CN221352894U - Liquid cooling integrated box body for energy storage - Google Patents

Liquid cooling integrated box body for energy storage Download PDF

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Publication number
CN221352894U
CN221352894U CN202322769911.8U CN202322769911U CN221352894U CN 221352894 U CN221352894 U CN 221352894U CN 202322769911 U CN202322769911 U CN 202322769911U CN 221352894 U CN221352894 U CN 221352894U
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China
Prior art keywords
cooling
box body
aluminum
tank
cooling channel
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CN202322769911.8U
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Chinese (zh)
Inventor
褚兵
徐鹏飞
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Anhui Xunying New Energy Group Co ltd
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Anhui Xunying New Energy Group Co ltd
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Abstract

The utility model discloses a liquid cooling integrated box body for energy storage, which comprises an aluminum box body, wherein the bottom of the aluminum box body is provided with a cooling structure, the bottom of the aluminum box body is provided with an internal cooling channel and an external cooling channel, the aluminum box body and the cooling structure are directly formed by one-time die casting, so that the defect of the liquid cooling integrated box body is greatly reduced, and the problems of cracks and untight sealing caused by repeated welding of the box body in the manufacturing process are avoided; the cooling grooves are formed in the surfaces of the inner cooling channel and the outer cooling channel of the cooling structure, the inner cooling channel and the cooling grooves in the surfaces of the outer cooling channel are communicated with each other, a sealing plate is fixedly arranged at the bottom of the aluminum box body, and a flow channel is formed between the sealing plate and the cooling grooves, so that cooling water can be cooled circularly; one side of the external cooling channel, which is close to the edge of the aluminum box body, is provided with a positioning groove with higher height, so that the sealing plate can be positioned at the bottom of the aluminum box body through the positioning groove, and the aluminum box body and the sealing plate can be welded integrally.

Description

Liquid cooling integrated box body for energy storage
Technical Field
The utility model relates to the technical field of energy storage batteries, in particular to a liquid cooling integrated box body for energy storage.
Background
In order to meet the increasing demand of energy storage market, the development of lithium ion batteries with high voltage and large capacity is a prerequisite for further development of energy storage. At present, in the field of large-scale energy storage of lithium ion batteries, a module is basically synthesized by using a lithium battery monomer in an external serial-parallel connection mode, and then the module is assembled into a battery box in a serial-parallel connection mode. Since the battery module requires a large amount of structural materials, the weight and volume of the battery case are increased, resulting in lower energy density.
Most of the existing battery modules are welded for many times through sheet metal parts and extruded aluminum profiles, and the box body is complex in manufacturing process and easy to cause problems such as cracks, poor sealing and the like. For example, the utility model discloses a liquid cooling integration battery module structure for energy storage that bulletin number is CN217562669U, the power distribution box comprises a box body, the box is including the open casing in both sides, and the open department in casing both sides is connected with the apron, installs a plurality of in the casing and rolls up the core module, and the cooling device that is used for rolling up the core module cooling is installed to the inner wall of lower extreme about the casing.
The battery module is assembled through multiple welding, cracks, poor sealing and the like are easy to occur, and meanwhile, an additional cooling device is required to be installed in the module, so that the installation steps become more complicated.
Disclosure of Invention
The utility model aims to solve the problems that the battery module in the background technology is easy to crack and is not tight in sealing and a cooling device is required to be additionally arranged on a battery box through splicing installation, and provides a liquid cooling integrated box body for energy storage.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides a liquid cooling integration box for energy storage, includes the aluminium box, and the bottom of aluminium box is provided with cooling structure, cooling structure includes:
the two internal cooling channels are arranged at the bottom of the aluminum box body, and the internal cooling channels are arranged at the bottom of the aluminum box body in a rotary mode;
The external cooling channel is arranged at the bottom of the aluminum box body, and the external cooling channel is arranged at the outer ring of the internal cooling channel;
The cooling grooves are arranged on the surfaces of the inner cooling channel and the outer cooling channel, the cooling grooves on the surfaces of the inner cooling channel and the outer cooling channel are communicated with each other, a positioning groove is arranged on one side, close to the outer part of the aluminum box body, of the cooling groove of the outer cooling channel, and the height of the positioning groove is higher than that of the opposite cooling groove;
the two liquid inlet and outlet tanks are arranged at one side of the bottom of the aluminum box body and are communicated with the corresponding cooling grooves on the surface of the internal cooling channel;
The bottom of the aluminum box body is fixedly provided with a sealing plate, and the shape of one side of the sealing plate close to the cooling structure is matched with the cooling structure.
As a further scheme of the utility model: the internal cooling channels on two sides are symmetrically arranged about the vertical symmetry plane of the aluminum box body.
As a further scheme of the utility model: the liquid inlet and outlet groove is trapezoid, and the height of the liquid inlet and outlet groove gradually increases from the joint of the liquid inlet and outlet groove and the internal cooling channel to the external direction of the aluminum box body.
As a further scheme of the utility model: one side of the aluminum box body is provided with two liquid inlet and outlet ports which are communicated with the liquid inlet and outlet groove.
As a further scheme of the utility model: the aluminum box body is fixedly connected with the sealing plate through soldering.
As a further scheme of the utility model: the shape of one side of the sealing plate, which is close to the aluminum box body, is matched with the shape of the cooling groove on the surface of the internal cooling channel and the external cooling channel.
The utility model has the beneficial effects that:
(1) According to the liquid cooling integrated box body for energy storage, the aluminum box body and the cooling structure are directly subjected to one-time die casting forming, so that the defects of the liquid cooling integrated box body are greatly reduced, the problem that the box body is welded for many times in a manufacturing process, so that cracks and sealing are not tight is solved, and compared with a sheet metal steel box body, the aluminum box body is smaller in density and lighter in overall weight;
(2) According to the liquid cooling integrated box body for energy storage, the cooling structure is arranged, the cooling grooves are formed in the surfaces of the inner cooling channel and the outer cooling channel of the cooling structure, and when the sealing plate and the aluminum box body are welded and installed, a cooling channel is formed between the sealing plate and the cooling grooves, so that cooling water can be cooled circularly; one side of the external cooling channel, which is close to the edge of the aluminum box body, is provided with a positioning groove with higher height, so that the sealing plate can be positioned at the bottom of the aluminum box body through the positioning groove, and the aluminum box body and the sealing plate can be welded integrally.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a liquid cooling integrated tank for energy storage;
FIG. 2 is a schematic diagram of a cooling structure in the liquid cooling integrated tank for energy storage according to the present utility model;
FIG. 3 is an enlarged view of a portion of a liquid cooled integrated tank for energy storage according to the present utility model;
Fig. 4 is a schematic installation diagram of a liquid cooling integrated tank for energy storage according to the present utility model.
In the figure: 1. an aluminum box; 2. a cooling structure; 21. an internal cooling channel; 22. a cooling groove; 23. a liquid inlet and outlet tank; 24. a liquid inlet and a liquid outlet; 25. an external cooling channel; 26. a positioning groove; 3. and (5) sealing plates.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the utility model discloses a liquid cooling integrated box body for energy storage, which comprises an aluminum box body 1, wherein a cooling structure 2 is arranged at the bottom of the aluminum box body 1, and the cooling structure 2 and the aluminum box body 1 are manufactured through one-time die casting. The internal cooling channels 21 of the cooling structure 2 are arranged at the bottom of the aluminum box body 1, and the two internal cooling channels 21 are arranged at the bottom of the aluminum box body 1 in a rotary mode; the shape of the internal cooling channel 21 formed in the aluminum box body 1 is symmetrically arranged about the vertical symmetry plane of the aluminum box body 1; the surface of the inner cooling gallery 21 is provided with cooling grooves 22. Two liquid inlet and outlet tanks 23 are arranged on one side of the bottom of the aluminum box body 1, the liquid inlet and outlet tanks 23 are respectively connected with the corresponding internal cooling channels 21, and the liquid inlet and outlet tanks 23 are communicated with cooling grooves 22 on the surfaces of the internal cooling channels 21; the liquid inlet and outlet groove 23 is trapezoid in shape, and the height of the liquid inlet and outlet groove 23 gradually increases from the joint of the liquid inlet and outlet groove 23 and the internal cooling channel 21 to the outer side direction of the aluminum box body 1; two liquid inlet and outlet ports 24 are arranged on one side of the aluminum box body 1 close to the liquid inlet and outlet tank 23, and the liquid inlet and outlet ports 24 are communicated with the liquid inlet and outlet tank 23.
The bottom of the aluminum box body 1 is provided with an external cooling channel 25, and the external cooling channel 25 is arranged on the outer ring of the bottom of the aluminum box body 1; the external cooling passage 25 encloses the internal cooling passage 21, the external cooling passage 25 communicates with the internal cooling passage 21, the surface of the external cooling passage 25 is provided with cooling grooves 22, and the cooling grooves 22 of the external cooling passage 25 communicate with the cooling grooves 22 of the internal cooling passage 21. The cooling groove 22 of the external cooling channel 25 is provided with a positioning groove 26 on one side close to the outside of the aluminum case 1, and the positioning groove 26 is higher than the other side of the cooling groove 22. The positioning groove 26, which is raised from the outside, can position the connecting seal plate 3. The shape of one side of the sealing plate 3, which is close to the aluminum box body 1, is matched with the shape of the cooling grooves 22 on the surfaces of the internal cooling channel 21 and the external cooling channel 25, the sealing plate 3 is attached to the bottom of the aluminum box body 1, and the sealing plate 3 and the aluminum box body 1 are welded together through friction stir welding. The sealing plate 3 forms a flow passage with the cooling grooves 22 on the surfaces of the inner cooling passage 21 and the outer cooling passage 25, and can allow the coolant to pass therethrough.
When the liquid cooling integrated box body for energy storage is used, the aluminum box body 1 and the cooling structure 2 are directly subjected to one-time die casting molding, so that the defect of the liquid cooling integrated box body is greatly reduced, then the aluminum box body 1 and the sealing plate 3 are welded together through friction stir welding with the aluminum box body 1, and the sealing plate 3 is positioned and installed through the positioning groove 26 at the bottom of the aluminum box body 1. A flow channel is formed between the sealing plate 3 and the cooling groove 22 formed by die casting, and cooling liquid circulates between the flow channels to perform liquid cooling treatment on the aluminum box body 1. Cooling water is injected or discharged through the liquid inlet and outlet ports 24 on both sides, flows through the internal cooling channels 21 on all sides of the bottom surface of the aluminum box body 1 from the liquid inlet and outlet ports 24, and then cools the inside of the aluminum box body 1. Cooling water can circulate from the inner cooling channel 21 to the outer cooling channel 25, and the cooling water of the cooling grooves 22 on the surfaces of the inner cooling channel 21 and the outer cooling channel 25 jointly act to comprehensively cool the bottom of the aluminum box body 1. Cooling water enters and is discharged from a liquid inlet and outlet 24 through liquid inlet and outlet grooves 23 on two sides, so that the cooling water in the cooling structure 2 at the bottom of the aluminum box body 1 is conveniently replaced and cleaned.
The working principle of the utility model is as follows: according to the liquid cooling integrated box body for energy storage, the aluminum box body 1 and the cooling structure 2 are arranged, and the aluminum box body 1 and the cooling structure 2 are directly subjected to one-time die casting molding, so that the defects of the liquid cooling integrated box body are greatly reduced, the problem that the box body is welded for many times in a manufacturing process, so that cracks and sealing are not tight is avoided, and compared with a sheet metal steel box body, the aluminum box body is smaller in mass density, and the whole box body is lighter in mass; by arranging the cooling structure 2, the surfaces of the inner cooling channel 21 and the outer cooling channel 25 of the cooling structure 2 are provided with cooling grooves 22, and when the sealing plate 3 and the aluminum box body 1 are welded and installed, a cooling channel is formed between the sealing plate 3 and the cooling grooves 22 so that cooling water can be cooled circularly; the external cooling way 25 is provided with the constant head tank 26 that highly is higher near one side of aluminium box 1 edge, makes shrouding 3 can fix a position in aluminium box 1's bottom through constant head tank 26, conveniently carries out the integration welding to aluminium box 1 and shrouding 3.
The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.

Claims (6)

1. The utility model provides a liquid cooling integration box for energy storage, includes aluminium box (1), its characterized in that, the bottom of aluminium box (1) is provided with cooling structure (2), cooling structure (2) include:
Two internal cooling channels (21) which are arranged at the bottom of the aluminum box body (1), wherein the internal cooling channels (21) are arranged at the bottom of the aluminum box body (1) in a rotary way;
An external cooling channel (25) which is arranged at the bottom of the aluminum box body (1), wherein the external cooling channel (25) is arranged at the outer ring of the internal cooling channel (21);
a cooling groove (22) which is arranged on the surfaces of the inner cooling channel (21) and the outer cooling channel (25), wherein the inner cooling channel (21) is communicated with the cooling groove (22) on the surface of the outer cooling channel (25), a positioning groove (26) is arranged on one side, close to the outside of the aluminum box body (1), of the cooling groove (22) of the outer cooling channel (25), and the height of the positioning groove (26) is higher than that of the opposite cooling groove (22);
The two liquid inlet and outlet tanks (23) are arranged at one side of the bottom of the aluminum box body (1), and the liquid inlet and outlet tanks (23) are communicated with the corresponding surface cooling grooves (22) of the internal cooling channels (21);
the bottom of the aluminum box body (1) is fixedly provided with a sealing plate (3), and the shape of one side of the sealing plate (3) close to the cooling structure (2) is matched with the cooling structure (2).
2. The liquid cooling integrated tank for energy storage according to claim 1, wherein the internal cooling channels (21) on both sides are symmetrically arranged with respect to the vertical symmetry plane of the aluminum tank (1).
3. The liquid cooling integrated tank for energy storage according to claim 1, wherein the liquid inlet and outlet tank (23) is trapezoidal in shape, and the height of the liquid inlet and outlet tank (23) gradually increases from the connection of the liquid inlet and outlet tank (23) and the internal cooling passage (21) to the outside of the aluminum tank (1).
4. The liquid cooling integrated tank for energy storage according to claim 1, wherein two liquid inlet and outlet ports (24) are arranged on one side of the aluminum tank (1), and the liquid inlet and outlet ports (24) are communicated with the liquid inlet and outlet tank (23).
5. The liquid cooling integrated tank for energy storage according to claim 1, wherein the aluminum tank (1) and the sealing plate (3) are fixedly connected by soldering.
6. The liquid cooling integrated tank for energy storage according to claim 1, wherein the shape of one side of the sealing plate (3) close to the aluminum tank (1) is matched with the shape of the cooling grooves (22) on the surfaces of the inner cooling channel (21) and the outer cooling channel (25).
CN202322769911.8U 2023-10-16 2023-10-16 Liquid cooling integrated box body for energy storage Active CN221352894U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322769911.8U CN221352894U (en) 2023-10-16 2023-10-16 Liquid cooling integrated box body for energy storage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322769911.8U CN221352894U (en) 2023-10-16 2023-10-16 Liquid cooling integrated box body for energy storage

Publications (1)

Publication Number Publication Date
CN221352894U true CN221352894U (en) 2024-07-16

Family

ID=91848328

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322769911.8U Active CN221352894U (en) 2023-10-16 2023-10-16 Liquid cooling integrated box body for energy storage

Country Status (1)

Country Link
CN (1) CN221352894U (en)

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