CN108173368B - Energy-saving motor for electric vehicle - Google Patents
Energy-saving motor for electric vehicle Download PDFInfo
- Publication number
- CN108173368B CN108173368B CN201810126185.9A CN201810126185A CN108173368B CN 108173368 B CN108173368 B CN 108173368B CN 201810126185 A CN201810126185 A CN 201810126185A CN 108173368 B CN108173368 B CN 108173368B
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- coil
- gear
- starting
- energy
- motor
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- 238000004804 winding Methods 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/30—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed with means to change over to human control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/45—Control or actuating devices therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model provides an energy-saving motor for electric motor car, the motor of electric motor car links to each other with the battery and gives the rear wheel power supply, the stator is wheel hub in the motor, wheel hub periphery winding has a plurality of coils, and adjacent coil forms a plurality of coil groups, and a plurality of coil groups include starting coil at least, and starting coil produces the magnetic field and forms the starting structure that enables electric motor car wheel rotation through the stator that sets up in the motor. The invention designs the starting coil, the starting coil forms a magnetic field by utilizing the minimum power supply coil quantity, the motor rotor rotates in the magnetic field to achieve the energy-saving operation effect, and the power supply quantity is increased by utilizing a gear increasing mode in continuous use, thereby achieving the purpose of reducing the starting current, and realizing the advantages of saving energy, prolonging the service life of a storage battery and the like.
Description
Technical Field
The invention relates to the field of electric vehicles, in particular to an energy-saving motor for an electric vehicle, which utilizes a starting coil to realize motor rotation.
Background
The electric bicycle is an existing electric bicycle or an electric motorcycle. The traditional electric bicycle obtains advancing power through the pedal force of a rider and auxiliary power provided by the motor, so that the electric bicycle cannot cause too great load on the physical strength of the rider, and the rider can also achieve the purpose of body building.
The existing electric vehicle needs large current impact from rest to start to achieve the starting purpose, and heat generated by large current is easy to damage the storage capacity of the storage battery, so that the service life of the storage battery is greatly shortened, and a power transmission circuit or a lead is damaged to different degrees; in addition, the high current for starting can cause excessive consumption of the energy stored in the battery, so that the high current is improved during starting of the electric vehicle, the energy is saved, the service life of the storage battery can be effectively ensured, and the high-voltage electric vehicle is one of important technical problems to be solved by the person skilled in the art.
Disclosure of Invention
The invention discloses an energy-saving motor for an electric vehicle, which utilizes a starting coil to realize the rotation of the motor.
In order to solve the problems, the invention provides a technical scheme of an energy-saving motor for an electric vehicle, wherein a rear wheel of the electric vehicle is a motor, the motor is connected with a storage battery and supplies power to the rear wheel, a plurality of power supply coils are wound on stator core teeth in the motor, adjacent power supply coils form a plurality of coil groups, the plurality of coil groups at least comprise starting coils, the starting coils generate a magnetic field to enable a motor rotor to rotate, and the rotating speed is regulated by a controller to form a whole set of energy-saving operation loop for the electric vehicle.
The electric quantity meter can be started to use electricity, the electric quantity meter can be controlled to be in a gear-shifting energy-saving state according to the condition of the electric quantity meter, and the electric quantity meter can be manually shifted according to the road condition or the load condition, so that the energy is saved and the speed is changed. The coil group is connected with the power supply to output large force when climbing; the serial power supply speed is high when the road is leveled, namely, the eye watch can manually control the optimal energy-saving state so as to achieve the aim of saving energy.
Further preferred is: the coil assembly further comprises a second-gear coil assembly, a third-gear coil assembly, a fourth-gear coil assembly, a fifth-gear coil assembly and a sixth-gear coil assembly, wherein the second-gear coil assembly comprises a starting coil and a gear increasing assembly which are adjacently arranged; the three-gear coil group comprises a starting coil and two gear increasing groups which are adjacently arranged; the four-gear coil group comprises a starting coil and three gear increasing groups; the five-gear coil group comprises a starting coil and four gear increasing groups which are adjacently arranged; the six-gear coil group comprises a starting coil and five gear increasing groups which are adjacently arranged; the gear increasing group is a coil group.
Further preferred is: the starting coil is composed of a plurality of adjacent power supply coils, and the number of the power supply coils in each upshift group is consistent with that of the starting coil.
Further preferred is: the start-up coil comprises three adjacent power supply coils.
Further preferred is: the hub is characterized in that a fixing ring for fixing the coil is arranged on the periphery of the hub, the fixing ring is integrally connected with the hub, the fixing ring is axially provided with a plurality of mounting through holes along the hub, and the power supply coil is mounted in each mounting hole.
Further preferred is: each mounting hole is provided with a coil positioning structure which is matched with the winding and fixing of the power supply coil.
Further preferred is: the electric vehicle further comprises a manual gear regulator, and the manual gear regulator is connected with an electric vehicle engine through an electric controller to form control.
Further preferred is: the electric controller is a box body with an electric control circuit board, and is arranged on the electric vehicle.
Further preferred is: the multi-gear stepless energy-saving device also comprises a multi-gear stepless energy-saving controller which can automatically increase or decrease gears.
Further preferred is: the multi-gear stepless energy saving is a speed change control device which is connected with an engine of the electric vehicle.
Compared with the prior art, the invention has the following advantages:
The invention designs the starting coil, the starting coil forms a magnetic field by utilizing the minimum power supply coil quantity, the motor rotor rotates in the magnetic field to achieve the energy-saving operation effect, and the power supply quantity is increased by utilizing a gear increasing mode in continuous use, thereby achieving the purpose of reducing the starting current, and realizing the advantages of saving energy, prolonging the service life of a storage battery and the like.
Drawings
FIG. 1 is a control block diagram of embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of embodiment 1 and embodiment 2 of the present invention;
Fig. 3 is an enlarged view of the structure of the mounting hole of the structures of embodiment 1 and embodiment 2 of the present invention.
Detailed Description
The following describes the embodiments of the present invention in detail with reference to the drawings.
Example 1:
The technical scheme of the energy-saving motor for the electric vehicle is shown in combination with 2 and 3, the motor of the electric vehicle is connected with a storage battery and supplies power to a rear wheel, a stator in the motor is a hub 1, a plurality of coils 2 are wound around the periphery of the hub, a plurality of adjacent coils form a plurality of coil groups, each coil group at least comprises a starting coil 3, and a starting structure capable of enabling wheels of the electric vehicle to rotate is formed by a magnetic field generated by the starting coil through the stator arranged in the motor.
The coil assembly further comprises a second-gear coil assembly, a third-gear coil assembly, a fourth-gear coil assembly, a fifth-gear coil assembly and a sixth-gear coil assembly, wherein the second-gear coil assembly comprises a starting coil and an increasing-gear assembly which are adjacently arranged; the three-gear coil group comprises a starting coil and two gear increasing groups which are adjacently arranged; the four-gear coil group comprises a starting coil and three gear increasing groups; the five-gear coil group comprises a starting coil and four gear increasing groups which are adjacently arranged; the six-gear coil group comprises a starting coil and five gear increasing groups which are adjacently arranged; the gear increasing group is a coil group.
As shown in fig. 2 and 3, the start coil 3 is formed by a plurality of adjacent power supply coils 2, and the number of the power supply coils 2 in each upshift group is identical to that of the start coil. The start-up coil 3 comprises three adjacent supply coils 2. The specific method is as follows: the number of the power supply coils 2 adjacently arranged in the starting coil 3 is designed according to practical use, and the general range is within 2-5 power supply coils 2, and the starting coil 3 is exemplified by the embodiment comprising three adjacent power supply coils 4.
As shown in fig. 2 and 3, a fixing ring 4 for fixing the coil is disposed around the hub 1, the fixing ring 4 is integrally connected with the hub 1, the fixing ring 4 is axially provided with a plurality of mounting holes 41 along the hub 1, and the power supply coil 2 is mounted in each mounting hole 41. Each of the mounting holes 41 is provided with a coil positioning structure which is wound and fixed in cooperation with the power supply coil 4. The specific method is as follows: the positioning structure of each mounting hole is formed in the positioning groove, the positioning groove comprises a shallow groove 5 and caulking grooves 6, the caulking grooves 6 are formed in the bottom surface of the shallow groove 5 in a plurality of mutually parallel mode, the inner diameter of the opening of each caulking groove 6 is smaller than the inner diameter of the inner cavity of the caulking groove 6, and a structure capable of being closed to mount coils is formed.
As shown in fig. 1, 2 and 3, the electric vehicle further comprises a manual gear regulator, and the manual gear regulator is connected with an electric vehicle engine through an electric controller to form control. The electric controller is a box body with an electric control circuit board, and is arranged on the electric vehicle. The specific method is as follows: the controller is a speed change control device, the speed changer is connected with a gear adjusting suspension rod arranged on the handle, and the control is realized, and the specific scheme of the controller is consistent with that disclosed in the Chinese published patent application publication No. CN 102756668A.
Example 2:
The technical scheme of the energy-saving motor for the electric vehicle is shown in 2 and 3, wherein a front wheel or a rear wheel of the electric vehicle is a generator, the generator is connected with a storage battery and supplies power to the rear wheel or the front wheel, a stator in the generator is a hub 1, a plurality of power supply coils 2 are wound around the periphery of the hub, a plurality of adjacent power supply coils form a plurality of coil groups, each of the plurality of coil groups at least comprises a starting coil 3, a magnetic field generated by the starting coil is cut through a rotor arranged in the generator, and a starting structure capable of providing rotation of wheels of the electric vehicle is formed.
The coil assembly further comprises a second-gear coil assembly, a third-gear coil assembly, a fourth-gear coil assembly, a fifth-gear coil assembly and a sixth-gear coil assembly, wherein the second-gear coil assembly comprises a starting coil and an increasing-gear assembly which are adjacently arranged; the three-gear coil group comprises a starting coil and two gear increasing groups which are adjacently arranged; the four-gear coil group comprises a starting coil and three gear increasing groups; the five-gear coil group comprises a starting coil and four gear increasing groups which are adjacently arranged; the six-gear coil group comprises a starting coil and five gear increasing groups which are adjacently arranged; the gear increasing group is a coil group.
As shown in fig. 2 and 3, the start coil 3 is formed by a plurality of adjacent power supply coils 2, and the number of the power supply coils 2 in each upshift group is identical to that of the start coil. The start-up coil 3 comprises three adjacent supply coils 2. The specific method is as follows: the number of the power supply coils 2 adjacently arranged in the starting coil 3 is designed according to practical use, and the general range is within 2-5 power supply coils 2, and the starting coil 3 is exemplified by the embodiment comprising three adjacent power supply coils 4.
As shown in fig. 2 and 3, a fixing ring 4 for fixing the coil is disposed around the hub 1, the fixing ring 4 is integrally connected with the hub 1, the fixing ring 4 is axially provided with a plurality of mounting holes 41 along the hub 1, and the power supply coil 2 is mounted in each mounting hole 41. Each of the mounting holes 41 is provided with a coil positioning structure which is wound and fixed in cooperation with the power supply coil 4. The specific method is as follows: the positioning structure of each mounting hole is formed in the positioning groove, the positioning groove comprises a shallow groove 5 and caulking grooves 6, the caulking grooves 6 are formed in the bottom surface of the shallow groove 5 in a plurality of mutually parallel mode, the inner diameter of the opening of each caulking groove 6 is smaller than the inner diameter of the inner cavity of the caulking groove 6, and a structure capable of being closed to mount coils is formed.
As shown in fig. 2 and 3, the multi-gear stepless energy-saving device further comprises a multi-gear stepless energy-saving controller capable of automatically increasing and decreasing gears. The multi-gear stepless energy saving is a speed change control device which is connected with an electric vehicle engine, and the specific scheme of the speed change control device is consistent with that disclosed in China published patent application No. CN 102756668A.
While the invention has been described in terms of preferred embodiments, it is not intended to be limiting, but rather, it will be apparent to those skilled in the art that various changes and modifications can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The energy-saving motor for the electric vehicle is characterized in that: the motor of the electric vehicle is connected with the storage battery and supplies power to the rear wheel, a stator in the motor is a hub, a plurality of coils are wound around the periphery of the hub, a plurality of coil groups are formed by adjacent coils, each coil group at least comprises a starting coil, and a magnetic field generated by the starting coil forms a starting structure capable of enabling wheels of the electric vehicle to rotate through the stator arranged in the motor;
the coil assembly further comprises a second-gear coil assembly, a third-gear coil assembly, a fourth-gear coil assembly, a fifth-gear coil assembly and a sixth-gear coil assembly, wherein the second-gear coil assembly comprises a starting coil and a gear increasing assembly which are adjacently arranged; the three-gear coil group comprises a starting coil and two gear increasing groups which are adjacently arranged; the four-gear coil group comprises a starting coil and three gear increasing groups; the five-gear coil group comprises a starting coil and four gear increasing groups which are adjacently arranged; the six-gear coil group comprises a starting coil and five gear increasing groups which are adjacently arranged; the gear increasing group is a coil group;
the starting coil is composed of a plurality of adjacent power supply coils, and the number of the power supply coils in each gear increasing group is consistent with that of the starting coil;
The electric vehicle further comprises a manual gear regulator, and the manual gear regulator is connected with an electric vehicle engine through an electric controller to form control.
2. The energy-saving motor for electric vehicles according to claim 1, wherein: the start-up coil comprises three adjacent power supply coils.
3. The energy-saving motor for electric vehicles according to claim 2, wherein: the hub is characterized in that a fixing ring for fixing the coil is arranged on the periphery of the hub, the fixing ring is integrally connected with the hub, the fixing ring is axially provided with a plurality of mounting through holes along the hub, and the power supply coil is mounted in each mounting hole.
4. The energy-saving motor for electric vehicles according to claim 3, wherein: each mounting hole is provided with a coil positioning structure which is matched with the winding and fixing of the power supply coil.
5. The energy-saving motor for electric vehicles according to claim 1, wherein: the electric controller is a box body with an electric control circuit board, and is arranged on the electric vehicle.
6. The energy-saving motor for electric vehicles according to claim 1, wherein: the multi-gear stepless energy-saving device also comprises a multi-gear stepless energy-saving controller which can automatically increase or decrease gears.
7. The energy-saving motor for electric vehicles according to claim 6, wherein: the multi-gear stepless energy saving is a speed change control device which is connected with an engine of the electric vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810126185.9A CN108173368B (en) | 2018-02-08 | 2018-02-08 | Energy-saving motor for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810126185.9A CN108173368B (en) | 2018-02-08 | 2018-02-08 | Energy-saving motor for electric vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108173368A CN108173368A (en) | 2018-06-15 |
| CN108173368B true CN108173368B (en) | 2024-06-04 |
Family
ID=62513282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810126185.9A Active CN108173368B (en) | 2018-02-08 | 2018-02-08 | Energy-saving motor for electric vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN108173368B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367116A (en) * | 2001-01-24 | 2002-09-04 | 三洋电机株式会社 | Vehicle with auxiliary power |
| CN1808849A (en) * | 2005-12-26 | 2006-07-26 | 徐州市鑫速尔轮毂电机厂 | Tandem disk brushless motor |
| CN1815851A (en) * | 2005-02-01 | 2006-08-09 | 温州市欧华文具用品有限公司 | Motor of electric vehicle |
| CN2922262Y (en) * | 2006-04-26 | 2007-07-11 | 李锡东 | DC electric motor with various rotating speed and torque |
| CN101882838A (en) * | 2010-07-13 | 2010-11-10 | 肖成勇 | Motor component mechanism and energy system operation method thereof |
| CN102005877A (en) * | 2010-09-21 | 2011-04-06 | 深圳创维－Rgb电子有限公司 | Energy-saving hub motor |
| CN102187547A (en) * | 2008-08-15 | 2011-09-14 | 米伦尼尔研究公司 | Regenerative motor and coil |
| CN102723835A (en) * | 2011-03-31 | 2012-10-10 | 比亚迪股份有限公司 | Device with integration of motor and generator and control method thereof |
| CN105515239A (en) * | 2015-12-21 | 2016-04-20 | 施永涛 | Efficient, energy-saving, variable-frequency and adjustable-speed permanent-magnet motor |
| CN105529848A (en) * | 2014-09-28 | 2016-04-27 | 深圳市祥益节能科技有限公司 | Electric vehicle in-wheel motor and electric vehicle wheel |
| CN106787553A (en) * | 2017-04-06 | 2017-05-31 | 大连碧蓝节能环保科技有限公司 | Split pole pole-changing windingses asynchronous motor of outer rotor |
| CN106976391A (en) * | 2017-02-22 | 2017-07-25 | 安徽易威斯新能源科技股份有限公司 | A kind of wheel hub motor for allowing hand over torsion and its torsion switching method |
| CN208128022U (en) * | 2018-02-08 | 2018-11-20 | 福一电气有限公司 | Electronic automobile-used energy-saving motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006191709A (en) * | 2004-12-28 | 2006-07-20 | Denso Corp | Reference position recognition device |
| JP4449861B2 (en) * | 2005-08-29 | 2010-04-14 | 株式会社デンソー | Vehicle generator |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1367116A (en) * | 2001-01-24 | 2002-09-04 | 三洋电机株式会社 | Vehicle with auxiliary power |
| CN1815851A (en) * | 2005-02-01 | 2006-08-09 | 温州市欧华文具用品有限公司 | Motor of electric vehicle |
| CN1808849A (en) * | 2005-12-26 | 2006-07-26 | 徐州市鑫速尔轮毂电机厂 | Tandem disk brushless motor |
| CN2922262Y (en) * | 2006-04-26 | 2007-07-11 | 李锡东 | DC electric motor with various rotating speed and torque |
| CN102187547A (en) * | 2008-08-15 | 2011-09-14 | 米伦尼尔研究公司 | Regenerative motor and coil |
| CN101882838A (en) * | 2010-07-13 | 2010-11-10 | 肖成勇 | Motor component mechanism and energy system operation method thereof |
| CN102005877A (en) * | 2010-09-21 | 2011-04-06 | 深圳创维－Rgb电子有限公司 | Energy-saving hub motor |
| CN102723835A (en) * | 2011-03-31 | 2012-10-10 | 比亚迪股份有限公司 | Device with integration of motor and generator and control method thereof |
| CN105529848A (en) * | 2014-09-28 | 2016-04-27 | 深圳市祥益节能科技有限公司 | Electric vehicle in-wheel motor and electric vehicle wheel |
| CN105515239A (en) * | 2015-12-21 | 2016-04-20 | 施永涛 | Efficient, energy-saving, variable-frequency and adjustable-speed permanent-magnet motor |
| CN106976391A (en) * | 2017-02-22 | 2017-07-25 | 安徽易威斯新能源科技股份有限公司 | A kind of wheel hub motor for allowing hand over torsion and its torsion switching method |
| CN106787553A (en) * | 2017-04-06 | 2017-05-31 | 大连碧蓝节能环保科技有限公司 | Split pole pole-changing windingses asynchronous motor of outer rotor |
| CN208128022U (en) * | 2018-02-08 | 2018-11-20 | 福一电气有限公司 | Electronic automobile-used energy-saving motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108173368A (en) | 2018-06-15 |
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