CN217691321U

CN217691321U - Novel battery package thermal management structure

Info

Publication number: CN217691321U
Application number: CN202220726120.XU
Authority: CN
Inventors: 陈凯伦; 宋志新; 邓奇思
Original assignee: Tianneng New Energy Huzhou Co ltd
Current assignee: Tianneng New Energy Huzhou Co ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-10-28
Anticipated expiration: 2032-03-30

Abstract

The utility model relates to a novel battery pack heat management structure, which comprises a heat pipe, wherein the heat pipe is attached to the outer surface of a module in a battery pack and comprises a pipe shell, a liquid absorption core and an end cover, the liquid absorption core is closely attached to the inner wall of the pipe shell, one end of the pipe shell is an evaporation section, and the other end of the pipe shell is a condensation section; an adiabatic section is arranged between the evaporation section and the condensation section; the liquid absorption core is prepared from a porous capillary material; the heat pipe is L-shaped and is distributed on one side of the module; the heat conduction structure is positioned above the condensation section; the heat conduction structure is a heat conduction glue or metal fin structure. The utility model discloses a condensation segment and evaporation zone pass through heat conduction structure with the casing and link to each other, and heat conduction structure is heat conduction glue or metal fin structure, and along with medium condensation segment and evaporation zone evaporation condensation in the heat pipe, the heat passes through heat pipe transmission to heat conduction structure department from the module, and the heat transmission of putting the condensation segment through heat conduction structure is to the casing, realizes thermal giving off.

Description

Novel battery package thermal management structure

Technical Field

The utility model is suitable for a soft packet of lithium ion cell manufacture equipment technical field especially relates to a novel battery package thermal management structure.

Background

The battery pack thermal management aims at cooling, heating and maintaining temperature uniformity.

The cooling method of the battery pack is roughly divided into three methods of air cooling, liquid cooling and direct cooling. The air cooling comprises natural cooling and forced convection cooling, and is suitable for scenes with low IP protection level of the battery pack; direct cooling is not commonly used due to the mounting mode and the cooling effect; the common cooling mode is liquid cooling, and the primary cooling of liquid cooling board and the secondary cooling combination mode of air conditioning unit are the most common, but this kind of method needs the space great, and the subassembly is more, and the design is complicated, and the cycle is longer, only is applicable to the battery package of bulky and uses. The radiating mode to the less battery package of volume concentrates on strengthening the interior fin structure of casing in the market at present for the battery heat flows to the fin from electric core through the heat-conduction route with electric core contact, and the rethread casing gives off to the external world, receives contact and heat-conduction efficiency, and this kind of cooling effect is not very ideal, and from the heat dissipation mechanism, this belongs to natural cooling, only strengthens the heat dissipation through the increase with the hot contact area of heat source and increase heat radiating area.

Conservatively, no active heat dissipation method aiming at low cost and convenient installation of the small battery pack exists in the market.

In order to solve the above problems, the present invention is provided.

Disclosure of Invention

In view of this, the utility model aims at providing a novel battery package thermal management structure.

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

a novel battery pack heat management structure comprises a heat pipe, wherein the heat pipe is attached to the outer surface of a module in a battery pack and comprises a pipe shell, a liquid absorption core and an end cover, the liquid absorption core is attached to the inner wall of the pipe shell, one end of the pipe shell is an evaporation section, and the other end of the pipe shell is a condensation section; an adiabatic section is arranged between the evaporation section and the condensation section.

Preferably, the wick is made of a porous capillary material.

Preferably, the heat pipe is L-shaped and is arranged on one side of the module.

Furthermore, the condensing unit also comprises a heat conduction structure, and the heat conduction structure is positioned above the condensing section.

Further, the heat conducting structure is a heat conducting glue or metal fin structure.

Furthermore, the battery pack shell is further included, and the module is arranged in the battery pack shell.

Preferably, the number of the heat pipes is multiple, and the multiple heat pipes are arranged on one side of the module in parallel.

Preferably, the heat pipe is U-shaped and is distributed on three sides of the module.

The beneficial technical effects are as follows:

the utility model discloses a condensation segment and evaporation zone pass through heat conduction structure with the casing and link to each other, and heat conduction structure is heat conduction glue or metal fin structure, and along with medium condensation segment and evaporation zone evaporation condensation in the heat pipe, the heat passes through heat pipe transmission to heat conduction structure department from the module, and the heat transmission of putting the condensation segment through heat conduction structure is to the casing, realizes thermal giving off.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is the thermal management structure diagram of the battery pack of the present invention.

Fig. 2 is a schematic view of the heat pipe of the present invention in an L-shaped structure.

Fig. 3 is a schematic view of the U-shaped structure of the heat pipe of the present invention.

In the figure:

1. a battery pack housing; 2. an evaporation section; 3. a condensing section; 4. a heat conducting structure; 5. and (5) a module.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.

Referring to fig. 1, a novel battery package thermal management structure includes the heat pipe, and the heat pipe pastes the 8 surfaces of module in the battery package, utilizes the physical characteristics of heat pipe to realize thermal transmission to reach the temperature control of battery package, the heat pipe is the L type, comprises tube, imbibition core and end cover, and the tube inner wall is hugged closely to the imbibition core, and the end cover is used for sealing the tube, and the one end of tube is evaporation zone 2, and the other end is condensation zone 3, and heat conduction structure 4 is located condensation zone 3's top. An adiabatic section is arranged between the evaporation section 2 and the condensation section 3. The heat conducting structure 4 is a heat conducting glue or metal fin structure. The evaporation section 2 absorbs heat through evaporation and absorbs heat generated by the module 5.

The liquid absorption core is prepared from a porous capillary material, a proper amount of liquid is filled after negative pressure is pumped in the pipe shell, and the porous capillary material of the liquid absorption core tightly attached to the inner wall of the pipe shell is filled with the liquid and then sealed through the end cover. When the evaporation section 2 of the heat pipe is heated, the liquid in the liquid absorption core is evaporated and vaporized, the vapor flows to the condensation section 3 through the heat insulation section under the tiny pressure difference, the heat released in the condensation section 3 is condensed into liquid, and the liquid flows back to the evaporation section 2 under the action of capillary force of the liquid absorption core.

The battery pack shell 1 is further included, and the module 5 is arranged in the battery pack shell 1.

Referring to fig. 1, the single-side L-shaped heat pipe is arranged on one side of the module 5, the heat pipe is L-shaped, the heat pipe is tightly attached to the surface of the module, the lower end of the heat pipe is an evaporation section, and the heat pipe absorbs heat through evaporation and absorbs heat generated by the module; the upper end is the condensation segment, passes through heat conduction structure with the casing and links to each other, and this heat conduction structure generally is heat conduction glue or metal fin structure, with the heat transfer to the casing that the condensation segment was put, realizes thermal final transmission.

Referring to fig. 2, the heat pipes are L-shaped and disposed on both sides of the module 5.

Referring to fig. 3, the heat pipes are U-shaped and arranged on three sides of the module 5, the heat pipes on two sides are tightly attached to the surface of the module 5, and along with the evaporation and condensation of media in the heat pipes, heat is transferred from the module to the heat conducting structure through the heat pipes, and then is transferred to the shell through the heat conducting structure, so that the heat is dissipated.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a novel battery package thermal management structure which characterized in that: the heat pipe is attached to the outer surface of a module (5) in a battery pack and comprises a pipe shell, a liquid absorption core and an end cover, wherein the liquid absorption core is attached to the inner wall of the pipe shell, one end of the pipe shell is an evaporation section (2), and the other end of the pipe shell is a condensation section (3); an adiabatic section is arranged between the evaporation section (2) and the condensation section (3).

2. The novel battery pack thermal management structure of claim 1, wherein: the wick is made of a porous capillary material.

3. The novel battery pack thermal management structure of claim 1, wherein: the heat pipe is L-shaped and is arranged on one side of the module (5).

4. The novel battery pack thermal management structure of claim 3, wherein: the condenser also comprises a heat conduction structure (4), wherein the heat conduction structure (4) is positioned above the condensation section (3).

5. The novel battery pack thermal management structure of claim 4, wherein: the heat conduction structure (4) is a heat conduction glue or metal fin structure.

6. The novel battery pack thermal management structure of claim 3, wherein: the battery pack is characterized by further comprising a battery pack shell (1), and the module (5) is arranged in the battery pack shell (1).

7. The novel battery pack thermal management structure of claim 6, wherein: the number of the heat pipes is multiple, and the heat pipes are arranged on one side of the module (5) in parallel.

8. The novel battery pack thermal management structure of claim 6, wherein: the heat pipe is U-shaped and is distributed on three sides of the module (5).