CN216366395U

CN216366395U - Explosion-proof lithium battery pack

Info

Publication number: CN216366395U
Application number: CN202122414506.5U
Authority: CN
Inventors: 方华艳; 李德福
Original assignee: Shenzhen Zhifu New Energy Co ltd
Current assignee: Shenzhen Zhifu New Energy Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-04-26
Anticipated expiration: 2031-10-08

Abstract

The utility model discloses an explosion-proof lithium battery pack, which comprises an explosion-proof shell and a lithium battery pack in the explosion-proof shell; be equipped with trigger mechanism and the mechanism of putting out a fire in the explosion-proof housing, trigger mechanism is including triggering the groove, two metal contact blocks of placing relatively of the inner wall fixedly connected with of triggering the groove, and metal contact block top is equipped with the connecting block, and connecting block lower extreme fixedly connected with butt pole triggers tank bottom fixedly connected with support frame, has placed kerosene glass ball between butt pole and the support frame, and the mechanism of putting out a fire is including the shower nozzle of putting out a fire, and the shower nozzle intercommunication of putting out a fire has the connecting tube, and the connecting tube intercommunication has the solenoid valve. According to the utility model, through the explosion-proof shell, the fire extinguishing nozzle, the connecting pipeline, the high-pressure fire-fighting tank, the electromagnetic valve, the lithium battery pack, the trigger groove, the metal contact block, the connecting block, the abutting rod, the support frame and the kerosene glass ball, the lithium battery pack can be extinguished when a fire breaks out, and the explosion of the lithium battery pack is prevented.

Description

Explosion-proof lithium battery pack

Technical Field

The utility model relates to the field of batteries, in particular to an explosion-proof lithium battery pack.

Background

In the use process of the lithium battery, the lithium battery pack is ignited due to various reasons such as collision, overhigh temperature and the like, and once the lithium battery pack is ignited, the lithium battery pack is exploded to cause great damage to people or articles around.

SUMMERY OF THE UTILITY MODEL

Based on the defects in the prior art mentioned in the background art, the utility model provides the explosion-proof lithium battery pack.

The utility model overcomes the technical problems by adopting the following technical scheme, and specifically comprises the following steps:

the explosion-proof lithium battery pack comprises an explosion-proof shell and a lithium battery pack in the explosion-proof shell; be equipped with trigger mechanism and fire extinguishing mechanism in the explosion-proof housing, trigger mechanism is including triggering the groove, two metal contact piece of relative placement of triggering inslot wall fixedly connected with, metal contact piece top is equipped with the connecting block, connecting block lower extreme fixedly connected with butt pole, triggering groove bottom fixedly connected with support frame, the kerosene glass ball has been placed between butt pole and the support frame, fire extinguishing mechanism is including the shower nozzle of putting out a fire, the shower nozzle intercommunication of putting out a fire has the connecting tube, the connecting tube intercommunication has the solenoid valve, the pipeline that the solenoid valve is connected extends to the explosion-proof housing outer and communicates there is the high pressure fire control jar, solenoid valve and two metal contact pieces pass through the wire and establish ties with external power source.

Preferably, be equipped with shock absorber structure in the explosion-proof housing, shock absorber structure include with explosion-proof housing fixed connection's trapezoidal groove piece, sliding connection has trapezoidal slider in the trapezoidal groove piece, trapezoidal slider fixedly connected with sleeve, the sleeve has cup jointed the loop bar, loop bar and lithium cell group fixed connection are equipped with the compression spring with the loop bar butt in the sleeve.

Preferably, the high pressure fire control jar includes that the annular hangs down the splice, and the annular hangs down splice and high pressure fire control jar inner wall fixed connection, and the piston piece has been placed to annular hangs down the splice top, and the cavity is deposited to the dry powder has been seted up to piston piece top, and the high-pressure gas chamber has been seted up to annular hangs down the splice below, and the dry powder is deposited the cavity and is all seted up the air vent with the high-pressure gas chamber, and the air vent is connected with the screw cap.

Preferably, the electromagnetic valve is communicated with a plurality of connecting pipelines, and the connecting pipelines are communicated with the fire extinguishing nozzles in different directions.

Preferably, the bottom of the lithium battery pack is fixedly connected with a spherical placing block, and the spherical placing block is provided with a circular groove for placing the rubber ball.

Preferably, the four side inner walls of the explosion-proof shell are provided with shock absorbing structures.

After adopting the structure, compared with the prior art, the utility model has the following advantages:

according to the utility model, through the explosion-proof shell, the fire extinguishing nozzle, the connecting pipeline, the high-pressure fire-fighting tank, the electromagnetic valve, the lithium battery pack, the trigger groove, the metal contact block, the connecting block, the abutting rod, the support frame and the kerosene glass ball, the lithium battery pack can be extinguished when a fire breaks out, and the explosion of the lithium battery pack is prevented.

According to the utility model, the probability of fire or explosion caused by collision of the lithium battery pack is reduced through the trapezoid groove block, the trapezoid sliding block, the sleeve, the loop bar, the compression spring, the spherical placing block and the rubber ball.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

fig. 4 is a schematic view of the internal structure of the high-pressure fire fighting tank according to the present invention.

In the figure: 1. an explosion-proof housing; 2. a fire extinguishing nozzle; 3. connecting a pipeline; 4. a high pressure fire-fighting tank; 5. an electromagnetic valve; 6. a lithium battery pack; 7. a trigger slot; 8. a metal contact block; 9. connecting blocks; 10. a butting rod; 11. a support frame; 12. kerosene glass spheres; 13. a trapezoidal groove block; 14. a trapezoidal slider; 15. a sleeve; 16. a loop bar; 17. a compression spring; 18. a spherical placing block; 19. rubber balls; 401. an annular lower joint block; 402. a piston block; 403. a dry powder storage chamber; 404. a high pressure gas chamber; 405. and (4) a threaded cap.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1 to 4, in an embodiment of the utility model, an explosion-proof lithium battery pack includes an explosion-proof housing 1 and a lithium battery pack 6 in the explosion-proof housing 1; be equipped with trigger mechanism and fire extinguishing mechanism in explosion-proof housing 1, trigger mechanism is including triggering

groove

7, 7 inner wall fixedly connected with of triggering groove 7 metal contact piece 8 of two relative placements, metal contact piece 8 top are equipped with connecting

block

9, 9 lower extreme fixedly connected with butts pole 10 of connecting block, 7 bottom fixedly connected with support frames 11 of triggering groove, kerosene glass ball 12 has been placed between butts pole 10 and the support frame 11, fire extinguishing mechanism is including putting out a

fire shower nozzle

2, 2 intercommunications of shower nozzle of putting out a fire have connecting

tube

3, 3 intercommunications of connecting tube have solenoid valve 5, the pipeline that solenoid valve 5 connects extends to 1 outer intercommunications of explosion-proof housing and has high-pressure fire control jar 4, and solenoid valve 5 and two metal contact piece 8 establish ties with external power source through the wire.

Specifically, when lithium cell group 6 catches fire, the kerosene glass ball 12 of top takes place to break, and butt pole 10 drives connecting block 9 and moves down, makes two metal contact piece 8 switch on, and solenoid valve 5 opens, spouts the dry powder fire extinguishing material in the high pressure fire control jar 4 to the lithium cell group 6 that catches fire.

In this embodiment, high pressure fire control jar 4 includes that the annular hangs down joint block 401, and the annular hangs down

joint block

401 and 4 inner wall fixed connection of high pressure fire control jar, piston block 402 has been placed to the annular hangs down joint block 401 top, and piston block 402 top has been seted up the dry powder and has been deposited chamber 403, the high-pressure gas chamber 404 has been seted up to the annular hangs down joint block 401 below, the dry powder is deposited chamber 403 and high-pressure gas chamber 404 and has all been seted up the air vent, and the air vent is connected with screw cap 405.

Specifically, the dry powder storage chamber 403 is filled with a dry powder extinguishing material through the vent hole, the screw cap 405 is screwed down, and then the high-pressure gas chamber 404 is filled with high-pressure gas through the vent hole.

In the present embodiment, the electromagnetic valve 5 is communicated with a plurality of connecting pipes 3, and the connecting pipes 3 are communicated with the fire extinguishing nozzles 2 in different directions.

Specifically, the fire extinguishing nozzles 2 in a plurality of different directions can extinguish fire at a fire.

In this embodiment, a spherical placing block 18 is fixedly connected to the bottom of the lithium battery pack 6, and a circular groove for placing the rubber ball 19 is formed in the spherical placing block 18.

Specifically, the rubber ball 19 reduces the impact on the lithium battery pack 6 when the explosion-proof housing 1 vibrates, and the lithium battery pack 6 can move more smoothly.

In another embodiment of the present invention, a shock absorbing structure is arranged in the explosion-proof housing 1, the shock absorbing structure includes a trapezoidal groove block 13 fixedly connected with the explosion-proof housing 1, a trapezoidal sliding block 14 is slidably connected in the trapezoidal groove block 13, the trapezoidal sliding block 14 is fixedly connected with a sleeve 15, the sleeve 15 is sleeved with a loop bar 16, the loop bar 16 is fixedly connected with the lithium battery pack 6, and a compression spring 17 abutting against the loop bar 16 is arranged in the sleeve 15.

Specifically, the explosion-proof housing 1 is damped by the sleeve rod 16 pushing the compression spring 17 when in collision, and the trapezoidal groove block 13 prevents the sleeve rod 16 from being damaged when in damping.

In this embodiment, the four side inner walls of the explosion-proof housing 1 are provided with shock absorbing structures.

Specifically, the shock absorbing structures prevent the lithium battery pack 6 from colliding with the explosion-proof housing 1.

The working principle is as follows:

at first deposit the dry powder and deposit the intussuseption of chamber 403 through the vent hole to the dry powder and fill dry powder fire extinguishing material, screw thread cover 405 screws up, high-pressure gas is poured into to high-pressure gas chamber 404 through the vent hole to the rethread, screw thread cover 405 screws up equally, when lithium cell group 6 conflagration breaing out, the kerosene glass ball 12 of top breaks, butt pole 10 drives connecting block 9 and moves down, make two metal contact piece 8 switch on, solenoid valve 5 opens, promote piston block 402 with the high-pressure gas in the high pressure fire control jar 4 and spout dry powder fire extinguishing material to the lithium cell group 6 that fires, put out the fire, place the emergence explosion, in addition, through loop bar 16 promotion compression spring 17 when explosion-proof housing 1 bumps and move away to avoid possible damage, trapezoidal recess piece 13 makes loop bar 16 move in the emergence of moving away to avoid possible damage, reduce the probability of firing.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The explosion-proof lithium battery pack comprises an explosion-proof shell (1) and a lithium battery pack (6) in the explosion-proof shell (1); the fire extinguishing device is characterized in that a triggering mechanism and a fire extinguishing mechanism are arranged in the explosion-proof shell (1), the triggering mechanism comprises a triggering groove (7), two metal contact blocks (8) which are oppositely arranged are fixedly connected to the inner wall of the triggering groove (7), a connecting block (9) is arranged above the metal contact blocks (8), a butt rod (10) is fixedly connected to the lower end of the connecting block (9), a support frame (11) is fixedly connected to the bottom of the triggering groove (7), kerosene glass balls (12) are placed between the butt rod (10) and the support frame (11), the fire extinguishing mechanism comprises a fire extinguishing nozzle (2), the fire extinguishing nozzle (2) is communicated with a connecting pipeline (3), the connecting pipeline (3) is communicated with an electromagnetic valve (5), a pipeline connected with the electromagnetic valve (5) extends to the explosion-proof shell (1) and is communicated with a high-pressure fire fighting tank (4), the electromagnetic valve (5) and the two metal contact blocks (8) are connected in series with an external power supply through leads.

2. The explosion-proof lithium battery pack according to claim 1, wherein a shock absorbing structure is arranged in the explosion-proof housing (1), the shock absorbing structure comprises a trapezoidal groove block (13) fixedly connected with the explosion-proof housing (1), a trapezoidal sliding block (14) is slidably connected in the trapezoidal groove block (13), a sleeve (15) is fixedly connected with the trapezoidal sliding block (14), a loop bar (16) is sleeved on the sleeve (15), the loop bar (16) is fixedly connected with the lithium battery pack (6), and a compression spring (17) abutted against the loop bar (16) is arranged in the sleeve (15).

3. The explosion-proof lithium battery pack according to claim 1, wherein the high-pressure fire-fighting tank (4) comprises an annular low-joint block (401), the annular low-joint block (401) is fixedly connected with the inner wall of the high-pressure fire-fighting tank (4), a piston block (402) is placed above the annular low-joint block (401), a dry powder storage cavity (403) is formed above the piston block (402), a high-pressure gas cavity (404) is formed below the annular low-joint block (401), and the dry powder storage cavity (403) and the high-pressure gas cavity (404) are both provided with vent holes which are connected with a threaded cover (405).

4. Explosion-proof lithium battery pack according to claim 1, characterized in that the solenoid valve (5) is connected to a plurality of connecting lines (3), the connecting lines (3) being connected to fire extinguishing nozzles (2) in different directions.

5. The explosion-proof lithium battery pack as claimed in claim 1, wherein the bottom of the lithium battery pack (6) is fixedly connected with a spherical placing block (18), and the spherical placing block (18) is provided with a circular groove for placing the rubber ball (19).

6. The lithium battery pack of claim 2, wherein the explosion-proof housing (1) is provided with shock-absorbing structures on the four inner walls.