Beam structure, battery and electric device

Abstract

The invention provides a beam structure, a battery and an electric device. The beam structure comprises a beam body, the beam body is formed by a plate, the beam body comprises a mounting part and a non-mounting part, the mounting part is provided with a mounting structure and used for mounting loads, and the thickness of the plate of the mounting part is smaller than that of the plate of the non-mounting part. According to the beam structure provided by the invention, different plate thickness configurations are performed according to the material requirements of different areas on the beam main body, so that the actual plate thickness of different areas tends to be consistent with the required plate thickness, raw material waste and cost increase caused by the fact that the actual plate thickness is greater than the required plate thickness are avoided, and the manufacturing cost of the beam structure is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of electric equipment, and more specifically, to a beam structure, a battery and an electric device. Background Art

[0002] In electric equipment, the battery is installed in a box, and the box is mounted on the main body of the electric equipment through a frame assembly. The battery provides a power source for the operation of the main body of the equipment. When the electric equipment is hit by a collision, the frame assembly has the risk of absorbing the collision force and causing deformation.

[0003] The prior art has unreasonable design of the plate thickness of the frame assembly, which results in the local plate thickness of the frame assembly exceeding the requirement, increasing the amount of raw materials used and increasing the manufacturing cost of the frame assembly. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a beam structure, a battery and an electrical device to solve the technical problem of high cost of existing frame components for mounting batteries.

[0005] To achieve the above purpose, the technical solution adopted in this application is:

[0006] A beam structure is provided, which includes a beam body, the beam body is formed by a plate, the beam body includes a mounting part and a non-mounting part, the mounting part is equipped with a mounting structure for mounting a load, wherein the thickness of the plate of the mounting part is less than the thickness of the plate of the non-mounting part.

[0007] In the beam structure provided by the above scheme, the plate thickness of the mounting part is smaller than that of the non-mounting part. The plate thickness of the non-mounting part is large, the amount of raw materials used is large, and the required anti-deformation ability is provided. The plate thickness of the mounting part is relatively small, the amount of raw materials used is relatively small, and the required anti-deformation ability is provided by means of the mounting structure.

[0008] The beam structure provided by the above scheme configures different plate thicknesses according to the material requirements of different areas on the beam body, so that the actual plate thickness in different areas tends to be consistent with the required plate thickness, avoiding the actual plate thickness being greater than the required plate thickness, resulting in waste of raw materials and increased costs, and reducing the manufacturing cost of the beam structure.

[0009] In some embodiments, the beam body includes a plurality of the mounting portions and a plurality of the non-mounting portions, and the non-mounting portions are arranged between adjacent mounting portions.

[0010] A non-mounting part is arranged between adjacent mounting parts, and an area with a large plate thickness is arranged between two adjacent areas with small plate thickness. Areas with different plate thicknesses are arranged alternately to meet the requirements of spacing configuration of the mounting structure. The beam body has a more uniform and balanced deformation resistance, thereby improving the overall deformation resistance of the beam structure.

[0011] In some embodiments, the beam body further includes a transition portion, wherein the transition portion is located between the mounting portion and the non-mounting portion; and the thickness of the plate of the transition portion gradually decreases in a direction from the non-mounting portion to the mounting portion.

[0012] From the non-mounting part to the mounting part, the plate thickness of the transition part gradually decreases. The plate thickness near the non-mounting part is larger and closer to the plate thickness of the non-mounting part, and the plate thickness near the mounting part is smaller and closer to the plate thickness of the mounting part. The transition part provides a gradual trend for the plate thickness difference between the mounting part and the non-mounting part, ensuring a stable transition of the plate thickness between the mounting part and the non-mounting part, and providing a more stable anti-deformation ability for the beam structure.

[0013] In some embodiments, the beam body includes a plurality of the mounting portions that are spaced apart from each other, and the non-mounting portion and the transition portion are disposed between adjacent mounting portions.

[0014] A transition portion is arranged between the mounting portion and the non-mounting portion, a non-mounting portion is arranged between adjacent transition portions, a mounting portion is arranged between adjacent transition portions, areas with different plate thicknesses are arranged alternately, and the transition portions are arranged at intervals to provide for transition between adjacent mounting portions and non-mounting portions. The beam body has a more uniform and balanced anti-deformation capacity, thereby improving the overall anti-deformation capacity of the beam structure.

[0015] In some embodiments, the beam body is formed into a closed profile by rolling and welding the metal sheet. By rolling and welding the metal sheet, the beam body has a closed profile, and the structure of the beam body is more stable and has better deformation resistance.

[0016] In some embodiments, the mounting portion is provided with a mounting hole for mounting the mounting structure, and the mounting portion is an area whose distance from the mounting hole is less than or equal to a predetermined distance along the extension direction of the beam body. The mounting portion is an area whose distance from the mounting hole is less than or equal to a predetermined distance along the extension direction of the beam, and the predetermined distance defines a predetermined range of the mounting portion, so as to facilitate thinning of the thickness within the predetermined range on the metal plate.

[0017] In some embodiments, the beam body includes a first beam and a second beam, the first beam is connected to the second beam, and the mounting hole is provided on the first beam. The beam body is distinguished into the first beam and the second beam, and the mounting hole is optionally provided on the first beam to meet the need to carry the mounting load through the mounting structure.

[0018] In some embodiments, the first beam and the second beam are formed by integrally rolling and welding metal plates. The first beam and the second beam are integrally connected by integrally rolling metal plates, and the structure of the beam body is more stable and has better deformation resistance.

[0019] In some embodiments, the first beam and the second beam form a stepped structure, a portion of the first beam constitutes a higher step surface on the stepped structure, a portion of the second beam constitutes a lower step surface on the stepped structure, and the mounting hole is arranged on the higher step surface.

[0020] The step structure provides a convenient and stable positioning function for the mounted load to be mounted on the beam structure, which is used to provide the accuracy of the mounted load to the beam structure and provide the matching stability after mounting. The step structure provides a fastening function for the mounted load, which can avoid the use of other components to mount the mounted load on the beam structure.

[0021] In some embodiments, the first beam is formed into an envelope contour by rolling a portion of the metal sheet, and the joints of the envelope contour are welded to form a closed contour; the second beam is formed into a bent contour by rolling another portion of the metal sheet, and the end of the bent contour is joined to the envelope contour, and the joints of the end and the envelope contour are welded to form a closed contour.

[0022] The first beam is formed into an envelope profile by rolling a portion of the metal sheet, and the joint is welded to form a closed profile. The first beam has better structural stability and better deformation resistance. The second beam is formed into a bent profile by rolling another portion of the metal sheet, and the joint between the end and the envelope profile is welded to form a closed profile. The second beam has better structural stability and better deformation resistance.

[0023] In some embodiments, the beam structure includes two beam bodies, namely a first beam body and a second beam body; the first beam body and the second beam body are arranged in parallel and spaced apart, and the two first beams are arranged on the inner sides of the two second beams.

[0024] The freedom of the mounted load in opposite directions is limited by two beam bodies arranged in parallel and at intervals. The two beam bodies arranged in parallel and at intervals can be arranged on opposite sides with high collision frequency to assist in absorbing collision force through the mounting structure.

[0025] In some embodiments, the beam structure also includes a third beam body, the third beam body is made of a metal plate, the thickness of the metal plate of the third beam body is uniform, and both ends of the third beam body are respectively connected to the ends on the same side of the first beam body and the second beam body.

[0026] The third beam body limits the specific position of the mounting load on the first beam body and the second beam body, so that the mounting load can be stably mounted on the beam structure.

[0027] In some embodiments, the third beam body is formed into a closed profile by rolling and welding the metal sheet. By rolling and welding the metal sheet, the third beam body has a closed profile, and the structure of the third beam body is more stable and has better deformation resistance.

[0028] Another object of the present application is to provide a battery, comprising a box body and a battery cell accommodated in the box body, and the beam structure as described above, wherein the box body is connected to the beam structure.

[0029] In the battery provided by the above scheme, the box body in the battery is connected to the beam structure, and the battery can be connected to the electrical device through the mounting structure installed on the beam structure. The mounting structure is installed on the mounting part, and the plate thickness of the mounting part is less than the plate thickness of the non-mounting part. The plate thickness of the mounting part is large, the amount of raw materials used is large, and it has the required anti-deformation ability. The plate thickness of the non-mounting part is relatively small, and the amount of raw materials used is relatively small. With the help of the mounting structure, the required anti-deformation ability is provided.

[0030] The battery provided by the above scheme is configured with different plate thicknesses according to the material requirements of different areas on the beam structure, so that the actual plate thickness in different areas tends to be consistent with the required plate thickness, avoiding the waste of raw materials and increased costs caused by the actual plate thickness being greater than the required plate thickness, and reducing the manufacturing cost of the beam structure and the battery.

[0031] Another object of the present application is to provide a battery, comprising a box body and a battery cell accommodated in the box body, and the beam structure as described above.

[0032] The first beam and the second beam of the beam structure form a stepped structure, a portion of the first beam constitutes a higher step surface on the stepped structure, a portion of the second beam constitutes a lower step surface on the stepped structure, and the mounting hole is arranged on the higher step surface.

[0033] The box body is connected with the higher step surface in a matching manner, the lower step surface is located inside the box body, and the battery cell is connected with the lower step surface in a matching manner.

[0034] The battery provided by the above scheme has a box body that is connected to the higher step surface of the step structure, and a battery cell that is connected to the lower step surface of the step structure. The box body and the battery cell are connected to the different steps respectively to carry the load of the box body and the battery cell respectively. The step structure provides a convenient and stable positioning effect for the battery cell to be connected to the beam structure, which is used to provide accuracy in connecting the battery to the beam structure and stability after the battery is mounted on the electrical equipment. The step structure provides a fastening effect for the battery cell, eliminating the need to use other components to connect the battery cell to the lower step surface.

[0035] Another object of the present application is to provide an electrical device, wherein the electrical device comprises the battery as described above, and the battery is mounted on the electrical device via the mounting structure.

[0036] The beneficial effects of the electrical device provided in the present application compared to the prior art are consistent with the beneficial effects of the beam structure provided in the present application and the battery provided in the present application compared to the prior art, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] 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 the description of the prior art 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 any creative labor.

[0038] Figure 1 A schematic diagram of a beam structure from a first viewing angle provided in an embodiment of the present application;

[0039] Figure 2 for Figure 1 A magnified view of part A;

[0040] Figure 3 for Figure 1 A schematic diagram of a beam structure provided with a mounting structure from a first perspective;

[0041] Figure 4 for Figure 3 A magnified view of part B;

[0042] Figure 5 for Figure 1 A schematic diagram of a second perspective of the beam structure provided with the mounting structure;

[0043] Figure 6 for Figure 5 Enlarged view of part C;

[0044] Figure 7 For Figure 1 A schematic diagram of a section taken from the provided beam structure;

[0045] Figure 8 for Figure 7 Sectional view in the AA direction;

[0046] Fig. 9 for Figure 7 Cross-sectional view in the BB direction;

[0047] Fig.10 for Figure 7 Cross-sectional view in CC direction;

[0048] Fig.11 A schematic diagram of a battery provided in an embodiment of the present application;

[0049] Fig.12 for Fig.11 A magnified view of part D in the middle;

[0050] Fig.13 for Fig.11 Enlarged view of part E in the middle;

[0051] Fig.14 A schematic diagram of an electrical device provided in an embodiment of the present application;

[0052] Fig.15 for Fig.14 Enlarged view of part F.

[0053] Among them, the reference numerals in the figure are:

[0054] 10. beam structure; 20. mounting structure; 100. battery; 1000. electrical device;

[0055] 11, beam body; 11a, mounting part; 11b, non-mounting part; 11c, transition part;

[0056] 111, first beam body; 112, second beam body; 113, third beam body; 1131, first beam portion; 1132, second beam portion;

[0057] 1101, first beam; 1102, second beam; 1103, mounting hole; 1104, step structure; 1105, connection hole;

[0058] 1101a, first joint edge; 1101b, first envelope edge; 1101c, second envelope edge; 1101d, third envelope edge; 1101e, fourth envelope edge;

[0059] 1102a, second joint edge; 1102b, first edge; 1102c, second edge; 1102d, third edge;

[0060] 113a, first connection hole; 113b, second connection hole;

[0061] 101, box body; 102, pressing sheet; 103, gasket; 104, sealing sheet; 105, water cooling element; 101a, edge sheet; 105a, liquid pipe;

[0062] 1001. Equipment body. DETAILED DESCRIPTION

[0063] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0064] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0065] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0066] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of 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.

[0067] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0068] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0069] The term "plurality" used in the present application refers to two or more (including two).

[0070] As the power source of electric vehicles, power batteries have high safety requirements. During the use of batteries, due to the impact of collision conditions, the batteries are easily squeezed, resulting in safety hazards.

[0071] In order to solve the above hidden dangers, the existing technology adopts a frame assembly installed on the outside of the battery. The battery is installed on the vehicle through the frame assembly. When affected by collision conditions, the frame assembly plays the role of energy absorption and collision prevention, providing protection for the battery.

[0072] The frame assembly includes a locking part that has a locking relationship with the vehicle body, and a non-locking part that has no locking relationship with the vehicle body. The locking part is connected to the vehicle body by a locking accessory, and the locking accessory and the locking part can receive the collision force, and the locking part is not easy to deform. The non-locking part receives the collision force through its own structure, and is prone to structural deformation.

[0073] In order to solve the problem of structural deformation in non-locking parts, the thickness of the frame assembly is increased during the manufacturing process of the box, that is, the thickness of the non-locking parts and the locking parts is increased, and the deformation resistance of the non-locking parts is improved by increasing the amount of raw materials. However, the actual amount of material used in the locking parts exceeds the required amount, the cost of raw materials increases, and the manufacturing cost of the frame assembly increases.

[0074] Based on the above considerations, in order to solve the problem that the actual material consumption at the locking part exceeds the required consumption, a beam structure is designed. The beam structure is formed by a plate. The beam structure includes a mounting part and a non-mounting part. The mounting part is equipped with a mounting structure for mounting the load. The thickness of the plate of the mounting part is smaller than the thickness of the plate of the non-mounting part.

[0075] The plate thickness of the mounting part is less than that of the non-mounting part. The plate thickness of the non-mounting part is large, the amount of raw materials used is large, and it has the required anti-deformation ability. The plate thickness of the mounting part is relatively small, and the amount of raw materials used is relatively small. With the help of the mounting structure, the required anti-deformation ability is provided. The embodiment of the present application configures different plate thicknesses according to the material requirements of different areas on the beam structure, so that the actual plate thickness of different areas tends to be consistent with the required plate thickness, avoiding the actual plate thickness being greater than the required plate thickness, resulting in waste of raw materials and increased costs, and reducing the manufacturing cost of the beam structure.

[0076] The beam structure provided in the embodiment of the present application can be used in, but not limited to, electrical devices such as vehicles, ships or aircraft. Batteries with the beam structure provided in the embodiment of the present application can be used to form a power supply system for electrical devices, which is beneficial to improving the protection of the battery, effectively reducing the potential safety hazards of the battery during use, and at the same time helping to reduce material costs.

[0077] The battery mentioned in the embodiments of the present application refers to a physical module including one or more battery cells, which is used to provide voltage and capacitance. For example, it may include a battery cell, a battery module or a battery pack. Generally, a battery includes a single cell and a box for accommodating the single cell. The box is used to accommodate and encapsulate one or more battery cells or battery modules. The box is used to protect the battery cells and prevent liquids or other foreign matter from affecting the charging or discharging of the battery cells.

[0078] The battery cell may include a lithium-ion secondary battery, a lithium-ion primary battery, a lithium-sulfur battery, a sodium-lithium-ion battery, a sodium-ion battery or a magnesium-ion battery, etc., which is not limited in the embodiments of the present application. The battery cell may be cylindrical, flat, rectangular or other shapes, etc., which is not limited in the embodiments of the present application. The battery cell is divided into three types according to the packaging method: cylindrical battery cells, square battery cells and soft-pack battery cells, which is not limited in the embodiments of the present application.

[0079] A battery cell refers to the smallest unit that makes up a battery. In a battery, there can be multiple battery cells, and multiple battery cells can be connected in series, in parallel, or in a mixed connection. A mixed connection means that multiple battery cells are connected in series and in parallel. Multiple battery cells can be directly connected in series, in parallel, or in a mixed connection, and then the whole composed of multiple battery cells is placed in a box. Of course, the battery can also be a battery module formed by connecting multiple battery cells in series, in parallel, or in a mixed connection, and then multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and placed in a box.

[0080] The box body provides a storage space for the battery cells, and the box body can adopt a variety of structures. In some embodiments, the box body includes a first part and a second part, the first part and the second part cover each other, and the first part and the second part jointly define a storage space for accommodating the battery cells. Among them, the second part can be a shell structure with an opening on one side, the first part can be a plate-like structure, the first part covers the open side of the second part, and the first part and the second part jointly define a storage space. The first part and the second part can also be shell structures that are both open on one side, and the open side of the first part covers the open side of the second part. Of course, the box body formed by the first part and the second part can be in a variety of shapes, such as a cylinder, a cuboid, etc.

[0081] The electric device provided in the embodiment of the present application may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0082] Among them, the vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery is arranged inside the vehicle, and the battery can be arranged at the bottom, head or tail of the vehicle. The battery can be used to power the vehicle, for example, the battery can be used as an operating power source for the vehicle. The vehicle may also include a controller and a motor, and the controller is used to control the battery to power the motor, for example, for the starting, navigation and working power requirements of the vehicle during driving. In some embodiments, the battery can be used not only as the operating power source of the vehicle, but also as the driving power source of the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0083] Reference Figures 1 to 15 As shown, the beam structure 10, the battery 100 and the electrical device 1000 provided in the embodiment of the present application are now described.

[0084] Reference Figures 1 to 4 As shown, the beam structure 10 provided in the embodiment of the present application includes a beam body 11, which is formed by a plate. The beam body 11 includes a mounting portion 11a and a non-mounting portion 11b, and the mounting portion 11a is equipped with a mounting structure 20 for mounting a load. The thickness of the plate of the mounting portion 11a is less than the thickness of the plate of the non-mounting portion 11b.

[0085] The beam structure 10 refers to a structure including one beam body 11 or a structure formed by connecting two or more beam bodies 11. There are many ways to connect the beam structure 10, such as two beam bodies 11 arranged in parallel, arranged in parallel and spaced apart, or arranged orthogonally, or three beam bodies 11 connected to form a U-shaped or H-shaped beam structure 10, or four beam bodies 11 connected to form a U-shaped or cross-shaped beam structure 10.

[0086] The beam body 11 is a slender structure with a certain extension length and a large length-to-width ratio. Figure 3 One of the beam bodies 11 of the provided beam structure 10 has a relatively large length dimension a and a relatively small width dimension b, and the beam body 11 as a whole is a slender structure with a relatively large length-to-width ratio. The beam body 11 is formed by a plate member, which is a slender flat structure, and the plate member has different plate thickness regions. The plate member is rolled and then welded to form the beam body 11, and the obtained beam body 11 has different plate thickness regions, forming a mounting portion 11a and a non-mounting portion 11b.

[0087] A plate refers to a flat material plate having a certain thickness and a certain extension area. For example, the plate may be a metal plate, which refers to a flat metal material plate formed by forging, rolling or casting. In the embodiment of the present application, the plate may be a flat metal material plate, specifically a slender rectangular plate with a large length-to-width ratio, and different regions of the metal plate may be processed by a rolling process or other processes to form different plate thickness regions.

[0088] The mounting portion 11a refers to the area where the mounting structure 20 is installed, and the mounting load is mounted on the mounting portion 11a through the mounting structure 20. The non-mounting portion 11b refers to the area where the mounting structure 20 is not installed, and the non-mounting portion 11b mainly relies on its own structure and material usage to provide deformation resistance.

[0089] It should be noted that the non-mounting portion 11b refers to an area where the mounting structure 20 is not installed, which does not mean that the non-mounting portion 11b does not have any structure or component installed. The non-mounting portion 11b can be installed with other structures or components, and the other structures or components are different from the mounting structure 20 installed on the mounting portion 11a. The non-mounting portion 11b basically relies on its own structure and material usage to provide a region with anti-deformation capability, and it is not excluded that the non-mounting portion 11b can provide a small amount of anti-deformation capability with the help of other structures or components. Of course, the non-mounting portion 11b may not be installed with any other structures and components, and all rely on its own structure and material usage to provide anti-deformation capability.

[0090] Deformation resistance refers to the ability of a material or structure to resist external forces without deformation, that is, the degree of deformation of a material or structure under unit stress. The smaller the deformation, the stronger the deformation resistance of the material or structure. The deformation resistance involved in the embodiment of the present application refers to the ability of the beam body 11 to resist collision force without deformation.

[0091] The mounting structure 20 refers to a mechanical structure or component installed on the mounting portion 11a and allowing the mounted load to be mounted on the mounting portion 11a. Multiple mounting structures 20 can be used to mount the same mounted load. For example, the mounting structure 20 can be a high-strength screw connection, a high-strength mounting bracket, etc. It should be noted that the mounting structure 20 can allow a certain movable space between the mounted load and the beam body 11 to provide the micro-shaking space required during vibration or collision.

[0092] Figure 8 for Figure 1 Provide a cross-sectional view of the beam structure at the mounting part. Fig. 9 for Figure 1 The cross-sectional view of the beam structure provided in the non-mounted part is shown in Figure 1. Figure 8 and Fig. 9 As shown, in the beam structure 10 provided in the above embodiment, the plate thickness H1 of the mounting portion 11a is less than the plate thickness H2 of the non-mounting portion 11b, and the plate thickness of the non-mounting portion 11b is large, the amount of raw materials used is large, and the required anti-deformation ability is provided. The plate thickness of the mounting portion 11a is relatively small, the amount of raw materials used is relatively small, and the required anti-deformation ability is provided by means of the mounting structure 20.

[0093] The beam structure 10 provided in the above embodiment performs different plate thickness configurations according to the material requirements of different areas on the beam body 11, so that the actual plate thickness in different areas tends to be consistent with the required plate thickness, avoiding the actual plate thickness being greater than the required plate thickness, causing waste of raw materials and increased costs, and reducing the manufacturing cost of the beam structure 10.

[0094] In some embodiments, the mounting portion 11a and the non-mounting portion 11b may be arranged along the extension direction of the beam body 11, and the mounting portion 11a and the non-mounting portion 11b may be separated by a distance, or the edges of the two may be directly connected.

[0095] like Figure 1 , Figure 3 and Figure 5 As shown, in some embodiments, the beam body 11 includes a plurality of mounting portions 11 a and a plurality of non-mounting portions 11 b , and a non-mounting portion 11 b is disposed between adjacent mounting portions 11 a .

[0096] A non-mounting portion 11b is arranged between adjacent mounting portions 11a, and an area with a large plate thickness is arranged between two adjacent areas with small plate thickness. The areas with different plate thicknesses are arranged alternately to meet the requirements of the spacing configuration of the mounting structure 20. The beam body 11 has a more uniform and balanced deformation resistance, thereby improving the overall deformation resistance of the beam structure 10.

[0097] In some embodiments, multiple mounting portions 11a are arranged at intervals along the length direction of the beam body 11, multiple non-mounting portions 11b are arranged at intervals along the length direction of the beam body 11, multiple mounting portions 11a and multiple non-mounting portions 11b are alternately arranged along the length direction of the beam body 11, and areas with different plate thicknesses are alternately arranged along the length direction of the beam body 11.

[0098] Fig.10 for Figure 1 The cross-sectional view of the beam structure at the transition section is provided. Figure 1 and Fig.10 As shown, in some embodiments, the beam body 11 further includes a transition portion 11c, which is located between the mounting portion 11a and the non-mounting portion 11b. From the non-mounting portion 11b to the mounting portion 11a, the thickness of the plate of the transition portion 11c gradually decreases.

[0099] From the direction of the non-mounting portion 11b to the mounting portion 11a, the plate thickness of the transition portion 11c gradually decreases from H2, the plate thickness near the non-mounting portion 11b is larger, closer to the plate thickness H2 of the non-mounting portion 11b, and the plate thickness near the mounting portion 11a is smaller, closer to the plate thickness H1 of the mounting portion 11a. The transition portion 11c provides a gradual trend for the plate thickness difference between the mounting portion 11a and the non-mounting portion 11b, ensuring a stable transition of the plate thickness between the mounting portion 11a and the non-mounting portion 11b, and providing the beam structure 10 with a more stable anti-deformation capability.

[0100] In addition, the mounting portion 11a is installed with a mounting structure 20, which provides partial anti-deformation capability to assist the mounting portion 11a in receiving collision force. From the direction of the mounting structure 20 pointing away from the mounting structure 20, the assisting effect of the mounting structure 20 on the mounting portion 11a gradually decreases. By providing a transition portion 11c and gradually increasing the plate thickness of the transition portion 11c from the mounting portion 11a to the non-mounting portion 11b, the gradually decreasing assisting effect of the mounting structure 20 is compensated, so that the beam body 11 maintains a balanced distribution of anti-deformation capability as a whole.

[0101] For example Figure 1 , Figure 3 and Figure 5 As shown, in some embodiments, the beam body 11 includes a plurality of mounting portions 11 a disposed at intervals, and a non-mounting portion 11 b and a transition portion 11 c are disposed between adjacent mounting portions 11 a.

[0102] A transition portion 11c is arranged between the mounting portion 11a and the non-mounting portion 11b, a non-mounting portion 11b is arranged between adjacent transition portions 11c, or a mounting portion 11a is arranged between adjacent transition portions 11c. Areas with different plate thicknesses are arranged alternately, and the transition portions 11c are arranged at intervals to provide for transition between adjacent mounting portions 11a and non-mounting portions 11b. The beam body 11 has a more uniform and balanced anti-deformation ability, thereby improving the overall anti-deformation ability of the beam structure 10.

[0103] Reference Figure 5 and Figure 6 ,as well as Figure 8 and Fig. 9 As shown, in some embodiments, the beam body 11 is formed into a closed profile by rolling and then welding a metal sheet.

[0104] Rolling refers to the process of bending a metal sheet multiple times through a rolling process to form a structure with a contour. The metal sheet can be bent from a set position of the sheet using a roller, and the contour is formed by bending multiple times at multiple different positions.

[0105] The metal plate is rolled and then welded, so that the beam body 11 has a closed profile, and the structure of the beam body 11 is more stable and has better deformation resistance. The closed profile is formed by multiple bendings and has multiple different profile sides, each of which has an independent plate thickness, which can be used to carry the mounting load from different sides.

[0106] Reference Figure 5 As shown, in some embodiments, the beam body 11 includes a first beam 1101 and a second beam 1102, and the first beam 1101 and the second beam 1102 are formed by integrally roll-welding metal plates.

[0107] Integrated rolling means that different parts of the metal sheet are bent multiple times by a rolling process, and different parts of the metal sheet have contours after rolling, and the contours of different parts can be the same or different. The first beam 1101 can be formed by welding a part of the metal sheet after rolling, and the second beam 1102 can be formed by welding another part of the metal sheet after rolling.

[0108] The first beam 1101 and the second beam 1102 are formed by integrally rolling a metal plate. The first beam 1101 and the second beam 1102 are integrally connected, and the structure of the beam body 11 is more stable and has better deformation resistance.

[0109] like Figure 6 , Figure 8 and Fig. 9 As shown, in some embodiments, the first beam 1101 is formed into an envelope profile by rolling a portion of the metal sheet, and the joint of the envelope profile is welded to form a closed profile. The second beam 1102 is formed into a bent profile by rolling another portion of the metal sheet, and the end of the bent profile is joined to the envelope profile, and the joint of the end and the envelope profile is welded to form a closed profile.

[0110] The first beam 1101 is formed into an envelope profile by rolling a portion of the metal sheet, and the joint is welded to form a closed profile, so that the first beam 1101 has better structural stability and better anti-deformation ability. The second beam 1102 is formed into a bent profile by rolling another portion of the metal sheet, and the joint between the end and the envelope profile is welded to form a closed profile, so that the second beam 1102 has better structural stability and better anti-deformation ability.

[0111] like Figure 8 and Fig. 9 As shown, in some embodiments, on the mounting portion 11a and the non-mounting portion 11b, the envelope contour includes a first joining edge 1101a, a first envelope edge 1101b, a second envelope edge 1101c, a third envelope edge 1101d, and a fourth envelope edge 1101e, which are perpendicular to each other in sequence. The first envelope edge 1101b, the second envelope edge 1101c, the third envelope edge 1101d, and the fourth envelope edge 1101e are combined to form a square. The first joining edge 1101a is attached to the inner side surface of the fourth envelope edge 1101e. The inner side surfaces of the first joining edge 1101a and the fourth envelope edge 1101e are laser welded, and the envelope contour forms a closed contour after welding.

[0112] In some embodiments, the rolling process of the first beam 1101 may be: using a roller to bend the first joining edge 1101a 90 degrees relative to the first enveloping edge 1101b at the connection position of the first joining edge 1101a and the first enveloping edge 1101b, then bend the first enveloping edge 1101b 90 degrees relative to the second enveloping edge 1101c at the connection position of the first enveloping edge 1101b and the second enveloping edge 1101c, then bend the second enveloping edge 1101c 90 degrees relative to the third enveloping edge 1101d at the connection position of the second enveloping edge 1101c and the third enveloping edge 1101d, and so on, to form an enveloping profile. Wherein, the bending direction of the first joining edge 1101a is opposite to the bending direction of the first enveloping edge 1101b, and the bending directions of the first enveloping edge 1101b, the second enveloping edge 1101c and the third enveloping edge 1101d are the same.

[0113] like Figure 8 and Fig. 9 As shown, in some embodiments, on the mounting portion 11a and the non-mounting portion 11b, the bending profile includes a second joining edge 1102a, a first edge 1102b, a second edge 1102c, and a third edge 1102d which are perpendicular to each other in sequence. The first edge 1102b, the second edge 1102c, and the third edge 1102d are combined to form a U-shape. The second joining edge 1102a is attached to the outer side surface of the first enveloping edge 1101b, the first enveloping edge 1101b blocks the opening of the U-shape, the first joining edge 1101a extends into the opening of the U-shape, and the outer side surfaces of the second joining edge 1102a and the first enveloping edge 1101b are laser welded to form a closed profile.

[0114] In some embodiments, the rolling process of the second beam 1102 may be: using a roller to bend the second joint edge 1102a 90 degrees relative to the first edge 1102b at the connection position of the second joint edge 1102a and the first edge 1102b, then bend the first edge 1102b 90 degrees relative to the second edge 1102c at the connection position of the first edge 1102b and the second edge 1102c, then bend the second edge 1102c 90 degrees relative to the third edge 1102d at the connection position of the second edge 1102c and the third edge 1102d, and so on, to form a bending profile. The bending direction of the second joint edge 1102a is opposite to the bending direction of the first edge 1102b, and the bending directions of the first edge 1102b, the second edge 1102c and the third edge 1102d are the same.

[0115] It should be noted that in the bending profile and the envelope profile, the number of edges, the bending angles between adjacent edges, and the bending direction of the edges need to be set according to the target profile to be formed, and the embodiments of the present application do not limit this. There are many options for the target profile to be formed. For example, the overall profile of the beam body 11 can be L-shaped, Japanese-shaped, or mouth-shaped, and the profiles of the first beam 1101 and the second beam 1102 can be square, rectangular, triangular, trapezoidal, and the like, and the embodiments of the present application do not limit this. There are many welding materials and welding methods to choose from for welding, and the embodiments of the present application do not limit this.

[0116] like Figure 1 As shown, in some embodiments, the mounting portion 11a is provided with a mounting hole 1103 for mounting the mounting structure 20, and the mounting portion 11a is a region that is less than or equal to a predetermined distance from the mounting hole 1103 along the extension direction of the beam body 11. The predetermined distance defines a predetermined range of the mounting portion 11a, which facilitates the thinning of the thickness within the predetermined range on the metal plate.

[0117] like Figure 2 As shown, in some embodiments, the mounting portion 11 a may be a region that is less than or equal to a predetermined distance from the edge of the mounting hole 1103 along the length extension direction of the beam body 11 .

[0118] In other embodiments, the mounting portion 11 a may be a region whose distance from the center of the mounting hole 1103 along the length extension direction of the beam body 11 is less than or equal to a predetermined distance.

[0119] For example, Figure 2 As shown, the mounting portion 11a may be a region that is less than or equal to a predetermined distance L1 and L2 from the left and right edges of the mounting hole 1103 along the length extension direction of the beam body 11. L1 and L2 may be the same or different.

[0120] In some embodiments, the width of the mounting portion 11 a is similar to or consistent with the width of the beam body 11 .

[0121] It should be noted that the above-mentioned predetermined distances can be specifically selected based on factors such as the overall length of the beam body 11, the number of mounting parts 11a distributed on the entire length, the aperture size of the mounting hole 1103, etc. The embodiment of the present application does not impose specific restrictions on the predetermined distances.

[0122] It should be noted that the mounting portion 11a may be a region of the beam body 11 that is less than or equal to any distance from the mounting hole 1103 along any extension direction. For example, when the width of the beam body 11 is relatively large, the mounting portion 11a may be a region of the beam body 11 that is less than or equal to a first predetermined distance from the mounting hole 1103 along the width extension direction, and the range of the mounting portion 11a is defined from the width direction. The mounting portion 11a may also be a region that is less than or equal to a second predetermined distance from the mounting hole 1103 along the length extension direction, and the range of the mounting portion 11a is defined from the length direction.

[0123] In some embodiments, the mounting portion 11a includes a mounting hole 1103 that penetrates the thickness of the metal plate, and the mounting structure 20 is installed in the mounting hole 1103. The mounting structure 20 can be a high-strength threaded connection or a high-strength mounting bracket, for example, a high-strength bolt structure.

[0124] In some embodiments, the mounting structure 20 is inserted into the mounting hole 1103, and the mounting structure 20 has two ends exposed from the mounting hole 1103, one end can be used to connect the mounting load, and the other end can be used to connect to the target device, and the mounting load is mounted on the target device through the mounting structure 20.

[0125] like Figure 8 As shown, in some embodiments, the beam body 11 adopts the above-mentioned envelope profile, and the mounting holes 1103 can be set on one or more envelope edges. For example, the second envelope edge 1101c and the fourth envelope edge 1101e are respectively provided with mounting holes 1103, and the mounting structure 20 is inserted into the two mounting holes 1103. The same mounting portion 11a is provided with two mounting holes 1103, one mounting hole 1103 is inserted into a part of the mounting structure 20, and the other mounting hole 1103 is inserted into another part of the mounting structure 20. The mounting structure 20 provides assistance to the mounting portion 11a through the two mounting holes 1103, and can be used to absorb the collision force together with the mounting portion 11a, thereby improving the anti-deformation ability of the mounting portion 11a.

[0126] like Figure 1 As shown, in the case where the beam body 11 includes a first beam 1101 and a second beam 1102 , in one embodiment, a mounting hole 1103 is provided on the first beam 1101 to accommodate the need to carry the mounting load through the mounting structure 20 .

[0127] In other embodiments, the second beam 1102 may also be provided with a mounting hole 1103. The mounting hole 1103 of the first beam 1101 and the mounting hole 1103 of the second beam 1102 may be used to mount different parts of the same mounting load, or to mount different mounting loads. Whether the second beam 1102 is provided with a mounting hole 1103 depends on the requirements of the mounting load corresponding to the second beam 1102.

[0128] like Figures 11 to 15 As shown, in some embodiments, the beam body 11 is used to mount the above-mentioned battery 100, the first beam 1101 is inserted into the mounting structure 20 through the mounting hole 1103, one end of the mounting structure 20 is mounted on the box body 101, and the other end of the mounting structure 20 is connected to the electrical device 1000, and the second beam 1102 is used to connect to the battery cell.

[0129] like Figure 5 As shown, in some embodiments, the first beam 1101 and the second beam 1102 are connected to form a stepped structure 1104, a portion of the first beam 1101 constitutes a higher step surface on the stepped structure 1104, a portion of the second beam 1102 constitutes a lower step surface on the stepped structure 1104, and the mounting hole 1103 is arranged on the higher step surface.

[0130] The step structure 1104 provides a convenient positioning function for the mounted load to be mounted on the beam structure 10, which is used to ensure the accuracy of the assembly process and provide stability after the assembly is completed. In addition, the step angle close to a right angle of the step structure 1104 itself can provide a fastening effect for the mounted load, which can avoid installing a connecting piece on the second beam to connect the mounted load, thereby avoiding the use of other components to connect the mounted load to the second beam 1102.

[0131] In some embodiments, the step angle of the step structure 1104 provides a positioning function for the battery cells in the battery 100. The accurate positioning of the battery cells by the step angle provides convenience and accuracy in the overall assembly of the battery 100 to the beam structure 10. The higher step surface of the first beam 1101 may be provided with a connection hole 1105 different from the mounting hole 1103. The box 101 is connected to the higher step surface through the connection hole 1105. The first beam 1101 is also used to connect the box 101 and the electrical device 1000 through the mounting structure 20, so that the battery 100 is mounted on the electrical device 1000 as a whole.

[0132] in, Figure 2 and Figure 4 FIG. 1 shows a connection hole 1105 on the first beam 1101 that is different from the mounting hole 1103. It should be noted that: Figure 2 and Figure 4The connection hole 1105 shown in the figure is only used to distinguish it from the mounting hole 1103, and is arranged at intervals from the mounting hole 1103. The difference between the connection hole 1105 and the mounting hole 1103 is reflected in the realization of different functions: the connection hole 1105 is used to make the box body 101 and the first beam 1101 cooperate and connect, and the box body 101 and the first beam 1101 can be connected by a connecting piece installed therein; the mounting hole 1103 is used to install the mounting structure 20, the mounting structure 20 is used to connect the box body 101, the first beam 1101 and the electric device 1000, and the mounting hole 1103 is used to mount the battery 100 on the electric device 1000. The specific number, position, type, and shape of the connection hole 1105 are not specifically limited, and the shape of the connection hole 1105 can be the same as or different from that of the mounting hole 1103.

[0133] like Figure 1 , Figure 3 and Figure 5 As shown, in some embodiments, the beam structure 10 includes two beam bodies 11, namely a first beam body 111 and a second beam body 112. The first beam body 111 and the second beam body 112 are arranged in parallel and spaced apart, and the two first beams 1101 are arranged on the inner sides of the two second beams 1102. The freedom of the mounted load in opposite directions is limited by the two beam bodies 11 arranged in parallel and spaced apart, and the two beam bodies 11 arranged in parallel and spaced apart can be arranged on opposite sides with high collision frequency.

[0134] In some embodiments, the beam structure 10 further includes a third beam body 113, which is made of a metal sheet. The thickness of the metal sheet of the third beam body 113 is uniform, and uniform means that the thickness of the metal sheet is consistent across the entire area. The two ends of the third beam body 113 are respectively connected to the ends of the first beam body 111 and the second beam body 112 on the same side. The third beam body 113 limits the specific position of the mounted load on the first beam body 111 and the second beam body 112, so that the mounted load can be stably mounted on the beam structure 10.

[0135] In some embodiments, the third beam body 113 is formed by rolling and welding a metal sheet to form a closed profile. For example, the third beam body 113 includes a first beam portion 1131 and a second beam portion 1132, and the first beam portion 1131 and the second beam portion 1132 are formed by rolling and welding a metal sheet to form a closed profile. The closed profile of the third beam body 113 can be the same as or different from the closed profiles of the first beam body 111 and the second beam body 112.

[0136] In some embodiments, the closed contour of the third beam body 113 is the same as the closed contour of the first beam body 111 and the second beam body 112, and all three have a stepped structure 1104. The two ends of the first beam portion 1132 are respectively connected to the ends of the same side of the two first beams 1101, and the two ends of the second beam portion 1132 are respectively connected to the ends of the same side of the two second beams 1102. The third beam body 113 may not distinguish between the mounting portion 11a and the non-mounting portion 11b, and the length of the third beam body 113 is smaller than the length of the first beam body 111 and the second beam body 112, and other structures may remain the same.

[0137] In some embodiments, the first beam 1101 mounts the battery 100 to the electrical device 1000 through the mounting structure 20. The opposite sides of the box 101 are respectively connected to the two first beams 1101 through the connection holes 1105 on the two first beams 1101, and the two first beams 1101 are respectively connected to the opposite sides of the box 101 through the mounting structures 20 thereon, so that the battery 100 is mounted on the electrical device 1000 as a whole through the opposite sides of the box 101.

[0138] The step structure 1104 of the first beam body 111 and the step structure 1104 of the second beam body 112 are arranged opposite to each other, and the battery cells are connected to the two second beams 1102, that is, the battery cells are arranged between the step angles of the two step structures 1104, and then the specific position of the battery 100 between the first beam body 111 and the second beam body 112 is limited by the third beam body 113, so that the battery 100 is assembled to the electrical device 1000 through the entire beam structure 10.

[0139] like Figure 1 , Figure 3 and Figure 5 As shown, in some embodiments, the first beam 1131 may be provided with a first connection hole 113a, in which a first connection member is mounted, for connecting the box 101 to the first beam 1131. In some embodiments, the second beam 1132 may be provided with a second connection hole 113b, in which a second connection member is mounted, for connecting the battery cell to the second beam 1132.

[0140] The first connecting member and the second connecting member may be screws or latches, etc.

[0141] Another object of the embodiment of the present application is to provide a battery 100 , which includes a box body 101 and a battery cell accommodated in the box body 101 , and the beam structure 10 as described above, wherein the box body 101 is connected to the beam structure 10 .

[0142] The battery 100 provided in the embodiment of the present application has a box 101 connected to the beam structure 10 in the battery 100, and the battery 100 can be connected to the electrical device 1000 through the mounting structure 20 installed on the beam structure 10. The mounting structure 20 is installed on the mounting part 11a, and the plate thickness of the mounting part 11a is less than the plate thickness of the non-mounting part 11b. The plate thickness of the mounting part 11a is large, the amount of raw materials used is large, and it has the required anti-deformation ability. The plate thickness of the non-mounting part 11b is relatively small, the amount of raw materials used is relatively small, and the required anti-deformation ability is provided by means of the mounting structure 20 or the connecting parts configured on the mounting structure 20.

[0143] The battery 100 provided in the embodiment of the present application is configured with different plate thicknesses according to the material requirements of different areas on the beam structure 10, so that the actual plate thicknesses in different areas tend to be consistent with the required plate thicknesses, thereby avoiding the actual plate thickness being greater than the required plate thickness, causing waste of raw materials and increased costs, and reducing the manufacturing costs of the beam structure 10 and the battery 100.

[0144] In some embodiments, the beam body 11 includes a first beam 1101 and a second beam 1102, the first beam 1101 and the second beam 1102 form a stepped structure 1104, a portion of the first beam 1101 constitutes a higher step surface on the stepped structure 1104, a portion of the second beam 1102 constitutes a lower step surface on the stepped structure 1104, and the higher step surface is provided with a mounting hole 1103. The box body 101 is connected with the higher step surface, the lower step surface is located inside the box body 101, and the battery cell is connected with the lower step surface.

[0145] In the battery 100 provided by the above scheme, the box body 101 is connected with the higher step surface of the step structure 1104, and the battery cell is connected with the lower step surface of the step structure 1104. The box body 101 and the battery cell are connected respectively through the different step surfaces to bear the loads of the box body 101 and the battery cell respectively.

[0146] The step structure 1104 provides a convenient and stable positioning function for connecting the battery cell to the beam structure 10, and provides accuracy in connecting the battery 100 to the beam structure 10, and provides stability after the battery 100 is mounted on the power-consuming device 1000. The step structure 1104 provides a fastening function for the battery cell, eliminating the need to use other components to connect the battery cell to the lower step surface.

[0147] like Figures 11 to 13As shown, in some embodiments, the battery 100 further includes a pressing sheet 102, a gasket 103, a sealing sheet 104 and a water cooling member 105. The box body 101 is provided with an edge sheet 101a, which is protruded from the surface of the box body toward the outside thereof, and the edge sheet 101a can extend along the circumference of the box body 101. The gasket 103 can be a square structure, and the gasket 103 is padded on the higher step surface of the step structure 1104. The number of pressing sheets can be selected as 4, and the 4 pressing sheets are respectively stacked on the upper surfaces of the 4 sides of the gasket 103, and the edge sheet 101a is sandwiched between the 4 pressing sheets 102 and the gasket 103.

[0148] On the first beam body 111 and the second beam body 112, the mounting structure 20 is sequentially penetrated through the pressing plate 102, the edge plate 101a, the gasket 103 and the mounting hole 1103, the mounting structure 20 is connected to the box body 101 through the edge plate 101a, and the lower end of the mounting structure 20 exposed from the mounting hole 1103 is connected to the electrical device 1000.

[0149] The number of water-cooling components 105 can be selected to be two, one water-cooling component 105 is connected to one end of the first beam body 111 away from the third beam body 113, and the other water-cooling component 105 is connected to one end of the second beam body 112 away from the third beam body 113. The water-cooling component 105 is provided with a liquid pipe 105a for the coolant to enter and exit, and the liquid pipe 105a can be one of a liquid inlet pipe and a liquid outlet pipe. The water-cooling component 105 is arranged below the gasket 103, and the liquid pipe 105a passes through the gasket 103 to reach the top thereof. The water-cooling component 105 is used to provide coolant to the cooling plate or output the coolant of the water-cooling plate, and the cooling plate is used to provide cooling to the battery cell. There are many options for the positional relationship between the cooling plate and the battery cell, and this embodiment does not limit this.

[0150] The sealing sheet 104 is arranged at one end of the first beam body 111 and the second beam body 112 away from the third beam body 113. The middle part of the sealing sheet 104 is overlapped on the lower surface of the gasket 103, and the two parts of the sealing sheet 104 located at the end side are respectively connected to the lower sides of the two water-cooling parts 105. The sealing sheet 104 is used to limit the position of the box body 101 on the first beam body 111 and the second beam body 112 in combination with the third beam body 113.

[0151] In another embodiment, a cooling plate may be used to replace the gasket 103. The cooling plate is a plate-like structure. A cooling channel is provided inside the cooling plate for flowing a coolant through the cooling plate. The coolant is used to provide cooling to the battery cell. The edge of the cooling plate is stacked on the higher step surface of the step structure 1104. The battery cell contacts the plate surface of the cooling plate through the space between the first beam body 111 and the second beam body 112. A bottom guard plate may be used to replace the sealing plate 104. The bottom guard plate is a plate-like structure. The bottom guard plate is provided on the side of the cooling plate away from the battery cell. The edge of the bottom guard plate may be connected to the lower surface of the beam body or to the edge of the cooling plate.

[0152] like Fig.14 and Fig.15 As shown, another purpose of the embodiment of the present application is to provide an electric device 1000 , which includes the battery 100 as described above, and the battery 100 is mounted on the electric device 1000 via a mounting structure 20 .

[0153] In some embodiments, the electrical device includes a device body 1001. The second enveloping edge 1101c and the fourth enveloping edge 1101e of the beam body 11 are respectively provided with mounting holes 1103, and the mounting structure 20 is inserted into the two mounting holes 1103. The mounting structure 20 passes through the pressing sheet 102, the edge sheet 101a, the gasket 103 and the mounting holes 1103 in sequence. The upper end of the mounting structure 20 exposes the mounting holes 1103, and the upper end is connected to the box body 101. The lower end of the mounting structure 20 exposes the mounting holes 1103, and the lower end is connected to the device body 1001, so that the battery 100 is mounted on the device body 1001.

[0154] The beneficial effects of the electrical device 1000 provided in the embodiment of the present application compared with the prior art are consistent with the beneficial effects of the beam structure 10 provided in the embodiment of the present application and the battery 100 provided in the embodiment of the present application compared with the prior art, and will not be repeated here.

[0155] The above description is only a preferred embodiment of the present application and is 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 beam structure, characterized in that: The beam structure includes a beam body, which is formed by a plate. The beam body includes a mounting part and a non-mounting part. The mounting part is equipped with a mounting structure for mounting a load, wherein the thickness of the plate of the mounting part is smaller than the thickness of the plate of the non-mounting part.

2. The beam structure according to claim 1, characterized in that: The beam body includes a plurality of the mounting portions and a plurality of the non-mounting portions, and the non-mounting portions are arranged between adjacent mounting portions.

3. The beam structure according to claim 1, characterized in that: The beam body also includes a transition portion, which is located between the mounting portion and the non-mounting portion; the thickness of the plate of the transition portion gradually decreases in a direction from the non-mounting portion to the mounting portion.

4. The beam structure according to claim 3, characterized in that: The beam body includes a plurality of mounting portions that are spaced apart from each other, and the non-mounting portion and the transition portion are disposed between adjacent mounting portions.

5. The beam structure according to claim 1, characterized in that: The beam body is formed into a closed profile by rolling and welding metal plates.

6. The beam structure according to any one of claims 1 to 5, characterized in that: The mounting portion is provided with a mounting hole for mounting the mounting structure, and the mounting portion is a region whose distance from the mounting hole is less than or equal to a predetermined distance along the extending direction of the beam body.

7. The beam structure according to claim 6, characterized in that: The beam body includes a first beam and a second beam, the first beam is connected to the second beam, and the mounting hole is arranged on the first beam.

8. The beam structure according to claim 7, characterized in that: The first beam and the second beam are formed by integrally roll-welding metal plates.

9. The beam structure according to claim 8, characterized in that: The first beam and the second beam form a stepped structure, a portion of the first beam constitutes a higher step surface on the stepped structure, a portion of the second beam constitutes a lower step surface on the stepped structure, and the mounting hole is arranged on the higher step surface.

10. The beam structure according to claim 9, characterized in that: The first beam is rolled by part of the metal sheet to form an envelope profile, and the joint position of the envelope profile is welded to form a closed profile; The second beam is rolled by another part of the metal sheet to form a bending profile, the end of the bending profile is joined with the envelope profile, and the joining position of the end and the envelope profile is welded to form a closed profile.

11. The beam structure according to any one of claims 7 to 10, characterized in that: The beam structure comprises two beam bodies, namely a first beam body and a second beam body; The first beam body and the second beam body are arranged in parallel and spaced apart, and the two first beams are arranged on the inner sides of the two second beams.

12. The beam structure according to claim 11, characterized in that: The beam structure also includes a third beam body, which is made of a metal plate. The metal plate of the third beam body has a uniform thickness, and two ends of the third beam body are respectively connected to the ends of the first beam body and the second beam body on the same side.

13. The beam structure according to claim 12, characterized in that: The third beam body is formed into a closed profile by rolling and welding metal plates.

14. A battery, characterized in that: The battery comprises a box body and a battery cell accommodated in the box body, and a beam structure according to any one of claims 1 to 13, wherein the box body is connected to the beam structure.

15. A battery, characterized in that: The battery comprises a box body and a battery cell accommodated in the box body, and the beam structure as claimed in claim 9; The box body is connected with the higher step surface of the step structure in a matching manner, the lower step surface of the step structure is located inside the box body, and the battery cell is connected with the lower step surface in a matching manner.

16. An electrical device, characterized in that: It includes a battery as described in claim 14 or 15, wherein the battery is mounted on the electrical device through the mounting structure.

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