Energy storage liquid-cooled battery module

Abstract

The utility model relates to a kind of energy storage liquid-cooled battery module, belong to energy storage battery technical field, including box and the box cover of cooperation installation with the box, the box is equipped with several liquid cooling plates that are sequentially parallel, the inner portion of any one liquid cooling plate is communicated with water inlet pipe, drain pipe respectively, the water inlet end of the water inlet pipe is set outside the box, the water outlet end of the drain pipe is set outside the box, any two adjacent liquid cooling plate between the electric core is equipped with. The application is set up several liquid cooling plates, water inlet pipe, drain pipe, the two sides of electric core contact with liquid cooling plate, compared with prior art, contact area is large, the overall temperature control efficiency of electric core is high, the temperature control management effect of electric core.

Description

Technical Field

[0001] This utility model relates to the field of energy storage batteries, and in particular to an energy storage liquid-cooled battery module. Background Technology

[0002] In existing energy storage system lithium battery PACK pack heat exchange cold plate solutions, a single cold plate at the bottom is typically used, which is brazed to form a closed pipe. Heat exchange is achieved by cooling the solution inside the bottom pipe to the bottom of the battery cell. This solution usually requires welding a large cold plate to the front and rear pipe sealing plates to form a flow channel. The contact area with the battery cell is relatively small, resulting in low overall temperature control efficiency for the battery cell. Due to the liquid channel, it is not easy to control the temperature uniformity of the battery cell, leading to poor temperature control management and making it difficult to effectively suppress the occurrence of thermal runaway of the battery cell. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides an energy storage liquid-cooled battery module to solve the problems mentioned in the background art.

[0004] To achieve the above-mentioned utility model objectives, this utility model provides an energy storage liquid-cooled battery module, including a housing and a housing cover that is installed in conjunction with the housing. The housing is provided with a plurality of liquid-cooled plates arranged in parallel in sequence. The interior of any one of the liquid-cooled plates is connected to an inlet pipe and a drain pipe, respectively. The inlet end of the inlet pipe is located outside the housing, and the outlet end of the drain pipe is located outside the housing. A battery cell is provided between any two adjacent liquid-cooled plates.

[0005] Furthermore, the distance between any two adjacent liquid cooling plates is the same.

[0006] Furthermore, a thermally conductive and insulating silicone pad is provided between the battery cell and the liquid cooling plate.

[0007] Furthermore, the housing is provided with a mounting frame, which includes a base frame and a groove on the base frame that mates with the liquid cooling plate.

[0008] Furthermore, the inner side of the box cover is provided with several side limiting protrusions arranged side by side, and a top protrusion is provided between any two adjacent side limiting protrusions.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This application sets up several liquid cooling plates, water inlet pipes, and water outlet pipes, with both sides of the battery cell in contact with the liquid cooling plates. Compared with existing technologies, this provides a larger contact area, higher overall temperature control efficiency for the battery cell, and better temperature control management. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0012] Figure 2 This is a schematic diagram of the internal three-dimensional structure of an embodiment of the present utility model;

[0013] Figure 3 for Figure 2 A magnified structural diagram of A in the middle;

[0014] Figure 4 This is another three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0015] Figure 5 for Figure 4 A schematic diagram of the main structure. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. The embodiments of this utility model are described below with reference to the accompanying drawings.

[0017] like Figure 1-5 As shown, an energy storage liquid-cooled battery module includes a housing 1 and a housing cover 2 that is installed in conjunction with the housing 1. The housing 1 is provided with a plurality of liquid cooling plates 3 arranged in parallel in sequence. The interior of any one of the liquid cooling plates 3 is connected to a water inlet pipe 4 and a water outlet pipe 5 respectively. The water inlet end 12 of the water inlet pipe 4 is located outside the housing 1, and the water outlet end 13 of the water outlet pipe 5 is located outside the housing 1. A battery cell 6 is provided between any two adjacent liquid cooling plates 3.

[0018] Specifically, the liquid cooling plate 3 has a cavity that can fill the interior of the liquid cooling plate 3 and connect to the water inlet pipe 4 and the drain pipe 5. Cooling liquid enters from the water inlet pipe 4, passes through the interior of the liquid cooling plate 3, and exits from the drain pipe 5. In other embodiments of this example, multiple thin conductive pipes can be arranged inside the liquid cooling plate 3 to fill the interior of the liquid cooling plate 3. Specifically, cold water can be injected from the water inlet end 12 of the water inlet pipe 4, then pass through the liquid cooling plate 3 and the drain pipe 5, and then exit from the water outlet end 13, carrying away the internal heat. By setting the liquid cooling plates 3 on both sides of the battery cell 6, the contact area with the battery cell 6 is large, which can better and faster carry away the heat generated by the battery cell 6, resulting in high overall temperature control efficiency and good temperature control management effect of the battery cell.

[0019] In some embodiments, the distance between any two adjacent liquid cooling plates 3 is the same. Specifically, since the specifications of the battery cells 6 are the same, the distance between the liquid cooling plates 3 is the same, which facilitates manufacturing and meets the cooling requirements of the battery cells 6.

[0020] In some embodiments, a thermally conductive insulating silicone pad 7 is provided between the battery cell 6 and the liquid cooling plate 3. Specifically, under the thermal conductivity of the thermally conductive insulating silicone pad 7, the side liquid cooling plate 3 performs uniform heat exchange on the battery cell 6. The heat generated by the battery cell 6 can be carried away by the flow of coolant, thereby cooling the battery cell 6 and ensuring that the temperature of the battery cell 6 is cooled to a reasonable range. It also achieves good heat dissipation consistency, further improving the temperature uniformity of the battery cell 6 in the PACK pack. At the same time, it suppresses the occurrence of thermal runaway caused by overheating of the battery cell 6, allowing the battery cell 6 to operate in a reasonable temperature environment, thereby improving the overall conversion efficiency of the PACK and ensuring the safety of the battery side liquid-cooled PACK pack.

[0021] In some embodiments, the housing 1 is provided with a mounting bracket 8, which includes a base frame 9. The base frame 9 has a groove that mates with the liquid cooling plate 3. Specifically, the mounting bracket 8 is located inside the housing 1 and is used to install the liquid cooling plate 3 and the battery cell 6. The base frame 9 has a groove that mates with the liquid cooling plate 3. During installation, the liquid cooling plate 3 is snapped into the groove to complete the positioning. In addition, a pressure relief valve and a BMS control module can also be installed inside the housing 1. When the pressure inside the housing is too high, the pressure can be released through the pressure relief valve. The BMS control module is used to manage the internal battery cells, collect the battery cell voltage and temperature in real time, and collect data from other detectors inside the housing.

[0022] In some embodiments, the inner side of the cover 2 is provided with a plurality of side limiting protrusions 10 arranged side by side, and a top protrusion 11 is provided between any two adjacent side limiting protrusions 10. Specifically, after the battery cell 6 is installed, the cover 2 is installed, and the top protrusion 11 on the cover 2 abuts against the top of the battery cell 6. The side limiting protrusions 10 on the cover 2 are arranged between the two rows of battery cells 6 to limit the position between the two rows of battery cells 6, so that the position of the battery cell 6 is stable and reliable after the cover 2 is installed.

[0023] This application sets up several liquid cooling plates 3, water inlet pipes 4, and drain pipes 5, with both sides of the battery cell 6 in contact with the liquid cooling plates 3. Compared with the prior art, this application has a large contact area, high overall temperature control efficiency of the battery cell 6, and good temperature control management effect of the battery cell 6.

[0024] The technical solution of this utility model has been described above with reference to specific embodiments. However, it should be noted that the above description is only for explaining the solution of this utility model and should not be construed as a specific limitation on the scope of protection of the utility model in any way. Based on this explanation, other specific embodiments or equivalent substitutions of this utility model that can be conceived by those skilled in the art without creative effort will all fall within the scope of protection of this utility model.

Claims

1. An energy storage liquid-cooled battery module, characterized in that, The device includes a housing (1) and a cover (2) that is installed in conjunction with the housing (1). The housing (1) contains several liquid cooling plates (3) arranged in parallel in sequence. The interior of any one of the liquid cooling plates (3) is connected to a water inlet pipe (4) and a drain pipe (5). The water inlet end (12) of the water inlet pipe (4) is located outside the housing (1), and the water outlet end (13) of the drain pipe (5) is located outside the housing (1). A battery cell (6) is provided between any two adjacent liquid cooling plates (3).

2. The energy storage liquid-cooled battery module according to claim 1, characterized in that, The distance between any two adjacent liquid cooling plates (3) is the same.

3. The energy storage liquid-cooled battery module according to claim 1, characterized in that, A thermally conductive and insulating silicone pad (7) is provided between the battery cell (6) and the liquid cooling plate (3).

4. The energy storage liquid-cooled battery module according to claim 1, characterized in that, The housing (1) is provided with a mounting bracket (8), which includes a base frame (9) and a groove that mates with the liquid cooling plate (3).

5. The energy storage liquid-cooled battery module according to claim 1, characterized in that, The inner side of the box cover (2) is provided with a number of side limiting protrusions (10) arranged side by side, and a top protrusion (11) is provided between any two adjacent side limiting protrusions (10).

Images