CN220492091U - Box assembly, battery and electric equipment - Google Patents

Abstract

The application discloses a box subassembly, battery and consumer. The box body assembly comprises a box body and a mounting piece, wherein the box body comprises a bottom wall, and a first mounting hole is formed in the bottom wall; the mounting piece is worn to locate first mounting hole, and it has the sealant to fill between diapire and the mounting piece, and the sealant encircles the mounting piece setting. The reliability of the box body assembly can be effectively improved, and the reliability of a battery using the box body assembly is improved.

Description

Box assembly, battery and electric equipment

Technical Field

The application relates to the field of batteries, and specifically relates to a box assembly, a battery and electric equipment.

Background

Along with the development of new energy technology, the application of the battery is more and more extensive, the battery has higher energy density, higher safety, long service life and environmental protection to the social environment, and the battery has been widely applied to the aspects of passenger cars, commercial vehicles, electric bicycles, heavy trucks, energy storage facilities, power stations, engineering manufacture, intelligent appliances and the like, and simultaneously promotes the technical development and research of communication terminals, medical appliances, energy development and the like.

The battery comprises a box body and a battery monomer accommodated in the box body, wherein the box body is used for resisting the interference of external environment to the battery monomer, and how to improve the reliability of the battery becomes a difficult problem of the technical development of the battery.

Disclosure of Invention

The embodiment of the application provides a box assembly, a battery and electric equipment, and can effectively improve the reliability of the battery.

In a first aspect, embodiments of the present application provide a box assembly, the box assembly including a box and a mount, the box including a bottom wall, the bottom wall being formed with a first mounting hole; the mounting piece is arranged in the first mounting hole in a penetrating mode, sealing glue is filled between the bottom wall and the mounting piece, and the sealing glue surrounds the mounting piece.

In the above technical scheme, the diapire is formed with first mounting hole, and the mount is worn to locate first mounting hole, and it has the sealant to fill between diapire and the mount, and the sealant encircles the mount setting. Through setting up the sealant and seal between mount and diapire, can effectively improve the reliability of box subassembly, improve the reliability of the battery that uses this box subassembly.

In some embodiments, the bottom wall includes a bottom wall body and a stiffening beam, the stiffening beam is disposed on an outer side surface of the bottom wall body, the first mounting hole penetrates through the bottom wall body and the stiffening beam, and the sealant is disposed between the mount and the stiffening beam.

In the above technical scheme, the local intensity of diapire body can be strengthened to setting up the reinforcement to improve the structural strength of diapire, extension box's life.

In some embodiments, the outer side surface of the bottom wall body is formed with a first groove, and at least a portion of the reinforcement beam is received in the first groove.

In the technical scheme, the first groove is formed on the outer side surface of the bottom wall body, so that the reinforcing beam is convenient to install from the outer side.

In some embodiments, the reinforcement beam includes a first wall, a second wall, and a third wall that are sequentially connected, the second wall is disposed at a bottom of the first groove, the first wall and the third wall extend from the second wall in a direction away from the bottom of the first groove, and the first mounting hole penetrates the second wall.

Among the above-mentioned technical scheme, the stiffening beam is including the first wall, second wall and the third wall that connect gradually, and convenient production makes, reduces the preparation degree of difficulty of stiffening beam.

In some embodiments, the mounting member includes a first section and a second section connected to each other, the first section is disposed through the first mounting hole, at least a portion of the second section is received in the first groove, and a diameter of the second section is greater than a diameter of the first section, so that a step is formed between the second section and the first section, and a seal is disposed between the step and the second wall.

In the technical scheme, the sealing piece is further arranged on the basis of the sealing glue, so that the sealing performance of the box body can be further improved, and the reliability of the battery monomer using the box body assembly is improved. In addition, the mount includes first section and second section, and the first section is convenient for mount penetrates in the first mounting hole, and the second section forms the step with first section, and the step can carry out spacingly to the seal, restricts the seal between the second wall of stiffening beam and the mount.

In some embodiments, a first flange is formed at an end of the first wall away from the second wall, the first flange extending away from the third wall, at least a portion of the first flange being located outside the first recess; the third wall is kept away from the one end of second wall is formed with the second turn-ups, the second turn-ups is in keeping away from the direction of first wall extends, at least a portion of second turn-ups is located outside the first recess.

Among the above-mentioned technical scheme, set up first turn-ups and second turn-ups, be convenient for be connected first turn-ups and second turn-ups and diapire body outside first recess to realize the stiffening beam and diapire body's be connected, reduce the assembly degree of difficulty.

In some embodiments, the first wall, the second wall and the third wall enclose a second groove, the box assembly further includes a sealing plate, the sealing plate covers an opening of the second groove opposite to the second wall, one end of the sealing plate is connected to the first flange, the other end of the sealing plate is connected to the second flange, the sealing plate is formed with a second mounting hole corresponding to the first mounting hole, and the mounting member further penetrates through the second mounting hole.

In the above technical scheme, set up the opening of closing plate cover second recess and second wall relatively, can alleviate liquid or other foreign matter and get into the second recess, sealant and closing plate constitute double-deck sealed, the sealing performance of box has been improved to the great degree, has improved the reliability of the battery that uses this box subassembly.

In some embodiments, the sealing plate is welded to the first and second rims.

Among the above-mentioned technical scheme, the welding can improve the stability of being connected and joint strength of stiffening beam and closing plate.

In some embodiments, a protrusion is formed on the inner surface of the bottom wall body at a position corresponding to the first groove, the box assembly further includes an expansion beam, the expansion beam is disposed in the box body, a third groove is formed on a side of the expansion beam facing the bottom wall, at least part of the protrusion is accommodated in the third groove, a third mounting hole is formed on the expansion beam, and the mount further penetrates through the third mounting hole.

According to the technical scheme, the expansion beam can absorb the expansion force of the battery monomer, and the reliability of the battery is improved.

In some embodiments, the housing assembly further comprises a flexible layer that wraps around the periphery of the mount, at least a portion of the flexible layer being disposed between the aperture wall of the first mounting aperture and the mount.

According to the technical scheme, the flexible layer is coated on the periphery of the mounting piece, the mounting piece is in interference fit with the bottom wall, the sealing gap can be reduced, a sealing position is formed, and the sealing performance of the box body is improved.

In a second aspect, embodiments of the present application provide a battery comprising a case assembly provided in any of the embodiments of the first aspect.

In a third aspect, an embodiment of the present application provides an electric device, where the electric device includes a battery provided by an embodiment of the second aspect, and the battery is configured to supply power to the electric device.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

FIG. 2 is an exploded schematic view of a battery according to some embodiments of the present application;

FIGS. 3 and 4 are schematic views of different angles of a housing assembly according to some embodiments of the present application;

FIG. 5 is a schematic view of the bottom wall of the case according to some embodiments of the present application;

FIG. 6 is a schematic partial structural view of a tank assembly according to some embodiments of the present application;

FIG. 7 is an enlarged view of portion A of FIG. 6 in accordance with some embodiments of the present application;

FIG. 8 is a schematic view of further embodiments of the sealant of FIG. 7;

FIG. 9 is an exploded view of a tank assembly according to some embodiments of the present application;

FIG. 10 is a schematic view of a portion of a housing assembly according to further embodiments of the present application;

fig. 11 is an enlarged view of a portion B in fig. 10;

FIG. 12 is a schematic structural view of a stiffening beam according to some embodiments of the present application;

FIG. 13 is a partial schematic view of a tank assembly according to further embodiments of the present application;

FIG. 14 is a schematic view of a mounting member according to some embodiments of the present application;

FIG. 15 is a schematic view of the bottom wall body and reinforcement beam in a separate partial configuration of the tank assembly structure according to some embodiments of the present application;

FIG. 16 is a schematic view of a partial structure of a tank assembly according to still other embodiments of the present application;

FIG. 17 is an exploded schematic view of a tank assembly of some embodiments of the present application;

FIG. 18 is a partial schematic view of a tank assembly according to still further embodiments of the present application;

FIGS. 19 and 20 are schematic views of various angle configurations of an expansion beam according to some embodiments of the present application;

fig. 21 is a schematic structural view of a flexible layer wrapping mount according to some embodiments of the present application.

Icon: 10-a box assembly; 1-a box body; 11-a bottom wall; 111-a bottom wall body; 1111-a first groove; 1112-a protrusion; 112-reinforcing beams; 1121-a first wall; 11211-a first flange; 1122-a second wall; 1123-a third wall; 11231-a second flange; 1124-second grooves; 113-a first mounting hole; 12-side walls; 2-mounting part; 21-a first end sleeve; 22-a second end sleeve; 23-a middle sleeve; 231-first stage; 232-a second section; 233-steps; 24-switching sleeve; 3-sealing glue; 4-a seal; 5-sealing plate; 6-expansion beams; 61-a third groove; 62-a third mounting hole; 7-a flexible layer; 8-protecting plates; 100-cell; 20-battery cells; 101-a first part; 102-a second part; 103-accommodation space; 1000-vehicle; 200-motor; 300-controller.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within 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 in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.

Reference in the specification 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.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "attached" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the present application, it is to be noted that, unless otherwise indicated, the meaning of "plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like indicate an orientation or positional relationship merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The "vertical" is not strictly vertical but is within the allowable error range. "parallel" is not strictly parallel but is within the tolerance of the error.

The term "and/or" in this application is merely an association relation describing an associated object, and indicates that three relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In this application, the character "/" generally indicates that the associated object is an or relationship.

In the embodiments of the present application, the same reference numerals denote the same components, and in the interest of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, etc. dimensions of the various components in the embodiments of the present application, as well as the overall thickness, length, width, etc. dimensions of the integrated device, are illustrative only and should not be construed as limiting the present application in any way.

The term "plurality" as used herein refers to more than two (including two). In the present application, the battery cell may include, but is not limited to, 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. The battery cells include, but are not limited to, cylinders, flat bodies, rectangular solids, or other shapes, etc. The battery cells generally comprise cylindrical battery cells, square battery cells, soft package battery cells and the like in a packaging mode.

Reference to a battery in embodiments of the present application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in the present application may include a battery module or a battery pack, or the like. The battery generally includes a case for enclosing one or more battery cells. The case can reduce the influence of liquid or other foreign matters on the charge or discharge of the battery cells.

When a plurality of battery cells are provided, the plurality of battery cells are arranged and fixed to form a battery module. In some embodiments, the battery may be a battery pack including a case and a battery cell, the battery cell or battery module being housed in the case.

In some embodiments, the tank may be part of the chassis structure of the vehicle. For example, a portion of the tank may become at least a portion of the floor of the vehicle, or a portion of the tank may become at least a portion of the cross member and the side member of the vehicle. The battery comprises a box body and a battery unit accommodated in the box body, wherein the box body is used for resisting the external environment to protect the battery unit. In the related art, a mount is mounted on a case to facilitate connection of a battery to a device to which it is applied or a mounted bracket. The wall portion of box needs the trompil in order to make things convenient for the mount installation, and the trompil can influence the sealing performance of box, if the sealing between mount and the box of trompil position department is not enough or unsealed, and when the battery was used, outside liquid or other foreign matter can cause inside battery monomer short circuit, influences the reliability of battery.

In view of this, in order to solve the problem that sealing between the box and the mount causes battery reliability, this embodiment of the application provides a technical scheme, through packing the sealant between diapire and the mount of box to separate the internal environment and the external environment of box in this position department, thereby the outside liquid of box or other foreign matter are difficult to get into in the box and influence the battery monomer, therefore can provide the reliability of battery.

The technical scheme described by the embodiment of the application is suitable for the battery and the electric equipment using the battery.

The electric equipment can be vehicles, mobile phones, portable equipment, notebook computers, ships, spacecrafts, 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.

For convenience of description, the following embodiments take the electric device as the vehicle 1000 as an example.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1000 according to some embodiments of the present application, a battery 100 is disposed in the vehicle 1000, and the battery 100 may be disposed 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 300 and a motor 200, the controller 300 being configured to control the battery 100 to power the motor 200, 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.

In some embodiments, referring to fig. 2, fig. 2 is an exploded view of a battery 100 according to some embodiments of the present application, and the battery 100 includes a plurality of battery cells 20. The plurality of battery cells 20 may be connected in series or parallel or a series-parallel connection. The series-parallel connection refers to that the plurality of battery cells 20 are connected in series or in parallel.

In some embodiments, the battery 100 may further include a bus bar (not shown), through which the plurality of battery cells 20 may be electrically connected to each other, so as to realize serial connection, parallel connection, or a series-parallel connection of the plurality of battery cells 20.

The bus member may be a metal conductor such as copper, iron, aluminum, steel, aluminum alloy, or the like.

In some embodiments, battery 100 may further include a case 1, case 1 for accommodating battery cell 20. The case 1 may include a first portion 101 and a second portion 102, the first portion 101 and the second portion 102 being overlapped with each other to define an accommodating space 103 for accommodating the battery cell 20. Of course, the connection between the first portion 101 and the second portion 102 may be sealed by a sealing element (not shown), which may be a sealing ring, a sealing glue 3, or the like.

The first portion 101 and the second portion 102 may have various shapes, such as a rectangular parallelepiped, a cylinder, and the like. The first portion 101 may be a hollow structure with one side opened, and the second portion 102 may be a hollow structure with one side opened, and the open side of the second portion 102 is closed to the open side of the first portion 101, so that the case 1 having the accommodating space 103 is formed. Of course, the first portion 101 may be a hollow structure with one side open, the second portion 102 may be a plate-like structure, and the second portion 102 may be covered on the open side of the first portion 101 to form the case 1 having the accommodation space 103.

Referring to fig. 3 and 4, fig. 3 and 4 are schematic views of different angles of the case assembly 10 according to some embodiments of the present application, fig. 3 illustrates an inner side of the case 1, and fig. 4 illustrates an outer side of the case 1. The case assembly 10 includes a case 1 and an expansion beam 6 mounted to a bottom wall 11 of the case 1, the expansion beam 6 being accommodated in the case 1, the expansion beam 6 being adapted to resist expansion deformation of the battery cells 20 of the battery 100 during operation.

In some embodiments, the case 1 includes a bottom wall 11 and a side wall 12 surrounding the bottom wall 11, where the side wall 12 may be a high wall (as shown in fig. 2) or a low wall (as shown in fig. 3), and the height of the side wall 12 is selected according to the size of the battery cell 20, so as to be able to accommodate the battery cell 20.

In some embodiments, the case assembly 10 includes a mount 2, and the mount 2 is disposed on the bottom wall 11. The mount 2 may be connected to only the bottom wall 11, or the mount 2 may be connected to the bottom wall 11 at one portion and the expansion beam 6 at the other portion.

The embodiment of the application provides a box assembly 10, which can effectively improve the sealing reliability between a box 1 and a mounting piece 2 and improve the reliability of a battery 100 using the box assembly 10. The specific structure of the tank assembly 10 will be described in detail with reference to the accompanying drawings.

Fig. 5 is a schematic structural view of the bottom wall 11 of the case 1 according to some embodiments of the present application; FIG. 6 is a schematic view of a partial structure of a tank assembly 10 according to some embodiments of the present application; FIG. 7 is an enlarged view of portion A of FIG. 6 in accordance with some embodiments of the present application; fig. 8 is a schematic view of further embodiments of the sealant 3 of fig. 7.

Referring to fig. 4, 5, 6 and 7, the present embodiment provides a case assembly 10, the case assembly 10 including a case 1 and a mount 2. The case 1 includes a bottom wall 11, the bottom wall 11 being formed with a first mounting hole 113; the mounting piece 2 is arranged in the first mounting hole 113 in a penetrating mode, sealing glue 3 is filled between the bottom wall 11 and the mounting piece 2, and the sealing glue 3 is arranged around the mounting piece 2.

The case 1 includes a bottom wall 11, the bottom wall 11 being a wall portion of the case 1 for carrying the battery cells 20, and in use, the bottom wall 11 may be located at an upper portion of the battery 100, and the bottom wall 11 may be located at a lower portion of the battery 100. The case 1 may further include a side wall 12 (fig. 2 and 3), and the case 1 may further include an upper cover (not shown) that covers the opening of the side wall 12.

The bottom wall 11 is formed with a first mounting hole 113, the first mounting hole 113 being a mounting base of the mount 2, the mount 2 being partially accommodated in the first mounting hole 113, the first mounting hole 113 being a screw hole so that the mount 2 is screw-coupled with the bottom wall 11. The shape of the first mounting hole 113 includes, but is not limited to, a round hole, a square hole, a polygonal hole, etc. The first mounting hole 113 facilitates the mounting of the mounting member 2, but affects the sealing performance of the bottom wall 11, and liquid or other foreign matters outside the case 1 easily enter the battery 100 from the opening position, so that the sealing performance between the bottom wall 11 and the mounting member 2 needs to be improved.

The mount 2 is a connection member provided to the case 1 so as to connect the case 1 with other devices, thereby achieving placement and installation of the battery 100. For example, the case 1 of the battery 100 is connected to a sheet metal on the vehicle 1000 by the mount 2. The number of the mounting members 2 is set according to specific needs, and illustratively, two mounting members 2 are provided. The structural form of the mounting member 2 includes, but is not limited to, a sleeve, a nut, a hook and the like. Illustratively, in fig. 6, the mount 2 is a sleeve.

The sealant 3 is an adhesive for filling gaps to perform a sealing function, and the sealing function of the sealant 3 is to form a physical space, and the gap between the mounting member 2 and the bottom wall 11 is used for blocking the inside and the outside of the box body 1, so that the sealing device has the functions of preventing liquid or other foreign matters in the box body 1 from leaking and preventing liquid or other liquids outside the box body 1 from entering. The sealant 3 can be fluid, the sealant 3 can deform along with the shape of the sealing surface, and the sealant 3 is shaped after being dried and is not easy to flow. Referring to fig. 6, the sealant 3 is coated outside the first mounting hole 113 to form a physical space to separate the inside of the case 1 from the outside therein, and of course, the sealant 3 may partially flow into the first mounting hole 113 under the action of fluidity to improve sealing performance. As shown in fig. 7, a sealant 3 may be filled between the wall of the first mounting hole 113 and the outer circumference of the mount 2 to form a physical space to separate the inside from the outside of the case 1 thereat.

To achieve sealing, a sealant 3 is provided around the outer periphery of mount 2 to adhere the outer surface of mount 2 to bottom wall 11.

The material of the sealant 3 includes, but is not limited to, asphalt, natural or synthetic resin, natural or synthetic rubber, and the like. Of course, the sealant 3 may also be 502 glue.

In this embodiment, diapire 11 is formed with first mounting hole 113, and mount 2 wears to locate first mounting hole 113, and it has sealant 3 to fill between diapire 11 and the mount 2, and sealant 3 encircles mount 2 setting. By providing the sealant 3 between the mount 2 and the bottom wall 11 for sealing, the reliability of the case assembly 10 can be effectively improved, and the reliability of the battery 100 using the case assembly 10 can be improved.

In some embodiments, referring to fig. 9, 10 and 11, fig. 9 is an exploded schematic view of the case assembly 10 of some embodiments of the present application, fig. 9 showing the outside of the bottom wall 11; FIG. 10 is a schematic view of a portion of a housing assembly 10 according to further embodiments of the present application; fig. 11 is an enlarged view of a portion B in fig. 10. The diapire 11 includes diapire body 111 and stiffening beam 112, and stiffening beam 112 sets up in the lateral surface of diapire body 111, and first mounting hole 113 runs through diapire body 111 and stiffening beam 112, and sealant 3 sets up between mount 2 and stiffening beam 112.

The reinforcement beam 112 is disposed on an outer side surface of the bottom wall body 111, and the outer side surface of the bottom wall body 111 is a side of the bottom wall 11 facing the external environment, and is also a side of the bottom wall 11 facing away from the battery cell 20.

The reinforcing beam 112 is a member for reinforcing the local strength of the bottom wall body 111. The formation of the first mounting hole 113 reduces the structural strength of the bottom wall body 111, and when the case 1 is in use, the position of the bottom wall body 111 near the mount 2 needs to bear a higher load, so the structure of the bottom wall body 111 near the mount 2 and the first mounting hole 113 needs to be reinforced.

The reinforcing beam 112 and the bottom wall body 111 may be welded, bonded, or the like. In order to improve the sealing performance of the case 1, the reinforcing beam 112 is optionally welded to the bottom wall body 111, and a weld is formed between the reinforcing beam 112 and the bottom wall 11, the weld being disposed around the edge of the reinforcing beam 112.

The reinforcing beam 112 itself has a certain thickness, so that the local strength of the bottom wall 11 can be reinforced, and for better reinforcing effect, the thickness of the reinforcing beam 112 can be larger than that of the bottom wall 11, and of course, the reinforcing beam 112 can also be made of a material having better strength than that of the bottom wall 11.

The first mounting hole 113 penetrates the bottom wall body 111 and the reinforcing beam 112, that is, the bottom wall body 111 is formed with one through hole, and the reinforcing beam 112 is formed with a through hole corresponding to the through hole on the bottom wall body 111, so that the mount 2 can be penetrated out from both ends of the bottom wall 11.

The sealant 3 is disposed between the mounting member 2 and the reinforcing beam 112, which means that the sealant 3 seals at a gap between the mounting member 2 and the reinforcing beam 112, thereby blocking the interior and the exterior of the case 1. Of course, for better sealing effect, the sealant 3 may be further disposed between the bottom wall body 111 and the mount 2.

In this embodiment, set up the reinforcement and can strengthen the local intensity of diapire body 111 to improve the structural strength of diapire 11, extension box 1's life.

Referring to fig. 9 and 10, in some embodiments, the outer side surface of the bottom wall body 111 is formed with a first groove 1111, and at least a portion of the reinforcement beam 112 is received in the first groove 1111.

The outer side of the bottom wall body 111 refers to the side of the bottom wall body 111 facing away from the battery cell 20. As illustrated in fig. 9, the bottom wall body 111 is a rectangular plate, the first groove 1111 extends in the width direction of the bottom wall 11, the first groove 1111 may extend to the edge of the bottom wall 11, and the first groove 1111 may not extend to the edge of the bottom wall 11. Of course, in other embodiments, the bottom wall body 111 may be circular, shaped, etc., and accordingly, the first groove 1111 may also extend in other directions.

The reinforcement beam 112 may be partially received in the first groove 1111, and the reinforcement beam 112 may be entirely received in the first groove 1111.

The outer side surface of the bottom wall body 111 forms a first groove 1111 to facilitate the installation of the reinforcing beam 112 from the outside.

Referring first to fig. 12, and then to fig. 10, fig. 12 is a schematic structural diagram of a reinforcement beam 112 according to some embodiments of the present application. In some embodiments, the reinforcement beam 112 includes a first wall 1121, a second wall 1122, and a third wall 1123 connected in sequence, the second wall 1122 is disposed at a bottom of the first groove 1111, the first wall 1121 and the third wall 1123 extend from the second wall 1122 in a direction away from the bottom of the first groove 1111, and the first mounting hole 113 penetrates the second wall 1122.

As can be appreciated, the second wall 1122 corresponds to the bottom of the first groove 1111, the first wall 1121 and the third wall 1123 correspond to two groove walls of the first groove 1111, respectively, and in order to increase the contact area between the reinforcing beam 112 and the first groove 1111, the reinforcing beam 112 may be configured in a profile structure matching the first groove 1111. Illustratively, the first recess 1111 is a rectangular slot, and the first, second and third walls 1121, 1122, 1123 form a U-shaped member in sequence.

The reinforcing beam 112 may be formed by punching a metal plate, or the first, second, and third walls 1121, 1122, 1123 may be manufactured separately and integrally connected.

The reinforcing beam 112 comprises a first wall 1121, a second wall 1122 and a third wall 1123 which are sequentially connected, so that the manufacturing is convenient, and the preparation difficulty of the reinforcing beam 112 is reduced.

Referring to fig. 13 and 14, fig. 13 is a schematic view of a partial structure of a tank assembly 10 according to still further embodiments of the present application; fig. 14 is a schematic structural view of a mount 2 according to some embodiments of the present application. In some embodiments, the mount 2 includes a first section 231 and a second section 232 connected to each other, the first section 231 is disposed through the first mounting hole 113, at least a portion of the second section 232 is received in the first groove 1111, and a diameter of the second section 232 is larger than a diameter of the first section 231, such that a step 233 is formed between the second section 232 and the first section 231, and a seal 4 is disposed between the step 233 and the second wall 1122.

Illustratively, as shown in fig. 14, taking the mount 2 as an example, the sleeve includes a first end sleeve 21, a second end sleeve 22, a middle sleeve 23 and an adapter sleeve 24, the adapter sleeve 24 is disposed at one end of the middle sleeve 23, the first end sleeve 21 is connected to the adapter sleeve 24, the second end sleeve 22 is connected to the other end of the middle sleeve 23, the middle sleeve 23 includes a first section 231 and a second section 232 connected to each other, and the adapter sleeve 24 is disposed at the first section 231.

The first section 231 is disposed through the first mounting hole 113, at least part of the second section 232 is accommodated in the first groove 1111, and the diameter of the second section 232 is larger than that of the first section 231, so that a step 233 is formed between the second section 232 and the first section 231, and a sealing element 4 is disposed between the step 233 and the second wall 1122.

The seal 4 is a member for blocking fluid or other foreign matter from entering the case 1 from the gap between the mount 2 and the bottom wall 11. Unlike the sealant 3, the sealing member 4 is a sealing member which can be detached or replaced, and the sealant 3 is an adhesive.

The material of the seal 4 includes, but is not limited to, plastic, rubber, and the like. Optionally, the sealing member 4 is a rubber pad, and the rubber pad is sleeved on the mounting member 2.

In this embodiment, the sealing member 4 is further provided on the basis of the sealant 3, so that the sealability of the case 1 can be further improved, and the reliability of the battery cell 20 using the case assembly 10 can be improved. In addition, mount 2 includes first section 231 and second section 232, and first section 231 is convenient for mount 2 penetrate in the first mounting hole 113, and second section 232 forms step 233 with first section 231, and step 233 can be spacing seal 4, restricts seal 4 between second wall 1122 of stiffening beam 112 and mount 2.

Referring to fig. 15, and referring again to fig. 9, fig. 15 is a schematic view of separate partial structures of the bottom wall body 111 and the reinforcing beam 112 in the structure of the tank assembly 10 according to some embodiments of the present application, and fig. 15 illustrates an exploded state of the bottom wall body 111 and the reinforcing beam 112 for ease of understanding. In some embodiments, a first flange 11211 is formed at an end of the first wall 1121 remote from the second wall 1122, the first flange 11211 extending away from the third wall 1123, at least a portion of the first flange 11211 being located outside the first recess 1111; the third wall 1123 has a second flange 11231 formed at an end thereof remote from the second wall 1122, the second flange 11231 extending in a direction away from the first wall 1121, at least a portion of the second flange 11231 being located outside the first groove 1111.

The first flange 11211 is a straight wall or flange structure formed by the edge of the first wall 1121, and the second flange 11231 is a straight wall or flange structure formed by the edge of the third wall 1123.

The first flange 11211 extends away from the third wall 1123, meaning that the first flange 11211 belongs to an outward flange; the second flange 11231 extends away from the first wall 1121, meaning that the second flange 11231 belongs to an outward flange. Illustratively, the cross section of the reinforcing beam 112 is a symmetrical shape, and the first flange 11211 and the second flange 11231 are external flanges, so that the shielding degree of the flange to the second groove 1124 can be reduced.

The first flange 11211 and the second flange 11231 may be stamped, and in order to reduce the difficulty in manufacturing the reinforcing beam 112, the reinforcing beam 112 may be optionally stamped from a metal sheet.

At least a portion of the first flange 11211 is located outside the first groove 1111, and at least a portion of the second flange 11231 is located outside the first groove 1111, which means that the assembly of the reinforcement beam 112 and the bottom wall body 111 is completed, a portion of the first flange 11211 is located outside the first groove 1111, and a portion of the second flange 11231 is located outside the first groove 1111.

The first flange 11211 and the second flange 11231 are arranged, so that the first flange 11211 and the second flange 11231 are conveniently connected with the bottom wall body 111 outside the first groove 1111, and therefore connection of the reinforcing beam 112 and the bottom wall body 111 is achieved, and assembly difficulty is reduced.

Referring to fig. 16 and 15, fig. 16 is a schematic view of a partial structure of a tank assembly 10 according to still other embodiments of the present application. In some embodiments, the first wall 1121, the second wall 1122, and the third wall 1123 enclose a second groove 1124, the case assembly 10 further includes a sealing plate 5, the sealing plate 5 covers an opening of the second groove 1124 opposite to the second wall 1122, one end of the sealing plate 5 is connected to the first flange 11211, the other end of the sealing plate 5 is connected to the second flange 11231, the sealing plate 5 is formed with a second mounting hole corresponding to the first mounting hole 113, and the mount 2 is inserted through the second mounting hole.

The sealing plate 5 is a member for covering the opening of the second groove 1124. The sealing plate 5 is formed with a second mounting hole corresponding to the first mounting hole 113, and the mount 2 is further inserted into the second mounting hole, and one end of the mount 2 is inserted out from the second mounting hole. The sealing plate 5 may be constructed as a rectangular plate, a circular plate, a profiled plate.

The opening of the second groove 1124 opposite to the second wall 1122 refers to a notch of the second groove 1124, and both ends of the second groove 1124 in the extending direction are not openings opposite to the second wall 1122 as defined in the embodiment of the present application. That is, both ends of the second groove 1124 in the extending direction may not be covered with the sealing plate 5, for example, both ends of the second groove 1124 in the extending direction may be closed with the structure of the bottom wall body 111.

The opening of the second groove 1124 faces the outside of the bottom wall 11, and external liquid or foreign matter easily enters the second groove 1124, and then enters between the mount 2 and the reinforcing beam 112, and enters the case 1. Therefore, it is necessary to cover the opening of the second groove 1124.

It will be appreciated that the sealing gel 3 has been provided between the mounting member 2 and the bottom wall 11, and that the sealing plate 5 covers the opening of the second recess 1124, which may not be a strict seal, and that the sealing plate 5 may block particulate matter or other foreign matter from entering the second recess 1124.

In this embodiment, the sealing plate 5 is disposed to cover the opening of the second groove 1124 opposite to the second wall 1122, so that liquid or other foreign matters can be relieved from entering the second groove 1124, and the sealant 3 and the sealing plate 5 form a double-layer seal, so that the sealing performance of the case 1 is improved to a greater extent, and the reliability of the battery 100 using the case assembly 10 is improved.

In some embodiments, two partition members (not shown in the drawings) are provided in the second groove 1124, the two partition members being spaced apart along the extending direction of the second groove 1124, and the first mounting hole 113 being between the two partition members. So arranged, the partition member can partition the area where the first mounting holes 113 are provided from the area where the first mounting holes 113 are not provided, thereby reducing the area that the sealing plate 5 needs to cover, so that the size of the sealing plate 5 may be smaller than the size of the second groove 1124 in the extending direction of the second groove 1124, for example, the size of the sealing plate 5 is equal to the size of the two partition members, thus reducing the area of the sealing plate 5 and reducing the manufacturing cost.

In some embodiments, the sealing plate 5 is welded to the first and second rims 11211, 11231. That is, the sealing plate 5 is welded to the reinforcing beam 112. The welding can improve the connection stability and the connection strength of the reinforcing beam 112 and the sealing plate 5. Optionally, the sealing plate 5 is welded with the first flange 11211 and the second flange 11231 in a sealing manner, so as to further improve the sealing performance of the case 1.

Referring initially to fig. 17, 18, 19 and 20, and again to fig. 3, fig. 17 is an exploded schematic view of the tank assembly 10 of some embodiments of the present application, the angle of fig. 17 showing the interior of the tank 1; FIG. 18 is a schematic partial structural view of the tank assembly 10 according to still further embodiments of the present application; fig. 19 and 20 are schematic views of structures of different angles of the expansion beam 6 according to some embodiments of the present application. In some embodiments, a protrusion 1112 is formed on an inner surface of the bottom wall body 111 at a position corresponding to the first groove 1111 (fig. 17), the case assembly 10 further includes an expansion beam 6, the expansion beam 6 is disposed in the case 1, a third groove 61 is formed on a side of the expansion beam 6 facing the bottom wall 11, at least a portion of the protrusion 1112 is accommodated in the third groove 61, a third mounting hole 62 is formed on the expansion beam 6 (fig. 20), and the mount 2 is further disposed through the third mounting hole 62 (fig. 18).

The inner surface of the bottom wall body 111 is formed with protrusions 1112 at positions corresponding to the first grooves 1111, and the protrusions 1112 are protruding structures protruding from the inner surface of the bottom wall body 111. Specifically, along the thickness direction of the bottom wall body 111, the first groove 1111 corresponds to the protrusion 1112, and one surface of the bottom wall body 111 is the first groove 1111 and the other surface is the protrusion 1112. The inner surface of the bottom wall body 111 is a surface of the bottom wall body 111 facing the inside of the case 1, and the protrusions 1112 are located in the case 1.

Alternatively, the first groove 1111 and the protrusion 1112 are punched out of the bottom wall body 111, improving the production efficiency.

The expansion beam 6 is a buffering and energy absorbing member, and the expansion beam 6 may be used to absorb the expansion force of the battery cell 20. The expansion beam 6 may be Liang Kuangti (fig. 18) with cavities that have energy absorbing capabilities that reduce deformation of the expansion beam 6 when subjected to an external impact, while also allowing the expansion beam 6 to be weight-reduced.

The expansion beam 6 is formed with a third groove 61 on a side facing the bottom wall 11, and at least part of the protrusions 1112 is accommodated in the third groove 61, i.e., the protrusions 1112 are caught in the third groove 61. The third groove 61 is engaged with the protrusions 1112, so that, on the one hand, the installation of the expansion beam 6 is facilitated, and on the other hand, the protrusions 1112 can limit the expansion beam 6, and limit the expansion beam 6 from moving in the width direction thereof. On the other hand, the protrusions 1112 locally reinforce the structural strength of the expansion beam 6 at the positions of the third grooves 61.

The expansion beam 6 is formed with a third mounting hole 62, the third mounting hole 62 corresponds to the position of the first mounting hole 113, and the third mounting hole 62 may be a through hole, so that the mount 2 may be penetrated out of the third mounting hole 62, and the mount 2 is simultaneously penetrated in the first mounting hole 113 and the expansion beam 6.

In the present embodiment, the provision of the expansion beam 6 can absorb the expansion force of the battery cell 20, and the reliability of the battery 100 can be improved.

Referring to fig. 21, fig. 21 is a schematic structural view of a flexible layer 7 wrapping a mount 2 according to some embodiments of the present application. In some embodiments, the case assembly 10 further includes a flexible layer 7, the flexible layer 7 is wrapped around the periphery of the mount 2, and at least a portion of the flexible layer 7 is disposed between the hole wall of the first mounting hole 113 and the mount 2.

The flexible layer 7 is a non-rigid part and the flexible layer 7 has a deformability. The flexible layer 7 may be adhered to the outer periphery of the mount 2.

The flexible layer 7 is wrapped on the periphery of the mounting member 2, at least part of the flexible layer 7 is arranged in the first mounting hole 113, the flexible layer 7 is located between the mounting member 2 and the hole wall of the first mounting hole 113, and at this time, the sealant 3 can be arranged between the flexible layer 7 and the bottom wall 11.

Wherein, the flexible layer 7 is at least partially disposed in the first mounting hole 113, which means that the flexible layer 7 may not exceed the mounting hole, and the flexible layer 7 may also exceed the mounting hole, and extend to outside the first groove 1111, and as illustrated in fig. 21, the cross section of the flexible layer 7 is L-shaped, one side of the cross section of the flexible layer 7 is wrapped around the periphery of the mounting member 2, and the other side of the cross section of the flexible layer 7 extends to the flange of the end of the mounting member 2 and corresponds to the first flange 11211 and the second flange 11231 formed by the reinforcing beam 112.

The material of the flexible layer 7 includes, but is not limited to, silica gel, rubber, and the like.

In this embodiment, the flexible layer 7 is wrapped around the periphery of the mounting member 2, so that the mounting member 2 and the bottom wall 11 are in interference fit, a sealing gap can be reduced, a sealing position is formed, and the sealing performance of the box body 1 is improved.

Referring to fig. 21 in combination with fig. 14, in some embodiments, the tank assembly 10 further includes a shielding plate 8, the shielding plate 8 being disposed outside of the bottom wall 11, the shielding plate 8 being disposed between the reinforcement beam 112 and the second end sleeve 22 and covering an outer side of the bottom wall body 111. It should be appreciated that the protection plate 8 is also provided with through holes for the mounting member 2 to pass out. The side of the shielding plate 8 facing the bottom wall 11 forms a cavity for accommodating the flexible layer 7 or the like. In the embodiment provided with the sealing plate 5, the side of the shielding plate 8 facing the bottom wall 11 forms a cavity to accommodate the sealing plate 5.

The protection plate 8 is used for protecting the outer side surface of the bottom wall body 111, and reduces the possibility of damaging the bottom wall 11.

The embodiment also provides a battery 100, and the battery 100 includes the case assembly 10 provided in any of the embodiments.

The embodiment of the application also provides electric equipment, which comprises the battery 100 provided by the embodiment, and the battery 100 is used for supplying power to the electric equipment.

Referring to fig. 3, 4, 9, 17 and 18, the present embodiment also provides a tank assembly 10, the tank assembly 10 including a tank 1, a sleeve, an expansion beam 6, a sealing plate 5 and a seal 4.

The case 1 has a bottom wall 11, the bottom wall 11 is formed with a first mounting hole 113, the bottom wall 11 includes a bottom wall body 111 and a reinforcing beam 112, the bottom wall body 111 is punched to form a first mounting groove on an outer side surface of the bottom wall body 111, a convex portion 1112 is formed on an inner side surface of the bottom wall body 111, and the convex portion 1112 corresponds to a position of the first groove 1111. At least a portion of the reinforcement beam 112 is received in the first mounting groove. The reinforcing beam 112 includes a first wall 1121, a second wall 1122, and a third wall 1123 that are sequentially connected, the first wall 1121, the second wall 1122, and the third wall 1123 are sequentially connected to form a U shape, the second wall 1122 is disposed at a bottom of the first groove 1111, one end of the first wall 1121 away from the second wall 1122 forms a first flange 11211, the first flange 11211 extends in a direction away from the third wall 1123, one end of the third wall 1123 away from the second wall 1122 forms a second flange 11231, the second flange 11231 extends in a direction away from the first wall 1121, and the first flange 11211 and the second flange 11231 extend outside the first groove 1111.

The expansion beam 6 is accommodated in the case 1, a third groove 61 is formed in a side of the expansion beam 6 facing the protrusion 1112, the protrusion 1112 is at least partially accommodated in the third groove 61, and the expansion beam 6 is formed with a third mounting hole 62.

The first, second and third walls 1121, 1122 and 1123 enclose a second groove 1124, and a sealing plate 5 is used to cover an opening of the second groove 1124 opposite to the second wall 1122, and the sealing plate 5 is formed with a second mounting hole.

The first mounting hole 113, the second mounting hole and the third mounting hole 62 correspond, and the sleeve penetrates through the first mounting hole 113, the second mounting hole and the third mounting hole 62. A sealant 3 is filled between the bottom wall 11 and the sleeve, and the sealant 3 is arranged around the sleeve.

Referring to fig. 14, the sleeve includes a first end sleeve 21, a second end sleeve 22, a middle sleeve 23, and an adapter sleeve 24, the adapter sleeve 24 is disposed at one end of the middle sleeve 23, the first end sleeve 21 is connected to the adapter sleeve 24, the second end sleeve 22 is connected to the other end of the middle sleeve 23, the middle sleeve 23 includes a first section 231 and a second section 232 connected to each other, and the adapter sleeve 24 is disposed at the first section 231. The middle sleeve 23 is penetrated through the first, second and third mounting holes 113, 62.

In some embodiments, referring to fig. 13, the middle sleeve 23 includes a first section 231 and a second section 232, the second section 232 having a diameter greater than the diameter of the first section 231. A step 233 is formed between the second section 232 and the first section 231. A seal 4 is provided between the step 233 and the second wall 1122 of the reinforcement beam 112. The sealing element 4 is a sealing ring, and the sealing element 4 is sleeved on the middle sleeve 23.

In some embodiments, referring to fig. 21, the case assembly 10 further includes a flexible layer 7, wherein the flexible layer 7 is wrapped around the middle sleeve 23, and a portion of the flexible member is disposed between the wall of the first mounting hole 113 and the mount 2.

The temperature probe disclosed in the embodiments of the present application includes, but is not limited to, a temperature sensor for detecting the temperature of the battery cell 20, and may also detect the temperature of other objects. The embodiment of the present application is described taking the temperature probe for collecting the temperature of the battery cell 20 as an example.

The temperature probe disclosed in the embodiments of the present application may be used, but is not limited to, a chemical composition device or other device that can charge and discharge the battery 100 or test the performance of the battery 100.

The technical scheme described in the embodiment of the application is suitable for chemical composition equipment. The chemical composition device is a device that activates positive and negative active material layers inside the battery 100 by means of charge and discharge after the battery 100 is manufactured, improves self-discharge, charge and discharge performance and storage performance of the battery 100, and performs performance test on the battery 100 after the charge and discharge are completed.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.

The above embodiments are only for illustrating the technical solution of the present application, and are not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (12)

1. A tank assembly, comprising:

the box body comprises a bottom wall, wherein a first mounting hole is formed in the bottom wall;

and the mounting piece is penetrated through the first mounting hole, sealing glue is filled between the bottom wall and the mounting piece, and the sealing glue surrounds the mounting piece.

2. The tank assembly of claim 1, wherein the bottom wall includes a bottom wall body and a stiffening beam, the stiffening beam being disposed on an outer side of the bottom wall body, the first mounting hole extending through the bottom wall body and the stiffening beam, the sealant being disposed between the mount and the stiffening beam.

3. The tank assembly of claim 2 wherein the outer side of the bottom wall body is formed with a first recess, at least a portion of the reinforcement beam being received in the first recess.

4. A tank assembly according to claim 3, wherein the stiffening beam comprises a first wall, a second wall and a third wall connected in sequence, the second wall being disposed at the bottom of the first recess, the first wall and the third wall extending from the second wall in a direction away from the bottom of the first recess, the first mounting hole extending through the second wall.

5. The housing assembly of claim 4, wherein the mounting member comprises a first section and a second section connected to each other, the first section being disposed through the first mounting hole, at least a portion of the second section being received in the first recess, the second section having a diameter greater than a diameter of the first section such that a step is formed between the second section and the first section, the step and the second wall being provided with a seal therebetween.

6. The tank assembly of claim 4, wherein a first flange is formed at an end of the first wall remote from the second wall, the first flange extending in a direction away from the third wall, at least a portion of the first flange being located outside the first recess;

the third wall is kept away from the one end of second wall is formed with the second turn-ups, the second turn-ups is in keeping away from the direction of first wall extends, at least a portion of second turn-ups is located outside the first recess.

7. The tank assembly of claim 6, wherein the first wall, the second wall, and the third wall enclose a second groove, the tank assembly further comprising:

the sealing plate covers the opening of the second groove opposite to the second wall, one end of the sealing plate is connected to the first flanging, the other end of the sealing plate is connected to the second flanging, the sealing plate is provided with a second mounting hole corresponding to the first mounting hole, and the mounting piece is further arranged in the second mounting hole in a penetrating mode.

8. The tank assembly of claim 7, wherein the sealing plate is welded to the first flange and the second flange.

9. A tank assembly as claimed in claim 3, wherein the inner surface of the bottom wall body is formed with a convex portion at a position corresponding to the first recess, the tank assembly further comprising:

the expansion beam is arranged in the box body, a third groove is formed in one side of the expansion beam, which faces the bottom wall, at least part of the convex part is accommodated in the third groove, a third mounting hole is formed in the expansion beam, and the mounting piece is further arranged in the third mounting hole in a penetrating mode.

10. The tank assembly of claim 1, further comprising:

the flexible layer is coated on the periphery of the mounting piece, and at least one part of the flexible layer is arranged between the hole wall of the first mounting hole and the mounting piece.

11. A battery comprising the case assembly of any one of claims 1-10.

12. A powered device comprising a battery as recited in claim 11, the battery being configured to provide electrical power to the powered device.