CN220753622U - Battery box, battery and electric equipment - Google Patents

Abstract

The application relates to the technical field of battery manufacturing, specifically disclose a battery box, battery and consumer, this battery box includes inner bag subassembly and frame component, and the inner bag subassembly includes inner bag body and first roof beam, and the inner bag body is integrated into one piece structure, and first roof beam sets up the inside of inner bag body, and frame component includes the second roof beam, and frame component has accommodation space, and the inner bag body sets up in accommodation space, and the outside of inner bag body is located to the second roof beam and corresponds the setting with first roof beam, and the inner bag body cooperates with first roof beam and second Liang Aotu respectively. According to the battery box body, the concave-convex matching of the first beam, the inner container body and the second beam is utilized, so that the overall structural strength of the battery box body meets the use requirement, the inner container body is arranged into an integrated structure, the integrated structure is not required to be subjected to sealing processing, and therefore the sealing difficulty of the battery box body during processing can be effectively reduced, and the manufacturing cost of the battery box body can be effectively reduced.

Description

Battery box, battery and electric equipment

Technical Field

The application relates to the technical field of batteries, in particular to a battery box, a battery and electric equipment.

Background

This section provides merely background information related to the present disclosure and is not necessarily prior art.

With the development of new energy, more and more fields adopt new energy as power. The battery is widely applied to the fields of new energy automobiles, consumer electronics, energy storage systems and the like due to the advantages of high energy density, recycling charge, safety, environmental protection and the like.

In the prior art, the battery box body is processed in a welding mode, and the sealing difficulty in the mode of welding the battery box body is high.

Disclosure of Invention

In view of the above problems, the application provides a battery box body, which solves the problem that the sealing difficulty of the existing battery box body processing mode is high.

A first aspect of the present application proposes a battery box comprising:

the liner assembly comprises a liner body and a first beam, wherein the liner body is of an integrated structure, and the first beam is arranged in the liner body;

the frame assembly comprises a second beam, an accommodating space is formed in the frame assembly, the liner body is arranged in the accommodating space, the second beam is arranged on the outer side of the liner body and corresponds to the first beam, and the liner body is matched with the first beam and the second Liang Aotu respectively.

According to the battery box body, the concave-convex matching of the first beam, the inner container body and the second beam is utilized, so that the overall structural strength of the battery box body meets the use requirement, the inner container body is arranged into an integrated structure, the integrated structure is not required to be subjected to sealing processing, and therefore the sealing difficulty of the battery box body during processing can be effectively reduced, and the manufacturing cost of the battery box body can be effectively reduced.

In some embodiments of the present application, a bending structure is formed on the bottom of the liner body, and the bending structure is respectively matched with the first beam and the second Liang Aotu. The bending structure is arranged, so that concave-convex matching among the first beam, the liner body and the second beam is effectively realized, and the overall structural strength of the battery box body can meet the use requirement in a concave-convex matching mode.

In some embodiments of the present application, the bending structure protrudes to one side of the first beam, at least part of the bending structure is inserted into the first beam, and at least part of the second beam is inserted into the bending structure. The bending structure is arranged in the liner body in a protruding mode and is in splicing fit with the first beam, and the splicing structure formed by the bending structure and the first beam is arranged in the liner body, so that the structural strength of the first beam in the liner body can be improved.

In some embodiments of the present application, the bending structure protrudes to one side of the second beam, at least part of the bending structure is inserted into the second beam, and at least part of the first beam is inserted into the bending structure. The bending structure is arranged on the outer surface of the liner body in a protruding mode and is matched with the second beam in a plugging mode, and the bending structure and the second beam form a plugging structure, so that the overall structural strength of the second beam can be improved.

In some embodiments of the present application, the first beam and the liner body are connected by bonding, welding or riveting;

and/or the connection mode between the second beam and the liner body is bonding, welding or riveting.

Through the setting to the connected mode between first roof beam and the inner bag body to can set for the connected mode between the two according to the demand, improve the convenience in the installation. Likewise, the connection mode between the second beam and the liner body can be set according to the requirements through the arrangement of the connection mode between the second beam and the liner body, and convenience in the installation process is improved.

In some embodiments of the present application, the liner body is a plastic or epoxy part;

And/or the first beam is an aluminum profile piece or a thermosetting composite material piece;

and/or, the second beams are all made of steel.

Through setting up the inner bag body to can be convenient for carry out integral type processing to the inner bag body. In addition, set up first roof beam, when making first roof beam have sufficient mechanical properties, can effectively reduce the weight of first roof beam, and then can effectively reduce the weight of battery box.

In some embodiments of the present application, a sinking platform is disposed on an inner peripheral wall of the liner body, and at least one end of the first beam is matched with the sinking platform. The setting sinks the structural strength that the platform can effectively promote the inner bag body, cooperates at least one tip and the heavy platform of first roof beam, can improve joint strength and the stability between first roof beam and the inner bag body.

In some embodiments of the present application, the liner assembly further includes a connection member, and the first beam adjacent to the sinking platform is connected to the sinking platform through at least one connection member in a direction intersecting an extending direction of the first beam. Through setting up the connecting piece to utilize the connecting piece to link to each other with sinking platform with the adjacent first roof beam of platform that sinks of inner bag body, thereby make the integrated configuration that first roof beam and inner bag body formed have sufficient intensity, and then make the battery box satisfy the demand of using.

In some embodiments of the present application, the number of the first beams is a plurality, all the first beams are arranged in parallel and at intervals in the inner container body, and the number of the second beams is consistent with the number of the first beams and is arranged in one-to-one correspondence with the first beams. The battery box comprises a plurality of first beams and a plurality of second beams corresponding to the first beams one by one, so that the overall structural strength of the battery box body can be further improved, and the battery box body can meet the use requirement.

In some embodiments of the present application, the frame assembly further includes a frame body and a bottom plate connected to the frame body, the frame body and the bottom plate enclosing to form the accommodating space, and the second beam is at least connected to the frame body. The frame and the bottom plate surround to form the accommodating space, so that the frame is simple in structure, convenient to process and manufacture and capable of effectively reducing the processing cost.

In some embodiments of the present application, at least one end of the second beam is in a plug-in fit with the frame. At least one end of the second beam is in plug-in connection with the frame body, so that the connection strength between the second beam and the frame body can be increased, the overall structural strength of the frame assembly can be effectively enhanced, and the battery box body can be further enabled to effectively meet the use requirement.

In some embodiments of the present application, the connection manner of the second beam and the plugging position of the frame body is welding, bonding, riveting, screw connection or clamping. Through the setting of the connected mode to the grafting position of second roof beam and framework to can set for the connected mode between the two according to the demand, improve the convenience in the installation.

In some embodiments of the present application, the frame body and the second beam are made of steel, and the second beam is welded and fixed to the plugging position of the frame body. Set up into steelwork and connect fixedly through welded mode between framework and the second roof beam to can improve the bulk strength of hookup location, make the bulk structural strength and the dominant frequency of battery box can be promoted effectively.

In some embodiments of the present application, a reinforcing structure is provided on the base plate, and the reinforcing structure is disposed to intersect with the second beam. Through setting up additional strengthening to improved the structural strength of bottom plate, and then also made the overall structural strength and the dominant frequency of battery box can be promoted effectively.

In some embodiments of the present application, the reinforcing structure comprises at least one reinforcing rib. The reinforcing rib has a simple structure, is convenient to process, and can effectively reduce the manufacturing cost.

In some embodiments of the present application, the connection manner between the liner body and the frame body is bolting, riveting, bonding, clamping or welding;

and/or the connection mode between the bottom plate and the liner body is bonding or welding;

and/or the connection mode between the bottom plate and the frame body is bolt connection, riveting, bonding, clamping or welding.

Through the setting of the connected mode between inner bag body and the framework to can set for the connected mode between the two according to the demand, improve the convenience in the installation. Likewise, the connection mode between the bottom plate and the liner body can be set according to the requirements through the arrangement of the connection mode between the bottom plate and the liner body, and convenience in the installation process is improved. Similarly, the connection mode between the bottom plate and the frame body can be set according to the requirements, and convenience in the installation process is improved.

A second aspect of the present application proposes a battery comprising:

according to the battery case as described above;

and the battery assembly is arranged in the battery box body.

A third aspect of the present application proposes a powered device comprising a battery according to the above.

The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.

Drawings

FIG. 1 schematically illustrates a schematic structural view of a vehicle according to one embodiment of the present application;

fig. 2 is a schematic view of the structure of the battery shown in fig. 1;

fig. 3 is a schematic view of the structure of the battery case shown in fig. 2;

FIG. 4 is a cross-sectional view of A-A of the battery case shown in FIG. 3;

FIG. 5 is an enlarged schematic view of the portion C of the structure shown in FIG. 4;

FIG. 6 is a cross-sectional view of B-B of the pressure relief device shown in FIG. 3;

FIG. 7 is an enlarged schematic view of the portion D of the structure shown in FIG. 6;

fig. 8 is an exploded view of the battery case shown in fig. 3.

The reference numerals are as follows:

1000. a vehicle;

100. a battery;

101. a battery case;

10. a liner assembly;

11. a liner body; 111. a bending structure; 112. a sinking platform; 12. a first beam; 13. a connecting piece;

20. A frame assembly;

21. a second beam; 22. a frame; 23. a bottom plate; 24. an accommodating space;

102. a battery assembly;

200. a controller;

300. a motor.

Detailed Description

Embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical solutions of the present application, and thus are only examples, and are not intended to limit the scope of protection of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first," "second," etc. are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein 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 present application. The appearances of such phrases 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. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, which means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural sheets" refers to two or more (including two).

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the embodiments of the present application and for simplifying the description, rather than indicating or implying that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

Currently, the more widely the battery is used in view of the development of market situation. The battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles, and the like, as well as a plurality of fields such as military equipment, aerospace, and the like. With the continuous expansion of the battery application field, the market demand thereof is also continuously expanding.

The battery has the battery box, and the battery box needs to satisfy the leakproofness requirement at the in-process of processing, and current battery box is processed through welded mode, however, the sealed degree of difficulty of the mode of welding processing battery box is great.

In this application, set up battery box into including inner bag subassembly and frame subassembly, wherein, the inner bag subassembly includes inner bag body and first roof beam, and the inner bag body is integral type structure, and first roof beam sets up the inside of inner bag body, and the frame subassembly includes accommodation space and second roof beam, and the inner bag body sets up in accommodation space, and the outside of inner bag body is located to the second roof beam and corresponds the setting with first roof beam, and unsmooth cooperation in proper order is located to second roof beam, inner bag body and first roof beam. Utilize unsmooth cooperation of first roof beam, inner bag body and second roof beam for the overall structure intensity of battery box satisfies the user demand, sets up the inner bag body into integral type structure, and integral type structure need not to seal processing, thereby can effectively reduce the battery box sealed degree of difficulty when processing, makes the manufacturing cost of battery box can obtain reducing effectively.

The battery according to the embodiment of the application can be used in electric devices such as vehicles, ships or aircrafts, but is not limited to the use of the battery. A power supply system including a battery cell, a battery, and the like according to the present application, which constitute the power utilization device, may be used.

The electric equipment using the battery as the power supply in the embodiment of the application can be, but is not limited to, a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric automobile, a ship, a spacecraft and the like. Among them, the electric toy may include fixed or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric plane toys, and the like, and the spacecraft may include planes, rockets, space planes, and spacecraft, and the like.

It should be understood that the technical solutions described in the embodiments of the present application are not limited to the above-described batteries and electric devices, but may be applied to all batteries including a case and electric devices using the batteries, but for simplicity of description, the following embodiments are described by taking an electric vehicle as an example.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1000 according to some embodiments of the present application. The vehicle 1000 may be a fuel oil vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or a range-extended vehicle. The battery 100 is provided in the interior of the vehicle 1000, and the battery 100 may be provided at the bottom or the head or the tail of the vehicle 1000. The battery 100 may be used for power supply of the vehicle 1000, for example, the battery 100 may be used as an operating power source of the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, the controller 200 being configured to control the battery 100 to power the motor 300, for example, for operating power requirements during start-up, navigation, and travel of the vehicle 1000.

In some embodiments of the present application, battery 100 may not only serve as an operating power source for vehicle 1000, but may also serve as a driving power source for vehicle 1000, instead of or in part instead of fuel oil or natural gas, to provide driving power for vehicle 1000.

Fig. 2 shows a schematic structural diagram of a battery 100 according to an embodiment of the present application. In fig. 2, the battery 100 may include a plurality of battery packs 102 and a battery case 101, the plurality of battery packs 102 being accommodated inside the battery case 101. The battery case 101 is used to house the battery assembly 102 to reduce the effect of liquids or other foreign matter on the charging or discharging of the battery cells. The battery case 101 may have a simple three-dimensional structure such as a rectangular parallelepiped, a cylinder, or a sphere, or may have a complex three-dimensional structure formed by combining simple three-dimensional structures such as a rectangular parallelepiped, a cylinder, or a sphere. The battery case 101 may be made of an alloy material such as an aluminum alloy or an iron alloy, a polymer material such as polycarbonate or polyisocyanurate foam, or a composite material such as glass fiber and epoxy resin.

To meet different power requirements for use, the battery assembly 102 may include a plurality of battery cells, which refers to the smallest units that make up the battery assembly. Multiple cells may be connected in series and/or parallel via electrode terminals for use in various applications. The battery cells may include, but are not limited to, lithium ion batteries, sodium ion batteries, magnesium ion batteries, and the like. In addition, the shape of the battery cell includes, but is not limited to, a cylindrical shape, a flat shape, a rectangular parallelepiped shape, or other shapes, etc.

In some embodiments of the present application, as shown in fig. 2 to 8, a battery box 101 is provided, the battery box 101 includes a liner assembly 10 and a frame assembly 20, the liner assembly 10 includes a liner body 11 and a first beam 12, the liner body 11 is in an integral structure, the first beam 12 is disposed in the liner body 11, the frame assembly 20 includes a second beam 21, the frame assembly 20 has a receiving space 24, the liner body 11 is disposed in the receiving space 24, the second beam 21 is disposed on the outer side of the liner body 11 and is disposed corresponding to the first beam 12, and the liner body 11 is respectively in concave-convex fit with the first beam 12 and the second beam 21.

The inner bag body 11 is used for holding the battery pack 102 of the battery 100, and the inner bag body 11 is integrated into a whole structure, namely the inner bag body 11 is formed by processing as a whole, and the inner bag body 11 does not need to be assembled in a welding mode or the like. Meanwhile, residues such as welding slag and the like are easy to appear in the existing welding process, the residues are easy to have adverse effects on the battery assembly 102 (such as puncturing the battery assembly 102 and the like), and the inner container with the integrated structure can eliminate the residues and reduce the adverse effects on the battery assembly 102.

The first beam 12 is disposed in the liner body 11 (the liner body 11 can completely wrap the first beam 12, the liner body 11 can also wrap a portion of the first beam 12), the second beam 21 is disposed outside the liner body 11, and the second beam 21 and the first beam 12 are correspondingly disposed, the second beam 21, the liner body 11 and the first beam 12 are sequentially in concave-convex fit, the concave-convex fit means that the two adjacently disposed components are matched in a concave-convex manner (for example, one is a convex structure, the other is a concave structure, the convex structure is embedded in the concave structure, etc.), the contact area of the connection position can be increased by the concave-convex fit manner, and the structural strength of the connection position can be enhanced.

In addition, the first beam 12 is disposed in the liner body 11, when the battery assembly 102 is mounted in the liner body 11, the first beam 12 separates the battery assembly 102, the first beam 12 has a certain deformation property, the battery assembly 102 expands in the use process, and the expansion amount of the battery assembly 102 is absorbed by using the deformation property of the first beam 12, so that the expansion and rupture conditions of the battery 100 are reduced, and the battery 100 can effectively meet the use requirement.

According to the battery box body 101 of this application, utilize unsmooth cooperation of first roof beam 12, inner bag body 11 and second roof beam 21 for battery box body 101's overall structure intensity satisfies the user demand, sets up into integral type structure with inner bag body 11, and integral type structure need not to seal processing, thereby can effectively reduce battery box body 101 the sealed degree of difficulty when processing, makes battery box body 101's manufacturing cost can be reduced effectively.

It should be understood that the accommodating space 24 is formed on the frame assembly 20, the liner body 11 is mounted on the frame assembly 20 and is disposed in the accommodating space 24, and the liner body 11 is protected by the frame assembly 20, so that the influence of external impact on the liner body 11 is reduced, and the impact on the battery assembly 102 disposed in the liner body 11 is effectively reduced.

In some embodiments of the present application, as shown in fig. 5 or 8, a bending structure 111 is formed on the bottom of the liner body 11, and the bending structure 111 is in concave-convex engagement with the first beam 12 and the second beam 21, respectively.

The bending structure 111 is formed at the bottom of the liner body 11, and is formed by bending the liner body 11 (for example, the outer wall of the liner body 11 is formed by bending in a direction facing the inner wall surface, or the inner wall of the liner body 11 is formed by bending in a direction facing the outer wall surface), and the bending structure 111 has a convex side and a concave side, the convex side and the concave side being disposed opposite to each other.

When assembling, one of the first beam 12 and the second beam 21 is inserted into the concave side of the bending structure 111, and the convex side of the bending structure 111 is inserted into the other of the first beam 12 and the second beam 21, thereby realizing the concave-convex fit of the second beam 21, the liner body 11 and the first beam 12.

The bending structure 111 is arranged, so that concave-convex matching among the first beam 12, the liner body 11 and the second beam 21 is effectively realized, and the whole structural strength of the battery box body 101 can meet the use requirement in a concave-convex matching mode.

It should be understood that the bending structure 111 and the liner body 11 are integrally processed, and a separate sealing structure is not required to be arranged at the position of the bending structure 111, so that the sealing difficulty of the battery box 101 can be reduced while the overall strength of the battery box 101 is increased.

In some embodiments of the present application, as shown in fig. 5 or 8, the bending structure 111 is disposed protruding toward the inside of the liner body 11, at least a portion of the bending structure 111 is inserted into the inside of the first beam 12, and at least a portion of the second beam 21 is inserted into the inside of the bending structure 111.

Specifically, the bending structure 111 is formed at the bottom of the liner body 11, wherein the bending structure 111 is protruded in the liner body 11 and the bending structure 111 is recessed outside the liner body 11 by bending the bottom of the liner body 11 from the outer surface of the liner body 11 to the inner surface thereof.

When the first beam 12 and the second beam 21 are assembled, the convex side of the bending structure 111 is inserted into the first beam 12, and the second beam 21 is inserted into the concave side of the bending structure 111, so that the second beam 21, the liner body 11 and the first beam 12 form a structure which is matched with each other in a sequentially concave-convex manner, and the overall structural strength of the connecting position is improved.

In addition, the bending structure 111 is arranged in the liner body 11 in a protruding manner and is in plug-in fit with the first beam 12, and the plug-in structure formed by the bending structure 111 and the first beam 12 is arranged in the liner body 11, so that the structural strength of the first beam 12 in the liner body 11 can be improved.

It should be understood that the end of the first beam 12 connected to the bending structure 111 is formed with a socket, the convex side of the bending structure 111 is inserted into the socket, and both form a saddle beam support, and similarly, one end of the second beam 21 is inserted into the concave side of the bending structure 111, and a saddle beam support is formed therebetween.

It should be noted that, the cross section of the bending structure 111 (the cross section of the bending structure 111 along the direction perpendicular to the length direction of the first beam 12) is U-shaped, and the U-shaped structure is convenient for processing, and meanwhile, the plugging operation in the assembly process can be facilitated, so that the assembly efficiency is effectively improved.

In some embodiments of the present application, the bending structure 111 protrudes towards the outside of the liner body 11, at least part of the bending structure 111 is inserted into the second beam 21, and at least part of the first beam 12 is inserted into the bending structure 111.

Specifically, the bending structure 111 is formed outside the liner body 11, wherein the bending structure 111 is formed by bending the bottom of the liner body 11 from the inner surface of the liner body 11 to the outer surface thereof, at this time, the bending structure 111 is convexly disposed outside the liner body 11, and the bending structure 111 is concavely disposed inside the liner body 11.

When the first beam 12 and the second beam 21 are assembled, the convex side of the bending structure 111 is inserted into the second beam 21, and the first beam 12 is inserted into the concave side of the bending structure 111, so that the second beam 21, the liner body 11 and the first beam 12 form a structure which is matched with each other in a sequentially concave-convex manner, and the overall structural strength of the connecting position is improved.

In addition, the bending structure 111 is arranged outside the liner body 11 in a protruding manner and is in plug-in fit with the second beam 21, and the plug-in structure formed by the bending structure 111 and the second beam 21 is arranged outside the liner body 11, so that the connection strength of the second beam 21 to the liner body 11 can be improved.

It should be understood that the end of the second beam 21 connected to the bending structure 111 is formed with a socket groove, the convex side of the bending structure 111 is inserted into the socket groove, the two form a saddle beam support, and similarly, one end of the first beam 12 is inserted into the concave side of the bending structure 111, and a saddle beam support is formed therebetween.

It should be noted that, the cross section of the bending structure 111 (the cross section of the bending structure 111 along the direction perpendicular to the length direction of the first beam 12) is U-shaped, and the U-shaped structure is convenient for processing, and meanwhile, the plugging operation in the assembly process can be facilitated, so that the assembly efficiency is effectively improved.

In some embodiments of the present application, the first beam 12 is connected to the liner body 11 by bonding.

Specifically, the first beam 12 is in concave-convex engagement with the liner body 11. Taking the example that the bending structure 111 of the liner body 11 is inserted into the first beam 12 for illustration, the bending structure 111 is convexly arranged in the liner body 11, at this time, the bending structure 111 is convexly arranged at one side of the inner portion of the liner body 11, the bending structure 111 is concavely arranged at one side of the outer portion of the liner body 11, when the first beam 12 is connected with the liner, structural adhesive is coated on one side of the protrusion of the bending structure 111, and then the groove of the first beam 12 is sleeved on the bending structure 111, and the first beam 12 and the bending structure 111 are adhered and fixed through the structure. The implementation process of the bonding mode is simple, and the assembly efficiency can be effectively improved.

In some embodiments of the present application, the first beam 12 is connected to the liner body 11 by welding.

Specifically, the first beam 12 is in concave-convex engagement with the liner body 11. Taking the example that the bending structure 111 of the liner body 11 is inserted into the first beam 12, the bending structure 111 is convexly arranged in the liner body 11, at this time, the bending structure 111 is convexly arranged at one side of the inner portion of the liner body 11, the bending structure 111 is concavely arranged at one side of the outer portion of the liner body 11, when the first beam 12 is connected with the liner, the protruded side of the bending structure 111 is inserted into the groove of the first beam 12, and the seam position of the liner body 11 and the first beam 12 is welded and fixed in a welding manner. The welding method has high connection strength, and can effectively reduce the falling-off of the first beam 12 relative to the liner body 11.

In some embodiments of the present application, the first beam 12 is connected to the liner body 11 by riveting.

Specifically, the first beam 12 is in concave-convex engagement with the liner body 11. Taking the example that the bending structure 111 of the liner body 11 is inserted into the first beam 12 for illustration, the bending structure 111 is convexly arranged in the liner body 11, at this time, the bending structure 111 is convexly arranged at one side of the inner portion of the liner body 11, the bending structure 111 is concavely arranged at one side of the outer portion of the liner body 11, when the first beam 12 is connected with the liner, the protruded side of the bending structure 111 is inserted into the groove of the first beam 12, and then the first beam 12 and the liner body 11 are fixed by pulling rivet. The riveting method has high connection strength, and can effectively reduce the falling-off of the first beam 12 relative to the liner body 11.

It should be noted that, when a corresponding caulking hole is provided at a caulking position, a corresponding seal (for example, a seal ring or a sealant) is provided at the caulking position at the time of caulking fixation, and the caulking position is sealed with the seal.

In some embodiments of the present application, the liner body 11 is a plastic piece. The inner container body 11 is of an integrated structure, the inner container body 11 is arranged to be a plastic piece, the inner container body 11 of an integrated structure is processed in an injection molding mode, sealing treatment can be omitted from the inner container body 11, and then sealing difficulty of the battery box 101 is reduced.

In addition, the processing cost of the plastic member is low, and the manufacturing cost of the battery case 101 can be effectively reduced.

In some embodiments of the present application, the epoxy member. The inner container body 11 is of an integrated structure, the inner container body 11 is set to be epoxy resin, the inner container body 11 of an integrated structure is processed in a thermoplastic mode, sealing treatment is not required to be arranged on the inner container body 11, and then sealing difficulty of the battery box 101 is reduced.

In some embodiments of the present application, the first beam 12 is an aluminum profile. The first beam 12 is arranged, so that the first beam 12 has enough mechanical properties, and meanwhile, the weight of the first beam 12 can be effectively reduced, and then the weight of the battery box body 101 can be effectively reduced.

In some embodiments of the present application, the thermoset composite material member. The first beam 12 is provided, so that the first beam 12 has thermoplastic property and further can effectively absorb the expansion amount of the battery assembly 102 in use while the first beam 12 has enough mechanical property.

It should be noted that the thermosetting composite material member may be a composite structural member formed by arranging glass fibers in an epoxy resin.

In some embodiments of the present application, as shown in fig. 5 or 8, a sinking table 112 is provided on an inner circumferential wall of the liner body 11, and at least one end portion of the first beam 12 is engaged with the sinking table 112.

The liner body 11 has a depth, the sinking table 112 is formed inside the liner body 11, and a stepped structure, that is, the sinking table 112, is formed on an inner peripheral wall of the liner body 11 in the depth direction of the liner body 11.

When the first beam 12 is connected with the liner body 11 in a matched manner, the first beam 12 is matched with the bending structure 111 of the liner body 11 in a concave-convex manner, at least one end part of the first beam 12 is abutted against the sinking table 112, the sinking table 112 is utilized to support the first beam 12, and then the connection strength and stability between the first beam 12 and the liner body 11 can be improved.

It should be noted that, the sinking platform 112 is looped around the periphery of the liner body 11, and one end of the first beam 12 may be matched with the sinking platform 112, or both ends may be matched with the sinking platform 112. In addition, the first beam 12 abuts against the sinking platform 112, and the connection manner between the first beam 12 and the sinking platform 112 includes, but is not limited to, adhesion, riveting, welding, clamping, and the like.

In some embodiments of the present application, the liner assembly 10 further includes a connector 13, and the first beam 12 adjacent to the sinking table 112 is connected to the sinking table 112 by at least one connector 13 in a direction intersecting the extending direction of the first beam 12.

Specifically, the liner body 11 has a rectangular structure, and the sinking platform 112 has a rectangular annular structure with two pairs of opposite sides disposed opposite to each other, wherein one pair of opposite sides is respectively matched with two ends of the first beam 12. Another pair of pairs is arranged parallel to the first beam 12, wherein, each of the pair of opposite sides is provided with a first beam 12, at least one connecting member 13 is connected between the first beam 12 and the pair of edges.

Through setting up connecting piece 13 to utilize connecting piece 13 to link to each other with sinking platform 112 with the adjacent first roof beam 12 of sinking platform 112 of inner bag body 11, thereby make the integrated configuration that first roof beam 12 and inner bag body 11 formed have sufficient intensity, and then make battery box 101 satisfy the demand of using.

It should be noted that the connection manner between the connection member 13 and the first beam 12 includes, but is not limited to, bonding, riveting, welding, clamping, or the like, and likewise, the connection manner between the connection member 13 and the sinking platform 112 includes, but is not limited to, bonding, riveting, welding, clamping, or the like.

In some embodiments of the present application, as shown in fig. 3 and 8, the number of the first beams 12 is plural, all the first beams 12 are arranged in parallel at intervals inside the liner body 11, and the number of the second beams 21 is identical to the number of the first beams 12 and is arranged in one-to-one correspondence with the first beams 12.

Specifically, a plurality of first beams 12 and a plurality of second beams 21 corresponding to the first beams 12 one by one are provided, so that the overall structural strength of the battery case 101 can be further improved, and the battery case 101 can meet the use requirement.

It should be noted that, the first beams 12 may be disposed at equal intervals or unequal intervals in the liner body 11, and may be disposed according to the specific arrangement requirements of the battery assembly 102.

In some embodiments of the present application, as shown in fig. 8, the frame assembly 20 further includes a frame 22 and a bottom plate 23 connected to the frame 22, where the frame 22 and the bottom plate 23 enclose a receiving space 24, and the second beam 21 is connected to at least the frame 22.

Specifically, the middle part of the frame 22 is a hollow structure with an upper opening and a lower opening, the bottom plate 23 is connected to the frame 22 and closes the bottom opening of the hollow structure, so as to enclose an accommodating space 24, the top opening of the accommodating space 24 is provided, the second beam 21 is arranged in the accommodating space 24, and the second beam 21 is at least connected with the frame 22 in a direction. The liner body 11 is arranged in the accommodating space 24 from the top opening of the accommodating space 24, so that the bending structure 111 of the liner body 11 is matched with the second beam 21, and then the first beam 12 is matched with the bending structure 111, so that the second beam 21, the liner body 11 and the first beam 12 sequentially form a concave-convex matched structure. The frame and the bottom plate 23 are surrounded to form the accommodating space 24, so that the structure is simple, the processing and the manufacturing are convenient, and the processing cost can be effectively reduced.

It should be noted that the frame 22 includes a plurality of frames formed around, wherein each frame is formed by rolling, and the plurality of frames are sequentially connected and fixed by welding or the like.

The second beam 21 is connected and fixed in the housing space 24, and the second beam 21 may be connected to only the frame 22, or the second beam 21 may be connected to both the frame 22 and the bottom plate 23.

In some embodiments of the present application, as shown in fig. 3, 6 and 7, at least one end of the second beam 21 is in a plug-fit with the frame 22.

Specifically, at least one end of the second beam 21 is in plug-in fit with the frame 22, so that the fit area between the second beam 21 and the frame 22 is increased, the connection strength between the second beam 21 and the frame 22 can be increased, the overall structural strength of the frame assembly 20 can be effectively enhanced, and the battery box 101 can effectively meet the use requirement.

In some embodiments of the present application, the connection between the second beam 21 and the frame 22 is welding.

Specifically, at least one end of the second beam 21 is inserted into the frame 22. Taking the example that both ends of the second beam 21 are inserted into the frame 22, and the second beam 21 and the frame 22 are connected and fixed by welding at the seam position of the second beam 21 and the frame 22. The welding method has high connection strength, and can effectively reduce the falling-off of the second beam 21 relative to the frame 22.

In some embodiments of the present application, the second beam 21 is connected to the frame 22 by means of an adhesive.

Specifically, at least one end of the second beam 21 is inserted into the frame 22. Taking the example that both ends of the second beam 21 are inserted into the frame 22, and the seam between the second beam 21 and the frame 22 is fixed by adhesion such as structural adhesive. The bonding mode is simple to operate and low in processing cost.

In some embodiments of the present application, the second beam 21 is connected to the frame 22 by riveting.

Specifically, at least one end of the second beam 21 is inserted into the frame 22. Taking the example that both ends of the second beam 21 are inserted into the frame 22, and the second beam 21 and the frame 22 may be connected and fixed by caulking at the connection position of the second beam 21 and the frame 22. The riveting mode is convenient to assemble and high in connection and fixation strength, and the overall structural strength of the battery box body 101 can be effectively improved.

In some embodiments of the present application, the second beam 21 is connected to the frame 22 by a screw connection.

Specifically, at least one end of the second beam 21 is inserted into the frame 22. Taking the example that both ends of the second beam 21 are inserted into the frame 22, and the second beam 21 and the frame 22 may be connected and fixed by a screw at the connection position of the second beam 21 and the frame 22. The screw connection can be detached, and maintenance of the battery case 101 can be achieved by detachment.

In some embodiments of the present application, the second beam 21 is connected to the frame 22 by a snap-fit connection.

Specifically, at least one end of the second beam 21 is inserted into the frame 22. Taking the example that both ends of the second beam 21 are inserted into the frame 22, and the second beam 21 and the frame 22 may be connected and fixed at the connection position of the second beam 21 and the frame 22 by means of a clamping connection. The assembly of the mode of joint is convenient, can effectively improve the efficiency of assembly.

Note that the frame 22 may be a metal member or a non-metal member, and similarly, the second beam 21 may be a metal member or a non-metal member.

In some embodiments of the present application, the frame 22 and the second beam 21 are made of steel, and the second beam 21 is welded to the frame 22 at a plugging position.

Specifically, the frame 22 and the second beam 21 are arranged to be made of steel and are connected and fixed in a welded manner, so that the overall strength of the connection position can be improved, and the overall structural strength and the main frequency of the battery box 101 can be effectively improved.

In some embodiments of the present application, the base plate 23 is provided with a reinforcing structure, which is disposed to intersect the second beam 21.

Specifically, a reinforcing structure is provided on the bottom plate 23, and the reinforcing structure may be provided on a side of the bottom plate 23 facing the liner body 11 or on a side facing away from the liner body 11. Through setting up additional strengthening to improve the structural strength of bottom plate 23, and then also make battery box 101's overall structure intensity and dominant frequency can be promoted effectively.

It should be noted that the reinforcing structure may be a protrusion structure or a rib structure provided on the bottom plate 23, or may be integrally formed with the bottom plate 23, or may be fixed to the bottom plate 23 by welding or bonding.

In some embodiments of the present application, the reinforcing structure comprises at least one reinforcing rib.

Specifically, the reinforcing rib is formed on the side of the bottom plate 23 facing away from the liner body 11, and the extending direction of the reinforcing rib is disposed so as to intersect with the extending direction of the second beam 21. The reinforcing ribs and the second beams 21 form a crossing structure, thereby improving the overall structural strength of the bottom plate 23. In addition, the reinforcing rib has a simple structure, is convenient to process, and can effectively reduce the manufacturing cost.

In some embodiments of the present application, the connection between the liner body 11 and the frame 22 includes, but is not limited to, bolting, riveting, bonding, clamping, or welding.

Specifically, taking a bolt connection as an example, a first through hole is formed in the frame 22, a flange is formed at the edge of the liner body 11, a second through hole is formed in the flange, and the frame 22 and the liner body 11 can be fixedly connected by using a bolt to pass through the first through hole and the second through hole and then locking with a nut.

It should be noted that the battery case 101 further includes a top cover, which cooperates with the liner body 11 and closes the opening of the liner body 11, wherein the connection manner between the top cover and the liner body 11 includes, but is not limited to, bolting, riveting, bonding, clamping or welding, and the combination position of the two needs to be sealed.

In some embodiments of the present application, the connection between the bottom plate 23 and the liner body 11 includes, but is not limited to, bonding or welding.

Specifically, taking bonding between the bottom plate 23 and the liner body 11 as an example, structural adhesive is arranged between the liner body 11 and the bottom plate 23, the bottom plate 23 and the liner body 11 are connected and fixed by the structural adhesive, and the bottom plate 23 and the liner body 11 are connected by the structural adhesive so as to be convenient for assembly and have good connection strength.

In some embodiments of the present application, the connection between the bottom plate 23 and the frame 22 includes, but is not limited to, bolting, riveting, bonding, clamping, or welding.

Specifically, taking a connection manner between the bottom plate 23 and the frame 22 as an example of bolting, a first hole is provided on the bottom plate 23, a second hole is provided on the frame 22, and the frame 22 and the bottom plate 23 can be connected and fixed by using bolts to pass through the first hole and the second hole and then locking with nuts.

The second aspect of the present application proposes a battery 100, as shown in fig. 2 to 8, the battery 100 including a battery case 101 according to the above and a battery assembly 102, the battery assembly 102 being disposed within the battery case 101.

The battery 100 has the battery case 101 as described above, and the battery case 101 has the same advantages as those of the battery case 101 as described above, and the description thereof is omitted herein.

As shown in fig. 1, a third aspect of the present application proposes a powered device comprising a battery 100 according to the above.

The battery 100 of the electric device has the battery box 101 as described above, and the beneficial effects of the battery box 101 are the same as those of the battery box 101 as described above, so that the description is omitted herein.

The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.

In an embodiment of the present application, as shown in fig. 2 to 8, the present application proposes a battery case 101, the battery case 101 including a liner assembly 10 and a frame assembly 20.

The liner assembly 10 comprises a liner body 11 and a first beam 12, the liner body 11 is of an integrated structure, the first beam 12 is arranged in the liner body 11, the frame assembly 20 comprises a frame 22, a bottom plate 23 and a second beam 21, and the frame 22 is formed by assembling rolling frames. The frame 22 and the bottom plate 23 are surrounded by a bolt connection to form an accommodating space 24, the second beam 21 is disposed in the accommodating space 24, and an end of the second beam 21 is inserted into the frame 22. The liner body 11 is disposed in the accommodating space 24, the liner body 11 and the frame 22 are connected by bolts, and the bottom plate 23 and the liner body 11 are connected by adhesion.

The bottom of the liner body 11 is formed with a bending structure 111, the bending structure 111 is arranged in a protruding mode in the liner body 11, a concave structure is formed on the outer surface of the liner body 11, a groove is formed on the first beam 12, the bending structure 111 is inserted into the groove, the second beam 21 is inserted into the concave position of the bending structure 111, and therefore the second beam 21, the liner body 11 and the first beam 12 form a combined concave-convex structure.

Further, the first beam 12 and the liner body 11 are connected by bonding, and the second beam 21 and the liner body 11 are connected by bonding.

Further, the liner body 11 is a plastic member, and the first beam 12 is an aluminum profile member.

Further, a sinking table 112 is provided on the inner peripheral wall of the liner body 11, and both end portions of the first beam 12 are respectively engaged with the sinking table 112. And the first beam 12 adjacent to the sinking table 112 is connected to the sinking table 112 by a plurality of connecting members 13 in a direction intersecting the extending direction of the first beam 12.

Further, the number of the first beams 12 is plural, all the first beams 12 are arranged in parallel at intervals inside the liner body 11, and the number of the second beams 21 is identical to the number of the first beams 12 and is arranged in one-to-one correspondence with the first beams 12.

Further, the frame 22 and the second beam 21 are made of steel, and the plugging position of the second beam 21 and the frame 22 is welded and fixed.

Further, the bottom plate 23 is provided with reinforcing ribs, which are disposed to intersect the second beam 21.

According to the battery box body 101 of this application, utilize unsmooth cooperation of first roof beam 12, inner bag body 11 and second roof beam 21 for battery box body 101's overall structure intensity satisfies the user demand, sets up into integral type structure with inner bag body 11, and integral type structure need not to seal processing, thereby can effectively reduce battery box body 101 the sealed degree of difficulty when processing, makes battery box body 101's manufacturing cost can be reduced effectively.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the embodiments, and are intended to be included within the scope of the claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (18)

1. A battery box, characterized in that the battery box comprises:

the liner assembly comprises a liner body and a first beam, wherein the liner body is of an integrated structure, and the first beam is arranged in the liner body;

The frame assembly comprises a second beam, an accommodating space is formed in the frame assembly, the liner body is arranged in the accommodating space, the second beam is arranged on the outer side of the liner body and corresponds to the first beam, and the liner body is matched with the first beam and the second Liang Aotu respectively.

2. The battery compartment of claim 1, wherein the bottom of the liner body has a bent structure formed thereon, the bent structure being mated with the first beam and the second Liang Aotu, respectively.

3. The battery box as claimed in claim 2, wherein the bending structure protrudes toward one side of the first beam, at least a portion of the bending structure is inserted into the first beam, and at least a portion of the second beam is inserted into the bending structure.

4. The battery box as claimed in claim 2, wherein the bending structure protrudes toward one side of the second beam, at least a portion of the bending structure is inserted into the second beam, and at least a portion of the first beam is inserted into the bending structure.

5. The battery box according to claim 1 or 2, wherein the first beam and the liner body are connected by bonding, welding or riveting;

And/or the connection mode between the second beam and the liner body is bonding, welding or riveting.

6. The battery case according to claim 1 or 2, wherein the inner container body is a plastic member or an epoxy resin member;

and/or the first beam is an aluminum profile piece or a thermosetting composite material piece;

and/or, the second beams are all made of steel.

7. The battery box according to claim 1 or 2, wherein a sinking table is provided on an inner peripheral wall of the liner body, and at least one end of the first beam is fitted with the sinking table.

8. The battery compartment of claim 7, wherein the liner assembly further includes a connector, the first beam adjacent to the sink deck being connected to the sink deck by at least one of the connectors in a direction intersecting the direction of extension of the first beam.

9. The battery box as claimed in claim 1 or 2, wherein the number of the first beams is plural, all the first beams are arranged in parallel at intervals inside the liner body, and the number of the second beams is identical to the number of the first beams and is arranged in one-to-one correspondence with the first beams.

10. The battery compartment of claim 1 or 2, wherein the frame assembly further comprises a frame and a base plate coupled to the frame, the frame and the base plate circumscribing to form the receiving space, the second beam coupled to at least the frame.

11. The battery compartment of claim 10, wherein at least one end of the second beam is in a snap fit with the frame.

12. The battery compartment of claim 11, wherein the second beam is connected to the frame at a mating location by welding, bonding, riveting, screwing, or clamping.

13. The battery compartment of claim 12, wherein the frame and the second beam are steel members and the second beam is welded to the frame at a mating location.

14. The battery compartment of claim 10, wherein the base plate is provided with a reinforcing structure disposed to intersect the second beam.

15. The battery compartment of claim 14, wherein the reinforcement structure includes at least one reinforcement rib.

16. The battery box body according to claim 10, wherein the connection mode between the liner body and the frame body is bolting, riveting, bonding, clamping or welding;

And/or the connection mode between the bottom plate and the liner body is bonding or welding;

and/or the connection mode between the bottom plate and the frame body is bolt connection, riveting, bonding, clamping or welding.

17. A battery, the battery comprising:

the battery case according to any one of claims 1 to 16;

and the battery assembly is arranged in the battery box body.

18. A powered device comprising the battery of claim 17.