CN216435988U

CN216435988U - Lithium battery heat dissipation protector

Info

Publication number: CN216435988U
Application number: CN202122367636.8U
Authority: CN
Inventors: 顾王强; 金苗锋; 杨伟泳
Original assignee: Anji Yueli Handling Equipment Co ltd
Current assignee: Anji Yueli Handling Equipment Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-05-03
Anticipated expiration: 2031-09-27

Abstract

The utility model provides a lithium cell heat dissipation protector, include: the battery box is provided with a bottom and no cover, and a cavity is arranged in the battery box; a sealed storage cavity is arranged on one side, close to the cavity, in the battery box; the cooling liquid is arranged in the object placing cavity; the utility model can be realized by only placing the lithium battery in the cavity of the battery box and realizing physical heat transfer through the arranged cooling liquid, and the operation mode is simple and convenient, and simultaneously, most of external hot air is isolated from influencing the lithium battery; further protecting the lithium battery body.

Description

Lithium battery heat dissipation protector

Technical Field

The utility model relates to a lithium cell cooling technical field, especially a lithium cell heat dissipation protector.

Background

The heat dissipation problem of lithium cell all has been the key technology of trade always, and the lithium cell has higher energy, higher charge-discharge efficiency for traditional battery, and consequently the work in-process is serious, especially is applied to the lithium cell in power battery field, because road conditions are complicated, the environment is harsh (summer at high temperature especially), the misoperation, and the lithium cell heat production is faster, influences the capacity of battery, life-span greatly, leads to its security performance to reduce.

The safety performance problem of the lithium battery is caused by heat generation, when the heat generation rate is greater than the heat dissipation rate, the battery pack is heated, once the temperature of the battery pack exceeds the temperature which can be borne by the battery pack, serious safety accidents of electric equipment occur, so that the heat dissipation problem of the lithium battery is very important, and the cooling plate for cooling the lithium battery is very important for the lithium battery.

Current lithium cell cooling radiator adopts integral type cooling heating panel more, and the cooling heating panel is fixed on shell or lithium cell, and the dismantlement and the installation of inconvenient cooling heating panel also can influence the change of lithium cell, and the cooling effect is not good.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium cell heat dissipation protector has solved the current lithium cell heating panel cooler that proposes in the background art and can not dismantle the installation and the poor technical problem of cooling effect.

In order to achieve the above object, the utility model provides a following technical scheme: a lithium battery heat dissipation protector, comprising: the battery box is provided with a bottom and no cover, and a cavity is arranged in the battery box; a sealed storage cavity is arranged at one side of the battery box close to the cavity; the cooling liquid is arranged in the object placing cavity.

By adopting the technical scheme, the utility model discloses only need place the lithium cell in the cavity of battery box can to realize the physics heat transfer through the coolant liquid that is equipped with, this mode of operation is simple convenient simultaneously, has isolated the influence of most external hot-air to the lithium cell; the protection to the lithium cell has further been strengthened, and when actual operation, the accessible adds thermal-insulated cotton in order to realize effectively fixedly to the lithium cell in the battery box.

As a preferred scheme of the utility model, the battery box includes: a stainless steel protective layer, a heat insulation layer, an interlayer and a heat conduction layer are arranged from outside to inside; the stainless steel protective layer is fixedly connected with the heat insulation layer, the interlayer and the heat conduction layer in sequence to form a sealed cavity, so that good heat insulation and heat preservation effects are achieved; and a gap is left between the interlayer and the heat conduction layer to form an object placing cavity.

Furthermore, the cooling liquid is a heat absorption phase change material so as to further improve the physical heat exchange function.

Furthermore, a clamping block is arranged on one side of the box cover; a bayonet matched with the clamping block is arranged on the inner wall of the heat conducting layer; the other side of the box cover is provided with a U-shaped clamping plate, and an opening of the U-shaped clamping plate is vertically and upwards formed; the U-shaped clamping plate is far away from one end of the battery box cover and is provided with a handheld plate, so that the battery box cover is clamped into the battery box or separated from the battery box.

Furthermore, the top of the box cover is provided with a through hole; and a fan is arranged in the through hole to improve the heat dissipation performance of the cavity in the battery box.

Furthermore, a filter screen arranged at an interval with the fan is further arranged on the through hole to reduce dust falling into the cavity.

Furthermore, the battery box is provided with a wire passing hole communicated with the cavity, so that the connecting wire of the lithium battery can directly penetrate out of the battery box.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model can be realized by only placing the lithium battery in the cavity of the battery box and realizing physical heat transfer through the arranged cooling liquid, and the operation mode is simple and convenient, and simultaneously, most of external hot air is isolated from influencing the lithium battery; further protecting the lithium battery body.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic view of the main structure of the embodiment of the present invention;

fig. 2 is an internal sectional view of a battery box according to an embodiment of the present invention;

fig. 3 is a schematic structural view of the case cover in the embodiment of the present invention.

In the figure: 1. a battery box; 11. a cavity; 12. a wire passing hole; 1-1, a stainless steel protective layer; 1-2, a heat insulation layer; 1-3, interlayer; 1-4, a heat conducting layer; 1-41 and a bayonet; 1-5, a storage cavity; 2. a box cover; 21. a clamping block; 22. a U-shaped clamping plate; 23. a hand-held board; 24. a through hole; 3. a fan; 4. filtering with a screen; 5. and (6) cooling the liquid.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1, a lithium battery heat dissipation protector includes: the battery box comprises a battery box 1 which is open and is internally provided with a cavity 11, a box cover 2 clamped on the battery box 1 and cooling liquid 5; one side of the battery box 1 close to the cavity 11 is provided with a sealed object placing cavity 1-5, namely the inner side wall of the battery box 1 is provided with the object placing cavity 1-5; coolant liquid 5 arranges in putting thing chamber 1-5, orders about when the lithium cell generates heat and contacts with 1 inner wall of battery box, through coolant liquid 5 in order to realize the heat transfer operation, and when actual operation, can be appropriate pack thermal-insulated cotton in cavity 1 in order to carry out fixed position to the lithium cell.

As shown in fig. 2, the battery case 1 includes: a stainless steel protective layer 1-1, a heat insulation layer 1-2, an interlayer 1-3 and a heat conduction layer 1-4 are arranged from outside to inside; the stainless steel protective layer 1-1 is fixedly connected with the heat insulation layer 1-2, the interlayer 1-3 and the heat conduction layer 1-4 in sequence to form a sealed chamber, and the arrangement can further improve the heat insulation performance and the constant temperature performance of the battery box 1; the heat insulation layer 1-2, the interlayer 1-3 and the heat conduction layer 1-4 can be made of stainless steel, and the heat insulation layer 1-2 and the interlayer 1-3 can also be made of titanium alloy and other metals with poor heat conduction performance so as to play a role in heat preservation and heat insulation and avoid the temperature rise of the lithium battery caused by room temperature; a gap is reserved between the interlayer 1-3 and the heat conduction layer 1-4 to form an object placing cavity 1-5, and heat exchange operation is achieved through the heat conduction layer 1-4.

As shown in fig. 2, the coolant 5 is a heat-absorbing phase change material, specifically, a hydrofluorocarbon, hydrofluoroether, perfluorocarbon, or the like, which is commercially available, and performs a good heat exchange operation.

As shown in fig. 1-3, two latch blocks 21 are arranged at the front end of the box cover 2; bayonets 1-41 matched with the clamping blocks 21 are formed in the inner walls of the heat conducting layers 1-4 so as to fix the box cover 2, and the bayonets 1-41 and the object placing cavities 1-5 are arranged independently; the rear end of the box cover 2 is provided with a U-shaped clamping plate 22, and an opening of the U-shaped clamping plate is vertically and upwards formed; a handheld plate 23 is installed at one end, away from the box cover 2, of the U-shaped clamping plate 22, and after the clamping block 21 of the box cover 2 is clamped to the bayonets 1-41, the box cover 2 is pressed downwards, so that the U-shaped clamping plate 22 is partially accommodated into the battery box 1, and at the moment, the U-shaped clamping plate 22 is compressed; when the box cover 2 needs to be detached, the hand-held plate 23 is firstly pulled upwards to enable the U-shaped clamping plate 22 to retreat from the cavity 11, the box cover 2 slides towards the rear end, and the clamping block 21 retreats from the bayonets 1-41, so that the fixing and detaching operation of the box cover 2 is realized.

As shown in fig. 1, a through hole 24 is formed at the top of the case cover 2; the fan 3 is installed in the through hole 24, wherein the fan 3 is powered by the replaceable 5V battery, and the heat dissipation effect is enhanced.

As shown in fig. 1, a filter screen 4 is disposed on the through hole 24 at a distance from the fan 3 to ensure relative neatness of the inside of the battery box 1.

As shown in fig. 1, the battery box 1 is provided with a wire passing hole 12 communicated with the cavity 11, so that a power line of the lithium battery can smoothly pass through the battery box 1.

Finally, it is noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. A lithium battery heat dissipation protector, comprising: the battery box comprises a battery box (1) with a bottom and no cover and a cavity (11) arranged in the battery box, a box cover (2) clamped on the battery box (1) and cooling liquid (5); a sealed storage cavity (1-5) is arranged at one side of the battery box (1) close to the cavity (11); the cooling liquid (5) is arranged in the object placing cavities (1-5).

2. The lithium battery heat dissipation protector as recited in claim 1, wherein the battery case (1) comprises: a stainless steel protective layer (1-1), a heat insulation layer (1-2), an interlayer (1-3) and a heat conduction layer (1-4) are arranged from outside to inside; the stainless steel protective layer (1-1) is fixedly connected with the heat insulation layer (1-2), the interlayer (1-3) and the heat conduction layer (1-4) in sequence to form a sealed chamber; and a gap is reserved between the interlayer (1-3) and the heat conduction layer (1-4) to form the object placing cavity (1-5).

3. The lithium battery thermal protector according to claim 1, characterized in that the cooling liquid (5) is a heat absorbing phase change material.

4. The lithium battery heat dissipation protector as recited in claim 2, wherein a clamping block (21) is arranged on one side of the box cover (2); bayonets (1-41) matched with the clamping blocks (21) are formed in the inner walls of the heat conducting layers (1-4); a U-shaped clamping plate (22) is arranged on the other side of the box cover (2), and an opening of the U-shaped clamping plate (22) is vertically and upwards formed; and a handheld plate (23) is arranged at one end, far away from the box cover (2), of the U-shaped clamping plate (22).

5. The lithium battery heat dissipation protector as defined in claim 4, wherein the top of the box cover (2) is provided with a through hole (24); and a fan (3) is arranged in the through hole (24).

6. The lithium battery heat dissipation protector as recited in claim 5, further comprising a filter (4) spaced apart from the fan (3) on the through hole (24).

7. The lithium battery heat dissipation protector as recited in claim 1, wherein the battery box (1) is provided with a wire through hole (12) communicating with the cavity (11).