Box, battery and electric device

Abstract

Provided in the present application are a box (10), a battery (100) and an electric device. The box (10) comprises a bottom plate (110) and a mounting beam (120), wherein the bottom plate (110) has an outer wall surface (111), and the mounting beam (120) comprises a connecting portion (121), the connecting portion (121) being configured to be connected to the bottom plate (110), and at least a part of the connecting portion (121) fitting against the outer wall surface (111). In the box (10) according to the embodiments of the present application, the mounting beam (120) is connected to the bottom plate (110) by means of the connecting portion (121) to improve the contact area with the bottom plate (110), such that a larger contact area between the bottom plate (110) and the connecting portion (121) can disperse the stress between the bottom plate (110) and the mounting beam (120), so that the risk of breakage between the bottom plate (110) and the connecting portion (121) is lower, and the box (10) is more reliable in use when it is mounted on a main body of the electric device by means of the mounting beam (120).

Description

Box, battery and electrical equipment

[0001] This application refers to Chinese patent application No. 202311163622.1 filed on September 8, 2023, entitled “Box, Battery and Electrical Equipment”, which is incorporated into this application in its entirety by reference. Technical Field

[0002] The present application relates to the technical field of battery structures, and in particular provides a box, a battery, and an electrical device. Background Art

[0003] When mounted, the battery is connected to the main body of the electrical equipment via a beam structure on the battery housing, allowing the battery to be mounted and fixed to the main body of the electrical equipment, such as vehicles, aircraft, and ships. However, during operation, the electrical equipment may vibrate, causing the battery to vibrate relative to the main body to a certain extent. This can cause significant stress between the beam structure and the bottom plate of the housing, increasing the risk of fracture between the beam structure and the bottom plate.

[0004] Application Contents

[0005] The purpose of the embodiments of the present application is to provide a box, a battery and an electrical device, aiming to solve the problem in the related art that when the box is mounted and used, large stress may be generated between the beam structure and the bottom plate, and the beam structure and the bottom plate are prone to fracture.

[0006] To achieve the above objectives, the technical solutions adopted in the embodiments of the present application are:

[0007] In the first aspect, an embodiment of the present application provides a box body, which is used to be set on the main body of the electrical equipment. The box body includes a bottom plate and a mounting beam. The bottom plate has an outer wall surface. The mounting beam is used to connect the main body. The mounting beam includes a connecting portion. The connecting portion is configured to be connected to the bottom plate, and at least part of the connecting portion is in contact with the outer wall surface.

[0008] Beneficial effects of the embodiments of the present application: The box provided in the embodiments of the present application can be connected to the main body of the electrical equipment through a mounting beam, wherein the mounting beam is connected and fits with the base plate through a connecting portion, and the mounting beam can increase the contact area with the base plate by setting a connecting portion, so that the larger contact area between the base plate and the connecting portion can disperse the stress between the base plate and the mounting beam, that is, the risk of fracture between the base plate and the connecting portion is lower, and the box is more reliable when mounted on the main body of the electrical equipment through the mounting beam.

[0009] In some embodiments, the mounting beam further includes a beam body, the beam body is used to be connected to the main body, and the connecting portion is provided on the beam body.

[0010] By adopting the above-mentioned technical solution, when the box body is mounted on the main body using the mounting beam, the beam body of the mounting beam can be connected to the main body, and the connecting portion of the mounting beam is arranged on the beam body and is connected and fitted to the outer wall surface of the bottom plate to achieve stress dispersion, thereby reducing the probability of fracture between the mounting beam and the bottom plate when the box body is mounted on the main body.

[0011] In some embodiments, the connecting portion extends outward from the beam body and beyond the beam body.

[0012] By adopting the above-mentioned technical solution, the connecting part can extend and exceed the beam body, that is, the connecting part has a larger fitting area with the outer wall surface of the base plate, and the force dispersion effect of the connecting part on the base plate is better, so that the risk of fracture between the installation beam and the base plate is lower, and the box is mounted on the main body more stably.

[0013] In some embodiments, the beam body is spaced apart from the outer wall surface.

[0014] By adopting the above-mentioned technical solution, when the connecting portion of the mounting beam is connected to the base plate and fits against the outer wall surface of the base plate, a gap will be formed between the beam body of the mounting beam and the outer wall surface of the base plate, so that the beam body can form an avoidance effect on the outer wall surface of the base plate, thereby reducing the risk of interference between the beam body and the structure arranged on the outer wall surface of the base plate.

[0015] In some embodiments, a mounting structure is provided on the beam body, and the beam body is configured to be connected to the main body through the mounting structure; along the thickness direction of the base plate, the projection of the mounting structure is located within the projection of the connecting portion.

[0016] By adopting the above-mentioned technical solution, when the beam body of the mounting beam is connected to the main body through the mounting structure, the main body may vibrate and cause the box to vibrate relative to the main body, thereby causing the overall weight of the box to generate a large force between the mounting structure and the main body; at the same time, a certain amplitude of vibration will also be generated between the connecting portion of the mounting beam and the bottom plate, thereby generating a large force. By arranging the mounting structure so that the projection in the thickness direction of the bottom plate is located inside the connecting portion, the position of the force between the main body and the mounting structure and the force between the connecting portion and the bottom plate in the thickness direction of the bottom plate roughly coincides, thereby effectively reducing the force between the main body and the mounting structure and the force between the connecting portion and the bottom plate to form a lever on the mounting beam, reducing damage to the mounting beam and the main body connected to the mounting beam and the bottom plate, and reducing the risk of fracture between the mounting beam and the bottom plate, so that the box is more stably mounted on the main body.

[0017] In some embodiments, the beam body abuts against the outer wall surface.

[0018] By adopting the above-mentioned technical solution, on the basis that the connecting portion of the mounting beam can be connected to and at least partially adhere to the outer wall surface of the base plate, the beam body can also abut the outer wall surface, thereby effectively increasing the contact area between the mounting beam and the base plate, that is, the mounting beam can simultaneously disperse the force acting on the base plate through the beam body and the connecting portion, further reducing the risk of fracture between the mounting beam and the base plate.

[0019] In some embodiments, the entirety of the connecting portion is configured to be symmetrically arranged about the central axis of the beam body.

[0020] By adopting the above technical solution, the process of transmitting the force between the main body and the beam body to the connection part and the base plate is more even, so that the force dispersion effect of the connection part on the base plate is better and the risk of fracture between the installation beam and the base plate is lower.

[0021] In some embodiments, the base plate is provided with a beam body along its central axis.

[0022] By adopting the above technical solution, when the main body vibrates, the box also vibrates relative to the main body, and the mounting beam is connected to the main body, which is equivalent to the other parts of the box vibrating relative to the mounting beam; the beam body of the mounting beam is arranged on the central axis of the base plate, that is, the mounting beam is located at the amplitude center of the base plate, and the connecting part of the mounting beam is more evenly subjected to the force of the base plate, thereby reducing the risk of breakage of the mounting beam to a certain extent.

[0023] In some embodiments, there are multiple connecting parts, and the multiple connecting parts are arranged at intervals.

[0024] By adopting the above technical solution, multiple spaced connection parts can be used to connect and fit with the bottom plate, and the force acting on the bottom plate can be dispersed by multiple connection parts, which can effectively reduce the risk of breakage between the connection parts and the bottom plate.

[0025] In some embodiments, the mounting beam also includes a beam body, the part of the beam body facing the outer wall forms a connecting part, and the part of the beam body facing away from the outer wall forms a mounting part, the mounting part is used to connect the main body, and along the thickness direction of the base plate, the projection of the mounting part is located within the projection of the connecting part.

[0026] By adopting the above-mentioned technical solution, the projection of the mounting portion is set to be located within the projection of the connecting portion in the direction of the base plate, that is, the area of ​​the connecting portion is larger than the area of ​​the mounting portion. The larger area of ​​the connecting portion is used to achieve connection and fit with the base plate, which can disperse the force exerted by the base plate on the connecting portion, thereby effectively reducing the risk of fracture between the connecting portion and the base plate.

[0027] In some embodiments, the bottom plate is provided with a flow channel, the flow channel contains a heat exchange medium, and along the thickness direction of the bottom plate, a projection of the flow channel and a projection of the connecting portion are separated from each other.

[0028] By adopting the above technical solution, the flow channel and the connecting portion can be separated in the thickness direction of the bottom plate, thereby reducing the influence of the connecting portion on the flow channel.

[0029] In a second aspect, an embodiment of the present application further provides a battery, comprising a battery cell and a box as described above, wherein the battery cell is located in the box.

[0030] Beneficial effects of the embodiments of the present application: The battery provided in the embodiments of the present application includes the above-mentioned box body, and the overall structure of the battery is more stable while the risk of fracture between the mounting beam and the bottom plate of the box body is low.

[0031] In a third aspect, an embodiment of the present application further provides an electrical device, comprising a main body and a battery as described above, wherein the battery housing is disposed on the main body, and the battery is used to provide electrical energy.

[0032] Beneficial effects of the embodiments of the present application: The electrical equipment provided by the embodiments of the present application includes the above-mentioned battery. When the overall structure of the battery is more stable, the process of the battery being set on the main body and providing electrical energy to the main body is more stable, and the risk of the battery falling off the main body is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] FIG1 is a schematic structural diagram of a vehicle provided in some embodiments of the present application;

[0035] FIG2 is an exploded view of a battery provided in some embodiments of the present application;

[0036] FIG3 is a schematic diagram of a partial structure of a box including a bottom plate provided in some embodiments of the present application;

[0037] FIG4 is a schematic diagram of the connection structure between the base plate and the mounting beam provided in some embodiments of the present application;

[0038] FIG5 is a schematic structural diagram of a mounting beam provided in some embodiments of the present application;

[0039] FIG6 is a schematic structural diagram of another base plate provided in some embodiments of the present application;

[0040] FIG7 is a schematic structural diagram of another mounting beam provided in some embodiments of the present application;

[0041] FIG8 is a schematic structural diagram of another mounting beam provided in some embodiments of the present application;

[0042] FIG9 is a schematic structural diagram of another mounting beam provided in some embodiments of the present application;

[0043] FIG10 is a schematic structural diagram of another mounting beam provided in some embodiments of the present application.

[0044] Among them, the reference numerals in the figures are:

[0045] 1000. Vehicle;

[0046] 100, battery, 200, controller, 300, motor;

[0047] 10. Box, 11. First part, 12. Second part, 20. Battery cell;

[0048] 110, bottom plate, 111, outer wall, 1101, flow channel;

[0049] 120. Mounting beam, 121. Connecting portion, 122. Beam body, 1221. Mounting structure;

[0050] L, length direction; N, thickness direction. DETAILED DESCRIPTION

[0051] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0052] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0054] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0055] Currently, market developments indicate that power batteries are becoming increasingly widely used. They are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment and aerospace. As power battery applications continue to expand, market demand is also growing.

[0056] When the battery is mounted for use, it will be connected to the main body of the electrical equipment through the beam structure provided on the battery box, so that the battery can be mounted and fixed on the main body of the electrical equipment such as vehicles, aircraft, ships, etc., and provide electrical energy to the main body. However, during operation, the electrical equipment may vibrate. For example, a vehicle may be bumpy during operation, which will cause a certain amplitude of vibration between the connected main body and the battery, that is, stress will be generated between the main body and the beam structure provided on the battery box, and the beam structure is connected to the bottom plate of the box, so a certain amplitude of vibration will also be generated between the beam structure and the bottom plate, and a large stress will be generated. Since the structural strength of the beam structure is relatively high, the beam structure can withstand the stress generated between the main body and the main body, and the probability of the beam structure breaking is low. The stress generated between the beam structure and the bottom plate can easily lead to a break between the beam structure and the bottom plate, or cause the risk of damage such as deformation and cracking of the bottom plate.

[0057] Based on the above considerations, in order to solve the problem in the related technology that when the box is mounted and used, large stress may be generated between the beam structure and the bottom plate, and fracture is likely to occur between the beam structure and the bottom plate, a box is designed. The connecting part of the mounting beam is used to connect to the bottom plate, and at least part of the connecting part is attached to the outer wall surface of the bottom plate. The connecting part is used to increase the contact area with the bottom plate, thereby achieving stress dispersion between the mounting beam and the bottom plate, thereby effectively reducing the probability of fracture, damage, deformation and other risks between the mounting beam and the bottom plate.

[0058] In such a box, a connecting part is used to connect to the bottom plate, and the connecting part and the outer wall surface of the bottom plate are in contact with each other. When the main body of the electrical equipment vibrates during the mounting and use of the box, the bottom plate will also vibrate to a certain amplitude relative to the mounting beam, thereby generating stress between the bottom plate and the mounting beam. The connection method in which the connecting part and the outer wall surface of the bottom plate are in contact with each other can disperse the stress between the bottom plate and the mounting beam to reduce the impact of stress concentration, reduce the risk of deformation, fracture, breakage and other damage between the mounting beam and the bottom plate due to stress concentration, and make the structure of the box more stable during use, thereby increasing the service life of the box.

[0059] The box disclosed in the embodiments of the present application can be used for electrical devices that use batteries as power sources or various energy storage systems that use batteries as energy storage elements. Electrical devices can include, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, battery-powered vehicles, electric cars, ships, spacecraft, and the like. Among them, electric toys can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, and the like, and spacecraft can include airplanes, rockets, space shuttles, and spacecraft, and the like.

[0060] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0061] Please refer to Figure 1, which is a schematic structural diagram of a vehicle 1000 provided in some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 can be provided at the bottom, head or tail of the vehicle 1000. The battery 100 can be used to power the vehicle 1000. For example, the battery 100 can serve as an 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 power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0062] In some embodiments of the present application, the battery 100 can serve not only as an operating power source for the vehicle 1000, but also as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0063] Please refer to Figure 2, which is an exploded view of a battery 100 provided in some embodiments of the present application. The battery 100 includes a housing 10 and a battery cell 20, with the battery cell 20 housed within the housing 10. The housing 10 provides a storage space for the battery cell 20 and can have various structures. In some embodiments, the housing 10 can include a first portion 11 and a second portion 12, which overlap each other and together define a storage space for the battery cell 20. The second portion 12 can be a hollow structure with one end open. The first portion 11 can be a plate-like structure, with the first portion 11 overlapping the open side of the second portion 12, so that the first portion 11 and the second portion 12 together define a storage space. Alternatively, the first portion 11 and the second portion 12 can each be a hollow structure with one end open, with the open side of the first portion 11 overlapping the open side of the second portion 12. Of course, the housing 10 formed by the first portion 11 and the second portion 12 can have various shapes, such as a cylinder, a rectangular parallelepiped, etc.

[0064] In the battery 100, there may be multiple battery cells 20, and the multiple battery cells 20 may be connected in series, in parallel, or in a hybrid connection. A hybrid connection refers to a combination of series and parallel connections among the multiple battery cells 20. The multiple battery cells 20 may be directly connected in series, in parallel, or in a hybrid connection, and then the entire battery cell 20 may be housed within the housing 10. Alternatively, the battery 100 may be constructed by first connecting multiple battery cells 20 in series, in parallel, or in a hybrid connection to form a battery module, which is then connected in series, in parallel, or in a hybrid connection to form a complete battery module, and then housed within the housing 10. The battery 100 may also include other structures, such as a busbar assembly for electrically connecting the multiple battery cells 20.

[0065] Each battery cell 20 may be a secondary battery or a primary battery, and may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular, or in other shapes.

[0066] According to some embodiments of the present application, please refer to Figures 2 to 4. The embodiments of the present application provide a box body 10, which is used to be set on the main body of the electrical equipment. The box body 10 includes a bottom plate 110 and a mounting beam 120. The bottom plate 110 has an outer wall surface 111. The mounting beam 120 is used to connect the main body. The mounting beam 120 includes a connecting portion 121. The connecting portion 121 is configured to be connected to the bottom plate 110, and at least a portion of the connecting portion 121 is in contact with the outer wall surface 111.

[0067] The bottom plate 110 is the base structure of the box body 10 and is generally a plate-shaped structure. It is understood that the bottom plate 110 can be made of, but not limited to, aluminum, steel, iron, or alloy plates. The outer wall 111 of the bottom plate 110 refers to the side of the bottom plate 110 facing the outside of the box body 10.

[0068] The main body of the electrical equipment refers to the main structure of the electrical equipment. For example, when the electrical equipment is a vehicle 1000, the main body is the body of the vehicle 1000, and the box 10 is connected to the body for assembly and use.

[0069] The mounting beam 120 is a beam structure provided on the base plate 110 and used to connect the main body. The mounting beam 120 allows the box 10 to be mounted on the main body for use. The mounting beam 120 can be connected to the main body by fastening the mounting beam 120 to corresponding portions of the main body using bolts or other fasteners. The mounting beam 120 can be made of, but is not limited to, aluminum, steel, or alloy. There can be one or more mounting beams 120. If there is only one mounting beam 120, it can be located anywhere on the outer wall 111 of the base plate 110 and connected to the base plate 110. If there are multiple mounting beams 120, the multiple mounting beams 120 can be arranged at intervals along the length of the base plate 110. For example, in some specific embodiments, there is only one mounting beam 120, and the mounting beam 120 is arranged along the central axis a of the base plate 110.

[0070] The mounting beam 120 includes a connecting portion 121, which is used to connect to the base plate 110 and mate with the outer wall surface 111 of the base plate 110. Optionally, the connecting portion 121 can be an external structure provided on the mounting beam 120, such as a fin, a flat plate, a support block, or the like. Such a structure can be provided on the mounting beam 120 by welding, bonding, screwing, or other methods. In this case, the number of connecting portions 121 can be one or more. Alternatively, the connecting portion 121 can be formed by a portion of the mounting beam 120 for connecting to the base plate 110. For example, the connecting portion 121 can be the side wall of the mounting beam 120 facing the base plate 110. In this case, the surface area of ​​the side wall can be increased by widening the mounting beam 120, thereby increasing the area of ​​the mate connection with the outer wall surface 111 of the base plate 110. Alternatively, the surface area of ​​the side wall can be increased by widening only the side wall on the side.

[0071] Among them, the connecting part 121 is connected to the base plate 110. Optionally, the connecting part 121 and the base plate 110 can be connected by welding, bonding, screwing, etc.; for example, in some specific embodiments, the connecting part 121 can be connected to the base plate 110 by spot welding to form a whole.

[0072] At least a portion of the connecting portion 121 is in contact with the outer wall surface 111. It can be understood that the side wall of the connecting portion 121 facing the outer wall surface 111 can be completely in contact with the outer wall surface 111; or, a bending structure or an avoidance structure can be formed on the connecting portion 121 so that a portion of the connecting portion 121 is in contact with the outer wall surface 111.

[0073] The box body 10 provided in the embodiment of the present application can be connected to the main body of the electrical equipment through the mounting beam 120, wherein the mounting beam 120 is connected and fits with the bottom plate 110 through the connecting portion 121. The mounting beam 120 can disperse the stress between the bottom plate 110 and the mounting beam 120 by setting the connecting portion 121, so that the risk of fracture between the bottom plate 110 and the connecting portion 121 is reduced, and the box body 10 is more reliable when mounted on the main body of the electrical equipment through the mounting beam 120.

[0074] According to some embodiments of the present application, referring to FIG. 2 to FIG. 5 , the mounting beam 120 further includes a beam body 122 . The beam body 122 is used to be connected to the main body, and the connecting portion 121 is disposed on the beam body 122 .

[0075] It can be understood that the beam body 122 refers to the beam structure part of the mounting beam 120, and the connecting part 121 can be set on the beam body 122, for example, by welding, screwing, bonding and fixed connection with the beam body 122, or integrally formed on the beam body 122.

[0076] Among them, the beam body 122 can adopt an extruded aluminum structure; the beam body 122 is used to connect to the main body. Optionally, a connecting hole (through hole, threaded hole, etc.) can be opened on the beam body 122, and fasteners such as bolts and screws can be passed through the connecting hole to fix the beam body 122 to the main body.

[0077] With such an arrangement, when the box body 10 is mounted on the main body using the mounting beam 120, the beam body 122 of the mounting beam 120 can be connected to the main body, and the connecting portion 121 of the mounting beam 120 is arranged on the beam body 122 and is connected and fitted to the outer wall surface 111 of the bottom plate 110 to achieve the dispersion of the force, thereby reducing the probability of fracture between the mounting beam 120 and the bottom plate 110 when the box body 10 is mounted on the main body.

[0078] According to some embodiments of the present application, referring to FIG. 2 and FIG. 4 to FIG. 8 , the connecting portion 121 extends outward from the beam body 122 and exceeds the beam body 122 .

[0079] It is understood that the connection portion 121 extends outward and beyond the beam body 122. The connection portion 121 can extend in any direction outside the beam body 122 and beyond the beam body 122, and then is connected to the bottom plate 110 through the connection portion 121, thereby achieving stress distribution between the bottom plate 110 and the connection portion 121. The connection portion 121 can be provided on one side of the beam body 122 and extend outward from the beam body 122, or the connection portion 121 can extend outward from the beam body 122 on both opposite sides of the beam body 122.

[0080] For example, in some specific embodiments, in a direction parallel to the outer wall surface 111 and perpendicular to the length direction L of the beam body 122, the connecting portion 121 can extend outward from the beam body 122 and beyond the beam body 122, so that the connecting portion 121 has a larger surface area, that is, the area where the connecting portion 121 fits with the outer wall surface 111 of the base plate 110 can be larger, thereby dispersing the stress between the base plate 110 and the mounting beam 120, so that the risk of fracture between the base plate 110 and the connecting portion 121 is reduced.

[0081] With such a configuration, the connecting portion 121 can extend beyond the beam body 122, that is, the connecting portion 121 has a larger contact area with the outer wall surface 111 of the bottom plate 110, and the connecting portion 121 has a better dispersion effect on the force acting on the bottom plate 110, so that the risk of fracture between the mounting beam 120 and the bottom plate 110 is lower, and the box body 10 is more stably mounted on the main body.

[0082] According to some embodiments of the present application, referring to FIG. 2 , FIG. 4 and FIG. 5 , the beam body 122 is spaced apart from the outer wall surface 111 .

[0083] It can be understood that when the connecting portion 121 is affixed to and connected to the outer wall surface 111, the beam body 122 is spaced apart from the outer wall surface 111; that is, a side surface of the connecting portion 121 that is affixed to the outer wall surface 111 and a side surface of the beam body 122 facing the outer wall surface 111 form a drop in the thickness direction N of the bottom plate 110; optionally, the connecting portion 121 can be fixedly connected to the side surface of the beam body 122 facing the outer wall surface 111, so that the connecting portion 121 forms the above-mentioned drop according to its own thickness.

[0084] With such a configuration, when the connecting portion 121 of the mounting beam 120 is connected to the base plate 110 and fits in contact with the outer wall surface 111 of the base plate 110, a gap is formed between the beam body 122 of the mounting beam 120 and the outer wall surface 111 of the base plate 110, so that the beam body 122 can form a avoidance effect on the outer wall surface 111 of the base plate 110, thereby reducing the risk of interference between the beam body 122 and the structure arranged on the outer wall surface 111 of the base plate 110.

[0085] According to some embodiments of the present application, please refer to Figures 2, 4 and 5. An installation structure 1221 is provided on the beam body 122, and the beam body 122 is configured to be connected to the main body through the installation structure 1221; along the thickness direction N of the base plate 110, the projection of the installation structure 1221 is located within the projection of the connecting portion 121.

[0086] It can be understood that the above-mentioned mounting structure 1221 can be a mounting hole (threaded hole, through hole, etc.), and the beam body 122 can be connected to the main body through the mounting hole using fasteners such as bolts and screws; or, the mounting structure 1221 can also be a welded area for welding, and the welded area can be welded to the main body to form a whole through a welding process.

[0087] In this way, when the beam body 122 of the mounting beam 120 is connected to the main body through the mounting structure 1221, when the main body vibrates, the box body 10 will vibrate relative to the main body, thereby causing the overall weight of the box body 10 to generate a large force between the mounting structure 1221 and the main body; at the same time, vibration will also be generated between the connecting portion 121 of the mounting beam 120 and the bottom plate 110, thereby generating a large force. By arranging the mounting structure 1221 so that the projection in the thickness direction N of the bottom plate 110 is located inside the connecting portion 121, the main body and the mounting structure 1221 are The force between 221 and the force between the connecting portion 121 and the bottom plate 110 roughly coincide with the position in the thickness direction N of the bottom plate 110, thereby effectively reducing the force between the main body and the mounting structure 1221 and the force between the connecting portion 121 and the bottom plate 110, forming a lever on the mounting beam 120, reducing the stress on the mounting beam 120 and between the main body connected to the mounting beam 120 and the bottom plate 110, and the risk of fracture between the mounting beam 120 and the bottom plate 110 is lower, and the box body 10 is more stably mounted on the main body.

[0088] According to some embodiments of the present application, please refer to Figures 6 to 8. Figure 6 is a structural schematic diagram of another base plate 110 provided in some embodiments of the present application, wherein the base plate 110 in Figure 6 can be adapted to the mounting beam 120 in Figure 7, the mounting beam 120 in Figure 8 or other multiple mounting beams 120 that meet the requirements. Therefore, the base plate 110 in Figure 6 does not show the specific structure of the mounting beam 120.

[0089] In this embodiment, the beam body 122 abuts against the outer wall surface 111 .

[0090] It can be understood that when the connecting portion 121 is affixed to and connected to the outer wall surface 111, the beam body 122 is in contact with the outer wall surface 111, that is, the side surface of the connecting portion 121 for affixing to the outer wall surface 111 is flush with the side surface of the beam body 122 facing the outer wall surface 111 in the thickness direction N of the bottom plate 110; optionally, a groove can be formed on the beam body 122, and the connecting portion 121 can be fixed in the groove so that the surface of the beam body 122 and the surface of the connecting portion 121 are flush; or, the connecting portion 121 can be fixedly set on the surface of the beam body 122 intersecting the outer wall surface 111, and the side surface of the connecting portion 121 for affixing to the outer wall surface 111 is flush with the side surface of the beam body 122 facing the outer wall surface 111.

[0091] With such arrangement, on the basis that the connecting portion 121 of the mounting beam 120 can be connected to and at least partially adhere to the outer wall surface 111 of the base plate 110, the beam body 122 can also abut against the outer wall surface 111, thereby effectively increasing the contact area between the mounting beam 120 and the base plate 110, that is, the mounting beam 120 can simultaneously disperse the force acting on the base plate 110 through the beam body 122 and the connecting portion 121, further reducing the risk of fracture between the mounting beam 120 and the base plate 110.

[0092] According to some embodiments of the present application, referring to FIG. 2 to FIG. 5 , the entire connecting portion 121 is configured to be symmetrically arranged about the central axis of the beam body 122 .

[0093] Optionally, the connecting portion 121 can be symmetrically arranged about the central axis b of the beam body 122 along its longitudinal direction L; or, the connecting portion 121 can also be symmetrically arranged about the central axis c of the beam body 122 perpendicular to the longitudinal direction L; as shown in Figure 5, the connecting portion in Figure 5 is symmetrical about the central axis b of the beam body 122 along its longitudinal direction L, and is also symmetrical about the central axis c of the beam body 122 perpendicular to the longitudinal direction L.

[0094] With such a configuration, utilizing the symmetrical distribution structure of the connecting portion 121 with respect to the beam body 122, the process of transmitting the force between the main body and the beam body 122 to between the connecting portion 121 and the base plate 110 is more even, thereby better dispersing the force of the connecting portion 121 on the base plate 110, and lowering the risk of fracture between the mounting beam 120 and the base plate 110.

[0095] According to some embodiments of the present application, referring to FIG. 2 to FIG. 5 , a beam body 122 is disposed along the center axis a of the bottom plate 110 .

[0096] The central axis a of the bottom plate 110 refers to an auxiliary line that can divide the bottom plate 110 into two symmetrical parts; the beam body 122 is arranged along the central axis a of the bottom plate 110 .

[0097] It can be understood that when the main body of the electrical equipment vibrates, since the beam body 122 of the mounting beam 120 is fixedly connected to the main body, a certain degree of vibration will also be generated between the connecting part 121 of the mounting beam 120 and the base plate 110, thereby generating stress between the connecting part 121 and the base plate 110.

[0098] With such an arrangement, when the main body vibrates, the box body 10 also vibrates relative to the main body, and the mounting beam 120 is connected to the main body, which is equivalent to the other parts of the box body 10 vibrating relative to the mounting beam 120; the beam body 122 of the mounting beam 120 is arranged along the central axis a of the bottom plate 110, that is, the mounting beam 120 is located at the amplitude center of the bottom plate 110, and the connecting part 121 of the mounting beam 120 is subjected to the force of the bottom plate 110 more evenly, thereby the risk of the mounting beam 120 breaking can also be reduced to a certain extent.

[0099] Optionally, mounting beams may be provided at both ends of the outer wall surface 111 of the bottom plate 110 with respect to the central axis a, and the box body 10 may be fixedly connected to the main body through the mounting beams to be mounted and used synchronously with the mounting beams 120 .

[0100] According to some embodiments of the present application, referring to FIG. 2 to FIG. 5 , there are multiple connecting portions 121 , and the multiple connecting portions 121 are arranged at intervals.

[0101] In which, multiple connecting parts 121 can be spaced apart in any direction; for example, multiple connecting parts 121 can be spaced apart in the length direction L of the beam body 122; or, multiple connecting parts 121 can also be spaced apart in the length direction L perpendicular to the beam body 122, for example, distributed on opposite sides of the beam body 122.

[0102] With such a configuration, multiple spaced connection parts 121 can be used to connect and fit with the base plate 110, and the force acting on the base plate 110 can be dispersed through the multiple connection parts 121, which can effectively reduce the risk of breakage between the connection parts 121 and the base plate 110.

[0103] According to some embodiments of the present application, please refer to Figures 6, 9 and 10, the mounting beam 120 also includes a beam body 122, the part of the beam body 122 facing the outer wall surface 111 forms a connecting portion 121, and the part of the beam body 122 facing away from the outer wall surface 111 forms a mounting portion, which is used to connect the main body. Along the thickness direction N of the base plate 110, the projection of the mounting portion is located within the projection of the connecting portion 121.

[0104] The portion of the beam body 122 facing the outer wall surface 111 forms the connecting portion 121, meaning that the connecting portion 121 is part of the beam body 122. By improving the beam body 122 itself, the projection of the mounting portion is positioned within the projection of the connecting portion 121 in the thickness direction N of the base plate 110. This increases the surface area of ​​one side of the connecting portion 121, thereby achieving a larger contact area between the connecting portion 121 and the outer wall surface 111 of the base plate 110. This improves the dispersion of the force exerted by the connecting portion 121 on the base plate 110, thereby reducing the risk of fracture between the mounting beam 120 and the base plate 110.

[0105] Optionally, the projection of the mounting portion is located within the projection of the connecting portion 121 in the thickness direction N of the base plate 110 as follows: the beam body 122 is set as a trapezoidal beam, that is, the cross-section of the beam body 122 is trapezoidal, and in this case, the side with the larger outer wall of the two parallel side walls of the trapezoidal beam can be used as the connecting portion 121; or, the beam body 122 is set as a convex beam, that is, the cross-section of the beam body 122 is roughly "convex", and in this case, the side with the larger outer wall of the convex beam can be used as the connecting portion 121; or, the beam body 122 is designed to be widened as a whole so that the surface area of ​​the outer wall of the beam body 122 used as the connecting portion 121 is increased.

[0106] In this way, the projection of the mounting portion is set to be located within the projection of the connecting portion 121 in the direction of the base plate 110, that is, the area of ​​the connecting portion 121 is larger than the area of ​​the mounting portion. The larger area of ​​the connecting portion 121 is used to achieve connection and fit with the base plate 110, which can disperse the force exerted by the base plate 110 on the connecting portion 121, thereby effectively reducing the risk of fracture between the connecting portion 121 and the base plate 110.

[0107] According to some embodiments of the present application, referring to Figures 2 to 5, the bottom plate 110 is provided with a flow channel 1101, which accommodates a heat exchange medium. Along the thickness direction N of the bottom plate 110, the projection of the flow channel 1101 and the projection of the connecting portion 121 are separated from each other.

[0108] The flow channel 1101 is used to allow the heat exchange medium to flow, so that the heat exchange medium can exchange heat with the structure in the box 10 (such as the battery cell 20) to achieve the purpose of cooling. Optionally, the heat exchange medium can be a liquid medium, such as cooling water, cooling oil, etc.

[0109] Alternatively, the flow channel 1101 may be formed using an inflation process, i.e., the bottom plate 110 may be an inflation cold plate formed using the inflation process. Due to the inflation cold plate process, the inflation cold plate has a relatively low mass, and thus, using the inflation cold plate as the bottom plate 110 can reduce the overall weight of the box 10.

[0110] It can be understood that the base plate 110 can also be a brazed cold plate formed by a stamping process, as shown in Figure 6; the base plate 110 shown in Figure 6 does not include the flow channel 1101, so that the base plate 110 can meet the mounting beam 120 with a connecting portion 121 having a larger surface area; optionally, the base plate 110 in Figure 6 can be, but is not limited to, applicable to the mounting beams 120 in Figures 5, 7, 9, and 10 or mounting beams 120 of other structures.

[0111] Such an arrangement can separate the flow channel 1101 and the connecting portion 121 in the thickness direction of the bottom plate 110 , thereby reducing the force between the connecting portion 121 and the bottom plate 110 that may cause damage to the flow channel 1101 .

[0112] For example, in some specific embodiments, the box body 10 includes a bottom plate 110 and a mounting beam 120, the bottom plate 110 is preferably a blown cold plate, and a flow channel 1101 is formed on the bottom plate 110 by a blowing process; the mounting beam 120 includes a beam body 122 and a connecting portion 121, the connecting portion 121 is a fin, and the beam body 122 is integrally formed with a plurality of fins on the side facing the bottom plate 110, and the plurality of fins are spaced apart along the length direction L of the beam body 122; the fins can be rectangular fins, and the fins extend out of the range of the beam body 122 in a direction parallel to the outer wall surface 111 and perpendicular to the length direction L of the beam body 122; when assembling, the beam body 122 is placed along the bottom plate 110. 10 is arranged along the central axis a, and each fin is respectively attached to the outer wall surface 111 of the base plate 110 and spot-welded to form a whole, wherein the portion where the fin is attached to the outer wall surface 111 needs to avoid the flow channel 1101 formed on the base plate 110, for example, the fin can be attached to the gap between the flow channels 1101, or the area around the flow channel 1101, etc.; at this time, a gap is formed between the beam body 122 and the outer wall surface 111, so that the beam body 122 can avoid the flow channel 1101; the connection between the fin and the base plate 110 can disperse the stress between the base plate 110 and the mounting beam 120, which can effectively reduce the risk of fracture between the base plate 110 and the mounting beam 120.

[0113] According to some embodiments of the present application, referring to FIG. 2 , in a second aspect, embodiments of the present application further provide a battery 100, comprising a battery cell 20 and the aforementioned housing 10, wherein the battery cell 20 is located within the housing 10. The battery 100 provided in the embodiments of the present application, comprising the aforementioned housing 10, has a lower risk of fracture between the mounting beam 120 and the bottom plate 110 of the housing 10, and the overall structure of the battery 100 is more stable.

[0114] According to some embodiments of the present application, referring to FIG. 1 , in a third aspect, embodiments of the present application further provide an electrical device comprising a main body and a battery 100 as described above, wherein a housing 10 of the battery 100 is disposed on the main body and the battery 100 is configured to provide electrical energy. The electrical device may be any of the electrical devices described in the above embodiments, such as a vehicle 1000 , and further description thereof will not be given here.

[0115] The electrical equipment provided in the embodiment of the present application includes the above-mentioned battery 100. When the overall structure of the battery 100 is more stable, the process of the battery 100 being set on the main body and providing electrical energy to the main body is more stable, and the risk of the battery 100 falling off the main body is lower.

[0116] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A box body, used to be installed on the main body of an electrical device, characterized in that: include: a bottom plate having an outer wall surface; as well as A mounting beam is used to connect the main body, the mounting beam comprises a connecting portion, the connecting portion is configured to be connected to the bottom plate, and at least a portion of the connecting portion is in contact with the outer wall surface.

2. The box according to claim 1, characterized in that: The mounting beam further comprises a beam body, wherein the beam body is used to be connected to the main body, and the connecting portion is arranged on the beam body.

3. The box according to claim 2, characterized in that: The connecting portion extends outward from the beam body and exceeds the beam body.

4. The box according to claim 2 or 3, characterized in that: The beam body is spaced apart from the outer wall surface.

5. The box according to any one of claims 2 to 4, characterized in that: The beam body is provided with a mounting structure, and the beam body is configured to be connected to the main body through the mounting structure; along the thickness direction of the bottom plate, the projection of the mounting structure is located within the projection of the connecting portion.

6. The box according to claim 2 or 3, characterized in that: The beam body is in contact with the outer wall surface.

7. The box according to any one of claims 2 to 6, characterized in that: The entirety of the connecting portion is configured to be symmetrically arranged about the central axis of the beam body.

8. The box according to any one of claims 2 to 7, characterized in that: The bottom plate is provided with the beam body along its central axis.

9. The box according to any one of claims 1 to 8, characterized in that: There are multiple connecting parts, and the multiple connecting parts are arranged at intervals.

10. The box according to claim 1, characterized in that: The mounting beam also includes a beam body, the portion of the beam body facing the outer wall surface forms the connecting portion, and the portion of the beam body facing away from the outer wall surface forms a mounting portion, the mounting portion is used to connect the main body, and along the thickness direction of the base plate, the projection of the mounting portion is located within the projection of the connecting portion.

11. The box according to any one of claims 1 to 10, characterized in that: The bottom plate is provided with a flow channel, and the flow channel contains a heat exchange medium. Along the thickness direction of the bottom plate, the projection of the flow channel and the projection of the connecting portion are separated from each other.

12. A battery, characterized in that: The invention comprises a battery cell and a box body as claimed in any one of claims 1 to 11, wherein the battery cell is located in the box body.

13. An electrical equipment, characterized in that: It comprises a main body and the battery as claimed in claim 12, wherein the housing of the battery is arranged on the main body, and the battery is used for providing electrical energy.

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