CN115411446A - Multi-protection lithium ion battery and protection method thereof - Google Patents
Multi-protection lithium ion battery and protection method thereof Download PDFInfo
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- CN115411446A CN115411446A CN202211257983.8A CN202211257983A CN115411446A CN 115411446 A CN115411446 A CN 115411446A CN 202211257983 A CN202211257983 A CN 202211257983A CN 115411446 A CN115411446 A CN 115411446A
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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
- 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
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
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- 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
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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
- 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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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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
- 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
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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
- 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
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
- H01M50/293—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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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- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a multi-protection lithium ion battery and a protection method thereof, and particularly relates to the technical field of lithium ion batteries, wherein the multi-protection lithium ion battery comprises a protection outer frame, a seal cover is fixedly arranged at the top end of the protection outer frame through screws, a transverse partition plate is fixedly clamped in the protection outer frame, a longitudinal partition plate is vertically connected to the middle of the transverse partition plate, the longitudinal partition plate is fixedly clamped in the protection outer frame, the transverse partition plate and the longitudinal partition plate divide the space in the protection outer frame into a plurality of object placing cavities, battery packs are fixedly arranged in the object placing cavities, and fire extinguishing members corresponding to the number of the object placing cavities are fixedly arranged on the lower surface of the seal cover.
Description
Technical Field
The invention relates to the technical field of lithium ion batteries, in particular to a lithium ion battery with multiple protections and a protection method thereof.
Background
A lithium ion battery is a secondary battery (rechargeable battery) that mainly operates by movement of lithium ions between a positive electrode and a negative electrode. During charging and discharging, li + Intercalation and deintercalation to and from two electrodes: upon charging, li + The lithium ion battery is extracted from the positive electrode and is inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; when discharging, the lithium ion battery has the advantages of high energy density, high average output voltage, small self-discharge, no memory effect, excellent cycle performance, rapid charge and discharge, high output power, long service life and no toxic and harmful substances, and is called as a green battery, and the charging efficiency is up to 100%. The electric tool is mainly applied to electric automobiles, electric vehicles, aerospace, electronic products or electric tools;
the lithium ion battery for the electric automobile mostly adopts a mode of assembling a plurality of battery packs for use, but a protection piece is lacked between the battery packs, the protection property is lower, and the spontaneous combustion phenomenon is easy to occur, so that the battery is damaged, the safety of a user is influenced, and the user is damaged.
Disclosure of Invention
The present invention provides a multiple protection lithium ion battery and a protection method thereof, so as to solve the problems proposed in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a lithium ion battery of multiple protection, includes the protection frame, there is the closing cap on the top of protection frame through screw fixed mounting, the fixing clip is equipped with the cross slab in the protection frame, the middle part of cross slab is connected with the longitudinal baffle perpendicularly, the longitudinal baffle fixing clip is in the protection frame, space separation in the frame will be protected to cross slab, longitudinal baffle is a plurality of thing cavitys of putting, it all fixes being equipped with the group battery in the thing cavity to put, the lower fixed surface of closing cap installs and puts the piece of putting out a fire that thing cavity quantity corresponds, the bottom fixed mounting of closing cap has sealed frame, sealed frame activity joint is on the top of protection frame, cross slab, longitudinal baffle.
As a preferred technical solution of the present invention, both end portions of the horizontal partition plate and the vertical partition plate extend to an outer wall of the protective outer frame, a plurality of protrusions are uniformly formed on outer surfaces of the horizontal partition plate and the vertical partition plate, the horizontal partition plate, the vertical partition plate and the plurality of protrusions are made of a heat conducting material, and a plurality of ventilation slots are uniformly distributed in the horizontal partition plate and the vertical partition plate.
As a preferred technical scheme of the invention, the outer surfaces of the transverse partition plate and the longitudinal partition plate are respectively fixedly clamped with a first flame-retardant pad, the inner side of the protective outer frame is fixedly clamped with a second flame-retardant pad, and the first flame-retardant pad, the second flame-retardant pad and the inner wall of the corresponding storage cavity are attached.
According to a preferable technical scheme, the fire extinguishing part comprises a liquid storage frame, the liquid storage frame is fixedly arranged on the lower surface of a sealing cover, the liquid storage frame is movably clamped at the top of a corresponding object placing cavity, a liquid storage cavity is formed in the top of the liquid storage frame, a liquid sealing cover is installed on the top of the liquid storage cavity in a threaded mode, two rotating cavities which are symmetrically distributed are formed in the bottom of the liquid storage frame, a rotating shaft is fixedly installed in the middle of each rotating cavity, a liquid control disc is rotatably sleeved on the outer side of the rotating shaft and movably clamped in the corresponding rotating cavity, a plurality of liquid drainage longitudinal grooves which are distributed in an annular array mode are formed in the bottom end of the liquid storage frame at the position of each rotating cavity, the liquid drainage longitudinal grooves penetrate through the rotating cavities movably, the top of each liquid drainage longitudinal groove is communicated with the liquid storage cavity, and liquid dredging longitudinal grooves matched with the liquid drainage longitudinal grooves are formed in the liquid control disc.
According to a preferable technical scheme of the invention, gear rings are fixedly sleeved on the outer sides of the liquid control disks, a rack is slidably clamped on one side of the bottom of the liquid storage frame close to the gear rings, one side of the rack is meshed and connected with the outer sides of the gear rings, a micro telescopic rod is fixedly clamped on one side of the liquid storage frame close to the rack, and the driving end of the micro telescopic rod is fixedly connected with the end part of the rack.
As a preferred technical scheme of the invention, two pressure control sliding grooves are symmetrically distributed on one side of the diaphragm plate close to the bottom ventilation groove, a pressure control sealing plate is arranged in each pressure control sliding groove in a sliding clamp manner, a plurality of liquid through grooves are equidistantly distributed on the outer side of the diaphragm plate close to the bottom ventilation groove, the liquid through grooves movably penetrate through the pressure control sliding grooves and are mutually communicated with the bottom ventilation groove, and pressure control through grooves matched with the liquid through grooves are formed in the pressure control sealing plate.
As a preferable technical scheme of the invention, a driving frame is vertically installed in the middle of the top end of the pressure control sealing plate, the driving frame is slidably clamped in a transverse partition plate, a driving plate is vertically installed at the top of the driving frame, the driving plate is slidably clamped on the transverse partition plate, and one side of the driving plate, which is far away from the driving frame, extends into the storage cavity.
As a preferred technical scheme of the present invention, a driving clip column is fixedly installed in the middle of the bottom end of the rack, a sliding groove corresponding to the driving clip column is formed in the bottom end of the liquid storage frame, the driving clip column is slidably clamped in the corresponding sliding groove, the bottom of the driving clip column extends out of the lower surface of the driving clip column, a driving clamping groove corresponding to the driving clip column is formed in the top end of the driving plate, and the bottom of the driving clip column is movably clamped in the driving clamping groove.
As a preferable technical scheme of the invention, protective pads are fixedly arranged at four corners of the bottom end of the liquid storage frame, and the bottom ends of the protective pads are in contact with the upper surface of the battery pack.
A protection method of a multi-protection lithium ion battery comprises the following steps:
the method comprises the following steps that firstly, a transverse partition plate and a longitudinal partition plate are installed in a protection outer frame, the transverse partition plate and the longitudinal partition plate divide the space in the protection outer frame into a plurality of storage cavities, a first flame-retardant pad and a second flame-retardant pad are installed in the storage cavities, then a plurality of battery packs are placed in each storage cavity in a separated mode, separation protection among the plurality of battery packs is conducted, influence among the plurality of battery packs is prevented, then a sealing cover is fixedly installed at the top end of the protection outer frame through screws, a sealing frame is movably clamped at the top ends of the protection outer frame, the transverse partition plate and the longitudinal partition plate, each storage cavity is sealed, the plurality of battery packs which are separated and protected are prevented from being influenced by external environment, a liquid storage frame is movably clamped at the top of the corresponding storage cavity, the bottom of a driving clamping column is movably clamped at a driving clamping groove, the bottom end of the protection pad is in contact with the upper surface of each battery pack, and the upper end of each battery pack is positioned;
secondly, heat is generated when the plurality of battery packs are used subsequently, the transverse partition plate and the longitudinal partition plate which are made of heat conducting materials conduct heat conduction and heat dissipation on the temperature in each storage cavity, the plurality of battery packs are prevented from being damaged due to overheating, the plurality of battery packs are protected, the heat dissipation area of the temperature in the storage cavity is increased by arranging the plurality of bulges, and through the plurality of ventilation grooves, airflow can conveniently conduct heat conduction and heat dissipation on the transverse partition plate and the longitudinal partition plate through the plurality of ventilation grooves, so that the heat conduction and heat dissipation effects of the transverse partition plate and the longitudinal partition plate on the temperature in each storage cavity are improved;
when the battery pack in one of the storage cavities is damaged and spontaneously ignites, the first flame-retardant pad and the second flame-retardant pad can effectively block combustion, so that the battery packs in other storage cavities are prevented from being influenced, and a plurality of battery packs are protected;
meanwhile, the corresponding micro telescopic rods are controlled and opened, the driving rack slides in the liquid storage frame, the driving clamping columns are driven to drive the driving plate, the driving frame synchronously and horizontally moves, the driving pressure control sealing plate slides in the pressure control sliding grooves, the pressure control penetrating grooves correspond to the liquid through penetrating grooves in position, at the moment, the space in the storage cavity is communicated with the bottom ventilating grooves, two toothed rings are synchronously driven to rotate, the liquid control plate is driven to stably rotate in the corresponding rotating cavity, the liquid dredging longitudinal grooves on the corresponding liquid control plate correspond to the liquid drainage longitudinal grooves in position, the explosion-proof fire extinguishing liquid in the corresponding liquid storage cavity can be discharged through the liquid drainage longitudinal grooves and the liquid dredging longitudinal grooves, flows into the corresponding storage cavity, the battery pack which is spontaneously combusted in the storage cavity is subjected to explosion-proof fire extinguishing, the battery packs in other storage cavities are prevented from being influenced, a plurality of battery packs are protected, and the explosion-proof fire extinguishing liquid flowing into the storage cavity is discharged through the pressure control penetrating grooves, the liquid through penetrating grooves and the bottom ventilating grooves.
Compared with the prior art, the invention has the beneficial effects that:
1. the transverse partition plates and the longitudinal partition plates are arranged to divide the space in the protective outer frame into a plurality of object placing cavities, so that a plurality of battery packs can be conveniently placed in a separated mode, separation protection among the plurality of battery packs is performed, influence among the plurality of battery packs is prevented, and the using effect of the whole lithium ion battery is improved;
2. the cooperation is used first fire-retardant pad, the fire-retardant pad of second, put the impaired spontaneous combustion of group battery in the thing cavity when one of them, first fire-retardant pad, the fire-retardant pad of second can effectively the separation burning, prevent that other group batteries of putting in the thing cavity from receiving the influence, protect a plurality of group batteries, the piece of putting out a fire is used in the cooperation simultaneously, the control explosion-proof fire-extinguishing fluid flows into corresponding putting in the thing cavity, carry out explosion-proof fire extinguishing to this group battery of spontaneous combustion in putting the thing cavity, prevent that other group batteries of putting in the thing cavity from receiving the influence, protect a plurality of group batteries.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the present invention,
figure 2 is a schematic view of the structure of the present invention after detachment,
FIG. 3 is a schematic view showing the structural connection between the protective outer frame and the horizontal and vertical partitions,
figure 4 is a schematic view of the structural connection of the extinguishing member according to the present invention,
figure 5 is another structural connection diagram of the fire extinguishing member of the present invention,
figure 6 is an enlarged view of the invention at a in figure 5,
FIG. 7 is a schematic view showing the structural connection between the diaphragms and the longitudinal diaphragms in the present invention,
figure 8 is an enlarged view of the invention at B in figure 7,
fig. 9 is an enlarged view of the invention at C in fig. 7.
In the figure: 1. a protective outer frame; 2. sealing the cover; 3. a diaphragm plate; 4. a longitudinal partition plate; 5. a storage cavity; 6. a battery pack; 7. a fire extinguishing member; 8. a sealing frame; 9. a protrusion; 10. a ventilation slot; 11. a pressure control chute; 12. a pressure control sealing plate; 121. controlling the pressure to penetrate through the groove; 13. introducing liquid into the groove; 14. a driving frame; 15. a drive plate; 151. a drive card slot; 16. a first flame retardant pad; 17. a second fire retardant pad; 71. a liquid storage frame; 711. a liquid storage cavity; 712. a rotation chamber; 701. a liquid discharge longitudinal groove; 702. a lyophobic longitudinal groove; 72. a rotating shaft; 73. a liquid control disc; 74. a toothed ring; 75. a rack; 76. a miniature telescopic rod; 77. driving the clamping column; 771. sliding through the groove; 78. a protective pad; 79. and (7) sealing the liquid cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example (b): as shown in fig. 1-9, the invention provides a multi-protection lithium ion battery, which comprises a protection outer frame 1, wherein a seal cover 2 is fixedly installed at the top end of the protection outer frame 1 through screws, so as to facilitate the detachment of the seal cover 2, a transverse partition plate 3 is fixedly clamped in the protection outer frame 1, a longitudinal partition plate 4 is vertically connected to the middle part of the transverse partition plate 3, the longitudinal partition plate 4 is fixedly clamped in the protection outer frame 1, the transverse partition plate 3 and the longitudinal partition plate 4 divide the space in the protection outer frame 1 into a plurality of object placing cavities 5, battery packs 6 are fixedly arranged in the object placing cavities 5, the transverse partition plate 3 and the longitudinal partition plate 4 are arranged in the protection outer frame 1 to divide the space in the protection outer frame 1 into a plurality of object placing cavities 5, so as to facilitate the separation of the battery packs 6, carry out the separation protection between a plurality of group batteries 6, prevent to produce the influence between a plurality of group batteries 6 to promote whole lithium ion battery's result of use, the lower fixed surface of closing cap 2 installs and puts the piece 7 of putting out a fire that 5 quantity of thing cavity correspond, the bottom fixed mounting of closing cap 2 has seal frame 8, seal frame 8 activity joint is on the top of protection frame 1, cross slab 3, longitudinal baffle 4, through setting up seal frame 8 in the bottom of closing cap 2, and after the installation of closing cap 2, seal frame 8 activity joint is on the top of protection frame 1, cross slab 3, longitudinal baffle 4, carries out every and puts the sealing of thing cavity 5, prevents that a plurality of group batteries 6 of separating the protection from receiving external environment to influence.
The utility model discloses a heat dissipation structure, including the protection frame 1, the outer wall of protection frame 1 is all extended to the both ends of cross slab 3, longitudinal baffle 4, the equal integrated into one piece of surface of cross slab 3, longitudinal baffle 4 has a plurality of archs 9 of evenly distributed, cross slab 3, longitudinal baffle 4 and a plurality of archs 9 all establish to heat conducting material, through the cross slab 3 that sets up heat conducting material, longitudinal baffle 4, and cross slab 3, longitudinal baffle 4's both ends all extend to the outer wall of protection frame 1, be convenient for carry out heat conduction heat dissipation to the temperature of every thing cavity 5 of putting, prevent that a plurality of group battery 6 are overheated impaired, protect a plurality of group battery 6, and through setting up a plurality of archs 9, increase the heat radiating area who puts the temperature in the thing cavity 5, cross slab 3, longitudinal baffle 4 all set up evenly distributed's a plurality of ventilation slots 10, through at cross slab 3, longitudinal baffle 4 open a plurality of ventilation slots 10 of evenly distributed, the air current of being convenient for passes through a plurality of ventilation slots 10, dispels heat to cross slab 3, longitudinal baffle 4 dispel the heat, and then promote the heat conduction effect of every thing cavity of putting.
The equal fixing clip of surface of horizontal separators 3, vertical separators 4 is equipped with first fire-retardant pad 16, the inboard fixing clip of protection frame 1 is equipped with the fire-retardant pad 17 of second, the fire-retardant pad 17 of first fire-retardant pad 16, second and the laminating of corresponding thing cavity 5 inner wall of putting, through setting up the fire-retardant pad 16 of first fire-retardant pad, the fire-retardant pad 17 of second, the fire-retardant pad 17 parcel of first fire-retardant pad 16, second is every to put the inner wall of thing cavity 5, and the impaired spontaneous combustion of group battery 6 in the thing cavity 5 is put to one of them, and first fire-retardant pad 16, the fire-retardant pad 17 of second can effectively obstruct the burning, prevent that other group battery 6 in putting the thing cavity 5 from receiving the influence, protect a plurality of group batteries 6.
The fire extinguishing part 7 comprises a liquid storage frame 71, the liquid storage frame 71 is fixedly installed on the lower surface of the sealing cover 2, the liquid storage frame 71 is movably clamped at the top of the corresponding storage cavity 5, a liquid storage cavity 711 is formed in the top of the liquid storage frame 71, a liquid sealing cover 79 is installed on the top of the liquid storage cavity 711 in a threaded mode, when the fire extinguishing part is used, the liquid sealing cover 79 is screwed open, explosion-proof fire extinguishing liquid is added into the liquid storage cavity 711 through the position of the liquid sealing cover 79, two rotating cavities 712 which are symmetrically distributed are formed in the bottom of the liquid storage frame 71, a rotating shaft 72 is fixedly installed in the middle of each rotating cavity 712, a liquid control disc 73 is rotatably sleeved on the outer side of each rotating shaft 72, the liquid control disc 73 is movably clamped in the corresponding rotating cavities 712, each liquid control disc 73 can stably rotate in the corresponding rotating cavity 712, a plurality of liquid discharge longitudinal grooves 701 which are distributed in an annular array are formed in the bottom end of the liquid storage frame 71 at the position of each rotating cavity 712, the liquid discharge longitudinal groove 701 movably penetrates through the rotating cavity 712, the top of the liquid discharge longitudinal groove 701 is communicated with the liquid storage cavity 711, the liquid control panel 73 is provided with the liquid dredging longitudinal groove 702 matched with the liquid discharge longitudinal groove 701, in an initial state, the liquid dredging longitudinal groove 702 and the liquid discharge longitudinal groove 701 on the liquid control panel 73 are staggered in position, at the moment, the explosion-proof fire-extinguishing liquid in the liquid storage cavity 711 cannot be discharged through the liquid discharge longitudinal groove 701 and the liquid dredging longitudinal groove 702, when the liquid control panel 73 is driven to stably rotate in the corresponding rotating cavity 712, the liquid dredging longitudinal groove 702 on the liquid control panel 73 corresponds to the liquid discharge longitudinal groove 701 in position, the explosion-proof fire-extinguishing liquid in the liquid storage cavity 711 can be discharged through the liquid discharge longitudinal groove 701 and the liquid dredging longitudinal groove 702 and flows into the corresponding storage cavity 5, the spontaneous combustion battery pack 6 in the storage cavity 5 is subjected to explosion-proof fire-extinguishing, and the battery packs 6 in other storage cavities 5 are prevented from being influenced, a plurality of battery packs 6 are protected.
The gear rings 74 are fixedly sleeved on the outer sides of the liquid control disks 73, the rack 75 is arranged on one side, close to the gear rings 74, of the bottom of the liquid storage frame 71 in a sliding and clamping mode, one side of the rack 75 is meshed with the outer sides of the gear rings 74, the micro telescopic rod 76 is fixedly clamped on one side, close to the rack 75, of the liquid storage frame 71, the driving end of the micro telescopic rod 76 is fixedly connected with the end portion of the rack 75, when the battery pack 6 in one storage cavity 5 is spontaneously combusted in use, the corresponding micro telescopic rod 76 is controlled and opened, the rack 75 is driven to slide in the liquid storage frame 71, the two gear rings 74 are synchronously driven to rotate, the liquid control disks 73 are driven to stably rotate in the corresponding rotating cavities 712, the positions of the lyophobic longitudinal grooves 702 and the lyophobic longitudinal grooves 701 on the corresponding liquid control disks 73 correspond to each other, the explosion-proof and fire-extinguishing liquid in the corresponding liquid storage cavities 711 can be discharged through the lyophobic longitudinal grooves 701 and the lyophobic longitudinal grooves 702 and flows into the corresponding storage cavities 5, the battery packs 6 in the storage cavities 5 are extinguished and protected, and explosion-proof effects on a plurality of the battery packs 6 are prevented.
The improved structure of the container is characterized in that two pressure control sliding grooves 11 which are symmetrically distributed are formed in one side, close to the bottom ventilation groove 10, of the transverse partition plate 3, a pressure control sealing plate 12 is arranged in each pressure control sliding groove 11 in a sliding clamp mode, a plurality of liquid through grooves 13 which are equidistantly distributed are formed in the outer side, close to the bottom ventilation groove 10, of the transverse partition plate 3, the liquid through grooves 13 movably penetrate through the pressure control sliding grooves 11 and are communicated with the bottom ventilation groove 10, pressure control through grooves 121 matched with the liquid through grooves 13 are formed in the pressure control sealing plate 12, the pressure control through grooves 121 and the liquid through grooves 13 are staggered in an initial state, a cavity 5 is sealed in a hollow space, when the pressure control sealing plate 12 is driven to slide in the pressure control sliding grooves 11, the pressure control through grooves 121 correspond to the positions of the liquid through grooves 13, and at the moment, the middle space of the container cavity 5 is communicated with the bottom ventilation groove 10.
A driving frame 14 is vertically installed in the middle of the top end of the pressure control sealing plate 12, the driving frame 14 is clamped in the diaphragm plate 3 in a sliding mode, a driving plate 15 is vertically installed at the top of the driving frame 14, the driving plate 15 is clamped on the diaphragm plate 3 in a sliding mode, and one side, far away from the driving frame 14, of the driving plate 15 extends into the storage cavity 5; a driving clamping column 77 is fixedly installed in the middle of the bottom end of the rack 75, a sliding groove 771 corresponding to the driving clamping column 77 is formed in the bottom end of the liquid storage frame 71, the driving clamping column 77 is clamped in the corresponding sliding groove 771 in a sliding manner, the lower surface of the driving clamping column 77 extends out of the bottom of the driving clamping column 77, a driving clamping groove 151 corresponding to the driving clamping column 77 is formed in the top end of the driving plate 15, the bottom activity joint of drive calorie post 77 is in drive draw-in groove 151, and the back is installed to closing cap 2, and the bottom activity joint of drive calorie post 77 is in drive draw-in groove 151, and when drive rack 75 carried out horizontal slip, drive calorie post 77 and drive plate 15, the synchronous horizontal migration of drive frame 14 to drive accuse pressure shrouding 12 slides in accuse pressure spout 11.
The equal fixed mounting in bottom four corners department of stock solution frame 71 has protection pad 78, the bottom of protection pad 78 and the upper surface contact of group battery 6, the installation back of closing cap 2, stock solution frame 71 activity joint is corresponding to put the top of thing cavity 5, and the bottom of protection pad 78 and the upper surface contact of group battery 6 are fixed a position the upper end of group battery 6 to promote the stability of group battery 6.
A protection method of a multi-protection lithium ion battery comprises the following steps:
step one, a transverse clapboard 3 and a longitudinal clapboard 4 are arranged in a protective outer frame 1, the transverse clapboard 3 and the longitudinal clapboard 4 divide the space in the protective outer frame 1 into a plurality of storage cavities 5, a first flame-retardant pad 16 and a second flame-retardant pad 17 are arranged in each storage cavity 5, then a plurality of battery packs 6 are separately placed in each storage cavity 5, separation protection among the plurality of battery packs 6 is carried out, influence among the plurality of battery packs 6 is prevented, then a sealing cover 2 is fixedly arranged at the top end of the protective outer frame 1 through screws, a sealing frame 8 is movably clamped at the top ends of the protective outer frame 1, the transverse clapboard 3 and the longitudinal clapboard 4, each storage cavity 5 is sealed, the plurality of battery packs 6 which are separated and protected are prevented from being influenced by external environment, a liquid storage frame 71 is movably clamped at the top of the corresponding storage cavity 5, the bottom of a driving clamping column 77 is movably clamped at a driving clamping groove 151, the bottom end of the driving clamping column 77 is in contact with the upper surface of each battery pack 6, and the upper end of each battery pack 6 is positioned;
step two, heat is generated when the plurality of battery packs 6 are used subsequently, the transverse partition plates 3 and the longitudinal partition plates 4 made of heat conducting materials conduct heat conduction and heat dissipation on the temperature in each storage cavity 5, the plurality of battery packs 6 are prevented from being damaged due to overheating, the plurality of battery packs 6 are protected, the heat dissipation area of the temperature in the storage cavities 5 is increased by arranging the plurality of protrusions 9, airflow can conveniently pass through the plurality of ventilation grooves 10, heat conduction and heat dissipation are conducted on the transverse partition plates 3 and the longitudinal partition plates 4, and the heat conduction and heat dissipation effect of the transverse partition plates 3 and the longitudinal partition plates 4 on the temperature in each storage cavity 5 is improved;
step three, when the battery pack 6 in one of the storage cavities 5 is damaged and spontaneously combusted, the first flame-retardant pad 16 and the second flame-retardant pad 17 can effectively block combustion, so that the battery packs 6 in other storage cavities 5 are prevented from being affected, and a plurality of battery packs 6 are protected;
meanwhile, the corresponding micro-telescopic rod 76 is controlled and started, the driving rack 75 slides in the liquid storage frame 71 to drive the driving clamping column 77 to drive the driving plate 15 and the driving frame 14 to synchronously and horizontally move, so as to drive the pressure control sealing plate 12 to slide in the pressure control sliding groove 11, the pressure control penetrating groove 121 corresponds to the liquid through penetrating groove 13, at this time, the space in the storage cavity 5 is communicated with the bottom ventilation groove 10, the two toothed rings 74 are synchronously driven to rotate, so as to drive the liquid control disc 73 to stably rotate in the corresponding rotating cavity 712, the messenger corresponds lyophobic vertical groove 702 and flowing back vertical groove 701 position on the accuse liquid dish 73 and corresponds, correspond the explosion-proof fire extinguishing fluid in stock solution chamber 711 and can pass through flowing back vertical groove 701, lyophobic vertical groove 702 is discharged, flow in corresponding putting the thing cavity 5, put the group battery 6 of spontaneous combustion in the cavity 5 and carry out explosion-proof fire extinguishing to this one, prevent that other group batteries 6 who puts in the thing cavity 5 from receiving the influence, protect a plurality of group batteries 6, and the explosion-proof fire extinguishing fluid that flows in putting the thing cavity 5 passes through accuse pressure cross groove 121, lead to liquid cross groove 13, bottom position ventilation groove 10 discharges.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a lithium ion battery of multiple protection, includes protection frame (1), its characterized in that: the utility model discloses a fire extinguishing device, including protection frame (1), the top of protection frame (1) has closing cap (2) through screw fixed mounting, the fixing clip is equipped with cross slab (3) in protection frame (1), the middle part of cross slab (3) is connected with vertical separators (4) perpendicularly, vertical separators (4) fixed joint is in protection frame (1), space separation in cross slab (3), vertical separators (4) will protect frame (1) is a plurality of thing cavitys (5) of putting, all fix being equipped with group battery (6) in putting thing cavity (5), the lower fixed surface of closing cap (2) installs and puts the piece of putting out a fire (7) that thing cavity (5) quantity corresponds, the bottom fixed mounting of closing cap (2) has sealed frame (8), sealed frame (8) activity joint is on the top of protection frame (1), cross slab (3), vertical separators (4).
2. The lithium ion battery of claim 1, wherein: the outer wall that both ends of horizontal wall (3), vertical baffle (4) all extend to protection frame (1), the surface homogeneous body shaping of horizontal wall (3), vertical baffle (4) has a plurality of archs (9) of evenly distributed, horizontal wall (3), vertical baffle (4) and a plurality of archs (9) are all established to heat-conducting material, evenly distributed's a plurality of ventilation groove (10) all set up in horizontal wall (3), vertical baffle (4).
3. The lithium ion battery of claim 1, wherein: the outer surface of the transverse partition plate (3) and the outer surface of the longitudinal partition plate (4) are respectively provided with a first flame-retardant pad (16), the inner side fixing clamp of the protective outer frame (1) is provided with a second flame-retardant pad (17), and the first flame-retardant pad (16), the second flame-retardant pad (17) and the corresponding inner wall of the storage cavity (5) are attached.
4. The lithium ion battery of claim 2, wherein: the utility model discloses a fire extinguishing part, including fire extinguishing part (7) including stock solution frame (71), stock solution frame (71) fixed mounting is at the lower surface of closing cap (2), stock solution frame (71) activity joint is corresponding to put the top of thing cavity (5), stock solution chamber (711) have been seted up at the top of stock solution frame (71), the top screw thread of stock solution chamber (711) is installed and is sealed liquid lid (79), two rotation chamber (712) of symmetric distribution are seted up to the bottom of stock solution frame (71), the middle part fixed mounting who rotates chamber (712) has axis of rotation (72), the outside rotation cover of axis of rotation (72) is equipped with accuse liquid dish (73), accuse liquid dish (73) activity joint is in rotation chamber (712) that corresponds, a plurality of flowing back vertical groove (701) that the annular array distributes are all seted up to stock solution frame (71) bottom of rotation chamber (712) position department, flowing back vertical groove (701) activity runs through and rotates chamber (712), the top and stock solution chamber (711) that the vertical groove (701) were indulged in the flowing back vertical groove (701) communicate each other, it dredges liquid groove (702) cooperation with dredging liquid groove (701) and use to seted up on accuse liquid dish (73).
5. The multi-protection lithium ion battery of claim 4, wherein: the outside of accuse liquid dish (73) is all fixed the cover and is equipped with ring gear (74), one side sliding card that stock solution frame (71) bottom is close to ring gear (74) is equipped with rack (75), the outside meshing of one side of rack (75) and ring gear (74) is connected, one side fixing card that stock solution frame (71) is close to rack (75) is equipped with miniature telescopic link (76), the drive end of miniature telescopic link (76) and the tip fixed connection of rack (75).
6. The lithium ion battery of claim 5, wherein: two accuse pressure spout (11) that the symmetric distribution was seted up to one side that diaphragm (3) are close to bottom ventilation groove (10), the accuse is pressed spout (11) well sliding card and is equipped with accuse pressure shrouding (12), a plurality of logical liquid that the equidistance distributes are seted up in the outside that diaphragm (3) are close to bottom ventilation groove (10) and are worn groove (13), lead to liquid and wear groove (13) activity and run through accuse pressure spout (11) and communicate each other with bottom ventilation groove (10), accuse pressure shrouding (12) are last seted up and are led to liquid and wear groove (13) cooperation use accuse pressure and wear groove (121).
7. The multi-protection lithium ion battery of claim 6, wherein: drive frame (14) are installed perpendicularly in the top middle part of accuse pressure shrouding (12), drive frame (14) slip joint is in cross slab (3), drive plate (15) are installed perpendicularly at the top of drive frame (14), drive plate (15) slip joint is on cross slab (3), one side that drive frame (14) were kept away from in drive plate (15) extends to putting thing cavity (5).
8. The lithium ion battery of claim 7, wherein: the bottom middle part fixed mounting of rack (75) has drive card post (77), the bottom of stock solution frame (71) is seted up and is slided groove (771) that corresponds with drive card post (77), drive card post (77) slip joint is in corresponding smooth groove (771), the lower surface of drive card post (77) is extended to the bottom of drive card post (77), drive card slot (151) that correspond with drive card post (77) are seted up on the top of drive plate (15), the bottom activity joint of drive card post (77) is in drive card slot (151).
9. The multi-protection lithium ion battery of claim 4, wherein: the bottom four corners department of stock solution frame (71) all fixed mounting have protection pad (78), the upper surface contact of the bottom of protection pad (78) and group battery (6).
10. A protection method of a lithium ion battery with multiple protections is characterized by comprising the following steps:
step one, a transverse partition plate (3) and a longitudinal partition plate (4) are installed in a protection outer frame (1), the transverse partition plate (3) and the longitudinal partition plate (4) divide the space in the protection outer frame (1) into a plurality of storage cavities (5), a first flame-retardant pad (16) and a second flame-retardant pad (17) are installed in the storage cavities (5), then a plurality of battery packs (6) are separately placed in each storage cavity (5), separation protection among the plurality of battery packs (6) is conducted, influence among the plurality of battery packs (6) is prevented, a sealing cover (2) is fixedly installed at the top end of the protection outer frame (1) through screws, a sealing frame (8) is movably clamped at the top end of the protection outer frame (1), the transverse partition plate (3) and the longitudinal partition plate (4), sealing of each storage cavity (5) is conducted, the plurality of battery packs (6) which are separated and protected are prevented from being influenced by the external environment, a liquid storage frame (71) is movably clamped at the top end of the corresponding storage cavity (5), the bottom end of a driving clamping column (77), the bottom end of the driving clamping groove (151) is movably clamped at the upper end of the protection pad (6), and the upper end of the battery pack (78) is positioned on the upper surface of the battery pack;
step two, heat is generated when the plurality of battery packs (6) are used subsequently, the transverse partition plates (3) and the longitudinal partition plates (4) made of heat conducting materials conduct heat conduction and heat dissipation on the temperature in each storage cavity (5), the plurality of battery packs (6) are prevented from being damaged due to overheating, the plurality of battery packs (6) are protected, the heat dissipation area of the temperature in the storage cavities (5) is increased through the arrangement of the plurality of protrusions (9), air flow can conveniently conduct heat conduction and heat dissipation on the transverse partition plates (3) and the longitudinal partition plates (4) through the plurality of ventilation grooves (10), and the heat conduction and heat dissipation effect of the transverse partition plates (3) and the longitudinal partition plates (4) on the temperature in each storage cavity (5) is improved;
step three, when the battery pack (6) in one of the storage cavities (5) is damaged and spontaneously combusted, the first flame-retardant pad (16) and the second flame-retardant pad (17) can effectively block combustion, so that the battery packs (6) in other storage cavities (5) are prevented from being influenced, and a plurality of battery packs (6) are protected;
simultaneously, control and open corresponding miniature telescopic link (76), drive rack (75) slide in stock solution frame (71), drive card post (77) and drive plate (15), drive frame (14) synchronous horizontal migration, thereby drive accuse pressure shrouding (12) and slide in accuse pressure spout (11), accuse pressure is worn groove (121) and is passed through liquid and wear groove (13) position and correspond, at this moment, put thing cavity (5) middle space and bottom position draft groove (10) and communicate with each other, two ring gear (74) of synchronous drive rotate, drive accuse liquid dish (73) and carry out stable rotation in corresponding rotation chamber (712), make and correspond to dredging liquid longitudinal groove (702) and flowing liquid longitudinal groove (701) spontaneous combustion position on accuse liquid dish (73) and correspond, the explosion-proof fire-extinguishing liquid that corresponds in chamber (711) can pass through drainage longitudinal groove (701), the drainage of accuse liquid longitudinal groove (702), flow into corresponding thing cavity (5), put the group battery (6) of putting thing cavity (5) and put the group of putting and put thing (6) and carry out explosion-proof, prevent that other group battery from wearing and put thing cavity (6) and pass through liquid and pass through ventilation groove (121), it influences to put thing groove (13) to put, it is put thing cavity (121) and discharge to put, it is put thing cavity (6) to put.
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| CN115411446B (en) | 2023-08-18 |
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