Liquid cooling plate, liquid cooling assembly and battery module

Abstract

The utility model relates to power battery technical field, more particularly, relate to a kind of liquid cooling plate, liquid cooling assembly and battery module.The liquid cooling plate includes body and support framework, body is provided with flow channel, and the both ends of flow channel are used for with liquid inlet pipe and liquid outlet pipe communication respectively;Support framework is set in flow channel, and with the inner wall of flow channel abuts;Wherein, the both sides of support framework close to the inner wall of flow channel are concave.The liquid cooling plate can absorb the extrusion force generated by cell expansion, thereby preventing the deformation or displacement of liquid cooling plate.

Description

Technical Field

[0001] This utility model relates to the field of power battery technology, specifically to a liquid cooling plate, a liquid cooling component, and a battery module. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the performance parameters of the power battery, as the core component of electric vehicles, directly determine the vehicle's range, safety performance, and service life. Currently, ternary lithium-ion batteries have become the mainstream technology in the power battery field due to their significant energy density advantage, among which square cells have been widely used due to their compact structure and efficient assembly.

[0003] However, existing technologies suffer from the problem that liquid cooling plates are prone to deformation and displacement. Utility Model Content

[0004] The purpose of this invention is to provide a liquid cooling plate, a liquid cooling assembly, and a battery module that can absorb the compressive force generated by the expansion of the battery cell, thereby preventing the liquid cooling plate from deforming or displacing.

[0005] The embodiments of this utility model can be implemented as follows: In a first aspect, this utility model provides a liquid cooling plate, comprising: The main body is provided with a flow channel, and its two ends are used to connect to the inlet pipe and the outlet pipe, respectively. A support frame is provided, which is located inside the flow channel and abuts against the inner wall of the flow channel. Among them, the two sides of the supporting skeleton near the inner wall of the flow channel are concave.

[0006] In an optional embodiment, the support frame has two outer supports and multiple inner supports, with each inner support connected to the two outer supports at both ends; each outer support and each inner support abuts against the inner wall of the flow channel.

[0007] In an optional embodiment, the body includes two interconnected shells, each shell having a protrusion protruding in a direction away from the other shell, the two protrusions together forming a flow channel; Two outer supports abut against the junction of the two shells and two protrusions; each inner support abuts against a protrusion.

[0008] In an optional embodiment, the inner support includes a first support and a second support, with the two ends of the first support connected to the two outer supports respectively, and the two ends of the second support connected to the two outer supports respectively; both the first support and the second support abut against the inner wall of the flow channel. The extension directions of the first support and the second support are perpendicular to each other, and the intersection of the first support and the second support is connected to each other.

[0009] In an optional implementation, protective films are attached to both opposite sides of the main body.

[0010] In an optional embodiment, the main body is provided with a first clearance groove, and the support frame is provided with a second clearance groove; both the first clearance groove and the second clearance groove are used to engage with the support beam.

[0011] Secondly, this utility model provides a liquid cooling assembly, comprising: The water inlet pipe, the water outlet pipe, and multiple liquid cooling plates are arranged in sequence at intervals, with each body having its two ends connected to the water inlet pipe and the water outlet pipe, respectively.

[0012] In an optional embodiment, the water inlet pipe includes multiple water inlet sub-pipes, with each main body configured with two water inlet sub-pipes. The two water inlet sub-pipes are connected to the same end of the main body and are located on opposite sides of the main body. The water outlet pipe includes multiple water outlet sub-pipes. Each main body is equipped with two water outlet sub-pipes. The two water outlet sub-pipes are connected to the same end of the main body and are located on opposite sides of the main body.

[0013] In an optional embodiment, the liquid cooling assembly further includes multiple inlet flexible pipes and multiple outlet flexible pipes, with each inlet flexible pipe sleeved over two adjacent inlet sub-pipes; and each outlet flexible pipe sleeved over two adjacent outlet sub-pipes.

[0014] Thirdly, this utility model provides a battery module, comprising: Multiple sets of battery cell assemblies and the aforementioned liquid cooling assembly, each set of battery cell assemblies is located between two adjacent liquid cooling plates and is in contact with the two adjacent liquid cooling plates.

[0015] The beneficial effects of the liquid cooling plate, liquid cooling assembly, and battery module provided in this embodiment of the invention include: The liquid cooling plate provided in this embodiment utilizes a support frame within the flow channel. This support frame abuts against the inner wall of the flow channel, allowing the support frame to exert a reaction force on the liquid cooling plate when the battery cell expands due to power generation and exerts pressure on it, thus preventing deformation. Therefore, this embodiment avoids narrowing of the flow channel due to liquid cooling plate deformation, and also prevents loose contact between the liquid cooling plate and the battery cell due to liquid cooling plate displacement, thereby preventing a reduction in coolant capacity within the flow channel and improving the liquid cooling effect. The concave sides of the support frame near the inner wall of the flow channel create an arc-shaped gap between the support frame and the main body, achieving energy absorption. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded view of the liquid cooling plate provided in this embodiment; Figure 2 This is a cross-sectional schematic diagram of the liquid cooling plate provided in this embodiment; Figure 3 This is a schematic diagram of the supporting skeleton from a first-view perspective provided in this embodiment; Figure 4 This is a structural schematic diagram of the support frame from a second perspective provided in this embodiment; Figure 5 A schematic diagram of the liquid cooling plate, water inlet pipe, and water outlet pipe provided in this embodiment; Figure 6 This is a schematic diagram of the liquid cooling assembly provided in this embodiment; Figure 7 This is a partially exploded view of the liquid cooling assembly provided in this embodiment; Figure 8 This is a partial structural diagram of the liquid cooling assembly provided in this embodiment; Figure 9 This is a schematic diagram of the battery module provided in this embodiment.

[0018] Icons: 100-Liquid cooling plate; 110-Body; 111-Shell; 112-Protrusion; 113-First clearance groove; 101-Flow channel; 120-Support frame; 121-Outer bracket; 121a-First outer bracket; 121b-Second outer bracket; 122-Inner bracket; 1221-First bracket; 1222-Second bracket; 123-Second clearance groove; 130-Protective membrane; 131-Third clearance groove; 200-Liquid cooling assembly; 210-Inlet pipe; 211-Inlet sub-pipe; 220-Outlet pipe; 221-Outlet sub-pipe; 230-Inlet flexible pipe; 240-Outlet flexible pipe; 300-Battery module; 310-Cell assembly. Detailed Implementation

[0019] 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 this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0025] At present, the high-capacity ternary square battery cells for new energy vehicles generate significant heat during high-rate charging and discharging. The large surface of the battery cell is the main heat dissipation surface. Therefore, the mainstream solution is to integrate a liquid cooling plate on the side wall of the large surface of the battery cell. Although this can control the temperature, it has mechanical reliability issues: the high-nickel ternary battery cells have large volume changes during charging and discharging and the expansion force accumulates cyclically.

[0026] Existing aluminum alloy stamped liquid cooling plates have two main problems with long-term load-bearing: first, structural deformation reduces the cross-sectional area of ​​the flow channel, affecting heat exchange; second, micro-displacement at the cell interface damages the contact with the thermally conductive material, significantly increasing contact thermal resistance. More seriously, the cumulative expansion force during cell assembly can cause the liquid cooling plate to become unstable. These problems affect the thermal consistency and cycle life of the battery system, becoming a key bottleneck in the development of high-energy-density battery technology.

[0027] Based on the above issues, please refer to Figures 1-9 The present invention also provides a battery module 300, which includes multiple sets of battery cell assemblies 310 and a liquid cooling assembly 200. The liquid cooling assembly 200 includes an inlet pipe 210, an outlet pipe 220 and multiple liquid cooling plates 100. The multiple liquid cooling plates 100 are arranged sequentially at intervals, and the two ends of each liquid cooling plate 100 are respectively connected to the inlet pipe 210 and the outlet pipe 220. Each set of battery cell assemblies 310 is located between two adjacent liquid cooling plates 100 and is in contact with the two adjacent liquid cooling plates 100.

[0028] Understandably, each battery cell assembly 310 includes multiple battery cells arranged along the extension direction of the liquid cooling plate 100. The opposite sides of each battery cell are respectively attached to two adjacent liquid cooling plates 100, so that each battery cell can be cooled by the liquid cooling plate 100 to achieve the purpose of cooling.

[0029] Since each liquid cooling plate 100 is connected to the inlet pipe 210 and the outlet pipe 220, the coolant enters all the liquid cooling plates 100 through the inlet pipe 210, thereby exchanging heat with the battery cell that is in contact with the liquid cooling plate 100. After the heat exchange is completed, the coolant enters the outlet pipe 220 and then flows out of the outlet pipe 220, thereby carrying the heat generated by the battery cell to the battery module 300 to cool the battery module 300.

[0030] Please refer to Figures 1-9 In this embodiment, the liquid cooling plate 100 includes a body 110 and a support frame 120. The body 110 is provided with a flow channel 101, and the two ends of the body 110 are respectively used to communicate with the liquid inlet pipe and the liquid outlet pipe. The support frame 120 is disposed in the flow channel 101 and abuts against the inner wall of the flow channel 101.

[0031] Understandably, since a support frame 120 is provided inside the flow channel 101 and the support frame 120 abuts against the inner wall of the flow channel 101, the support frame 120 can exert a reaction force on the liquid cooling plate 100 when the battery cell expands due to power generation and applies pressure to the liquid cooling plate 100, so as to avoid deformation of the liquid cooling plate 100.

[0032] In this embodiment, the support frame 120 is thick at both ends and thin in the middle, so that the two sides of the support frame 120 near the inner wall of the flow channel 101 are concave, that is, the two opposite sidewalls of the support frame 120 are concave inward, thereby forming an arc-shaped gap between the support frame 120 and the body 110, thereby achieving the purpose of energy absorption.

[0033] This embodiment uses a support frame 120 to prevent the flow channel 101 from narrowing due to deformation of the liquid cooling plate 100. It also prevents the liquid cooling plate 100 from shifting and causing poor contact between the liquid cooling plate 100 and the battery cell. This avoids the reduction of coolant capacity in the flow channel 101, which would affect the liquid cooling effect. Thus, this embodiment can prevent deformation or displacement of the liquid cooling plate 100 and improve the cooling effect on the battery cell.

[0034] Specifically, the main body 110 includes two interconnected shells 111. Each shell 111 is provided with a protrusion 112 protruding away from the other shell 111, and the two protrusions 112 together form a flow channel 101. Both ends of the two shells 111 are provided with through holes, through which an inlet pipe 210 and an outlet pipe 220 pass respectively. The inlet pipe 210 is provided with an inlet channel, and the outlet pipe 220 is provided with an outlet channel, so that when the two shells 111 are connected together to form the protrusion 112, the flow channel 101 can communicate with the inlet channel and the outlet channel.

[0035] Further, please refer to Figures 1-9 The support frame 120 has two outer supports 121 and multiple inner supports 122. Each inner support 122 is connected to two outer supports 121 at both ends. Each outer support 121 and each inner support 122 abuts against the inner wall of the flow channel 101.

[0036] Understandably, the two outer supports 121 are spaced apart and connected together by the inner support 122, so that the support frame 120 is in a grid shape. Since the support frame 120 is set in the flow channel 101, the flow channel 101 is also in a grid shape. This makes the flow channel 101 in this embodiment a multi-branched and multi-turn structure, thereby forcing liquid turbulence to slow down the flow rate of the coolant, avoid the cell being too cold due to excessive local flow rate or too hot due to excessive flow rate, and also play a role in turbulence, breaking the laminar flow state of the coolant in the prior art, allowing the liquid to fully contact the wall of the flow channel 101, and improving the heat exchange efficiency.

[0037] Specifically, the two outer supports 121 abut against the connection between the two housings 111 and the two protrusions 112; each inner support 122 abuts against the protrusion 112.

[0038] Based on the foregoing, the two sides of the support frame 120 are concave. It can be deduced that the thickness of the middle part of the inner support 122 is less than the thickness of the two ends. That is, the side of the inner support 122 is concave, and the concave surface is directly opposite the protrusion 112. The inner support 122 abuts against the protrusion 112.

[0039] To prevent coolant leakage, the connection point to the housing 111 should be the edge of the protrusion 112. To improve the stability of the support frame 120, two outer supports 121 are spaced vertically, allowing each outer support 121 to connect to the upper and lower connection points respectively. The outer supports 121 also abut against the protrusions 112 of the two housings 111, enabling them to act at multiple points on the flow channel 101 to provide reaction force to the two housings 111. This prevents the protrusions 112 from concave into the flow channel 101, thus preventing the flow channel 101 from narrowing and improving cooling efficiency. The inner support 122, located between the two outer supports 121, abuts against the protrusions 112 at both ends, forming an arc-shaped gap between the inner support 122 and the protrusions 112, which is used to absorb energy.

[0040] According to the above, the inner support 122 includes a first support 1221 and a second support 1222. The two ends of the first support 1221 are respectively connected to the two outer supports 121, and the two ends of the second support 1222 are respectively connected to the two outer supports 121. Both the first support 1221 and the second support 1222 abut against the inner wall of the flow channel 101. The extension direction of the first support 1221 and the extension direction of the second support 1222 are perpendicular to each other, and the intersection of the first support 1221 and the second support 1222 is connected to each other.

[0041] It should be noted that the outer support 121 includes a first outer support 121a and a second outer support 121b. The two ends of each first support 1221 are respectively connected to the two first outer supports 121a, and the two ends of each second support 1222 are respectively connected to the two second outer supports 121b. It can be understood that the support frame 120 is composed of two parts connected together, each abutting against a shell 111, thereby ensuring that the expansion force of the battery cell is evenly transmitted and avoiding deformation of the liquid cooling plate 100 under unilateral stress.

[0042] It is understood that in this embodiment, the extension direction of the first support 1221 and the extension direction of the second support 1222 are perpendicular to each other, so that after the first support 1221 and the second support 1222 are connected at the intersection point, multiple triangular grids can be formed, thereby improving the structural stability of the support frame 120 and preventing the liquid cooling plate 100 from deforming and displacing.

[0043] The first support 1221 and the second support 1222 are thin in the middle and thick on both sides, so that the first support 1221 and the second support 1222 are concave to form a concave surface. The concave surface of the first support 1221 and the second support 1222 are directly opposite the protrusion 112. Thus, the deformation of the concave surface itself can absorb the compressive force formed by the expansion of the battery cell, thereby improving the energy absorption effect, preventing the liquid cooling plate 100 from deforming or displacing, and improving the cooling effect.

[0044] Furthermore, in this embodiment, the body 110 is provided with a first clearance groove 113, and the support frame 120 is provided with a second clearance groove 123; both the first clearance groove 113 and the second clearance groove 123 are used to engage with the support beam.

[0045] It should be noted that the battery cell module includes a support beam. Each pair of adjacent battery cells is equipped with a support beam, so that the support beam abuts against the two adjacent battery cells to separate them, thereby avoiding short circuits caused by contact between the two adjacent battery cells.

[0046] In this embodiment, each group of battery cell assemblies 310 has the same number of battery cells, and the battery cells in each group of battery cell assemblies 310 correspond to the battery cells in other battery cell assemblies 310. In addition, the extension direction of the support beam is parallel to the arrangement direction of the multiple liquid cooling plates 100, so that one support beam can abut against two corresponding battery cells in the multiple battery cell modules. In order to avoid the liquid cooling plates 100 from obstructing the installation of the support beam, the body 110 of the liquid cooling plate 100 is provided with a first clearance groove 113, and the support frame 120 is provided with a second clearance groove 123. The first clearance groove 113 and the second clearance groove 123 are used to avoid the support beam, so that the support beam can be engaged with the first clearance groove 113 and the second clearance groove 123.

[0047] In this embodiment, the number of battery cells in the battery cell assembly 310 is multiple, and the number of support beams is adjusted according to the number of battery cells. Therefore, the number of support beams is also multiple. Similarly, the number of first clearance grooves 113 and second clearance grooves 123 is also multiple. For example, if the number of battery cell assemblies 310 in each group is N, then the number of support beams is N-1, and the number of first clearance grooves 113 and second clearance grooves 123 on each liquid cooling plate 100 is also N-1.

[0048] In this embodiment, protective films 130 are connected to both opposite sides of the main body 110, that is, each liquid cooling plate 100 includes two protective films 130, each housing 111 is connected to one protective film 130, and the protective film 130 is disposed on the side of the housing 111 close to the cell assembly 310, thereby avoiding direct contact between the housing 111 and the cell assembly 310, which could lead to a short circuit.

[0049] In conjunction with the above, in this embodiment, the protective film 130 is provided with a third clearance groove 131 to avoid the support beam, and the third clearance groove 131 is engaged with the support beam. Since there are multiple support beams, there are also multiple protective films 130, and the number of each protective film 130 is the same as the number of support beams. Furthermore, the first clearance groove 113, the second clearance groove 123, and the third clearance groove 131, which are engaged with the same support beam and located on the same liquid cooling plate 100, are interconnected.

[0050] Further, please refer to Figures 1-9The water inlet pipe 210 includes multiple water inlet sub-pipes 211, with each main body 110 having two water inlet sub-pipes 211. The two water inlet sub-pipes 211 are connected to the same end of the main body 110 and are located on opposite sides of the main body 110. The water outlet pipe 220 includes multiple water outlet sub-pipes 221, with each main body 110 having two water outlet sub-pipes 221. The two water outlet sub-pipes 221 are connected to the same end of the main body 110 and are located on opposite sides of the main body 110.

[0051] As can be understood, based on the foregoing, the main body 110 includes two interconnected housings 111, and each housing 111 has an inlet subpipe 211 and an outlet subpipe 221 connected to its two ends respectively; since each housing 111 has through holes at both ends, the inlet subpipe 211 and the outlet subpipe 221 are respectively connected to the two through holes located at both ends of the housing 111. After the two housings 111 are connected to form the body 110, the two protrusions 112 together form the flow channel 101. The two through holes at the same end are connected, so that the two water inlet sub-pipes 211 are connected to each other and to the same end of the body 110. Similarly, the two water outlet sub-pipes 221 are connected to each other and to the same end of the body 110. That is, the channels of the water inlet sub-pipes 211 and the channels of the water outlet sub-pipes 221 are both connected to the flow channel 101, so that the coolant can flow into the flow channel 101 of the liquid cooling plate 100 through the channel of the water inlet sub-pipes 211. After the coolant completes heat exchange with the battery cell in the flow channel 101, it flows into the channel of the water outlet sub-pipes 221 and then flows out of the liquid cooling assembly 200 to carry the heat out of the battery module 300.

[0052] In this embodiment, the liquid cooling assembly 200 has multiple liquid cooling plates 100. The inlet sub-pipes 211 and outlet sub-pipes 220 of two adjacent liquid cooling plates 100 are connected, thereby connecting all the inlet sub-pipes 211 together in sequence and connecting all the outlet sub-pipes 221 together in sequence. This allows the coolant to be diverted through the inlet sub-pipes 211 into the flow channels 101 of different liquid cooling plates 100, and the coolant after heat exchange is collected through the outlet sub-pipes 221 for centralized outflow from the liquid cooling assembly 200.

[0053] It should be noted that the outermost liquid cooling plate 100 is only connected to one water inlet sub-pipe 211 and one water outlet sub-pipe 221.

[0054] According to the above, the liquid cooling assembly 200 also includes multiple inlet flexible pipes 230 and multiple outlet flexible pipes 240, with each inlet flexible pipe 230 sleeved on two adjacent inlet sub-pipes 211; and each outlet flexible pipe 240 sleeved on two adjacent outlet sub-pipes 221.

[0055] Because the battery cell expands during charging and discharging, it exerts pressure on the liquid cooling plate 100, causing a change in the distance between adjacent liquid cooling plates 100. Since the inlet flexible pipe 230 and outlet flexible pipe 240 are flexible, they act as a buffer to absorb the pressure from the battery cell. Furthermore, by fitting the inlet flexible pipe 230 and outlet flexible pipe 240 onto the inlet sub-pipe 211 and outlet sub-pipe 221, they prevent adjacent inlet sub-pipes 211 or outlet sub-pipes 221 from disconnecting; they also improve sealing and prevent coolant leakage.

[0056] In summary, this embodiment, by providing a support frame 120 within the flow channel 101, utilizes the contact between the support frame 120 and the inner wall of the flow channel 101. This allows the support frame 120 to exert a reaction force on the liquid cooling plate 100 when the battery cell expands due to power generation and exerts pressure on it, thus preventing deformation of the liquid cooling plate 100. Therefore, this embodiment avoids narrowing of the flow channel 101 due to deformation of the liquid cooling plate 100, and also avoids loose contact between the liquid cooling plate 100 and the battery cell due to displacement of the liquid cooling plate 100, thereby preventing a reduction in the coolant capacity within the flow channel 101 and improving the liquid cooling effect. The two sides of the support frame 120 near the inner wall of the flow channel 101 are concave, allowing an arc-shaped gap to be formed between the support frame 120 and the body 110, thereby achieving energy absorption.

[0057] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A liquid-cooled plate, characterized in that, include: The body (110) is provided with a flow channel (101), and the two ends of the body (110) are respectively used to connect with the inlet pipe and the outlet pipe; A support frame (120) is disposed within the flow channel (101) and abuts against the inner wall of the flow channel (101); The two sides of the support frame (120) near the inner wall of the flow channel (101) are concave.

2. The liquid cooling plate according to claim 1, characterized in that, The support frame (120) has two outer supports (121) and multiple inner supports (122). The two ends of each inner support (122) are connected to the two outer supports (121) respectively. Each outer support (121) and each inner support (122) abuts against the inner wall of the flow channel (101).

3. The liquid cooling plate according to claim 2, characterized in that, The body (110) includes two interconnected shells (111), each shell (111) is provided with a protrusion (112) protruding in a direction away from the other shell (111), and the two protrusions (112) together form the flow channel (101). The two outer supports (121) abut against the connection of the two housings (111) and the two protrusions (112); each inner support (122) abuts against the protrusion (112).

4. The liquid cooling plate according to claim 2, characterized in that, The inner support (122) includes a first support (1221) and a second support (1222). The two ends of the first support (1221) are respectively connected to the two outer supports (121), and the two ends of the second support (1222) are respectively connected to the two outer supports (121). Both the first support (1221) and the second support (1222) abut against the inner wall of the flow channel (101). The extension direction of the first bracket (1221) and the extension direction of the second bracket (1222) are perpendicular to each other, and the intersection of the first bracket (1221) and the second bracket (1222) is connected to each other.

5. The liquid cooling plate according to claim 1, characterized in that, The protective film (130) is connected to both sides opposite to the main body (110).

6. The liquid cooling plate according to claim 1, characterized in that, The main body (110) is provided with a first clearance groove (113), and the support frame (120) is provided with a second clearance groove (123); both the first clearance groove (113) and the second clearance groove (123) are used to engage with the support beam.

7. A liquid cooling assembly, characterized in that, include: The water inlet pipe (210), the water outlet pipe (220), and a plurality of liquid cooling plates (100) as described in any one of claims 1-6 are arranged in sequence at intervals, and the two ends of each body (110) are respectively connected to the water inlet pipe (210) and the water outlet pipe (220).

8. The liquid cooling assembly according to claim 7, characterized in that, The water inlet pipe (210) includes multiple water inlet sub-pipes (211), and each body (110) is equipped with two water inlet sub-pipes (211). The two water inlet sub-pipes (211) are connected to the same end of the body (110) and are located on opposite sides of the body (110). The water outlet pipe (220) includes multiple water outlet sub-pipes (221). Each body (110) is equipped with two water outlet sub-pipes (221). The two water outlet sub-pipes (221) are connected to the same end of the body (110) and are located on opposite sides of the body (110).

9. The liquid cooling assembly according to claim 8, characterized in that, The liquid cooling assembly (200) also includes a plurality of inlet flexible pipes (230) and a plurality of outlet flexible pipes (240), each of the inlet flexible pipes (230) being sleeved on two adjacent inlet sub-pipes (211); each of the outlet flexible pipes (240) being sleeved on two adjacent outlet sub-pipes (221).

10. A battery module, characterized in that, include: Multiple sets of battery cell assemblies (310) and liquid cooling assembly (200) according to any one of claims 7-9, wherein each set of battery cell assemblies (310) is located between two adjacent liquid cooling plates (100) and is in contact with the two adjacent liquid cooling plates (100).

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