CN218677208U - Inside safety protection mechanism of square battery - Google Patents

Abstract

The utility model discloses an inside safety protection mechanism of square battery, which comprises an outer shell, the shell top is equipped with the apron, be equipped with the inner shell in the shell, shell and the coaxial setting of inner shell, the inner shell intussuseption is filled with the sponge, the locating hole that a plurality of matrixes were arranged is seted up to the sponge upper end. This kind of protection architecture effectively improves the vibration security performance of electric core, has good insulating effect, is convenient for operate, replaces the inside safety protection mechanism of traditional square electric core, when improving the security performance, improves effectual improvement energy density.

Description

Inside safety protection mechanism of square battery

Technical Field

The utility model relates to a lithium cell safety technical field specifically is an inside safety protection mechanism of square battery.

Background

The lithium battery is a primary battery using lithium metal or lithium alloy as a negative electrode material and using a non-aqueous electrolyte solution, unlike a lithium ion battery, which is a rechargeable battery, and a lithium ion polymer battery. The inventor of lithium batteries was edison. Because the chemical characteristics of lithium metal are very active, the lithium metal has very high requirements on the environment in processing, storage and use. Therefore, lithium batteries have not been used for a long time. With the development of microelectronic technology at the end of the twentieth century, miniaturized devices are increasing, and high requirements are made on power supplies. The lithium battery has then entered a large-scale practical stage.

At present, the internal structure of a square battery shell is as follows: the core bag protection film of parcel electric core also has the bottom plate board of electric core bottom, and these two kinds of structures mainly prevent that electric core and casing from taking place the short circuit, do this insulating layer specially, prevent that electric core casing from corroding and taking place to open circuit, and these two kinds of structures have played higher prevention under quiescent condition and have suffered from the effect. But all be in motion state at most time in the actual new energy automobile use, electric core inside does not have buffer function, and electric core is rocking down repeatedly to the phenomenon that leads to electric core to appear damaging takes place, has reduced the life of electric core, for this reason, we have proposed the inside safety protection mechanism of square battery.

SUMMERY OF THE UTILITY MODEL

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an inside safety protection mechanism of square battery, includes the shell, the shell top is equipped with the apron, be equipped with the inner shell in the shell, the shell sets up with the inner shell is coaxial, the inner shell intussuseption is filled with the sponge, the locating hole that a plurality of matrixes were arranged is seted up to the sponge upper end.

Preferably, the end parts of the two sides of the inner shell are respectively provided with a spring, and the other end of each spring is fixedly connected with the inner wall of the outer shell.

Preferably, the middle parts of two sides of the inner shell are respectively provided with a first connecting block, the inner wall of the outer shell is provided with a second connecting block matched with the first connecting block, two ends of the first connecting block are movably connected with the first connecting rod through a pin shaft, two ends of the second connecting block are movably connected with the second connecting rod through a pin shaft, and the first connecting rod and the second connecting rod are movably connected through a pin shaft.

Preferably, one side above the shell is provided with a positive terminal, and the other side of the shell is provided with a negative terminal.

Preferably, the mounting plates are arranged on two sides below the shell, and mounting holes are formed in the mounting plates.

Preferably, the number of the mounting holes on each mounting plate is not less than three.

Preferably, the shell and the cover plate are welded by hot melting.

Preferably, the outer shell and the inner shell are both metal aluminum shells.

Compared with the prior art, the beneficial effects of the utility model are that: this kind of inside safety protection mechanism of square battery, the sponge has replaced traditional core package protection film and bottom plate board, the sponge is comparatively soft, electric core is located inside the sponge, effectual collision to between the electric core cushions, the imagination that electric core collision and damage has been avoided takes place, thereby the effectual safety in utilization that improves the battery, and simultaneously, the sponge has insulating function, can avoid completely electric core short circuit risk, the sponge has loose porous structure, can effectively absorb electrolyte, inside electrolyte can effectively absorb gets into electric core by the free end, do not influence the infiltration of electric core electrolyte to electric core completely. This kind of protection architecture effectively improves the vibration security performance of electric core, has good insulating effect, is convenient for operate, replaces the inside safety protection mechanism of traditional square electric core, when improving the security performance, improves effectual improvement energy density.

Drawings

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

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic diagram of the sponge structure of the present invention;

in the figure: the connecting structure comprises an outer shell 1, a cover plate 2, an inner shell 3, sponge 4, positioning holes 5, springs 6, a first connecting block 7, a second connecting block 8, a first connecting rod 9, a second connecting rod 10, a positive terminal 11, a negative terminal 12, a mounting plate 13 and a mounting hole 14.

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.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an inside safety protection mechanism of square battery, includes shell 1, 1 top of shell is equipped with apron 2, be equipped with inner shell 3 in the shell 1, shell 1 and the coaxial setting of inner shell 3, shell 1 protects the inner shell, prevents that shell 1 from damaging because of colliding with in the transportation, the intussuseption of inner shell 3 is filled with sponge 4, and sponge 4 has replaced traditional core package protection film and bottom plate, and sponge 4 is comparatively soft, and electric core is located inside sponge 4, and effectual collision to between the electric core cushions, has avoided the imagination of electric core collision and damage to the effectual use security that improves the battery, simultaneously, sponge 4 has insulating function, can avoid electric core short circuit risk completely, and sponge 4 has loose porous structure, can effectively absorb electrolyte, and inside electrolyte can effectively absorb gets into electric core by the free end, does not influence the infiltration of electric core electrolyte to electric core completely, sponge 4 upper end has seted up the locating hole 5 that a plurality of matrix were arranged, and locating hole 5 can fix a position electric core.

Further say, 3 both sides tip of inner shell all is equipped with spring 6, the 6 other end of spring and 1 inner wall fixed connection of shell, spring 6 have the effect of buffering, when transporting the battery, through spring 6's elasticity, can effectually cushion the collision that the shell 1 received to avoid shell 1 to collide with and damage at the crust body 1.

Further, 3 both sides middle parts of inner shell all are equipped with first connecting block 7, 1 inner wall of shell is equipped with and first connecting block 7 assorted second connecting block 8, round pin axle and first connecting rod 9 swing joint are passed through at 7 both ends of first connecting block, 8 both ends of second connecting block are through round pin axle and second connecting rod 10 swing joint, round pin axle swing joint has been heard with second connecting rod 10 to first connecting rod 9, and when shell 1 received the extrusion, first connecting rod 9 rotated around first connecting block 7, and second connecting rod 10 rotated around second connecting block 8 to mutually supporting between 10 and the spring 6 is connected through first connecting rod 9 and second, the buffering that can effectual reduction shell 1 received, thereby improve the protective effect to the battery.

Furthermore, a positive terminal 11 is arranged on one side above the shell 1, a negative terminal 12 is arranged on the other side of the shell 1, and the battery can perform discharge operation through the positive terminal 11 and the negative terminal 12.

Further, 1 below both sides of shell all are equipped with mounting panel 13, mounting hole 14 has been seted up on the mounting panel 13, and mounting panel 13 and 1 bit of integral type structure of shell can fix a position the battery through mounting hole 14.

Furthermore, the number of the mounting holes 14 on each mounting plate 13 is not less than three, and the number of the mounting holes 14 is not less than three, so that the overall mounting stability of the battery can be effectively improved.

Furthermore, the shell 1 and the cover plate 2 are welded by hot melting, and the shell 1 and the cover plate 2 are fixed by dispensing, so that the purpose of sealing the shell 1 and the cover plate 2 is achieved.

Further, the outer shell 1 and the inner shell 3 are both metal aluminum shells, the metal aluminum structure is strong, and the heat dissipation effect is good, so that the heat dissipation effect of the battery is effectively guaranteed.

Specifically, in the utility model, the sponge 4 replaces the traditional core cladding protective film and bottom supporting plate, the sponge 4 is relatively soft, the electric core is positioned inside the sponge 4, the collision between the electric cores is effectively buffered, the imagination that the electric core is damaged by collision is avoided, thereby the use safety of the battery is effectively improved, simultaneously, the sponge 4 has an insulation function, the short circuit risk of the electric core can be completely avoided, the sponge 4 has a loose and porous structure, can effectively absorb the electrolyte, the electrolyte can effectively absorb the electrolyte entering the electric core from the free end, and the infiltration of the electric core electrolyte to the electric core is not affected completely,

although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an inside safety protection mechanism of square battery, includes shell (1), its characterized in that: a cover plate (2) is arranged above the outer shell (1), an inner shell (3) is arranged in the outer shell (1), the outer shell (1) and the inner shell (3) are coaxially arranged, a sponge (4) is filled in the inner shell (3), and a plurality of positioning holes (5) which are arranged in a matrix mode are formed in the upper end of the sponge (4); springs (6) are arranged at the end parts of the two sides of the inner shell (3), and the other ends of the springs (6) are fixedly connected with the inner wall of the outer shell (1); inner shell (3) both sides middle part all is equipped with first connecting block (7), shell (1) inner wall be equipped with first connecting block (7) assorted second connecting block (8), round pin axle and first connecting rod (9) swing joint are passed through at first connecting block (7) both ends, round pin axle and second connecting rod (10) swing joint are passed through at second connecting block (8) both ends, round pin axle swing joint has been listened with second connecting rod (10) in first connecting rod (9).

2. The internal safety protection mechanism of a square battery according to claim 1, wherein: a positive terminal (11) is arranged on one side above the shell (1), and a negative terminal (12) is arranged on the other side of the shell (1).

3. The internal safety protection mechanism of a square battery according to claim 1, wherein: the mounting plate (13) is arranged on each of two sides below the shell (1), and mounting holes (14) are formed in the mounting plates (13).

4. The internal safety protection mechanism for square battery according to claim 3, wherein: and the number of the mounting holes (14) on each mounting plate (13) is not less than three.

5. The internal safety protection mechanism of a square battery according to claim 1, wherein: the shell (1) and the cover plate (2) are welded through hot melting.

6. The internal safety protection mechanism of a square battery according to claim 1, wherein: the outer shell (1) and the inner shell (3) are both metal aluminum shells.

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