Box body, battery and electric device

Abstract

The invention discloses a box body (10), a battery and an electric device. The box body (10) comprises a box body (11) and a heat dissipation assembly (12). A cavity (111) is formed in the box body (11). The heat dissipation assembly (12) comprises a heat dissipation plate (121) arranged in the cavity (111) and heat dissipation fins (122) arranged on the side, away from the cavity (111), of the heat dissipation plate (121), and the heat dissipation fins (122) and the heat dissipation plate (121) are arranged in an intersecting mode. According to the box body (10), the heat exchange area between the box body (10) and air can be greatly increased through the heat dissipation plate (121) and the heat dissipation fins (122), and therefore the heat dissipation performance of the box body (10) is improved. In addition, it can be guaranteed that the heat dissipation assembly (12) has enough structural strength and rigidity, so that the heat dissipation assembly (12) is not prone to damage in the life cycle of the battery, and it can be guaranteed that the heat dissipation performance of the box body (10) is durable, stable and reliable in the life cycle of the battery.

Description

Box, battery and electrical device Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a box, a battery, and an electrical device. Background Art

[0002] In some cases, the exterior of the enclosure is sprayed with a heat dissipation layer, which includes a phase-change material layer and a heat-dissipating oil film layer disposed outside the phase-change material layer. In actual use, the phase-change material layer actively absorbs heat from within the enclosure and transfers it to the heat-dissipating oil film layer, thereby dissipating the heat to the external environment. However, the phase-change material layer is easily damaged, resulting in reduced heat dissipation performance. Technical issues

[0003] The embodiments of the present application provide a box, a battery, and an electrical device, aiming to solve the problem of easily reduced heat dissipation performance. Technical Solutions

[0004] The technical solution adopted in the embodiment of this application is:

[0005] In a first aspect, a box is provided, the box comprising:

[0006] A box body, wherein a cavity is provided inside the box body;

[0007] The heat dissipation component includes a heat dissipation plate arranged in the cavity and a heat dissipation fin arranged on a side of the heat dissipation plate away from the cavity, and the heat dissipation fin is arranged to intersect with the heat dissipation plate.

[0008] The box provided in the embodiment of the present application can accommodate one or more battery cells through the cavity of the box body. And when the battery cells contained in the cavity generate heat during the charging and discharging process, the heat sink provided in the cavity can abut against the battery cells, so that the heat sink and the battery cells in contact with it can exchange heat, and the heat can be diffused to the heat sink, thereby greatly increasing the heat exchange area between the box and the air, so that the heat sink and the heat sink can exchange heat and diffuse heat into the air. In this way, the heat dissipation performance of the box provided in the embodiment of the present application can be effectively guaranteed and improved. In addition, the heat dissipation assembly provided in the embodiment of the present application will have a certain structural strength and rigidity based on the above-mentioned structural design, and will not be easily damaged throughout the life cycle of the battery, thereby effectively ensuring that the heat dissipation performance of the box can be long-lasting, stable and reliable throughout the life cycle of the battery.

[0009] In some embodiments, the heat sink is arranged to extend in a straight line.

[0010] This solution, on the one hand, facilitates the processing of the heat sink, simplifying and optimizing the overall structural design of the heat sink and heat plate. On the other hand, it allows air to flow smoothly along the straight sides of the heat sink, facilitating reliable and effective heat exchange between the straight sides of the heat sink and the air, thereby ensuring and improving the heat dissipation performance of the heat sink assembly and the enclosure.

[0011] In some embodiments, the heat sink is arranged to extend in a curved shape.

[0012] By adopting this solution, on the one hand, it facilitates the diversification of heat sink shapes and the enrichment and diversification of the comprehensive structural design of heat sinks and heat dissipation plates. On the other hand, the curved sides of the heat sink can create a certain turbulent effect on the air flowing through it, thereby relatively reducing the flow rate of air passing through the heat sink and relatively increasing the residence time of air passing through the heat sink. This facilitates sufficient and reliable heat exchange between the heat sink and the air, and helps to ensure and improve the heat dissipation performance of the heat dissipation component and the box.

[0013] In some embodiments, a plurality of heat sinks are provided, and the plurality of heat sinks are spaced apart along the first direction, and a heat dissipation channel is formed between two adjacent heat sinks.

[0014] By adopting the above solution, multiple heat sinks can be arranged on the outside of the heat sink. This effectively increases the heat exchange area between the heat sink assembly, the housing, and the air. In particular, the gaps between two adjacent heat sinks can form multi-sided open heat dissipation channels, facilitating air circulation in the heat dissipation channels and facilitating heat exchange between the heat sink and the heat sink and the air flowing through the heat dissipation channels, thereby effectively improving the heat dissipation performance of the housing.

[0015] In some embodiments, the plurality of heat sinks are arranged parallel to each other.

[0016] By adopting this solution, on the one hand, the layout of the heat sinks on the side of the heat sink away from the cavity can be effectively balanced and optimized, thereby strengthening the overall structural strength and rigidity of the heat sink assembly and optimizing the overall heat dissipation performance of the heat sink assembly. On the other hand, the width of the heat dissipation channel formed between two adjacent heat sinks can be kept substantially consistent along the direction in which the heat sinks extend. Based on this, it can be ensured that when air flows through the heat dissipation channel, no area of ​​the heat dissipation channel will have a substantially uniform effect of gathering or diffusing the air, thereby substantially balancing the air flow rate in each area of ​​the heat dissipation channel, which can help to ensure and balance the heat dissipation performance of the heat dissipation channel, and can help to ensure and improve the heat dissipation performance of the heat dissipation assembly and the chassis.

[0017] In some embodiments, the plurality of heat sinks are arranged at equal intervals along the first direction.

[0018] By adopting the above solution, the gaps between any two adjacent heat sinks can be made equal, so that the sizes of the heat dissipation channels formed between any two adjacent heat sinks are basically the same. Based on this, the air circulation in each heat dissipation channel can be relatively balanced, thereby relatively balancing the heat exchange effects of the heat sink area and the heat sink area corresponding to each heat dissipation channel, achieving relatively balanced heat dissipation performance of each area of ​​the heat dissipation component, thereby effectively reducing the risk of heat accumulation in the area due to poor heat dissipation in a local area of ​​the heat dissipation component.

[0019] In some embodiments, a plurality of heat sinks are provided, and the heat sinks are intersected vertically and horizontally to form a plurality of cells, and each cell forms a heat dissipation channel.

[0020] By adopting the above solution, on the one hand, by crisscrossing the heat sinks vertically and horizontally, the heat sinks can be interconnected and supported, effectively strengthening the overall structural strength and rigidity of the heat sink assembly, thereby reducing the risk of damage to the heat sink assembly throughout the battery's life cycle, thereby ensuring and extending the service life of the heat sink assembly and ensuring that the heat dissipation performance of the box is long-lasting, stable, and reliable throughout the battery's life cycle. On the other hand, the multiple cells formed by the cross-sectional arrangement of the heat sinks can each form a single-sided open heat dissipation channel, significantly increasing the heat exchange area between each heat sink and the air, thereby facilitating heat exchange between the heat sink plate and the heat sink and the air flowing through the heat dissipation channel, effectively ensuring and improving the heat dissipation performance of the box.

[0021] In some embodiments, a surface of the heat dissipation plate close to the cavity is provided with thermal conductive adhesive.

[0022] By adopting this solution, the surface of the heat sink near the cavity can abut and contact the battery cells contained in the cavity through the thermally conductive adhesive. Therefore, when the battery cells contained in the cavity generate heat during charging and discharging, the thermally conductive adhesive in contact with the battery cells can efficiently and reliably transfer the heat generated by the battery cells to the heat sink, thereby improving the heat transfer efficiency. This effectively ensures and enhances the heat dissipation performance of the box.

[0023] In some embodiments, the heat dissipation plate includes a plurality of heat dissipation sub-plates, which are arranged in a matrix and interconnected to form the heat dissipation plate.

[0024] By adopting this solution, the desired heat sink shape can be easily and quickly assembled by first forming each heat sink panel separately, then arranging the panels in a matrix to form the desired shape, and finally connecting the abutting edges of adjacent heat sink panels. This effectively ensures and improves the processing convenience and efficiency of the heat sink, making it particularly suitable for the processing and forming of large heat sinks.

[0025] In some embodiments, adjacent heat dissipation panels are connected by welding.

[0026] By adopting the above solution, on the basis of facilitating the processing and forming of large heat dissipation panels, the connection stability between adjacent heat dissipation panels can be relatively guaranteed and improved by welding the adjacent heat dissipation panels together, thereby relatively guaranteeing and improving the overall structural strength and rigidity of the heat dissipation panel.

[0027] In some embodiments, the box body includes a first box body and a second box body, the second box body is connected to one end of the first box body and intersects with the first box body, and the heat dissipation component is arranged on the surface of the second box body close to the cavity.

[0028] By adopting the above solution, while maintaining the effectiveness of the box body, the surface of the second box body near the cavity can reliably support the heat dissipation assembly, and even firmly connect to the heat dissipation assembly, thereby conveniently and quickly stabilizing the installation position and installation state of the heat dissipation assembly relative to the box body, thereby effectively ensuring and improving the installation convenience and reliability of the heat dissipation assembly. Furthermore, by arranging the heat dissipation assembly on the surface of the second box body near the cavity, the heat dissipation assembly, especially the heat dissipation plate, can be arranged within the cavity, thereby facilitating the heat dissipation plate to abut and contact one or more battery cells contained in the cavity, and facilitating heat exchange between the heat dissipation plate and the battery cells in contact therewith.

[0029] In some embodiments, the heat dissipation assembly further includes a protective strip correspondingly disposed on a side of the heat sink away from the heat dissipation plate, and the protective strip is disposed to intersect with the heat sink.

[0030] By adopting the above solution, the heat sink can be protected accordingly by the protective strips to reduce the risk of direct external impact on the heat sink, thereby effectively reducing the risk of damage to the heat sink component throughout the life cycle of the battery, and can ensure and extend the service life of the heat sink component, and can ensure that the heat dissipation performance of the box is long-lasting, stable and reliable throughout the life cycle of the battery.

[0031] In some embodiments, surfaces of the protection strips away from the heat dissipation plate are located in the same plane.

[0032] By adopting the above solution, when foreign objects may contact or even impact the heat dissipation component, the surfaces of multiple protective strips away from the heat dissipation plate can jointly contact and receive the foreign objects, thereby realizing the combined protective effect of multiple protective strips, so as to reliably reduce the risk of foreign objects directly impacting the heat sink, thereby reliably reducing the risk of damage to the heat dissipation component throughout the life cycle of the battery, ensuring and extending the service life of the heat dissipation component, and ensuring that the heat dissipation performance of the box is long-lasting, stable and reliable throughout the life cycle of the battery.

[0033] In a second aspect, a battery is provided, comprising the above-mentioned box.

[0034] By adopting the above solution, the battery can ensure and improve the heat dissipation performance of the battery by applying the box provided by the embodiment of the present application, thereby effectively ensuring and improving the charging and discharging capacity and safety of the battery.

[0035] In a third aspect, an electrical device is provided, which includes the above-mentioned box or the above-mentioned battery.

[0036] By adopting the above solution, the electrical device can ensure and improve the safety of the electrical device by applying the box or battery provided in the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments of the present application or the exemplary technical description. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0038] FIG1 is a partial perspective view of a box provided by one embodiment of the present application;

[0039] FIG2 is a top view of the box provided in FIG1 ;

[0040] FIG3 is a schematic diagram of a partial structure of the box provided in FIG1 ;

[0041] FIG4 is an enlarged view of the area A provided in FIG3 ;

[0042] FIG5 is a top view of a box provided by another embodiment of the present application, wherein each heat sink is arranged to extend in a curved shape;

[0043] FIG6 is a top view of a box provided by another embodiment of the present application, wherein the heat sinks are arranged vertically and horizontally to form a plurality of cells;

[0044] FIG7 is a partial schematic diagram of a box provided in another embodiment of the present application, wherein the heat dissipation assembly includes a protective strip correspondingly arranged on a side of the heat sink away from the heat dissipation plate.

[0045] Among them, the reference numerals in the figures are:

[0046] 10-box body, 11-box body, 111-cavity, 112-first box body, 113-second box body, 12-heat dissipation assembly, 121-heat dissipation plate, 1211-heat dissipation sub-plate, 122-heat sink, 123-heat dissipation channel, 124-protective strip, 13-thermal conductive adhesive. Modes for Carrying Out the Invention

[0047] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clear and understandable, the present application is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0048] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0050] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0051] In the present application, a battery is a modular structure that includes one or more battery cells to provide higher voltage and capacity, such as a battery module, a battery module or a battery pack. In some cases, the battery generally includes a casing for encapsulating one or more battery cells. The casing can be dustproof, waterproof and protective for the one or more battery cells contained therein, which can reduce the impact of external liquids or other foreign matter on the charging and discharging of the battery cells, and can effectively protect and extend the service life of the battery. Among them, the battery cells may be, but are not limited to, lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries or magnesium-ion batteries, etc.

[0052] In actual battery usage scenarios, the battery cells contained within the battery box continuously generate heat during the charge and discharge process. If this heat accumulates and causes the battery cells to overheat, the battery may be prone to safety hazards such as thermal runaway, bulging, and explosion. Therefore, ensuring and improving the battery's heat dissipation performance is one of the keys to ensuring battery charge and discharge capacity and safety.

[0053] In some cases, a heat dissipation layer is sprayed onto the outside of the battery case. This layer consists of a phase-change material layer and a heat-dissipating oil film layer disposed outside the phase-change material layer. In actual use, the phase-change material layer actively absorbs heat from within the battery case and transfers it to the heat-dissipating oil film layer, thereby dissipating the heat to the external environment. However, as a coating applied to the outer surface of the battery case, the phase-change material layer is susceptible to damage over the battery's lifecycle, leading to reduced heat dissipation performance.

[0054] Therefore, some embodiments of the present application provide a box body, which can accommodate one or more battery cells through the cavity of the box body. And when the battery cells contained in the cavity generate heat during the charging and discharging process, the heat sink provided in the cavity can abut against the battery cells, so that the heat sink and the battery cells in contact with it can exchange heat, and the heat can be diffused to the heat sink, thereby greatly increasing the heat exchange area between the box body and the air, so that the heat sink and the heat sink can exchange heat and diffuse heat into the air. In this way, the heat dissipation performance of the box body provided by the embodiment of the present application can be effectively guaranteed and improved. Moreover, the heat dissipation assembly provided by the embodiment of the present application will have a certain structural strength and rigidity based on the above-mentioned structural design, and will not be easily damaged throughout the life cycle of the battery, thereby effectively ensuring that the heat dissipation performance of the box body can be long-lasting, stable and reliable throughout the life cycle of the battery.

[0055] The box provided in the embodiment of the present application is suitable for batteries and electrical devices using batteries. Among them, the electrical devices can be vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys and electric tools, etc. The vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. Spacecraft include airplanes, rockets, space shuttles and spacecraft, etc. Electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys and electric airplane toys, etc. Electric tools include metal cutting power tools, grinding power tools, assembly power tools and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators and electric planers, etc. This embodiment does not limit the type of electrical devices.

[0056] In order to illustrate the technical solution provided by this application, a detailed description is given below with reference to specific drawings and embodiments.

[0057] Referring to Figures 1, 2, 3, and 4, some embodiments of the present application provide a housing 10, comprising a housing body 11 and a heat dissipation assembly 12. The housing body 11 defines a cavity 111. The heat dissipation assembly 12 comprises a heat dissipation plate 121 disposed within the cavity 111, and heat dissipation fins 122 disposed on a side of the heat dissipation plate 121 away from the cavity 111, with the heat dissipation fins 122 intersecting the heat dissipation plate 121.

[0058] It should be noted that the box body 11 is the main component of the box body 10. It defines a cavity 111 within the box body 11, which can be used to accommodate one or more battery cells (not shown). The box body 11 provides comprehensive dust and water protection for the battery cells contained within the cavity 111, reducing the effects of external liquids or other foreign matter on the charging and discharging of the battery cells, effectively ensuring and extending the battery's service life.

[0059] As shown in FIG1 , the housing body 11 has a length direction X, a width direction Y, and a height direction Z. A heat dissipation assembly 12 is provided on at least one side of the housing body 11. Specifically, only one heat dissipation assembly 12 may be provided. In this case, the heat dissipation assembly 12 may be provided on one side of the housing body 11 along the height direction Z, as shown in FIG1 , or on one side of the housing body 11 along the length direction X, or on one side of the housing body 11 along the width direction Y. Alternatively, multiple heat dissipation assemblies 12 may be provided. In this case, the multiple heat dissipation assemblies 12 may be provided on different sides of the housing body 11.

[0060] On one side of the box body 11, a heat dissipation component 12 is set. The heat dissipation component 12 can cooperate with the box body 11 to provide dustproof, waterproof and protective protection for one or more battery cells accommodated in the cavity 111. It can cooperate with the box body 11 to reduce the impact of external liquids or other foreign matter on the charging and discharging of the battery cells, thereby effectively protecting and extending the service life of the battery.

[0061] It should also be noted that the heat dissipation assembly 12 includes a heat dissipation plate 121 and heat dissipation fins 122. The heat dissipation plate 121 is disposed in the cavity 111 so that the heat dissipation plate 121 abuts against and contacts one or more battery cells contained in the cavity 111, thereby facilitating heat exchange between the heat dissipation plate 121 and the battery cells in contact therewith. There are one or more heat dissipation fins 122. One or more heat dissipation fins 122 are disposed on the side of the heat dissipation plate 121 away from the cavity 111 to facilitate contact with the air and heat exchange.

[0062] The heat sink 122 and the heat sink 121 may be connected integrally or separately. When the heat sink 122 and the heat sink 121 are separately connected, the heat sink 122 and the heat sink 121 may be connected separately by, but not limited to, welding or other methods. This embodiment does not impose any limitation on the specific connection method between the heat sink 122 and the heat sink 121.

[0063] The heat dissipation plate 121 and the heat dissipation fins 122 may be made of the same thermally conductive material, or may be made of different thermally conductive materials, so that both the heat dissipation plate 121 and the heat dissipation fins 122 have thermal conductivity.

[0064] The heat sink 122 and the heat sink plate 121 are arranged to intersect, such that the surface of the heat sink 121 away from the cavity 111 and the side surfaces of the heat sink 122 along the thickness direction are arranged at an angle. Based on this, air can flow easily through the surface of the heat sink 121 away from the cavity 111 and the side surfaces of the heat sink 122 along the thickness direction. Therefore, the heat sink 121 and the heat sink 122, both of which have thermal conductivity, can transfer and exchange heat from the interior of the box 10 to the air, thereby achieving reliable heat dissipation.

[0065] Specifically, in actual application scenarios, when the battery cells housed in the cavity 111 of the box body 11 generate heat during the charging and discharging process, the heat generated by the battery cells can be directly and passively transferred to the heat sink 121 through the abutting contact between the battery cells and the heat sink 121, and then diffused to the heat sink 122 through the heat sink 121. At the same time, because air can flow through the heat sink 121 and the heat sink 122, the heat sink 121 and the heat sink 122 can exchange heat with the air over a large area, thereby heat-dissipating the heat from the heat sink 121 and the heat sink 122 into the air.

[0066] In summary, the case 10 provided in the embodiment of the present application can accommodate one or more battery cells through the cavity 111 of the case body 11. When the battery cells contained in the cavity 111 generate heat during the charging and discharging process, the heat dissipation plate 121 provided in the cavity 111 can abut against the battery cells, so that the heat dissipation plate 121 and the battery cells in contact therewith can exchange heat, and the heat can be diffused to the heat sink 122, thereby greatly increasing the heat exchange area between the case 10 and the air, so that the heat dissipation plate 121 and the heat sink 122 can exchange heat and diffuse heat into the air. In this way, the heat dissipation performance of the case 10 provided in the embodiment of the present application can be effectively guaranteed and improved. In addition, the heat dissipation assembly 12 provided in the embodiment of the present application will have a certain structural strength and rigidity based on the above-mentioned structural design, and will not be easily damaged throughout the life cycle of the battery, thereby effectively ensuring that the heat dissipation performance of the case 10 can be long-lasting, stable and reliable throughout the life cycle of the battery.

[0067] 1 , 2 , and 3 , in some embodiments of the present application, the heat sinks 122 are all arranged to extend in a straight line, that is, the extension paths of the heat sinks 122 are all straight lines, and the heat sinks 122 are all straight pieces.

[0068] By adopting the above solution, on the one hand, the processing of heat sink 122 can be facilitated, which can help simplify and optimize the overall structural design of heat sink 122 and heat dissipation plate 121. On the other hand, air can be guided through the straight sides of heat sink 122 to circulate smoothly along them, thereby facilitating reliable and effective heat exchange between the straight sides of heat sink 122 and the air, which can help ensure and improve the heat dissipation performance of heat dissipation assembly 12 and housing 10.

[0069] 5 , in some embodiments of the present application, the heat sink 122 is extended in a curved line, that is, the extension path of the heat sink 122 is a curved line, such as a wavy line.

[0070] By adopting the above solution, on the one hand, the shape of the heat sink 122 can be diversified, which can enrich and diversify the comprehensive structural design of the heat sink 122 and the heat dissipation plate 121. On the other hand, the curved side surfaces of the heat sink 122 can create a certain turbulent effect on the air flowing through it, thereby relatively reducing the flow rate of the air passing through the heat sink 122 and relatively increasing the residence time of the air passing through the heat sink 122. This facilitates sufficient and reliable heat exchange between the heat sink 122 and the air, which can help to ensure and improve the heat dissipation performance of the heat dissipation assembly 12 and the housing 10.

[0071] Referring to FIG. 2 , FIG. 3 , and FIG. 4 , in some embodiments of the present application, a plurality of heat sinks 122 are provided, and the plurality of heat sinks 122 are spaced apart along the first direction a, and a heat dissipation channel 123 is formed between two adjacent heat sinks 122 .

[0072] It should be noted that the number of heat sinks 122 is more than two. The plurality of heat sinks 122 are arranged at intervals along the first direction a, and the first direction a is parallel to the surface of the heat sink 121. The plurality of heat sinks 122 can be arranged parallel to each other, that is, in the extension direction of the heat sink 122, the spacing between two adjacent heat sinks 122 is equal everywhere; the plurality of heat sinks 122 can also be arranged non-parallel, that is, in the extension direction of the heat sink 122, there is a difference in the spacing between two adjacent heat sinks 122, for example, it can show a regular change of gradually increasing or gradually decreasing, or it can show an irregular change; this embodiment does not impose any restrictions on this. The plurality of heat sinks 122 can be arranged at equal intervals along the first direction a, or can be arranged at unequal intervals along the first direction a, and this embodiment does not impose any restrictions on this.

[0073] The gap between two adjacent heat sinks 122 can form a heat dissipation channel 123. The formed heat dissipation channel 123 is connected to the outside in a direction away from the heat sink 121, and passes through along the extension direction of the heat sink 122, thereby facilitating air circulation in the heat dissipation channel 123, and facilitating heat exchange between the heat sink 121 and the heat sink 122 and the air circulating in the heat dissipation channel 123.

[0074] Therefore, by adopting the above solution, multiple heat sinks 122 can be provided on the outside of the heat sink 121. Based on this, the heat exchange area between the heat sink assembly 12 and the housing 10 and the air can be effectively increased. In particular, the gaps between two adjacent heat sinks 122 can form multi-sided open heat dissipation channels 123, thereby facilitating air circulation in the heat dissipation channels 123 and facilitating heat exchange between the heat sink 121 and the heat sink 122 and the air flowing through the heat dissipation channels 123, thereby effectively improving the heat dissipation performance of the housing 10.

[0075] 2 , 3 , and 4 , in some embodiments of the present application, a plurality of heat sinks 122 are arranged parallel to each other, that is, in the extending direction of the heat sinks 122 , the distance between two adjacent heat sinks 122 is always equal.

[0076] By adopting the above solution, on the one hand, the layout of each heat sink 122 on the side of the heat sink 121 away from the cavity 111 can be effectively balanced and optimized, thereby strengthening the overall structural strength and rigidity of the heat sink assembly 12 and optimizing the overall heat dissipation performance of the heat sink assembly 12. On the other hand, the width of the heat dissipation channel 123 formed between two adjacent heat sinks 122 can be made substantially consistent along the extension direction of the heat sink 122. Based on this, it can be ensured that when air flows through the heat dissipation channel 123, any area of ​​the heat dissipation channel 123 will basically not produce a gathering or diffusion effect on the air, thereby basically balancing the flow rate of air flowing through each area of ​​the heat dissipation channel 123, which can help to ensure and balance the heat dissipation performance of the heat dissipation channel 123, and can help to ensure and improve the heat dissipation performance of the heat dissipation assembly 12 and the housing 10.

[0077] 2 , 3 , and 4 , in some embodiments of the present application, the plurality of heat sinks 122 are arranged at equal intervals along the first direction a. Specifically, the plurality of heat sinks 122 are arranged at equal intervals along the first direction a, and the gaps between any two adjacent heat sinks 122 are equal.

[0078] By adopting the above solution, the gaps between any two adjacent heat sinks 122 can be made equal, so that the sizes of the heat dissipation channels 123 formed between any two adjacent heat sinks 122 are basically the same. Based on this, the air circulation in each heat dissipation channel 123 can be relatively balanced, thereby relatively balancing the heat exchange effects of the heat sink 121 area and the heat sink 122 area corresponding to each heat dissipation channel 123, thereby achieving relatively balanced heat dissipation performance of each area of ​​the heat dissipation component 12, thereby effectively reducing the risk of heat accumulation in the area due to poor heat dissipation in a local area of ​​the heat dissipation component 12.

[0079] Please refer to FIG. 6 . In some embodiments of the present application, a plurality of heat sinks 122 are provided. The heat sinks 122 are intersected vertically and horizontally to form a plurality of cells. Each cell forms a heat dissipation channel 123 .

[0080] It should be noted that the number of heat sinks 122 is more than two. The heat sinks 122 are arranged in a mesh pattern, and each mesh is the above-mentioned unit cell. The multiple units formed by the cross-sectional arrangement of the heat sinks 122 can form a heat dissipation channel 123. The heat dissipation channel 123 formed is connected to the outside in a direction away from the heat sink 121, so that the heat dissipation channel 123 is open on one side, thereby facilitating the reciprocating flow of air in the heat dissipation channel 123 in a direction close to the heat sink 121 and in a direction away from the heat sink 121, and facilitating heat exchange between the heat sink 121 and the heat sink 122 and the air flowing in the heat dissipation channel 123.

[0081] Therefore, by adopting the above solution, on the one hand, by crisscrossing each heat sink 122 vertically and horizontally, each heat sink 122 can be interconnected and supported by each other, thereby effectively strengthening the overall structural strength and rigidity of the heat sink assembly 12, thereby reducing the risk of damage to the heat sink assembly 12 throughout the battery life cycle, thereby ensuring and extending the service life of the heat sink assembly 12, and ensuring that the heat dissipation performance of the housing 10 is long-lasting, stable, and reliable throughout the battery life cycle. On the other hand, the multiple cells formed by the vertical and horizontal intersection of each heat sink 122 can each form a single-sided open heat dissipation channel 123, and significantly increase the heat exchange area between each heat sink 122 and the air, thereby facilitating heat exchange between the heat sink plate 121 and the heat sink 122 and the air flowing through the heat dissipation channel 123, effectively ensuring and improving the heat dissipation performance of the housing 10.

[0082] Referring to Figures 1, 3, and 4, in some embodiments of the present application, a heat-conducting adhesive 13 is provided on the surface of the heat sink 121 near the cavity 111. Specifically, the heat-conducting adhesive 13 is applied to the surface of the heat sink 121 near the cavity 111. This embodiment does not limit the specific material of the heat-conducting adhesive 13.

[0083] By adopting the above solution, the surface of the heat sink 121 near the cavity 111 can abut and contact the battery cells contained in the cavity 111 through the thermally conductive adhesive 13. Based on this, when the battery cells contained in the cavity 111 generate heat during the charging and discharging process, the thermally conductive adhesive 13 abutting and contacting the battery cells can efficiently and reliably transfer the heat generated by the battery cells to the heat sink 121, thereby improving the heat transfer efficiency. This effectively ensures and enhances the heat dissipation performance of the housing 10.

[0084] Please refer to FIG. 3 and FIG. 4 . In some embodiments of the present application, the heat sink 122 is formed by an extrusion process.

[0085] By adopting the above solution, the heat sink 122 can be formed by an extrusion process, thereby ensuring and improving the processing convenience and processing efficiency of the heat sink 122, and also helping to reduce the processing cost of the heat sink 122.

[0086] Please refer to FIG. 3 . In some embodiments of the present application, the heat dissipation plate 121 includes a plurality of heat dissipation sub-plates 1211 . The heat dissipation sub-plates 1211 are arranged in a matrix and interconnected to form the heat dissipation plate 121 .

[0087] It should be noted that at least two heat dissipation panels 1211 are provided. By arranging multiple heat dissipation panels 1211 in a matrix and connecting the abutting edges of adjacent heat dissipation panels 1211, a heat dissipation plate 121 of a desired shape can be conveniently and quickly assembled. This embodiment does not limit the specific connection method used between adjacent heat dissipation panels 1211.

[0088] By adopting the above solution, the heat dissipation panels 1211 can be formed individually, arranged in a matrix to form the desired shape, and then connected at the abutting edges of adjacent heat dissipation panels 1211. This allows for convenient and rapid assembly to form the desired heat dissipation panel 121. This effectively ensures and improves the processing convenience and efficiency of the heat dissipation panel 121, and is particularly suitable for the processing and forming of large heat dissipation panels 121.

[0089] Of course, in other possible implementations, the heat dissipation plate 121 may be a whole plate structure, and this embodiment does not limit this.

[0090] 3 , in some embodiments of the present application, adjacent heat dissipation panels 1211 are connected by welding. For example, friction stir welding can be used to achieve a stable connection between adjacent heat dissipation panels 1211 .

[0091] By adopting the above solution, on the basis of facilitating the processing and forming of the large heat sink 121, the connection stability between adjacent heat sink sub-plates 1211 can be relatively guaranteed and improved by welding the adjacent heat sink sub-plates 1211, thereby relatively guaranteeing and improving the overall structural strength and rigidity of the heat sink 121.

[0092] Please refer to Figures 1 and 3. In some embodiments of the present application, the box body 11 includes a first box body 112 and a second box body 113. The second box body 113 is connected to one end of the first box body 112 and is arranged to intersect with the first box body 112. The heat dissipation assembly 12 is arranged on the surface of the second box body 113 close to the cavity 111.

[0093] It should be noted that the first box body 112 is the main component of the box body 11, and is mainly used to enclose and form the cavity 111. The second box body 113 is connected to one end of the first box body 112, specifically to the end of the first box body 112 where the heat dissipation assembly 12 is to be set. The second box body 113 and the first box body 112 can be connected as a whole or as a separate body. When the second box body 113 and the first box body 112 are connected as a separate body, the second box body 113 and the first box body 112 can be connected as a separate body by, but not limited to, welding or other methods. This embodiment does not limit the specific connection method between the second box body 113 and the first box body 112.

[0094] The second box body 113 extends toward the cavity 111 relative to the first box body 112, such that the second box body 113 intersects the first box body 112. The second box body 113 cooperates with the first box body 112 to enclose the cavity 111. The second box body 113 has a surface adjacent to the cavity 111.

[0095] The heat dissipation assembly 12 is disposed on the surface of the second housing 113 near the cavity 111. Specifically, the heat dissipation plate 121 of the heat dissipation assembly 12 is disposed on the surface of the second housing 113 near the cavity 111. A stable connection can be established between the surface of the second housing 113 near the cavity 111 and the heat dissipation plate 121 of the heat dissipation assembly 12. This embodiment does not limit the specific connection method between the surface of the second housing 113 near the cavity 111 and the heat dissipation plate 121 of the heat dissipation assembly 12. For example, stir friction welding can be used to achieve a stable connection therebetween.

[0096] Based on this, by adopting the above solution, on the basis of protecting the effectiveness of the box body 11, the surface of the second box body 113 on the side close to the cavity 111 can reliably support the heat dissipation assembly 12, and even firmly connect with the heat dissipation assembly 12, so as to conveniently and quickly stabilize the installation position and installation state of the heat dissipation assembly 12 relative to the box body 11, thereby effectively ensuring and improving the installation convenience and installation reliability of the heat dissipation assembly 12. In addition, by arranging the heat dissipation assembly 12 on the surface of the second box body 113 on the side close to the cavity 111, the heat dissipation assembly 12, especially the heat dissipation plate 121, can also be arranged in the cavity 111, so that the heat dissipation plate 121 can abut against and contact one or more battery cells contained in the cavity 111, and heat exchange between the heat dissipation plate 121 and the battery cells in contact therewith can be facilitated.

[0097] Please refer to FIG. 1 and FIG. 3 . In some embodiments of the present application, the second box body 113 is vertically arranged with respect to the first box body 112 .

[0098] It should be noted that the second box body 113 is connected to one end of the first box body 112 and extends vertically inward relative to the first box body 112 , so that the second box body 113 is vertically arranged with respect to the first box body 112 .

[0099] By adopting the above-mentioned scheme, the surface of the second box body 113 close to the cavity 111 can be flat, flush and perpendicular to the surface of the first box body 112. Based on this, the surface of the second box body 113 close to the cavity 111 can abut and contact the heat dissipation component 12 over a large area, thereby forming a reliable and effective support effect for the heat dissipation component 12, which can help to stabilize the installation position and installation state of the heat dissipation component 12 relative to the box body 11.

[0100] 7 and 1 , in some embodiments of the present application, the heat dissipation assembly 12 further includes a protective strip 124 correspondingly disposed on a side of the heat sink 122 away from the heat dissipation plate 121 , and the protective strip 124 is disposed to intersect with the heat sink 122 .

[0101] It should be noted that the protective strip 124 is connected to the side of the heat sink 122 away from the heat dissipation plate 121. The protective strip 124 and the heat sink 122 can be connected integrally or separately. When the protective strip 124 and the heat sink 122 are separately connected, the protective strip 124 and the heat sink 122 can be connected by, but not limited to, welding or other methods. This embodiment does not limit the specific connection method used between the protective strip 124 and the heat sink 122. The protective strip 124 and the heat sink 122 are arranged to intersect, and the protective strip 124 and the heat sink 122 can form a T-shaped or L-shaped shape.

[0102] By adopting the above solution, the heat sink 122 can be protected accordingly by the protective strip 124 to reduce the risk of direct external impact on the heat sink 122, thereby effectively reducing the risk of damage to the heat sink assembly 12 throughout the life cycle of the battery, and can ensure and extend the service life of the heat sink assembly 12, and can ensure that the heat dissipation performance of the box 10 is long-lasting, stable and reliable throughout the life cycle of the battery.

[0103] Please refer to FIG. 7 and FIG. 1 . In some embodiments of the present application, the surfaces of the protection strips 124 away from the heat dissipation plate 121 are located in the same plane.

[0104] It should be noted that each protective strip 124 has a surface close to the heat sink 121 (i.e., a surface connected to the heat sink 122), and a surface away from the heat sink 121 (i.e., a surface away from the heat sink 122). The surfaces of each protective strip 124 away from the heat sink 121 are flush and flat on the same plane.

[0105] By adopting the above-mentioned solution, when foreign objects may contact or even impact the heat dissipation assembly 12, the surfaces of multiple protective strips 124 away from the heat dissipation plate 121 can jointly contact and receive the foreign objects, thereby realizing the combined protective effect of multiple protective strips 124, so as to reliably reduce the risk of foreign objects directly impacting the heat sink 122, thereby reliably reducing the risk of damage to the heat dissipation assembly 12 throughout the life cycle of the battery, ensuring and extending the service life of the heat dissipation assembly 12, and ensuring that the heat dissipation performance of the box 10 is long-lasting, stable and reliable throughout the life cycle of the battery.

[0106] In particular, when the box 10 is installed and placed in the posture of "heat dissipation component 12 facing downward", the surfaces of the protective strips 124 away from the heat dissipation plate 121 can contact the platform together, thereby ensuring and improving the stability of the box 10 when placed on the platform.

[0107] Please refer to FIG. 1 . Some embodiments of the present application further provide a battery, which includes a box 10 provided in an embodiment of the present application.

[0108] It should be noted that a battery is a modular structure that includes one or more battery cells to provide higher voltage and capacity. For example, it can be a battery module, battery pack, or battery pack. The battery includes one or more battery cells and a housing 10 for enclosing the one or more battery cells. The housing 10 uses the housing 10 provided in the embodiments of the present application.

[0109] By adopting the above solution, the battery can ensure and improve the heat dissipation performance of the battery by applying the box body 10 provided in the embodiment of the present application, thereby effectively ensuring and improving the charging and discharging capacity and safety of the battery.

[0110] Please refer to FIG1 . Some embodiments of the present application further provide an electrical device, which includes the above-mentioned battery.

[0111] It should be noted that the electrical device may be a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, an electric tool, and the like. The vehicle may be a fuel vehicle, a gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, and the like. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, and the like. Electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, and the like. Electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, and the like. This embodiment does not limit the type of electrical device.

[0112] By adopting the above solution, the electrical device can ensure and improve the safety of the electrical device by applying the box 10 or the battery provided in the embodiment of the present application.

[0113] The above are merely optional embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included within the scope of the claims of the present application.

Claims

1. A box, wherein: The box includes: A box body, wherein a cavity is provided inside the box body; The heat dissipation component includes a heat dissipation plate arranged in the cavity and a heat dissipation fin arranged on a side of the heat dissipation plate away from the cavity, and the heat dissipation fin is arranged to intersect with the heat dissipation plate.

2. The box according to claim 1, wherein: The heat sink is arranged to extend in a straight line or in a curved line.

3. The box according to claim 1 or 2, wherein: There are a plurality of heat sinks, which are spaced apart along a first direction, and a heat dissipation channel is formed between two adjacent heat sinks.

4. The box according to claim 3, wherein: The plurality of heat sinks are arranged parallel to each other.

5. The box according to claim 4, wherein: The plurality of heat sinks are arranged at equal intervals along the first direction.

6. The box according to claim 1, wherein: There are a plurality of heat sinks, each of which is cross-linked to form a plurality of cells, and each of the cells forms a heat dissipation channel.

7. The box according to any one of claims 1 to 6, wherein: A surface of the heat dissipation plate close to the cavity is provided with heat conductive glue.

8. The box according to any one of claims 1 to 6, wherein: The heat dissipation plate includes a plurality of heat dissipation sub-plates, which are arranged in a matrix and connected to each other to form the heat dissipation plate.

9. The box according to claim 8, wherein: Adjacent heat dissipation panels are connected by welding.

10. The box according to any one of claims 1 to 6, wherein: The box body includes a first box body and a second box body, the second box body is connected to one end of the first box body and is arranged to intersect with the first box body, and the heat dissipation component is arranged on the surface of the second box body close to the cavity.

11. The housing according to claim 10, wherein: The second box body is arranged perpendicular to the first box body.

12. The box according to any one of claims 1 to 11, wherein: The heat dissipation assembly further includes a protection strip correspondingly arranged on a side of the heat dissipation fin away from the heat dissipation plate, and the protection strip is arranged to intersect with the heat dissipation fin.

13. The housing according to claim 12, wherein: Surfaces of the protection strips away from the heat dissipation plate are located in the same plane.

14. A battery, wherein: The battery comprises the casing according to any one of claims 1-13.

15. An electrical device, wherein: The electrical device comprises the box according to any one of claims 1 to 13 or the battery according to claim 14.

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