CN212366112U

CN212366112U - Battery pack heat dissipation device

Info

Publication number: CN212366112U
Application number: CN202021096703.6U
Authority: CN
Inventors: 周瑾; 张海军; 王若禹; 张悦; 李鑫; 胡家鹏
Original assignee: Hubei University of Arts and Science
Current assignee: Hubei University of Arts and Science
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-01-15
Anticipated expiration: 2030-06-15

Abstract

The utility model belongs to the technical field of the battery heat dissipation, especially, relate to a group battery heat abstractor. The solar battery comprises a heat dissipation shell and a battery hole site arranged in the heat dissipation shell, wherein a heat dissipation layer is arranged on the side wall of the battery hole site, the side wall of the battery hole site is connected with the heat dissipation layer through an adhesive, a gap is reserved between the side wall of the battery hole site and the heat dissipation layer, and an insulating heat conducting fin is arranged on the bottom surface of the battery hole site. The battery pack heat dissipation device is simple in structure and high in heat dissipation efficiency.

Description

Battery pack heat dissipation device

Technical Field

The utility model belongs to the technical field of the battery heat dissipation, especially, relate to a group battery heat abstractor.

Background

In recent years, the application range of lithium ion batteries is more and more extensive, and lithium ion batteries are widely applied to energy storage power systems such as hydraulic power, firepower, wind power and solar power stations, and a plurality of fields such as electric tools, electric bicycles, electric motorcycles, electric automobiles, military equipment and aerospace. At present, lithium batteries are gradually expanded to the fields of electric bicycles, electric automobiles and the like.

With the expansion of lithium batteries to the fields of electric bicycles, electric automobiles and the like, the problem of heat dissipation becomes a key problem of lithium battery application. The solution of heat dissipation problem not only can improve the security of lithium cell, also can promote by a wide margin the life-span of group battery simultaneously.

At present, the heat dissipation mode of the battery pack mainly has two types: firstly, the air-cooled heat dissipation takes away the heat generated by the battery through the air generated by the movement by the exhaust fan, the cost of the method is lower, but the layout and the installation of the heat dissipation fins and the heat dissipation grooves need to be considered during the system design, and the method is more complex. Secondly, liquid cooling heat dissipation, current liquid cooling heat abstractor just dispels the heat for the group battery outside, does not dispel the heat to each panel in the group battery, and the radiating efficiency is low, and in addition, liquid pipeline's sealed poor can lead to liquid to leak, causes great damage to battery system.

Disclosure of Invention

To the technical problem that exists now, the utility model provides a group battery heat abstractor, simple structure, the radiating efficiency is high.

In order to achieve the above object, the utility model discloses a main technical scheme include:

the utility model provides a battery pack heat dissipation device which is used for battery heat dissipation and comprises a heat dissipation shell and battery hole sites arranged in the heat dissipation shell,

the side wall of the battery hole site is provided with a heat dissipation layer, the side wall of the battery hole site is connected with the heat dissipation layer through an adhesive, a gap is arranged between the side wall of the battery hole site and the heat dissipation layer,

and the bottom surface of the battery hole site is provided with an insulating heat conducting fin.

Preferably, the heat dissipation layer is filled with a phase change material.

Preferably, the thickness of the heat dissipation layer is 5-7 mm, and the gap is 0.5-1 mm.

Preferably, the heat dissipation shell is provided with a plurality of heat dissipation through holes penetrating through the heat dissipation shell.

Preferably, the heat dissipation cover is buckled with the heat dissipation shell.

Preferably, the heat dissipation shell and the heat dissipation cover are both made of aluminum alloy metal materials.

Preferably, the heat dissipation shell has a cylindrical structure.

Preferably, the phase change material is paraffin, higher fatty acid, polyolefin or alcohol.

Preferably, the height of the battery hole is less than or equal to the length of the battery.

Preferably, the heat dissipation device further comprises a support frame arranged at the bottom of the heat dissipation shell.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model provides a group battery heat abstractor, simple structure easily makes.

(2) The utility model provides a group battery heat abstractor fills with phase change material in the radiating layer, can select the phase change material of different grade type according to the requirement of different batteries.

(3) The utility model provides a group battery heat abstractor, the heat of battery not only can be through the phase change material release in the heat dissipation layer, can also be through insulating conducting strip with heat transfer for the heat dissipation shell to through the release of heat dissipation through-hole, go out the heat dissipation shell and release with the heat transfer of the inside single battery of group battery rapidly, prevent that the excessive accumulation of heat in the group battery from causing the potential safety hazard of use or shortening group battery life.

Drawings

Fig. 1 is a view of a battery heat sink according to the present invention;

fig. 2 is a view of another perspective of the battery heat dissipation device of the present invention.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.

As shown in fig. 1 and 2, the utility model provides a battery heat dissipation device, including heat dissipation shell 1, heat dissipation lid 6 with set up in the battery hole site 2 of heat dissipation shell 1, battery hole site 2 is used for placing the battery, the height of battery hole site 2 slightly is less than the length of battery. The battery hole sites 2 are uniformly arranged in the heat dissipation shell 1, and the number of the battery hole sites is not limited. The battery hole site 2 is a cylinder with an opening at the top and comprises a side wall and a bottom surface, the side wall is provided with a heat dissipation layer 3, the thickness of the heat dissipation layer 3 is 5-7 mm, and the side wall is connected with the heat dissipation layer 3 through an adhesive; the bottom surface is provided with an insulating heat-conducting fin 4.

The utility model discloses in, heat dissipation layer 3 is interior to be filled with phase change material, and phase change material can be for one of paraffin class, higher fatty acid, polyolefin, alcohols etc. according to the different phase change material of different battery needs selection. Further, one or more of expanded graphite, foamed metal, carbon fiber, metal particles may be incorporated into the phase change material to increase the thermal conductivity of the material.

Because the phase change of the phase change material brings volume change, the expansion of a certain volume can cause the heat dissipation layer 3 to extrude the heat dissipation shell 1 and the battery shell, which easily causes the damage of the battery and influences the performance of the battery. A gap is reserved between the heat dissipation layer 3 and the side wall, and the gap is preferably 0.5-1 mm.

The heat dissipation capability is further improved, and a plurality of heat dissipation through holes 5 penetrating through the heat dissipation shell 1 are formed in the heat dissipation shell 1.

The utility model discloses in, for improving material utilization, will dispel the heat shell 1 and set up to the cylinder structure.

The utility model discloses in, heat dissipation shell 1 and heat dissipation lid 6 can also set up to detached two parts through the connecting piece lock joint, the utility model discloses do not do the restriction.

Preferably, the heat dissipation case 1 and the heat dissipation cover 6 are both made of an aluminum alloy metal material.

The utility model discloses in, can also set up support frame 7 in the bottom of heat dissipation shell 1.

The utility model discloses in, the heat of battery not only can be through the phase change material release in the heat dissipation layer 3, can also give heat dissipation shell 1 through insulating conducting strip with heat transfer to release through heat dissipation through-hole 6, make that the inside temperature of group battery is even, the radiating rate is fast, efficient. And simultaneously, the utility model provides a battery heat abstractor simple structure easily makes.

The technical principles of the present invention have been described above with reference to specific embodiments, which are intended to explain the principles of the present invention and should not be interpreted as limiting the scope of the present invention in any way. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. The utility model provides a group battery heat abstractor for the battery heat dissipation which characterized in that: the solar battery comprises a heat dissipation shell (1) and a battery hole site (2) arranged in the heat dissipation shell (1), wherein a heat dissipation layer (3) is arranged on the side wall of the battery hole site (2); the side wall of the battery hole site (2) is connected with the heat dissipation layer (3) through an adhesive, and a gap is reserved between the side wall of the battery hole site (2) and the heat dissipation layer (3); and the bottom surface of the battery hole site (2) is provided with an insulating heat conducting fin (4).

2. The battery pack heat sink of claim 1, wherein: and the heat dissipation layer (3) is filled with phase change materials.

3. The battery pack heat sink of claim 1, wherein: the thickness of the heat dissipation layer (3) is 5-7 mm, and the gap is 0.5-1 mm.

4. The battery pack heat sink of claim 1, wherein: the heat dissipation shell (1) is provided with a plurality of heat dissipation through holes (5) penetrating through the heat dissipation shell (1).

5. The battery pack heat sink of claim 1, wherein: the heat dissipation cover is characterized by further comprising a heat dissipation cover (6), wherein the heat dissipation cover (6) is buckled with the heat dissipation shell (1).

6. The battery pack heat sink of claim 5, wherein: the heat dissipation shell (1) and the heat dissipation cover (6) are made of aluminum alloy metal materials.

7. The battery pack heat sink of claim 1, wherein: the heat dissipation shell (1) is of a cylindrical structure.

8. The battery pack heat sink according to claim 2, wherein: the phase-change material is paraffin, higher fatty acid, polyolefin or alcohol.

9. The battery pack heat sink of claim 1, wherein: the height of the battery hole site (2) is less than or equal to the length of the battery.

10. The battery pack heat sink of claim 1, wherein: still include support frame (7), support frame (7) set up the bottom at heat dissipation shell (1).