CN215342705U

CN215342705U - Structural part for improving energy density of lithium battery for research

Info

Publication number: CN215342705U
Application number: CN202120858461.8U
Authority: CN
Inventors: 李武章; 励建炬
Original assignee: Jiangsu Kodali Precision Industry Co ltd
Current assignee: Jiangsu Kodali Precision Industry Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-12-28
Anticipated expiration: 2031-04-25

Abstract

The utility model discloses a structural member for improving the energy density of a lithium battery for research, which comprises a shell and a cover plate, wherein the cover plate is fixedly arranged at the top of the shell through a hexagon bolt; according to the utility model, through the matching of the wind caps, high temperature generated by the lithium battery in the shell can be timely dissipated without external force, the heat dissipation cost is reduced, the service life of the lithium battery is prolonged, external dust is prevented from entering the shell during heat dissipation, the phenomenon of heat dissipation difficulty caused by dust accumulation is further avoided, the heat dissipation efficiency is improved, the lithium battery is conveniently taken out of the shell, and the lithium battery is convenient to replace.

Description

Structural part for improving energy density of lithium battery for research

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a structural member for improving the energy density of a lithium battery.

Background

The lithium battery is composed of a positive electrode material, a negative electrode material, a diaphragm, electrolyte and a precise structural member, wherein the precise structural member mainly comprises a shell, a cover plate, a connecting sheet, a safety structural member and the like, and the tightness, the energy density and the like of the battery are directly influenced.

Wherein, the radiating effect of the casing of installation lithium cell also is the reason that influences lithium cell energy density, that is to say the power that radiating effect can the battery and life, but current lithium cell heat dissipation all adopts the electric drive heat dissipation, this electric quantity that also can consume the lithium cell during just making the heat dissipation, the life of lithium cell not only can be reduced, can accelerate lithium cell energy's consumption speed simultaneously, when current lithium cell heat dissipation simultaneously, do not do dustproof processing, long time is because piling up of dust, make the heat dissipation degree of difficulty further increase.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a structural member for improving the energy density of a lithium battery, so as to solve the problems of the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a structural member for improving the energy density of a lithium battery, comprising: the heat dissipation device comprises a shell and a cover plate, wherein the cover plate is fixedly installed at the top of the shell through a hexagon bolt, a heat dissipation assembly is arranged on the shell, and a positive through hole and a negative through hole are respectively formed in the upper surface of the cover plate.

Through adopting above-mentioned technical scheme, realized not borrowing external force down can in time distribute away the high temperature that produces by the lithium cell in the casing, when reducing the heat dissipation cost, improve the life of lithium cell, conveniently take out the lithium cell in the casing moreover, the change of the lithium cell of being convenient for.

Preferably, the heat dissipation assembly comprises an air cap, a heat dissipation opening is formed in the side face of the shell, an air inlet of the air cap is communicated with the heat dissipation opening, and an air inlet hole is formed in the opposite face, located on the heat dissipation opening, of the shell.

Through adopting above-mentioned technical scheme, through setting up the hood, can be in time, quick distribute away the high temperature that produces in the casing under the condition without external force, improve the life of lithium cell, reduce the heat dissipation cost.

Preferably, the side surface of the shell is positioned outside the air inlet hole and is provided with a limiting groove, and the inside of the limiting groove is fixedly connected with a filter screen through a hexagon screw.

Through adopting above-mentioned technical scheme, avoid external dust to get into in the casing, cause the pollution to the casing inside, reduce the radiating efficiency.

Preferably, the top of the positive through hole and the top of the negative through hole are both fixedly communicated with elastic sealing sleeves.

Through adopting above-mentioned technical scheme, avoid water to get into the inside of casing through anodal through-hole or negative pole through-hole, and then cause the erosion, damage to the lithium cell.

Preferably, the bottom of the inside of the shell is fixedly connected with a first limiting frame, and the bottom of the cover plate is fixedly connected with a second limiting frame.

Through adopting above-mentioned technical scheme, through the spacing frame of first spacing frame cooperation second, can fix the lithium cell firmly in the casing, avoid the lithium cell to damage because of external rocking.

Preferably, the inner wall and the outer wall of the hood are both coated with an epoxy polyester anti-oxidation coating.

By adopting the technical scheme, the air cap is prevented from being oxidized by air, and the service life of the air cap is prolonged.

Compared with the prior art, the utility model has the beneficial effects that:

through the cooperation of hood, can be with in the casing in the timely distribution away of the high temperature that produces by the lithium cell under the condition of not borrowing external force, reduce the heat dissipation cost, improve the life of lithium cell, avoid external dust to get into in the casing during the heat dissipation simultaneously, further avoid piling up the phenomenon that causes the heat dissipation poverty because of the dust, improve the radiating efficiency, conveniently take out the lithium cell in the casing in addition, the change of the lithium cell of being convenient for.

Drawings

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

FIG. 2 is a schematic structural view of a spacing groove of the present invention;

FIG. 3 is a schematic illustration of an explosive structure according to the present invention;

fig. 4 is a schematic structural diagram of a second limiting frame of the present invention.

In the figure: 1. a housing; 2. a cover plate; 3. a hexagon bolt; 4. an elastic sealing sleeve; 5. a hood; 6. a first limit frame; 7. an air inlet hole; 8. a limiting groove; 9. a heat dissipation port; 10. a positive electrode through hole; 12. a negative through-hole; 13. a filter screen; 14. a hex screw; 15. and a second limit frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

as shown in fig. 1 and 4, a structural member for research of increasing energy density of a lithium battery includes: the lithium battery pack comprises a shell 1 and a cover plate 2, wherein the shell 1 fixes the cover plate 2 at the top of the shell 1 through a hexagon bolt 3, in order to avoid the damage of the lithium battery due to external shaking, a first limiting frame 6 and a second limiting frame 15 are arranged, the first limiting frame 6 is fixedly connected to the bottom inside the shell 1, the second limiting frame 15 is fixedly connected to the bottom of the cover plate 2 and fixed, and the lithium battery can be firmly fixed in the shell 1 through the cooperation of the first limiting frame 6 and the second limiting frame 15;

as shown in fig. 1-3, in order to rapidly dissipate the high temperature of the casing 1 in time, a structural member for improving the energy density of the lithium battery is provided with a heat dissipation assembly, the heat dissipation assembly comprises an air cap 5, in order to draw hot air from the inside of the casing 1 and simultaneously enable fresh air to enter the casing 1, a heat dissipation port 9 is formed in the side surface of the casing 1, the heat dissipation port 9 is communicated with an air inlet of the air cap 5, an air inlet hole 7 is formed in the opposite surface of the casing 1, which is positioned on the heat dissipation port 9, and when the air cap 5 starts to rotate, the structural member for improving the energy density of the lithium battery is rapidly cooled through the cooperation of the heat dissipation port 9, the air inlet hole 7 and the air cap 5;

as shown in fig. 1-3, in order to avoid the air cap 5 from being oxidized by air and prolong the service life of the air cap 5, the inner wall and the outer wall of the air cap 5 are coated with epoxy polyester anti-oxidation coatings, so as to avoid external dust from entering the casing 1 and polluting the inside of the casing 1, and reduce the heat dissipation efficiency, a limiting groove 8 is formed in the side surface of the casing 1 and positioned outside the air inlet 7, a filter screen 13 is fixedly connected inside the limiting groove 8 through a hexagon screw 14, when the filter screen 13 is damaged, the filter screen 13 is convenient to replace through the hexagon screw 14, and time and labor are saved;

the heat dissipation principle of the heat dissipation assembly is as follows: when the lithium cell is in the in-process of work, because the high temperature that work produced makes the inside temperature of casing 1 rise gradually, under the effect of atmospheric pressure, hood 5 begins to rotate, takes out steam from the inside of casing 1, and fresh air passes through fresh air inlet 7 and gets into in the casing 1 simultaneously, has played rapid cooling's function.

As shown in fig. 3 and 4, the positive through hole 10 and the negative through hole 12 are respectively formed in the upper surface of the cover plate 2, and the elastic sealing sleeves 4 are fixedly communicated with the top of the positive through hole 10 and the top of the negative through hole 12, so as to prevent water from entering the inside of the case 1 through the positive through hole 10 or the negative through hole 12 and from corroding and damaging the lithium battery.

According to the technical scheme, the working steps of the scheme are summarized and carded:

during the use, put into the lithium cell through inside first spacing frame 6, then fix apron 2 inside casing 1 through hex bolts 3, spacing frame 15 of second is further spacing to the lithium cell simultaneously, further strengthen the stability of lithium cell, during the lithium cell work, the heat that the lithium cell sent can spread in casing 1, after the inside temperature of casing 1 rises gradually, atmospheric pressure and external atmospheric pressure in casing 1 form pressure differential, according to the atmospheric pressure principle, hood 5 can pressure drive, take out the high-temperature gas in casing 1, realize in real time, quick heat dissipation work, improve the life of lithium cell, fresh air gets into in casing 1 after filter 13 filters simultaneously, avoid external dust to get into in the casing, further avoid piling up because of the dust and cause the phenomenon that the heat dissipation is stranded.

The parts not involved in the present invention are the same as or can be implemented by the prior art. 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 utility model provides an improve research of lithium cell energy density and use structure which characterized in that includes: casing (1) and apron (2), apron (2) are in through hex bolts (3) fixed mounting the top of casing (1), be provided with radiator unit on casing (1), anodal through-hole (10) and negative pole through-hole (12) have been seted up respectively to the upper surface of apron (2).

2. The structural member for research of increasing energy density of lithium battery as claimed in claim 1, wherein: the heat dissipation assembly comprises an air cap (5), a heat dissipation opening (9) is formed in the side face of the shell (1), an air inlet of the air cap (5) is communicated with the heat dissipation opening (9), and an air inlet hole (7) is formed in the opposite face of the shell (1) located on the heat dissipation opening (9).

3. The structural member for research of increasing energy density of lithium battery as claimed in claim 2, wherein: the side of the shell (1) is located outside the air inlet hole (7) and is provided with a limiting groove (8), and the inside of the limiting groove (8) is fixedly connected with a filter screen (13) through a hexagon screw (14).

4. The structural member for research of increasing energy density of lithium battery as claimed in claim 3, wherein: and the top of the positive through hole (10) and the top of the negative through hole (12) are fixedly communicated with an elastic sealing sleeve (4).

5. The structural member for research of increasing energy density of lithium battery as claimed in claim 4, wherein: the inner bottom of the shell (1) is fixedly connected with a first limiting frame (6), and the bottom of the cover plate (2) is fixedly connected with a second limiting frame (15).

6. The structural member for research of increasing energy density of lithium battery as claimed in claim 5, wherein: the inner wall and the outer wall of the blast cap (5) are both coated with an epoxy polyester anti-oxidation coating.