CN221102303U

CN221102303U - Battery box, battery and electric equipment

Info

Publication number: CN221102303U
Application number: CN202420576113.5U
Authority: CN
Inventors: 魏杰; 可庆朋; 王天军; 苗慧敏; 潘鑫
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2024-03-25
Filing date: 2024-03-25
Publication date: 2024-06-07
Anticipated expiration: 2034-03-25

Abstract

The application belongs to the technical field of batteries, and provides a battery box, a battery and electric equipment, wherein the battery box comprises at least two box structures for butt joint, a sealing piece and a shielding piece; the box body structure is enclosed to form an inner cavity for accommodating the battery; the sealing piece is arranged between the butt joint surfaces of the two box body structures which are in butt joint; the shielding piece comprises a first shielding part, the first shielding part is arranged on one side of the sealing piece facing the inner cavity, and the first shielding part is used for separating the inner cavity and the sealing piece. The purpose is to reduce the risk of the gasket being melted through by the high-temperature and high-pressure gas generated when thermal runaway of the battery occurs.

Description

Battery box, battery and electric equipment

Technical Field

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

Background

Most of the batteries in the prior market are of a section box body structure, and an upper cover and a bottom guard plate are respectively arranged on the upper part and the lower part of the section box body to form an integral sealing structure.

Normally, the profile box is respectively butted with the upper cover and the bottom guard plate through the upper side and the lower side of the flange surface, a sealing gasket or sealant is arranged at the butted position, and then the upper side and the lower side of the profile box are respectively compressed and sealed with the upper cover and the bottom guard plate.

This form has a problem in that high temperature and high pressure gas is generated when thermal runaway occurs in the battery, and the gasket and the sealant cannot withstand such high temperature, and directly melt and burst open fire, resulting in thermal runaway protection failure.

Disclosure of utility model

In view of the above problems, the present application provides a battery case, a battery and electric equipment, which aim to reduce the risk of the sealing gasket being melted through by high-temperature and high-pressure gas generated when the battery is out of control.

In order to solve the above problems, in a first aspect, the present application provides a battery case comprising:

At least two box structures for butt joint, wherein the box structures enclose an inner cavity for accommodating a battery;

the sealing piece is arranged between the butt joint surfaces of the two box body structures which are in butt joint; and

The shielding piece comprises a first shielding part, the first shielding part is arranged on one side, facing the inner cavity, of the sealing piece, and the first shielding part is used for separating the inner cavity and the sealing piece. Due to the arrangement of the shielding piece, the shielding piece can shield the inner side of the sealing piece, so that high-temperature and high-pressure gas generated by the uncontrolled battery in the inner cavity can not directly impact the sealing piece, the risk that the sealing piece is broken and burnt is reduced, and the risk of battery safety accidents is reduced.

In an embodiment of the first aspect, the first shielding portion is a first rib protruding on the abutting surface of the box body structure, and the first rib is attached to the sealing element. The shielding piece adopts the convex rib form, has simple structure and convenient arrangement, and only needs to cover the whole sealing piece, so the shielding piece is arranged in a rib shape, and the shielding piece does not need to be arranged wider and thicker. The structure form of the convex rib is very suitable for shielding operation and has good effect.

In an embodiment of the first aspect, the shielding member further includes a second shielding portion disposed on the abutting surface, the second shielding portion is a second protruding rib, the second protruding rib is disposed on a side of the sealing member facing away from the inner cavity, the sealing member is sandwiched between the first protruding rib and the second protruding rib, and two sides of the sealing member are respectively attached to the first protruding rib and the second protruding rib. Due to the provision of the second convex ribs, the sealing element is arranged between the first convex ribs and the second convex ribs, so that the stability of the sealing element can be effectively ensured, dislocation cannot occur in the extrusion process, and due to the provision of the second convex ribs, the protection is further increased, which is equivalent to the addition of a defense line, and the high-temperature high-pressure gas is prevented from rushing out of the box body.

In one embodiment of the first aspect, the shield further comprises a connecting section between and connected to the first bead and the second bead to form a channel structure, and the seal is located within the channel structure. The setting of linkage segment has formed a whole with first protruding muscle and second protruding muscle to formed U-shaped groove form structure, sealing member can place in the U-shaped inslot like this, makes sealing member's stability better.

In one embodiment of the first aspect, the shield is of unitary construction with the housing structure. The integral structure makes overall structure more firm, can not take place the dislocation, can fix a position the sealing member well to through injection moulding's mode overall construction, processing is convenient simple.

In one embodiment of the first aspect, the shield is a split structure with the housing structure, and the shield is adhered to the interface. The split type structure easy dismounting can adjust the position of first protruding muscle and second protruding muscle according to the size of sealing member to can directly realize connecting through the bonding, the connection operation is very simple and convenient.

In one embodiment of the first aspect, the shield is of a composite material or an injection molded material. The shielding piece is made of materials with good high temperature resistance and insulating performance, has certain mechanical strength and has good use effect.

In one embodiment of the first aspect, the abutting surface is provided with a strip-shaped groove, the sealing element is assembled in the strip-shaped groove, and a groove wall of one side of the strip-shaped groove, which is close to the inner cavity, forms a first shielding part. The first portion that shelters from is the cell wall, and the sealing member assembly is in the bar inslot, and the design leakproofness of this kind of form is better, and the seting up of bar inslot is simple easy operation more, and the sealing member has just formed the shielding naturally when placing in the bar inslot, in addition the butt joint face of butt joint, all has all formed the shielding to the sealing member from the sealing member all around, and the effect is better.

In one embodiment of the first aspect, the shield further comprises a second shield portion, the second shield portion being a wall of the slot on the other side of the slot remote from the lumen. The sealing element is completely positioned in the strip-shaped groove, the shielding element has a complete shielding effect on the sealing element, and the risk that the sealing element is impacted by high-temperature and high-pressure gas in the inner cavity and acted by external stress is reduced.

In one embodiment of the first aspect, the case structure includes a lower case provided with an opening, and the battery case further includes a frame-shaped supporting frame sleeved on an outer side of the lower case to support the lower case. The structural strength of the lower box body is enhanced by the arrangement of the supporting framework, and due to the arrangement of the supporting framework, the supporting framework can be hoisted when the battery pack is hoisted and transported, so that the battery pack has better acting points, the lower box body is not required to be hoisted directly, and the abrasion risk of the lower box body caused by hoisting operation is reduced.

In one embodiment of the first aspect, the support skeleton may be one of an aluminum alloy skeleton, a copper alloy skeleton, a titanium alloy skeleton, a zinc alloy skeleton. The aluminum alloy has low density, but has higher strength, is close to or exceeds that of high-quality steel, has good plasticity, can be processed into various sectional materials due to the good plasticity, and is convenient for processing and manufacturing supporting frameworks with various shapes. The aluminum alloy also has good corrosion resistance. The copper alloy framework, the titanium alloy framework and the zinc alloy framework have good performance.

In one embodiment of the first aspect, the lower case is made of one or more of carbon fiber, boron fiber, and glass fiber. The battery box body has the effect of simplifying the structure, reduces the weight and increases the energy density of the battery.

In an embodiment of the first aspect, the supporting framework comprises two first frame edges arranged oppositely and two second frame edges arranged oppositely, and two ends of the first frame edges are respectively connected with one second frame edge to form a frame-shaped structure. The first frame edges are arranged to be two opposite sides, the second frame edges are arranged to be two opposite sides, so that symmetrical support is formed for the supporting framework, the structures of the two first frame edges are the same and are used for supporting two opposite sides of the lower box body, the structures of the two second frame edges are the same and are used for supporting the other opposite sides of the lower box body, the overall supporting force of the supporting framework is balanced and coordinated, and the stability of the lower box body and the internal battery monomers is guaranteed.

In one embodiment of the first aspect, the first frame edge includes a middle plate, and a first folding edge and a second folding edge connected to two ends of the middle plate, the first folding edge is used for supporting a butt joint surface of the lower box body, the second folding edge is used for supporting a bottom of the lower box body, and the middle plate is attached to a side portion of the lower box body. The first frame edge is provided, the structural form of the first frame edge is matched with the shape of the side part of the lower box body, and the top and the bottom of the side part of the lower box body can be well towed to form a stable support.

In an embodiment of the first aspect, an inner groove is formed in an outer wall of the lower case, and the second frame edge is embedded in the inner groove. The shape of second frame limit is provided, and second frame limit structure is simpler, and easy processing adopts logical long body of rod structure, simultaneously in order to strengthen the supporting effect to lower box, adopts the mode of box under two face laminating, top surface and side, has set up the indent for this on lower box, can realize the support laminating of two faces after the second frame limit holds the entering, and stability is better.

In one embodiment of the first aspect, one or more of bonding, clamping and fastening connection are formed between the first frame edge and the lower box body; and/or one or more of bonding, clamping and fastening connection are arranged between the second frame edge and the lower box body. The connection strength between the lower box body and the supporting framework is enhanced, the connection in a fastening connection mode is adopted, simplicity and convenience are realized, the reliability is high, and the connection strength between the lower box body and the supporting framework can be enhanced.

In an embodiment of the first aspect, a hoisting structure is further connected to the support frame, the hoisting structure being for hoisting an external hoisting device. The hoisting structure is beneficial to hoisting and transporting the battery pack, and does not damage the battery pack.

In a second aspect, the application also provides a battery, comprising the battery box body. Due to the battery box body provided by the embodiment, the safety of the battery is better, the leakage accident from the sealing piece can not occur, and the energy density of the battery can be improved.

In a third aspect, the present application further provides an electric device, including the battery provided by the foregoing embodiment. The running stability and the persistence of the electric equipment are improved.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application 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 application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

FIG. 1 is a schematic illustration of a vehicle according to some embodiments of the application;

Fig. 2 is a schematic structural diagram of a battery according to some embodiments of the present application;

FIG. 3 is a schematic view of a battery case showing a case structure according to some embodiments of the present application;

FIG. 4 is a schematic view of the construction of the shield of FIG. 3;

FIG. 5 is a schematic view of the structure of the case (lower case) in FIG. 3;

FIG. 6 is a schematic view of the support frame of FIG. 3;

FIG. 7 is a schematic top view of FIG. 3;

FIG. 8 is a cross-sectional view taken along line a-a of FIG. 7;

FIG. 9 is a cross-sectional view taken along line b-b of FIG. 7;

FIG. 10 is an enlarged view of FIG. 8 at A;

Fig. 11 is an enlarged view at B in fig. 9.

Reference numerals in the specific embodiments are as follows:

1000. a vehicle;

100. a battery; 200. a controller; 300. a motor;

10. A box structure; 11. a seal; 12. a lower box body; 13. a support skeleton; 14. a first shielding portion; 15. a second shielding portion; 16. a first frame edge; 161. a first hem; 162. a second flanging; 163. an intermediate plate; 17. a second frame edge; 18. glue solution; 19. a bolt; 20. a hoisting structure; 21. an inner groove; 22. a thread sleeve; 23. a shield; 24. a butt joint surface; 25. a connection section; 26. and an upper box body.

Detailed Description

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

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

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

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

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

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

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

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

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

When the battery cell works, a great amount of heat can be generated due to the chemical reaction between the positive electrode and the negative electrode of the battery cell and the electrolyte in the battery cell. When the battery is short-circuited, overcharged and the like, the heat generated by the chemical reaction inside the battery monomer far exceeds a normal value, and thermal runaway occurs, so that a large amount of high-temperature and high-pressure gas is generated. I.e., there is an inevitable risk of thermal runaway during the use of the battery. When thermal runaway occurs in a battery, a large amount of high-temperature and high-pressure gas is generated, and the generated high-temperature and high-pressure gas can rapidly diffuse to various positions of the battery and even diffuse to surrounding batteries to cause explosion of the battery.

The box is as the important structure of battery, normally, the inside battery monomer that sets up of box, box have can carry out the structure of pressure release exhaust, when thermal runaway takes place, through exhaust structure with high temperature high pressure gas according to the passageway of predetermineeing to reach outside the box to reduce the risk of taking place the accident, set up explosion-proof valve on the box generally, can guarantee the safety when thermal runaway takes place effectively, reduce the explosion risk.

However, the case is not a complete integral structure, and is usually formed by mutually splicing and combining a plurality of structures, and generally, the case can comprise an upper cover, a middle part and a bottom guard plate, which are mutually attached and sealed. After the sealing is realized, if the internal battery is out of control, the high-temperature and high-pressure gas can be decompressed and exhausted through the preset exhaust structure, so that the box body is required to have good sealing performance and certain strength impact resistance.

In the related art, the way of realizing the relative seal of three is that the extrusion sealing pad is usually set up in the position that the three is laminated mutually, realize the seal, but in long-term production practice and in-process of using, research and development personnel find that when carrying out extrusion sealing to the sealing pad, the sealing pad always has a part of direct face towards the inside of box, when the inside thermal runaway that takes place of box, high temperature high pressure gas must contact the sealing pad, because the material of sealing pad is soft, its shock resistance can not be as strong as the shock resistance of box by oneself to high temperature resistance is also relatively poor, so in some circumstances, the sealing pad can be burnt by high temperature and fire for high temperature high pressure gas takes place to leak at unexpected position, causes serious result.

In addition, because the traditional battery box has a large number of structures and high weight, for example, the box comprising the upper cover, the middle structure and the bottom guard plate has high weight, so that the energy density of the battery is reduced.

Based on the above consideration, the embodiment of the application provides a battery box body, which aims to properly reduce the risk of the sealing gasket being broken and burned by high-temperature high-pressure gas and increase the use safety of a battery.

The embodiment of the application also provides a battery with the battery box body provided by the embodiment, and electric equipment using the battery of the embodiment, namely electric equipment using the battery as a power supply or various energy storage systems using the battery as an energy storage element. Thus, the use safety of the electric equipment can be improved.

The electric equipment can be vehicles, mobile phones, portable equipment, notebook computers, ships, spacecraft, electric toys, electric tools and 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 application does not limit the electric equipment in particular.

The battery disclosed by the embodiment of the application can be used in electric equipment such as vehicles, ships or aircrafts, but is not limited to the electric equipment. The power supply system with the battery disclosed by the application can be used by the electric equipment, so that the use reliability of the electric equipment is improved.

For convenience of explanation, the following embodiments take the electric equipment provided by the embodiment of the present application as an example of a vehicle.

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

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

The present application also provides an embodiment of a battery, as shown in fig. 2, comprising two case structures 10, an upper case 26 and a lower case 12, respectively.

To meet different power demands, the battery 100 may include a plurality of battery cells, wherein the plurality of battery cells may be connected in series or parallel or a series-parallel connection, which refers to a mixture of series and parallel connection. Alternatively, a plurality of battery cells may be connected in series or parallel or in series-parallel to form a battery module, and then connected in series or parallel or in series-parallel to form the battery 100. That is, a plurality of battery cells may directly constitute the battery 100, or may first constitute a battery module, which then constitutes the battery 100. The battery 100 is further disposed in the electric device to provide electric energy to the electric device.

The battery 100 may include a lithium ion secondary battery, a lithium ion primary battery, a lithium sulfur battery, a sodium lithium ion battery, a sodium ion battery, a magnesium ion battery, or the like, to which the embodiment of the present application is not limited. The battery 100 may have a cylindrical shape, a flat shape, a rectangular parallelepiped shape, or other shapes, etc., which are not limited in this embodiment of the present application. The battery 100 is generally divided into three types in a packaged manner: cylindrical batteries, square batteries and soft-pack batteries.

The battery cell may be a secondary battery or a primary battery, wherein the secondary battery refers to a battery cell that can activate an active material by charging after discharging the battery cell and can be used continuously, and the primary battery refers to a battery cell that cannot activate an active material by charging after the electric energy of the battery cell is exhausted and can be used continuously. The battery cell may also be, but is not limited to, a lithium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead storage battery, and the like. The battery cell may be a cylindrical battery cell, a prismatic battery cell, a pouch battery cell, or other shaped battery cell, and the prismatic battery cell includes a square-case battery cell, a blade-shaped battery cell, a polygonal-prismatic battery cell, such as a hexagonal-prismatic battery cell, etc., and the present application is not particularly limited.

A plurality of battery cells within the battery 100 are stacked together in a certain direction. The plurality of battery cells may be arranged in a first direction and a second direction, the first direction and the second direction being perpendicular to each other.

In some embodiments of the present application, the battery 100 may include a battery case, a battery cell, and a heat exchange system, the battery cell being accommodated in the case. The battery box body is used for providing an accommodating space for the battery monomer.

As an embodiment of the battery case provided by the present application, referring to fig. 3, 4, 5 and 7, the battery case includes a case structure 10, a sealing member 11 and a shielding member 23.

Wherein, at least two box body structures 10 are arranged, the box body structures 10 are used for butt joint, and the box body structures 10 are enclosed to form an inner cavity for accommodating the battery 100; the sealing element 11 is arranged between the abutting surfaces 24 of the two abutting box structures 10, the shielding element 23 comprises a first shielding part 14, the first shielding part 14 is arranged on one side of the sealing element 11 facing the inner cavity, and the first shielding part 14 is used for separating the inner cavity from the sealing element 11.

The case structure 10 is a case-forming structure, and the case structure 10 may be understood as a cavity structure that can enclose a certain space and has an opening, for example, may be in the form of an upper case 26 and a lower case 12 that enclose up and down, or may be in the form of a left case and a right case that enclose left and right, or may be in the form of up, down, left, middle, right, or the like. The open parts between the cavity structures are matched, and the whole cavity structure can be formed in a butt joint mode, so that a complete sealed cavity space is formed. The case structure 10 provided in this embodiment may be in the form of half cases, or one third cases, or the like, or may be in the form of an upper case 26, a lower case 12, a left case, a right case, or the like, in terms of spatial distribution.

The battery case according to the present embodiment is composed of at least two case structures 10, based on the consideration of forming a complete case, and also ensuring that the battery 100 is put in.

The case structures 10 are butted with each other, that is, edges of the open portions of the case structures 10 are butted with each other, specifically, the butted surfaces 24 are provided at the edges of the open portions, and the butted surfaces 24 are provided around the open portions of the case structures 10, so that the case structures 10 can be butted with each other, thereby forming an inner cavity for accommodating the battery 100.

It will be appreciated that the abutment surface 24 is a structure located at the edge of the open portion of the box structure 10, and may be a flange or a cross-section.

In order to ensure a relative tightness between the tank structures 10, i.e. at the butt joint, a seal 11 is provided between the butt joint surfaces 24. The sealing member 11 may be made of a material having a certain elasticity and flexibility, such as rubber. When the seal 11 is arranged between two box structures 10, a sealing interface is achieved by extrusion.

The sealing element 11 may be in the form of a ring, i.e. a closed ring, i.e. without any break in the circumferential direction, forming a complete ring, in order to be able to seal over the entire circumference of the abutment surface 24 of the tank structure 10 without leakage.

In addition, in this embodiment, the shielding member 23 is also provided, the shielding member 23 is a structure capable of shielding the sealing member 11, and when the sealing member 11 is pressed between the two case structures 10, if the shielding member 23 is not provided, both sides of the sealing member 11 in a direction perpendicular to the pressing direction are in an exposed state, the outer ring side of the annular sealing member 11 is exposed from the outside of the case structure 10, and the inner ring side of the annular sealing member 11 is exposed from the inside of the case structure 10, that is, a straight-face inner cavity. In this case, therefore, a shielding member 23 is provided in the present embodiment, and the shielding member 23 is located on the abutting surface 24 of the tank structure 10, and includes the first shielding portion 14, and the first shielding portion 14 is adjacent to the inner ring side of the seal 11, so that the space between the inner ring side of the seal 11 and the inner chamber is shielded from direct impact of the high-temperature and high-pressure gas in the inner chamber by the shielding member 23.

It should be noted that, when the abutting surface 24 of the two box structures 10 abuts against the extrusion sealing member 11, the abutting surface 24 will avoid the first shielding portion 14, so as to avoid the first shielding portion 14 from blocking the abutting of the abutting surface 24, thereby affecting the extrusion force to the sealing member 11. The abutment surface 24 may be provided with a relief screen 23, for example, in some embodiments two abutment surfaces 24 may be provided, one of a larger area and one of a smaller area, and the first screen 14 may be provided on the larger area abutment surface 24.

The effect of this embodiment is that, because the shielding member 23 is disposed on the abutting surface 24, the first shielding portion 14 thereof can shield the sealing member 11 on the side of the sealing member 11 facing the inner cavity, and the high-temperature and high-pressure gas generated by the uncontrolled battery 100 in the inner cavity will not directly impact the sealing member 11, thereby reducing the risk of the sealing member 11 being broken and burning, and improving the stability of the battery 100 in use.

In some embodiments, referring to fig. 3 and 4, the first shielding portion 14 is a first rib protruding on the abutting surface 24 of the box structure 10, and the first rib is attached to the sealing member 11.

Specifically, the butt-joint surface 24 is a flange or upturn provided on the case structure 10, which corresponds to a flange surface, and the case structure 10 can be connected by butt-joint of the butt-joint surfaces 24. The present embodiment provides that the first shielding portion 14 is a first bead, wherein "first" has no special meaning, which is just a kind of identification word, and is different from the second bead. The first rib is a structure protruding from the abutting surface 24, and is rib-shaped, so it is called a rib.

The seal 11 is of a closed annular structure, so the seal 11 has an inner ring side and an outer ring side, i.e. the inner ring side having a smaller circumference and the outer ring side having a larger circumference. The inner ring side faces the inner cavity of the battery box body, and the outer ring side can face the outside of the battery box body. Since the inner ring side extends along the circumferential direction, the first shielding portion 14 is configured in a rib shape, that is, a convex rib structure, and the first convex rib is attached to the inner ring side and has the same extending direction as the inner ring side, so that the whole inner ring side is isolated from the inner cavity to form shielding.

The effect of this embodiment is that the first shielding portion 14 adopts the form of convex rib, and is simple in structure and convenient to set, and only the whole sealing member 11 needs to be shielded, so that the first shielding portion is arranged in the form of rib, and the first shielding portion does not need to be wider and thicker. The structure form of the convex rib is very suitable for shielding operation and has good effect.

In some embodiments, please continue to refer to fig. 3, 4 and 5, the shielding member 23 further includes a second shielding portion 15 disposed on the abutting surface 24, the second shielding portion 15 is a second protruding rib, the second protruding rib is disposed on a side of the sealing member 11 facing away from the inner cavity, the sealing member 11 is sandwiched between the first protruding rib and the second protruding rib, and two sides of the sealing member 11 are respectively attached to the first protruding rib and the second protruding rib.

Specifically, the second rib is further disposed on the abutting surface 24, and the second rib is also a protruding structure protruding on the abutting surface 24, the cross section of the second rib may be the same as that of the first rib, and the length of the second rib is greater than that of the first rib, because the second rib is disposed on the outer ring side of the sealing member 11, and because the length of the outer ring side is greater than that of the inner ring side, the length of the second rib is also greater than that of the first rib. The first bead and the second bead are arranged on the abutting surface 24 of one of the box structures 10, and the sealing element 11 is arranged between the first bead and the second bead, in particular, may be sandwiched between the first bead and the second bead, so that the stability of the sealing element 11 is maintained. When the two abutting surfaces 24 are abutted, the other abutting surface 24 is pressed against the sealing element 11, namely the abutting surface 24 is pressed between the two convex ribs, and the two convex ribs cannot limit the other abutting surface 24 in a pressing mode.

The effect of this embodiment is that, owing to provided the second protruding muscle, sealing member 11 sets up between first protruding muscle and second protruding muscle, can guarantee the stability of sealing member 11 effectively, can not take place the dislocation at extruded in-process to owing to set up the second protruding muscle, also further increased protectiveness, equivalent to having increased a line of defense again, avoid high temperature high pressure gas to dash out the box outside, also prevent the impact or the collision of external stress to sealing member 11 simultaneously.

It should be noted that the first ribs may be disposed on the upper case structure 10, or may be disposed on the lower case structure 10, and the second ribs may be disposed on the upper case structure 10, or may be disposed on the lower case structure 10. Alternatively, it will be appreciated that the first bead and the second bead may be disposed on the upper tank structure 10 at the same time, or may be disposed on the lower tank structure 10 at the same time.

Referring to fig. 4, in some embodiments, the shielding member 23 further includes a connecting section 25, where the connecting section 25 is located between and connected to the first and second ribs to form a channel structure, and the sealing member 11 is located in the channel structure.

Specifically, the connection section 25 may be a flat plate structure, the thickness of the connection section 25 is lower than the heights of the first and second ribs, two sides of the connection section 25 may be respectively connected to the sides of the first and second ribs, and the extension directions of the connection section 25 are the same as the extension directions of the first and second ribs, and all extend along the circumferential direction of the abutting surface 24. After this arrangement the cross-section of the shield 23 is formed in a U-shape, forming an overall annular U-shaped channel.

The effect of this embodiment is that the arrangement of the connecting section 25 forms the first bead and the second bead as a whole and forms a U-shaped groove structure, so that the sealing element 11 can be placed in the U-shaped groove, so that the stability of the sealing element 11 is better.

It should be noted that when the shutter 23 comprises the connecting section 25, the entire shutter 23 is arranged on the abutment surface 24 of one of the box structures 10.

In some embodiments, the shield 23 is of unitary construction with the housing structure 10.

Specifically, the first shielding portion 14 and/or the second shielding portion 15 may be selected to be an integral structure with the case structure 10, that is, may be injection molded together with the case structure 10 when the case structure 10 is manufactured. And when the connecting section 25 is provided, the entire shutter 23 can be injection molded as a unitary structure with the case structure 10.

Injection molding is also called injection molding, and is a molding method of injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation in operation, multiple patterns, various shapes, large size, accurate product size, easy updating of the product, and capability of forming parts with complex shapes, and is suitable for the field of mass production, products with complex shapes and other molding processing. And stirring the completely melted plastic material by a screw at a certain temperature, injecting the plastic material into a die cavity by high pressure, and cooling and solidifying the plastic material to obtain a molded product.

Or the unitary structure may be a solid structure that is fixedly connected together, as a single unit, and not connected together. In addition to injection molding, casting molding, cast molding, and the like are also possible.

The effect of this embodiment lies in that the integral type structure makes overall structure more firm, can not take place the dislocation, can fix a position sealing member 11 well to through injection moulding's mode overall structure, processing is convenient simple.

In some embodiments, the shield 23 is a split structure with the case structure 10, and the shield 23 is adhered to the abutment surface 24.

In particular, a split design may be adopted between the shielding member 23 and the case structure 10, i.e. the first shielding portion 14 and/or the second shielding portion 15 may be connected to the abutting surface 24 in a connecting manner, in particular in an adhesive manner, and when the connecting section 25 is provided, the entire shielding member 23 may be adhered to the case structure 10. In particular, glue solution 18 may be provided between the first shielding portion 14, the second shielding portion 15, the connection section 25 and the abutment surface 24 to achieve the connection.

The split type structure has the advantages that the split type structure is convenient to connect, disassemble and assemble due to the adoption of the bonding mode, and the operation is simple and convenient.

The split structure may also be a split connection between the shield 23 and the case structure 10, including but not limited to plugging, bolting, riveting, etc.

In some embodiments, the shield 23 is a composite material or an injection molded material.

The composite material may be a fiber reinforced composite material, the fibers may be carbon fibers, glass fibers, or the like, or may also be a resin composite material, and the resin may be a thermosetting resin or a thermoplastic resin.

The injection molding material can be plastic, and can be general plastic and engineering plastic.

The shielding member 23 of this embodiment is made of a material having excellent high temperature resistance and insulation properties, and has a certain mechanical strength, and has a good use effect.

In some embodiments, the abutting surface 24 is provided with a strip-shaped groove, and the sealing member 11 is assembled in the strip-shaped groove, and the groove wall of one side of the strip-shaped groove, which is close to the inner cavity, forms the first shielding part 14.

Specifically, the strip-shaped groove has a certain width and extends along a certain direction, and is formed on the abutting surface 24, and the groove bottom is lower than the surface of the abutting surface 24. The extending direction of the strip-shaped groove, that is to say the extending direction of the abutment surface 24, forms an annular groove body, while the strip-shaped groove is used for arranging the sealing element 11, and the shape of the strip-shaped groove can be adapted to the shape of the sealing element 11, and the sealing element 11 is just arranged in the strip-shaped groove.

When the above-described form is adopted, the first shielding portion 14 is a groove wall of the strip-shaped groove on the side close to the inner cavity, and the side groove wall functions as the shielding seal 11.

The effect of this embodiment is that the first shielding portion 14 is a groove wall, and the sealing member 11 is assembled in the strip groove, so that the design tightness of this form is better, the strip groove is simpler and easier to operate, when the sealing member 11 is placed in the strip groove, the sealing member 11 is naturally shielded, and the abutting joint surface 24 is equivalent to shielding the sealing member 11 from the circumferential direction of the sealing member 11, so that the effect is better.

In some embodiments, the shield 23 further comprises a second shield 15, the second shield 15 being a slot wall of the other side of the slot remote from the lumen.

Specifically, the sealing element 11 is integrally located in the strip-shaped groove, the groove wall of the other side of the strip-shaped groove far away from the inner cavity is the second shielding part 15, the second shielding part 15 shields the part of the sealing element 11 facing the outside of the box body, that is, the sealing element 11 is not exposed out of the strip-shaped groove, and the groove wall serving as the shielding element 23 can completely shield the sealing element 11.

The sealing element 11 is located in the strip-shaped groove completely, the shielding element 23 has a complete shielding effect on the sealing element 11, and the risk of the sealing element 11 being impacted by high-temperature and high-pressure gas in the inner cavity and acted by external stress is reduced.

In some embodiments, referring to fig. 3, 4, 5, 6 and 7, the case structure 10 includes a lower case 12 having an opening, and the battery case further includes a frame-shaped supporting frame 13, and the supporting frame 13 is sleeved on the outer side of the lower case 12 to support the lower case 12.

Specifically, the lower housing 12 is oriented such that the general housing structure 10 may further include an upper housing 26, the upper housing 26 and the lower housing 12 being abutted to each other to form a battery housing.

The abutment surface 24 of the lower housing 12 is provided at the edge of the opening.

The supporting framework 13 is a framework with supporting function, and the framework is a framework which is formed by splicing or connecting certain rod-shaped structures or frame-shaped structures and can play a role in supporting. In order to strengthen the strength of the lower case 12 and facilitate the operations such as lifting and transferring the battery case, the embodiment further provides a supporting frame 13, where the supporting frame 13 is frame-shaped and has a frame opening, and when the supporting frame 13 is sleeved outside the lower case 12, the inner frame edge can abut against the outer side of the lower case 12, so that the support is provided in the whole circumferential direction of the lower case 12.

The effect of this embodiment lies in, the structural strength of lower box 12 has been strengthened in the setting of braced frame 13 to owing to set up braced frame 13, can hoist and mount braced frame 13 when hoist and mount and transfer battery package, have better impetus, need not directly hoist and mount to lower box 12, reduced the wearing and tearing risk of hoist and mount operation to lower box 12.

In some embodiments, the support skeleton 13 may be one of an aluminum alloy skeleton, a copper alloy skeleton, a titanium alloy skeleton, a zinc alloy skeleton.

The aluminum alloy has low density, but has higher strength, is close to or exceeds that of high-quality steel, has good plasticity, can be processed into various sectional materials due to the good plasticity, and is convenient for processing and manufacturing the supporting framework 13 with various shapes. The aluminum alloy also has good corrosion resistance. The aluminum alloy can be aluminum silicon alloy, aluminum copper alloy, aluminum magnesium alloy, aluminum zinc alloy, aluminum rare earth alloy and the like. The copper alloy framework, the titanium alloy framework and the zinc alloy framework have good performance.

In some embodiments, the lower case 12 is made of one or more of carbon fiber, boron fiber, and glass fiber. Specifically, the lower case 12 may be provided in a tub shape.

In the related art, the battery box body is generally made of materials with larger weight and density, namely, the existing box body has the density of about 2.7g/cm ³, so that the weight cannot be reduced extremely, and the energy density of the battery pack is reduced to a certain extent. In view of this problem, the present embodiment provides the lower case 12 made of carbon fiber.

The carbon fiber has many excellent performances, high strength, low density, high super-high temperature resistance in non-oxidation environment, high fatigue resistance, low thermal expansion coefficient, high corrosion resistance, good electric conductivity, high heat conductivity and good electromagnetic shielding property.

The lower case 12 has a light weight per unit volume due to its low density, which can increase the energy density of the battery pack.

The basin-shaped structure is a concave groove-shaped structure with baffles at the periphery, has a certain accommodating space and can accommodate the battery monomers, when the battery monomers are arranged, the upper box 26 is butted on the lower box 12, and the upper box 26 can also have a certain space and is mutually butted with the lower box 12. And the lower box body 12 directly adopts a basin-shaped structure, so that the use of a bottom guard plate structure is avoided, the effect of simplifying the structure of the battery box body is achieved, and the weight is reduced.

In some embodiments, referring to fig. 6 and 7-11, the supporting frame 13 includes two first frame edges 16 disposed opposite to each other and two second frame edges 17 disposed opposite to each other, and two ends of the first frame edges 16 are respectively connected to one second frame edge 17 to form a frame structure.

The frame limit is the structure that forms braced frame 13, and braced frame 13 is the frame shape, so needs the frame limit to enclose, specifically includes first frame limit 16 and second frame limit 17, and the quantity of two kinds of frame limit can be selected as required, and the shape of two kinds of frame limit can be set up as required, and the concatenation connected mode of two kinds of frame limit can be selected as required to can form the braced frame 13 with lower box 12 looks adaptation and take the place as standard.

After the supporting frame 13 is formed, the supporting frame 13 is sleeved outside the lower case 12, thereby pulling the lower case 12 from the bottom. When the lower box body 12 is towed, a contact joint position is necessarily provided between the outer wall of the lower box body 12 and the frame edge, so that the embodiment also provides glue solution 18 at the joint position to strengthen the integral connectivity between the lower box body 12 and the supporting framework 13.

Specifically, in this embodiment, the number of the first frame edges 16 may be two, and the number of the second frame edges 17 may be two, and they are disposed opposite to each other, so as to form a rectangular-like structure, that is, the two first frame edges 16 or the two second frame edges 17 are disposed opposite to each other with a space therebetween, and are not in contact with each other, so as to support different symmetrical side portions of the lower case 12. Adjacent first and second rims 16, 17 are joined together to form a frame-shaped structure.

The effect of this embodiment is that the first frame edges 16 are arranged in two opposite sides, and the second frame edges 17 are arranged in two opposite sides, so that symmetrical support is formed for the supporting framework 13, the two first frame edges 16 are identical in structure and are used for supporting two opposite sides of the lower box body 12, the two second frame edges 17 are identical in structure and are used for supporting the other opposite sides of the lower box body 12, so that the overall supporting force of the supporting framework 13 is balanced and coordinated, and the stability of the lower box body 12 and the internal battery cells is ensured.

In some embodiments, referring to fig. 10, the first frame edge 16 includes a middle plate 163, and a first flange 161 and a second flange 162 connected to two ends of the middle plate 163, where the first flange 161 is used for supporting the butt surface 24 of the lower case 12, the second flange 162 is used for supporting the bottom of the lower case 12, and the middle plate 163 is attached to a side portion of the lower case 12.

Specifically, the first frame edge 16 includes an intermediate plate 163, a first folded edge 161, and a second folded edge 162, where the intermediate plate 163 is a plate located between the first folded edge 161 and the second folded edge 162, and may be vertically disposed, and has an upper end that is the first folded edge 161 and a lower end that is the second folded edge 162, and the first folded edge 161 and the second folded edge 162 extend toward two sides, that is, the first folded edge 161 and the second folded edge 162 are located on two sides of the intermediate plate 163, respectively. The first and second flanges 161 and 162 may be parallel to each other and perpendicular to the middle plate 163.

The folded edge is a plate body which is turned relative to the middle plate 163, namely, the middle plate 163 and the middle plate 163 form a certain included angle.

The overall shape of the first rim 16 is adapted to the shape of the side portion of the lower housing 12 to some extent, and when the first rim 16 is in such a form, the intermediate plate 163 may be attached to the side portion of the lower housing 12, the first rim 161 may support the abutment surface 24 of the lower housing 12, and the second rim 162 may support the bottom portion of the lower housing 12 to form a stable support.

The effect of this embodiment is that the first frame edge 16 is provided, and its structural form is adapted to the shape of the side portion of the lower case 12, so that the top and bottom of the side portion of the lower case 12 can be well towed to form a stable support.

It should be noted that, the glue solution 18 is disposed between the first flange 161 and the abutting surface 24 of the lower case 12, between the second flange 162 and the bottom surface of the lower case 12, and between the middle plate 163 and the side portion of the lower case 12, so as to achieve adhesion of the two structures, form a stable structure, avoid the existence of a gap, and enhance the compactness of the assembly between the lower case 12 and the first frame edge 16.

In some embodiments, referring to fig. 5 and 11, the outer wall of the lower case 12 is provided with an inner groove 21, and the second frame edge 17 is embedded in the inner groove 21.

Specifically, the second frame edge 17 may be configured as a rod-shaped structure or a strip-shaped structure, and the shape of the second frame edge 17 is adapted to the inner groove 21, and the second frame edge 17 may be configured as a straight rod body and may have a rectangular cross section, so that the second frame edge 17 can be placed in the inner groove 21.

The outer wall of lower box 12 sets up indent 21, i.e. the structure of indent, just so form the step structure in the inside of lower box 12, i.e. convex step structure, the mode that second frame limit 17 bore lower box 12 is the shape looks adaptation of indent 21 and second frame limit 17, the looks adaptation is between the outline of second frame limit 17 and the interior outline of indent 21, second frame limit 17 can set up in indent 21, the top of second frame limit 17 can the top surface of indent 21, a lateral part of second frame limit 17 can the side of indent 21 to realize the support to lower box 12.

The effect of this embodiment lies in, the shape of second frame limit 17 is provided, and second frame limit 17 structure is simpler, and easy processing adopts the body of rod structure of logical length, simultaneously in order to strengthen the supporting effect to lower box 12, adopts the mode of two faces laminating lower box 12, i.e. top surface and side, has set up inner groovy 21 for this on lower box 12, can realize the supporting laminating of two faces after second frame limit 17 holds the entering, and stability is better.

In some embodiments, one or more of bonding, clamping, fastening connection is provided between the first rim 16 and the lower casing 12; and/or one or more of bonding, clamping and fastening connection are arranged between the second frame edge 17 and the lower box body 12.

Referring to fig. 11, the second frame edge 17 may be adhered to the inner groove 21. Specifically, glue solution 18 is disposed between the second frame edge 17 and the groove wall to form an adhesive form, that is, glue solution 18 is disposed between the second frame edge 17 and the lower case 12 to enhance compactness therebetween.

Referring to fig. 10, glue solution 18 is disposed between the first flange 161 and the abutting surface 24 of the lower case 12, between the second flange 162 and the bottom surface of the lower case 12, and between the middle plate 163 and the side portion of the lower case 12, so as to achieve adhesion of the two structures and form a stable structure.

Alternatively, the first frame edge 16 may be fastened to the lower case 12; and/or the second rim 17 is fixedly attached to the lower housing 12.

Specifically, the fastening connection means that the first frame edge 16 and the lower case 12 are fixedly connected in a fastening manner, and the second frame edge 17 and the lower case 12 are fixedly connected in a fastening manner, specifically, may be a bolt 19, and the first frame edge 16 and the lower case 12, and the second frame edge 17 and the lower case 12 are fixedly connected by screwing the bolt 19. The screw 19 is connected as a specific embodiment of a fastening connection.

Referring to fig. 9 and 11, in order to increase the strength of the connection between the lower case 12 and the supporting frame 13, the second frame 17 and the lower case 12 may be connected by bolts 19.

Referring to fig. 8 and 10, the first flange 161 and the abutting surface 24 of the lower case 12 may be connected by bolts 19.

Referring to fig. 9 and 11, a screw hole is formed in the second frame edge 17, a through hole is formed in a mesa of the step structure in the lower case 12, the screw hole and the through hole are aligned with each other, and then a bolt 19 is screwed in to realize threaded connection.

Referring to fig. 8 and 10, through holes may be formed on the first flange 161 and the abutting surface 24 of the lower case 12 and aligned with each other, then a threaded sleeve 22 aligned with the through holes and fixedly connected to the first flange 161 is disposed on the lower side of the first flange 161, and the bolts 19 may sequentially pass through the abutting surface 24 of the lower case 12 and the through holes on the first flange 161 from top to bottom, enter the threaded sleeve 22, and be screwed into the threaded sleeve 22 by screwing. Meanwhile, a through hole may be further provided on the shielding member 23, that is, a through hole may be provided on the connection section 25 of the shielding member 23, so as to adapt to the insertion of the bolt 19, that is, the bolt 19 sequentially passes through the through hole of the connection section 25, the through hole of the abutting surface 24, and the through hole of the first folded edge 161 from top to bottom.

When the box body structure 10 needs to be docked with the docking surface 24 of the other box body structure 10, through holes are formed in the sealing piece 11 as well, and bolts 19 sequentially penetrate through the through holes of the docking surface 24 of the other box body structure 10, the through holes of the sealing piece 11, the through holes of the shielding piece 23, the through holes of the docking surface 24 of the lower box body 12 and the through holes of the first folding edge 161 and then are connected with the threaded sleeve 22, so that connection between the first folding edge 161 and the docking surface 24 of the lower box body 12 is achieved, connection between the first folding edge 161 and the docking surface 24 of the other box body structure 10 is achieved, and the box body structure 10 is docked.

In some cases, referring to fig. 11, when the abutting surface 24 of the lower case 12 on the side of the second frame edge 17 is abutted with the abutting surface 24 of the other case structure 10, a through hole and a threaded sleeve 22 may be provided, the through hole is provided on the abutting surface 24 of the lower case 12, the abutting surface 24 of the other case structure 10, the sealing member 11 in the middle and the shielding member 23, the threaded sleeve 22 is aligned with the through hole and provided on the lower side of the abutting surface 24 of the lower case 12, and a bolt 19 is threaded to connect the lower case 12 and the case structure 10 on the side while pressing the sealing member 11 in the middle.

The number of bolts 19 may be set as needed, and specifically may be set at uniform intervals in the longitudinal direction.

The embodiment provides an implementation form for reinforcing the connection strength between the lower box body 12 and the supporting framework 13, adopts the connection in the form of bolts 19, is simple and convenient, has strong reliability, and can strengthen the connection strength between the lower box body 12 and the supporting framework 13 and between the two box body structures 10.

In some embodiments, referring to fig. 6, the supporting framework 13 is further connected with a hoisting structure 20, and the hoisting structure 20 is used for hoisting an external hoisting device.

Specifically, the battery pack needs to be transported, so the battery pack is usually assembled and disassembled in a hoisting mode, and the hoisting of the battery box body is very likely to damage the box body, so the hoisting structure 20 is provided on the first frame edge 16 or the second frame edge 17, and the hoisting structure 20 can be a section bar structure with hoisting holes, particularly can be a plate shape or a combined structure formed by a plurality of plate bodies, so that the hoisting is convenient.

The lifting structure 20 may be disposed on the first frame edge 16 or on the second frame edge 17, specifically may be disposed on a side portion of the first frame edge 16 and a side portion of the second frame edge 17, and the number of lifting structures 20 may be disposed on the first frame edge 16 and the second frame edge 17 as required.

The effect of this embodiment is that the lifting structure 20 is provided, which is favorable to the lifting and transportation of the battery pack, and does not damage the battery pack.

Referring to fig. 3, in the embodiment provided by the application, the battery box comprises an upper box 26 and a lower box 12, the sealing element 11 is a sealing gasket, the shielding element 23 comprises a first convex rib, a second convex rib and a U-shaped connecting section 25, the shielding element 23 is arranged on the lower box 12, the sealing element 11 is arranged between the first convex rib and the second convex rib, the sealing element 11 can be extruded when the upper box 26 and the lower box 12 are in butt joint, and the first convex rib shields the sealing element 11. The shielding member 23 is attached to the lower case 12 by means of adhesion, and the shielding member 23 is made of an injection molding material. The supporting framework 13 comprises a first frame edge 16 and a second frame edge 17 which form a frame-shaped structure and are sleeved on the lower box body 12, and the two frame edges are attached to the lower box body 12 and are provided with glue solution 18. The first frame edge 16 includes a middle plate 163, a first folded edge 161 and a second folded edge 162 connected to two ends of the middle plate 163, the first folded edge 161 is used for supporting the butt joint surface 24 of the lower case 12, the second folded edge 162 is used for supporting the bottom of the lower case 12, and the middle plate 163 is attached to a side portion of the lower case 12. The lower case 12 is provided with an inner recess 21, and the second rim 17 is located in the inner recess 21. And the first frame edge 16 and the second frame edge 17 are also connected with the lower box body 12 through bolts 19.

The application also provides a specific embodiment of the battery 100, which comprises the battery box provided by any one of the embodiments. The battery case provided by the embodiment has better safety of the battery 100, no leakage accident from the sealing member 11 occurs, and the energy density of the battery 100 can be improved.

The application also provides a specific embodiment of the electric equipment, which comprises the battery 100 provided by the embodiment. The electric equipment provided by the embodiment comprises the battery 100, so that the running stability and the persistence of the equipment are improved.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application 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 application, 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 application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. A battery box, comprising:

The shielding piece comprises a first shielding part, the first shielding part is arranged on one side, facing the inner cavity, of the sealing piece, and the first shielding part is used for separating the inner cavity and the sealing piece.

2. The battery box of claim 1, wherein the first shielding portion is a first rib protruding from the mating surface of the box structure, and the first rib is attached to the sealing member.

3. The battery box as claimed in claim 2, wherein the shielding member further comprises a second shielding portion disposed on the abutting surface, the second shielding portion is a second protruding rib, the second protruding rib is disposed on a side of the sealing member facing away from the inner cavity, the sealing member is sandwiched between the first protruding rib and the second protruding rib, and two sides of the sealing member are respectively attached to the first protruding rib and the second protruding rib.

4. A battery compartment as in claim 3 wherein the shield further comprises a connecting section between and connected to the first bead and the second bead to form a channel and the seal is positioned within the channel.

5. The battery compartment of any one of claims 1-4, wherein the shield is of unitary construction with the compartment structure.

6. The battery compartment of any one of claims 1-4 wherein the shield is of a split construction with the compartment structure, the shield being adhered to the mating surface.

7. The battery compartment as in any one of claims 1-4, wherein the shield is a composite or injection molded material.

8. The battery box of claim 1, wherein the abutting surface is provided with a strip-shaped groove, the sealing element is assembled in the strip-shaped groove, and the strip-shaped groove is close to a groove wall on one side of the inner cavity to form the first shielding part.

9. The battery compartment of claim 8, wherein the shield further includes a second shield portion that is the other side wall of the slot away from the interior cavity.

10. The battery box as claimed in any one of claims 1 to 4, wherein the box structure comprises a lower box provided with an opening, and the battery box further comprises a frame-shaped supporting framework sleeved on the outer side of the lower box to support the lower box.

11. The battery compartment of claim 10, wherein the support skeleton is one of an aluminum alloy skeleton, a copper alloy skeleton, a titanium alloy skeleton, a zinc alloy skeleton.

12. The battery case of claim 10, wherein the lower case is made of one of carbon fiber, boron fiber, and glass fiber.

13. The battery case of claim 10, wherein the supporting frame comprises two first frame sides disposed opposite to each other and two second frame sides disposed opposite to each other, and two ends of the first frame sides are respectively connected to one second frame side to form a frame structure.

14. The battery compartment of claim 13, wherein the first frame edge includes a middle plate, and a first flange and a second flange connected to two ends of the middle plate, the first flange being configured to support the abutting surface of the lower case, the second flange being configured to support the bottom of the lower case, and the middle plate being attached to a side portion of the lower case.

15. The battery box of claim 13, wherein the outer wall of the lower box is provided with an inner groove, and the second frame edge is embedded in the inner groove.

16. The battery box of claim 13, wherein one or more of adhesive, clamping, and fastening connection is provided between the first frame edge and the lower box;

And/or one or more of bonding, clamping and fastening connection are arranged between the second frame edge and the lower box body.

17. The battery compartment of claim 10, wherein the support frame is further coupled with a lifting structure for lifting by an external lifting device.

18. A battery comprising the battery case of any one of claims 1-17.

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