Box body, battery and electric equipment

Abstract

The invention relates to the technical field of battery structures, and provides a box body, a battery and electric equipment.The box body is used for containing a battery module and comprises a bottom plate, a mounting beam and a module beam, the bottom plate is provided with a first side face and a second side face which are opposite in the thickness direction, a reinforcing structure is arranged on the bottom plate, and the module beam is used for mounting the battery module; the module beam is arranged on the first side face, the mounting beam is used for mounting the box body and arranged on the second side face, and the reinforcing structure is used for being connected to the mounting beam and / or the module beam; according to the box body provided by the embodiment of the invention, the mounting beam and / or the module beam can be connected by utilizing the reinforcing structure, so that the connecting strength between the bottom plate and the mounting beam and / or the module beam can be improved, and the aim of meeting the requirement of the box body on relatively high structural strength can be fulfilled.

Description

Technical Field

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

[0002] When the battery is connected for use, the battery box is connected to the main body of the electrical device to achieve the connection between the battery and the device. However, when the battery is connected, the box needs to bear the weight of components such as the battery module, so the structural strength of the battery box is required to be relatively high. Summary of the invention

[0003] 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 the box structure strength requirement is high when the battery is connected for use.

[0004] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is:

[0005] In a first aspect, an embodiment of the present application provides a box for accommodating a battery module, the box comprising a bottom plate, a mounting beam and a module beam, the bottom plate having a first side surface and a second side surface opposite to each other in a thickness direction, a reinforcing structure being arranged on the bottom plate, the module beam being used for mounting the battery module, the module beam being arranged on the first side surface, the mounting beam being used for mounting the box, the mounting beam being arranged on the second side surface, wherein the reinforcing structure is used to be connected to the mounting beam and / or the module beam.

[0006] Beneficial effects of the embodiments of the present application: The box body provided by the embodiments of the present application, by arranging a reinforcing structure on the bottom plate, utilizes the reinforcing structure to connect the mounting beam and / or the module beam, so as to improve the connection strength between the bottom plate and the mounting beam and / or the module beam, thereby the module beam is less likely to be deformed, broken or otherwise damaged when the battery module is installed, and at the same time, the mounting beam is less likely to be deformed, broken or otherwise damaged when the box body is installed and connected for use, thereby being able to meet the purpose of the higher structural strength requirements of the box body.

[0007] In some embodiments, the reinforcement structure includes a first protrusion formed on the first side, and the first protrusion is configured to be connected to the module beam.

[0008] By adopting the above-mentioned technical solution, a first protrusion is formed on the first side surface of the bottom plate, and the module beam is connected by using the first protrusion to improve the connection strength between the module beam and the bottom plate. When the box is connected for use, the risk of deformation or fracture between the bottom plate and the module beam can be effectively reduced, and the module beam can withstand battery components of greater weight.

[0009] In some embodiments, a first cavity is formed on a side of the first protrusion facing away from the module beam.

[0010] By adopting the above technical solution, the first protrusion can be formed by the bottom plate being recessed toward the first side surface, so that a first protrusion in a protruding shape is formed on the first side surface, and a first cavity is formed on the side of the first protrusion away from the module beam.

[0011] In some embodiments, there are multiple first protrusions, and the multiple first protrusions are arranged on the first side surface at intervals.

[0012] By adopting the above-mentioned technical solution, by forming a plurality of first protrusions on the first side surface of the base plate, and utilizing the plurality of first protrusions to connect the module beam, the connection points between the module beam and the first side surface of the base plate can be increased, and the connection strength between the module beam and the base plate can be effectively improved, thereby effectively reducing the risk of deformation or fracture between the base plate and the module beam.

[0013] In some embodiments, a relief portion is provided on a side wall of the module beam facing the bottom plate, and the first protrusion is configured to be inserted into the relief portion.

[0014] By adopting the above-mentioned technical solution, by opening an avoidance portion on the corresponding beam side wall of the module beam, during assembly, the module beam is set at the corresponding position of the first side surface of the base plate, so that the first protrusion on the first side surface can be inserted in the avoidance portion, and then the first protrusion and the module beam are fixedly connected. Therefore, the first protrusion can improve the connection strength between the base plate and the module beam. The structure in which the first protrusion is inserted in the avoidance portion can also enable the module beam to be positioned and assembled on the first side surface, thereby effectively improving the accuracy of the installation position of the module beam.

[0015] In some embodiments, the avoidance portion is a through hole penetrating through the side wall of the module beam facing the bottom plate.

[0016] By adopting the above-mentioned technical solution, the avoidance portion is set as a through hole, and the module beam can be set on the first side during assembly, so that the first protrusion passes through the through hole and is inserted into the interior of the module beam, thereby realizing a fixed connection between the base plate and the module beam through the first protrusion.

[0017] In some embodiments, the first protrusion is connected to a side wall of the module beam facing away from the bottom plate.

[0018] By adopting the above-mentioned technical solution, the first protrusion can pass through the avoidance portion opened on the module beam and be connected to the side wall of the module beam facing away from the bottom plate, so that the first protrusion can position the module beam on the side of the side wall of the module beam facing the bottom plate, and at the same time be fixedly connected to the module beam on the side of the side wall of the module beam facing away from the bottom plate.

[0019] In some embodiments, the module beam is welded to the bottom plate to form a welded portion, and / or the mounting beam is welded to the bottom plate to form a welded portion.

[0020] By adopting the above-mentioned technical solution, the module beam and the base plate are welded to form a welding part, which can effectively improve the stability of the connection between the module beam and the base plate, and / or, the installation beam and the base plate are welded to form a welding part, which can effectively improve the stability of the connection between the installation beam and the base plate.

[0021] In some embodiments, in the thickness direction of the bottom plate, the projection of the mounting beam and the projection of the module beam at least partially overlap; the mounting beam, the module beam and the bottom plate are at least partially welded to form a welded portion.

[0022] By adopting the above-mentioned technical solution, the mounting beam and the module beam can have at least partial overlap in the thickness direction of the bottom plate, so that the mounting beam, the module beam and the bottom plate can form a welding portion connecting the three by welding, so as to improve the connection strength between the mounting beam, the module beam and the bottom plate, thereby being able to meet the purpose of the high structural strength requirement of the entire box.

[0023] In some embodiments, a welding avoidance hole is opened on the beam side wall of the module beam away from the bottom plate, and the welding portion is formed on the beam side wall of the module beam facing the bottom plate and exposed in the welding avoidance hole; and / or, a welding avoidance hole is opened on the beam side wall of the installation beam away from the bottom plate, and the welding portion is formed on the beam side wall of the installation beam facing the bottom plate and exposed in the welding avoidance hole.

[0024] By adopting the above-mentioned technical solution, the welding avoidance holes can be used to avoid welding operations during assembly, so that the welding operations can be performed on the inside of the module beam through the welding avoidance holes, thereby enabling the module beam and the bottom plate to be welded to form a welding portion, or the mounting beam and the bottom plate to be welded to form a welding portion, or the mounting beam, the module beam and the bottom plate to form a welding portion connecting the three through welding, so that the connection strength between the mounting beam, the module beam and the bottom plate can be strengthened.

[0025] In some embodiments, the reinforcement structure includes a second protrusion formed on the second side surface, and the second protrusion is configured to be connected to the mounting beam.

[0026] By adopting the above-mentioned technical solution, a second protrusion is formed on the second side surface of the bottom plate, and the second protrusion is used to connect the mounting beam to improve the connection strength between the mounting beam and the bottom plate. When the box is connected for use, the risk of deformation or fracture between the bottom plate and the mounting beam can be effectively reduced.

[0027] In some embodiments, a second cavity is formed on a side of the second protrusion facing away from the mounting beam.

[0028] By adopting the above technical solution, the second protrusion can be formed by the bottom plate being recessed toward the second side surface, so that a second protrusion in a protruding shape is formed on the second side surface, and a second cavity is formed on the side of the second protrusion away from the module beam.

[0029] In some embodiments, there are multiple second protrusions, and the multiple second protrusions are arranged on the second side surface at intervals.

[0030] By adopting the above-mentioned technical solution, by forming a plurality of second protrusions on the second side surface of the base plate, and utilizing the plurality of second protrusions to connect the mounting beam, it is possible to increase the number of connection points between the mounting beam and the second side surface of the base plate, and the connection strength between the mounting beam and the base plate is effectively improved, thereby effectively reducing the risk of deformation or fracture between the base plate and the mounting beam.

[0031] In some embodiments, a gap is formed between a beam side wall of the installation beam facing away from the bottom plate and the bottom plate, and the second protrusion is connected to the beam side wall of the module beam facing away from the bottom plate.

[0032] By adopting the above technical solution, the second protrusion can be located in the gap between the beam side wall of the base plate and the base plate and connected to the beam side wall of the mounting beam facing away from the base plate, thereby achieving the purpose of structural reinforcement of the base plate through the second protrusion and the mounting beam.

[0033] In some embodiments, an adhesive layer is provided between the module beam and the base plate, and the module beam is fixed to the base plate through the adhesive layer; and / or, an adhesive layer is provided between the installation beam and the base plate, and the installation beam is fixed to the base plate through the adhesive layer.

[0034] By adopting the above-mentioned technical scheme, on the basis of the module beam and the bottom plate being connected by the first protrusion or fixed by welding, the module beam and the bottom plate are bonded by the adhesive layer, thereby improving the stability of the connection between the module beam and the bottom plate, and further improving the connection strength between the module beam and the bottom plate; and / or, on the basis of the module mounting and the bottom plate being connected by the second protrusion or fixed by welding, the mounting beam and the bottom plate are bonded by the adhesive layer, thereby improving the stability of the connection between the mounting beam and the bottom plate, and further improving the connection strength between the mounting beam and the bottom plate, so as to achieve the purpose of meeting the high structural strength requirements of the box.

[0035] In some embodiments, the bottom plate is provided with a flow channel, and a heat exchange medium is contained in the flow channel to perform heat exchange with the battery module.

[0036] By adopting the above technical solution, a flow channel is set on the bottom plate to provide a heat exchange medium for heat exchange with the battery module, thereby achieving cooling of the internal battery module.

[0037] In a second aspect, an embodiment of the present application further provides a battery, comprising a battery module and a box as described above, wherein the battery module is accommodated in the box and mounted on a module beam.

[0038] 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. On the basis that the above-mentioned box body has high structural strength, the battery also has high structural strength, and the risk of box body deformation, breakage, etc. when the battery is connected for use is low.

[0039] In a third aspect, an embodiment of the present application further provides an electrical device, comprising a battery as described above, wherein the battery is used to provide electrical energy.

[0040] 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. On the basis of the battery having a high structural strength, the battery can provide electrical energy to the electrical equipment more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or related technical descriptions will be briefly introduced below. 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 creative work.

[0042] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0043] Figure 2 An exploded view of a battery provided for some embodiments of the present application;

[0044] Figure 3 A schematic diagram of the structure of a base plate provided in some embodiments of the present application from a first side perspective;

[0045] Figure 4 A schematic diagram of the structure when the bottom plate and the module beam are separated according to some embodiments of the present application;

[0046] Figure 5 A schematic diagram of the structure of a module beam facing the bottom plate provided in some embodiments of the present application;

[0047] Figure 6 A schematic diagram of the structure of a first protrusion provided in some embodiments of the present application when the first cavity is formed on one side away from the module beam;

[0048] Figure 7 A schematic diagram of the structure of a base plate provided in some embodiments of the present application from a second side perspective;

[0049] Figure 8A schematic diagram of the structure when the base plate and the mounting beam are separated according to some embodiments of the present application;

[0050] Fig. 9 This is a schematic structural diagram of some embodiments of the present application when the second protrusion is away from the side of the mounting beam to form a second cavity.

[0051] Among them, the reference numerals in the figure are:

[0052] 1000. Vehicles;

[0053] 100, battery, 200, controller, 300, motor;

[0054] 10. box body, 11. first part, 12. second part, 20. battery module;

[0055] 110, bottom plate, 111, first side surface, 112, second side surface, 113, reinforcement structure, 1131, first protrusion, 1132, first cavity, 1133, second protrusion, 1134, second cavity;

[0056] 120, module beam, 121, avoidance portion, 122, welding avoidance hole;

[0057] 130. Install beams;

[0058] H. Thickness direction. DETAILED DESCRIPTION

[0059] Embodiments of the present application are described in detail below, and examples of the embodiments 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.

[0060] In the description of the present 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 the present 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 should not be understood as a limitation on the present application.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0062] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0063] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0064] During use, the battery is generally assembled on electrical equipment through the mounting beams on the box. Therefore, when the battery is in use, the battery module inside the battery will exert a force on the box, that is, the box needs to bear the gravity of the battery module, so that the box needs to withstand a large force during the connection and use process; therefore, the structural strength of the box is required to be high, so as to reduce the risk of deformation, breakage and other damage to the box when the battery is in use.

[0065] In order to meet the high structural strength requirements of the box, a module beam can be set on the inner side of the bottom plate of the box, and the battery module can be assembled on the module beam. At the same time, a mounting beam can be set on the outer side of the bottom plate of the box, and the box can be connected by the mounting beam. The beam structure of the module beam and the mounting beam is used to strengthen the overall structural strength of the box to reduce the risk of deformation, fracture and other damage to the box. However, in actual use, the module beam and the mounting beam may fall off or break from the bottom plate, which may cause the box to be unable to be used normally, affecting the performance and life of the battery.

[0066] Based on the above considerations, in order to solve the problem of high requirements for the strength of the box structure when the battery is connected and used, a box is designed. By respectively arranging a module beam and a mounting beam on the first side and the second side of the box bottom plate, and arranging a reinforcing structure on the bottom plate, the reinforcing structure is used to connect the mounting beam and / or the module beam to improve the connection strength between the mounting beam and / or the module beam and the bottom plate.

[0067] In such a box, since the mounting beam and / or module beam are strengthened by the reinforcing structure arranged on the bottom plate, the connection strength between the mounting beam and / or module beam and the bottom plate is effectively improved. During the connection and use of the battery, the connection strength between the module beam and the bottom plate is improved, so the probability of risks of falling off, breaking, etc. between the module beam and the bottom plate is low; similarly, the connection strength between the mounting beam and the bottom plate is also improved, so the probability of risks of falling off, breaking, etc. between the mounting beam and the bottom plate is also low; therefore, the design of the bottom plate connecting the mounting beam and / or module beam by arranging a reinforcing structure can improve the structural strength of the box to improve the stability of the box when used.

[0068] The box disclosed in the embodiment of the present application can be used for electric devices that use batteries as power sources or various energy storage systems that use batteries as energy storage elements. Electric devices can be, but are not limited to, mobile phones, tablets, laptops, electric toys, electric tools, battery cars, electric cars, ships, spacecraft, etc. 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, etc., and spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0069] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device in an embodiment of the present application.

[0070] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and 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.

[0071] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve 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.

[0072] Please refer to Figure 2 , Figure 2 An exploded view of a battery 100 provided in some embodiments of the present application. The battery 100 includes a box 10 and a battery module 20, and the battery module 20 is accommodated in the box 10. Among them, the box 10 is used to provide a storage space for the battery module 20, and the box 10 can adopt a variety of structures. In some embodiments, the box 10 may include a first part 11 and a second part 12, the first part 11 and the second part 12 cover each other, and the first part 11 and the second part 12 jointly define a storage space for accommodating the battery module 20. The second part 12 may be a hollow structure with one end open, the first part 11 may be a plate-like structure, and the first part 11 covers the open side of the second part 12, so that the first part 11 and the second part 12 jointly define a storage space; the first part 11 and the second part 12 may also be hollow structures with one side open, and the open side of the first part 11 covers the open side of the second part 12. Of course, the box 10 formed by the first part 11 and the second part 12 can be in a variety of shapes, such as a cylinder, a cuboid, etc.

[0073] According to some embodiments of this application, please refer to Figures 2 to 4 as well as Figure 7 and Figure 8 The embodiment of the present application provides a box body 10 for accommodating a battery module 20. The box body 10 includes a bottom plate 110, a mounting beam 130 and a module beam 120. The bottom plate 110 has a first side surface 111 and a second side surface 112 opposite to each other in a thickness direction H. A reinforcing structure 113 is provided on the bottom plate 110. The module beam 120 is used to install the battery module 20. The module beam 120 is provided on the first side surface 111. The mounting beam 130 is used to install the box body 10. The mounting beam 130 is provided on the second side surface 112, wherein the reinforcing structure 113 is used to be connected to the mounting beam 130 and / or the module beam 120.

[0074] The bottom plate 110 is the base structure of the box body 10 , and the bottom plate 110 can generally be a plate-shaped structure; it can be understood that the bottom plate 110 can be, but is not limited to, an aluminum plate, a steel plate, an iron plate, an alloy plate, etc.

[0075] The first side surface 111 and the second side surface 112 of the bottom plate 110 refer to two opposite sides of the bottom plate 110 in the thickness direction H, wherein the first side surface 111 can be used as a side surface of the bottom plate 110 facing the inside of the box body 10, and correspondingly, the second side surface 112 can be used as a side surface of the bottom plate 110 facing the outside of the box body 10.

[0076] It can be understood that the reinforcement structure 113 is a structure provided on the bottom plate 110 and used to reinforce the connection with the mounting beam 130 and / or the module beam 120. Optionally, the reinforcement structure 113 may be a structure formed by the bottom plate 110 itself and protruding toward one side, such as a protruding structure or a bending structure formed by the bottom plate 110 by means of depression, bending, etc.; or, the reinforcement structure 113 may be an external structure fixed to the surface of the bottom plate 110 by means of welding, bonding, etc.

[0077] Optionally, a reinforcing structure 113 may be provided on the first side surface 111 of the base plate 110, and the module beam 120 is connected to the first side surface 111 of the base plate 110 via the reinforcing structure 113 to improve the connection strength between the module beam 120 and the base plate 110; alternatively, a reinforcing structure 113 may be provided on the second side surface 112 of the base plate 110, and the mounting beam 130 is connected to the second side surface 112 of the base plate 110 via the reinforcing structure 113 to improve the connection strength between the mounting beam 130 and the base plate 110; alternatively, a reinforcing structure 113 may be provided on both the first side surface 111 and the second side surface 112 of the base plate 110 to simultaneously improve the connection strength between the base plate 110 and the module beam 120 and the mounting beam 130.

[0078] The module beam 120 is disposed on the first side 111 of the bottom plate 110 and is used to mount the battery module 20; the module beam 120 may be, but is not limited to, an aluminum beam, a steel beam, an alloy beam, etc.; the module beam 120 may be an extruded aluminum structure, a return beam (i.e., the cross section of the module beam 120 is rectangular, such as Figure 4 As shown, Figure 4 The module beam 120 in the structure is a beam structure such as a U-shaped beam with a rectangular cross section, a Ji-shaped beam (i.e., the cross section of the module beam 120 is approximately Ji-shaped). The number of the module beams 120 may be one or more. When the number of the module beams 120 is multiple, the multiple module beams 120 may be arranged at intervals in the length direction (perpendicular to the thickness direction H) of the bottom plate 110, and the reinforcement structure 113 may be connected to at least one of the module beams 120. For example, the number of the module beams 120 may be two, and the two module beams 120 are respectively arranged at the two ends of the first side surface 111 along the length direction of the bottom plate 110, and the two module beams 120 are connected to the first side surface 111 of the bottom plate 110 through a reinforcement connection.

[0079] The mounting beam 130 is disposed on the second side surface 112 of the bottom plate 110 and is used to mount the box body 10; the mounting beam 130 may be, but is not limited to, an aluminum beam, a steel beam, an alloy beam, etc.; the mounting beam 130 may be a circular beam (i.e., the cross section of the mounting beam 130 is rectangular), a polygonal beam (i.e., the cross section of the mounting beam 130 is approximately polygonal, such as Figure 8As shown, Figure 8 The cross section of the mounting beam 130 is roughly a beam structure such as a "J" shape. The number of mounting beams 130 can be one or more. In the case where the number of mounting beams 130 is multiple, multiple mounting beams 130 can be arranged at intervals in the length direction of the bottom plate 110, and the reinforcing structure 113 can be connected to at least one of the mounting beams 130. For example, the number of mounting beams 130 can be selected to be three, two of the three mounting beams 130 are respectively arranged at the two ends of the second side 112 along the length direction of the bottom plate 110, and the other is arranged at the middle of the second side 112 along the length direction of the bottom plate 110, wherein the two mounting beams 130 arranged at the two ends can be connected to the second side 112 of the bottom plate 110 through the reinforcing structure 113, and the mounting beam 130 arranged in the middle can be directly welded, bonded, screwed, etc. to the second side 112 of the bottom plate 110.

[0080] The box body 10 provided in the embodiment of the present application is provided with a reinforcing structure 113 on the bottom plate 110, and the reinforcing structure 113 is used to connect the mounting beam 130 and / or the module beam 120 to improve the connection strength between the bottom plate 110 and the mounting beam 130 and / or the module beam 120, so that the probability of deformation, fracture and other damages of the module beam 120 when the battery module 20 is installed is low, and the probability of deformation, fracture and other damages of the mounting beam 130 when the box body 10 is installed and connected for use is also low, so that the purpose of meeting the higher structural strength requirements of the box body 10 can be met.

[0081] According to some embodiments of this application, please refer to Figures 2 to 4 The reinforcement structure 113 includes a first protrusion 1131 formed on the first side surface 111 , and the first protrusion 1131 is configured to be connected to the module beam 120 .

[0082] Among them, the first protrusion 1131 is formed on the first side surface 111. Optionally, the first protrusion 1131 can be formed by the base plate 110 protruding toward the first side surface 111; or, the first protrusion 1131 can be formed by an external component fixed to the base plate 110 by welding, bonding, screwing, etc.

[0083] The first protrusion 1131 may be, but is not limited to, a columnar structure, an arc-shaped structure, a hemispherical structure, a block structure, etc.; the number of the first protrusions 1131 may be one or more. When the number of the first protrusions 1131 is multiple, the multiple first protrusions 1131 may be arranged on the first side surface 111 along the length direction of the module beam 120 (perpendicular to the thickness direction H), or the multiple first protrusions 1131 may be distributed in an array on the first side surface 111.

[0084] The first protrusion 1131 is connected to the module beam 120. Optionally, the first protrusion 1131 can be connected to the module beam 120 by bonding, welding or screwing; or, the first protrusion 1131 can be inserted into the module beam 120 and then connected to the module beam 120 by bonding, welding or screwing.

[0085] In this way, by forming a first protrusion 1131 on the first side surface 111 of the bottom plate 110, and utilizing the first protrusion 1131 to connect the module beam 120, the connection strength between the module beam 120 and the bottom plate 110 is improved. When the box body 10 is connected for use, the risk of deformation or fracture between the bottom plate 110 and the module beam 120 can be effectively reduced, and thus the module beam 120 can withstand a battery module 20 of greater weight.

[0086] According to some embodiments of this application, please refer to Figure 4 , Figure 6 and Figure 7 A first cavity 1132 is formed on a side of the first protrusion 1131 away from the module beam 120 .

[0087] It is understandable that the first protrusion 1131 can be a structure protruding from the first side surface 111 formed by the bottom plate 110 being recessed toward the first side surface 111 , so that the first cavity 1132 is formed on the side of the first protrusion 1131 away from the module beam 120 .

[0088] With such arrangement, the processing step of the first protrusion 1131 of the bottom plate 110 can be carried out together with the processing step of manufacturing the bottom plate 110, thereby being able to effectively reduce the manufacturing steps of the box body 10 to improve the manufacturing efficiency of the box body 10; at the same time, the first protrusion 1131 whose back is the first cavity 1132 is formed by the depression of the bottom plate 110 itself, and compared with the method of adding an external structure to set the first protrusion 1131, the weight of the box body 10 can be maintained unchanged, and further, when the box body 10 is mounted and assembled by the mounting beam 130, the force exerted on the mounting beam 130 by the weight of the box body 10 will not increase, thereby being able to reduce the probability of damage to the mounting beam 130.

[0089] Optionally, a protrusion may be added to the mounting beam 130 so that when the mounting beam 130 is assembled on the second side surface 112, the protrusion can be inserted into the first cavity 1132; thus, when the module beam 120 and the first protrusion 1131 are welded, the protrusion, the module beam 120, and the first protrusion 1131 can be welded together to form a whole, so as to improve the connection strength between the module beam 120, the bottom plate 110, and the mounting beam 130. The mounting beam 130 may be provided with a protrusion by welding a block of an external device on the mounting beam 130, or by screwing a block on the mounting beam 130.

[0090] According to some embodiments of this application, please refer to Figure 2 , Figure 4 and Figure 7 There are multiple first protrusions 1131 , and the multiple first protrusions 1131 are arranged on the first side surface 111 at intervals.

[0091] The first protrusions 1131 may be arranged at intervals along any direction on the first side surface 111. For example, in some specific embodiments, the plurality of first protrusions 1131 may be arranged at intervals along the length direction of the module beam 120. When the module beam 120 is arranged on the first side surface 111, the plurality of first protrusions 1131 may be distributed along the length direction of the module beam 120 and respectively connected to the module beam 120, thereby achieving a reinforced connection between the module beam 120 and the first side surface 111, and effectively improving the connection strength between the module beam 120 and the bottom plate 110.

[0092] In this way, by forming a plurality of first protrusions 1131 on the first side surface 111 of the base plate 110 and utilizing the plurality of first protrusions 1131 to connect the module beam 120, the connection points between the module beam 120 and the first side surface 111 of the base plate 110 can be increased, and the connection strength between the module beam 120 and the base plate 110 can be effectively improved, thereby effectively reducing the risk of deformation or fracture between the base plate 110 and the module beam 120.

[0093] According to some embodiments of this application, please refer to Figure 4 , Figure 5 and Figure 7 A relief portion 121 is provided on the side wall of the module beam 120 facing the bottom plate 110 , and the first protrusion 1131 is configured to be inserted into the relief portion 121 .

[0094] Among them, the avoidance portion 121 can be a hole structure opened on the side wall of the module beam 120 facing the bottom plate 110, the first protrusion 1131 can be inserted into the hole structure, and the first protrusion 1131 can be connected to any side wall of the module beam 120, for example, it can be connected to the side wall of the module beam 120 facing the bottom plate 110, or it can be connected to the side wall of the module beam 120 facing away from the bottom plate 110.

[0095] Alternatively, the avoidance portion 121 can be a groove structure formed on the side wall of the module beam 120 facing the base plate 110, the first protrusion 1131 can be inserted into the groove structure and accommodated in the groove structure, and the first protrusion 1131 can be connected to the inner wall of the groove structure, for example, by fixed connection through welding, bonding, etc.

[0096] In this way, by opening an avoidance portion 121 on the corresponding beam side wall of the module beam 120, during assembly, the module beam 120 is set at the corresponding position of the first side surface 111 of the base plate 110, so that the first protrusion 1131 on the first side surface 111 can be inserted into the avoidance portion 121, and then the first protrusion 1131 and the module beam 120 are fixedly connected to improve the connection strength between the base plate 110 and the module beam 120; at the same time, the structure in which the first protrusion 1131 is inserted into the avoidance portion 121 can also enable the module beam 120 to be positioned and assembled on the first side surface 111, thereby improving the accuracy of the installation position of the module beam 120 to a certain extent.

[0097] According to some embodiments of this application, please refer to Figure 4 , Figure 5 and Figure 7 The avoidance portion 121 is a through hole that penetrates the side wall of the module beam 120 toward the bottom plate 110 .

[0098] Among them, the through hole opened on the side wall of the module beam 120 facing the base plate 110 can have a hole diameter that is the same as the maximum outer diameter of the first protrusion 1131. During assembly, the first protrusion 1131 can be correspondingly clamped in the through hole to achieve positioning assembly; or, the through hole opened on the side wall of the module beam 120 can have a hole diameter larger than the maximum outer diameter of the first protrusion 1131. During assembly, it is sufficient to insert the first protrusion 1131 into the corresponding through hole.

[0099] In this way, the avoidance portion 121 is set as a through hole, and the module beam 120 can be set on the first side 111 during assembly, so that the first protrusion 1131 passes through the through hole and is inserted into the interior of the module beam 120, thereby realizing a fixed connection between the base plate 110 and the module beam 120 through the first protrusion 1131.

[0100] According to some embodiments of this application, please refer to Figures 3 to 5 as well as Figure 7 The first protrusion 1131 is connected to the side wall of the module beam 120 which is away from the bottom plate 110 .

[0101] It can be understood that the first protrusion 1131 can be inserted into the interior of the module beam 120 through the avoidance portion 121, and the first protrusion 1131 can abut against the side wall of the module beam 120 facing away from the bottom plate 110 inside the module beam 120, so as to facilitate the connection between the first protrusion 1131 and the side wall of the module beam 120 facing away from the bottom plate 110.

[0102] Optionally, the connection between the first protrusion 1131 and the side wall of the module beam 120 away from the bottom plate 110 can be but not limited to welding, bonding, screwing, etc. For example, the first protrusion 1131 can be fixed to the side wall of the module beam 120 away from the bottom plate 110 by spot welding.

[0103] In this way, the first protrusion 1131 can pass through the avoidance portion 121 opened on the module beam 120 and be connected to the beam side wall of the module beam 120 facing away from the bottom plate 110, so that the first protrusion 1131 can position the module beam 120 on the side of the beam side wall of the module beam 120 facing the bottom plate 110, and at the same time be fixedly connected to the module beam 120 on the side of the beam side wall of the module beam 120 facing away from the bottom plate 110.

[0104] According to some embodiments of this application, please refer to Figures 2 to 4 as well as Figure 7 The module beam 120 and the bottom plate 110 are welded to form a welding portion.

[0105] It can be understood that on the basis that the first side surface 111 of the base plate 110 is connected to the module beam 120 through the first protrusion 1131, the module beam 120 and the base plate 110 can also be welded to form a welding portion (not shown in the figure) by welding the module beam 120 and the base plate 110 to achieve the connection between the module beam 120 and the base plate 110 to form an integral body.

[0106] Among them, the welding form between the module beam 120 and the base plate 110 can be burning welding, spot welding, etc.; for example, in some specific implementations, the module beam 120 and the base plate 110 can be welded by spot welding, and the use of spot welding can reduce the risk of the base plate 110 being burned through.

[0107] The specific location where the module beam 120 and the base plate 110 are welded to form the welding portion can be: the module beam 120 is attached to the beam side wall of the base plate 110, and welding is performed on the beam side wall where the module beam 120 is attached to the base plate 110, so that the welding portion is formed between the beam side wall of the module beam 120 and the base plate 110; or the module beam 120 intersects on the beam side wall of the base plate 110, that is, on the beam side wall intersecting with the beam side wall attached to the base plate 110, and welding is performed on the end where the module beam 120 intersects with the beam side wall of the base plate 110 and is close to the base plate 110, so that the welding portion is formed between the beam side wall where the module beam 120 intersects with the base plate 110 and the base plate 110.

[0108] In this way, the module beam 120 and the bottom plate 110 are welded to form a welding portion, which can effectively improve the stability of the connection between the module beam 120 and the bottom plate 110. At the same time, the module beam 120 can also be connected to the bottom plate 110 through the first protrusion 1131. The multiple connection methods between the module beam 120 and the bottom plate 110 can effectively improve the connection strength between the module beam 120 and the bottom plate 110.

[0109] According to some embodiments of this application, please refer to Figure 3 , Figure 4 and Figure 7 The mounting beam 130 and the bottom plate 110 are welded to form a welding portion.

[0110] It can be understood that the second side surface 112 of the bottom plate 110 can be welded to the mounting beam 130, and the mounting beam 130 and the bottom plate 110 are welded to form a welding portion, so that the mounting beam 130 and the bottom plate 110 are connected to form an integral body.

[0111] Among them, the welding form between the mounting beam 130 and the base plate 110 can be burning welding, spot welding, etc.; for example, in some specific embodiments, the mounting beam 130 and the base plate 110 can be welded by spot welding, and the use of spot welding can reduce the risk of the base plate 110 being burned through.

[0112] The specific location where the mounting beam 130 and the base plate 110 are welded to form the welding portion can be: the mounting beam 130 is attached to the beam side wall of the base plate 110, and welding is performed on the beam side wall where the mounting beam 130 is attached to the base plate 110, so that the welding portion is formed between the beam side wall where the mounting beam 130 is attached to the base plate 110 and the base plate 110; or the mounting beam 130 intersects on the beam side wall of the base plate 110, that is, on the beam side wall intersecting with the beam side wall attached to the base plate 110, and welding is performed on the end where the mounting beam 130 intersects with the beam side wall of the base plate 110 and is close to the base plate 110, so that the welding portion is formed between the beam side wall where the mounting beam 130 intersects with the base plate 110 and the base plate 110.

[0113] In this way, the mounting beam 130 and the base plate 110 are welded to form a welding portion, which can effectively improve the stability of the connection between the mounting beam 130 and the base plate 110. At the same time, the mounting beam 130 can also be connected to the base plate 110 through the second protrusion 1133. The multiple connection methods between the mounting beam 130 and the base plate 110 can effectively improve the connection strength between the mounting beam 130 and the base plate 110.

[0114] According to some embodiments of this application, please refer to Figures 2 to 4 as well as Figure 7 The module beam 120 and the bottom plate 110 are welded to form a welding portion, and the installation beam 130 and the bottom plate 110 are also welded to form a welding portion.

[0115] It can be understood that the first side 111 of the base plate 110 can be welded to the module beam 120, and the second side 112 of the base plate 110 can be welded to the mounting beam 130, so that the module beam 120 and the mounting beam 130 respectively form welding parts with the first side 111 and the second side 112 of the base plate 110, so as to realize the connection between the module beam 120 and the mounting beam 130 and the base plate 110 to form a whole.

[0116] In this way, the module beam is welded to the base plate 110 to form a welding portion, and the mounting beam 130 is welded to the base plate 110 to form a welding portion. The mounting beam 130, the base plate 110 and the module beam 120 can be welded together to form a whole, thereby effectively improving the stability of the connection between the mounting beam 130, the module beam 120 and the base plate 110.

[0117] According to some embodiments of this application, please refer to Figures 2 to 4 as well as Figure 7 In the thickness direction H of the bottom plate 110, the projection of the mounting beam 130 and the projection of the module beam 120 at least partially overlap; the mounting beam 130, the module beam 120 and the bottom plate 110 are at least partially welded to form a welding portion.

[0118] It can be understood that the projection of the mounting beam 130 and the projection of the module beam 120 at least partially overlap, that is, in the thickness direction H of the base plate 110, the mounting beam 130, the base plate 110 and the module beam 120 have an overlapping portion, thereby, a welding portion can be welded to form a welding portion on the overlapping portion of the mounting beam 130, the base plate 110 and the module beam 120 to achieve a fixed connection among the mounting beam 130, the base plate 110 and the module beam 120.

[0119] With such arrangement, the mounting beam 130 and the module beam 120 can have at least a partial overlap in the thickness direction H of the bottom plate 110, so that the mounting beam 130, the module beam 120 and the bottom plate 110 can form a welding portion connecting the three by welding, so as to improve the connection strength between the mounting beam 130, the module beam 120 and the bottom plate 110; when the box body 10 is installed and used by means of the mounting beam 130, the mounting beam 130, the bottom plate 110 and the module beam 120 can form a connected whole, so that the overall structural strength of the box body 10 is effectively improved, thereby being able to meet the purpose of the overall high structural strength requirement of the box body 10.

[0120] According to some embodiments of this application, please refer to Figure 3 , Figure 4 and Figure 7A welding avoidance hole 122 is opened on the beam side wall of the module beam 120 away from the bottom plate 110 , and the welding portion is formed on the beam side wall of the module beam 120 facing the bottom plate 110 and exposed in the welding avoidance hole 122 .

[0121] It can be understood that the welding avoidance hole 122 is used to avoid welding operations; the welding avoidance hole 122 can be a through hole that penetrates the beam side wall of the module beam 120 away from the bottom plate 110, so that the welding device (such as a welding head) can pass through the welding avoidance hole 122 and perform welding operations on the beam side wall of the module beam 120 that is attached to the side of the bottom plate 110, so that the module beam 120 and the bottom plate 110 are welded to form a welding portion, or the bottom plate 110 and the mounting beam 130 can be welded to the beam side wall on the side of the bottom plate 110, so that the mounting beam 130 and the bottom plate 110 are welded to form a welding portion.

[0122] Optionally, the number of the welding avoidance holes 122 may be one or more; the specific number of the welding avoidance holes 122 may be determined according to the number of welded portions to be formed, wherein a welding operation performed through one welding avoidance hole 122 may form one welded portion.

[0123] With such arrangement, the welding avoidance hole 122 can be used to avoid welding operation during assembly, so that the welding device (such as the welding head) can pass through the welding avoidance hole 122 to perform welding operation on the inside of the module beam 120, thereby enabling the module beam 120 and the base plate 110 to be welded to form a welding portion, or the mounting beam 130, the module beam 120 and the base plate 110 can be welded to form a welding portion connecting the three, so that the connection strength between the mounting beam 130, the module beam 120 and the base plate 110 can be strengthened.

[0124] According to some embodiments of this application, please refer to Figure 3 , Figure 4 and Figure 7 A welding avoidance hole 122 is opened on the beam side wall of the mounting beam 130 away from the bottom plate 110 , and the welding portion is formed on the beam side wall of the mounting beam 130 facing the bottom plate 110 and exposed in the welding avoidance hole 122 .

[0125] It can be understood that the welding avoidance hole 122 is used to avoid welding operations; the welding avoidance hole 122 can be a through hole that penetrates the beam side wall of the mounting beam 130 away from the bottom plate 110, so that the welding device (such as a welding head) can pass through the welding avoidance hole 122 and perform welding operations on the beam side wall of the mounting beam 130 that is attached to the side of the bottom plate 110, so that the mounting beam 130 and the bottom plate 110 are welded to form a welding portion, or the bottom plate 110 and the module beam 120 can be welded to the beam side wall on the side of the bottom plate 110, so that the bottom plate 110 and the module beam 120 are welded to form a welding portion.

[0126] Optionally, the number of the welding avoidance holes 122 may be one or more; the specific number of the welding avoidance holes 122 may be determined according to the number of welded portions to be formed, wherein a welding operation performed through one welding avoidance hole 122 may form one welded portion.

[0127] With such arrangement, the welding avoidance hole 122 can be used to avoid welding operation during assembly, so that the welding device (such as a welding head) can pass through the welding avoidance hole 122 to perform welding operation on the inside of the mounting beam 130, thereby enabling the mounting beam 130 and the base plate 110 to be welded to form a welding portion, or the mounting beam 130, the module beam 120 and the base plate 110 can be welded to form a welding portion connecting the three, so that the connection strength between the mounting beam 130, the module beam 120 and the base plate 110 can be strengthened.

[0128] According to some embodiments of this application, please refer to Figure 3 , Figure 4 and Figure 7 A welding avoidance hole 122 is opened on the beam side wall of the module beam 120 away from the bottom plate 110, and the welding portion is formed on the beam side wall of the module beam 120 facing the bottom plate 110 and exposed in the welding avoidance hole 122; at the same time, a welding avoidance hole 122 is also opened on the beam side wall of the installation beam 130 away from the bottom plate 110, and the welding portion is formed on the beam side wall of the installation beam 130 facing the bottom plate 110 and exposed in the welding avoidance hole 122.

[0129] It can be understood that welding avoidance holes 122 are provided on both the module beam 120 and the installation beam 130, and welding operations are performed through the welding avoidance holes 122 provided on one side of the module beam 120 and the other side of the welding beam 130, respectively, so that the module beam 120 and the bottom plate 110 are welded to form a welding portion, and the installation beam 130 and the bottom plate 110 are welded to form a welding portion; thus, the bottom plate 110, the module beam 120 and the installation beam 130 are all welded to form a whole, which can effectively improve the connection strength among the bottom plate 110, the module beam 120 and the installation beam 130, and thus can improve the structural strength of the box body 10.

[0130] According to some embodiments of this application, please refer to Figures 2 to 4 as well as Figure 7 and Figure 8 The reinforcement structure 113 includes a second protrusion 1133 formed on the second side surface 112 , and the second protrusion 1133 is configured to be connected to the mounting beam 130 .

[0131] Among them, the second protrusion 1133 is formed on the second side surface 112. Optionally, the second protrusion 1133 can be formed by the base plate 110 protruding toward the second side surface 112; or, the second protrusion 1133 can be formed by an external component fixed to the base plate 110 by welding, bonding, screwing, etc.

[0132] The second protrusion 1133 may be, but is not limited to, a columnar structure, an arc-shaped structure, a hemispherical structure, a block structure, etc.; the number of the second protrusions 1133 may be one or more. When the number of the second protrusions 1133 is multiple, the multiple second protrusions 1133 may be arranged on the second side surface 112 along the length direction of the mounting beam 130 (perpendicular to the thickness direction H), or the multiple second protrusions 1133 may be distributed in an array on the second side surface 112.

[0133] The second protrusion 1133 is connected to the mounting beam 130. Optionally, the second protrusion 1133 can be connected to the mounting beam 130 by bonding, welding or screwing; or, the second protrusion 1133 can be inserted into the mounting beam 130 and then connected to the mounting beam 130 by bonding, welding or screwing.

[0134] In this way, by forming a second protrusion 1133 on the second side surface 112 of the base plate 110, and connecting the mounting beam 130 using the second protrusion 1133, the connection strength between the mounting beam 130 and the base plate 110 is improved. When the box body 10 is connected for use, the risk of deformation or breakage between the base plate 110 and the mounting beam 130 can be effectively reduced. Therefore, when the box body 10 of the battery 100 is assembled and used through the mounting beam 130, the mounting beam 130 can withstand a box body 10 with a larger weight.

[0135] According to some embodiments of this application, please refer to Figure 3 , Figure 4 as well as Figures 7 to 9 A second cavity 1134 is formed on a side of the second protrusion 1133 away from the mounting beam 130 .

[0136] It is understandable that the second protrusion 1133 can be a structure protruding from the second side surface 112 formed by the bottom plate 110 being recessed toward the second side surface 112 , so that the second cavity 1134 is formed on the side of the second protrusion 1133 away from the mounting beam 130 .

[0137] With such arrangement, the processing step of the second protrusion 1133 of the bottom plate 110 can be carried out together with the processing step of manufacturing the bottom plate 110, thereby being able to effectively reduce the manufacturing steps of the box body 10 to improve the manufacturing efficiency of the box body 10; at the same time, the second protrusion 1133 with the second cavity 1134 on the back formed by the depression of the bottom plate 110 itself can, compared with the method of adding an external structure to set the second protrusion 1133, not increase the weight of the box body 10, thereby being able to improve the force applied by the box body 10 to the mounting beam 130 when assembled through the mounting beam 130, thereby reducing the probability of damage to the mounting beam 130.

[0138] Optionally, a protrusion may be added to the module beam 120 so that when the module beam 120 is assembled on the first side surface 111, the protrusion can be inserted into the second cavity 1134; thus, when the mounting beam 130 and the second protrusion 1133 are welded, the protrusion, the mounting beam 130, and the second protrusion 1133 can be welded together to form a whole, so as to improve the connection strength between the module beam 120, the bottom plate 110, and the mounting beam 130. The module beam 120 may be added with a protrusion by welding an external block on the side wall of the module beam 120 facing the bottom plate, or by screwing a block on the side wall of the module beam 120 facing the bottom plate.

[0139] According to some embodiments of this application, please refer to Figure 3 , Figure 4 , Figure 7 and Figure 8 There are multiple second protrusions 1133 , and the multiple second protrusions 1133 are arranged on the second side surface 112 at intervals.

[0140] The second protrusions 1133 may be arranged at intervals along any direction on the second side surface 112. For example, in some specific embodiments, the plurality of second protrusions 1133 may be arranged at intervals along the length direction of the mounting beam 130. When the mounting beam 130 is arranged on the second side surface 112, the plurality of second protrusions 1133 may be distributed along the length direction of the mounting beam 130 and respectively connected to the mounting beam 130, thereby achieving a reinforced connection between the mounting beam 130 and the second side surface 112, and effectively improving the connection strength between the mounting beam 130 and the bottom plate 110.

[0141] In this way, by forming a plurality of second protrusions 1133 on the second side surface 112 of the base plate 110 and utilizing the plurality of second protrusions 1133 to connect the mounting beam 130, it is possible to increase the number of connection points between the mounting beam 130 and the second side surface 112 of the base plate 110, and the connection strength between the mounting beam 130 and the base plate 110 is effectively improved, thereby effectively reducing the risk of deformation or fracture between the base plate 110 and the mounting beam 130.

[0142] According to some embodiments of this application, please refer to Figure 3 , Figure 4 , Figure 7 and Figure 8 A gap is formed between the side wall of the mounting beam 130 which is away from the bottom plate 110 and the bottom plate 110 , and the second protrusion 1133 is connected to the side wall of the module beam 120 which is away from the bottom plate 110 .

[0143] It can be understood that the mounting beam 130 can be a beam structure such as a circular beam (i.e., the cross section of the module beam 120 is rectangular), a Ji-shaped beam (i.e., the cross section of the module beam 120 is approximately Ji-shaped), etc. In some implementations of this embodiment, the mounting beam 130 can be a Ji-shaped beam, that is, the mounting beam 130 includes a first beam side wall, a second beam side wall formed by bending in the same direction at opposite ends of the first beam side wall, and a third beam side wall at both ends of the second beam side wall respectively bent at one end away from the first beam side wall and away from the first beam side wall; when the mounting beam 130 is fixedly assembled on the second side surface 112 of the bottom plate 110, the two third beam side walls of the mounting beam 130 are respectively in contact with the second side surface 112, and the first beam side wall is the beam side wall away from the bottom plate 110, and the above-mentioned gap is formed between the first beam side wall and the bottom plate 110.

[0144] When the mounting beam 130 is assembled on the second side surface 112 of the base plate 110, the second protrusion 1133 on the second side surface 112 can be accommodated inside the mounting beam 130, so that the second protrusion 1133 can be connected to the inner side surface of the mounting beam 130. For example, the second protrusion 1133 can be connected to the first beam side wall and / or the second beam side wall of the mounting beam 130; in some specific implementations of the present embodiment, the second protrusion 1133 can be connected to the first beam side wall of the mounting beam 130 (that is, the beam side wall of the mounting beam 130 facing away from the base plate 110); wherein, the second protrusion 1133 can be connected to the mounting beam 130 by bonding, welding, screwing, etc.

[0145] It can be understood that the third beam side wall of the mounting beam 130 is in contact with the second side surface 112 of the base plate 110 , and the third beam side wall can be reinforced and connected to the base plate 110 by bonding or welding to further improve the connection strength between the mounting beam 130 and the base plate 110 .

[0146] In this way, the second protrusion 1133 can be located in the gap between the side wall of the mounting beam 130 facing away from the bottom plate 110 and the bottom plate 110 and connected to the side wall of the mounting beam 130 facing away from the bottom plate 110, thereby achieving the purpose of structural reinforcement of the bottom plate 110 through the second protrusion 1133 and the mounting beam 130.

[0147] According to some embodiments of this application, please refer to Figure 3 , Figure 4 , Figure 7 and Figure 8 An adhesive layer is also provided between the module beam 120 and the bottom plate 110 , and the module beam 120 is fixed to the bottom plate 110 through the adhesive layer.

[0148] It is understandable that an adhesive layer may be provided on at least one of the bottom plate 110 and the module beam 120. When the module beam 120 is assembled on the bottom plate 110, the module beam 120 is connected to the bottom plate 110 via the first protrusion 1131, and the module beam 120 and the bottom plate 110 can be further connected by the adhesive layer. The adhesive layer may use an adhesive such as spot welding glue.

[0149] In this way, on the basis of the module beam 120 and the bottom plate 110 being connected by the first protrusion 1131 or fixed by welding, the module beam 120 and the bottom plate 110 are bonded by the adhesive layer, thereby improving the stability of the connection between the module beam 120 and the bottom plate 110, and then improving the connection strength between the module beam 120 and the bottom plate 110, so as to achieve the purpose of meeting the high structural strength requirements of the box body 10.

[0150] According to some embodiments of this application, please refer to Figure 3 , Figure 4 , Figure 7 and Figure 8 An adhesive layer is also provided between the mounting beam 130 and the bottom plate 110 , and the mounting beam 130 is fixed to the bottom plate 110 through the adhesive layer.

[0151] It is understandable that an adhesive layer may be provided on at least one of the bottom plate 110 and the mounting beam 130. When the mounting beam 130 is mounted on the bottom plate 110, the mounting beam 130 is connected to the bottom plate 110 via the second protrusion 1133, and the mounting beam 130 and the bottom plate 110 can be further connected by the adhesive layer. The adhesive layer may be made of an adhesive such as a spot welding adhesive.

[0152] In this way, on the basis of the mounting beam 130 and the bottom plate 110 being connected by the second protrusion 1133 or fixed by welding, the mounting beam 130 and the bottom plate 110 are bonded by the adhesive layer, thereby improving the stability of the connection between the mounting beam 130 and the bottom plate 110, and further improving the connection strength between the mounting beam 130 and the bottom plate 110, so as to achieve the purpose of meeting the high structural strength requirements of the box body 10.

[0153] According to some embodiments of this application, please refer to Figure 3 , Figure 4 , Figure 7 and Figure 8An adhesive layer is provided between the module beam 120 and the bottom plate 110, and the module beam 120 is fixed to the bottom plate 110 through the adhesive layer; at the same time, an adhesive layer is provided between the mounting beam 130 and the bottom plate 110, and the mounting beam 130 is fixed to the bottom plate 110 through the adhesive layer.

[0154] With such a configuration, the module beam 120 and the mounting beam 130 can simultaneously utilize the adhesive layer to strengthen the connection strength with the bottom plate 110 , thereby effectively improving the connection strength among the bottom plate 110 , the module beam 120 and the mounting beam 130 .

[0155] According to some embodiments of this application, please refer to Figure 3 and Figure 7 The bottom plate 110 is provided with a flow channel, and a heat exchange medium is contained in the flow channel to perform heat exchange with the battery module 20 .

[0156] The flow channel is used for the heat exchange medium to flow, so that the heat exchange medium and the battery module 20 can exchange heat to achieve the purpose of cooling the battery module 20. Optionally, the heat exchange medium can be a liquid medium, such as cooling water, cooling oil, etc.

[0157] Optionally, the flow channel can be formed by a blowing process, that is, the bottom plate 110 can be a blowing cold plate formed by the blowing process. According to the process of the blowing cold plate, the weight of the blowing cold plate is small, so using the blowing cold plate as the bottom plate 110 can reduce the overall weight of the box 10.

[0158] It is understandable that the bottom plate 110 may also be a brazed cold plate formed by a stamping process.

[0159] For example, in some specific embodiments, the box body 10 may include a bottom plate 110, a module beam 120 and a mounting beam 130. The bottom plate 110 may be a blown cold plate formed by a blown process. The bottom plate 110 may be recessed toward the first side surface 111 to form a first protrusion 1131. The module beam 120 is an extruded aluminum structure, preferably a 6-series aluminum structure. A through hole is provided on the side wall of the module beam 120 facing the bottom plate 110, and a welding avoidance hole 122 is provided on the side wall of the module beam 120 facing away from the bottom plate 110. The module beam 120 is assembled on the first side surface 111 of the bottom plate 110. 11, the first protrusion 1131 can pass through the through hole and abut against the beam side wall of the module beam 120 facing away from the bottom plate 110, and the first protrusion 1131 and the beam side wall of the module beam 120 facing away from the bottom plate 110 can be welded into one piece by a spot welding process, and the beam side wall of the module beam 120 facing the bottom plate 110 and the bottom plate 110 are spot welded together through the welding avoidance hole 122. At the same time, the module beam 120 and the first side surface 111 are reinforced by the spot welding glue, which effectively improves the connection strength between the module beam 120 and the bottom plate 110. At the same time, the mounting beam 130 is assembled on the second side surface 112 of the base plate 110. The mounting beam 130 and the base plate 110 can also be welded together by spot welding, or the mounting beam 130, the base plate 110 and the module beam 120 can be welded together by spot welding, and then the spot welding glue is used to bond the fitting part of the mounting beam 130 and the second side surface 112 to achieve a reinforced connection between the mounting beam 130 and the base plate 110.

[0160] According to some embodiments of this application, please refer to Figure 2 In the second aspect, the embodiment of the present application further provides a battery 100, including a battery module 20 and the box body 10 as described above, wherein the battery module 20 is contained in the box body 10 and mounted on the module beam 120. The battery 100 provided in the embodiment of the present application includes the box body 10 described above, and on the basis that the box body 10 described above has a high structural strength, the battery 100 also has a high structural strength, and the risk of deformation and breakage of the box body 10 when the battery 100 is connected for use is low.

[0161] According to some embodiments of this application, please refer to Figure 1 In a third aspect, the present application also provides an electric device, including the battery 100 as described above, and the battery 100 is used to provide electric energy. The electric device can be any electric device introduced in the above embodiment, such as a vehicle 1000, which will not be described in detail here.

[0162] The electrical equipment provided in the embodiment of the present application includes the above-mentioned battery 100. On the basis that the battery 100 has a high structural strength, the battery 100 can provide electrical energy to the electrical equipment more stably.

[0163] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A box for accommodating a battery module, characterized in that: include: A bottom plate, the bottom plate having a first side surface and a second side surface opposite to each other in a thickness direction, and a reinforcement structure is arranged on the bottom plate; A module beam, used for mounting the battery module, wherein the module beam is disposed on the first side surface; as well as A mounting beam, used for mounting the box, wherein the mounting beam is disposed on the second side surface; Wherein, the reinforcement structure is used to be connected to the mounting beam and / or the module beam.

2. The box according to claim 1, characterized in that: The reinforcement structure includes a first protrusion formed on the first side surface, and the first protrusion is configured to be connected to the module beam.

3. The box according to claim 2, characterized in that: A first cavity is formed on a side of the first protrusion away from the module beam.

4. The box according to claim 2 or 3, characterized in that: There are multiple first protrusions, and the multiple first protrusions are arranged on the first side surface at intervals.

5. The box according to any one of claims 2 to 4, characterized in that: An escape portion is provided on the beam side wall of the module beam facing the bottom plate, and the first protrusion is configured to be inserted into the escape portion.

6. The box according to claim 5, characterized in that: The avoidance portion is a through hole penetrating through the module beam and facing the beam side wall of the bottom plate.

7. The box according to claim 5 or 6, characterized in that: The first protrusion is connected to a beam side wall of the module beam that is away from the bottom plate.

8. The box according to any one of claims 1 to 7, characterized in that: The module beam is welded to the bottom plate to form a welding portion, and / or the mounting beam is welded to the bottom plate to form a welding portion.

9. The box according to claim 8, characterized in that: In the thickness direction of the bottom plate, the projection of the mounting beam and the projection of the module beam at least partially overlap; the mounting beam, the module beam and the bottom plate are at least partially welded to form the welding portion.

10. The box according to claim 8 or 9, characterized in that: A welding avoidance hole is provided on the beam side wall of the module beam away from the bottom plate, and the welding portion is formed on the beam side wall of the module beam facing the bottom plate and exposed outside the welding avoidance hole; and / or, A welding avoidance hole is provided on the beam side wall of the mounting beam away from the bottom plate, and the welding portion is formed on the beam side wall of the mounting beam facing the bottom plate and exposed from the welding avoidance hole.

11. The box according to any one of claims 1 to 10, characterized in that: The reinforcement structure includes a second protrusion formed on the second side surface, the second protrusion being configured to be connected to the mounting beam.

12. The box according to claim 11, characterized in that: A second cavity is formed on a side of the second protrusion facing away from the mounting beam.

13. The box according to claim 11 or 12, characterized in that: There are multiple second protrusions, and the multiple second protrusions are arranged on the first side surface at intervals.

14. The box according to any one of claims 11 to 13, characterized in that: A gap is formed between the side wall of the mounting beam that is away from the bottom plate and the bottom plate, and the second protrusion is connected to the side wall of the module beam that is away from the bottom plate.

15. The box according to any one of claims 1 to 14, characterized in that: An adhesive layer is further provided between the module beam and the bottom plate, and the module beam is fixed to the bottom plate through the adhesive layer; and / or An adhesive layer is also provided between the mounting beam and the bottom plate, and the mounting beam is fixed to the bottom plate through the adhesive layer.

16. The box according to any one of claims 1 to 15, characterized in that: The bottom plate is provided with a flow channel, and a heat exchange medium is contained in the flow channel to perform heat exchange with the battery module.

17. A battery, characterized in that: It comprises a battery module and a box body as claimed in any one of claims 1 to 16, wherein the battery module is accommodated in the box body and mounted on the module beam.

18. An electrical equipment, characterized in that: Comprising a battery as claimed in claim 17, the battery is used to provide electrical energy.

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