CN216213702U

CN216213702U - Cooling device for new energy automobile power battery

Info

Publication number: CN216213702U
Application number: CN202122669622.1U
Authority: CN
Inventors: 戴涌彬; 黄泽强
Original assignee: Shenzhen Xinneng Power Supply Co ltd
Current assignee: Shenzhen Xinneng Power Supply Co ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-04-05
Anticipated expiration: 2031-11-03

Abstract

The utility model discloses a cooling device of a new energy automobile power battery, which comprises an air-cooled heat dissipation part with a Jiong-shaped structure and a heat conduction part with a U-shaped structure. The air-cooled heat dissipation part of the Jiong-shaped structure is covered and connected with an electrode end at the upper end of the lithium battery main body, an air cavity of the Jiong-shaped structure, an exhaust cavity arranged at the top of the air cavity and communicated with the air cavity, a plurality of spiral pipes arranged in two side cavities of the air cavity and an exhaust fan arranged in the exhaust cavity are arranged in the air cooling heat dissipation part, air inlets are arranged at the outer corners of the two side cavities of the air cavity, and quick connection grooves arranged at the lower ends of the air-cooled heat dissipation parts of the Jiong-shaped structure are connected with the pipe orifices of the spiral pipes downwards; the heat conducting part of U-shaped structure is connected to the lower part of the lithium battery body, liquid storing cavities are formed in two sides of the heat conducting part of the U-shaped structure, volatile heat dissipating medium is filled in the liquid storing cavities, and a plurality of quick connectors are arranged at the upper end of the heat conducting part of the U-shaped structure and are in butt joint with the quick connecting grooves. The cooling device can improve the heat dissipation efficiency.

Description

Cooling device for new energy automobile power battery

Technical Field

The utility model relates to an electric vehicle, in particular to a cooling device for a power battery of a new energy automobile.

Background

With the development of modern technologies, various types of electric automobile radiators are being applied to every corner of the society. The circulating cooling heat dissipation system is a part of an electric driving vehicle cooling system, and two important heat dissipation problems exist in the electric driving vehicle cooling heat dissipation system, one is the heat dissipation problem of the charger, and the other is the heat dissipation problem of the lithium battery main body.

For a long time, the heat dissipation capability of the integral heat dissipation structure is insufficient for the two separate heat sources, and therefore, there is a need for improvement of the conventional heat dissipation structure of the lithium battery main body.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a cooling device for a power battery of a new energy automobile, and the cooling device is designed to protect a lithium battery main body and improve the heat dissipation effect.

In order to solve the technical problem, the utility model is realized by the following scheme: the utility model relates to a cooling device for a new energy automobile power battery, which comprises:

the air-cooled heat dissipation part is of an 'Jiong' type structure, covers an electrode end at the upper end of the lithium battery main body, and is internally provided with an air cavity of a 'Jiong' type structure, an exhaust cavity arranged at the top of the air cavity and communicated with the air cavity, a plurality of spiral pipes arranged in two side cavities of the air cavity and an exhaust fan arranged in the exhaust cavity, wherein the outer corners of the two side cavities of the air cavity are provided with air inlets, and the pipe orifices of the spiral pipes face downwards and are connected with quick-connection grooves arranged at the lower end of the air-cooled heat dissipation part of the 'Jiong' type structure;

the heat conducting part of the U-shaped structure is connected to the lower part of the lithium battery body in a covering mode, liquid storage cavities are formed in two sides of the heat conducting part of the U-shaped structure, volatile heat dissipation media are filled in the liquid storage cavities, a plurality of quick connectors are arranged at the upper end of the heat conducting part of the U-shaped structure, and the quick connectors are in butt joint with the quick connecting grooves, so that the liquid storage cavities and the spiral pipe form a closed cavity.

Furthermore, the volatile heat dissipation medium is one of ethylene glycol and propylene glycol.

Furthermore, the main body of the lithium battery is clamped with the heat conducting part of the U-shaped structure.

Furthermore, two side parts of the lower part of the lithium battery main body are provided with first wavy grains of a concave-convex structure, and two opposite sides of the U-shaped groove of the heat-conducting part of the U-shaped structure are provided with second wavy grains which can be clamped with the first wavy grains.

Furthermore, the heat-conducting part of the U-shaped structure is an aluminum heat-dissipating shell.

Further, the spiral pipe is an aluminum pipe.

Compared with the prior art, the utility model has the beneficial effects that: the cooling device of the utility model has two parts, one part directly absorbs heat through an air-cooled heat dissipation part with an Jiong-shaped structure and dissipates heat through an exhaust fan. The other part absorbs heat through the heat conducting part of the U-shaped structure and then conducts the heat to the heat radiating medium, the liquid heat radiating medium absorbs heat and volatilizes to form a gaseous medium, the gaseous medium enters the spiral tube, and the spiral tube cools down due to the circulation of air outside the spiral tube, so that the gaseous medium cools down to form liquid drops which flow back to the liquid storage cavity, and the purpose of heat radiation is achieved. Compared with the traditional heat dissipation device, the cooling device can improve the heat dissipation efficiency.

Drawings

Fig. 1 is a schematic view of an air-cooled heat sink and a lithium battery main body mounting structure of an "Jiong" type structure according to the present invention.

Fig. 2 is a schematic structural diagram of the cooling device of the present invention.

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, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and thus the protection scope of the present invention is more clearly and clearly defined. It should be apparent that the described embodiments of the present invention are only some embodiments of the present invention, and not all 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1, the specific structure of the present invention is as follows:

referring to fig. 1-2, the cooling device for a new energy automobile power battery of the present invention includes:

the air-cooled heat dissipation part 3 with the 'Jiong' type structure is covered and connected to the electrode end at the upper end of the lithium battery main body 1, and is internally provided with an air cavity with the 'Jiong' type structure, an exhaust cavity which is arranged at the top of the air cavity and is communicated with the air cavity, a plurality of spiral pipes 38 which are arranged in two side cavities of the air cavity and an exhaust fan 310 which is arranged in the exhaust cavity, wherein the outer corners of the two side cavities of the air cavity are provided with air inlets 39, and the pipe orifices of the spiral pipes 38 are downwards connected with quick connecting grooves which are arranged at the lower end of the air-cooled heat dissipation part 3 with the 'Jiong' type structure;

the heat conducting part 2 of U-shaped structure is covered and connected with the lower part of the lithium battery main body 1, two sides of the heat conducting part 2 of U-shaped structure are provided with liquid storage cavities 21, volatile heat dissipation media 22 are filled in the liquid storage cavities 21, the upper end of the heat conducting part 2 of U-shaped structure is provided with a plurality of quick connectors 23, and the quick connectors 23 are in butt joint with the quick connecting grooves, so that the liquid storage cavities 21 and the spiral pipe 38 form a closed cavity.

A preferred technical solution of this embodiment: the volatile heat dissipation medium 22 is one of ethylene glycol and propylene glycol.

A preferred technical solution of this embodiment: the lithium battery main body 1 is clamped with the heat conducting part 2 of the U-shaped structure.

A preferred technical solution of this embodiment: two side parts of the lower part of the lithium battery main body 1 are provided with first wavy grains of a concave-convex structure, and two opposite sides of the U-shaped groove of the heat-conducting part 2 of the U-shaped structure are provided with second wavy grains which can be clamped with the first wavy grains.

After the lithium battery body 1 is clamped into the U-shaped groove of the heat-conducting part 2 with the U-shaped structure, the air-cooled heat-radiating part 3 with the Jiong-shaped structure is covered on the top of the lithium battery body 1.

The heat conducting part 2 of the U-shaped structure is also provided with a conducting wire, and three terminals of the lithium battery main body 1 are in butt joint conduction with a circuit in the heat conducting part 2 of the U-shaped structure.

A preferred technical solution of this embodiment: the heat conducting part 2 of the U-shaped structure is an aluminum heat radiating shell which is made of a good heat radiating material and has a good heat conducting effect.

A preferred technical solution of this embodiment: the spiral tube 38 is an aluminum tube, which is made of a good heat dissipation material and has a good heat conduction effect.

Example 2:

the working principle of the cooling device of the utility model is as follows:

as shown in fig. 2, when the lithium battery main body 1 is operated, a large amount of heat is generated, and a part of the heat is conducted to the air-cooled heat-dissipating part 3 of the "Jiong" type structure and another part of the heat-conducting part 2 of the "u" type structure.

The air-cooled heat dissipation part 3 with the Jiong-shaped structure receives heat, the heat is conducted to the air cavity, the exhaust fan 310 exhausts air upwards, and the air inlet 39 feeds cold air, so that the purpose of air-cooled heat dissipation is achieved.

The heat absorbed by the heat-conducting part 2 of the u-shaped structure is conducted to the volatile heat-dissipating medium 22, the liquid volatile heat-dissipating medium 22 is heated and volatilized into a gaseous medium, the gaseous medium enters the spiral tube 38, and the air outside the spiral tube 38 circulates and the air inlet is located nearby. Therefore, the spiral pipe 38 can be cooled, after the spiral pipe 38 is cooled, the gaseous medium in the spiral pipe 38 is also cooled, and the gaseous medium is cooled to form liquid drops which flow back to the liquid storage cavity along the spiral pipe 38, so that the purpose of heat dissipation is achieved.

In summary, the cooling device of the present invention has two parts, one part directly absorbs heat through the air-cooled heat dissipation part with the "Jiong" type structure, and dissipates heat through the exhaust fan. The other part absorbs heat through the heat conducting part of the U-shaped structure and then conducts the heat to the heat radiating medium, the liquid heat radiating medium absorbs heat and volatilizes to form a gaseous medium, the gaseous medium enters the spiral tube, and the spiral tube cools down due to the circulation of air outside the spiral tube, so that the gaseous medium cools down to form liquid drops which flow back to the liquid storage cavity, and the purpose of heat radiation is achieved.

Compared with the traditional heat dissipation device, the cooling device can improve the heat dissipation efficiency.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a new energy automobile power battery's cooling device which characterized in that includes:

the air-cooled heat dissipation part (3) of an 'Jiong' type structure is covered and connected to an electrode end at the upper end of a lithium battery main body (1), an air cavity of a 'Jiong' type structure, an exhaust cavity arranged at the top of the air cavity and communicated with the air cavity, a plurality of spiral pipes (38) arranged in two side cavities of the air cavity and an exhaust fan (310) arranged in the exhaust cavity are arranged in the air cavity, air inlets (39) are arranged at the outer corners of the two side cavities of the air cavity, and a quick connection groove arranged at the lower end of the air-cooled heat dissipation part (3) of the 'Jiong' type structure is connected with the downward pipe orifice of each spiral pipe (38);

the heat conducting part (2) of the U-shaped structure is connected to the lower portion of the lithium battery body (1) in a covering mode, liquid storage cavities (21) are formed in two sides of the heat conducting part (2) of the U-shaped structure, volatile heat dissipation media (22) are filled in the liquid storage cavities (21), a plurality of quick connectors (23) are arranged at the upper end of the heat conducting part (2) of the U-shaped structure, the quick connectors (23) are in butt joint with the quick connecting grooves, and the liquid storage cavities (21) and the spiral pipe (38) form a closed cavity.

2. The cooling device for the new energy automobile power battery according to claim 1, wherein the volatile heat dissipation medium (22) is one of ethylene glycol and propylene glycol.

3. The cooling device for the new energy automobile power battery according to claim 1, wherein the lithium battery body (1) is clamped with the heat conducting part (2) of the U-shaped structure.

4. The cooling device for the new energy automobile power battery according to claim 3, wherein two side portions of the lower portion of the lithium battery main body (1) are provided with first corrugations of a concave-convex structure, and two opposite sides of the U-shaped groove of the heat conducting portion (2) of the U-shaped structure are provided with second corrugations capable of being clamped with the first corrugations.

5. The cooling device for the new energy automobile power battery according to claim 1, wherein the heat conducting part (2) of the U-shaped structure is an aluminum heat dissipating shell.

6. The cooling device for the power battery of the new energy automobile as claimed in claim 1, wherein the spiral pipe (38) is an aluminum pipe.