Liquid cooling plate structure, battery pack and vehicle

Abstract

The utility model provides a kind of liquid cooling plate structure, battery pack and vehicle, it is related to battery technical field, liquid cooling plate structure includes liquid cooling plate main body and multiple supports, the liquid cooling plate main body includes first liquid cooling plate and second liquid cooling plate, the first liquid cooling plate with the second liquid cooling plate is configured integrated structure;The second liquid cooling plate includes liquid cooling plate body and is sequentially communicated with the liquid inlet structure, cooling flow channel and liquid outlet structure being arranged on the liquid cooling plate body, the liquid inlet structure is used to connect the water outlet of the battery cooling module of vehicle, the liquid outlet structure is used to connect the water return of the battery cooling module;The upper portion of the first liquid cooling plate is used to install battery module;Multiple supports are spaced distribution and respectively with first liquid cooling plate configured integrated structure, support is used to be fixedly connected with battery module.The utility model not only reduces the manufacturing difficulty and cost of liquid cooling plate structure, but also can improve the structural stability and reliability of liquid cooling plate structure.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and more specifically, to a liquid cooling plate structure, a battery pack, and a vehicle. Background Technology

[0002] With the rapid development of vehicle technologies such as electric vehicles and hybrid vehicles, thermal management technology for vehicle power battery systems is a core element in improving battery safety, cycle life, and energy density. Power battery systems generate significant heat during high-power output, fast charging, or high-load operation. This heat is primarily dissipated through the liquid cooling plate structure of the water-cooling system, which makes thermal contact with the battery modules to achieve liquid cooling of the battery modules.

[0003] In related technologies, liquid cooling plate structures mainly include upper liquid cooling plates, lower liquid cooling plates, and brackets for fixing battery modules. However, these components need to be processed separately and then assembled. For example, the bracket is fixed to the upper part of the upper liquid cooling plate by welding, and the lower liquid cooling plate is connected to the edge of the upper liquid cooling plate by welding, which increases the manufacturing difficulty and cost of the liquid cooling plate structure. Utility Model Content

[0004] The problem this invention addresses is how to reduce the manufacturing difficulty and cost of liquid cooling plate structures.

[0005] To address the aforementioned problems, this utility model provides a liquid cooling plate structure, a battery pack, and a vehicle.

[0006] In a first aspect, this utility model provides a liquid-cooled plate structure, comprising:

[0007] The liquid cooling plate body includes a first liquid cooling plate and a second liquid cooling plate, which are constructed as an integral structure. The second liquid cooling plate includes a liquid cooling plate body and a liquid inlet structure, a cooling channel, and a liquid outlet structure disposed on the liquid cooling plate body and connected in sequence. The liquid inlet structure is used to connect to the outlet of the vehicle's battery cooling module, and the liquid outlet structure is used to connect to the return port of the battery cooling module. The upper part of the first liquid cooling plate is used to install the battery module.

[0008] Multiple brackets are spaced apart and each bracket is integrated with the first liquid cooling plate to form an integral structure. The brackets are used to fix and connect to the battery module.

[0009] Optionally, the liquid cooling plate body further includes a bottom protective plate, the cooling channel is located on the side of the liquid cooling plate body away from the first liquid cooling plate, the bottom protective plate is fixedly connected to the second liquid cooling plate, and the bottom protective plate and the cooling channel together form a cooling cavity.

[0010] Optionally, the cooling channel includes an inlet channel, an outlet channel, and multiple main channels. One end of the inlet channel is connected to the inlet structure, the inlets of the multiple main channels are respectively connected to the other end of the inlet channel, the outlets of the multiple main channels are respectively connected to one end of the outlet channel, and the other end of the outlet channel is connected to the outlet structure. The bottom guard plate and the inlet channel together form an inlet cavity, and the bottom guard plate and the outlet channel together form an outlet cavity.

[0011] Optionally, the shape of the bottom guard plate matches the outer contour of the cooling channel.

[0012] Optionally, the bottom protective plate and the second liquid cooling plate are sealed together by welding.

[0013] Optionally, the liquid inlet structure includes a liquid inlet and a liquid inlet nozzle, the liquid inlet being connected to the cooling channel, and the liquid inlet nozzle being sealed to the liquid inlet;

[0014] And / or, the liquid outlet structure includes a liquid outlet and a liquid outlet nozzle, the liquid outlet being connected to the cooling channel, and the liquid outlet nozzle being sealed to the liquid outlet.

[0015] Optionally, the second liquid cooling plate further includes a plurality of reinforcing structures, which are spaced apart on the liquid cooling plate body along the outer edge of the cooling channel.

[0016] Optionally, the bracket is provided with a threaded hole for connecting with the positioning pin of the battery module.

[0017] Secondly, this utility model provides a battery pack, including the liquid cooling plate structure described above.

[0018] Thirdly, this utility model provides a vehicle that includes the liquid cooling plate structure described above, or includes the battery pack described above.

[0019] The beneficial effects of this utility model's liquid cooling plate structure, battery pack, and vehicle are:

[0020] The main body of the liquid cooling plate includes a first liquid cooling plate and a second liquid cooling plate. The first liquid cooling plate can be placed on the second liquid cooling plate, and the two can be constructed into an integrated structure. The bracket for connecting the battery module can also be constructed into an integrated structure with the first liquid cooling plate. The battery module can be fixedly installed on the upper part of the liquid cooling plate body through the bracket. Thus, the liquid cooling plate structure retains the traditional water cooling function while also having the ability to support the battery module. This reduces the processing and assembly steps of the liquid cooling plate structure's components, thereby not only reducing the manufacturing difficulty and cost of the liquid cooling plate structure, but also improving the structural stability and reliability of the liquid cooling plate structure.

[0021] A battery module can be installed on the upper part of the first liquid cooling plate, and a bracket can be fixedly connected to the battery module, thereby enabling the battery module to be fixedly installed on the liquid cooling plate structure. The battery module can be cooled in the following way: for example, the vehicle's battery cooling module can provide a temperature-controlled medium that enters from the inlet structure of the second liquid cooling plate, flows within the cooling channels, and cools the battery module through heat exchange. The temperature-controlled medium that absorbs heat from the battery module can flow out from the outlet structure and return to the battery cooling module, where it is cooled again and output to the second liquid cooling plate. This continuous cooling of the battery module is achieved through the circulation of the temperature-controlled medium within the second liquid cooling plate. Attached Figure Description

[0022] Figure 1 This is one of the structural schematic diagrams of the liquid cooling plate structure in the embodiments of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the second liquid cooling plate in an embodiment of this utility model;

[0024] Figure 3 This is a partial structural schematic diagram of the liquid cooling plate body in an embodiment of this utility model;

[0025] Figure 4 This is the second structural schematic diagram of the liquid cooling plate structure in the embodiments of this utility model;

[0026] Figure 5 for Figure 4 A magnified structural diagram of point A in the middle.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Bracket; 11-Threaded hole; 2-Liquid cooling plate body; 21-First liquid cooling plate; 22-Second liquid cooling plate; 221-Liquid cooling plate body; 222-Liquid inlet structure; 2221-Liquid inlet; 2222-Liquid inlet nozzle; 223-Cooling channel; 2231-Liquid inlet channel; 2232-Liquid outlet channel; 2233-Main channel; 224-Liquid outlet structure; 2241-Liquid outlet; 2242-Liquid outlet nozzle; 225-Reinforcing structure; 23-Bottom guard plate. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0030] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0031] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0032] To address the problems existing in the aforementioned related technologies, this utility model provides a liquid cooling plate structure, a battery pack, and a vehicle.

[0033] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a liquid-cooled plate structure, comprising:

[0034] The liquid cooling plate body 2 includes a first liquid cooling plate 21 and a second liquid cooling plate 22, which are constructed as an integral structure. The second liquid cooling plate 22 includes a liquid cooling plate body 221 and a liquid inlet structure 222, a cooling channel 223, and a liquid outlet structure 224 disposed on the liquid cooling plate body 221 and connected in sequence. The liquid inlet structure 222 is used to connect to the outlet of the vehicle's battery cooling module, and the liquid outlet structure 224 is used to connect to the return outlet of the battery cooling module. The upper part of the first liquid cooling plate 21 is used to install the battery module.

[0035] Multiple brackets 1 are spaced apart and each bracket is integrated with the first liquid cooling plate 21 to form an integral structure. The brackets 1 are used to fix and connect to the battery module.

[0036] Specifically, the first liquid cooling plate 21 is disposed on the upper part of the second liquid cooling plate 22, and the two can be constructed into an integral structure by die casting process.

[0037] The first liquid cooling plate 21 can be a plate-shaped structure, and multiple supports 1 can be distributed at intervals along the extension direction of the first liquid cooling plate 21. The supports 1 are used to fix the battery module to the upper part of the first liquid cooling plate 21 so as to support the battery module through the first liquid cooling plate 21. The multiple supports 1 and the first liquid cooling plate 21 can be constructed into an integral structure by die casting process.

[0038] One bracket 1 can be fixedly connected to a battery module, or at least one battery module can be disposed between two adjacent brackets 1, so that at least one battery module can be fixed by the two adjacent brackets 1.

[0039] The second liquid cooling plate 22 can adopt the following structure: the liquid cooling plate body 221, the liquid inlet structure 222, the cooling channel 223 and the liquid outlet structure 224 can be constructed into an integrated structure by die casting process.

[0040] The liquid inlet structure 222 can serve as the liquid inlet end of the second liquid cooling plate 22, and the liquid outlet structure 224 can serve as the liquid outlet end of the second liquid cooling plate 22. This allows the temperature control medium output from the outlet of the battery cooling module to enter through the liquid inlet structure 222, circulate within the cooling channel 223, and exchange heat with the battery module to cool it down. The temperature control medium that has absorbed heat can be output from the liquid outlet structure 224 and flow back into the battery cooling module through the return port.

[0041] The temperature control medium can be a special battery coolant, such as an aqueous solution of ethylene glycol, or a mixture of deionized water and ethylene glycol. There are no specific limitations here. Any temperature control medium that can cool the battery module by means of heat conduction is suitable for this technical solution.

[0042] In this embodiment, the liquid cooling plate body 2 mainly includes a first liquid cooling plate 21 and a second liquid cooling plate 22. The first liquid cooling plate 21 can be placed on the second liquid cooling plate 22, and the two can be constructed into an integrated structure. The bracket 1 for connecting the battery module can be constructed into an integrated structure with the first liquid cooling plate 21. The battery module can be fixedly installed on the upper part of the liquid cooling plate body 2 through the bracket 1. Thus, the liquid cooling plate structure retains the traditional water cooling function while also having the ability to support the battery module. This reduces the processing and assembly steps of the liquid cooling plate structure's components, thereby not only reducing the manufacturing difficulty and cost of the liquid cooling plate structure, but also improving the structural stability and reliability of the liquid cooling plate structure.

[0043] A battery module can be installed on the upper part of the first liquid cooling plate 21, and the bracket 1 can be fixedly connected to the battery module, thereby enabling the battery module to be fixedly installed on the liquid cooling plate structure. The battery module can be cooled in the following way: for example, the vehicle's battery cooling module can provide a temperature control medium, which enters from the liquid inlet structure 222 of the second liquid cooling plate 22 and flows in the cooling channel 223 to cool the battery module through heat exchange. The temperature control medium that absorbs the heat of the battery module can flow out from the liquid outlet structure 224 and flow back into the battery cooling module, so that the temperature control medium that absorbs the heat can be cooled by the battery cooling module and output to the second liquid cooling plate 22 again, so that the temperature control medium circulates in the second liquid cooling plate 22 to achieve continuous cooling of the battery module.

[0044] Optionally, combined Figures 1 to 3 As shown, the liquid cooling plate body 2 also includes a bottom protective plate 23. The cooling channel 223 is located on the side of the liquid cooling plate body 221 away from the first liquid cooling plate 21. The bottom protective plate 23 is fixedly connected to the second liquid cooling plate 22, and the bottom protective plate 23 and the cooling channel 223 together form a cooling cavity.

[0045] Specifically, the cooling channel 223 is located on the side of the liquid cooling plate body 221 away from the first liquid cooling plate 21. This can be understood as the first liquid cooling plate 21 being located at the upper part of the liquid cooling plate body 221, and the cooling channel 223 being located at the bottom of the liquid cooling plate body 221.

[0046] The bottom protective plate 23 is fixedly connected to the second liquid cooling plate 22 so that the bottom protective plate 23, the second liquid cooling plate 22 and the first liquid cooling plate 21 can be constructed as an integral structure.

[0047] Since the bottom of the liquid cooling plate body 221 is provided with a cooling channel 223, after the bottom guard plate 23 is fixedly connected to the second liquid cooling plate 22, the bottom guard plate 23 and the cooling channel 223 can form a cooling cavity. The liquid inlet structure 222 and the liquid outlet structure 224 can be connected to the cooling cavity respectively, so that the temperature control medium can circulate in the second liquid cooling plate 22.

[0048] In this optional embodiment, since the battery module is mounted on the first liquid cooling plate 21, and the cooling channel 223 is located on the side of the liquid cooling plate body 221 away from the first liquid cooling plate 21, the battery module can be supported by the first liquid cooling plate 21 of the liquid cooling plate body 2, reducing the pressure of the battery module on the cooling channel 223 located at the bottom of the liquid cooling plate body 221, avoiding deformation of the cooling channel 223, and ensuring the smooth circulation of the temperature control medium in the cooling cavity formed by the cooling channel 223 of the second liquid cooling plate 22 and the bottom protective plate 23.

[0049] Since the bottom protective plate 23 is fixedly connected to the second liquid cooling plate 22, the bottom protective plate 23 can not only serve as a cover plate to form a cooling cavity with the cooling channel 223, but also protect the second liquid cooling plate 22.

[0050] Optionally, combined Figure 2 As shown, the cooling channel 223 includes an inlet channel 2231, an outlet channel 2232, and multiple main channels 2233. One end of the inlet channel 2231 is connected to the inlet structure 222, the inlets of the multiple main channels 2233 are respectively connected to the other end of the inlet channel 2231, the outlets of the multiple main channels 2233 are respectively connected to one end of the outlet channel 2232, and the other end of the outlet channel 2232 is connected to the outlet structure 224. The bottom guard plate 23 and the inlet channel 2231 enclose an inlet cavity, and the bottom guard plate 23 and the outlet channel 2232 enclose an outlet cavity.

[0051] Specifically, the multiple main channels 2233 of the second liquid cooling plate 22 can be distributed at intervals along the extension direction perpendicular to the liquid cooling plate body 221. In other words, the interval arrangement direction of the multiple main channels 2233 is perpendicular to the extension direction of the liquid cooling plate body 221.

[0052] Multiple main channels 2233 each have an inlet and an outlet. The liquid inlet channel 2231 can connect the liquid inlet structure 222 with the inlets of the multiple main channels 2233. The liquid inlet channel 2231 is a diversion structure, so the liquid inlet structure 222 can be divergent. The liquid outlet channel 2232 can connect the liquid outlet structure 224 with the outlets of the multiple main channels 2233. The liquid outlet structure 224 is a confluence structure, so the liquid outlet structure 224 can be confluenced.

[0053] Figure 2 In the middle, the number of main channels 2233 can be two, then the inlet channel 2231 and the outlet channel 2232 can be Y-shaped structures.

[0054] The cooling chamber may include an inlet chamber, a flow channel chamber, and an outlet chamber. After the bottom guard plate 23 is sealed and connected to the cooling flow channel 223 of the second liquid cooling plate 22, the bottom guard plate 23 and the inlet flow channel 2231 of the second liquid cooling plate 22 form an inlet chamber, the bottom guard plate 23 and the main flow channel 2233 form a flow channel chamber, and the bottom guard plate 23 and the outlet flow channel 2232 form an outlet chamber.

[0055] In this optional embodiment, the temperature control medium can adopt the following flow path. For example, the low-temperature temperature control medium output from the outlet of the battery cooling module enters the inlet channel 2231 through the inlet structure 222 and is diverted to enter the inlets of multiple main channels 2233 respectively. The temperature control medium can circulate in each main channel 2233 to cool the battery module on the upper part of the first liquid cooling plate 21 through heat exchange. The temperature control medium that absorbs heat flows out from the outlet of each main channel 2233 and converges at the outlet channel 2232. The converged temperature control medium flows out from the outlet structure 224 and flows back to the battery cooling module from the outlet to cool the temperature control medium that absorbs heat through the battery cooling module. The cooled temperature control medium is then output to the second liquid cooling plate 22 again. This process is continuously circulated to achieve continuous cooling of the battery module.

[0056] Since the inlets of the multiple main channels 2233 are respectively connected to the other end of the liquid inlet channel 2231, and the outlets of the multiple main channels 2233 are respectively connected to one end of the liquid outlet channel 2232, the temperature control medium entering from the liquid inlet channel 2231 is diverted into each main channel 2233. By increasing the number of main channels 2233, the uniformity of the flow of the temperature control medium in the cooling channel 223 is increased accordingly, thereby improving the cooling effect on the battery module.

[0057] Optionally, combined Figure 3 As shown, the shape of the bottom guard plate 23 matches the outer contour of the cooling channel 223.

[0058] Specifically, the bottom guard plate 23 can adopt a straight plate structure with a thickness of 2mm-5mm, and the bottom guard plate 23 can be designed with the shape of the cooling channel 223 and formed by die casting process.

[0059] Compared to related technologies where the area of ​​the bottom protective plate matches the area of ​​the lower liquid cooling plate, thus increasing the cost of the liquid cooling plate structure, in this optional embodiment, since the shape of the bottom protective plate 23 matches the outer contour of the cooling channel 223, it can be ensured that the bottom protective plate 23 effectively reduces the material cost of the liquid cooling plate body 2 while having the function of sealing the cooling channel 223 of the second liquid cooling plate 22 and protecting the second liquid cooling plate 22.

[0060] Optionally, the bottom protective plate 23 and the second liquid cooling plate 22 are sealed together by welding.

[0061] Specifically, the bottom protective plate 23 and the second liquid cooling plate 22 can be sealed to the outer edge of the cooling channel 223 of the second liquid cooling plate 22 or the area of ​​the liquid cooling plate body 221 near the cooling channel 223 by welding, for example by friction stir welding.

[0062] In this optional embodiment, since the bottom protective plate 23 and the second liquid cooling plate 22 are sealed together by welding, the tightness and stability of the connection between the two can be improved.

[0063] Optionally, combined Figure 1 and Figure 2 As shown, the liquid inlet structure 222 includes a liquid inlet 2221 and a liquid inlet nozzle 2222. The liquid inlet 2221 is connected to the cooling channel 223, and the liquid inlet nozzle 2222 is sealed to the liquid inlet 2221.

[0064] And / or, the liquid outlet structure 224 includes a liquid outlet 2241 and a liquid outlet nozzle 2242, the liquid outlet 2241 is connected to the cooling channel 223, and the liquid outlet nozzle 2242 is sealed to the liquid outlet 2241.

[0065] Specifically, an inlet 2221 and an outlet 2241 can be opened at both ends of the liquid cooling plate body 221, and the inlet 2221 and the outlet 2241 protrude from the upper surface of the liquid cooling plate body 221.

[0066] The inlet nozzle 2222 and the inlet port 2221 can be sealed together by means of thread or sleeve connection. Similarly, the outlet nozzle 2242 and the outlet port 2241 can be sealed together by means of thread or sleeve connection.

[0067] In this optional embodiment, one end of the inlet nozzle 2222, for example, the upper end, can be connected to the outlet of the battery cooling module, and the other end of the inlet nozzle 2222 can be connected to the inlet channel 2231 of the second liquid cooling plate 22 through the inlet port 2221; the outlet channel 2232 of the second liquid cooling plate 22 can be connected to one end of the outlet nozzle 2242, for example, the bottom end, through the outlet port 2241, and the other end of the outlet nozzle 2242, for example, the top end, can be connected to the return port of the battery cooling module.

[0068] Since the liquid inlet 2221 and the liquid outlet 2241 protrude from the upper surface of the liquid cooling plate body 221, it is convenient to quickly seal and connect the liquid inlet 2222 with the liquid inlet 2221 and the liquid outlet 2242 with the liquid outlet 2241, and to facilitate the disassembly and maintenance of the liquid inlet 2222 with the liquid inlet 2221 and the liquid outlet 2242 with the liquid outlet 2241 in the later stage.

[0069] Optionally, combined Figure 2 and Figure 3 As shown, the second liquid cooling plate 22 also includes a plurality of reinforcing structures 225, which are distributed at intervals along the outer edge of the cooling channel 223 on the liquid cooling plate body 221.

[0070] Specifically, the reinforcing structure 225 can be made of reinforcing ribs. Multiple reinforcing structures 225 can be connected to the liquid cooling plate body 221 respectively, and are distributed around the outer edge of the entire cooling channel 223.

[0071] In addition, finite element simulation software can be used to determine the distribution of the reinforcing structure 225 on the liquid cooling plate body 221.

[0072] In this optional embodiment, a plurality of the reinforcing structures 225 are distributed at intervals along the outer edge of the cooling channel 223 on the liquid cooling plate body 221, thereby effectively strengthening the weak part at the junction of the cooling channel 223 and the liquid cooling plate body 221, thereby increasing the mechanical strength of the entire second liquid cooling plate 22 and reducing the probability of deformation of the second liquid cooling plate 22.

[0073] Optionally, combined Figure 5 As shown, the bracket 1 is provided with a threaded hole 11, which is used to connect with the positioning pin of the battery module.

[0074] Specifically, a threaded hole 11 can be provided in each bracket 1 for inserting a positioning pin of the battery module. The positioning pin can be a screw structure with external threads, so that the positioning pin can enter the threaded hole 11 in a spiral manner.

[0075] In this optional embodiment, when multiple battery modules are installed on the first liquid cooling plate 21, the positioning pins of the battery modules can be inserted into the threaded holes 11 of the bracket 1, which not only guides the battery modules during installation, but also enhances the connection stability between the battery modules and the first liquid cooling plate 21.

[0076] This utility model embodiment also provides a battery pack, including a battery module and a liquid cooling plate structure as described in the above embodiment.

[0077] Multiple battery modules can be installed on the first liquid cooling plate 21, and the positioning pins of the battery modules are connected to the threaded holes 11 of the bracket 1 on the first liquid cooling plate 21, which can improve the connection stability between the battery modules and the liquid cooling plate structure.

[0078] The beneficial effects of the battery pack in this embodiment compared to the prior art are the same as those of the liquid cooling plate structure described above, and will not be repeated here.

[0079] This utility model embodiment also provides a vehicle, including the liquid cooling plate structure as described in the above embodiment, or including the battery pack as described in the above embodiment.

[0080] The vehicle also includes a battery cooling module, which can be a conventional cooling module mounted on the vehicle frame. This cooling module may include an electric water pump, a plate heat exchanger, and a liquid storage tank. The liquid storage tank has an outlet and a return outlet. The electric water pump and the plate heat exchanger may be spaced between the liquid inlet structure 222 and the outlet of the liquid storage tank, or between the liquid outlet structure 224 and the return outlet of the liquid storage tank. The liquid storage tank is used to hold a temperature control medium. The electric water pump is used to circulate the temperature control medium between the liquid storage tank and the second liquid cooling plate. The plate heat exchanger is used to cool the temperature control medium.

[0081] Vehicles can be any of the following: pure electric vehicles (BEVs), hybrid electric vehicles (such as plug-in hybrid electric vehicles (PHEVs) or hybrid electric vehicles (HEVs), range-extended electric vehicles (REEVs), range-extended electric trucks / construction machinery, or new energy special vehicles (such as pure electric logistics vehicles, electric sanitation vehicles, or electric mining trucks).

[0082] The beneficial effects of the vehicle in this embodiment compared to the prior art are the same as those of the liquid cooling plate structure or battery pack described above, and will not be repeated here.

[0083] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A liquid-cooled plate structure, characterized in that, include: The liquid cooling plate body (2) includes a first liquid cooling plate (21) and a second liquid cooling plate (22). The first liquid cooling plate (21) and the second liquid cooling plate (22) are constructed as an integral structure. The second liquid cooling plate (22) includes a liquid cooling plate body (221) and a liquid inlet structure (222), a cooling channel (223), and a liquid outlet structure (224) disposed on the liquid cooling plate body (221) and connected in sequence. The liquid inlet structure (222) is used to connect to the outlet of the battery cooling module of the vehicle, and the liquid outlet structure (224) is used to connect to the return outlet of the battery cooling module. The upper part of the first liquid cooling plate (21) is used to install the battery module. Multiple brackets (1) are spaced apart and are respectively integrated with the first liquid cooling plate (21) to form an integral structure. The brackets (1) are used to fix and connect to the battery module.

2. The liquid-cooled plate structure according to claim 1, characterized in that, The liquid cooling plate body (2) also includes a bottom protective plate (23). The cooling channel (223) is located on the side of the liquid cooling plate body (221) away from the first liquid cooling plate (21). The bottom protective plate (23) is fixedly connected to the second liquid cooling plate (22), and the bottom protective plate (23) and the cooling channel (223) together form a cooling cavity.

3. The liquid-cooled plate structure according to claim 2, characterized in that, The cooling channel (223) includes an inlet channel (2231), an outlet channel (2232), and multiple main channels (2233). One end of the inlet channel (2231) is connected to the inlet structure (222), the inlets of the multiple main channels (2233) are respectively connected to the other end of the inlet channel (2231), the outlets of the multiple main channels (2233) are respectively connected to one end of the outlet channel (2232), and the other end of the outlet channel (2232) is connected to the outlet structure (224). The bottom guard plate (23) and the inlet channel (2231) together form an inlet cavity, and the bottom guard plate (23) and the outlet channel (2232) together form an outlet cavity.

4. The liquid-cooled plate structure according to claim 2, characterized in that, The shape of the bottom guard plate (23) matches the outer contour of the cooling channel (223).

5. The liquid-cooled plate structure according to claim 2, characterized in that, The bottom protective plate (23) and the second liquid cooling plate (22) are sealed together by welding.

6. The liquid-cooled plate structure according to claim 1, characterized in that, The liquid inlet structure (222) includes a liquid inlet (2221) and a liquid inlet nozzle (2222). The liquid inlet (2221) is connected to the cooling channel (223), and the liquid inlet nozzle (2222) is sealed to the liquid inlet (2221). And / or, the liquid outlet structure (224) includes a liquid outlet (2241) and a liquid outlet nozzle (2242), the liquid outlet (2241) is connected to the cooling channel (223), and the liquid outlet nozzle (2242) is sealed to the liquid outlet (2241).

7. The liquid-cooled plate structure according to claim 1, characterized in that, The second liquid cooling plate (22) also includes a plurality of reinforcing structures (225), which are spaced apart on the liquid cooling plate body (221) along the outer edge of the cooling channel (223).

8. The liquid-cooled plate structure according to claim 1, characterized in that, The bracket (1) is provided with a threaded hole (11), which is used to connect with the positioning pin of the battery module.

9. A battery pack, characterized in that, It includes a battery module and a liquid cooling plate structure as described in any one of claims 1 to 8.

10. A vehicle, characterized in that, It includes the liquid cooling plate structure as described in any one of claims 1 to 8, or the battery pack as described in claim 9.

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