Heat dissipation device for battery pack

Abstract

The invention relates to a heat dissipation device for a battery pack, and the device comprises a pedestal which is used for placing the battery pack; the spraying component is arranged above the base and is used for spraying a cooling medium to the battery pack placed on the base; the expansion water tank is respectively connected with the base and the spraying component so as to supplement a cooling medium to the base and the spraying component or recover the cooling medium; wherein the spraying component comprises a plurality of spraying single bodies, each spraying single body is constructed to be of a porous structure, and the multiple spraying single bodies are arranged on the spraying component in an array mode. According to the heat dissipation device for the battery pack provided by the invention, the heat dissipation efficiency can be optimized, the heat dissipation uniformity of the battery pack is improved, and local overheating is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of battery heat dissipation devices, and in particular to a heat dissipation device for a battery pack. Background Art

[0002] With the rapid development of new energy technologies, lithium-ion batteries are widely used in various electronic devices and electric vehicles due to their high energy density, long cycle life, and excellent performance. However, during the charging and discharging process of lithium-ion batteries, a large amount of heat is generated, which poses a huge challenge to the performance and safety of the batteries. If this heat cannot be dissipated promptly and effectively, it will lead to uneven temperature distribution inside the battery, which in turn affects the battery's performance and lifespan. Although traditional air-cooling or liquid-cooling heat dissipation systems can help dissipate heat from the battery to a certain extent, they often have difficulty achieving uniform heat dissipation between battery cells, especially in battery packs, where local overheating is a prominent problem. This uneven temperature distribution increases the risk of thermal runaway and, in severe cases, may even cause the battery to catch fire or explode.

[0003] In view of the above problems, there is an urgent need in this field to develop a battery heat dissipation solution to provide strong support for the further development of new energy technologies. Summary of the Invention

[0004] The purpose of this application is to provide a heat dissipation device for a battery pack, which can optimize the heat dissipation efficiency, improve the heat dissipation uniformity of the battery pack, and avoid local overheating.

[0005] Specifically, an embodiment of the present application provides a heat dissipation device for a battery pack, comprising: a base for placing the battery pack; a spray component, arranged above the base, for spraying a cooling medium onto the battery pack placed on the base; and an expansion water tank, respectively connected to the base and the spray component, to replenish the cooling medium to the base and the spray component or to recover the cooling medium; wherein the spray component includes a plurality of spray units, each of the spray units is constructed as a porous structure, and a plurality of the spray units are arrayed on the spray component.

[0006] In a possible implementation, the spray component includes a spray plate; the spray plate is used to arrange a plurality of the spray units in an array.

[0007] In a possible implementation, the spray units are each provided with a guide layer and a capillary structure layer; the guide layer is used to introduce the flow of the cooling medium; and the capillary structure layer is used to penetrate the cooling medium into the surface of the battery pack.

[0008] In a possible implementation, the guide layer is constructed as a porous aluminum-based composite material layer; and the capillary structure layer is constructed as a graphene coating.

[0009] In a possible implementation, a first flow guide pipe is connected between the expansion water tank and the spray component; an intelligent valve is provided on the expansion water tank, and the flow of the cooling medium in the first flow guide pipe can be controlled by adjusting the opening of the intelligent valve.

[0010] In a possible implementation, a second flow guide pipe is connected between the expansion water tank and the base; a flow regulating component is provided on the path of the second flow guide pipe, and the flow regulating component is used to adjust the flow rate and pressure of the cooling medium.

[0011] In a possible implementation, a temperature and humidity detection component is provided on the expansion water tank, and the temperature and humidity detection component is used to detect the temperature and humidity of the cooling medium.

[0012] In a possible implementation, the expansion water tank is connected to an intelligent regulating component, and the intelligent regulating component is used to regulate the temperature and humidity of the cooling medium.

[0013] In a possible implementation, a waste heat recovery component is provided in the base, and the waste heat recovery component is used to recover waste heat for reuse.

[0014] In a possible implementation, the waste heat recovery component is configured as a thermoelectric conversion module to convert waste heat into electrical energy; or, the waste heat recovery component is configured as a heat exchanger to recover waste heat for reuse.

[0015] The heat dissipation device for a battery pack provided in accordance with the embodiment of the present application has the significant advantage of being able to effectively improve the uniformity of heat dissipation of the battery pack. This device uses an array-arranged spray monomer structure to ensure that the cooling medium can evenly cover the surface of the battery, thereby achieving comprehensive cooling of the battery pack. This design allows the local temperature difference generated by the battery pack during operation to be precisely controlled within ±2°C, greatly reducing the risk of thermal runaway of the battery pack due to uneven temperature. Through this innovative heat dissipation method, the performance and safety of the battery pack have been significantly improved, providing a strong guarantee for the stable operation of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. In addition, in the drawings, the same reference numerals are used for the same components, and the drawings are not drawn according to the actual scale.

[0017] Figure 1 A schematic structural diagram of a heat dissipation device for a battery pack provided in an embodiment of the present application is shown;

[0018] Figure 2 A front view of a heat dissipation device for a battery pack provided in an embodiment of the present application is shown;

[0019] Figure 3 A schematic structural diagram of the spray unit provided in an embodiment of the present application is shown.

[0020] Description of reference numerals:

[0021] 1. Base;

[0022] 2. Spray component; 201. Spray plate; 202. Spray unit;

[0023] 3. Expansion tank;

[0024] 4. The first flow guide pipe;

[0025] 5. Intelligent valve;

[0026] 6. Second flow guide pipe;

[0027] 7. Flow regulating components;

[0028] 8. Temperature and humidity detection components;

[0029] 9. Intelligent adjustment components;

[0030] 10. Waste heat recovery components;

[0031] A. Diversion layer;

[0032] B. Capillary structure layer. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0034] Lithium-ion batteries generate a considerable amount of heat during the charge and discharge cycle, which poses a major challenge to battery performance and safety. If the heat generated during the charge and discharge process cannot be dissipated promptly and effectively, it will lead to uneven temperature distribution inside the battery, which will have a negative impact on the battery's performance and service life. Although traditional air-cooled or liquid-cooled heat dissipation systems can provide heat dissipation for batteries to a certain extent, they usually have difficulty achieving uniform heat dissipation between battery cells, especially in battery packs, where the problem of local overheating is particularly obvious and prominent. This uneven temperature distribution increases the risk of thermal runaway, and in severe cases may even cause the battery to catch fire or explode, posing a potential threat to the operating environment and personnel safety.

[0035] The present invention aims to address the problems existing in the prior art and therefore proposes a heat dissipation device specifically for a battery pack. This heat dissipation device is designed to optimize heat dissipation efficiency, thereby improving heat dissipation uniformity across the battery pack and effectively preventing localized overheating.

[0036] Specifically, such as Figures 1 to 3 As shown, an embodiment of the present application provides a heat dissipation device for a battery pack, including a base 1, a spray component 2 and an expansion water tank 3, wherein the base 1 is used to place the battery pack; the spray component 2 is arranged above the base 1, and is used to spray a cooling medium to the battery pack placed on the base 1; the expansion water tank 3 is respectively connected to the base 1 and the spray component 2 to replenish the cooling medium to the base 1 and the spray component 2 or to recover the cooling medium; wherein the spray component 2 includes a plurality of spray units 202, each spray unit 202 is constructed as a porous structure, and a plurality of spray units 202 are arranged in an array on the spray component 2.

[0037] In a specific example of this embodiment, Figure 1 Shown and Figure 3As shown, this example specifically shows a battery pack heat dissipation device. The device mainly consists of three core parts: a base 1, a spray component 2 and an expansion water tank 3. The function of the base 1 is to provide a stable placement platform for the battery pack to ensure that the battery pack can be safely and stably installed on the heat dissipation device. The spray component 2 is designed above the base 1. Its main function is to achieve an effective cooling effect by spraying a cooling medium onto the battery pack. In order to ensure the continuity and efficiency of the cooling process, the expansion water tank 3 is connected to the base 1 and the spray component 2. It is responsible for replenishing and recycling the cooling medium to ensure the circulation operation of the entire cooling system. Furthermore, the spray component 2 is composed of a plurality of spray monomers 202, which are designed to have a porous structure so that the cooling medium can be sprayed evenly and effectively onto the surface of the battery pack. These spray monomers 202 are arranged in an orderly array on the spray component 2 to achieve the best cooling effect.

[0038] In addition, in order to further improve the performance of the heat dissipation device, this embodiment also takes into account the material selection and structural optimization of the heat dissipation device. The material of the spray component 2 must ensure its corrosion resistance and high temperature resistance to ensure good performance during long-term use. In order to adapt to the size and shape of different battery packs, the design of the spray component 2 allows a certain degree of adjustability to achieve the best cooling effect. The design of the expansion water tank 3 not only needs to have sufficient capacity to store the cooling medium, but also has good sealing performance to prevent leakage and volatilization of the cooling medium, ensuring the safety and efficiency of the system.

[0039] like Figure 3 As shown, the spray unit 202 is shaped like a shower head, with holes evenly distributed across the surface. The spray unit 202 features a multi-stage microporous design, with primary and secondary holes. In this embodiment, the primary holes have a diameter of 1-2 mm, and the secondary holes have a diameter of 0.2-0.5 mm, ensuring uniform coverage of the medium without blind spots. It should be noted that, in actual applications, those skilled in the art may adjust the hole structure of the spray unit 202. Such flexible adjustments and changes do not deviate from the principles and scope of this application and are therefore within the scope of protection of this application.

[0040] In an additional example, in actual application, the spray unit 202 can be driven by piezoelectric ceramics to rotate 0° to 30°, thereby adapting to the arrangement density of different batteries.

[0041] In a possible implementation, the spray component 2 includes a spray plate 201 ; the spray plate 201 is used to arrange a plurality of the spray units 202 in an array.

[0042] In the specific example of this embodiment, the spray plate 201 is typically made of corrosion-resistant materials to ensure resistance to water and chemical corrosion during long-term use. The surface of the spray plate 201 is designed with multiple holes that match the size and shape of the spray units 202, ensuring that the spray units 202 are securely mounted on the spray plate 201. Furthermore, the structural design of the spray plate 201 also takes into account the distribution of water flow to ensure uniformity and coverage of the spray effect.

[0043] To further optimize the performance of the spray system, the spray plate 201 can be equipped with an adjustment device, allowing the operator to adjust the spray angle and flow rate of the spray unit 202 according to actual needs. This design makes the spray system more flexible and can adapt to the needs of different battery packs. In addition, the installation method of the spray plate 201 must ensure that the installation process is simple and quick, while also ensuring the stability and safety of the spray plate 201 during use.

[0044] In a possible implementation, the spray units 202 are each provided with a guide layer A and a capillary structure layer B; the guide layer A is used to introduce the flow of the cooling medium; the capillary structure layer B is used to penetrate the cooling medium into the surface of the battery pack.

[0045] In a specific example of this embodiment, Figure 3 As shown, each spray unit 202 is equipped with two key components: a guide layer A and a capillary structure layer B. Furthermore, the design of the spray unit 202 needs to consider cooling efficiency and the structural characteristics of the battery pack. The guide layer A is typically made of a material with high thermal conductivity to ensure that the cooling medium can quickly absorb and remove heat. The capillary structure layer B uses a microporous material to increase the contact area between the cooling medium and the battery pack surface, thereby improving the cooling effect. This design not only improves cooling efficiency but also reduces the amount of cooling medium used, helping to reduce overall energy consumption.

[0046] To further optimize the cooling system, the layout of the spray cells 202 can be adjusted based on actual conditions. The size and shape of the spray cells 202 are tailored to the size and shape of the battery pack to maximize cooling efficiency and minimize space usage. This customized design allows the cooling system to better adapt to different battery pack types, providing a stable and reliable cooling solution for a wide range of electric vehicles.

[0047] In a possible implementation, the guide layer A is constructed as a porous aluminum-based composite material layer; and the capillary structure layer B is constructed as a graphene coating.

[0048] In this specific example, the aforementioned materials and structural design are designed to optimize heat dissipation performance. The porous aluminum-based composite material layer, due to its excellent thermal conductivity and mechanical strength, was selected as the guide layer A to ensure the cooling effect of the cooling medium. Simultaneously, the graphene coating, due to its excellent thermal conductivity and chemical stability, was used as the capillary structure layer B to promote rapid penetration and dispersion of the cooling medium.

[0049] Furthermore, the design of the porous aluminum-based composite layer takes into account the impact of its porous structure on fluid dynamics, ensuring good fluid flow and heat dissipation performance even at high current densities. The porous aluminum-based composite layer has a porosity of 60% to 80%, which effectively increases the medium's penetration rate. This porous structure allows the medium to flow freely within the layer, thereby improving cooling efficiency.

[0050] The use of graphene coating is based on its unique two-dimensional structure, which gives the material an extremely high surface area to volume ratio, thereby enhancing capillary action and allowing liquids to penetrate and disperse quickly.

[0051] In one possible implementation, a first flow guide pipe 4 is connected between the expansion water tank 3 and the spray component 2; an intelligent valve 5 is provided on the expansion water tank 3, and the flow of the cooling medium in the first flow guide pipe 4 can be controlled by adjusting the opening of the intelligent valve 5.

[0052] In a specific example of this embodiment, Figure 1 and Figure 2 As shown, the expansion tank 3 and the spray assembly 2 are connected via a first flow conduit 4. This effectively guides the cooling medium from the expansion tank 3 to the spray assembly 2. Furthermore, the expansion tank 3 is equipped with a smart valve 5 with adjustable opening. This smart valve 5 precisely controls the flow of the cooling medium within the first flow conduit 4, thereby improving the cooling efficiency and stability of the entire system.

[0053] Intelligent valve 5 can be controlled by a central control system that automatically adjusts the valve opening based on real-time temperature and pressure data. This design not only enhances the system's automation level but also dynamically adjusts the cooling medium flow rate to achieve optimal cooling performance based on varying operating conditions and environmental changes. Furthermore, the system may include a backup manual control mechanism, allowing operators to manually adjust the valve in the event of a malfunction in the intelligent control system, ensuring continuous system operation.

[0054] In a possible implementation, a second flow guide pipe 6 is connected between the expansion water tank 3 and the base 1 ; a flow regulating component 7 is provided on the path of the second flow guide pipe 6 , and the flow regulating component 7 is used to adjust the flow rate and pressure of the cooling medium.

[0055] In a specific example of this embodiment, Figure 1 and Figure 2 As shown, the expansion water tank 3 and the base 1 are connected via a second guide pipe 6; a flow regulating component 7 is specially provided on the path of the second guide pipe 6. The main function of the flow regulating component 7 is to adjust the flow rate and pressure of the cooling medium flow to ensure the stability and efficiency of the device.

[0056] Furthermore, in practical applications, similar to the aforementioned smart valve 5, the flow control component 7 typically includes an adjustable valve, allowing the operator to manually or automatically precisely control the flow of the cooling medium according to actual needs. This design enables the system to adapt to varying operating conditions, such as temperature changes or load fluctuations, thereby ensuring optimal cooling performance.

[0057] In a possible implementation, a temperature and humidity detection component 8 is provided on the expansion water tank 3 , and the temperature and humidity detection component 8 is used to detect the temperature and humidity of the cooling medium.

[0058] In a specific example of this embodiment, Figure 1 and Figure 2 As shown, the expansion tank 3 is provided with temperature and humidity detection components 8, which are designed to monitor and detect the temperature and humidity of the cooling medium in real time. Figure 1 and Figure 2 As shown, the temperature and humidity detection component 8 can be a temperature sensor and a humidity sensor.

[0059] By detecting the component, the current state of the cooling medium can be accurately grasped, thereby ensuring that the expansion tank 3 operates under optimal working conditions. In addition, the temperature and humidity detection component 8 can also provide data feedback for analysis and adjustment to optimize cooling efficiency.

[0060] To further enhance the system's intelligence, the temperature and humidity detection component 8 is typically connected to a control unit, forming a closed-loop control system. Based on the detected data, the control unit automatically adjusts the operating parameters of the expansion tank 3, such as temperature and pressure, to ensure the system always operates under optimal conditions. This automatic adjustment mechanism not only improves cooling efficiency but also reduces the need for manual intervention, making the entire cooling system more stable and reliable.

[0061] In a possible implementation, the expansion water tank 3 is connected to an intelligent regulating component 9 , and the intelligent regulating component 9 is used to regulate the temperature and humidity of the cooling medium.

[0062] In this specific example, the expansion tank 3 is connected to an intelligent regulating component 9, which is designed to precisely adjust the temperature and humidity of the cooling medium. This allows the system to automatically adjust the temperature and humidity parameters of the cooling medium based on real-time environmental conditions and cooling requirements, ensuring efficient operation of the device.

[0063] Similar to the control system described above, the intelligent regulating component 9 typically directly includes a temperature sensor, a humidity sensor, and a central processing unit (CPU). The temperature sensor monitors the temperature of the cooling medium in real time and transmits this data to the CPU. The humidity sensor performs a similar function, but monitors the humidity level of the cooling medium. After receiving this data, the CPU automatically adjusts the temperature and humidity of the cooling medium according to pre-set parameters and algorithms to achieve optimal cooling results.

[0064] In a possible implementation, a waste heat recovery component 10 is provided in the base 1 , and the waste heat recovery component 10 is used to recover waste heat for reuse.

[0065] In the specific example of this embodiment, the above-mentioned structure allows waste heat to be captured and stored for subsequent reuse. This design not only improves energy efficiency but also helps reduce energy waste, thereby achieving a more environmentally friendly and sustainable operation.

[0066] In a possible implementation, the waste heat recovery component 10 is configured as a thermoelectric conversion module to convert waste heat into electrical energy; or, the waste heat recovery component 10 is configured as a heat exchanger to recover waste heat for reuse.

[0067] In a specific example of this embodiment, the waste heat recovery component 10 is constructed as a thermoelectric conversion module, which has the ability to efficiently convert waste heat into electrical energy; or, another design idea is that the waste heat recovery component 10 is constructed as a heat exchanger, which can effectively recover waste heat and reuse it in other processes or systems, thereby improving the overall energy utilization efficiency.

[0068] In addition, the design of the waste heat recovery component 10 also takes into account its application flexibility in different industrial environments. For example, in high-temperature industrial processes, the waste heat recovery component 10 can be made of high-temperature resistant materials to ensure its stability and reliability at extreme temperatures. In situations where a large amount of thermal energy conversion is required, the thermoelectric conversion module can use high-efficiency thermoelectric materials to maximize the output of electrical energy. In situations where precise control of waste heat is required, the heat exchanger can be equipped with an advanced temperature control system to achieve fine management of waste heat. The above-mentioned flexible adjustments and changes do not deviate from the principles and scope of this application and should be limited to the scope of protection of this application.

[0069] The heat dissipation device for a battery pack provided in the embodiments of the present application has the following beneficial effects:

[0070] 1. Significantly improved heat dissipation uniformity: By adopting a shower-like bionic structure, the cooling medium can evenly cover the battery surface, so that the temperature difference on the battery surface is effectively controlled within the range of ±2°C, which greatly reduces the risk of thermal runaway.

[0071] 2. Efficiency and energy saving are significantly optimized: Combined with the intelligent control module, heat dissipation energy consumption can be reduced by more than 30%. At the same time, the waste heat recovery module can convert the generated heat energy into electrical energy or use it for auxiliary heating, further improving energy efficiency.

[0072] 3. System lightweight design: Through the modular design concept, the pipeline layout is simplified and the number of parts is reduced by 30% to 50%, thereby reducing the overall cost by 20%.

[0073] 4. Wide applicability: The heat dissipation device is compatible with a variety of battery forms, including but not limited to cylindrical, square and soft-pack batteries, and can adapt to complex and changeable application scenarios such as high-power fast charging and low-temperature environments.

[0074] It should be noted that references in this specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," and the like indicate that the described embodiment may include a particular feature, structure, or characteristic, but not necessarily every embodiment includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0075] It should be readily understood that “on,” “above,” and “over” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something,” but also includes “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above” or “over,” but also includes “above” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0076] Additionally, spatially relative terms, such as "below," "beneath," "beneath," "above," and the like, may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be in other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0077] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A heat dissipation device for a battery pack, characterized in that: include: Base, used to place the battery pack; a spraying member, disposed above the base, for spraying a cooling medium onto the battery pack placed on the base; as well as an expansion water tank, connected to the base and the spray component respectively, to replenish cooling medium to the base and the spray component or to recover cooling medium; Wherein, the spray component includes a plurality of spray units, each of the spray units is constructed as a porous structure, and a plurality of the spray units are arranged in an array on the spray component.

2. The heat dissipation device for a battery pack according to claim 1, characterized in that: The spray component includes a spray plate; The spray plate is used to arrange a plurality of the spray units in an array.

3. The heat dissipation device for a battery pack according to claim 1, characterized in that: The spray units are each provided with a guide layer and a capillary structure layer; The guide layer is used to introduce the cooling medium flow; The capillary structure layer is used to allow the cooling medium to penetrate into the surface of the battery pack.

4. The heat dissipation device for a battery pack according to claim 3, characterized in that: The guide layer is constructed as a porous aluminum-based composite material layer; The capillary structure layer is configured as a graphene coating.

5. The heat dissipation device for a battery pack according to claim 1, characterized in that: A first flow guide pipe is connected between the expansion water tank and the spray component; The expansion water tank is provided with an intelligent valve, and the flow of the cooling medium in the first flow guide pipe can be controlled by adjusting the opening of the intelligent valve.

6. The heat dissipation device for a battery pack according to claim 1, characterized in that: A second guide pipe is connected between the expansion water tank and the base; A flow regulating component is provided on the path of the second flow guide pipe, and the flow regulating component is used to adjust the flow rate and pressure of the cooling medium.

7. The heat dissipation device for a battery pack according to claim 1, characterized in that: The expansion water tank is provided with a temperature and humidity detection component, and the temperature and humidity detection component is used to detect the temperature and humidity of the cooling medium.

8. The heat dissipation device for a battery pack according to claim 1, characterized in that: The expansion water tank is connected to an intelligent regulating component, and the intelligent regulating component is used to regulate the temperature and humidity of the cooling medium.

9. The heat dissipation device for a battery pack according to claim 1, characterized in that: A waste heat recovery component is provided in the base, and the waste heat recovery component is used to recover waste heat for reuse.

10. The heat dissipation device for a battery pack according to claim 9, characterized in that: The waste heat recovery member is configured as a thermoelectric conversion module to convert waste heat into electrical energy; or, The waste heat recovery member is configured as a heat exchanger to recover waste heat for reuse.

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