CN113879125A - Electric energy driving and recovering method and integrated device thereof - Google Patents
Electric energy driving and recovering method and integrated device thereof Download PDFInfo
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- CN113879125A CN113879125A CN202111021215.8A CN202111021215A CN113879125A CN 113879125 A CN113879125 A CN 113879125A CN 202111021215 A CN202111021215 A CN 202111021215A CN 113879125 A CN113879125 A CN 113879125A
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- toothed wheel
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- 238000000034 method Methods 0.000 title claims description 12
- 230000006698 induction Effects 0.000 claims abstract description 9
- 238000010248 power generation Methods 0.000 claims abstract description 5
- 238000004064 recycling Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 4
- 230000005672 electromagnetic field Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Classifications
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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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
-
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
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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
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A driving coil and a generating coil are uniformly arranged in the same plane in a circle to form an annular coil group, permanent magnet groups corresponding to the positions of the permanent magnet groups are respectively arranged on the front end surface and the rear end surface of the annular coil group, the permanent magnets are embedded on a rotatable carrier to rotate synchronously, intermittent magnetic force is generated by introducing intermittent current to the driving coil, and the magnetic force of the driving coil generates suction force or repulsion force on the permanent magnet groups to enable the carrier to rotate; the carrier and the permanent magnet are driven to rotate by external force, the generated magnetic induction wire cuts the power generation coil group to generate current, and the current is rectified and filtered and then is connected to the power storage device for charging. The utility model can realize the function of electric energy driving and recycling on the same device without installing a motor and a generator, and has compact structure and reliable operation.
Description
Technical Field
The utility model relates to the technical field of electric energy devices, in particular to an electric energy driving and recovering method and an integrated device thereof.
Background
In recent years, due to the stricter environmental protection requirements of urban air, electric bicycles and electric automobiles become a new favorite for urban traffic, but the problem of battery energy source endurance troubling electric automobiles still cannot be fundamentally solved, and the energy storage of batteries still is the bottleneck of electric automobiles replacing fuel automobiles. In order to overcome the defect of insufficient mileage of the electric vehicle, when the electric vehicle slides in a neutral position or on a downhill, kinetic energy of the electric vehicle is converted into electric energy, and the electric energy is reversely charged into a battery, so that part of energy can be recycled, and the cruising ability of the electric vehicle is improved.
Generally, an electric motor is installed on an electric vehicle for driving, and if an energy recovery system is installed, a set of generator and transmission system is required to be additionally installed to be connected to a storage battery, so that kinetic energy is converted into electric energy through the generator and is reversely supplemented to the storage battery. However, the added energy recovery system has the following defects: 1. the cost is high, and the generator and other charging transmission mechanisms need to additionally increase the cost; 2. the volume is increased, and the energy recovery system needs to additionally provide space for placement, so that the space in the automobile which is already very compact originally is more narrow, and the design of the space in the automobile is also a difficult problem.
Disclosure of Invention
The utility model aims to provide an electric energy driving and recovering method and an integrated device thereof, which can realize the function of realizing the electric energy driving and recovering function without installing a motor and a generator on the same device, and have compact structure and reliable operation.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
a method for driving and recovering electric energy is characterized in that a driving coil and a generating coil are uniformly arranged in the same plane in a circle to form an annular coil group, permanent magnet groups corresponding to the positions of the permanent magnet groups are respectively arranged on the front end surface and the rear end surface of the annular coil group, the permanent magnets are embedded on a rotatable carrier to rotate synchronously, intermittent magnetic force is generated by introducing intermittent current to the driving coil, and the magnetic force of the driving coil generates suction force or repulsion force on the permanent magnet groups to enable the carrier to rotate;
the carrier and the permanent magnet are driven to rotate by external force, the generated magnetic induction wire cuts the power generation coil group to generate current, and the current is rectified and filtered and then is connected to the power storage device for charging.
The integrated devices used were: the base plates are fixedly connected by using a support rod to form a frame, a plurality of coils are annularly arranged in the space in the middle of the base plates, and the coils are divided into driving coils and generating coils; a bearing and a middle shaft are arranged in the middle of the base plate, a rear flywheel and a front flywheel are respectively arranged on the front end surface and the rear end surface of the base plate and are fixed at the two ends of the middle shaft, a magnet A and a magnet B are respectively and fixedly arranged on the edges, close to the edges, of the rear flywheel and the front flywheel, and the positions of the magnet A and the magnet B are matched with the positions of the coils; the middle shaft is also provided with a toothed wheel, the frame is provided with a fixed plate, the fixed plate is provided with a photosensitive annunciator, and the photosensitive annunciator and the toothed wheel generate signal induction; the tooth number of the tooth-shaped wheel, the number of the magnets A and the number of the magnets B are the same, and the positions of the magnets A and the magnets B are matched;
the photosensitive annunciator is connected with the controller, all the driving coils are connected in series or in parallel, and all the generating coils are connected in series or in parallel; the on-off of the two series or parallel circuits and the storage battery is controlled by a controller.
Among the integrated devices used are: the driving coil and the generating coil are uniformly distributed on the circumference.
Among the integrated devices used are: the number of the toothed wheels is two, namely a toothed wheel A and a toothed wheel B, and the two toothed wheels can be fixedly arranged in a staggered mode.
Among the integrated devices used are: and two ends of the middle shaft are provided with shaft shoulders, and the rear flywheel and the front flywheel are arranged at the shaft shoulders.
Among the integrated devices used are: the middle shaft is provided with a shaft sleeve, and the front flywheel and the toothed wheel are positioned through the shaft sleeve.
The working principle of the utility model is as follows:
the rotating load is fixed on the middle shaft or connected to the middle shaft through other transmission mechanisms.
The first driving state:
the controller controls the storage battery and the driving coil to form a passage, and the storage battery and the generating coil form an open circuit; the driving coil forms an electromagnetic field under the action of the current of the storage battery, and two poles of the electromagnetic field repel the magnets A and B on the front flywheel and the rear flywheel; when the convex teeth of the toothed wheel shield the optical signal of the photosensitive annunciator, or the toothed wheel does not shield the optical signal of the photosensitive annunciator, the annunciator can send different signals to the controller;
finely adjusting the power on and off time of the controller according to the signal of the photosensitive annunciator; when the magnet just passes through the position of the driving coil, the controller controls the repulsive force generated by electrifying the driving coil to push the magnet to generate a rotating moment; when the magnet is rotationally pushed out to the middle position of the two driving coils, the controller controls the driving coils to be disconnected, the magnet is enabled to rotate to the next driving coil position through inertia, and the controller is powered on again to drive the magnet through the second driving coil position. The above circulation is repeated, the drive coil realizes the intermittent current continuously switched on and off by the drive coil, the intermittent current generates intermittent magnetic field thrust to act on the magnets A and B, and then the continuous rotation of the front flywheel and the rear flywheel under the action of magnetic force is realized. When the driving force is not needed, the controller opens the circuit, the driving coil loses the magnetic power, and the flywheel does not have the driving moment.
The second driving state:
the controller controls the storage battery and the driving coil to form a passage, and the storage battery and the generating coil form an open circuit; the driving coil forms an electromagnetic field under the action of the current of the storage battery, and two poles of the electromagnetic field are attracted with the magnets A and B on the front flywheel and the rear flywheel; when the convex teeth of the toothed wheel shield the optical signal of the photosensitive annunciator, or the toothed wheel does not shield the optical signal of the photosensitive annunciator, the annunciator can send different signals to the controller;
finely adjusting the power on and off time of the controller according to the signal of the photosensitive annunciator; when the magnet is positioned between the two drive coil positions, the controller controls the attraction force generated by electrifying the drive coils to pull the magnet to generate a rotating moment; when the magnet is rotated to a position proximate to the drive coil, the controller controls the drive coil to open circuit, allowing the magnet to freewheel through the drive coil position and again to the next drive coil intermediate position, and the controller energizes the drive magnet again. The above circulation is repeated, the drive coil realizes the intermittent current continuously switched on and off by the drive coil, the intermittent current generates intermittent magnetic field thrust to act on the magnets A and B, and then the continuous rotation of the front flywheel and the rear flywheel under the action of magnetic force is realized. When the driving force is not needed, the controller opens the circuit, the driving coil loses the magnetic power, and the flywheel does not have the driving moment.
The energy recovery state:
the controller controls the circuit of the driving coil and the storage battery to be open, and the closed loop circuit of the generating coil, the inverter and the storage battery is a passage; the central shaft drives the front and rear flywheels to rotate, a magnetic induction line formed by the magnets A and B and a power generation coil move relatively, the coil cuts the magnetic induction line to form current, the alternating high-frequency current is converted into stable low-voltage direct current through a rectifier and a filter which are integrated in the controller, and the direct current is input into a storage battery to be recycled.
The utility model has the advantages that:
the utility model changes the current situation that the electric energy is driven and recovered by respectively using the motor and the generator in the traditional electric vehicle or equipment, can finish the effects of driving and recovering the electric energy only by using the coil group and the permanent magnet, and simultaneously reduces a large number of transmission parts, so that the whole system becomes very simple, and the cost of the device is greatly saved; meanwhile, a large amount of space volume is saved, and the whole device is compact; because the adopted parts are fewer, the failure rate and the maintenance rate can be greatly reduced, and the running reliability of the device is improved.
Description of the drawings:
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is a schematic view of the front view of the present invention;
FIG. 3 is an enlarged view of the structure at A-A in FIG. 2;
FIG. 4 is a schematic view of a rear view of the present invention;
FIG. 5 is a schematic structural diagram of a staggered arrangement of a toothed wheel A and a toothed wheel B;
FIG. 6 is a circuit layout of the present invention (coils in series arrangement);
FIG. 7 is a circuit layout of the present invention (coil parallel arrangement);
FIG. 8 is an exemplary view of two types of coils and poles of a magnet;
FIG. 9 is a photograph of a prototype object of the present invention;
the components in the figure are identified as: 1. a substrate; 11. a support rod; 2. a middle shaft; 21. a bearing; 3. a coil; 31. a drive coil; 32. a power generating coil; 41. a rear flywheel; 411. a magnet A; 42. a front flywheel; 421. a magnet B; 5. a toothed wheel; 51. a toothed wheel A; 52. a toothed wheel A; 6. a light sensitive annunciator; 61. and (7) fixing the plate.
Detailed Description
Example 1
An electric energy driving and recovering method is characterized in that: the driving coil and the generating coil are uniformly arranged in the same plane in the same circumference to form an annular coil group, the front end surface and the rear end surface of the annular coil group are respectively provided with a permanent magnet group corresponding to the positions of the permanent magnet group, the permanent magnets are embedded on a rotatable carrier to rotate synchronously, intermittent magnetic force is generated by introducing intermittent current to the driving coil, and the magnetic force of the driving coil generates suction force or repulsion force on the permanent magnet group to enable the carrier to rotate;
the carrier and the permanent magnet are driven to rotate by external force, the generated magnetic induction wire cuts the power generation coil group to generate current, and the current is rectified and filtered and then is connected to the power storage device for charging.
The integrated devices used were: the base plates 1 are fixedly connected by using the support rods 11 to form a frame, a plurality of coils 3 are annularly arranged in the space in the middle of the base plates 1, and the coils 3 are divided into a driving coil 31 and a generating coil 32; the middle of the base plate 1 is provided with a bearing 21 and a middle shaft 2, the front end face and the rear end face of the base plate 1 are respectively provided with a rear flywheel 41 and a front flywheel 42 which are fixed at two ends of the middle shaft, the edges, close to the rear flywheel 41 and the front flywheel 42, of the rear flywheel 41 and the front flywheel 42 are respectively and fixedly provided with a magnet A411 and a magnet B421, and the positions of the magnet A411 and the magnet B421 are matched with the position of the coil 3; the middle shaft 2 is also provided with a toothed wheel 5, the frame is provided with a fixed plate 61, the fixed plate 61 is provided with a photosensitive annunciator 6, and the photosensitive annunciator 6 and the toothed wheel 5 generate signal induction; the tooth number of the toothed wheel 5, the number of the magnets A411 and the number of the magnets B421 are the same, and the positions are matched; the tooth width of the toothed wheel 5 and the width of the part without teeth are 1: 1;
the photosensitive annunciator 6 is connected with the controller, all the driving coils 31 are connected in series or in parallel, and all the generating coils 32 are connected in series or in parallel; the on-off of the two series or parallel circuits and the storage battery is controlled by a controller;
among the integrated devices used are: the driving coil 31 and the generating coil 32 are uniformly distributed on the circumference;
among the integrated devices used are: the number of the toothed wheels 5 is two, namely a toothed wheel A51 and a toothed wheel B52, and the two toothed wheels can be fixedly arranged in a staggered mode;
among the integrated devices used are: two ends of the middle shaft 2 are provided with shaft shoulders, and the rear flywheel 41 and the front flywheel 42 are arranged at the shaft shoulders;
among the integrated devices used are: the middle shaft 2 is provided with a shaft sleeve, and the front flywheel 42 and the toothed wheel 5 are positioned through the shaft sleeve;
as shown in fig. 6:
in the figure, L1 is a driving coil, L2 is a generating coil, terminals 1 and 2 of the controller are power supply ports of the light-sensitive annunciator, and terminal 3 is a signal feedback port of the light-sensitive annunciator; ports 4 and 9 are power ports that drive coil L1 in series; ports 5 and 7 are the power supply ports of the series generating coil L2; the port 6 is a B-level trigger signal end of a switching triode Q1 and is used for controlling the on-off of a circuit of a generating coil; the port 8 is a B-stage trigger signal end of the switching transistor Q2, and controls the on/off of the circuit of the driving coil.
Example 2
The difference from the embodiment 1 is that: in the figure, L1 is a driving coil, L2 is a generating coil, terminals 1 and 2 of the controller are power supply ports of the light-sensitive annunciator, and terminal 3 is a signal feedback port of the light-sensitive annunciator; ports 4 and 9 are power ports that drive coil L1 in parallel; ports 5 and 7 are the power supply ports of the parallel generating coil L2; the port 6 is a B-level trigger signal end of a switching triode Q1 and is used for controlling the on-off of a circuit of a generating coil; the port 8 is a B-stage trigger signal end of the switching transistor Q2, and controls the on/off of the circuit of the driving coil.
Claims (6)
1. An electric energy driving and recovering method is characterized in that: the driving coil and the generating coil are uniformly arranged in the same plane in the same circumference to form an annular coil group, the front end surface and the rear end surface of the annular coil group are respectively provided with a permanent magnet group corresponding to the positions of the permanent magnet group, the permanent magnets are embedded on a rotatable carrier to rotate synchronously, intermittent magnetic force is generated by introducing intermittent current to the driving coil, and the magnetic force of the driving coil generates suction force or repulsion force on the permanent magnet group to enable the carrier to rotate;
the carrier and the permanent magnet are driven to rotate by external force, the generated magnetic induction wire cuts the power generation coil group to generate current, and the current is rectified and filtered and then is connected to the power storage device for charging.
2. The electric power driving and recovering method according to claim 1, wherein: the integrated devices used were: the base plates (1) are fixedly connected by using a support rod (11) to form a frame, a plurality of coils (3) are annularly arranged in the space in the middle of the base plates (1), and the coils (3) are divided into a driving coil (31) and a generating coil (32); a bearing (21) and a middle shaft (2) are arranged in the middle of a base plate (1), a rear flywheel (41) and a front flywheel (42) are respectively arranged on the front end surface and the rear end surface of the base plate (1) and fixed at the two ends of the middle shaft, a magnet A (411) and a magnet B (421) are respectively and fixedly arranged on the edges, close to the rear flywheel (41) and the front flywheel (42), of the base plate, and the positions of the magnet A (411) and the magnet B (421) are matched with the position of a coil (3); a toothed wheel (5) is further mounted on the middle shaft (2), a fixing plate (61) is mounted on the frame, a photosensitive annunciator (6) is mounted on the fixing plate (61), and the photosensitive annunciator (6) and the toothed wheel (5) generate signal induction; the tooth number of the toothed wheel (5), the number of the magnets A (411) and the number of the magnets B (421) are the same, and the positions are matched;
the photosensitive annunciator (6) is connected with the controller, all the driving coils (31) are connected in series or in parallel, and all the generating coils (32) are connected in series or in parallel; the on-off of the two series or parallel circuits and the storage battery is controlled by a controller.
3. The electric power driving and recovering method according to claim 2, wherein: among the integrated devices used are: the driving coil (31) and the generating coil (32) are evenly distributed at the circumferential position.
4. The electric power driving and recovering method according to claim 2, wherein: among the integrated devices used are: the number of the toothed wheels (5) is two, namely a toothed wheel A (51) and a toothed wheel B (52), and the two toothed wheels can be fixedly arranged in a staggered mode.
5. The electric power driving and recovering method according to claim 2, wherein: among the integrated devices used are: shaft shoulders are arranged at two ends of the middle shaft (2), and the rear flywheel (41) and the front flywheel (42) are arranged at the shaft shoulders.
6. The electric power driving and recovering method according to claim 2, wherein: among the integrated devices used are: the middle shaft (2) is provided with a shaft sleeve, and the front flywheel (42) and the toothed wheel (5) are positioned through the shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111021215.8A CN113879125A (en) | 2021-09-01 | 2021-09-01 | Electric energy driving and recovering method and integrated device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111021215.8A CN113879125A (en) | 2021-09-01 | 2021-09-01 | Electric energy driving and recovering method and integrated device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113879125A true CN113879125A (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111021215.8A Pending CN113879125A (en) | 2021-09-01 | 2021-09-01 | Electric energy driving and recovering method and integrated device thereof |
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| Country | Link |
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| CN (1) | CN113879125A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201783U (en) * | 1985-05-04 | 1986-03-05 | 长治清华机械厂 | Integrated motor without electric brush for electrically driven bicycle |
| CN1091555A (en) * | 1993-02-26 | 1994-08-31 | 王秉平 | Permanent-magnet engine with LC oscillation reclaiming current |
| CN1173071A (en) * | 1996-08-03 | 1998-02-11 | 王秉平 | Recovery energy type permanent-magnet dynamo-electric machine |
| AU2003304538A1 (en) * | 2003-06-02 | 2004-06-06 | Ambient Systems, Inc. | Electromechanical assemblies using molecular-scale electrically conductive and mechanically flexible beams and methods for application of the same |
| CN103227542A (en) * | 2012-01-31 | 2013-07-31 | 建准电机工业股份有限公司 | Power generating motor |
| CN108177533A (en) * | 2018-03-16 | 2018-06-19 | 李晓卫 | A kind of magnetomotive power self-supplying electric vehicle |
| CN108599405A (en) * | 2018-05-09 | 2018-09-28 | 寇开郁 | Integrated motor based on power generation with driving |
| CN216002224U (en) * | 2021-09-01 | 2022-03-11 | 广西壮大氢能源科技有限公司 | Electric energy driving and recycling integrated device |
-
2021
- 2021-09-01 CN CN202111021215.8A patent/CN113879125A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201783U (en) * | 1985-05-04 | 1986-03-05 | 长治清华机械厂 | Integrated motor without electric brush for electrically driven bicycle |
| CN1091555A (en) * | 1993-02-26 | 1994-08-31 | 王秉平 | Permanent-magnet engine with LC oscillation reclaiming current |
| CN1173071A (en) * | 1996-08-03 | 1998-02-11 | 王秉平 | Recovery energy type permanent-magnet dynamo-electric machine |
| AU2003304538A1 (en) * | 2003-06-02 | 2004-06-06 | Ambient Systems, Inc. | Electromechanical assemblies using molecular-scale electrically conductive and mechanically flexible beams and methods for application of the same |
| CN103227542A (en) * | 2012-01-31 | 2013-07-31 | 建准电机工业股份有限公司 | Power generating motor |
| CN108177533A (en) * | 2018-03-16 | 2018-06-19 | 李晓卫 | A kind of magnetomotive power self-supplying electric vehicle |
| CN108599405A (en) * | 2018-05-09 | 2018-09-28 | 寇开郁 | Integrated motor based on power generation with driving |
| CN216002224U (en) * | 2021-09-01 | 2022-03-11 | 广西壮大氢能源科技有限公司 | Electric energy driving and recycling integrated device |
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