CN108199538A - A kind of servo wheel hub motor - Google Patents
A kind of servo wheel hub motor Download PDFInfo
- Publication number
- CN108199538A CN108199538A CN201810099024.5A CN201810099024A CN108199538A CN 108199538 A CN108199538 A CN 108199538A CN 201810099024 A CN201810099024 A CN 201810099024A CN 108199538 A CN108199538 A CN 108199538A
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- Prior art keywords
- wheel hub
- hub motor
- chamber
- shaft core
- fixed
- Prior art date
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/0094—Structural association with other electrical or electronic devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/01—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for shielding from electromagnetic fields, i.e. structural association with shields
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses a kind of servo wheel hub motors, include rotor assembly；Stator module is set within the rotor assembly；Drive end bearing bracket is fixed at the front end face of the rotor assembly；Rear end cap, it is fixed at the rear end face of the rotor assembly, it corresponds to the end of shaft core in the stator module and is formed with a chamber resettling, and the chamber resettling includes a first chamber for housing the shaft core end and the second chamber on the inside of the first chamber；Encoder, including multistage magnet steel and magnetoelectric transducer, the multistage magnet steel is fixed in the second chamber, the magnetoelectric transducer is fixed on the end of the shaft core, and it is corresponding with the multistage magnet steel, the signal wire on the magnetoelectric transducer is connected to the output signal line in stator module to export detection signal.It is installed inside the servo wheel hub motor of the present invention for encoder so that when servo wheel hub motor works, be installed on the encoder inside servo wheel hub motor and work.
Description
Technical field
The present invention relates to technical field of motors, relate more specifically to a kind of servo wheel hub motor.
Background technology
Wheel hub motor technology is also referred to as wheel inner electric machine technology, its maximum feature is exactly by power plant, transmission
Device and control device are all integrated in wheel hub, are able to the mechanical part of electric vehicle is greatly simplified.Wheel hub motor drives
Dynamic system is broadly divided into two kinds of structure types according to the rotor configurations of motor：Inner-rotor-type and external-rotor-type.
And common electric rotating machine with encoder is internal rotor at present, by the rotating part and motor of encoder during use
Rotary shaft is connected, and as shaft core rotates together, stator, that is, casing part of encoder is connected with motor stator casing, i.e., whole
A encoder is assemblied in outside motor.And the characteristics of outer rotor hub motor is shaft core does not rotate, motor body i.e. shell
Encoder, can not be installed connection by rotation outside motor rotation case.
In consideration of it, it is necessary to provide a kind of inside for the servo wheel hub motor that encoder is installed to solve drawbacks described above.
Invention content
The technical problems to be solved by the invention are to provide the servo wheel hub motor that a kind of inside is installed for encoder.
In order to solve the above technical problems, the present invention provides a kind of servo wheel hub motor, the servo wheel hub motor includes：
Rotor assembly；
Stator module is set within the rotor assembly；
Drive end bearing bracket is fixed at the front end face of the rotor assembly；
Rear end cap is fixed at the rear end face of the rotor assembly, corresponds to the end of shaft core in the stator module
Place is formed with a chamber resettling, and the chamber resettling includes one for housing the first chamber of the shaft core end and positioned at institute
State the second chamber on the inside of first chamber；
Encoder, including multistage magnet steel and magnetoelectric transducer, the multistage magnet steel is fixed in the second chamber, described
Magnetoelectric transducer is fixed on the end of the shaft core, and corresponding with the multistage magnet steel, the signal on the magnetoelectric transducer
Line is connected to the output signal line in stator module to export detection signal.
Its further technical solution is：One is provided in the chamber resettling, the encoder is accommodated in electromagnetism therein
Shielding case.
Its further technical solution is：The electro-magnetic shielding cover includes rounded first top surface and from first top
The circular ring shape side wall that face edge extends downwardly, first top surface middle outwardly convex are formed with one first column,
First column is internally provided with one first circular hole, and the shaft core end set is in the circular ring shape side wall, the multistage
Magnet steel is fixed in first circular hole.
Its further technical solution is：The servo wheel hub motor has further included bushing, and the bushing is fixedly installed in institute
It states in second chamber, which is equipped with one second circular hole, and the multistage magnet steel is installed in second circular hole.
Its further technical solution is：The bushing is made of copper, aluminium or plastics.
Its further technical solution is：The rotor assembly includes wheel hub and rotor magnetic steel, and the rotor magnetic steel is set
In on the wheel hub inner peripheral surface, the stator module is set on the inside of the rotor magnetic steel, and the rear end cap and drive end bearing bracket are solid respectively
At the rear end face and front end face of the wheel hub.
Its further technical solution is：A non-inflatable tyre is installed on the hub periphery face.
Its further technical solution is：The stator module includes stator core, upper bearing (metal), lower bearing and shaft core, institute
It states stator core to be set in rotor assembly, multiple equally distributed stator salient poles is formed on the stator core peripheral surface, often
Coil is wound in a stator salient poles, the shaft core sequentially passes through upper bearing (metal), stator core, lower bearing and drive end bearing bracket,
And the upper bearing (metal) is fixed in the shaft core, the shaft core rear end is fixed with one for installing the installation of the magnetoelectric transducer
Disk, and the shaft core side offers an axial wire lead slot penetrated for the signal wire on magnetoelectric transducer, opposite side offers
One fairlead worn for output signal line.
Its further technical solution is：The rear end cap and drive end bearing bracket are fixedly installed in the rotor assembly by screw
Two end faces.
Compared with prior art, it is installed inside the servo wheel hub motor of the application for encoder, i.e. the servo of the application
The magnetoelectric transducer of encoder is installed on the end of shaft core in the stator module by wheel hub motor, and rear end cap corresponds to the axis
The end of core is formed with a chamber resettling, the chamber resettling include one for house the shaft core end first chamber and
The multistage magnet steel correspondence of encoder is fixed in the second chamber by the second chamber on the inside of the first chamber, and
Signal wire on the magnetoelectric transducer is connected to the output signal line in stator module to export detection signal, so as to compile
Inside code device reasonable installation to motor, when servo wheel hub motor works, rotor assembly rotation is installed in servo wheel hub motor
The encoder work in portion, i.e., described multistage magnet steel follow the rotor assembly to rotate, the angle of the multistage magnet steel of magnetoelectric transducer sensing
Change in location is spent, and is converted into position detection signal and is exported by signal wire to peripheral control unit.
Description of the drawings
Fig. 1 is the decomposition texture schematic diagram of one specific embodiment of the application servo wheel hub motor.
Fig. 2 is the dimensional structure diagram after the assembling of servo wheel hub motor shown in Fig. 1.
Fig. 3 be servo wheel hub motor shown in Fig. 2 A-A to schematic cross-sectional view.
Fig. 4 is that the right side of servo wheel hub motor shown in Fig. 2 regards schematic diagram.
Specific embodiment
To make those of ordinary skill in the art that the object, technical solutions and advantages of the present invention be more clearly understood, with
Under the present invention is further elaborated in conjunction with the accompanying drawings and embodiments.
Referring to figs. 1 to Fig. 4, Fig. 1 to Fig. 4 illustrates a specific embodiment of the application servo wheel hub motor 10.In attached drawing
In shown embodiment, the servo wheel hub motor 10 includes rear end cap 100, stator module 200, rotor assembly 300, front end
Lid 400 and encoder 500, the stator module 200 are set within the rotor assembly 300, and the drive end bearing bracket 400 is fixed
At the front end face of the rotor assembly 300；The rear end cap 100 is fixed at the rear end face of the rotor assembly 300, right
The end of shaft core 204 is formed with a chamber resettling in stator module 200 described in Ying Yu, and the chamber resettling includes one and is used for
The first chamber 102 and the second chamber 103 positioned at 102 inside of first chamber for housing 204 end of shaft core；The volume
Code device 500 includes multistage magnet steel 501 and magnetoelectric transducer, and the magnetoelectric transducer is installed on a wiring board 502, described more
Grade magnet steel 501 is fixed in the second chamber 103, and the wiring board 502 is fixed on the end of the shaft core 204, and solid
, the signal wire magnetoelectric transducer on corresponding with the multistage magnet steel 501 due to the magnetoelectric transducer on the wiring board 502
503 are connected to the output signal line in stator module 200 to export detection signal.It, can be by encoder 500 based on the design
Inside reasonable installation to motor 10 so that when servo wheel hub motor 10 works, the volume that is installed on inside servo wheel hub motor 10
Code device 500 works, i.e., when rotor assembly 300 rotates, because rear end cap 100 is fixed on the rotor assembly 300, then and multistage magnet steel
501 follow the rotor assembly 300 to rotate, the change in angular position of the multistage magnet steel 501 of magnetoelectric transducer sensing, and are converted into position
It puts detection signal to export to peripheral control unit by signal wire 503 so that peripheral control unit obtains high-precision servo wheel hub electricity
The working order of machine 10, so as to be conducive to accurately be controlled servo wheel hub motor 10.
In the embodiment shown in the figures, the rotor assembly 300 includes wheel hub 301 and rotor magnetic steel 302, described
Rotor magnetic steel 302 is set on 301 inner peripheral surface of wheel hub, and the stator module 200 is set on 302 inside of rotor magnetic steel, institute
Rear end cap 100 and drive end bearing bracket 400 is stated to be fixed on by screw at the rear end face and front end face of the wheel hub 301 respectively, and described
One non-inflatable tyre 303 is installed on 301 peripheral surface of wheel hub.
With continued reference to Fig. 3, Fig. 3 acceptances of the bid show output signal line 800.In certain embodiments, the stator module 200
Include stator core 201, upper bearing (metal) 202, lower bearing 203 and shaft core 204, the stator core 201 is set to rotor assembly
In 300, i.e., stator core 201 is set on 302 inside of rotor magnetic steel, and multiple uniform points are formed on 201 peripheral surface of stator core
The stator salient poles 207 of cloth are each wound with coil 208 in the stator salient poles 207, and the shaft core 204 sequentially passes through upper bearing (metal)
202nd, stator core 201, lower bearing 203 and drive end bearing bracket 400, and the upper bearing (metal) 202 is fixed in the shaft core 204, it is described
204 rear end of shaft core is fixed with one for installing the mounting disc 206 of the wiring board 502, and 204 side of shaft core offers one
The axial wire lead slot 205 penetrated for the signal wire 503 on magnetoelectric transducer, opposite side offer one and supply output signal line 800
The fairlead 209 worn, the mounting disc 206 and upper bearing (metal) 202 are respectively positioned in the first chamber 102.In the present embodiment, institute
It states signal wire 503 to penetrate into stator module 200 from wire lead slot 205, be correspondingly connected with output signal line 800, and the output
Signal wire 800 includes three phase lines 801 being connect with stator winding and is correspondingly connected with the signal wire 503 on magnetoelectric transducer
The first output signal line 802.
Preferably, in the present embodiment, the middle of the drive end bearing bracket 400 is formed with the accommodating sky of an accommodating lower bearing 203
Between 401, the mounting means of the lower bearing 203 and accommodating space 401 is tight fit installation, the mounting means with shaft core 204
For clearance fit, the upper bearing (metal) 202 and the mounting means of mounting disc 206 and the shaft core 204 are tight fit installation, described
The mounting means of upper bearing (metal) 202 and the first chamber 102 is clearance fit, i.e., upper bearing (metal) 202 and lower bearing 203 in the application
Outer shroud rotor assembly 300 is followed to rotate, and its inner ring does not rotate.
In certain embodiments, the servo wheel hub motor 10 has further included one and encoder 500 is accommodated in electricity therein
Magnetic shielding cover 600 and bushing 700, the electro-magnetic shielding cover 600 are set in chamber resettling, include one rounded first
Top surface 601 and the circular ring shape side wall 602 extended downwardly from 601 edge of the first top surface, among first top surface 601
Place's outwardly convex is formed with one first column 603, and first column 603 is internally provided with one first circular hole；Wherein, it is described
The first column 603 in electro-magnetic shielding cover 60 is set in the second chamber 103, first top surface 601 and annulus
Shape side wall 602 is set in the first chamber 102；The bushing 700 is fixedly installed in first circular hole, the bushing
700 are internally provided with one second circular hole, and the multistage magnet steel 501, which is adhesively fixed, to be installed in second circular hole；The stator module
Upper bearing (metal) 202 in 200 is located in the first chamber 102, and the mounting disc being installed in 200 rear end of stator module
206 and the magnetoelectric transducer that is installed in the mounting disc 206 be located in the circular ring shape side wall 602.In the present embodiment, the lining
Set 700 is made of copper, aluminium or plastics, and in some other embodiments, which can be used other non-magnet materials
It is made.Preferably, in the present embodiment, 600 tight fit of electro-magnetic shielding cover is pressed into the chamber resettling, the bushing
700 also tight fit be pressed into first circular hole.Based on the design of electro-magnetic shielding cover 600, maskable 10 external electromagnetic of motor
Interference of the signal to encoder 500.
The installation process of the servo wheel hub motor 10 is described in detail below：
First, 204 tight fit of shaft core is pressed into stator core 201, and 202 tight fit of upper bearing (metal) is pressed into described
In shaft core 204, a mounting disc 206, and the wiring board that magnetoelectric transducer will be equipped with are fixedly mounted in the rear end of shaft core 204
501 are installed by screw to mounting disc 206, and by wire lead slot 205 of the signal wire 503 on magnetoelectric transducer through shaft core 204
It penetrates in stator module 200, output signal line 800 is penetrated, and be pierced by through the other end to stator pack from one end of fairlead 209
In part 200, three phase lines 801 are connect with stator winding, the first output signal line 802 is correspondingly connected on magnetoelectric transducer
Signal wire 503；Then, 203 tight fit of lower bearing is pressed into the accommodating space 401 of drive end bearing bracket 400；By electro-magnetic shielding cover
600 tight fits are pressed into the chamber resettling of rear end cap 100, and 700 tight fit of bushing is pressed into the of electro-magnetic shielding cover 600
In one circular hole, and multistage magnet steel 501 is bonded on bushing 700；Shaft core 204, upper bearing (metal) 202 and circuit are most installed at last
The stator core 201 of plate 501 is installed to rotor assembly 300, and then assembling is equipped with the drive end bearing bracket 400 of lower bearing 203, refills
With rear end cap 100, and pass through screw and drive end bearing bracket 400 and rear end cap 100 are fixed in the both ends of the surface of rotor assembly 300, so far,
The assembling of motor 10 is completed.
In conclusion being installed inside the servo wheel hub motor of the application for encoder, i.e., the servo wheel hub of the application is electric
The magnetoelectric transducer of encoder is installed on the end of shaft core in the stator module by machine, and rear end cap corresponds to the end of the shaft core
A chamber resettling is formed at portion, which includes one for housing the first chamber of the shaft core end and positioned at institute
The second chamber on the inside of first chamber is stated, the multistage magnet steel correspondence of encoder is fixed in the second chamber, and the magnetic
Signal wire on electric transducer is connected to the output signal line in stator module to export detection signal, so as to which encoder is closed
Reason is installed to inside motor, when servo wheel hub motor works, rotor assembly rotation, and the volume being installed on inside servo wheel hub motor
Code device work, i.e., described multistage magnet steel follow the rotor assembly to rotate, the angle position of the multistage magnet steel of magnetoelectric transducer sensing
Variation, and be converted into position detection signal and exported by signal wire to peripheral control unit.
Limitation in any form is done the foregoing is merely the preferred embodiment of the present invention rather than to the present invention.This field
Technical staff various equivalent changes and improvement, all institutes within the scope of the claims can be imposed on the basis of above-described embodiment
The equivalent variations done or modification should all be fallen under the scope of the present invention.
Claims (9)
1. a kind of servo wheel hub motor, which is characterized in that the servo wheel hub motor includes：
Rotor assembly；
Stator module is set within the rotor assembly；
Drive end bearing bracket is fixed at the front end face of the rotor assembly；
Rear end cap is fixed at the rear end face of the rotor assembly, corresponds to the end shape of shaft core in the stator module
Cheng Youyi chamber resettling, the chamber resettling include one for the first chamber that houses the shaft core end and positioned at described the
Second chamber on the inside of one chamber；
Encoder, including multistage magnet steel and magnetoelectric transducer, the multistage magnet steel is fixed in the second chamber, the magnetoelectricity
Sensor is fixed on the end of the shaft core, and corresponding with the multistage magnet steel, and the signal wire on the magnetoelectric transducer connects
The output signal line in stator module is connected to export detection signal.
2. servo wheel hub motor as described in claim 1, it is characterised in that：One is provided in the chamber resettling by the volume
Code device is accommodated in electro-magnetic shielding cover therein.
3. servo wheel hub motor as claimed in claim 2, it is characterised in that：The shielding case includes a first rounded top
Face and the circular ring shape side wall extended downwardly from first top edge, first top surface middle outwardly convex are formed
There is one first column, first column is internally provided with one first circular hole, and the shaft core end set is in the circular ring shape
In side wall, the multistage magnet steel is fixed in first circular hole.
4. servo wheel hub motor as described in claim 1, it is characterised in that：The servo wheel hub motor has further included bushing,
The bushing is fixedly installed in the second chamber, which is equipped with one second circular hole, and the multistage magnet steel is installed on
In second circular hole.
5. servo wheel hub motor as claimed in claim 4, it is characterised in that：The bushing is made of copper, aluminium or plastics.
6. servo wheel hub motor as described in claim 1, it is characterised in that：The rotor assembly includes wheel hub and rotor
Magnet steel, the rotor magnetic steel are set on the wheel hub inner peripheral surface, and the stator module is set on the inside of the rotor magnetic steel, after described
End cap and drive end bearing bracket are individually fixed at the rear end face and front end face of the wheel hub.
7. servo wheel hub motor as claimed in claim 6, it is characterised in that：One is equipped on the hub periphery face to exempt to inflate
Tire.
8. servo wheel hub motor as described in claim 1, it is characterised in that：The stator module include stator core, on
Bearing, lower bearing and shaft core, the stator core are set in rotor assembly, are formed on the stator core peripheral surface multiple equal
The stator salient poles of even distribution are each wound with coil in the stator salient poles, and the shaft core sequentially passes through upper bearing (metal), stator iron
Core, lower bearing and drive end bearing bracket, and the upper bearing (metal) is fixed in the shaft core, the shaft core rear end is fixed with one for installing
The mounting disc of the magnetoelectric transducer, and the shaft core side offers one and axial is penetrated for the signal wire on magnetoelectric transducer
Wire lead slot, opposite side offer a fairlead worn for output signal line.
9. servo wheel hub motor as described in claim 1, it is characterised in that：The rear end cap and drive end bearing bracket are fixed by screw
It is installed on the two end faces of the rotor assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810099024.5A CN108199538B (en) | 2018-01-31 | 2018-01-31 | Servo hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810099024.5A CN108199538B (en) | 2018-01-31 | 2018-01-31 | Servo hub motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108199538A true CN108199538A (en) | 2018-06-22 |
| CN108199538B CN108199538B (en) | 2024-07-23 |
Family
ID=62592205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810099024.5A Active CN108199538B (en) | 2018-01-31 | 2018-01-31 | Servo hub motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108199538B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224541A (en) * | 2019-06-21 | 2019-09-10 | 苏州盛亿电机有限公司 | Using the mobile platform hub motor of inductance encoder |
| CN110474508A (en) * | 2019-09-19 | 2019-11-19 | 深圳中菱科技有限公司 | A kind of novel external rotor motor |
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| US20170227831A1 (en) * | 2016-02-04 | 2017-08-10 | ZEROTECH (Chongqing) Intelligence Technology Co., Ltd. | Motor and gimbal having the same |
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| CN110474508B (en) * | 2019-09-19 | 2024-04-02 | 深圳中菱科技有限公司 | Outer rotor motor |
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Effective date of registration: 20200211 Address after: 518000 Guangtian green decoration industrial base Park, building 2, No. 86 Xiangyang Road, Yanchuan community, Yanluo street, Bao'an District, Shenzhen City, Guangdong Province Applicant after: Dongxingchang Technology (Shenzhen) Co.,Ltd. Address before: 518000, Shenzhen, Guangdong, Baoan District manhole street, Whampoa community, hung Tian Road, hung Tian, Jin Yuan Industrial Zone, building D, A24 third Applicant before: DONGCHANG MOTOR (SHENZHEN) Co.,Ltd. |
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