10-19 | 2016-10-19 | A kind of DC micromotor for improving operation stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206211806U true CN206211806U (en) | 2017-05-31 |
Family
ID=58757111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621140641.8U Expired - Fee Related CN206211806U (en) | 2016-10-19 | 2016-10-19 | A kind of DC micromotor for improving operation stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206211806U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378666A (en) * | 2018-10-16 | 2019-02-22 | 阿美德格工业技术（上海）有限公司 | Brush assembly of electric and motor |
-
2016
- 2016-10-19 CN CN201621140641.8U patent/CN206211806U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378666A (en) * | 2018-10-16 | 2019-02-22 | 阿美德格工业技术（上海）有限公司 | Brush assembly of electric and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20171019 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |