Battery device and electric appliance

Abstract

The application relates to a battery device and an electric equipment, the battery device comprising: a battery body comprising a box body and a battery monomer arranged in the box body; and a heat exchange module arranged on the outer surface of the box body to form a surface contact; the heat exchange module has a heat exchange cavity and an air inlet and an air outlet respectively communicated with the heat exchange cavity, and the air inlet is arranged on the air outlet side of the air conditioner module. In the application, the heat exchange module is arranged on the outer surface of the box body to form a surface contact with the box body. When the battery device is applied to the electric equipment, the air inlet of the heat exchange module is arranged on the air outlet side of the air conditioner module, cold air or hot air blown out by the air conditioner module can be smoothly introduced into the heat exchange cavity of the heat exchange module, heat exchange is conducted between the battery body and the heat exchange cavity, and the heat exchange cavity is discharged from the air outlet of the heat exchange module; in this way, the heat exchange module is arranged outside, the space utilization rate inside the battery body is improved, the energy output by the air conditioner module is reasonably utilized, and the energy utilization rate is improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery device and electrical equipment. Background Technology

[0002] Battery devices are affected by external ambient temperature during cycling, requiring temperature regulation to maintain them within a suitable range. Therefore, heat exchange structures are typically installed inside the battery device. However, the limited space inside the battery device means that the placement of heat exchange structures will affect space utilization, hindering the improvement of the battery's energy density. Utility Model Content

[0003] Therefore, it is necessary to provide a battery device and electrical equipment to address the problem of low internal space utilization in current battery devices.

[0004] In a first aspect, this application provides a battery device for use in electrical equipment, the electrical equipment including an air conditioning module for regulating the internal temperature of the electrical equipment; the battery device includes a battery body and a heat exchange module, the battery body including a housing and battery cells disposed inside the housing; the heat exchange module is fitted to the outer surface of the housing to form surface contact; the heat exchange module has a heat exchange cavity and an air inlet and an air outlet respectively communicating with the heat exchange cavity, the air inlet being disposed on the air outlet side of the air conditioning module.

[0005] It should be noted that the battery pack is composed of a casing and individual battery cells within it. The heat exchange module is then positioned on the outer surface of the casing, allowing it to be externally located within the battery pack. This design offers several advantages. First, by placing the heat exchange module on the outer surface of the casing, heat exchange is achieved without encroaching on the internal space of the battery pack, thus improving space utilization. Second, the air inlet of the heat exchange module is located on the air outlet side of the air conditioning module, enabling the efficient use of either cold or hot air from the air conditioning module to regulate the battery pack temperature and optimize energy utilization.

[0006] In some embodiments, the heat exchange chamber is provided with multiple heat exchange channels, one end of which is connected to the air inlet and the other end of which is connected to the air outlet.

[0007] In this way, by setting up multiple heat exchange channels, not only can the cold or hot air be distributed more evenly in the heat exchange chamber, and the battery body be heated more evenly, but each heat exchange channel can also play a good guiding role for the cold or hot air, so that the cold or hot air flows smoothly from the air inlet to the air outlet, thereby improving the heat exchange efficiency.

[0008] In some embodiments, the heat exchange module includes a base, a cover plate and multiple fins. The base and the cover plate together enclose a heat exchange cavity. The base is attached to the outer surface of the housing. All the fins are disposed on the surface of the base facing the heat exchange cavity, and a heat exchange flow channel is defined between each two adjacent fins.

[0009] In this way, an independent heat exchange chamber is first formed by the base and cover plate, and the fins are set inside the heat exchange chamber. When the battery device is installed in the electrical equipment, the fins can isolate it from the internal space of the electrical equipment, better ensuring the stable operation of the various structures in the electrical equipment and battery device. Secondly, the fins can effectively increase the heat exchange area between the heat exchange module and the housing, improving heat exchange efficiency.

[0010] In some embodiments, the heat exchange module further includes a seal disposed between the base and the cover plate.

[0011] In this way, by setting up a seal, the heat exchange chamber is made into a sealed and independent space. When the battery device is installed in the electrical equipment, the heat exchange chamber can be better isolated from the internal space of the electrical equipment, reducing the impact on other components inside the electrical equipment during the heat exchange process.

[0012] In some embodiments, the seal is disposed around the outer periphery of the base and the cover. This allows the seal to better enclose the space between the base and the cover, sealing the gap between them and improving the sealing performance.

[0013] In some embodiments, the thermal conductivity of the base ranges from 2 W / (m·K) to 240 W / (m·K); and / or, the thermal conductivity of the cover plate ranges from 2 W / (m·K) to 240 W / (m·K); and / or, the thermal conductivity of each fin ranges from 2 W / (m·K) to 240 W / (m·K).

[0014] By setting the thermal conductivity of the base, cover plate, and each fin within the aforementioned range, the heat exchange efficiency of the heat exchange module can be effectively improved.

[0015] In some embodiments, the air inlet and air outlet are respectively located at opposite ends of the heat exchange chamber.

[0016] Therefore, the above structure allows the cold or hot air blown out by the air conditioning module to enter the heat exchange chamber more smoothly from the air inlet and be discharged smoothly from the air outlet after heat exchange, thereby improving heat exchange efficiency.

[0017] In some embodiments, the battery device further includes a one-way valve disposed at the air outlet and configured to allow only the heat exchange medium in the heat exchange chamber to be discharged from the air outlet.

[0018] By setting a one-way valve, the sealing performance inside the heat exchange chamber can be further improved, allowing the cold or hot air blown out by the air conditioning module to smoothly enter from the air inlet and exit from the air outlet.

[0019] In some embodiments, the housing includes a shell and a top cover that are sealed together, with the heat exchange module fitted onto the outer surface of the top cover. This structure maximizes the contact area between the heat exchange module and the battery body, thereby improving heat exchange efficiency.

[0020] Secondly, this application also provides an electrical device, including an electrical main body, an air conditioning module, and a battery device as described above. The air conditioning module and the battery device are both disposed inside the electrical main body. The air conditioning module is used to regulate the internal temperature of the electrical main body, and the battery device is disposed on the air outlet side of the air conditioning module.

[0021] In the aforementioned battery device and electrical equipment, the battery pack is formed by the battery body, the housing, and the individual battery cells inside the housing. The heat exchange module is attached to the outer surface of the housing, meaning it is external to the battery pack. This allows the heat exchange module to make surface contact with the housing. Furthermore, when the battery device is used in the electrical equipment, the air inlet of the heat exchange module is located on the air outlet side of the air conditioning module. This allows the cold or hot air blown out by the air conditioning module to be smoothly introduced into the heat exchange chamber of the heat exchange module, where it exchanges heat with the battery body before being discharged from the air outlet. This external placement of the heat exchange module improves the internal space utilization of the battery body and optimizes the energy output from the air conditioning module, thus increasing energy efficiency. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of a vehicle according to one or more embodiments.

[0023] Figure 2 This is an exploded structural diagram of a battery device according to one or more embodiments.

[0024] Figure 3 This is another exploded structural diagram of a battery device according to one or more embodiments.

[0025] Figure 4 This is a schematic diagram of the structure of a heat exchange module in a battery device according to one or more embodiments.

[0026] Figure 5 This is a partial cross-sectional view of a battery device according to one or more embodiments.

[0027] Figure 6 This is a partial cross-sectional view of the location of a one-way valve in a battery device according to one or more embodiments.

[0028] Explanation of reference numerals in the attached drawings: 1000, vehicle; 100, battery unit; 200, controller; 300, motor; 10, housing; 20, battery cell; 11, first part; 12, second part; 13, battery body; 14, heat exchange module; 15, one-way valve; 16, housing; 17, top cover; 141, heat exchange chamber; 142, air inlet; 143, air outlet; 144, heat exchange channel; 145, base; 146, cover plate; 147, fins; 148, seal. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are 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, and therefore should not be construed as a limitation of this application.

[0031] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0035] Currently, judging from market trends, the application of battery devices is becoming increasingly widespread. Battery devices are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as other fields. With the continuous expansion of the application areas of battery devices, the market demand is also constantly increasing.

[0036] A battery device consists of one or more battery cells. For each battery device, the multiple battery cells that make up it can be connected in series, in parallel, or in a mixed configuration. Among them, a mixed configuration means that multiple battery cells are connected in both series and parallel.

[0037] Battery devices are typically installed in electrical equipment, such as electric vehicles, as a power source. However, different usage scenarios have different ambient temperatures, and excessively high or low ambient temperatures can affect the performance of the battery device.

[0038] Furthermore, in addition to the influence of ambient temperature, each individual battery cell in the battery device also generates heat during the cycle process. If the heat cannot be dissipated in time, it will also affect the performance of the battery device.

[0039] Under such circumstances, a heat exchange structure is usually required to exchange heat with the battery device and keep it operating within a suitable temperature range.

[0040] Current heat exchange structures typically include liquid cooling and air cooling. Liquid cooling requires the installation of water-cooled plates, liquid pipelines, water pumps, and sealing interfaces inside the battery device, which is not only structurally complex but also poses a risk of coolant leakage. Air cooling, on the other hand, involves installing fans and air ducts inside the battery device, which not only occupies internal space but also has limited temperature control effectiveness.

[0041] Therefore, in order to achieve the heat exchange effect of the battery device, it is necessary to occupy the internal space of the battery device. However, the internal space of the battery device is limited, resulting in low utilization of the internal space of the battery device, which is not conducive to improving the energy density of the battery device.

[0042] Based on the above considerations, in order to solve the problem of low internal space utilization in current battery devices, one or more embodiments of this application provide a battery device in which a heat exchange module is attached to the outer surface of the housing, forming surface contact with the housing. Simultaneously, when the battery device is used in an electrical appliance, the air inlet of the heat exchange module is located on the air outlet side of the air conditioning module, enabling the smooth introduction of cold or hot air blown out by the air conditioning module into the heat exchange chamber of the heat exchange module, where it exchanges heat with the battery body before being discharged from the air outlet of the heat exchange module. In this way, by externalizing the heat exchange module, the internal space utilization of the battery body is improved, and the energy output from the air conditioning module is utilized more efficiently, thus improving energy utilization.

[0043] It should be noted that the battery device mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells, which are connected in series, parallel, or mixed connections via a busbar.

[0044] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells. As an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells together to form a single module. As an example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0045] In some embodiments, the battery device may be a battery pack, which includes a housing and one or more individual battery cell assemblies housed within the housing.

[0046] As an example, the battery cell assembly can be a battery module, which can be housed in a housing by fixing the battery module in the housing.

[0047] As an example, battery cell assemblies can also be housed in a housing by directly fixing multiple battery cells to the housing.

[0048] The battery devices disclosed in this application can be used, but are not limited to, in electrical equipment such as vehicles, ships, or aircraft.

[0049] This application provides an electrical device that uses a battery as a power source. The electrical device can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0050] For ease of explanation, the following embodiments will use a vehicle as an example of an electrical device according to an embodiment of this application.

[0051] Please refer to Figure 1 The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 100 is installed inside the vehicle 1000, and the battery device 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery device 100 can be used to power the vehicle 1000; for example, the battery device 100 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during starting, navigation, and driving.

[0052] In some embodiments of this application, the battery device 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0053] Please refer to Figure 2The battery device 100 includes a housing 10 and a battery cell 20, with the battery cell 20 housed within the housing 10. The housing 10 provides a space for the battery cell 20 and can have various structures. In some embodiments, the housing 10 may include a first portion 11 and a second portion 12, which overlap each other, collectively defining a space for accommodating the battery cell 20. The second portion 12 may be a hollow structure with one open end, and the first portion 11 may be a plate-like structure, covering the open side of the second portion 12 so that the first portion 11 and the second portion 12 together define the space. Alternatively, both the first portion 11 and the second portion 12 may be hollow structures with one open side, with the open side of the first portion 11 covering the open side of the second portion 12. Of course, the housing 10 formed by the first portion 11 and the second portion 12 can have various shapes, such as a cylinder, a cuboid, etc.

[0054] In the battery device 100, there can be multiple battery cells 20, which can be connected in series, parallel, or in a mixed configuration. A mixed configuration means that multiple battery cells 20 are connected in both series and parallel connections. Multiple battery cells 20 can be directly connected in series, parallel, or in a mixed configuration, and then the entire assembly of the multiple battery cells 20 is housed within the housing 10. Alternatively, the battery device 100 can also consist of multiple battery cells 20 first connected in series, parallel, or in a mixed configuration to form battery modules, and then these battery modules are connected in series, parallel, or in a mixed configuration to form a whole, which is also housed within the housing 10. The battery device 100 may also include other structures; for example, it may include a busbar component for electrical connection between the multiple battery cells 20.

[0055] Each battery cell 20 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell 20 can be cylindrical, flat, cuboid, or other shapes.

[0056] Please refer to the following: Figure 3 and Figure 4 This application provides a battery device 100 for use in an electrical appliance, which includes an air conditioning module (not shown) for regulating the internal temperature of the appliance. The battery device 100 includes a battery body 13 and a heat exchange module 14. The battery body 13 includes a housing 10 and battery cells 20 disposed inside the housing 10. The heat exchange module 14 is fitted to the outer surface of the housing 10 to form surface contact. The heat exchange module 14 has a heat exchange cavity 141 and an air inlet 142 and an air outlet 143 respectively communicating with the heat exchange cavity 141. The air inlet 142 is located on the air outlet side of the air conditioning module.

[0057] It should be noted that electrical equipment refers to equipment that uses battery device 100 as a power source, and battery device 100 can provide operating power or driving power for the electrical equipment. Electrical equipment usually also includes an air conditioning module, which is installed inside the electrical equipment and can cool or heat to regulate the internal temperature of the electrical equipment.

[0058] The battery device 100 includes a battery body 13 and a heat exchange module 14, wherein the battery body 13 refers to the component in the battery device 100 that actually provides electrical energy.

[0059] The battery body 13 includes a housing 10 and battery cells 20. The housing 10 has an internal cavity for accommodating the battery cells 20, and the housing 10 protects the battery cells 20 inside. One or more battery cells 20 can be arranged within the cavity. In other words, the battery body 13 includes one or more battery cells 20, which can be used to provide voltage and capacitance.

[0060] The heat exchange module 14 is a component capable of exchanging heat with the battery body 13 to cool or heat the battery body 13. The heat exchange module 14 is fitted into the outer surface of the housing 10, forming a surface contact. Thus, the contact surface between the heat exchange module 14 and the housing 10 forms a heat exchange surface, enabling heat exchange with the battery body 13.

[0061] The heat exchange module 14 has a heat exchange chamber 141 inside. The heat exchange module 14 also has an air inlet 142 and an air outlet 143, which are connected to the heat exchange chamber 141. In this way, the heat exchange gas can enter the heat exchange chamber 141 from the air inlet 142, exchange heat with the battery body 13 in the heat exchange chamber 141, and then be discharged from the air outlet 143.

[0062] Furthermore, the air inlet 142 is located on the air outlet side of the air conditioning module. That is, when the air conditioning module and the battery device 100 are installed in the electrical equipment, the battery device 100 is placed close to the air conditioning module, and the air inlet 142 is located on the air outlet side of the air conditioning module.

[0063] Thus, when the battery body 13 needs cooling, the air conditioning module can be controlled to output cold air. The cold air enters the heat exchange chamber 141 through the air inlet 142, exchanges heat with the battery body 13 in the heat exchange chamber 141, carries away the heat from the battery body 13, and is then discharged from the air outlet 143. When the battery body 13 needs heating, the air conditioning module can be controlled to output hot air. The hot air enters the heat exchange chamber 141 through the air inlet 142, exchanges heat with the battery body 13 in the heat exchange chamber 141, transfers the heat to the battery body 13, and is then discharged from the air outlet 143.

[0064] Thus, the battery body 13, together with the housing 10 and the individual battery cells 20 within the housing 10, forms a battery pack. The heat exchange module 14 is then disposed on the outer surface of the housing 10, allowing it to be externally located within the battery pack. This design offers several advantages. First, because the heat exchange module 14 is located on the outer surface of the housing 10, it achieves heat exchange for the battery body 13 without occupying internal space, thus improving the utilization rate of the internal space. Second, the air inlet 142 of the heat exchange module 14 is located on the air outlet side of the air conditioning module, enabling the full utilization of the cold or hot air blown by the air conditioning module to regulate the temperature of the battery body 13, rationally utilizing the energy output by the air conditioning module, and improving energy efficiency.

[0065] In some embodiments, the heat exchange chamber 141 is provided with multiple heat exchange channels 144, one end of all heat exchange channels 144 is connected to the air inlet 142, and the other end is connected to the air outlet 143.

[0066] Specifically, the heat exchange chamber 141 is divided into multiple heat exchange channels 144, and all heat exchange channels 144 extend in the same direction, from the air inlet 142 to the air outlet 143.

[0067] In this way, the cold or hot air from the air conditioning module enters the heat exchange chamber 141 through the air inlet 142 and flows along each heat exchange channel 144 to the air outlet 143 for discharge.

[0068] During this process, each heat exchange channel 144 can evenly distribute the cold or hot air in the heat exchange chamber 141, making the cold or hot air more evenly distributed in the heat exchange chamber 141, thereby enabling more uniform heat exchange on the battery body 13.

[0069] Furthermore, each heat exchange channel 144 can also effectively guide cold or hot air, allowing cold or hot air to flow smoothly from the air inlet 142 to the air outlet 143, thereby improving heat exchange efficiency.

[0070] Thus, by setting multiple heat exchange channels 144, not only can the cold or hot air be distributed more evenly in the heat exchange chamber 141, and the battery body 13 be heat-exchanged more evenly, but each heat exchange channel 144 can also play a good guiding role for the cold or hot air, so that the cold or hot air can flow smoothly from the air inlet 142 to the air outlet 143, thereby improving the heat exchange efficiency.

[0071] In some embodiments, the heat exchange module 14 includes a base 145, a cover plate 146 and a plurality of fins 147. The base 145 and the cover plate 146 together enclose a heat exchange cavity 141. The base 145 is attached to the outer surface of the housing 10. All the fins 147 are disposed on the surface of the base 145 facing the heat exchange cavity 141, and a heat exchange flow channel 144 is defined between each two adjacent fins 147.

[0072] Specifically, the base 145 is fitted to the outer surface of the housing 10, thereby forming a surface contact with the outer surface of the housing 10 to facilitate heat exchange with the battery body 13.

[0073] The cover plate 146 can cover the base 145 and together with the base 145, form a heat exchange cavity 141. Furthermore, all the fins 147 are disposed on the base 145 and are located within the heat exchange cavity 141.

[0074] The shape of the fins 147 may be, but is not limited to, straight, wavy, or serrated, and a heat exchange channel 144 is formed between each two adjacent fins 147.

[0075] In this way, an independent heat exchange chamber 141 is first formed by the base 145 and the cover plate 146, and the fins 147 are set inside the heat exchange chamber 141. When the battery device 100 is installed in the electrical equipment, the fins 147 can be isolated from the internal space of the electrical equipment, better ensuring the stable operation of the electrical equipment and the various structures in the battery device 100. Secondly, the fins 147 can effectively increase the heat exchange area between the heat exchange module 14 and the battery body 13, thereby improving the heat exchange efficiency.

[0076] In some embodiments, the heat exchange module 14 further includes a seal 148, which is sealed between the base 145 and the cover plate 146.

[0077] Specifically, the seal 148 may be, but is not limited to, a sealing gasket, and the seal 148 may be disposed around the outer periphery of the base 145 and the cover plate 146. In this way, the seal 148 can better surround the base 145 and the cover plate 146, seal the gap between the base 145 and the cover plate 146, and improve the sealing performance.

[0078] Furthermore, the base 145 and the cover plate 146 can be connected by welding, and then the sealing element 148 is sealed in the gap between the base 145 and the cover plate 146, so that the heat exchange chamber 141 forms a sealed and independent space.

[0079] Thus, by setting the seal 148, the heat exchange chamber 141 forms a sealed and independent space. When the battery device 100 is installed in the electrical equipment, the heat exchange chamber 141 can be better isolated from the internal space of the electrical equipment, reducing the impact on other components inside the electrical equipment during the heat exchange process.

[0080] In some embodiments, the thermal conductivity of the base 145 ranges from 2 W / (m·K) to 240 W / (m·K). And / or, the thermal conductivity of the cover 146 ranges from 2 W / (m·K) to 240 W / (m·K). And / or, the thermal conductivity of each fin 147 ranges from 2 W / (m·K) to 240 W / (m·K).

[0081] Specifically, the base 145 may be made of materials such as ceramic or aluminum, the cover plate 146 may be made of materials such as ceramic or aluminum, and the fins 147 may be made of materials such as ceramic or aluminum. The fins 147 can be fixed to the base 145 by welding or adhesive bonding.

[0082] By setting the thermal conductivity of the base 145, cover plate 146, and each fin 147 within the aforementioned range, the heat exchange efficiency of the heat exchange module 14 can be effectively improved.

[0083] In some embodiments, the air inlet 142 and the air outlet 143 are respectively disposed at opposite ends of the heat exchange chamber 141.

[0084] Specifically, the air inlet 142 and the air outlet 143 can be respectively set at opposite ends of the heat exchange chamber 141. In this way, each heat exchange channel 144 can extend from one end of the air inlet 142 to one end of the air outlet 143, so that cold or hot air can flow more smoothly in each heat exchange channel 144.

[0085] Furthermore, the air inlet 142 and the air outlet 143 are located at opposite ends of the heat exchange chamber 141, respectively. The cold or hot air blown out by the air conditioning module enters the heat exchange chamber 141 from the air inlet 142, and the airflow after heat exchange is discharged from the air outlet 143. In this process, the probability of mutual influence between the airflow entering and the airflow being discharged is even smaller.

[0086] Therefore, through the above structure, the cold or hot air blown out by the air conditioning module can enter the heat exchange chamber 141 more smoothly from the air inlet 142, and be smoothly discharged from the air outlet 143 after heat exchange, thereby improving the heat exchange efficiency.

[0087] Please refer to the following: Figure 4 , Figure 5 as well as Figure 6In some embodiments, the battery device 100 further includes a one-way valve 15 disposed at the air outlet 143 and configured to allow only the heat exchange medium in the heat exchange chamber 141 to be discharged from the air outlet 143.

[0088] Specifically, the one-way valve 15 refers to a valve body structure that controls the flow of gas in a single direction. By placing the one-way valve 15 at the air outlet 143, the one-way valve 15 can control the air outlet 143 to only discharge airflow, thereby preventing airflow from flowing back into the heat exchange chamber 141 from the air outlet 143.

[0089] Thus, by setting a one-way valve 15, the sealing performance inside the heat exchange chamber 141 can be further improved, allowing the cold or hot air blown out by the air conditioning module to smoothly enter from the air inlet 142 and be discharged from the air outlet 143.

[0090] like Figure 3 As shown, in some embodiments, the housing 10 includes a shell 16 and a top cover 17 that are sealed together, and the heat exchange module 14 is attached to the outer surface of the top cover 17.

[0091] Specifically, the housing 16 and the top cover 17 together form a cavity for accommodating the battery cell 20. The heat exchange module 14 is attached to the outer surface of the top cover 17, which can maximize the contact area between the heat exchange module 14 and the housing 10 and improve the heat exchange efficiency.

[0092] In addition, the heat exchange module 14 can be fixed to the outer surface of the top cover 17 by welding or structural adhesive.

[0093] Based on the same concept as the battery device 100 described above, this application also provides an electrical device, including an electrical main body, an air conditioning module, and the battery device 100 as described above. The air conditioning module and the battery device 100 are both disposed inside the electrical main body. The air conditioning module is used to regulate the internal temperature of the electrical main body, and the battery device 100 is disposed on the air outlet side of the air conditioning module.

[0094] Specifically, the electrical equipment can be, but is not limited to, the vehicle 1000, with both the air conditioning module and the battery device 100 located inside the vehicle 1000. The air conditioning module can regulate the temperature of the interior environment of the vehicle 1000. The air inlet 142 of the heat exchange module 14 in the battery device 100 is located on the air outlet side of the air conditioning module, so that the cold or hot air blown out by the air conditioning module can be better utilized to cool or heat up the battery body 13.

[0095] The above structure allows for more efficient use of the air conditioning module's energy, thus improving energy utilization.

[0096] According to one or more embodiments, in specific use of this application, both the air conditioning module and the battery device 100 are installed inside the vehicle 1000, and the air inlet 142 of the heat exchange module 14 is located on the air outlet side of the air conditioning module.

[0097] When the battery body 13 needs to be cooled, the air conditioning module can be controlled to blow cold air. The cold air enters each heat exchange channel 144 through the air inlet 142, takes away the heat on the battery body 13, and then is discharged from the air outlet 143, thereby achieving the cooling of the battery body 13.

[0098] When the battery body 13 needs to be heated, the air conditioning module can be controlled to blow hot air. The hot air enters each heat exchange channel 144 through the air inlet 142, transfers heat to the battery body 13, and then is discharged from the air outlet 143, thereby heating the battery body 13.

[0099] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A battery device, characterized in that, The device is used in electrical equipment, which includes an air conditioning module for regulating the internal temperature of the electrical equipment; the battery device includes: The battery body includes a housing and individual battery cells disposed inside the housing; and A heat exchange module is fitted onto the outer surface of the housing to form surface contact; the heat exchange module has a heat exchange cavity and an air inlet and an air outlet respectively connected to the heat exchange cavity, and the air inlet is located on the air outlet side of the air conditioning module.

2. The battery device according to claim 1, characterized in that, The heat exchange chamber is provided with multiple heat exchange channels inside, one end of each heat exchange channel is connected to the air inlet, and the other end of each heat exchange channel is connected to the air outlet.

3. The battery device according to claim 2, characterized in that, The heat exchange module includes a base, a cover plate, and multiple fins. The base and the cover plate together enclose the heat exchange cavity. The base is attached to the outer surface of the housing. All the fins are disposed on the surface of the base facing the heat exchange cavity, and a heat exchange flow channel is defined between each two adjacent fins.

4. The battery device according to claim 3, characterized in that, The heat exchange module also includes a sealing element, which is sealed between the base and the cover plate.

5. The battery device according to claim 4, characterized in that, The sealing element is disposed around the outer periphery of the base and the cover plate.

6. The battery device according to claim 3, characterized in that, The thermal conductivity of the base ranges from 2 W / (m·K) to 240 W / (m·K); And / or, the thermal conductivity of the cover plate is in the range of 2 W / (m·K) to 240 W / (m·K); And / or, the thermal conductivity of each of the fins ranges from 2 W / (m·K) to 240 W / (m·K).

7. The battery device according to claim 2, characterized in that, The air inlet and the air outlet are respectively located at opposite ends of the heat exchange chamber.

8. The battery device according to any one of claims 1-7, characterized in that, The battery device also includes a one-way valve located at the air outlet and configured to allow only the heat exchange medium in the heat exchange chamber to be discharged from the air outlet.

9. The battery device according to claim 1, characterized in that, The enclosure includes a shell and a top cover that are sealed together, and the heat exchange module is fitted onto the outer surface of the top cover.

10. An electrical appliance, characterized in that, It includes a power-consuming main body, an air conditioning module, and a battery device as described in any one of claims 1-9, wherein the air conditioning module and the battery device are both disposed inside the power-consuming main body, the air conditioning module is used to regulate the internal temperature of the power-consuming main body, and the battery device is disposed on the air outlet side of the air conditioning module.

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