CN106740203B - A kind of electric car Portable movable battery pack and its application - Google Patents

A kind of electric car Portable movable battery pack and its application Download PDF

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Publication number
CN106740203B
CN106740203B CN201611193295.4A CN201611193295A CN106740203B CN 106740203 B CN106740203 B CN 106740203B CN 201611193295 A CN201611193295 A CN 201611193295A CN 106740203 B CN106740203 B CN 106740203B
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electric car
management system
battery
battery pack
relay
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CN106740203A (en
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卢丹
吴珂
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China Automotive Battery Research Institute Co Ltd
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China Automotive Battery Research Institute Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/80Exchanging energy storage elements, e.g. removable batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The present invention provides a kind of electric car Portable movable battery pack, including battery group, main positive relay, main negative relay, Hall sensor, battery management system, vehicle plug;The anode of the battery group sequentially with Hall sensor, main positive relay, start switch, the anode output contact of vehicle plug is connected, the cathode of the battery group sequentially exports contact with the cathode of the negative relay of master, vehicle plug and is connected.Electric car Portable movable battery pack proposed by the present invention provides a kind of general interface and control mode with electric car, and small in size, light weight is easy to carry, can be used as a kind of general electric car emergency supplement power supply.Electric car in this way, when automobile batteries is out of power, nearby without charging pile charging station in the case where, Portable movable battery pack is placed in automobile trunk, after connecting with electric car, directly can provide power for electric car.

Description

A kind of electric car Portable movable battery pack and its application
Technical field
The invention belongs to electric energy storage system fields, and in particular to a kind of device to be powered to the load by battery pack.
Background technique
With the development of electric vehicle engineering, environmentally protective idea is rooted in the hearts of the people, and electric car is increasingly consumed The concern of person.However it is limited to the construction of current battery technology and charging station, the course continuation mileage of electric car always is a Very big problem influences the popularization of electric car.
In order to solve the problems, such as electric car course continuation mileage, people have invented vehicle-mounted charge treasured, but this charger baby is wanted It is charging batteries of electric automobile under parked state.In Chinese patent CN105978076A, a kind of moveable electricity is provided Electrical automobile continuation of the journey charging unit, is travelled to the sending of the battery management unit of electric car in charging by battery management system Request, realization can exchanging trickle charge or direct current charge whenever and wherever possible, also can be realized and travelled in charging.But it is actually using When, there are two problems: even if 1. entire car controllers relieve the order of traveling limitation, the battery pack of electric car still needs to reach one Fixed electricity is just able to satisfy the normally travel demand of automobile, this just needs a period of time to charge to battery pack, can not be at once It realizes and is travelled in charging;Still further aspect, battery pack is often in the state that SOC is lower than 20% (i.e. when traveling restriction state) Electric discharge, can greatly reduce the service life of battery.2. to realize to the exchanging trickle charge of batteries of electric automobile group, need in movement It is equipped with inverter in electric car continuation of the journey charging unit, realizes DC-AC transformation;It realizes fast to the direct current of batteries of electric automobile group It fills, needs to be equipped with DC charging motor in mobile electric automobile continuation of the journey charging unit, thus considerably increase the volume of device And weight, cause the inconvenience of carrying.
Ideal solution is to provide a kind of continuation of the journey battery pack, can directly be electric car after connecting with electric car Power supply is provided.However, due in the market electric car producer and model it is many and diverse, voltage, the function of every kind of batteries of electric automobile packet Rate, control mode are different, cause the design of existing continuation of the journey battery pack that can only be directed to certain specific vehicle.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of electric car Portable movable battery packs, and provide A kind of interface and control mode of general battery pack and electric car.
Second object of the present invention is to propose the application of the electric car Portable movable battery pack.
Realize above-mentioned purpose technical solution of the present invention are as follows:
A kind of electric car Portable movable battery pack, which is characterized in that negative including battery group, main positive relay, master Relay starts switch, Hall sensor, battery management system, vehicle plug;
It is provided with CAN module in the battery management system,
The vehicle plug be provided with anode output contact (V+), cathode output contact (V ﹣), high position data line contact and Low data line contact, high position data line contact and low data line contact are connected with the CAN module in battery management system;
The anode of the battery group sequentially with Hall sensor, main positive relay, start switch, the anode of vehicle plug It exports contact to be connected, the cathode of the battery group is sequentially connected with the cathode of the negative relay of master, vehicle plug output contact;
It is described that the emergency power supply for whether being used as electric car for controlling Portable movable battery pack started switch.
The battery group is the lithium battery group of 96 strings 2 simultaneously, the ternary of the string of nominal voltage 355V or 150 2 simultaneously optionally Lithium battery group, nominal voltage 555V, can be used in/large car, but it is general in/large car mostly uses the mode for changing electricity.
Further, the electric car Portable movable battery pack further includes preliminary filling relay, preliminary filling resistance, preliminary filling after The both ends of the positive relay of the master are connected in parallel on after electric appliance and the series connection of preliminary filling resistance.
Wherein, the electric car Portable movable battery pack is provided with direct-current charging interface and alternating-current charging interface, institute It states direct-current charging interface and alternating-current charging interface is all connected with the battery group.
Wherein, the battery group of the electric car Portable movable battery pack, main positive relay, main negative relay, open Dynamic switch, Hall sensor, battery management system are integrated in mobile tank, and the vehicle plug is additionally provided with protection and connects Ground contact (PE), protective grounding contact are connect with the mobile tank.
Wherein, it is provided with accessory power supply in the electric car Portable movable battery pack and controls the accessory power supply Power switch, the power switch connect the battery management system, and the battery management system is provided with human-computer interaction interface.
The present invention also proposes the application of the electric car Portable movable battery pack: when being connect with electric car, institute The Vehicular charging socket of the vehicle plug and electric car of stating electric car Portable movable battery pack connects.
Further, when being connect with electric car, the electric car Portable movable battery pack and batteries of electric automobile Packet is in parallel, anode output contact (V+) of electric car Portable movable battery pack be connected to the master of batteries of electric automobile packet just after After electric appliance, cathode output contact (V ﹣) is connected to after the negative relay of master of batteries of electric automobile packet;The electric car is just Formula mobile battery packet is taken to be communicated with the entire car controller of electric car by CAN bus.
Further, after the electric car Portable movable battery pack is connect with electric car, battery management system There are three power up mode, normal mode of operation and lower power mode control models:
Power up mode: power switch closure, battery management system and human-computer interaction interface power on, and battery management system passes through Charged state is in after self-test;It is issued to batteries of electric automobile packet and closes main positive relay, main negative relay, preliminary filling relay Order, after closing successfully, entire car controller returns to battery management system and requests successful CAN message, and the electric car is just It takes formula mobile battery packet closure to start switch, battery management system, which collects, starts switch closure, and high pressure movement: closure is opened in starting Main negative relay, preliminary filling relay, judge that pre-charge pressure reaches threshold value in 1 second, then are closed main positive relay.Charging stage, Battery management system sends the message of pre-charge state (Precharging) to entire car controller;Preliminary filling success then enters normal Operating mode;
Normal mode of operation:
Electric car Portable movable battery charges normal, and into after normal operating conditions, battery management system is to vehicle Controller periodicity sending battery pack SOC (state-of-charge) value (if without fault code with regard to normally travel);
Lower power mode:
High pressure need to be turned off to battery management system or device failure when entire car controller sends pass high pressure order, or When the SOC value of device battery group is lower than using threshold value, the main positive relay of battery management system control and main negative relay are opened, The High voltage output of disconnecting device.Human-computer interaction interface shows " having descended electricity " at this time.
The battery management system has the function of the independent control to battery group, can be according to the current state of battery pack Judge control High voltage output.
Wherein, in normal mode of operation, the battery management system is to entire car controller periodicity sending fault code.Electricity Pond management system carries out three-level differentiated control: level fault: instrument sound-light alarm, error code prompt, vehicle to battery pack failure 80% power traveling;Secondary failure: instrument sound-light alarm, error code prompt, 50% power of vehicle traveling;Three-level fault: instrument Sound-light alarm, error code prompt, BMS are not received by entire car controller in 3 seconds and close high pressure order, then cutoff high is defeated by force Out.
The beneficial effects of the present invention are:
Electric car Portable movable battery pack proposed by the present invention provides a kind of general connecing with electric car Mouth and control mode, small in size, light weight is easy to carry, can be used as a kind of general electric car emergency supplement power supply.Using The electric car of this mode, when automobile batteries is out of power, nearby without charging pile charging station in the case where, by Portable movable Battery pack is placed in automobile trunk, after connecting with electric car, directly can provide power for electric car.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of apparatus of the present invention.
Fig. 2 is the connection schematic diagram of apparatus of the present invention and automobile.
Fig. 3 is one embodiment of the invention battery management system control flow chart.
In figure, 1: mobile tank, 2: battery group, 3: main positive relay, 4: main negative relay, 5: preliminary filling relay, 6: preliminary filling resistance, 7: it starts switch, 8: Hall sensor, 9: accessory power supply, 10: power switch, 11: battery management system, 12: Human-computer interaction interface, 13: direct-current charging interface, 14: alternating-current charging interface, 15: vehicle plug.
Specific embodiment
Illustrate the present invention below by most preferred embodiment.Those skilled in the art institute it should be understood that, embodiment is only used to It illustrates rather than for limiting the scope of the invention.
In embodiment, unless otherwise instructed, means used are the means of this field routine.
Embodiment 1:
Referring to Fig. 1, a kind of electric car Portable movable battery pack, by mobile tank 1, battery group 2, main positive relay Device 3, preliminary filling relay 5, preliminary filling resistance 6, starts switch 7, Hall sensor 8, accessory power supply 9, power supply and opens main negative relay 4 Close 10, battery management system 11, human-computer interaction interface 12, direct-current charging interface 13, alternating-current charging interface 14, vehicle plug 15 etc. Part forms.
1 size of mobile tank is one 20 cun of trolley cases, and material uses engineering plastics, and bottom is equipped with 2 wheels, and top has Hand lever.
Vehicle plug 15 has 5 contacts, and V+ is the anode output of device, and V- is that the cathode of device exports, and PE is protection Ground connection connect with mobile tank, high position data line contact (CAN_H and low data line contact (CAN_L) and battery management system CAN module in system is connected.The anode of battery group 2 sequentially with Hall sensor 8, main positive relay 3, start switch 7, vehicle The V+ contact of plug is connected, and the both ends of main positive relay are connected in parallel on after preliminary filling relay and the series connection of preliminary filling resistance.Battery group 2 Cathode is sequentially connected with the V- contact of the negative relay 4 of master, vehicle plug.
Preliminary filling relay 5 and preliminary filling resistance 6 are connected in parallel on the both ends of the positive relay of the master after connecting.Electric car is portable Accessory power supply 9 (12V accessory power supply, for powering for battery management system and human-computer interaction interface) is provided in mobile battery packet The power switch 10 of the accessory power supply is controlled, power switch 10 connects battery management system 11.
This electric car Portable movable battery pack is provided with direct-current charging interface and alternating-current charging interface, and the direct current fills Electrical interface and alternating-current charging interface are all connected with the battery group.
Battery group 2 is the ternary lithium battery group of 96 strings 2 simultaneously, and nominal voltage 355V, voltage range is 240V~400V, Capacity is 50Ah.
Battery management system 11 has monomer voltage detection, total voltage detection, total current detection, temperature detection, insulated electro The functions such as resistance detection, SOC estimation, passive equilibrium, charge and discharge control, fault diagnosis, heat management, CAN communication.
Human-computer interaction interface 12 is LCD display, is connected by 485 buses with battery management system 11, can be shown portable The information such as the current voltage of formula mobile battery packet, electricity, convenient for management charging.
Power switch 10 and start switch 7 be located at human-computer interaction interface 12 below the panels.
Referring to fig. 2, the application of this electric car Portable movable battery pack is to connect it with electric car, specially The connection of the Vehicular charging socket of vehicle plug and electric car.
When connecting with electric car, the electric car Portable movable battery pack is in parallel with batteries of electric automobile packet, electricity Anode output contact (V+) of electrical automobile Portable movable battery pack is connected to after the positive relay of master of batteries of electric automobile packet, Cathode output contact (V ﹣) is connected to after the negative relay of master of batteries of electric automobile packet;The electric car Portable movable electricity Chi Bao is communicated with the entire car controller of electric car by CAN bus.
Under normal running conditions, this electric car Portable movable battery pack can drive running car half an hour.
Embodiment 2
Independent control function of the present apparatus battery management system to battery group is described in the present embodiment, using implementation The device of example 1, battery management system 11 have three power up mode, normal mode of operation and lower power mode control models (Fig. 3).
Power up mode:
As shown in figure 3, battery management system 11 and human-computer interaction interface 12 power on, battery when power switch 10 is closed Management system 11 carries out self-test, and 11 judgment means of battery management system are in charged state, and battery management system 11 is switched to Charging state no longer responds any operation, while human-computer interaction interface 12 shows master data.If battery management system 11 Fail self-test, human-computer interaction interface 12 show " ERROR ", and device can only restart.
If after 11 self-test of battery management system is normal, into request working condition, battery management system 11 is to full-vehicle control Device issues CAN message of the request as electric car emergency power supply, after entire car controller receives, sends out to batteries of electric automobile packet The order for closing main positive relay, main negative relay, preliminary filling relay out, after closing successfully, entire car controller is to battery management System 11 returns to the CAN message for requesting successfully or requesting failure.
If battery management system 11 is requested successfully, into Ready state, while human-computer interaction interface 12 shows " READY ". Closure starts switch 7, and battery management system 11, which collects, starts switch 7 closures, and high pressure movement: the main negative relay of closure is opened in starting Device, preliminary filling relay judge that pre-charge pressure reaches threshold value in 1 second, then are closed main positive relay.Charging stage, battery management System 11 sends the message of pre-charge state (Precharging) to entire car controller, and preliminary filling success is sent enabled (Enabled) state message;If preliminary filling fails, the state message of wrong (Error) is sent.
If preliminary filling fails, device enters ERROR state, no longer responds any operation, and human-computer interaction interface 12 is shown The system failure.If preliminary filling success, enter ENABLED state, the controllable main positive relay closure of battery management system 11, dress It sets and enters normal operating conditions, human-computer interaction interface 12 shows " start-up operation ", and shows current flow.
Normal mode of operation:
After device enters normal operating conditions, battery management system 11 is to entire car controller periodicity sending battery pack SOC Value and fault code.Battery management system 11 carries out three-level differentiated control: level fault: instrument acousto-optic report to battery pack failure It is alert, error code prompt, 80% power of vehicle traveling;Secondary failure: instrument sound-light alarm, error code prompt, 50% power of vehicle Traveling;Three-level fault: instrument sound-light alarm, error code prompt, BMS are not received by entire car controller in 3 seconds and close high pressure life It enables, then cutoff high exports by force.
Lower power mode:
Height need to be turned off when entire car controller transmission pass high pressure order three-level fault occurs to battery management system 11 or device When the SOC value of pressure or device battery group 2 is lower than using threshold value, the main positive relay of the control of battery management system 11 and it is main it is negative after Electric appliance is opened, the High voltage output of disconnecting device, and human-computer interaction interface 12 shows " having descended electricity ".
Embodiment 3
When for medium-sized/large car, battery group 2 is the ternary lithium battery group of 150 strings 2 simultaneously, nominal voltage 555V, electricity Pressure range is 420V~630V, and capacity 50Ah can drive running car half an hour.
Above embodiment be only preferred embodiments of the present invention will be described, not to the scope of the present invention into Row limits, and without departing from the spirit of the design of the present invention, this field ordinary engineering and technical personnel is to technical side of the invention The all variations and modifications that case is made, should fall within the scope of protection determined by the claims of the present invention.

Claims (8)

1. a kind of electric car Portable movable battery pack, which is characterized in that including battery group, main positive relay, it is main it is negative after Electric appliance starts switch, Hall sensor, battery management system, vehicle plug;
It is provided with CAN module in the battery management system,
The vehicle plug is provided with anode output contact, cathode output contact, high position data line contact and the touching of low data line Point, high position data line contact and low data line contact are connected with the CAN module in battery management system;
The anode of the battery group sequentially with Hall sensor, main positive relay, start switch, the anode of vehicle plug exports Contact is connected, and the cathode of the battery group is sequentially connected with the cathode of the negative relay of master, vehicle plug output contact;
It is described that the emergency power supply for whether being used as electric car for controlling Portable movable battery pack started switch;
The battery group of the electric car Portable movable battery pack, main negative relay, starts switch, suddenly main positive relay That sensor, battery management system are integrated in mobile tank, and the vehicle plug is additionally provided with protective grounding contact, are protected Shield earthing contact is connect with the mobile tank.
2. electric car Portable movable battery pack according to claim 1, which is characterized in that the electric car is portable Formula mobile battery packet further includes preliminary filling relay, preliminary filling resistance, is connected in parallel on the master after preliminary filling relay and the series connection of preliminary filling resistance The both ends of positive relay.
3. electric car Portable movable battery pack according to claim 2, which is characterized in that the electric car is portable Formula mobile battery packet is provided with direct-current charging interface and alternating-current charging interface.
4. described in any item electric car Portable movable battery packs according to claim 1~3, which is characterized in that the electricity It is provided with accessory power supply in electrical automobile Portable movable battery pack and controls the power switch of the accessory power supply, the power supply is opened Connection connects the battery management system, and the battery management system is provided with human-computer interaction interface.
5. the application of the described in any item electric car Portable movable battery packs of Claims 1 to 4, which is characterized in that with electricity When electrical automobile connects, the vehicle plug of the electric car Portable movable battery pack and the Vehicular charging socket of electric car connect It connects.
6. application according to claim 5, which is characterized in that when connecting with electric car, the electric car is portable Mobile battery packet is in parallel with batteries of electric automobile packet, and the anode output contact of electric car Portable movable battery pack is connected to electricity After the positive relay of the master of electrical automobile battery pack, cathode output contact be connected to batteries of electric automobile packet the negative relay of master it Afterwards;The electric car Portable movable battery pack is communicated with the entire car controller of electric car by CAN bus.
7. application according to claim 5, which is characterized in that the electric car Portable movable battery pack and electronic vapour After vehicle connection, battery management system has three power up mode, normal mode of operation and lower power mode control models:
Power up mode: power switch closure, battery management system and human-computer interaction interface power on, and battery management system passes through self-test It is in charged state afterwards;The life for closing main positive relay, main negative relay, preliminary filling relay is issued to batteries of electric automobile packet It enables, after closing successfully, entire car controller returns to battery management system and requests successful CAN message, and the electric car is portable Formula mobile battery packet closure starts switch, and battery management system, which collects, starts switch closure, and high pressure movement: closure master is opened in starting Negative relay, preliminary filling relay judge that pre-charge pressure reaches threshold value in 1 second, then are closed main positive relay;Charging stage, electricity Pond management system sends the message of pre-charge state to entire car controller;Preliminary filling success then enters normal mode of operation;
Normal mode of operation:
Electric car Portable movable battery charges normal, and into after normal operating conditions, battery management system is to full-vehicle control Device periodicity sending battery pack SOC value;
Lower power mode:
High pressure or device need to be turned off to battery management system or device failure when entire car controller sends pass high pressure order When the SOC value of battery group is lower than using threshold value, the main positive relay of battery management system control and main negative relay are opened, cutting The High voltage output of device.
8. application according to claim 7, which is characterized in that in normal mode of operation, the battery management system is to whole Vehicle controller periodicity sending fault code, battery management system carry out three-level differentiated control: level fault to battery pack failure: Instrument sound-light alarm, error code prompt, 80% power of vehicle traveling;Secondary failure: instrument sound-light alarm, error code prompt, vehicle 50% power traveling;Three-level fault: instrument sound-light alarm, error code prompt, BMS were not received by full-vehicle control in 3 seconds Device closes high pressure order, then cutoff high exports by force.
CN201611193295.4A 2016-12-21 2016-12-21 A kind of electric car Portable movable battery pack and its application Active CN106740203B (en)

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Inventor after: Tang Haibo

Inventor after: Li Ang

Inventor after: Lu Dan

Inventor after: Wu Ke

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Inventor before: Wu Ke