Cooling plate, box structure, battery pack and electric device

Abstract

The application relates to the new energy technology field, in particular to a cooling plate, a box structure, a battery pack and an electric equipment. The cooling plate comprises a substrate, a flow channel assembly and an anticorrosion assembly, the flow channel assembly is connected with the substrate, and a cooling flow channel is formed between the flow channel assembly and the substrate. The anticorrosion assembly is arranged on the side of the flow channel assembly away from the substrate. The cooling plate, the box structure, the battery pack and the electric equipment provided by the application improve the corrosion resistance of the cooling plate and reduce the possibility of corrosion of the cooling plate.

Description

Technical Field

[0001] This application relates to the field of new energy technology, and in particular to a cooling plate, a housing structure, a battery pack, and electrical equipment. Background Technology

[0002] Batteries generate heat during charging and discharging, causing the internal temperature to rise. Excessive temperature accelerates battery capacity decay and reduces cycle life. Therefore, battery cooling is necessary.

[0003] In the prior art, a cold plate is set on the battery. The cold plate includes a substrate and a flow channel plate connected to the substrate. The flow channel plate has flow channels, and coolant flows in the flow channels. The coolant is used to carry away the heat of the battery for heat exchange, thereby reducing the temperature of the battery.

[0004] However, existing cold-rolled steel sheets are prone to corrosion. Utility Model Content

[0005] This application provides a cooling plate, a housing structure, a battery pack, and electrical equipment, which improves the corrosion resistance of the cooling plate and reduces the possibility of corrosion.

[0006] In a first aspect, the cooling plate provided in this application includes: a substrate, a flow channel assembly, and a corrosion-resistant assembly, wherein the flow channel assembly is connected to the substrate, and a cooling flow channel is formed between the flow channel assembly and the substrate.

[0007] The corrosion-resistant component is located on the side of the flow channel assembly facing away from the substrate.

[0008] In one possible implementation, the cooling plate and anti-corrosion component provided in this application include: a first anti-corrosion layer disposed on the side of the flow channel assembly facing away from the substrate; and a second anti-corrosion layer disposed on the side of the first anti-corrosion layer facing away from the flow channel assembly.

[0009] In one possible implementation, the cooling plate provided in this application has an electrophoretic coating layer as the first anti-corrosion layer.

[0010] In one possible implementation, the cooling plate provided in this application has a first anti-corrosion layer with a thickness greater than or equal to 30 micrometers.

[0011] In one possible implementation, the cooling plate provided in this application has a second anti-corrosion layer that is a powder coating layer.

[0012] In one possible implementation, the cooling plate provided in this application has a second anti-corrosion layer with a thickness greater than or equal to 80 micrometers.

[0013] In one possible implementation, the cooling plate provided in this application further includes a protective layer disposed on the side of the second anti-corrosion layer opposite to the first anti-corrosion layer.

[0014] In one possible implementation, the cooling plate provided in this application has a PVC coating layer as its protective layer.

[0015] In one possible implementation, the cooling plate provided in this application has a protective layer with a thickness of 1 mm to 1.5 mm.

[0016] In one possible implementation, the cooling plate provided in this application includes a first flow channel plate and a second flow channel plate. The first flow channel plate is connected to a substrate, and the second flow channel plate is located between the first flow channel plate and the first anti-corrosion layer. The cooling channel is located between the first flow channel plate and the substrate.

[0017] In one possible implementation, the cooling plate provided in this application has an aluminum plate as the first flow channel plate and a galvanized steel plate as the second flow channel plate.

[0018] In one possible implementation, the cooling plate provided in this application has an aluminum plate as its substrate.

[0019] In one possible implementation, the cooling plate provided in this application further includes a connector assembly, which includes a first connector and a second connector. Both the first connector and the second connector are disposed on the substrate and are in communication with the cooling channel.

[0020] Secondly, the box structure provided in this application includes a box structure body and any of the cooling plates provided in the first aspect above, which are disposed on the box structure body.

[0021] In one possible implementation, the box structure provided in this application includes a side plate, and the side plate and the substrate of the cooling plate are spliced ​​together by friction stir welding.

[0022] In one possible implementation, the box structure provided in this application has a support member inside the side panel.

[0023] Thirdly, the battery pack provided in this application includes a battery pack body and any of the housing structures provided in the second aspect described above disposed on the battery pack body.

[0024] Fourthly, the electrical equipment provided in this application includes an electrical equipment body and a battery pack provided in any of the above-mentioned third aspects disposed on the electrical equipment body.

[0025] The cooling plate, housing structure, battery pack, and electrical equipment provided in this application include a cooling plate comprising a substrate, a flow channel assembly, and a corrosion-resistant component. The flow channel assembly is connected to the substrate, and a cooling channel is formed between the flow channel assembly and the substrate. A cooling medium is injected into the cooling channel to absorb and conduct heat, thereby reducing the temperature of the substrate and the flow channel assembly. The corrosion-resistant component is located on the side of the flow channel assembly facing away from the substrate, acting as an isolation layer to prevent external corrosive substances from chemically reacting with the external surface of the flow channel assembly. This improves the corrosion resistance of the cooling plate and reduces the likelihood of corrosion. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the cooling plate provided in an embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the box structure provided in the embodiments of this application;

[0029] Figure 3 for Figure 2 A schematic diagram of the internal structure of the joint assembly and side plate.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100-substrate;

[0032] 200 - Flow channel assembly; 210 - Cooling flow channel; 201 - First flow channel plate; 202 - Second flow channel plate;

[0033] 300 - Anti-corrosion component; 310 - First anti-corrosion layer; 320 - Second anti-corrosion layer;

[0034] 400 - Protective layer;

[0035] 500 - Connector assembly; 510 - First connector; 520 - Second connector;

[0036] 600 - Side plate; 610 - Supporting component.

[0037] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0038] First, those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0039] Secondly, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] Furthermore, it should be noted that in the description of this application, the terms "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and 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. Therefore, they should not be construed as limitations on this application.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0042] As shown in the background section, in the prior art, a cold plate is placed on the battery. The cold plate includes a substrate and a flow channel plate connected to the substrate. The flow channel plate has flow channels containing flowing coolant, which is used to remove heat from the battery for heat exchange, thereby reducing the battery temperature. However, the outer surface of the flow channel plate (that is, the side of the flow channel plate facing away from the substrate) is prone to chemical reaction with external corrosive substances, resulting in corrosion of the flow channel plate, i.e., the cold plate is prone to corrosion.

[0043] Based on this, the cooling plate, housing structure, battery pack, and electrical equipment provided in this application include a cooling plate comprising a substrate, a flow channel assembly, and an anti-corrosion component. The flow channel assembly is connected to the substrate, and a cooling flow channel is formed between the flow channel assembly and the substrate. A cooling medium is injected into the cooling flow channel to absorb and conduct heat, thereby reducing the temperature of the substrate and the flow channel assembly. The anti-corrosion component is located on the side of the flow channel assembly facing away from the substrate, serving as an isolation layer to prevent external corrosive substances from chemically reacting with the external surface of the flow channel assembly. This improves the corrosion resistance of the cooling plate and reduces the likelihood of corrosion.

[0044] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0045] Reference Figure 1 As shown, the cooling plate provided in this application includes: a substrate 100, a flow channel assembly 200 and an anti-corrosion assembly 300. The flow channel assembly 200 is connected to the substrate 100, and a cooling flow channel 210 is formed between the flow channel assembly 200 and the substrate 100.

[0046] The anti-corrosion component 300 is disposed on the side of the flow channel component 200 opposite to the substrate 100.

[0047] It should be noted that the cooling plates provided in the embodiments of this application include, but are not limited to, liquid cooling plates and direct cooling plates.

[0048] Specifically, a cooling channel 210 is provided between the flow channel assembly 200 and the substrate 100. A cooling medium is injected into the cooling channel 210 to absorb and conduct heat, thereby reducing the temperature of the substrate 100 and the flow channel assembly 200. In practical implementation, a suitable cooling medium, such as water, coolant, or air, can be selected according to requirements, and its flowability and heat capacity in the cooling channel 210 must be ensured.

[0049] Understandably, the substrate 100 provides rigid support for the entire cooling plate, improving the structural stability of the flow channel assembly 200 and preventing deformation. Through close contact with the flow channel assembly 200, the substrate 100 forms a closed cooling flow channel 210, utilizing its high thermal conductivity to quickly absorb battery heat and conduct it to the cooling medium, thereby achieving efficient heat dissipation and uniform temperature distribution. Thus, by setting the substrate 100, it can serve the functions of mechanical support, thermal conduction, and sealing.

[0050] In practice, the substrate 100 can be made of a high thermal conductivity metal material (such as aluminum alloy) through stamping or machining processes, and the thickness of the substrate 100 can be specifically designed according to heat dissipation requirements and mechanical strength requirements.

[0051] It should be noted that the surface of the substrate 100 and the flow channel assembly 200 can be reliably connected by means of brazing, laser welding or bolt fastening to ensure the sealing of the cooling flow channel 210. The side of the substrate 100 facing away from the flow channel assembly 200 can be provided with a mounting interface (such as a threaded hole or snap-fit ​​structure) for connecting the battery module as needed, and undergoes surface treatment (such as anodizing) to enhance corrosion resistance.

[0052] The flow channel assembly 200 serves as a heat dissipation structure for the cooling plate. It can provide a directional flow path for the cooling medium through the cooling flow channel 210 formed together with the substrate 100, thereby achieving efficient heat exchange. In a specific implementation, a groove can be provided on the flow channel assembly 200, with the groove opening facing the substrate 100, so as to form a cooling flow channel 210 between the flow channel assembly 200 and the substrate 100.

[0053] For example, the shape of the cooling channel 210 can be serpentine, wavy, or mesh, or other shapes, as long as it can improve the heat exchange efficiency. This application embodiment does not impose too many restrictions on this.

[0054] By providing an anti-corrosion component 300 on the side of the flow channel assembly 200 away from the substrate 100, that is, by directly covering the side of the flow channel assembly 200 exposed to the external environment, an isolation function can be achieved to prevent external corrosive substances from reacting chemically with the external surface of the flow channel assembly 200, thereby improving the corrosion resistance of the cooling plate and reducing the possibility of corrosion of the cooling plate.

[0055] In some embodiments, refer to Figure 1 As shown, the anti-corrosion component 300 includes: a first anti-corrosion layer 310 disposed on the side of the flow channel component 200 opposite to the substrate 100; and a second anti-corrosion layer 320 disposed on the side of the first anti-corrosion layer 310 opposite to the flow channel component 200.

[0056] The anti-corrosion component 300 includes a first anti-corrosion layer 310 and a second anti-corrosion layer 320. The first anti-corrosion layer 310 is disposed on the side of the flow channel component 200 away from the substrate 100, that is, the first anti-corrosion layer 310 directly covers the side of the flow channel component 200 exposed to the external environment, which can play a direct isolation role and prevent external corrosive substances from chemically reacting with the external materials of the flow channel component 200.

[0057] The second anti-corrosion layer 320 is disposed on the side of the first anti-corrosion layer 310 facing away from the flow channel assembly 200, and the second anti-corrosion layer 320 further enhances the isolation effect. The first anti-corrosion layer 310 and the second anti-corrosion layer 320 work together to form a double barrier, which can effectively prevent corrosive factors in the external environment (such as moisture, chemicals, salt, etc.) from contacting the external surface of the flow channel assembly 200, thereby improving the corrosion resistance of the cooling plate and reducing the possibility of corrosion of the cooling plate.

[0058] In some embodiments, refer to Figure 1 As shown, the first anti-corrosion layer 310 is an electrophoretic coating layer.

[0059] It should be noted that electrophoresis, also known as electrophoretic coating or electrophoretic deposition, is a coating technology that uses an electric field to uniformly deposit charged paint particles onto the surface of a conductive substrate. In practice, electrophoretic coatings can be composed of corrosion-resistant resins and pigments, effectively resisting the erosion of moisture, chemicals, and other corrosive media, thereby protecting the flow channel assembly 200.

[0060] Specifically, by employing an electrophoretic process, a uniform electrophoretic coating layer can be formed on the surface of the flow channel assembly 200, thereby improving the corrosion resistance of the flow channel assembly 200 and reducing the possibility of corrosion. The electrophoretic coating layer also has strong adhesion, firmly adhering to the surface of the flow channel assembly 200, thus improving the durability of the first anti-corrosion layer 310, and making it less prone to peeling off even under mechanical stress or environmental changes.

[0061] In some embodiments, refer to Figure 1 As shown, the thickness of the first anti-corrosion layer 310 is greater than or equal to 30 micrometers.

[0062] It should be noted that the thickness of the first anti-corrosion layer 310 is greater than or equal to 30 micrometers, which can provide a good barrier effect and prevent corrosive media (such as moisture, salt and chemicals) from penetrating to the surface of the flow channel component 200, thereby improving the overall corrosion resistance.

[0063] It should also be noted that the thickness of the first anti-corrosion layer 310 is greater than or equal to 30 micrometers, which makes it easier to achieve uniform coverage and improves the reliability of the first anti-corrosion layer 310.

[0064] In some embodiments, refer to Figure 1 As shown, the second anti-corrosion layer 320 is a powder coating layer.

[0065] It should be noted that powder spraying, also known as powder coating or powder spraying, is a coating technology in which powdered coating is sprayed onto the surface of a workpiece using electrostatic spraying equipment, and then the powder is melted and cured into a uniform coating by heating.

[0066] Specifically, by using a powder coating process, a dense protective film (i.e., a powder coating layer) can be formed on the surface of the first anti-corrosion layer 310. The powder coating layer can prevent the penetration of moisture, chemicals and other corrosive media, further improving corrosion resistance.

[0067] It should also be noted that the powder coating layer has high hardness and toughness, which can resist wear, scratches and impacts, thus protecting the flow channel component 200.

[0068] In some embodiments, refer to Figure 1 As shown, the thickness of the second anti-corrosion layer 320 is greater than or equal to 80 micrometers.

[0069] It should be noted that the thickness of the second anti-corrosion layer 320 is greater than or equal to 80 micrometers, which can form a strong and dense barrier that effectively prevents the penetration of corrosive media (such as moisture, salt and chemicals), thereby improving corrosion resistance.

[0070] It should also be noted that the thickness of the second anti-corrosion layer 320 is greater than or equal to 80 micrometers, which can better achieve uniform coverage and improve the reliability of the second anti-corrosion layer 320.

[0071] In some embodiments, refer to Figure 1 As shown, the cooling plate also includes a protective layer 400, which is disposed on the side of the second anti-corrosion layer 320 opposite to the first anti-corrosion layer 310.

[0072] Specifically, by setting a protective layer 400 on the second anti-corrosion layer 320, the protective layer 400 can provide additional physical protection for the cooling plate, preventing scratches, collisions and other mechanical damage, thus improving the safety of the cooling plate.

[0073] In some embodiments, refer to Figure 1 As shown, the protective layer 400 is a PVC coating layer.

[0074] It should be noted that PVC material has good flexibility and elasticity, which allows the PVC coating layer to absorb and disperse energy when subjected to impact, thereby reducing damage to the cooling plate caused by stone impacts or impacts from other hard objects.

[0075] In some embodiments, refer to Figure 1As shown, the thickness of the protective layer 400 is 1 mm to 1.5 mm.

[0076] It should be noted that the protective layer 400 with a thickness of 1 mm to 1.5 mm can provide good physical protection, effectively absorb and disperse impact energy, thereby resisting stone blows, scratches and other mechanical impacts, and reducing damage to the second anti-corrosion layer 320, the first anti-corrosion layer 310 and the flow channel assembly 200.

[0077] The protective layer 400 has a thickness of 1 mm to 1.5 mm, which can also increase the wear resistance and impact resistance of the protective layer 400, maintain its protective performance during long-term use, and extend the service life of the cooling plate.

[0078] In some embodiments, refer to Figure 1 As shown, the flow channel assembly 200 includes a first flow channel plate 201 and a second flow channel plate 202. The first flow channel plate 201 is connected to the substrate 100, the second flow channel plate 202 is located between the first flow channel plate 201 and the first anti-corrosion layer 310, and the cooling flow channel 210 is located between the first flow channel plate 201 and the substrate 100.

[0079] Specifically, the first flow channel plate 201 is directly connected to the substrate 100, and the cooling flow channel 210 is located between the first flow channel plate 201 and the substrate 100, which helps to improve the heat conduction efficiency so that heat can be quickly conducted from the substrate 100 and can be more effectively removed through the cooling flow channel 210.

[0080] The second flow channel plate 202 is disposed between the first flow channel plate 201 and the first anti-corrosion layer 310. The second flow channel plate 202 provides additional structural support, which can help maintain the overall shape and stability of the flow channel assembly 200 and prevent deformation or displacement during operation.

[0081] In some embodiments, refer to Figure 1 As shown, the first flow channel plate 201 is an aluminum plate, and the second flow channel plate 202 is a galvanized steel plate.

[0082] It should be noted that aluminum has a light weight and a good strength-to-weight ratio, and using an aluminum plate as the first flow channel plate 201 can reduce the weight of the flow channel assembly 200.

[0083] It should also be noted that steel itself has high strength and durability, and galvanizing further enhances its corrosion resistance. The galvanized steel sheet, serving as the second flow channel plate 202, provides additional mechanical strength and structural support. Thus, the use of aluminum and galvanized steel sheets to jointly form the flow channel assembly 200 combines the lightweight properties of aluminum with the high strength of steel, reducing the weight of the cooling plate and lowering costs.

[0084] In practice, aluminum sheets and galvanized steel sheets can be combined using a composite rolling process to form steel-aluminum composite plates. The composite rolling process can be divided into three stages: surface pretreatment, cold rolling, and heat treatment. Surface pretreatment typically involves etching to remove oxide films, oil, and dirt from the surface. Heat treatment aims to enhance atomic diffusion at the bonding surface, increase the actual composite area, and improve the bonding strength to meet the performance requirements for further processing or use.

[0085] For example, the thickness of the flow channel assembly 200 can be 1.9 mm, 2 mm or 2.1 mm, wherein the thickness of the first flow channel plate 201 can be 1.1 mm, 1.2 mm or 1.3 mm, and the thickness of the second flow channel plate 202 can be 0.7 mm, 0.8 mm or 0.9 mm. This application embodiment does not impose too many restrictions on this.

[0086] In some embodiments, refer to Figure 1 As shown, substrate 100 is an aluminum plate.

[0087] Understandably, aluminum has a high thermal conductivity, which can quickly conduct heat. Using an aluminum plate as the substrate 100 can quickly absorb the battery heat and conduct it to the cooling medium, thus improving heat dissipation efficiency.

[0088] For example, the substrate 100 can be made of 3003 aluminum alloy, and the thickness of the substrate 100 can be 1.1 mm, 1.2 mm or 1.3 mm. This application embodiment does not impose too many restrictions on this.

[0089] In some embodiments, refer to Figure 1 and Figure 2 As shown, the cooling plate also includes a connector assembly 500, which includes a first connector 510 and a second connector 520. Both the first connector 510 and the second connector 520 are disposed on the substrate 100 and are connected to the cooling channel 210.

[0090] It should be noted that the first connector 510 and the second connector 520 can be used as the inlet and outlet of the coolant, respectively, so that the coolant can effectively flow into and out of the cooling channel 210 of the cooling plate, thereby maintaining the circulation of the coolant in the cooling channel 210 and achieving continuous and effective heat exchange.

[0091] This application also provides a box structure, including a box structure body and a cooling plate disposed on the box structure body.

[0092] The specific structure and working method of the cooling plate have been described in detail in the above embodiments, and will not be repeated here.

[0093] In some embodiments, refer to Figure 2 and Figure 3As shown, the main body of the box structure includes a side plate 600, which is joined to the base plate 100 of the cooling plate by friction stir welding.

[0094] It should be noted that friction stir welding is a solid-state welding process that uses mechanical stirring to induce plastic deformation in the welding area, thereby achieving material bonding. The side plate 600 and the base plate 100 are joined by friction stir welding, which can improve the connection strength between the side plate 600 and the base plate 100.

[0095] In some embodiments, refer to Figure 3 As shown, a support member 610 is provided inside the side plate 600.

[0096] For example, the support member 610 can be a reinforcing rib. By providing a reinforcing rib in the side plate 600, the thickness of the side plate 600 can be increased, providing support for the side plate 600, thereby improving the bending and torsional strength of the side plate 600, enabling the box to better withstand external loads and pressures, and reducing deformation.

[0097] By adding reinforcing ribs, the rigidity of the side plates is increased by 600, making the enclosure more stable under vibration or impact conditions.

[0098] It should be noted that the side plate 600 can be made of 6061 aluminum alloy extruded profile welded together. The reinforcing ribs can be arranged horizontally in the side plate 600, or they can be arranged diagonally, or they can be arranged along the height direction of the side plate 600. This application embodiment does not impose too many restrictions on this.

[0099] This application also provides a battery pack, including a battery pack body and a housing structure disposed on the battery pack body.

[0100] This application also provides an electrical device, including an electrical device body and a battery pack disposed on the electrical device body.

[0101] It should be noted that the electrical equipment provided in the embodiments of this application includes, but is not limited to, household appliances such as electric vehicles, vacuum cleaners and robot vacuum cleaners, and industrial equipment such as automated robots and sensors.

[0102] Those skilled in the art will understand that the cooling plate, housing structure, battery pack, and electrical equipment provided in this application include a cooling plate comprising a substrate 100, a flow channel assembly 200, and an anti-corrosion assembly 300. The flow channel assembly 200 is connected to the substrate 100, and a cooling flow channel 210 is provided between the flow channel assembly 200 and the substrate 100. A cooling medium is injected into the cooling flow channel 210 to absorb and conduct heat, thereby reducing the temperature of the substrate 100 and the flow channel assembly 200. The anti-corrosion assembly 300 is disposed on the side of the flow channel assembly 200 facing away from the substrate 100, serving as an isolation layer to prevent external corrosive substances from chemically reacting with the external surface of the flow channel assembly 200, thereby improving the corrosion resistance of the cooling plate and reducing the possibility of corrosion.

[0103] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0104] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0105] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A cooling plate, characterized in that, include: substrate(100); A flow channel assembly (200) is connected to the substrate (100), and a cooling flow channel (210) is formed between the flow channel assembly (200) and the substrate (100). A corrosion-resistant component (300) is disposed on the side of the flow channel assembly (200) facing away from the substrate (100).

2. The cooling plate according to claim 1, characterized in that, The corrosion-resistant component (300) includes: A first anti-corrosion layer (310) is disposed on the side of the flow channel assembly (200) facing away from the substrate (100); The second anti-corrosion layer (320) is disposed on the side of the first anti-corrosion layer (310) facing away from the flow channel assembly (200).

3. The cooling plate according to claim 2, characterized in that, The first anti-corrosion layer (310) is an electrophoretic coating layer.

4. The cooling plate according to claim 3, characterized in that, The thickness of the first anti-corrosion layer (310) is greater than or equal to 30 micrometers.

5. The cooling plate according to claim 2, characterized in that, The second anti-corrosion layer (320) is a powder coating layer.

6. The cooling plate according to claim 5, characterized in that, The thickness of the second anti-corrosion layer (320) is greater than or equal to 80 micrometers.

7. The cooling plate according to any one of claims 2 to 6, characterized in that, It also includes a protective layer (400) disposed on the side of the second anti-corrosion layer (320) opposite to the first anti-corrosion layer (310).

8. The cooling plate according to claim 7, characterized in that, The protective layer (400) is a PVC coating layer.

9. The cooling plate according to claim 8, characterized in that, The thickness of the protective layer (400) is 1 mm to 1.5 mm.

10. The cooling plate according to any one of claims 2 to 6, characterized in that, The flow channel assembly (200) includes a first flow channel plate (201) and a second flow channel plate (202). The first flow channel plate (201) is connected to the substrate (100), and the second flow channel plate (202) is located between the first flow channel plate (201) and the first anti-corrosion layer (310). The cooling flow channel (210) is located between the first flow channel plate (201) and the substrate (100).

11. The cooling plate according to claim 10, characterized in that, The first flow channel plate (201) is an aluminum plate, and the second flow channel plate (202) is a galvanized steel plate.

12. The cooling plate according to any one of claims 1 to 6, characterized in that, The substrate (100) is an aluminum plate.

13. The cooling plate according to any one of claims 1 to 6, characterized in that, It also includes a connector assembly (500), which includes a first connector (510) and a second connector (520). The first connector (510) and the second connector (520) are both disposed on the substrate (100) and are both connected to the cooling channel (210).

14. A box structure, characterized in that, It includes a housing structure body and a cooling plate as described in any one of claims 1 to 13 disposed on the housing structure body.

15. The box structure according to claim 14, characterized in that, The main body of the box structure includes a side plate (600), which is joined to the base plate (100) of the cooling plate by friction stir welding.

16. The box structure according to claim 15, characterized in that, The side plate (600) is provided with a support member (610).

17. A battery pack, characterized in that, The battery pack body includes the housing structure as described in any one of claims 14 to 16, which is disposed on the battery pack body.

18. An electrical appliance, characterized in that, The device includes the electrical equipment body and the battery pack as described in claim 17, which is disposed on the electrical equipment body.

Images