CN117954768A - Box for battery, battery and electric equipment - Google Patents

Abstract

The embodiment of the application discloses a box body (20) for a battery (2), the battery (2) and electric equipment. The case (20) includes: a bottom plate (21); a beam (22), the beam (22) being connected to the base plate (21); the mounting assembly (8), one end of the beam (22) close to the bottom plate (21) is connected with the mounting assembly (8) and used for mounting the battery (2) on the electric equipment; when the battery (2) is hung on the electric equipment, the battery monomer (6) is positioned below the bottom plate (21). The technical scheme provided by the embodiment of the application is used for mounting the inverted box body on the electric equipment, and can improve the stability of the battery fixed on the electric equipment, so that the overall rigidity and the structural strength of the battery are improved, and the safe use of the battery is ensured.

Description

Box for battery, battery and electric equipment

Technical Field

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

Background

Energy conservation and emission reduction are key to sustainable development of the automobile industry. In this case, the electric vehicle is an important component of sustainable development in the automobile industry due to the advantage of energy saving and environmental protection. For electric vehicles, battery technology is an important factor for development.

When the battery is fixed on the electric equipment, such as an electric vehicle, the movement of the vehicle can lead to battery shaking, and the performance of the battery can be adversely affected due to the overlarge battery shaking range. Therefore, how to improve the stability of the battery fixed on the electric equipment and the overall rigidity and structural strength of the battery is a technical problem to be solved in the battery technology.

Disclosure of Invention

In view of the above problems, embodiments of the present application provide a box for a battery, and an electric device, which are used for mounting an inverted battery on the electric device, and can improve stability of the battery fixed on the electric device, improve overall rigidity and structural strength of the battery, and ensure safe use of the battery.

In a first aspect, a case for a battery is provided, including a base plate; a beam connected to the base plate; the mounting assembly is fixedly connected with one end of the beam, which is close to the bottom plate, and is used for mounting the battery on electric equipment; when the battery is mounted on the electric equipment, the battery monomer is positioned below the bottom plate.

In the embodiment of the application, the box body comprises a bottom plate, a beam and a mounting assembly; further, the beam is connected to the base plate. And a mounting assembly for mounting the battery on the electric equipment is fixedly connected with one end of the beam, which is close to the bottom plate, and when the battery is mounted on the electric equipment, the battery monomer is positioned below the bottom plate, namely, the mounting assembly is used for mounting the inverted box body containing the plurality of battery monomers on the electric equipment. By arranging the mounting structure, the mounting structure can be suitable for an inverted box body structure containing battery monomers, the overall rigidity and the structural strength of the battery in the box body with the inverted structure can be improved, and the structural reliability of the battery can be improved; and the box body is connected with electric equipment by utilizing the structure, so that the box body is convenient to disassemble and assemble.

In one possible implementation, the mounting assembly includes a connection sleeve; the connecting piece of the electric equipment is connected with the connecting sleeve in the connecting sleeve.

In the embodiment of the application, the mounting assembly is used for mounting the battery on the electric equipment. The connecting sleeve is arranged in the mounting assembly, and the connecting piece of the electric equipment can directly extend into the connecting sleeve and be connected with the connecting sleeve, so that the connection between the battery and the electric equipment is realized. Through set up the connecting sleeve that can the lug connection with the connecting piece of consumer in the mount subassembly, can realize that consumer and box link to each other directly, this connected mode is simple, and the dismouting is simple, can be in extensive use in extensive.

In one possible implementation, a fixing part is arranged outside the connecting sleeve, and the fixing part is fixedly connected with the beam.

In the embodiment of the application, the mounting assembly comprises the connecting sleeve which can be directly connected with the electric equipment, and also comprises the component which can be fixedly connected with the box body, so that the box body and the electric equipment can be fixedly connected. Through set up fixed part in the connecting sleeve's outside, this fixed part and roof beam fixed connection just can realize the fixed connection of mount subassembly and battery box.

In one possible implementation, the mounting assembly has a cross-shaped axial cross-section.

In the embodiment of the application, the mounting assembly comprises a connecting sleeve for connecting the box body with a connecting piece of electric equipment, and a fixing part for connecting the mounting assembly with the beam. The axial section of the mounting assembly is cross-shaped, namely the fixing parts on the outer side of the connecting sleeve are symmetrically distributed by taking the connecting sleeve as the center, so that the uniformity of the connection strength of the mounting assembly and the box body is improved, and uneven connection force between the fixing parts on the two sides and the connecting sleeve is avoided.

In one possible implementation, the fixing portion is disposed along an extending direction of the beam.

In the embodiment of the application, the mounting component is used as an intermediate component for connecting the box body with the electric equipment, namely, the mounting component is connected with the beam in the box body containing a plurality of battery monomers, and then the connecting piece of the electric equipment is connected with the mounting component, so that the connection between the box body and the electric equipment is realized. Through making the fixed part in the mounting subassembly set up along the extending direction of roof beam, be favorable to improving the joint strength of fixed part and roof beam, and then improve the joint strength of mounting subassembly and roof beam.

In one possible implementation manner, a clamping structure is arranged in the connecting sleeve, and the connecting piece is clamped with the connecting sleeve through the clamping structure.

In the embodiment of the application, the connecting sleeve is used for connecting the mounting assembly and the electric equipment. Set up the joint structure in the connecting sleeve, when the connecting piece enters into the connecting sleeve, realize the consumer through this joint structure and carry the connection of subassembly, this connected mode easy operation and connection effect are good.

In one possible implementation, a thread structure is provided in the connection sleeve, through which the connection piece is screwed with the connection sleeve.

In the embodiment of the application, the connecting sleeve is used for connecting the mounting assembly and the electric equipment. Set up the helicitic texture in the connecting sleeve, utilize the helicitic texture to realize that consumer and mounting subassembly are connected, this connected mode low in manufacturing cost and connection effect are good.

In one possible implementation, the bottom plate is provided with an opening, and the connecting sleeve extends out of the box body through the opening; the mounting assembly further includes a seal assembly that seals the aperture.

In the embodiment of the application, the mounting assembly is used for an inverted box structure, namely, the inverted box is mounted on electric equipment. The bottom plate is provided with the opening, the connecting sleeve extends out of the box body through the opening, the connecting area of the connecting sleeve and a connecting piece of electric equipment can be increased, and the connecting strength of the mounting assembly and the electric equipment is enhanced, so that the connecting strength of the box body and the electric equipment is enhanced. In addition, the sealing assembly is used for sealing the opening, so that the air tightness of the battery box body can be ensured.

In one possible implementation, the seal assembly includes a stationary sleeve and a first seal ring; the first sealing ring is arranged between the fixing part and the bottom plate, the fixing sleeve is connected with the part, extending out of the box body, of the connecting sleeve, and the bottom plate and the first sealing ring are tightly pressed on the fixing part.

In the embodiment of the application, the sealing component is used for ensuring the air tightness of the box body. The sealing assembly comprises a fixed sleeve and a first sealing ring, wherein the fixed sleeve is connected with the part of the connecting sleeve extending out of the box body, namely, the fixed sleeve seals an opening on the bottom plate to ensure the air tightness of the opening; the first sealing ring is arranged between the fixed part and the bottom plate and is pressed between the fixed part and the bottom plate by the fixed sleeve, so that the air tightness between the bottom plate and the fixed part is ensured. Through setting up fixed sleeve and first sealing washer, guaranteed the gas tightness of setting up the trompil department on the bottom plate and between bottom plate and the fixed part.

In one possible implementation, the sealing assembly further includes a second sealing ring disposed between the beam and the fixed portion.

In the embodiment of the application, the air tightness between the opening on the bottom plate and the fixing part is ensured by arranging the fixing sleeve and the first sealing ring. In addition, set up the second sealing washer again, the second sealing washer sets up between roof beam and fixed part, can guarantee the gas tightness between roof beam and the fixed part like this, and then guarantee the gas tightness of whole box.

In one possible implementation, the fixing portion is connected to the beam by at least one of a blind rivet, a blind rivet or a bolt fastener.

In the embodiment of the application, at least one of the blind rivet, the self-plugging rivet or the bolt fastener is connected with the beam, and the connecting mode is simple, the raw materials are easy to obtain, the cost is lower, and the wide application is facilitated.

In a second aspect, there is provided a battery comprising: a plurality of battery cells; the case according to the first aspect, the case is for accommodating a plurality of battery cells.

In a third aspect, there is provided a powered device comprising: the battery according to the second aspect, the battery being for supplying electric power.

Drawings

FIG. 1 is a schematic view of a vehicle according to an embodiment of the present application;

fig. 2 is an exploded view of a battery according to an embodiment of the present application;

Fig. 3 is an exploded view of a battery cell according to an embodiment of the present application;

fig. 4 is a schematic view of a battery according to another embodiment of the present application;

FIG. 5 is a schematic view of a partial detail corresponding to position A in FIG. 4;

FIG. 6 is a schematic view of another partial detail corresponding to position A in FIG. 4;

FIG. 7 is a schematic view of still another partial detail corresponding to position A in FIG. 4;

FIG. 8 is a schematic view of still another partial detail corresponding to position A in FIG. 4;

Reference numerals in the specific embodiments are as follows:

vehicle 1, battery 2, battery module 3, battery cell 6, mounting assembly 8;

Controller 11, motor 12, case 20, bottom plate 21, beam 22, electrode assembly 61, case 62, electrode terminal 63, connecting member 64, pressure release mechanism 65, connecting sleeve 81, fixing portion 82, snap structure 83, seal assembly 84, blind rivet nut 85, blind rivet 86, bolt fastener 87;

the first case 201, the second case 202, the accommodation space 203, the opening 211, the case 621, the end cap 622, the positive electrode terminal 631, the negative electrode terminal 632, the screw structure 811, the fixing sleeve 841, the first seal ring 842, and the second seal ring 843.

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.

In the present application, the battery cell may include a lithium metal secondary battery, a sodium metal battery, a magnesium metal battery, or the like, and the embodiment of the present application is not limited thereto. The battery cell may be in a cylindrical, flat, or other shape, and the embodiment of the application is not limited thereto. The battery cells are generally classified into three types according to the packaging method: the cylindrical battery cell, the square battery cell and the soft package battery cell are not limited in this embodiment. For convenience of explanation, the following examples will be described with reference to lithium metal batteries.

Reference to a battery in accordance with an embodiment 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 body can prevent liquid or other foreign matters from affecting the charge or discharge of the battery cells.

After the battery is installed on the electric equipment, for example, in the embodiment of the application, the electric automobile is taken as an example, so that the battery can shake, and the performance of the battery can be adversely affected due to the excessive battery shake amplitude.

In order to fix the battery, one way is to fix the battery by matching a lock shaft provided on the battery box and a lock structure provided on the frame of the electric vehicle. Alternatively, the battery may be mounted on the frame by a mounting structure, for example, the battery case may be mounted by a mounting structure provided in a case beam inside the battery. In the case of carrying out the mount to the battery with the mount structure on the box roof beam, battery box is inside generally to include a plurality of battery monomers, and moreover, is provided with crossbeam or longeron between a plurality of battery monomers generally, and above-mentioned box roof beam promptly, the mount structure that sets up on the box roof beam can run through the upper portion of box, box roof beam and the bottom of box. And the middle part of the mounting structural member can be reserved with a space, so that the battery can be mounted on the frame by inserting other structures into the mounting structural member from the frame.

However, when the box girder is used for mounting the battery, a certain distance is reserved between the box upper cover and the box girder, and the box girder is only suitable for the situation that the battery is arranged in the forward direction, and the existing mounting structural member cannot meet the mounting requirement when the battery is required to be mounted in an inverted mode.

In order to solve the problems, the embodiment of the application provides a box for a battery, which is suitable for hanging an inverted battery on electric equipment, and the mounting assembly can improve the stability of the battery fixed on the electric equipment, improve the integral rigidity and the structural strength of the battery and ensure the safe use of the battery.

The box body described in the embodiment of the application is suitable for batteries and electric equipment using the batteries.

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 explanation, the following embodiments take electric equipment as an example of a vehicle.

Fig. 1 is a schematic structural diagram of a vehicle 1 according to an embodiment of the present application. As shown in fig. 1, the interior of the vehicle 1 is provided with a battery 2, and the battery 2 may be provided at the bottom or at the head or at the tail of the vehicle 1. The battery 2 may be used for power supply of the vehicle 1, for example, the battery 2 may serve as an operating power source of the vehicle 1.

The vehicle 1 may further comprise a controller 11 and a motor 12, the controller 11 being adapted to control the battery 2 to supply the motor 12 with electric power, e.g. for operating power requirements during start-up, navigation and driving of the vehicle 1.

In some embodiments of the application, the battery 2 may not only serve as an operating power source for the vehicle 1, but also as a driving power source for the vehicle 1, instead of or in part instead of fuel oil or natural gas, to provide driving power for the vehicle 1.

Fig. 2 is an exploded view of a battery 2 according to an embodiment of the present application. As shown in fig. 2, the battery 2 includes a case 20 and a battery module 3. The battery module 3 includes a plurality of battery cells 6, and the battery module 3 is accommodated in the case 20.

The case 20 is for accommodating the battery cells 6. The housing 20 may be of various configurations. In some embodiments, the case 20 may include a first case portion 201 and a second case portion 202, the first case portion 201 and the second case portion 202 being overlapped with each other, the first case portion 201 and the second case portion 202 together defining an accommodating space 203 for accommodating the battery cell 6. The second case 202 may have a hollow structure with one end opened, the first case 201 has a plate-like structure, and the first case 201 is covered on the opening side of the second case 202 to form the case 20 having the accommodation space 203; the first case 201 and the second case 202 may each have a hollow structure with one side opened, and the opening side of the first case 201 is covered with the opening side of the second case 202 to form the case 20 having the accommodation space 203. Of course, the first and second case portions 201 and 202 may be of various shapes, such as a cylinder, a rectangular parallelepiped, or the like.

In order to improve the sealing property after the first case 201 and the second case 202 are connected, a sealing member, such as a sealant, a gasket, or the like, may be provided between the first case 201 and the second case 202.

Assuming that the first housing portion 201 is covered on top of the second housing portion 202, the first housing portion 201 may also be referred to as an upper case cover, and the second housing portion 202 may also be referred to as a lower case.

In the battery 2, the number of battery cells 6 is plural. The plurality of battery cells 6 can be connected in series or in parallel, and the series-parallel connection refers to that the plurality of battery cells 6 are connected in series or in parallel. The plurality of battery cells 6 can be directly connected in series or in parallel or in series-parallel, and then the whole formed by the plurality of battery cells 6 is accommodated in the box body 20; of course, a plurality of battery cells 6 may be connected in series or parallel or series-parallel to form a battery module (not shown in the figure), and then connected in series or parallel or series-parallel to form a whole and accommodated in the case 20. The plurality of battery cells 6 in the battery module may be electrically connected through the bus bar member to realize parallel connection or series-parallel connection of the plurality of battery cells 6 in the battery module.

As shown in fig. 3, which is a schematic structural view of a battery cell 6 according to an embodiment of the present application, the battery cell 6 includes one or more electrode assemblies 61, a case 621, and an end cap 622. The housing 621 and end cap 622 form the outer shell or battery compartment 62. The wall of the case 621 and the end cap 622 are referred to as the wall of the battery cell 6, wherein for a rectangular parallelepiped type battery cell 6, the wall of the case 621 includes a bottom wall and four side walls. The case 621 is dependent on the shape of the combined one or more electrode assemblies 61, for example, the case 621 may be a hollow rectangular parallelepiped or square or cylindrical body, and one face of the case 621 has an opening so that one or more electrode assemblies 61 may be placed in the case 621. For example, when the housing 621 is a hollow rectangular parallelepiped or square, one of the flat surfaces of the housing 621 is an opening surface, i.e., the flat surface has no wall body so that the inside and outside of the housing 621 communicate. When the housing 621 may be a hollow cylinder, the end face of the housing 621 is an opening face, i.e., the end face has no wall body so that the inside and outside of the housing 621 communicate. End cap 622 covers the opening and is connected to case 621 to form a closed cavity in which electrode assembly 61 is placed. The housing 621 is filled with an electrolyte, such as an electrolyte solution.

The battery cell 6 may further include two electrode terminals 63, and the two electrode terminals 63 may be disposed on the end cap 622. The end cap 622 is generally in the shape of a flat plate, and two electrode terminals 63 are fixed to the flat plate surface of the end cap 622, the two electrode terminals 63 being a positive electrode terminal 631 and a negative electrode terminal 632, respectively. One connection member 64, or may also be referred to as a current collecting member 64, is provided for each electrode terminal 63, and is located between the end cap 622 and the electrode assembly 61 for electrically connecting the electrode assembly 61 and the electrode terminal 63.

In the battery cell 6, the battery assembly 61 may be provided in a single unit or in a plurality of units according to actual use requirements, and as shown in fig. 3, 4 independent battery assemblies 61 are provided in the battery cell 6.

The battery cell 6 may also be provided with a pressure release mechanism 65. The pressure release mechanism 65 is used to actuate to release the internal pressure or temperature of the battery cell 6 when the internal pressure or temperature reaches a threshold.

The pressure relief mechanism 65 may be any of a variety of possible pressure relief structures, and embodiments of the present application are not limited in this regard. For example, the pressure release mechanism 65 may be a temperature-sensitive pressure release mechanism configured to be able to melt when the internal temperature of the battery cell 6 provided with the pressure release mechanism 65 reaches a threshold value; and/or the pressure relief mechanism 65 may be a pressure sensitive pressure relief mechanism configured to be able to rupture when the internal air pressure of the battery cell 6 provided with the pressure relief mechanism 65 reaches a threshold value.

Fig. 4 is a schematic structural view of a battery according to another embodiment of the present application, and fig. 5 is a schematic partial detail view corresponding to a position a in fig. 4. As shown in fig. 4 and 5, the case 20 for the battery 2 includes: a bottom plate 21; a beam 22, the beam 22 being connected to the base plate 21; the mounting assembly 8 is fixedly connected with one end of the beam 22, which is close to the bottom plate 21, and is used for mounting the battery 2 on electric equipment; when the battery 2 is mounted on the electric equipment, the battery monomer 6 is positioned below the bottom plate 21.

As described above, the plurality of battery cells 6 are accommodated in the case 20. The case 20 includes an upper cover, a bottom plate 21, a beam 22, and the like, and the first case portion 201 and the second case portion 202 of the case 20 together define an accommodating space 203 accommodating the plurality of battery cells 6. When the inverted case 20 is connected with the electric device, the bottom plate 21 is located above the upper cover, and the plurality of battery cells 6 are located below the bottom plate 21.

In the embodiment of the present application, the beam 22 may be a cross beam or a longitudinal beam inside the box 20, or may be a side beam at the edge of the box.

The mounting component 8 is used for mounting the battery 2 into the electric equipment so that the battery 2 provides electric energy for the electric equipment.

In the embodiment of the application, the battery 2 comprises a box 20, and the box 20 comprises a plurality of battery cells 6. The mounting assembly 8 mounts the battery 2 to the powered device, i.e., the case 20 is mounted to the powered device. In addition, when the battery 2, that is, the case 20 is mounted on the electric device, the case 20 is inverted, but the position of the battery cell 6 is not limited.

The box 20 comprises a bottom plate 21, a beam 22 and a mounting assembly 8; further, a beam 22 is connected to the base plate 21. And a mounting assembly 8 for mounting the box 20 on the electric equipment is fixedly connected with one end of the beam 22, which is close to the bottom plate 21, and when the battery 2 is mounted on the electric equipment, the battery unit 6 is located below the bottom plate 21, i.e. the mounting assembly 8 is used for mounting the inverted box 20 containing a plurality of battery units 6 on the electric equipment.

In the above scheme, by arranging the mounting structure, the mounting structure can be suitable for mounting the inverted box body 20, and the overall rigidity and the structural strength of the battery 2 mounted on the electric equipment can be improved, so that the structural reliability of the battery 2 is improved; and the box 20 is connected with electric equipment by utilizing the structure, so that the disassembly and the assembly are convenient.

In some embodiments, as shown in fig. 5, mounting assembly 8 includes a connection sleeve 81; wherein the connector of the electric equipment is connected with the connecting sleeve 81 in the connecting sleeve 81.

The connection sleeve 81 is a cylindrical object having a certain thickness, and functions as a connection. In the embodiment of the present application, the connecting sleeve 81 may be square as shown in fig. 5, or may be in other shapes, and the shape of the connecting sleeve 81 is not limited in the present application, and may be changed according to the shape of the connector of the electric device in actual production. Also, the present application is not limited in any way to the material of the connection sleeve 81.

The mounting assembly 8 is used for mounting the battery 2 on the electric equipment. A connecting sleeve 81 is arranged in the mounting assembly 8, and the connecting sleeve 81 can enable a connecting piece of electric equipment to directly extend into the connecting sleeve 81 and be connected with the connecting piece of the electric equipment, so that the connection between the box 20 and the electric equipment is realized.

In the above scheme, through setting up the connecting sleeve 81 that the connecting piece of consumer can direct connect in the mount subassembly 8, can realize that consumer and box 20 directly link to each other, this connected mode is simple, and the dismouting is simple, can be in extensive use in the large scale.

In some embodiments, as shown in fig. 5, a fixing portion 82 is provided outside the connection sleeve 81, and the fixing portion 82 is fixedly connected with the beam 22.

The mounting assembly 8 includes a connection sleeve 81 that enables the housing 20 to be directly connected to the powered device, and also includes a component that enables the mounting assembly 8 to be fixedly connected to the housing 20, so that the housing 20 can be fixedly connected to the powered device.

In the embodiment of the present application, the shape and the material of the fixing portion 82 are not limited at all.

In the above-described embodiment, the fixing portion 82 is provided on the outer side of the connection sleeve 81, and the fixing portion 82 is fixedly connected to the beam 22, so that the mount assembly 8 and the case 20 can be fixedly connected.

In some embodiments, the mounting assembly 8 is cross-shaped in axial cross-section.

Mounting assembly 8 includes a connection sleeve 81 for connecting housing 20 to a connection of a powered device and a securing portion 82 for connecting mounting assembly 8 to beam 22. For a better fixing connection of the mounting assembly 8 to the beam 22, the fixing portions 82 should be present on both sides of the connecting sleeve 81, so that the whole connecting sleeve 81 can be fixed to the beam 22 instead of only one side.

In the above-mentioned scheme, make the axial cross-section of mount subassembly 8 be cross, the fixed part 82 in the outside of connecting sleeve 81 is as central symmetry distribution, is favorable to improving the homogeneity of mount subassembly 8 and box 20's joint strength like this, avoids two fixed part 82 and connecting sleeve 81's joint force inequality.

In some embodiments, the securing portion 82 is disposed along the extension of the beam 22.

The mounting assembly 8 serves as an intermediate part for connecting the box 20 with electric equipment, namely the mounting assembly 8 is connected with the beam 22 in the box 20, and then the connecting piece of the electric equipment is connected with the mounting assembly 8, so that the box 20 can be connected with the electric equipment.

In the above-mentioned scheme, the fixing portion 82 in the mounting assembly 8 is arranged along the extending direction of the beam 22, so that the connection strength between the fixing portion 82 and the beam 22 is improved, and the connection strength between the mounting assembly 8 and the beam 22 is further improved.

With continued reference to fig. 5, in some embodiments, a clamping structure 83 is disposed in the connecting sleeve 81, and the connecting member is clamped to the connecting sleeve 81 by the clamping structure 83.

The snap-fit structure 83 is a common method of connecting two components. In the embodiment of the application, the connecting sleeve 81 is connected with the connecting piece of the electric equipment by the clamping structure 83, so that the complex methods of threaded connection, clamping, pasting and the like can be avoided. In addition, repeated installation and removal without damaging the parts can be achieved using the clip structure 83.

In the above-mentioned scheme, the connecting sleeve 81 is used for connecting the mounting assembly 8 and the electric equipment. The clamping structure 83 is arranged in the connecting sleeve 81, and when a connecting piece enters the connecting sleeve 81, connection between electric equipment and the mounting assembly 8 is achieved through the clamping structure 83, and the connecting mode is easy to operate and good in connecting effect.

Fig. 6 is a schematic diagram of another partial detail corresponding to position a in fig. 4. As shown in fig. 6, in some embodiments, a threaded structure 811 is provided within the connection sleeve 81, and the connection member is screwed with the connection sleeve 81 by the threaded structure 811.

In the above-mentioned scheme, the connecting sleeve 81 is used for connecting the mounting assembly 8 and the electric equipment. A thread structure 811 is provided in the connection sleeve 81, and connection of the consumer to the mounting assembly 8 is achieved by means of the thread structure 811, which is inexpensive to manufacture and has a good connection result.

In some embodiments, as shown in fig. 6, an opening 211 is provided on the base plate 21, and the connection sleeve 81 protrudes from the case 20 through the opening 211; mounting assembly further includes a seal assembly 84, seal assembly 84 sealing opening 211.

The mounting assembly 8 is suitable for use in an inverted case 20 configuration, i.e., for mounting an inverted case 20 to a powered device. The bottom plate 21 is provided with an opening 211, and the connecting sleeve 81 extends out of the box 20 through the opening 211, so that the connecting area of the connecting sleeve 81 and a connecting piece of electric equipment can be increased; and for the case 20, it is possible to secure the air tightness of the case 20.

In the above-mentioned scheme, set up trompil 211 in bottom plate 21, connecting sleeve 81 stretches out box 20 through this trompil 211, has increased the junction area of connecting sleeve 81 and the connecting piece of consumer, this just has increased the joint strength of mount subassembly 8 and consumer to can increase the joint strength of box 20 and consumer. In addition, the airtight property of the battery case 20 can be ensured by sealing the opening 211 with the sealing member 84.

In some embodiments, the seal assembly 84 includes a stationary sleeve 841 and a first seal ring 842; the first seal ring 842 is disposed between the fixing portion 82 and the bottom plate 22, and the fixing sleeve 841 and the connecting sleeve 81 are pressed against the fixing portion 82.

In the embodiment of the present application, the sealing assembly 84 is used to ensure the air tightness of the case 20. The seal assembly 84 includes a stationary sleeve 841 and a first seal ring 842. Wherein the fixing sleeve 841 is connected to the portion of the connection sleeve 81 extending out of the case 20, that is, the fixing sleeve 841 seals the opening 211 of the bottom plate 21, thereby securing the air tightness at the opening 211. The first sealing ring 842 is disposed between the fixing portion 82 and the bottom plate 21, and is pressed between the fixing portion 82 and the bottom plate 21 by the fixing sleeve 841, thereby ensuring air tightness between the bottom plate 21 and the fixing portion 82.

The first seal ring 842 is used to ensure tightness between the bottom plate 21 and the fixing portion 82. Therefore, the number of the first sealing rings 842 is not limited in the present application, and the first sealing rings 842 may be provided according to the sealing condition between the bottom plate 21 and the fixing portion 82 in the actual production process. The physical properties, that is, the materials and the like of the first seal ring 842 are not particularly limited in the present application, as long as the first seal ring 842 plays its own sealing role.

In the above-described embodiment, the fixing sleeve 841 and the first seal ring 842 ensure the air tightness between the opening 211 provided in the bottom plate 21 and the fixing portion 82.

In some embodiments, the seal assembly 84 further includes a second seal ring 843, the second seal ring 843 being disposed between the beam 22 and the stationary portion 82.

As described above, by providing the fixing sleeve 841 and the first sealing ring 842, the air tightness between the opening 211 on the bottom plate 21 and the fixing portion 82 is ensured. In addition, a sealing member is also provided between the fixing portion 82 and the beam 22 to ensure air tightness therebetween.

The number and any aspects of the second seal rings 843 are not particularly limited, and may be set as needed in the actual production process.

In the above-mentioned scheme, through setting up the second sealing washer 843, the second sealing washer 843 sets up between roof beam 22 and fixed part 82, can guarantee the gas tightness between roof beam 22 and the fixed part 82 like this, and then guarantee that the gas tightness of whole box 20 is good.

Fig. 7 and 8 are schematic views of two further partial details corresponding to position a in fig. 4. As shown in fig. 6 to 8, the fixing portion 82 is connected to the beam by at least one of a blind rivet 86 or a bolt fastener 87 by a blind rivet nut 85.

The rivet nut 85 can solve the defects of easy melting of a metal sheet and a thin Guan Hanjie nut, easy sliding of a tapping internal thread and the like, and the rivet nut 85 does not need to be welded, has high riveting firmness and efficiency and is convenient to use.

The blind rivet 86 is particularly suitable for the occasion of using common rivets, and is widely applied to products such as buildings, automobiles and the like. In the embodiment of the present application, when the beam 22 and the fixing portion 82 are smooth, a countersunk blind rivet may be used; when the requirements on load and tightness are high, closed blind rivets can be used. The foregoing is merely illustrative, and the present application is not limited in any way by the type of blind rivet 86.

The bolt fastener 87 is a type of fastener consisting of a head portion and a screw portion, and is used in combination with a nut for fastening two through-hole-formed members. In an embodiment of the present application, the bolt fastener 87 may be an expansion type bolt, or the like.

In the above scheme, the fixing portion 82 is connected with the beam 22 through at least one of the rivet nut 85, the blind rivet 86 or the bolt fastener 87, so that the connection between the mounting assembly 8 and the box 20 is realized, and the connection mode is simple, low in cost and beneficial to wide application.

Referring to fig. 4 and 6, an embodiment of the present application provides a case 20 for a battery 2 according to some embodiments of the present application. The box 20 comprises a bottom plate 21, a beam 22 and a mounting assembly 8; further, the beam 22 is connected with the bottom plate 21, the mounting assembly 8 is connected with one end of the beam 22 close to the bottom plate 21, and when the mounting assembly 8 mounts the battery 2 on the electric equipment, the battery unit 6 in the box 20 is located below the bottom plate 21. Mounting assembly 8 includes a connecting sleeve 81, a securing portion 82, and a sealing assembly 84. The connection sleeve 81 is provided with a screw structure 811; the fixing portion 82 having a cross-shaped axial section extends along the extending direction of the beam 22, and the fixing portion 82 is fixedly connected to the beam 22 by a rivet nut 85. The base plate 21 is provided with an opening 211, and the sealing member 84 including the fixing sleeve 841, the first sealing ring 842 and the second sealing ring 843 seals the opening 211 and ensures the overall air tightness of the case 20.

The embodiment of the application also provides a battery, which comprises: a plurality of battery cells 6; the case 20 in any of the above embodiments, the case 20 is for accommodating a plurality of battery cells 6.

The embodiment of the application also provides electric equipment, which comprises the battery 2 in any embodiment, wherein the battery 2 is used for providing electric energy.

While the application has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. 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 (13)

1. A case (20) for a battery (2), characterized by comprising:

A bottom plate (21);

-a beam (22), said beam (22) being connected to said base plate (21);

the mounting assembly (8) is fixedly connected with one end, close to the bottom plate (21), of the beam (22) and used for mounting the battery (2) on electric equipment;

when the battery (2) is mounted on the electric equipment, the battery monomer (6) is positioned below the bottom plate (21).

2. The case (20) according to claim 1, wherein the mounting assembly (8) comprises:

a connecting sleeve (81);

Wherein the connecting piece of the electric equipment is connected with the connecting sleeve (81) in the connecting sleeve (81).

3. The tank (20) according to claim 2, characterized in that a fixing portion (82) is provided outside the connecting sleeve (81), the fixing portion (82) being fixedly connected with the beam (22).

4. The tank (20) according to claim 2, characterized in that the mounting assembly (8) has a cross-shaped axial section.

5. A tank (20) according to claim 3, wherein the fixing portion (82) is provided along the extending direction of the beam (22).

6. The case (20) according to any one of claims 2 to 5, wherein a clamping structure (83) is provided in the connection sleeve (81), and the connection member is clamped with the connection sleeve (81) by the clamping structure (83).

7. The tank (20) according to any one of claims 2 to 5, characterized in that a threaded structure (811) is provided in the connection sleeve (81), by means of which threaded structure (811) the connection piece is screwed with the connection sleeve (81).

8. -The case (20) according to any one of claims 2 to 5, characterized in that the bottom plate (21) is provided with an opening (211), the connection sleeve (81) protruding out of the case (20) through said opening (211);

the mounting assembly (8) further comprises:

-a sealing assembly (84), said sealing assembly (84) sealing said opening (211).

9. The tank (20) of claim 8, wherein the seal assembly (84) includes:

a fixing sleeve (841) and a first sealing ring (842);

the first sealing ring (842) is arranged between the fixing part (82) and the bottom plate (21), the fixing sleeve (841) is connected with the part, extending out of the box body (20), of the connecting sleeve (81), and the bottom plate (21) and the first sealing ring (842) are pressed on the fixing part (82).

10. The tank (20) of claim 8, wherein the seal assembly (84) further comprises:

And a second seal ring (843), wherein the second seal ring (843) is arranged between the beam (22) and the fixing part (82).

11. The tank (20) of any one of claims 3 to 5, wherein the securing portion (82) is connected to the beam (22) by at least one of a blind rivet (86) or a bolt fastener (87) by a blind rivet nut (85).

12. A battery (2), characterized by comprising:

a plurality of battery cells (6);

the case (20) according to any one of claims 1 to 11, the case (20) being for accommodating a plurality of the battery cells (6).

13. A powered device, comprising:

the battery (2) according to claim 12, the battery (2) being adapted to provide electrical energy.