Battery case, battery, and electric device

Abstract

The utility model provides a kind of battery box, battery and electric equipment, the battery box includes box and cooling plate, box includes the receiving space formed by frame and bottom plate, frame is equipped with air inlet and air outlet;Cooling plate is located in receiving space, is installed on bottom plate, multiple intercommunication passages are formed in cooling plate, intercommunication passage is communicated between air inlet and air outlet, cooling plate is set as installation battery module.In the cooling plate inside of the application embodiment, there are multiple intercommunication passages, when air enters intercommunication passage from air inlet, is discharged from air outlet, forms a complete air circulation system, carries away the heat generated when battery works.Cooling plate and bottom plate support battery module at the same time, realize the heat dissipation of battery module, ensure the temperature stability of box structure strength and battery box, prevent overheating from causing damage to battery.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a battery box, a battery, and an electrical device. Background Technology

[0002] With the rapid development of new energy vehicles, the heat dissipation problem of electric vehicle battery systems has received increasing attention. During charging and discharging, power batteries generate a large amount of heat, causing a significant increase in the temperature inside the battery pack. This not only seriously affects the performance and lifespan of the power battery, but may also lead to thermal runaway due to thermal disturbances exceeding the thermal stability of the materials, posing a safety hazard.

[0003] To address battery thermal runaway, related technologies typically incorporate liquid cooling plates or air-cooled channels at the bottom of the battery pack to aid heat dissipation and improve safety. However, installing liquid cooling plates at the bottom increases the number and weight of components, leading to increased battery pack cost and weight. Conversely, creating air-cooled channels on the bottom wall of the battery pack presents challenges in manufacturing and results in poor structural strength of the battery pack. Utility Model Content

[0004] The embodiments of this utility model provide a battery box, a battery, and an electrical device, which can improve the technical problems of high cost, heavy weight, and difficult processing of battery pack heat dissipation.

[0005] In a first aspect, embodiments of the present invention provide a battery box, comprising:

[0006] The enclosure includes a receiving space formed by a frame and a base plate, wherein the frame is provided with an air inlet and an air outlet;

[0007] A cooling plate is located within the receiving space and mounted on the base plate. The cooling plate has multiple connecting channels that connect the air inlet and the air outlet. The cooling plate is configured to mount the battery module.

[0008] In this embodiment, the frame of the housing is provided with an air inlet, an air outlet, an air inlet channel, and an air outlet channel. The cooling plate has multiple interconnected channels inside. When air enters the interconnected channels from the air inlet and exits from the air outlet, a complete air circulation system is formed, carrying away the heat generated during battery operation. The cooling plate and the base plate jointly support the battery module while simultaneously dissipating heat from the battery module, ensuring the structural strength of the housing and the temperature stability of the battery box, and preventing overheating damage to the battery.

[0009] In some embodiments, the cooling plate has a mounting groove configured to mount a battery module. By mounting the battery module within this groove, the battery module can be positioned quickly and accurately, significantly improving the efficiency of the entire assembly process. The large contact area between the cooling plate and the battery module facilitates rapid heat dissipation, extending battery life and improving its performance stability.

[0010] In some embodiments, the cooling plate includes a first sub-plate and a second sub-plate, both of which have multiple communicating channels formed therein. The first sub-plate and the second sub-plate are connected to form the mounting groove. The connection between the first sub-plate and the second sub-plate to form a mounting groove facilitates the installation and fixing of the battery module, simplifies the processing technology of the cooling plate, and increases the design flexibility of the cooling plate, enabling it to adapt to battery modules of different sizes.

[0011] In some embodiments, both the first sub-board and the second sub-board include a horizontal portion and a vertical portion, the vertical portion being perpendicularly connected to the horizontal portion, and the horizontal portion of the first sub-board abutting against the horizontal portion of the second sub-board. The vertical portion forms a constraint around the battery module, reducing the risk of the battery module shifting within the cooling plate due to bumps or vibrations during transportation. Both the vertical and horizontal portions are designed with multiple interconnected channels, which not only enhances the structural strength but also ensures more efficient heat dissipation. The large contact area between the vertical and horizontal portions and the battery module significantly improves the battery's cooling effect, thereby improving battery performance and lifespan.

[0012] In some embodiments, the cooling plate includes a first cold plate and two second cold plates. The first cold plate is connected between the two second cold plates to form the mounting groove, and the first cold plate is perpendicularly connected to the second cold plates. The first cold plate supports the battery module, providing stable support, while the second cold plates restrict the movement of the battery module, ensuring it remains fixed in the mounting groove. The first and second cold plates have a large contact area with the battery module. This design increases the heat dissipation contact surface, significantly improves the cooling effect of the battery, effectively prevents overheating, and extends its service life.

[0013] In some embodiments, the frame further includes an air inlet channel and an air outlet channel. The air inlet is connected to the air inlet channel, and the air outlet is connected to the air outlet channel. A connecting channel connects the air inlet channel and the air outlet channel. The air inlet and air inlet are connected, and the cooling plate has multiple connecting channels inside. When air enters the connecting channel from the air inlet through the air inlet channel, and then exits from the air outlet through the connecting channel and the air outlet channel, a complete air circulation system is formed. The long airflow path results in good heat dissipation. Utilizing the frame structure of the housing to form the air inlet and air outlet channels reduces the number of components and lowers the battery weight. This battery housing design not only enhances heat dissipation performance but also improves the cooling efficiency of the entire system by optimizing the internal airflow path.

[0014] In some embodiments, the frame is formed by a first side plate, a second side plate, a third side plate, and a fourth side plate. The first side plate and the third side plate are disposed opposite each other, and the second side plate and the fourth side plate are disposed opposite each other. The air inlet and the air outlet are disposed on the first side plate, and the connecting channel is located between the second side plate and the fourth side plate. The air inlet channel extends along the first side plate and the second side plate, and the air outlet channel extends along the first side plate and the fourth side plate. The air inlet channel extends from the first side plate to the second side plate, while the air outlet channel extends from the first side plate to the fourth side plate, both penetrating the corresponding side plate of the frame. This design extends the flow path of the cooling gas, thereby significantly improving the heat dissipation effect of the device and ensuring the stability and reliability of the equipment during long-term operation.

[0015] In some embodiments, an electrical mounting plate is further included, mounted on the base plate and located on one side of the cooling plate. Heat generated by the electrical components on the electrical mounting plate is transferred to the cooling plate through the base plate, achieving heat dissipation for the electrical components, ensuring their reliability, and improving battery reliability.

[0016] Secondly, embodiments of the present invention provide a battery, comprising:

[0017] Battery module;

[0018] In any of the above-described battery boxes, the battery module is located within the receiving space and mounted on the cooling plate.

[0019] In some embodiments, thermally conductive adhesive is provided between the battery module and the cooling plate. This adhesive ensures efficient heat transfer. It not only provides a physical connection but also, through its excellent thermal conductivity, allows the heat generated by the battery module to be rapidly transferred to the cooling plate, thereby significantly improving the battery's heat dissipation.

[0020] Thirdly, embodiments of this utility model provide an electrical device including the aforementioned battery.

[0021] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. 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 a battery provided in an embodiment of this utility model;

[0024] Figure 2 This is an exploded view of the battery provided in an embodiment of this utility model;

[0025] Figure 3 This is a three-dimensional schematic diagram of the battery cover removal provided in an embodiment of this utility model;

[0026] Figure 4 This is an exploded view of the first form of the cooling plate in the battery provided by an embodiment of this utility model;

[0027] Figure 5 This is a schematic diagram of the battery box provided in an embodiment of the present invention;

[0028] Figure 6 This is an exploded view of a second form of the cooling plate in a battery provided by an embodiment of this utility model;

[0029] Figure 7 This is a three-dimensional schematic diagram of the cooling plate in the battery provided in an embodiment of this utility model;

[0030] Figure 8 This is a cross-sectional perspective view of the battery provided in an embodiment of the present invention;

[0031] Figure 9 This is a three-dimensional schematic diagram of the battery box body with end plates removed, as improved by an embodiment of this utility model.

[0032] The labels in the attached diagram are:

[0033] 100. Battery box; 110. Box body; 111. Frame; 1111. First side panel; 1112. Second side panel; 1113. Third side panel; 1114. Fourth side panel; 112. Bottom plate; 113. Reception space; 114. Cover plate; 115. First plate; 116. Second plate; 120. Air inlet; 130. Air outlet; 140. Air inlet channel; 141. Outlet; 150. Air outlet channel; 151. Inlet; 160. Cooling plate; 161. Connecting channel; 162. Mounting slot; 163. First sub-plate; 164. Second sub-plate; 1631. Horizontal section; 1632. Vertical section; 165. First cold plate; 166. Second cold plate; 170. Electrical fixing plate; 180. Side beam;

[0034] 200. Battery; 210. Battery module; 220. CCS component. Detailed Implementation

[0035] 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 scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, 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.

[0036] The application of battery 200 includes three levels: battery 200 individual cells, battery 200 modules, and battery 200. A battery 200 module is formed by electrically connecting a certain number of battery 200 individual cells and placing them in a frame to protect them from external shocks, heat, vibration, etc. Battery 200 refers to the final state of a battery 200 system installed in an electric electrical device. In the embodiments of this application, battery 200 refers to a single physical module including one or more battery 200 individual cells to provide higher voltage and capacity. Battery 200 generally includes a battery case 100 for encapsulating one or more battery 200 individual cells. The battery case 100 can reduce the risk of liquids or other foreign matter affecting the charging or discharging of the battery 200 individual cells. A battery 200 individual generally includes an electrode assembly and an electrolyte; the electrode assembly consists of a positive electrode, a negative electrode, and a separator. Battery 200 individual cells mainly rely on the movement of metal ions between the positive and negative electrode plates to operate.

[0037] The following discussion will focus primarily on the structure of the battery box 100. It should be understood that some aspects of the embodiments described below are applicable to both cylindrical and prismatic batteries 200.

[0038] See Figure 1 , Figure 2 and Figure 3 This application provides a battery box 100 for mounting a battery module 210. The battery box 100 includes a housing 110 and a cooling plate 160 for effectively housing and protecting the battery module 210 while ensuring it maintains a suitable temperature during use. The housing 110 has a cubic structure and can be made of various materials such as aluminum alloy, steel, magnesium alloy, carbon fiber composite material, glass fiber composite material, and resin-based composite material. These material choices not only enhance the strength and durability of the housing 110 but also provide good thermal conductivity to aid in heat dissipation from the battery module 210. The housing 110 includes a frame 111 and a base plate 112, which together form a receiving space 113 for mounting the battery module 210. The frame 111 is designed as a hollow structure with openings at both ends to facilitate the installation and removal of the battery module 210, and the base plate 112 covers the opening at the bottom of the frame 111. To enhance structural integrity, the housing 110 also includes a cover plate 114, which covers the opening at the top of the frame 111, so that the bottom plate 112, the frame 111 and the cover plate 114 together form a sealed space, effectively protecting the internal battery module 210 from the influence of the external environment.

[0039] The cooling plate 160 is located within the housing space 113 and mounted on the base plate 112. The battery module 210 is mounted on the cooling plate 160. To achieve effective heat dissipation, the frame 111 is provided with an air inlet 120 and an air outlet 130. Multiple connecting channels 161 are formed inside the cooling plate 160, which connect the air inlet 120 and the air outlet 130 to form an air-cooling circulation. This ensures that the cooling plate 160 can maintain an ideal temperature during the operation of the battery module 210, thereby improving the performance and lifespan of the battery 200.

[0040] In the embodiments of this application, see Figure 1 , Figure 2 , Figure 3 and Figure 8The housing 110 has an air inlet 120, an air outlet 130, an air inlet channel 140, and an air outlet channel on its frame 111. The cooling plate 160 has multiple connecting channels 161 inside. When air enters the connecting channels 161 from the air inlet 120 and exits from the air outlet 130, a complete air circulation system is formed, carrying away the heat generated by the battery 200 during operation. The cooling plate 160 and the base plate 112 jointly support the battery module 210 while simultaneously dissipating heat from the battery module 210, ensuring the structural strength of the housing 110, the temperature stability of the battery box 100, and preventing overheating from damaging the battery 200.

[0041] In some embodiments, see Figure 5 , Figure 6 ,and Figure 7 The cooling plate 160 has a mounting groove 162 for mounting the battery module 210. Specifically, the mounting groove 162 is a U-shaped groove, which facilitates the quick insertion of the battery module 210 into the mounting groove 162 from one side or above, while reserving sufficient operating space for the electrical connections and wiring of the battery 200. The sidewall of the mounting groove 162 fits against the side of the battery module 210, providing stable lateral support and preventing the battery module 210 from shifting under vibration or other conditions.

[0042] The dimensions of the mounting slot 162 are designed to match the dimensions of the battery module 210 to ensure a secure installation of the battery module 210. Notably, the depth of the mounting slot 162 is designed to be less than the overall height of the battery module 210. This design not only facilitates the installation and removal of the battery module 210 but also effectively utilizes the space within the battery box 100.

[0043] In this embodiment, by installing the battery module 210 within the mounting slot 162, the mounting position of the battery module 210 can be quickly and accurately positioned, thereby significantly improving the efficiency of the entire assembly process. Because the contact area between the cooling plate 160 and the battery module 210 is large, it facilitates rapid heat dissipation, extends the lifespan of the battery 200, and improves its performance stability.

[0044] In other embodiments, the cooling plate 160 is a flat plate structure, and the battery module 210 is mounted on the flat plate.

[0045] In some embodiments, see Figure 4 and Figure 5 The cooling plate 160 includes a first sub-plate 163 and a second sub-plate 164. Multiple connecting channels 161 are formed in both the first sub-plate 163 and the second sub-plate 164. The first sub-plate 163 and the second sub-plate 164 form an installation groove 162.

[0046] Specifically, the first sub-board 163 and the second sub-board 164 are connected along the X-axis, while the internal connecting channel 161 extends along the Y-axis. Each sub-board consists of two parallel panels and multiple support plates perpendicularly connected between the two panels. Connecting channels 161, with identical apertures, are formed between the spaced-apart support plates. Depending on the size of the battery module 210, the ends of the first sub-board 163 and the second sub-board 164 can be mated or spaced apart to accommodate battery modules 210 of different sizes, thus providing wide applicability.

[0047] In this embodiment, the first sub-board 163 and the second sub-board 164 are connected to form a mounting groove 162, which facilitates the installation and fixing of the battery module 210, simplifies the processing technology of the cooling plate 160, increases the design flexibility of the cooling plate 160, and enables it to adapt to battery modules 210 of different sizes.

[0048] In some embodiments, see Figure 4 Both the first sub-plate 163 and the second sub-plate 164 include a horizontal portion 1631 and a vertical portion 1632. The vertical portion 1632 is perpendicularly connected to the horizontal portion 1631, and the horizontal portion 1631 of the first sub-plate 163 is connected to the horizontal portion 1631 of the second sub-plate 164. Both the horizontal portion 1631 and the vertical portion 1632 are provided with a connecting channel 161 extending along the Y-axis direction.

[0049] In this embodiment, the vertical portion 1632 forms a constraint around the battery module 210, reducing the risk of the battery module 210 shaking within the cooling plate 160 due to bumps or vibrations during transportation. Both the vertical portion 1632 and the horizontal portion 1631 are designed with multiple connecting channels 161, which not only enhances the structural strength but also ensures more efficient heat dissipation. The large contact area between the vertical portion 1632 and the horizontal portion 1631 and the battery module 210 significantly improves the cooling effect of the battery 200, thereby improving the performance and lifespan of the battery 200.

[0050] In some embodiments, see Figure 6 and Figure 7The cooling plate 160 includes a first cooling plate 165 and two second cooling plates 166. The first cooling plate 165 is connected between the two second cooling plates 166 to form a mounting groove 162. The first cooling plate 165 and the second cooling plates 166 are vertically connected. Specifically, the first cooling plate 165 is arranged horizontally, and the second cooling plates 166 are arranged vertically. The cooling plate 160 is manufactured using an integral molding process, which simplifies the manufacturing process. The first cooling plate 165 supports the battery module 210, providing stable support, while the second cooling plates 166 restrict the movement of the battery module 210, ensuring that it remains fixed in the mounting groove 162. The first cooling plate 165 and the second cooling plate 166 have a large contact area with the battery module 210. This design increases the heat dissipation contact surface, significantly improves the cooling effect of the battery 200, effectively prevents the battery 200 from overheating, and extends its service life.

[0051] In some embodiments, see Figure 8 The frame 111 is also provided with an air intake channel 140 and an air outlet channel. The air intake port 120 is connected to the air intake channel 140, the air outlet 130 is connected to the air outlet channel 150, and the connecting channel 161 is connected between the air intake channel 140 and the air outlet channel 150.

[0052] Specifically, the frame 111 includes a first sub-frame, a second sub-frame, and a connecting plate. The first sub-frame is fitted over the second sub-frame, and the first and second sub-frames are spaced apart. The connecting plate connects the first and second sub-frames. An air inlet 120 and an air outlet 130 are formed on the first sub-frame. An air inlet channel 140 and an air outlet channel 150 are formed between the first and second sub-frames, and the air inlet channel 140 and the air outlet channel 150 are separated by a baffle plate.

[0053] In this embodiment, the air inlet 120 is connected to the air intake channel 140. The cooling plate 160 has multiple connecting channels 161 inside. When air enters the connecting channels 161 from the air inlet 120 through the air intake channel 140, and then exits from the air outlet 130 through the air outlet channel 150, a complete air circulation system is formed. The gas flow path is long, resulting in good heat dissipation. The air intake channel 140 and the air outlet channel 150 are formed by utilizing the frame structure 111 of the housing 110, reducing the number of components and lowering the weight of the battery 200. This battery housing 100 design not only enhances heat dissipation performance but also improves the cooling efficiency of the entire system by optimizing the internal airflow path.

[0054] In some embodiments, see Figure 5 and Figure 8The frame 111 is formed by a first side plate 1111, a second side plate 1112, a third side plate 1113, and a fourth side plate 1114. The first side plate 1111 and the third side plate 1113 are arranged opposite to each other, and the second side plate 1112 and the fourth side plate 1114 are arranged opposite to each other. An air inlet 120 and an air outlet 130 are provided on the first side plate 1111. A connecting channel 161 is located between the second side plate 1112 and the fourth side plate 1114. An air inlet channel 140 extends along the first side plate 1111 and the second side plate 1112, and an air outlet channel 150 extends along the first side plate 1111 and the fourth side plate 1114.

[0055] Specifically, see Figure 4 , Figure 5 , Figure 8 and Figure 9 The first side plate 1111, the second side plate 1112, and the fourth side plate 1114 are all double-layered structures, each having a first plate 115 and a second plate 116. The first plate 115 and the second plate 116 are spaced apart, with the first plate 115 located outside the second plate 116, forming a channel for gas flow between them. The first plate 115 of the first side plate 1111 has an air inlet 120 and an air outlet 130. A baffle is provided between the air inlet 120 and the air outlet 130 of the first side plate 1111, separating the air inlet channel 140 and the air outlet channel 150. The second plate 116 of the second side plate 1112 has an outlet 141 for the air inlet channel 140, which communicates with the inlet 151 of the flow channel. The second plate 116 of the fourth side plate 1114 is provided with an inlet 151 of an air outlet channel 150, and the outlet 141 of the flow channel is connected to the inlet 151 of the air outlet channel 150. The shape and size of the outlet 141 on the second side plate 1112 and the inlet 151 on the fourth side plate 1114 are the same as the shape and size of the end of the cooling plate 160.

[0056] In this embodiment, the air inlet channel 140 extends from the first side plate 1111 to the second side plate 1112, while the air outlet channel 150 extends from the fourth side plate 1114 to the first side plate 1111, both penetrating the corresponding side plates of the frame 111. This design extends the flow path of the cooling gas, thereby significantly improving the heat dissipation effect of the device and ensuring the stability and reliability of the equipment during long-term operation.

[0057] In some embodiments, see Figure 5 The second side plate 1112 and the fourth side plate 1114 are also provided with side beams 180 protruding from the frame 111. This facilitates the installation of the battery pack 200 on electrical equipment.

[0058] In some embodiments, see Figure 1 and Figure 2It also includes an electrical mounting plate 170, which is mounted on the base plate 112 and located on one side of the cooling plate 160. The BDU structure is mounted on the electrical mounting plate 170. The heat generated by the electrical components on the electrical mounting plate 170 is transferred to the cooling plate 160 through the base plate 112, thereby achieving heat dissipation of the electrical components, ensuring the reliability of the electrical components, and improving the reliability of the battery 200.

[0059] Secondly, see Figure 1 , Figure 2 and Figure 3 This utility model provides a battery 200, including a battery module 210 and a battery case 100 as described above. The battery module 210 is located within a receiving space 113 and mounted on a cooling plate 160. The battery 200 also includes a CCS assembly 220, which is mounted on the side of the battery module 210 facing away from the cooling plate 160. The battery 200 in this embodiment has the same technical effects as the battery case 100 described above, and will not be repeated here.

[0060] In some embodiments, thermally conductive adhesive is provided between the battery module 210 and the cooling plate 160. Specifically, the cooling plate 160 includes a first cold plate 165 and two second cold plates 166, with the first cold plate 165 connecting the two second cold plates 166 to form a mounting groove 162. Thermally conductive adhesive is provided between the bottom of the battery module 210 and the first cold plate 165, connecting the battery module 210 and the first cold plate 165. Thermally conductive adhesive can also be provided between the second cold plates 166 and the sides of the battery module 210, connecting the battery module 210 and the second cold plates 166. The thermally conductive adhesive can be silicone, epoxy resin, polyurethane, etc.

[0061] In this embodiment, thermally conductive adhesive is provided between the battery module 210 and the cooling plate 160 to ensure efficient heat transfer. This adhesive not only provides a physical connection but also, through its excellent thermal conductivity, allows the heat generated by the battery module 210 to be rapidly transferred to the cooling plate 160, thereby significantly improving the heat dissipation effect of the battery 200.

[0062] Thirdly, embodiments of this application provide an electrical device that includes a battery 200 as described above. The electrical device includes, but is not limited to, electric vehicles, electric cars, ships, and spacecraft, etc. For example, spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc.

[0063] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0064] In the description of this application, 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, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0065] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. 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 utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A battery box (100), characterized in that, include: The housing (110) includes a receiving space (113) formed by a frame (111) and a bottom plate (112), wherein the frame (111) is provided with an air inlet (120) and an air outlet (130); A cooling plate (160) is located within the receiving space (113) and mounted on the base plate (112). A plurality of connecting channels (161) are formed within the cooling plate (160), and the connecting channels (161) connect the air inlet (120) and the air outlet (130). The cooling plate (160) is configured to mount the battery module (210).

2. The battery box (100) according to claim 1, characterized in that, The cooling plate (160) has a mounting groove (162) which is configured to mount the battery module (210).

3. The battery box (100) according to claim 2, characterized in that, The cooling plate (160) includes a first sub-plate (163) and a second sub-plate (164). Both the first sub-plate (163) and the second sub-plate (164) have a plurality of the aforementioned connecting channels (161). The first sub-plate (163) and the second sub-plate (164) are connected to form the mounting groove (162).

4. The battery box (100) according to claim 3, characterized in that, Both the first sub-plate (163) and the second sub-plate (164) include a horizontal portion (1631) and a vertical portion (1632), the vertical portion (1632) being vertically connected to the horizontal portion (1631), and the horizontal portion (1631) of the first sub-plate (163) being connected to the horizontal portion (1631) of the second sub-plate (164).

5. The battery box (100) according to claim 2, characterized in that, The cooling plate (160) includes a first cold plate (165) and two second cold plates (166), the first cold plate (165) is connected between the two second cold plates (166) to form the mounting groove (162), and the first cold plate (165) is perpendicularly connected to the second cold plates (166).

6. The battery box (100) according to any one of claims 1 to 5, characterized in that, The frame (111) is also provided with an air intake channel (140) and an air outlet channel (150). The air inlet (120) is connected to the air intake channel (140), and the air outlet (130) is connected to the air outlet channel (150). The connecting channel (161) connects the air intake channel (140) and the air outlet channel (150).

7. The battery box (100) according to claim 6, characterized in that, The frame (111) is formed by a first side plate (1111), a second side plate (1112), a third side plate (1113), and a fourth side plate (1114). The first side plate (1111) and the third side plate (1113) are arranged opposite to each other, and the second side plate (1112) and the fourth side plate (1114) are arranged opposite to each other. The air inlet (120) and the air outlet (130) are arranged on the first side plate (1111). The connecting channel (161) is located between the second side plate (1112) and the fourth side plate (1114). The air inlet channel (140) extends along the first side plate (1111) and the second side plate (1112), and the air outlet channel (150) extends along the first side plate (1111) and the fourth side plate (1114).

8. The battery box (100) according to any one of claims 1 to 5, characterized in that, It also includes an electrical mounting plate (170), which is mounted on the base plate (112) and located on one side of the cooling plate (160).

9. A battery (200), characterized in that, include: Battery module (210); The battery box (100) as described in any one of claims 1 to 8, wherein the battery module (210) is located within the receiving space (113) and mounted on the cooling plate (160).

10. The battery (200) according to claim 9, characterized in that, Thermally conductive adhesive is provided between the battery module (210) and the cooling plate (160).

11. An electrical appliance, characterized in that, Includes the battery (200) as described in claim 9 or 10.

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