CN221239724U

CN221239724U - Box assembly, battery and power utilization device

Info

Publication number: CN221239724U
Application number: CN202420777126.9U
Authority: CN
Inventors: 阮生甡
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2024-04-16
Filing date: 2024-04-16
Publication date: 2024-06-28
Anticipated expiration: 2034-04-16

Abstract

The application relates to the technical field of batteries, and provides a box assembly, a battery and an electric device. Wherein, the box subassembly includes: the box body frame is provided with a mounting groove at one side; the sealing body is arranged in the mounting groove; the connecting plate is arranged on one side of the box frame, which is provided with the mounting groove, and one side of the heat exchange plate, which faces the box frame, is provided with a pressing part, and the pressing part is positioned in the mounting groove and is in sealing connection with the sealing body. By the technical scheme, the sealing body can be sealed after being compressed, so that the sealing stability of the box body can be improved, and the risk of easy water inflow during high-speed water-through of the box body is reduced.

Description

Box assembly, battery and power utilization device

Technical Field

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

Background

Currently, with the rapid development of new energy automobiles, batteries are increasingly coming into the public view.

The use environment of the battery is particularly important, and the battery has higher waterproof sealing requirements on the use of the battery in rainy, snowy, frozen and other weather. However, the frame structure of the existing battery is difficult to realize effective sealing, and the frame sealing failure of the battery usually occurs after long-term use, so that the case of the battery is easy to enter water to cause the occurrence of short circuit and fire of the battery.

Disclosure of utility model

In view of the above problems, an object of the present application is to provide a case assembly, a battery and an electric device, which are used for improving the tightness of the frame of the case and reducing the risk of short-circuit fire of the battery caused by water inflow of the case. The aim is achieved by the following technical scheme:

In a first aspect, the present application provides a tank assembly comprising: the box body frame is provided with a mounting groove at one side; the sealing body is arranged in the mounting groove; the connecting plate is arranged on one side of the box body frame, which is provided with the mounting groove, and one side of the connecting plate, which faces the box body frame, is provided with a pressing part, and the pressing part is positioned in the mounting groove and is in sealing connection with the sealing body.

According to the box assembly provided by the first aspect of the application, the mounting groove is formed in one side of the box frame, the sealing body is arranged in the mounting groove, the connecting plate is arranged on one side of the box frame, which is provided with the mounting groove, the pressing part of the connecting plate is pressed into the mounting groove, and the sealing body can be extruded or the junction of the box frame and the connecting plate can be sealed in a matched manner with the sealing body when the pressing part is positioned in the mounting groove, so that the sealing performance of the connecting position of the box frame can be improved, meanwhile, the pressing part can limit the sealing body, the water flow impact resistance capability of the sealing body is improved, and the risk of causing the battery to short-circuit and fire after the sealing body is water-inlet due to high-speed water-involved can be reduced.

In addition, the box body assembly provided by the application can also have the following additional technical characteristics:

In some embodiments of the present application, the pressing portion is a boss formed by locally protruding into the mounting groove from the connecting plate, and a cavity is defined on a side of the boss facing away from the mounting groove.

That is, the boss integrated into one piece in the connecting plate, the boss that the protruding one side of connecting plate orientation mounting groove formed can be located the mounting groove partially, also can be located the mounting groove completely, because the boss can seal the junction of box frame and connecting plate with the seal in the mounting groove with cooperation, structure and principle are all comparatively simple, easily realize.

In some embodiments of the present application, the pressing portion includes a rib disposed on a side of the connection plate facing the frame of the case, and the rib is a solid body.

The convex ribs are independently arranged on one side of the connecting plate facing the mounting groove, the shape of the connecting plate does not need to be changed, the convex ribs can be welded with the connecting plate or adhered to the connecting plate or integrally formed with the connecting plate, and the convex ribs and the sealing body are matched to seal the space in the mounting groove, so that the sealing performance of the connecting part of the frame of the box body and the connecting plate can be improved.

In some embodiments of the present application, the connecting plate includes a first plate body and a second plate body connected to the first plate body, the first plate body is located between the frame of the case and the second plate body, and the first plate body is provided with the boss.

The connecting plate is the bilayer board body, through protruding in order to form the boss that is used for holding in the mounting groove with the direction of box frame with first board body part, then need not to change the shape of second board body for the shape of second board body is more regular, thereby helps improving holistic aesthetic property of product.

In some embodiments of the present application, a heat exchange flow channel is formed between the first plate body and the second plate body, and the heat exchange flow channel is used for circulating a heat exchange medium.

That is, the connection plate can be a heat exchange plate formed by adopting double-layer panels, and a heat exchange flow channel for heat exchange medium to flow is arranged in the heat exchange plate, so that when the battery monomer is arranged in the box body, the connection plate is used for exchanging heat of the battery monomer in the box body, thereby improving the heat exchange efficiency of the battery and the service performance of the battery.

In some embodiments of the application, heat exchange flow channels are defined between the bosses and the second plate body.

Namely, the cavity defined between the boss and the second plate body can also be used as a heat exchange flow channel, so that the area of a heat exchange area for carrying out heat exchange on the battery monomer can be increased, and the heat exchange efficiency of the battery monomer is improved.

In some embodiments of the application, the connection plate comprises a box floor.

The connecting plate can also be a box bottom plate, and the box bottom plate links to each other with the box frame, plays the effect of protecting the box bottom plate of battery to can be with the box frame between inject and be used for holding the free accommodation space of battery.

In some embodiments of the present application, the sealing body includes a gasket embedded in the mounting groove and between the pressing portion, the pressing portion abutting against the gasket;

Or the sealing body comprises a sealing adhesive layer coated between the mounting groove and the pressing part, and the pressing part is adhered to the sealing adhesive layer.

The seal may be a gasket or a sealant layer.

When the sealing body is the sealing gasket, the sealing gasket can be embedded in the mounting groove, then the pressing part on the connecting plate is utilized to be abutted against the sealing gasket so as to press the sealing gasket, and the sealing gasket is compressed and deformed to seal the space in the mounting groove, so that the sealing stability of the sealing gasket in the mounting groove can be improved, and the risk of easy water inlet when the sealing gasket is subjected to large shearing force is reduced.

When the sealing body is the sealing glue layer, the sealing glue layer can be profiling glue pressing, and also can be a glue layer coated in the mounting groove, and the pressing part on the connecting plate is used for being in butt joint with the profiling glue pressing so as to press the sealing glue layer, so that the sealing gasket compresses the mounting groove, or the pressing part directly stretches into the sealing glue layer, thereby being matched with the sealing glue layer to seal the space in the mounting groove, improving the sealing stability and reducing the risk of easy water inflow when the sealing gasket is subjected to larger shearing force.

In some embodiments of the present application, the connecting plate is provided with a first connecting hole, the box frame is provided with a second connecting hole communicated with the first connecting hole, and the first connecting hole and the second connecting hole are used for passing a fastener to fixedly connect the connecting plate and the box frame.

Through set up first connecting hole on the connecting plate to set up in the second connecting hole that first connecting hole is linked together at the box frame, utilize fastener such as bolt to pass first connecting hole and second connecting hole in proper order, alright with connecting plate and box frame fixed connection, help improving the reliability that connecting plate and box frame are connected, and help improving the stability of compressing tightly portion and sealing body sealing fit.

In some embodiments of the present application, the box frame includes a plurality of sub frames, and a plurality of sub frames are connected end to end and define a receiving cavity between the sub frames and the connecting plate, for receiving the battery cell; each sub-frame is provided with a mounting groove, adjacent mounting grooves are communicated with each other, sealing bodies are arranged in the mounting grooves, and the pressing parts of the connecting plates are in sealing connection with the sealing bodies in the mounting grooves.

That is, a plurality of sub-frames of the box frame are connected end to end for can communicate each other between the mounting groove of adjacent sub-frame, the shape looks adaptation of the clamping part on the connecting plate and the mounting groove of a plurality of sub-frames, and impress to every mounting groove in, thereby can seal with the sealing body sealing connection in every mounting groove, with the space in the mounting groove to every sub-frame, thereby improve the holistic sealing performance of box frame, further reduce the box and lead to the risk of intaking because of sealed inefficacy.

In a second aspect, the application provides a battery, comprising a battery unit and a box assembly according to any one of the embodiments of the first aspect, wherein the battery unit is accommodated in an accommodating cavity of the box assembly.

The battery provided according to the second aspect of the present application, because of including the case assembly according to the embodiment of the first aspect, also has the technical effects of any of the above embodiments, and will not be described herein again.

In a third aspect, the present application provides an electrical device comprising a battery according to an embodiment of the third aspect, the battery being adapted to power the electrical device.

The power utilization device according to the third aspect of the present application, including the battery according to the embodiment of the third aspect, also has the technical effects of any of the foregoing embodiments, and will not be described in detail herein.

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

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

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

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

FIG. 3 is a schematic view of a box assembly according to an embodiment of the present application;

FIG. 4 is a schematic cross-sectional view of the structure of FIG. 3 in the direction A-A;

Fig. 5 is a schematic partial cross-sectional view of a tank assembly according to another embodiment of the present application.

The reference numerals are as follows:

1000. A vehicle;

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

10. a case; 11. an upper cover; 12. a housing assembly;

121. A frame of the box body; 1211. a mounting groove; 122. a connecting plate; 1221. a boss; 1222. a heat exchange flow passage; 1223. a first plate body; 1224. a second plate body; 1225. convex ribs; 123. a sealing body; 124. a fastener.

Detailed Description

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

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

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

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

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

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

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

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

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

The use environment of the battery is particularly important, and the battery is required to be used in rainy days, snowy days, frozen days and the like. However, the box frame structure of the conventional battery is difficult to realize effective sealing, the mounting groove is usually formed in the bottom side of the box frame, the sealing gasket is arranged in the mounting groove, the heat exchange plate is used for sealing the notch of the mounting groove, and the sealing joint of the heat exchange plate and the sealing gasket is flat or non-joint, so that the sealing performance is easily reduced due to insufficient compression quantity of the sealing gasket, the box of the battery is subjected to shearing force during high-speed wading, and the risk of sealing failure is caused, so that the box of the battery is easy to enter water, and the condition that the battery is short-circuited and fires is caused.

In order to solve the problem that the conventional box frame structure is easy to cause sealing failure, the box assembly is designed, the mounting groove is formed in one side of the box frame, the sealing body is arranged in the mounting groove, then the connecting plate is arranged on one side, provided with the mounting groove, of the box frame, the pressing part which is used for being pressed into the mounting groove is arranged on one side, facing the mounting groove, of the connecting plate, and when the pressing part is pressed into the mounting groove, the pressing part can be abutted against or in sealing connection with the sealing body in the mounting groove, so that the box frame is sealed, the sealing performance of the box frame is improved, and the risk of water inflow of the box is reduced.

The box body assembly disclosed by the embodiment of the application is used for the box body of the battery, so that the tightness of the box body of the battery is improved, and the risk of water inflow during high-speed water-involved battery can be further reduced.

The embodiment of the application provides an electric device using a battery as a power supply, wherein the electric device can be, but is not limited to, a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft and the like. 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 description, the following embodiment will take an electric device according to an embodiment of the present application as an example of the vehicle 1000.

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

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

Referring to fig. 2, fig. 2 is an exploded view of a battery 100 according to some embodiments of the present application. The battery 100 includes a case 10 and a battery cell 20, and the battery cell 20 is accommodated in the case 10. The case 10 is used to provide an accommodating space for the battery cell 20, and the case 10 may have various structures. In some embodiments, the case 10 may include an upper cover 11 and a case assembly 12, the upper cover 11 and the case assembly 12 being overlapped with each other, the upper cover 11 and the case assembly 12 together defining a receiving space for receiving the battery cell 20. The case assembly 12 may have a hollow structure with one end opened, the upper cover 11 may have a plate-shaped structure, and the upper cover 11 covers the opening side of the case assembly 12, so that the upper cover 11 and the case assembly 12 together define an accommodating space; the upper cover 11 and the case assembly 12 may be hollow structures with one side open, and the open side of the upper cover 11 is closed to the open side of the case assembly 12. Of course, the case 10 formed by the upper cover 11 and the case assembly 12 may be of various shapes, such as a cylinder, a rectangular parallelepiped, etc.

Referring to fig. 3 and fig. 4, fig. 3 is a schematic structural diagram of a view angle of a box assembly according to an embodiment of the application; fig. 4 is a schematic cross-sectional view of the structure of fig. 3 in the direction A-A. The box assembly provided by the embodiment of the application comprises a box frame 121, a sealing body 123 and a connecting plate 122. Wherein, one side of the case frame 121 is provided with a mounting groove 1211. The sealing body 123 is provided in the installation groove 1211. The connecting plate is arranged on one side of the box frame 121 with the mounting groove 1211, and the side of the connecting plate 122 facing the box frame 121 is provided with a pressing part, and the pressing part is positioned in the mounting groove 1211 and is in sealing connection with the sealing body 123.

The box frame 121 is a frame structure surrounding the periphery of the battery cell, and plays a role in protecting the safety of the periphery of the battery cell.

The sealing body 123 is used for sealing the connection position of the box frame 121 and the connecting plate 122 by matching with the pressing part on the connecting plate 122.

The connecting plate 122 is a protective piece arranged at the bottom of the box frame 121, and plays a role in protecting the bottom of the battery cell. In some embodiments, the connection plate 122 may also serve as a heat exchange plate for heat exchanging the battery cells. Of course, the connection plate 122 may be a bottom guard plate, or a plate body formed by combining the heat exchange plate and the bottom guard plate.

Illustratively, the mounting groove 1211 is a U-shaped groove provided on a side of the case frame 121 facing the connection plate 122 for mounting the sealing body 123.

The sealing connection of the pressing portion with the sealing body 123 means that the pressing portion contacts with the sealing body 123 or compresses the sealing body 123 when pressed into the installation groove 1211, thereby achieving a sealing effect.

In this embodiment, the mounting groove 1211 is formed on one side of the frame 121, the sealing body 123 is formed in the mounting groove 1211, the connecting plate is disposed on one side of the frame 121 where the mounting groove 1211 is formed, and the pressing portion of the connecting plate is pressed into the mounting groove 1211, so that the sealing body 123 can be pressed or the junction between the frame 121 and the connecting plate can be sealed in cooperation with the sealing body 123 when the pressing portion is located in the mounting groove 1211, so that the tightness of the connection position of the frame 121 can be improved, meanwhile, the pressing portion can limit the sealing body 123, the water flow impact resistance capability of the sealing body 123 is improved, and the risk of causing a battery to short-circuit and fire after the sealing body is water-inlet due to high-speed wading can be reduced.

Referring to fig. 4, according to some embodiments of the present application, the pressing portion is a boss 1221 formed by locally protruding into the mounting groove 1211 from the connection plate, and a cavity is defined on a side of the boss 1221 facing away from the mounting groove 1211.

The boss 1221 is an arc surface formed by partially protruding the connection plate 122 toward the direction of the installation groove 1211.

In this embodiment, the boss 1221 is integrally formed on the connecting plate, and the boss 1221 formed by protruding one side of the connecting plate towards the mounting groove 1211 may be partially located in the mounting groove 1211 or may be completely located in the mounting groove 1211, and since the boss 1221 can be in sealing connection with the sealing body 123 in the mounting groove 1211 in a matching manner, the connection between the box frame 121 and the connecting plate can be sealed, and the structure and principle are simple and easy to implement.

Referring to fig. 5, fig. 5 is a schematic partial cross-sectional view of a box assembly according to another embodiment of the application. According to another embodiment of the present application, the pressing portion includes a rib 1225 disposed on a side of the connecting plate 122 facing the frame 121 of the case, and the rib 1225 is a solid body.

The convex rib is a solid protruding from the plate surface of one side of the connecting plate facing the frame of the box body. The ribs 1225 may be welded or bonded to the connection plate 122, or integrally formed with the connection plate 122.

In this embodiment, the ribs 1225 are separately disposed on the side of the connection plate 122 facing the installation groove 1211, the shape of the connection plate is not required to be changed, and the space in the installation groove 1211 is sealed by the ribs 1225 in cooperation with the sealing body 123, so that the sealing performance of the connection part of the box frame 121 and the connection plate can be improved.

Referring to fig. 4, according to some embodiments of the present application, the connecting plate includes a first plate 1223 and a second plate 1224 connected to the first plate 1223, the first plate 1223 is located between the frame 121 and the second plate 1224, and the first plate 1223 is provided with a boss 1221.

In this embodiment, the first board 1223 and the second board 1224 are stacked and connected, and by locally protruding the first board 1223 toward the direction of the frame 121 of the box to form the boss 1221 for sealing connection with the sealing body 123 in the mounting groove, the shape of the second board 1224 is not required to be changed, so that the shape of the second board 1224 is regular, and the second board 1224 is located at one side of the first board 1223 away from the frame 121 of the box, thereby improving the overall aesthetic property of the product.

In some embodiments of the present application, a heat exchange flow channel 1222 is formed between the first plate 1223 and the second plate 1224, and the heat exchange flow channel 1222 is used for circulating a heat exchange medium.

The heat exchange flow channel is a hollow cavity enclosed between the first plate 1223 and the second plate 1224. Wherein, the first plate 1223 and the second plate 1224 may have a reinforcing rib disposed therebetween, so that a plurality of heat exchange channels 1222 are formed between the first plate 1223 and the second plate 1224, and the plurality of heat exchange channels 1222 may be mutually communicated.

The heat exchange medium can be water, air or cooling liquid and other mediums capable of performing heat exchange.

In this embodiment, the connection plate 122 may be a heat exchange plate formed by a double-layer panel, and by providing the heat exchange flow channel 1222 between the first plate 1223 and the second plate 1224, when the heat exchange medium flows through the heat exchange flow channel 1222, the heat exchange medium can exchange heat with the battery cells 20 in the box assembly 12, so as to improve the heat exchange efficiency of the battery.

It will be appreciated that when the connection plate 122 is a heat exchange plate, the heat exchange plate also has a media inlet and a media outlet in communication with the heat exchange channels 1222.

According to some embodiments of the application, the boss 1221 and the second plate 1224 define a heat exchange flow passage 1222 therebetween.

In the present embodiment, the cavity defined between the boss 1221 and the second plate 1224 may also be used as the heat exchanging channel 1222, so that the area of the heat exchanging area for exchanging heat with the battery cell 20 may be increased, and thus the heat exchanging efficiency with the battery cell 20 may be improved.

According to some embodiments of the application, the connection plate 122 comprises a box floor.

The bottom plate of the box body can be a single-layer protection plate arranged at the bottom of the frame of the box body, and can also be formed by overlapping multiple layers of protection plates.

In this embodiment, the bottom plate of the case is connected to the frame 121 of the case, which protects the bottom plate of the case of the battery, and a receiving space for receiving the battery is defined between the bottom plate of the case and the frame 121 of the case.

According to some embodiments of the present application, the sealing body 123 includes a gasket embedded in the installation groove 1211, and the pressing portion abuts against the gasket.

Or the sealing body 123 includes a sealing glue layer coated in the mounting groove 1211, and the pressing part is adhered to the sealing glue layer.

The sealing gasket can be a flexible piece which can be compressed, such as a rubber gasket or a silica gel gasket. The sealant layer is a glue layer with adhesive property.

In this embodiment, when the sealing body 123 is a sealing gasket, the sealing gasket can be embedded in the mounting groove 1211, and then the pressing portion on the connecting plate is used to abut against the sealing gasket to press the sealing gasket, so that the sealing gasket is compressively deformed to seal the space in the mounting groove 1211, thereby improving the sealing stability of the sealing gasket in the mounting groove 1211 and reducing the risk of easy water inflow when the sealing gasket is subjected to a large shearing force.

When the sealing body 123 is a sealing glue layer, the sealing glue layer can be profiling glue pressing, or can be a glue layer coated in the mounting groove 1211, and the pressing part on the connecting plate is used for being abutted against the profiling glue pressing so as to press the sealing glue layer, so that the sealing gasket compresses the mounting groove 1211, or the pressing part directly stretches into the sealing glue layer, so that the sealing glue layer can be matched to seal the space in the mounting groove 1211, the sealing stability is improved, and the risk of easy water inlet when the sealing gasket is subjected to large shearing force is reduced.

Referring to fig. 4, according to some embodiments of the present application, the connection plate is provided with a first connection hole, the case frame 121 is provided with a second connection hole communicating with the first connection hole, and the first connection hole and the second connection hole are used for passing through a fastener 124 to fixedly connect the connection plate and the case frame 121.

In the present embodiment, the second connection hole is exemplarily provided near the mounting groove 1211.

Through set up first connecting hole on the connecting plate to set up in the second connecting hole that first connecting hole is linked together at box frame 121, utilize fastener such as bolt to pass first connecting hole and second connecting hole in proper order, alright with connecting plate and box frame 121 fixed connection, help improving the reliability that connecting plate and box frame 121 are connected, and help improving the stability of compressing tightly portion and sealing body 123 sealing fit.

According to some embodiments of the present application, the case frame 121 includes a plurality of sub-frames, and the sub-frames are connected end to end and define a receiving cavity with the connecting plate for receiving the battery cell therebetween; wherein, each sub-frame is provided with a mounting groove 1211, adjacent mounting grooves 1211 are communicated with each other, and each mounting groove 1211 is internally provided with a sealing body 123, and a pressing part of the connecting plate is in sealing connection with the sealing body 123 in each mounting groove 1211.

It will be appreciated that the sub-frames are frame beams for enclosing different sides of the plurality of battery cells 20. Adjacent subframes are connected by splice welding or clamping, etc., so as to form the box frame 121.

That is, the plurality of sub-frames of the box frame are connected end to end, so that the mounting grooves 1211 of the adjacent sub-frames can be mutually communicated, the pressing part on the connecting plate is matched with the shape of the mounting groove 1211 of the plurality of sub-frames, and is pressed into each mounting groove 1211, so that the sealing part 123 in each mounting groove 1211 can be in sealing connection with the space in the mounting groove 1211 of each sub-frame, the overall sealing performance of the box frame is improved, and the risk of water inflow caused by sealing failure of the box is further reduced.

The positions of the pressing portions of the connecting plates 122 correspond to the positions of the mounting grooves 1211 of the plurality of subframes, and the pressing portions are connected at the connection positions of the two adjacent subframes in a transitional connection manner, for example, the pressing portions may be integrally connected or may be mutually spliced or welded, so that the sealing bodies 123 in the mounting grooves 1211 of each subframe can be continuously sealed and connected by the pressing portions, and the sealing performance of the whole box body is improved.

According to some embodiments of the present application, referring to fig. 3 and 4, the present application provides a case assembly including a case frame 121, a sealing body, and a heat exchange plate. Wherein, the bottom of the box frame 121 is provided with a mounting groove 1211, the sealing body 123 is arranged in the mounting groove 1211, the heat exchange plate is arranged at the bottom of the box frame 121, one side of the heat exchange plate facing the box frame 121 is provided with a boss 1221, and the boss 1221 extends into the mounting groove 1211 and is abutted against the sealing body 123. According to the technical scheme, the boss 1221 on the heat exchange plate is abutted against the sealing body 123, so that the sealing body 123 is sealed after being compressed, the sealing stability of the box body can be improved, and the risk of easy water inflow during high-speed water-through of the box body is reduced.

According to some embodiments of the present application, the present application further provides a battery 100, including a battery 100 unit and the case assembly 12 according to any one of the above embodiments, where the battery 100 unit is accommodated in the accommodating cavity of the case assembly 12.

The battery 100 according to the present application includes the case assembly 12 according to any of the above embodiments, and therefore has the technical effects of any of the above embodiments, which are not described herein.

According to some embodiments of the present application, there is also provided an electric device including the battery 100 according to the above embodiment, where the battery 100 is used to supply power to the electric device.

The power utilization device provided by the application, because of comprising the battery 100 described in the above embodiment, also has the technical effects of any of the above embodiments, and will not be described herein.

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

Claims

1. A tank assembly, comprising:

the box body frame is provided with a mounting groove at one side;

The sealing body is arranged in the mounting groove;

The connecting plate is arranged on one side of the box body frame, which is provided with the mounting groove, and one side of the connecting plate, which faces the box body frame, is provided with a pressing part, and the pressing part is positioned in the mounting groove and is in sealing connection with the sealing body.

2. The housing assembly of claim 1, wherein the compression portion is a boss formed by the connection plate partially protruding into the mounting groove, and a cavity is defined on a side of the boss facing away from the mounting groove.

3. The tank assembly of claim 1, wherein the pressing portion includes a rib provided on a side of the connection plate facing the frame of the tank, and the rib is a solid body.

4. The tank assembly of claim 2, wherein the connecting plate comprises a first plate body and a second plate body connected to the first plate body, the first plate body is located between the tank frame and the second plate body, and the first plate body is provided with the boss.

5. The housing assembly of claim 4, wherein a heat exchange flow path is formed between the first plate and the second plate, the heat exchange flow path being for circulating a heat exchange medium.

6. The tank assembly of claim 4, wherein a heat exchange flow path is defined between the boss and the second plate.

7. The tank assembly of claim 1, wherein the connection plate comprises a tank floor.

8. The tank assembly according to any one of claims 1 to 7, wherein the sealing body includes a gasket interposed between the mounting groove and the pressing portion, the pressing portion being abutted against the gasket;

9. The tank assembly of any one of claims 1-7, wherein the connection plate is provided with a first connection hole, the tank rim is provided with a second connection hole in communication with the first connection hole, and the first connection hole and the second connection hole are used for passing fasteners to fixedly connect the connection plate and the tank rim.

10. The housing assembly of any one of claims 1-7, wherein the housing frame comprises a plurality of sub-frames, the plurality of sub-frames being joined end-to-end and defining a receiving cavity with the connecting plate for receiving a battery cell;

Each sub-frame is provided with a mounting groove, adjacent mounting grooves are communicated with each other, sealing bodies are arranged in the mounting grooves, and the pressing parts of the connecting plates are in sealing connection with the sealing bodies in the mounting grooves.

11. A battery, comprising:

a battery cell; and

The case assembly according to any one of claims 1 to 10, wherein the battery cell is accommodated in an accommodation chamber of the case assembly.

12. An electrical device comprising the battery of claim 11, the battery being configured to power the electrical device.