CN210926224U

CN210926224U - Ternary lithium ion battery with explosion-proof protection function

Info

Publication number: CN210926224U
Application number: CN201921906124.0U
Authority: CN
Inventors: 李忠奇; 郭建明; 李健; 岳明仑
Original assignee: Xinxiang Qixin Power Supply Material Co ltd
Current assignee: Xinxiang Qixin Power Supply Material Co ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-07-03
Anticipated expiration: 2029-11-07

Abstract

The utility model discloses a ternary lithium ion battery with explosion-proof protect function, including base and protection casing, there is the motor through the bolt fastening on the inner wall at protection casing top, and the transmission is connected with the heat dissipation fan on the output shaft of motor, the protection casing both sides all are provided with the filter screen, the inside of base is provided with the cavity, there is the gas cylinder fixing base at the top of cavity through the bolt fastening, the inside of gas cylinder fixing base is provided with the gas cylinder, and the exit of gas cylinder passes through valve fixedly connected with gas-supply pipe, and the both ends that the gas cylinder was kept away from to the gas-supply pipe. The utility model discloses the heat dissipation fan that sets up, when the motor drives the heat dissipation fan and rotates, the heat gives off the outside from the filter screen to reduced the inside heat of protection casing, the effectual life who prolongs the battery, when the battery takes place the spontaneous combustion because of the high temperature, through temperature sensor's response, gas cylinder blowout carbon dioxide gas, the degree of prevention spontaneous combustion that can be quick prevents the explosion, has improved the security performance.

Description

Ternary lithium ion battery with explosion-proof protection function

Technical Field

The utility model relates to a lithium cell technical field especially relates to a ternary lithium ion battery with explosion-proof protect function.

Background

The development of green and environment-friendly high-performance lithium batteries is accelerated globally due to the serious non-renewable energy crisis and environmental pollution, and the application field of the lithium batteries is extended from the field of digital products to the fields of traffic power, energy storage, aerospace, communication standby power supplies and the like. The lithium battery has light weight, small volume, fast charging speed, large capacity, and is widely applied to various electric appliance products, including household appliances and electric vehicles, but because the lithium battery is overcharged, overdischarged or short-circuited inside, the working current of the battery is too large, the temperature of the battery is too high, high-temperature and high-pressure gas is generated, the pressure and temperature inside the battery are high, when the pressure and temperature inside the battery exceed the bearing capacity of the battery packaging container, the packaging container is exploded, inflammable and explosive substances inside the packaging container flow outwards, serious accidents such as explosion and fire are caused, and special explosion-proof devices are required to be arranged on the battery, particularly on the lithium battery, so that the battery is prevented from explosion.

The protection casing of current lithium ion battery is not convenient for the dismouting, and the flexibility is poor to current lithium ion battery does not have the heat dissipation function, uses a period of time after lithium ion battery, and lithium ion battery's temperature can rise, if can not in time dispel the heat and can influence lithium ion battery's life, consequently, need to design a ternary lithium ion battery who has explosion-proof protect function to solve above-mentioned problem urgently.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing a ternary lithium ion battery with an explosion-proof protection function.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a ternary lithium ion battery with explosion-proof protect function, includes base and protection casing, there is the motor through the bolt fastening on the inner wall at protection casing top, and the transmission is connected with the heat dissipation fan on the output shaft of motor, the protection casing both sides all are provided with the filter screen, the inside of base is provided with the cavity, the top of cavity has the gas cylinder fixing base through the bolt fastening, the inside of gas cylinder fixing base is provided with the gas cylinder, and the exit of gas cylinder passes through valve fixedly connected with gas-supply pipe, and the gas-supply pipe both ends of keeping away from the gas cylinder all are provided with the air jet, the draw-in groove has all been seted up to four end foot departments of protection casing bottom outer.

Further, the joint subassembly includes sleeve, second spring and cardboard, the sleeve passes through the bolt fastening on the inner wall of base groove, telescopic inside is provided with the second spring, and the cardboard passes through second spring swing joint in telescopic inside, the specification looks adaptation of cardboard and draw-in groove.

Further, there is the battery cassette through the bolt fastening on the outer wall at base top, and is provided with fixed subassembly on one side inner wall of battery cassette, fixed subassembly includes first spring, first spring is equidistance structure fixed mounting in the inside of battery cassette, and the laminating of the one end that battery cassette was kept away from to first spring has splint.

Furthermore, a temperature sensor is fixed on the outer wall of one side of the battery clamping seat through a bolt, and the temperature sensor is electrically connected with the gas cylinder through a wire.

Furthermore, a handle is fixed on the outer wall of the top of the protective cover through a bolt, and a battery body is movably connected to the inner wall of the battery clamping seat.

The utility model has the advantages that:

1. through the heat dissipation fan that sets up, when the motor drives the heat dissipation fan and rotates, can take away the inside heat of protection casing for the heat gives off the outside from the filter screen, thereby has reduced the inside heat of protection casing, the effectual life who prolongs the battery.

2. Through the cardboard that sets up, when the protection casing installation or when dismantling, cardboard and second spring cooperation can be more convenient installation or dismantle the protection casing to fixed protection casing that can be better has improved the stability of protection casing, can be fine simultaneously play the guard action to the lithium cell.

3. Through the gas cylinder that sets up, when the battery took place the spontaneous combustion because of the high temperature, through temperature sensor's response, gas cylinder blowout carbon dioxide gas, the prevention battery spontaneous combustion that can be quick prevents the explosion, has improved the security performance.

Drawings

Fig. 1 is a schematic structural diagram of a ternary lithium ion battery with an explosion-proof protection function provided by the present invention;

fig. 2 is a schematic structural diagram of a fixing assembly of a ternary lithium ion battery with an explosion-proof protection function provided by the present invention;

fig. 3 is a schematic structural diagram of a clamping assembly of a ternary lithium ion battery with an explosion-proof protection function provided by the present invention;

in the figure: the gas cylinder heat dissipation device comprises a base 1, a protective cover 2, a clamping component 3, a cavity 4, a gas cylinder fixing seat 5, a gas cylinder 6, a gas conveying pipe 7, an air jet 8, a battery clamping seat 9, a fixing component 10, a battery body 11, a temperature sensor 12, a handle 13, a motor 14, a heat dissipation fan 15, a filter screen 16, a filter screen 17, a first spring 18, a clamping plate 19, a clamping plate 20, a clamping groove 21 and a second spring 22.

Detailed Description

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

Please refer to fig. 1 to fig. 3 simultaneously, a ternary lithium ion battery with explosion-proof protection function, including base 1 and protection casing 2, there is motor 14 fixed on the inner wall of the top of protection casing 2 through the bolt, the model of motor 14 is YZF48N-25, and the transmission is connected with heat dissipation fan 15 on the output shaft of motor 14, both sides of protection casing 2 are provided with filter screens 16, the inside of base 1 is provided with cavity 4, there is gas cylinder fixing base 5 at the top of cavity 4 through the bolt, the inside of gas cylinder fixing base 5 is provided with gas cylinder 6, and the exit of gas cylinder 6 is connected with gas pipe 7 through valve fixed connection, and both ends of gas pipe 7 far away from gas cylinder 6 are provided with air jet 8, clamp grooves 20 have all been seted up at four end feet of outer wall in the bottom of protection casing 2, both sides of base 1.

Further, joint subassembly 3 includes sleeve 21, second spring 22 and cardboard 19, and sleeve 21 passes through the bolt fastening on the inner wall of base 1 groove, and sleeve 21's inside is provided with second spring 22, and cardboard 19 passes through second spring 22 swing joint in sleeve 21's inside, cardboard 19 and draw-in groove 20's specification looks adaptation, more convenient installation or dismantlement protection casing 2, simultaneously can be fine play the guard action to the lithium cell.

Further, there is battery cassette 9 through the bolt fastening on the outer wall at 1 top of base, and is provided with fixed subassembly 10 on one side inner wall of battery cassette 9, and fixed subassembly 10 includes first spring 17, and first spring 17 is equidistance structure fixed mounting in the inside of battery cassette 9, and the laminating of the one end that battery cassette 9 was kept away from to first spring 17 has splint 18, and stability battery body 11 that can be better has improved stability.

Further, there is temperature sensor 12 through the bolt fastening on the outer wall of battery cassette 9 one side, and is electric connection through the wire between temperature sensor 12 and the gas cylinder 6, and temperature sensor 12's model is TR/02016, detects its inside temperature through temperature sensor 12 to the degree that can quick stopping spontaneous combustion is opened to the solenoid valve of control gas cylinder 6 port department prevents the explosion, has improved the security performance.

Further, the outer wall of the top of the protective cover 2 is fixedly provided with a handle 13 through a bolt, and the inner wall of the battery clamping seat 9 is movably connected with a battery body 11, so that the structure is reasonable, and the use is convenient.

The working principle is as follows: when the protective cover is used, the protective cover 2 is installed or disassembled through the handle 13, when the protective cover 2 is installed or disassembled, the protective cover 2 can be installed or disassembled more conveniently through the matching of the clamping plate 19 and the second spring 22, the protective cover 2 can be fixed better, the stability is improved, the battery body 11 is placed into the battery clamping seat 9, the arranged first spring 17 and the clamping plate 18 can better fix the battery body 11, the stability of the lithium battery in the working process is improved, when the motor 14 drives the heat dissipation fan 15 to rotate, the heat in the protective cover 2 can be taken away, the heat is dissipated to the outside through the filter screen 16, the heat in the protective cover 2 is reduced, the service life of the battery body 11 is effectively prolonged, when the battery body 11 has spontaneous combustion phenomenon due to overhigh temperature, the temperature sensor 12 senses electric signals to be transferred to the gas cylinder 6, the gas cylinder 6 sprays carbon dioxide gas, the spontaneous combustion degree can be rapidly prevented, explosion is prevented, and the safety performance is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The ternary lithium ion battery with the explosion-proof protection function comprises a base (1) and a protective cover (2), and is characterized in that a motor (14) is fixed on the inner wall of the top of the protective cover (2) through bolts, a heat dissipation fan (15) is connected on an output shaft of the motor (14) in a transmission manner, filter screens (16) are arranged on two sides of the protective cover (2), a cavity (4) is arranged in the base (1), a gas cylinder fixing seat (5) is fixed on the top of the cavity (4) through bolts, a gas cylinder (6) is arranged in the gas cylinder fixing seat (5), a gas pipe (7) is fixedly connected at the outlet of the gas cylinder (6) through a valve, gas nozzles (8) are arranged at two ends of the gas pipe (7) far away from the gas cylinder (6), and clamping grooves (20) are formed in four end feet of the outer wall of the, the base (1) is close to both sides of protection casing (2) and all is provided with joint subassembly (3).

2. The ternary lithium ion battery with the explosion-proof protection function according to claim 1, wherein the clamping component (3) comprises a sleeve (21), a second spring (22) and a clamping plate (19), the sleeve (21) is fixed on the inner wall of the groove of the base (1) through a bolt, the second spring (22) is arranged inside the sleeve (21), the clamping plate (19) is movably connected inside the sleeve (21) through the second spring (22), and the clamping plate (19) is matched with the specification of the clamping groove (20).

3. The ternary lithium ion battery with the explosion-proof protection function is characterized in that a battery clamping seat (9) is fixed on the outer wall of the top of the base (1) through a bolt, a fixing component (10) is arranged on the inner wall of one side of the battery clamping seat (9), the fixing component (10) comprises a first spring (17), the first spring (17) is fixedly installed inside the battery clamping seat (9) in an equidistant structure, and a clamping plate (18) is attached to one end, away from the battery clamping seat (9), of the first spring (17).

4. The ternary lithium ion battery with the explosion-proof protection function according to claim 3, characterized in that a temperature sensor (12) is fixed on the outer wall of one side of the battery holder (9) through a bolt, and the temperature sensor (12) is electrically connected with the gas cylinder (6) through a wire.

5. The ternary lithium ion battery with the explosion-proof protection function according to claim 1, characterized in that a handle (13) is fixed on the outer wall of the top of the protection cover (2) through a bolt, and a battery body (11) is movably connected on the inner wall of the battery clamping seat (9).