CN210607539U

CN210607539U - Square-shell lithium battery module heat dissipation system

Info

Publication number: CN210607539U
Application number: CN201922165397.0U
Authority: CN
Inventors: 王自强
Original assignee: Jiangsu Qiangjin New Energy Technology Co ltd
Current assignee: Jiangsu Qiangjin New Energy Technology Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-05-22
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a square shell lithium cell module cooling system, including module main part, radiating area, capillary heat pipe and heat conduction silica gel piece, the radiating area has been seted up to the outside of module main part, the internally mounted capillary heat pipe of module main part, capillary heat pipe's one end is the hot junction, capillary heat pipe's the other end is the cold junction. This square shell lithium battery module cooling system, through being in the same place the inseparable combination of battery core and capillary heat pipe, the better radiating problem of lithium battery module of having solved is not convenient for in narrow and small space, owing to spill inside battery core in the outside of casing, when the battery core operation produces high temperature, the inside methanol liquid of capillary heat pipe will become the steam and take away the heat of battery core, then circulation backward flow once more, thereby incessant carry out the heat dissipation treatment to the higher battery core of temperature, overall structure is simple, the fast radiating efficiency of thermal response speed is high, small weight is light, very the heat dissipation demand in the suitable narrow and small space, the practicality is stronger.

Description

Square-shell lithium battery module heat dissipation system

Technical Field

The utility model relates to a lithium cell heat dissipation technical field specifically is a square shell lithium cell module cooling system.

Background

Lithium batteries, which are batteries using lithium metal or lithium alloy as a negative electrode material and using a non-aqueous electrolyte solution, have very high environmental requirements for processing, storing and using the lithium metal due to the very active chemical properties of the lithium metal, and can be roughly divided into two types: lithium metal batteries and lithium ion batteries, which do not contain lithium in the metallic state and are rechargeable.

The square shell lithium battery module heat dissipation on the present market mostly adopts the air-cooled mode to dispel the heat, and the air-cooled needs to install inside great space when using, then just can normal operation get up, has certain limitation during the use, does not utilize the inside heat dissipation processing in narrow and small space very much, and the radiating efficiency when using is not strong, can't be when lithium battery temperature is higher with the rapid falling of temperature, and the functionality is relatively poor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a square shell lithium battery module cooling system, it adopts the air-cooled mode to dispel the heat to have solved the square shell lithium battery module heat dissipation on the current market mostly, and the air-cooled needs install inside great space when using, then just can normal operation get up, there is certain limitation during the use, do not utilize the inside thermal treatment in narrow and small space very much, the radiating efficiency when using is not strong, can't fall the temperature rapidly when the lithium cell temperature is higher, the relatively poor problem of functionality.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a square-shell lithium battery module heat dissipation system, includes module main part, radiating area, capillary heat pipe and heat conduction silica gel piece, the radiating area has been seted up to the outside of module main part, the internally mounted capillary heat pipe of module main part, the one end of capillary heat pipe is the hot junction, the other end of capillary heat pipe is the cold junction, the laminating of one end of capillary heat pipe is on the surface of battery core, the laminating of the other end of capillary heat pipe is in the bottom of fin.

Preferably, the top of the module main body is provided with output ends, and the output ends are symmetrically distributed.

Preferably, the heat dissipation area is in an evenly distributed form, the heat dissipation plate is connected to the outside of the heat dissipation area in an embedded mode, and the heat dissipation plate is made of copper sheets.

Preferably, a shell is arranged outside the battery core, an opening is formed in the shell, and the inside of the opening is connected with the capillary heat pipe through heat-conducting silicone grease.

Preferably, the top of the capillary heat pipe is bonded with a heat conduction silica gel sheet, and the heat conduction silica gel sheet is bonded at the bottom of the radiating fin.

Preferably, the capillary heat pipes are evenly distributed, the outer parts of the capillary heat pipes are mounted on the outer surface of the shell through clamping blocks, and methanol liquid is filled in the capillary heat pipes.

(III) advantageous effects

The utility model provides a square shell lithium cell module cooling system. The method has the following beneficial effects:

(1) the square-shell lithium battery module heat dissipation system well solves the problem that a lithium battery module is inconvenient to dissipate heat in a narrow space by tightly combining the battery core and the capillary heat pipe, the heat end of the capillary heat pipe is attached to the outside of the battery core and the cold end of the capillary heat pipe is attached to the bottom of the heat dissipation fin due to the fact that the circular opening is formed in the outside of the shell, when the battery core runs to generate high temperature, methanol liquid in the capillary heat pipe can be changed into water vapor which takes away heat of the battery core along the capillary structure, and finally the methanol liquid begins to liquefy and then circulates back again after the water vapor passes through the cold end and is dissipated out through the heat dissipation fin, so that the battery core with higher temperature is subjected to heat dissipation treatment uninterruptedly, the whole structure is simple, the thermal response speed is high, and the heat dissipation efficiency is high, the LED lamp is small in size and light in weight, is very suitable for the heat dissipation requirement in a narrow space, and is high in practicability;

(2) this square shell lithium cell module cooling system, there are four radiating areas through the outside division at the module main part, and the surface mosaic in each radiating area has the fin that the copper sheet was made, when the cold junction of capillary heat pipe was through the fin, play the function of heat transfer by heat conduction silica gel piece, go out rapid the heat of dispersing, when four fins dispel the heat simultaneously, can be rapid with the inside battery core temperature of module fall, efficiency when having promoted the heat dissipation greatly, and heat conduction silica gel piece can also play the shock attenuation, avoid taking place frictional function between capillary heat pipe and the copper sheet, comparatively practicality during the application.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

FIG. 2 is a schematic view of the internal structure of the module main body according to the present invention;

fig. 3 is a schematic view of the capillary heat pipe structure of the present invention.

In the figure, a module main body-1, a heat dissipation area-2, a heat dissipation sheet-3, a battery core-4, a shell-5, an opening-6, heat conduction silicone grease-7, a capillary heat pipe-8, a heat conduction silicone sheet-9, a clamping block-10, an output end-11 and methanol liquid-12.

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, an embodiment of the present invention provides a technical solution: the utility model provides a square-shell lithium battery module cooling system, includes module main part 1, radiating area 2, capillary heat pipe 8 and heat conduction silica gel piece 9, radiating area 2 has been seted up to the outside of module main part 1, the internally mounted capillary heat pipe 8 of module main part 1, the one end of capillary heat pipe 8 is the hot junction, the other end of capillary heat pipe 8 is the cold junction, the laminating of the one end of capillary heat pipe 8 is on the surface of battery core 4, the laminating of the other end of capillary heat pipe 8 is in the bottom of fin 3.

The top of module main part 1 is equipped with output 11, output 11 is the symmetric distribution form, through the output 11 that is equipped with, can carry out the transmission of electric power after this battery module installation.

The radiating area 2 is in an evenly distributed form, the radiating fins 3 are connected to the outside of the radiating area 2 in an embedded mode, the radiating fins 3 are made of copper sheets, radiating fins 3 made of the copper sheets can improve the radiating effect of heat, and the functionality is strong.

The outside of battery core 4 is equipped with casing 5, opening 6 has been seted up to the outside of casing 5, capillary heat pipe 8 is connected through heat conduction silicone grease 7 in the inside of opening 6, is equipped with opening 6 through the outside at casing 5, can come to contact with capillary heat pipe 8 with battery core 4 direct naked to make heat-conducting efficiency better, the practicality is stronger.

The heat conduction silica gel piece 9 bonds at the top of capillary heat pipe 8, heat conduction silica gel piece 9 bonds in the bottom of fin 3, through be equipped with heat conduction silica gel piece 9 between capillary heat pipe 8 and fin 3, can play the shock attenuation, avoid taking place the function of friction between capillary heat pipe 8 and the copper sheet, comparatively practical.

The capillary heat pipes 8 are in an evenly distributed form, the outer portions of the capillary heat pipes 8 are installed on the outer surface of the shell 5 through clamping blocks 10, methanol liquid 12 is filled in the capillary heat pipes 8, the methanol liquid 12 is filled in the capillary heat pipes 8, when the hot ends of the capillary heat pipes 8 are heated, the methanol liquid 12 can be rapidly gasified, then heat is taken away, and the heat dissipation efficiency is high.

The working principle is as follows: when the square-shell lithium battery module heat dissipation system is used, firstly, four heat dissipation areas 2 are arranged outside the module main body 1 and are combined with the capillary heat pipe 8 inside the module main body 1, when the battery core 4 generates higher temperature during operation, because the circular opening 6 is formed outside the shell 5, the battery core 4 inside the shell is exposed, the hot end of the capillary heat pipe 8 can be attached to the outside of the battery core 4, and the contact part between the battery core 4 and the capillary heat pipe 8 is coated with the heat conduction silicone grease 7, the air gap between the hot end of the capillary heat pipe 8 and the battery core 4 can be filled, so that the heat on the battery core 4 can be effectively conducted to the capillary heat pipe 8, the thermal coupling between the battery core 4 and the capillary heat pipe 8 is better increased, the thermal resistance is reduced, and then the cold end of the capillary heat pipe 8 is attached to the bottom of the heat dissipation sheet 3, therefore, when the high temperature of the battery core 4 contacts the capillary heat pipe 8, the methanol liquid 12 inside the battery core 4 can be changed into water vapor, the water vapor takes away the heat of the battery core 4 along the capillary structure, and finally the water vapor is radiated out through the radiating fins 3 when passing through the cold end, then the methanol liquid 12 begins to liquefy and then circulates back again, thereby continuously radiating the battery core 4 with higher temperature, the heat response speed is high, the radiating efficiency is high, the volume is small, the weight is light, the heat radiating requirement in a narrow space is very suitable, finally, in the heat radiating process, because four radiating areas 2 are divided, the radiating fins 3 made of copper sheets are embedded on the surface of each radiating area 2, when the cold end of the capillary heat pipe 8 passes through the radiating fins 3, the heat conducting silicon film 9 plays a heat transfer function, and the heat is rapidly radiated, when four fin 3 dispel the heat simultaneously, can be rapid with the inside battery core 4 temperature drop of module, efficiency when having promoted the heat dissipation greatly, and heat conduction silica gel piece 9 can also play the shock attenuation, avoid taking place the function of friction between capillary heat pipe 8 and the copper sheet, comparatively practicality during the application, the functionality is stronger.

The utility model discloses a module main part 1, heat dissipation area 2, fin 3, battery core 4, casing 5, opening 6, heat conduction silicone grease 7, capillary heat pipe 8, heat conduction silicone sheet 9, clamp splice 10, output 11, methanol liquid 12, the part is the parts that general standard spare or technical staff in the field know, its structure and principle all can be known through the technical manual or through conventional experimental method to this technical staff, the problem that the utility model solves is that most of the square shell lithium battery module heat dissipation on the existing market adopts the air cooling mode to dispel the heat, and the air cooling needs to be installed in the great space when using, then just can normally run, has certain limitation when using, does not very utilize the heat dissipation processing in the narrow and small space, the radiating efficiency when using is not strong, can't get down the temperature rapidly when the lithium battery temperature is higher, the functional relatively poor scheduling problem, the utility model discloses a combination each other of above-mentioned parts, through combining battery core 4 and capillary heat pipe 8 inseparable together, better solution lithium battery module be not convenient for the radiating problem in narrow and small space, owing to set up circular shape opening 6 in the outside of casing 5, thereby spill inside battery core 4, make the hot junction laminating of capillary heat pipe 8 in the outside of battery core 4, and laminate in the bottom of fin 3 by the cold junction of capillary heat pipe 8, when battery core 4 operation produces high temperature, methanol liquid 12 in capillary heat pipe 8 will become vapor, and vapor then takes away the heat of battery core 4 along capillary structure, at last when vapor just begins the liquefaction through cold junction and methanol liquid 12 after the high temperature is dispersed away through fin 3 to the cold junction, then circulation backward flow once more, thereby incessant heat dissipation is handled to battery core 4 that the temperature is higher, the quick radiating efficiency of thermal response speed is high, itself small light in weight, very be fit for the heat dissipation demand in the narrower and small space, simultaneously there are four radiating areas 2 through the outside division at module main part 1, and inlay the fin 3 that has the copper sheet to make on the surface of each radiating area 2, when the cold junction of capillary heat pipe 8 passes through fin 3, play the function of heat transfer by heat conduction silica gel piece 9, go out the rapid diffusion of heat, when four fins 3 dispel the heat simultaneously, can be rapid with the inside battery core 4 temperature drop of module, efficiency when the heat dissipation has been promoted greatly, and heat conduction silica gel piece 9 can also play the shock attenuation, avoid taking place frictional function between capillary heat pipe 8 and the copper sheet, comparatively practical during the application.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a square shell lithium cell module cooling system which characterized in that: including module main part (1), radiating area (2), capillary heat pipe (8) and heat conduction silica gel piece (9), radiating area (2) have been seted up to the outside of module main part (1), internally mounted capillary heat pipe (8) of module main part (1), the one end of capillary heat pipe (8) is the hot junction, the other end of capillary heat pipe (8) is the cold junction, the one end laminating of capillary heat pipe (8) is on the surface of battery core (4), the other end laminating of capillary heat pipe (8) is in the bottom of fin (3).

2. The heat dissipation system of a square-shell lithium battery module as claimed in claim 1, wherein: the top of module main part (1) is equipped with output (11), output (11) are the symmetric distribution form.

3. The heat dissipation system of a square-shell lithium battery module as claimed in claim 1, wherein: the heat dissipation area (2) is in an evenly distributed form, the heat dissipation plate (3) is connected to the outside of the heat dissipation area (2) in an embedded mode, and the heat dissipation plate (3) is made of copper sheets.

4. The heat dissipation system of a square-shell lithium battery module as claimed in claim 1, wherein: the battery is characterized in that a shell (5) is arranged outside the battery core (4), an opening (6) is formed in the outer portion of the shell (5), and the inside of the opening (6) is connected with a capillary heat pipe (8) through heat conduction silicone grease (7).

5. The heat dissipation system of a square-shell lithium battery module as claimed in claim 1, wherein: the top of the capillary heat pipe (8) is bonded with a heat-conducting silica gel sheet (9), and the heat-conducting silica gel sheet (9) is bonded at the bottom of the radiating fin (3).

6. The heat dissipation system of a square-shell lithium battery module as claimed in claim 1, wherein: capillary heat pipe (8) are the evenly distributed form, install on the surface of casing (5) through clamp splice (10) in the outside of capillary heat pipe (8), the inside packing of capillary heat pipe (8) has methanol liquid (12).