CN220492047U - Battery and electricity utilization device - Google Patents

Abstract

The application discloses battery and power consumption device, the battery includes: a battery cell; the box, the box includes a plurality of curb plates, and at least one curb plate includes board body and fixed beam, and the border of board body is located to the fixed beam and towards the inner space protrusion of box, and the fixed beam is used for supporting at least part battery monomer along first direction, and board body and fixed beam are integrated into one piece. In the technical scheme of the embodiment of the application, the fixing beam for supporting the battery monomer is directly formed on the plate body, so that the structural strength of the joint of the fixing beam and the plate body is improved, and the probability of breaking the connection between the fixing beam and the plate body by the acting force of the battery monomer on the fixing beam is reduced; the action force of the battery monomer acting on the fixing beam is not required to be transferred to the plate body through the welding point, so that the bearing capacity of the box body can be increased, the containing amount of the battery monomer is further improved, and the structural strength requirements of batteries in different forms are met.

Description

Batteries and electrical devices

Technical field

This application relates to the field of batteries, and specifically to a battery and an electrical device.

Background technique

In the related art, a module beam is usually installed in a battery box for the installation of battery cells. The module beam is welded or bonded to the box as a separate component. Its structural strength mainly depends on the welding and glue strength. However, the welding position Or the bonding position is prone to failure, thus affecting the strength of the overall battery structure.

Utility model content

In view of the above problems, the present application provides a battery and a power device that can improve the overall structural strength of the battery.

In a first aspect, the application provides a battery, including: a battery cell; a box body, the box body includes a plurality of side plates, at least one of the side plates includes a plate body and a fixed beam, the fixed beam is located on The edge of the plate body protrudes toward the internal space of the box. The fixed beam is used to support at least part of the battery cells in the first direction. The plate body and the fixed beam are an integrally formed part. .

In the technical solution of the embodiment of the present application, the side plate is configured to include a plate body and a fixed beam, so that the fixed beam supporting the battery cell is directly formed on the plate body, which improves the structure of the connection between the fixed beam and the plate body. strength, which reduces the probability that the force exerted by the battery cell on the fixed beam will disconnect the fixed beam and the plate body; the integrated design of the fixed beam and the plate body is compared with the support welded to the inside of the side plate. In terms of structure, the force exerted by the battery cells on the fixed beam does not need to be transmitted to the plate body through the welding points, which can increase the load-bearing capacity of the box, thereby increasing the capacity of the battery cells and meeting the strength requirements of different forms of battery structures. .

In some embodiments, the method further includes: a reinforcing member, the reinforcing member is provided in the fixed beam and extends along the extension direction of the fixed beam, and the reinforcing member is fixedly connected to the fixed beam. In the above technical solution, by embedding reinforcements in the fixed beam, the stiffness and strength of the fixed beam can be improved, thereby improving the overall structural strength and meeting the strength requirements of different forms of battery structures; and the reinforcements are placed inside the fixed beam without The additional space occupied reduces the impact on battery energy density.

In some embodiments, the reinforcement is provided with a hollow cavity. In the above technical solution, by arranging the reinforcement as a hollow structure, the hollow design can reduce the weight of the reinforcement itself while maintaining sufficient strength and stability. This is the basis for enhancing the structural strength of the fixed beam. It can reduce the weight of the overall structure and meet lightweight design requirements.

In some embodiments, reinforcing ribs are provided in the hollow cavity. In the above technical solution, by arranging reinforcing ribs in the hollow cavity of the reinforcing member, the strength of the overall structure can be further improved, while at the same time reducing the probability of a significant increase in the weight of the overall structure, meeting the lightweight design requirements.

In some embodiments, the reinforcing ribs are arranged along the first direction. In the above technical solution, by arranging the reinforcing ribs along the first direction, the load-bearing capacity of the fixed beam in the first direction can be improved, and at least some of the battery cells are supported on the fixed beam along the first direction, thereby improving the load-bearing capacity of the battery. The supporting effect of the monomer improves the stability of the overall structure.

In some embodiments, the hollow cavity extends along the extension direction of the fixed beam, and the reinforcing rib extends along the extension direction of the fixed beam. In the above technical solution, by arranging the hollow cavity and reinforcing ribs as structures extending along the extension direction of the fixed beam, the weight of the reinforcing member can be reduced, the structural strength of the reinforcing member can be increased, and the overall structural strength and stability can be improved.

In some embodiments, the reinforcement is formed in one piece. In the above technical solution, the reinforcement does not need to be assembled, which can improve production efficiency, improve the structural strength and stability of the reinforcement, and reduce manufacturing costs and processing time.

In some embodiments, the reinforcement is welded to the fixed beam. In the above technical solution, by welding the reinforcing member to the fixed beam, sufficient connection is achieved between the reinforcing member and the fixed beam, thereby improving the reliability of the connection between the reinforcing member and the fixed beam, thereby improving the overall structural strength.

In some embodiments, the battery cells are multiple and arranged side by side in a group. The battery further includes a mounting plate located at the end of the battery cells along the arrangement direction. The mounting plate Connected to the fixed beam. In the above technical solution, the battery cells are arranged in the form of a battery pack, and a mounting plate is provided at the end of each group. The mounting plate is connected to a fixed beam, which can maintain the position and stability of the battery cells. , and can make the battery cells arranged compactly, increase the capacity of the battery cells, and improve the stability of the entire structure through the cooperation of the mounting plate and the fixed beam; in addition, the setting of the mounting plate can also facilitate the placement of the battery cells in the box. Assembly and disassembly.

In some embodiments, the battery further includes a support structure located at the bottom of the battery cell and connected to the fixed beam. In the above technical solution, a support structure is provided at the bottom of the battery cell and connected to the fixed beam. The support structure can play the role of supporting the battery cells, dispersing the weight of the battery cells, protecting the battery cells to a certain extent, and improving the overall safety and stability; the support structure is connected to the fixed beam, which can further increase the overall structure stability to reduce the impact of vibration and oscillation on battery cells in different environments.

In some embodiments, the battery cells are multiple and arranged side by side in a group. The battery further includes a support structure and a mounting plate. The mounting plate is located at the end of the multiple battery cells along the arrangement direction. The fixed beam includes a first step surface and a second step surface perpendicular to the first direction. The first step surface is closer to the outside of the box than the second step surface. The mounting plate is connected to The first step surface, the support structure is connected to the second step surface. In the above technical solution, by arranging the fixed beam in the form of two step surfaces, the support structure is connected to the second step surface, and the mounting plate is connected to the first step surface, so that the support structure and the installation plate are both connected to the fixed beam , which can not only improve the stability and structural strength of the battery, but also enable the support structure and mounting plate to more effectively support and fix the battery cells, reducing vibration and damage under high loads and complex environments.

In some embodiments, the support structure includes thermal management components. In the above technical solution, by arranging thermal management components on the support structure, on the basis of supporting the battery cells, it can not only help control the temperature of the battery cells, extend the service life of the battery, but also improve the overall performance of the battery system. efficiency.

In some embodiments, projected along the first direction, the projection of the reinforcement is completely located within the projection of the first step surface. In the above technical solution, the reinforcing member corresponds to the first step surface part of the fixed beam, so that the reinforcing member can be in contact with the position corresponding to the first step surface, thereby improving the structural strength of the first step surface of the fixed beam. Improve the support effect of the mounting plate, improve the stability and structural strength of the battery.

In some embodiments, the side plate is a sheet metal part, and the fixed beam is formed on the side plate through a rolling process. In the above technical solution, the entire side plate uses a rolling process to form the fixed beam and the plate body, which can improve the structural strength of the side plate and reduce the probability of breakage and separation of the fixed beam and the plate body. At the same time, the sheet metal parts have high processing accuracy and It has the advantages of strong adaptability and can better meet the manufacturing needs of different batteries.

In some embodiments, the battery cell extends along the arrangement direction relative to the two side plates, and both ends of the battery cell are respectively supported on the fixed beams of the two side plates. In the above technical solution, the battery cells are installed and fixed by supporting both ends of the battery cells on two fixed beams respectively. This eliminates the need for structures such as mounting plates, and the battery cells are directly installed on the fixed beams. It is beneficial to realize the close arrangement of batteries, increase the capacity of battery cells, and increase battery energy density.

In some embodiments, the box includes a plurality of sub-boxes, each of the sub-boxes includes a plurality of the side panels, and the lower edges of at least two oppositely arranged side panels of each of the sub-boxes are The fixed beam is formed. In the above technical solution, by forming fixed beams on the lower edges of two oppositely arranged side plates of the sub-box, the battery cells can be supported on the fixed beams, thereby achieving support and fixation of the battery cells in each sub-box.

In some embodiments, at least two of the sub-boxes are arranged in the up and down direction, and a bending flange is formed on the upper edge of the side plate, and the bending flange has a space for the sub-boxes located on the upper side. The fixed beam of the box body is plugged into a mating plug-in slot. In the above technical solution, the two sub-boxes arranged in the up and down direction are plugged and matched with the fixed beam through bending and flanging, so that the sub boxes can be closely matched in the up and down direction, improving the reliability of the fit, reducing shaking, etc., and improving The structural strength of the connection between the two sub-boxes meets the design requirements of different batteries. The bending and flanging of the fixed beam can improve the structural strength of the fixed beam and increase the load-bearing capacity of the fixed beam.

In some embodiments, a plurality of the side plates are welded together. In the above technical solution, the overall rigidity and stability of the box can be enhanced, preventing the box from deforming or loosening, thereby ensuring the normal operation and safety of the battery.

In a second aspect, the present application provides an electrical device, which includes the battery in the above embodiment, and the battery is used to provide electrical energy.

The above description is only an overview of the technical solutions of the present application. In order to have a clearer understanding of the technical means of the present application, they can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and understandable. , the specific implementation methods of the present application are specifically listed below.

Description of the drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for the purpose of illustrating preferred embodiments only and are not to be construed as limiting the application. Also, the same parts are represented by the same reference numerals throughout the drawings. In the attached picture:

Figure 1 is a schematic structural diagram of a battery provided by some embodiments of the present application;

Figure 2 is a partial structural diagram of a battery provided by some embodiments of the present application;

Figure 3 is an exploded view of a box provided by some embodiments of the present application;

Figure 4 is an enlarged structural diagram of the area circled A in Figure 3;

Figure 5 is a top view of a box provided by some embodiments of the present application;

Figure 6 is a cross-sectional view along the direction shown on line B-B in Figure 5;

Figure 7 is an enlarged structural schematic diagram of the area circled C in Figure 6;

Figure 8 is a front view of a box provided by some embodiments of the present application;

Figure 9 is a cross-sectional view along the direction shown on line D-D in Figure 8;

Figure 10 is an enlarged structural schematic diagram of the area circled E in Figure 9;

Figure 11 is a schematic diagram of a vehicle provided by some embodiments of the present application.

Reference signs:

Battery 1000, electrical device 2000,

Box 100, sub-box 101, battery cell 200, mounting plate 300, support structure 400,

Side plate 10, first side plate 10a, second side plate 10b, plate body 11, fixed beam 12, first step surface 121, second step surface 122, bending flange 13, plug-in slot 131,

Reinforcing piece 20, reinforcing rib 21.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions 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 Apply for some of the embodiments, not all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

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

Reference in this application to "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

In the description of this application, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection" and "attachment" should be understood in a broad sense. For example, it can be a fixed connection, It can also be detachably connected or integrally connected; it can be directly connected or indirectly connected through an intermediate medium; it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

The term "and/or" in this application is just an association relationship describing related objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, alone There are three situations B. In addition, the character "/" in this application generally indicates that the related objects are an "or" relationship.

In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of simplicity, detailed descriptions of the same components in different embodiments are omitted. 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 and width of the integrated device, are only illustrative illustrations and should not constitute any limitation to the present application. .

"Plural" appearing in this application means two or more (including two).

In this application, a battery refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in this application may include a battery module or a battery pack. Some batteries may include a case for enclosing one or more battery cells or multiple battery modules. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells. Of course, there are also some batteries that do not include the above-mentioned box and are directly installed in the battery installation compartment of the electrical device.

In this application, the battery cells may include lithium ion secondary batteries, lithium ion primary batteries, lithium-sulfur batteries, sodium lithium ion batteries, sodium ion batteries or magnesium ion batteries, etc., which are not limited in the embodiments of this application. The battery cell may be in the shape of a cylinder, a flat body, a rectangular parallelepiped or other shapes, and the embodiments of the present application are not limited to this. Battery cells are generally divided into three types according to packaging methods: cylindrical battery cells, square battery cells and soft-pack battery cells, and the embodiments of the present application are not limited to this.

At present, judging from the development of the market situation, the application of batteries is becoming more and more extensive. Batteries are not only used in energy storage power systems such as hydraulic, thermal, wind and solar power stations, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles and electric cars, as well as in many fields such as military equipment and aerospace. As the application fields of power batteries continue to expand, their market demand is also constantly expanding.

In some electrical devices, batteries are used for power supply. The battery includes a battery box and a battery cell located in the battery box. In order to install the battery cell, a module beam structure is usually set up in the box. The battery cell Or the end plate of the battery pack is supported on the module beam.

In related technologies, module beam structures are mainly connected to the battery box by welding, bonding or bolting. The welded, bonded or bolted parts of the battery box are easily deformed and cracked, resulting in very low strength. It is difficult to guarantee; moreover, as the size of the battery increases, the number and weight of the battery cells continue to increase, and the force of the battery cells can easily cause the connection between the module beam and the box to deform and crack, leading to the failure of the module beam, that is, welding The strength and bolting strength are limited. For some batteries with higher strength requirements, it is difficult to meet their structural strength requirements.

Based on this, this application proposes a battery 1000, including: a battery cell 200 and a box 100. The box 100 includes a plurality of side plates 10. At least one side plate 10 includes a plate body 11 and a fixed beam 12. The fixed beam 12 The fixed beam 12 is disposed on the edge of the plate body 11 and protrudes toward the internal space of the box 100. The fixed beam 12 can support at least part of the battery cells 200 along the first direction. The plate body 11 and the fixed beam 12 are integrally formed parts.

In the technical solution of the embodiment of the present application, the side plate 10 is configured to include a plate body 11 and a fixed beam 12 , so that the fixed beam 12 supporting the battery cell 200 is directly formed on the plate body 11 , thereby improving the efficiency of the fixed beam 12 The structural strength of the connection with the plate body 11 reduces the probability that the force of the battery cell 200 acting on the fixed beam 12 will disconnect the fixed beam 12 and the plate body 11; the fixed beam 12 is integrated with the plate body 11 Compared with the support structure 400 welded to the inside of the side plate 10, the force exerted by the battery cells 200 on the fixed beam 12 does not need to be transmitted to the plate body 11 through the welding points, thereby increasing the durability of the box 100. The carrying capacity can thereby increase the capacity of the battery cell 200 and meet the structural strength requirements of different forms of batteries 1000.

The battery 1000 disclosed in the embodiment of the present invention can be used in, but is not limited to, the electrical device 2000 such as a vehicle, ship or aircraft. The battery 1000 disclosed in the present invention can be used to form the power source of the electrical device 2000 system to improve the safety and reliability of the electrical device 2000.

For example, the electrical device 2000 disclosed in the embodiment of the present invention may be, but is not limited to, a vehicle, a ship, a spacecraft, an electric toy, an electric tool, etc. Vehicles can be fuel vehicles, gas vehicles, new energy vehicles, or rail vehicles. New energy vehicles can be pure electric vehicles, hybrid vehicles, or extended-range vehicles; space vehicles include aircraft, rockets, space shuttles, and spacecrafts, etc. etc.; electric toys include fixed or mobile electric toys, such as game consoles, electric vehicle toys, electric ship toys and electric airplane toys, etc.; electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools and railways Use power tools such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, planers, etc.

Next, with reference to the accompanying drawings, a battery 1000 according to an embodiment of the present invention is described.

Please refer to Figures 1 to 10 to describe the battery 1000 provided by some embodiments of the present application.

As shown in Figures 1 to 7, according to some embodiments of the present invention, a battery 1000 includes: a battery cell 200 and a box 100. The box 100 includes a plurality of side plates 10, and at least one side plate 10 includes a plate body 11 and a fixed beam 12. The fixed beam 12 is provided at the edge of the plate body 11, and the fixed beam 12 protrudes toward the internal space of the box 100. The fixed beam 12 is used to support at least part of the battery cells 200 along the first direction. The plate body 11 and the fixed beam 12 are integrally formed parts.

As shown in FIG. 1 , the box 100 includes a plurality of side plates 10 . The structures of the plurality of side plates 10 can be the same to facilitate the manufacturing and molding of the side plates 10 . The structures of the plurality of side plates 10 can also be different to facilitate the passage of multiple side plates 10 . The side panels 10 are spliced into different shapes to meet different design needs.

As shown in FIG. 2 , a battery cell 200 refers to the smallest unit that constitutes a battery. For example, the battery cell 200 may include a casing, an electrode assembly, and an electrolyte. The casing is used to accommodate the electrode assembly and the electrolyte. The electrode assembly consists of a positive electrode piece, a negative electrode piece and an isolation film. The battery cells mainly rely on the movement of metal ions between the positive electrode plate and the negative electrode plate to work; the battery 1000 can be equipped with multiple battery cells 200, and the multiple battery cells 200 are connected in series, parallel or mixed through electrical connectors .

As shown in Figures 2, 4 and 7, the side plate 10 includes a plate body 11 and a fixed beam 12. The plate body 11 is a plate-shaped structure. The plate body 11 is located on one side of the battery cell 20. The fixed beam 12 is arranged on the plate. The edge of the body 11, and the fixing beam 12 protrudes toward the internal space of the box 100. The first direction is the up and down direction as shown in Figure 2. In the up and down direction, the fixing beam 12 can support the battery cell 200. , so that the battery cell 200 is stabilized in the box 100, wherein the battery cell 200 can be supported as a whole on the fixed beam 12 to improve the fixing effect of the battery cell 200. The battery cell 200 can also be the fixed beam of the battery cell 200. A part is supported on the fixed beam 12 , for example, the edge of the battery cell 200 is supported on the fixed beam 12 .

As shown in Figures 2, 4 and 7, the plate body 11 and the fixed beam 12 are integrally formed parts. The fixed beam 12 is directly connected to the edge of the plate body 11. The fixed beam 12 and the plate body 11 form an integral part, so that each Each of the side panels 10 can be directly processed and formed using a certain process, which simplifies the manufacturing and assembly process and improves the structural strength and stability.

In the technical solution of the embodiment of the present application, the side plate 10 is configured to include a plate body 11 and a fixed beam 12 , so that the fixed beam 12 supporting the battery cell 200 is directly formed on the plate body 11 , thereby improving the efficiency of the fixed beam. The structural strength of the connection between 12 and the plate body 11 reduces the probability that the force of the battery cell 200 acting on the fixed beam 12 will disconnect the fixed beam 12 and the plate body 11; the fixed beam 12 and the plate body 11 In the integrated design, compared with the support structure 400 welded to the inside of the side plate 10 , the force exerted by the battery cells 200 on the fixed beam 12 does not need to be transmitted to the plate body 11 through the welding points, thereby increasing the number of boxes 100 The load-bearing capacity of the battery cell 200 can be increased to meet the structural strength requirements of different types of batteries 1000.

As shown in Figure 2, in some embodiments, the box 100 further includes: a reinforcing member 20. The reinforcing member 20 is disposed in the fixed beam 12, and the reinforcing member 20 extends along the extension direction of the fixed beam 12. The reinforcing member 20 is connected with the fixed beam 12. Beam 12 is fixedly connected.

As shown in Figure 2, the fixed beam 12 is formed with a cavity, and the reinforcing member 20 is located in the cavity of the fixed beam 12. The fixed beam 12 extends along the left and right directions. Correspondingly, the reinforcing member 20 can also extend along the left and right directions, and strengthen the The member 20 is connected to the fixed beam 12. By adding the reinforcing member 20 as a structural member, the structural strength of the fixed beam 12 can be improved. The reinforcing member 20 can be an integral member, or it can be provided with multiple components inside the fixed beam 12. There is a reinforcing member 20. The reinforcing member 20 can be a rib structure, a solid structure such as a square or a circle, or a hollow structure.

In the above technical solution, by embedding the reinforcement 20 in the fixed beam 12, the stiffness and strength of the fixed beam 12 can be improved, thereby improving the overall structural strength and meeting the structural strength requirements of different forms of batteries 1000; and the reinforcement 20 is provided on the fixed beam 12. The inside of the beam 12 does not occupy additional space, reducing the impact on the energy density of the battery 1000.

As shown in Figure 2, in some embodiments, the reinforcement 20 is provided with a hollow cavity.

As shown in Figure 2, the reinforcing member 20 forms an annular structure, thereby forming a hollow cavity in the middle of the reinforcing member 20. Of course, the reinforcing member 20 can also be a structure with one end open and one end closed, thereby forming a hollow cavity with one end open. The design can reduce the weight of the reinforcement 20 while maintaining sufficient strength and stability.

In the above technical solution, by arranging the reinforcing member 20 to have a hollow structure, on the basis of enhancing the structural strength of the fixed beam 12, the weight of the overall structure can be reduced to meet the lightweight design requirements.

As shown in Figure 10, in some embodiments, reinforcing ribs 21 are provided in the hollow cavity.

As shown in Figure 10, the reinforcing rib 21 has a rib structure. The extending direction of the reinforcing rib 21 is the same as the extending direction of the reinforcing member 20. Both sides of the reinforcing rib 21 can be fixedly connected to the reinforcing member 20, thereby improving the strength of the reinforcing member 20. The structural strength can reduce the probability of the reinforcement 20 being extruded and deformed when impacted by external forces, thus improving the load-bearing capacity of the fixed beam 12 and improving the support and protection effect for the battery cell 200. Among them, the reinforcement 21 can be one, or There may be a plurality of them arranged at intervals. The plurality of reinforcing ribs 21 may be arranged at intervals along the extension direction of the reinforcement member 20 (the left-right direction as shown in Figure 2), or they may be arranged along the extension direction perpendicular to the reinforcement member 20 (as shown in Figure 10). arranged at intervals in the front-to-back direction as shown).

In the above technical solution, by arranging the reinforcing ribs 21 in the hollow cavity of the reinforcing member 20, the strength of the overall structure can be further improved, while reducing the probability of a significant increase in the weight of the overall structure, thereby meeting the lightweight design requirements.

As shown in Figure 10, in some embodiments, the reinforcing ribs 21 are arranged along the first direction.

As shown in Figures 2 and 10, a reinforcing rib 21 is provided in the hollow cavity of the reinforcing member 20. The reinforcing rib 21 is arranged in the up and down direction. The upper edge of the reinforcing rib 21 is connected to the reinforcing member 20. The lower side of the reinforcing rib 21 The edge is also connected to the reinforcement 20. Since the force of the battery cell 200 can act on the fixed beam 12 in the first direction, by arranging the reinforcing ribs 21 up and down, the load-bearing capacity of the fixed beam 12 in the first direction can be improved; Of course, multiple reinforcing ribs 21 may also be provided in the hollow cavity of the reinforcing member 20, and each reinforcing rib 21 is arranged in the up and down direction.

In the above technical solution, by arranging the reinforcing ribs 21 along the first direction, the load-bearing capacity of the fixed beam 12 in the first direction can be improved, and at least some of the battery cells 200 are supported on the fixed beam 12 along the first direction. Therefore, This can improve the support effect for the battery cell 200 and improve the stability of the overall structure.

As shown in FIGS. 2 to 10 , in some embodiments, the hollow cavity extends along the extension direction of the fixed beam 12 , and the reinforcing ribs 21 extend along the extension direction of the fixed beam 12 .

As shown in Figure 2, the fixed beam 12 extends along the left and right directions. As shown in Figures 8-10, the reinforcing member 20 extends along the left and right directions. The reinforcing member 20 is annular and forms a hollow cavity extending along the left and right directions, so that the hollow cavity is connected with the fixed beam. The extending direction of the beam 12 is the same, and the reinforcing member 21 also extends in the left and right directions to reduce the weight of the reinforcing member 20 as much as possible. At the same time, the structural strength of the reinforcing member 20 is further improved through the provided reinforcing ribs 21 to meet the requirements of lightweight and high strength. design requirements.

In the above technical solution, by arranging the hollow cavity and the reinforcing ribs 21 as structures extending along the extension direction of the fixed beam 12, the weight of the reinforcing member 20 can be reduced, the structural strength of the reinforcing member 20 can be improved, and the overall structural strength and stability.

As shown in Figures 9 and 10, in some embodiments, the reinforcement 20 is integrally formed.

That is, the reinforcing member 20 and the reinforcing rib 21 here can be integrally formed, and can be manufactured by injection molding or 3D printing.

In the above technical solution, the reinforcement 20 does not need to be assembled, which can improve production efficiency, improve the structural strength and stability of the reinforcement 20, and reduce manufacturing costs and processing time.

In some embodiments, the reinforcement 20 is welded to the fixed beam 12 .

As shown in Figures 2 and 10, the reinforcing member 20 is roughly formed into a structural member with a square cross-section. The structural dimensions of the reinforcing member 20 are approximately the same as the inner surface of the fixed beam 12, so that the reinforcing member 20 fits the inner wall surface of the fixed beam 12. At the same time, the fitting surface can be welded by welding parts, which on the one hand can improve the reliability of the connection between the reinforcement 20 and the fixed beam 12 and on the other hand can improve the structural strength of the fixed beam 12, wherein each outer side of the reinforcement 20 They can all be welded to the fixed beam 12, or part of the outer surface can be welded to the fixed beam 12. The reinforcing member 20 can also be in the form of a trapezoidal or circular cross-section.

In the above technical solution, by welding the reinforcing member 20 to the fixed beam 12, there is sufficient connection between the reinforcing member 20 and the fixed beam 12, thereby improving the reliability of the connection between the reinforcing member 20 and the fixed beam 12, thereby improving the overall structural strength. .

As shown in Figure 2, in some embodiments, the battery cells 200 are multiple and arranged in groups. The battery 1000 also includes a mounting plate 300. The mounting plate 300 is located at the end of the multiple battery cells 200 along the arrangement direction. The plate 300 is connected to the fixed beam 12 .

As shown in Figure 2, the battery 1000 has a plurality of battery cells 200. The plurality of battery cells 200 can be arranged in the front-to-back direction to form a group, that is, forming a battery pack. The battery 1000 can have one group of battery packs or multiple battery packs. Assembling a battery pack, each battery pack has a mounting plate 300 at its end. The mounting plate 300 can strengthen the fixation of multiple battery cells 200, improve the stability of the battery pack, and facilitate the assembly of the battery pack. The mounting plate 300 can be connected with The fixed beam 12 is connected, for example, by opening perforations on the mounting plate 300 and the fixed beam 12, and fasteners passing through the perforations to connect the mounting plate 300 and the fixed beam 12.

In the above technical solution, the battery cells 200 are arranged to form a group of 1000 batteries, and a mounting plate 300 is provided at the end of each group. The mounting plate 300 is connected to a fixed beam 12, so that the battery cells can be maintained. The position and stability of the battery cells 200 can make the battery cells 200 compactly arranged, increase the capacity of the battery cells 200, and improve the stability of the entire structure through the cooperation of the mounting plate 300 and the fixed beam 12; in addition, the mounting plate 300 The arrangement can also facilitate the assembly and disassembly of the battery cells 200 in the box 100 .

As shown in FIGS. 2 to 7 , in some embodiments, the battery 1000 further includes a support structure 400 . The support structure 400 is provided at the bottom of the battery cell 200 , and the support structure 400 is connected to the fixed beam 12 .

As shown in Figure 2, the bottom of the battery cell 200 is disposed on the support structure 400. The support structure 400 can be a plate-shaped structure, which can support the battery cell 200 while reducing the space occupied by the support structure 400, wherein, The support structure 400 can be connected to the fixed beam 12. Here, the edge of the support structure 400 can be overlapped on the fixed beam 12, and the support structure 400 can be connected to the fixed beam 12. At the same time, by opening perforations on the support structure 400 and the fixed beam 12, The connection between the support structure 400 and the fixed beam 12 is carried out by passing through the fasteners through the holes.

In the above technical solution, the support structure 400 is provided at the bottom of the battery cell 200 and connected to the fixed beam 12 . The support structure 400 can support the battery cells 200, disperse the weight of the battery cells 200, protect the battery cells 200 to a certain extent, and improve the overall safety and stability; the support structure 400 is connected to the fixed beam 12 , the stability of the overall structure can be further increased to reduce the impact of vibration and oscillation on the battery cell 200 in different environments.

As shown in Figures 2 and 10, in some embodiments, the battery cells 200 are multiple and arranged in groups. The battery 1000 also includes a support structure 400 and a mounting plate 300. The mounting plate 300 is located along the multiple battery cells 200. At the end of the arrangement direction, the fixed beam 12 includes a first step surface 121 and a second step surface 122. The first step surface 121 and the second step surface 122 are perpendicular to the first direction. The first step surface 121 is smaller than the second step surface 122. Closer to the outside of the box 100, the mounting plate 300 is connected to the first step surface 121, and the support structure 400 is connected to the second step surface 122.

As shown in Figure 2, the battery 1000 has a plurality of battery cells 200. The plurality of battery cells 200 can be arranged in the front-to-back direction to form a group, that is, forming a battery pack. The battery 1000 can have one group of battery packs or multiple battery packs. When assembling a battery pack, each battery pack has a mounting plate 300 at its end. The mounting plate 300 can strengthen the fixation of multiple battery cells 200, improve the stability of the battery pack, and facilitate the assembly of the battery pack.

As shown in FIGS. 2 and 10 , the bottom of the battery cell 200 is disposed on the support structure 400 , and the support structure 400 can support the battery cell 200 .

As shown in Figure 10, the fixed beam 12 includes two parts. The upper surfaces of the two parts form a first step surface 121 and a second step surface 122 respectively. The heights of the two step surfaces are different, and the height direction here is the first direction. The two step surfaces are respectively perpendicular to the first direction, and the first step surface 121 is located outside the second step surface 122 .

The mounting plate 300 can be installed on the first step surface 121 of the fixed beam 12 , and the mounting plate 300 can be fixedly connected to the first step surface 121 , for example, by opening perforations on the mounting plate 300 and the first step surface 121 , and through fasteners. The connection between the mounting plate 300 and the fixed beam 12 is carried out by providing through-holes.

The support structure 400 can be installed on the second step surface 122 of the fixed beam 12 , and the support structure 400 can be fixedly connected to the second step surface 122 , for example, by opening perforations on the support structure 400 and the second step surface 122 , or through fasteners. The connection between the mounting plate 300 and the fixed beam 12 is carried out by providing through-holes.

In the above technical solution, by arranging the fixed beam 12 in the form of two step surfaces, the mounting plate 300 is connected to the first step surface 121, and the support structure 400 is connected to the second step surface 122, so that the support structure 400 and the installation The plates 300 are all connected to the fixed beams 12, which can not only improve the stability and structural strength of the battery 1000, but also enable the support structure 400 and the mounting plate 300 to more effectively support and fix the battery cells 200, reducing the need for high loads and complex environments. vibration and damage.

In some embodiments, support structure 400 includes thermal management components.

The thermal management components here can be water-cooled plates, radiators, cooling fans, heat pipes, etc. Through these devices, excessive heat generated by the battery 1000 can be quickly and effectively dispersed to avoid problems that affect the performance and safety factor of the battery 1000 due to high temperatures.

In the above technical solution, by arranging thermal management components on the support structure 400, on the basis of supporting the battery cells 200, it can not only help control the temperature of the battery cells 200, extend the service life of the battery 1000, but also improve the Overall energy efficiency of the Battery 1000 system.

As shown in FIGS. 8 to 10 , in some embodiments, when projected along the first direction, the projection of the reinforcement 20 is completely located within the projection of the first step surface 121 .

As shown in FIGS. 8 to 10 , in the left-right direction, the length dimension of the reinforcement member 20 is less than or equal to the length dimension of the first step surface 121 , and in the front-to-back direction, the width dimension of the reinforcement member 20 is smaller than the first step surface 121 . The width dimension, so that the reinforcement 20 corresponds to the first step surface 121 of the fixed beam 12, improves the structural strength of the first step surface 121 of the fixed beam 12, thereby improving the support effect of the mounting plate 300, and at the same time, it can The entire Battery 1000 system is more compact and uses space more efficiently.

In the above technical solution, the reinforcing member 20 partially corresponds to the first step surface 121 of the fixed beam 12, so that the reinforcing member 20 can be in contact with the position corresponding to the first step surface 121, and the first step surface of the fixed beam 12 can be improved. The structural strength at 121 improves the supporting effect of the mounting plate 300 and improves the stability and structural strength of the battery 1000.

In some embodiments, the side panel 10 is a sheet metal part, and the fixed beam 12 is formed on the side panel 10 through a rolling process.

Specifically, the side plate 12 is formed by roll pressing, and is laterally bent through multiple passes of rollers of different shapes to finally form a fixed beam 12 with a specific cross-sectional shape. That is, the fixed beam 12 is a multi-section bending structure, and the bent end of the fixed beam 12 is It can extend to the plate body 10, and the gap between the two is welded by welding parts to improve the stability of the fixed beam 12.

In the above technical solution, the entire side plate 10 is formed by a rolling process to form the fixed beam 12 and the plate body 11, which can improve the structural strength of the side plate 10 and reduce the probability of fracture and separation of the fixed beam 12 and the plate body 11. At the same time, the sheet metal The parts have the advantages of high processing precision and strong adaptability, and can better meet the manufacturing needs of different batteries 1000.

In some embodiments, the battery cell 200 extends along the arrangement direction of the two side plates 10 , and both ends of the battery cell 200 are respectively supported on the fixed beams 12 of the two side plates 10 .

The battery cells 200 are arranged in the front and rear direction, and the two front and rear side plates 10 respectively have inwardly protruding fixed beams 12. The front and rear ends of the battery cells 200 can be directly supported on the fixed beams 12, eliminating the need for structures such as the mounting plate 300. , reduce costs, wherein the battery cells 200 here can be blade batteries.

In the above technical solution, the battery cell 200 is installed and fixed by supporting both ends of the battery cell 200 on the two fixed beams 12 respectively. This eliminates the need for structures such as the mounting plate 300 and the battery cell 200 is directly installed on the The fixed beam 12 can facilitate the close arrangement of the batteries 1000, increase the capacity of the battery cells 200, and increase the energy density of the batteries 1000.

As shown in FIGS. 1 and 3 , in some embodiments, the box 100 includes a plurality of sub-boxes 101 , each sub-box 101 includes a plurality of side panels 10 , and at least two oppositely arranged sides of each sub-box 101 . A fixed beam 12 is formed on the lower edge of the plate 10 .

As shown in Figure 3, the sub-box 101 includes two oppositely arranged first side plates 10a. The lower edges of the two first side plates 10a are respectively formed with fixed beams 12. The two first side plates 10a face each other in the front and rear direction. The arrangement is such that the front and rear ends of the battery cell 200 or the battery pack are supported on the fixed beam 12, thereby achieving the fixation of the battery cell 200 or the battery pack, with good structural stability and strong load-bearing capacity.

In the above technical solution, the fixed beams 12 are formed on the lower edges of the two oppositely arranged side plates 10 of the sub-box 101, so that the battery cells 200 can be supported on the fixed beams 12, thereby realizing the internal control of each sub-box 101. The battery cells 200 are supported and fixed.

As shown in Figures 3 and 4, in some embodiments, at least two sub-boxes 101 are arranged in the up and down direction, and a bending flange 13 is formed on the upper edge of the side panel 10. The bending flange 13 has a position for The fixed beam 12 of the upper sub-box 101 is plugged into the mating plug-in slot 131 .

As shown in Figure 4, among two adjacent sub-boxes 101 arranged up and down, the upper sub-box 101 has a first side wall 10a, the upper sub-box 101 has a second side wall 10b, and the upper sub-box 101 has a second side wall 10b. The lower edge of one side wall 10a has a fixed beam 12, and the upper edge of the first side wall 10a is formed with a bending flange 13. Here, the bending flange 13 and the fixed beam 12 are both integrally formed on the board body of the first side wall 10a. 11, the bent flange 13 has a plug-in slot 131, and the lower edge of the second side wall 10b has a fixed beam 12. When two adjacent sub-boxes 101 are matched, the fixed beam 12 on the lower edge of the second side wall 10b can be After being plugged into the plug-in slot 131 so that the first side wall 10a and the second side wall 10b are plug-fitted, the bent flange 13 can wrap a part of the fixing beam 12 .

In addition, after the first side wall 10a and the second side wall 10b are plugged and matched in place, the welding fit can also be performed through welding parts to improve the reliability of the fit of the two sub-boxes 101.

In the above technical solution, the two sub-boxes 101 arranged in the up-and-down direction are plug-fitted with the fixed beam 12 through the bent flange 13, so that the sub-boxes 101 can be closely matched in the up-down direction, thereby improving the reliability of the fit and reducing the cost of the fit. Shaking, etc., improves the structural strength of the connection between the two sub-boxes 101 to meet the design requirements of different batteries 1000. The bending flange 13 wrapping the fixed beam 12 can improve the structural strength of the fixed beam 12 and increase the load-bearing capacity of the fixed beam 12.

In some embodiments, multiple side plates 10 are welded together.

The multiple side plates 10 of each sub-box 101 are connected by welding, which facilitates the cooperation of the multiple side plates 10 and improves the structural strength of the entire sub-box 101; in addition, the two adjacent sub-boxes 101 The side panels 10 can be connected by welding. For example, after the fixed beam 12 and the insertion slot 131 of the bending flange 13 are inserted into place, they are connected through welding parts at the interface, which improves the stability of the two adjacent sub-boxes. The reliability of the 101 connection and the structural strength of the connection reduce the probability that multiple sub-boxes 101 are disengaged when the battery 1000 is transported or assembled.

In the above technical solution, the overall rigidity and stability of the box 100 can be enhanced, preventing the box 100 from deforming or loosening, thereby ensuring the normal operation and safety of the battery 1000.

Referring to FIG. 11 , an electrical device 2000 according to a second embodiment of the present invention includes a battery 1000 according to the first embodiment of the present invention. The battery 1000 is used to provide electrical energy to the electrical device 2000 . Therefore, by using the battery 1000 described above,

Alternatively, as shown in FIG. 11 , when the battery 1000 is used in a vehicle, the battery 1000 may be disposed at the bottom, head, or tail of the vehicle. The battery 1000 may be used to power a vehicle. For example, the battery 1000 may 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 1000 to provide power to the motor, for example, for starting, navigating and driving the vehicle to meet its power requirements.

A battery 1000 and a vehicle equipped with the battery 1000 according to a specific embodiment of the present invention will be described below with reference to the accompanying drawings.

Referring to FIG. 11 , the battery 1000 is disposed at the bottom of the vehicle and connected to the bottom longitudinal beam of the vehicle. Referring to FIGS. 1 to 10 , the battery 1000 includes a battery box 100 and a plurality of batteries disposed in the battery box 100 . Cell 200, the bottoms of the plurality of battery cells 200 are disposed on the support structure 400, and the plurality of battery cells 200 can form a plurality of battery packs, and the ends of the battery packs have mounting plates 300.

As shown in Figure 1, the box 100 includes three sub-boxes 101. Each sub-box 101 includes a plurality of side plates 10. The plurality of side plates 10 are connected by welding, wherein two sub-boxes 101 are located in another sub-box. above 101.

As shown in Figure 3, the upper sub-box 101 includes two oppositely arranged first side plates 11b. The first side plates 11b include an integrally formed plate body 11 and a fixed beam 12. The fixed beam 12 is provided on the plate body 11. , and the fixing beam 12 protrudes toward the inner space of the box 100 . When the battery cell 100 is installed, the mounting plate 300 or the support structure 400 or both ends of the battery cell 100 are installed on the fixed beam 12 .

As shown in Figures 9 and 10, the sub-box 101 located below includes two oppositely arranged first side plates 11a. The first side plates 11a include an integrally formed plate body 11 and a fixed beam 12. The fixed beam 12 is located on The lower edge of the board body 11, and the fixed beam 12 protrudes toward the internal space of the box 100. The fixed beam 12 includes two parts, and the upper surfaces of the two parts respectively form a first step surface 121 and a second step surface 122. The first step surface The surface 121 is located outside the second step surface 122 (that is, the side close to the plate body 11 ). In the up-down direction, the height of the first step surface 121 is higher than the height of the second step surface 122 .

As shown in Figure 10, a reinforcing member 20 is provided in the fixed beam 12. The reinforcing member 20 is positioned correspondingly to the first step surface 121. The reinforcing member 20 is provided with a hollow cavity. Reinforcing ribs 21 are provided in the hollow cavity. The reinforcing ribs 21 are arranged along the upper and lower edges. direction, the upper edge of the reinforcing rib 21 is connected to the reinforcing member 20, and the lower edge of the reinforcing rib 21 is also connected to the reinforcing member 20. The reinforcing member 20 and the reinforcing rib 21 extend along the extension direction of the fixed beam 12, and the reinforcing member 20 Welded with fixed beam 12.

As shown in Figure 2, when the battery cell 100 is installed, the installation plate 300 is installed on the first step surface 121 of the fixed beam 12, and the installation plate 300 is fixedly connected to the first step surface 121; the support structure 400 is installed on the fixed beam 12 On the second step surface 122 , the support structure 400 is fixedly connected to the second step surface 122 .

In the above technical solution, by arranging the side plate 10 to include the plate body 11 and the fixed beam 12, the fixed beam 12 supporting the battery cell 200 is directly formed on the plate body 11, which improves the connection between the fixed beam 12 and the plate body. 11 The structural strength of the connection increases the load-bearing capacity of the box 100; by embedding reinforcements 20 in the fixed beam 12, the stiffness and strength of the fixed beam 12 can be improved, thereby improving the overall structural strength to meet the structural strength of different forms of batteries 1000 requirements; and the reinforcement 20 is arranged inside the fixed beam 12 without occupying additional space, thereby reducing the impact on the energy density of the battery 1000.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present application. The scope shall be covered by the claims and description of this application. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any way. The application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (19)

1. A battery, comprising:

a battery cell;

the box body comprises a plurality of side plates, at least one side plate comprises a plate body and a fixed beam, the fixed beam is arranged at the edge of the plate body and protrudes towards the inner space of the box body, the fixed beam is used for supporting at least part of the battery cells along a first direction,

The plate body and the fixed beam are integrally formed.

2. The battery of claim 1, further comprising: the reinforcing piece is arranged in the fixed beam and extends along the extending direction of the fixed beam, and the reinforcing piece is fixedly connected with the fixed beam.

3. The battery of claim 2, wherein the reinforcement is provided with a hollow cavity.

4. A battery according to claim 3, wherein the hollow cavity is provided with reinforcing ribs.

5. The battery of claim 4, wherein the ribs are disposed along the first direction.

6. The battery according to claim 4, wherein the hollow cavity extends in an extending direction of the fixing beam, and the reinforcing rib extends in the extending direction of the fixing beam.

7. The battery of claim 6, wherein the reinforcement is integrally formed.

8. The battery of claim 2, wherein the reinforcement is welded to the fixed beam.

9. The battery according to claim 2, wherein the battery cells are plural and arranged in a group, the battery further comprising a mounting plate at an end of the plural battery cells in the arrangement direction, the mounting plate being connected to the fixing beam.

10. The battery of claim 2, further comprising a support structure disposed at a bottom of the battery cell and connected to the fixed beam.

11. The battery of claim 2, wherein the battery cells are a plurality of and arranged in a group, the battery further comprising a support structure and a mounting plate, the mounting plate being located at an end of the plurality of battery cells in the arrangement direction, the fixing beam comprising a first step surface and a second step surface perpendicular to the first direction, the first step surface being closer to an outside of the case than the second step surface, the mounting plate being connected to the first step surface, the support structure being connected to the second step surface.

12. The battery of claim 10, wherein the support structure comprises a thermal management component.

13. The battery of claim 11, wherein the projection of the stiffener is located entirely within the projection of the first step surface, as projected in the first direction.

14. The battery of claim 1, wherein the side plates are sheet metal parts and the fixing beams are formed on the side plates by a rolling process.

15. The battery according to claim 1, wherein the battery cell extends in an arrangement direction opposite to the two side plates, and both ends of the battery cell are supported on the fixing beams of the two side plates, respectively.

16. The battery according to any one of claims 1 to 15, wherein the case includes a plurality of sub cases each including a plurality of the side plates, and lower edges of at least two oppositely disposed side plates of each of the sub cases are formed with the fixing beam.

17. The battery according to claim 16, wherein at least two of the sub-cases are arranged in the up-down direction, and the upper edge of the side plate is further formed with a bent flange having a socket groove for the socket fit of the fixing beam of the sub-case on the upper side.

18. The battery of claim 1, wherein a plurality of said side plates are welded together.

19. An electrical device comprising a battery according to any one of claims 1-18.