Rapid temperature control liquid cooling plate module

Abstract

The present invention discloses a rapid temperature control liquid cooling plate module, and relates to the technical field of batteries, the liquid cooling plate module comprises a liquid cooling module and a cooling island, the liquid cooling module is internally provided with an upper layer flow channel and a lower layer flow channel, the two flow channels are stacked in the vertical direction and communicate with each other, the two flow channels extend in the length direction of the liquid cooling module, and a plurality of flow channels are arranged in parallel in the width direction; an input flow channel and an output flow channel are arranged in the cooling island, and the cooling island is connected with the end part of the liquid cooling module to form a liquid cooling loop; the input flow channel is communicated with one layer of flow channel, and the output flow channel is communicated with the other layer of flow channel, so that the heat transfer medium forms vertical circulation in the parallel flow channels in the liquid cooling module, the path length of the heat transfer medium is shortened, the flow resistance is low, and the flow efficiency and the heat exchange effect of the heat transfer medium are improved in a high-speed circulation manner; the liquid cooling module is simple in structure, has excellent temperature control performance, can adapt to battery packs of different sizes through a modular combination mode, and solves the problems that an existing liquid cooling plate is large in temperature difference, complex in structure and poor in adaptability.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and particularly to a fast temperature-controlled liquid cooling plate module. Background Art

[0002] In the context of the rapid development of current new energy vehicles and high-power electronic devices, the thermal management problems of power batteries and power electronic components have become increasingly prominent.

[0003] As a key heat dissipation component, the liquid cooling plate is widely used in the power battery packs of electric vehicles, energy storage battery packs of energy storage devices, etc. to achieve efficient heat conduction and dissipation. However, the existing liquid cooling plate technology still has many technical bottlenecks, which limit the temperature control performance of the liquid cooling plate in high-density and high-performance battery application scenarios.

[0004] First of all, traditional liquid cooling plates generally adopt a serial flow channel design, where the coolant flows through the front-row to the rear-row battery cells in sequence from the inlet. The flow path of the coolant through all the battery cells is relatively long, resulting in a gradual increase in the temperature of the coolant during the flow process, and poor cooling effect on the rear-row battery cells. This design not only increases the circulation distance and flow resistance of the coolant, but also causes a large temperature difference between the battery cells, usually more than 2°C, affecting the temperature uniformity effect of the battery cells, and further limiting the charge and discharge life and overall charge and discharge performance of the battery cells.

[0005] Secondly, most of the existing liquid cooling plates are of an integral structure, and their sizes and shapes need to be customized according to the specific requirements of different battery packs, lacking the flexibility of a modular structure. This non-modular structure not only increases the design and manufacturing costs, but also limits the universality and maintainability of the liquid cooling plate between different battery packs.

[0006] In addition, although some liquid cooling plates introduce a heat spreader structure and attempt to improve the uniform distribution of heat through phase change heat transfer and other means, there are still many limitations in actual applications due to problems such as complex structure, high manufacturing cost, and increased thickness.

[0007] For example, in the disclosed patent CN106659094B, the patent of "a liquid cooling plate" proposes a design of integrating a heat spreader in the liquid cooling plate to improve the heat conduction efficiency, but its structure is complex, the manufacturing cost is high, and the overall thickness increases, limiting its use in application scenarios with limited space.

[0008] In summary, it is found that the existing technology has at least the following technical problems:

[0009] The existing liquid cooling components have technical problems such as large temperature difference at both ends of the flow channel, low adaptability to the battery pack, and complex structure. Summary of the Invention

[0010] The object of the present invention is to provide a fast temperature control liquid cooling plate module to solve the technical problems existing in the existing liquid cooling components, such as large temperature difference at both ends of the flow channel, low adaptability to the battery pack, and complex structure.

[0011] The many technical effects that can be produced by the preferred technical solutions among the many technical solutions provided by the present invention are described in detail below.

[0012] To solve the above technical problems, the present invention provides the following technical solutions:

[0013] The present invention provides a fast temperature control liquid cooling plate module, including a liquid cooling module, wherein two layers of flow channels are provided in the liquid cooling module; the two layers of flow channels are stacked and vertically communicated in the vertical direction of the liquid cooling module, extend along the length direction of the liquid cooling module, and a plurality of flow channels are arranged in parallel in the width direction; and a cooling island, wherein an input flow channel and an output flow channel are provided in parallel in the cooling island; the cooling island is connected to the top surface of the end of the liquid cooling module; among the flow channels of the upper and lower two layers, a plurality of flow channels distributed in the same layer are in parallel communication with the input flow channel and the output flow channel; the input flow channel and the output flow channel are respectively connected to one of the two layers of flow channels, and are used to limit the input heat transfer medium to enter from the input flow channel, pass through one of the two layers of flow channels, then enter the other layer of the two layers of flow channels, and finally flow out through the output flow channel, so as to complete the vertical circulation of the heat transfer medium in the liquid cooling module.

[0014] In one embodiment, the two layers of flow channels are respectively a first flow channel and a second flow channel, the first flow channel is located above or below the second flow channel, the inlet of the first flow channel is communicated with the input flow channel, the outlet of the first flow channel is communicated with the inlet of the second flow channel, and the outlet of the second flow channel is communicated with the output flow channel.

[0015] In one embodiment, a single liquid cooling module and a single cooling island are combined to form a liquid cooling plate; the length of the cooling island matches the width of the liquid cooling module, and the input flow channel and the output flow channel are arranged along the length direction of the cooling island.

[0016] In one embodiment, a plurality of liquid cooling modules are provided, and the plurality of liquid cooling modules are spliced in parallel to form a liquid cooling combined module, and the liquid cooling combined module and a single cooling island are combined to form a liquid cooling plate; the length of the cooling island increases or decreases with the total width of the splicing quantity of the liquid cooling modules.

[0017] In one embodiment, the length of the cooling island matches the width of the liquid cooling combined module, and the input flow channel and the output flow channel are arranged along the length direction of the cooling island.

[0018] In one embodiment, tenon and mortise blocks are provided on the side surface in the length direction of the liquid cooling module; multiple liquid cooling modules are connected by mutual engagement of the tenon and mortise blocks to form the liquid cooling plate.

[0019] In one embodiment, the tenon and mortise block includes a base block, a tenon, and a mortise cavity; the tenon is arranged at a position on the side surface of the base block away from the liquid cooling module and protrudes from the base block in the vertical direction; the mortise cavity is arranged between the tenon and the side surface of the liquid cooling module and the base block; the tenon and the mortise cavity are mutually embraced in both the horizontal and vertical directions; multiple liquid cooling modules are spliced by mutual embrace of the tenons and mortise cavities of the tenon and mortise blocks.

[0020] In one embodiment, border blocks are welded and fixed on the four peripheries of the top surface of the liquid cooling plate; the cooling island is located outside the border blocks, the side surface of the cooling island is welded and fixed to the adjacent and opposite border blocks, and the bottom surface of the cooling island is welded and connected to the top surface of the liquid cooling plate; the inlets of the first flow channels and the outlets of the second flow channels on the liquid cooling module are respectively arranged on the top surfaces at positions corresponding to the input flow channels and the output flow channels of the cooling island.

[0021] In one embodiment, the liquid cooling plate is in contact with the bottom surface of the battery cell module to be installed, the liquid cooling plate bears the battery cell module, and the liquid cooling plate exchanges heat with the battery cell module for cooling or heating the battery cells of the battery cell module.

[0022] In one embodiment, a heat conducting pad is installed between the liquid cooling module and the battery cell module.

[0023] The beneficial effects of the present invention are as follows:

[0024] A fast temperature control liquid cooling plate module of the present invention includes: a liquid cooling module, in which two layers of flow channels are provided; the two layers of flow channels are stacked and vertically communicated in the vertical direction of the liquid cooling module, extend in the length direction of the liquid cooling module, and multiple flow channels are arranged in parallel in the width direction; and a cooling island, in which parallel input flow channels and output flow channels are provided; the cooling island is connected to the top surface of the end of the liquid cooling module; among the upper and lower two layers of flow channels, multiple flow channels distributed in the same layer are parallelly communicated with the input flow channels and the output flow channels.

[0025] Wherein, the input flow channel and the output flow channel are respectively connected to one of the two layers of flow channels, and are used to limit the heat transfer medium input to enter from the input flow channel, pass through one of the two layers of flow channels, then enter the other layer of the two layers of flow channels, and finally flow out through the output flow channel to complete the vertical circulation of the heat transfer medium in the liquid cooling module.

[0026] A fast temperature-controlled liquid cooling plate module proposed by the present invention significantly optimizes the flow path of the coolant inside the liquid cooling module by adopting a flow path structure with two layers connected up and down, multiple flow channels arranged in parallel, and in parallel with the input flow channel and the output flow channel, enabling a vertical circulation to form inside the liquid cooling module. This parallel flow channel structure can effectively shorten the total flow distance of the heat transfer medium in the cooling channel, reduce the flow resistance, increase the flow velocity, thereby improving the heat exchange efficiency and achieving the purpose of quickly controlling the temperature of the loaded battery cells by the liquid cooling plate.

[0027] Meanwhile, the arrangement of multiple parallel and in-parallel flow channels in the liquid cooling module reduces the number of battery cells passed by the heat transfer medium, with a short path, fast flow velocity, low temperature rise of the heat transfer medium, reduces the temperature difference between each battery cell, enabling a temperature equalization effect with a temperature difference less than 1.5 °C between the battery cells, achieving more uniform temperature control, avoiding local overheating, and improving the service life and charge-discharge stability of the battery cells.

[0028] In addition, the liquid cooling module of the present invention adopts a modular structural design. The liquid cooling module and the cooling island are combined for use by end connection, and can be freely assembled according to different battery pack sizes, enhancing the dimensional versatility and adaptability of the liquid cooling plate, and reducing the design and manufacturing costs.

[0029] Compared with the serial flow channel structure of traditional liquid cooling devices, the parallel flow channel and vertical circulation flow channel structure of the present invention effectively overcomes problems such as long flow channels, long coolant circulation paths, poor heat transfer effects, large flow channel temperature differences, complex structures, and poor adaptability, providing a more efficient and flexible liquid cooling heat transfer solution for the thermal management system of high-performance batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 is an isometric structural schematic diagram of the liquid cooling plate of the present invention;

[0032] Figure 2 is an assembled schematic diagram of the liquid cooling plate of the present invention with the cooling island removed;

[0033] Figure 3 is a cross-sectional view of the side view of the liquid cooling plate of the present invention;

[0034] Figure 4 is an isometric structural schematic diagram of the bottom surface of the cooling island of the present invention;

[0035] Figure 5It is a partial enlarged view of the side view of the liquid cooling plate of the present invention.

[0036] Among them, the reference numerals are as follows:

[0037] 1. Liquid cooling module; 11. Mortise and tenon block; 111. Base block; 112. Tenon; 113. Mortise cavity;

[0038] 2. Flow channel; 21. First flow channel; 22. Second flow channel;

[0039] 3. Cooling island;

[0040] 4. Input flow channel;

[0041] 5. Output flow channel;

[0042] 6. Liquid cooling plate; 61. Perimeter block; 62. Fixed block. Specific implementation mode

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0044] A fast temperature control liquid cooling plate module is provided in the specific implementation mode. The liquid cooling module of this liquid cooling module includes a liquid cooling module and a cooling island. There are two layers of flow channels in the liquid cooling module. The two flow channels are stacked and arranged vertically and communicate with each other. They extend along the length direction of the liquid cooling module, and multiple flow channels are arranged in parallel in the width direction; an input flow channel and an output flow channel are provided in the cooling island. The cooling island is connected to the end of the liquid cooling module to form a liquid cooling loop; the input flow channel is connected to one layer of the flow channel, and the output flow channel is connected to the other layer of the flow channel, so that the heat transfer medium forms a vertical circulation in the parallel flow channels in the liquid cooling module, shortening the path length of the heat transfer medium, having low flow resistance, and improving the flow efficiency and heat exchange effect of the heat transfer medium in a high-speed circulation manner; the liquid cooling module has a simple structure and excellent temperature control performance. Through the modular combination method, it can be adapted to battery packs of different sizes; effectively solves the technical problems of the existing liquid cooling components, such as large temperature difference at both ends of the flow channel, low adaptability to the battery pack, and complex structure.

[0045] The first embodiment of the fast temperature control liquid cooling plate module is as Figures 1 to 5 shown, including a liquid cooling module 1, and there are two layers of flow channels 2 in the liquid cooling module 1; the two layers of flow channels 2 are stacked and arranged vertically and communicate with each other in the liquid cooling module 1, extend along the length direction of the liquid cooling module 1, and multiple flow channels 2 are arranged in parallel in the width direction; the vertical circulation arrangement of the multiple flow channels 2 in this structure can effectively increase the fluid contact area, thereby improving the heat transfer efficiency of the liquid cooling module 1.

[0046] and a cooling island 3, in which a parallel input flow channel 4 and an output flow channel 5 are provided; the cooling island 3 is connected to the top surface of the end of the liquid cooling module 1; among the flow channels 2 in the upper and lower layers, multiple flow channels 2 distributed in the same layer are connected in parallel with the input flow channel 4 and the output flow channel 5.

[0047] Among them, the input flow channel 4 and the output flow channel 5 are respectively connected to one of the two layers of flow channels 2, which is used to restrict the input heat transfer medium to enter from the input flow channel 4, pass through one of the two layers of flow channels 2, then enter the other layer of the two layers of flow channels 2, and finally flow out through the output flow channel 5, completing the vertical circulation of the heat transfer medium in the liquid cooling module 1.

[0048] This circulation path can shorten the overall length of the flow channel 2, reduce the flow resistance, and reduce the heat distribution difference, improving the temperature control response speed and the temperature equalization effect.

[0049] Specifically, regarding the specific structural layout of the two layers of flow channels 2, the two layers of flow channels 2 are respectively a first flow channel 21 and a second flow channel 22. The first flow channel 21 is located above or below the second flow channel 22. The inlet of the first flow channel 21 is connected to the input flow channel 4, the outlet of the first flow channel 21 is connected to the inlet of the second flow channel 22, and the outlet of the second flow channel 22 is connected to the output flow channel 5.

[0050] During application, multiple first flow channels 21 are arranged in parallel on the same plane, and the input flow channel 4 is connected in parallel with multiple first flow channels 21; multiple second flow channels 22 are arranged in parallel on the same plane, and the output flow channel 5 is connected in parallel with multiple second flow channels 22; after the heat transfer medium converges in the input flow channel 4, it simultaneously enters multiple first flow channels 21 and flows forward along the length direction of the liquid cooling module 1, and simultaneously enters multiple second flow channels 22 and flows backward along the length direction of the liquid cooling module 1. The cooling of multiple second flow channels 22 converges in the output flow channel 5 and then flows out, and the heat transfer medium completes the top-down circulation in the liquid cooling module 1;

[0051] Or, multiple first flow channels 21 are arranged in parallel on the same plane, and the input flow channel 4 is connected in parallel with multiple first flow channels 21; multiple second flow channels 22 are arranged in parallel on the same plane, and the output flow channel 5 is connected in parallel with multiple second flow channels 22; after the heat transfer medium converges in the input flow channel 4, it simultaneously enters multiple first flow channels 21 and flows forward along the length direction of the liquid cooling module 1, and simultaneously enters multiple second flow channels 22 and flows backward along the length direction of the liquid cooling module 1. The cooling of multiple second flow channels 22 converges in the output flow channel 5 and then flows out, and the heat transfer medium completes the bottom-up circulation in the liquid cooling module 1.

[0052] A fast temperature-controlled liquid cooling plate module of this technical solution significantly optimizes the flow path of the coolant inside the liquid cooling module 1 by adopting a structure of two layers that are vertically connected, multiple flow channels 2 arranged in parallel, and are parallel to the input flow channel 4 and the output flow channel 5, enabling a vertical circulation to form inside the liquid cooling module 1; this parallel flow channel 2 structure can effectively shorten the total flow distance of the heat transfer medium in the cooling channel, reduce the flow resistance, increase the flow rate, thereby improving the heat exchange efficiency and achieving the purpose of quickly controlling the temperature of the loaded battery cells by the liquid cooling plate 6.

[0053] At the same time, the arrangement of multiple parallel and parallel flow channels 2 in the liquid cooling module 1 reduces the number of battery cells passed by the heat transfer medium, has a short path, a fast flow rate, a low temperature rise of the heat transfer medium, reduces the temperature difference between each battery cell, and enables a temperature equalization effect with a temperature difference less than 1.5 °C between the battery cells, achieving more uniform temperature control, avoiding local overheating, and improving the service life and charge-discharge stability of the battery cells.

[0054] In addition, the liquid cooling module 1 of the present invention adopts a modular structural design. The liquid cooling module 1 and the cooling island 3 are combined and used through end connections, and can be freely assembled according to different battery pack sizes, enhancing the dimensional versatility and adaptability of the liquid cooling plate 6 and reducing the design and manufacturing costs.

[0055] Compared with the serial flow channel 2 structure of traditional liquid cooling devices, the parallel flow channel 2 and vertically circulating flow channel 2 structure of the present invention effectively overcomes problems such as long flow channels 2, long coolant circulation paths, poor heat transfer effects, large temperature differences in the flow channels 2, complex structures, and poor adaptability, providing a more efficient and flexible liquid cooling heat transfer solution for the thermal management system of high-performance batteries.

[0056] As one of the optional implementation manners

[0057] Regarding the specific composition method of the above liquid cooling module 1 forming the liquid cooling plate 6, it can form a single-board structure, specifically: a single liquid cooling module 1 and a single cooling island 3 are combined to form the liquid cooling plate 6; the length of the cooling island 3 matches the width of the liquid cooling module 1, and the input flow channel 4 and the output flow channel 5 are arranged along the length direction of the cooling island 3.

[0058] When in application, in the single-board structure of the liquid cooling plate 6, the length direction of the cooling island 3 is consistent with the width direction of the liquid cooling module 1, facilitating the compact integration of the overall structure and the pipe layout design.

[0059] The second embodiment of the fast temperature-controlled liquid cooling plate module is as follows Figures 1 to 5As shown, the difference between this embodiment and the first embodiment lies in the specific composition method of the liquid cooling plate 6 formed by the liquid cooling module 1. A multi-plate structure can be formed, specifically: multiple liquid cooling modules 1 are provided, and the multiple liquid cooling modules 1 are spliced in parallel to form a liquid cooling combined module, and the liquid cooling combined module is combined with a single cooling island 3 to form the liquid cooling plate 6; the length of the cooling island 3 increases or decreases with the total width of the splicing quantity of the liquid cooling modules 1.

[0060] Among them, the length of the cooling island 3 matches the width of the liquid cooling combined module, and the input flow channel 4 and the output flow channel 5 are arranged along the length direction of the cooling island 3.

[0061] Regarding the splicing method of the above-mentioned liquid cooling module 1 to form a multi-plate structure, as Figure 5 shown, tenon and mortise blocks 11 are provided on the side surface in the length direction of the liquid cooling module 1; multiple liquid cooling modules 1 are connected to each other by fitting the tenon and mortise blocks 11 to form the liquid cooling plate 6.

[0062] Specifically, the structure of the tenon and mortise block 11 and the fitting connection method are as Figure 5 shown, the tenon and mortise block 11 includes a base block 111, a tenon 112 and a mortise cavity 113; the tenon 112 is arranged at a position on the side surface of the base block 111 away from the liquid cooling module 1 and protrudes from the base block 111 in the vertical direction; the mortise cavity 113 is arranged between the tenon 112 and the side surface of the liquid cooling module 1 and the base block 111; the tenon 112 and the mortise cavity 113 are mutually embraced in both the horizontal direction and the vertical direction; multiple liquid cooling modules 1 are spliced with each other by the tenon 112 and the mortise cavity 113 of the tenon and mortise block 11.

[0063] During application, each liquid cooling module 1 can be connected through the tenon and mortise block 11 provided with a tenon and mortise structure on the side; multiple liquid cooling modules 1 are firmly connected through the mutual fitting of the tenon 112 and the mortise cavity 113, ensuring that the spliced liquid cooling plate 6 has good mechanical strength; the tenon 112 and the mortise cavity 113 are mutually embraced and spliced, having good load-bearing capacity in the vertical direction. When the liquid cooling plate 6 serves as the bottom plate of the battery pack to carry the battery cell module, it can provide good load-bearing and supporting performance for the battery cell module.

[0064] This structure realizes the modular assembly design of the liquid cooling plate 6, which can be freely assembled and matched according to battery packs of different sizes, improving the system versatility and manufacturing flexibility.

[0065] Among them, after multiple liquid cooling modules 1 are spliced through the tenon and mortise blocks 11, it is also necessary to laser weld the joints of the tenon and mortise blocks 11 to fix them, further enhancing the splicing strength of the liquid cooling modules 1 and improving the stability of carrying the battery cell module.

[0066] Regarding the structure of the above-mentioned liquid cooling plate 6 as the bottom for carrying the battery cell module, this embodiment is as Figure 1As shown in the figure, the perimeter of the top surface of the liquid cooling plate 6 is welded and fixed with a surrounding block 61; the cooling island 3 is located outside the surrounding block 61, the side surface of the cooling island 3 is welded and fixed to the adjacent and opposite surrounding block 61, and the bottom surface of the cooling island 3 is welded to the top surface of the liquid cooling plate 6; the inlet of the first flow channel 21 and the outlet of the second flow channel 22 on the liquid cooling module 1 are respectively arranged on the top surface at positions corresponding to the input flow channel 4 and the output flow channel 5 of the cooling island 3.

[0067] The specific installation method of the liquid cooling plate 6 for carrying the battery cell module is that the liquid cooling plate 6 is in contact with the bottom surface of the battery cell module to be installed, the liquid cooling plate 6 carries the battery cell module, and the liquid cooling plate 6 exchanges heat with the battery cell module for cooling or heating the battery cells of the battery cell module.

[0068] During application, in actual use, the liquid cooling plate 6 is installed below the battery cell module, closely attached to the bottom surface of the battery cell module, bearing its weight and conducting heat exchange.

[0069] Specifically, the welding method between the surrounding block 61 and the liquid cooling module 1 is laser welding. Laser welding is fast and has a small heat-affected zone, which can reduce the deformation degree of the liquid cooling module 1, thereby further ensuring the load-bearing performance and thermal management performance of the liquid cooling module 1.

[0070] To further fix the installed battery cell module, a fixing block 62 is also welded and fixed inside the liquid cooling plate 6. The fixing block 62 is provided with screw holes for connecting with the pre-tightening parts or installation parts of the battery cell module.

[0071] The third embodiment of the fast temperature control liquid cooling plate module. The difference between this embodiment and the first embodiment is that a heat conduction pad is installed between the liquid cooling module 1 and the battery cell module.

[0072] During application, to further improve the heat conduction efficiency, a heat conduction pad can be set between the liquid cooling module 1 and the battery cell module to enhance the heat conduction contact, increase the heat transfer speed, and improve the thermal equilibrium effect of the battery cells; this liquid cooling plate 6 can be used for both cooling and heating scenarios to meet the battery cell thermal management requirements under different working conditions.

[0073] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described.

Claims

1. A fast temperature-controlled liquid cooling plate module, characterized in that it includes a liquid cooling module, and two flow channels are arranged inside the liquid cooling module; the two flow channels are stacked and vertically connected in the vertical direction of the liquid cooling module, extend along the length direction of the liquid cooling module, and multiple flow channels are arranged in parallel in the width direction; and a cooling island, in which an input flow channel and an output flow channel are arranged in parallel; the cooling island is connected to the top surface of the end of the liquid cooling module; among the two layers of flow channels, multiple flow channels distributed in the same layer are connected in parallel with the input flow channel and the output flow channel; the input flow channel and the output flow channel are respectively connected to one of the two layers of flow channels, and are used to limit the input heat transfer medium to enter from the input flow channel, pass through one of the two layers of flow channels, then enter the other layer of the two layers of flow channels, and finally flow out through the output flow channel, completing the vertical circulation of the heat transfer medium in the liquid cooling module.

2. The fast temperature-controlled liquid cooling plate module according to claim 1, characterized in that the two flow channels are respectively a first flow channel and a second flow channel, the first flow channel is located above or below the second flow channel, the inlet of the first flow channel is connected to the input flow channel, the outlet of the first flow channel is connected to the inlet of the second flow channel, and the outlet of the second flow channel is connected to the output flow channel.

3. The fast temperature-controlled liquid cooling plate module according to claim 2, characterized in that a single liquid cooling module and a single cooling island are combined to form a liquid cooling plate; the length of the cooling island matches the width of the liquid cooling module, and the input flow channel and the output flow channel are arranged along the length direction of the cooling island.

4. The fast temperature-controlled liquid cooling plate module according to claim 2, characterized in that multiple liquid cooling modules are provided, and multiple liquid cooling modules are spliced in parallel to form a liquid cooling combined module, and the liquid cooling combined module and a single cooling island are combined to form a liquid cooling plate; the length of the cooling island increases or decreases with the total width of the splicing quantity of the liquid cooling modules.

5. The fast temperature-controlled liquid cooling plate module according to claim 4, characterized in that the length of the cooling island matches the width of the liquid cooling combined module, and the input flow channel and the output flow channel are arranged along the length direction of the cooling island.

6. The rapid temperature control liquid cooling plate module according to any one of claims 4 or 5, characterized in that, Tenon and mortise blocks are provided on the side surface in the length direction of the liquid cooling module; multiple liquid cooling modules are mutually embedded and connected by the tenon and mortise blocks to form the liquid cooling plate.

7. The fast temperature-controlled liquid cooling plate module according to claim 6, characterized in that the tenon and mortise block includes a base block, a tenon head and a mortise cavity; the tenon head is arranged at a position on the side surface of the base block away from the liquid cooling module and protrudes vertically from the base block; the mortise cavity is arranged between the tenon head and the side surface of the liquid cooling module and the base block; the tenon head and the mortise cavity are mutually embraced in both the horizontal direction and the vertical direction; multiple liquid cooling modules are mutually embraced and spliced by the tenon head and the mortise cavity of the tenon and mortise block.

8. The rapid temperature control liquid cooling plate module according to any one of claim 3 or claim 4, characterized in that, Perimeter blocks are welded and fixed on the four perimeters of the top surface of the liquid cooling plate; The cooling island is located outside the peripheral block, the side surface of the cooling island is fixedly welded to the adjacent and opposite peripheral block, and the bottom surface of the cooling island is welded to the top surface of the liquid cooling plate; The inlets of the first flow channels and the outlets of the second flow channels on the liquid cooling module are respectively arranged on the top surfaces corresponding to the input flow channels and the output flow channels of the cooling island.

9. The rapid temperature control liquid cooling plate module according to claim 8, wherein The liquid cooling plate is in contact with the bottom surface of the battery cell module to be installed, the liquid cooling plate bears the battery cell module, and the liquid cooling plate exchanges heat with the battery cell module for cooling or heating the battery cells of the battery cell module.

10. The rapid temperature control liquid cooling plate module according to claim 9, wherein A heat conducting pad is installed between the liquid cooling module and the battery cell module.

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