Liquid cooling plate assembly and energy storage battery device

Abstract

The utility model discloses a liquid cooling plate subassembly and energy storage battery device relates to energy storage device technical field, including base plate, liquid cooling plate and exhaust plate, liquid cooling plate is fitted on the base plate, and the one side surface of liquid cooling plate back to the base plate is used as liquid cooling surface, liquid cooling plate forms the liquid cooling channel that is used for the introduction of cooling liquid, the part of waiting for heat dissipation can be provided on the liquid cooling surface, and the exhaust plate is used for the heat dissipation of the part of waiting for heat dissipation. The cooling liquid is in indirect contact with the to-be-cooled part through the liquid cooling surface for heat exchange; the smoke exhaust plate is arranged on the base plate in an attached mode, the surface of the side, opposite to the base plate, of the smoke exhaust plate is a smoke exhaust face, a smoke inlet is formed in the smoke exhaust face and used for corresponding to the smoke outlet position of a component to be cooled, a smoke outlet is formed in the smoke exhaust plate, the smoke inlet and the smoke outlet are communicated, a smoke exhaust channel is formed, and smoke can be led out from the smoke outlet at the preset position. The liquid cooling plate assembly disclosed by the utility model has the functions of cooling, heat dissipation and smoke exhaust, so that the space occupation of a smoke exhaust device is reduced, and the energy density of the battery pack can be ensured while the safety of the battery pack is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage devices, and more specifically to a liquid cooling plate assembly and an energy storage battery device. Background Art

[0002] With the continuous development of the energy storage industry, people's safety requirements for energy storage systems have also increased. In order to enhance the safety of the battery pack, the existing technology usually sets an exhaust channel connected to the battery cell explosion-proof valve in the battery pack so that when the battery cell explosion-proof valve is activated, the smoke and electrolyte can be discharged and collected in a directional manner. However, the setting of the smoke exhaust device occupies a certain space inside the battery pack, reducing the energy density of the battery pack.

[0003] Therefore, how to improve the safety of the battery pack while ensuring that the energy density of the battery pack is not affected has become a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0004] In view of this, an object of the present invention is to provide a liquid cooling plate assembly to improve the safety of a battery pack while ensuring that the energy density of the battery pack is not affected.

[0005] Another object of the present utility model is to provide an energy storage battery device including the liquid cooling plate assembly.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A liquid cooling plate assembly, comprising:

[0008] substrate;

[0009] A liquid cooling plate is arranged on the substrate, with a surface facing away from the substrate serving as a liquid cooling surface, and the liquid cooling plate is formed with a liquid cooling channel for the flow of cooling liquid;

[0010] The smoke exhaust plate is fitted on the substrate, and the surface on the side facing away from the substrate is the smoke exhaust surface. The smoke exhaust surface is provided with a smoke inlet, and the smoke exhaust plate is provided with a smoke outlet. The smoke inlet and the smoke outlet are connected to form a smoke exhaust channel.

[0011] Optionally, in the above-mentioned liquid cooling plate assembly, the smoke exhaust plate includes a plurality of smoke exhaust branch pipes that are fitted on the base plate, and a surface of the smoke exhaust branch pipe that faces away from the base plate is the smoke exhaust surface on which the smoke inlet is provided. The plurality of smoke exhaust branch pipes are arranged at intervals, and the liquid cooling plate is arranged between two adjacent smoke exhaust branch pipes.

[0012] Optionally, in the above-mentioned liquid cooling plate assembly, each of the smoke exhaust branch pipes is provided with the smoke outlet to form mutually independent smoke exhaust channels; or,

[0013] The smoke exhaust plate further comprises a smoke exhaust gas collecting duct, which is fitted on the base plate and provided with the smoke outlet. The smoke exhaust gas collecting duct is connected with each of the smoke exhaust branch ducts to form the smoke exhaust channel together.

[0014] Optionally, in the above-mentioned liquid cooling plate assembly, each of the smoke exhaust branch pipes is arranged at equal intervals and in parallel;

[0015] Along the extension direction of the smoke exhaust branch pipes, a plurality of smoke inlets are evenly spaced on the smoke exhaust surface of each of the smoke exhaust branch pipes.

[0016] Optionally, in the above-mentioned liquid cooling plate assembly, the liquid cooling plate includes a plurality of liquid cooling branch pipes, the liquid cooling branch pipes are arranged on the base plate, and the surface on the side facing away from the base plate is the liquid cooling surface, and the liquid cooling branch pipes and the smoke exhaust branch pipes are arranged in an alternating manner.

[0017] Optionally, in the above-mentioned liquid cooling plate assembly, each of the liquid cooling branch pipes is provided with a liquid inlet and a liquid outlet, and forms the liquid cooling channels which are independent of each other; or,

[0018] The liquid cooling plate also includes a liquid cooling main pipeline, which is fitted on the base plate and is provided with a liquid inlet and a liquid outlet. The liquid cooling main pipeline is connected to each of the liquid cooling branch pipelines and together constitutes the liquid cooling channel.

[0019] Optionally, in the above-mentioned liquid cooling plate assembly, the smoke outlet and the liquid inlet or the liquid outlet are located at the same end or different ends of the base plate.

[0020] Optionally, in the above-mentioned liquid cooling plate assembly, the liquid cooling branch pipe is arranged in close contact with the smoke exhaust branch pipe; or,

[0021] A heat-conducting material is filled between the liquid-cooling branch pipe and the smoke exhaust branch pipe; or,

[0022] The liquid cooling branch pipe and the smoke exhaust branch pipe share the same side wall.

[0023] Optionally, in the above-mentioned liquid cooling plate assembly, the smoke exhaust surface and the liquid cooling surface are in the same plane.

[0024] Optionally, in the above-mentioned liquid cooling plate assembly, the base plate, the liquid cooling plate and the smoke exhaust plate are independent of each other; or,

[0025] At least one of the liquid cooling plate and the smoke exhaust plate is an integrated structure with the base plate.

[0026] An energy storage battery device comprises an energy storage component and the above-mentioned liquid cooling plate assembly, wherein the energy storage component is arranged on the liquid cooling plate assembly and has a smoke outlet, and the smoke outlet is embedded in the smoke inlet.

[0027] Optionally, the above energy storage battery device further includes a shell, wherein the shell and the liquid cooling plate assembly together enclose an installation chamber, and the energy storage component is arranged in the installation chamber.

[0028] Optionally, in the above energy storage battery device, a seal is provided between the smoke inlet and the energy storage component; and / or,

[0029] The liquid cooling surface is provided with a positioning installation groove for embedding the sealing member, and each of the smoke inlets is arranged in the positioning installation groove in a one-to-one correspondence.

[0030] The liquid cooling plate assembly provided by the utility model includes a substrate, a liquid cooling plate and a smoke exhaust plate. The liquid cooling plate is fitted on the substrate, and the side surface facing away from the substrate is used as a liquid cooling surface. The liquid cooling plate is formed with a liquid cooling channel for introducing a cooling liquid. The heat dissipation component can be arranged on the liquid cooling surface, and the cooling liquid is indirectly in contact with the heat dissipation component through the liquid cooling surface for heat exchange. The smoke exhaust plate is fitted on the substrate, and the side surface facing away from the substrate is a smoke exhaust surface. A smoke inlet is arranged on the smoke exhaust surface, and the smoke inlet is used to correspond to the smoke outlet position of the heat dissipation component. A smoke outlet is arranged on the smoke exhaust plate, and the smoke inlet and the smoke outlet are connected to form a smoke exhaust channel, so that the smoke can be drawn out from the smoke outlet at a preset position. The smoke exhaust plate and the liquid cooling plate are arranged on the same surface of the substrate, and the structures do not interfere with each other.

[0031] Compared with the prior art, the liquid cooling plate assembly provided by the utility model realizes the integration of the liquid cooling plate and the smoke exhaust plate, so that the liquid cooling plate assembly has both cooling and heat dissipation and smoke exhaust functions, reducing the space occupied by the smoke exhaust device, and can improve the safety of the battery pack while ensuring the energy density of the battery pack.

[0032] The energy storage battery device disclosed in the utility model includes an energy storage component and the above-mentioned liquid cooling plate assembly, the energy storage component is arranged on the liquid cooling plate assembly, and has a smoke outlet, and the smoke outlet is embedded in the smoke inlet. Due to the above-mentioned liquid cooling plate assembly, it also has the above-mentioned structure and beneficial effects. Other structures can refer to the prior art and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 This is a schematic diagram of the overall structure of the first liquid cooling plate assembly disclosed in an embodiment of the utility model;

[0035] Figure 2 This is an exploded view of the first liquid cooling plate assembly disclosed in an embodiment of the utility model;

[0036] Figure 3 This is a schematic diagram of assembling the first liquid cooling plate assembly and the battery module disclosed in the embodiment of the utility model;

[0037] Figure 4 A schematic diagram of the structure of a single battery cell in a battery module disclosed in an embodiment of the utility model;

[0038] Figure 5 A top view of the energy storage battery device disclosed in an embodiment of the utility model;

[0039] Figure 6 for Figure 5 Schematic diagram of the cross section at AA in the middle;

[0040] Figure 7 for Figure 6 A partial enlarged view of the

[0041] Figure 8 This is a schematic diagram of the overall structure of a second liquid cooling plate assembly disclosed in an embodiment of the utility model;

[0042] Fig. 9 This is a schematic diagram of assembling the second liquid cooling plate assembly and the battery module disclosed in the embodiment of the utility model;

[0043] Fig.10 This is an exploded view of a third liquid cooling plate assembly disclosed in an embodiment of the utility model;

[0044] Fig.11 This is an exploded view of the energy storage battery device disclosed in an embodiment of the utility model.

[0045] Among them, 100 is the substrate;

[0046] 200 is a liquid cooling plate, 201 is a liquid inlet, 202 is a liquid outlet, 203 is a liquid cooling channel, 210 is a liquid cooling branch pipe, and 220 is a liquid cooling main pipe;

[0047] 300 is a smoke exhaust plate, 301 is a smoke inlet, 302 is a smoke outlet, 303 is a smoke exhaust channel, 304 is a sealing member, 310 is a smoke exhaust branch pipe, and 320 is a smoke exhaust gas collecting pipe;

[0048] 400 is an energy storage component, 410 is a battery cell, 411 is a pole, 412 is a smoke outlet, and 420 is a shell. DETAILED DESCRIPTION

[0049] The core of the utility model is to disclose a liquid cooling plate assembly to improve the safety of the battery pack while ensuring that the energy density of the battery pack is not affected.

[0050] Another object of the present utility model is to provide an energy storage battery device including the liquid cooling plate assembly.

[0051] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary as solutions of the utility model described in the claims. It should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. In the absence of conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0052] Combination Figure 1 , Figure 2 , Figure 6 and Figure 7 The liquid cooling plate assembly disclosed in the utility model includes a substrate 100, a liquid cooling plate 200 and a smoke exhaust plate 300. The liquid cooling plate 200 is arranged on the substrate 100, and the side surface facing away from the substrate 100 is used as a liquid cooling surface. The liquid cooling plate 200 is formed with a liquid cooling channel 203 for passing a cooling liquid. The heat dissipation component can be arranged on the liquid cooling surface, and the cooling liquid is indirectly in contact with the heat dissipation component through the liquid cooling surface for heat exchange; the smoke exhaust plate 300 is arranged on the substrate 100, and the side surface facing away from the substrate 100 is a smoke exhaust surface. A smoke inlet 301 is arranged on the smoke exhaust surface. The smoke inlet 301 is used to correspond to the smoke outlet position of the heat dissipation component. A smoke outlet 302 is arranged on the smoke exhaust plate 300. The smoke inlet 301 is connected to the smoke outlet 302 to form a smoke exhaust channel 303, so that the smoke can be led out from the smoke outlet 302 at a preset position. The smoke exhaust plate 300 and the liquid cooling plate 200 are disposed on the same surface of the base plate 100 and do not interfere with each other in structure.

[0053] The component to be cooled is described as a battery module, which is composed of multiple battery cells 410. The smoke outlet 412 (explosion-proof valve) of the battery cell 410 is embedded in the smoke inlet 301 as a smoke outlet. The liquid cooling plate 200 can dissipate heat for the battery module. When thermal runaway occurs in the battery cell 410, the smoke generated at the smoke outlet 412 can enter the smoke exhaust channel 303 from the smoke inlet 301 and be discharged from the smoke outlet 302, thereby ensuring safe operation.

[0054] Compared with the prior art, the liquid cooling plate assembly disclosed in the utility model realizes the integration of the liquid cooling plate 200 and the smoke exhaust plate 300, so that the liquid cooling plate assembly has both cooling and heat dissipation functions and smoke exhaust functions, reducing the space occupied by the smoke exhaust device, and can improve the safety of the battery pack while ensuring the energy density of the battery pack.

[0055] In some embodiments, a plurality of liquid cooling plates 200 and a plurality of smoke exhaust plates 300 are arranged alternately on the substrate 100 to ensure the uniformity of temperature at various locations on the liquid cooling plate assembly, and to enable the smoke outlet portion 412 of each battery cell 410 to be located closer to the liquid cooling plate 200. Further, when the battery cell 410 is about to experience thermal runaway, the liquid cooling plate 200 can cool down the area near the smoke outlet portion 412, thereby delaying the occurrence of thermal runaway of the battery cell 410 and further improving safety performance.

[0056] In one embodiment, the smoke exhaust plate 300 includes a plurality of smoke exhaust branch pipes 310 that are attached to the base plate 100. The surface of the smoke exhaust branch pipes 310 that faces away from the base plate 100 is a smoke exhaust surface provided with a smoke inlet 301. The plurality of smoke exhaust branch pipes 310 are arranged at intervals, and each liquid cooling plate 200 (each liquid cooling plate 200 has a corresponding liquid cooling channel 203) is arranged one by one between two adjacent smoke exhaust branch pipes 310.

[0057] Specifically, combined Fig.10 Each smoke exhaust branch pipe 310 can be independently arranged, that is, a smoke outlet 302 and a smoke inlet 301 are arranged on each smoke exhaust branch pipe 310, and independent smoke exhaust channels 303 are formed to exhaust smoke separately. This arrangement makes it convenient for operators to quickly check the faulty battery cell 410 according to the smoke outlet 302 where smoke appears.

[0058] Alternatively, the smoke exhaust plate 300 further includes a smoke exhaust air collecting duct 320 , which is fitted on the base plate 100 and provided with a smoke outlet 302 . The smoke exhaust air collecting duct 320 is connected to each smoke exhaust branch duct 310 , and together form a smoke exhaust channel 303 .

[0059] When the battery cell 410 has thermal runaway, the smoke generated by the smoke outlet 412 can flow from the smoke inlet 301 to each smoke exhaust branch pipe 310, further converge to the smoke exhaust gas collecting pipe 320, and be led out from the smoke outlet 302. Compared with each smoke exhaust branch pipe 310 having a separate smoke outlet 302 for smoke exhaust, it is preferred that each smoke exhaust gas collecting pipe 320 is connected through the smoke exhaust gas collecting pipe 320, and only the smoke outlet 302 is set on the smoke exhaust gas collecting pipe 320, so as to unify the smoke exhaust and simplify the structure.

[0060] Furthermore, to ensure the directional smoke exhaust effect, an exhaust fan can be provided at the smoke outlet 302 or the smoke exhaust gas collecting duct 320 for drainage. It should be noted that, in actual situations, each smoke exhaust gas collecting duct 320 in a battery cluster (corresponding to multiple battery modules, one or more battery modules corresponding to one liquid cooling plate assembly) is usually connected through a main smoke exhaust duct for smoke exhaust, and one or more exhaust fans are provided at the main smoke exhaust duct for convenient layout.

[0061] In addition, when the battery cell 410 has a valve spray, the electrolyte will flow into the smoke exhaust branch pipe 310, further converge into the smoke exhaust gas collecting pipe 320, and flow out from the smoke outlet 302. Therefore, in order to ensure safety, an electrolyte neutralizer can be set in the smoke exhaust channel 303 to neutralize the electrolyte. Specifically, the solid electrolyte neutralizer can be wrapped by a mesh structure and set at the smoke inlet 301. It can absorb a certain amount of electrolyte without affecting the smoke penetration, and is easy to replace.

[0062] The battery cells 410 are usually arranged in a regular matrix, and correspondingly, the smoke exhaust branch pipes 310 are arranged at equal intervals and in parallel; along the extension direction of the smoke exhaust branch pipes 310, the smoke exhaust surface of each smoke exhaust branch pipe 310 is evenly spaced with multiple smoke inlets 301, and the smoke inlets 301 are arranged in a one-to-one correspondence with the smoke outlets 412 of each battery cell 410. Fig. 9 The regular matrix arrangement of the smoke inlets 301 not only matches the matrix arrangement of the battery cells 410 in actual production and life, but also facilitates the production and processing of the liquid cooling plate assembly.

[0063] Combination Figure 2 In a specific embodiment disclosed in the present utility model, the liquid cooling plate 200 includes a plurality of liquid cooling branch pipes 210, the liquid cooling branch pipes 210 are arranged on the substrate 100, and the surface on the side facing away from the substrate 100 is a liquid cooling surface, the liquid cooling branch pipes 210 and the smoke exhaust branch pipes 310 are arranged alternately, while ensuring a uniform cooling effect on the battery module, the positions of the smoke outlets 412 can be uniformly cooled, thereby improving safety performance, and optimizing the cooling effect of the positions of the smoke exhaust branch pipes 310 on the battery module.

[0064] Among them, combined Fig.10 , each liquid cooling branch pipe 210 is provided with a liquid inlet 201 and a liquid outlet 202, and forms a mutually independent liquid cooling channel 203; or, combined with Figure 2 The liquid cooling plate 200 further includes a liquid cooling main pipeline 220, which is attached to the base plate 100 and is provided with a liquid inlet 201 and a liquid outlet 202. The liquid cooling main pipeline 220 is connected with each liquid cooling branch pipeline 210, and forms a liquid cooling channel 203 for unidirectional flow of the cooling liquid. Compared with each liquid cooling branch pipeline 210 having a separate liquid inlet 201 and a liquid outlet 202 for the cooling liquid to enter and exit, this structure simplifies the cooling liquid supply structure.

[0065] The liquid cooling branch pipe 210 and the smoke exhaust branch pipe 310 are arranged in parallel and close to each other. Preferably, a heat conductive material is filled between the liquid cooling branch pipe 210 and the smoke exhaust branch pipe 310 to reduce the thermal resistance between the liquid cooling plate 200 and the smoke exhaust plate 300 while achieving the connection between the two, thereby ensuring the heat dissipation effect at the battery module corresponding to the smoke exhaust plate 300.

[0066] Furthermore, the liquid cooling branch pipe 210 and the smoke exhaust branch pipe 310 share the same side wall, and the base plate 100, the liquid cooling plate 200 and the smoke exhaust plate 300 are an integrated structure, which is named a combined plate. The combined plate includes a bottom plate, a cover plate and a partition plate, the partition plate is arranged on the bottom plate, and separates and forms the above-mentioned liquid cooling channel 203 and the smoke exhaust channel 303, the cover plate is opposite to the bottom plate and connected to the partition plate, and the surface of the cover plate facing away from the bottom plate serves as the above-mentioned liquid cooling surface and smoke exhaust surface, and is provided with a smoke inlet 301 connected to the smoke exhaust channel 303.

[0067] The liquid inlet 201 or the liquid outlet 202 may be disposed at the same end or different ends of the substrate 100, and the smoke outlet 302 and the liquid inlet 201 or the liquid outlet 202 may be disposed at the same end of the substrate 100 (eg Figure 8 ) or different ends (such as Figure 1 The smoke outlet 302 may be directed upwards away from the substrate 100, or directed downwards toward the substrate 100 (the end of the smoke exhaust plate 300 provided with the smoke outlet 302 extends outside the substrate 100), or directed from one side away from the liquid inlet 201. The number of the smoke outlet 302 may be one or more according to actual conditions.

[0068] Combination Figure 5 During assembly, the smoke outlet 302 can be arranged outside the sealed cavity of the battery pack, and further lead out and collect outside the battery pack to facilitate the sealing setting of the battery pack; the smoke outlet 302 can also be located inside the sealed cavity of the battery pack, and when leading out from the battery pack, it can be sealed with a structure similar to the coolant entering and exiting the battery pack of the liquid cooling plate 200, which will not be repeated here.

[0069] In one embodiment, in combination Figure 3 The liquid cooling main pipeline 220 can be only one, and it is connected and arranged at the same end of each liquid cooling branch pipeline 210. Correspondingly, there is only one smoke exhaust gas collecting pipeline 320, and it is connected and arranged at the same end of each smoke exhaust branch pipeline 310, and the liquid cooling main pipeline 220 and the smoke exhaust gas collecting pipeline 320 are respectively arranged at both ends of the substrate 100.

[0070] Alternatively, there are multiple liquid cooling main pipes 220, which are connected between two adjacent liquid cooling plates 200, and form a serpentine liquid cooling channel 203 with the liquid cooling plates 200. The two liquid cooling main pipes 220 located at the ends are respectively provided with a liquid inlet 201 and a liquid outlet 202. Correspondingly, there are multiple smoke exhaust gas collecting pipes 320, which are connected between two adjacent smoke exhaust branch pipes 310, and form a serpentine smoke exhaust channel 303 with the smoke exhaust branch pipes 310.

[0071] In order to avoid cooling dead corners (positions where the coolant hardly flows) in the liquid cooling plate 200, the interior of the liquid cooling plate 200 is divided by partitions to form a liquid cooling channel 203 whose two ends are respectively connected to the liquid inlet 201 and the liquid outlet 202, and for the coolant to flow unidirectionally to various positions of the liquid cooling plate 200.

[0072] In one embodiment, the liquid cooling plate 200 and the smoke exhaust plate 300 are fixed on the substrate 100. The smoke exhaust plate 300 and the liquid cooling plate 200 and the substrate 100 can be independent individuals or one of them can be integrated with the substrate 100, and the smoke exhaust plate 300, the liquid cooling plate 200, and the substrate 100 are finally welded together to ensure the structural strength of the entire liquid cooling plate assembly. The liquid cooling plate 200 and the smoke exhaust plate 300 are complementary in structure, and the structural junction is fully welded or potted to ensure the sealing of the large surface of the entire liquid cooling plate assembly.

[0073] Preferably, the smoke exhaust surface and the liquid cooling surface are in the same plane, so that the smoke exhaust plate 300 can also directly contact the component to be cooled, thereby supporting the component to be cooled, and the smoke exhaust plate 300 is preferably made of a metal material with good thermal conductivity to ensure the heat dissipation performance of the liquid cooling plate assembly to the component to be cooled.

[0074] Combination Fig. 9 The energy storage battery device disclosed in the utility model includes an energy storage component 400 and the above-mentioned liquid cooling plate assembly. The energy storage component 400 is arranged on the liquid cooling plate assembly and has a smoke outlet 412, and the smoke outlet 412 is embedded in the smoke inlet 301. The liquid cooling plate 200 can cool the energy storage component 400, and the smoke exhaust plate 300 can exhaust the smoke generated by the smoke outlet 412.

[0075] Since the liquid cooling plate assembly is provided, the above-mentioned structure and beneficial effects are also provided. Other structures may refer to the prior art and will not be described in detail here.

[0076] In some embodiments, in combination Fig.11 The energy storage battery device further includes a shell 420, which together with the liquid cooling plate assembly encloses an installation chamber, and the energy storage component 400 is disposed in the installation chamber.

[0077] In order to avoid smoke leakage, a seal 304 is provided between each smoke inlet 301 and the energy storage component 400. The seal 304 may be a sealing gasket, and is pressed between the energy storage component 400 and the smoke exhaust plate 300. The size of the inner circle of the sealing gasket is larger than the size of the smoke inlet 301, and the sealing is achieved by the compression deformation of the sealing gasket or by potting to ensure that a sealing structure is formed around the smoke outlet 412.

[0078] The seal 304 and the smoke exhaust plate 300 may be a split structure, or may be directly disposed on the smoke exhaust plate 300 by vulcanization molding. When the seal 304 is a split structure, corresponding positioning and mounting grooves may be disposed on the smoke exhaust surface for positioning and embedding the seal 304, and correspondingly, each smoke inlet 301 is disposed in each positioning and mounting groove one by one.

[0079] When the energy storage component 400 is a battery module of a square shell battery cell 410, such as Figure 4 As shown, the smoke outlet 412 of the square shell battery cell 410 is located at the bottom of the battery cell 410, and the smoke outlet 412 is located at the central symmetrical position of the battery cell 410, and the pole 411 is located at the top of the battery cell 410. The battery module is placed on the liquid cooling surface, wherein the size of the smoke inlet 301 is larger than the smoke outlet 412, and the number and array of the smoke inlet 301 are the same as the number and array of the battery cells 410 of the battery module, so as to ensure that when the battery module is placed on the liquid cooling plate assembly, the smoke outlet 412 of each square shell battery cell 410 is directly opposite to each smoke inlet 301 of the smoke exhaust plate 300, and the smoke is collected at the end of the substrate 100 to the smoke exhaust gas collection pipe 320, so as to realize the directional exhaust of the smoke, and at the same time, the smoke exhaust channel 303 can be used as a flow channel for the electrolyte when the battery cell 410 sprays the valve.

[0080] Since the smoke exhaust plate 300 is completely embedded in the liquid cooling plate 200, and the smoke outlet 412 is located at the bottom of the battery cell 410, the smoke exhaust plate 300 does not occupy the extra height dimension inside the battery pack, so that the energy density of the battery pack is not affected. The smoke exhaust plate 300 is located at the bottom instead of the pole side of the battery cell 410, which does not affect the voltage connection of the top battery cell group and the arrangement of the battery cell collection components. When the battery cell 410 sprays a valve, the battery cell collection components at the top will not be immediately damaged and fail because it sprays a valve downward, so that sampling can continue, which is convenient for continuing to monitor the working status of the battery cell 410.

[0081] The above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. The specific technical means in some embodiments can be combined in part or in whole into another embodiment without being explicitly excluded by another embodiment. Therefore, the utility model will not be limited to the embodiments shown in this article, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A liquid cooling plate assembly, characterized in that: include: substrate(100); A liquid cooling plate (200) is arranged on the substrate (100) and has a surface facing away from the substrate (100) as a liquid cooling surface, wherein the liquid cooling plate (200) is formed with a liquid cooling channel (203) for the flow of cooling liquid; A smoke exhaust plate (300) is arranged on the substrate (100) in a manner such that a surface on the side facing away from the substrate (100) is a smoke exhaust surface, a smoke inlet (301) is arranged on the smoke exhaust surface, a smoke outlet (302) is arranged on the smoke exhaust plate (300), and the smoke inlet (301) and the smoke outlet (302) are connected to form a smoke exhaust channel (303).

2. The liquid cooling plate assembly according to claim 1, characterized in that: The smoke exhaust plate (300) comprises a plurality of smoke exhaust branch pipes (310) which are arranged on the base plate (100), the surface of the smoke exhaust branch pipes (310) facing away from the base plate (100) being the smoke exhaust surface, the plurality of smoke exhaust branch pipes (310) are arranged at intervals, and the liquid cooling plate (200) is arranged between two adjacent smoke exhaust branch pipes (310).

3. The liquid cooling plate assembly according to claim 2, characterized in that: Each of the smoke exhaust branch pipes (310) is provided with a smoke outlet (302), and mutually independent smoke exhaust channels (303) are formed; or, The smoke exhaust plate (300) further comprises a smoke exhaust gas collecting duct (320), the smoke exhaust gas collecting duct (320) being arranged on the base plate (100) and provided with the smoke outlet (302), the smoke exhaust gas collecting duct (320) being connected with each of the smoke exhaust branch ducts (310) and together forming the smoke exhaust channel (303).

4. The liquid cooling plate assembly according to claim 2, wherein: The liquid cooling plate (200) comprises a plurality of liquid cooling branch pipes (210), the liquid cooling branch pipes (210) being arranged on the base plate (100) in a fitted manner, and the surface on the side facing away from the base plate (100) being the liquid cooling surface, and the liquid cooling branch pipes (210) and the smoke exhaust branch pipes (310) being arranged in a staggered manner.

5. The liquid cooling plate assembly according to claim 4, characterized in that: Each of the liquid cooling branch pipes (210) is provided with a liquid inlet (201) and a liquid outlet (202), and forms mutually independent liquid cooling channels (203); or, The liquid cooling plate (200) further comprises a liquid cooling main pipeline (220), the liquid cooling main pipeline (220) being arranged on the base plate (100) and being provided with a liquid inlet (201) and a liquid outlet (202), the liquid cooling main pipeline (220) being in communication with each of the liquid cooling branch pipelines (210), and together forming the liquid cooling channel (203).

6. The liquid cooling plate assembly according to claim 5, characterized in that: The smoke outlet (302) and the liquid inlet (201) or the liquid outlet (202) are located at the same end or different ends of the substrate (100).

7. The liquid cooling plate assembly according to claim 4, wherein: The liquid cooling branch pipe (210) and the smoke exhaust branch pipe (310) are arranged in close contact with each other; or, A heat-conducting material is filled between the liquid-cooling branch pipe (210) and the smoke exhaust branch pipe (310); or, The liquid cooling branch pipe (210) and the smoke exhaust branch pipe (310) share the same side wall.

8. The liquid cooling plate assembly according to any one of claims 1 to 7, characterized in that: The smoke exhaust surface and the liquid cooling surface are in the same plane.

9. The liquid cooling plate assembly according to any one of claims 1 to 7, characterized in that: The base plate (100), the liquid cooling plate (200) and the smoke exhaust plate (300) are independent of each other; or, At least one of the liquid cooling plate (200) and the smoke exhaust plate (300) and the base plate (100) are an integrated structure.

10. An energy storage battery device, characterized in that: It comprises an energy storage component (400) and a liquid cooling plate assembly according to any one of claims 1 to 9, wherein the energy storage component (400) is arranged on the liquid cooling plate assembly and has a smoke outlet (412), and the smoke outlet (412) is embedded in the smoke inlet (301).

11. The energy storage battery device according to claim 10, characterized in that: It also comprises a shell (420), wherein the shell (420) and the liquid cooling plate assembly together enclose an installation chamber, and the energy storage component (400) is arranged in the installation chamber.

12. The energy storage battery device according to claim 10, characterized in that: A sealing member (304) is provided between the smoke inlet (301) and the energy storage component (400).

13. The energy storage battery device according to claim 12, characterized in that: The liquid cooling surface is provided with a positioning installation groove for embedding the sealing member (304), and each of the smoke inlets (301) is arranged in the positioning installation groove in a one-to-one correspondence.

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