CN219591578U - Battery box, battery and power consumption device - Google Patents

Abstract

The utility model provides a battery box, a battery and an electric device. In the structure, the fiber board is connected to the insulating main body, so that the bearing capacity of the box body is enhanced, the consumption of metal in the insulating main body is reduced, and the weight of the box body of the battery is reduced.

Description

Battery box, battery and power consumption device

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery box, a battery and an electric device.

Background

The battery has the advantages of high specific energy, high power density and the like, and is widely used in electronic equipment and vehicles, such as mobile phones, notebook computers, battery cars, electric automobiles, electric airplanes, electric ships, electric tools and the like.

With the continuous expansion of the application range of batteries in various fields, the problems of volume, weight and the like of the batteries are more and more paid attention to. The weight reduction of batteries has become an important research direction for those skilled in the art.

Disclosure of Invention

In view of the above, the present utility model provides a battery case, a battery and an electric device, wherein the battery case has a good bearing capacity and a light weight.

In a first aspect, some embodiments of the present utility model provide a case of a battery, including an insulating body having an accommodating space for accommodating a battery cell, and a fiberboard; the fiber board is connected to one side of the insulating main body, which is away from the accommodating space; the reinforcing plate is embedded inside the fiberboard.

In the above structure, since the fiber board is connected to the side of the insulating body facing away from the accommodating space and the reinforcing plate is embedded in the fiber board, the carrying capacity of the case is reinforced, which is advantageous in reducing the amount of metal in the insulating body, thereby helping to reduce the weight of the case of the battery.

According to the box body provided by some embodiments of the utility model, the fiber board is arranged on one side of the insulating main body, which is away from the accommodating space, so that the fiber board does not occupy the space in the accommodating space, and therefore, the box body can accommodate more battery monomers, and the performance of the battery is improved

According to the box body provided by some embodiments of the utility model, the box body further comprises the reinforcing plate embedded into the fiber plate, so that the structural strength of the fiber plate can be improved, and the bearing capacity and the shock resistance of the box body can be enhanced by the fiber plate.

According to some embodiments of the utility model, the reinforcement plate is a metal plate.

According to some embodiments of the utility model, the insulating main body includes a first wall and a plurality of second walls, the plurality of second walls are located on the same side of the first wall, the first wall and the plurality of second walls are connected to enclose the accommodating space, and the fiber board is connected to the first wall, so that the fiber board can be connected to the wall located on one side of the box, and the structure of the fiber board is reinforced.

According to the case provided by some embodiments of the present utility model, the case further includes a first reinforcing structure, where the first reinforcing structure is disposed on a side of the first wall facing the accommodating space, and the structural strength of the first wall can be enhanced by the first reinforcing structure, which is beneficial to further enhancing the bearing capacity of the case.

According to the box body provided by some embodiments of the present utility model, the box body further includes a second reinforcing structure, the second reinforcing structure is disposed on a side surface of the second wall body facing away from the accommodating space, and the structural strength of the second wall body can be enhanced by the second reinforcing structure, which is beneficial to further enhancing the bearing capacity of the box body.

According to the box body provided by some embodiments of the present utility model, the second wall body is provided with a wall plate protruding from the outer peripheral surface of the second wall body, the first wall body protrudes outwards from the accommodating space, and the second reinforcing structure is connected between the wall plate and a portion of the first wall body protruding out of the accommodating space, so that the second reinforcing structure connected to the outer peripheral surface of the second wall body is connected with the wall plate and the first wall body, which is favorable for further reinforcing the overall structural strength of the box body and is favorable for enhancing the bearing capacity of the box body.

According to some embodiments of the present utility model, the housing space is provided with an opening, the wall plate is located at the opening of the housing space, and the wall plate is provided with a connection structure for connecting with an external component, so that the wall plate can be connected with the external component through the connection structure, so as to protect components such as a battery cell in the housing space

According to the box body provided by some embodiments of the present utility model, the second reinforcing structures are provided in plurality, the second reinforcing structures are disposed at intervals on the outer peripheral surface of the second wall body, the connecting structures include a plurality of connecting holes disposed at intervals, the connecting holes penetrate through the wall plate along the thickness direction of the wall plate, and the connecting holes are located between two adjacent second reinforcing structures, so that the wall plate can be firmly connected to an external component by the connecting structures.

According to the box body provided by some embodiments of the utility model, the wall plate, the first wall body and the second wall body are of an integrated structure, so that the box body is convenient to process and manufacture, and the integral structure of the box body has good strength.

According to the box provided by some embodiments of the utility model, the insulation main body comprises a first insulation material, the fiber board comprises fibers and a second insulation material coating the fibers, and the first insulation material and the second insulation material are both plastics, so that the fiber board and the insulation main body have good insulation property.

According to the box body provided by some embodiments of the utility model, the first insulating material and the second insulating material are the same, so that a good bonding surface can be formed between the insulating main body and the fiber board, and the insulating main body and the fiber board are firmly connected, so that the box body can bear a large load.

In a second aspect, some embodiments of the present utility model provide a battery, where the battery includes a case provided in any one of the above-mentioned aspects and a plurality of battery cells, and a plurality of the battery cells are disposed in a receiving space of the case.

In a third aspect, some embodiments of the present utility model provide an electric device, where the electric device includes a battery provided by the above technical solution, and the battery is used to provide electric energy.

The technical scheme provided by the embodiment of the disclosure at least brings the following beneficial effects:

the utility model provides a battery box, which comprises an insulating main body and a fiber board, wherein the insulating main body is provided with an accommodating space for accommodating battery monomers, and the fiber board is connected with the insulating main body. In the above structure, since the fiber board is connected to the side of the insulating body facing away from the accommodating space and the reinforcing plate is embedded in the fiber board, the bearing capacity of the box is reinforced, which is beneficial to reducing the metal consumption in the insulating body, thereby helping to reduce the weight of the box.

The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.

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 only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

FIG. 1 is a schematic illustration of a vehicle according to some embodiments of the present utility model;

FIG. 2 is a split view of a battery provided in some embodiments of the present utility model;

fig. 3 is a split view of a battery case according to some embodiments of the present utility model;

fig. 4 is a schematic structural diagram of a battery case according to some embodiments of the present utility model;

FIG. 5 is an enlarged view of FIG. 4 at A;

fig. 6 is a cross-sectional view of a fiberboard provided by some embodiments of the present utility model.

Reference numerals in the specific embodiments are as follows:

1. an insulating body; 11. an accommodation space; 12. a first wall; 13. a second wall; 2. a fiber board; 21. a reinforcing plate; 3. a first reinforcing structure; 4. a second reinforcing structure; 5. a wall plate; 10. a case; 101. a first case; 102. a second case; 20. a battery cell; 1000. a vehicle; 100. a battery; 200. a controller; 300. a motor.

Detailed Description

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

It should be noted that unless otherwise indicated, technical or scientific terms used in the embodiments of the present utility model should be given the ordinary meanings as understood by those skilled in the art to which the embodiments of the present utility model belong.

In the description of the embodiments of the present utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplify the description, and do not indicate or imply that the devices or elements 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 utility model.

Furthermore, the technical terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more unless explicitly defined otherwise.

In the description of the embodiments of the present utility model, 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 utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In the description of embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

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, and various fields such as aerospace and the like. With the continuous expansion of the battery application field, the market demand thereof is also continuously expanding.

With the increasing range of applications of batteries in various fields, the weight reduction of batteries has become an important research direction for those skilled in the art.

In general, a case of a battery is made of a metal material, and processes such as stamping, extruding, rolling, welding and the like are required to be performed on a metal blank, and in order to make the case meet insulation requirements, an insulating coating is required to be coated on the surface of the case, which makes the case not only complicated in manufacturing process, but also heavy in weight.

In order to enable the battery box to have good bearing capacity and light weight, the embodiment of the utility model provides the battery box, which comprises an insulating main body and a fiber plate, wherein the insulating main body is provided with an accommodating space for accommodating battery monomers, and the fiber plate is connected with the insulating main body. The fiber board is connected to the insulating main body, so that the bearing capacity of the box body is enhanced, the material consumption of the insulating main body is reduced, and the weight of the box body is reduced.

The box body described in the embodiment of the utility model is suitable for batteries and power utilization devices using the batteries.

The electric device may be a vehicle, a mobile phone, a portable device, a notebook computer, a ship, a spacecraft, an electric toy, an electric tool, or the like. The vehicle can be a fuel oil vehicle, a fuel gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle or a range-extended vehicle; spacecraft including airplanes, rockets, space planes, spacecraft, and the like; the electric toy includes fixed or mobile electric toys, such as a game machine, an electric car toy, an electric ship toy, and an electric airplane toy; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railroad power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete shakers, and electric planers, among others. The embodiment of the utility model does not limit the electric device in particular.

For convenience of description, the following embodiment will take an electric device according to an embodiment of the present utility model as an example of the vehicle 1000.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1000 according to some embodiments of the utility model. 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 utility model, 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.

Referring to fig. 2, fig. 2 is an exploded view of a battery 100 according to some embodiments of the present utility model. The battery 100 includes a case 10 and a battery cell 20, and the battery cell 20 is accommodated in the case 10. Wherein the case 10 is used to provide an accommodation space for the battery cells 20. The number of the battery cells 20 in the battery 100 may be plural, and the plural battery cells 20 may be connected in series, parallel, or series-parallel, and series-parallel refers to that the plural battery cells 20 are connected in both series and parallel. The plurality of battery cells 20 can be directly connected in series or in parallel or in series-parallel, and then the whole formed by the plurality of battery cells 20 is accommodated in the box 10; of course, the battery 100 may also be a battery module formed by connecting a plurality of battery cells 20 in series or parallel or series-parallel connection, and a plurality of battery modules are then connected in series or parallel or series-parallel connection to form a whole and are accommodated in the case 10.

The case 10 may include a first case 101 and a second case 102, the first case 101 and the second case 102 being covered with each other to define a placement space for accommodating the battery cells 20. The first casing 101 and the second casing 102 may be various shapes, such as a rectangular parallelepiped, a cylinder, and the like. The first case 101 may have a hollow structure with one side opened, and the second case 102 may have a hollow structure with one side opened, and the open side of the second case 102 is closed to the open side of the first case 101 to form the case 10 having a space for placement.

The battery 100 may further include other structures, for example, the battery 100 may further include a bus member for making electrical connection between the plurality of battery cells 20.

Wherein each battery cell 20 may be a secondary battery or a primary battery; but not limited to, lithium sulfur batteries, sodium ion batteries, or magnesium ion batteries. The battery cell 20 may be in the shape of a cylinder, a flat body, a rectangular parallelepiped, or other shapes, etc.

Some embodiments of the present utility model provide a battery case, which may be the first case 101 of the foregoing embodiment or the second case 102 of the foregoing embodiment, and those skilled in the art may set the case according to the actual situation. As shown in fig. 3, the case includes an insulating body 1, a fiber board 2, and a reinforcing plate 21, the insulating body 1 having an accommodating space 11 for accommodating a battery cell; the fiber board 2 is connected to the side of the insulating main body 1 facing away from the accommodating space 11; the reinforcing plate 21 is embedded inside the fiberboard 2.

The insulating body 1 may be a body structure in the case, which can be insulated from components in the battery, and can meet the insulation requirement of the case. The insulating body 1 has a housing space 11 for housing other components in the battery such as the battery cell, and can protect the components such as the battery cell located in the housing space 11. The accommodation space 11 may be a structural space for accommodating components such as a battery cell, a bus component, a thermal management component, and the like in the battery, and these components are surrounded by the insulating body 1 having insulating properties in the accommodation space 11, so that not only the influence of the collision between an external component and the battery on the battery can be reduced, but also the risk of short-circuiting of the components such as the battery cell in the accommodation space 11 can be reduced.

Illustratively, the insulating body 1 may insulate the insulating body 1 from components in the battery by coating an insulating material such as plastic on a metal member so that the insulating body 1 has both strong strength and good insulation.

Fiber refers to a substance consisting of continuous or discontinuous filaments. The fiber board 2 may be a plate-like structure including fibers therein, and the fibers provided in the plate-like structure can improve the strength and toughness of the plate-like structure, and can enable the fiber board 2 to carry a large load and impact. By connecting the fiber board 2 to the insulating body 1, the box body formed by the fiber board 2 and the insulating body 1 has larger bearing capacity and shock resistance.

Illustratively, the fiber board 2 may be a plastic board having fibers contained therein, so that the fiber board 2 not only has good insulation but also has a light weight, which is advantageous for the weight reduction of the case.

In the above structure, since the fiber board 2 is connected to the insulating body 1, the carrying capacity of the case body composed of the fiber board 2 and the insulating body 1 is enhanced, and the amount of metal is reduced, thereby contributing to the weight reduction of the case body and the improvement of the energy density of the battery.

As shown in fig. 3 and 4, the fiber board 2 is disposed on one side of the insulating body 1 away from the accommodating space 11, which may mean that the fiber board 2 is connected to the outer side of the insulating body 1, so that the fiber board 2 does not occupy the space in the accommodating space 11, thereby enabling the box to accommodate more battery cells, and being beneficial to improving the performance of the battery.

The reinforcing plate 21 may be a member for reinforcing the structural strength of the fiberboard 2, and as shown in fig. 5, it is embedded in the fiberboard 2, so that not only the influence on the appearance of the fiberboard 2 can be reduced, but also the surface layer of the fiberboard 2 can be kept well insulated.

Illustratively, the structural strength of the reinforcing plate 21 is greater than that of the fiberboard 2 so that the structural strength of the fiberboard 2 can be enhanced by embedding the reinforcing plate 21 in the fiberboard 2 so that the fiberboard 2 can enhance the carrying capacity and impact resistance of the tank.

In some embodiments, the reinforcement plate 21 is a metal plate.

The reinforcing plate 21 is a metal plate, which means that the reinforcing plate 21 is made of metal, and the reinforcing plate 21 made of metal has strong structural strength because the metal has strong structural strength. Illustratively, the reinforcing plate 21 may be a steel plate, an aluminum plate, and a metal alloy plate.

In some embodiments, the insulating main body 1 includes a first wall 12 and a plurality of second walls 13, the plurality of second walls 13 are located on the same side of the first wall 12, the first wall 12 and the plurality of second walls 13 are connected to enclose the accommodating space 11, and the fiber board 2 is connected to the first wall 12.

The first wall 12 and the second wall 13 may be different walls constituting the insulating body 1. The second wall body 13 is provided with a plurality of second wall bodies 13, and the plurality of second wall bodies 13 can be connected end to end in sequence and arranged on the same side of the first wall body 12 so as to form a cylindrical structure. The first wall 12 is connected with the plurality of second walls 13 to form the accommodating space 11, and may be one end of a tubular structure formed by connecting the first wall 12 with the plurality of second walls 13 end to end, and the accommodating space 11 is formed by the first wall 12 covering one end of the tubular structure and the plurality of second walls 13 forming the tubular structure.

The fiber board 2 is connected to the first wall body 12, so that the strength of the first wall body 12 can be enhanced, and the purpose of enhancing the structural strength of the box body by connecting the fiber board 2 to the insulating main body 1 is achieved. In some embodiments, the fiber board 2 is connected to the second wall 13 to strengthen the structural strength of the box; the fiber boards 2 can be connected to the first wall body 12 and the second wall body 13, so that all the wall bodies of the insulating main body 1 are reinforced by connecting the fiber boards 2, and the structural strength of the box body can be further enhanced.

In some embodiments, the case further includes a first reinforcing structure 3, and the first reinforcing structure 3 is disposed on a side of the first wall 12 facing the accommodating space 11.

The first reinforcing structure 3 may be a structure for reinforcing structural strength in the case. By arranging the first reinforcing structure 3 on the first wall body 12, the structural strength of the first wall body 12 can be enhanced by the first reinforcing structure 3, which is beneficial to further enhancing the bearing capacity of the box body.

By arranging the first reinforcing structure 3 on the side of the first wall body 12 facing the accommodating space 11, the first reinforcing structure 3 is located in the accommodating space 11, which is beneficial to reducing the influence of the first reinforcing structure 3 on the appearance of the box body.

Illustratively, the first reinforcing structure 3 may include a plurality of reinforcing ribs protruding on the side of the first wall 12 facing the accommodating space 11, the plurality of reinforcing ribs being uniformly disposed on the side of the first wall 12 facing the accommodating space 11 by being equally spaced, so that the structural strength of the first wall 12 can be uniformly improved.

In some embodiments, the case may be a lower case, the first wall 12 may be a bottom plate of the lower case, the first wall 12 has a tendency to collapse downward when being subjected to the gravity of the battery cell or the like in the accommodating space 11, the first reinforcing structure 3 is under pressure, and the fiberboard 2 is under tension.

In some embodiments, the case further includes a second reinforcing structure 4, where the second reinforcing structure 4 is disposed on a side of the second wall 13 facing away from the accommodating space 11.

The second reinforcing structure 4 may be a structure for reinforcing structural strength in the case. By providing the second reinforcement structure 4 on the second wall 13, the structural strength of the second wall 13 can be enhanced by the second reinforcement structure 4, which is beneficial to further enhancing the bearing capacity of the box.

The second reinforcing structure 4 is arranged on the outer peripheral surface of the second wall body 13, which is away from the accommodating space 11, so that the second reinforcing structure 4 is positioned outside the accommodating space 11, and occupation of the second reinforcing structure 4 to the accommodating space 11 is reduced.

Illustratively, the second reinforcing structure 4 may include a plurality of reinforcing plates 21 disposed on an outer circumferential surface of the second wall 13 facing away from the accommodating space 11, the plurality of reinforcing plates 21 being uniformly wound around the outer circumferential surface of the second wall 13 facing away from the accommodating space 11 at equal intervals, so that the structural strength of the second wall 13 can be uniformly improved.

In some embodiments, the second wall 13 is provided with a wall plate 5 protruding from an outer peripheral surface of the second wall 13, the first wall 12 protrudes outward from the accommodating space 11, and the second reinforcing structure 4 is connected between the wall plate 5 and a portion of the first wall 12 protruding from the accommodating space 11.

The wall plate 5 may have a plate-like structure, and is protruded on the outer peripheral surface of the second wall body 13. By making the first wall body 12 extend outwards from the accommodating space 11, the second reinforcing structure 4 is connected between the wall plate 5 and the part of the first wall body 12 extending out of the accommodating space 11, so that the second reinforcing structure 4 connected to the outer peripheral surface of the second wall body 13 is connected with the wall plate 5 and the first wall body 12, which is beneficial to further reinforcing the overall structural strength of the box body and enhancing the bearing capacity of the box body.

In some embodiments, the accommodating space 11 is provided with an opening, the wall plate 5 is positioned at the opening of the accommodating space 11, and the wall plate 5 is provided with a connecting structure for connecting with an external part.

The accommodating space 11 is provided with an opening, so that the battery unit can be installed in the accommodating space 11 from the opening, and the battery unit can be conveniently disassembled and assembled. Through set up wallboard 5 in accommodation space 11's opening part and set up connection structure on wallboard 5, with first wall 12 stretches out the wallboard 5 that accommodation space 11's the relative interval of part set up can be connected with external part through connection structure to the part such as battery monomer in the accommodation space 11 protects.

In some embodiments, the second reinforcing structures 4 are provided in plurality, the plurality of second reinforcing structures 4 are arranged on the outer peripheral surface of the second wall body 13 at intervals, the connecting structures comprise a plurality of connecting holes 6 arranged at intervals, the connecting holes 6 penetrate through the wall plate 5 along the first direction, and the connecting holes 6 are positioned between two adjacent second reinforcing structures 4.

By winding the plurality of second reinforcing structures 4 around the outer peripheral surface of the second wall body 13 at intervals, a gap is provided between two adjacent second reinforcing structures 4. The connection hole 6 penetrates the wall plate 5 in the first direction, which may mean that the connection hole 6 penetrates the wall plate 5 in the thickness direction of the wall plate 5, and may be connected with an external part by using a connection bolt penetrating the connection hole 6, so that the case is connected with the external part. The connecting structure comprises a plurality of connecting holes 6 which are arranged on the wall plate 5 at equal intervals, and connecting holes 6 are formed between every two adjacent second reinforcing structures 4, so that the wall plate 5 can be firmly connected to external components by the connecting structure.

In some embodiments, the wall plate 5, the first wall 12 and the second wall 13 are integrally formed.

The wall plate 5, the first wall body 12 and the second wall body 13 are integrally formed, which means that the wall plate 5, the first wall body 12 and the second wall body 13 are manufactured by an integrally formed processing method such as injection molding, so that the box body can be integrally and synchronously manufactured, the box body is convenient to manufacture and process, and the integral structure of the box body has good strength.

In some embodiments, the insulating body 1 comprises a first insulating material, the fibre board 2 comprising fibres and a second insulating material surrounding the fibres, both the first insulating material and the second insulating material being plastics.

The first insulating material may be a material from which the insulating body 1 is made, which has good insulation properties. The first insulating material may be a thermoplastic such that the insulating body 1 may be integrally formed using an injection molding process. The second insulating material may be an insulating material coated on the fibers, which may be the same thermoplastic as the first insulating material, and the fibers included in the fiberboard 2 may be glass fibers, which have good insulation, high heat resistance, good corrosion resistance, and high mechanical strength, so that the fibers and the second insulating material coated thereon can be formed into the fiberboard 2 by hot pressing by coating the second insulating material on the fibers.

Illustratively, the method of forming the fiberboard 2 is as follows:

firstly, glass fibers and thermoplastic plastics are soaked to generate composite unidirectional tapes, then a plurality of composite unidirectional tapes are overlapped and arranged, finally, the overlapped composite unidirectional tapes are hot-pressed, and the thermoplastic plastics on the composite unidirectional tapes are combined into a whole after hot-pressing, so that the fiberboard 2 is finally formed. In some embodiments, when the plurality of composite unidirectional tapes are arranged in an overlapping manner, a reinforcing plate 21 such as a metal plate may be arranged in the plurality of composite unidirectional tapes to improve the structural strength of the fiberboard 2.

In some embodiments, the fiber board 2 may be placed as an insert in a mold of injection molding when the insulating body 1 is injection molded, so that the insulating body 1 and the fiber board 2 in the case are firmly connected by injection molding. In some embodiments, the second insulating material in the fiber board 2 and the first insulating material in the insulating main body 1 are both the same thermoplastic plastics, and by injection molding, the insulating main body 1 and the fiber board 2 can form a good bonding surface, so that the two materials are firmly connected, and the box body can bear large load.

According to some embodiments of the present utility model, as shown in fig. 3 and 4, the present utility model provides a box body, which includes an insulating main body 1 and a fiber board 2, wherein the insulating main body 1 includes a first wall body 12 and a plurality of second wall bodies 13, the second wall bodies 13 are connected to the same side of the first wall body 12 to enclose an accommodating space 11, and the fiber board 2 is connected to a side of the first wall body 12 facing away from the accommodating space 11. The first wall body 12 is equipped with first additional strengthening towards one side of accommodation space 11, and accommodation space 11's opening part is equipped with the wallboard 5 that protrudes in second wall body 13 outer peripheral face, and second wall body 13 deviates from accommodation space 11's outer peripheral face still is equipped with and connects in wallboard 5 and first wall body 12 stretches out second additional strengthening 4 between accommodation space 11's the part. The first wall body 12, the second wall body 13, the first reinforcing structure 3, the second reinforcing structure 4 and the wall plate 5 in the insulating main body 1 are integrally formed by adopting an injection molding process. The fiber board 2 comprises fibers and a second insulating material coating the fibers, the second insulating material and the first insulating material in the insulating main body 1 are thermoplastic plastics, and the fiber board 2 can be firmly connected with the insulating main body 1 by placing the fiber board 2 as an insert in an injection mold for molding the insulating main body 1.

Some embodiments of the present utility model further provide a battery, where the battery includes the case provided by the above technical solution and a plurality of battery units, and the plurality of battery units are disposed in the accommodating space of the case.

Some embodiments of the present utility model further provide an electric device, where the electric device includes the battery provided by the above technical solution, and the battery is used for providing electric energy

The powered device may be any of the aforementioned devices or systems employing batteries.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will 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 utility model, and are intended to be included within the scope of the appended 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 utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (13)

1. A battery case comprising:

an insulating body having an accommodating space for accommodating the battery cell; and

the fiber board is connected to one side of the insulating main body, which is away from the accommodating space;

and the reinforcing plate is embedded into the fiber plate.

2. The cabinet of claim 1, wherein the reinforcement plate is a metal plate.

3. The cabinet of claim 1, wherein the insulating body comprises a first wall and a plurality of second walls, the plurality of second walls being located on a same side of the first wall, the first wall being connected to the plurality of second walls to enclose the receiving space, the fiberboard being connected to the first wall.

4. A case according to claim 3, further comprising a first reinforcing structure provided at a side of the first wall body facing the accommodation space.

5. A box according to claim 3, further comprising a second reinforcing structure provided at a side of the second wall facing away from the accommodation space.

6. The case according to claim 5, wherein the second wall body is provided with a wall plate protruding from an outer peripheral surface of the second wall body, the first wall body protrudes outward from the accommodation space, and the second reinforcing structure is connected between the wall plate and a portion of the first wall body protruding from the accommodation space.

7. The cabinet of claim 6, wherein the receiving space is provided with an opening, the wall plate is positioned at the opening of the receiving space, and the wall plate is provided with a connection structure for connection with an external member.

8. The case according to claim 7, wherein the second reinforcing structure is provided in plurality, the plurality of second reinforcing structures are provided on the outer peripheral surface of the second wall at intervals, the connecting structure includes a plurality of connecting holes provided at intervals, the connecting holes penetrate through the wall plate in the thickness direction of the wall plate, and the connecting holes are located between two adjacent second reinforcing structures.

9. The cabinet of claim 6, wherein said wall panel, said first wall and said second wall are integrally formed.

10. The cabinet according to any one of claims 1 to 9, wherein the insulating body comprises a first insulating material, the fiber board comprises fibers and a second insulating material covering the fibers, and the first insulating material and the second insulating material are both plastic.

11. The cabinet of claim 10, wherein the first insulating material and the second insulating material are the same.

12. A battery, comprising:

a plurality of battery cells;

the case according to any one of claims 1 to 11, wherein a plurality of the battery cells are disposed in the receiving space of the case.

13. An electrical device comprising a battery as claimed in claim 12, said battery being arranged to provide electrical energy.