Cabinet, cabinet assembly, battery and electric device

Abstract

The application provides a box, a box assembly, a battery and an electric device, and relates to the technical field of batteries. The box comprises a box body and a mounting structure; the box body has an opening and an end wall arranged oppositely; the mounting structure is arranged on the end wall and overlaps the end wall in the thickness direction of the end wall; and the mounting structure is used for connecting the box body and the device. The mounting structure is arranged on the end wall of the box, which can reduce the size of the part of the mounting structure extending to the lateral direction of the box body or avoid the mounting structure extending to the lateral direction of the box body, thereby reducing the external space occupied by the mounting structure in the lateral direction of the box body or avoiding the external space occupied by the mounting structure in the lateral direction of the box body. Therefore, the size of the internal space of the box body in the lateral direction can be increased, the space originally occupied by the mounting structure in the lateral direction of the box body can be used for accommodating battery monomers, and the energy density and the grouping efficiency of the battery with the box can be improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more specifically, to a housing, housing assembly, battery, and electrical device. Background Technology

[0002] Currently, the most commonly used batteries in vehicles are lithium-ion batteries. As a rechargeable battery, lithium-ion batteries have advantages such as high energy density, high power density, many cycles, and long storage time.

[0003] A battery typically consists of a casing and individual battery cells, with the individual cells housed within the casing. A larger casing generally improves the battery's energy density; however, an excessively large casing can severely limit the battery pack efficiency. Therefore, improving battery pack efficiency has become a pressing issue in the field of battery technology. Summary of the Invention

[0004] This application provides a housing, housing assembly, battery, and electrical equipment to improve battery pack efficiency.

[0005] In a first aspect, embodiments of this application provide a box, including a box body and a mounting structure; the box body has an opening and an end wall arranged opposite to each other; the mounting structure is disposed on the end wall, and when viewed along the thickness direction of the end wall, the mounting structure overlaps with the end wall, and the mounting structure is used to connect the box body and the equipment.

[0006] In the above technical solution, the mounting structure is set on the end wall of the box body, which can reduce the size of the part of the mounting structure extending to the side of the box body or avoid the mounting structure extending to the side of the box body. This reduces or avoids the mounting structure occupying the external space of the box body on the side. By increasing the internal space of the box body along its side, the space originally occupied by the mounting structure on the side of the box body can be used to accommodate battery cells, which is beneficial to improving the energy density and packing efficiency of the batteries with this box body.

[0007] In some embodiments of the first aspect of this application, the mounting structure includes mounting holes.

[0008] In the above technical solution, the mounting component is a mounting hole set on the end wall, which helps to simplify the structure of the box and reduce its weight.

[0009] In some embodiments of the first aspect of this application, the mounting hole is provided with internal threads.

[0010] In the above technical solution, the mounting hole is provided with an internal thread, so the equipment can be threaded with the mounting hole to realize the connection between the box body and the equipment. The connection method is simple and convenient and has good stability.

[0011] In some embodiments of the first aspect of this application, the mounting hole is a blind hole.

[0012] In the above technical solution, the mounting hole is a blind hole, which means that the mounting hole will not penetrate the end wall, reducing the impact of the mounting hole setting on the structural strength of the end wall. It also eliminates the need for sealing treatment at the mounting hole, reducing the manufacturing difficulty of the enclosure.

[0013] In some embodiments of the first aspect of this application, the housing includes a mounting member installed on the end wall, and the mounting structure is disposed on the mounting member.

[0014] In the above technical solution, the mounting structure is set on the mounting component installed on the end wall, which can realize the connection between the box body and the equipment, making the connection between the box body and the equipment more convenient.

[0015] In some embodiments of the first aspect of this application, the mount is welded to the end wall.

[0016] In the above technical solution, welding the mounting component to the end wall is not only a convenient connection method, but also ensures good connection strength between the mounting component and the end wall, resulting in a large load-bearing capacity.

[0017] In some embodiments of the first aspect of this application, a first weld is formed between the mount and the end wall, the first weld being located on the outer side of the end wall.

[0018] In the above technical solution, the first weld is located on the outer side of the end wall, which allows the end wall and the mounting component to be welded on the outside of the end wall, making the welding between the end wall and the mounting component more convenient.

[0019] In some embodiments of the first aspect of this application, a second weld is formed between the mount and the end wall, the second weld being located on the inner side of the end wall.

[0020] In the above technical solution, the mounting component and the end wall are welded together on the inner side of the end wall to form a second weld, and the mounting component and the end wall are welded together on the outer side of the end wall to form a second weld. Thus, there are two welding positions between the end wall and the mounting component, which further improves the connection strength between the end wall and the mounting component.

[0021] In some embodiments of the first aspect of this application, at least a portion of the mount is embedded in the end wall.

[0022] In the above technical solution, at least a portion of the mounting component is embedded in the end wall, so that the mounting component and the end wall share space in the thickness direction of the end wall, thereby reducing or avoiding the mounting component occupying the external space of the box body, thus reducing the overall structural size of the box. Furthermore, the fact that at least a portion of the mounting component is embedded in the end wall can increase the bonding area between the mounting component and the end wall, thereby improving the stability of the connection between the end wall and the mounting component.

[0023] In some embodiments of the first aspect of this application, one end of the mount is flush with the outer surface of the end wall; and / or, one end of the mount protrudes from the outer surface of the end wall.

[0024] In the above technical solutions, if one end of the mounting component is flush with the outer surface of the end wall, it avoids the mounting component extending beyond the outer surface of the end wall and occupying the space outside the end wall, thereby further reducing the volume of the enclosure. If one end of the mounting component protrudes from the outer surface of the end wall, it facilitates the mounting component's cooperation with the equipment to achieve the connection between the enclosure body and the equipment.

[0025] In some embodiments of the first aspect of this application, the box body further includes a partition beam located within the box body and disposed on the end wall, wherein, viewed along the thickness direction of the end wall, the mounting structure overlaps with the partition beam.

[0026] In the above technical solution, a partition beam is set inside the box body and placed on the end wall. When viewed in the thickness direction of the end wall, the mounting structure overlaps with the partition beam. The partition beam can enhance the structural strength of the area corresponding to the mounting structure on the end wall and reduce the risk of damage due to overload of the end wall.

[0027] In some embodiments of the first aspect of this application, the mounting structure includes a mounting member installed on the end wall, a portion of which is embedded in the end wall and another portion is connected to the partition beam.

[0028] In the above technical solution, one part of the mounting component is embedded in the end wall and the other part is connected to the partition beam. The end wall and the mounting component share space, which reduces or avoids the mounting component occupying the external space of the box body, thereby reducing the overall structural size of the box body. Furthermore, since the mounting component is connected to the end wall and the partition beam, when the mounting component connects the box body to the equipment, the end wall and the partition beam can jointly bear the weight of the box body and its internal structure, reducing the risk of fatigue damage to the end wall.

[0029] In some embodiments of the first aspect of this application, the mounting member is welded to the partition beam.

[0030] In the above technical solution, welding the mounting component to the partition beam not only facilitates the connection but also ensures a strong connection between the mounting component and the partition beam, resulting in a greater load-bearing capacity.

[0031] In some embodiments of the first aspect of this application, a third weld is formed between the mount and the partition beam, the third weld being located on the side of the partition beam opposite to the end wall.

[0032] In the above technical solution, the third weld formed by welding the mounting component and the partition beam is located on the side of the partition beam away from the end wall. Therefore, the welding of the mounting component and the partition beam can be carried out on the side of the partition beam away from the end wall, making the welding of the mounting component and the partition beam more convenient.

[0033] In some embodiments of the first aspect of this application, the mounting element is a sleeve having internal threads.

[0034] In the above technical solution, the mounting component is a sleeve with an internal thread inside. The mounting component is threaded with the equipment to mount the box onto the electrical equipment. The mounting method is simple, convenient and has good stability.

[0035] In some embodiments of the first aspect of this application, a protective structure is provided on the outer side of the end wall, the protective structure being used to buffer and / or insulate the end wall.

[0036] In the above technical solution, the protective structure can improve the impact resistance of the end wall and / or help maintain a basically constant internal temperature of the enclosure.

[0037] In some embodiments of the first aspect of this application, the mounting structure protrudes beyond the protective structure.

[0038] In the above technical solution, the mounting structure protrudes from the protective structure, which facilitates the cooperation between the mounting structure and the equipment and reduces the risk of interference between the connection position of the mounting structure and the equipment and the protective structure.

[0039] In some embodiments of the first aspect of this application, the interior of the end wall is formed with a flow channel for accommodating the heat exchange medium.

[0040] In the above technical solution, the flow channel formed inside the end wall can accommodate the heat exchange medium, so the end wall can play the role of regulating the temperature of the internal structure of the box body. It is not necessary to set up thermal management components inside the box body, thereby improving the utilization rate of the internal space of the battery with the box body, which is conducive to improving the energy density of the battery with the box body.

[0041] In some embodiments of the first aspect of this application, when viewed along the thickness direction of the end wall, the mount does not overlap with the flow channel.

[0042] In the above technical solution, the mounting component and the flow channel do not overlap, and the mounting component and the flow channel do not interfere with each other. This can prevent the heat exchange medium in the flow channel from reducing the service life of the mounting component, and also prevent the mounting component from affecting the flow of the heat exchange medium in the flow channel and reducing the heat exchange efficiency.

[0043] In some embodiments of the first aspect of this application, the end wall is provided with an inlet for the heat exchange medium to flow into the flow channel and an outlet for the heat exchange medium to flow out of the flow channel.

[0044] In the above technical solution, the end wall is provided with a heat exchange medium inlet and outlet, which allows the heat exchange medium to flow in the flow channel and to exchange heat more quickly, thereby improving the heat exchange efficiency.

[0045] In some embodiments of the first aspect of this application, the end wall is provided with a plurality of the outlets.

[0046] In the above technical solution, the end wall is provided with multiple outlets, which is conducive to the rapid discharge of heat exchange medium from the flow channel. When the heat exchange medium is a cooling medium, it can quickly remove the heat inside the box, thereby rapidly reducing the temperature inside the box.

[0047] In some embodiments of the first aspect of this application, the housing includes a plurality of the mounting structures, which are arranged at intervals.

[0048] In the above technical solution, the enclosure includes multiple spaced mounting structures. Multiple mounting positions can be formed between the enclosure body and the equipment, which not only makes the connection between the enclosure body and the electrical equipment more stable, but also reduces the load borne by each mounting position.

[0049] In some embodiments of the first aspect of this application, the box body further includes a sidewall surrounding the outer periphery of the end wall. Along a first direction, the sidewall includes two opposing first sidewalls, and the mounting member does not extend beyond the outer surface of the first sidewall.

[0050] In the above technical solution, if the mounting structure does not extend beyond the outer side of the first sidewall, then along the first direction, the mounting will not extend to the side of the box body, and the mounting will not occupy the space of the box body on the outer side of the first sidewall. Therefore, by increasing the size of the internal space of the box body along the first direction, the space originally occupied by the mounting in the box body along the first direction can be used to accommodate battery cells, thereby improving the energy density and packing efficiency of the batteries with the box body.

[0051] In some embodiments of the first aspect of this application, the housing includes a first flange portion disposed at one end of the first sidewall away from the end wall, and at least a portion of the first flange portion protrudes from the inner surface of the sidewall.

[0052] In the above technical solution, compared with the case where the first flange protrudes entirely from the outer side of the sidewall, at least a portion of the first flange protrudes from the inner side of the sidewall. In this case, the box body and the first flange share a portion of space, which can reduce the lateral external space occupied by the first flange on the box body. By increasing the lateral dimension of the internal space of the box body, the space originally occupied by the mounting components on the lateral side of the box body can be used to accommodate battery cells, thereby improving the energy density and packing efficiency of the batteries equipped with the box body.

[0053] In some embodiments of the first aspect of this application, the box body further includes a side wall surrounding the outer periphery of the end wall, and the side wall is provided with a lifting structure for cooperating with a lifting device to move the box body.

[0054] In the above technical solution, the hoisting structure facilitates the assembly and transfer of the container.

[0055] In some embodiments of the first aspect of this application, the lifting structure includes a first lifting hole for engaging with the lifting device to lock the lifting device to the box body.

[0056] In the above technical solution, the lifting structure includes a first lifting hole. The lifting device and the housing body are locked together through the first lifting hole, facilitating the movement of the housing body in conjunction with the lifting device. Compared to installing lifting components protruding from the outer surface of the side wall, providing a first lifting hole on the side wall avoids occupying the external space of the housing body in its lateral direction. This allows for an increase in the lateral dimension of the housing body's internal space, freeing up the space originally occupied by the mounting components to accommodate individual battery cells. This, in turn, improves the energy density and packing efficiency of the batteries housed in this housing.

[0057] In some embodiments of the first aspect of this application, the lifting structure includes a second lifting hole for positioning and engaging with the lifting device.

[0058] In the above technical solution, the setting of the second lifting hole can keep the lifting device and the box body in a relatively accurate position before the lifting device mates with the first lifting hole, so that the lifting device can accurately mate with the first lifting hole to lock the lifting device and the box body.

[0059] In some embodiments of the first aspect of this application, the hoisting structure includes two second hoisting holes, which are respectively located on both sides of the first hoisting hole.

[0060] In the above technical solution, second lifting holes are provided on both sides of the first lifting hole, which can further accurately position the lifting device and the first lifting hole so that the lifting device can be accurately locked to the box body at the first lifting hole.

[0061] In some embodiments of the first aspect of this application, the first lifting hole is a threaded hole; and / or, the second lifting hole is a slotted hole.

[0062] In the above technical solution, if the first lifting hole is a threaded hole, the lifting device and the first lifting hole can be threaded together to lock the box body and the lifting device. The locking method is simple and convenient, and can improve the efficiency of lifting operations. If the second lifting hole is an oblong hole, after the lifting device is positioned and engaged with the second lifting hole, the risk of the lifting device rotating in the second lifting hole is small, which can improve the stability of positioning.

[0063] In some embodiments of the first aspect of this application, the sidewall is provided with a plurality of the hoisting structures, and the plurality of hoisting structures are arranged at intervals.

[0064] In the above technical solution, the side wall is provided with multiple hoisting structures arranged at intervals. The lifting equipment can cooperate with multiple hoisting structures, or multiple lifting equipment can cooperate with multiple hoisting structures, to move the box body, which can improve the stability of the hoisting operation.

[0065] Secondly, embodiments of this application provide a box assembly, including a cover and the box assembly provided in any embodiment of the first aspect, wherein the cover is used to seal the opening.

[0066] In the above technical solution, the mounting component of the box provided in the first aspect embodiment occupies less or no external space on the side of the box body. Therefore, the box assembly with the box body can increase the lateral dimension of the internal space of the box body and use the space originally occupied by the mounting component on the side of the box body to accommodate the battery cells, thereby improving the energy density and packing efficiency of the battery with the box assembly.

[0067] Thirdly, embodiments of this application also provide a battery, including a battery cell and a housing assembly provided in the second aspect embodiment, wherein the battery cell is housed within the housing assembly.

[0068] In the above technical solution, the internal space of the housing assembly provided by the second aspect embodiment can accommodate more battery cells, and the battery with the housing assembly can have higher energy density and packing efficiency.

[0069] Fourthly, embodiments of this application provide an electrical device, including the battery provided in the third aspect embodiment. Attached Figure Description

[0070] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0071] Figure 1 This application provides structural schematic diagrams of vehicles for some embodiments;

[0072] Figure 2 Exploded views of batteries provided in some embodiments of this application;

[0073] Figure 3 This application provides schematic diagrams of the assembled housing assembly structure for some embodiments.

[0074] Figure 4 Exploded views of the housing assembly provided in some embodiments of this application;

[0075] Figure 5 This is a schematic diagram of the structure of the box provided in some embodiments of this application;

[0076] Figure 6 A schematic diagram of the housing from another perspective, provided for some embodiments of this application;

[0077] Figure 7 A view of the housing provided in some embodiments of this application, viewed from the opening side of the housing body;

[0078] Figure 8 for Figure 7 A sectional view along line A1-A1;

[0079] Figure 9 A view of the housing provided in some embodiments of this application, viewed from the opening side of the housing body;

[0080] Figure 10 for Figure 9 A sectional view along line A2-A2;

[0081] Figure 11 A view of the housing as seen from the opening side of the housing body, provided for some embodiments of this application;

[0082] Figure 12 for Figure 11 A sectional view along line A3-A3;

[0083] Figure 13 for Figure 12 Enlarged view at point B1;

[0084] Figure 14 for Figure 12 Schematic diagram of the middle box body;

[0085] Figure 15 for Figure 14 Enlarged view at B2;

[0086] Figure 16 This is a schematic diagram of the structure of the mount provided in some embodiments of this application;

[0087] Figure 17 Structural views of the housing are provided for further embodiments of this application;

[0088] Figure 18 A view of the housing provided in some further embodiments of this application, viewed from the opening side of the housing body;

[0089] Figure 19 for Figure 18 A sectional view along line A4-A4;

[0090] Figure 20 for Figure 19 Enlarged view at B3;

[0091] Figure 21 for Figure 19 A schematic diagram of the structure of the box body in the middle;

[0092] Figure 22 for Figure 21 Enlarged view at B4 in the middle;

[0093] Figure 23 for Figure 19 Enlarged view at B5 in the middle;

[0094] Figure 24 This is a schematic diagram of the structure of the box body provided in some other embodiments of this application;

[0095] Figure 25 for Figure 24 Sectional view along line A5-A5;

[0096] Figure 26 for Figure 24 Enlarged view at B6;

[0097] Figure 27 This is a structural schematic diagram of the box provided in some embodiments of this application.

[0098] Icons: 1000 - Vehicle; 100 - Battery; 10 - Battery cell; 20 - Housing assembly; 21 - Housing; 211 - Housing body; 2111 - Opening; 2112 - End wall; 21121 - Outer surface of end wall; 21122 - Inner surface of end wall; 21123 - Outer surface of end wall; 21124 - Flow channel; 21125 - Mounting slot; 2113 - Side wall; 21131 - First side wall; 21 132 - Second sidewall; 21133 - Third sidewall; 2114 - First flange; 2115 - Second flange; 2116 - Third flange; 212 - Mounting structure; 2121 - Mounting hole; 213 - Mounting component; 21221 - First connecting section; 21222 - Second connecting section; 21223 - First welding conical surface; 21224 - Second welding conical surface; 2123 - First mounting hole; 2123 1-First hole segment; 21232-Second hole segment; 21233-First conical surface; 21234-First cylindrical surface; 21235-Second conical surface; 2124-First weld; 2125-Second weld; 2126-Separating beam; 21261-Second mounting hole; 21262-Third conical surface; 21263-Third cylindrical surface; 21264-Third hole segment; 21265-Fourth hole segment; 2128- Protective structure; 2129-Inlet; 2130-Outlet; 2131-First pipe; 2132-Second pipe; 2133-Lifting structure; 21331-First lifting hole; 21332-Second lifting hole; 2134-Third weld; 2135-Blocking part; 22-Cover; 23-Seal; 200-Controller; 300-Motor; X-Thickness direction of end wall; Y-First direction; Z-Second direction. Detailed Implementation

[0099] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0100] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0101] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0102] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0103] In the description of the embodiments of this application, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on this application. Furthermore, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0104] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0105] The inventors discovered that the battery includes a housing assembly and individual battery cells. The housing assembly includes a housing body and a mounting structure. The electrical equipment and the housing body are connected on the side of the housing body through the mounting structure. This causes the mounting structure to occupy a large space on the side of the housing body, preventing the housing body from increasing its internal space size along its side, which severely restricts the battery packing efficiency.

[0106] Based on the above considerations, in order to improve the battery pack efficiency, the inventors conducted in-depth research and designed a housing. The housing body has openings and end walls arranged in opposite directions. The mounting structure of the housing is installed on the end wall of the housing body. When viewed along the thickness direction of the end wall, the mounting structure overlaps with the end wall.

[0107] The mounting structure is located on the end wall of the enclosure. This reduces or prevents the mounting structure from extending to the side of the enclosure body, thereby reducing or preventing the mounting structure from occupying the external space of the enclosure body on the side. This allows the internal space of the enclosure body to be increased along its side, and the space originally occupied by the mounting structure on the side of the enclosure body can be used to accommodate individual battery cells. This is beneficial for improving the energy density and packing efficiency of batteries equipped with this enclosure.

[0108] 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.

[0109] For ease of explanation, the following embodiments will be described using a vehicle 1000 as an example of an electrical device according to an embodiment of this application.

[0110] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. 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 100 is disposed inside the vehicle 1000, and the battery 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery 100 can be used to power the vehicle 1000; for example, the battery 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 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during startup, navigation, and driving.

[0111] In some embodiments of this application, the battery 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.

[0112] Please refer to Figure 2 , Figure 2This is an exploded view of a battery 100 provided in some embodiments of this application. The battery 100 includes a battery cell 10 and a housing assembly 20. The housing assembly 20 provides a receiving space for the battery cell 10, and the housing assembly 20 can adopt various structures. In some embodiments, the housing assembly 20 may include a housing 21 and a cover 22, which cover each other so that the housing 21 and the cover 22 together define a receiving space for receiving the battery cell 10. The housing 21 may be a hollow structure with an opening 2111 at one end to form a receiving cavity for receiving the battery cell 10, and the cover 22 may be a plate-like structure that covers the opening side of the housing 21 so that the housing 21 and the cover 22 together define the receiving space; the housing 21 and the cover 22 may also be hollow structures with an opening 2111 on one side to form a receiving cavity for receiving the battery cell 10, and the opening side of the housing 21 covers the opening side of the cover 22. Of course, the box assembly 20 formed by the box body 21 and the cover 22 can be of various shapes, such as cylinder, cuboid, etc. Figure 2 , Figure 3 and Figure 4 The diagram shows a case where the housing 21 is a hollow structure with one end open, and the cover 22 is a plate-like structure. A sealing element 23 can also be provided between the housing 21 and the cover 22. The housing 21, the cover 22, and the sealing element 23 together form a sealed space to accommodate the battery cell 10.

[0113] In battery 100, there can be multiple battery cells 10, which can be connected in series, parallel, or in a mixed manner. A mixed connection means that multiple battery cells 10 are connected in both series and parallel configurations. Multiple battery cells 10 can be directly connected in series, parallel, or in a mixed manner, and then the entire assembly of multiple battery cells 10 is housed within the housing assembly 20. Alternatively, battery 100 can also be composed of multiple battery cells 10 first connected in series, parallel, or in a mixed manner to form a battery module, and then multiple battery modules are connected in series, parallel, or in a mixed manner to form a whole, which is also housed within the housing assembly 20. Battery 100 may also include other structures; for example, it may include a busbar component for electrical connection between multiple battery cells 10.

[0114] Each battery cell 10 can be a secondary battery 100 or a primary battery 100; it can also be a lithium-sulfur battery 100, a sodium-ion battery 100, or a magnesium-ion battery 100, but is not limited to these. The battery cell 10 can be cylindrical, flat, cuboid, or other shapes.

[0115] like Figures 5-8As shown, in some embodiments, the enclosure 21 includes an enclosure body 211 and a mounting structure 212; the enclosure body 211 has an opening 2111 and an end wall 2112 arranged opposite to each other; the mounting structure 212 is disposed on the end wall 2112, and when viewed along the thickness direction X of the end wall, the mounting structure 212 overlaps with the end wall 2112, and the mounting structure 212 is used for the enclosure body 211 and the equipment.

[0116] The end wall 2112 can be a plate-like structure. The shape of the end wall 2112 can be various, such as a rectangular plate, a circular plate, etc., and this application does not limit this. The opening 2111 of the housing body 211 and the end wall 2112 are arranged opposite to each other along the thickness direction X of the end wall. The opening 2111 of the housing body 211 allows the battery cell 10 to enter the space formed by the housing body 211; or the opening 2111 of the housing body 211 allows the battery cell 10 to be placed on the end wall 2112, so that the end wall 2112 can support the battery cell 10.

[0117] When viewed along the thickness direction X of the end wall, the mounting structure 212 overlaps with the end wall 2112. This can be understood as the projection of the mounting structure 212 along the thickness direction X of the end wall at least partially overlapping. Thus, when viewed along the thickness direction X of the end wall, the end wall 2112 and the mounting structure 212 share at least a portion of the space.

[0118] The mounting structure 212 is used to connect the container body 211 to equipment, including but not limited to electrical equipment, transportation equipment, and storage equipment. The mounting structure 212 can be a through hole, blind hole, threaded hole, hook, slide rail, guide rail, or latch. The mounting structure 212 can be a structure directly formed on the end wall 2112, integrally molded with the end wall 2112. For example, the mounting structure 212 can be a threaded hole machined on the end wall 2112, or a track integrally extruded with the end wall 2112; the mounting structure 212 can also be formed on other parts connected to the end wall 2112, such as a threaded hole on a sleeve, nut, or mounting beam, or a track on a guide rail.

[0119] After the battery 100 with the housing 21 is connected to the electrical equipment, the end wall 2112 can be located in different positions relative to the battery cell 10. For example, the end wall 2112 can be located below the battery cell 10 and support the battery cell 10. In this case, the end wall 2112 is the bottom wall of the housing 211 and bears at least part of the weight of the battery cell 10. Alternatively, the end wall 2112 can also be located above the battery cell 10. In this case, the end wall 2112 is the top wall of the housing 211.

[0120] The mounting structure 212 is disposed on the end wall 2112 of the housing 21. This reduces or prevents the mounting structure 212 from extending to the side of the housing body 211, thereby reducing or preventing the mounting structure 212 from occupying the lateral external space of the housing body 211. This allows for an increase in the lateral dimension of the internal space of the housing body 211, enabling the space originally occupied by the mounting structure 212 to be used to accommodate the battery cells 10. This, in turn, improves the energy density and packing efficiency of the battery 100 equipped with the housing 21. In this embodiment, the lateral direction of the housing body 211 refers to any direction within the direction perpendicular to the thickness X of the end wall.

[0121] The mounting structure 212 can take many forms, such as... Figures 7-10 As shown, in some embodiments, the mounting structure 212 includes a mounting hole 2121. The mounting hole 2121 is directly disposed on the end wall 2112. Along the thickness direction X of the end wall, the mounting hole 2121 is recessed from the side of the end wall 2112 away from the battery cell 10 towards the battery cell 10 to form the mounting hole 2121. The mounting hole 2121 can be a round hole, a square hole, a hexagonal hole, etc., and this application does not limit it.

[0122] The number of mounting holes 2121 can be one or more, where "more" means two or more. In embodiments where there are multiple mounting holes 2121, the multiple mounting holes 2121 are arranged at intervals.

[0123] The mounting structure 212 is a mounting hole 2121 provided on the end wall 2112, which helps to simplify the structure of the box 21 and reduce the weight of the box 21.

[0124] In some embodiments, the wall surface of the mounting hole 2121 is a smooth plane or curved surface.

[0125] In other embodiments, the mounting hole 2121 may be provided with an internal thread, which is provided on the hole wall surface of the mounting hole 2121, so that the mounting hole 2121 is a threaded hole.

[0126] The mounting hole 2121 is provided with an internal thread, so the equipment can be threaded into the mounting hole 2121 to connect the box body 211 to the equipment. The connection method is simple and convenient and has good stability.

[0127] like Figure 8 As shown, in some embodiments, the mounting hole 2121 is a blind hole.

[0128] A blind hole is a through hole that connects the surface layer and the inner layer but does not penetrate the entire board. That is, the mounting hole 2121 does not penetrate the end wall 2112, or in other words, along the thickness direction X of the end wall, the mounting hole 2121 does not extend to the side of the end wall 2112 facing the battery cell 10.

[0129] Therefore, the mounting hole 2121 is a blind hole, which means that the mounting hole 2121 will not penetrate the end wall 2112, reducing the impact of the mounting hole 2121 on the structural strength of the end wall 2112. It also eliminates the need for sealing treatment at the mounting hole 2121, reducing the manufacturing difficulty of the box 21.

[0130] like Figure 9 , Figure 10 As shown, in some other embodiments, the mounting hole 2121 may also be a through hole that penetrates the end wall 2112.

[0131] like Figures 11-13 As shown, in some other embodiments, the housing 21 also includes a mounting member 213 mounted on the end wall 2112, with the mounting structure 212 placed on the mounting member 213.

[0132] The mounting component 213 and the end wall 2112 can be fixedly connected, such as by bonding or welding. Alternatively, the mounting component 213 and the end wall 2112 can be detachably connected, such as by bolts or screws. The equipment and the enclosure body 211 are connected via the mounting component 213. The mounting structure 212 is indirectly mounted on the end wall 2112 via the mounting component 213. The mounting component 213 can be a structural component such as a mounting beam, corner piece, or reinforcing plate; it can also be a standard industrial part such as a sleeve, nut, or slide rail. Mounting structures such as through holes, threaded holes, and slots can be machined onto the mounting component 213. The mounting component 213 can also be a connection structure inherent to a standard industrial part; for example, if the mounting component 213 is a nut, the mounting structure 212 is the threaded hole on the nut.

[0133] The container body 211 may include one mounting member 213 or multiple mounting members 213. In an embodiment where the container body 211 includes multiple mounting members 213, the multiple mounting members 213 are arranged at intervals on the end wall 2112.

[0134] One mounting structure 212 can be set on a mounting component 213, or multiple mounting structures 212 can be set on it.

[0135] In some embodiments, the mount 213 is welded to the end wall 2112.

[0136] The mounting component 213 and the end wall 2112 can be welded together by means of laser welding, ultrasonic welding, resistance welding, gas welding, etc.

[0137] The mounting component 213 is welded to the end wall 2112, which not only facilitates the connection but also ensures a good connection strength between the mounting component 213 and the end wall 2112, resulting in a greater load-bearing capacity.

[0138] like Figure 13 As shown, in some embodiments, a first weld 2124 is formed between the mount 213 and the end wall 2112, and the first weld 2124 is located on the outer side 21121 of the end wall.

[0139] The outer surface 21121 of the end wall where the first weld 2124 is formed refers to the surface of the end wall 2112 that overlaps with the mount 213 along the thickness direction X of the end wall, and is furthest from the battery cell 10. The first weld 2124 is the weld mark formed by welding the mount 213 and the end wall 2112.

[0140] The first weld 2124 can take various forms. For example, the first weld 2124 may include multiple first weld marks, which are spaced apart around the outer periphery of the mount 213. This allows welding to the end wall 2112 at multiple locations along the circumference of the mount 213, improving the stability of the connection. Alternatively, the first weld 2124 may be a closed-loop structure extending circumferentially along the mount 213 and closed along its circumference. This allows welding to the end wall 2112 at any location along the circumference of the mount 213, not only connecting the end wall 2112 and the mount 213 but also providing a seal, reducing the risk of external substances entering the gap between the end wall 2112 and the mount 213.

[0141] The first weld 2124 is located on the outer side 21121 of the end wall, which allows the end wall 2112 and the hanger 213 to be welded on the outside of the end wall 2112, making the welding between the end wall 2112 and the hanger 213 more convenient.

[0142] In some embodiments, the mount 213 can be directly connected to the outer side 21121 of the end wall.

[0143] In some other embodiments, a first mounting hole 2123 may also be provided on the end wall 2112, along the thickness direction X of the end wall, the first mounting hole 2123 extends from the outer side surface 21121 of the end wall toward the battery cell 10. Figure 13 The first mounting hole 2123 is recessed from the outer side 21121 of the end wall into the interior of the box body 211. At least a portion of the hanger 213 is inserted into the first mounting hole 2123, so that along the thickness direction X of the end wall, the hanger 213 and the end wall 2112 share at least a portion of the space, which can reduce the size of the overall structure formed by the box body 211 and the hanger 213 in the thickness direction X of the end wall.

[0144] The first mounting hole 2123 can be a round hole, a square hole, a hexagonal hole, etc., and this application does not limit it in this way. The first mounting hole 2123 can be a blind hole that does not penetrate both sides of the end wall 2112 along its thickness direction. The first mounting hole 2123 can also be a through hole that penetrates both sides of the end wall 2112 along the thickness direction X of the end wall. In the embodiment where the first mounting hole 2123 is a through hole that penetrates both sides of the end wall 2112 along the thickness direction X of the end wall, the first mounting hole 2123 can also be a stepped hole. Figure 13 , Figure 14 and Figure 15 The image shows the case where the first mounting hole 2123 is a stepped hole. For example... Figure 15 As shown, the first mounting hole 2123 includes a first hole segment 21231 and a second hole segment 21232 that connect along the thickness direction X of the end wall. Along the thickness direction X of the end wall, the projection of the first hole segment 21231 lies within the second hole segment 21232. When both the first hole segment 21231 and the second hole segment 21232 are circular holes, the diameter of the second hole segment 21232 is larger than the diameter of the first hole segment 21231. The second hole segment 21232 is closer to the interior of the casing 211 than the first hole segment 21231, or in other words, the second hole segment 21232 is closer to the battery cell 10 inside the casing 21 than the first hole segment 21231. Figures 13-15 (Not shown in the image). The mount 213 can be a stepped structure that matches the stepped hole. For example... Figure 13 As shown, the mounting component 213 includes a first connecting segment 21221 and a second connecting segment 21222 connected along the thickness direction X of the end wall. The outer contour of the projection of the second connecting segment 21222 in a plane perpendicular to the thickness direction X of the end wall surrounds the outer periphery of the outer contour of the projection of the first connecting segment 21221 in the same plane. In embodiments where both the first connecting segment 21221 and the second connecting segment 21222 are cylindrical, the outer diameter of the second connecting segment 21222 is larger than the outer diameter of the first connecting segment 21221. At least a portion of the first connecting segment 21221 is inserted into the first hole segment 21231, and at least a portion of the second connecting segment 21222 is inserted into the second hole segment 21232. The end face of the second connecting segment 21222 connecting the first connecting end abuts against the surface at the connection position of the first hole segment 21231 and the second hole segment 21232.

[0145] like Figure 13 , Figure 15 , Figure 16As shown, in some embodiments, the hole wall of the first mounting hole 2123 includes a first conical surface 21233 and a first cylindrical surface 21234 connected along the thickness direction X of the end wall. The large end of the first conical surface 21233 is connected to the outer surface 21121 of the end wall, and the small end of the first conical surface 21233 is connected to one end of the first cylindrical surface 21234. The first conical surface 21233 and a portion of the outer peripheral surface of the hanger 213 are opposite each other, and a first welding space is formed between the first conical surface 21233 and the outer peripheral surface of the hanger 213. Along the thickness direction X of the end wall, at least a portion of the first weld 2124 is located within the first welding space, which can reduce the size of the first weld 2124 protruding from the outer surface 21121 of the end wall along the thickness direction X or prevent the first weld 2124 from protruding from the outer surface 21121 of the end wall along the thickness direction X. Figure 13 , Figure 15 , Figure 16 As shown, the portion of the outer peripheral surface of the mount 213 opposite to the first conical surface 21233 can also be the first welding conical surface 21223. The larger end of the first welding conical surface 21223 is positioned away from the battery cell 10, thus forming a V-shaped first welding space between the first conical surface 21233 and the outer peripheral surface (first welding conical surface 21223) of the mount 213. The first conical surface 21233 is a part of the hole wall of the first hole segment 21231, and the first welding conical surface 21223 is at least a part of the outer peripheral surface of the first connecting segment 21221 of the mount 213. The first conical surface 21233 can be a conical surface or a pyramidal surface, and the first welding conical surface 21223 can be a conical surface or a pyramidal surface.

[0146] In some embodiments, a second weld 2125 is formed between the mount 213 and the end wall 2112, and the second weld 2125 is located on the inner side surface 21122 of the end wall.

[0147] The inner surface 21122 of the end wall with the second weld 2125 refers to the surface of the end wall 2112 that is closest to the battery cell 10 in the area where it overlaps with the mount 213 along the thickness direction X of the end wall.

[0148] The second weld 2125 is the weld mark formed by welding the hanger 213 and the end wall 2112.

[0149] The second weld 2125 can take various forms. For example, the second weld 2125 may include multiple second weld marks, which are spaced apart around the outer periphery of the mount 213. This allows welding to the end wall 2112 at multiple locations along the circumference of the mount 213, improving the stability of the connection. Alternatively, the second weld 2125 may be a closed-loop structure extending circumferentially along the mount 213 and closed along its circumference. This allows welding to the end wall 2112 at any location along the circumference of the mount 213, not only connecting the end wall 2112 and the mount 213 but also providing a seal, reducing the risk of external substances entering the gap between the end wall 2112 and the mount 213 and leakage from the housing 21.

[0150] Please continue to refer to Figures 13-15 In an embodiment where the first mounting hole 2123 is a through hole extending through both sides of the end wall 2112 along the thickness direction X of the end wall, the hole wall surface of the first mounting hole 2123 includes a second conical surface 21235. The large end of the second conical surface 21235 is connected to the inner surface 21122 of the end wall, and the small end of the second conical surface 21235 is located near one end of the first cylindrical surface 21234. The second conical surface 21235 and a portion of the outer peripheral surface of the hanger 213 are opposite each other, and a second welding space is formed between the second conical surface 21235 and the outer peripheral surface of the hanger 213. Along the thickness direction X of the end wall, at least a portion of the second weld 2125 is located within the second welding space, which can reduce the size of the second weld 2125 protruding from the inner surface 21122 of the end wall along the thickness direction X or prevent the second weld 2125 from protruding from the inner surface 21122 of the end wall along the thickness direction X.

[0151] like Figure 13 , Figure 15 , Figure 16 As shown, the portion of the outer peripheral surface of the mount 213 opposite to the second conical surface 21235 can also be the second welding conical surface 21224. The larger end of the second welding conical surface 21224 is positioned close to the battery cell 10, thus forming a V-shaped second welding space between the second conical surface 21235 and the outer peripheral surface (second welding conical surface 21224) of the mount 213. Figure 13 , Figure 15 , Figure 16 As shown, the second conical surface 21235 is a part of the hole wall surface of the second hole section 21232, and the second welding conical surface 21224 is at least a part of the outer peripheral surface of the second connecting section 21222 of the hanger 213. The second conical surface 21235 can be a conical surface or a pyramidal surface, and the second welding conical surface 21224 can be a conical surface or a pyramidal surface.

[0152] The mounting component 213 and the end wall 2112 are welded together to form a second weld 2125 on the inner side of the end wall 2112 and on the outer side of the end wall 2112. Thus, there are two welding positions between the end wall 2112 and the mounting component 213, which further improves the connection strength between the end wall 2112 and the mounting component 213.

[0153] In embodiments where both the first weld 2124 and the second weld 2125 are closed-loop structures circumferentially closed along the mount 213, two layers of welded seals are formed between the end wall 2112 and the mount 213, improving the sealing performance between the end wall 2112 and the mount 213.

[0154] In some embodiments, at least a portion of the mount 213 is embedded in the end wall 2112.

[0155] When the mounting member 213 is embedded in the end wall 2112, at least a portion of the mounting member 213 is located inside the end wall 2112, and when viewed along the thickness direction X perpendicular to the end wall, at least a portion of the end wall 2112 and the mounting member 213 overlap. Specifically, a first mounting hole 2123 can be formed in the end wall 2112, and the mounting member 213 is inserted into the first mounting hole 2123, thereby achieving that the mounting member 213 is at least partially embedded in the end wall 2112. Depending on the depth of the first mounting hole 2123 and the thickness of the end wall 2112, the depth to which the mounting member 213 is embedded in the end wall 2112 along the thickness direction X of the end wall can be different.

[0156] Along the thickness direction X of the end wall, the mounting member 213 may be partially embedded, with the other part extending beyond the outer surface 21121 of the end wall. Alternatively, along the thickness direction X of the end wall, the mounting member 213 may be partially embedded, with the other part extending beyond the inner surface 21122 of the end wall. Or, along the thickness direction X of the end wall, the mounting member 213 may be partially embedded, with one part extending beyond the outer surface 21121 of the end wall and the other part extending beyond the inner surface 21122 of the end wall. Of course, the mounting member 213 may also be completely embedded within the end wall 2112.

[0157] At least a portion of the mounting component 213 is embedded in the end wall 2112, such that the mounting component 213 and the end wall 2112 share space in the thickness direction X of the end wall, thereby reducing or avoiding the mounting component 213 occupying the external space of the box body 211, thus reducing the overall structural size of the box body 21. Furthermore, the fact that at least a portion of the mounting component 213 is embedded in the end wall 2112 increases the contact area between the mounting component 213 and the end wall 2112, improving the stability of the connection between the end wall 2112 and the mounting component 213.

[0158] In some embodiments, one end of the mount 213 is flush with the outer surface 21123 of the end wall; and / or, one end of the mount 213 protrudes from the outer surface 21123 of the end wall.

[0159] The outer surface 21123 of the end wall refers to the surface of the end wall 2112 furthest from the interior of the housing body 211 along the thickness direction X of the end wall. In some embodiments, the outer surface 21121 and the outer surface 21123 of the end wall may be the same surface. In other embodiments, the outer surface 21121 and the outer surface 21123 of the end wall may be different surfaces.

[0160] The end of the mounting component 213 that is away from the interior of the box body 211 can be flush with or protrude from the outer surface 21123 of the end wall.

[0161] In embodiments where the mounting structure 212 includes multiple mounting components 213, the ends of all mounting components 213 facing the outer side of the box body 211 along the thickness direction X of the end wall can be coplanar, which is beneficial for all mounting components 213 to cooperate with the equipment.

[0162] If one end of the mounting component 213 is flush with the outer surface 21123 of the end wall, it prevents the mounting component 213 from extending beyond the outer surface 21123 of the end wall and occupying the space outside the end wall 2112, thereby further reducing the volume of the enclosure 21. If one end of the mounting component 213 protrudes from the outer surface 21123 of the end wall, it facilitates the mounting component 213 to cooperate with the equipment to connect the enclosure body 211 and the equipment.

[0163] like Figure 17 As shown, in some embodiments, the box body 21 further includes a partition beam 2126, which is located inside the box body 211 and disposed on the end wall 2112. When viewed along the thickness direction X of the end wall, the mounting structure 212 overlaps with the partition beam 2126.

[0164] The partition beam 2126 is disposed inside the housing body 211. The partition beam 2126 can divide the internal space of the housing body 211 into multiple sub-spaces, each of which can be used to accommodate at least one battery module.

[0165] The partition beam 2126 can be fixed to the end wall 2112, for example, the partition beam 2126 can be welded to the inner surface of the end wall 2112. Alternatively, the partition beam 2126 can be detachably connected to the end wall 2112, for example, the partition beam 2126 can be connected to the end wall 2112 by bolts, screws, etc. The mounting component 213 can be connected to the partition beam 2126, or it can be not connected to the partition beam 2126.

[0166] When viewed along the thickness direction X of the end wall, the mounting structure 212 overlaps with the partition beam 2126. This can be understood as the projection of the mounting structure 212 in the plane perpendicular to the thickness direction X of the end wall and the projection of the partition beam 2126 in the plane perpendicular to the thickness direction X of the end wall at least partially overlap.

[0167] A partition beam 2126 is provided inside the box body 211 and is placed on the end wall 2112. When viewed in the thickness direction X of the end wall, the mounting structure 212 overlaps with the partition beam 2126. The partition beam 2126 can enhance the structural strength of the area corresponding to the mounting structure 212 on the end wall 2112 and reduce the risk of damage due to overload of the end wall 2112.

[0168] like Figure 18 , Figure 19 As shown, in some embodiments, the mounting structure 212 includes a mounting member 213 mounted on the end wall 2112, with a portion of the mounting member 213 embedded in the end wall 2112 and another portion connected to the partition beam 2126.

[0169] The first mounting hole 2123 on the end wall 2112 is a through hole penetrating both sides of the end wall in the thickness direction X. The hanger 213 passes through the first mounting hole 2123 so that the hanger 213 passes through the end wall 2112 and connects to the partition beam 2126. The hanger 213 and the partition beam 2126 can be fixedly connected, such as by bonding or welding. The hanger 213 and the partition beam 2126 can also be detachably connected, such as by bolts or screws.

[0170] A portion of the mounting component 213 is embedded in the end wall 2112, and the other portion is connected to the partition beam 2126. Thus, the end wall 2112 and the mounting component 213 share space, reducing or avoiding the mounting component 213 occupying the external space of the box body 211, thereby reducing the overall structural size of the box body 21. Furthermore, since the mounting component 213 is connected to the end wall 2112 and the partition beam 2126, when the mounting component 213 connects the box body 211 to the equipment, the end wall 2112 and the partition beam 2126 can jointly bear the weight of the box body 211 and its internal structure, reducing the risk of fatigue damage to the end wall 2112.

[0171] In some embodiments, the mount 213 is welded to the partition beam 2126.

[0172] The welding method of the mounting component 213 and the partition beam 2126 can refer to the welding method of the mounting component 213 and the end wall 2112. For example, the mounting component 213 and the partition beam 2126 can be welded together by laser welding, ultrasonic welding, resistance welding, gas welding and other methods.

[0173] The welding of the mounting component 213 to the partition beam 2126 not only facilitates the connection, but also ensures a good connection strength between the mounting component 213 and the partition beam 2126, resulting in a greater load-bearing capacity.

[0174] like Figure 20 As shown, in some embodiments, a third weld 2134 is formed between the mount 213 and the partition beam 2126, and the third weld 2134 is located on the side of the partition beam 2126 away from the end wall 2112.

[0175] The third weld 2134 is the weld mark formed by welding the hanger 213 and the partition beam 2126.

[0176] The third weld 2134 can take various forms. For example, it can include multiple third weld marks arranged at intervals around the outer periphery of the hanger 213. This allows for welding to the partition beam 2126 at multiple locations along the circumference of the hanger 213, improving connection stability. Alternatively, the third weld 2134 can be a closed-loop structure extending circumferentially and closing along the circumference of the hanger 213. This allows for welding to the partition beam 2126 at any location along the circumference of the hanger 213, not only connecting the partition beam 2126 and the hanger 213 but also providing a seal, reducing the risk of impurities entering the gap between the partition beam 2126 and the hanger 213.

[0177] like Figure 21 , Figure 22As shown, the partition beam 2126 is provided with a second mounting hole 21261, and a portion of the partition beam 2126 is inserted into the second mounting hole 21261. The second mounting hole 21261 can also be a through hole penetrating both sides of the partition beam 2126 along the thickness direction X of the end wall. The hanger 213 is inserted into the second mounting hole 21261. The hole wall surface of the second mounting hole 21261 includes a third conical surface 21262 and a third cylindrical surface 21263. The large end of the third conical surface 21262 is connected to the surface of the partition beam 2126 away from the end wall 2112 along the thickness direction X of the end wall, and the small end of the third conical surface 21262 is connected to one end of the third cylindrical surface 21263. The third conical surface 21262 and a portion of the outer peripheral surface of the mount 213 face each other, forming a third welding space between them. At least a portion of the third weld 2134 is located within this third welding space along the thickness direction X of the end wall. This reduces the size of the third weld 2134 protruding from the surface of the separator beam 2126 away from the end wall 2112 along the thickness direction X of the end wall, or prevents the third weld 2134 from protruding from the surface of the separator beam 2126 along the thickness direction X of the end wall. The portion of the outer peripheral surface of the mount 213 that faces the third conical surface 21262 can also be a third welding conical surface. The larger end of the third welding conical surface is positioned close to the battery cell 10, forming a V-shaped third welding space between the third conical surface 21262 and the third welding conical surface. The third conical surface 21262 can be a conical surface or a pyramidal surface, and the third welding conical surface can also be a conical surface or a pyramidal surface.

[0178] The third weld 2134 formed by welding the mounting component 213 and the partition beam 2126 is located on the side of the partition beam 2126 away from the end wall 2112. Therefore, the welding of the mounting component 213 and the partition beam 2126 can be carried out on the side of the partition beam 2126 away from the end wall 2112, making the welding of the mounting component 213 and the partition beam 2126 more convenient.

[0179] The second mounting hole 21261 can be a blind hole along the thickness direction X of the end wall that does not penetrate the partition beam 2126 on the side away from the end wall 2112.

[0180] In an embodiment where a second weld 2125 is formed between the end wall 2112 and the mounting member 213, the second mounting hole 21261 can also be a stepped hole. The second mounting hole 21261 includes a third hole segment 21264 and a fourth hole segment 21265. Along the thickness direction X of the end wall, the projection of the fourth hole segment 21265 is located within the third hole segment 21264. When both the fourth hole segment 21265 and the third hole segment 21264 are circular holes, the diameter of the third hole segment 21264 is larger than the diameter of the fourth hole segment 21265. The third hole segment 21264 is closer to the end wall 2112 than the fourth hole segment 21265. After the partition beam 2126 is installed inside the box body 211, the second weld 2125 is accommodated within the third hole segment 21264, avoiding interference between the partition beam 2126 and the second weld 2125.

[0181] The structure of the mounting element 213 can be varied. For example, the mounting element 213 can be a hook, a buckle, etc. In some embodiments, the mounting element 213 is a sleeve with internal threads.

[0182] The wall and end wall 2112 of the mounting component 213 are welded together. The mounting component 213 is a sleeve with an internal thread inside. The mounting component 213 is threaded with the equipment to mount the box 21 onto the electrical equipment. The mounting method is simple, convenient and has good stability.

[0183] In other embodiments, the mounting structure 212 may also be other structures provided on the mounting member 213. For example, the mounting structure 212 may be an external thread provided on the outer surface of the mounting member 213 so that the mounting member 213 is a screw; or the mounting structure 212 may be a hook provided on the mounting member 213.

[0184] In some embodiments, a protective structure 2128 is provided on the outer side of the end wall 2112, the protective structure 2128 being used to buffer and / or insulate the end wall 2112.

[0185] The protective structure 2128 can be a cushioning component, such as a rubber pad or foam. It can also be an insulation board, such as rock wool board or extruded polystyrene board. Alternatively, it can include both a cushioning component and an insulation board. The protective structure 2128 can be installed on the outer side of the end wall 2112 by means of bonding, welding, screws, or bolts. It can also be a coating formed on the outer side of the end wall 2112 by coating, such as nano-insulating coatings, radiant heat-insulating coatings, or barrier heat-insulating coatings. The material of the protective structure 2128 can also be a material that has both heat-insulating and cushioning functions. Finally, the protective structure 2128 can be a composite structure that includes both a cushioning component and an insulation board.

[0186] The protective structure 2128 can improve the impact resistance of the end wall 2112 and / or help maintain a basically constant internal temperature of the enclosure 21.

[0187] The protective structure 2128 can be disposed on the outer surface 21123 of the end wall. For example... Figure 23 As shown, a mounting groove 21125 can also be formed on the outer surface 21123 of the end wall, recessed from the outer surface 21123 of the end wall into the housing 21 along the thickness direction X of the end wall. A protective structure 2128 is disposed within the mounting groove 21125 and connected to the bottom surface of the mounting groove 21125, where the bottom surface of the mounting groove 21125 refers to the surface of the mounting groove 21125 perpendicular to the thickness direction X of the end wall. The depth of the recess in the mounting groove 21125 along the thickness direction X of the end wall can be greater than, less than, or equal to the dimension of the protective structure 2128 along the thickness direction X of the end wall. Figure 23 The diagram shows a case where the recess depth of the mounting groove 21125 is greater than the dimension of the protective structure 2128 along the thickness direction X of the end wall, in order to prevent the protective structure 2128 from extending out of the mounting groove 21125 and affecting the connection between the mounting structure 212 and the equipment.

[0188] In some embodiments, the mounting structure 212 protrudes from the protective structure 2128.

[0189] Along the thickness direction X of the end wall, the mounting structure 212 protrudes from the protective structure 2128 away from the surface of the end wall 2112. In an embodiment where the mounting structure 212 is directly disposed on the end wall 2112, the mounting hole 2121 is disposed on the outer surface 21123 of the end wall, and the protective structure 2128 is disposed in the mounting groove 21125. Along the thickness direction X of the end wall, the size of the protective structure 2128 is smaller than the depth of the mounting groove 21125, so that the outer surface 21123 of the end wall with the mounting hole 2121 protrudes from the protective structure 2128, thereby causing the mounting structure 212 to protrude from the protective structure 2128.

[0190] In the embodiment where the mounting structure 212 is disposed on the mounting member 213, the mounting member 213 can be disposed at any position on the end wall 2112. As long as the end of the mounting member 213 facing away from the battery cell 10 is further away from the interior of the battery cell 10 relative to the surface of the protective structure 2128 facing away from the end wall 2112, the mounting member 213 protrudes from the protective structure 2128, thereby the mounting structure 212 protrudes from the protective structure 2128. Figure 20 (as shown in the image).

[0191] The mounting structure 212 protrudes from the protective structure 2128 to facilitate the cooperation between the mounting structure 212 and the equipment, and to reduce the risk of interference between the connection position of the mounting structure 212 and the equipment and the protective structure 2128.

[0192] The structure of end wall 2112 is not limited to solid plate structure.

[0193] like Figure 23 As shown, in some embodiments, the end wall 2112 has a flow channel 21124 formed inside for accommodating the heat exchange medium. The end wall 2112 can be a plate-like structure with the flow channel 21124 formed inside for accommodating the heat exchange medium. The heat exchange medium can be water, air, a mixture of water and ethylene glycol, a refrigerant, a phase change material, etc., and the heat exchange medium can be circulating. The end plate can also be called a water-cooled plate, liquid-cooled plate, heat exchange plate, temperature regulating plate, etc.

[0194] The flow channel 21124 formed inside the end wall 2112 can accommodate the heat exchange medium, so the end wall 2112 can play the role of regulating the temperature of the internal structure of the box body 211. Therefore, it is not necessary to set up thermal management components inside the box body 211, thereby improving the utilization rate of the internal space of the battery 100 equipped with the box body 21, which is conducive to improving the energy density of the battery 100 equipped with the box body 21.

[0195] In an embodiment where the mounting structure 212 includes a mounting member 213, when viewed along the thickness direction X of the end wall, the mounting member 213 does not overlap with the flow channel 21124.

[0196] It is understandable that the mounting component 213 is designed to avoid the flow channel 21124, so that the heat exchange medium in the flow channel 21124 will not come into contact with the mounting component 213.

[0197] Therefore, the mounting component 213 does not overlap with the flow channel 21124, and the mounting component 213 and the flow channel 21124 will not interfere with each other. This can prevent the heat exchange medium in the flow channel 21124 from reducing the service life of the mounting component 213, and can also prevent the mounting component 213 from affecting the flow of the heat exchange medium in the flow channel 21124 and reducing the heat exchange efficiency.

[0198] Of course, in other embodiments, the mounting member 213 may also pass through the flow channel 21124 along the thickness direction X of the end wall, in which case part of the mounting member 213 is located inside the flow channel 21124, and the mounting member 213 will contact the heat exchange medium inside the flow channel 21124.

[0199] In some embodiments, the end wall 2112 is provided with an inlet 2129 for the heat exchange medium to flow into the flow channel 21124 and an outlet 2130 for the heat exchange medium to flow out of the flow channel 21124.

[0200] The heat exchange medium enters the flow channel 21124 from the inlet 2129 and flows towards the outlet 2130 along the extension direction of the flow channel 21124. Heat exchange occurs during the flow process, and the medium is discharged from the outlet 2130. This process can regulate the internal temperature of the box body 211, either by raising or lowering the internal temperature of the box body 211.

[0201] like Figure 24 As shown, in this embodiment, the housing 21 further includes a first pipe 2131 and a second pipe 2132, both of which are connected to the flow channel 21124. Both the first pipe 2131 and the second pipe 2132 are located within the housing body 211. An inlet 2129 is located in the first pipe 2131, and an outlet 2130 is located in the second pipe 2132. In embodiments where the housing 21 includes a partition beam 2126, both the first pipe 2131 and the second pipe 2132 pass through the partition beam 2126 in a direction away from the end wall 2112. The first pipe 2131 and the second pipe 2132 can exit from the same partition beam 2126 or from different partition beams 2126.

[0202] The end wall 2112 is provided with a heat exchange medium inlet 2129 and an outlet 2130, which allows the heat exchange medium to flow in the flow channel 21124, enabling faster heat exchange and thus improving heat exchange efficiency.

[0203] One or more flow channels 21124 can be provided on the end wall 2112. In an embodiment where one flow channel 21124 is provided on the end wall 2112, only one inlet 2129 and one outlet 2130 may be provided on the end wall 2112. In an embodiment where multiple flow channels 21124 are provided on the end wall 2112, the extension directions of the multiple flow channels 21124 may be the same or different. The multiple flow channels 21124 may be independent of each other or connected in parallel. The parallel connection of multiple flow channels 21124 means that the heat exchange medium entering from one inlet 2129 can be distributed to each flow channel 21124, and the heat exchange medium exiting from each flow channel 21124 can converge to the same outlet 2130 for discharge.

[0204] In an embodiment where multiple flow channels 21124 are provided on the end wall 2112, one flow channel 21124 may be provided with one inlet 2129 and one outlet 2130, or all flow channels 21124 may share one inlet 2129 and one outlet 2130.

[0205] In other embodiments, the end wall 2112 is provided with a plurality of outlets 2130.

[0206] Multiple outlets 2130 are spaced apart on the end wall 2112. The housing body 211 may include multiple second pipes 2132, which are spaced apart, and each outlet 2130 is located on one second pipe 2132. Figure 24 As shown, multiple second pipes 2132 extend from the same partition beam 2126. The multiple second pipes 2132 are arranged at intervals along the extension direction of the partition beam 2126.

[0207] The heat exchange medium within all flow channels 21124 can exit from the multiple outlets 2130. In embodiments where the end wall 2112 has multiple outlets 2130, the end wall 2112 may be provided with one inlet 2129 or multiple inlets 2129. In other embodiments, the number of inlets 2129 and outlets 2130 may correspond one-to-one.

[0208] The end wall 2112 is provided with multiple outlets 2130, which facilitates the rapid discharge of heat exchange medium from the flow channel 21124. When the heat exchange medium is a cooling medium, it can quickly remove the heat inside the box 21, thereby rapidly reducing the temperature inside the box 21.

[0209] like Figure 24 As shown, in some embodiments, the housing 21 includes a plurality of mounting structures 212, which are arranged at intervals.

[0210] The mounting structures 212 in the multiple mounting structures 212 can be the same or different. For example, each mounting structure 212 may only include a mounting hole 2121 provided on the end wall 2112, or each mounting structure 212 may have a mounting hole 2121 provided on a mounting member 213, so that the mounting structures 212 are the same. As another example, some mounting structures 212 in the multiple mounting structures 212 may have a mounting hole 2121 provided on the end wall 2112, and other mounting structures 212 may have a mounting hole 2121 provided on the mounting member 213, so that the multiple mounting structures 212 are different.

[0211] The enclosure 21 includes multiple spaced mounting structures 212. Multiple mounting positions can be formed between the enclosure body 211 and the equipment, which not only makes the connection between the enclosure body 211 and the electrical equipment more stable, but also reduces the load borne by each mounting position.

[0212] like Figure 19 As shown, in some embodiments, the box body 211 further includes a side wall 2113, which surrounds the outer periphery of the end wall 2112. Along the first direction Y, the side wall 2113 includes two opposing first side walls 21131, and the mounting member 213 does not extend beyond the outer surface of the first side wall 21131.

[0213] Sidewall 2113 surrounds the outer side of endwall 2112 and can form a frame structure matching the outer periphery of endwall 2112. Along the thickness direction X of endwall 2113, one end of sidewall 2113 is connected to endwall 2112, and the other end forms the opening 2111 of box body 211. Sidewall 2113 can be an integrally formed structure surrounding the outer periphery of endwall 2112, or it can be formed by multiple plate-like structures sequentially connected along the edge of endwall 2112 to form a frame structure. One end of sidewall 2113 can be directly connected to the outer edge of endwall 2112, or indirectly connected, for example, sidewall 2113 and endwall 2112 can be indirectly connected by an adhesive. Of course, sidewall 2113 and endwall 2112 can also be integrally formed.

[0214] The different structural shapes of the end wall 2112 and the side wall 2113 result in different structural shapes of the box body 211. For example, if the end wall 2112 is a rectangular plate and the side wall 2113 is a rectangular frame structure, then the box body 211 is a rectangular structure. If the end wall 2112 is a rectangular plate and the side wall 2113 only includes two first walls arranged opposite each other along the first direction Y, and the two first walls are respectively connected to the two ends of the end wall 2112 along the first direction Y, then the box body 211 is a U-shaped structure.

[0215] The first direction Y can be any direction of the thickness direction X of the vertical end wall. The outer surface of the first side wall 21131 refers to the surfaces of the two first side walls 21131 that are opposite to each other along the first direction Y. In the embodiments of this application, the lateral direction of the box body 211 refers to any direction of the thickness direction X of the vertical end wall, and the first direction Y is one of the lateral directions of the box body 211. When the battery 100 with the box body 21 is installed on the vehicle 1000, the first direction Y can be parallel to the width direction of the vehicle 1000.

[0216] If the mounting component 213 does not extend beyond the outer side of the first side wall 21131, then along the first direction Y, the mounting component 213 will not extend to the side of the box body 211, and the mounting component 213 will not occupy the space outside the first side wall 211 of the box body 211. Therefore, by increasing the size of the internal space of the box body 211 along the first direction Y, the space originally occupied by the mounting component 213 along the first direction Y of the box body 211 can be used to accommodate the battery cell 10, thereby improving the energy density and packing efficiency of the battery 100 equipped with the box body 21.

[0217] In some embodiments, the housing 21 includes a first flange portion 2114, which is disposed at one end of the first sidewall 21131 away from the end wall 2112, and at least a portion of the first flange portion 2114 protrudes from the inner surface of the sidewall 2113.

[0218] Along the thickness direction X of the end wall, the first flange portion 2114 is connected to the end of the side wall 2113 opposite to the end wall 2112. Along the thickness direction X of the end wall, the surface of the first flange portion 2114 opposite to the end wall 2112 forms a connecting surface and a sealing surface that mates with the cover body 22.

[0219] The inner surface of side wall 2113 refers to the surface of side wall 2113 facing the interior of the box body 211. The inner surface of the first side wall 21131 refers to the surface of the first side wall 21131 facing another first side wall 21131, and the inner surface of the first side wall 21131 is at least a part of the inner surface of side wall 2113.

[0220] Along the first direction Y, the first flange portion 2114 can protrude entirely from the inner surface of the side wall 2113, that is, the first flange portion 2114 protrudes from the inner surface of the side wall 2113 along the first direction Y into the interior of the housing body 211. For example... Figure 21 As shown, the first flange portion 2114 protrudes entirely from the inner surface of the side wall 2113. Specifically, both first side walls 21131 are provided with first flange portions 2114, and the first flange portions 2114 protrude entirely from the inner surface of the corresponding first side wall 21131.

[0221] In other embodiments, the first flange portion 2114 may protrude only a portion of the inner surface of the sidewall 2113, while another portion of the first flange portion 2114 protrudes from the outer surface of the sidewall 2113.

[0222] In contrast to the case where the first flange portion 2114 protrudes entirely from the outer side of the side wall 2113, at least a portion of the first flange portion 2114 protrudes from the inner side of the side wall 2113. In this case, the housing body 211 and the first flange portion 2114 share a portion of space, which can reduce the lateral external space occupied by the first flange portion 2114 in the housing body 211. By increasing the lateral dimension of the internal space of the housing body 211, the space originally occupied by the mounting component 213 in the lateral direction of the housing body 211 can be used to accommodate the battery cell 10, thereby improving the energy density and packing efficiency of the battery 100 equipped with the housing 21.

[0223] like Figure 25As shown, in some embodiments, the sidewall 2113 further includes a second sidewall 21132 and a third sidewall 21133 arranged opposite to each other along the second direction Z. The housing 21 includes a second flange portion 2115 and a third flange portion 2116. The second flange portion 2115 is disposed at one end of the second sidewall 21132 away from the end wall 2112 and at least partially protrudes from the inner surface of the second sidewall 21132. The third flange portion 2116 is disposed at one end of the third sidewall 21133 away from the end wall 2112 and at least partially protrudes from the outer surface of the second sidewall 21132. The first direction Y, the second direction Z and the thickness direction X of the end wall are perpendicular to each other.

[0224] The second direction Z is one of the lateral directions of the box body 211.

[0225] Along the thickness direction X of the end wall, the second flange portion 2115 is connected to the end of the second side wall 21132 that is away from the end wall 2112. Along the thickness direction X of the end wall, the surface of the second flange portion 2115 that is away from the end wall 2112 forms a connecting surface and a sealing surface that mates with the cover body 22.

[0226] The inner surface of the second side wall 21132 refers to the surface of the second side wall 21132 facing the interior of the housing body 211. The inner surface of the second side wall 2113 is a portion of the inner surface of the side wall 2113. Along the second direction Z, the second flange portion 2115 can protrude entirely from the inner surface of the second side wall 21132, that is, the second flange portion 2115 protrudes from the inner surface of the second side wall 21132 along the second direction Z into the interior of the housing body 211. Figure 25 As shown, the second flange portion 2115 protrudes entirely from the inner surface of the second sidewall 21132.

[0227] In other embodiments, the second flange portion 2115 may protrude only partially from the inner surface of the second sidewall 21132, while another portion of the second flange portion 2115 protrudes from the outer surface of the second sidewall 21132.

[0228] The outer surface of the third side wall 21133 refers to the surface of the third side wall 21133 that faces away from the interior of the box body 211. Along the second direction Z, the third flange portion 2116 can protrude entirely from the outer surface of the third side wall 21133, that is, the third flange portion 2116 protrudes from the outer surface of the third side wall 21133 along the second direction Z towards the exterior of the box body 211. For example... Figure 25 As shown, the third flange 2116 protrudes entirely from the outer surface of the third sidewall 21133.

[0229] In other embodiments, the third flange portion 2116 may protrude only partially from the outer side of the third sidewall 21133, while another portion of the third flange portion 2116 protrudes from the inner side of the third sidewall 21133.

[0230] Since the battery 100 with the housing 21 has other structures on the outer side along the second direction Z, such as the total positive and negative terminals of the battery 100, water cooling inlet, water cooling outlet 2130, circuit board interface, etc., which will occupy the space on the outer side of the housing body 211 along the second direction Z, the third flange 2116 protrudes outward along the second direction Z of the housing body 211, and can share a certain space with other structures on the outer side of the housing body 211 in the second direction Z. It will not have much impact on the overall lateral dimension of the housing 21, and will also make the opening 2111 of the housing body 211 larger, which is convenient for the battery cell 10 to enter the housing.

[0231] like Figure 26 As shown, in some embodiments, the box body 211 further includes a side wall 2113, which surrounds the outer periphery of the end wall 2112. The side wall 2113 is provided with a lifting structure 2133, which is used to cooperate with a lifting device to move the box body 21.

[0232] The hoisting structure 2133 can be set in any part of the side wall 2113. In this embodiment, the hoisting structure 2133 is set in the first side wall 21131, one of the two first side walls 21131 is provided with the hoisting structure 2133, or both first side walls 21131 are provided with the hoisting structure 2133.

[0233] The lifting structure 2133 is a structure installed on the side wall 2113 of the container body 211, which can be used in conjunction with a lifting device. After the lifting device is engaged with the lifting structure 2133, the lifting device can move the container body 21. Therefore, the installation of the lifting structure 2133 facilitates the assembly and transfer of the container body 21.

[0234] The lifting structure 2133 can have various structures. For example, the lifting structure 2133 can be a hook, and the hook-type lifting structure 2133 cooperates with the hook-type lifting device, which can move the box body 21. In some embodiments, the lifting structure 2133 includes a first lifting hole 21331, which is used to cooperate with the lifting device to lock the lifting device to the box body 211.

[0235] The first lifting hole 21331 can be a round hole, a square hole, a rectangular hole, a strip hole, etc., and this application does not limit it. The first lifting hole 21331 can be a blind hole or a through hole that penetrates the side wall 2113.

[0236] The lifting structure 2133 includes a first lifting hole 21331. The first lifting hole 21331, in conjunction with a lifting device, locks the lifting device and the housing body 211, facilitating the movement of the housing body 21 in cooperation with the lifting device. Compared to the case where a lifting component protruding from the outer surface of the side wall 2113 is installed on the side wall 2113, providing the first lifting hole 21331 on the side wall 2113 avoids occupying the external space of the housing body 21 in its lateral direction. This allows for an increase in the lateral dimension of the internal space of the housing body 211, freeing up the space originally occupied by the mounting component 213 in the lateral direction to accommodate the battery cells 10. This, in turn, helps to improve the energy density and packing efficiency of the battery 100 equipped with the housing 21.

[0237] In some embodiments, the lifting structure 2133 includes a second lifting hole 21332, which is used for positioning and engaging with a lifting device.

[0238] The structure of the second lifting hole 21332 can be the same as or different from that of the first lifting hole 21331. The second lifting hole 21332 is used to cooperate with the positioning structure on the lifting device. Depending on the shape of the second lifting hole 21332, the positioning structure of the lifting device will be different. For example, the second lifting structure 2133 can be a round hole, a square hole, a rectangular hole, or a strip hole, and the positioning structure of the lifting device can be a positioning pin.

[0239] The second lifting hole 21332 is designed to keep the lifting device and the box body 21 in a relatively accurate position before the lifting device engages with the first lifting hole 21331, so that the lifting device can engage with the first lifting hole 21331 accurately and lock the lifting device and the box body 211.

[0240] In some embodiments, the hoisting structure 2133 includes two second hoisting holes 21332, which are located on both sides of the first hoisting hole 21331.

[0241] In this embodiment, the two second lifting holes 21332 are located on both sides of the first lifting hole 21331 along the second direction Z, and the thickness direction X of the end wall, the first direction Y, and the second direction Z are perpendicular to each other. When the battery 100 with the housing 21 is installed on the vehicle 1000, the second direction Z is parallel to the driving direction of the vehicle 1000.

[0242] Second lifting holes 21332 are provided on both sides of the first lifting hole 21331, which can further accurately position the lifting device and the first lifting hole 21331 so that the lifting device can be accurately locked to the box body 211 at the first lifting hole 21331.

[0243] Of course, in other embodiments, the lifting structure 2133 may also include one second lifting hole 21332, three or more second lifting holes 21332.

[0244] In some embodiments, the first lifting hole 21331 is a threaded hole; and / or, the second lifting hole 21332 is an oblong hole. If the first lifting hole 21331 is a threaded hole, the lifting device and the first lifting hole 21331 can be threaded together to lock the box body 211 and the lifting device. The locking method is simple and convenient, and can improve the efficiency of lifting operations. If the second lifting hole 21332 is an oblong hole, after the lifting device is positioned and engaged with the second lifting hole 21332, the risk of the lifting device rotating within the second lifting hole 21332 is small, which can improve the stability of positioning.

[0245] Of course, in other embodiments, the first lifting hole 21331 and the second lifting hole 21332 may also be in other structural forms.

[0246] In some embodiments, the sidewall 2113 is provided with a plurality of lifting structures 2133, which are arranged at intervals.

[0247] In this embodiment, multiple hoisting structures 2133 can be provided on each first sidewall 21131, and the multiple hoisting structures 2133 are arranged at intervals along the second direction Z.

[0248] The side wall 2113 is provided with multiple spaced hoisting structures 2133. The lifting equipment can cooperate with multiple hoisting structures 2133, or multiple lifting equipment can cooperate with multiple hoisting structures 2133, to move the box body 21, which can improve the stability of the hoisting operation.

[0249] This application embodiment also provides a box assembly 20, which includes a cover 22 and a box 21 provided in any of the above embodiments. The cover 22 is used to seal the opening 2111.

[0250] If the mounting member 213 of the housing 21 provided in any of the above embodiments occupies little or no external space in the lateral direction of the housing body 211, then the housing assembly 20 having the housing 21 can increase the lateral dimension of the internal space of the housing body 211, and use the space originally occupied by the mounting member 213 in the lateral direction of the housing body 211 to accommodate the battery cell 10, thereby improving the energy density and packing efficiency of the battery 100 having the housing assembly 20.

[0251] like Figure 27 As shown, in some embodiments, the box body 211 may not have side walls 2113, and the box body 211 may only include end walls 2112. Along the thickness direction X of the end wall, a battery cell 10 may be disposed on one side of the end wall 2112. Figure 27 (Not shown in the diagram), the end wall 2112 can support the weight of the battery cell 10. The opening 2111 of the housing body 211 can be any side that allows the battery cell 10 to be placed on the end wall 2112, such as along the thickness direction X of the end wall, which is the space on the opposite side of the end wall 2112.

[0252] In an embodiment where the housing 21 includes a partition beam 2126, the partition beam 2126 is disposed on the side of the end wall 2112 where the battery cell 10 is disposed, and the mounting structure 212 can penetrate the partition beam 2126 along the thickness direction X of the end wall.

[0253] In an embodiment where the housing 21 includes a hoisting structure 2133, the hoisting structure 2133 can be provided on both opposite sides of the end wall 2112 along the first direction Y, and multiple hoisting structures 2133 can be provided on either side of the end wall 2112 along the first direction Y, spaced apart along the second direction.

[0254] Please continue to refer to Figure 27 Along the first direction Y, two blocking portions 2135 may also be provided on both sides of the end wall 2112. The blocking portions 2135 extend along the second direction Z and protrude along the thickness direction X of the end wall 2112 from the surface of the end wall 2112 where the separator beam 2126 is provided. In other words, the blocking portions 2135 protrude along the thickness direction X of the end wall from the surface of the end wall 2112 facing the battery cell 10. The blocking portions 2135 are used to prevent the overflow of adhesive from the surface of the end wall 2112. The adhesive includes, but is not limited to, the adhesive that bonds the battery cell 10 and the end wall 2112, the adhesive that bonds the separator beam 2126 and the end wall 2112, etc.

[0255] This application embodiment also provides a battery 100, which includes a battery cell 10 and a housing assembly 20 provided in the above embodiment, wherein the battery cell 10 is housed within the housing body 211.

[0256] The internal space of the housing assembly 20 provided in the above embodiments can accommodate more battery cells 10, and the battery 100 with the housing assembly 20 can have higher energy density and packing efficiency.

[0257] This application also provides an electrical device, including the battery 100 provided in the above embodiments.

[0258] This application provides a box 21, which includes a box body 211 and a mounting member 213. The box body 211 includes an end wall 2112 and a side wall 2113, with the side wall 2113 surrounding the outer periphery of the end wall 2112. The mounting member 213 is a sleeve disposed on the end wall 2112, and the sleeve has an internal thread. The side wall 2113 includes two first side walls 21131 arranged opposite to each other along a first direction Y, and a second side wall 21132 and a third side wall 21133 arranged opposite to each other along a second direction Z. The mounting member 213 does not extend beyond the outer surface of the first side wall 21131 of the side wall 2113 along the first direction Y. A first flange portion 2114 is connected to the end of the first side wall 21131 facing away from the end wall 2112, and the first flange portion 2114 protrudes entirely from the inner surface of the first side wall 21131. The second sidewall 21132 has a second flange 2115 connected to one end opposite to the end wall 2112, and the second flange 2115 protrudes entirely from the inner surface of the second sidewall 21132. The third sidewall 21133 has a third flange 2116 connected to one end opposite to the end wall 2112, and the third flange 2116 protrudes entirely from the outer surface of the third sidewall 21133. The outer surface 21123 of the end wall is provided with a mounting groove 21125, and a protective structure 2128 is provided in the mounting groove 21125. The protective structure 2128 does not extend out of the groove. The first sidewall 21131 is provided with a lifting structure 2133, which includes a first lifting hole 21331 and two second lifting holes 21332 located on both sides of the first lifting hole 21331. The first lifting hole 21331 is a threaded hole, and the second lifting holes 21332 are oblong holes.

[0259] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A box, characterized in that, include: The box body has openings and end walls arranged opposite to each other; as well as A mounting structure is disposed on the end wall. When viewed along the thickness direction of the end wall, the mounting structure overlaps with the end wall. The mounting structure is used to connect the box body and the equipment. The mounting structure includes mounting holes, which are blind holes; A partition beam is provided on the inner surface of the end wall. Along the thickness direction of the end wall, the mounting hole does not extend to the plane where the partition beam is located away from the surface of the end wall.

2. The housing according to claim 1, characterized in that, The mounting hole is provided with internal threads.

3. The housing according to any one of claims 1-2, characterized in that, The enclosure also includes a mounting component installed on the end wall, and the mounting structure is placed on the mounting component.

4. The housing according to claim 3, characterized in that, The mounting component is welded to the end wall.

5. The housing according to claim 4, characterized in that, A first weld is formed between the mounting component and the end wall, and the first weld is located on the outer side of the end wall.

6. The housing according to claim 5, characterized in that, A second weld is formed between the mounting component and the end wall, and the second weld is located on the inner side of the end wall.

7. The housing according to claim 3, characterized in that, At least a portion of the mounting element is embedded in the end wall.

8. The housing according to claim 7, characterized in that, One end of the mounting member is flush with the outer surface of the end wall; and / or, one end of the mounting member protrudes from the outer surface of the end wall.

9. The housing according to any one of claims 1-2, characterized in that, The box body also includes a partition beam, which is located inside the box body and disposed on the end wall. When viewed along the thickness direction of the end wall, the mounting structure overlaps with the partition beam.

10. The housing according to claim 9, characterized in that, The mounting structure includes a mounting component installed on the end wall, with a portion of the mounting component embedded in the end wall and another portion connected to the partition beam.

11. The housing according to claim 10, characterized in that, The mounting component is welded to the partition beam.

12. The housing according to claim 11, characterized in that, A third weld is formed between the mounting component and the partition beam, and the third weld is located on the side of the partition beam away from the end wall.

13. The housing according to claim 3, characterized in that, The mounting component is a sleeve, and the sleeve has internal threads.

14. The housing according to any one of claims 1-2, characterized in that, The outer side of the end wall is provided with a protective structure, which is used to buffer and / or insulate the end wall.

15. The housing according to claim 14, characterized in that, The mounting structure protrudes from the protective structure.

16. The housing according to any one of claims 1-2, characterized in that, The end wall has a flow channel formed inside for containing the heat exchange medium.

17. The housing according to claim 16, characterized in that, Viewed along the thickness direction of the end wall, the mounting structure does not overlap with the flow channel.

18. The housing according to claim 16, characterized in that, The end wall is provided with an inlet for the heat exchange medium to flow into the flow channel and an outlet for the heat exchange medium to flow out of the flow channel.

19. The housing according to claim 18, characterized in that, The end wall is provided with multiple outlets.

20. The housing according to any one of claims 1-2, characterized in that, The enclosure includes multiple mounting structures, which are arranged at intervals.

21. The housing according to any one of claims 1-2, characterized in that, The box body also includes a side wall, which surrounds the outer periphery of the end wall. Along the first direction, the side wall includes two opposing first side walls, and the mounting member does not extend beyond the outer surface of the first side wall.

22. The housing according to claim 21, characterized in that, The housing includes a first flange portion disposed at one end of the first sidewall away from the end wall, and at least a portion of the first flange portion protrudes from the inner surface of the first sidewall.

23. The housing according to any one of claims 1-2, characterized in that, The container body also includes a side wall, which surrounds the outer periphery of the end wall. The side wall is provided with a lifting structure, which is used to cooperate with a lifting device to move the container.

24. The housing according to claim 23, characterized in that, The hoisting structure includes a first hoisting hole, which is used to cooperate with the hoisting tool to lock the hoisting tool to the box body.

25. The housing according to claim 24, characterized in that, The hoisting structure includes a second hoisting hole, which is used for positioning and engaging with the hoisting device.

26. The housing according to claim 25, characterized in that, The hoisting structure includes two second hoisting holes, which are located on both sides of the first hoisting hole.

27. The housing according to claim 26, characterized in that, The first lifting hole is a threaded hole; and / or, the second lifting hole is a slotted hole.

28. The housing according to claim 27, characterized in that, The side wall is provided with multiple hoisting structures, which are arranged at intervals.

29. A housing assembly, characterized in that, include: The housing as described in any one of claims 1-28; as well as A cover, the cover being used to seal the opening.

30. A battery, characterized in that, include: The housing assembly as described in claim 29; The battery cell is housed within the casing.

31. An electrical appliance, characterized in that, Includes the battery as described in claim 30.

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