CN221668992U - Box, battery and power consumption device - Google Patents

Abstract

The application discloses a box body, a battery and an electric device. The battery comprises a battery cell, a frame body, a cover body, a connecting component and a sealing component. The frame body is provided with an assembly hole, and the frame body defines an accommodating space with an opening, and the accommodating space is used for accommodating the battery cells. The cover body covers the opening, and the cover body is provided with a connecting hole corresponding to the assembly hole. The connecting assembly penetrates through the connecting hole and the assembly hole to connect the frame body and the cover body. The sealing component is arranged on one side of the cover body, which faces the accommodating space, and comprises a clamping ring and a first sealing piece, wherein the clamping ring is sleeved outside the connecting component and is abutted with the cover body, and the first sealing piece is arranged between the clamping ring and the cover body. By arranging the first sealing element, the sealing performance of the battery is enhanced, and the running stability of the battery is improved. Meanwhile, the first sealing piece is arranged on the clamping ring, so that the sealing piece arranged on the connecting assembly is replaced, the whole volume of the connecting assembly is reduced, the material consumption is reduced, and the cost is reduced.

Description

Box, battery and power consumption device

Technical Field

The application relates to the field of batteries, in particular to a box body, a battery and an electric device.

Background

Batteries are widely used in electronic devices such as cellular phones, notebook computers, battery cars, electric vehicles, electric airplanes, electric ships, electric toy vehicles, electric toy ships, electric toy airplanes, electric tools, energy storage systems, and the like.

At present, how to reduce the risk of explosion and combustion of the battery and improve the running stability of the battery is one of the problems studied in the field.

Disclosure of utility model

In view of the above problems, the present application provides a case, a battery, and an electric device, which can reduce the risk of explosion and combustion of the battery and improve the operation stability of the battery.

In a first aspect, the application provides a battery comprising a battery cell, a frame, a cover, a connection assembly, and a seal assembly. The frame body is provided with an assembly hole, and the frame body defines an accommodating space with an opening, and the accommodating space is used for accommodating the battery cells. The cover body covers the opening, and the cover body is provided with a connecting hole corresponding to the assembly hole. The connecting assembly penetrates through the connecting hole and the assembly hole to connect the frame body and the cover body. The sealing component is arranged on one side of the cover body, which faces the accommodating space, and comprises a clamping ring and a first sealing piece, wherein the clamping ring is sleeved outside the connecting component and is abutted with the cover body, and the first sealing piece is arranged between the clamping ring and the cover body.

According to the technical scheme provided by the embodiment of the application, the frame body is arranged to provide a stable space for the battery monomer, so that the running stability of the battery monomer is improved, the battery box body is convenient to connect with other parts, and the stability of the connecting structure is improved. And (3) setting a connecting assembly to stably connect the cover body and the frame body. In particular, set up the snap ring in the seal assembly, encircle coupling assembling and with the lid butt, can reduce the condition that impurity got into the battery inside through the clearance between coupling assembling and the lid and take place to still be provided with first sealing member, further strengthened sealing performance, improved battery operation's stability.

In some embodiments, the connecting assembly includes a connecting sleeve disposed in the assembly hole and a fastener disposed through the connecting hole and disposed within the connecting sleeve to connect the cover and the connecting sleeve. The structure can firstly set the connecting sleeve on the frame body, then set the cover body, finally pass the fastening piece from the connecting hole of the cover body and connect with the connecting sleeve, thereby improving the positioning accuracy, and improving the connecting strength and the assembly efficiency between the cover body and the frame body.

In some embodiments, the snap ring includes a body portion and a mounting portion. The periphery of connecting sleeve is located to main part cover, and the installation department outwards extends along main part face that deviates from connecting sleeve and forms, and installation department and lid butt, and first sealing member is located between installation department and the lid. The structure comprises a main body part, a mounting part and a sealing part, wherein the main body part is used for stably connecting the clamping ring and the sleeve, the contact area between the mounting part and the cover body is increased, the sealing performance is improved, and a sufficient mounting area is provided for mounting the first sealing element.

In some embodiments, the snap ring protrudes toward one side of the connection sleeve to form a first protrusion, and the surface of the connection sleeve is concave inward to form a first recess, and the first protrusion is inserted into the first recess. The structure improves the connection stability of the connecting sleeve and the main body part by arranging the first convex part and the first concave part, and improves the assembly efficiency between the clamping ring and the connecting assembly.

In some embodiments, the seal assembly further comprises a second seal disposed between the snap ring and the connection assembly. The structure improves the tightness between the cover body and the mounting part by arranging the first sealing element, and improves the tightness between the main body part and the connecting sleeve by arranging the second sealing element. The second sealing member and the first sealing member are combined to act, so that risks that impurities, moisture and the like enter the battery can be effectively reduced.

In some embodiments, the snap ring is recessed toward a side surface of the cover to form a first annular groove, at least a portion of the first seal being received in the first annular groove. Foretell structure carries out spacingly through setting up first annular groove to first sealing member, reduces the risk that first sealing member takes place the displacement and leads to sealing performance to reduce, has improved the efficiency of leakproofness and assembly.

In some embodiments, the cover is a heat exchange plate, and a heat exchange flow channel is arranged in the heat exchange plate, and the heat exchange plate is used for exchanging heat with the battery monomer. According to the structure, the heat exchange flow channel is arranged on the cover body, so that the heat exchange area is increased, the heat exchange efficiency is improved, and the running stability of the battery is improved.

In some embodiments, the connecting sleeve is of unitary construction with the snap ring. The structure improves the assembly efficiency and the connection stability of the connecting sleeve and the clamping ring.

In some embodiments, the frame body comprises a surrounding frame and a cross beam, the surrounding frame is internally provided with a containing space, the cross beam is arranged in the surrounding frame, and the assembly holes are formed in the cross beam. The structure is characterized in that the connection between the cover body and the frame body is arranged inside the surrounding frame, so that the connection stability between the cover body and the frame body is improved.

In a second aspect, the present application provides an electrical device comprising a battery according to the above embodiments, the battery being configured to provide electrical energy.

In a third direction, the application provides a box body, which comprises a frame body, a cover body, a connecting component and a sealing component. The frame body is provided with an assembly hole, and the frame body defines an accommodating space with an opening, and the accommodating space is used for accommodating the battery cells. The cover body covers the opening, and the cover body is provided with a connecting hole corresponding to the assembly hole. The connecting assembly penetrates through the connecting hole and the assembly hole to connect the frame body and the cover body. The sealing component is arranged on one side of the cover body, which faces the accommodating space, and comprises a clamping ring and a first sealing piece, the clamping ring is sleeved outside the connecting component and is abutted with the cover body, and the first sealing piece is arranged between the clamping ring and the cover body.

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

Drawings

Features, advantages, and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

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

Fig. 2 is a schematic structural view of a battery according to an embodiment of the present application;

fig. 3 is a schematic view showing a partial structure of a battery according to an embodiment of the present application;

Fig. 4 is an exploded view of a battery cell according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a frame according to an embodiment of the present application;

FIG. 6 is a schematic structural view of a connecting assembly and a sealing assembly according to an embodiment of the present application;

FIG. 7 is a schematic cross-sectional view of the structure at A-A in FIG. 2;

FIG. 8 is a schematic cross-sectional view of a seal assembly according to one embodiment of the present application;

fig. 9 is a schematic structural diagram of a snap ring according to an embodiment of the present application.

Detailed description of the reference numerals

1. A vehicle; 2. a battery; 10. an electrode assembly; 20. a housing; 24. a pressure release mechanism; 30. an end cap; 40. a housing; 3. a controller; 4. a motor; 5. a case; 51. a surrounding frame; 52. a cross beam; 53. an accommodation space; 501. a frame; 502. a connection assembly; 503. a seal assembly; 504. a fitting hole; 505. a connection hole; 506. a connecting sleeve; 507. a fastener; 507A, first bolts; 507B, a second bolt; 508. a clasp; 510. a main body portion; 511. a mounting part; 512. a first seal; 513. a second seal; 514. a first annular groove; 515. a first concave portion; 516. a first convex portion; 6. a cover body; 7. a battery cell; 8. bus bar.

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.

The term "and/or" in the present application is merely an association relation describing the association object, and indicates that three kinds of relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In the present application, the character "/" generally indicates that the front and rear related objects are an or relationship.

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

Along with the increasing demands of energy density and weight reduction and cost reduction of the battery pack, the box body of the battery pack adopts a cover body made of a composite material to reduce the weight. The related art provides a box, and the box includes the box and covers the lid of locating on the box. The frame body is internally provided with a cross beam, a sleeve is arranged on the cross beam, and the cover body and the sleeve can be connected through bolts. The bolt and the cover body are sealed in a gluing mode, and a sealing ring is arranged at one end of the sleeve towards the cover body and is sealed with the cover body. The sleeve protrudes towards one end of the cover body along the radial direction of the sleeve to form a stepped sleeve structure so as to increase the outer diameter, thereby providing enough assembly space for the sealing ring. However, as the temperature of the case increases, the glue line may be released, resulting in the upper cover failing airtight. And the outer diameter of the stepped sleeve structure is larger, the occupied space is large, and the production material cost is improved.

Based on the above problems, the embodiment of the application provides a battery, which provides a stable space for a battery cell through arranging a frame body, improves the running stability of the battery cell, is convenient for the connection of a battery box body and other parts, and improves the stability of a connection structure. The cover body and the frame body are stably connected by the connecting component. In particular, the snap ring is arranged in the sealing assembly, surrounds the connecting assembly and is abutted with the cover body, so that impurities can be reduced to enter the box body through a gap between the connecting assembly and the cover body. And be provided with first sealing member between snap ring and lid, further strengthened sealing performance, improved battery operation's stability. Meanwhile, the first sealing piece is arranged on the clamping ring, so that the sealing ring arranged on the end part of the stepped sleeve structure is replaced, and the connecting assembly does not need to form a stepped structure, so that the whole volume of the connecting assembly is reduced, the material consumption is reduced, and the cost is reduced.

The battery of the present application will be described in detail.

The term "plurality" as used herein refers to two or more (including two).

In the embodiment of the application, the battery cell can be a secondary battery, and the secondary battery refers to a battery cell which can activate the active material in a charging mode to continue to use after the battery cell discharges.

The battery cells may include, but are not limited to, lithium ion battery cells, sodium lithium ion battery cells, lithium metal battery cells, sodium metal battery cells, lithium sulfur battery cells, magnesium ion battery cells, nickel hydrogen battery cells, nickel cadmium battery cells, lead storage battery cells, and the like.

As an example, the battery cell may be a cylindrical battery cell, a prismatic battery cell, or other shaped battery cell, including a square-case battery cell, a blade-shaped battery cell, a polygonal-prismatic battery, such as a hexagonal-prismatic battery, etc., and the present application is not particularly limited.

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.

In some embodiments, the battery may be a battery module, and when there are a plurality of battery cells, the plurality of battery cells are arranged and fixed to form a battery module. The plurality of battery cells are stacked in the thickness direction 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 the battery module being accommodated 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.

In some embodiments, the battery may be an energy storage device. The energy storage device comprises an energy storage container, an energy storage electric cabinet and the like.

The battery disclosed by the embodiment of the application can be used for an electric device using the battery as a power supply or various energy storage systems using the battery as an energy storage element. The power device may be, but is not limited to, a cell phone, tablet, notebook computer, electric toy, electric tool, battery car, electric car, ship, spacecraft, etc. Among them, the electric toy may include fixed or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric plane toys, and the like, and the spacecraft may include planes, rockets, space planes, and spacecraft, and the like.

For convenience of explanation, the following examples will be described taking an electric device as an example of a vehicle.

Fig. 1 is a schematic structural diagram of a vehicle according to some embodiments 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 3 and a motor 4, the controller 3 being arranged to control the battery 2 to power the motor 4, for example 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 a schematic structural diagram of a battery according to some embodiments of the present application, and fig. 3 is a schematic partial structural diagram of a battery according to some embodiments of the present application. As shown in fig. 2 and 3, the battery 2 includes a case 5 and a battery cell 7, and the battery cell 7 is accommodated in the case 5.

The case 5 is for accommodating the battery cell 7, and the case 5 may have various structures. In some embodiments, the case 5 may include a cover 6 and a frame 501, the cover 6 and the frame 501 being mutually covered, the cover 6 and the frame 501 together defining a receiving space 53 for receiving the battery cell 7. The frame 501 may have a hollow structure with one end opened, and the cover 6 has a plate-like structure, and the cover 6 is covered on the opening side of the frame 501 to form the case 5 having the accommodation space 53. The cover 6 and the frame 501 may be hollow, and the opening side of the cover 6 is covered on the opening side of the frame 501 to form the case 5 with the accommodating space 53. Of course, the cover 6 and the frame 501 may be of various shapes, such as a cylinder, a rectangular parallelepiped, or the like.

In order to improve the sealing property after the cover 6 is connected to the housing 501, a sealing material, such as a sealant, a seal ring, or the like, may be provided between the cover 6 and the housing 501.

Assuming that the cover 6 is covered on top of the frame 501, the cover 6 may also be referred to as an upper case cover, and the frame 501 may also be referred to as a lower case.

In the battery 2, the number of the battery cells 7 may be one or more. If there are multiple battery cells 7, the multiple battery cells 7 may be connected in series or parallel or a series-parallel connection, and the series-parallel connection refers to that the multiple battery cells 7 are connected in series or parallel. The plurality of battery cells 7 can be directly connected in series or in parallel or in series-parallel, and then the whole formed by the plurality of battery cells 7 is accommodated in the box body 5; of course, a plurality of battery cells 7 may be connected in series or parallel or series-parallel to form a battery module, and then connected in series or parallel or series-parallel to form a whole and be accommodated in the case 5.

The battery cell 7 may be, for example, the smallest unit constituting the battery 2.

Fig. 4 is an exploded view of a battery cell according to some embodiments of the present application.

As shown in fig. 4, in some embodiments, the battery cell 7 includes a case 40 and an electrode assembly 10 accommodated in the case 40.

The electrode assembly 10 includes a positive electrode and a negative electrode. During charge and discharge of the battery cell 7, active ions (e.g., lithium ions) are inserted and extracted back and forth between the positive electrode and the negative electrode. Optionally, the electrode assembly 10 further includes a separator disposed between the positive and negative electrodes, which may reduce the risk of shorting the positive and negative electrodes while allowing the passage of active ions.

The case 40 is used to encapsulate the electrode assembly 10, electrolyte, and the like. The shell 40 may be a steel shell, an aluminum shell, a plastic shell (e.g., polypropylene), a composite metal shell (e.g., a copper aluminum composite shell 40), or an aluminum plastic film.

In some embodiments, the housing 40 includes a shell 20 and an end cap 30, the shell 20 having an opening, the end cap 30 for covering the opening.

The case 20 is a member for engaging the end cap 30 to form an internal cavity of the battery cell 7, which may be used to accommodate the electrode assembly 10, electrolyte, and other components.

The housing 20 and the end cap 30 may be separate components. For example, an opening may be provided in the case 20, and the end cap 30 may be closed at the opening to form an internal cavity of the battery cell 7.

The end cap 30 is welded, glued, snapped or otherwise attached to the housing 20.

In some embodiments, the battery cell 7 further includes an electrolyte contained within the housing 40. The electrolyte serves to conduct ions between the positive and negative electrodes. The electrolyte may be liquid, gel or solid.

In some embodiments, the battery cell 7 includes an electrode terminal. The electrode terminals are electrically connected to the electrode assembly 10 for outputting or inputting electric power of the battery cells 7.

In some embodiments, the battery cell 7 comprises a pressure relief mechanism 24, the pressure relief mechanism 24 being adapted to rupture when the pressure inside the battery cell 7 exceeds a threshold value, to relieve the pressure inside the battery cell 7.

Fig. 5 is a schematic structural view of a frame provided in an embodiment of the present application, fig. 6 is a schematic structural view of a connecting assembly and a sealing assembly in an embodiment of the present application, and fig. 7 is a schematic sectional structural view of A-A in fig. 2.

Referring to fig. 5 to 7 in combination, the battery 2 further includes a connection assembly 502 and a sealing assembly 503. The frame body is provided with an assembly hole 504, and the frame body 501 defines an accommodation space 53 having an opening, the accommodation space 53 being for accommodating the battery cell 7. The cover 6 is provided with a connecting hole 505 corresponding to the fitting hole 504, and the cover 6 is provided with an opening. The connecting component 502 is disposed through the connecting hole 505 and the fitting hole 504 to connect the frame 501 and the cover 6. The sealing component 503 is arranged on one side of the cover body 6 facing the accommodating space 53, the sealing component 503 comprises a snap ring 508 and a first sealing element 512, the snap ring 508 is sleeved outside the connecting component 502 and is also abutted with the cover body 6, and the first sealing element 512 is arranged between the snap ring 508 and the cover body 6.

In the above technical solution, the sealing component 503 is provided with the snap ring 508, which surrounds the connection component 502 and abuts against the cover 6, so that the risk that impurities enter the box 5 through the gap between the connection component 502 and the cover 6 can be reduced. And the first sealing element 512 is arranged between the snap ring 508 and the cover body 6, so that the sealing performance is further enhanced, and the running stability of the battery 2 is improved. Meanwhile, the first sealing element 512 is arranged on the clamping ring 508 to replace a sealing ring arranged on the end part of the stepped sleeve structure, and the connecting assembly does not need to form a stepped structure, so that the whole volume of the connecting assembly 502 is reduced, the material consumption is reduced, and the cost is reduced.

In some alternative embodiments, the frame 501 includes a plurality of beams that are interconnected and define a receiving space 53 for receiving the battery cells 7. The connection assembly 502 may be a bolt, rivet, or the like connection.

The snap ring 508 has a ring structure, and the snap ring 508 can be made of a metal material to improve the connection strength. Alternatively, the snap ring 508 may be made of an insulating material, or the surface of the snap ring 508 may be provided with an insulating layer to improve insulating properties. The first sealing member 512 may be made of a material having a certain elasticity and heat resistance, such as rubber, silica gel, etc.

In some alternative embodiments, the snap ring 508 may be fabricated using a high temperature resistant material, which may reduce the risk of high temperature debonding of the bond line between the connection assembly 502 and the cover 6 resulting in seal failure and thermal runaway.

In some embodiments of the present application, the connection assembly 502 includes a connection sleeve 506 and a fastener 507, the connection sleeve 506 is disposed in the assembly hole 504, and the fastener 507 is disposed through the connection hole 505 and within the connection sleeve 506 to connect the cover 6 and the connection sleeve 506. Illustratively, the fastener 507 includes a first bolt 507A. The first bolt 507A is screwed to the coupling sleeve 506 after passing through the cover 6. During assembly, the connecting sleeve 506 can be firstly mounted to the frame body 501, then the cover body 6 is mounted, and finally the fastening piece 507 is mounted, so that the assembly efficiency is high.

In the above structure, the connecting sleeve 506 is disposed in the assembly hole 504 and fixedly connected with the frame 501, so as to provide a stable support and guide for the fastening member 507. The connecting sleeve 506 makes the connection between the cover 6 and the frame 501 more stable and can bear larger external force. The connecting sleeve 506 facilitates and facilitates assembly of the fastener 507, reducing assembly time and error rate. The primary function of the first sealing member 512 is to prevent impurities such as water and dust from entering the interior of the case 5 through the connection gap between the connection sleeve 506 and the frame 501, thereby ensuring the cleanliness and safety of the operating environment of the battery 2. The use of the first seal 512 in combination with the coupling sleeve 506 and the fastener 507 further improves the overall sealing performance.

In some alternative embodiments, the connection assembly 502 further includes a second bolt 507B, the connection sleeve 506 has two internal thread grooves, the two internal thread grooves being located at two ends of the connection sleeve 506, respectively, the first bolt 507A and the second bolt 507B being located in the two internal thread grooves, respectively. The frame 501 further comprises a bottom plate, the bottom plate is arranged on one side, deviating from the cover 6, of the frame 501, the bottom plate is arranged opposite to the cover 6, and the battery unit 7 is arranged between the bottom plate and the cover 6. The bottom plate is provided with a through hole, and the second bolt 507B passes through the through hole and the frame 501 and is in threaded connection with the connecting sleeve 506, so as to play a role in connecting the bottom plate and the frame 501. The first bolt 507A connects the cover 6 and the housing 501, and the second bolt 507B connects the top plate and the housing 501. In the above structure, the frame 501 is connected with the bottom plate and the cover 6 by using one connecting sleeve 506, so that the assembly efficiency and the stability of the structure of the box 5 are improved.

As shown in fig. 8, in some embodiments of the application, the snap ring 508 includes a body portion 510 and a mounting portion 511. The main body 510 is sleeved on the outer periphery of the connecting sleeve 506, the mounting portion 511 extends outwards along the surface of the main body 510 away from the connecting sleeve 506, the mounting portion 511 is abutted with the cover 6, and at least part of the first sealing member 512 is arranged between the mounting portion 511 and the cover 6.

In the above configuration, the main body 510 is provided to stably connect the retainer ring 508 and the connection sleeve 506, and the support strength and the sealing property are improved. The body portion 510 is sized and shaped to mate with the coupling sleeve 506 to achieve a tight fit with the coupling sleeve 506, reducing play and looseness.

The mounting portion 511 is formed to extend outwardly along a side of the main body portion 510 facing away from the connection sleeve 506, increasing the contact area with the cover 6. The increased contact area not only provides better stability but also improves sealing performance. The mounting portion 511 abuts the cover 6 to form an effective sealing interface, reducing the likelihood of seal failure.

The first sealing member 512 is provided between the mounting portion 511 and the cover 6, enhancing the sealing effect. The first seal 512 may be made of a material having good elasticity and corrosion resistance, such as silicone rubber or rubber, to ensure that the sealing performance is maintained over a long period of use. The first sealing member 512 is disposed between the cover 6 and the mounting portion 511, and when pressure or temperature changes, the first sealing member 512 can maintain its shape and sealing property, thereby improving the sealing stability of the first sealing member 512. In some embodiments of the application, the seal assembly 503 further includes a second seal 513, the second seal 513 being disposed between the snap ring 508 and the connection assembly 502.

The second seal 513 may be an annular structure that surrounds the outer circumference of the connection sleeve 506. The second sealing member 513 may be made of a material having good elasticity and corrosion resistance, such as silicone rubber or rubber, etc., to ensure that the sealing performance is maintained over a long period of use.

In the above-described structure, the sealing performance between the cover 6 and the mounting portion 511 is improved by providing the first sealing member 512, the sealing performance between the main body 510 and the connection sleeve 506 is improved by providing the second sealing member 513, and the second sealing member 513 and the first sealing member 512 cooperate with each other, so that the sealing performance of the case 5 can be improved, and the risk of impurities, moisture, or the like entering the case can be effectively reduced.

In some embodiments, the battery 2 further comprises a cover 6, the cover 6 being adapted to exchange heat with the battery cells 7. The cover 6 is generally provided with a heat exchange flow channel for the flow of a heat exchange medium. The heat exchange medium flows to take away the heat of the battery monomer 7, and the running temperature of the battery monomer 7 is controlled in a reasonable range, so that the running stability of the battery monomer 7 is ensured.

As shown in fig. 8 and 9, in some embodiments of the present application, the snap ring 508 is recessed toward a side surface of the cover 6 to form a first annular groove 514, and at least a portion of the first seal 512 is received in the first annular groove 514.

Alternatively, the first annular groove is provided in the mounting portion 511, i.e., the surface of the mounting portion 511 facing the cover 6 is concave to form the first annular groove 514. With the above structure, the space of the mounting portion 511 is effectively utilized, and the convenience of mounting the first seal 512 and the stability of the mounting position are improved.

With the above structure, the first annular groove 514 provides a well-defined positioning and fixing space for the first sealing member 512, and the first sealing member 512 can be accurately placed at a predetermined position without displacement during assembly.

The snap ring 508 can provide additional support and stability through the first annular groove 514, for example, when the first seal 512 is subjected to external pressure or vibration, reducing the risk of deformation or damage to the first seal 512. This helps to maintain the stability and tightness of the first seal 512, reducing the risk of reduced sealing performance due to a change in the position of the first seal 512. Meanwhile, the design of the first annular groove 514 improves the convenience of assembling the first sealing element 512, simplifies the assembling process, reduces the assembling difficulty and improves the overall assembling efficiency.

In some embodiments of the present application, the body portion 510 protrudes toward one side of the connection sleeve 506 to form a first protrusion 516, and the surface of the connection sleeve 506 is recessed into a first recess 515, and the first recess 515 mates with the first protrusion 516 and snap-connects the connection sleeve 506 to the body portion 510.

In some alternative embodiments, the second sealing member 513 is disposed between the first concave portion 515 and the first convex portion 516, so as to limit the second sealing member 513 and improve the sealing effect. Optionally, the first protruding portion 516 is an elastic structure, and when assembled, the first protruding portion 516 contracts, and returns to its shape after entering the first recessed portion 515 to achieve a snap fit with the connection sleeve 506.

The above-described structure, the fitting design of the first protrusion 516 and the first recess 515 simplifies the assembly process, reduces the time and labor required for assembly, and improves the assembly efficiency. The first protrusion 516 and the first recess 515 not only improve connection stability, but also play a role in guiding and positioning. During assembly, the first protrusion 516 may guide the main body 510 to accurately interface with the connection sleeve 506, reducing assembly difficulty and improving assembly accuracy. The clamping ring 508 is abutted between the cover body 6 and the frame body 501, when the fastening piece 507 is connected with the connecting sleeve 506, the clamping ring 508 is abutted, the clamping ring 508 supports the first sealing element 512 and the cover body 6, and the sealing performance of the first sealing element 512 and the connection stability between the connecting assembly 502 and the frame body 501 and the cover body 6 are improved.

In some embodiments of the present application, the connection sleeve 506 is of unitary construction with the snap ring 508. By integrally formed, it is meant that the multiple parts are combined together by a single machining or casting process to form a complete structure. In this way, assembly efficiency and connection stability of the connection sleeve 506 and the snap ring 508 are improved.

As shown in fig. 6-7, in some alternative embodiments, the connecting sleeve 506 and the snap ring 508 are both fabricated from an insulating material. The battery 2 further comprises a bus bar 8, the bus bar 8 being used to make an electrical connection between the two battery cells 7. When the connecting component 502 is arranged in the middle of the frame body 501, the bus bar piece 8 is close to the connecting sleeve 506, and the bus bar piece 8 and surrounding metal structural members can be short-circuited by splash substances generated when the battery unit 7 is in thermal runaway, so that the problem of ignition occurs, and therefore the connecting sleeve 506 and the clamping ring 508 are arranged to be insulating materials, the insulating performance is improved, and the running stability of the battery 2 is further improved.

As shown in fig. 5, in some embodiments of the present application, the frame body 501 includes a surrounding frame 51 and a beam 52, the surrounding frame 51 forms an accommodating space 53 therein, the beam 52 is disposed in the surrounding frame 51, and the assembly hole 504 is disposed in the beam 52. In the above-described configuration, the connection between the cover 6 and the frame 501 is provided inside the enclosure frame 51, and the connection stability between the cover 6 and the frame 501 is improved.

In one embodiment, the battery 2 includes a battery cell 7, a frame 501, a cover 6, a connection assembly 502, and a seal assembly 503. The frame body 501 includes a surrounding frame 51, a cross member 52, and a bottom plate disposed on one side of the surrounding frame 51, and defines an accommodating space 53 with an opening with the surrounding frame 51, the accommodating space 53 being for accommodating the battery cell 7. The cross member 52 is provided in the surrounding frame 51. The cross member 52 has an assembly hole 504, the cover 6 is provided with an opening, and the cover 6 has a connection hole 505 corresponding to the assembly hole 504.

The connection assembly 502 includes a connection sleeve 506 and a fastener 507, the fastener 507 including a first bolt 507A. The first bolt 507A is threaded through the cover and then coupled to the coupling sleeve 506. The first bolts 507A are inserted through the connection holes 505 and the fitting holes 504 to connect the frame 501 and the cover 6. The sealing component 503 is arranged on one side of the cover body 6 facing the accommodating space 53, the sealing component 503 comprises a clamping ring 508 and a first sealing element 512, the clamping ring 508 is sleeved outside the connecting component 502, the clamping ring 508 is also abutted with the cover body 6, and the first sealing element 512 is arranged between the clamping ring 508 and the cover body 6. The connecting sleeve 506 is disposed in the assembly hole 504, the fastener 507 is disposed through the connecting hole 505 and is disposed in the connecting sleeve 506 to connect the cover 6 and the connecting sleeve 506, and the first sealing member 512 is disposed outside the connecting sleeve 506. Clasp 508 includes a body portion 510 and a mounting portion 511. The main body 510 is sleeved on the outer periphery of the connecting sleeve 506, the mounting portion 511 extends outwards along the surface of the main body 510 away from the connecting sleeve 506, the mounting portion 511 is abutted with the cover 6, and at least part of the first sealing member 512 is arranged between the mounting portion 511 and the cover 6. The seal assembly 503 also includes a second seal 513, the second seal 513 being disposed between the snap ring 508 and the connection assembly 502. Snap ring 508 is recessed toward one side surface of cover 6 to form a first annular groove 514, and at least a portion of first seal 512 is received in first annular groove 514. The snap ring 508 protrudes toward one side of the connection sleeve 506 to form a first protrusion 516, and the surface of the connection sleeve 506 is concave inward to form a first recess 515, and the first protrusion 516 is inserted into the first recess 515. The mounting holes 504 are provided in the cross member 52.

The embodiment of the application provides an electricity utilization device, which includes the battery 2in the above embodiment, where the battery 2 is used for providing electric energy, and the electricity utilization device also has the technical effects of the battery 2in the above embodiment, which is not described herein.

The embodiment of the application also provides a box 5, which comprises a frame 501, a cover 6, a connecting component 502 and a sealing component 503. The frame body 501 is provided with an assembly hole 504, and the frame body 501 defines an accommodation space 53 having an opening, the accommodation space 53 being for accommodating the battery cell 7. The cover 6 is provided with a connecting hole 505 corresponding to the fitting hole 504, and the cover 6 is provided with an opening. The connecting component 502 is disposed through the connecting hole 505 and the fitting hole 504 to connect the frame 501 and the cover 6. The sealing component 503 is arranged on one side of the cover body 6 facing the accommodating space 53, the sealing component 503 comprises a clamping ring 508 and a first sealing element 512, the clamping ring 508 is sleeved outside the connecting component 502, the clamping ring 508 is also abutted with the cover body 6, and the first sealing element 512 is arranged between the clamping ring 508 and the cover body 6.

Through setting up framework 501 and providing stable space for battery monomer 7, improve the stability of battery monomer 7 operation to be convenient for battery box 5 and other parts are connected, improve connection structure's stability. A connection unit 502 is provided to stably connect the cover 6 and the housing 501. In particular, the snap ring 508 is disposed in the sealing component 503, surrounds the connection component 502 and abuts against the cover body 6, so that impurities can be reduced from entering the battery 2 through a gap between the connection component 502 and the cover body 6, and the first sealing member 512 is further disposed, so that the sealing performance is further enhanced, and the running stability of the battery 2 is improved. Meanwhile, the first sealing element 512 is arranged on the clamping ring 508 to replace the sealing element arranged on the connecting assembly 502, so that the whole volume of the connecting assembly 502 is reduced, the material consumption is reduced, and the manufacturing cost is reduced.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (11)

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

A battery cell (7);

A frame body (501) provided with an assembly hole (504), wherein the frame body (501) defines an accommodating space (53) with an opening, and the accommodating space (53) is used for accommodating the battery cells (7);

The cover body (6) is covered on the opening, and the cover body (6) is provided with a connecting hole (505) corresponding to the assembly hole (504);

The connecting assembly (502) is penetrated through the connecting hole (505) and the assembling hole (504) to connect the frame body (501) and the cover body (6); and

Seal assembly (503), locate lid (6) orientation one side of accommodation space (53), seal assembly (503) include snap ring (508) and first sealing member (512), snap ring (508) cover is located outside coupling assembling (502), and with lid (6) butt, first sealing member (512) are located snap ring (508) with between lid (6).

2. The battery (2) according to claim 1, wherein the connection assembly (502) comprises a connection sleeve (506) and a fastener (507), the connection sleeve (506) being provided in the fitting hole (504), the fastener (507) being provided through the connection hole (505) and within the connection sleeve (506) to connect the cover (6) and the connection sleeve (506).

3. The battery (2) of claim 2, wherein the snap ring (508) comprises:

A main body (510) which is fitted around the outer periphery of the connection sleeve (506);

The mounting part (511) extends outwards along the surface of the main body part (510) deviating from the connecting sleeve (506), the mounting part (511) is abutted with the cover body (6), and the first sealing element (512) is arranged between the mounting part (511) and the cover body (6).

4. The battery (2) according to claim 2, wherein the snap ring (508) protrudes toward one side of the connection sleeve (506) to form a first protrusion (516), the surface of the connection sleeve (506) is concave inward to form a first recess (515), and the first protrusion (516) is inserted into the first recess (515).

5. The battery (2) of claim 1, wherein the seal assembly (503) further comprises a second seal (513), the second seal (513) being disposed between the snap ring (508) and the connection assembly (502).

6. The battery (2) of claim 1, wherein the snap ring (508) is recessed toward a side surface of the cover (6) to form a first annular groove (514), at least a portion of the first seal (512) being received in the first annular groove (514).

7. The battery (2) according to claim 1, wherein the cover (6) is a heat exchange plate, a heat exchange flow channel is arranged in the heat exchange plate, and the heat exchange plate is used for exchanging heat with the battery cell (7).

8. The battery (2) of claim 2, wherein the connection sleeve (506) is of unitary construction with the snap ring (508).

9. The battery (2) according to any one of claims 1 to 8, wherein the frame body (501) includes a surrounding frame (51) and a cross member (52), the housing space (53) is formed inside the surrounding frame (51), the cross member (52) is provided inside the surrounding frame (51), and the fitting hole (504) is provided in the cross member (52).

10. An electric power consumption device, characterized in that it comprises a battery (2) according to any one of claims 1-9, said battery (2) being adapted to provide electric power.

11. A tank (5), characterized by comprising:

a frame body (501) provided with an assembly hole (504), wherein the frame body (501) defines an accommodating space (53) with an opening, and the accommodating space (53) is used for accommodating the battery cells (7);

The cover body (6) is covered on the opening, and the cover body (6) is provided with a connecting hole (505) corresponding to the assembly hole (504);

The connecting assembly (502) is penetrated through the connecting hole (505) and the assembling hole (504) to connect the frame body (501) and the cover body (6); and

Seal assembly (503), locate lid (6) orientation one side of accommodation space (53), seal assembly (503) include snap ring (508) and first sealing member (512), snap ring (508) cover are located outside coupling assembling (502), snap ring (508) still with lid (6) butt, first sealing member (512) are located snap ring (508) with between lid (6).