CN218957917U

CN218957917U - Lithium battery pack immersion type liquid cooling module for energy storage container

Info

Publication number: CN218957917U
Application number: CN202223152829.2U
Authority: CN
Inventors: 徐亚峰
Original assignee: Shanghai Jingsheng Energy Equipment Co ltd
Current assignee: Shengbolan New Energy Equipment Suzhou Co ltd
Priority date: 2022-11-27
Filing date: 2022-11-27
Publication date: 2023-05-02
Anticipated expiration: 2032-11-27

Abstract

Lithium cell package immersion liquid cooling module for energy storage container, its characterized in that: the lithium battery cooling device comprises a shell (1), a plurality of lithium batteries (2) are fixedly arranged in an inner cavity of the shell (1), cooling liquid (3) is filled in the inner cavity of the shell (1), a heat exchange plate (4) is arranged at the bottom of the inner cavity of the shell (1), and a cooling liquid inlet (5) and a cooling liquid outlet (6) are respectively arranged on two sides of a side shell wall of the shell (1). According to the lithium battery pack, the heat dissipation area is 100% wrapped, the immersed cooling liquid is independent of the cooling pipe, the possibility that the liquid is polluted by a large area is reduced, and the cooling liquid medium can be adapted to different mediums according to different scenes.

Description

Lithium battery pack immersion type liquid cooling module for energy storage container

Technical Field

The utility model belongs to the technical field of energy storage containers, and particularly relates to a lithium battery pack immersion type liquid cooling module for an energy storage container.

Background

Along with popularization and application of new energy sources such as solar energy, wind energy and the like, the energy storage technology is also developed, and the lithium battery gradually becomes a main product of energy storage because of the advantages of high energy, long service life, high rated voltage, high power bearing capacity, low self-discharge rate, light weight, environmental protection, no water consumption basically in production and the like.

The traditional container battery energy storage system mostly adopts an air cooling mode to dissipate heat, but in recent years, the container battery energy storage system starts to adopt a liquid cooling mode to carry out heat management of the battery system. Compared with the traditional air cooling heat management mode, the liquid cooling mode is more efficient, the overall temperature difference control is more uniform, the temperature rise is lower, and the charge and discharge application with higher multiplying power is supported. However, the efficiency of the cooling mode of the traditional container battery energy storage system is generally low, the battery contacts a cooling disc when the bottom of the cooling mode is used for cooling, and a cooling coil is used in the disc; or semi-enclosure cooling is adopted: the cooling water bypasses the battery pack to achieve the heat dissipation purpose, and the heat dissipation area is only 50% at most, or even lower; even if coil pipe is adopted to cool the cooling liquid, the battery is soaked in the cooling liquid, so that the cooling effect is increased by increasing the heat dissipation area, the service life of the battery is prolonged, and the optimal working state of the battery is ensured, but the battery can only reach more than 95% of heat dissipation area at most; and cannot completely cover the entire battery pack.

Disclosure of Invention

The utility model aims at solving the defects that the heat dissipation and cooling of the battery pack for the existing container energy storage system adopt contact type to only contact one surface or multiple surfaces, and the purpose of 100% contact heat dissipation cannot be achieved; the lithium battery pack immersion type liquid cooling module for the energy storage container has the advantages that the heat dissipation area of the lithium battery pack is wrapped by 100%, immersion type cooling liquid is independent to the cooling pipes respectively, the possibility that liquid is polluted in a large area is reduced, and cooling liquid media can be adapted to different media according to different scenes.

Technical proposal

In order to achieve the technical purpose, the lithium battery pack immersion type liquid cooling module for the energy storage container is characterized in that: the lithium battery heat exchanger comprises a shell, a plurality of lithium batteries are fixedly arranged in an inner cavity of the shell, cooling liquid is filled in an inner cavity of the shell, a heat exchange plate is arranged at the bottom of the inner cavity of the shell, and a cooling liquid inlet and a cooling liquid outlet are respectively arranged on two sides of a side shell wall of the shell.

Further, the upper ends of the lithium batteries are fixedly arranged on the upper cover plate of the shell, and the lower ends of the lithium batteries are suspended.

Further, the lithium batteries are arranged in the inner cavity of the shell side by side in parallel.

Further, the heat exchange plate is fixedly arranged at the bottom of the inner cavity of the shell.

The beneficial effects are that:

according to the lithium battery pack immersion type liquid cooling module for the energy storage container, the immersion type cooling mode is adopted to fix the lithium battery pack, and the inner cavity of the closed shell is filled with the cooling liquid, so that the heat dissipation area of the lithium battery pack is 100% wrapped, the immersion type cooling liquid is independent of the cooling pipes, the possibility that the liquid is polluted in a large area is reduced, and different media can be adapted according to different use scenes of the cooling liquid media.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a product diagram of an immersion liquid cooling module of a lithium battery pack in an embodiment of the utility model;

FIG. 2 is a front view of an immersion liquid cooling module of a lithium battery pack in an embodiment of the utility model;

FIG. 3 is a left side view of an immersion liquid cooling module of a lithium battery pack in an embodiment of the utility model;

FIG. 4 is a top view of an immersion liquid cooling module for a lithium battery pack according to an embodiment of the present utility model;

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used in the description of the present application for purposes of illustration only and do not represent the only embodiment.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be a direct contact of the first feature with the second feature, or an indirect contact of the first feature with the second feature via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.

Unless defined otherwise, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. The term "and/or" as used in the specification of this application includes any and all combinations of one or more of the associated listed items.

Examples

In order to solve the problem that the existing battery pack for the container energy storage system can only contact one surface or multiple surfaces in a contact manner and cannot achieve the purpose of 100% contact heat dissipation, the embodiment provides a lithium battery pack immersion type liquid cooling module for an energy storage container, which comprises a shell 1, a plurality of lithium batteries 2 are fixedly arranged in an inner cavity of the shell 1, cooling liquid 3 is filled in a closed inner cavity of the shell 1, a heat exchange plate 4 is arranged at the bottom of the inner cavity of the shell 1, and a cooling liquid inlet 5 and a cooling liquid outlet 6 are respectively arranged on two sides of a side wall of the shell 1. Firstly, a plurality of lithium batteries 2 are fixedly arranged on a beam in the inner cavity of a shell 1, then the shell 1 is closed by a cover plate, wherein the inner cavity of the shell 1 is provided with a heat exchange plate 4, and cooling liquid is injected into the inner cavity of the shell through a cooling liquid inlet 5 to wrap the plurality of lithium batteries 2. The purpose of 100% contact heat dissipation is achieved. After the lithium battery pack is fixed in an immersion cooling mode, cooling liquid is filled in the inner cavity of the closed shell, so that the heat dissipation area of the lithium battery pack is 100% wrapped, the immersion cooling liquid is independent to the cooling pipe, the possibility that the liquid is polluted in a large area is reduced, and the cooling liquid medium can be adapted to different media according to different scenes.

In one embodiment of the present utility model, referring to fig. 2, the upper ends of the lithium batteries 2 are fixedly mounted on the upper cover plate 101 of the housing 1, and the lower ends of the lithium batteries 2 are suspended. The breakage and shorting of a plurality of lithium batteries 2 can be avoided.

In one embodiment of the present utility model, referring to fig. 2 and 4, the plurality of lithium batteries 2 are arranged in parallel side by side in the inner cavity of the housing 1. The mode that the lithium batteries 2 are arranged in the inner cavity of the shell 1 side by side in parallel is adopted, so that the installation time can be reduced, the space is saved, and the number of the batteries is increased.

In one embodiment of the utility model, the heat exchange plate 4 is fixedly arranged at the bottom of the inner cavity of the shell 1. The heat exchange efficiency is further facilitated by adopting the structure.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims

1. Lithium cell package immersion liquid cooling module for energy storage container, its characterized in that: the lithium battery cooling device comprises a shell (1), a plurality of lithium batteries (2) are fixedly arranged in an inner cavity of the shell (1), cooling liquid (3) is filled in the inner cavity of the shell (1), a heat exchange plate (4) is arranged at the bottom of the inner cavity of the shell (1), and a cooling liquid inlet (5) and a cooling liquid outlet (6) are respectively arranged on two sides of a side shell wall of the shell (1).

2. The lithium battery pack immersion type liquid cooling module for an energy storage container as claimed in claim 1, wherein: the upper ends of the lithium batteries (2) are fixedly arranged on the upper cover plate (101) of the shell (1), and the lower ends of the lithium batteries (2) are suspended.

3. The lithium battery pack immersion type liquid cooling module for an energy storage container as claimed in claim 1, wherein: the lithium batteries (2) are arranged in parallel in the inner cavity of the shell (1).

4. The lithium battery pack immersion type liquid cooling module for an energy storage container as claimed in claim 1, wherein: the heat exchange plate (4) is fixedly arranged at the bottom of the inner cavity of the shell (1).