CN214068793U

CN214068793U - Flame-proof and explosion-proof lithium battery pack

Info

Publication number: CN214068793U
Application number: CN202120031708.9U
Authority: CN
Inventors: 刘建锋
Original assignee: Shenzhen Weiyuanxin Technology Co ltd
Current assignee: Shenzhen Weiyuanxin Technology Co ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-08-27
Anticipated expiration: 2031-01-05

Abstract

The utility model relates to a lithium cell technical field, specific fire-proof explosion-proof lithium cell group that says so, including the fixed case of group battery, fixed mounting has the fixed plate in the fixed case of group battery, fixed mounting has explosion-proof case on the fixed plate, evenly distributed installs the baffle in the explosion-proof case, fixed mounting has the heat-conducting plate in the explosion-proof case, be provided with a plurality of lithium cell standing grooves in the heat-conducting plate, every all install the lithium cell in the lithium cell standing groove, be provided with the ventilation pipe in the heat-conducting plate, movable mounting has the case lid on the fixed case of group battery. Explosion-proof lithium cell group, the lithium cell is placed in the lithium cell standing groove, is provided with a plurality of lithium cell standing grooves through the heat-conducting plate in the explosion-proof box, protects the lithium cell, cools down the lithium cell through the air-cooler, prevents that the lithium cell from fixing the explosion-proof box because overheated and produce through bolt and screw hole, can effectively reduce the influence of working process because of rocking production.

Description

Flame-proof and explosion-proof lithium battery pack

Technical Field

The utility model relates to a lithium cell technical field particularly, relates to explosion-proof lithium cell group of fire prevention.

Background

The lithium battery is a battery which uses lithium metal or lithium alloy as a positive/negative electrode material and uses a non-aqueous electrolyte solution, because the chemical characteristics of the lithium metal are very active, the processing, storage and use of the lithium metal are very high in environmental requirements, otherwise, the lithium battery has risks of spontaneous combustion and explosion, along with the development of scientific technology, people carry out certain improvement according to the characteristics of the lithium battery, reasonably use an explosion-proof technology, and greatly reduce the risks of explosion of the lithium battery, so that the lithium battery becomes mainstream, the lithium battery is a high and new technical product, and is a novel high-capacity long-life environment-friendly battery The mobile communication base station, electric power, chemical industry, hospital backup UPS, EPS power supply, security and protection lighting, portable mobile power supply, notebook computer, electric toy, mine safety equipment, digital product and other fields. Compared with nickel-cadmium and nickel-hydrogen batteries, the lithium ion battery has the advantages of high voltage, large specific energy, long cycle life, good safety performance, small self-discharge, no memory effect, rapid charge and discharge, wide working temperature range and the like.

However, the existing lithium battery pack has the following defects in use: most of the existing lithium battery packs adopt a plurality of lithium battery combinations to meet the requirements of voltage and electric quantity storage, protective measures such as an interlayer are not arranged between the lithium batteries, so that the explosion is easy to generate chain reaction, and the lithium battery packs have no effective heat dissipation structures and cannot prevent the explosion fundamentally.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides explosion-proof lithium cell group of fire prevention can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

explosion-proof lithium cell group prevents fires, including the group battery fixed box, fixed mounting has the fixed plate in the group battery fixed box, fixed mounting has explosion-proof case on the fixed plate, evenly distributed installs the baffle in the explosion-proof case, explosion-proof incasement portion separates into a plurality of regions through the baffle, fixed mounting has the heat-conducting plate in the explosion-proof case, be provided with a plurality of lithium cell standing grooves in the heat-conducting plate, every all install the lithium cell in the lithium cell standing groove, be provided with the ventilation pipe in the heat-conducting plate, ventilation pipe one end is connected with the air-cooler, the lower extreme of fixed plate in the group battery fixed box is installed to the air-cooler, the battery is installed to air-cooler one side, group battery fixed box upper end movable mounting has the case lid.

Preferably, bolt holes are symmetrically formed in two sides of the battery pack fixing box, threaded holes are symmetrically formed in two sides of the explosion-proof box, and fixing bolts are movably mounted in the battery pack fixing box and movably mounted in the threaded holes through the bolt holes.

Preferably, a case cover handle is fixedly mounted at the upper end of the case cover, case cover buckles are arranged at the two ends of the case cover, and the case cover buckles are movably arranged on the case cover and the battery pack fixing case.

Preferably, a lithium battery cover plate is arranged at the upper end of each lithium battery placing groove, and the lithium battery cover plate is movably arranged on the heat conducting plate.

Preferably, the dustproof net is installed at the upper end of the explosion-proof box, the fixed box handles are symmetrically and fixedly installed on two sides of the battery pack fixed box, the air inlet is formed in the bottom of the battery pack fixed box, and the box cover is provided with a plurality of air outlets.

Preferably, the partition plate is fixedly arranged in the heat conduction plate, the two sides of the upper end of each lithium battery are movably provided with connecting plates, and the connecting plates are movably arranged in the heat conduction plate and the partition plate.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) separate into a plurality of lithium cell standing grooves with explosion-proof case through baffle and heat-conducting plate, separately place every lithium cell, when preventing that single lithium cell body from explosion from appearing, produce chain reaction, detonate adjacent lithium cell body, be provided with the lithium cell apron on the lithium cell standing groove, explosion-proof case upper end is provided with the dust screen, can prevent that the dust from falling into inside the lithium cell, influence the life-span of aluminium battery.

(2) Fixing explosion-proof case in the group battery fixed box through the bolt, can reducing rocking of lithium cell in the course of the work, influence the use of lithium cell, reduce the damage, promote the life of lithium cell, when the lithium cell is overheated, ventilation pipe in accessible heat-conducting plate and the heat-conducting plate, under the effect of air-cooler, cool down the lithium cell, prevent that the lithium cell from producing the explosion because overheated.

Drawings

Fig. 1 is a schematic view of the overall structure of the flame-proof and explosion-proof lithium battery pack of the present invention;

fig. 2 is a top cross-sectional view of the flame-proof and explosion-proof lithium battery pack of the present invention;

fig. 3 is an enlarged schematic view of a point a in fig. 1 of the flame-proof and explosion-proof lithium battery pack according to the present invention;

fig. 4 is an enlarged schematic view of the part B in fig. 1 of the flame-proof and explosion-proof lithium battery pack of the present invention.

In the figure: 1. a battery pack fixing case; 2. a fixing plate; 3. an explosion-proof box; 4. a heat conducting plate; 5. a lithium battery placement groove; 6. a lithium battery; 7. a vent pipe; 8. an air cooler; 9. a storage battery; 10. a lithium battery cover plate; 11. a partition plate; 12. a dust screen; 13. a box cover; 14. a case cover handle; 15. a box cover is buckled; 16. fixing the bolt; 17. fixing a box handle; 18. bolt holes; 19. a threaded hole; 20. a connecting plate; 21. an air inlet; 22. and (7) an exhaust port.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

As shown in fig. 1-4, fire-proof explosion-proof lithium cell group, including group battery fixed box 1, fixed mounting has fixed plate 2 in the group battery fixed box 1, fixed mounting has explosion-proof case 3 on the fixed plate 2, evenly distributed installs baffle 11 in the explosion-proof case 3, a plurality of regions are separated into through baffle 11 to explosion-proof case 3 is inside, fixed mounting has heat-conducting plate 4 in the explosion-proof case 3, be provided with a plurality of lithium cell standing grooves 5 in the heat-conducting plate 4, every all install lithium cell 6 in the lithium cell standing groove 5, be provided with ventilation pipe 7 in the heat-conducting plate 4, ventilation pipe 7 one end is connected with air-cooler 8, the lower extreme at group battery fixed box 1 internal fixation board 2 is installed to air-cooler 8 one side installs battery 9, group battery fixed box 1 upper end movable mounting has case lid 13.

Through the technical scheme, the interior of the explosion-proof box 3 is divided into a plurality of areas through the partition plates 11 and the heat-conducting plate 4, each area is internally provided with the lithium battery placing groove 5, the lithium batteries 6 are placed in the lithium battery placing grooves 5, each lithium battery 6 is separately placed, chain reaction is prevented from being generated when a single lithium battery body explodes, adjacent lithium battery bodies are detonated, the upper end of each lithium battery placing groove 5 is provided with the lithium battery cover plate 10, the explosion-proof box 3 is provided with the dust screen 12, dust can be prevented from falling into the lithium batteries, the service life of the lithium batteries is influenced, when the lithium batteries 6 overheat, the heat-conducting plate 4 can absorb heat, the heat-conducting plate 4 is cooled by the cooling fan 8 under the action of the ventilation pipe 7, the explosion of the lithium batteries 6 caused by overheat is prevented, the explosion-proof box 3 is fixed in the battery pack fixing box 1 through the fixing bolts 16, can effectively reduce the shaking generated in the working process and is convenient to disassemble and assemble.

In this embodiment, 1 bilateral symmetry of group battery set casing is provided with

bolt hole

18, 3 bilateral symmetry of explosion-proof box is provided with

screw hole

19, 1 movable mounting of group battery set casing has fixing bolt 16, fixing bolt 16 passes through bolt hole 18 movable mounting in screw hole 19, under fixing bolt 16's effect, through bolt hole 18 on the group battery set casing 1 and the screw hole 19 on the explosion-proof box, fixes explosion-proof box 3 and group battery set casing 1, reduces rocking of lithium cell 6 in the course of the work.

It should be noted that a case cover handle 14 is fixedly mounted at the upper end of the case cover 13, case cover buckles 15 are arranged at two ends of the case cover 13, the case cover buckles 15 are movably arranged on the case cover 13 and the battery pack fixing case 1, the case cover handle 14 facilitates the placement of the case cover 13, the case cover 13 and the battery pack fixing case 1 are connected together through the movable case cover buckles 15, and the case cover 13 plays a role in preventing dust for the explosion-proof case 3 in the battery pack fixing case 1.

Wherein, every 5 upper ends of lithium cell standing groove all are provided with lithium cell apron 10, lithium cell apron 10 activity sets up on heat-conducting plate 4, and through lithium cell apron 10, the convenient installation to lithium cell 6, lithium cell apron 10 also can prevent that the dust from falling into inside lithium cell 6, influences lithium cell 6's use.

When specifically setting up, dust screen 12 is installed to 3 upper ends of explosion-proof box, 1 bilateral symmetry fixed mounting of group battery fixation case has fixed

case handle

17, 1 bottom of group battery fixation case is provided with air inlet 21, be provided with a plurality of gas vents 22 on the case lid 13, fixed case handle 17 is convenient to the removal of whole group battery fixation case 1, and inside dust screen 12 can be placed and the dust fell into lithium cell 6, air cooler 8 inhaled the air through air inlet 21, through ventilation pipe 7, discharges through gas vent 22 at last.

It should be noted that, 11 fixed mounting of baffle is in heat-conducting plate 4, every 6 upper end both sides movable mounting of lithium cell has connecting plate 20, connecting plate 20 movable mounting is in heat-conducting plate 4 and baffle 11, and lithium cell 6 separates through lithium cell standing groove 5, when preventing that single lithium cell body from exploding, produces chain reaction, detonates adjacent lithium cell body.

The working principle of the flame-proof and explosion-proof lithium battery pack is as follows:

when the explosion-proof box is used, firstly, the explosion-proof box 3 is fixed inside the battery pack fixing box 1 through the fixing bolt 16, the explosion-proof box 3 is divided into a plurality of areas through the partition plates 11 and the heat conducting plates 4, each area is internally provided with the lithium battery placing groove 5, the lithium battery 6 is placed in the lithium battery placing groove 5, the lithium battery 6 is fixed through the connecting plate 20, when explosion of a single lithium battery body is prevented, a chain reaction is generated, the adjacent lithium battery body is detonated, when the lithium battery 6 is overheated in the working process, the heat conducting plate 4 absorbs heat, explosion of the lithium battery 6 due to overheating is prevented, the air cooler 8 is driven by the storage battery 9, air is sucked through the air inlet 21, then the heat conducting plate 4 is cooled through the ventilation pipe 7, gas is exhausted through the exhaust port 22 on the box cover 13, the dust-proof net 12 and the lithium battery cover, the work of the lithium battery 6 is influenced, the disassembly and the assembly are convenient, and the spontaneous combustion and explosion of the lithium battery 6 caused by overheating can be effectively prevented.

It should be noted that the specific model of the air cooler 8 is an axial flow fan, and the specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Explosion-proof lithium cell group of fire prevention, including group battery fixation case (1), its characterized in that: a fixed plate (2) is fixedly arranged in the battery pack fixed box (1), an explosion-proof box (3) is fixedly arranged on the fixed plate (2), the inner part of the explosion-proof box (3) is uniformly distributed with clapboards (11), the inner part of the explosion-proof box (3) is divided into a plurality of areas by the clapboards (11), a heat conducting plate (4) is fixedly arranged in the explosion-proof box (3), a plurality of lithium battery placing grooves (5) are arranged in the heat conducting plate (4), a lithium battery (6) is arranged in each lithium battery placing groove (5), a ventilation pipe (7) is arranged in the heat conduction plate (4), one end of the ventilation pipe (7) is connected with an air cooler (8), the air cooler (8) is arranged at the lower end of the fixed plate (2) in the battery pack fixed box (1), storage battery (9) are installed to air-cooler (8) one side, movable mounting has case lid (13) on group battery fixed box (1).

2. The flame-proof and explosion-proof lithium battery pack according to claim 1, wherein: the battery pack fixing box is characterized in that bolt holes (18) are symmetrically formed in two sides of the battery pack fixing box (1), threaded holes (19) are symmetrically formed in two sides of the explosion-proof box (3), a fixing bolt (16) is movably mounted in the battery pack fixing box (1), and the fixing bolt (16) is movably mounted in the threaded holes (19) through the bolt holes (18).

3. The flame-proof and explosion-proof lithium battery pack according to claim 1, wherein: case lid (13) upper end fixed mounting has case lid handle (14), case lid (13) both ends are provided with case lid buckle (15), case lid buckle (15) activity sets up on case lid (13) and the fixed case (1) of group battery.

4. The flame-proof and explosion-proof lithium battery pack according to claim 1, wherein: every lithium cell standing groove (5) upper end all is provided with lithium cell apron (10), lithium cell apron (10) activity sets up on heat-conducting plate (4).

5. The flame-proof and explosion-proof lithium battery pack according to claim 1, wherein: the anti-explosion box is characterized in that the anti-dust net (12) is installed at the upper end of the anti-explosion box (3), a fixed box handle (17) is installed at the two sides of the battery pack fixing box (1) in a symmetrical mode, an air inlet (21) is formed in the bottom of the battery pack fixing box (1), and a plurality of air outlets (22) are formed in the box cover (13).

6. The flame-proof and explosion-proof lithium battery pack according to claim 1, wherein: baffle (11) fixed mounting is in heat-conducting plate (4), every lithium cell (6) upper end both sides movable mounting has connecting plate (20), connecting plate (20) movable mounting is in heat-conducting plate (4) and baffle (11).