Energy storage CCS module shell liquid cooling device

Abstract

The utility model discloses an energy storage CCS module shell liquid cooling device, which comprises a plurality of battery cells and a busbar, a shell cooling mechanism is arranged below the busbar, the shell cooling mechanism comprises a lower cooling plate, an inner cavity of the lower cooling plate is provided with an inclined water flowing cavity, the top of the lower cooling plate is provided with a plurality of vertical cooling plates at equal intervals, a plurality of water connecting pieces are arranged above the lower cooling plate, and the inclined water flowing cavity is communicated with the inclined water flowing cavity. One side of each vertical cold plate is provided with two water diversion pieces, the front face of one water diversion piece is provided with a water inlet connector, the back face of the other water diversion piece is provided with a connecting water pipe, and the front face of the lower cold plate is provided with a water drainage connector. According to the utility model, the shell cooling mechanism is arranged, and the bottom and two sides of the battery cell can be cooled at the same time through the matching of the lower cooling plate, the inclined water flowing cavity, the plurality of vertical cooling plates, the plurality of water connecting pieces, the two water diversion pieces, the connecting water pipe, the water inlet joint and the water drainage joint, so that the condition that the temperature difference between the upper part and the lower part of the battery cell is relatively large is avoided; and the service life of the battery cell is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, in particular to a liquid cooling device for an energy storage CCS module shell. Background Art

[0002] The energy storage CCS module is an integrated component used to connect and manage battery cells. The main functions of the energy storage CCS module include collecting signals during battery operation in order to effectively manage the battery. The liquid cooling device is an important component of the energy storage CCS module. Through the liquid cooling device, the energy storage CCS module can quickly complete the temperature control of the battery cell group.

[0003] The liquid cooling device of traditional energy storage CCS modules is mostly a liquid cooling plate installed at the bottom of the battery cell group. When encountering large battery cells running at high rates, this method will have a large temperature difference between the upper and lower parts of the battery cell, and the consistency of the battery cell temperature cannot be guaranteed. This will cause damage to the battery cell and greatly reduce the operating life of the battery cell. Utility Model Content

[0004] The purpose of the utility model is to provide a liquid cooling device for a CCS module shell of an energy storage system to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a liquid cooling device for a CCS module shell of an energy storage system, comprising:

[0006] Multiple cells;

[0007] A busbar, which is arranged on top of the plurality of battery cells;

[0008] A shell cooling mechanism is provided below the busbar;

[0009] The shell cooling mechanism comprises a lower cold plate, an inner cavity of the lower cold plate is provided with an oblique flow water cavity, a plurality of vertical cold plates are equidistantly provided on the top of the lower cold plate, a plurality of water connecting parts are provided above the lower cold plate, two water guide parts are provided on one side of the plurality of vertical cold plates, a water inlet joint is provided on the front of one of the water guide parts, a connecting water pipe is provided on the back of the other water guide part, and a drainage joint is provided on the front of the lower cold plate;

[0010] The vertical cold plate is composed of a vertical plate and a bent copper tube;

[0011] The water connection piece is composed of a connecting plate and a U-shaped copper tube;

[0012] The water diversion piece is composed of a second connecting plate and an L-shaped copper tube.

[0013] Preferably, the lower cold plate is fixedly connected to the bottom of the plurality of battery cells, the bottom end of the connecting water pipe is fixedly inserted and connected to the top of the lower cold plate, and one end of the drainage joint is fixedly inserted and connected to the front of the lower cold plate.

[0014] Preferably, the vertical plate is fixedly connected to the top of the lower cold plate, and the bent copper tube is fixedly embedded in the interior of the vertical plate.

[0015] Preferably, the connecting plate 1 is fixedly connected to the outer wall of the vertical plate at a corresponding position, and the U-shaped copper tube is fixedly embedded in the inner cavity of the connecting plate 1.

[0016] Preferably, the second connecting plate is fixedly connected to the outer wall of the vertical plate at a corresponding position, and the L-shaped copper tube is fixedly embedded in the inner cavity of the second connecting plate.

[0017] Preferably, the opposite ends of the two L-shaped copper tubes are fixedly connected with flared tubes, one of which is fixedly connected to the back of the water inlet joint, and the other is fixedly connected to one end of the connecting water pipe.

[0018] Technical effects and advantages of the utility model:

[0019] (1) The utility model utilizes the setting of the shell cooling mechanism, and can cool the bottom and both sides of the battery cell at the same time through the cooperation between the lower cold plate, the oblique water cavity, multiple vertical cold plates, multiple water connecting parts, two water guide parts, connecting water pipes, water inlet joints and drainage joints, thereby avoiding the occurrence of a large temperature difference between the upper and lower parts of the battery cell and improving the service life of the battery cell;

[0020] (2) The utility model utilizes the arrangement of U-shaped copper tubes and L-shaped copper tubes. The U-shaped copper tubes can be used to connect the bent copper tubes inside multiple vertical cold plates, so that cooling water can pass through the multiple vertical cold plates in sequence. The L-shaped copper tubes can be used to connect the water inlet joints and the connecting water pipes, thereby achieving water supply while also allowing the cooling water to enter the oblique flow water cavity of the lower cold plate, thereby cooling the bottom of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the shell cooling mechanism of the utility model.

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the water connecting piece of the utility model.

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the water-passing member of the utility model.

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure of the vertical cooling plate of the utility model.

[0026] In the figure: 1. battery cell; 2. busbar; 3. shell cooling mechanism; 301. lower cold plate; 302. vertical cold plate; 3021. vertical plate; 3022. bent copper tube; 303. water connecting piece; 3031. connecting plate 1; 3032. U-shaped copper tube; 304. water diversion piece; 3041. connecting plate 2; 3042. L-shaped copper tube; 305. water inlet joint; 306. connecting water pipe; 307. drainage joint; 308. flared tube; 309. oblique water flow chamber. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The utility model provides Figure 1-5 An energy storage CCS module shell liquid cooling device shown includes a plurality of battery cells 1 and a busbar 2, wherein the busbar 2 is arranged on the top of the plurality of battery cells 1, and a shell cooling mechanism 3 is arranged below the busbar 2. The plurality of battery cells 1, the busbar 2 and the shell cooling mechanism 3 constitute an energy storage CCS module, and the shell cooling mechanism 3 is used to cool the bottom and both sides of the battery cell 1 at the same time, thereby avoiding a large temperature difference between the upper and lower parts of the battery cell 1 and improving the service life of the battery cell 1;

[0029] The shell cooling mechanism 3 includes a lower cold plate 301, which is used to cool the bottom of the battery cell 1. The lower cold plate 301 is fixedly connected to the bottom of multiple battery cells 1, and can be connected by bolts or structural adhesive. The inner cavity of the lower cold plate 301 is provided with an oblique water cavity 309, and the thickness of the oblique water cavity 309 can be changed according to actual conditions. The cooling water should fill the oblique water cavity 309 when flowing through the oblique water cavity 309 to the drainage joint 307. A plurality of vertical cold plates 302 are equidistantly arranged on the top of the lower cold plate 301. The vertical cold plates 302 are used to cool the sides of the battery cell 1. The number of vertical cold plates 302 and water connecting parts 303 can be changed according to the number of battery cells 1. The vertical cold plates 302 are composed of vertical The upper surface of the lower cold plate 301 is provided with a plurality of water connecting parts 303, and the water connecting parts 303 are used to connect the two vertical cold plates 302. The water connecting parts 303 are composed of a connecting plate 1 3031 and a U-shaped copper tube 3032. The connecting plate 1 3031 is fixedly connected to the top of the lower cold plate 301, and the bent copper tube 3022 is fixedly embedded in the inside of the vertical plate 3021. One end of the two bent copper tubes 3022 located on the outside is connected to the corresponding U-shaped copper tube 3032, and the other end is connected to the corresponding L-shaped copper tube 3042. Both ends of the multiple bent copper tubes 3022 located inside are connected to the U-shaped copper tube 3032. A plurality of water connecting parts 303 are arranged above the lower cold plate 301. The water connecting parts 303 are used to connect the two vertical cold plates 302. The water connecting parts 303 are composed of a connecting plate 1 3031 and a U-shaped copper tube 3032. The connecting plate 1 3031 is fixedly connected to the corresponding vertical plate 30 21, a U-shaped copper tube 3032 is fixedly embedded in the inner cavity of the connecting plate 1 3031, two water guides 304 are provided on one side of the plurality of vertical cold plates 302, the water guide 304 is used to introduce cooling water into or out of the vertical cold plates 302, the water guide 304 is composed of a connecting plate 2 3041 and an L-shaped copper tube 3042, the connecting plate 2 3041 is fixedly connected to the outer wall of the vertical plate 3021 at a corresponding position, the L-shaped copper tube 3042 is fixedly embedded in the inner cavity of the connecting plate 2 3041, a water inlet joint 305 is provided on the front side of one of the water guides 304, the water inlet joint 305 is used to add cooling water to the shell cooling mechanism 3, and a connecting water pipe 306 is provided on the back side of the other water guide 304, the cooling water is passed through The water enters the oblique flow water chamber 309 inside the lower cold plate 301 through the connecting water pipe 306, and the opposite ends of the two L-shaped copper tubes 3042 are fixedly connected with the flared tubes 308. The flared tubes 308 are used to facilitate the connection of the L-shaped copper tubes 3042 with other components. One of the flared tubes 308 is fixedly connected to the back of the water inlet joint 305, and the other flared tube 308 is fixedly connected to one end of the connecting water pipe 306. The bottom end of the connecting water pipe 306 is fixedly inserted and connected with the top of the lower cold plate 301. The front side of the lower cold plate 301 is provided with a drain joint 307. The drain joint 307 is used to discharge the cooling water inside the shell cooling mechanism 3, and one end of the drain joint 307 is fixedly inserted and connected with the front side of the lower cold plate 301.

[0030] Working principle of this utility model:

[0031] When cooling the battery cell 1 in the energy storage CCS module, the cooling water first enters the L-shaped copper tube 3042 inside the first connecting plate 2 3041 on the front of the battery cell 1 through the water inlet joint 305. Then, as the cooling water continues to enter, the cooling water enters the curved copper tube 3022 inside the first vertical plate 3021 on the front of the battery cell 1. After the cooling water passes through the curved copper tube 3022, the cooling water enters the U-shaped copper tube 3032 inside the first connecting plate 1 3031 and flows into the curved copper tube 3032 inside the next vertical plate 3021. Tube 3022, repeat the above steps until the cooling water enters the L-shaped copper tube 3042 inside the second connecting plate 3041. During the above process, the cooling water will cool the side of the battery cell 1, and then the cooling water will flow into the oblique flow water cavity 309 inside the lower cold plate 301 through the expanded tube 308 and the connecting water pipe 306, thereby cooling the bottom of the battery cell 1, and finally the cooling water will be discharged from the drain joint 307, which effectively avoids the occurrence of a large temperature difference between the upper and lower parts of the battery cell 1, avoids damage to the battery cell 1 due to the temperature difference, and improves the service life of the battery cell 1.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A liquid cooling device for a CCS module housing, comprising: A plurality of battery cells (1); A busbar (2), wherein the busbar (2) is arranged on top of the plurality of battery cells (1); The invention is characterized in that a shell cooling mechanism (3) is provided below the busbar (2); The shell cooling mechanism (3) comprises a lower cold plate (301), an inner cavity of the lower cold plate (301) is provided with an oblique flow water cavity (309), a plurality of vertical cold plates (302) are equidistantly provided on the top of the lower cold plate (301), a plurality of water connecting parts (303) are provided above the lower cold plate (301), two water guide parts (304) are provided on one side of the plurality of vertical cold plates (302), a water inlet joint (305) is provided on the front of one of the water guide parts (304), a connecting water pipe (306) is provided on the back of the other water guide part (304), and a drainage joint (307) is provided on the front of the lower cold plate (301); The vertical cold plate (302) is composed of a vertical plate (3021) and a bent copper tube (3022); The water connection part (303) is composed of a connection plate (3031) and a U-shaped copper tube (3032); The water guide member (304) is composed of a second connecting plate (3041) and an L-shaped copper tube (3042).

2. The energy storage CCS module housing liquid cooling device according to claim 1, characterized in that: The lower cold plate (301) is fixedly connected to the bottom of the plurality of battery cells (1), the bottom end of the connecting water pipe (306) is fixedly connected through insertion with the top of the lower cold plate (301), and one end of the drainage joint (307) is fixedly connected through insertion with the front of the lower cold plate (301).

3. The energy storage CCS module housing liquid cooling device according to claim 1, characterized in that: The vertical plate (3021) is fixedly connected to the top of the lower cold plate (301), and the bent copper tube (3022) is fixedly embedded in the interior of the vertical plate (3021).

4. The energy storage CCS module housing liquid cooling device according to claim 1, characterized in that: The connecting plate 1 (3031) is fixedly connected to the outer wall of the vertical plate (3021) at a corresponding position, and the U-shaped copper tube (3032) is fixedly embedded in the inner cavity of the connecting plate 1 (3031).

5. The energy storage CCS module housing liquid cooling device according to claim 1, characterized in that: The second connecting plate (3041) is fixedly connected to the outer wall of the vertical plate (3021) at a corresponding position, and the L-shaped copper tube (3042) is fixedly embedded in the inner cavity of the second connecting plate (3041).

6. The energy storage CCS module housing liquid cooling device according to claim 1, characterized in that: The opposite ends of the two L-shaped copper tubes (3042) are fixedly connected to flared tubes (308), one of which is fixedly connected to the back of the water inlet joint (305), and the other of which is fixedly connected to one end of the connecting water pipe (306).

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