CN111186288B - Driving structure of driving wheel of electric vehicle - Google Patents
Driving structure of driving wheel of electric vehicle Download PDFInfo
- Publication number
- CN111186288B CN111186288B CN202010131097.5A CN202010131097A CN111186288B CN 111186288 B CN111186288 B CN 111186288B CN 202010131097 A CN202010131097 A CN 202010131097A CN 111186288 B CN111186288 B CN 111186288B
- Authority
- CN
- China
- Prior art keywords
- driving
- sealing
- motor
- planetary
- driving wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 52
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 23
- 238000005461 lubrication Methods 0.000 claims abstract description 18
- 230000006698 induction Effects 0.000 claims abstract description 15
- 239000004519 grease Substances 0.000 claims abstract description 7
- 239000000428 dust Substances 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 10
- 230000001050 lubricating effect Effects 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
- B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0463—Grease lubrication; Drop-feed lubrication
- F16H57/0464—Grease lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0482—Gearings with gears having orbital motion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses a driving structure of a driving wheel of an electric vehicle, which comprises: the driving device comprises a driving motor, a driving induction element for controlling the driving motor, a planetary reducer, a planetary carrier, a connecting frame and a driving wheel; a sealing baffle is arranged outside one end of the motor shell of the driving motor; the planetary reducer and the planetary carrier form a lubrication space together through a connecting structure; a first annular sealing piece which is used for sealing the sealing space to prevent external dust, water, oil dirt and the like from entering the sealing space is arranged on one side of the driving bearing, which is far away from the connecting frame; a sealing component used for sealing the lubrication space to prevent grease from leaking into the motor shell from the lubrication space is arranged between the box body and the motor shell. The driving structure of the driving wheel of the electric vehicle has simple and reliable sealing structure, higher sealing stability and more reliable power output.
Description
Technical Field
The present invention relates to a driving structure of a driving wheel of an electric vehicle.
Background
The driving structure of the driving wheel for driving the small-sized electric vehicle is characterized in that the signal sensing element is arranged in the motor shell, is easily influenced by the internal working environment of the motor, and has poor stability and short service life. Meanwhile, the driving structure adopts a plurality of sealing elements to seal the speed reducer, the connecting frame and the rotating bearing for rotatably supporting the driving wheel respectively, so that the sealing stability is poor and the consumed energy consumption for sealing is relatively large due to excessive sealing structures.
Disclosure of Invention
The invention provides a driving structure of a driving wheel of an electric vehicle, which adopts the following technical scheme:
A driving structure of a driving wheel of an electric vehicle, comprising: the driving device comprises a driving motor, a driving induction element for controlling the driving motor, a planetary reducer, a planetary carrier, a connecting frame and a driving wheel; a sealing baffle plate used for forming an installation space together with the motor shell is arranged outside one end of the motor shell of the driving motor; the sealing baffle is fixed to the motor housing; the driving induction element is installed in the installation space; the planetary reducer is fixed to the other end of the motor shell; the planetary reducer includes: a case formed with an inner gear ring, a sun gear, a first planetary gear set for performing revolution while rotating to drive the sun gear, and a second planetary gear set for being driven by the sun gear to perform revolution while rotating; the rotating shaft of the driving motor passes through the other end of the motor shell and is meshed with the planet gears of the first planet gear group; the planet gears of the first planetary gear set are meshed with the inner gear ring of the box body and are rotationally connected to the sun gear; the planet gears of the second planetary gear set are meshed with the sun gear and the inner gear ring of the box body; the planet carrier is rotationally connected to the inner wall of the box body and connected to the planet wheels of the second planet wheel set; the connecting frame is sleeved at one end of the box body and is fixed to the planet carrier; the driving wheel is sleeved on the periphery of the motor shell and/or the box body and is connected to the connecting frame; a driving bearing is arranged between the driving wheel and the motor shell; the planetary reducer and the planetary carrier form a lubrication space for grease to lubricate the planetary reducer and the planetary carrier together through a connecting structure; a first annular sealing piece is arranged on one side of the driving bearing far away from the connecting frame and is used for sealing a sealing space surrounded by the connecting frame, the driving wheel, the box body, the planet carrier and the motor shell together so as to prevent external dust, water, oil stains and the like from entering the sealing space; a sealing component used for sealing the lubrication space to prevent grease from leaking into the motor shell from the lubrication space is arranged between the box body and the motor shell.
Further, a first annular seal ring is located between the drive wheel and the motor housing.
Further, the rotating shaft of the driving motor extends into the case through the sealing assembly.
Further, a second annular seal member for increasing stability of sealing the installation space is provided in the circumferential direction of the sealing barrier; the second annular seal is disposed between the sealing barrier and the motor housing.
Further, the planet carrier is connected to the planet wheels of the second planetary gear set by axle pins; the planet wheels of the first planetary gear set are connected to the sun wheel by axle pins.
Further, the driving wheel is sleeved at the middle part of the whole formed by connecting the motor shell and the box body.
Further, the rotational axis of the rotational shaft of the drive motor, the rotational axis of the sun gear, the rotational axis of the carrier, and the rotational axis of the drive wheel coincide.
Further, the link frame is inserted into the driving wheel in the circumferential direction of the driving wheel.
The driving structure of the driving wheel of the electric vehicle has the advantages that the driving induction element is arranged outside the motor shell and seals the external driving induction element, so that the stability of the driving induction element is ensured, and the service life of the driving induction element is prolonged. Meanwhile, the planetary reducer and the planetary carrier of the driving structure of the driving wheel of the electric vehicle are positioned in the same lubrication space, and only the lubrication space is sealed by the sealing assembly, so that the sealing structure is simple and reliable, the sealing stability is higher, and the energy consumption is lower. The driving structure of the driving wheel of the electric vehicle uses the planetary reducer to reduce the speed and output the speed through the planetary carrier, so that the power output is more reliable, the shearing force born by the connecting carrier is reduced under the condition of maximizing the number ratio, and the stability of the structure is improved.
Drawings
Fig. 1 is a schematic view of a driving structure of a driving wheel of an electric vehicle of the present invention.
The driving structure 10 of the driving wheel of the electric vehicle, the driving motor 11, the motor housing 111, the driving induction element 12, the planetary reducer 13, the case 131, the sun gear 132, the first planetary gear set 133, the second planetary gear set 134, the planet carrier 14, the connecting frame 15, the driving wheel 16, the installation space 17, the sealing baffle 18, the driving bearing 19, the first annular seal 20, the sealing assembly 21, the second annular seal 22, the shaft pin 23, the lubrication space 24, the rotation axis 25, and the sealing space 26.
Detailed Description
The invention is described in detail below with reference to the drawings and the specific embodiments.
As shown in fig. 1, a driving structure 10 of a driving wheel of an electric vehicle includes: a drive motor 11, a drive induction element 12, a planetary reducer 13, a planet carrier 14, a connecting carrier 15 and a drive wheel 16. The drive sensing element 12 is used for controlling the drive motor 11. The outside of one end of the motor housing 111 of the drive motor 11 is provided with a sealing barrier 18. The sealing baffle 18 is fixed to the motor housing 111, and forms an installation space 17 together with the motor housing 111. The driving sensing element 12 is mounted into the mounting space 17. The driving induction element 12 is arranged outside the motor shell 111 and the driving induction element 12 is sealed, so that the stability of the driving induction element 12 is ensured, and the service life of the driving induction element is prolonged.
Further, the planetary reducer 13 is fixed to the other end of the motor housing 111. The planetary reducer 13 includes: a housing 131, a sun gear 132, a first planetary gear set 133 and a second planetary gear set 134. The case 131 is formed with an inner gear ring. The planetary gears of the first planetary gear set 133 revolve to drive the sun gear 132 while achieving rotation by the combined action of the rotation shaft of the driving motor 11 and the ring gear. The planet gears of the second planetary gear set 134 revolve while rotating under the combined action of the sun gear 132 and the ring gear to drive the planet carrier 14 to rotate around the rotation axis 25 thereof. The planet carrier 14 rotates to drive the connecting carrier 15 to rotate together so as to drive the driving wheel 16 to rotate, thereby realizing the driving of the electric vehicle.
As a specific configuration, the rotation shaft of the drive motor 11 passes through the other end of the motor housing 111 to mesh with the planetary gears of the first planetary gear set 133. The planet gears of the first set of planet gears 133 mesh with the annulus gear of the housing 131 and are rotatably connected to the sun gear 132. The planet gears of the second planetary gear set 134 mesh with the sun gear 132 and the ring gear of the case 131. The planet carrier 14 rotates the planet wheels which are connected to the inner wall of the housing 131 and to the second set of planet wheels 134. The connection frame 15 is sleeved at one end of the case 131 and fixed to the planet carrier 14. The driving wheel 16 is fitted around the outer periphery of the motor housing 111 and connected to the link 15.
In this configuration, the rotation axis 25 of the rotation shaft of the drive motor 11, the rotation axis 25 of the sun gear 132, the rotation axis 25 of the carrier 14, the rotation axis 25 of the link 15, and the rotation axis 25 of the drive wheel 16 overlap. The planet gears of the first planetary gear set 133 and the planet gears of the second planetary gear set 134 are engaged with the ring gear of the housing 131, and the planet carrier 14 is also rotatably connected to the inner wall of the housing 131. The structure has higher installation precision and transmission precision, and effectively improves the reliability of the driving structure. In addition, the driving structure 10 of the driving wheel 16 of the electric vehicle uses the planetary reducer 13 to reduce the speed and output the power through the planetary frame 14, so that the power output is more reliable, the shearing force born by the connecting frame 15 is reduced under the condition of maximizing the number ratio, and the stability of the structure is improved.
Alternatively, the driving wheel 16 may be sleeved on the outer circumference of the case 131 and connected to the connection frame 15, or may be sleeved on the outer circumference of the connection portion between the motor housing 111 and the case 131 and connected to the connection frame 15.
As a further alternative, a drive bearing 19 is provided between the drive wheel 16 and the motor housing 111. The drive bearing 19 is used to rotatably support the drive wheel 16, increasing the stability of the rotational structure between the drive wheel 16 and the motor housing 111. The planetary reducer 13 and the planetary carrier 14 form a lubrication space 24 together through a connecting structure. The lubrication space 24 is used for lubricating the planetary reducer 13 and the planet carrier 14 with grease. The side of the drive bearing 19 remote from the coupling frame 15 is provided with a first annular seal 20. The connecting frame 15, the driving wheel 16, the case 131, the planet carrier 14 and the motor housing 111 together enclose a sealed space 26. The first annular seal 20 is used to seal the sealed space 26 against the ingress of external dust, water, oil dirt, etc. A seal assembly 21 is provided between the case 131 and the motor housing 111. The seal assembly 21 is used to seal the lubrication space 24 to prevent grease from leaking from within the lubrication space 24 into the motor housing 111.
The planetary reducer 13 and the carrier 14 of the driving structure 10 of the driving wheel of the electric vehicle are located in the same lubrication space 24, and therefore only the lubrication space 24 may be sealed by the seal assembly 21. The sealing structure is simple and reliable, the sealing stability is higher, and the energy consumption is lower.
As a specific embodiment, a first annular seal ring is located between the drive wheel 16 and the motor housing 111. The rotation shaft of the driving motor 11 extends into the case 131 through the sealing assembly 21.
As a specific embodiment, the sealing barrier 18 is provided with a second annular seal 22 in the circumferential direction. The second annular seal 22 serves to increase the stability of the sealing of the installation space 17. Specifically, the second annular seal 22 is disposed between the seal barrier 18 and the motor housing 111.
As a specific embodiment, the planet carrier 14 is connected to the planet wheels of the second set of planet wheels 134 by means of axle pins 23. The planet gears of the second planetary gear set 134 are capable of rotating around their own rotation axes relative to the planet carrier 14, and rotate the planet carrier 14 while revolving. The planet wheels of the first set of planet wheels 133 are connected to the sun wheel 132 by means of axle pins 23. The planet gears of the first planetary gear set 133 can rotate around their own rotation axes relative to the sun gear 132, and drive the sun gear 132 to rotate while revolving.
As a specific embodiment, the driving wheel 16 is sleeved on the middle part of the whole formed by connecting the motor housing 111 and the box 131. Therefore, the balance stability of the whole structure can be ensured, and the electric vehicle can stably run.
As a specific embodiment, the link 15 is inserted into the driving wheel 16 in the circumferential direction of the driving wheel 16. Therefore, the synchronism of the connecting frame 15 driving the driving wheel 16 to rotate can be ensured, the torque between the driving wheel 16 and the connecting frame 15 can be uniformly dispersed along the circumferential direction, and the reliability of the driving structure is ensured.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the invention in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the invention.
Claims (3)
1. A driving structure of a driving wheel of an electric vehicle, comprising: the driving device comprises a driving motor, a driving induction element for controlling the driving motor, a planetary reducer, a planetary carrier, a connecting carrier and a driving wheel; a sealing baffle plate used for forming an installation space together with the motor shell is arranged outside one end of the motor shell of the driving motor; the sealing baffle is fixed to the motor housing; the driving induction element is installed in the installation space; the planetary reducer is fixed to the other end of the motor housing; the planetary reducer includes: a case formed with an inner gear ring, a sun gear, a first planetary gear set for performing revolution while rotating to drive the sun gear, and a second planetary gear set for being driven by the sun gear to perform revolution while rotating; the rotating shaft of the driving motor passes through the other end of the motor shell and is meshed with the planet gears of the first planetary gear set; the planet gears of the first planetary gear set are meshed with the inner gear ring of the box body and are rotationally connected to the sun gear; the planet gears of the second planetary gear set are meshed with the sun gear and the inner gear ring of the box body; the planet carrier is rotationally connected to the inner wall of the box body and connected to the planet gears of the second planet gear set; the connecting frame is sleeved at one end of the box body and is fixed to the planet carrier; the driving wheel is sleeved on the periphery of the motor shell and/or the box body and is connected to the connecting frame; a drive bearing is arranged between the drive wheel and the motor shell; the planetary reducer and the planetary carrier form a lubrication space for lubricating the planetary reducer and the planetary carrier through grease together through a connecting structure; a first annular sealing piece is arranged on one side of the driving bearing far away from the connecting frame and used for sealing a sealing space enclosed by the connecting frame, the driving wheel, the box body, the planet carrier and the motor shell together so as to prevent external dust, water and oil dirt from entering the sealing space; a sealing component for sealing the lubrication space to prevent grease from leaking from the lubrication space into the motor housing is arranged between the box body and the motor housing; the first annular seal is located between the drive wheel and the motor housing; the rotating shaft of the driving motor penetrates through the sealing assembly and extends into the box body; a second annular sealing member for increasing stability of sealing the installation space is arranged in the circumferential direction of the sealing baffle plate; the second annular sealing piece is arranged between the sealing baffle plate and the motor shell; the driving wheel is sleeved at the middle part of the whole formed by connecting the motor shell and the box body; the connecting frame is inserted into the driving wheel along the circumferential direction of the driving wheel.
2. The driving structure of a driving wheel of an electric vehicle according to claim 1, characterized in that,
The planet carrier is connected to the planet wheels of the second planetary gear set through shaft pins; the planet wheels of the first planetary gear set are connected to the sun wheel through shaft pins.
3. The driving structure of a driving wheel of an electric vehicle according to claim 1, characterized in that,
The rotation axis of the rotation shaft of the driving motor, the rotation axis of the sun gear, the rotation axis of the planet carrier, the rotation axis of the connecting frame and the rotation axis of the driving wheel are overlapped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010131097.5A CN111186288B (en) | 2020-02-28 | 2020-02-28 | Driving structure of driving wheel of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010131097.5A CN111186288B (en) | 2020-02-28 | 2020-02-28 | Driving structure of driving wheel of electric vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111186288A CN111186288A (en) | 2020-05-22 |
| CN111186288B true CN111186288B (en) | 2024-05-24 |
Family
ID=70702740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010131097.5A Active CN111186288B (en) | 2020-02-28 | 2020-02-28 | Driving structure of driving wheel of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111186288B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008184017A (en) * | 2007-01-30 | 2008-08-14 | Ntn Corp | In-wheel motor drive device |
| CN104696445A (en) * | 2015-03-19 | 2015-06-10 | 黄玲艳 | Wheel reduction gear |
| CN105480083A (en) * | 2014-09-17 | 2016-04-13 | 湖南南车时代电动汽车股份有限公司 | Vehicle driving system |
| CN106849487A (en) * | 2017-04-01 | 2017-06-13 | 江苏超力电器有限公司 | A kind of clutch DC Brushless Motor of band brake |
| CN108443422A (en) * | 2018-05-07 | 2018-08-24 | 北京理工大学 | A kind of wheel motor drive device |
| CN212447099U (en) * | 2020-02-28 | 2021-02-02 | 浙江尤奈特电机有限公司 | Driving structure of driving wheel of electric vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009051002A1 (en) * | 2009-10-28 | 2011-05-05 | Schaeffler Technologies Gmbh & Co. Kg | Drive unit for motor vehicles with an electric motor |
-
2020
- 2020-02-28 CN CN202010131097.5A patent/CN111186288B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008184017A (en) * | 2007-01-30 | 2008-08-14 | Ntn Corp | In-wheel motor drive device |
| CN105480083A (en) * | 2014-09-17 | 2016-04-13 | 湖南南车时代电动汽车股份有限公司 | Vehicle driving system |
| CN104696445A (en) * | 2015-03-19 | 2015-06-10 | 黄玲艳 | Wheel reduction gear |
| CN106849487A (en) * | 2017-04-01 | 2017-06-13 | 江苏超力电器有限公司 | A kind of clutch DC Brushless Motor of band brake |
| CN108443422A (en) * | 2018-05-07 | 2018-08-24 | 北京理工大学 | A kind of wheel motor drive device |
| CN212447099U (en) * | 2020-02-28 | 2021-02-02 | 浙江尤奈特电机有限公司 | Driving structure of driving wheel of electric vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111186288A (en) | 2020-05-22 |
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| CB02 | Change of applicant information |
Country or region after: China Address after: 321300 no.287, Lingshi Road, Chengxi New District, Yongkang City, Jinhua City, Zhejiang Province Applicant after: Zhejiang Unitech Electric Co.,Ltd. Address before: 321300 no.287, Lingshi Road, Chengxi New District, Yongkang City, Jinhua City, Zhejiang Province Applicant before: ZHEJIANG UNITE MOTOR Co.,Ltd. Country or region before: China |
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