CN114122548B - Lithium battery with self-extinguishing structure - Google Patents

Lithium battery with self-extinguishing structure Download PDF

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Publication number
CN114122548B
CN114122548B CN202111423653.7A CN202111423653A CN114122548B CN 114122548 B CN114122548 B CN 114122548B CN 202111423653 A CN202111423653 A CN 202111423653A CN 114122548 B CN114122548 B CN 114122548B
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lithium battery
box body
fixed box
battery module
outside
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CN114122548A (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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Emergency Management (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Hybrid Cells (AREA)
  • Battery Mounting, Suspending (AREA)

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 bridging plate and a protective airbag, 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, a passage plate is connected to the middle end of the outer side of the connecting port, and the bridging plate is arranged on the outer side of the bottom of the connecting port. In the use process of the lithium battery, if a single lithium battery module is damaged and cannot be used normally, the detector can detect the abnormal state of the lithium battery module, the miniature motor works and can drive the screw rod to rotate, the sliding seat slides on the inner side of the sliding groove and the two butt seats are in butt joint in the rotating process of the screw rod, the wiring boards at the two ends of the top of the lithium battery module are communicated with the communication line, and therefore the connecting port at the left end bypasses the lithium battery module and is directly electrically connected with the connecting port at the right end.

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
Lithium batteries are a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a positive/negative electrode material. The chemical characteristics of lithium metal are very active, so that the processing, storage and use of lithium metal have very high requirements on environment, and along with the development of science and technology, lithium batteries have become the mainstream of power storage batteries.
The lithium battery for electric vehicle in market is usually formed by connecting and splicing a plurality of lithium battery modules in series, because the lithium battery modules are connected in series, if a single lithium battery module is damaged in the long-time use process, the subsequent lithium battery in series cannot continue to supply power, which can lead to the great reduction of the storage capacity of the lithium battery and the need of frequently maintaining and replacing the damaged lithium battery.
Disclosure of Invention
The invention aims to provide a lithium battery with a self-extinguishing structure, so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a lithium cell with from fire extinguishing structure, includes fixed box body, crosses fishplate bar and protection gasbag, the inboard of fixed box body is settled there is lithium cell module, and the top both sides of lithium cell module are provided with the connecting port, the top outside of connecting port is connected with the access board, and the bottom outside of connecting port is provided with crosses the fishplate bar, the inside both sides of crossing the fishplate bar are provided with the wiring board, and the wiring board is close to the vertical central line one side of crossing the fishplate bar and be provided with the intercommunication line, the end-to-end connection of intercommunication line has the butt joint seat, the outside both sides of butt joint seat are provided with the sliding seat, the spout has been seted up to the outside both sides of crossing the fishplate bar, the top outside of lithium cell module is connected with micro motor, and micro motor's outside is provided with the lead screw, it is provided with the gag lever post to cross the top outside of leading to get away from lead screw one side, the outside of connecting port is connected with the protection casing, the inside right side of protection casing is provided with wire winding subassembly, the outside surface of lithium cell module encircles there is the baffle, the bottom both sides of fixed box body are provided with the charge pump, the end-to-up pump, the end connection is provided with the air pump in the outside of the fixed box body, the outside is close to the outside of the fixed connection in the valve body, and is provided with the outside of connecting box.
Preferably, the connection port is electrically connected with the access 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 opposite seat, and the sliding seats form a sliding structure through the sliding grooves.
Preferably, the miniature motor is connected with a screw rod in a transmission way, and the screw rod and the limiting rod are distributed in a parallel way.
Preferably, the winding assembly comprises a supporting plate, a winding seat and a driving motor, wherein 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 center line of the fixed box body, and the inflator pumps are communicated with the protective air bags.
Preferably, the protection air bags are in adhesive connection with the fixed box body, and the protection air bags are annularly distributed outside the fixed box body.
Preferably, the air extraction assembly comprises an air extraction pump, an air extraction pipe and an exhaust pipe, wherein 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 with 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 extracting pipe, and the air pump is connected with the fixed box body through a fixed bolt.
The invention provides a lithium battery with a self-extinguishing structure, which has the following beneficial effects: the wiring board and the communication line at both ends at the top of the lithium battery module are communicated, the connecting port at the left end can be electrically connected with the connecting port at the right end directly by bypassing the lithium battery module, the situation that the subsequent lithium batteries connected in series cannot continue to supply power after the lithium battery module connected in series is damaged can be avoided, the electric control valve 21 is opened, the protective airbag 19 can be communicated with the inside of the fixed box body 1, and the inside of the fixed box body 1 is in a vacuum state, so that cold air in the protective airbag 19 can be rapidly poured into the inside of the fixed box body 1 to cool the fixed box body 1.
1. In the use process of the lithium battery, if a single lithium battery module is damaged and cannot be used normally, the detector can detect the abnormal state of the lithium battery module, the miniature motor works and can drive the screw rod to rotate, in the rotating process of the screw rod, the sliding seat can slide on the inner side of the sliding groove, and the two butt seats are in butt joint, so that the wiring boards at the two ends of the top of the lithium battery module are communicated with the communication line, the connection port at the left end bypasses the lithium battery module and is directly and electrically connected with the connection port at the right end, and the situation that after the lithium battery module connected in series is damaged, the subsequent lithium batteries connected in series cannot continue to supply power can be avoided.
2. If the distance between the power-on wire and the charging equipment is too far, the power-on wire can drive the winding seat to rotate by pulling the power-on wire, and the power-on wire wound on the surface of the winding seat is wound out, so that the whole length of the power-on wire can be increased to compensate the distance between the power-on wire and the charging equipment, and if the external power-on wire is too far, the driving motor drives the winding seat to rotate, so that the winding seat can wind the too-long power-on wire, the normal use is prevented from being influenced by the too-long power-on wire length, and meanwhile, the damage probability of the power-on wire is reduced.
3. The invention works through the inflator pump, can inflate the protective air bag to expand, after the protective air bag is inflated, the gap between the fixed box body and the external arrangement space can be made up, the fixed box body can be filled with the external arrangement space, the arrangement stability of the fixed box body can be improved, when the external impact force is transmitted to the arrangement space where the equipment is located, the protective air bag can absorb the impact force, and the direct transmission to the surface of the fixed box body is avoided, so that the protection performance and the working stability of the equipment can be improved.
4. According to the invention, the air in the fixed box body can be pumped out from the air pumping pipe and discharged from the air exhausting pipe through the air pumping pump, so that vacuum can be formed in the fixed box body, 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 igniting, the equipment has a better self-extinguishing function, and meanwhile, larger loss caused by ignition and ignition of the lithium battery module can be avoided.
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 can be opened, so that the protective air bag 19 can be communicated with the inside of the fixed box body 1, and therefore, the inside of the fixed box body 1 is in a vacuum state, cold air in the protective air bag 19 can be quickly poured into the inside of the fixed box body 1 to cool the fixed box body 1, and after the cooling is finished, the air pump 2201 continues to work, residual high temperature and air can be discharged, the lithium battery module 2 can be ensured to work at a lower temperature, and meanwhile, the inside of the fixed box body 1 can be restored to the vacuum state again.
Drawings
Fig. 1 is a schematic diagram showing the whole structure of a lithium battery with a self-extinguishing structure in front view;
fig. 2 is a schematic top view of a lithium battery module with a self-extinguishing structure according to the present invention;
FIG. 3 is an enlarged schematic view of the structure of the lithium battery of FIG. 2A with a self-extinguishing structure according to the present invention;
FIG. 4 is a schematic diagram of the overall top view of a lithium battery with a self-extinguishing structure according to the present invention;
fig. 5 is a schematic structural diagram of a winding assembly of a lithium battery with 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 passage plate; 5. a connecting plate is crossed; 6. a wiring board; 7. a communication line; 8. a butt joint seat; 9. a sliding seat; 10. a chute; 11. a micro motor; 12. a screw rod; 13. a limit rod; 14. a protective housing; 15. a power-on wire; 16. a winding assembly; 1601. a support plate; 1602. a winding seat; 1603. a driving motor; 17. a baffle; 18. an inflator pump; 19. a protective airbag; 20. a communicating pipe; 21. an electric control valve; 22. an air extraction assembly; 2201. an air extracting pump; 2202. an exhaust pipe; 2203. and an exhaust pipe.
Detailed Description
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a lithium cell with from fire extinguishing structure, including fixed box body 1, cross fishplate bar 5 and protection gasbag 19, the inboard of fixed box body 1 is settled there is lithium cell module 2, and the top both sides of lithium cell module 2 are provided with connecting port 3, the outside middle-end of connecting port 3 is connected with access plate 4, and the bottom outside of connecting port 3 is provided with and crosses fishplate bar 5, the inside both sides of crossing fishplate bar 5 are provided with wiring board 6, and wiring board 6 is close to and cross fishplate bar 5 vertical central line one side and be provided with intercommunication line 7, the end-to-end connection of intercommunication line 7 has butt joint seat 8, the outside both sides of butt joint seat 8 are provided with sliding seat 9, spout 10 has been seted up to the outside both sides of crossing fishplate bar 5, the top outside of lithium cell module 2 is connected with micro motor 11, and the outside of micro motor 11 is provided with lead screw 12, it is provided with gag lever post 13 to cross fishplate bar 12 one side of being away from the lead screw 12, the top outside of fixed box body 1 is connected with protection casing 14, the outside of connecting port 3 is connected with circular telegram line 15, the inside right side of protection casing 14 is provided with subassembly 16, the outside surface of lithium cell module 2 encircles baffle 17, the bottom both sides of fixed box body 1 are provided with intercommunication line 7, the bottom both sides are provided with intercommunication line 19, the outside of protection box 1 is provided with the face-to be provided with the air pump assembly 20 in the electric control box 1, the top is provided with the side of protection casing 20, the top is close to the top of the protection box 1, the top is provided with the side of the protection casing 20.
Referring to fig. 1-3, a connection port 3 is electrically connected with a channel plate 4, the connection port 3 is electrically connected with a wiring board 6, sliding seats 9 are symmetrically distributed along the vertical center line of a butt joint seat 8, the sliding seats 9 form a sliding structure through sliding grooves 10, a micro motor 11 is in transmission connection with a lead screw 12, and the lead screw 12 is parallel to a limiting rod 13;
the method comprises arranging two lithium battery modules 2 one on top of the other, connecting the two lithium battery modules 2 on the other, connecting the positive and negative electrode connection ports 3 of the two lithium battery modules 2 to each other, connecting the passage plate 4 with the positive and negative electrode connection ports 3 of the two lithium battery modules 2, electrically connecting the two lithium battery modules 2, repeating the operation, combining the lithium battery modules 2 into a whole lithium battery, arranging the assembled lithium battery on the inner side of the fixed box 1, connecting the power-on wire 15 on the total positive and negative ends of the lithium battery, sealing the fixed box 1 after the power-on wire 15 is led out of the fixed box 1, and testing the working state and current-voltage resistance of the lithium battery module 2, in the use process of the lithium battery, 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 miniature motor 11 works and can drive the screw rod 12 to rotate, in the rotating process of the screw rod 12, the sliding seat 9 can slide on the inner side of the sliding groove 10 and enable the two butt joint seats 8 to butt joint, in the sliding process of the sliding seat 9, the limiting rod 13 can be used for limiting so as 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 finished, the wiring boards 6 at the two ends of the top of the lithium battery module 2 are communicated with the communication line 7, so that the connecting port 3 at the left end bypasses the lithium battery module 2 to be directly electrically connected with the connecting port 3 at the right end, after the damage of the lithium battery module 2 connected in series can be avoided, the situation that the subsequent lithium batteries connected in series cannot continue to supply power is caused, the miniature motor 11 and the detector are powered by the additional storage battery, the lithium batteries can supplement electric quantity to the storage battery in the charging process, in addition, the lithium battery module 2 capable of automatically removing faults under the condition that the connection mode of the lithium battery module 2 is not changed can be used continuously, the assembly convenience of the equipment can be improved, meanwhile, the working stability of the lithium battery module 2 can be guaranteed, and in addition, the maintenance period and the frequency of the equipment can be improved through automatically removing the damaged lithium battery module 2.
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 on the inner side of the supporting plate 1601, the driving motor 1603 is disposed on the outer side of the winding seat 1602, the driving motor 1603 is in driving connection with the winding seat 1602, and the outer surface of the winding seat 1602 is attached to the outer surface of the power line 15;
the specific operation is as follows, the circular telegram line 15 can be derived from the wire through groove on fixed box body 1 top to twine on the surface of wire holder 1602, after the circular telegram line 15 twines and accomplish, can lead out the line of surplus length and protect casing 14 and external battery charging outfit to be connected, equipment in the use, if the wire 15 is too far away with the battery charging outfit, through pulling wire 15, can make wire 15 drive wire holder 1602 rotate, and make wire holder 1602 surface winding wire 15 wind out, this makes wire 15's overall length can obtain promoting, so as to compensate the distance with battery charging outfit, if when wire 15 is too far away at the external, drive wire holder 1602 rotation through driving motor 1603, can make wire holder 1602 wind wire 15 overlength, this can avoid wire 15 overlength to influence normal use, and also can reduce wire 15 damage probability simultaneously.
Referring to fig. 1 and 4, the inflator 18 is symmetrically distributed along the vertical center line of the fixed box 1, the inflator 18 and the protective airbag 19 are mutually communicated, the protective airbag 19 is in adhesive connection with the fixed box 1, the protective airbag 19 is annularly distributed outside the fixed box 1, 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 outside the right part of the air extraction pump 2201, the exhaust pipe 2203 is connected outside the left part of the air extraction pump 2201, the air extraction pump 2201 is communicated with the fixed box 1 through the air extraction pipe 2202, and the air extraction pump 2201 is connected with the fixed box 1 through a fixing bolt;
the operation is that the protection air bag 19 is inflated by the air pump 18 to expand, the protection air bag 19 can make up the gap between the fixed box body 1 and the external installation space after being inflated, 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 the external impact force is transmitted to the installation space where the equipment is located, the protection air bag 19 can absorb the impact force to avoid being directly transmitted 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 outer end of the lithium battery module 2 adopts the baffle 17 made of flexible rubber material to absorb and protect the lithium battery module 2, the operation is carried out by the air pump 2201, the air in the fixed box body 1 can be pumped out from the air pumping pipe 2202 and is discharged from the exhaust pipe 2203, the inside of the fixed box body 1 can form vacuum, in the vacuum environment, the interference of external factors on 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 ignition of the lithium battery module 2, so that the equipment has a better self-extinguishing function, meanwhile, the equipment can also avoid larger loss caused by the ignition and the burning of the lithium battery module 2, 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 can be opened, 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 when the protective air bag 19 can be rapidly filled into the inside of the fixed box body 1, the fixed box body 1 is cooled, and the air pump 2201 continues to work after the cooling is finished, the residual high temperature and the air can be exhausted, which can ensure that the lithium battery module 2 can operate at a lower temperature, and can also restore the vacuum state inside the fixed case 1.
In summary, when the lithium battery with the self-extinguishing structure is used, firstly, the two lithium battery modules 2 are placed in a positive-negative way, so that the positive and negative connecting ports 3 of the two lithium battery modules 2 are positioned at the same end, after the passage plate 4 is connected with the positive and negative connecting ports 3 of the two lithium battery modules 2, the two lithium battery modules 2 are 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 power-on wire 15 is connected to the total positive end and the total negative end of the lithium battery, and then the fixed box body 1 is sealed after the power-on wire 15 is led out of the fixed box body 1, so that the installation of the lithium battery can be realized;
then the detector in the lithium battery module 2 can test the working state of the lithium battery module 2, current and voltage resistance and other data, if a single lithium battery module 2 is damaged and can not be normally used in the use process of the lithium battery, the detector can detect the abnormal state of the lithium battery module 2, after the detection and judgment are abnormal, the detector works through the micro motor 11 and can drive the screw rod 12 to rotate, in the rotating process of the screw rod 12, the sliding seat 9 can slide on the inner side of the sliding chute 10 and the two butt joint seats 8 are in butt joint, and in the sliding process of the sliding seat 9, the limiting rod 13 can limit the sliding seat to ensure the butt joint stability between the two butt joint seats 8;
then after the butt joint of the two butt joint seats 8 is finished, the wiring boards 6 at the two ends of the top of the lithium battery module 2 are communicated with the communication line 7, so that the connection port 3 at the left end bypasses the lithium battery module 2 to be directly electrically connected with the connection port 3 at the right end, the situation that after the lithium battery module 2 is damaged in series, the subsequent lithium batteries connected in series cannot continue to supply power can be avoided, the miniature motor 11 and the detector are powered by an extra storage battery, the storage battery can be supplemented with electric quantity in the charging process by the lithium battery, and in addition, the equipment can automatically remove the fault lithium battery module 2 to continue to be used under the condition that the connection mode of the lithium battery module 2 is not changed;
the power-on wire 15 can be led out from the power-on slot at the top end of the fixed box body 1 and wound on the surface of the winding seat 1602, after the winding of the power-on wire 15 is completed, the wire with the residual length can be led out of the protective shell 14 to be connected with external charging equipment, in the use process of the device, if the distance between the power-on wire 15 and the charging equipment is too far, the power-on wire 15 can be pulled to drive the winding seat 1602 to rotate, the power-on wire 15 wound on the surface of the winding seat 1602 can be wound out, the whole length of the power-on wire 15 can be lifted so as to compensate the distance between the power-on wire 15 and the charging equipment, and if the distance between the power-on wire 15 and the external charging equipment is too far, the power-on wire 15 can be wound by the winding seat 1602 through the driving motor 1603 to rotate;
then, the air pump 18 is used for working, the protective air bag 19 can be inflated to expand the protective air bag, after the protective air bag 19 is inflated, gaps between the fixed box body 1 and the external installation space can be filled, the external installation space can be filled with the fixed box body 1, the installation stability of the fixed box body 1 can be improved, when the external impact force is transmitted to the installation space where the equipment is located, the protective air bag 19 can absorb the impact force, and the direct transmission to the surface of the fixed box body 1 is avoided, so that the protection performance and the working stability of the equipment can be improved, and in addition, the outer end of the lithium battery module 2 can also be subjected to shock absorption protection by adopting the baffle 17 made of flexible rubber material;
then, the air in the fixed box body 1 can be pumped out from the air pumping pipe 2202 and discharged from the air discharging pipe 2203 through the air pumping pump 2201, so that vacuum can be formed in the fixed box body 1, 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 a short circuit, the oxygen-free environment can prevent the lithium battery module 2 from firing, the equipment has a good self-extinguishing function, and meanwhile, larger loss caused by firing and delay of the lithium battery module 2 can be avoided;
finally, 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 can be opened, so that the protective air bag 19 can be communicated with the inside of the fixed box body 1, and the inside of the fixed box body 1 is in a vacuum state, so that cold air in the protective air bag 19 can be quickly filled into the inside of the fixed box body 1 to cool the fixed box body 1, and after cooling is finished, the air pump 2201 continues to work, residual high temperature and air can be discharged, the lithium battery module 2 can be ensured to work at a lower temperature, and meanwhile, the inside of the fixed box body 1 can be restored to the vacuum state again.

Claims (7)

1. The utility model provides a lithium battery with from fire extinguishing structure, its characterized in that, including fixed box body (1), cross fishplate bar (5) and protection gasbag (19), lithium battery module (2) are settled to the inboard of fixed box body (1), and the top both sides of lithium battery module (2) are provided with connecting port (3), the outside middle-end of connecting port (3) is connected with access board (4), and the bottom outside of connecting port (3) is provided with crosses fishplate bar (5), the inside both sides of crossing fishplate bar (5) are provided with wiring board (6), and wiring board (6) are close to vertical central line one side of crossing fishplate bar (5) and are provided with intercommunication line (7), the end-to-end connection of intercommunication line (7) has butt joint seat (8), the outside both sides of butt joint seat (8) are provided with sliding seat (9), spout (10) have been seted up to the outside both sides of crossing fishplate bar (5), the top outside of lithium battery module (2) is connected with micro motor (11), and the outside of micro motor (11) is provided with lead screw (12), cross fishplate bar (5) one side is kept away from vertical central line one side of fishplate bar (5) and is provided with intercommunication line (13), the outside of connecting box (14) is settled outside (13), the right side of the inside of the protection shell (14) is provided with a winding component (16), the outer side surface of the lithium battery module (2) is surrounded with a baffle plate (17), two sides of the bottom of the fixed box body (1) are provided with an inflator pump (18), the protection air bag (19) is connected with the outer side surface of the fixed box body (1), one side of the protection air bag (19) close to the fixed box body (1) is connected with a communicating pipe (20), the outer side of the communicating pipe (20) is provided with an electric control valve (21), the middle end of the top of the fixed box body (1) is provided with an air extraction component (22), the connecting port (3) is electrically connected with a passage plate (4), the connecting port (3) is electrically connected with the wiring board (6), the sliding seats (9) are symmetrically distributed along the vertical center line of the butt joint seat (8), the sliding seats (9) form a sliding structure through the sliding grooves (10), the miniature motor (11) is in transmission connection with the lead screw (12), the lead screw (12) and the limiting rod (13) are in parallel distribution, the connecting port at the top end of the lithium battery module (2) is left, right and negative, the two lithium battery modules (2) are placed in a positive-negative mode, the positive-negative connecting port (3) of the two lithium battery modules (2) can be positioned at the same end, after the access board (4) is connected with the positive and negative electrode 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, and the assembled lithium battery is arranged at the inner side of the fixed box body (1).
2. The lithium battery with a self-extinguishing structure according to claim 1, wherein the winding assembly (16) comprises a support plate (1601), a winding seat (1602) and a driving motor (1603), the winding seat (1602) is arranged on the inner side of the support plate (1601), and the driving motor (1603) is arranged on the outer side of the winding seat (1602).
3. The lithium battery with the self-extinguishing structure according to claim 2, wherein the driving motor (1603) is in transmission connection with the winding seat (1602), and the outer surface of the winding seat (1602) is attached to the outer surface of the energizing line (15).
4. The lithium battery with the self-extinguishing structure according to claim 1, wherein the inflator pumps (18) are symmetrically distributed along the vertical center line of the fixed box body (1), and the inflator pumps (18) are communicated with the protective air bag (19).
5. The lithium battery with the self-extinguishing structure according to claim 1, wherein the protection air bags (19) are in adhesive connection with the fixed box body (1), and the protection air bags (19) are annularly distributed outside the fixed box body (1).
6. The lithium battery with a 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 on the outer side of the left part of the air extraction pump (2201).
7. The lithium battery with the self-extinguishing structure according to claim 6, wherein the air pump (2201) is communicated with the fixed box body (1) through an air pump pipe (2202), and the air pump (2201) is connected with the fixed box body (1) through a fixing bolt.
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