CN108608847A - A kind of drive system of electric motor vehicle - Google Patents
A kind of drive system of electric motor vehicle Download PDFInfo
- Publication number
- CN108608847A CN108608847A CN201810603398.6A CN201810603398A CN108608847A CN 108608847 A CN108608847 A CN 108608847A CN 201810603398 A CN201810603398 A CN 201810603398A CN 108608847 A CN108608847 A CN 108608847A
- Authority
- CN
- China
- Prior art keywords
- connect
- chassis
- connecting shaft
- steering
- flexible connection
- 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.)
- Withdrawn
Links
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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
- B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
- B62D11/04—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
Abstract
The present invention provides a kind of drive system of electric motor vehicle applied to technical field of new energy,One flexible connection block (2) of installation on the left of the chassis (1) of the drive system of electric motor vehicle,Another flexible connection block (2) of installation on the right side of chassis (1),Each flexible connection block (2) one end is fixedly connected with a connecting shaft (3),Each connecting shaft (3) is fixedly connected with chassis (1) side respectively,Each flexible connection block (2) other end installs a driving motor (4) respectively,The shaft of each driving motor (4) is connect with a driving wheel (5),Each driving motor (4) is connect with control unit (8) respectively,Steering motor (23) is connect with control unit (8),Drive system of electric motor vehicle of the present invention,It is simple in structure,Reliably realizing driving function simultaneously,It can transfer to be changed to small machine to directly drive,Simplify structure,Reduce cost.
Description
Technical field
The invention belongs to technical field of new energy, are to be related to a kind of drive system of electric motor vehicle more specifically.
Background technology
Existing New-energy electric vehicle field, electric vehicle are typically necessary setting motor and (or also set up hair simultaneously
Motivation) it is used as driving part, and after driving part setting, it is necessary to transmission system is set, so as to cause complete vehicle structure complexity, cloth
Difficulty is set, while electric vehicle cost being caused to increase, influences the market competitiveness.
Invention content
The technical problem to be solved by the present invention is to：In view of the deficiencies of the prior art, it is simple in structure to provide one kind, reliable
While realizing driving function, integrated motor can be cancelled, cancel power-transmission system, then be changed to small machine and directly drive,
It is final to simplify overall structure, reduce the drive system of electric motor vehicle of cost.
Solve the problems, such as that techniques discussed above, the technical solution that the present invention takes are：
The present invention is a kind of drive system of electric motor vehicle, and the drive system of electric motor vehicle includes vehicle body, and vehicle body connects with chassis
It connects, one flexible connection block of installation on the left of the chassis, another flexible connection block of installation on the right side of chassis, on the left of chassis and bottom
One driven wheel is also installed respectively, each block one end that is flexibly connected is fixedly connected with a connecting shaft, each connecting shaft on the right side of disk
It is fixedly connected respectively with chassis side, each block other end that is flexibly connected installs a driving motor, each driving motor respectively
Shaft connect with a driving wheel, a connecting shaft is connect by steering shaft with steering wheel, another connecting shaft with turn to
Motor connects, and each driving motor is connect with control unit respectively, and steering motor is connect with control unit.
The drive system of electric motor vehicle of the drive system of electric motor vehicle includes left driving part and right driving part, left driving
Component is mounted on the left of chassis, and right drive system is mounted on the right side of chassis, and left driving part includes left flexible connection block, left connection
Axis, left driving motor, left driving wheel, right driving part include right flexible connection block, right connecting shaft, right driving motor, right drive
Motor car wheel.
The left connecting shaft of the left driving part is connect by steering shaft with steering wheel, the right side of the right driving part
Connecting shaft is connect with steering motor, and steering motor is connect with control unit, and gear, alignment gear teeth position are installed in steering shaft
Rotation angle sensor is set, and rotation angle sensor is mounted on sensor stand, and sensor stand is mounted on chassis, is turned
Dynamic angular transducer is connect with control unit.
Described left flexible connection block one end passes on left left connecting shaft with chassis and is flexibly connected, left connecting shaft be set as with
The structure of chassis side parallel arrangement, the left flexible connection block other end install left driving motor, shaft and the left side of left driving motor
Wheel connection, left driving motor is driven to be connect with control unit, left connecting shaft is connect with by steering shaft with steering wheel.
Described right flexible connection block one end is flexibly connected on the right side of chassis by right connecting shaft, and right flexible connection block is another
End installation right driving motor, the shaft of right driving motor are connect with right driving wheel, and right driving motor is connect with control unit.
A recessed mounting groove is respectively set per side side for the chassis, and a vertical cloth is installed in each mounting groove
The connecting shaft set, each block that is flexibly connected are fixedly set in a connecting shaft.
When the steering wheel drives steering shaft to rotate to the left, rotation angle sensor is configured to control unit
The structure of rotation direction signal and rotational angle signal is fed back, rotation angle sensor feeds back rotation direction signal to control unit
And when rotational angle signal, the rotating speed that control unit is configured to control right driving motor is more than the rotating speed of left driving motor
Structure；When the steering wheel drives steering shaft to rotate to the right, rotation angle sensor is configured to anti-to control unit
Present the structure of rotation direction signal and rotational angle signal, rotation angle sensor to control unit feed back rotation direction signal and
When rotational angle signal, control unit be configured to control left driving motor rotating speed be more than right driving motor rotating speed knot
Structure.
Technical solution using the present invention can obtain advantageous effect below：
Drive system of electric motor vehicle of the present invention, when electric vehicle is arranged, could be provided as driving wheel directly with drive
Dynamic motor connection, and driving motor is connect with control unit, realizes start and stop and the rotating speed control of each driving motor, to realize
Power transmits.And the steering of electric vehicle realizes that the rotation to connecting shaft controls by steering wheel, steering shaft, connecting shaft, and connect
Spindle is fixedly connected with block is flexibly connected, to when connecting shaft rotates, drive the driving vehicle wheel rotation on flexible connection block.
And wheel is driven to coordinate with driven wheel, realize the integrated support of electric vehicle and control of advancing.Such structure, it is no longer necessary to be arranged
Monoblock type motor, it is no longer necessary to transmission system be set, to effectively simplify structure, reduce arrangement difficulty, reduce cost, entirely
Face promotes the market competitiveness of electric vehicle.Drive system of electric motor vehicle of the present invention, it is simple in structure, realize driving work(reliable
It can transfer to be changed to small machine to directly drive simultaneously, simplify structure, reduce cost.
Description of the drawings
Brief description is made to the content expressed by each attached drawing of this specification and the label in figure below：
Fig. 1 is the structural schematic diagram of drive system of electric motor vehicle of the present invention；
Attached drawing acceptance of the bid, which is remembered, is respectively：1, chassis；2, it is flexibly connected block；3, connecting shaft；4, driving motor；5, wheel is driven；
8, control unit；9, steering shaft；10, steering wheel；11, left driving part；12, right driving part；13, left flexible connection block；14、
Left connecting shaft；15, left driving motor；16, left driving wheel；17, right flexible connection block；18, right connecting shaft；19, right driving electricity
Machine；20, right driving wheel；23, steering motor；24, gear；25, rotation angle sensor；26, sensor stand；27, it installs
Slot.
Specific implementation mode
Below against attached drawing, by the description of the embodiment, each structure for example involved to the specific implementation mode of the present invention
The works such as mutual alignment and connection relation, the effect of each section and operation principle between the shape of part, construction, each section are further
Detailed description：
As shown in Fig. 1, the present invention is a kind of drive system of electric motor vehicle, and the drive system of electric motor vehicle includes vehicle body,
Vehicle body is connect with chassis 1, and described 1 left side installation of chassis, the one flexible connection block 2, another activity is installed even in 1 right side of chassis
Block 2 is connect, a driven wheel is also installed on 1 left side of chassis and 1 right side of chassis respectively, and each 2 one end of block that is flexibly connected is connect with one
Axis 3 is fixedly connected, and each connecting shaft 3 is fixedly connected with 1 side of chassis respectively, and each 2 other end of block that is flexibly connected is installed respectively
One driving motor 4, the shaft of each driving motor 4 are connect with a driving wheel 5, a connecting shaft 3 by steering shaft 9 with
Steering wheel 10 connects, another connecting shaft 3 is connect with steering motor 23, and each driving motor 4 is connect with control unit 8 respectively,
Steering motor 23 is connect with control unit 8, and each driving motor is connect with accumulator respectively.Above structure, in setting electric vehicle
When, it could be provided as driving wheel and directly connect with driving motor, and driving motor is connect with control unit, realizes each driving
The start and stop of motor and rotating speed control, to realize that power transmits.And the steering of electric vehicle, pass through steering wheel, steering shaft, connection
Axis realizes and controls the rotation of connecting shaft, and connecting shaft and is flexibly connected block and is fixedly connected, thus when connecting shaft rotates, meeting
Drive the driving vehicle wheel rotation on flexible connection block.And drive wheel and driven wheel to coordinate, realize electric vehicle integrated support and
It advances and controls.Such structure, it is no longer necessary to which monoblock type motor is set, it is no longer necessary to which transmission system is set, to effectively simplify
Structure reduces arrangement difficulty, reduces cost, the market competitiveness of General Promotion electric vehicle.
The drive system of electric motor vehicle of the drive system of electric motor vehicle includes left driving part 11 and right driving part 12, a left side
Driving part 11 is mounted on 1 left side of chassis, and right drive system 12 is mounted on 1 right side of chassis, and left driving part 11 includes left activity
Link block 13, left connecting shaft 14, left driving motor 15, left driving wheel 16, right driving part 12 include right flexible connection block 17,
Right connecting shaft 18, right driving motor 19, right driving wheel 20.
The left connecting shaft 14 of the left driving part 11 is connect by steering shaft 9 with steering wheel, the right driving portion
The right connecting shaft 18 of part 12 is connect with steering motor 23, and steering motor 23 is connect with control unit 8, and gear is installed in steering shaft 9
24, rotation angle sensor 25 is arranged in 24 teeth position of alignment gear, and rotation angle sensor 25 is mounted on sensor stand 26
On, sensor stand 26 is mounted on chassis 1, and rotation angle sensor 25 is connect with control unit 8.Above structure, electronic
When vehicle turns to, the induction by rotation angle sensor to gear rotational angle, to control unit feedback signal, control unit is again
The rotational angle that steering motor is controlled according to the rotational angle of gear, to accordingly control the rotational angle of right driving wheel, this
Sample just establishes relevance between left driving wheel and right driving wheel, realizes the reliable control of steering.
Described left 13 one end of flexible connection block passes on left left connecting shaft 14 with chassis 1 and is flexibly connected, left connecting shaft 14
It is set as the structure being arranged in parallel with 1 side of chassis, left 13 other end of flexible connection block installs left driving motor 15, left driving electricity
The shaft of machine 15 is connect with left driving wheel 16, and left driving motor 15 is connect with control unit 8, left connecting shaft 3 and passes through steering
Axis 9 is connect with steering wheel.Described right 17 one end of flexible connection block is flexibly connected with 1 right side of chassis by right connecting shaft 18, right
It is flexibly connected 17 other end of block and right driving motor 19 is installed, the shaft of right driving motor 19 is connect with right driving wheel 20, right drive
Dynamic motor 19 is connect with control unit 8.Above structure, left driving motor and has the rotation of driving motor and start and stop to pass through control
Component controls, and left driving wheel is diverted through steering wheel control, right driving wheel is diverted through steering angle sensor
Control is realized in the signal of feedback, then the rotation of right control unit control steering motor.
A recessed mounting groove 27 is respectively set per side side for the chassis 1, and one is installed in each mounting groove 27
Vertically arranged connecting shaft 3, each block 2 that is flexibly connected are fixedly set in a connecting shaft 3.Above structure, steering shaft are realized
Flexible connection block is reliably connected.And mounting groove realizes limit to flexible connection block, it is ensured that flexible connection slot can only it is horizontal before and after
Rotation, and bearing can be set between mounting groove and flexible connection block, it is living to play the role of Auxiliary support to flexible connection block
Abrasion also can be effectively reduced when dynamic link block rotation.
When the steering wheel 10 drives steering shaft 9 to rotate to the left, rotation angle sensor 25 is configured to control
Component 8 processed feeds back the structure of rotation direction signal and rotational angle signal, and rotation angle sensor 25 turns to the feedback of control unit 8
When dynamic direction signal and rotational angle signal, the rotating speed that control unit 8 is configured to control right driving motor 19 is more than left drive
The structure of the rotating speed of dynamic motor 15；When the steering wheel 10 drives steering shaft 9 to rotate to the right, rotation angle sensor 25 is set
The structure of rotation direction signal and rotational angle signal can be fed back to control unit 8 by being set to, and rotation angle sensor 25 is to control
When component 8 processed feeds back rotation direction signal and rotational angle signal, control unit 8 is configured to control left driving motor 15
Rotating speed is more than the structure of the rotating speed of right driving motor 19.Above structure, because electric vehicle is when turning to, left driving wheel and right drive
Motor car wheel turning distance is different, it is therefore desirable to be made up by two vehicle wheel rotational speed differences, to pass through rotation angle sensor
Signal feedback, realize the stability and automobile reliability of the steering of electric vehicle.
Drive system of electric motor vehicle of the present invention, when electric vehicle is arranged, could be provided as driving wheel directly with drive
Dynamic motor connection, and driving motor is connect with control unit, realizes start and stop and the rotating speed control of each driving motor, to realize
Power transmits.And the steering of electric vehicle realizes that the rotation to connecting shaft controls by steering wheel, steering shaft, connecting shaft, and connect
Spindle is fixedly connected with block is flexibly connected, to when connecting shaft rotates, drive the driving vehicle wheel rotation on flexible connection block.
And wheel is driven to coordinate with driven wheel, realize the integrated support of electric vehicle and control of advancing.Such structure, it is no longer necessary to be arranged
Monoblock type motor, it is no longer necessary to transmission system be set, to effectively simplify structure, reduce arrangement difficulty, reduce cost, entirely
Face promotes the market competitiveness of electric vehicle.Drive system of electric motor vehicle of the present invention, it is simple in structure, realize driving work(reliable
It can transfer to be changed to small machine to directly drive simultaneously, simplify structure, reduce cost.
Illustrative description is carried out to the present invention above in conjunction with attached drawing, it is clear that concrete implementation of the present invention is not by above-mentioned
The limitation of mode, if the various improvement of inventive concept and technical scheme of the present invention progress are used, or it is not improved by this
The design of invention and technical solution directly apply to other occasions, are within the scope of the invention.
Claims (4)
1. a kind of drive system of electric motor vehicle, it is characterised in that：The drive system of electric motor vehicle includes vehicle body, vehicle body and chassis
(1) it connects, one flexible connection block (2) of installation on the left of the chassis (1), another flexible connection of installation on the right side of chassis (1)
Block (2) also installs a driven wheel, is each flexibly connected block (2) one end and one respectively on the left of chassis (1) and on the right side of chassis (1)
A connecting shaft (3) is fixedly connected, and each connecting shaft (3) is fixedly connected with chassis (1) side respectively, is each flexibly connected block (2)
The other end installs a driving motor (4) respectively, and the shaft of each driving motor (4) is connect with a driving wheel (5), one
Connecting shaft (3) is connect by steering shaft (9) with steering wheel (10), another connecting shaft (3) is connect with steering motor (23), each
Driving motor (4) is connect with control unit (8) respectively, and steering motor (23) is connect with control unit (8)；The chassis (1)
A recessed mounting groove (27) is respectively set per side side, a vertically arranged connecting shaft is installed in each mounting groove (27)
(3), each flexible connection block (2) is fixedly set on a connecting shaft (3).
2. drive system of electric motor vehicle according to claim 1, it is characterised in that：The left company of the left driving part (11)
Spindle (14) is connect by steering shaft (9) with steering wheel, right connecting shaft (18) and the steering electricity of the right driving part (12)
Machine (23) connects, and steering motor (23) is connect with control unit (8), and gear (24), alignment gear (24) are installed in steering shaft (9)
Rotation angle sensor (25) is arranged in teeth position, and rotation angle sensor (25) is mounted on sensor stand (26), sensing
Device holder (26) is mounted on chassis (1), and rotation angle sensor (25) is connect with control unit (8).
3. drive system of electric motor vehicle according to claim 1 or 2, it is characterised in that：Left flexible connection block (13) one end with
Chassis (1) passes on left left connecting shaft (14) flexible connection, and left connecting shaft (14) is set as and chassis (1) side parallel arrangement
Structure, left flexible connection block (13) other end installation left driving motor (15), the shaft of left driving motor (15) and left driving vehicle
Take turns (16) connection, left driving motor (15) connect with control unit (8), left connecting shaft (3) with pass through steering shaft (9) and steering wheel
Connection.
4. drive system of electric motor vehicle according to claim 1 or 2, it is characterised in that：Right flexible connection block (17) one end with
It is flexibly connected by right connecting shaft (18) on the right side of chassis (1), right flexible connection block (17) other end installation right driving motor (19),
The shaft of right driving motor (19) is connect with right driving wheel (20), and right driving motor (19) is connect with control unit (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810603398.6A CN108608847A (en) | 2018-06-12 | 2018-06-12 | A kind of drive system of electric motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810603398.6A CN108608847A (en) | 2018-06-12 | 2018-06-12 | A kind of drive system of electric motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108608847A true CN108608847A (en) | 2018-10-02 |
Family
ID=63665084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810603398.6A Withdrawn CN108608847A (en) | 2018-06-12 | 2018-06-12 | A kind of drive system of electric motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108608847A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111152834A (en) * | 2020-01-10 | 2020-05-15 | 大连理工大学 | Electric automobile electronic differential control method based on Ackerman steering correction |
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|---|---|---|---|---|
| EP0004194A1 (en) * | 1978-03-13 | 1979-09-19 | Hybricon, Inc. | Hybrid car with electric and heat engine |
| US5465806A (en) * | 1989-03-31 | 1995-11-14 | Kabushiki Kaisha Shikoku Sogo Kenkyujo | Electric vehicle |
| GB2345895A (en) * | 1999-01-22 | 2000-07-26 | Rover Group | Vehicle steering by differentially driving steerable wheels |
| CN1931649A (en) * | 2005-09-14 | 2007-03-21 | 比亚迪股份有限公司 | String driven vehicle steering system and its control method |
| CN101293534A (en) * | 2007-04-26 | 2008-10-29 | 上海市七宝中学 | Vehicle steering mechanism |
| CN103042883A (en) * | 2013-01-23 | 2013-04-17 | 中国农业大学 | Driving wheel system capable of realizing universal rotation |
| CN202911879U (en) * | 2012-07-20 | 2013-05-01 | 好孩子儿童用品有限公司 | Children electromobile |
| US20160167698A1 (en) * | 2013-07-31 | 2016-06-16 | Ntn Corporation | Steering device and vehicle including the same |
| CN106080755A (en) * | 2016-07-08 | 2016-11-09 | 湖南乐农佳科技集团有限公司 | Steering mechanism of a kind of intelligent machine electronic omnidirectional |
-
2018
- 2018-06-12 CN CN201810603398.6A patent/CN108608847A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0004194A1 (en) * | 1978-03-13 | 1979-09-19 | Hybricon, Inc. | Hybrid car with electric and heat engine |
| US5465806A (en) * | 1989-03-31 | 1995-11-14 | Kabushiki Kaisha Shikoku Sogo Kenkyujo | Electric vehicle |
| GB2345895A (en) * | 1999-01-22 | 2000-07-26 | Rover Group | Vehicle steering by differentially driving steerable wheels |
| CN1931649A (en) * | 2005-09-14 | 2007-03-21 | 比亚迪股份有限公司 | String driven vehicle steering system and its control method |
| CN101293534A (en) * | 2007-04-26 | 2008-10-29 | 上海市七宝中学 | Vehicle steering mechanism |
| CN202911879U (en) * | 2012-07-20 | 2013-05-01 | 好孩子儿童用品有限公司 | Children electromobile |
| CN103042883A (en) * | 2013-01-23 | 2013-04-17 | 中国农业大学 | Driving wheel system capable of realizing universal rotation |
| US20160167698A1 (en) * | 2013-07-31 | 2016-06-16 | Ntn Corporation | Steering device and vehicle including the same |
| CN106080755A (en) * | 2016-07-08 | 2016-11-09 | 湖南乐农佳科技集团有限公司 | Steering mechanism of a kind of intelligent machine electronic omnidirectional |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111152834A (en) * | 2020-01-10 | 2020-05-15 | 大连理工大学 | Electric automobile electronic differential control method based on Ackerman steering correction |
| CN111152834B (en) * | 2020-01-10 | 2021-05-11 | 大连理工大学 | Electric automobile electronic differential control method based on Ackerman steering correction |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191024 Address after: 241009 Foreign Student Building D332, Science Creation Center, Wuhu Economic and Technological Development Zone, Wuhu City, Anhui Province Applicant after: Wuhu Changhong Engineering Technology Co., Ltd. Address before: 241100 Jinyuan Village, Wan Zhen Town, Wuhu County, Wuhu, Anhui (formerly three yuan town government office building) Applicant before: Wuhu ETUDE Electromechanical Technology Co., Ltd. |
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181002 |