CN103587410A - Pure electrical double-engine energy feedback power assembly - Google Patents
Pure electrical double-engine energy feedback power assembly Download PDFInfo
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- CN103587410A CN103587410A CN201210287937.2A CN201210287937A CN103587410A CN 103587410 A CN103587410 A CN 103587410A CN 201210287937 A CN201210287937 A CN 201210287937A CN 103587410 A CN103587410 A CN 103587410A
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- battery pack
- drive motor
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- energy feedback
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- 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
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- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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Abstract
The invention discloses a pure electrical double-engine energy feedback power assembly. The pure electrical double-engine energy feedback power assembly comprises a first storage battery pack, a first driving motor which is connected with the first storage battery pack, a second storage battery pack, a second driving motor which is connected with the second storage battery pack, two one-way clutches which are in transmission connection with output shafts of the first driving motor and the second driving motor and an electromechanical coupling case which is provided with two input ends; the input ends are in transmission connection with output ends of the two one-way clutches; the output end of the electromechanical coupling case is connected with a transmission shaft of an electrical automobile. The driving system can effectively solving the vehicle problem that the power is insufficient under conditions such as starting, overtaking, uphill and trench striding and can switch a power insufficient unit of double motor units during dynamically advancing of a vehicle.
Description
Technical field
The present invention relates to a kind of power system, particularly relate to the two energy feedback power of holding up of a kind of pure electricity and combine.
Background technology
At present, the problem of pure electric vehicle ubiquity under power both domestic and external, therefore cause pure electric automobile run unhappy, run not farly, and then be forced to stagnation of movement, directly have influence on the extensively universal of pure electric automobile, the parent who is also difficult to obtain user looks at.
Summary of the invention
The two energy feedback power of holding up of pure electricity that object of the present invention is just to provide a kind of changeable dynamic mode combines.
For addressing the above problem, the invention provides the two energy feedback power of holding up of a kind of pure electricity and combine, comprising:
The first battery pack;
The first drive motor, is electrically connected to described the first battery pack;
The second battery pack;
The second drive motor, is electrically connected to described the second battery pack;
It is characterized in that, also comprise:
Two free-wheel clutchs, are in transmission connection with the output shaft of described the first drive motor and the second drive motor respectively;
Electromechanical coupling case, is provided with two input ends, is in transmission connection respectively with the mouth of described two free-wheel clutchs; The mouth connecting electric automobile transmission shaft of described electromechanical coupling case.
Preferably, also comprise in-vehicle quick charger, described in-vehicle quick charger connects described the first battery pack and the second battery pack, and described in-vehicle quick charger is existing general vehicle mounted electric charging equipment for automobile.
Preferably, also comprise electrical generator, the input end of the described electrical generator described electronlmobil transmission shaft that is in transmission connection; The mouth of described electrical generator connects described in-vehicle quick charger, and described electrical generator is for being fed back to the outputting power of electronlmobil transmission shaft the input power of electronlmobil.
Preferably, also comprise generator set, described generator set is the ventilation inlet place that is located at described electronlmobil front end that two-shipper assembly is put and superposeed; The mouth of described generator set connects described in-vehicle quick charger, and described generator set utilizes the gentle breeze moment of torsion of horizontal vane to generate electricity.
Preferably, also comprise solar charging device, the mouth of described too Ouyang energy charging unit connects described in-vehicle quick charger.
Preferably, also comprise smart circuit control system, described smart circuit control system comprises:
Signal pickup assembly, comprises the first sensor and the second sensor that are provided with safety voltage setting module, is respectively used to detect the output voltage signal of the first drive motor and the second drive motor;
Central control unit, comprises central process unit, the first driving governor, the second driving governor, the first charge controller and the second charge controller; Described central process unit comprises the first driver module, the second driver module, the first charging module and the second charging module; Described first sensor connects described the first driver module and the second charging module by described safety voltage setting module; Described the second sensor connects described the second driver module and the first charging module by described safety voltage setting module;
Driving control device, comprise the first driving control device and the second driving control device, described the first driving governor is connected respectively described the first drive motor and the second drive motor with the second driving governor with the second drive control device controls by described the first driving control device;
Battery charge controller, comprise the first battery charge controller and the second battery charge controller, described the first charge controller is connected respectively described the first battery pack and the second battery pack with the second charge controller with the second battery charge controller by described the first battery charge controller.
Preferably, described the first battery charge controller and the second battery charge controller are equipped with constant-current voltage-stabilizing module.
Preferably, also comprise speed regulation device, described speed regulation device comprises speed governing pedal and for the position transduser of perception speed governing pedal position; Described position transduser communication connects described the first driver module and/or the second driver module; Described the first driver module is connected respectively described the first driving governor and the second driving governor with the second driver module; Described the first driving governor is connected respectively described the first driving control device and the second driving control device with the second driving governor.
Preferably, described the first battery pack and the second battery pack are lead-acid battery or iron lithium phosphate battery.
Adopt the beneficial effect of this technical scheme to be, first, the present invention is by adopting double-motor as the propulsion source of car load, and by free-wheel clutch, double-motor is carried out the switching of light locomotive running pattern or parallel operation operational mode, overcome the starting initial velocity that the low voltage because of drive motor produces low, the problem of moment of torsion deficiency; Second, adopt smart circuit control system automatically to control the light locomotive running pattern of switching mutually between the light locomotive running pattern of double-motor or parallel operation operational mode and two drive motor, the power condition of the double-motor of perception in time, thereby reduced the situation that undue loss appears in battery pack; The 3rd, in dynamically advancing, electronlmobil can switch the unit of Bi-motor set medium power deficiency, the not enough unit of power supply of replacing provides intelligent fast charge by being arranged on the electrical generator of transmission shaft mouth and being installed on generator set and the solar charging device of mouth windward, keep standby switching, thus, switching repeatedly for two drive motor can provide for the vehicle dynamically travelling continual propulsion source, to extend incessantly the work-hours of drive motor group and greatly to improve vehicle course continuation mileage.
Accompanying drawing explanation
Fig. 1 is the two structural representations of holding up energy feedback power combination embodiment 1 of the pure electricity of the present invention;
Fig. 2 is the two structural representations of holding up energy feedback power combination embodiment 2 of the pure electricity of the present invention;
Fig. 3 is the two compositional block diagrams of holding up smart circuit control system in energy feedback power combination embodiment 2 of the pure electricity of the present invention.
Wherein, 1. centrifugal free-wheel clutch 6. electromechanical coupling case 7. electronlmobil transmission shaft 8. in-vehicle quick charger 9. electrical generator 10. generator set 11. solar charging device 12. smart circuit control system 13. speed governing pedals of the first drive motor 2. second drive motor 3. first battery pack 4. second battery pack 5..
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the invention in detail.
Embodiment 1
Referring to Fig. 1, as shown in legend wherein, the two energy feedback power of holding up of a kind of pure electricity combines, and comprising:
One first battery pack 3;
One first drive motor 1, is electrically connected to described the first battery pack 3;
One second battery pack 4;
One second drive motor 2, is electrically connected to described the second battery pack 4;
Two centrifugal free-wheel clutchs 5, are in transmission connection with the output shaft of described the first drive motor 1 and the second drive motor 2 respectively;
One dynamo-electric lotus root mould assembling 6, is provided with two input ends, connects respectively the mouth of described two centrifugal free-wheel clutchs 5; Described dynamo-electric 6 mouth connecting electric automobile transmission shaft 7.
Introduce principle of work of the present invention below.
Described the first battery pack 3 and the second battery pack 4 are respectively to described the first drive motor 1 and the second drive motor 2 power supplies, the power that the first drive motor 1 and the second drive motor 2 produce exports electromechanical coupling change speed gear box 6 to via described two unidirectional centrifugal clutchs 5 respectively, the mode of operation of the driving power that electromechanical coupling case 6 makes car load by the power of described two centrifugal free-wheel clutchs, 5 outputs after over coupling in double-motor parallel connection, can improve the power-handling capability of electronlmobil, when the rotating speed of the first drive motor 1 and the second drive motor 2 is during higher than 300rpm, the automatic combination of two centrifugal free-wheel clutchs 5, during lower than 300rpm, two centrifugal free-wheel clutchs are automatically separated.
Embodiment 2
Referring to Fig. 2, as shown in legend wherein, the two energy feedback power of holding up of a kind of pure electricity combines, and comprising:
One first battery pack 3;
One first drive motor 1, is electrically connected to described the first battery pack 3;
One second battery pack 4;
One second drive motor 2, is electrically connected to described the second battery pack 4;
Two centrifugal free-wheel clutchs 5, are in transmission connection with the output shaft of described the first drive motor 1 and the second drive motor 2 respectively;
One dynamo-electric lotus root mould assembling 6, is provided with two input ends, connects respectively the mouth of described two centrifugal free-wheel clutchs 5; Described dynamo-electric 6 mouth connecting electric automobile transmission shaft 7.
One in-vehicle quick charger 8, described in-vehicle quick charger 8 connects described the first battery pack 3 and the second battery pack 4.
One electrical generator 9, the input end of the described electrical generator 9 described electronlmobil transmission shaft 7 that is in transmission connection; The mouth of described electrical generator 9 connects described in-vehicle quick charger 8.
One generator set 10, the ventilation inlet place that is located at described electronlmobil front end that described generator set 10 is put and superposeed for two-shipper assembly; The mouth of described generator set 10 connects described in-vehicle quick charger 8.
One solar charging device 11, the mouth of described too Ouyang energy charging unit 11 connects described in-vehicle quick charger 8.
One smart circuit control system 12;
One speed regulation device.
Referring to Fig. 3, described smart circuit control system 12 comprises:
One signal pickup assembly, comprises the first sensor and one second sensor that are provided with safety voltage setting module, is respectively used to detect the output voltage signal of the first drive motor 1 and the second drive motor 2;
One central control unit, comprises a central process unit, the first driving governor, the second driving governor, the first charge controller and the second charge controller; Described central process unit comprises one first driver module, one second driver module, one first charging module and one second charging module; Described first sensor connects described the first driver module and the second charging module by described safety voltage setting module; Described the second sensor connects described the second driver module and the first charging module by described safety voltage setting module;
The first driving control device, described the first driving governor connects described the first drive motor by described the first drive control device controls;
The second driving control device, described the second driving governor connects described the second drive motor by described the second drive control device controls;
The first battery charge controller, described the first charge controller connects described the first battery pack by described the first battery charge controller;
The second battery charge controller, described the second charge controller connects described the second battery pack by described the second battery charge controller.
Described the first battery charge controller and the second battery charge controller are equipped with constant-current voltage-stabilizing module.
Described speed regulation device comprises a speed governing pedal 13 and for a position transduser of speed governing pedal 13 positions described in perception; Described position transduser communication connects described the first driver module and/or the second driver module; Described the first driver module is connected respectively described the first driving governor and the second driving governor with the second driver module; Described the first driving governor is connected respectively described the first driving control device and the second driving control device with the second driving governor.
Described the first battery pack 3 and the second battery pack 4 are low voltage (48-60V) lead plumbate maintenance-free battery.
Introduce working process of the present invention below.
After starting vehicle, when chaufeur depresses speed governing pedal 13 and reaches 4/5 stroke, position transduser is passed to the first driver module by signal parallel, with the second driver module, by the control of described smart circuit control system, the first driving control device and the second actuating device are controlled the first drive motor 1 and the second drive motor 2 simultaneously, and then via two unidirectional centrifugal type automatic clutchs 5, export respectively the power of generation the electromechanical coupling change speed gear box 6 of electronlmobil to, the mode of operation of the driving power that the power of output can make car load after over coupling in double-motor parallel connection, first sensor and the second sensor are responded to the driving voltage of the first drive motor 1 and the second drive motor 2 at any time, can improve like this vehicle started to walk in moment, overtake other vehicles, climbing, paddle and get over the power-handling capability in the situations such as ditch, the limit time of double-motor parallel running approximately 2 hours, and should under emergency condition, use as far as possible.
When chaufeur lifts while stepping on speed governing pedal 13, the stroke that now depression degree of speed governing pedal 13 is less than 4/5, position transduser is passed to the first driver module and the second charging module by signal, by the control of described smart circuit control system, the mode of operation that first drive control device controls the first drive motor 1 unit group drives, the second battery charge controller is controlled the second battery pack 4 and is charged, the driving voltage of first sensor perception at any time the first drive motor, the second sensor stops induced signal, now the second drive motor 2 shuts down gradually, and the unidirectional centrifugal type automatic clutch 5 of the second drive motor 2 correspondences is automatically separated, the control system 12 in this dual-motor drive system switches to the first drive motor 1 unit group by type of drive by double-motor operational mode and continues as vehicle driving power is provided, at this moment the vehicle speed of a motor vehicle motoring condition that is in the normal state, it can stream time approximately 2 hours by the first drive motor 1 unit group type of drive, travelled distance is about 150km left and right.
After the first drive motor 1 continuous working, if the first battery pack 3 of the first drive motor 1 correspondence is about to when limit working energy state, now the dump energy of the first battery pack 3 is less than 1/3, first sensor is passed to the second driver module and the first charging module by the signal perceiving by default safety voltage module, now by the control of described smart circuit control system, the mode of operation that second drive control device controls the second drive motor 2 unit groups drive, the first battery charge controller is controlled the first battery pack 3 and is charged, the driving voltage of the second sensor perception at any time the second drive motor, first sensor stops induced signal, to be smart circuit control system 12 automatically switch to the second drive motor 2 unit groups by type of drive continues as vehicle driving power is provided.
Now, the be in transmission connection electrical generator 9 of electronlmobil transmission shaft and generator set 10 and the solar charging device 11 of being located at windward mouthful can charge to the first battery pack 3 of the first drive motor 1 correspondence automatically via in-vehicle quick charger 8, after charging approximately 1 hour, can be full of 80% electric energy, after the sufficient electric weight of such the first storage battery 3, can continue as and switch the second drive motor 2 and standby.In this way, vehicle in dynamically advancing can be that the first battery pack 3 and the second battery pack 4 carry out charging operations thus repeatedly, thereby automatically switch between the first drive motor 1 and the second drive motor 2, thereby failure-free propulsion source can be provided for vehicle is continual, thereby can extend the work-hours of drive motor and greatly improve the ability of the increasing Cheng Xu navigation of pure electric automobile.
This mode can be passed through the dynamic vehicle-mounted charge of pure electric automobile, effectively reduce vehicle and be forced to stagnation of movement because of electrical source of power deficiency, and fill and change electric loaded down with trivial details operation by ground charging station, greatly extend the course continuation mileage of pure electric automobile, broken through the mode of operation of current pure electric automobile simple " battery+motor+charging pile ".
In actual vehicular applications, consider that energy output is less than the factors such as energy consumption (as light, sound equipment, air-conditioning etc.) that energy is inputted and every loss function of onboard system is brought conventionally, need like this ground regularly to charge and supplement institute's power consumption source, but because adopting the storage battery of the little electric current of low voltage, this power-driven system provides power source, visual vehicle (as taxicar, minivan etc.), configuration Vehicular solar cell panel supplements energy input as opto-electronic conversion, thus the storage capacity of the car load energy that reduces due to energy loss that effectively improved balance.
Embodiment 3
All the other are identical with described embodiment 1, and difference is, described the first battery pack 3 and the second battery pack 4 are low voltage (48-60V) iron lithium phosphate battery.
Adopt the beneficial effect of this technical scheme to be, first, the present invention is by adopting double-motor as the propulsion source of car load, and by free-wheel clutch, double-motor is carried out the switching of light locomotive running pattern or parallel operation operational mode, overcome the starting initial velocity that the low voltage because of drive motor produces low, the problem of moment of torsion deficiency; Second, adopt smart circuit control system automatically to control the light locomotive running pattern of switching mutually between the light locomotive running pattern of double-motor or parallel operation operational mode and two drive motor, the power condition of the double-motor of perception in time, thereby reduced the situation that undue loss appears in battery pack; The 3rd, in dynamically advancing, electronlmobil can switch the unit of Bi-motor set medium power deficiency, the not enough unit of power supply of replacing provides intelligent fast charge by being arranged on the electrical generator of transmission shaft mouth and being installed on generator set and the solar charging device of mouth windward, keep standby switching, thus, switching repeatedly for two drive motor can provide for the vehicle dynamically travelling continual propulsion source, to extend incessantly the work-hours of drive motor group and greatly to improve vehicle course continuation mileage.
The above is only the preferred embodiment of the present invention, it should be pointed out that without departing from the concept of the premise of the invention, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (9)
1. the two energy feedback power of holding up of pure electricity combines, and comprising:
The first battery pack;
The first drive motor, is electrically connected to described the first battery pack;
The second battery pack;
The second drive motor, is electrically connected to described the second battery pack;
It is characterized in that, also comprise:
Two free-wheel clutchs, are in transmission connection with the output shaft of described the first drive motor and the second drive motor respectively;
Electromechanical coupling case, is provided with two input ends, is in transmission connection respectively with the mouth of described two free-wheel clutchs; The mouth connecting electric automobile transmission shaft of described electromechanical coupling case.
2. the two energy feedback power of holding up of pure electricity according to claim 1 combines, and it is characterized in that, also comprise in-vehicle quick charger, described in-vehicle quick charger connects described the first battery pack and the second battery pack.
3. pure electricity according to claim 2 is two holds up the combination of energy feedback power, it is characterized in that, also comprises electrical generator, the input end of the described electrical generator described electronlmobil transmission shaft that is in transmission connection; The mouth of described electrical generator connects described in-vehicle quick charger.
4. the two energy feedback power of holding up of pure electricity according to claim 2 combines, and it is characterized in that, also comprise generator set, described generator set is the ventilation inlet place that is located at described electronlmobil front end that two-shipper assembly is put and superposeed; The mouth of described generator set connects described in-vehicle quick charger.
5. the two energy feedback power of holding up of pure electricity according to claim 2 combines, and it is characterized in that, also comprises solar charging device, and the mouth of described too Ouyang energy charging unit connects described in-vehicle quick charger.
6. according to the two energy feedback power of holding up of the arbitrary described pure electricity of claim 1-5, combine, it is characterized in that, also comprise smart circuit control system, described smart circuit control system comprises:
Signal pickup assembly, comprises the first sensor and the second sensor that are provided with safety voltage setting module, is respectively used to detect the output voltage signal of the first drive motor and the second drive motor;
Central control unit, comprises central process unit, the first driving governor, the second driving governor, the first charge controller and the second charge controller; Described central process unit comprises the first driver module, the second driver module, the first charging module and the second charging module; Described first sensor connects described the first driver module and the second charging module by described safety voltage setting module; Described the second sensor connects described the second driver module and the first charging module by described safety voltage setting module;
Driving control device, comprise the first driving control device and the second driving control device, described the first driving governor is connected respectively described the first drive motor and the second drive motor with the second driving governor with the second drive control device controls by described the first driving control device;
Battery charge controller, comprise the first battery charge controller and the second battery charge controller, described the first charge controller is connected respectively described the first battery pack and the second battery pack with the second charge controller with the second battery charge controller by described the first battery charge controller.
7. the two energy feedback power of holding up of pure electricity according to claim 6 combines, and it is characterized in that, described the first battery charge controller and the second battery charge controller are equipped with constant-current voltage-stabilizing module.
8. pure electricity according to claim 6 is two holds up the combination of energy feedback power, it is characterized in that, also comprises speed regulation device, and described speed regulation device comprises speed governing pedal and for the position transduser of perception speed governing pedal position; Described position transduser communication connects described the first driver module and/or the second driver module; Described the first driver module is connected respectively described the first driving governor and the second driving governor with the second driver module; Described the first driving governor is connected respectively described the first driving control device and the second driving control device with the second driving governor.
9. the two energy feedback power of holding up of pure electricity according to claim 6 combines, and it is characterized in that, described the first battery pack and the second battery pack are lead-acid battery or iron lithium phosphate battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210287937.2A CN103587410A (en) | 2012-08-14 | 2012-08-14 | Pure electrical double-engine energy feedback power assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210287937.2A CN103587410A (en) | 2012-08-14 | 2012-08-14 | Pure electrical double-engine energy feedback power assembly |
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| CN103587410A true CN103587410A (en) | 2014-02-19 |
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| CN201210287937.2A Pending CN103587410A (en) | 2012-08-14 | 2012-08-14 | Pure electrical double-engine energy feedback power assembly |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105291866A (en) * | 2014-06-17 | 2016-02-03 | 李鑫 | High-reliability electromobile adopting low-voltage large-torque coaxial motor power system |
| CN109228888A (en) * | 2018-11-07 | 2019-01-18 | 三重型装备有限公司 | The Dual-motors Driving method of electric vehicle and electric vehicle |
| CN114407659A (en) * | 2022-01-15 | 2022-04-29 | 深圳市宏图童乐科技有限公司 | New energy automobile data analysis method based on big data |
| CN115742775A (en) * | 2022-11-18 | 2023-03-07 | 中国第一汽车股份有限公司 | New forms of energy power assembly and vehicle |
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| US5343971A (en) * | 1990-04-06 | 1994-09-06 | Magnet-Motor Gesellschaft fur Magnetmotorischetechnik mbH | Electric vehicle with individually controlled drive electromotors |
| CN1709742A (en) * | 2005-07-07 | 2005-12-21 | 沈阳理工大学 | Mixed power electric automobile assembly control system |
| CN202319855U (en) * | 2011-11-07 | 2012-07-11 | 苏州瑞佳新能源动力科技有限公司 | Double-motor power driving system for electric automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5343971A (en) * | 1990-04-06 | 1994-09-06 | Magnet-Motor Gesellschaft fur Magnetmotorischetechnik mbH | Electric vehicle with individually controlled drive electromotors |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105291866A (en) * | 2014-06-17 | 2016-02-03 | 李鑫 | High-reliability electromobile adopting low-voltage large-torque coaxial motor power system |
| CN109228888A (en) * | 2018-11-07 | 2019-01-18 | 三重型装备有限公司 | The Dual-motors Driving method of electric vehicle and electric vehicle |
| CN114407659A (en) * | 2022-01-15 | 2022-04-29 | 深圳市宏图童乐科技有限公司 | New energy automobile data analysis method based on big data |
| CN115742775A (en) * | 2022-11-18 | 2023-03-07 | 中国第一汽车股份有限公司 | New forms of energy power assembly and vehicle |
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Effective date of registration: 20170619 Address after: 100045 Beijing City Temple Road Xicheng District Zhigongzhijia building C 1604 Applicant after: China Materials Engineering (Beijing) New Energy Research Institute Address before: No. 1368 Wuzhong District Wuzhong road in Suzhou city of Jiangsu Province in 215000 (Wuzhong Science Park) R & D building A room 622 Applicant before: Suzhou Ruijia New Energy Power Technology Co., Ltd. |
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