CN212935595U - Self-cooling hub motor - Google Patents
Self-cooling hub motor Download PDFInfo
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- CN212935595U CN212935595U CN202021449482.6U CN202021449482U CN212935595U CN 212935595 U CN212935595 U CN 212935595U CN 202021449482 U CN202021449482 U CN 202021449482U CN 212935595 U CN212935595 U CN 212935595U
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Abstract
The utility model discloses a self-cooling in-wheel motor, it includes external rotor, motor shaft, stator and driver PCB board, and the external rotor includes shell, permanent magnet and fan blade, and the shell can coaxial fixed mounting in the inner circle of wheel hub, and the shell is inside to enclose into the confined installation cavity, and a plurality of permanent magnets evenly paste along the circumference of shell and locate the circumference inside wall of shell, and a plurality of fan blades evenly set up in the inside wall of shell around the center pin of shell; the motor shaft penetrates through the outer rotor along the central shaft of the outer rotor, the outer rotor is rotatably supported on the motor shaft through the shell, and a liquid cooling channel is axially arranged inside the motor shaft; the stator is coaxially sleeved and fixedly arranged on the motor shaft and is arranged in the mounting cavity corresponding to the permanent magnet, a cooling channel is arranged in the stator and is communicated with a liquid cooling channel of the motor shaft; the driver PCB is arranged in the mounting cavity and fixedly connected with the motor shaft, and the driver PCB is used for variable frequency driving of the self-cooling hub motor.
Description
Technical Field
The utility model belongs to the technical field of in-wheel motor, especially, relate to a self-cooling in-wheel motor.
Background
At present, various new technologies applied to electric vehicles are diversified, and the hub motor is highly valued in the industry due to its obvious technical advantages in structural arrangement and active control. The hub motor directly integrates a driving motor inside the wheel to be used as a main power component for the rotation of the wheel. The stator coil etc. can produce a large amount of heats in the in-wheel motor operation, because the wheel inner space is limited, can not dispel the heat well, consequently need with different cooling methods application in order to reach radiating purpose on the in-wheel motor. Meanwhile, the hub motor is close to the ground during working and possibly wades into water even, the working environment is severe, and in order to prevent the damage caused by sand impact and water inflow of the hub motor in the running process of a vehicle, the sealing performance and the electromagnetic property of the hub motor need to be guaranteed while heat dissipation is achieved, so that the hub motor can work stably and reliably.
The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims at providing a from cooling in-wheel motor, it is sealed effectual, cooling radiating efficiency is high, guarantees leakproofness and electromagnetic characteristic when promoting the motor heat dispersion, has prolonged from cooling in-wheel motor's life, and the practicality is strong, is fit for popularizing and applying.
In order to achieve the purpose, the utility model provides a self-cooling in-wheel motor, its characterized in that, self-cooling in-wheel motor includes the external rotor, the external rotor includes shell, permanent magnet and fan blade, the shell can coaxial fixed mounting in the inner circle of wheel hub, the shell is inside to enclose into confined installation cavity, a plurality of the permanent magnet evenly pastes along the circumference of shell and locates the circumference inside wall of shell, a plurality of the fan blade evenly sets up in the inside wall of shell around the center pin of shell, the shell rotates and can drive the fan blade rotates, in order to drive the air flow in the installation cavity; the motor shaft penetrates through the outer rotor along the central shaft of the outer rotor, the outer rotor is rotatably supported on the motor shaft through the shell, and a liquid cooling channel is axially arranged inside the motor shaft; the stator is coaxially sleeved and fixedly arranged on the motor shaft and is arranged in the mounting cavity corresponding to the permanent magnet, a cooling channel is arranged in the stator and is communicated with the liquid cooling channel of the motor shaft; and the driver PCB is arranged in the mounting cavity and fixedly connected with the motor shaft, and is used for variable frequency driving of the self-cooling hub motor. .
In one example, the root of the fan blade is provided with a vent, and the stator is provided with a ventilation channel which is axially communicated, so that an air circulation flow channel which sequentially passes through a gap between the permanent magnet and the stator, the vent, a gap between the end of the fan blade and the motor shaft and the ventilation channel is formed in the mounting cavity.
In one example, one end of the motor shaft extends into the mounting cavity, the other end of the motor shaft extends out of the outer rotor, and the extending end of the motor shaft is provided with a cooling liquid inlet and a cooling liquid outlet which are communicated with the liquid cooling channel.
In one example, the middle part of the motor shaft is located in the mounting cavity, two ends of the motor shaft extend out of the outer rotor, one end of the motor shaft is provided with a cooling liquid inlet communicated with the liquid cooling channel, and the other end of the motor shaft is provided with a cooling liquid outlet communicated with the liquid cooling channel.
In one example, the self-cooling hub motor further comprises a bearing, the housing comprises a cylinder body with at least one open end and an end cover for closing the open end, the cylinder body and the end cover enclose the installation cavity, a shaft hole is formed in the center of the end cover, a bearing groove is formed in the inner side of the end cover and surrounds the shaft hole, the bearing is installed in the bearing groove, and the motor shaft penetrates through the shaft hole to be connected with the bearing so as to rotatably support the housing; and a dynamic sealing structure is also arranged between the shaft hole of the end cover and the motor shaft.
In one example, the driver PCB is sleeved on the motor shaft, and the driver PCB and the stator are respectively located at two sides of the fan blade along the axial direction of the motor shaft; a wire feeding hole is further formed in the motor shaft.
Through the utility model provides a from cooling in-wheel motor can bring following beneficial effect:
1. the driver PCB is integrated in the mounting cavity, so that the driver PCB and the motor are integrally arranged, and a self-cooling hub motor does not need to be additionally connected with a frequency converter when in use, so that the self-cooling hub motor is convenient to operate by customers, saves the mounting space and reduces the volume; through arranging the cooling channel and the liquid cooling channel which are communicated in the motor shaft and the stator, cooling liquid can enter the cooling channel through the liquid cooling channel, so that the stator is cooled and radiated, the stator is good in radiating effect, high in cooling efficiency, not easy to demagnetize, and stable and reliable in work; by arranging the fan blades, air convection can be generated in the mounting cavity when the self-cooling hub motor works, so that heat exchange in the mounting cavity is accelerated, the temperature in the mounting cavity is uniformly distributed, the cooling and heat dissipation efficiency is higher, the cooling and heat dissipation effect is better, and the working performance of the self-cooling hub motor is favorably improved; through enclosing into confined installation cavity inside the shell, can prevent debris such as grit and water from getting into the installation cavity, protect self-cooling in-wheel motor's inner structure not damaged, sealed protectiveness is good, guarantees self-cooling in-wheel motor's reliable and stable work, guarantees leakproofness and electromagnetic characteristic when promoting motor heat dispersion, prolongs self-cooling in-wheel motor's life, and the practicality is strong, is fit for popularizing and applying.
2. Through the air circulation flow channel, the outer rotor rotates to drive the fan blades to rotate, the air in the installation cavity can be stirred and uniformly mixed by generating the circulating air flow, the temperature in the installation cavity is uniformly distributed, the heat dissipation and cooling effects are good, the cooling efficiency is high, the stable and reliable work of the self-cooling hub motor is further ensured, the working performance and the service life of the self-cooling hub motor are favorably improved, the practicability is high, and the air circulation flow channel is suitable for popularization and application.
3. The cooling liquid can enter the liquid cooling channel through the cooling liquid inlet, then flow into the cooling channel and finally flow out from the cooling liquid outlet, so that the heat generated by the motor shaft and the stator is taken out through the cooling liquid, the cooling and heat dissipation of the stator and the motor shaft are realized, the cooling and heat dissipation effects are good, the stable and reliable work of the self-cooling hub motor is ensured, and the working performance of the self-cooling hub motor is improved; through set up coolant liquid entry and coolant liquid export with the end at the motor shaft, the other end of motor shaft need not to stretch out the shell, and dust debris etc. are difficult for getting into the installation intracavity through the clearance between motor shaft and the shell, have guaranteed self-cooling in-wheel motor's leakproofness, effectively protect stator, external rotor and driver PCB board, and the protecting effect is good, reduces the fault rate, prolongs self-cooling in-wheel motor's life, and the practicality is strong, is fit for popularizing and applying.
4. Through locating driver PCB board and stator respectively fan blade both sides, make driver PCB board and stator separately the interval set up in the installation intracavity, can prevent that driver PCB board from interfering the rotation of external rotor, and reduce the electromagnetic interference to driver PCB board, the high temperature transmission that reduces the stator and produce gives driver PCB board, self-cooling in-wheel motor job stabilization is reliable, and set up the line hole in the motor shaft, pencil such as self-cooling in-wheel motor's power cord can be connected with stator and driver PCB board through going into the installation intracavity in the line hole introduction, it is reliable and stable to connect, prevent that the pencil from interfering the external rotor and rotating, the pencil is not fragile, long service life is longer, and the pencil is walked the line simple and convenient, high assembly efficiency, whole outward appearance is pleasing.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
fig. 1 is a schematic structural diagram of a self-cooling in-wheel motor according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a self-cooling in-wheel motor according to another embodiment of the present invention.
In the figure, 1-outer rotor, 11-outer shell, 111-end cover, 12-permanent magnet, 13-fan blade, 131-ventilation opening, 14-installation cavity, 2-motor shaft, 21-liquid cooling channel, 22-cooling liquid inlet, 23-cooling liquid outlet, 24-wiring hole, 3-stator, 31-cooling channel, 32-ventilation channel, 4-driver PCB board, 5-bearing and 100-self-cooling hub motor
Detailed Description
In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the terms "an aspect," "some aspects," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.
As shown in fig. 1-2, an embodiment of the present invention provides a self-cooling in-wheel motor 100, which includes an outer rotor 1, a motor shaft 2, a stator 3 and a driver PCB 4, the outer rotor 1 includes a housing 11, permanent magnets 12 and fan blades 13, the housing 11 can be coaxially and fixedly mounted on an inner ring of a wheel hub, the housing 11 encloses a closed mounting cavity 14, the permanent magnets 12 are uniformly attached to a circumferential inner side wall of the housing 11 along a circumferential direction of the housing 11, the fan blades 13 are uniformly disposed on the inner side wall of the housing 11 around a central axis of the housing 11, the housing 11 can drive the fan blades 13 to rotate to drive air in the mounting cavity 14 to flow; the motor shaft 2 penetrates through the outer rotor 1 along the central axis of the outer rotor 1, the outer rotor 1 is rotatably supported on the motor shaft 2 through the shell 11, and a liquid cooling channel 21 is axially arranged inside the motor shaft 2; the stator 3 is coaxially sleeved and fixedly installed on the motor shaft 2 and is arranged in the installation cavity 14 corresponding to the permanent magnet 12, a cooling channel 31 is arranged in the stator 3, and the cooling channel 31 is communicated with the liquid cooling channel 21 of the motor shaft 2; the driver PCB 4 is arranged in the mounting cavity 14 and fixedly connected with the motor shaft 2, and the driver PCB 4 is used for frequency conversion driving of the self-cooling in-wheel motor 100. The driver PCB 4 is integrated in the mounting cavity 14, so that the driver PCB 4 and the motor are integrally arranged, and a frequency converter is not required to be additionally connected when the self-cooling hub motor 100 is used, so that the operation of a customer is convenient, the mounting space is saved, and the volume is reduced; through arranging the cooling channel 31 and the liquid cooling channel 21 which are communicated with each other in the motor shaft 2 and the stator 3, the cooling liquid can enter the cooling channel 31 through the liquid cooling channel 21, and then the stator 3 is cooled and radiated, so that the stator 3 has good radiating effect, high cooling efficiency, difficult demagnetization and stable and reliable work; by arranging the fan blades 13, air convection can be generated in the mounting cavity 14 when the self-cooling hub motor 100 works, heat exchange in the mounting cavity 14 is accelerated, the temperature in the mounting cavity 14 is uniformly distributed, the cooling and heat dissipation efficiency is higher, the cooling and heat dissipation effect is better, and the working performance of the self-cooling hub motor 100 is favorably improved; through enclosing into confined installation cavity 14 inside at shell 11, can prevent debris such as grit and water from getting into in installation cavity 14, protect self-cooling in-wheel motor 100's inner structure not damaged, sealed protection nature is good, guarantees self-cooling in-wheel motor 100's reliable and stable work, guarantees leakproofness and electromagnetic characteristic when promoting motor heat dispersion, prolongs self-cooling in-wheel motor 100's life, and the practicality is strong, is fit for popularizing and applying.
Specifically, the root of the fan blade 13 is provided with a vent 131, the stator 3 is provided with a ventilation channel 32 which is axially through, and thus an air circulation flow channel which sequentially passes through a gap between the permanent magnet 12 and the stator 3, the vent 131, a gap between the end of the fan blade 13 and the motor shaft 2, and the ventilation channel 32 is formed in the mounting cavity 14. Through the air circulation flow channel, the outer rotor 1 rotates to drive the fan blades 13 to rotate, so that circulation air flow can be generated, air in the mounting cavity 14 is stirred and uniformly mixed, the temperature in the mounting cavity 14 is uniformly distributed, the heat dissipation and cooling effects are good, the cooling efficiency is high, stable and reliable work of the self-cooling hub motor 100 is further guaranteed, the working performance and the service life of the self-cooling hub motor 100 are favorably improved, the practicability is high, and the air circulation flow channel is suitable for popularization and application.
Specifically, in one embodiment, as shown in fig. 1, one end of the motor shaft 2 extends into the mounting cavity 14, and the other end extends out of the outer rotor 1, and the extended end of the motor shaft 2 is provided with a cooling liquid inlet 22 and a cooling liquid outlet 23 which are communicated with the liquid cooling passage 21. The cooling liquid can enter the liquid cooling channel 21 through the cooling liquid inlet 22, then flow into the cooling channel 31, and finally flow out from the cooling liquid outlet 23, so that the heat generated by the motor shaft 2 and the stator 3 is taken out through the cooling liquid, the cooling and heat dissipation of the stator 3 and the motor shaft 2 are realized, the cooling and heat dissipation effect is good, the stable and reliable work of the self-cooling hub motor 100 is ensured, and the working performance of the self-cooling hub motor 100 is improved; through setting up coolant liquid entry 22 and coolant liquid outlet 23 with one end at motor shaft 2, motor shaft 2's the other end need not to stretch out shell 11, dust debris etc. are difficult for getting into installation cavity 14 through the clearance between motor shaft 2 and the shell 11 in, the leakproofness of self-cooling in-wheel motor 100 has been guaranteed, effectively protect stator 3, external rotor 1 and driver PCB board 4, the protecting effect is good, reduce the fault rate, prolong self-cooling in-wheel motor 100's life, therefore, the clothes hanger is strong in practicability, and is suitable for popularization and application.
In another embodiment, as shown in fig. 2, the middle of the motor shaft 2 is located in the mounting cavity 14, and both ends of the motor shaft 2 extend out of the outer rotor 1, one end of the motor shaft 2 is provided with a cooling liquid inlet 22 communicated with the liquid cooling channel 21, and the other end is provided with a cooling liquid outlet 23 communicated with the liquid cooling channel 21. Through set up coolant liquid entry 22 and coolant liquid outlet 23 respectively at motor shaft 2 both ends, be favorable to reducing the trompil area in motor shaft 2's the cross section, guarantee motor shaft 2's use strength, motor shaft 2 is difficult for the fracture damage, guarantees from cooling in-wheel motor 100's reliable and stable operation, and motor shaft 2's life is longer, and then prolongs from cooling in-wheel motor 100's life, and the practicality is strong, is fit for popularizing and applying.
Specifically, as shown in fig. 1 and fig. 2, the self-cooling in-wheel motor 100 further includes a bearing 5, the housing 11 includes a cylinder with at least one open end and an end cover 111 with a closed open end, the cylinder and the end cover 111 enclose a mounting cavity 14, a shaft hole is formed in the center of the end cover 111, a bearing groove is formed around the shaft hole inside the end cover 111, the bearing 5 is mounted in the bearing groove, and the motor shaft 2 passes through the shaft hole and is connected to the bearing 5 to rotatably support the housing 11; and a dynamic sealing structure is also arranged between the shaft hole of the end cover 111 and the motor shaft 2. The motor shaft 2 is rotatably supported on the end cover 111 through the bearing 5, so that the rotating friction force between the motor shaft 2 and the outer rotor 1 is effectively reduced, the abrasion and the rotating heat of the motor shaft 2 are reduced, the rotating speed of the outer rotor 1 is favorably improved, and the self-cooling hub motor 100 is higher in working performance and longer in service life; set up dynamic seal structure between end cover 111 shaft hole and the motor shaft 2, play the sealed effect to the clearance between motor shaft 2 and the end cover 111, guarantee leakproofness and electromagnetic characteristic when promoting the motor heat dispersion, prevent that dust debris etc. from getting into the installation cavity 14 through the clearance between motor shaft 2 and the end cover 111 in, improve self-cooling in-wheel motor 100's protection level, reduce the fault rate, can be more at the dust, operation under the abominable annular such as high temperature, therefore, the clothes hanger is strong in practicability, and is suitable for popularization and application. In one embodiment, the dynamic seal structure may be a labyrinth seal, and lubricating oil is injected into the seal labyrinth.
Specifically, the driver PCB 4 is sleeved on the motor shaft 2, and the driver PCB 4 and the stator 3 are respectively located at two sides of the fan blade 13 along the axial direction of the motor shaft 2; a wiring hole 24 is also arranged in the motor shaft 2. Through locating driver PCB board 4 and stator 3 respectively in fan blade 13 both sides, make driver PCB board 4 and stator 3 separately set up in installation cavity 14 at the interval, can prevent that driver PCB board 4 from interfering the rotation of external rotor 1, and reduce the electromagnetic interference to driver PCB board, the high temperature transmission that reduces stator 3 and produce gives driver PCB board 4, self-cooling in-wheel motor 100 job stabilization is reliable, and set up in motor shaft 2 and walk line hole 24, pencil such as power cord of self-cooling in-wheel motor 100 can be led into installation cavity 14 through walking line hole 24 and be connected with stator 3 and driver PCB board 4, it is reliable and stable to connect, prevent that the pencil from interfering external rotor 1 and rotating, the pencil, service life is longer, and the pencil is walked the line simple and convenient, high assembly efficiency, whole outward appearance is pleasing to the eye, therefore, the clothes hanger.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. A self-cooling in-wheel motor, characterized in that, the self-cooling in-wheel motor includes:
the outer rotor comprises a shell, permanent magnets and fan blades, the shell can be coaxially and fixedly mounted on an inner ring of a hub, a closed mounting cavity is enclosed inside the shell, the permanent magnets are uniformly attached to the circumferential inner side wall of the shell along the circumferential direction of the shell, the fan blades are uniformly arranged on the inner side wall of the shell around the central shaft of the shell, and the rotation of the shell can drive the fan blades to rotate so as to drive air in the mounting cavity to flow;
the motor shaft penetrates through the outer rotor along the central shaft of the outer rotor, the outer rotor is rotatably supported on the motor shaft through the shell, and a liquid cooling channel is axially arranged inside the motor shaft;
the stator is coaxially sleeved and fixedly arranged on the motor shaft and is arranged in the mounting cavity corresponding to the permanent magnet, a cooling channel is arranged in the stator and is communicated with the liquid cooling channel of the motor shaft; and
the driver PCB is arranged in the mounting cavity and fixedly connected with the motor shaft, and the driver PCB is used for variable frequency driving of the self-cooling hub motor.
2. A self-cooling in-wheel motor as claimed in claim 1, wherein said fan blade has a ventilation opening at its root, and said stator has a ventilation channel extending axially therethrough, so as to form an air circulation flow channel in said mounting cavity sequentially passing through a gap between said permanent magnet and said stator, said ventilation opening, a gap between said fan blade end and said motor shaft, and said ventilation channel.
3. A self-cooling in-wheel motor as claimed in claim 1, wherein said motor shaft extends into said mounting cavity at one end and extends out of said outer rotor at the other end, and said extending end of said motor shaft is provided with a cooling fluid inlet and a cooling fluid outlet which are communicated with said fluid cooling channel.
4. A self-cooling in-wheel motor as claimed in claim 1, wherein said motor shaft has a central portion located in said mounting cavity and two ends extending out of said outer rotor, and said motor shaft has a cooling fluid inlet at one end communicating with said fluid cooling channel and a cooling fluid outlet at the other end communicating with said fluid cooling channel.
5. A self-cooling in-wheel motor as claimed in claim 1, wherein said self-cooling in-wheel motor further comprises a bearing, said housing comprises a cylinder with at least one open end and an end cover closing said open end, said cylinder and said end cover define said mounting cavity, said end cover has a central shaft hole, a bearing groove is disposed around said shaft hole inside said end cover, said bearing is mounted in said bearing groove, and said motor shaft passes through said shaft hole and is connected to said bearing for rotatably supporting said housing;
and a dynamic sealing structure is also arranged between the shaft hole of the end cover and the motor shaft.
6. A self-cooling in-wheel motor as claimed in claim 1, wherein said driver PCB is mounted on said motor shaft in a sleeved manner, and said driver PCB and said stator are located on both sides of said fan blade along the axial direction of said motor shaft; a wire feeding hole is further formed in the motor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021449482.6U CN212935595U (en) | 2020-07-21 | 2020-07-21 | Self-cooling hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021449482.6U CN212935595U (en) | 2020-07-21 | 2020-07-21 | Self-cooling hub motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212935595U true CN212935595U (en) | 2021-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021449482.6U Active CN212935595U (en) | 2020-07-21 | 2020-07-21 | Self-cooling hub motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212935595U (en) |
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2020
- 2020-07-21 CN CN202021449482.6U patent/CN212935595U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 4th Floor, Building No. 1-1, No. 82 Beijing East Road, Taicang City, Suzhou City, Jiangsu Province 215400 Patentee after: Moandi (Suzhou) Motor Technology Co.,Ltd. Address before: 215400 4th floor, building 8, 165 Dongting Road, Taicang City, Suzhou City, Jiangsu Province Patentee before: DIBAISHI MOTOR TECHNOLOGY (SUZHOU) CO.,LTD. |
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| CP03 | Change of name, title or address |