Liquid cooling plate and battery pack

Abstract

The utility model provides a liquid cooling plate liquid and a battery pack cold plate, which comprise a body, a first plate surface and a second plate surface which are oppositely arranged, the first plate surface is used for being connected with a battery module, and a flow channel groove for transmitting a cooling medium is arranged in the body; the reinforcing plate is connected with the second plate surface; and at least part of one side, close to the second plate surface, of the supporting piece is connected with the reinforcing plate. By applying the technical scheme of the utility model, the technical problem of low structural strength of the liquid cooling plate can be improved.

Description

Technical Field

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

[0002] In related technologies, liquid cooling plates provide efficient heat dissipation and stable load-bearing for the entire energy storage cabinet. Typically, liquid cooling plates are welded to enclose the entire structure. However, the structural strength of the liquid cooling plate cannot be guaranteed. Especially when encountering abnormal situations such as stone impacts, collisions, or bumps, the structure of the liquid cooling plate is prone to deformation, thereby reducing its service life and failing to meet the usage requirements of the device. Utility Model Content

[0003] The embodiments of this utility model provide a liquid cooling plate and a battery pack, which can improve the technical problem of low structural strength of the liquid cooling plate.

[0004] In a first aspect, embodiments of the present invention provide a liquid cooling plate, which includes: a body having a first plate surface and a second plate surface disposed opposite to each other, the first plate surface being used to connect with a battery module, and a flow channel groove for transmitting a cooling medium being provided in the body; a reinforcing plate being connected to the second plate surface; and a support member having at least a portion of its side near the second plate surface connected to the reinforcing plate.

[0005] In one embodiment, the liquid cooling plate includes a plurality of reinforcing plates, which are spaced apart along the length of the body or spaced apart along the width of the body.

[0006] In one embodiment, the reinforcing plate has a first end and a second end that are disposed opposite to each other in the width direction of the body, the first ends of a plurality of reinforcing plates are connected to each other to form a first connecting segment, and the second ends of a plurality of reinforcing plates are connected to each other to form a second connecting segment.

[0007] In one embodiment, the support member is used to support the first connecting segment and / or the second connecting segment.

[0008] In one embodiment, the length of the reinforcing plate extending along the width direction of the body is less than or equal to the width of the body.

[0009] In one embodiment, the thickness of the reinforcing plate is H, where 1.2 mm ≤ H ≤ 2 mm.

[0010] In one embodiment, the contact surface between the reinforcing plate and the support extends along the width direction of the body by a length of L1, and the reinforcing plate extends along the width direction of the body by a length of L2, where 4% ≤ L1: L2 ≤ 7%.

[0011] In one embodiment, the contact surface between the reinforcing plate and the support extends along the length of the body by L3, and the extension length of the reinforcing plate along the length of the body by L4, where 9% ≤ L3 and L4 ≤ 15%.

[0012] In one embodiment, the contact surface between the reinforcing plate and the support extends along the width direction of the body by a length of L1, where 30mm ≤ L1 ≤ 50mm.

[0013] In one embodiment, the contact surface between the reinforcing plate and the support extends along the length of the body by L3, where 100mm ≤ L3 ≤ 160mm.

[0014] In one embodiment, the reinforcing plate has a protrusion facing the body, the side of the protrusion closest to the body being used for connection with the body.

[0015] In one embodiment, the support member includes a first segment, a second segment, a third segment, a fourth segment, and a fifth segment that are connected in sequence and bent in turn; wherein the first segment and the fifth segment are connected, and a cavity is formed between the first segment, the second segment, the third segment, and the fourth segment.

[0016] In one embodiment, the support member is integrally formed by roll forming.

[0017] In one embodiment, the body includes:

[0018] The first plate has a liquid outlet and a liquid inlet;

[0019] The second plate has a flow channel groove. The first plate is placed on the second plate so that the liquid outlet, the liquid inlet and the flow channel groove are interconnected. The side of the first plate away from the second plate forms the first plate surface, and the side of the second plate away from the first plate forms the second plate surface.

[0020] Secondly, embodiments of the present invention provide a battery pack, which includes the aforementioned liquid cooling plate.

[0021] By applying the technical solution of this utility model, the main body, reinforcing plate, and support member are stacked sequentially, and the side of the support member closest to the second plate is at least partially connected to the reinforcing plate. In this way, when the main body is subjected to external pressure, the force can be transferred to the reinforcing plate in a timely manner. At the same time, since the support member is provided below the reinforcing plate, when the main body is subjected to external pressure, the force on the liquid cooling plate can be transferred to the support member through the reinforcing plate. Through the double buffering of the reinforcing plate and the support member, the probability of deformation of the main body under external force can be reduced, thereby improving the structural strength of the main body and making it less prone to deformation, so as to meet the usage requirements of the device. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional schematic diagram of the liquid cooling plate provided in an embodiment of this utility model;

[0024] Figure 2 This is a bottom view of the liquid cooling plate provided in an embodiment of this utility model;

[0025] Figure 3 This is a three-dimensional schematic diagram of the liquid cooling plate provided in an embodiment of this utility model;

[0026] Figure 4 This is a three-dimensional schematic diagram of the main body provided in an embodiment of this utility model;

[0027] Figure 5 This is a three-dimensional schematic diagram of the reinforcing plate provided in an embodiment of the present utility model;

[0028] Figure 6 yes Figure 3 An enlarged view of point A in the middle.

[0029] The above figures include the following reference numerals:

[0030] Body 10, first plate 11, second plate 12, first plate 13, liquid outlet 131, liquid inlet 132, second plate 14, flow channel 141, reinforcing plate 20, protrusion 21, support member 30, first section 31, second section 32, third section 33, fourth section 34, fifth section 35, length direction X, width direction Y. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figures 1 to 6As shown, in a first aspect, an embodiment of the present invention provides a liquid cooling plate, which includes: a body 10 having a first plate surface 11 and a second plate surface 12 disposed opposite to each other, the first plate surface 11 being used to connect to a battery module; a reinforcing plate 20 being connected to the second plate surface 12; and a support member 30, the side of the support member 30 near the second plate surface 12 being at least partially connected to the reinforcing plate 20.

[0033] By applying the technical solution of this utility model, the body 10, the reinforcing plate 20 and the support member 30 are stacked in sequence, and the side of the support member 30 closest to the second plate surface 12 is at least partially connected to the reinforcing plate 20. In this way, when the body 10 is subjected to external pressure, the force can be transferred to the reinforcing plate 20 in a timely manner. At the same time, since the support member 30 is provided below the reinforcing plate 20, the probability of deformation of the body 10 when subjected to external force can be reduced, thereby improving the structural strength of the body 10 and making the body 10 less prone to deformation, so as to meet the usage requirements of the device.

[0034] In one embodiment, the liquid cooling plate includes multiple reinforcing plates 20, which are spaced apart along the length of the body 10 or spaced apart along the width of the body. This design, with the reinforcing plates spaced apart along the length of the body 10, significantly improves the overall strength and rigidity of the liquid cooling plate, preventing deformation or damage during use. This is crucial for maintaining the long-term stability and reliability of the liquid cooling plate. The reinforcing plates 20 not only provide structural support but also serve as auxiliary channels for heat dissipation. By rationally designing the shape and arrangement of the reinforcing plates 20, the heat dissipation path can be further optimized, improving heat dissipation efficiency. In some special applications, such as within the battery packs of new energy vehicles, the liquid cooling plate needs to withstand significant vibration and impact. The presence of the reinforcing plates 20 can significantly improve the adaptability of the liquid cooling plate to these harsh environments. The reinforcing plates 20 can typically be manufactured together with the liquid cooling plate body 10, simplifying the production process. Simultaneously, the design of the reinforcing plates 20 facilitates subsequent assembly and installation.

[0035] Multiple reinforcing plates 20 are arranged at intervals along the width of the body 10. This design significantly improves the overall strength and rigidity of the liquid cooling plate, preventing deformation or damage during use. This is crucial for maintaining the long-term stability and reliability of the liquid cooling plate. The reinforcing plates 20 not only provide structural support but also serve as auxiliary channels for heat dissipation. By rationally designing the shape and arrangement of the reinforcing plates 20, the heat dissipation path can be further optimized, improving heat dissipation efficiency. In some special applications, such as within the battery packs of new energy vehicles, the liquid cooling plate needs to withstand significant vibration and impact. The presence of the reinforcing plates 20 significantly improves the adaptability of the liquid cooling plate to these harsh environments. The reinforcing plates 20 can typically be manufactured together with the liquid cooling plate body 10, simplifying the production process. Simultaneously, the design of the reinforcing plates 20 also facilitates subsequent assembly and installation.

[0036] In this application, the material of the body 10 can be copper, aluminum, or stainless steel, etc. Copper is an excellent thermal conductor with high thermal conductivity and good processing performance. Copper liquid cooling plates are widely used in high heat density applications such as data centers, effectively reducing equipment temperature and improving operational stability. Although aluminum has a lower thermal conductivity than copper, it is more affordable and has good corrosion resistance. Aluminum also has a lower density, resulting in better weight reduction, making it suitable for applications where weight is a concern. Furthermore, aluminum has good plasticity, making it easy to process into various shapes to meet different installation requirements. Stainless steel liquid cooling plates have attracted attention due to their excellent durability and stability. Stainless steel has high corrosion resistance and can maintain stable performance over long periods in harsh environments. It also has high strength, enabling it to withstand significant pressure.

[0037] In one embodiment, the reinforcing plates have a first end and a second end arranged opposite each other in the width direction of the body. The first ends of multiple reinforcing plates are connected to each other to form a first connecting segment, and the second ends of multiple reinforcing plates are connected to each other to form a second connecting segment. These advantages are mainly reflected in structural strength, stability, and design flexibility. By setting the above structure, the load-bearing capacity of the body in the width or length direction can be significantly increased. At the same time, the above connection method makes the originally dispersed reinforcing plates form a whole, thereby jointly resisting external loads and improving the overall structural strength and stability. After the reinforcing plates are connected into segments, the deformation or torsion of the structure under stress can be more effectively prevented. Especially when subjected to large lateral loads or torsional moments, the first and second connecting segments can significantly enhance the stability of the structure, ensuring that the structure can maintain its original shape and size. Connecting the reinforcing plates into segments can also optimize the stress distribution in the structure.

[0038] During stress distribution, the first and second connecting sections can distribute stress more evenly throughout the entire structure, thus avoiding structural failure caused by localized stress concentration. This optimized stress distribution helps extend the service life of the structure and improve safety. The reinforcing plates using this configuration can be flexibly designed according to actual needs. For example, different load-bearing requirements can be met by adjusting the number, size, and connection method of the reinforcing plates. This design flexibility makes this configuration suitable for a variety of different application scenarios and conditions. Compared to using reinforcing plates individually, connecting them into sections simplifies the construction and maintenance process. During construction, it is easier to assemble the reinforcing plates into a complete structure; during maintenance, it is easier to inspect and replace damaged reinforcing plates or connecting sections.

[0039] In one embodiment, the reinforcing plate 20 extends along the width direction of the body 10 in a length less than or equal to the width of the body 10. Since the reinforcing plate 20 fully covers the width of the body 10, the structural strength and stability of the liquid cooling plate in the width direction can be significantly improved. This helps prevent the liquid cooling plate from deforming or being damaged under lateral pressure or vibration. Simultaneously, the reinforcing plate 20 not only provides structural support but also serves as an auxiliary channel for heat dissipation. When the reinforcing plate 20 fully covers the width of the body 10, heat can be more effectively dispersed and transferred, thereby improving heat dissipation efficiency. Furthermore, the increased contact area between the reinforcing plate 20 and the body 10 also contributes to improved heat conduction efficiency. Moreover, the full coverage of the body 10 by the reinforcing plate 20 significantly improves the overall rigidity of the liquid cooling plate. This is particularly important for applications requiring the resistance to large loads or vibrations, such as in the battery packs of new energy vehicles. Furthermore, when the width of the reinforcing plate 20 is equal to that of the body 10, the manufacturing process can be simplified, reducing production costs. For example, during processing, precise alignment and fixation of the reinforcing plate 20 and the body 10 can be achieved more easily.

[0040] In one embodiment, the thickness of the reinforcing plate 20 is H, where 1.2 mm ≤ H ≤ 2 mm. Within this thickness range, the reinforcing plate 20 provides sufficient structural support for the liquid cooling plate, preventing deformation or damage during use due to stress. Thicker reinforcing plates 20 (closer to 2 mm) typically have higher strength and rigidity, suitable for applications requiring greater loads or vibrations. The thickness of the reinforcing plate 20 also affects its heat exchange efficiency with the coolant. Within this thickness range, the reinforcing plate 20 provides sufficient heat dissipation area while maintaining good thermal conductivity. It should be noted that excessively thick reinforcing plates 20 may increase thermal resistance, thus affecting heat dissipation. Therefore, when selecting the thickness of the reinforcing plate 20, both heat dissipation requirements and structural strength must be considered. Furthermore, the thickness of the reinforcing plate 20 directly affects the weight and manufacturing cost of the liquid cooling plate. Thicker reinforcing plates 20 increase the weight of the liquid cooling plate and may increase material costs. Under the premise of meeting structural strength and heat dissipation performance requirements, selecting thinner reinforcing plates 20 (closer to 1.2 mm) helps reduce the weight and cost of the liquid cooling plate. In this application, H can be set to 1.2mm, 1.4mm or 2mm, etc.

[0041] In one embodiment, the contact surface between the reinforcing plate 20 and the support member 30 extends along the width direction of the body 10 by a length L1, and the reinforcing plate 20 extends along the width direction of the body 10 by a length L2, where 4% ≤ L1:L2 ≤ 7%. Within this ratio range, the contact area between the reinforcing plate 20 and the support member 30 is moderate, ensuring the structure remains stable under load. An appropriate contact area provides sufficient friction to prevent slippage or displacement of the structure under load. By controlling the ratio of L1 to L2, the amount of material used can be optimized while ensuring structural strength, avoiding excessive material waste and reducing manufacturing costs. Simultaneously, at this ratio, the reinforcing plate 20 can effectively distribute the load borne by the support member 30, enabling the overall structure to maintain good stability and safety even under large loads. In this application, the value of L1:L2 can be 4%, 5%, or 7%.

[0042] In one embodiment, the contact surface between the reinforcing plate 20 and the support member 30 extends along the length of the body 10 by a length of L3, and the reinforcing plate 20 extends along the length of the body 10 by a length of L4, where 9% ≤ L3: L4 ≤ 15%. Within this ratio range, sufficient contact between the reinforcing plate 20 and the support member 30 in the length direction provides better longitudinal support, contributing to enhanced longitudinal stability of the entire structure. Simultaneously, a suitable L3 to L4 ratio helps to distribute stress more evenly between the reinforcing plate 20 and the support member 30, reducing local stress concentration and thus improving the overall strength and durability of the structure. Furthermore, by ensuring sufficient contact area between the reinforcing plate 20 and the support member 30 in the length direction, the structure can withstand greater longitudinal loads, enhancing its overall load-bearing capacity.

[0043] Furthermore, structural deformation is better controlled under stress because the reinforcing plate 20 provides stronger constraint in the length direction, reducing unnecessary deformation. Simultaneously, by precisely controlling the ratio of L3 to L4, material usage can be optimized while ensuring structural performance, reducing unnecessary waste. Within this ratio range, the connection design between the reinforcing plate 20 and the support member 30 can be simpler and more direct, reducing the complexity of the connection and manufacturing costs. The above structural design makes installation, disassembly, and routine maintenance easier because the connection between the reinforcing plate 20 and the support member 30 is more intuitive and easier to operate. In this application, the value of L3:L4 can be 9%, 10%, or 15%.

[0044] In one embodiment, the contact surface between the reinforcing plate 20 and the support member 30 extends along the width direction of the body 10 by a length L1, where 30mm ≤ L1 ≤ 50mm. Within this range, the contact surface L1 is sufficiently large to provide adequate contact area to ensure a robust connection between the reinforcing plate 20 and the support member 30. This robust connection is crucial for improving the overall strength and stability of the structure. Simultaneously, a suitable L1 dimension helps to distribute stress more evenly between the reinforcing plate 20 and the support member 30, reducing stress concentration and thus improving the durability of the structure. Furthermore, a larger contact area enhances the interaction between the reinforcing plate 20 and the support member 30, making the structure more stable under external forces and less prone to deformation or damage.

[0045] Furthermore, standardized L1 dimensions help simplify the manufacturing process, as standardized tools and molds can be used to produce these components, thereby improving production efficiency and reducing costs. Appropriate L1 dimensions also make the installation and removal of the reinforcing plate 20 and support member 30 easier, while facilitating future maintenance and inspection. Moreover, by precisely controlling the L1 dimension, material usage can be optimized while ensuring structural performance, reducing unnecessary waste. This range of L1 dimensions can adapt to various application scenarios, providing suitable combinations of reinforcing plate 20 and support member 30 for both light and heavy-duty structures. In this application, the value of L1 can be 30mm, 40mm, or 50mm.

[0046] In one embodiment, the contact surface between the reinforcing plate 20 and the support member 30 extends along the length of the body 10 by a length of L3, where 100mm ≤ L3 ≤ 160mm. Enhanced structural stability: An appropriate L3 length allows the reinforcing plate 20 to more effectively distribute the load borne by the support member 30, avoiding stress concentration and thus improving the overall structural stability. By increasing the contact area and extension length, the reinforcing plate 20 can better resist external pressure or tension, preventing deformation or bending of the support member 30. Standardized dimensions: The standardization of the L3 length makes the installation of the reinforcing plate 20 and the support member 30 more convenient, reducing adjustment and adaptation work during installation. Furthermore, standardized dimensions mean that when maintenance or replacement is needed, a suitable reinforcing plate 20 can be found more quickly, reducing maintenance costs and time. A reasonable L3 length design can fully utilize material properties, avoid material waste, and reduce production costs. Standardized reinforcing plate 20 dimensions facilitate production automation and large-scale production, thereby improving production efficiency. In this application, the value of L3 can be 100mm, 130mm, or 160mm.

[0047] In one embodiment, the reinforcing plate 20 has a protrusion 21 facing the body 10, and the side of the protrusion 21 near the body 10 is used to connect with the body 10. This arrangement allows for a sufficient gap between the reinforcing plate 20 and the body 10 to prevent the reinforcing plate 20 from contacting the body 10 and damaging the structure of the body 10 when subjected to external impact, thereby protecting the structure of the body 10.

[0048] In one embodiment, the support member 30 includes a first segment 31, a second segment 32, a third segment 33, a fourth segment 34, and a fifth segment 35 that are sequentially connected and bent in sequence; wherein the first segment 31 and the fifth segment 35 are connected, and a cavity is formed between the first segment 31, the second segment 32, the third segment 33, and the fourth segment 34. This arrangement can improve the structural strength of the support member 30 to meet the usage requirements of the device.

[0049] In one embodiment, the support member 30 is integrally formed by roll forming. By setting the above structure, the processing difficulty of the component can be reduced. The above structure can be processed using only a single steel beam. This not only saves processing materials and reduces the processing cost of the device, but also improves the processing efficiency of the device, which is conducive to the mass production of the device.

[0050] In one embodiment, the body 10 includes: a first plate 13 having an outlet 131 and an inlet 132; and a second plate 14 having a flow channel 141. The first plate 13 covers the second plate 14, so that the outlet 131, the inlet 132, and the flow channel 141 are interconnected. The side of the first plate 13 facing away from the second plate 14 forms a first plate surface 11, and the side of the second plate 14 facing away from the first plate 13 forms a second plate surface 12. The combination of the first plate 13 and the second plate 14 forms a compact and small-sized liquid transfer device. This design not only saves space but also improves the overall aesthetics of the system. Due to the close connection between the outlet 131, the inlet 132, and the flow channel 141, liquid can be transferred quickly and efficiently within the system. This is particularly important for applications requiring rapid response or efficient liquid transfer. Because the first plate 13 and the second plate 14 are separable, they can be easily disassembled and reinstalled when the system needs maintenance or cleaning, reducing maintenance difficulty and cost. This body structure 10 can be applied to a variety of different liquid transfer systems, such as cooling systems, lubrication systems, and chemical treatment systems. By adjusting the size and shape of the outlet 131, inlet 132, and flow channel 141, the needs of different application scenarios can be met.

[0051] In this application, the flow channel 141 is U-shaped. U-shaped liquid cooling plates typically employ a double-layer flow channel design, achieving one layer for temperature uniformity and the other for heat dissipation. This design allows the coolant to make more thorough contact with the heat-generating elements within the flow channel, thereby improving heat dissipation efficiency. The U-shaped flow channel design increases the contact area between the coolant and the heat-generating elements, thus improving heat exchange efficiency. This helps to quickly reduce the temperature of the heat-generating elements, ensuring stable equipment operation. Optimizing the flow channel structure: By rationally designing the shape and size of the U-shaped flow channel, the flow distribution of the coolant within the channel can be made more uniform. This helps to avoid localized overheating and coolant waste, improving the efficiency of the entire liquid cooling system. Furthermore, the U-shaped flow channel design can reduce the flow resistance of the coolant, allowing it to flow more smoothly, thereby improving heat dissipation efficiency.

[0052] Furthermore, the U-shaped liquid cooling plate design makes its structure more compact, providing a larger heat dissipation area within a limited space. This is especially important for space-constrained electronic devices, servers, and other equipment. The compact structure also makes the U-shaped liquid cooling plate easier to integrate with other components, simplifying system design and installation. The wide environmental adaptability of the U-shaped liquid cooling plate allows it to maintain stable heat dissipation performance under various operating conditions. Due to its excellent isothermal properties, variable heat flux density, and reversible heat flow direction, the U-shaped liquid cooling plate maintains stable heat dissipation during long-term use, extending the equipment's lifespan. U-shaped liquid cooling plates typically employ a modular design, making them easy to disassemble and reinstall. This helps simplify maintenance and cleaning processes, reducing maintenance costs. The U-shaped flow channel design allows the coolant to make more thorough contact with the heat-generating elements, making it easier to remove accumulated dirt and heat, thus keeping the system clean and operating efficiently.

[0053] Secondly, embodiments of the present invention provide a battery pack, which includes the aforementioned liquid cooling plate.

[0054] By applying the technical solution of this utility model, the body 10, the reinforcing plate 20 and the support member 30 are stacked in sequence, and the side of the support member 30 closest to the second plate surface 12 is at least partially connected to the reinforcing plate 20. In this way, when the body 10 is subjected to external pressure, the force can be transferred to the reinforcing plate 20 in a timely manner. At the same time, since the support member 30 is provided below the reinforcing plate 20, the probability of deformation of the body 10 when subjected to external force can be reduced, thereby improving the structural strength of the body 10 and making the body 10 less prone to deformation, so as to meet the usage requirements of the device.

[0055] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0056] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0057] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0058] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0059] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A liquid-cooled plate, characterized in that, The liquid cooling plate comprises, in sequence: a body having oppositely arranged first and second plate surfaces, the first plate surface being used for connecting with the battery module, the body being provided with a flow channel for conveying cooling medium; a reinforcing plate connected with the second plate surface; a support connected with the reinforcing plate at least partially on the side close to the second plate surface.

2. The liquid cold plate of claim 1, wherein, The liquid cooling plate comprises a plurality of reinforcing plates, which are arranged in the length direction of the body or in the width direction of the body.

3. The liquid cold plate of claim 2, wherein, The reinforcing plate has oppositely arranged first and second ends in the width direction of the body, the first ends of the plurality of reinforcing plates being connected with each other to form a first connecting section, and the second ends of the plurality of reinforcing plates being connected with each other to form a second connecting section.

4. The liquid cold plate of claim 3, wherein, The support is used for supporting the first connecting section and / or the second connecting section.

5. The liquid cold plate of claim 1, wherein, The reinforcing plate has an extension length in the width direction of the body, which is less than or equal to the width of the body.

6. The liquid cold plate of any of claims 1-5, wherein, The reinforcing plate has a thickness H, 1.2mm≤H≤2mm.

7. The liquid cold plate of any of claims 1-5, wherein, The reinforcing plate has a contact surface with the support, which has an extension length L1 in the width direction of the body, and the reinforcing plate has an extension length L2 in the width direction of the body, 4%≤L1:L2≤7%.

8. The liquid cold plate of any of claims 1-5, wherein, The reinforcing plate has a contact surface with the support, which has an extension length L3 in the length direction of the body, and the reinforcing plate has an extension length L4 in the length direction of the body, 9%≤L3:L4≤15%.

9. The liquid cold plate of claim 7, wherein, The reinforcing plate has a contact surface with the support, which has an extension length L1 in the width direction of the body, 30mm≤L1≤50mm.

10. The liquid cold plate of claim 8, wherein, The reinforcing plate has a contact surface with the support, which has an extension length L3 in the length direction of the body, 100mm≤L3≤160mm.

11. The liquid cold plate of any of claims 1-5, wherein, The reinforcing plate has a protruding portion arranged towards the body, which is used for connecting with the body on the side close to the body.

12. The liquid cold plate of any one of claims 1-5, wherein, The support comprises, in sequence, a first section, a second section, a third section, a fourth section and a fifth section, which are connected in sequence and bent in sequence, wherein the first section is connected with the fifth section, and a cavity is formed between the first section, the second section, the third section and the fourth section.

13. The liquid cold plate of claim 12, wherein, The support is integrally formed by rolling.

14. The liquid cold plate of any one of claims 1-5, wherein, The body comprises: a first plate body having a liquid outlet and a liquid inlet; a second plate body having the flow channel, the first plate body being arranged on the second plate body so that the liquid outlet, the liquid inlet and the flow channel are in communication with each other, the side of the first plate body away from the second plate body forming the first plate surface, and the side of the second plate body away from the first plate body forming the second plate surface.

15. A battery pack, characterized by The battery pack comprises the liquid cooling plate according to any one of claims 1-14.

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