Liquid cooling plate and battery pack

Abstract

The application provides a liquid cooling plate, which is provided with a working medium inlet, a working medium outlet, a liquid inlet channel and a flow guide channel; the liquid inlet channel is directly communicated with the working medium inlet; the flow guide channel is directly communicated between the working medium outlet and the liquid inlet channel; the working medium inlet is located at a first end of an overall channel formed by the liquid inlet channel and the flow guide channel, and an end of the liquid inlet channel close to the flow guide channel is located at a second end of the overall channel away from the first end, so that the cooling working medium directly flows from the working medium inlet to the second end. By limiting the liquid inlet channel to extend from the first end to the second end, the cooling working medium can flow to the area of the overall channel relatively far from the working medium inlet, so that the temperature difference near the first end and the second end is relatively small, and then the cooling working medium can be fully heat exchanged through the flow guide channel, so that the temperature difference of the liquid cooling plate in the area far from the working medium inlet and close to the working medium inlet is relatively small under the condition of ensuring that the cooling working medium fully plays its heat exchange capacity.

Description

Technical Field

[0001] This application relates to the field of power battery technology, specifically to a liquid cooling plate and battery pack. Background Technology

[0002] Liquid cooling plates are a common cooling method for energy storage and power batteries. To achieve better cooling performance, the flow channels of a liquid cooling plate are typically arranged in an S-shape from the inlet to the outlet. In related technologies, as the coolant gradually flows from the inlet to the outlet, the temperature of the liquid cooling plate near the inlet is lower than in other areas. This results in inconsistent temperatures between different areas of the battery module and between different cells within the same module, affecting the battery's charge / discharge performance and cycle life. Utility Model Content

[0003] The embodiments of this application provide a liquid cooling plate and a battery pack, which can improve the technical problem of large temperature differences near the liquid inlet and outlet when the liquid cooling plate is used.

[0004] In a first aspect, some embodiments of this application provide a liquid cooling plate, which has a working fluid inlet for the inflow of cooling working fluid and a working fluid outlet for the outflow of cooling working fluid. The liquid cooling plate further includes:

[0005] The liquid inlet channel is directly connected to the working fluid inlet.

[0006] The drainage channel is directly connected between the working fluid outlet and the liquid inlet channel;

[0007] The working fluid inlet is located at the first end of the integral channel formed by the liquid inlet channel and the drainage channel, and the end of the liquid inlet channel that is connected to the drainage channel is located at the second end of the integral channel away from the first end, so that the cooling working fluid flows directly from the working fluid inlet to the second end.

[0008] By adopting the above scheme, the cooling medium flows more quickly to the area away from the working medium inlet after entering the liquid cooling plate, thereby making the temperature difference between the two areas of the liquid cooling plate that are relatively close to the working medium inlet and relatively far from the working medium inlet smaller.

[0009] In some embodiments, the first end and the second end are located at opposite ends of the diagonal of a fitted polygon; the overall channel is located in the inner perimeter region of the fitted polygon.

[0010] The above configuration integrates the entire channel into a spatial region that closely matches the shape and contour of the battery, so as to fully exchange heat with the cooling medium and ensure more uniform heat exchange in all parts of the battery.

[0011] In some embodiments, the fitted polygon is configured as a quadrilateral.

[0012] In some embodiments, the liquid inlet channel extends in a straight line.

[0013] This setup facilitates the flow of the cooling medium from the first end to the second end.

[0014] In some embodiments, the wall surface of the liquid-cooled plate forming the drainage channel includes,

[0015] At least two flow guide sections are formed at intervals on the liquid cooling plate;

[0016] A connecting section connects two adjacent guide sections to communicate between the two adjacent guide sections;

[0017] The drainage channel is connected to the liquid inlet channel at at least one of the guide sections.

[0018] The aforementioned arrangement of the guide section and connecting section allows the flow channel to define the direction of the cooling medium's flow within the liquid cooling plate.

[0019] In some embodiments, the wall surface of the liquid-cooled plate forming the drainage channel further includes,

[0020] An outlet section is connected between the wall surface of the liquid-cooled plate that forms the working fluid outlet and at least one of the guide sections.

[0021] By setting up an outlet section, the cooling medium can be guided from the diversion channel to the outlet.

[0022] In some embodiments, the liquid cooling plate is provided with at least two drainage channels, and the at least two drainage channels are respectively located on opposite sides of the liquid inlet channel.

[0023] Setting up at least two flow channels allows the cooling medium to flow through a larger area of ​​the liquid cooling plate, making full use of the cooling medium to exchange heat with the power battery.

[0024] In some embodiments, the ratio of the width of the inlet channel to the width of the drainage channel is greater than or equal to 2.

[0025] The above configuration ensures a relatively uniform distribution of the cooling medium in each flow channel, further guaranteeing a relatively uniform temperature across the liquid cooling plate. This results in a more uniform heat exchange effect of the cooling medium on various local areas of the power battery, thus limiting the temperature difference between local areas of the power battery.

[0026] In some embodiments, the working fluid inlet and the working fluid outlet are formed on the same side of the liquid cooling plate.

[0027] This setup facilitates the centralized placement of external piping for the cooling fluid, which is connected to the liquid cooling plate, and makes the spatial layout of these piping systems easier.

[0028] In some embodiments, the working fluid outlet is formed at the periphery of the second end of the integral channel.

[0029] This configuration helps to make the overall length of multiple flow channels more consistent, so that the area through which the cooling medium flows on both sides of the inlet channel is also more similar, thereby further ensuring a relatively uniform heat exchange effect on various local areas of the power battery.

[0030] Secondly, some embodiments of this application also provide a battery pack, including the liquid cooling plate as described above.

[0031] The beneficial effects of the embodiments of this application,

[0032] In the embodiments of this application, by restricting the liquid inlet channel directly connected to the working fluid inlet from extending from the first end to the second end, the cooling working fluid, after entering the liquid cooling plate from the working fluid inlet, can flow relatively quickly to the area of ​​the overall channel that is relatively far from the working fluid inlet. During this process, the heat exchange of the cooling working fluid is less, thereby making the temperature difference near the first end and the second end smaller. Subsequently, by setting a flow channel, the cooling working fluid can fully exchange heat. Thus, while ensuring that the cooling working fluid fully utilizes its heat exchange capacity, the temperature difference of the liquid cooling plate in the area far from the working fluid inlet and the area near the working fluid inlet is relatively small, which is beneficial to ensuring the battery charge and discharge performance and battery cycle life. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is an exploded view of the liquid cooling plate provided in an embodiment of this application;

[0035] Figure 2 This is a partial structural schematic diagram of the first type of liquid cooling plate provided in the embodiments of this application;

[0036] Figure 3 This is a partial structural schematic diagram of the second type of liquid cooling plate provided in the embodiments of this application;

[0037] Figure 4 This is a partial structural schematic diagram of the third type of liquid cooling plate provided in the embodiments of this application;

[0038] Figure 5 yes Figure 1 The diagram shows the assembly relationship between the liquid cooling plate and the liquid cooling plate connector.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100. Liquid cooling plate; 100a. Overall channel; 100b. Main body; 100c. Sealing plate;

[0041] 110. Working fluid inlet;

[0042] 120. Export of working fluid;

[0043] 130. Liquid inlet channel;

[0044] 140. Drainage channel; 140a. Guide section; 140b. Connecting section; 140c. Outflow section; 141. First drainage channel; 142. Second drainage channel;

[0045] 200. Inlet pipe;

[0046] 300. Drain pipe;

[0047] 400. Liquid cooling plate connector;

[0048] X1, First end; X2, Second end; A, Fitted polygon; a, Width of inlet channel; b, Width of drainage channel. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0050] According to the first aspect of this application, referring to Figures 1 to 5As shown, this application provides a liquid cooling plate 100, which has a working fluid inlet 110 for the inflow of cooling working fluid and a working fluid outlet 120 for the outflow of cooling working fluid. This liquid cooling plate 100 can be integrated into devices such as energy storage batteries and power batteries. During use, the cooling working fluid in the liquid cooling plate 100 exchanges heat with the device to achieve cooling. Of course, based on the temperature difference between the cooling working fluid and the device, in some application scenarios, the liquid cooling plate 100 can also be used to heat the device according to usage requirements. This application does not limit this; the cooling working fluid can be a coolant such as cooling water. The following mainly uses the integration of the liquid cooling plate 100 into a power battery as an example to illustrate the inventive concept of this application.

[0051] Reference Figure 1 and Figure 2 As shown, the liquid cooling plate 100 provided in this application is provided with: a liquid inlet channel 130 and a drainage channel 140.

[0052] The liquid inlet channel 130 is directly connected to the working fluid inlet 110, meaning that the cooling working fluid enters the liquid cooling plate 100 from the working fluid inlet 110 and then directly enters the liquid inlet channel 130. The flow channel 140 is directly connected between the working fluid outlet 120 and the liquid inlet channel 130, meaning that the cooling working fluid in the liquid inlet channel 130 flows to the flow channel 140. By setting the flow channel 140, the coolant flows through more areas within the liquid cooling plate 100 to facilitate more thorough heat exchange with the equipment integrating the liquid cooling plate 100. Afterward, the cooling working fluid flows out from the working fluid outlet 120.

[0053] As the cooling medium flows through the liquid cooling plate 100, it gradually exchanges heat with the equipment integrated with the liquid cooling plate 100, causing temperature changes in the cooling medium itself. Specifically, the temperature difference between the region near the working medium inlet 110 in the integrated channel 100a formed by the inlet channel 130 and the outlet channel 140 and the region furthest from the working medium inlet 110 is significant. This results in substantial temperature differences between localized areas of the equipment integrated with the liquid cooling plate 100, which is detrimental to stable operation. Taking the integration of the liquid cooling plate 100 into a power battery as an example, the above problem will cause significant temperature differences among some battery cells, affecting the cell lifespan.

[0054] For the purpose of at least alleviating the above problems, refer to Figure 2 As shown, the liquid cooling plate 100 provided in this application is defined as follows: the working fluid inlet 110 is located at the first end X1 of the integral channel 100a formed by the liquid inlet channel 130 and the drainage channel 140, and the end of the liquid inlet channel 130 that is connected to the drainage channel 140 is located at the second end X2 of the integral channel 100a away from the first end X1, so that the cooling working fluid flows directly from the working fluid inlet 110 to the second end X2.

[0055] By adopting the above scheme, by restricting the extension of the liquid inlet channel 130, which is directly connected to the working fluid inlet 110, from the first end X1 to the second end X2, the cooling working fluid can flow relatively quickly to the area of ​​the overall channel 100a that is relatively far away from the working fluid inlet 110 after entering the liquid cooling plate 100 from the working fluid inlet 110. During this process, the heat exchange of the cooling working fluid is less, thus making the temperature difference near the first end X1 and the second end X2 smaller. Subsequently, by setting the flow channel 140, the cooling working fluid can fully exchange heat. Therefore, while ensuring that the cooling working fluid fully exerts its heat exchange capacity, the temperature difference between the areas of the liquid cooling plate 100 far from the working fluid inlet 110 and those close to the working fluid inlet 110 is relatively small. Taking the liquid cooling plate 100 integrated into a power battery as an example, this setting is beneficial to reduce the temperature difference between cells in different areas of the battery, ensuring the battery's charge and discharge performance and cycle life.

[0056] It is understood that the second end X2 mentioned in this application is the position furthest from the working fluid inlet 110 in the overall channel 100a. One end of the liquid inlet channel 130 is formed at the second end X2, which means that the end of the liquid inlet channel 130 furthest from the working fluid inlet 110 is located in the area of ​​the second end X2 or near the second end X2, and does not specifically mean that the end of the liquid inlet channel 130 furthest from the working fluid inlet 110 is the position furthest from the working fluid inlet 110 in the overall channel 100a. This can also achieve the purpose of balancing the temperature difference between different cells by using the above-mentioned arrangement of the liquid inlet channel 130.

[0057] As a specific plan, refer to Figure 2 and Figure 3 As shown, the overall channel 100a is located within the inner region of a fitted polygon A.

[0058] That is, based on the shape and contour of the battery, the overall channel 100a can be integrated into a spatial region that closely resembles the shape and contour of the battery. For example, the boundary of this spatial region is the aforementioned fitted polygon A. The wall of the liquid cooling plate 100 forming the overall channel 100a constitutes at least a portion of the boundary of the fitted polygon A, so that the cooling medium in the overall channel 100a can fully exchange heat with the battery. The first end X1 and the second end X2 are located at opposite ends of the diagonal of a fitted polygon A, so that the cooling medium can quickly flow to the vicinity of the region furthest or relatively far from the working medium inlet 110.

[0059] In practical applications, power batteries are often designed with a shape that is close to a quadrilateral. Therefore, in some embodiments, referencing Figure 2 and Figure 3As shown, the fitting polygon A is configured as a quadrilateral to fit the outer contour of the battery. Accordingly, the aforementioned first end X1 and second end X2 can be set to be located in the regions where the two ends of the diagonal of the quadrilateral are located, so that the cooling medium flows more quickly away from the cooling inlet after entering the liquid cooling plate 100.

[0060] In one embodiment, the inlet channel 130 extends in a straight line, meaning that the cooling medium flows approximately in a straight line from the working medium inlet to the guide channel 140 within the inlet channel 130. The approximate flow direction of the cooling medium within the inlet channel 130 is the straight line direction mentioned herein. More specifically, in Figure 1 and Figure 2 In the example implementation, the overall channel 100a is distributed approximately within a rectangular area, and the liquid inlet channel 130 extends approximately along the diagonal of this rectangular area, i.e., the aforementioned straight line direction is the direction defined by the diagonal of the rectangular area. This arrangement can further allow the cooling medium to flow more quickly to a location away from the cooling inlet, thereby further reducing the temperature difference between the areas where the first end X1 and the second end X2 are located.

[0061] As a specific plan, refer to Figure 3 As shown, the wall surface of the liquid cooling plate 100 forming the flow channel 140 includes: a flow guiding section 140a and a connecting section 140b.

[0062] At least two guide sections 140a are formed at intervals on the liquid cooling plate 100, and the flow channel 140 communicates with the liquid inlet channel 130 at at least one guide section 140a. A connecting section 140b connects two adjacent guide sections 140a to connect the two adjacent guide sections 140a.

[0063] Reference Figure 3 As shown, the above-mentioned arrangement of the guide section 140a and the connecting section 140b allows the flow channel 140 to define the direction of the coolant flow within the liquid cooling plate 100. For example, by connecting the guide section 140a and the connecting section 140b, the coolant flows in an S-shape in at least a portion of the flow channel 140, guiding the coolant to gradually flow to different areas of the liquid cooling plate 100, so that the coolant can fully exchange heat with the power battery and other equipment.

[0064] The specific methods for guiding the flow of the cooling working fluid in the guide section 140a and the connecting section 140b can be flexibly configured as needed. Figure 2 and Figure 3 In a specific implementation of the example, at least a portion of the guide section 140a can extend generally in the vertical direction shown in the figure and form rounded corners at both ends, while the connecting section 140b can extend generally in the horizontal direction shown in the figure and connect with two adjacent guide sections 140a to guide the flow direction of the cooling medium. Figure 4In a specific implementation of the example, at least a portion of the guide section 140a may extend generally in a direction parallel to the liquid inlet channel 130, i.e., extend at an angle to the left-right or up-down direction as shown in the figure, in order to guide the flow direction of the cooling medium.

[0065] In some other specific embodiments, one end of each of the multiple guide sections 140a can be connected to the end of the wall of the liquid cooling plate 100 forming the liquid inlet channel 130 away from the working fluid inlet 110, and a connecting section 140b can be connected to the end of the adjacent guide section 140a away from the liquid inlet channel 130, so that the cooling working fluid flows from the liquid inlet channel 130 to the area defined by each guide section 140a. This specific embodiment is not shown in the accompanying drawings.

[0066] For more specific solutions, refer to Figure 3 As shown, the wall surface of the liquid cooling plate 100 forming the flow channel 140 further includes an outflow section 140c. The outflow section 140c is connected between the wall surface of the liquid cooling plate 100 forming the working fluid outlet 120 and at least one guide section 140a to guide the cooling working fluid from the flow channel 140 to the working fluid outlet 120.

[0067] The specific number of drainage channels 140 in this embodiment can be flexibly set according to needs. In one embodiment, the liquid cooling plate 100 is provided with at least two drainage channels 140, and the at least two drainage channels 140 are respectively located on opposite sides of the liquid inlet channel 130. Figures 2 to 4 In the specific implementation of the example, two drainage channels 140 are provided, namely the first drainage channel 141 and the second drainage channel 142, which are located on both sides of the liquid inlet channel 130 extending in a straight direction, so that the cooling medium flows through more areas of the liquid cooling plate 100 and makes full use of the cooling medium to exchange heat with the power battery.

[0068] In the specific plan, refer to Figure 4 As shown, the ratio of the width 'a' of the inlet channel to the width 'b' of the outlet channel is greater than or equal to 2. In this application, the width 'a' of the inlet channel defines the flow area of ​​the cooling medium in the inlet channel 130, and correspondingly, the width 'b' of the outlet channel defines the flow area of ​​the cooling medium in the outlet channel 140. By limiting the ratio of the width 'a' of the inlet channel to the width 'b' of the outlet channel, and matching it with the number of outlet channels 140, the distribution of the cooling medium in each outlet channel 140 is made relatively uniform, further ensuring that the temperature of the liquid cooling plate 100 is relatively uniform. This results in a more uniform heat exchange effect of the cooling medium on various local areas of the power battery, thereby limiting the temperature difference between local areas of the power battery.

[0069] As a specific plan, in Figure 4In the specific implementation of the example, a diversion channel 140 is provided on each side of the liquid inlet channel 130, and the ratio of the width a of the liquid inlet channel to the width b of the diversion channel is 2, so that the total amount of cooling working fluid in the two diversion channels 140 is relatively uniform.

[0070] In some alternative embodiments, refer to Figure 2 and Figure 4 As shown, the working fluid inlet 110 and the working fluid outlet 120 can be formed on the same side of the liquid cooling plate 100. In the specific embodiment illustrated in the figure, the liquid cooling plate 100 is generally configured to be rectangular, and the ends of the working fluid inlet 110 and the working fluid outlet 120 away from the overall channel 100a are both formed on the same end face of the rectangular liquid cooling plate 100. That is, the working fluid inlet 110 and the working fluid outlet 120 are formed on the same side of the liquid cooling plate 100. This arrangement is conducive to the centralized arrangement of external pipelines for the flow of cooling working fluid connected to the liquid cooling plate 100, and facilitates the spatial layout of these pipelines.

[0071] In some alternative embodiments, refer to Figure 3 As shown, the working fluid outlet 120 can also be formed on the periphery of the second end X2 of the overall channel 100a. In the specific implementation of the example shown in the figure, the end of the working fluid inlet 110 away from the liquid inlet channel 130 is formed on one end face of the cuboid liquid cooling plate 100, and the end of the working fluid outlet away from the flow channel 140 is formed on the opposite end face of the liquid cooling plate 100 where the working fluid inlet 110 is provided, and is located close to the second end X2. In the scheme where multiple flow channels 140 are provided, this configuration is beneficial to make the overall length of the multiple flow channels 140 more consistent, so that the area through which the cooling working fluid flows on both sides of the liquid inlet channel 130 is also more similar, so as to further ensure a relatively uniform heat exchange effect on various local areas of the power battery.

[0072] In some embodiments, refer to Figure 5 As shown, the inlet pipe 200 of the liquid cooling plate 100 can be fixed at the working fluid inlet 110 by welding, threaded connection or other means. Correspondingly, the outlet pipe 300 of the liquid cooling plate 100 can be fixed at the working fluid outlet 120 by welding, threaded connection or other means, so that the inlet pipe 200 and the outlet pipe 300 can be used to guide the cooling working fluid into or out of the liquid cooling plate 100.

[0073] In some embodiments, refer to Figure 1 As shown, the liquid cooling plate 100 may include a main body 100b and a sealing plate 100c. The main body 100b and the sealing plate 100c are fixedly disposed, and the aforementioned integral flow channel is formed in the internal space enclosed by the main body 100b and the sealing plate 100c, so that the cooling medium can circulate inside the liquid cooling plate 100 and exchange heat with the battery using the main body 100b and / or the sealing plate 100c.

[0074] In some embodiments, refer to Figure 5 As shown, the liquid cooling plate 100 can be further fixed to a liquid cooling plate connector 400. The liquid cooling plate connector 400 may have threaded holes or other connection structures, suitable for fixing the liquid cooling plate 100 to the battery, ensuring contact between the liquid cooling plate 100 and the battery for heat exchange. The connection structure and the connection method between the liquid cooling plate connector 400 and the liquid cooling plate 100 are not shown in the accompanying drawings. This application does not limit the connection method between the liquid cooling plate connector 400 and the liquid cooling plate 100.

[0075] According to a second aspect of this application, a battery pack is also provided, including the liquid cooling plate 100 described above. This battery pack has the beneficial effects of the liquid cooling plate 100 described above, which will not be elaborated upon here.

[0076] This battery pack can be used as an energy storage battery, a power battery, etc. Of course, it can also be applied to other usage scenarios as needed.

[0077] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A liquid cooling plate (100) provided with a working medium inlet (110) for inflow of a cooling working medium and a working medium outlet (120) for outflow of the cooling working medium, characterized in that, The liquid cooling plate (100) is also provided with: The liquid inlet channel (130) is directly connected to the working fluid inlet (110); The drainage channel (140) is directly connected between the working fluid outlet (120) and the liquid inlet channel (130); The working fluid inlet (110) is located at the first end (X1) of the integral channel (100a) formed by the liquid inlet channel (130) and the drainage channel (140). The end of the liquid inlet channel (130) that communicates with the drainage channel (140) is located at the second end (X2) of the integral channel (100a) away from the first end (X1), so that the cooling working fluid flows directly from the working fluid inlet (110) to the second end (X2).

2. The liquid-cooled plate (100) according to claim 1, characterized in that, The first end (X1) and the second end (X2) are located at opposite ends of the diagonal of a fitted polygon (A); the overall channel (100a) is located in the inner region of the fitted polygon (A).

3. The liquid-cooled plate (100) according to claim 2, characterized in that, The fitted polygon (A) is configured as a quadrilateral.

4. The liquid-cooled plate (100) according to claim 1, characterized in that, The liquid inlet channel (130) extends in a straight line.

5. The liquid-cooled plate (100) according to any one of claims 1 to 4, characterized in that, The wall surface of the liquid cooling plate (100) forming the drainage channel (140) includes: At least two flow guide sections (140a) are formed at intervals on the liquid cooling plate (100); A connecting segment (140b) is connected between two adjacent guide segments (140a) to connect the two adjacent guide segments (140a); The drainage channel (140) is connected to the liquid inlet channel (130) at at least one of the guide sections (140a).

6. The liquid-cooled plate (100) according to claim 5, characterized in that, The wall surface of the liquid cooling plate (100) forming the drainage channel (140) further includes: An outlet section (140c) is connected between the wall of the liquid cooling plate (100) forming the working fluid outlet (120) and at least one of the guide sections (140a).

7. The liquid-cooled plate (100) according to any one of claims 1 to 4, characterized in that, The liquid cooling plate (100) is provided with at least two drainage channels (140), and the at least two drainage channels (140) are respectively located on opposite sides of the liquid inlet channel (130).

8. The liquid-cooled plate (100) according to claim 7, characterized in that, The ratio of the width (a) of the inlet channel to the width (b) of the drainage channel is greater than or equal to 2.

9. The liquid-cooled plate (100) according to any one of claims 1 to 4, characterized in that, The working fluid inlet (110) and the working fluid outlet (120) are formed on the same side of the liquid cooling plate (100).

10. The liquid cold plate (100) of any one of claims 1-4, wherein: the working fluid outlet (120) is formed on a periphery of the second end (X2) of the unitary channel (100a).

11. A battery pack, characterized by including the liquid cold plate (100) of any one of claims 1-10.

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