CN211629159U

CN211629159U - Echelon utilization lithium battery with protection device

Info

Publication number: CN211629159U
Application number: CN201922492526.7U
Authority: CN
Inventors: 李书华; 朱国才; 谭艳龙; 杜玉凯; 刘宁; 刘双双
Original assignee: Shandong Yicong New Energy Co Ltd
Current assignee: Shandong Yicong New Energy Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-02
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a lithium cell technical field just discloses a echelon utilizes lithium cell with protection device. This echelon utilizes lithium cell with protection device, including casing and lithium cell, the inside fixed mounting of casing has the shock attenuation board, damping spring and explosion-proof board, the liquid injection layer is installed at the top of second explosion-proof board, the heat absorbing sheet has been cup jointed to the outside of lithium cell, the outside one side intercommunication of casing has the blast pipe, second rupture disk device is installed to one side of blast pipe, the exhaust lid is installed to the opposite side, discharge valve is installed at the top of casing, the inside spout that has seted up of discharge valve, the inside movable mounting of spout has the slide bar, the baffle is installed to the other end of slide bar, the spring is installed at the bottom center of baffle, the spheroid is installed to. This echelon utilizes lithium cell with protection device possesses advantages such as can in time effectual discharge high-temperature gas, shock attenuation and explosion-proof, breaks and injures staff's problem on every side when having solved the explosion.

Description

Echelon utilization lithium battery with protection device

Technical Field

The utility model relates to a lithium cell technical field specifically is a echelon utilizes lithium cell with protection device.

Background

The most big equipment of lithium cell use amount is electric automobile, and along with the gradual arrival of first batch electric automobile service life, a large amount of automobile-used lithium cell group face retirement and scrap and handle, and the quantity is so huge lithium cell in ten thousand tons as the unit, and it is obviously unsuitable directly to handle according to scrap procedure and flow. The sound and discussion of the use of battery packs in a echelon has been continued over the years, and this sound is positive and positive, and is a manifestation of further enhanced awareness of environmental protection and resource reuse.

Echelon utilizes the lithium cell is a country and vigorously supports novel energy saving battery, break down or the misuse when this type of battery, overcurrent (charge or discharge), the battery short circuit, overcharge or discharge and when overheated abnormal conditions etc., will take place abnormal change in the battery, cause organic electrolyte or even electrode active material to decompose and produce a large amount of gases, arouse the inside temperature rise of battery, press too big in the battery, lead to the battery to break or explode, a large amount of gas blowout, damage electrical apparatus, harm personal safety, present echelon utilizes the safeguard measure of lithium cell not perfect enough, and can accidentally injure the staff.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a echelon utilizes lithium cell with protection device possesses advantages such as can be timely effectual discharge high temperature gas, shock attenuation and explosion-proof, breaks when having solved the explosion and injures staff's problem on every side.

The utility model provides a technical scheme that its technical problem adopted is: a lithium battery with a protection device for echelon utilization comprises a shell and a lithium battery, wherein damping plates are fixedly mounted on the inner wall of the shell, damping springs are fixedly mounted on one sides of the damping plates, which are far away from the shell, first explosion-proof plates are fixedly mounted on one ends of the damping springs, which are far away from the damping plates, second explosion-proof plates are fixedly mounted at the bottom of the interior of the shell, a liquid injection layer is fixedly mounted at the top of the second explosion-proof plates, a first rupture disk device is fixedly mounted on one side of the top of the liquid injection layer, a heat absorption disk is sleeved outside the lithium battery, an exhaust pipe is communicated with one side of the exterior of the shell, a second rupture disk device is fixedly mounted on one side of the exhaust pipe, an exhaust cover is movably mounted on one side of the exhaust pipe, which is far away from the second rupture disk device, an exhaust valve is fixedly mounted, the inside movable mounting of spout has the slide bar, the one end fixed mounting that the spout was kept away from to the slide bar has the baffle, the bottom center fixed mounting of baffle has the spring, the one end fixed mounting that the baffle was kept away from to the spring has the spheroid.

Furthermore, the shell is made of a toughened material.

Further, the lithium battery is located at the top center of the liquid injection layer, and condensate is arranged inside the liquid injection layer.

Furthermore, there are four chutes, and four chutes are set inside the exhaust valve in rectangular symmetry, and the chutes are matched with the sliding rod in size.

Furthermore, the first rupture disk device and the second rupture disk device are both composed of rupture disks and clamping devices.

Further, a sealing layer is arranged at the joint of the exhaust pipe and the shell.

The utility model has the advantages that:

1. according to the echelon utilization lithium battery with the protection device, gas is expanded at high temperature and then is ejected out of the ball body upwards, the spring arranged at the upper end of the ball body springs open the baffle plate, then the high-temperature expanded gas is discharged outwards, and then after the pressure in the shell body is restored to a normal state, the baffle plate falls to block air and is continuously discharged; the outer side of the shell is also provided with an exhaust pipe, when the pressure in the shell exceeds a set value, the rupture disk in the rupture disk device is broken, high-pressure gas in the shell is discharged by the exhaust pipe, and when explosion occurs, devices such as a damping plate, a damping spring, an explosion-proof plate and the like arranged in the shell can damp, so that the effect of buffering force is reduced. The device can in time discharge high-temperature gas, takes place the explosion and absorbs the impact, and the maximum ability keeps the shell complete, can not produce the piece and injure the staff, and is stable safety.

2. This echelon utilizes lithium cell with protection device, the lithium cell during operation can produce high temperature, the heat sink piece that sets up around the lithium cell just begins the heat absorption, enable the temperature and reduce, be provided with the liquid injection layer in the bottom of lithium cell, it is the condensate to deposit inside, the surface of liquid injection layer is provided with rupture disc device, in case pressure in the casing has exceeded the value of settlement, rupture disc just breaks, the condensate of placing inside just can distribute out and absorb heat, avoid further rising of temperature, heat sink piece and condensate have played the effect of dual cooling.

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.

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

fig. 2 is a schematic diagram of the structure a of the present invention.

Description of reference numerals: the explosion-proof structure comprises a shell 1, a lithium battery 2, a shock absorption plate 3, a shock absorption spring 4, a first explosion-proof plate 5, a second explosion-proof plate 6, a liquid injection layer 7, a first explosion piece device 8, a heat absorption piece 9, a second explosion piece device 10, an exhaust pipe 11, an exhaust cover 12, an exhaust valve 13, a sliding chute 14, a sliding rod 15, a baffle 16, a spring 17 and a sphere 18.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-2, a echelon utilization lithium battery with a protection device includes a housing 1 and a lithium battery 2, the housing 1 is made of a toughened material and has high safety performance, a plurality of damping plates 3 are fixedly mounted on inner walls of the housing 1 to protect the housing and reduce a buffering force on the housing 1 during explosion, the damping plates 3 are fixedly mounted on one sides away from the housing 1 with a plurality of damping springs 4 and reduce a buffering force on the housing 1 during explosion, a first explosion-proof plate 5 is fixedly mounted on one ends of the damping springs 4 away from the damping plates 3 to reduce an explosive force of the lithium battery 2 on the periphery, a second explosion-proof plate 6 is fixedly mounted at the bottom of the housing 1 to reduce an explosive force of the lithium battery 2 on the bottom, a liquid injection layer 7 is fixedly mounted at the top of the second explosion-proof plate 6, the lithium battery 2 is located at the top center of the liquid injection layer 7, and condensate is stored in the liquid injection layer 7, the condensed fluid has the effects that when the lithium battery 2 generates heat during work, the temperature in the shell 1 is reduced, the first rupture disk device 8 is fixedly installed on one side of the top of the liquid injection layer 7, when the pressure in the shell 1 exceeds a set value, the rupture disk in the first rupture disk device 8 is broken, the condensed fluid in the liquid injection layer 7 is emitted to absorb heat, the temperature is not further increased, and the temperature is reduced to a certain effect, the heat absorption disk 9 is sleeved outside the lithium battery 2, when the lithium battery 2 is charged to generate high temperature, the heat absorption and the temperature reduction are started, the heat absorption disk 9 and the condensed fluid in the liquid injection layer 7 achieve the double temperature reduction effect, the explosion probability is reduced, the exhaust pipe 11 is communicated with one side of the outer part of the shell 1, during explosion, high-pressure gas in the shell 1 is exhausted from the exhaust pipe 11, the sealing layer is installed at the joint of the exhaust pipe 11 and the shell 1, a second rupture disk device 10 is fixedly installed on one side of an exhaust pipe 11, both a first rupture disk device 8 and the second rupture disk device 10 are composed of a rupture disk and a holder, an exhaust cover 12 is movably installed on one side of the exhaust pipe 11 far away from the second rupture disk device 10, after high-temperature gas in a shell 1 is exhausted, the exhaust cover 12 can automatically fall down without manual operation, and dust can be prevented from entering, an exhaust valve 13 is fixedly installed on the top of the shell 1, a sliding groove 14 is formed in the exhaust valve 13, a sliding rod 15 is movably installed in the sliding groove 14, a baffle 16 is fixedly installed at one end, far away from the sliding groove 14, of the sliding rod 15, four sliding grooves 14 are symmetrically arranged in the exhaust valve 13 in a rectangular mode, the sliding rod 15 is matched with the specification and the size of the sliding groove 14, a spring 17 is fixedly installed at the center of the bottom of the baffle 16, a sphere 18 is fixedly installed at one end, far away from the baffle 16, when the high-pressure gas in the shell 1 is exhausted, the ball 18 falls down, the baffle 16 also slides along with the ball, and the air is blocked from being exhausted.

When the lithium battery is used, the lithium battery 2 is charged to generate high temperature, the heat absorbing sheet 9 starts to absorb heat, when the lithium battery 2 is overcharged or short-circuited, the gas in the shell 1 is expanded by the high temperature and then upwards ejects out of the sphere 18, the spring 17 arranged at the upper end of the sphere 18 bounces off the baffle 16, then after the high-temperature expanded gas is exhausted, the pressure in the shell 1 is recovered, the sphere 18 falls down, the baffle 16 also slides along with the sphere, and the blocked air is continuously exhausted; when the pressure in the shell 1 is higher than a set value, the rupture disk in the first rupture disk device 8 is ruptured, and condensate in the liquid injection layer is emitted to reduce the temperature, so that the temperature is not further increased; when explosion happens, devices such as the damping plate 3 and the damping spring 4 arranged in the shell 1 can damp, the rupture disk in the second rupture disk device 10 is broken due to high pressure, and high-temperature gas is discharged from the exhaust pipe 11.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a echelon utilization lithium cell with protection device, includes casing (1) and lithium cell (2), its characterized in that: the inner wall of the shell (1) is fixedly provided with a damping plate (3), one side of the damping plate (3) far away from the shell (1) is fixedly provided with a damping spring (4), one end of the damping spring (4) far away from the damping plate (3) is fixedly provided with a first explosion-proof plate (5), the bottom of the interior of the shell (1) is fixedly provided with a second explosion-proof plate (6), the top of the second explosion-proof plate (6) is fixedly provided with a liquid injection layer (7), one side of the top of the liquid injection layer (7) is fixedly provided with a first explosion piece device (8), the exterior of the lithium battery (2) is sleeved with a heat absorption piece (9), one side of the exterior of the shell (1) is communicated with an exhaust pipe (11), one side of the exhaust pipe (11) is fixedly provided with a second explosion piece device (10), one side of the exhaust pipe (11) far away from the second explosion piece device (10) is movably provided with an exhaust cover (12, the top fixed mounting of casing (1) has discharge valve (13), spout (14) have been seted up to discharge valve (13) inside, the inside movable mounting of spout (14) has slide bar (15), the one end fixed mounting that spout (14) were kept away from in slide bar (15) has baffle (16), the bottom center fixed mounting of baffle (16) has spring (17), the one end fixed mounting that baffle (16) were kept away from in spring (17) has spheroid (18).

2. The gradient utilization lithium battery with the protection device as claimed in claim 1, wherein: the shell (1) is made of a toughened material.

3. The gradient utilization lithium battery with the protection device as claimed in claim 1, wherein: the lithium battery (2) is located at the center of the top of the liquid injection layer (7), and condensate is arranged inside the liquid injection layer (7).

4. The gradient utilization lithium battery with the protection device as claimed in claim 1, wherein: the four sliding chutes (14) are symmetrically arranged inside the exhaust valve (13) in a rectangular shape, and the sliding chutes (14) are matched with the specification and the size of the sliding rod (15).

5. The gradient utilization lithium battery with the protection device as claimed in claim 1, wherein: the first rupture disk device (8) and the second rupture disk device (10) are both composed of rupture disks and a clamp holder.

6. The gradient utilization lithium battery with the protection device as claimed in claim 1, wherein: and a sealing layer is arranged at the joint of the exhaust pipe (11) and the shell (1).