Box body, battery and electric equipment

Abstract

The embodiment of the utility model provides a box body, a battery and electric equipment. The box body comprises a first box body, a second box body and a first connecting piece. The first box body comprises a first main body and a first edge part. The second case includes a second main body and a second edge portion. The first box body and the second box body are arranged along a first direction to define an accommodating cavity for accommodating the battery monomers; the first edge portion has a first surface facing the second edge portion, a second surface away from the second edge portion, and a first side surface connecting the first surface and the second surface. The first connecting piece is used for connecting the first edge part and the second edge part. The first connecting piece is of a bent structure, and the first connecting piece is connected to the second edge part and bypasses the first side face to abut against the second surface. According to the box body disclosed by the embodiment of the invention, the first box body and the second box body can be fixed by bending the first connecting piece after the first box body and the second box body are covered by the first connecting piece.

Description

Technical Field

[0001] The present application relates to the field of batteries, and more specifically, to a box, a battery and an electrical device. Background Art

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in their development.

[0003] The battery is usually composed of a box and a battery cell contained in the box, and the first box and the second box used to form the box are usually connected by bolts. However, since each bolt needs to be rotated multiple times, there is a defect that the assembly is time-consuming and troublesome. Utility Model Content

[0004] In view of the above problems, the present application provides a box, a battery and an electrical device, which can alleviate the problem of time-consuming and labor-intensive assembly caused by bolt connection between the first box and the second box during battery assembly.

[0005] In a first aspect, the present application provides a box for accommodating a battery cell, comprising a first box, a second box, and a first connector. The first box comprises a first main body and a first edge portion. The second box comprises a second main body and a second edge portion. The first box and the second box are arranged along a first direction to enclose and form a receiving cavity for placing the battery cell. The first edge portion has a first surface facing the second edge portion, a second surface facing away from the second edge portion, and a first side surface connecting the first surface and the second surface. The first connector is used to connect the first edge portion and the second edge portion. The first connector is a bending structure, the first connector is connected to the second edge portion, and bypasses the first side surface to abut against the second surface.

[0006] In the technical solution of the embodiment of the present application, by connecting the first connector to the second edge portion, after the first box and the second box are arranged along the first direction to enclose and form a receiving cavity for placing the battery cell, the first connector can be bent so that the first connector bypasses the first side surface to abut against the second surface, thereby fixing the first box relative to the second box in the first direction. Thus, the effect of fixing the first box and the second box by bending the first connector is achieved, thereby improving the convenience of assembling the first box and the second box.

[0007] In some embodiments, the first edge portion is provided with a first limiting notch, the first limiting notch is formed by the first side surface being recessed in a direction close to the accommodating cavity, and the first connecting member is passed through the first limiting notch. By passing the first connecting member connected to the second edge portion through the first limiting notch, the movement of the first box body relative to the second box body in a direction perpendicular to the first direction is limited.

[0008] In some embodiments, the first connecting member includes a first section and a second section. The first section is inserted into the first limiting notch, one end of the first section is connected to the second edge portion, the other end of the first section is connected to the second section, and the second section abuts against the second surface. Along the first direction, the first edge portion is clamped between the second edge portion and the second section. By inserting one end of the first section into the first limiting notch, the movement of the first box body relative to the second box body in a direction perpendicular to the first direction is limited. At the same time, by bending the second section relative to the first section, the first edge portion is fixed between the second edge portion and the second section in the first direction to limit the movement of the first box body relative to the second box body in the first direction.

[0009] In some embodiments, the first connector and the second edge portion are integrally formed. Such a design not only facilitates the manufacturing and forming of the first connector and the second edge portion, but also provides a better connection strength between the first connector and the second edge portion, thereby facilitating the connection strength between the first box and the second box.

[0010] In some embodiments, the second edge portion has a third surface facing the first edge portion, a fourth surface away from the first edge portion, and a second side surface connecting the third surface and the fourth surface. The case also includes a second connector. The second connector is used to connect the first edge portion and the second edge portion. The second connector is a bending structure, the second connector is connected to the first edge portion, and bypasses the second side surface to abut against the fourth surface. By connecting the second connector to the first edge portion, after the first case and the second case are arranged along the first direction to enclose and form a receiving cavity for placing the battery cell, the second connector can be bent so that the second connector bypasses the second side surface to abut against the fourth surface, so that the second case is fixed relative to the first case in the first direction, thereby improving the convenience of assembling the first case and the second case.

[0011] In some embodiments, the second edge portion is provided with a second limiting notch, the second limiting notch is formed by the second side surface being recessed in a direction close to the accommodating cavity, and the second connecting member is passed through the second limiting notch. By passing the second connecting member connected to the first edge portion through the second limiting notch, the movement of the first box body relative to the second box body in a direction perpendicular to the first direction is limited.

[0012] In some embodiments, the second connector is integrally formed with the first edge portion, which not only facilitates the manufacturing and forming of the second connector and the first edge portion, but also provides a better connection strength between the second connector and the first edge portion, thereby facilitating the connection strength between the second box and the first box.

[0013] In some embodiments, a plurality of second connectors are provided, and along the circumference of the box, the first connector and the second connector are alternately provided, and each first connector is arranged at intervals with the second connector adjacent thereto. By arranging a plurality of first connectors and second connectors around the circumference of the box, the first box and the second box are relatively fixed in a direction perpendicular to the first direction. At the same time, the first connector and the second connector are alternately provided, so that the forces on the first box and the second box are more uniform, which is conducive to improving the connection strength between the second box and the first box.

[0014] In some embodiments, the second edge portion has a third surface facing the first edge portion, a fourth surface facing away from the first edge portion, and a second side surface connecting the third surface and the fourth surface. The first connecting member bypasses the first side surface and the second side surface and abuts against the second surface and the fourth surface respectively. By bending the first connecting member to abut against the second surface and the fourth surface respectively, the relative movement of the first box body and the second box body in the first direction is restricted.

[0015] In some embodiments, the first edge portion is provided with a first limiting notch, and the first limiting notch is formed by the first side surface being recessed in a direction close to the accommodating cavity. The second edge portion is provided with a second limiting notch, and the second limiting notch is formed by the second side surface being recessed in a direction close to the accommodating cavity. The first connecting member is inserted through the first limiting notch and the second limiting notch. By inserting the first connecting member through the first limiting notch and the second limiting notch, the first box body is restricted from moving relative to the second box body in a direction perpendicular to the first direction.

[0016] In some embodiments, the first connecting member includes a first section, a second section, and a third section. The second section abuts against the second surface, the third section abuts against the fourth surface, and the first section connects the second section and the third section. Along the first direction, the first edge portion and the second edge portion are sandwiched between the second section and the third section. Such a design is to bend the second section and the third section relative to the first section, so as to fix the first edge portion and the second edge portion between the second section and the third section in the first direction, thereby limiting the movement of the first box body relative to the second box body in the first direction.

[0017] In some embodiments, the second surface is provided with a first limiting hole, and the fourth surface is provided with a second limiting hole. The first connecting member further includes a fourth section and a fifth section, the fourth section is connected to an end of the second section away from the first section, and the fourth section is inserted into the first limiting hole. The fifth section is connected to an end of the third section away from the first section, and the fifth section is inserted into the second limiting hole. The first box is fixed relative to the second box by bending the fourth section relative to the second section so that the fourth section is inserted into the first limiting hole, and by bending the fifth section relative to the third section so that the fifth section is inserted into the second limiting hole.

[0018] In some embodiments, a plurality of first connecting members are provided, and the plurality of first connecting members are arranged at intervals along the circumference of the box body. By arranging the plurality of first connecting members at intervals around the circumference of the box body, the movement of the first box body relative to the second box body in a direction perpendicular to the first direction is restricted.

[0019] In some embodiments, the first connector is made of aluminum, aluminum alloy or steel, and / or the first box and the second box are made of aluminum, aluminum alloy or steel. When the first connector, the first box and the second box are all made of steel, the first connector, the first box and the second box have good strength, which helps to reduce the deformation of the box due to collision, thereby reducing the risk of failure of the connection between the first box and the second box. When the first connector, the first box and the second box are all made of aluminum or aluminum alloy, it helps to reduce the weight of the box, and since aluminum has good ductility, it is beneficial to the molding of the first connector, the first box and the second box.

[0020] In a second aspect, the present application provides a battery, which includes the battery cell in the above embodiment.

[0021] In a third aspect, the present application provides an electrical device, which includes the battery in the above embodiment, and the battery is used to provide electrical energy.

[0022] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a vehicle according to some embodiments of the present application;

[0026] Figure 2 A schematic diagram of the exploded structure of a battery according to some embodiments of the present application;

[0027] Figure 3 This is a schematic diagram of the exploded structure of the box in some embodiments of the present application;

[0028] Figure 4 This is a schematic diagram of the structure of the box in some embodiments of the present application;

[0029] Figure 5 for Figure 4 An enlarged view of section A of the box shown;

[0030] Figure 6 This is a schematic structural diagram of a first box body in some embodiments of the present application;

[0031] Figure 7 for Figure 4 Sectional view of B1-B1;

[0032] Figure 8 for Figure 4 A cross-sectional view taken along line B2-B2;

[0033] Fig. 9 A schematic diagram of an exploded structure of a box including a second connecting member in some embodiments of the present application;

[0034] Fig.10 This is a schematic structural diagram of a box body including a second connecting member in some embodiments of the present application;

[0035] Fig.11 for Fig.10 Sectional view of C1-C1;

[0036] Fig.12 for Fig.10 a cross-sectional view of C2-C2;

[0037] Fig.13 This is a schematic diagram of the structure of the box in some embodiments of the present application;

[0038] Fig.14 for Fig.13 The cross-sectional view of D1-D1;

[0039] Fig.15 for Fig.13 Sectional view of E2-E2;

[0040] Fig.16 This is a schematic structural diagram of the first connecting member of some embodiments of the present application.

[0041] The reference numerals in the specific implementation manner are as follows:

[0042] 1000-Vehicles;

[0043] 100-battery; 200-controller; 300-motor;

[0044] 10-box; 11-first box; 12-second box; 13-first connecting piece; 14-second connecting piece; 101-accommodating cavity;

[0045] 111-first body; 112-first edge portion; 112a-first surface; 112b-second surface; 112c-first side surface; 112d-first limiting notch; 112e-first limiting notch; 112f-first limiting hole;

[0046] 121 - second body; 122 - second edge; 122a - third surface; 122b - fourth surface; 122c - second side surface; 122d - second limiting notch; 122e - second limiting notch; 122f - second limiting hole;

[0047] 131- first paragraph; 131a- first paragraph; 132- second paragraph; 132a- second paragraph; 133- third paragraph; 134- fourth paragraph; 135- fifth paragraph;

[0048] 20-Battery cells. DETAILED DESCRIPTION

[0049] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0051] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0052] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0053] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0054] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0055] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0056] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0057] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0058] Generally, a power battery includes a housing and a battery cell. The housing is composed of a first housing and a second housing that are covered together. In the related art, the first housing is generally connected and covered with the second housing by bolting or screwing to form a housing cavity for accommodating the battery cell. Therefore, when connecting the first housing and the second housing, it is necessary to tighten a plurality of bolts or screws distributed on the first housing and the second housing. However, rotating and tightening the bolts or screws one by one for multiple turns will consume a long assembly time, which increases the overall assembly time of the battery, thereby reducing production efficiency and increasing production costs, which in turn has an adverse effect on the assembly of the battery.

[0059] In view of this, an embodiment of the present application provides a technical solution, in which the box body includes a first box body, a second box body and a first connecting member, the first connecting member is connected to the second box body, and the first connecting member is a bending structure.

[0060] With the battery having this structure, after the first box is covered on the second box to form a housing cavity for accommodating the battery cell, the first connecting member can be bent so that the first connecting member bypasses the edge of the first box and abuts against the side of the first box facing away from the second box, thereby fixing the first box and the second box.

[0061] Thereby, the first box body and the second box body can be fixed by bending the first connecting member, thereby improving the convenience of assembling the first box body and the second box body.

[0062] The box disclosed in the embodiment of the present application can be used, but not limited to, in electrical equipment such as vehicles, ships or aircraft. A power supply system of the electrical equipment composed of the box disclosed in the present application, batteries, etc. can be used, which is conducive to improving the convenience of the battery during the assembly process, thereby reducing the time required for the installation of the power supply system of the electrical equipment composed of the box disclosed in the present application, batteries, etc.

[0063] The embodiments of the present application provide an electric device using a battery as a power source, and the electric device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0064] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device in an embodiment of the present application.

[0065] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0066] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0067] Please refer to Figure 2 , Figure 2 The exploded view of the battery 100 provided in some embodiments of the present application. The battery 100 includes a housing 10 and a battery cell 20 , wherein the battery cell 20 is accommodated in the housing 10 .

[0068] There may be multiple battery cells 20, and the multiple battery cells 20 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells 20 are both connected in series and in parallel. The multiple battery cells 20 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 20 is accommodated in the box 10; of course, the battery 100 may also be a battery module formed by connecting multiple battery cells 20 in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 10. The battery 100 may also include other structures, for example, the battery 100 may also include a converging component for realizing electrical connection between the multiple battery cells 20.

[0069] Each battery cell 20 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular, or in other shapes.

[0070] Please refer to Figures 3 to 5 , Figure 3 This is a schematic diagram of the exploded structure of the box 10 provided in some embodiments of the present application. Figure 4 This is a schematic diagram of the structure of the box 10 in some embodiments of the present application. Figure 5 for Figure 4 The enlarged view of the A part of the box body 10 is shown. Figure 3 A box 10 according to an embodiment of the present application is used to accommodate a battery cell 20, and includes a first box 11, a second box 12, and a first connector 13. The first box 11 includes a first body 111 and a first edge portion 112. The second box 12 includes a second body 121 and a second edge portion 122. The first box 11 and the second box 12 are arranged along a first direction X to enclose a receiving cavity 101 for placing the battery cell 20.

[0071] The first edge portion 112 has a first surface (not shown) facing the second edge portion 122, a second surface 112b away from the second edge portion 122, and a first side surface 112c connecting the first surface (not shown) and the second surface 112b. The first connecting member 13 is used to connect the first edge portion 112 and the second edge portion 122.

[0072] Reference Figure 4 and Figure 5 The first connecting member 13 is a bent structure. The first connecting member 13 is connected to the second edge portion 122 and goes around the first side surface 112c to abut against the second surface 112b.

[0073] In the figure, the first direction X is the height direction of the box body 10 , the second direction Y is the width direction of the box body 10 , and the third direction Z is the length direction of the box body 10 .

[0074] The box body 10 is a shell for providing a housing cavity 101 for the battery cell 20 to provide a stable and sealed working environment for the battery cell 20 .

[0075] The first box body 11 is a component used to cover the second box body 12 to form a receiving chamber 101 .

[0076] The second box body 12 is a component used to cover the first box body 11 to form the accommodating cavity 101 .

[0077] Without limitation, the second box body 12 may be a hollow structure with one end open, and the first box body 11 may be a plate-shaped structure, and the first box body 11 covers the open side of the second box body 12, so that the first box body 11 and the second box body 12 jointly define the accommodating cavity 101;

[0078] The first box body 11 and the second box body 12 may also be hollow structures with one side open. The open side of the first box body 11 covers the open side of the second box body 12 so that the first box body 11 and the second box body 12 jointly define the accommodating cavity 101.

[0079] Of course, the box body 10 formed by the first box body 11 and the second box body 12 can be in various shapes, such as a cylinder, a cuboid, etc.

[0080] The first edge portion 112 is a portion disposed around the outer circumference of the first body 111. The length of the first edge portion 112 in the first direction X is smaller than the length of the first body 111 in the first direction X.

[0081] The second edge portion 122 is a portion disposed around the outer circumference of the second body 121 , and a length of the second edge portion 122 in the first direction X is smaller than a length of the second body 121 in the first direction X.

[0082] In the above solution, the first edge portion 112 and the first body 111 as well as the second edge portion 122 and the second body 121 can be connected in a non-detachable installation manner, for example, by welding, integral molding, etc.

[0083] The first surface (not shown in the figure) is a surface of the first edge portion 112 facing the second edge portion 122 along the first direction X, and the first surface (not shown in the figure) is perpendicular to the first direction X.

[0084] The second surface 112 b is a surface of the first edge portion 112 away from the second edge portion 122 along the first direction X. The second surface 112 b is perpendicular to the first direction X.

[0085] The first side surface 112 c is a side surface connecting an edge of the first surface 112 a away from the accommodating cavity 101 and an edge of the second surface 112 b away from the accommodating cavity 101 .

[0086] The first connecting member 13 is a component used to connect the first box body 11 and the second box body 12 and fix them.

[0087] The first connecting member 13 is a bending structure, that is, a portion of the first connecting member 13 can be bent or folded relative to another portion of the first connecting member 13 , so that the first connecting member 13 bypasses the first side surface 112 c to abut against the second surface 112 b .

[0088] Reference Figure 4 and Figure 5 After the first box body 11 and the second box body 12 are attached along the first direction X to form the accommodating cavity 101 for placing the battery cell 20, the first connecting member 13 is bent relative to the second edge portion 122 so that the first connecting member 13 bypasses the first side surface 112c, and then a portion of the first connecting member 13 is bent under the action of an external force to abut against the second surface 112b, thereby limiting the first box body 11 relative to the second box body 12 in the first direction X.

[0089] Thereby, after the first box body 11 and the second box body 12 are covered, the first connecting member 13 can be bent to fix the first box body 11 and the second box body 12, thereby improving the convenience of assembling the first box body 11 and the second box body 12.

[0090] According to some embodiments of the present application, optionally, referring to Figure 6 , and please refer to Figure 7 and Figure 8 , Figure 6 This is a schematic diagram of the structure of the first box 11 in some embodiments of the present application. Figure 7 for Figure 4 The cross-sectional view of B1-B1, Figure 8 for Figure 4 The cross-sectional view of B2-B2 in Figure 1. Figure 6 The first edge portion 112 is provided with a first limiting notch 112d, and the first limiting notch 112d is formed by the first side surface 112c being recessed toward the direction close to the accommodating cavity 101, referring to Figure 7 and Figure 8 The first connecting member 13 is inserted into the first limiting notch 112d.

[0091] It can be understood that the direction in which the first limiting notch 112d is recessed is related to the extending direction of the first side surface 112c where the first limiting notch 112d is located.

[0092] When the first limiting notch 112d is located on the first side surface 112c extending along the third direction Z, the first side surface 112c is recessed along the second direction Y toward the accommodating cavity (101) to form the first limiting notch 112d.

[0093] When the first limiting notch 112d is located on the first side surface 112c extending along the second direction Y, the first side surface 112c is recessed along the third direction Z toward the accommodating cavity (101) to form the above-mentioned first limiting notch 112d.

[0094] In the above solution, the first limiting notch 112d can be opened on the first side surface 112c by being integrally formed with the first edge portion 112, or by subsequent processing of the first edge portion 112, such as stamping, welding, cutting, etc.

[0095] It is understandable that the first limiting notch 112d should be compatible with the first connecting member 13 , that is, the shape and size of the cross section of the first limiting notch 112d in the first direction X can be determined according to the specific shape and size of the first connecting member 13 .

[0096] When the first limiting notch 112d is located on the first side surface 112c extending along the third direction Z, the first connecting member 13 is inserted into the first limiting notch 112d so that the first connecting member 13 abuts against two sides of the first limiting notch 112d distributed along the third direction Z, thereby limiting the movement of the first limiting notch 112d in the third direction Z relative to the first connecting member 13.

[0097] When the first limiting notch 112d is located on the first side surface 112c extending along the second direction Y, the first connecting member 13 is inserted into the first limiting notch 112d so that the first connecting member 13 abuts against two sides of the first limiting notch 112d distributed along the second direction Y, thereby limiting the movement of the first limiting notch 112d in the second direction Y relative to the first connecting member 13.

[0098] By inserting the first connecting member 13 into the corresponding first limiting notch 112 d , the relative movement between the first box body 11 and the second box body 12 in a direction perpendicular to the first direction X is limited.

[0099] According to some embodiments of the present application, optionally, please continue to refer to Figure 7 and Figure 8 The first connecting member 13 may include a first section 131 and a second section 132. The first section 131 is disposed in the first limiting notch 112d, one end of the first section 131 is connected to the second edge portion 122, the other end of the first section 131 is connected to the second section 132, and the second section 132 is in contact with the second surface 112b. Along the first direction X, the first edge portion 112 is sandwiched between the second edge portion 122 and the second section 132.

[0100] The first section 131 is a portion where the first connecting member 13 is connected to the second edge portion 122 .

[0101] The second section 132 is a portion of the first connecting member 13 away from the second edge portion 122 , and its function is to abut against the second surface 112 b .

[0102] It is understandable that the first section 131 should be able to be bent relative to the second edge portion 122, so that the first section 131 can be bent relative to the second edge portion 122 to be located in the corresponding first limiting notch 112d, so as to limit the relative movement of the first box body 11 and the second box body 12 in a direction perpendicular to the first direction X. The second section 132 should be able to be bent relative to the first section 131, so that the second section 132 can abut against the second surface 112b, thereby cooperating with the first edge portion 112 to limit the movement of the second edge portion 122 in the first direction X.

[0103] In the above solution, the first edge portion 112 and the first section 131 may be connected in a non-detachable installation manner, for example, by welding, integral molding, etc.

[0104] The second section 132 is bent relative to the first section 131 so that the second section 123 cooperates with the second edge portion 122 to clamp the first edge portion 112 in the first direction X, thereby conveniently limiting the movement of the first box body 11 in the first direction X relative to the second box body 12.

[0105] According to some embodiments of the present application, optionally, the first connecting member 13 and the second edge portion 122 are integrally formed.

[0106] The first connector 13 and the second edge portion 122 may be integrally formed, or the first connector 13, the second edge portion 122 and the second body 121 may be integrally formed. That is, the first connector 13, the second edge portion 122 and the second body 121 are integrally formed to form an integral structure. Integral forming includes but is not limited to casting, stamping, etc.

[0107] The first connecting member 13 is integrally formed with the second edge portion 122 and the second body 121 , which facilitates the manufacturing of the second box body 12 and helps to improve the structural strength of the second edge portion 122 and the first connecting member 13 , thereby improving the connection strength between the first box body 11 and the second box body 12 .

[0108] According to some embodiments of the present application, optionally, referring to Fig. 9 , and please refer to Figures 10 to 12 , Fig. 9 This is a schematic diagram of the exploded structure of the box 10 including the second connecting member 14 in some embodiments of the present application. Fig.10 This is a schematic diagram of the structure of the box 10 including the second connecting member 14 in some embodiments of the present application. Fig.11 for Fig.10 The cross-sectional view of C1-C1, Fig.12 for Fig.10In some embodiments, optionally, the second edge portion 122 has a third surface 122a facing the first edge portion 112, a fourth surface 122b away from the first edge portion 112, and a second side surface 122c connecting the third surface 122a and the fourth surface 122b. The box body 10 also includes a second connecting member 14. The second connecting member 14 is used to connect the first edge portion 112 and the second edge portion 122. The second connecting member 14 is a bent structure, the second connecting member 14 is connected to the first edge portion 112, and bypasses the second side surface 122c to abut against the fourth surface 122b.

[0109] The third surface 122 a is a surface of the second edge portion 122 facing the first edge portion 112 along the first direction X, and the third surface 122 a is perpendicular to the first direction X.

[0110] The fourth surface 122 b is a surface of the second edge portion 122 away from the first edge portion 112 along the first direction X, and the fourth surface 122 b is perpendicular to the first direction X.

[0111] The second side surface 122 c is a side surface connecting an edge of the third surface 122 a away from the accommodating cavity 101 and an edge of the fourth surface 122 b away from the accommodating cavity 101 .

[0112] The second connecting member 14 is a component used to connect the first box body 11 and the second box body 12 and fix them.

[0113] The second connecting member 14 is a bending structure, that is, a portion of the second connecting member 14 can be bent or folded relative to another portion of the second connecting member 14 , so that the second connecting member 14 bypasses the second side surface 122c to abut against the fourth surface 122b.

[0114] Reference Figures 10 to 12 After the first box body 11 and the second box body 12 are attached along the first direction X to form the accommodating cavity 101 for placing the battery cell 20, the second connecting member 14 is bent relative to the first edge portion 112 so that the second connecting member 14 bypasses the second side surface 122c, and then a portion of the second connecting member 14 is bent under the action of an external force to abut against the fourth surface 122b, thereby fixing the second box body 12 relative to the first box body 11 in the first direction X.

[0115] Thereby, after the first box body 11 and the second box body 12 are covered, the first connecting member 13 and the second connecting member 14 are bent so that a portion of the second connecting member 14 abuts against the fourth surface 122b, so as to fix the second box body 12 relative to the first box body 11 in the first direction X.

[0116] According to some embodiments of the present application, optionally, continue to refer to Fig. 9 , and please continue to refer to Figures 10 to 12The second edge portion 122 is provided with a second limiting notch 122d. The second limiting notch 122d is formed by the second side surface 122c being recessed in a direction close to the accommodating cavity 101. The second connecting member 14 is passed through the second limiting notch 122d.

[0117] It can be understood that the recessed direction of the second limiting notch 122d is related to the extending direction of the second side surface 122c where the second limiting notch 122d is located.

[0118] When the second limiting notch 122d is located on the second side surface 122c extending along the third direction Z, the second side surface 122c is recessed along the second direction Y toward the accommodating cavity (not shown) to form the second limiting notch 122d.

[0119] When the second limiting notch 122d is located on the second side surface 122c extending along the second direction Y, the second side surface 122c is recessed along the third direction Z toward the accommodating cavity (not shown) to form the second limiting notch 122d.

[0120] In the above solution, the second limiting notch 122d can be opened on the second side surface 122c by being integrally formed with the second edge portion 122, or by subsequent processing of the second edge portion 122, such as stamping, welding, cutting, etc.

[0121] It is understandable that the second limiting notch 122d should be compatible with the second connecting member 14 , that is, the shape and size of the cross section of the second limiting notch 122d in the first direction X can be determined according to the specific shape and size of the second connecting member 14 .

[0122] When the second limiting notch 122d is located on the second side surface 122c extending along the third direction Z, the second connecting member 14 is inserted into the second limiting notch 122d so that the second connecting member 14 abuts against two sides of the second limiting notch 122d distributed along the third direction Z, thereby limiting the movement of the second limiting notch 122d relative to the second connecting member 14 in the third direction Z.

[0123] When the second limiting notch 122d is located on the second side surface 122c extending along the second direction Y, the second connecting member 14 is inserted into the first limiting notch 122d so that the second connecting member 14 abuts against two sides of the second limiting notch 122d distributed along the second direction Y, thereby limiting the movement of the second limiting notch 122d in the second direction Y relative to the second connecting member 13.

[0124] By inserting the second connecting member 14 into the corresponding second limiting notch 122 d , the relative movement between the first box body 11 and the second box body 12 in a direction perpendicular to the first direction X is limited.

[0125] According to some embodiments of the present application, optionally, the second connecting member 14 and the first edge portion 112 are integrally formed.

[0126] The second connector 14 and the first edge portion 112 may be integrally formed, or the second connector 14, the first edge portion 112 and the first body 111 may be integrally formed. That is, the second connector 14, the first edge portion 112 and the first body 111 are integrally formed to form an integral structure. Integral forming includes but is not limited to casting, stamping, etc.

[0127] The second connecting member 14 and the first edge portion 112 are integrally formed, which facilitates the manufacturing of the first box body 11 and is also beneficial to improving the structural strength of the first edge and the second connecting member 14 , thereby improving the connection strength between the first box body 11 and the second box body 12 .

[0128] According to some embodiments of the present application, optionally, continue to refer to Fig.10 A plurality of second connecting members 14 are provided. Along the circumference of the box body 10 , the first connecting members 13 and the second connecting members 14 are alternately arranged, and each first connecting member 13 and the second connecting member 14 adjacent thereto are spaced apart.

[0129] The circumference of the box body 10 refers to the edge of any cross section of the first edge portion 112 or the second edge portion 122 along the first direction X.

[0130] Four, five or even more second connecting members 14 may be provided. The plurality of second connecting members 14 may increase the abutting area of ​​the fourth surface 122 b , thereby improving the stability of the connection between the first box body 11 and the second box body 12 .

[0131] A plurality of second connecting members 14 may be arranged at intervals along the circumference of the box body 10 so that the first box body 11 and the second box body 12 are relatively fixed.

[0132] Reference Fig.10 A first connecting member 13 may be disposed between two adjacent second connecting members 14 to improve the force uniformity of the first edge portion 112 and the second edge portion 122 , thereby improving the stability of the connection between the first box body 11 and the second box body 12 .

[0133] The plurality of first connectors 13 and second connectors 14 are alternately arranged along the circumference of the box body 10, so that when the first box body 11 and the second box body 12 are subjected to external force, the first box body 11 and the second box body 12 are subjected to force uniformly, thereby reducing the risk of connection failure. This is beneficial for providing a stable and sealed working environment for the battery cell 20 located in the accommodating cavity 101.

[0134] According to some embodiments of the present application, optionally, referring to Fig.13 , and please refer to Fig.14 and Fig.15 , Fig.13 This is a schematic diagram of the structure of the box 10 in some embodiments of the present application. Fig.14 for Fig.13 The cross-sectional view of D1-D1 in the figure, Fig.15 for Fig.13 The second edge portion 122 has a third surface 122a facing the first edge portion 112, a fourth surface 122b facing away from the first edge portion 112, and a second side surface 122c connecting the third surface 122a and the fourth surface 122b. The first connecting member 13 bypasses the first side surface 112c and the second side surface 122c, and abuts against the second surface 112b and the fourth surface 122b, respectively.

[0135] The third surface 122 a is a surface of the second edge portion 122 facing the first edge portion 112 along the first direction X, and the third surface 122 a is perpendicular to the first direction X.

[0136] The fourth surface 122 b is a surface of the second edge portion 122 away from the first edge portion 112 along the first direction X, and the fourth surface 122 b is perpendicular to the first direction X.

[0137] The second side surface 122 c is a side surface connecting an edge of the third surface 122 a away from the accommodating cavity 101 and an edge of the fourth surface 122 b away from the accommodating cavity 101 .

[0138] The first connecting member 13 is a component used to connect and fix the first box body 11 and the second box body 12 .

[0139] The first connecting member 13 is a bending structure, that is, the two ends of the first connecting member 13 can be bent or folded relative to the middle part of the first connecting member 13, so that the two ends of the first connecting member 13 are bent relative to the middle part of the first connecting member 13 so that the two ends of the first connecting member 13 are respectively abutted against the second surface 112b and the fourth surface 122b, thereby fixing the first box body 11 and the second box body 12 in the first direction X.

[0140] The two ends of the first connecting member 13 refer to the two ends in the extending direction of the first connecting member 13 .

[0141] The first connecting member 13 is bent so that two ends of the first connecting member 13 in the extending direction are respectively in contact with the second surface 112 b and the fourth surface 122 b , so as to conveniently fix the second box body 12 relative to the first box body 11 .

[0142] According to some embodiments of the present application, optionally, referring to Fig.14 or Fig.15The first edge portion 112 is provided with a first limiting notch 112e, which is formed by the first side surface 112c being recessed toward the accommodating cavity 101. The second edge portion 122 is provided with a second limiting notch 122e, which is formed by the second side surface 122c being recessed toward the accommodating cavity 101. The first connecting member 13 is provided through the first limiting notch 112e and the second limiting notch 122e.

[0143] It can be understood that the first limiting notch 112e and the second limiting notch 122e should correspond to each other, the direction of the first limiting notch 112e being recessed is related to the extension direction of the first side surface 112c where the first limiting notch 112e is located, and the direction of the second limiting notch 122e being recessed is related to the extension direction of the second side surface 122c where the second limiting notch 122e is located.

[0144] When the first limiting notch 112e is located on the first side surface 112c extending along the third direction Z, the first side surface 112c is recessed along the second direction Y toward the accommodating cavity (not shown in the figure) to form the first limiting notch 112e. When the second limiting notch 122e is located on the second side surface 122c extending along the third direction Z, the second side surface 122c is recessed along the second direction Y toward the accommodating cavity (not shown in the figure) to form the second limiting notch 122e.

[0145] When the first limiting notch 112e is located on the first side surface 112c extending along the second direction Y, the first side surface 112c is recessed in a direction close to the accommodating cavity (not shown in the figure) along the third direction Z to form the first limiting notch 112e. When the second limiting notch 122e is located on the second side surface 122c extending along the second direction Y, the second side surface 122c is recessed in a direction close to the accommodating cavity (not shown in the figure) along the third direction Z to form the second limiting notch 122e.

[0146] In the above solution, the first limiting notch 112e can be formed integrally with the first edge portion 112 and formed on the first side surface 112c, or formed on the first side surface 112c by subsequent processing of the first edge portion 112, such as stamping, welding, cutting, etc. The second limiting notch 122e can be formed integrally with the second edge portion 122 and formed on the second side surface 122c, or formed on the second side surface 122c by subsequent processing of the second edge portion 122, such as stamping, welding, cutting, etc.

[0147] In the above solution, the first connecting member 13 and any one of the second surface 112b and the fourth surface 122b can be connected in a non-detachable installation manner, for example, by welding, integral molding, etc.

[0148] It can be understood that the first limiting notch 112e and the second limiting notch 122e should be matched with the first connecting member 13. When the first limiting notch 112e is located on the first side surface 112c extending along the third direction Z, and the second limiting notch 122e is located on the second side surface 122c extending along the third direction Z, the first connecting member 13 is inserted into the first limiting notch 112e and the second limiting notch 122e and abuts against both sides of the first limiting notch 112e and the second limiting notch 122e distributed along the third direction Z, so as to limit the movement of the first limiting notch 112e and the second limiting notch 122e in the third direction Z.

[0149] When the first limiting notch 112e is located on the first side surface 112c extending along the second direction Y, and the second limiting notch 122e is located on the second side surface 122c extending along the second direction Y, the first connecting member 13 is inserted into the first limiting notch 112e and the second limiting notch 122e and abuts against two sides of the first limiting notch 112e and the second limiting notch 122e distributed along the second direction Y, so as to limit the movement of the first limiting notch 112e and the second limiting notch 122e in the second direction Y.

[0150] The second box body 12 and the first box body 11 are conveniently fixed in a direction perpendicular to the first direction X by inserting the first connecting member 13 into the corresponding first limiting notch 112 e and the second limiting notch 122 e.

[0151] According to some embodiments of the present application, optionally, referring to Fig.14 or Fig.15 , and please refer to Fig.16 , Fig.16 Schematic diagram of the structure of the first connecting member 13 in some embodiments of the present application. The first connecting member 13 includes a first section 131a, a second section 132a and a third section 133. The second section 132a abuts against the second surface 112b, the third section 133 abuts against the fourth surface 122b, and the first section 131a connects the second section 132a and the third section 133. Along the first direction X, the first edge portion 112 and the second edge portion 122 are sandwiched between the second section 132a and the third section 133.

[0152] The first section 131 a is a portion of the first connecting member 13 that connects the second section 132 a and the third section 133 .

[0153] The second section 132 a is a section of the first connecting member 13 close to the second surface 112 b , and its function is to abut against the second surface 112 b to cooperate with the third section 133 to limit the first edge portion 112 and the second edge portion 122 in the first direction X.

[0154] The third section 133 is a section of the first connecting member 13 close to the fourth surface 122 b and functions to abut against the fourth surface 122 b to cooperate with the second section 132 a to limit the first edge portion 112 and the second edge portion 122 in the first direction X.

[0155] Thus, the second section 132a and the third section 133 are bent relative to the first section 131a, so that the first box body 11 and the second box body 12 can be conveniently fixed in the first direction X.

[0156] According to some embodiments of the present application, optionally, please continue to refer to Fig.14 or Fig.15 , and please continue to refer to Fig.16 The second surface 112b is provided with a first limiting hole 112f, and the fourth surface 122b is provided with a second limiting hole 122f. The first connecting member 13 further includes a fourth section 134 and a fifth section 135. The fourth section 134 is connected to an end of the second section 132a away from the first section 131a, and the fourth section 134 is inserted into the first limiting hole 112f. The fifth section 135 is connected to an end of the third section 133 away from the first section 131a, and the fifth section 135 is inserted into the second limiting hole 122f.

[0157] The first limiting hole 112f is a through hole or a blind hole opened on the second surface 112b, and the axis of the first limiting hole 112f is parallel to the first direction X.

[0158] The second limiting hole 122f is a through hole or a blind hole opened on the fourth surface 122b. The axis of the first limiting hole 122f is parallel to the first direction X.

[0159] The shape and size of the cross section of the first limiting hole 112f and the second limiting hole 122f in the first direction X can be determined according to the specific shape and size of the fourth section 134 and the fifth section 135, that is, the shape of the cross section of the first limiting hole 112f and the first limiting hole 112f in the first direction X includes but is not limited to a rectangle or a circle according to the shape of the fourth section 134 and the fifth section 135.

[0160] In the above solution, the first limiting hole 112f can be opened on the second surface 112b by being integrally formed with the first edge portion 112, or by subsequent processing of the first edge portion 112, such as stamping, cutting, etc.

[0161] The second limiting hole 122f can be formed on the fourth surface 122b by being integrally formed with the second edge portion 122, or can be formed on the second surface 122b by subsequent processing of the second edge portion 122, such as stamping, cutting, etc.

[0162] The fourth section 134 is a portion of the first connecting member 13 connected to an end of the second section 132a away from the first section 131a, and its function is to be inserted into the first limiting hole 112f so that the first connecting member 13 is fixed relative to the first edge portion 112 in a direction perpendicular to the first direction X. Then, it cooperates with the fifth section 135 to limit the movement of the first box body 11 and the second box body 12 in a direction perpendicular to the first direction X.

[0163] The fifth section 135 is a portion of the first connecting member 13 connected to an end of the third section 133 away from the first section 131a, and its function is to be inserted into the second limiting hole 122f so that the first connecting member 13 is fixed relative to the second edge portion 112 in a direction perpendicular to the first direction X. Then, it cooperates with the fourth section 134 to limit the movement of the first box body 11 and the second box body 12 in a direction perpendicular to the first direction X.

[0164] Thereby, the second section 132a and the third section 133 are bent relative to the first section 131a, so as to drive the fourth section 134 and the fifth section 135 to be inserted into the first limiting hole 112f and the second limiting hole 122f respectively, so as to conveniently fix the first box body 11 and the second box body 12.

[0165] According to some embodiments of the present application, optionally, a plurality of first connectors 13 are provided, and the plurality of first connectors 13 are arranged at intervals along the circumference of the box body 10. The plurality of first connectors 13 are arranged at intervals around the circumference of the box body 10.

[0166] The circumference of the box body 10 refers to the edge of any cross section of the first edge portion 112 or the second edge portion 122 along the first direction X.

[0167] The plurality of first connectors 13 are arranged at intervals along the circumference of the box body 10 to improve the stability of the connection between the first box body 11 and the second box body 12. The first box body 11 and the second box body 12 are subjected to uniform force, which reduces the possibility of connection failure. This is beneficial for providing a stable and sealed working environment for the battery cell 20 located in the accommodating cavity 101.

[0168] According to some embodiments of the present application, optionally, the first connecting member 13 is made of aluminum, aluminum alloy or steel, and the first box body 11 and the second box body 12 are made of aluminum, aluminum alloy or steel.

[0169] Aluminum, aluminum alloys and steel are existing materials. Aluminum can be a metal material made of aluminum alone, aluminum alloys can be alloy materials composed of aluminum as the main material, and steel is a general term for iron-carbon alloys with a certain carbon content.

[0170] When the first box body 11 and the second box body 12 are made of steel, the box body 10 has good strength, which is beneficial for providing a stable and sealed working environment for the battery cells 20 located in the accommodating cavity 101 .

[0171] When the first box body 11 and the second box body 12 are made of aluminum or aluminum alloy, the box body 10 has a certain deformation ability, which can provide a buffering effect for the battery 100 under impact and vibration conditions. In addition, aluminum or aluminum alloy of the same volume is lighter than steel, which is beneficial to reducing the weight of the battery 100.

[0172] When the first connecting member 13 is made of steel, the first box body 11 and the second box body 12 have better connection strength, reducing the risk of connection failure of the first box body 11 and the second box body 12 when subjected to external force. This is beneficial for providing a stable and sealed working environment for the battery cell 20 located in the accommodating cavity 101.

[0173] When the first connecting member 13 is made of aluminum or aluminum alloy, aluminum or aluminum alloy of the same volume is lighter than steel, which is beneficial to reducing the weight of the battery 100 .

[0174] According to some embodiments of the present application, referring to Figures 3 to 8 The present application provides a box body 10, and a plurality of first connecting members 13 distributed around the circumference of the box body 10 are provided on the second edge portion 122 of the second box body 12. A plurality of first limiting notches 112d are provided on the first side surface 112c of the first box body 11, and the first limiting notches 112d correspond to the plurality of first connecting members 13 one by one. After the first box body 11 and the second box body 12 are covered, the first section 131 of the first connecting member 13 is bent relative to the second edge portion 122 so that the first section 131 is inserted into the corresponding first limiting notch 112d, and then the second section 132 is bent relative to the first section 131 so that the second section 132 abuts against the second surface 112b. In this way, the first box body 11 and the second box body 12 are relatively fixed to provide a stable and sealed working environment for the battery cells 20 located in the accommodating cavity 101.

[0175] According to some embodiments of the present application, referring to Figures 9 to 12The present application provides a box 10, wherein a plurality of first connecting members 13 distributed around the circumference of the box 10 are arranged on the second edge portion 122 of the second box 12. A plurality of second connecting members 14 distributed around the circumference of the box 10 are arranged on the first edge portion 112 of the first box 11. The first connecting members 13 and the second connecting members 14 are arranged alternately around the circumference of the box 10, and each first connecting member 13 is arranged at intervals with the second connecting member 14 adjacent thereto. A plurality of first limiting notches 112d are provided on the first side surface 112c of the first box 11, and the first limiting notches 112d correspond to the first connecting members 13 one by one. A plurality of second limiting notches 122d are provided on the second side surface 122c of the second box 12, and the second limiting notches 122d correspond to the plurality of second connecting members 14 one by one. After the first box 11 and the second box 12 are covered. The first connecting member 13 is bent relative to the second edge so that a portion of the first connecting member 13 is inserted into the first limiting notch 112d. Then, another part of the first connecting member 13 is bent toward the direction close to the second surface 112b, so that another part of the first connecting member 13 is in contact with the second surface 112b. At the same time, the second connecting member 14 is bent relative to the first edge, so that a part of the second connecting member 14 is inserted into the second limiting notch 122d. Then, another part of the second connecting member 14 is bent toward the direction close to the fourth surface 122b, so that another part of the second connecting member 14 is in contact with the fourth surface 122b. So that the first box body 11 and the second box body 12 are relatively fixed, so as to provide a stable and sealed working environment for the battery cell 20 located in the accommodating cavity 101.

[0176] According to some embodiments of the present application, referring to Figures 13 to 16The present application provides a box 10, wherein a first side surface 112c of the first box 11 has a plurality of first limiting notches 112e arranged around the box 10, and a second surface 112b of the first box 11 is provided with a plurality of first limiting holes 112f, and the first limiting holes 112 correspond to the first limiting notches 112e one by one. A second side surface 122c of the second box 12 has a plurality of second limiting notches 122e arranged around the box 10. The second limiting notches 122e correspond to the first limiting notches 112e one by one. A fourth surface 122b of the second box 12 is provided with a plurality of second limiting holes 122f, and the second limiting holes 122f correspond to the second limiting notches 122e one by one. The first connecting member 13 has a fifth section 135, a third section 133, a first section 131a, a second section 132a, and a fourth section 134 connected in sequence. After the first box 11 and the second box 12 are covered. The first section 131a is inserted into the first limiting notch 112e and the second limiting notch 122e in a one-to-one correspondence, and then the second section 132a is bent relative to the first section 131a, so that the second section 132a abuts against the second surface 112b, and the fourth section 134 is inserted into the first limiting hole 112f. At the same time, the third section 133 is bent relative to the first section 131a, so that the third section 133 abuts against the fourth surface 122b, and the fifth section 135 is inserted into the second limiting hole 122f. In this way, the first box body 11 and the second box body 12 are relatively fixed to provide a stable and sealed working environment for the battery cell 20 located in the accommodating cavity (not shown in the figure).

[0177] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A box, characterized in that: include: A first box body, comprising a first main body and a first edge portion; A second box body, comprising a second main body and a second edge portion, wherein the first box body and the second box body are arranged along a first direction to enclose a receiving cavity for placing a battery cell, and the first edge portion has a first surface facing the second edge portion, a second surface away from the second edge portion, and a first side surface connecting the first surface and the second surface; a first connecting member, used to connect the first edge portion and the second edge portion; Wherein, the first connecting member is a bent structure, connected to the second edge portion, and bypasses the first side surface to abut against the second surface.

2. The box according to claim 1, characterized in that: The first edge portion is provided with a first limiting notch, the first limiting notch is formed by the first side surface being recessed in a direction close to the accommodating cavity, and the first connecting member is passed through the first limiting notch.

3. The box according to claim 2, characterized in that: The first connecting member includes a first section and a second section, the first section is inserted into the first limiting notch, one end of the first section is connected to the second edge portion, the other end of the first section is connected to the second section, and the second section abuts against the second surface; Along the first direction, the first edge portion is sandwiched between the second edge portion and the second segment.

4. The box according to claim 1, characterized in that: The first connecting member and the second edge portion are integrally formed.

5. The box according to any one of claims 1 to 4, characterized in that: The second edge portion has a third surface facing the first edge portion, a fourth surface away from the first edge portion, and a second side surface connecting the third surface and the fourth surface; The box also includes: a second connecting member, used to connect the first edge portion and the second edge portion; Wherein, the second connecting member is a bent structure, the second connecting member is connected to the first edge portion, and goes around the second side surface to abut against the fourth surface.

6. The box according to claim 5, characterized in that: The second edge portion is provided with a second limiting notch, the second limiting notch is formed by the second side surface being recessed in a direction close to the accommodating cavity, and the second connecting member is passed through the second limiting notch.

7. The box according to claim 5, characterized in that: The second connecting member is integrally formed with the first edge portion.

8. The box according to claim 5, characterized in that: The second connecting member is provided in plurality; Along the circumference of the box body, the first connecting members and the second connecting members are alternately arranged, and each of the first connecting members is spaced apart from the second connecting member adjacent thereto.

9. The box according to claim 1, characterized in that: The second edge portion has a third surface facing the first edge portion, a fourth surface away from the first edge portion, and a second side surface connecting the third surface and the fourth surface; The first connecting member bypasses the first side surface and the second side surface and abuts against the second surface and the fourth surface respectively.

10. The box according to claim 9, characterized in that: The first edge portion is provided with a first limiting notch, and the first limiting notch is formed by the first side surface being recessed in a direction close to the accommodating cavity; The second edge portion is provided with a second limiting notch, and the second limiting notch is formed by the second side surface being recessed in a direction close to the accommodating cavity; The first connecting member is inserted into the first limiting notch and the second limiting notch.

11. The box according to claim 9, characterized in that: The first connecting member includes a first section, a second section and a third section, the second section abuts against the second surface, the third section abuts against the fourth surface, and the first section connects the second section and the third section; Along the first direction, the first edge portion and the second edge portion are sandwiched between the second section and the third section.

12. The box according to claim 11, characterized in that: The second surface is provided with a first limiting hole, and the fourth surface is provided with a second limiting hole; The first connecting member also includes a fourth section and a fifth section, the fourth section is connected to an end of the second section away from the first section, and the fourth section is inserted into the first limiting hole; the fifth section is connected to an end of the third section away from the first section, and the fifth section is inserted into the second limiting hole.

13. The box according to claim 1, characterized in that: A plurality of the first connecting members are provided, and the plurality of the first connecting members are arranged at intervals along the circumference of the box body.

14. The box according to claim 1, characterized in that: The first connecting member is made of aluminum, aluminum alloy or steel, and / or the first box body and the second box body are made of aluminum, aluminum alloy or steel.

15. A battery, characterized in that: It comprises a battery cell and a box body as described in any one of claims 1 to 14, wherein the battery cell is arranged in the accommodating cavity.

16. An electrical equipment, characterized in that: Comprising the battery of claim 15, the battery being used to provide electrical energy.

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