CN114122548A - Lithium battery with self-extinguishing structure - Google Patents

Lithium battery with self-extinguishing structure Download PDF

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Publication number
CN114122548A
CN114122548A CN202111423653.7A CN202111423653A CN114122548A CN 114122548 A CN114122548 A CN 114122548A CN 202111423653 A CN202111423653 A CN 202111423653A CN 114122548 A CN114122548 A CN 114122548A
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China
Prior art keywords
lithium battery
box body
fixed box
battery module
outer side
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CN202111423653.7A
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CN114122548B (en
Inventor
何晓辉
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Jiangxi Shenchao Energy Technology Co ltd
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Jiangxi Shenchao Energy Technology Co ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/04—Removing or cutting-off the supply of inflammable material
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

The invention discloses a lithium battery with a self-extinguishing structure, which relates to the technical field of lithium batteries and comprises a fixed box body, a connection plate and a protective air bag, wherein a lithium battery module is arranged on the inner side of the fixed box body, connection ports are arranged on two sides of the top of the lithium battery module, the middle end of the outer side of each connection port is connected with a through circuit board, and the outer side of the bottom of each connection port is provided with the connection plate. When the lithium battery is used, if a single lithium battery module is damaged and cannot be normally used, the detector can detect the abnormal state of the lithium battery module, the micro motor works to drive the screw rod to rotate, the sliding seat can slide on the inner side of the sliding groove in the rotating process of the screw rod, and the two butt-joint seats are butted, so that the wiring boards and the connecting wires at the two ends of the top of the lithium battery module are communicated, and the connecting port at the left end can be directly electrically connected with the connecting port at the right end by bypassing the lithium battery module.

Description

Lithium battery with self-extinguishing structure
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a lithium battery with a self-extinguishing structure.
Background
A lithium battery is a type of battery using a nonaqueous electrolyte solution, using lithium metal or a lithium alloy as a positive/negative electrode material. Because the chemical properties of lithium metal are very active, the requirements on the environment for processing, storing and using the lithium metal are very high, and with the development of scientific technology, the lithium battery becomes the mainstream of the storage battery.
Lithium cell for electric motor car in the market is connected the concatenation by several lithium cell module series usually and is constituteed, because of lithium cell module adopts series connection, in long-time use, if single lithium cell module damages, then the lithium cell of follow-up series connection can't continue power supply work, and this can lead to the electric capacity of lithium cell to descend by a wide margin to need frequently to maintain the lithium cell of replacement damage.
Disclosure of Invention
The present invention is directed to a lithium battery having a self-extinguishing structure to solve the problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a lithium battery with a self-extinguishing structure comprises a fixed box body, a connecting plate and a protective air bag, wherein a lithium battery module is arranged on the inner side of the fixed box body, connecting ports are arranged on two sides of the top of the lithium battery module, the middle end of the outer side of each connecting port is connected with a passage plate, the outer side of the bottom of each connecting port is provided with the connecting plate, wiring plates are arranged on two sides of the inner part of each connecting plate, a connecting wire is arranged on one side, close to the vertical central line of the connecting plate, of each wiring plate, the tail end of each connecting wire is connected with a butt joint seat, sliding seats are arranged on two sides of the outer side of each butt joint seat, sliding grooves are formed in two sides of the outer part of each connecting plate, a micro motor is connected to the outer side of the top of the lithium battery module, a screw rod is arranged on the outer side of each micro motor, a limiting rod is arranged on one side, far away from the screw rod, of each connecting plate, and the outer side of the top of the fixed box body is connected with the protective air bag, the outside of connection port is connected with the circular telegram line, protective housing's inside right side is provided with wire winding subassembly, lithium cell module's outside surface is around there being the baffle, the bottom both sides that state fixed box body are provided with the pump, protective airbag connects in fixed box body's outside surface, protective airbag is close to fixed box body one side and is connected with communicating pipe, and the outside of communicating pipe is provided with electric control valve, the top middle-end of fixed box body is provided with the subassembly of bleeding.
Preferably, the connection port is electrically connected with the through-circuit board, and the connection port is electrically connected with the wiring board.
Preferably, the sliding seats are symmetrically distributed along the vertical center line of the butt joint seat, and the sliding seats form a sliding structure through sliding grooves.
Preferably, the micro motor is in transmission connection with the lead screw, and the lead screw and the limiting rod are distributed in a parallel manner.
Preferably, the winding assembly comprises a supporting plate, a winding seat and a driving motor, the winding seat is arranged on the inner side of the supporting plate, and the driving motor is arranged on the outer side of the winding seat.
Preferably, the driving motor is in transmission connection with the winding seat, and the outer surface of the winding seat is attached to the outer surface of the electrified wire.
Preferably, the inflator pumps are symmetrically distributed along the vertical central line of the fixed box body, and the inflator pumps are communicated with the protective air bags.
Preferably, the protective air bag is in adhesive connection with the fixed box body, and the protective air bag is annularly distributed on the outer side of the fixed box body.
Preferably, the air extraction assembly comprises an air extraction pump, an air extraction pipe and an exhaust pipe, the air extraction pipe is arranged on the outer side of the right part of the air extraction pump, and the exhaust pipe is connected to the outer side of the left part of the air extraction pump.
Preferably, the air pump is communicated with the fixed box body through an air pumping pipe, and the air pump is connected with the fixed box body through a fixing bolt.
The invention provides a lithium battery with a self-extinguishing structure, which has the following beneficial effects: the wiring board and the connecting wire at lithium battery module top both ends communicate, the connection port that enables the left end walks around lithium battery module and directly carries out electric connection with the connection port of right-hand member, this can avoid the lithium battery module of establishing ties to damage the back, the condition that the lithium cell that leads to follow-up establishing ties can't continue to supply power work takes place, automatically controlled valve 21 opens, this makes protective air bag 19 can be linked together with fixed box body 1's inside, because of fixed box body 1 is inside to be the vacuum form, this makes the cold air in protective air bag 19 can pour into fixed box body 1 rapidly inside, cool down fixed box body 1.
1. When the lithium battery is used, if a single lithium battery module is damaged and cannot be normally used, the detector can detect the abnormal state of the lithium battery module, the micro motor works to drive the screw rod to rotate, the sliding seat can slide on the inner side of the sliding groove in the rotation process of the screw rod, and the two butt-joint seats are butted, so that the wiring boards and the connecting wires at the two ends of the top of the lithium battery module are communicated, the connecting port at the left end can be directly electrically connected with the connecting port at the right end by bypassing the lithium battery module, and the condition that the subsequent lithium batteries connected in series cannot continue to supply power after the lithium battery modules connected in series are damaged can be avoided.
2. If the distance between the electrified wire and the charging equipment is too far, the electrified wire can be pulled to drive the winding base to rotate, and the electrified wire wound on the surface of the winding base is wound out, so that the overall length of the electrified wire can be improved, the distance between the electrified wire and the charging equipment can be compensated, and if the distance between the external electrified wire and the charging equipment is too long, the winding base is driven to rotate by the driving motor, so that the overlong electrified wire can be wound by the winding base, the influence of the overlong length of the electrified wire on normal use can be avoided, and meanwhile, the damage probability of the electrified wire can be reduced.
3. The protection airbag is capable of inflating to expand through the inflation pump, and after the protection airbag expands, the gap between the fixed box body and the external arrangement space of the fixed box body can be made up, so that the external arrangement space can be filled with the fixed box body, the arrangement stability of the fixed box body can be improved, and when external impact force is transmitted to the arrangement space where equipment is located, the protection airbag can absorb the impact force and avoid the impact force from being directly transmitted to the surface of the fixed box body, and the protection performance and the working stability of the equipment can be improved.
4. The lithium battery module self-extinguishing device works through the air suction pump, air in the fixed box body can be sucked out of the air suction pipe and exhausted from the exhaust pipe, so that vacuum can be formed in the fixed box body, the interference of external factors on the lithium battery module can be reduced in a vacuum environment, the working stability of the lithium battery module can be improved, in addition, the vacuum environment is an oxygen-free environment, when the lithium battery module is in a short circuit, the oxygen-free environment can prevent the lithium battery module from being ignited, the device has a good self-extinguishing function, and meanwhile, the lithium battery module can be prevented from being ignited and being burnt to cause larger loss.
5. When the lithium battery module 2 works for a long time to generate more heat, the electric control valve 21 at the outer end of the communicating pipe 20 is opened, so that the protective air bag 19 can be communicated with the inside of the fixed box body 1, the inside of the fixed box body 1 is in a vacuum state, cold air in the protective air bag 19 can be rapidly filled into the fixed box body 1 to cool the fixed box body 1, and after the cooling is finished, the air suction pump 2201 continues to work to discharge residual high temperature and air, so that the lithium battery module 2 can work at a lower temperature, and the inside of the fixed box body 1 can be restored to the vacuum state again.
Drawings
Fig. 1 is a schematic front view of a lithium battery having a self-extinguishing structure according to the present invention;
FIG. 2 is a schematic top view of a lithium battery module of a lithium battery with a self-extinguishing structure according to the present invention;
fig. 3 is an enlarged schematic view of a lithium battery having a self-extinguishing structure shown at a point a in fig. 2 according to the present invention;
fig. 4 is an overall top view structural diagram of a lithium battery with a self-extinguishing structure according to the present invention;
fig. 5 is a schematic view illustrating a structure of a winding assembly of a lithium battery having a self-extinguishing structure according to the present invention.
In the figure: 1. fixing the box body; 2. a lithium battery module; 3. a connection port; 4. a via plate; 5. a connection plate is connected; 6. a wiring board; 7. a connecting line; 8. a docking station; 9. a sliding seat; 10. a chute; 11. a micro motor; 12. a lead screw; 13. a limiting rod; 14. a protective housing; 15. electrifying the wire; 16. a winding assembly; 1601. a support plate; 1602. a winding seat; 1603. a drive motor; 17. a baffle plate; 18. an inflator pump; 19. a protective air bag; 20. a communicating pipe; 21. an electrically controlled valve; 22. an air extraction assembly; 2201. an air pump; 2202. an air exhaust pipe; 2203. and (4) exhausting the gas.
Detailed Description
Referring to fig. 1-5, the present invention provides a technical solution: a lithium battery with a self-extinguishing structure comprises a fixed box body 1, a connecting plate 5 and a protective air bag 19, wherein a lithium battery module 2 is arranged on the inner side of the fixed box body 1, connecting ports 3 are arranged on two sides of the top of the lithium battery module 2, the middle end of the outer side of each connecting port 3 is connected with a through circuit board 4, the outer side of the bottom of each connecting port 3 is provided with the connecting plate 5, wiring boards 6 are arranged on two sides of the inner part of each connecting plate 5, one side, close to the vertical central line of the connecting plate 5, of each wiring board 6 is provided with a connecting line 7, the tail end of each connecting line 7 is connected with a butt joint seat 8, two sides of the outer side of each butt joint seat 8 are provided with sliding seats 9, sliding grooves 10 are formed in two sides of the outer part of each connecting plate 5, a micro motor 11 is connected with the outer side of the top of the lithium battery module 2, a lead screw 12 is arranged on the outer side, a limiting rod 13 is arranged on the side, far away from the lead screw 12, of the connecting plate 5, a protective shell 14 is connected with the outer side of the top of the fixed box body 1, the outside of connection port 3 is connected with circular telegram line 15, and protective housing 14's inside right side is provided with wire winding subassembly 16, and lithium battery module 2's outside surface has surrounded baffle 17, states the bottom both sides of fixed box body 1 and is provided with pump 18, and protective airbag 19 connects in the outside surface of fixed box body 1, and protective airbag 19 is close to fixed box body 1 one side and is connected with communicating pipe 20, and the outside of communicating pipe 20 is provided with electric control valve 21, and the top middle-end of fixed box body 1 is provided with air exhaust subassembly 22.
Referring to fig. 1-3, the connection port 3 is electrically connected to the access board 4, the connection port 3 is electrically connected to the wiring board 6, the sliding seats 9 are symmetrically distributed along the vertical center line of the docking seat 8, the sliding seats 9 form a sliding structure through the sliding chute 10, the micro motor 11 is in transmission connection with the lead screw 12, and the lead screw 12 and the limiting rod 13 are distributed in parallel;
the operation is concretely as follows, the connecting ports at the top ends of the lithium battery modules 2 are left positive and right negative, two lithium battery modules 2 are placed one positive and one negative, which enables the positive and negative connecting ports 3 of the two lithium battery modules 2 to be at the same end, after the through circuit board 4 is connected with the positive and negative connecting ports 3 of the two lithium battery modules 2, the two lithium battery modules 2 can be electrically connected, the operation is repeated, a plurality of lithium battery modules 2 can be combined into a whole lithium battery, the assembled lithium battery is arranged at the inner side of the fixed box body 1, the general positive end and the general negative end of the lithium battery are connected with the electrifying wire 15, the electrifying wire 15 is led out of the fixed box body 1 and then the fixed box body 1 is sealed, the installation of the lithium battery can be realized, the inside of each lithium battery module 2 is provided with the detector, and the detector can test the working state, the current, voltage, resistance and other data of the lithium battery modules 2, when the lithium battery is in use, if a single lithium battery module 2 is damaged and cannot be normally used, the detector can detect the abnormal state of the lithium battery module 2, after the detection and judgment are abnormal, the micro motor 11 works to drive the lead screw 12 to rotate, the slide seat 9 can slide on the inner side of the chute 10 and enable the two butt-joint seats 8 to be in butt joint in the rotating process of the lead screw 12, the limit can be carried out by the limiting rod 13 in the sliding process of the slide seat 9 to ensure the butt joint stability between the two butt-joint seats 8, after the butt joint of the two butt-joint seats 8 is completed, the wiring boards 6 and the connecting wires 7 at the two ends of the top of the lithium battery module 2 can be communicated, so that the connecting port 3 at the left end can directly and electrically connect with the connecting port 3 at the right end by bypassing the lithium battery module 2, and the damage to the lithium battery module 2 connected in series can be avoided, the condition that leads to follow-up series connection's lithium cell all can't continue to supply power work takes place, micro motor 11 and detector are supplied power by extra battery, the lithium cell can supply the electric quantity to the battery in charging process, in addition, this enables equipment and continues to use at lithium battery module 2 that does not change automatic troubleshooting under the condition of 2 connected modes of lithium battery module, this equipment convenience that can promote equipment, also can guarantee lithium battery module 2's job stabilization nature simultaneously, in addition through getting rid of the lithium battery module 2 automation to the damage, maintenance cycle and the frequency that can promote equipment.
Referring to fig. 1 and 5, the winding assembly 16 includes a supporting plate 1601, a winding seat 1602 and a driving motor 1603, the winding seat 1602 is disposed inside the supporting plate 1601, the driving motor 1603 is disposed outside the winding seat 1602, the driving motor 1603 is in transmission connection with the winding seat 1602, and an outer surface of the winding seat 1602 is attached to an outer surface of the electrified wire 15;
in the following operation, the live wire 15 can be led out from the live wire slot at the top end of the fixed box body 1 and wound on the surface of the winding seat 1602, after the live wire 15 is wound, the residual length of the wire can be led out of the protective shell 14 to be connected with the external charging equipment, and when the equipment is used, if the distance between the electrified wire 15 and the charging equipment is too far, by pulling the electrified wire 15, the electrified wire 15 can drive the winding seat 1602 to rotate, and the live wire 15 wound on the surface of the winding seat 1602 is wound out, which makes it possible to increase the overall length of the live wire 15, so as to compensate the distance between the charging device and the charging device, if the distance of the external electrifying wire 15 is too long, the driving motor 1603 drives the winding base 1602 to rotate, so that the winding base 1602 can wind the overlong electrified wire 15, this can avoid the influence of electrified line 15 overlength to normally use, also can reduce electrified line 15 simultaneously and damage the probability.
Referring to fig. 1 and 4, the inflator pumps 18 are symmetrically distributed along the vertical center line of the fixing box body 1, the inflator pumps 18 are communicated with the protection airbags 19, the protection airbags 19 are connected with the fixing box body 1 in an adhesive manner, the protection airbags 19 are annularly distributed on the outer side of the fixing box body 1, the air extracting assembly 22 comprises an air extracting pump 2201, an air extracting pipe 2202 and an exhaust pipe 2203, the air extracting pipe 2202 is arranged on the outer side of the right part of the air extracting pump 2201, the exhaust pipe 2203 is connected to the outer side of the left part of the air extracting pump 2201, the air extracting pump 2201 is communicated with the fixing box body 1 through the air extracting pipe 2202, and the air extracting pump 2201 is connected with the fixing box body 1 through a fixing bolt;
the operation is as follows, work is carried out through the inflator pump 18, the protection airbag 19 can be inflated to be expanded, after the protection airbag 19 is expanded, a gap between the fixed box body 1 and the external installation space of the fixed box body can be made up, the fixed box body 1 can be filled with the external installation space, the installation stability of the fixed box body 1 can be improved, when external impact force is transmitted to the installation space where the equipment is located, the protection airbag 19 can absorb the impact force and avoid the direct transmission to the surface of the fixed box body 1, the protection performance and the working stability of the equipment can be improved, in addition, the baffle 17 made of flexible rubber materials at the outer end of the lithium battery module 2 can also carry out shock absorption protection on the lithium battery module 2, work is carried out through the air pump 2201, air in the fixed box body 1 can be pumped out from the air exhaust pipe 2202 and discharged from the air exhaust pipe 2203, and vacuum can be formed inside the fixed box body 1, under the vacuum environment, the interference of external factors to the lithium battery module 2 can be reduced, the working stability of the lithium battery module 2 can be improved, in addition, the vacuum environment is an oxygen-free environment, when the lithium battery module 2 is in short circuit, the oxygen-free environment can avoid the lithium battery module 2 from being ignited, the equipment has a better self-extinguishing function, meanwhile, the lithium battery module 2 can be prevented from being ignited and burning to cause larger loss, when the lithium battery module 2 works for a long time to generate more heat, the electric control valve 21 at the outer end of the communication pipe 20 can be opened, the protection air bag 19 can be communicated with the inside of the fixed box body 1, therefore, the inside of the fixed box body 1 is in a vacuum state, cold air in the protection air bag 19 can be rapidly filled into the inside of the fixed box body 1 to cool the fixed box body 1, after the cooling is completed, the air pump 2201 continues to work, residual high temperature and air can be discharged, this ensures that the lithium battery module 2 can operate at a lower temperature, while also enabling the interior of the stationary box 1 to resume a vacuum state.
To sum up, the lithium battery with the self-extinguishing structure is used, firstly, two lithium battery modules 2 are placed in a positive and negative direction, the positive and negative connecting ports 3 of the two lithium battery modules 2 are positioned at the same end, after the through circuit board 4 is connected with the positive and negative connecting ports 3 of the two lithium battery modules 2, the two lithium battery modules 2 can be electrically connected, the operation is repeated, the plurality of lithium battery modules 2 can be combined into a whole lithium battery, the assembled lithium battery is arranged on the inner side of the fixed box body 1, the general positive end and the general negative end of the lithium battery are connected with the electrifying wire 15, the electrifying wire 15 is led out of the fixed box body 1, and then the fixed box body 1 is sealed, so that the installation of the lithium battery can be realized;
then a detector in the lithium battery module 2 can test data such as the working state, current, voltage, resistance and the like of the lithium battery module 2, when the lithium battery is used, if a single lithium battery module 2 is damaged and cannot be used normally, the detector can detect the abnormal state of the lithium battery module 2, after the detection and judgment are abnormal, the lithium battery works through a micro motor 11 and can drive a lead screw 12 to rotate, in the rotating process of the lead screw 12, a sliding seat 9 can slide on the inner side of a sliding groove 10, two butt-joint seats 8 are in butt joint, and in the sliding process of the sliding seat 9, the limit can be performed through a limiting rod 13 so as to ensure the butt-joint stability between the two butt-joint seats 8;
then, after the two butt-joint seats 8 are in butt joint, the wiring boards 6 and the connecting wires 7 at the two ends of the top of the lithium battery module 2 can be communicated, so that the connecting port 3 at the left end can bypass the lithium battery module 2 to be directly electrically connected with the connecting port 3 at the right end, the situation that the subsequent lithium batteries in series cannot continue to supply power after the lithium battery modules 2 in series are damaged can be avoided, the micro motor 11 and the detector are both supplied with power by additional storage batteries, the lithium batteries can supplement the electric quantity to the storage batteries in the charging process, and in addition, the lithium battery module 2 which automatically eliminates faults can be continuously used under the condition that the connection mode of the lithium battery module 2 is not changed;
then, the electrified wire 15 can be led out from the electrified wire slot at the top end of the fixed box body 1 and wound on the surface of the winding seat 1602, after the electrified wire 15 is wound, the wire with the residual length can be led out of the protective shell 14 to be connected with external charging equipment, in the using process of the equipment, if the distance between the electrified wire 15 and the charging equipment is too far, the electrified wire 15 can be pulled to drive the winding seat 1602 to rotate and wind the electrified wire 15 wound on the surface of the winding seat 1602 out, so that the overall length of the electrified wire 15 can be increased to make up the distance between the electrified wire 15 and the charging equipment, and if the distance between the electrified wire 15 and the external charging equipment is too long, the winding seat 1602 is driven to rotate by the driving motor 1603, and the winding seat 1602 can wind the overlong electrified wire 15;
then, the protection airbag 19 can fill the protection airbag 19 with air to expand the protection airbag 19, after the protection airbag 19 expands, a gap between the fixed box body 1 and an external installation space of the fixed box body can be made up, so that the fixed box body 1 can fill the external installation space, the installation stability of the fixed box body 1 can be improved, when external impact force is transmitted to the installation space where equipment is located, the protection airbag 19 can absorb the impact force and avoid the direct transmission to the surface of the fixed box body 1, the protection performance and the working stability of the equipment can be improved, and in addition, the baffle 17 made of flexible rubber materials at the outer end of the lithium battery module 2 can also perform shock absorption protection on the lithium battery module 2;
afterwards, the air pump 2201 is used for working, air in the fixed box body 1 can be pumped out from the air pumping pipe 2202 and is exhausted from the exhaust pipe 2203, so that vacuum can be formed inside the fixed box body 1, the interference of external factors on the lithium battery module 2 can be reduced under the vacuum environment, the working stability of the lithium battery module 2 can be improved, in addition, the vacuum environment is an oxygen-free environment, when the lithium battery module 2 is in short circuit, the oxygen-free environment can avoid the ignition of the lithium battery module 2, the equipment has a good self-extinguishing function, and meanwhile, the larger loss caused by the ignition and delay of the lithium battery module 2 can be avoided;
at last when lithium battery module 2 works for a long time and produces more heat, the automatically controlled valve 21 of communicating pipe 20 outer end can be opened, this makes protective air bag 19 can be linked together with fixed box body 1's inside, consequently time fixed box body 1 is inside to be the vacuum form, this makes the cold air in the protective air bag 19 can pour into fixed box body 1 inside rapidly, cool down fixed box body 1, and the back is accomplished in the cooling, aspiration pump 2201 continues work, can be with remaining high temperature and air escape, this can guarantee that lithium battery module 2 can work with lower temperature, also can make fixed box body 1 inside vacuum form that resumes again simultaneously.

Claims (10)

1. A lithium battery with a self-extinguishing structure is characterized by comprising a fixed box body (1), a connection plate (5) and a protective air bag (19), wherein a lithium battery module (2) is arranged on the inner side of the fixed box body (1), connection ports (3) are arranged on two sides of the top of the lithium battery module (2), a through circuit board (4) is connected to the middle end of the outer side of each connection port (3), the connection plate (5) is arranged on the outer side of the bottom of each connection port (3), wiring boards (6) are arranged on two sides of the inner portion of the connection plate (5), a connecting wire (7) is arranged on one side, close to the vertical central line of the connection plate (5), of each wiring board (6), a butt joint seat (8) is connected to the tail end of each connecting wire (7), sliding seats (9) are arranged on two sides of the outer side of each butt joint seat (8), sliding grooves (10) are formed in two sides of the outer portion of the connection plate (5), the lithium battery module is characterized in that a micro motor (11) is connected to the outer side of the top of the lithium battery module (2), a lead screw (12) is arranged on the outer side of the micro motor (11), a limiting rod (13) is arranged on one side, away from the lead screw (12), of the connecting plate (5), a protective shell (14) is connected to the outer side of the top of the fixed box body (1), an electrified wire (15) is connected to the outer side of the connecting port (3), a winding assembly (16) is arranged on the right side of the inner portion of the protective shell (14), a baffle (17) is wound on the outer side surface of the lithium battery module (2), inflation pumps (18) are arranged on two sides of the bottom of the fixed box body (1), a protective air bag (19) is connected to the outer side surface of the fixed box body (1), a communicating pipe (20) is connected to one side, close to the fixed box body (1), and an electronic control valve (21) is arranged on the outer side of the communicating pipe (20), and an air exhaust assembly (22) is arranged at the middle end of the top of the fixed box body (1).
2. A lithium battery having a self-extinguishing structure, according to claim 1, characterized in that said connection port (3) is electrically connected to the passage plate (4) and the connection port (3) is electrically connected to the terminal plate (6).
3. A lithium battery with a self-extinguishing structure according to claim 1, characterized in that the sliding seats (9) are symmetrically distributed along the vertical center line of the docking seat (8), and the sliding seats (9) form a sliding structure through the sliding groove (10).
4. The lithium battery with the self-extinguishing structure according to claim 1, wherein the micro motor (11) is in transmission connection with a lead screw (12), and the lead screw (12) and the limiting rod (13) are distributed in parallel.
5. A lithium battery with a self-extinguishing structure according to claim 1, characterized in that the winding assembly (16) comprises a supporting plate (1601), a winding seat (1602) and a driving motor (1603), the winding seat (1602) is arranged inside the supporting plate (1601) and the driving motor (1603) is arranged outside the winding seat (1602).
6. A lithium battery with a self-extinguishing structure according to claim 5, characterized in that the driving motor (1603) is in transmission connection with the winding base (1602), and the outer surface of the winding base (1602) is attached to the outer surface of the live wire (15).
7. A lithium battery with a self-extinguishing structure, according to claim 1, characterized in that the inflator pumps (18) are symmetrically distributed along the vertical center line of the fixed box body (1), and the inflator pumps (18) and the protective air bags (19) are communicated with each other.
8. The lithium battery with the self-extinguishing structure according to claim 1, wherein the protective air bag (19) is connected with the fixing box body (1) in an adhesive manner, and the protective air bag (19) is annularly distributed on the outer side of the fixing box body (1).
9. The lithium battery with the self-extinguishing structure according to claim 1, wherein the air extraction assembly (22) comprises an air extraction pump (2201), an air extraction pipe (2202) and an exhaust pipe (2203), the air extraction pipe (2202) is arranged on the outer side of the right part of the air extraction pump (2201), and the exhaust pipe (2203) is connected to the outer side of the left part of the air extraction pump (2201).
10. The lithium battery with self-extinguishing structure according to claim 9, wherein the air pump (2201) is communicated with the fixed box body (1) through an air exhaust pipe (2202), and the air pump (2201) is connected with the fixed box body (1) through a fixed bolt.
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