CN207069720U - A kind of electric toothbrush brushless electric machine - Google Patents
A kind of electric toothbrush brushless electric machine Download PDFInfo
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- CN207069720U CN207069720U CN201720635836.8U CN201720635836U CN207069720U CN 207069720 U CN207069720 U CN 207069720U CN 201720635836 U CN201720635836 U CN 201720635836U CN 207069720 U CN207069720 U CN 207069720U
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- rotor
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- poppet
- core
- electric machine
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Abstract
The utility model discloses a kind of electric toothbrush brushless electric machine, it includes fore-stock, the after-poppet being set up in parallel, stator is fixedly connected between the fore-stock, after-poppet, rotor is rotationally provided with the stator, the rotor includes rotating shaft, rotor core and two permanent magnets, the rotating shaft is rotatablely arranged at the fore-stock, on after-poppet, the rotor core is fixed in the rotating shaft, and the axis of the two permanent magnets relative rotor iron core is symmetricly set on the periphery of the rotor core.The utility model is reasonable in design ingenious, without back-moving spring, but after magnetic field caused by being powered in stator disconnects, under rotor is acted on the absorption affinity of stator core by itself permanent magnet, realizes the position for automatically restoring to balance.So as to effectively avoid the destabilizing factor brought by back-moving spring, while reduce the volume of motor, improve efficiency, improve the frequency of response.
Description
Technical field
It the utility model is related to motor, and in particular to a kind of electric toothbrush brushless electric machine.
Background technology
For electric toothbrush brushless electric machine generally in being mounted with a torsion spring in rotating shaft, shaft end is fixed in one end of torsion spring at present,
The other end is fixed on end cap, and when rotor left or right deflects, torsion spring twists deformation, when outer torsion removes (that is, electricity
Source powers off), under the shape inotropic action of torsion spring, rotor returns to original equilbrium position, so as to ensure the continuous cycling cycling vibration of rotor.
But the disadvantage resetted with torsion spring is, in the case where the circulation of high frequency is reversed fatigue fracture easily occurs for spring, causes motor
Usage time is short, and stability is poor.
Utility model content
In order to solve the above problems, the utility model discloses a kind of electric toothbrush brushless electric machine.
Used technical scheme is the utility model to achieve the above object：
A kind of electric toothbrush brushless electric machine, it includes fore-stock, the after-poppet being set up in parallel, in the fore-stock, rear branch
Stator is fixedly connected between frame, rotor is rotationally provided with the stator, the rotor includes rotating shaft, rotor core and two
Permanent magnet, the rotating shaft are rotatablely arranged at the fore-stock, on after-poppet, and the rotor core is fixed in the rotating shaft, institute
The axis for stating two permanent magnet relative rotor iron cores is symmetricly set on the periphery of the rotor core.
The cross section of the rotor core is racetrack, and two permanent magnet is arranged at two arc-shaped curved surfaces of the rotor core
On.
The permanent magnet is strip.
The stator includes stator core, and the inner side of the stator core corresponds to the rotor and is provided with several coiling positions, in
Stator winding is wound with the coiling position.
The fore-stock, after-poppet are provided with bearing, and the rotating shaft is rotatably fixed to the preceding branch by the bearing
On frame, after-poppet.
The inner side of the stator core corresponds to the rotor and is provided with 4 coiling positions.
The cross section of the permanent magnet is arc-shaped.
The coiling position is T-shaped post.
The beneficial effects of the utility model are：The utility model is reasonable in design ingenious, without back-moving spring, but
After magnetic field caused by stator energization disconnects, under rotor is acted on the absorption affinity of stator core by itself permanent magnet, realize automatic
Return to the position of balance.So as to effectively avoid the destabilizing factor brought by back-moving spring, while reduce the volume of motor, carry
High efficiency, improve the frequency of response.
Below in conjunction with the accompanying drawings with embodiment, the utility model is further illustrated.
Brief description of the drawings
Fig. 1 is sectional view of the present utility model；
Fig. 2 is the F direction views in Fig. 1.
Embodiment
Embodiment, referring to Fig. 1 and Fig. 2, a kind of electric toothbrush brushless electric machine of the present embodiment offer, it includes setting side by side
Fore-stock 1, the after-poppet 2 put, stator 3 is fixedly connected between the fore-stock 1, after-poppet 2, rotatable in the stator 3
Ground is provided with rotor 4, and the rotor 4 includes rotating shaft 41, the permanent magnet 43 of rotor core 42 and two, and the rotating shaft 41 is rotationally set
It is placed in the fore-stock 1, on after-poppet 2, the rotor core 42 is fixed in the rotating shaft 41, the relative rotor of two permanent magnet 43
The axis of iron core 42 is symmetricly set on the periphery of the rotor core 42.
The cross section of the rotor core 42 is racetrack, and two permanent magnet 43 is arranged at two arcs of the rotor core 42
On shape curved surface.
The permanent magnet 43 is strip.
The stator 3 includes stator core 31, and the inner side of the stator core 31 corresponds to the rotor 4 and is provided with several coilings
Position 311, in being wound with stator winding 312 on the coiling position 311.
The fore-stock 1, after-poppet 2 are provided with bearing 5, and the rotating shaft 41 is rotatably fixed to by the bearing 5
On the fore-stock 1, after-poppet 2.
The inner side of the stator core 31 corresponds to the rotor 4 and is provided with 4 coiling positions 311.
The cross section of the permanent magnet 43 is arc-shaped.
The coiling position 311 is T-shaped post.
When producing magnetic field after the coil electricity of stator 3, the magnetic pole of rotor 4 and the stator 3 caused magnetic field interaction that is powered make
Rotor 4 deflects vibration electric currents when disconnecting, in the presence of permanent magnet 43 is to the absorption affinity of stator core 31, rotor 4
The position balanced originally with returning to is when changing polarity (the i.e. positive and negative polarity) for the power supply that stator winding 312 connects, rotor 4
Magnetic pole and stator 3 be powered caused by magnetic field interaction cause rotor 4 to deflect vibration in the opposite direction.Such checker electricity
The both positive and negative polarity in source, the side-to-side vibrations in stator 3 of rotor 4 are got up.
The utility model is reasonable in design ingenious, and without back-moving spring, but magnetic field caused by being powered in stator 3 disconnects
Afterwards, under rotor 4 is acted on the absorption affinity of stator core 31 by itself permanent magnet 43, the position for automatically restoring to balance is realized.
So as to effectively avoid the destabilizing factor brought by back-moving spring, while reduce the volume of motor, improve efficiency, improve response
Frequency.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is made any formal
Limitation.Any those skilled in the art, it is all available in the case where not departing from technical solutions of the utility model ambit
The technological means and technology contents of the disclosure above make many possible changes and modifications to technical solutions of the utility model, or repair
It is changed to the equivalent embodiment of equivalent variations.Therefore every content without departing from technical solutions of the utility model, according to the utility model
The equivalence changes made of shape, construction and principle, all should be covered by the scope of protection of the utility model.
Claims (8)
1. a kind of electric toothbrush brushless electric machine, it includes fore-stock, the after-poppet being set up in parallel, it is characterised in that：Before this
Stator is fixedly connected between support, after-poppet, rotor is rotationally provided with the stator, the rotor includes rotating shaft, turned
Sub- iron core and two permanent magnets, the rotating shaft are rotatablely arranged at the fore-stock, on after-poppet, and the rotor core is fixed on this
In rotating shaft, the axis of the two permanent magnets relative rotor iron core is symmetricly set on the periphery of the rotor core.
2. electric toothbrush brushless electric machine according to claim 1, it is characterised in that the cross section of the rotor core is
Racetrack, two permanent magnet are arranged on two arc-shaped curved surfaces of the rotor core.
3. electric toothbrush brushless electric machine according to claim 2, it is characterised in that the permanent magnet is strip.
4. electric toothbrush brushless electric machine according to claim 1, it is characterised in that the stator includes stator core,
The inner side of the stator core corresponds to the rotor and is provided with several coiling positions, in being wound with stator winding on the coiling position.
5. electric toothbrush brushless electric machine according to claim 1, it is characterised in that set on the fore-stock, after-poppet
There is a bearing, the rotating shaft is rotatably fixed to the fore-stock, on after-poppet by the bearing.
6. electric toothbrush brushless electric machine according to claim 4, it is characterised in that the inner side of the stator core corresponds to institute
State rotor and be provided with 4 coiling positions.
7. electric toothbrush brushless electric machine according to claim 3, it is characterised in that the cross section of the permanent magnet is
Arc-shaped.
8. electric toothbrush brushless electric machine according to claim 4, it is characterised in that the coiling position is T-shaped post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720635836.8U CN207069720U (en) | 2017-06-03 | 2017-06-03 | A kind of electric toothbrush brushless electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720635836.8U CN207069720U (en) | 2017-06-03 | 2017-06-03 | A kind of electric toothbrush brushless electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207069720U true CN207069720U (en) | 2018-03-02 |
Family
ID=61505169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720635836.8U Active CN207069720U (en) | 2017-06-03 | 2017-06-03 | A kind of electric toothbrush brushless electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207069720U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521178A (en) * | 2018-06-12 | 2018-09-11 | 余姚市科达微电机制造有限公司 | A kind of restricted corner acoustic vibration motor of magnetic field quadrupole positioning |
| CN108667255A (en) * | 2018-06-05 | 2018-10-16 | 三椒口腔健康股份有限公司 | A kind of electric toothbrush vibrating motor |
-
2017
- 2017-06-03 CN CN201720635836.8U patent/CN207069720U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667255A (en) * | 2018-06-05 | 2018-10-16 | 三椒口腔健康股份有限公司 | A kind of electric toothbrush vibrating motor |
| CN108521178A (en) * | 2018-06-12 | 2018-09-11 | 余姚市科达微电机制造有限公司 | A kind of restricted corner acoustic vibration motor of magnetic field quadrupole positioning |
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