CN109510426A - A kind of axial direction magnetic suspension motor - Google Patents
A kind of axial direction magnetic suspension motor Download PDFInfo
- Publication number
- CN109510426A CN109510426A CN201910005533.1A CN201910005533A CN109510426A CN 109510426 A CN109510426 A CN 109510426A CN 201910005533 A CN201910005533 A CN 201910005533A CN 109510426 A CN109510426 A CN 109510426A
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- glue part
- magnet steel
- positioning glue
- positioning
- end cap
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The present invention relates to electric toothbrush technology field more particularly to a kind of axial magnetic suspension motors comprising installation shell, end cap, conducting wire turn and stator module；Rotor assembly includes insulating part, shaft, two coils, the first positioning glue part, the first magnet steel and the second positioning glue part；First magnet steel is fixedly arranged on respectively on the second positioning glue part；It is connected to the first positioning glue part, and two coils are set in limiting slot, and one end of shaft passes through insulating part, the first and second positioning glue part and stretches out from end cap, and the other end is pierced by from the bottom of installation shell；Stator module includes two magnetic shoes, third positioning glue part, second and third magnet steel, and two magnetic shoes are set to the two sides of insulating part, and the second magnet steel is fixedly arranged on third positioning glue part, is sheathed on the first positioning glue part, third magnet steel is fixedly arranged in the accommodating chamber of end cap；One end of conducting wire is connected to two coils, and the other end passes through the first and third positioning glue part and draws from end cap, increases the amplitude of oscillation, extend service life, reduce noise, using effect is good.
Description
Technical field
The present invention relates to electric toothbrush technology field more particularly to a kind of axial magnetic suspension motors.
Background technique
In recent years, electric toothbrush reduces tooth therefore scorching and tooth since it than ordinary toothbrush can more thoroughly remove plaque
Bleeding, can more scientific effectively tooth is cleaned and receive the masses and like.Its core component is the horse of electric toothbrush
It reaches, by powering to motor, drives the brush head of toothbrush to rotate or shake and decompose toothpaste and friction cleaning is carried out to tooth.
Common electric toothbrush sound wave motor in the market is rotated using magnetic interaction principle driving rotor, is then led to
It crosses reduction torsion spring reset workmanship and turns to original position again.The prior art mainly adopts be 2 pieces or muti-piece magnetite material or it is logical
Electromagnet after electricity generates magnetic field environment, and reduction torsion spring is then sleeved on rotor shaft, is fixed with screw or card slot.It is such
The elastic element of the motor of structure is vulnerable, and motor drive shaft swing angle is small, after using the time longer so as to cause electric toothbrush
Because of connection loosing, the service life of motor is shortened, and motor running sound control is not ideal enough, influence making for electric toothbrush
Use effect.
Summary of the invention
In order to overcome the above technical defects, it the object of the present invention is to provide a kind of axial magnetic suspension motor, not only increases
The amplitude of oscillation of shaft accelerates reaction speed, improves vibration frequency, and structure is simple, and easy to use, the service life is long, and noise is small, makes
It is good with effect, it can satisfy the market demand.
To achieve the above object, the present invention is achieved by the following technical programs:
A kind of axial direction magnetic suspension motor, including installation shell, end cap and are fixed at the mounting shell through the end cap at conducting wire
Rotor assembly and stator module in body accommodating chamber；
The rotor assembly includes insulating part, shaft, two coils, the first positioning glue part, several first magnet steel and second
Position glue part；Several described first magnet steel are fixedly arranged on respectively on the second positioning glue part；The second positioning glue part connection
In the first positioning glue part, two coils are correspondingly arranged in the limiting slot of the insulating part, one end difference of the shaft
It stretches out across the insulating part, the first positioning glue part and the second positioning glue part and from the end cap, the shaft
The other end from it is described installation shell bottom be pierced by；
The stator module includes two magnetic shoes, third positioning glue part, several second magnet steel and third magnet steel, two magnetic
The two sides of the insulating part watt are respectively correspondingly arranged in, several described second magnet steel are fixedly arranged on the third positioning glue part, institute
It states third positioning glue part to be sheathed on the first positioning glue part, the third magnet steel is fixedly arranged in the accommodating chamber of the end cap；
One end of the conducting wire is connected to two coils, and the other end is each passed through the first positioning glue part and institute
It states third positioning glue part and is drawn from the end cap.
More preferably, the shaft is equipped with two casings, and two casings set the rotor assembly and stator module positioning
In in the shaft.
More preferably, the shaft is equipped with two bearings, and the installation shell and end cap positioning are set to institute by two bearings
It states in shaft.
More preferably, elastomeric pad is additionally provided in the shaft, the elastomeric pad is respectively arranged on the bearing and the set
Between pipe.
More preferably, the both ends of the second positioning glue part are respectively equipped with the first card slot, several described first magnet steel difference
It is fixed in first card slot, the quantity of first magnet steel is two.
More preferably, it sets on the third positioning glue part there are four the second card slot, several described second magnet steel are fixed respectively
In second card slot, the quantity of second magnet steel is four.
More preferably, it is additionally provided with link block on the third positioning glue part, the end cap is connected to link block through screw thread
It is fixed on the third positioning glue part.
More preferably, it is set in the accommodating chamber of the end cap there are four third card slot, several described third magnet steel are fixed respectively
In the third card slot, the quantity of the third magnet steel is four.
More preferably, the insulating part is the " I " fonts silicon steel that " I " fonts electro-insulating rubber part or surface are equipped with insulating coating
Piece.
More preferably, the coating on the " I " fonts silicon steel sheet is polytetrafluorethylecoatings coatings, with a thickness of 0.1~0.3mm.
In conclusion the invention has the advantages that
1, because the first, second, and third magnet steel is incorporated into outside motor body, and their arrangement mode is changed,
Under identical motor dimension, magnet steel volume increases, and finally makes motor in identical voltage, and electric current torsion increases, not only reaction speed
Degree is fast, vibration frequency is high, and extends service life；
2, two magnetic shoes are respectively correspondingly arranged in the two sides of insulating part, do not use the structure of integral type, structure is simple, and is convenient for
Assembling, disassembly and use；
3, insulating part is designed using " I " fonts, and insulating part is the silicon steel that electro-insulating rubber part or surface are equipped with insulating coating
Piece increases the amplitude of oscillation of shaft, and easy to use, extends service life, reduces noise, and using effect is good, meets market
Demand.
Detailed description of the invention
Fig. 1 is configuration schematic diagram of the invention；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is the sectional view in Fig. 2 along line A-A；
Fig. 4 is the sectional view in Fig. 2 along line B-B；
Fig. 5 is side view of the invention；
Along the sectional view of line C-C in Fig. 6 Fig. 5；
Fig. 7 is the structural schematic diagram of end cap in the present invention；
Fig. 8 is the structural schematic diagram of third positioning glue part in the present invention；
Fig. 9 is existing spring motor and embodiment one and the progress relevant experimental data comparison of embodiment two in the present invention
Table.
100, installation shell, 101, bearing, 102, elastomeric pad, 103, casing, 200, rotor assembly, 201, insulating part,
202, shaft, 203, coil, the 204, first positioning glue part, the 205, first magnet steel, the 206, second positioning glue part, the 2061, first card
Slot, 300, stator module, 301, magnetic shoe, 302, third positioning glue part, the 3021, second card slot, 3022, link block, 303, second
Magnet steel, 304, third magnet steel, 400, end cap, 4001, accommodating chamber, 4002, third card slot, 500, conducting wire, 600, screw.
Specific embodiment
Invention is further described below in conjunction with attached drawing and specific embodiment:
Embodiment 1:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8, a kind of axial direction magnetic suspension motor, including installation shell
100, end cap 400, conducting wire 500 and through the end cap 400 be fixed at it is described installation 100 accommodating chamber of shell in rotor assembly
200 and stator module 300；
The rotor assembly 200 include insulating part 201, shaft 202, two coils 203, first positioning glue part 204, several
First magnet steel 205 and the second positioning glue part 206；The second positioning glue part 206 is connected to the first positioning glue part 204, if
Dry first magnet steel 205 is fixedly arranged on respectively on the second positioning glue part 206；Two coils 203 are correspondingly arranged at described
In the limiting slot of insulating part 201, one end of the shaft 202 is each passed through the insulating part 201, the first positioning glue part
204 and second positioning glue part 206 and stretched out from the end cap 400, the other end of the shaft 202 is from the mounting shell
The bottom of body 100 is pierced by；
The stator module 300 includes two magnetic shoes 301, third positioning glue part 302, several second magnet steel 303 and third
Magnet steel 304, two magnetic shoes 301 are respectively correspondingly arranged in the two sides of the insulating part 201, several described second magnet steel 303 are solid
On third positioning glue part 302, the third positioning glue part 302 is sheathed on the first positioning glue part 204, described
Third magnet steel 304 is fixedly arranged in the accommodating chamber 4001 of the end cap 400；
One end of the conducting wire 500 is connected to two coils 203, and the other end is each passed through the first positioning glue
Part 204 and third positioning glue part 302 are simultaneously drawn from the end cap 101.
Wherein, the shaft 202 is equipped with two casings 103, and two casings 103 are by the rotor assembly 200 and the stator
The positioning of component 300 is set in the shaft 202.
Wherein, the shaft 202 is equipped with two bearings 101, and two bearings 101 are by the installation shell 100 and the end cap
400 positioning are set in the shaft 202.
Wherein, elastomeric pad 102 is additionally provided in the shaft 202, the elastomeric pad 102 is respectively arranged on the bearing
Between 101 and described sleeve pipe 103, the elastomeric pad 102 is the elastomeric pad of silica gel or Fiber Materials, for eliminating axial dress
Gap between matching convenient for eliminating noise, and extends the service life of motor.
Wherein, the both ends of the second positioning glue part 206 are respectively equipped with the first card slot 2061, several described first magnet steel
205 are fixed at respectively in first card slot 2061, and the quantity of first magnet steel 205 is two.
Wherein, the second card slot 3021 there are four being set on the third positioning glue part 302, several described second magnet steel 303
It is fixed in second card slot 3021 respectively, the quantity of second magnet steel 303 is four.
Wherein, it is additionally provided with link block 3022 on the third positioning glue part 302, the end cap 400 connects through 600 screw thread of screw
Link block 3022 is connected to be fixed on the third positioning glue part 302.
Wherein, third card slot 4002 there are four being set in the accommodating chamber 4001 of the end cap 400, several described third magnet steel
304 are fixed at respectively in the third card slot 4002, and the quantity of the third magnet steel 304 is four.
Wherein, the insulating part 201 is " I " fonts electro-insulating rubber part.
Wherein, the first positioning glue part 204 of rotor assembly 200 and insulating part 201 are respectively arranged in shaft 202, and first is fixed
Position glue part 204 is set to the top of insulating part 201, and the second positioning glue part 206 is connected to the first positioning glue part 204, and there are two first
Magnet steel 205 is fixed on the second positioning glue part 206, and the first magnet steel 205 is moved synchronously with the holding of rotor assembly 200.
Wherein, two coils 203 of rotor assembly 300 are correspondingly arranged in the limiting slot of insulating part 201, one end of conducting wire 500
It is connected to two coils 203, the other end is each passed through the first positioning glue part 204 and third positioning glue part 302 and from end
It is drawn on lid 101, to meet coil 203 and the external needs being powered.
Wherein, four the second magnet steel 303 being fixed on third positioning glue part 302, are fixed on the accommodating chamber of end cap 400
Four third magnet steel 304 in 4001, end cap 400 are threadedly connected to link block 3022 through screw 600 and are fixed at third positioning
On glue part 302, four the second magnet steel 303 and four third magnet steel 304 is made to constitute a magnetic field space A.
Wherein, two magnetic shoes 301 of stator module 300 are respectively correspondingly arranged in the two sides of insulating part 201, make stator module 200
One magnetic field space B of interior composition.
Wherein, one end of shaft 202 is each passed through insulating part 201, first and positions glue part 204 and the second positioning glue part 206
And stretched out from end cap 400, the other end is pierced by from the bottom of installation shell 100, is in rotor assembly 200 by stator module
300 and end cap 400 constitute space in, the position of insulating part 201 and coil 203 is in magnetic field space B at this time, the first magnet steel
205 position is in magnetic field space A.
When work, by there is the power supply of the wiring board of intrinsic frequency Switching power positive and negative anodes, (every paper money 50-80 times is not shown in figure
Show) connecting wire 500, the coil 203 of rotor assembly 200 it is electric after so that insulating part 201 is generated electromagnetic force, and in magnetic field space B
The middle radial deflection campaign for generating 202 axle center around the shaft drives the first magnet steel 205 on the second positioning glue part 206 to make identical
Radial deflection campaign, with the increasing of deflection angle, the first magnet steel 205, which is in magnetic field space A, to be generated opposite resistance and also gets over
Greatly, finally overcome insulating part 201 generate electromagnetism torsion, so that rotor assembly 200 is stopped operating, coil 203 it is reversed it is electric when, produce
Raw opposite movement so in cycles forms the reciprocal radial amplitude of oscillation movement of 200 relative stator component 300 of rotor assembly.
Wherein, insulating part 201 is electro-insulating rubber part, not only reduces the cost of manufacture of this motor, and accelerates reaction speed
It spends, improve vibration frequency, and extend service life.
Embodiment 2:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8, a kind of axial direction magnetic suspension motor, including installation shell
100, end cap 400, conducting wire 500 and through the end cap 400 be fixed at it is described installation 100 accommodating chamber of shell in rotor assembly
200 and stator module 300；
The rotor assembly 200 include insulating part 201, shaft 202, two coils 203, first positioning glue part 204, several
First magnet steel 205 and the second positioning glue part 206；The second positioning glue part 206 is connected to the first positioning glue part 204, if
Dry first magnet steel 205 is fixedly arranged on respectively on the second positioning glue part 206；Two coils 203 are correspondingly arranged at described
In the limiting slot of insulating part 201, one end of the shaft 202 is each passed through the insulating part 201, the first positioning glue part
204 and second positioning glue part 206 and stretched out from the end cap 400, the other end of the shaft 202 is from the mounting shell
The bottom of body 100 is pierced by；
The stator module 300 includes two magnetic shoes 301, third positioning glue part 302, several second magnet steel 303 and third
Magnet steel 304, two magnetic shoes 301 are respectively correspondingly arranged in the two sides of the insulating part 201, several described second magnet steel 303 are solid
On third positioning glue part 302, the third positioning glue part 302 is sheathed on the first positioning glue part 204, described
Third magnet steel 304 is fixedly arranged in the accommodating chamber 4001 of the end cap 400；
One end of the conducting wire 500 is connected to two coils 203, and the other end is each passed through the first positioning glue
Part 204 and third positioning glue part 302 are simultaneously drawn from the end cap 101.
Wherein, the shaft 202 is equipped with two casings 103, and two casings 103 are by the rotor assembly 200 and the stator
The positioning of component 300 is set in the shaft 202.
Wherein, the shaft 202 is equipped with two bearings 101, and two bearings 101 are by the installation shell 100 and the end cap
400 positioning are set in the shaft 202.
Wherein, elastomeric pad 102 is additionally provided in the shaft 202, the elastomeric pad 102 is respectively arranged on the bearing
Between 101 and described sleeve pipe 103, the elastomeric pad 102 is the elastomeric pad of silica gel or Fiber Materials, for eliminating axial dress
Gap between matching convenient for eliminating noise, and extends the service life of motor.
Wherein, the both ends of the second positioning glue part 206 are respectively equipped with the first card slot 2061, several described first magnet steel
205 are fixed at respectively in first card slot 2061, and the quantity of first magnet steel 205 is two.
Wherein, the second card slot 3021 there are four being set on the third positioning glue part 302, several described second magnet steel 303
It is fixed in second card slot 3021 respectively, the quantity of second magnet steel 303 is four.
Wherein, it is additionally provided with link block 3022 on the third positioning glue part 302, the end cap 400 connects through 600 screw thread of screw
Link block 3022 is connected to be fixed on the third positioning glue part 302.
Wherein, third card slot 4002 there are four being set in the accommodating chamber 4001 of the end cap 400, several described third magnet steel
304 are fixed at respectively in the third card slot 4002, and the quantity of the third magnet steel 304 is four.
Wherein, the insulating part 201 is the " I " fonts silicon steel sheet that surface is equipped with insulating coating.
Wherein, the coating on the silicon steel sheet is polytetrafluorethylecoatings coatings, with a thickness of 0.1~0.3mm.
The working principle and embodiment one of the present embodiment are identical, and only insulating part 201 is the silicon that surface is equipped with insulating coating
Steel disc, the coating on silicon steel sheet is polytetrafluorethylecoatings coatings, with a thickness of 0.1~0.3mm, the design accelerate reaction speed,
Vibration frequency is improved, and structure is simple, easy to use, the service life is long, and noise is small, and using effect is good, can satisfy the market demand.
In order to test the service life of electric toothbrush motor in the present invention, the special reality in existing spring motor and the present invention
It applies example one and embodiment two carries out related experiment；
Test purpose: for toothbrush motor continuous service for a period of time after, there is torsion reduction, swinging pair degree is not advised
Then, noise increase or shut down phenomenon, examine day inspire confidence in motor exploitation magnetic suspension motor to these characteristics either with or without improvement；
Test method: using analog controller, and the power supply of controller exports 50-80 times per second energization frequency.Motor dress
With after head toothbrushes it is every operation 50 hours after, additionally on the head apply 200g pressure load detection motor working torque forces and
Noise.
Its specific data is as shown in Figure 9.
In conclusion its amplitude of oscillation for not only increasing shaft of the invention, accelerates reaction speed, improves vibration frequency,
And structure is simple, easy to use, the service life is long, and noise is small, and using effect is good, can satisfy the market demand.
For those skilled in the art, it is various corresponding that other can be made according to above technical scheme and design
Change and deformation, and all these change and modification all should belong within the scope of protection of the claims of the present invention.
Claims (10)
1. a kind of axial direction magnetic suspension motor, including installation shell (100), end cap (400), conducting wire (500) and through the end cap (400)
The rotor assembly (200) and stator module (300) being fixed in described installation shell (100) accommodating chamber, it is characterised in that:
The rotor assembly (200) include insulating part (201), shaft (202), two coils (203), first positioning glue part (204),
Several first magnet steel (205) and the second positioning glue part (206)；Several described first magnet steel (205) are fixedly arranged on described respectively
In second positioning glue part (206)；Second positioning glue part (206) is connected to first positioning glue part (204), two lines
Circle (203) is correspondingly arranged in the limiting slot of the insulating part (201), and one end of the shaft (202) is each passed through the insulation
Part (201), first positioning glue part (204) and second positioning glue part (206) are simultaneously stretched out from the end cap (400),
The other end of the shaft (202) is pierced by from the bottom of installation shell (100)；
The stator module (300) include two magnetic shoes (301), third positioning glue part (302), several second magnet steel (303) and
Third magnet steel (304), two magnetic shoes (301) are respectively correspondingly arranged in the two sides of the insulating part (201), several described second
Magnet steel (303) is fixedly arranged on third positioning glue part (302), and it is fixed that third positioning glue part (302) is sheathed on described first
On position glue part (204), the third magnet steel (304) is fixedly arranged in the accommodating chamber (4001) of the end cap (400)；
One end of the conducting wire (500) is connected to two coils (203), and the other end is each passed through the first positioning glue
Part (204) and third positioning glue part (302) are simultaneously drawn from the end cap (101).
2. axial direction magnetic suspension motor according to claim 1, it is characterised in that: the shaft (202) is equipped with two casings
(103), the rotor assembly (200) and the stator module (300) positioning are set to the shaft (202) by two casings (103)
On.
3. axial direction magnetic suspension motor according to claim 2, it is characterised in that: the shaft (202) is equipped with two bearings
(101), the installation shell (100) and the end cap (400) positioning are set on the shaft (202) by two bearings (101).
4. axial direction magnetic suspension motor according to claim 3, it is characterised in that: be additionally provided with elastic cushion on the shaft (202)
Piece (102), the elastomeric pad (102) are respectively arranged between the bearing (101) and described sleeve pipe (103).
5. axial direction magnetic suspension motor according to claim 1, it is characterised in that: the both ends of second positioning glue part (206)
The first card slot (2061) are respectively equipped with, several described first magnet steel (205) are fixed at first card slot (2061) respectively
Interior, the quantity of first magnet steel (205) is two.
6. axial direction magnetic suspension motor according to claim 1, it is characterised in that: third positioning glue part (302) is equipped with
Four the second card slots (3021), several described second magnet steel (303) are fixed at respectively in second card slot (3021), institute
The quantity for stating the second magnet steel (303) is four.
7. axial direction magnetic suspension motor according to claim 6, it is characterised in that: also set on third positioning glue part (302)
Have link block (3022), the end cap (400) is threadedly connected to link block (3022) through screw (600) and is fixed at the third
It positions on glue part (302).
8. axial direction magnetic suspension motor according to claim 1, it is characterised in that: the accommodating chamber (4001) of the end cap (400)
It inside sets there are four third card slot (4002), several described third magnet steel (304) are fixed at the third card slot respectively
(4002) in, the quantity of the third magnet steel (304) is four.
9. axial direction magnetic suspension motor according to claim 1, it is characterised in that: the insulating part (201) is that " I " fonts are exhausted
Edge rubber parts or surface are equipped with the " I " fonts silicon steel sheet of insulating coating.
10. axial direction magnetic suspension motor according to claim 9, it is characterised in that: the coating on the " I " fonts silicon steel sheet
For polytetrafluorethylecoatings coatings, with a thickness of 0.1~0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005533.1A CN109510426B (en) | 2019-01-03 | 2019-01-03 | Axial magnetic levitation motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910005533.1A CN109510426B (en) | 2019-01-03 | 2019-01-03 | Axial magnetic levitation motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109510426A true CN109510426A (en) | 2019-03-22 |
| CN109510426B CN109510426B (en) | 2023-10-13 |
Family
ID=65756168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910005533.1A Active CN109510426B (en) | 2019-01-03 | 2019-01-03 | Axial magnetic levitation motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109510426B (en) |
Cited By (1)
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| Publication number | Publication date |
|---|---|
| CN109510426B (en) | 2023-10-13 |
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Address after: 523000, 7 building, 5 Industrial Zone, No. 3, Jun FA Road, Peng Wu Village, Dong Keng Town, Dongguan, Guangdong. Applicant after: Guangdong Tianfu Motor Technology Co.,Ltd. Address before: 523000, 7 building, 5 Industrial Zone, No. 3, Jun FA Road, Peng Wu Village, Dong Keng Town, Dongguan, Guangdong. Applicant before: DONGGUAN TIANFU MOTOR TECHNOLOGY Co.,Ltd. |
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