CN114823249B

CN114823249B - Cooling device, high-voltage box, battery and power consumption device

Info

Publication number: CN114823249B
Application number: CN202210435409.0A
Authority: CN
Inventors: 刘莹
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2023-11-21
Anticipated expiration: 2042-04-24
Also published as: CN114823249A

Abstract

The application provides a cooling device for carrying a fuse, comprising: the base is provided with a wall part and a cooling cavity formed by enclosing the wall part, the wall part comprises a top wall and a bottom wall which are oppositely arranged in the thickness direction of the base, the top wall is concavely arranged to the side where the bottom wall is arranged in the thickness direction and forms a concave cavity, and the concave cavity is used for accommodating the fuse; the connecting assembly is arranged on the base and comprises an inlet part and an outlet part, and the inlet part and the outlet part are respectively communicated with the cooling cavity. The application provides a cooling device, a high-voltage box, a battery and an electricity utilization device, wherein the cooling device can cool a fuse, the service life of the fuse is prolonged, and the safety performance of the battery is ensured.

Description

Cooling device, high-voltage box, battery and power consumption device

Technical Field

The application relates to the field of batteries, in particular to a cooling device, a high-voltage box, a battery and an electric device.

Background

Energy conservation and emission reduction are key to sustainable development of the automobile industry, and electric vehicles become an important component of sustainable development of the automobile industry due to the energy conservation and environmental protection advantages of the electric vehicles. For electric vehicles, battery technology is an important factor in the development of the electric vehicles.

In the current battery field, in order to guarantee that it is connected with vehicle consumer, can be provided with the high voltage box generally, the high voltage box has the fuse, and the fuse can play overload protection and short-circuit protection's effect, and it can produce corresponding heat in the course of the work, and the fuse is if be in the easy damage of high temperature environment for a long time, influences the security performance of battery.

Disclosure of Invention

In view of the above problems, the present application provides a cooling device, a high-voltage box, a battery and an electric device, wherein the cooling device can cool a fuse, thereby prolonging the service life of the fuse and ensuring the safety performance of the battery.

In a first aspect, the present application provides a cooling device for carrying a fuse, the cooling device comprising: the base is provided with a wall part and a cooling cavity formed by enclosing the wall part, the wall part comprises a top wall and a bottom wall which are oppositely arranged in the thickness direction of the base, the top wall is concavely arranged to the side where the bottom wall is arranged in the thickness direction and forms a concave cavity, and the concave cavity is used for accommodating the fuse; the connecting assembly is arranged on the base and comprises an inlet part and an outlet part, and the inlet part and the outlet part are respectively communicated with the cooling cavity.

The cooling device provided by the embodiment of the application comprises the base and the connecting component, wherein the top wall of the base is concavely arranged to the side where the bottom wall is positioned and forms the concave cavity, so that the fuse can be accommodated in the concave cavity, fluid for cooling can be injected into the cooling cavity through the inlet part of the connecting component, the cooling fluid entering the cooling cavity exchanges heat with the fuse through the top wall, the heat of the fuse is absorbed, the cooling of the fuse is realized, the service life of the fuse is prolonged, the safety performance of the battery is ensured, the heated cooling fluid is discharged through the outlet part, and the cooling effect is ensured.

In some embodiments, the cooling device further includes a locking portion provided to the base, the locking portion being configured to limit a degree of freedom of movement of the fuse in a thickness direction.

Through making cooling device include locking portion to make it be used for restricting the removal degree of freedom of fuse in thickness direction, make behind the cooling device's the cooling chamber of fuse installation, can guarantee that fuse and cooling device do not have relative displacement in thickness direction, guarantee the reliability that the two are connected.

In some embodiments, the wall portion is made of an elastic material, and the side of the top wall facing away from the bottom wall has two opposite free ends that extend towards one side close to each other and are gathered to form the locking portion.

Through the arrangement, on the basis of guaranteeing the limit requirement on the fuse, the cooling device is simple in integral structure and beneficial to forming.

In some embodiments, the top wall is an arcuate sheet-like structure, and an opening is formed in a side of the top wall facing away from the bottom wall, the opening having a width dimension in a width direction of the wall portion that is less than a maximum radial dimension of the top wall, wherein the width direction is perpendicular to the thickness direction.

Through the arrangement, the concave cavity formed can be better adapted to the external dimension of the fuse, and the limit requirement on the fuse is ensured.

In some embodiments, the top wall is provided with a receiving groove communicating with the cavity, the locking portion includes an elastic member and a clamping member, the elastic member is disposed in the receiving groove and connected with the top wall, and the clamping member is connected with the elastic member and can extend into or protrude out of the receiving groove.

According to the cooling device provided by the embodiment of the application, the accommodating groove communicated with the concave cavity is formed in the top wall, the locking part comprises the elastic piece and the clamping piece, the elastic piece is arranged in the accommodating groove and is connected with the top wall, the elastic piece can be compressed by the clamping piece in the process of loading the fuse, the clamping piece enters the accommodating groove, the fuse smoothly enters the concave cavity, and after the maximum diameter position of the fuse enters the concave cavity, the clamping piece protrudes out of the accommodating groove under the action of the elastic piece, and at least part of the fuse is pressed and held, so that the limit of the fuse is realized.

In some embodiments, the inlet portion and the outlet portion are respectively tubular structures and protrude from the base.

According to the cooling device provided by the embodiment of the application, the inlet part and the outlet part are respectively in the tubular structure and protrude out of the base, so that the connection of the inlet part and the outlet part with the cooling cavity and the external container, which can be a hydraulic station and the like, is facilitated. And the inlet part and the outlet part have simple structural forms, and are beneficial to processing and forming.

In some embodiments, the cooling device further comprises a thermally conductive layer positioned within the cavity and disposed in a stack on the top wall.

According to the cooling device provided by the embodiment of the application, the heat conduction layer is arranged, so that heat of the fuse can be conducted to the base quickly and can be exchanged with the cooling medium in the base, and the heat dissipation rate is improved.

In some embodiments, the cooling device further comprises a connection base disposed on the base, the connection base having a connection hole.

According to the cooling device provided by the embodiment of the application, the connecting seat is arranged on the base and provided with the connecting holes, so that the base can be fixed at the preset position through the connecting seat, the whole base is prevented from moving under the action of external force, and the safety performance of the cooling device is improved.

In a second aspect, the present application provides a high pressure cassette comprising a cooling device as described above; and the fuse is arranged in the concave cavity.

In a third aspect, the present application provides a battery comprising the high voltage cartridge described above.

In a fourth aspect, the present application provides an electrical device comprising a battery as described above.

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 present application;

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

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

FIG. 4 is a schematic view of a high-pressure box according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a cooling device according to an embodiment of the application;

FIG. 6 is a schematic view of a cooling device according to another embodiment of the present application;

FIG. 7 is a schematic view of a cooling device according to another embodiment of the present application;

fig. 8 is an exploded view of a cooling device according to still another embodiment of the present application.

Reference numerals in the specific embodiments are as follows:

1-a vehicle; 2-cell; 3-a controller; 4-motor; 5-a box body; 51-a first tank portion; 52-a second housing portion; 53-accommodation space; 6-battery module; 7-battery cells; 8-a high pressure cassette; 9-a fuse;

10-a cooling device;

11-a base; 111-wall section; 1111-top wall; 1111 a-a receiving groove; 1112-a bottom wall; 1113-a first sidewall; 1114-a second sidewall; 1115-front wall; 1116-a rear wall; 112-a cooling chamber; 113-a cavity;

121-an inlet portion; 122-outlet section;

13-a locking part; 131-free end; 132-an elastic member; 133-a clip;

14-a heat conducting layer;

15-connecting seats; 151-connecting holes;

x-thickness direction; y-width direction; z-length direction.

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.

It should be noted that unless otherwise indicated, technical or scientific terms used in the embodiments of the present application should be given the ordinary meanings as understood by those skilled in the art to which the embodiments of the present application belong.

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present application and simplify the description, and do not indicate or imply that the devices or elements 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.

Furthermore, the technical terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

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

In the description of embodiments of the application, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

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.

In order to ensure that the battery is connected with the vehicle electric equipment, a high-voltage box is usually arranged, so that the connection between the battery and the vehicle electric equipment is realized. A fuse is usually arranged in the high-voltage box, and the fuse can play roles of overload protection and short-circuit protection.

The inventor notices that the high-voltage box is easy to damage after running for a period of time, and influences the safety of the battery, and further researches find that a large amount of heat can be generated in the running process of the fuse in the high-voltage box, and the heat cannot be timely dissipated, so that the fuse is in a high-temperature environment for a long time, and is easy to damage, and the safety performance of the battery is further influenced.

In order to alleviate the problem of high-temperature damage of the fuse, the applicant has studied and found that the cooling of the fuse can be achieved by adding a cooling device and utilizing the cooling device.

Based on the above, the inventors have made intensive studies to design a cooling device for carrying a fuse, the cooling device comprising: the base is provided with a wall part and a cooling cavity formed by enclosing the wall part, the wall part comprises a top wall and a bottom wall which are oppositely arranged in the thickness direction of the base, the top wall is concavely arranged to the side where the bottom wall is arranged in the thickness direction and forms a concave cavity, and the concave cavity is used for accommodating the fuse; the connecting assembly is arranged on the base and comprises an inlet part and an outlet part, and the inlet part and the outlet part are respectively communicated with the cooling cavity. Through the cooling device who provides, carry out heat exchange with the fuse, absorb the heat of fuse, realize the cooling to the fuse, improve the life of fuse, guarantee the free security performance of battery.

The technical scheme described by the embodiment of the application is suitable for the high-voltage box, the battery and the power utilization device using the battery.

The electric device may be a vehicle, a mobile phone, a portable device, a notebook computer, a ship, a spacecraft, an electric toy, an electric tool, or the like. The vehicle can be a fuel oil vehicle, a fuel gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle or a range-extended vehicle; spacecraft including airplanes, rockets, space planes, spacecraft, and the like; the electric toy includes fixed or mobile electric toys, such as a game machine, an electric car toy, an electric ship toy, and an electric airplane toy; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railroad power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete shakers, and electric planers, among others. The embodiment of the application does not limit the electric device in particular.

It should be understood that the technical solutions described in the embodiments of the present application are not limited to the above-described batteries and electric devices, but may be applied to all batteries including a case and electric devices using the batteries, but for simplicity of description, the following embodiments are described by taking an electric vehicle as an example.

Fig. 1 is a schematic structural diagram of a vehicle according to some embodiments of the present application.

Referring to fig. 1, a vehicle 1 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 an extended range vehicle. 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.

To meet different usage power requirements, the battery 2 may include a plurality of battery cells 7, and the battery cells 7 refer to the smallest units constituting the battery module 6 or the battery pack. A plurality of battery cells 7 may be connected in series and/or parallel together via electrode terminals for various applications. The battery 2 mentioned in the present application includes a battery module 6 or a battery pack. The plurality of battery cells 7 may be connected in series or parallel or in parallel, and the series-parallel connection refers to a mixture of series connection and parallel connection. In the embodiment of the application, the plurality of battery cells 7 can directly form a battery pack, or can form the battery module 6 first, and then form the battery pack after the battery module 6.

Fig. 2 is a schematic structural view of a battery according to an embodiment of the present application, and fig. 3 is a schematic structural view of a case according to an embodiment of the present application.

As shown in fig. 2 and 3, the battery 2 includes a case 5, a battery module 6, and a high-voltage case 8, and the battery module 6 and the high-voltage case 8 are disposed in the case 5. The high-voltage box 8 is connected with a relay, a battery module 6 and the like through connecting components, and when short-circuit current occurs in a loop, a fuse in the high-voltage box 8 is fused to realize loop protection.

The case 5 may have a simple three-dimensional structure such as a single rectangular parallelepiped, a cylinder, or a sphere, or may have a complex three-dimensional structure formed by combining simple three-dimensional structures such as a rectangular parallelepiped, a cylinder, or a sphere, which is not limited in the embodiment of the present application. The material of the case 5 may be an alloy material such as an aluminum alloy or an iron alloy, a polymer material such as polycarbonate or polyisocyanurate foam, or a composite material such as glass fiber and epoxy resin, which is not limited in the embodiment of the present application.

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 first case portion 51 and a second case portion 52, the first case portion 51 and the second case portion 52 being overlapped with each other, the first case portion 51 and the second case portion 52 together defining an accommodating space 53 for accommodating the battery cell 7. The second case portion 52 may have a hollow structure with one end opened, the first case portion 51 has a plate-like structure, and the first case portion 51 is covered on the opening side of the second case portion 52 to form the case 5 having the accommodation space 53. The first case portion 51 and the second case portion 52 may each be a hollow structure having one side opened, and the opening side of the first case portion 51 is closed to the opening side of the second case portion 52 to form the case 5 having the accommodation space 53. Of course, the first and second case parts 51 and 52 may be of various shapes, such as a cylinder, a rectangular parallelepiped, and the like.

In order to improve the sealing property after the first casing 51 and the second casing 52 are connected, a sealing member, such as a sealant, a gasket, or the like, may be provided between the first casing 51 and the second casing 52.

Assuming that the first housing portion 51 is covered on top of the second housing portion 52, the first housing portion 51 may also be referred to as an upper case cover, and the second housing portion 52 may also be referred to as a lower case.

Fig. 4 is a schematic partial structure of a high-pressure tank 8 according to an embodiment of the present application.

As shown in fig. 4, the high-voltage box 8 may include a cooling device 10 and a fuse 9, the fuse 9 being provided to the cooling device 10, and cooling of the fuse 9 being achieved by the cooling device 10.

Fig. 5 is a schematic structural diagram of a cooling device 10 according to an embodiment of the present application.

As shown in fig. 5, in some embodiments, the cooling device 10 includes a base 11 and a connection assembly, the base 11 includes a wall portion 111 and a cooling cavity 112 formed by enclosing the wall portion 111, the wall portion 111 includes a top wall 1111 and a bottom wall 1112 disposed opposite to each other in a thickness direction X of the wall portion 111, the top wall 1111 is recessed toward the bottom wall 1112 along the thickness direction X and forms a cavity 113, and the cavity 113 is used for accommodating the fuse 9. The connection assembly is provided on the base 11, and includes an inlet portion 121 and an outlet portion 122, and the inlet portion 121 and the outlet portion 122 are respectively communicated with the cooling chamber 112.

Alternatively, the base 11 may be a hollow structure.

Alternatively, the base 11 may have a regular three-dimensional structure, and of course, an irregular structure may be employed.

Alternatively, the cooling chamber 112 formed by enclosing the wall portion 111 may be a closed chamber. The wall 111 may be formed of a thermally conductive material. Alternatively, the wall portion 111 may be a metal material or the like.

Alternatively, the depth and shape of the depression of the top wall 1111 toward the bottom wall 1112 may match the shape of the fuse 9. Alternatively, the shape of the cavity 113 may be arc-shaped, U-shaped slot-shaped, etc.

Alternatively, the connection assembly may be fixedly connected to the base 11, or may be detachably connected to the base.

Alternatively, the inlet portion 121 and the outlet portion 122 may have passages communicating with the cooling chamber 112, respectively.

Alternatively, the inlet portion 121 and the outlet portion 122 may be disposed on the same side of the base 11, but may be disposed on opposite sides of the base 11.

The cooling device 10 provided by the embodiment of the application comprises the base 11 and the connecting component, wherein the top wall 1111 of the base 11 is concavely arranged towards the side where the bottom wall 1112 is positioned to form the concave cavity 113, so that the fuse 9 can be accommodated in the concave cavity 113, fluid for cooling can be injected into the cooling cavity 112 through the inlet part 121 of the connecting component, the cooling fluid entering the cooling cavity 112 exchanges heat with the fuse 9 through the top wall 1111, the heat of the fuse 9 is absorbed, the cooling of the fuse 9 is realized, the service life of the fuse 9 is prolonged, the safety performance of a battery is ensured, the heated cooling fluid is discharged through the outlet part 122, and the cooling effect is ensured.

In some embodiments, the wall portion 111 includes a first side wall 1113 and a second side wall 1114 disposed opposite to each other in the width direction Y thereof, and includes a front wall 1115 and a rear wall 1116 in the length direction Z thereof, and the first side wall 1113 and the second side wall 1114 are connected between the top wall 1111 and the bottom wall 1112, respectively. The front wall 1115 and the rear wall 1116 are respectively connected between the top wall 1111 and the bottom wall 1112, and the front wall 1115 and the rear wall 1116 are respectively connected between the first side wall 1113 and the second side wall 1114, so that the top wall 1111, the bottom wall 1112, the first side wall 1113, the second side wall 1114, the front wall 1115 and the rear wall 1116 jointly enclose the cooling chamber 112.

The cooling device 10 provided by the embodiment of the application has the advantages that the wall part 111 adopts the above-mentioned form, the structure is simple, and the molding is facilitated.

In some embodiments, the cavity 113 is provided through the wall 111 in the length direction Z, facilitating the installation of fuses 9 of different lengths.

In some embodiments, the inlet portion 121 is disposed on the first sidewall 1113 and communicates with the cooling cavity 112, and the outlet portion 122 may be disposed on the second sidewall 1114 and communicates with the cooling cavity 112.

In some embodiments, the cooling device 10 further includes a locking portion 13, the locking portion 13 being provided to the base 11, the locking portion 13 being for restricting the degree of freedom of movement of the fuse 9 in the thickness direction X.

Alternatively, the locking portion 13 may be fixed to the base 11 and integrally constructed with the base 11, and of course, the locking portion 13 may be manufactured separately from the base 11 and then mounted to the base 11.

Alternatively, the locking portion 13 can restrict the fuse 9 from moving in the thickness direction X.

By making the cooling device 10 include the locking portion 13 and making it for restricting the degree of freedom of movement of the fuse 9 in the thickness direction X, it is possible to ensure that the fuse 9 and the cooling device 10 are free from relative displacement in the thickness direction X after the fuse 9 is mounted to the cooling chamber 112 of the cooling device 10, ensuring the reliability of the connection therebetween.

In some embodiments, the wall portion 111 is made of an elastic material, and the side of the top wall 1111 facing away from the bottom wall 1112 has two opposite free ends 131, and the two free ends 131 extend toward one side close to each other and are gathered to form the locking portion 13.

Alternatively, the wall portion 111 may be made of an elastic material, and it is possible to make the wall portion 111 entirely of an elastic material, but it is also possible to make the wall portion 111 partially of an elastic material, and it is possible to make the top wall 1111 thereof of an elastic material, for example.

Optionally, the top wall 1111 is concavely disposed, and opposite free ends 131 are formed at two ends of the wall 111 in the width direction Y after the concave arrangement, and the two free ends 131 may be disposed close to each other in opposite directions so as to form a clamping force on the fuse 9, so as to ensure a limit requirement on the fuse 9 in the thickness direction X.

Alternatively, the minimum distance between the two free ends 131 may be smaller than the maximum radial dimension of the fuse 9. In other words, in the width direction Y of the wall 111, the minimum distance between the two free ends 131 is smaller than the maximum dimension of the fuse 9 in the width direction Y. When the fuse 9 is fitted into the cooling device 10, the fuse 9 can be pressed in on one side in the thickness direction X of the cooling device 10, and since the wall portion 111 is made of an elastic material, the two free ends 131 of the top wall 1111 thereof can be disposed in a direction away from each other, so that the fuse 9 enters the cavity 113, and after the maximum diameter position of the fuse 9 passes, the two free ends 131 will rebound in a direction approaching each other to clamp and restrain the fuse 9 in the cooling device 10.

Through the arrangement, on the basis of guaranteeing the limit requirement on the fuse 9, the cooling device 10 is simple in integral structure and beneficial to forming.

In some embodiments, top wall 1111 is an arcuate sheet-like structure, with the side of top wall 1111 facing away from bottom wall 1112 forming an opening having a width dimension in a width direction Y of wall portion 111 that is less than the maximum radial dimension of top wall 1111, wherein width direction Y is perpendicular to thickness direction X.

Alternatively, the width dimension of the opening may be understood as the minimum vertical distance between the two free ends 131. To satisfy that the width dimension of the opening is smaller than the maximum radial dimension of the top wall 1111, the top wall 1111 may be made to extend along a circular arc track, which may be selected as a major arc, for example.

Through the arrangement, the formed concave cavity 113 can be better adapted to the external dimension of the fuse 9, and the limit requirement on the fuse 9 is ensured.

It will be appreciated that by having the wall portion 111 made of an elastic material, the side of the top wall 1111 facing away from the bottom wall 1112 has two opposite free ends 131, the two free ends 131 extending towards one another and being arranged in a gathered manner to form the locking portion 13 is just one alternative embodiment, but is not limited to the above example.

Fig. 6 is a schematic structural diagram of a cooling device 10 according to another embodiment of the present application.

As shown in fig. 6, in some embodiments, the top wall 1111 is provided with a receiving groove 1111a communicating with the cavity 113, and the locking portion 13 includes an elastic member 132 and a locking member 133, wherein the elastic member 132 is disposed in the receiving groove 1111a and connected to the top wall 1111, and the locking member 133 is connected to the elastic member 132 and can be extended into or protruded from the receiving groove 1111a.

Alternatively, the receiving groove 1111a may be a circular hole or a polygonal hole.

Alternatively, the elastic member 132 may employ a structure having elasticity such as a spring, a rubber body, or the like.

Alternatively, the elastic member 132 is connected between the top wall 1111 and the locking member 133, and when the fuse 9 is not installed in the cooling device 10, the locking member 133 protrudes from the accommodating groove 1111a at least partially under the action of the elastic member 132.

Alternatively, the catching piece 133 may take a spherical shape, a columnar shape, or the like.

According to the cooling device 10 provided by the embodiment of the application, the accommodating groove 1111a communicated with the concave cavity 113 is formed in the top wall 1111, the locking part 13 comprises the elastic piece 132 and the clamping piece 133, the elastic piece 132 is arranged in the accommodating groove 1111 and is connected with the top wall 1111, the elastic piece 132 can be compressed by the clamping piece 133 in the process of loading the fuse 9, the clamping piece 133 enters the accommodating groove 1111a, the fuse 9 smoothly enters the concave cavity 113, and after the maximum diameter position of the fuse 9 enters the concave cavity 113, the clamping piece 133 protrudes out of the accommodating groove 1111a under the action of the elastic piece 132, and at least part of the fuse 9 is pressed, so that the limit of the fuse 9 is realized.

In some embodiments, the inlet portion 121 and the outlet portion 122 are respectively tubular structures and protrude from the base 11.

Alternatively, the inlet portion 121 and the outlet portion 122 may be circular pipes, elliptical pipes, polygonal pipes, or the like, as long as the circulation requirement of the cooling medium can be ensured.

For example, the inlet portion 121 may be coupled to the first sidewall 1113 and the outlet portion 122 coupled to the second sidewall 1114.

In the cooling device 10 according to the embodiment of the present application, the inlet portion 121 and the outlet portion 122 are respectively formed as tubular structures and protrude from the base 11, so that the inlet portion 121 and the outlet portion 122 are advantageously connected to the cooling chamber 112 and an external container, which may be a hydraulic station or the like. The inlet portion 121 and the outlet portion 122 are simple in structure and are favorable for machining and forming.

Fig. 7 is a schematic structural view of a cooling device 10 according to still another embodiment of the present application, and fig. 8 is an exploded view of the cooling device 10 according to still another embodiment of the present application.

As shown in fig. 7 and 8, in some alternative embodiments, the cooling device 10 further includes a thermally conductive layer 14, the thermally conductive layer 14 being positioned within the cavity 113 and being disposed in a stack on the top wall 1111.

Alternatively, the thermal conductivity of the thermally conductive layer 14 is higher, alternatively, the thermal conductivity of the thermally conductive layer 14 may be greater than the thermal conductivity of the susceptor 11.

Alternatively, the heat conductive layer 14 may include a layer structure of a heat conductive adhesive layer, a heat conductive pad, or the like.

According to the cooling device 10 provided by the embodiment of the application, the heat conduction layer 14 is arranged, so that heat of the fuse 9 can be conducted to the base 11 quickly and is subjected to heat exchange with a cooling medium in the base 11, and the heat dissipation rate is improved.

In some embodiments, the cooling device 10 provided in the embodiments of the present application further includes a connection seat 15, where the connection seat 15 is disposed on the base 11, and the connection seat 15 has a connection hole 151.

Alternatively, the number of the connection seats 15 may be one, and of course, the number of the connection seats 15 may be plural. For example, the number of the connection seats 15 may be made two, and two connection seats 15 may be disposed opposite to each other, and in some examples, one of the two connection seats 15 may be connected to the first side wall 1113 and the other one may be connected to the second side wall 1114.

Alternatively, the number of the connection holes 151 included in the connection base 15 may be one, or may be plural.

Alternatively, the connection hole 151 in the connection seat 15 may be a light hole, or may be a screw hole.

According to the cooling device 10 provided by the embodiment of the application, the connecting seat 15 is arranged on the base 11, and the connecting seat 15 is provided with the connecting hole 151, so that the base 11 can be fixed at a preset position through the connecting seat 15, the whole base 11 is prevented from moving under the action of external force, and the safety performance of the cooling device 10 is improved.

According to some embodiments of the present application, there is provided a high voltage box 8 including the cooling device 10 and the fuse 9, wherein the fuse 9 is disposed in the cavity 113.

The high-voltage box 8 provided by the embodiment of the application comprises the cooling device 10 provided by each embodiment, so that the cooling device 10 can cool the fuse 9, the probability of high-temperature damage of the fuse 9 is reduced, and the safety performance and the service life of the high-voltage box 8 are improved.

According to some embodiments of the application, the application provides a battery 2 comprising a high voltage cassette 8 of any of the embodiments described above.

According to some embodiments of the application, the application further provides an electric device comprising a battery 2 according to any of the above aspects, and the battery 2 is used for providing electric energy to the electric device.

The powered device may be any of the aforementioned devices or systems employing the battery 2.

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 cooling device for carrying a fuse, the cooling device comprising:

the base is provided with a wall part and a cooling cavity formed by enclosing the wall part, the wall part comprises a top wall and a bottom wall which are oppositely arranged in the thickness direction of the base, the top wall is concavely arranged to the side of the bottom wall along the thickness direction and forms a concave cavity, and the concave cavity is used for accommodating the fuse;

the connecting assembly is arranged on the base and comprises an inlet part and an outlet part, and the inlet part and the outlet part are respectively communicated with the cooling cavity;

the top wall extends along a circular arc track, and the circular arc track is a major arc.

2. The cooling device according to claim 1, further comprising a locking portion provided to the base, the locking portion being configured to restrict a degree of freedom of movement of the fuse in the thickness direction.

3. A cooling device according to claim 2, wherein the wall portion is made of an elastic material, and the side of the top wall facing away from the bottom wall has two opposite free ends, the two free ends extending towards one side close to each other and being arranged in a gathered manner to form the locking portion.

4. A cooling device according to claim 3, wherein the top wall has an arcuate sheet-like structure, and an opening is formed in a side of the top wall facing away from the bottom wall, the opening having a width dimension in a width direction of the wall portion that is smaller than a maximum radial dimension of the top wall, wherein the width direction is perpendicular to the thickness direction.

5. The cooling device according to claim 2, wherein the top wall is provided with a receiving groove communicating with the cavity, the locking portion includes an elastic member and a clamping member, the elastic member is disposed in the receiving groove and connected with the top wall, and the clamping member is connected with the elastic member and can extend into or protrude out of the receiving groove.

6. The cooling device according to any one of claims 1 to 5, wherein the inlet portion and the outlet portion are each tubular structures and are provided protruding from the base.

7. The cooling device of any one of claims 1 to 5, further comprising a thermally conductive layer positioned within the cavity and disposed in a stack on the top wall.

8. The cooling device of any one of claims 1 to 5, further comprising a connection base provided to the base, the connection base having a connection hole.

9. A high pressure cassette comprising:

a cooling device according to any one of claims 1 to 8;

and the fuse is arranged in the concave cavity.

10. A battery comprising the high voltage cartridge of claim 9.

11. An electrical device comprising the battery of claim 10.