CN219534597U - Lithium ion battery with protection structure - Google Patents

Abstract

The utility model discloses a lithium ion battery with a protective structure, which comprises a lower cover, wherein the lower cover is provided with a lower cover; the inside of lower cover is provided with the battery jar, the bottom sliding connection of battery jar has the roof, the bottom fixedly connected with of roof is gone up the fixed block. When the lithium ion battery with the protection structure is used, the lithium ion battery is placed in the battery groove and locked, when equipment using the lithium ion battery is impacted and spontaneously burned greatly, the top plate is subjected to larger pressure and acts on the spring at the bottom to exert opposite force, when the spring is subjected to a certain pressure critical value, the protruding needle in the spring is displaced downwards and punctures the protruding needle plate and the carbon dioxide air bag, after the carbon dioxide air bag is punctured, carbon dioxide gas stored in the interior can instantaneously flow out from the punctured hole until the interior of the whole battery groove is filled, and at the moment, the surrounding space of the whole lithium ion battery is wrapped by the carbon dioxide gas, so that the effect of isolating oxygen and achieving flame retardance is achieved.

Description

Lithium ion battery with protection structure

Technical Field

The utility model relates to the technical field of lithium ion batteries, in particular to a lithium ion battery with a protection structure.

Background

Lithium-based batteries are classified into lithium batteries and lithium ion batteries. Lithium ion batteries are used for mobile phones and notebook computers, and are commonly known as lithium batteries. Batteries generally employ materials containing lithium as electrodes, which are representative of modern high performance batteries. The real lithium battery is rarely applied to daily electronic products due to high risk, so the lithium ion battery with a protective structure can be attached to the lithium battery when the lithium battery is used.

The lithium ion battery with the current protection structure is easy to spontaneously ignite when being impacted or extruded severely due to the specificity of the lithium ion battery, and is mostly of a structure of adding anti-collision and pressure-reducing during protection, so that the lithium ion battery has certain safety during use.

The lithium ion battery with most of the current protection structures is single in the structure of use and has an external structure for protecting the battery, and is provided with a plurality of simple anti-collision and decompression structures, but when the storage battery is impacted by a great force, spontaneous combustion is caused, so that the battery with spontaneous combustion is extremely harmful, and a fire disaster is easy to occur to cause larger economic loss.

Disclosure of Invention

The utility model aims to provide a lithium ion battery with a protective structure, which has the advantages of oxygen isolation and flame retardance and solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a lithium ion battery with a protective structure comprises a lower cover; the inside of lower cover is provided with the battery jar, the bottom sliding connection of battery jar has the roof, the bottom fixedly connected with of roof is three go up the fixed block, and is three go up the equal fixedly connected with spring of bottom of fixed block, the bottom fixedly connected with of spring is fixed block down, the bottom fixedly connected with of fixed block is burst the thorn board down, the bottom of burst the thorn board is provided with the carbon dioxide gasbag, the bottom fixedly connected with of going up the fixed block is burst the thorn needle, the inside of spring is located to the thorn needle cover, and the roof can be based on the intensity that battery in the battery jar rocked to the lower pressure, the spring makes roof and burst to keep safe distance between the thorn board, and the inside carbon dioxide gas of the inside carbon dioxide gasbag of the twinkling of an eye of puncture can impale and burst the thorn board when breaking the critical point for whole battery jar is inside to be full of carbon dioxide gas, further reaching fire-retardant effect, a plurality of holes that can supply carbon dioxide gas to pass are offered to the inside of roof.

Preferably, the outside cover of lower cover is equipped with flexible cover, the top cover of flexible cover is equipped with the upper cover, upper cover and lower cover combination become a complete battery protection storehouse, flexible cover belongs to insulating fire prevention's material, and high temperature resistant, the inside of upper cover all is provided with the structure the same as the inside of lower cover.

Preferably, the top fixedly connected with of lower cover is female pole, two a plurality of round holes have been seted up to the outside of female pole, the inside cover of female pole is equipped with the son pole, son pole fixed connection is in the bottom of upper cover, the son pole can slide and spacing from top to bottom in the inside of female pole, further can adjust the inside space of battery jar.

Preferably, the inside of son pole has seted up the spout, the bottom fixedly connected with reset spring of spout, reset spring's tip fixedly connected with knob and extend the outside of son pole, the inside of entering the round hole can be established to the knob to accomplish spacing function.

Preferably, the back fixedly connected with fixed strip of upper cover, the left end fixedly connected with son buckle of fixed strip, the right-hand member fixedly connected with pivot of fixed strip, the fixed strip belongs to threaded connection and is convenient for later stage dismantlement.

Preferably, the inside cover of son buckle is equipped with the stay cord, the outside rotation of pivot is connected with female buckle, the stay cord belongs to the material that has elasticity, and the material is comparatively durable, the inside of female buckle can be gone into to the stay cord to reach the effect of fixed whole device.

Preferably, the carbon dioxide gas bag is provided with the sleeve shaft in the place where the carbon dioxide gas bag contacts with the inner walls of the upper cover and the lower cover and extends out of the upper cover and the lower cover, the inner part of the sleeve shaft is sleeved with an inflation inlet, and the inflation inlet belongs to the prior art structure, can be inflated and stored automatically without air leakage.

Compared with the prior art, the utility model has the following beneficial effects: when the lithium ion battery with the protective structure is used, the lithium ion battery is placed in the battery groove and locked, when equipment using the lithium ion battery is impacted and spontaneously ignited greatly, the top plate is subjected to larger pressure and acts on the spring at the bottom to act on opposite force, when the spring is subjected to a certain pressure critical value, the protruding needle in the spring can move downwards, the protruding needle plate and the carbon dioxide air bag are pierced, after the carbon dioxide air bag is pierced, the carbon dioxide gas stored in the inside can flow out from the pierced hole instantly until the inside of the whole battery groove is filled, and at the moment, the surrounding space of the whole lithium ion battery is wrapped by the carbon dioxide gas, so that the effect of isolating oxygen and achieving flame retardance is achieved.

Drawings

Fig. 1 is a schematic structural diagram of a lithium ion battery with a protection structure according to the present utility model;

fig. 2 is a schematic diagram of an internal structure of a lithium ion battery with a protection structure according to the present utility model;

FIG. 3 is a schematic view of the inner structure of the lower cover of the present utility model;

FIG. 4 is an enlarged schematic view of the internal structure of FIG. 2A according to the present utility model;

fig. 5 is a schematic view of the back structure of the upper cover of the present utility model.

In the figure: 1. an upper cover; 2. a telescoping shield; 3. a lower cover; 4. a sleeve shaft; 5. an inflation inlet; 6. a sub-rod; 7. a female rod; 8. a round hole; 9. a carbon dioxide gas bag; 10. a spur plate; 11. a lower fixing block; 12. a spring; 13. a protruding needle; 14. an upper fixing block; 15. a top plate; 16. a knob; 17. a chute; 18. a return spring; 19. a fixing strip; 20. a sub-buckle; 21. a pull rope; 22. a rotating shaft; 23. a female buckle; 24. and a battery jar.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 5, the present utility model provides a technical solution: a lithium ion battery with a protective structure comprises a lower cover 3; the inside of lower cover 3 is provided with battery jar 24, the bottom sliding connection of battery jar 24 has roof 15, the bottom fixedly connected with of roof 15 goes up fixed block 14, the bottom of all fixedly connected with spring 12 of three last fixed block 14, the bottom fixedly connected with of spring 12 is fixed block 11 down, the bottom fixedly connected with of lower fixed block 11 is abrupt the thorn board 10, the bottom of abrupt thorn board 10 is provided with carbon dioxide gasbag 9, the bottom fixedly connected with of going up fixed block 14 is abrupt the needle 13, the inside of spring 12 is located to the spike 13 cover, roof 15 can be according to the inside battery of battery jar 24 and rock the severe degree to the lower pressure that produces, spring 12 makes roof 15 and abrupt thorn board 10 keep safe distance, when if break the critical point, spike 13 can puncture abrupt thorn board 10, the inside carbon dioxide gas of the instantaneous carbon dioxide gasbag 9 of puncture can release rapidly, make whole battery jar 24 inside be full of carbon dioxide gas, further reach fire-retardant effect, a plurality of holes that can supply carbon dioxide gas to pass are offered to the inside of roof 15.

The outside cover of lower cover 3 is equipped with flexible cover 2, and the top cover of flexible cover 2 is equipped with upper cover 1, and upper cover 1 and lower cover 3 make up into a complete battery protection storehouse, and flexible cover 2 belongs to insulating fire prevention's material, and high temperature resistant, and the inside of upper cover 1 all is provided with the structure the same as the inside of lower cover 3.

The top fixedly connected with of lower cover 3 female pole 7, a plurality of round holes 8 have been seted up to the outside of two female poles 7, and the inside cover of female pole 7 is equipped with son pole 6, and son pole 6 fixed connection is in the bottom of upper cover 1, and son pole 6 can slide and spacing from top to bottom in the inside of female pole 7, further can adjust the inside space of battery jar 24.

The inside of the sub-rod 6 is provided with a chute 17, the bottom of the chute 17 is fixedly connected with a return spring 18, the end part of the return spring 18 is fixedly connected with a convex button 16 and extends out of the sub-rod 6, and the convex button 16 can be clamped into the round hole 8, so that the limiting function is completed.

The back fixedly connected with fixed strip 19 of upper cover 1, the left end fixedly connected with son buckle 20 of fixed strip 19, the right-hand member fixedly connected with pivot 22 of fixed strip 19, fixed strip 19 belongs to threaded connection and is convenient for later stage dismantlement.

The inside cover of son buckle 20 is equipped with stay cord 21, and the outside rotation of pivot 22 is connected with female buckle 23, and stay cord 21 belongs to the material that has elasticity, and the material is comparatively durable, and the inside of female buckle 23 can be gone into to the stay cord 21 to reach the effect of fixed whole device.

The carbon dioxide gasbag 9 all is provided with sleeve 4 and extends the outside of upper cover 1 and lower cover 3 with upper cover 1 and the contact of lower cover 3 inner wall place, and the inside cover of sleeve 4 is equipped with inflation inlet 5, and inflation inlet 5 belongs to prior art structure, can aerify the self-holding and can not leak gas.

Working principle: when the lithium ion battery with the protective structure is used, the lithium ion battery is placed in the battery groove 24 and locked, when equipment using the lithium ion battery is impacted and spontaneously burned greatly, the top plate 15 is subjected to larger pressure and acts on the spring 12 at the bottom simultaneously, when the spring 12 is subjected to a certain pressure critical value, the protruding needle 13 in the spring 12 is displaced downwards and punctures the protruding needle plate 10 and the carbon dioxide gas bag 9, after the carbon dioxide gas bag 9 is punctured, the internally stored carbon dioxide gas can flow out from the punctured hole instantly until the whole battery groove 24 is filled with the carbon dioxide gas, and at the moment, the surrounding space of the whole lithium ion battery is wrapped by the carbon dioxide gas.

The standard components used in the present embodiment may be purchased directly from the market, but the nonstandard structural components according to the descriptions of the specification and the drawings may also be obtained by unambiguous processing according to the conventional technical knowledge, and meanwhile, the connection manner of each component adopts the conventional means mature in the prior art, and the machinery, the components and the equipment all adopt the conventional types in the prior art, so that the specific description will not be made here.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 (7)

1. A lithium ion battery with a protective structure comprises a lower cover (3); the method is characterized in that: the inside of lower cover (3) is provided with battery jar (24), the bottom sliding connection of battery jar (24) has roof (15), the bottom fixedly connected with of roof (15) goes up fixed block (14), three the equal fixedly connected with spring (12) in bottom of going up fixed block (14), the bottom fixedly connected with of spring (12) is fixed block (11) down, the bottom fixedly connected with of lower fixed block (11) is protruding thorn board (10), the bottom of protruding thorn board (10) is provided with carbon dioxide gasbag (9), the bottom fixedly connected with of going up fixed block (14) is protruding pjncture needle (13), the inside of spring (12) is located to the pjncture needle (13) cover.

2. The lithium ion battery with a protective structure according to claim 1, wherein: the outer cover of lower cover (3) is equipped with flexible cover (2), the top cover of flexible cover (2) is equipped with upper cover (1).

3. The lithium ion battery with a protective structure according to claim 1, wherein: the top fixedly connected with of lower cover (3) is female pole (7), two a plurality of round holes (8) have been seted up to the outside of female pole (7), the inside cover of female pole (7) is equipped with son pole (6), son pole (6) fixed connection is in the bottom of upper cover (1).

4. The lithium ion battery with a protective structure according to claim 3, wherein: the sliding groove (17) is formed in the sub-rod (6), a reset spring (18) is fixedly connected to the bottom of the sliding groove (17), and a protruding button (16) is fixedly connected to the end portion of the reset spring (18) and extends out of the sub-rod (6).

5. The lithium ion battery with a protective structure according to claim 2, wherein: the back fixedly connected with fixed strip (19) of upper cover (1), the left end fixedly connected with son buckle (20) of fixed strip (19), the right-hand member fixedly connected with pivot (22) of fixed strip (19).

6. The lithium ion battery with a protective structure according to claim 5, wherein: the inside cover of son buckle (20) is equipped with stay cord (21), the outside rotation of pivot (22) is connected with female buckle (23).

7. The lithium ion battery with a protective structure according to claim 1, wherein: the carbon dioxide air bags (9) are respectively provided with a sleeve shaft (4) at the contact positions of the inner walls of the upper cover (1) and the lower cover (3) and extend out of the upper cover (1) and the lower cover (3), and an inflation inlet (5) is sleeved in the sleeve shafts (4).