CN221327875U - Thermal management device, battery, and electricity using device - Google Patents

Abstract

The application provides a thermal management device, a battery and an electricity utilization device. The current collector comprises a shell and a separating piece, wherein the shell is provided with a current collecting space, the separating piece is connected with the shell and separates the current collecting space to form a first cavity and a second cavity, and the shell is provided with a liquid inlet and a first conversion port which are communicated with the first cavity, and a liquid outlet and a second conversion port which are communicated with the second cavity. The heat exchange piece is provided with a heat exchange channel, and the heat exchange channel is communicated with the first cavity through a liquid inlet and is communicated with the second cavity through a liquid outlet. The heat management device provided by the application has a simple structure and is easy to process.

Description

Thermal management device, battery, and electricity using device

Technical Field

The present application relates to the field of battery technologies, and in particular, to a thermal management device, 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. The power battery is used as a power source of the new energy automobile, and the performance requirements in all aspects are higher and higher.

The thermal management device included in the battery in the related art has a complicated structure, resulting in great difficulty in processing.

Disclosure of utility model

In view of the above problems, the present application provides a thermal management device, a battery and an electric device, which have simple structures and are easy to process.

In one aspect, there is provided according to an embodiment of the present application a thermal management device comprising: the current collector comprises a shell and a partition piece, wherein the shell is provided with a current collecting space, the partition piece is connected with the shell and divides the current collecting space into a first cavity and a second cavity, and the shell is provided with a liquid inlet and a first conversion port which are communicated with the first cavity, and a liquid outlet and a second conversion port which are communicated with the second cavity; the heat exchange piece is provided with a heat exchange channel, and the heat exchange channel is communicated with the first cavity through a liquid inlet and is communicated with the second cavity through a liquid outlet.

The heat management device comprises a current collector and a heat exchange piece, wherein the current collector comprises a shell and a partition piece, the partition piece is connected with the shell and divides a current collecting space of the shell into a first cavity and a second cavity, a heat exchange medium can enter a heat exchange channel through one of the first cavity and the second cavity, and the heat exchange medium in the heat exchange channel can enter the other of the first cavity and the second cavity so that the heat exchange medium can circulate in the heat exchange channel to exchange heat with a battery cell, and the current collector is arranged in a mode of comprising the shell and the partition piece, so that the heat exchange device can ensure the requirement of the heat exchange device on the communication arrangement of the current collector and the heat exchange piece, and is simple in structure and convenient to process and manufacture.

According to one aspect of an embodiment of the application, the first cavity is disposed around at least a portion of the second cavity.

According to the heat management device provided by the embodiment of the application, the first cavity is arranged around at least part of the second cavity, so that the current collector can be communicated with different numbers of heat exchange pieces, the structure is compact, and the space is saved.

According to one aspect of the embodiment of the application, the shell comprises a shell body and a cover plate, wherein the cover plate is fixedly connected with the shell body and encloses a current collecting space, and the separator is connected between the shell body and the cover plate.

According to the thermal management device provided by the embodiment of the application, the shell is arranged in the structure form comprising the shell body and the cover plate, so that the thermal management device is convenient to process and manufacture, is beneficial to assembly and is beneficial to reducing cost.

According to one aspect of an embodiment of the present application, the partition is a unitary structure with either the housing body or the cover plate.

According to the thermal management device provided by the embodiment of the application, the partition piece can be integrally formed with the shell body and the cover plate, so that the assembly efficiency is improved, and the flexibility is high.

According to one aspect of the embodiment of the application, the heat exchange piece is arranged at one side of the current collector along the first direction, the liquid inlet and the liquid outlet are arranged side by side along the second direction, and the first direction is intersected with the second direction.

According to the heat management device provided by the embodiment of the application, the liquid inlet and the liquid outlet are arranged side by side along the second direction, so that the heat exchange pieces can be arranged in the same extension plane, the internal space of a battery is saved, and the overall structure layout is facilitated.

According to an aspect of the embodiment of the application, the shell body comprises a bottom wall and a side wall surrounding the bottom wall, the bottom wall is opposite to the cover plate and is connected with the cover plate through the side wall, the partition piece is connected between the bottom wall, the side wall and the cover plate, the liquid inlet and the liquid outlet are both arranged on any one of the side wall and the cover plate, and the first rotating interface and the second rotating interface are both arranged on one of the bottom wall and the cover plate.

According to the thermal management device provided by the embodiment of the application, through the arrangement, the flexibility of manufacturing the current collector is improved, so that the flexibility of the thermal management device is improved.

According to one aspect of the embodiment of the application, in the first direction, the orthographic projection of the first cavity and the orthographic projection of the second cavity are overlapped, the cover plate is arranged on one side of the shell body along the third direction, any one of the bottom wall and the cover plate is provided with a first rotating interface and a second rotating interface, the side wall is provided with a liquid inlet and a liquid outlet, and the first direction, the second direction and the third direction are intersected.

According to the thermal management device provided by the embodiment of the application, the first cavity and the second cavity are distributed in the first direction, the first conversion port and the second conversion port are both arranged on any one of the bottom wall and the cover plate which are opposite along the third direction, and the liquid inlet and the liquid outlet are both arranged on the side wall connecting the bottom wall and the cover plate, so that the opening directions of the liquid inlet and the liquid outlet are intersected with the opening directions of the first conversion port and the second conversion port, and the structural layout of the current collector is more compact and reasonable.

According to one aspect of the embodiment of the application, in the third direction, the orthographic projection of the first cavity and the orthographic projection of the second cavity are overlapped, the cover plate is arranged on one side of the shell body along the first direction, the side wall is provided with a first rotating port and a second rotating port, any one of the bottom wall and the cover plate is provided with a liquid inlet and a liquid outlet, and the first direction, the second direction and the third direction are intersected.

According to the thermal management device provided by the embodiment of the application, the first cavity and the second cavity are distributed in the third direction, the first conversion port and the second conversion port are both arranged on the side wall connecting the bottom wall and the cover plate, and the liquid inlet and the liquid outlet are both arranged on any one of the bottom wall and the cover plate opposite to each other along the first direction, so that the opening directions of the liquid inlet and the liquid outlet are intersected with the opening directions of the first conversion port and the second conversion port, and the structural layout of the current collector design is more compact and reasonable.

According to one aspect of the embodiment of the application, the number of the heat exchange pieces is two or more, and the number of the liquid inlets and the liquid outlets is two or more.

According to the heat management device provided by the embodiment of the application, the heat exchange elements are arranged in two or more, so that the heat management efficiency of the heat management device is improved.

According to one aspect of the embodiments of the present application, the two or more liquid outlets are located between the two or more liquid inlets along the second direction.

According to the heat management device provided by the embodiment of the application, the liquid inlets are arranged on two sides of all the liquid outlets along the second direction, so that the structure of the current collector can be simplified, and the cost is saved.

According to one aspect of the embodiment of the application, the first cavity comprises a first subchamber, a second subchamber and a third subchamber which are communicated in sequence, the second cavity is positioned between the first subchamber and the third subchamber, and the shell is provided with at least one liquid inlet communicated with the first subchamber and at least one liquid inlet communicated with the third subchamber.

According to the heat management device provided by the embodiment of the application, through the arrangement, the condition that the current collector is communicated with more than two heat exchange pieces can be met, the heat management efficiency of the heat management device is improved, and the processing and the manufacturing are facilitated.

According to one aspect of the embodiment of the application, the heat exchange pieces are arranged in pairs, the heat exchange pieces arranged in pairs are symmetrically distributed along the second direction, the liquid inlets and the liquid outlets are arranged in pairs, and the liquid outlets arranged in pairs are positioned between the liquid inlets arranged in pairs along the second direction.

According to the heat management device provided by the embodiment of the application, through the arrangement, the heat management efficiency of the heat management device can be improved, the occupied space of the current collector can be reduced, and the cost can be reduced.

According to one aspect of the embodiment of the application, each heat exchange channel comprises a first flow channel, a second flow channel and a bending flow channel connected between the first flow channel and the second flow channel, wherein the first flow channel and the second flow channel are distributed at intervals along a second direction, the first flow channel is communicated with the first cavity through a liquid inlet, and the second flow channel is communicated with the second cavity through a liquid outlet.

According to the heat management device provided by the embodiment of the application, the heat exchange channel is arranged to be of a structure comprising the first flow channel, the bending flow channel and the second flow channel, so that the size of the current collector is reduced, and the cost is reduced.

According to an aspect of the embodiment of the application, the current collector further comprises a connecting tube group connected to the shell, the connecting tube group comprises an inlet tube and an outlet tube, the inlet tube is communicated with the first cavity through a first conversion interface, and the outlet tube is communicated with the second cavity through a second conversion interface; and/or, the current collector further comprises a connecting bracket connected to the shell.

The heat management device provided by the embodiment of the application is arranged in the connecting pipe group, so that a heat exchange medium can conveniently enter and exit the current collector, the effectiveness of the heat management device for carrying out heat management on the battery cells is ensured, and the connecting bracket is arranged, so that the heat management device is convenient to assemble and use.

In another aspect, a battery according to an embodiment of the present application includes the thermal management device described above.

In yet another aspect, an electrical device according to the present application includes a battery as described above for providing electrical energy.

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 illustration of a vehicle of an embodiment of the application;

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

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

FIG. 4 is a schematic structural view of a thermal management device according to one embodiment of the present application;

FIG. 5 is a top view of the thermal management device of FIG. 4;

FIG. 6 is a schematic view of a partial exploded construction of a thermal management device according to one embodiment of the present application;

FIG. 7 is a schematic view of a structure of a current collector in a thermal management device according to an embodiment of the present application;

FIG. 8 is a partial cross-sectional view of a thermal management device of one embodiment of the application;

FIG. 9 is a schematic view showing a structure of a current collector in a thermal management device according to another embodiment of the present application;

Fig. 10 is a schematic view of the current collector of fig. 9 taken along the A-A direction.

Wherein:

1-a vehicle; 1000-cell; 2000-controller; 3000-motor; 200-battery modules; 300-a box body; 310-a first tank portion; 320-a second tank portion; 200 a-battery cells; 201-electrode terminals; 202-an electrode assembly; 203-a battery housing; 204-end caps;

100-thermal management device;

10-current collector; 11-a housing; 111-a shell body; 1111-a bottom wall; 1112-sidewalls; 112-cover plate; 12-a separator; 101-a first cavity; 101 a-a liquid inlet; 1011-a first subchamber; 1012-a second subchamber; 1013-a third subchamber; 101 b-a first transfer interface; 102-a second chamber; 102 a-a liquid outlet; 102 b-a second interface;

20-heat exchange pieces; 21-heat exchange channels; 211-a first flow channel; 212-bending the runner; 213-a second flow channel; 31-pipe feeding; 32-exit tube; 40-bracket;

x-a first direction; y-a second direction; z-third direction.

In the drawings, like parts are designated with like reference numerals. The figures are not drawn to scale.

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.

Reference to a battery in accordance with an embodiment of the present application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in the present application may include a battery module or a battery pack, or the like.

The battery cell may be a secondary battery cell, and the secondary battery cell refers to a battery cell that can activate an active material by charging after discharging the battery cell and continue to use.

The battery monomer includes casing, end cover subassembly, electrode assembly and electrolyte, and electrode assembly sets up in the casing, and electrolyte fills in the casing, and end cover subassembly seals the opening setting of casing. With the continuous popularization of new energy automobiles, the performance requirements of users on power batteries in the new energy automobiles become higher and higher, and the performance of the battery monomers serving as important components of the power batteries often greatly influences the performance of the power batteries.

The heat management device included in the battery in the related art comprises a current collector formed by assembling a plurality of parts, and the current collector is assembled together by adopting processes such as aluminum extrusion, CNC, stamping, brazing and the like, so that the structure is complex, and the processing difficulty is high due to more parts.

Based on the technical problems, the embodiment of the application provides a thermal management device which comprises a current collector and a heat exchange piece. The current collector comprises a shell and a separating piece, wherein the shell is provided with a current collecting space, the separating piece is connected with the shell and separates the current collecting space to form a first cavity and a second cavity, and the shell is provided with a liquid inlet and a first conversion port which are communicated with the first cavity, and a liquid outlet and a second conversion port which are communicated with the second cavity. The heat exchange piece is provided with a heat exchange channel, and the heat exchange channel is communicated with the first cavity through a liquid inlet and is communicated with the second cavity through a liquid outlet. The current collector consists of a shell and a partition piece, and has simple structure and easy processing.

The technical solutions described in the embodiments of the present application are applicable to various devices using batteries, for example, mobile phones, portable devices, notebook computers, battery cars, electric toys, electric tools, electric vehicles, ships, spacecraft, and the like, and for example, spacecraft include airplanes, rockets, space shuttles, spacecraft, and the like.

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

For example, as shown in fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1 according to an embodiment of the present application, the vehicle 1 may be a fuel-oil vehicle, a gas-fired 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. A motor 3000, a controller 2000, and a battery 1000 may be provided inside the vehicle 1, and the controller 2000 is configured to control the battery 1000 to supply power to the motor 3000. For example, the battery 1000 may be provided at the bottom or the head or the tail of the vehicle 1. The battery 1000 may be used for power supply of the vehicle 1, e.g., the battery 1000 may be used as an operating power source for the vehicle 1, for circuitry of the vehicle 1, e.g., for operating power requirements at start-up, navigation and operation of the vehicle 1. In another embodiment of the present application, the battery 1000 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.

As shown in fig. 2, to meet different power requirements, the battery 1000 may include a plurality of battery cells 200a, wherein the plurality of battery cells 200a may be connected in series or parallel or in series-parallel, and the series-parallel refers to a mixture of series and parallel. Battery 1000 may also be referred to as a battery pack. Alternatively, the plurality of battery cells 200a may be connected in series or parallel or series-parallel to form the battery module 200, and then the plurality of battery modules 200 may be connected in series or parallel or series-parallel to form the battery 1000. That is, the plurality of battery cells 200a may be directly assembled into the battery 1000, or may be assembled into the battery module 200 first and then assembled into the battery 1000.

The battery 1000 may include a plurality of battery cells 200a. The battery 1000 may further include a case 300 (or a cover), wherein the case 300 has a hollow structure, and a plurality of battery cells 200a are received in the case 300.

The case 300 may have a simple three-dimensional structure such as a single rectangular parallelepiped, a cylinder, or a sphere, or 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 300 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 300 is for receiving the battery cell 200a, and the case 300 may have various structures. In some embodiments, the case 300 may include a first case portion 310 and a second case portion 320, the first case portion 310 and the second case portion 320 being overlapped with each other, the first case portion 310 and the second case portion 320 together defining an accommodating space for accommodating the battery cell 200 a. The second case 320 may have a hollow structure with one end opened, the first case 310 has a plate-shaped structure, and the first case 310 is covered on the opening side of the second case 320 to form the case 300 having an accommodating space; the first case portion 310 and the second case portion 320 may each have a hollow structure with one side opened, and the opening side of the first case portion 310 is covered with the opening side of the second case portion 320 to form the case 300 having the receiving space. Of course, the first and second case parts 310 and 320 may be of various shapes, such as a cylinder, a rectangular parallelepiped, etc.

In order to improve the sealing property after the first housing part 310 is connected to the second housing part 320, a sealing member, such as a sealant, a sealing ring, or the like, may be disposed between the first housing part 310 and the second housing part 320.

Assuming that the first housing part 310 is covered on top of the second housing part 320, the first housing part 310 may also be referred to as an upper case cover, and the second housing part 320 may also be referred to as a lower case.

The plurality of battery cells 200a in the battery module 200 may be electrically connected to each other through a bus bar member to realize parallel connection or series-parallel connection of the plurality of battery cells 200a in the battery module 200.

In the present application, the battery cell 200a may include a lithium ion battery cell, a sodium ion battery cell, a magnesium ion battery cell, or the like, which is not limited in the embodiment of the present application. The battery cell 200a may have a cylindrical shape, a flat shape, a rectangular parallelepiped shape, or other shapes, which is not limited in the embodiment of the present application. The battery cells 200a are generally divided into three types in a package manner: the cylindrical battery cell, the square battery cell and the soft package battery cell are not limited in this embodiment.

As shown in fig. 3, the battery cell 200a includes a battery case 203, an electrode assembly 202, and an end cap 204, and the battery case 203 is an assembly for mating with the end cap 204 to form an internal environment of the battery cell 200a, wherein the formed internal environment may be used to house the electrode assembly 202, an electrolyte (not shown in the figures), and other components. The battery case 203 and the end cap 204 may be separate members, and an opening may be provided in the battery case 203, and the opening may be covered by the end cap 204 at the opening to form the internal environment of the battery cell 200 a. The end cap 204 and the battery case 203 may be integrated, and specifically, the end cap 204 and the battery case 203 may form a common connection surface before other components are put into the case, and when the interior of the battery case 203 needs to be sealed, the end cap 204 is then covered with the battery case 203. The battery case 203 may be of various shapes and various sizes, such as a rectangular parallelepiped shape, a cylindrical shape, a hexagonal prism shape, etc. Specifically, the shape of the battery case 203 may be determined according to the specific shape and size of the electrode assembly 202. The material of the battery case 203 may be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which is not particularly limited in the embodiment of the present application.

The electrode assembly 202 is a component in which electrochemical reactions occur in the battery cell 200 a. One or more electrode assemblies 202 may be contained within the battery housing 203. The electrode assembly 202 is mainly formed by winding or stacking a positive electrode sheet and a negative electrode sheet, and a separator is generally provided between the positive electrode sheet and the negative electrode sheet. The portions of the positive and negative electrode sheets having the active material constitute the main body portion of the electrode assembly, and the portions of the positive and negative electrode sheets having no active material constitute tabs (not shown in the drawings) respectively. The positive electrode tab and the negative electrode tab may be located at one end of the main body portion together or located at two ends of the main body portion respectively. During charge and discharge of the battery, the positive electrode active material and the negative electrode active material react with the electrolyte, and the tab is connected with the electrode terminal to form a current loop.

The end cap 204 refers to a member that is covered at the opening of the battery case 203 to isolate the internal environment of the battery cell 200a from the external environment. Without limitation, the shape of the end cap 204 may be adapted to the shape of the housing battery housing 203 to fit the battery housing 203.

In some embodiments, a pressure relief mechanism may also be provided on the end cap 204 for relieving the internal pressure of the battery cell 200a when the internal pressure or temperature reaches a threshold. The material of the end cap 204 may be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which is not particularly limited in the embodiment of the present application.

In some embodiments, insulation may also be provided on the inside of the end cap 204, which may be used to isolate electrical connection components within the battery housing 203 from the end cap 204 to reduce the risk of short circuits. By way of example, the insulation may be plastic, rubber, or the like.

The battery case 203 is an assembly for mating with the end cap 204 to form the internal environment of the battery cell 200a, which may be used to house the electrode assembly 202, electrolyte, and other components. The battery case 203 and the end cap 204 may be separate members, and an opening may be provided in the battery case 203, and the opening may be covered by the end cap 204 at the opening to form the internal environment of the battery cell 200 a.

In some examples, the battery housing 203 is a hollow structure with one side open, and the end cap 204 is one and covers the opening of the battery housing 203. In other examples, the battery case 203 has a hollow structure with two openings on both sides, and two end caps 204 are respectively covered on the two openings of the battery case 203.

The electrode assembly 202 is a component in which electrochemical reactions occur in the battery cell 200 a. One or more electrode assemblies 202 may be contained within the battery housing 203. The electrode assembly 202 is mainly formed by winding or stacking a positive electrode sheet and a negative electrode sheet, and a separator is generally provided between the positive electrode sheet and the negative electrode sheet. The portions of the positive and negative electrode sheets having active material constitute the main body of the electrode assembly 202, and the portions of the positive and negative electrode sheets having no active material constitute the tabs, respectively. The positive electrode tab and the negative electrode tab can be located at one end of the main body together or located at two ends of the main body respectively. During charge and discharge of the battery 1000, the positive electrode active material and the negative electrode active material react with the electrolyte, and the tab is connected to the electrode terminal 201 to form a current loop.

As shown in fig. 2, a battery 1000 according to an embodiment of the present application further includes a thermal management device 100, wherein during use of the battery 1000, the battery cell 200a generates heat, and in some examples, an upper surface of the heat exchange member 20 in the thermal management device 100 contacts a lower surface of the battery cell 200a, and/or a lower surface of the heat exchange member 20 in the thermal management device 100 contacts an upper surface of the battery cell 200a, and during use, a heat exchange medium flows through the heat exchange member 20 to remove heat of the battery cell 200a, thereby cooling the battery cell 200a to improve performance and service life of the battery 1000.

Referring to fig. 4 to 10 together, a thermal management device 100 according to an embodiment of the application includes a current collector 10 and a heat exchange member 20, wherein the current collector 10 includes a housing 11 and a partition member 12, the housing 11 has a current collecting space, the partition member 12 is connected to the housing 11 and separates the current collecting space to form a first cavity 101 and a second cavity 102, and the housing 11 has a liquid inlet 101a and a first switching port 101b which are in communication with the first cavity 101, and a liquid outlet 102a and a second switching port 102b which are in communication with the second cavity 102. The heat exchange member 20 has a heat exchange passage 21, and the heat exchange passage 21 communicates with the first chamber 101 through a liquid inlet 101a and communicates with the second chamber 102 through a liquid outlet 102 a.

The current collector 10 comprises a shell 11 and a partition piece 12, and the current collecting space in the shell 11 can be partitioned to form a first cavity 101 and a second cavity 102 only by connecting the partition piece 12 in the shell 11, so that the current collector 10 has a simple structure, is convenient to process and manufacture, and is beneficial to reducing the cost. Alternatively, the partition 12 may be provided in a linear structure, and of course, may be provided in an arc-shaped structure.

One of the first cavity 101 and the second cavity 102 may be configured as a liquid inlet cavity, and the other of the first cavity 101 and the second cavity 102 is a liquid outlet cavity, which is not limited in the present application. For convenience of description, the description will be made with the first cavity 101 as a liquid inlet cavity and the second cavity 102 as a liquid outlet cavity, that is, the heat exchange medium enters the first cavity 101 from the first transfer port 101b and enters the heat exchange channel 21 through the liquid inlet port 101a, and the heat exchange medium in the heat exchange channel 21 enters the second cavity 102 from the liquid outlet port 102a and flows out through the second transfer port 102 b. It should be understood that the first cavity 101 may also be a liquid outlet cavity, and the second cavity 102 may also be a liquid inlet cavity, that is, the heat exchange medium enters the second cavity 102 from the second adapting port 102b and enters the heat exchange channel 21 through the liquid outlet port 102a, and the heat exchange medium in the heat exchange channel 21 enters the first cavity 101 from the liquid inlet port 101a and flows out through the first adapting port 101 b.

The heat exchange member 20 has an inlet and an outlet communicating with the heat exchange passage 21, the inlet being disposed opposite to the liquid inlet 101a, and the outlet being disposed opposite to the liquid outlet 102 a. Alternatively, the heat exchange member 20 may be provided in a plate-shaped structure so as to be disposed at one side of the battery cell 200a in the third direction Z for better heat exchange with the battery cell 200 a.

In some alternative embodiments, as shown in fig. 6, the liquid inlet 101a and the liquid outlet 102a may be configured as holes on the same plane as the housing 11, and the heat exchange member 20 may be inserted into the housing 11 through the liquid inlet 101a and the liquid outlet 102a to ensure communication between the heat exchange member 20 and the current collector 10, and of course, the heat exchange member 20 may also be connected to the housing 11 at the periphery of the liquid inlet 101a and the liquid outlet 102a to ensure communication between the heat exchange member 20 and the current collector 10.

As shown in fig. 9, in some alternative embodiments, the current collector 10 further includes a first protrusion protruding around the liquid inlet 101a and a second protrusion protruding around the liquid outlet 102a, where the first protrusion and the second protrusion may be provided separately from the housing 11, and of course, the first protrusion and the second protrusion may also be formed by extending from the housing 11, and the heat exchange member 20 is connected with the first protrusion and the second protrusion in a plugging manner, so as to ensure communication between the heat exchange member 20 and the current collector 10.

The thermal management device 100 provided by one embodiment of the present application includes a current collector 10 and a heat exchange member 20, where the current collector 10 includes a housing 11 and a partition member 12, the partition member 12 is connected to the housing 11 and separates a current collecting space of the housing 11 into a first cavity 101 and a second cavity 102, a heat exchange medium can enter a heat exchange channel 21 through one of the first cavity 101 and the second cavity 102, and the heat exchange medium in the heat exchange channel 21 can enter the other of the first cavity 101 and the second cavity 102, so that the heat exchange medium can circulate in the heat exchange channel 21 to exchange heat with a battery cell 200a, and the current collector 10 is provided in a form including the housing 11 and the partition member 12, which can ensure the requirement of the connection arrangement with the heat exchange member 20, and has a simple structure and is convenient for processing and manufacturing.

In some alternative embodiments, the first cavity 101 is disposed around at least a portion of the second cavity 102.

The arrangement of the first cavity 101 around at least part of the second cavity 102 is understood to mean that at least part of the second cavity 102 is surrounded by the first cavity 101, the first cavity 101 being arranged around the periphery of the second cavity 102.

By this arrangement, the flexible arrangement of the first transfer port 101b, the second transfer port 102b, the liquid inlet 101a and the liquid outlet 102a on the housing 11 can be facilitated according to the number of the heat exchange members 20.

According to the thermal management device 100 provided by one embodiment of the application, the first cavity 101 is arranged around at least part of the second cavity 102, so that the current collector 10 can be communicated with different numbers of heat exchange pieces 20, and the thermal management device is compact in structure and beneficial to saving space.

For example, as shown in fig. 8, the first chamber 101 is partially disposed around the second chamber 102, and the first chambers 101 disposed on both sides of the second chamber 102 along the second direction Y may be provided with liquid inlets 101a to be respectively disposed in communication with different heat exchanging members 20.

In some examples, the first cavity 101 may also be integrally disposed around the second cavity 102, that is, the first cavity 101 is disposed around the second cavity 102, for example, in the third direction Z, the front projection of the first cavity 101 and the front projection of the second cavity 102 are not overlapped, the liquid inlet 101a and the liquid outlet 102a are disposed on one side of the current collector 10 along the first direction X, and the heat exchange member 20 can pass through the housing 11 to be disposed in communication with the second cavity 102 through the liquid outlet 102 a.

In some alternative embodiments, the case 11 includes a case body 111 and a cover plate 112, the cover plate 112 is fixedly connected with the case body 111 and encloses a current collecting space, and the separator 12 is connected between the case body 111 and the cover plate 112.

Specifically, the shell body 111 and the cover plate 112 can be manufactured separately and fixedly connected to form the shell 11 with the current collecting space, so that the structure is simple, the processing is convenient, and the processing difficulty is reduced.

In some examples, the fixing connection manner between the cover plate 112 and the shell body 111 may be welded to improve the connection strength between the cover plate 112 and the shell body 111, in other examples, the cover plate 112 and the shell body 111 may be manufactured by die casting, which is beneficial to reducing the cost and has low failure risk, and in other examples, the cover plate 112 and the shell body 111 may be provided with a detachable connection manner such as a snap connection or a pin connection, which is convenient to disassemble and assemble.

In the thermal management device 100 according to an embodiment of the present application, the housing 11 is configured to include the housing body 111 and the cover plate 112, so that the thermal management device is easy to manufacture and assemble.

In some alternative embodiments, the divider 12 is a unitary structure with either of the housing body 111 and the cover plate 112.

The partition 12 can be integrally formed with the shell body 111 and then assembled with the cover plate 112, and of course, the partition 12 can also be integrally formed with the cover plate 112 and then assembled with the shell body 111, so that the assembly is convenient and the processing difficulty is reduced.

Illustratively, the divider 12 is a unitary structure with the housing body 111, facilitating assembly of the cover 112 with the divider 12 and housing 11.

The thermal management device 100 according to an embodiment of the present application is beneficial to improving assembly efficiency and has high flexibility through the above arrangement.

Referring to fig. 4, 5 and 6, in some alternative embodiments, the heat exchange member 20 is disposed on one side of the current collector 10 along the first direction X, and the liquid inlet 101a and the liquid outlet 102a are disposed side by side along the second direction Y, where the first direction X intersects the second direction Y.

The first direction X may be a width direction of the case 11 of the current collector 10, the second direction Y may be a length direction of the case 11, and the third direction Z may be a thickness direction of the case 11.

The liquid inlet 101a and the liquid outlet 102a are arranged side by side along the second direction Y, which is understood to mean that in the third direction Z, the liquid inlet 101a and the liquid outlet 102a are located at the same height, that is, the center of the liquid inlet 101a and the center of the liquid outlet 102a are located in the same plane of extension in the second direction Y.

According to the thermal management device 100 provided by the embodiment of the application, the liquid inlet 101a and the liquid outlet 102a are arranged side by side along the second direction Y, so that the heat exchange elements 20 connected with the current collector 10 through the liquid inlet 101a and the liquid outlet 102a can be positioned on the same plane of extension in the second direction Y, more battery cells 200a can be arranged in the battery 1000 through the structure, the internal space of the battery 1000 can be saved, and the structural layout of the internal part of the battery 1000 can be facilitated.

Referring to fig. 8 and 9, in some alternative embodiments, the housing body 111 includes a bottom wall 1111 and a side wall 1112 surrounding the bottom wall 1111, the bottom wall 1111 is opposite to the cover 112 and connected to the bottom wall 1111 through the side wall 1112, the partition 12 is connected between the bottom wall 1111, the side wall 1112 and the cover 112, the liquid inlet 101a and the liquid outlet 102a are disposed on either of the side wall 1112 and the cover 112, and the first adapter 101b and the second adapter 102b are disposed on either of the bottom wall 1111 and the cover 112.

Optionally, the case body 111 includes a prismatic structure, where the prismatic structure includes any one of a cube and a cuboid, and of course, the case body 111 may also include a cylindrical structure, and of course, the case body 111 may also include a prismatic table structure, where the prismatic table structure includes any one of a regular prismatic table, a triangular prismatic table, a quadrangular prismatic table, and a pentagonal prismatic table.

In some examples, the shell body 111 is configured as a prismatic structure, so that the first adapter 101b, the second adapter 102b, the liquid inlet 101a and the liquid outlet 102a can be conveniently arranged, and the processing and the assembly are convenient, so that the occupied space of the shell body 111 is reduced, and the space utilization rate in the battery 1000 is improved.

The shell body 111 is illustratively provided with a rectangular parallelepiped structure, and the length dimension of the shell body 111 along the first direction X is smaller than the length dimension of the shell body 111 along the second direction Y, so as to facilitate the provision of two, three or more heat exchange elements 20 disposed on one side of the shell body 111 along the first direction X, and facilitate the provision of heat exchange elements 20 with different shapes and layouts.

The liquid inlet 101a and the liquid outlet 102a are disposed in the same extension plane, and the first transfer port 101b and the second transfer port 102b are disposed in the same extension plane, so that the thermal management device 100 is convenient for reasonable layout, and the occupied space is reduced.

The liquid inlet 101a and the liquid outlet 102a may be disposed on the side wall 1112, and of course, may also be disposed on the cover 112, and the first adapter 101b and the second adapter 102b may be disposed on the bottom wall 1111, and of course, may also be disposed on the cover 112.

By the arrangement of the thermal management device 100 according to an embodiment of the present application, the flexibility of the current collector 10 is improved, thereby improving the flexibility of the thermal management device 100.

As shown in fig. 8, in some alternative embodiments, in the first direction X, the front projection of the first cavity 101 and the front projection of the second cavity 102 are overlapped, the cover plate 112 is disposed on one side of the housing body 111 along the third direction Z, any one of the bottom wall 1111 and the cover plate 112 is provided with the first adapting port 101b and the second adapting port 102b, the side wall 1112 is provided with the liquid inlet 101a and the liquid outlet 102a, and the first direction X, the second direction Y intersect with the third direction Z.

In some examples, the first transfer port 101b and the second transfer port 102b are both disposed on the bottom wall 1111, the side wall 1112 is provided with the liquid inlet 101a and the liquid outlet 102a, in some examples, the first transfer port 101b and the second transfer port 102b are both disposed on the cover plate 112, the side wall 1112 is provided with the liquid inlet 101a and the liquid outlet 102a, by this way, the opening directions of the liquid inlet 101a and the liquid outlet 102a are intersected with the opening directions of the first transfer port 101b and the second transfer port 102b, so that the heat exchange piece 20 connected with the liquid inlet 101a and the liquid outlet 102a is prevented from interfering with the first transfer port 101b and the second transfer port 102b, and this arrangement is reasonable and convenient for connection.

In the thermal management device 100 provided in an embodiment of the present application, at least a portion of the first cavity 101 and the second cavity 102 are arranged in the first direction X, the first switching port 101b and the second switching port 102b are both disposed on any one of the bottom wall 1111 and the cover plate 112 opposite to each other along the third direction Z, and the liquid inlet 101a and the liquid outlet 102a are both disposed on the side wall 1112 connecting the bottom wall 1111 and the cover plate 112, so that the opening directions of the liquid inlet 101a and the liquid outlet 102a intersect with the opening directions of the first switching port 101b and the second switching port 102b, which is beneficial to making the design of the current collector 10 more compact and reasonable.

As shown in fig. 9 and 10, in some alternative embodiments, in the third direction Z, the front projection of the first cavity 101 and the front projection of the second cavity 102 are overlapped, the cover plate 112 is disposed on one side of the housing body 111 along the first direction X, the side wall 1112 is provided with a first adapting opening 101b and a second adapting opening 102b, any one of the bottom wall 1111 and the cover plate 112 is provided with a liquid inlet 101a and a liquid outlet 102a, and the first direction X, the second direction Y intersect with the third direction Z.

In some examples, the liquid inlet 101a and the liquid outlet 102a are both disposed on the bottom wall 1111, the side wall 1112 is provided with a first transfer port 101b and a second transfer port 102b, the bottom wall 1111 is disposed along the first direction X near the heat exchange member 20, in some examples, the liquid inlet 101a and the liquid outlet 102a are both disposed on the cover plate 112, the side wall 1112 is provided with a first transfer port 101b and a second transfer port 102b, the cover plate 112 is disposed along the first direction X near the heat exchange member 20, and by this way, the opening directions of the liquid inlet 101a and the liquid outlet 102a intersect with the opening directions of the first transfer port 101b and the second transfer port 102b, so as to prevent the heat exchange member 20 connected with the liquid inlet 101a and the liquid outlet 102a from interfering with the first transfer port 101b and the second transfer port 102 b.

In the thermal management device 100 provided in an embodiment of the present application, the first cavity 101 and the second cavity 102 are arranged at intervals in the third direction Z, the first switching port 101b and the second switching port 102b are both disposed on the side wall 1112 connecting the bottom wall 1111 and the cover plate 112, and the liquid inlet 101a and the liquid outlet 102a are both disposed on any one of the bottom wall 1111 and the cover plate 112 opposite to each other along the first direction X, so that the opening directions of the liquid inlet 101a and the liquid outlet 102a intersect with the opening directions of the first switching port 101b and the second switching port 102b, which is beneficial to making the design of the current collector 10 more compact and reasonable.

In some alternative embodiments, the number of heat exchange members 20 is two or more, and the number of liquid inlets 101a and liquid outlets 102a is two or more.

The number of the heat exchanging members 20 may be two or three, but of course, more may be provided, and accordingly, the number of the liquid inlets 101a is the same as the number of the heat exchanging members 20, and the number of the liquid outlets 102a is the same as the number of the heat exchanging members 20.

According to the heat management device 100 provided by the embodiment of the application, the heat exchange elements 20 are arranged in two or more ways, so that the heat management efficiency of the heat management device 100 is improved, and the two or more liquid inlets 101a and the liquid outlets 102a are arranged on one current collector 10 to be communicated with the two or more heat exchange elements 20, so that the occupied space of the current collector 10 is reduced, the assembly is facilitated, and the cost is reduced. In some alternative embodiments, two or more liquid outlets 102a are located between two or more liquid inlets 101a along the second direction Y.

The two or more liquid outlets 102a being located between the two or more liquid inlets 101a along the second direction Y is understood to mean that in the second direction Y, the two or more liquid outlets 102a are adjacently disposed, and the outermost liquid outlet 102a is adjacently disposed with the liquid inlet 101a, that is, the second cavity 102 is at least partially surrounded by the first cavity 101, such that the second cavity 102 is provided with portions of the first cavity 101 on both sides of the second direction Y.

By this arrangement, in the thermal management device 100 according to the embodiment of the present application, the number of the first cavities 101 and the second cavities 102 of the current collector 10 can be set to one, and only one partition 12 is required to be provided to ensure that the number of the first cavities 101 and the second cavities 102 can be set to one, so that the current collector 10 can be communicated with two or more heat exchange elements 20, and the structure of the current collector 10 is simple, and meanwhile, the processing cost and the material cost can be reduced.

According to the thermal management device 100 provided by the embodiment of the application, the liquid inlets 101a are distributed on two sides of all the liquid outlets 102a along the second direction Y, so that each heat exchange piece 20 is conveniently communicated with the first cavity 101 and the second cavity 102 respectively, the occupied space of the current collector 10 is improved, and the cost is saved.

In some alternative embodiments, the first chamber 101 includes a first subchamber 1011, a second subchamber 1012, and a third subchamber 1013 in communication, with the second chamber 102 being located between the first subchamber 1011 and the third subchamber 1013, and the housing 11 having at least one fluid inlet 101a in communication with the first subchamber 1011 and having at least one fluid inlet 101a in communication with the third subchamber 1013.

The heat management device 100 provided by the embodiment of the application can meet the condition that the current collector 10 is communicated with more than two heat exchange pieces 20, is beneficial to improving the heat management efficiency of the heat management device 100, and is convenient to process and manufacture.

As shown in fig. 7 and 8, the first subchamber 1011 and the third subchamber 1013 extend along the first direction X and are spaced apart along the second direction Y, the second subchamber 1012 extends along the second direction Y and is connected between the first subchamber 1011 and the third subchamber 1013, and the second chamber 102 is located between the first subchamber 1011 and the third subchamber 1013, and in the first direction X, the front projection of the first chamber 101 and the front projection of the second subchamber 1012 overlap.

Alternatively, the orthographic projection of the first interface 101b in the third direction Z may fall into the first subchamber 1011, also into the third subchamber 1013, and of course into the second subchamber 1012.

As shown in fig. 9 and 10, the first subchamber 1011 and the third subchamber 1013 extend along the third direction Z and are spaced apart along the second direction Y, the second subchamber 1012 extends along the second direction Y and is connected between the first subchamber 1011 and the third subchamber 1013, and the second chamber 102 is located between the first subchamber 1011 and the third subchamber 1013, and in the third direction Z, the orthographic projection of the first chamber 101 and the orthographic projection of the second subchamber 1012 overlap.

Alternatively, the orthographic projection of the first interface 101b in the third direction Z may fall into the first subchamber 1011 and also into the third subchamber 1013.

In some alternative embodiments, the heat exchange members 20 are arranged in pairs, the heat exchange members 20 arranged in pairs are symmetrically distributed along the second direction Y, the liquid inlets 101a and the liquid outlets 102a are arranged in pairs, and the liquid outlets 102a arranged in pairs are located between the liquid inlets 101a arranged in pairs along the second direction Y.

By the arrangement of the thermal management device 100 provided by the embodiment of the application, the heat management efficiency of the thermal management device 100 can be improved, the occupied space of the current collector 10 can be reduced, and the cost can be reduced.

Referring to fig. 5 and 8, in some alternative embodiments, each heat exchange channel 21 includes a first flow channel 211, a second flow channel 213, and a bent flow channel 212 connected between the first flow channel 211 and the second flow channel 213, the first flow channel 211 and the second flow channel 213 are spaced apart along the second direction Y, the first flow channel 211 communicates with the first cavity 101 through the liquid inlet 101a, and the second flow channel 213 communicates with the second cavity 102 through the liquid outlet 102 a.

The bending flow channel 212 is arranged in a bending way, the battery cell 200a is arranged on any side of the bending flow channel 212 along the third direction Z, and the length dimension of the whole bending flow channel 212 in the second direction Y is larger than the sum of the length dimensions of the first flow channel 211 and the second flow channel 213 in the second direction Y and is larger than the length dimension of the current collector 10 in the second direction Y, so that the size of the current collector 10 is reduced, the occupied space of the current collector 10 is reduced, and the cost is reduced.

The bending flow channel 212 can be bent for multiple times to increase the length dimension of the whole body in the second direction Y, so that the battery cell 200a can be covered more comprehensively, and heat exchange with the battery cell 200a can be performed.

When the number of heat exchange pieces 20 is set to one, the bending flow channel 212 is bent m times, and when the number of heat exchange pieces 20 is set to two, the bending flow channel 212 is bent n times, wherein m < n, that is, the more the number of heat exchange pieces 20 is set, the fewer the number of times the bending flow channel 212 is bent, so as to ensure that the corresponding heat exchange area with the battery cell 200a is ensured.

In the thermal management device 100 according to an embodiment of the present application, the heat exchange channels 21 are configured to include the first flow channels 211, the bent flow channels 212 and the second flow channels 213, so as to facilitate the communication with the current collector 10, and improve the thermal management efficiency.

Referring to fig. 7 and 9, in some alternative embodiments, the current collector 10 further includes a connection tube set connected to the housing 11, where the connection tube set includes an inlet tube 31 and an outlet tube 32, the inlet tube 31 communicates with the first cavity 101 through a first switching port 101b, and the outlet tube 32 communicates with the second cavity 102 through a second switching port 102 b.

The heat exchange medium can enter the first cavity 101 through the first conversion port 101b from the inlet pipe 31, and the heat exchange medium in the second cavity 102 can flow out through the outlet pipe 32, and is convenient to enter and exit the current collector 10 through the connecting pipe group, so that the effectiveness of the heat management device 100 for heat management of the battery cell 200a is ensured.

Alternatively, the inlet pipe 31 and the outlet pipe 32 may be straight pipe structures, and of course, may also be bent pipe structures, which may be specifically set according to actual requirements.

In some examples, as shown in fig. 7, the cover plate 112 may be integrally provided with the inlet pipe 31 and the outlet pipe 32, and the cover plate 112 and the inlet pipe 31 and the outlet pipe 32 are die-cast to facilitate reducing the failure risk, thereby improving the reliability of the thermal management device 100, and in other examples, the side wall 1112 of the housing body 111 may be integrally provided with the inlet pipe 31 and the outlet pipe 32, and the housing body 111 and the inlet pipe 31 and the outlet pipe 32 are die-cast to facilitate reducing the failure risk, thereby improving the reliability of the thermal management device 100.

In some alternative embodiments, as shown in fig. 6, the first adapter 101b and the second adapter 102b may be holes on the same plane with the housing 11, the inlet tube 31 may be inserted into the housing 11 through the first adapter 101b, and correspondingly, the outlet tube 32 may be inserted into the housing 11 through the second adapter 102b to ensure communication between the connection tube set and the current collector 10, where of course, the inlet tube 31 may be connected to the housing 11 around the periphery of the first adapter 101b, and the outlet tube 32 may be connected to the housing 11 around the periphery of the second adapter 102b to ensure communication between the connection tube set and the current collector 10.

As shown in fig. 9, in some alternative embodiments, the current collector 10 further includes a third protrusion protruding around the first adapter 101b and a fourth protrusion protruding around the second adapter 102b, and the third protrusion and the fourth protrusion may be provided separately from the housing 11, and of course, the third protrusion and the fourth protrusion may also be formed by extending the housing 11, the inlet pipe 31 is connected to the third protrusion in a plugging manner, and the outlet pipe 32 is connected to the fourth protrusion in a plugging manner, so as to ensure communication between the connection pipe group and the first cavity 101 and the second cavity 102.

In some alternative embodiments, current collector 10 further includes a connecting bracket 40 connected to housing 11. By providing the connection bracket 40, the thermal management device 100 is conveniently assembled with the case.

Alternatively, the number of the brackets 40 may be one or two, but may be plural, and the specific number may be set according to the structural size and the requirement of the current collector 10.

Illustratively, the number of the brackets 40 is two, and in the second direction Y, the brackets 40 are spaced from the connecting tube group, so that the arrangement is reasonable, and stress concentration is reduced.

The heat management device 100 according to one embodiment of the present application includes a current collector 10 and a heat exchange member 20, where the current collector 10 includes a housing 11 and a partition member 12, the housing 11 has a current collecting space, the housing 11 includes a housing body 111 and a cover plate 112, the cover plate 112 is fixedly connected to the housing body 111 and encloses the housing body 111 to form the current collecting space, the partition member 12 is connected between the housing body 111 and the cover plate 112 and separates the current collecting space to form a first cavity 101 and a second cavity 102, the partition member 12 and the housing body 111 are integrated, the housing 11 has a liquid inlet 101a communicating with the first cavity 101 and a first transfer port 101b, A liquid outlet 102a communicating with the second chamber 102, and a second adapter 102b. The first chamber 101 is disposed around at least a portion of the second chamber 102. The casing body 111 includes a bottom wall 1111 and a side wall 1112 surrounding the bottom wall 1111, the bottom wall 1111 is opposite to the cover plate 112 and connected through the side wall 1112, the partition 12 is connected between the bottom wall 1111, the side wall 1112 and the cover plate 112, wherein in the first direction X, the front projection of the first cavity 101 overlaps the front projection of the second cavity 102, the cover plate 112 is disposed on one side of the casing body 111 along the third direction Z, any one of the bottom wall 1111 and the cover plate 112 is provided with a first adapting port 101b and a second adapting port 102b, and the side wall 1112 is provided with a liquid inlet 101a and a liquid outlet 102a; Or in the third direction Z, the front projection of the first cavity 101 and the front projection of the second cavity 102 are overlapped, the cover plate 112 is disposed on one side of the shell body 111 along the first direction X, the side wall 1112 is provided with a first adapting port 101b and a second adapting port 102b, and any one of the bottom wall 1111 and the cover plate 112 is provided with a liquid inlet 101a and a liquid outlet 102a. The first chamber 101 includes a first subchamber 1011, a second subchamber 1012, and a third subchamber 1013 that are sequentially communicated, and the second chamber 102 is positioned between the first subchamber 1011 and the third subchamber 1013, and the housing 11 has at least one liquid inlet 101a that is in communication with the first subchamber 1011 and at least one liquid inlet 101a that is in communication with the third subchamber 1013. The heat exchange member 20 has a heat exchange passage 21, and the heat exchange passage 21 communicates with the first chamber 101 through a liquid inlet 101a and communicates with the second chamber 102 through a liquid outlet 102 a. The heat exchange member 20 is disposed on one side of the current collector 10 along the first direction X, and is disposed opposite to the liquid inlet 101a and the liquid outlet 102a along the first direction X, where the liquid inlet 101a and the liquid outlet 102a are disposed side by side along the second direction Y. The heat exchange pieces 20 are arranged in pairs, the heat exchange pieces 20 arranged in pairs are symmetrically distributed along the second direction Y, the liquid inlets 101a and the liquid outlets 102a are arranged in pairs, and the liquid outlets 102a arranged in pairs are located between the liquid inlets 101a arranged in pairs along the second direction Y. Each heat exchange channel 21 comprises a first flow channel 211, a second flow channel 213 and a bent flow channel 212 connected between the first flow channel 211 and the second flow channel 213, wherein the first flow channel 211 and the second flow channel 213 are distributed at intervals along the second direction Y, the first flow channel 211 is communicated with the first cavity 101 through a liquid inlet 101a, and the second flow channel 213 is communicated with the second cavity 102 through a liquid outlet 102 a. The current collector 10 further includes a connection tube group connected to the housing 11, the connection tube group including an inlet tube 31 and an outlet tube 32, the inlet tube 31 being in communication with the first chamber 101 through a first transfer port 101b, the outlet tube 32 being in communication with the second chamber 102 through a second transfer port 102 b. current collector 10 further includes a connection bracket 40 connected to housing 11.

In another aspect, a battery is provided according to an embodiment of the present application, including the thermal management device 100 described above.

In yet another aspect, an electrical device according to the present application includes a battery as described above for providing electrical energy.

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 (15)

1. A thermal management device, comprising:

The current collector comprises a shell and a partition piece, wherein the shell is provided with a current collecting space, the partition piece is connected with the shell and divides the current collecting space into a first cavity and a second cavity, the first cavity is arranged around at least part of the second cavity, and the shell is provided with a liquid inlet and a first transfer port which are communicated with the first cavity, and a liquid outlet and a second transfer port which are communicated with the second cavity;

The heat exchange piece is provided with a heat exchange channel, and the heat exchange channel is communicated with the first cavity through the liquid inlet and is communicated with the second cavity through the liquid outlet.

2. The thermal management device of claim 1, wherein the housing comprises a housing body and a cover plate fixedly connected to the housing body and enclosing the header space, the separator being connected between the housing body and the cover plate.

3. The thermal management device of claim 2, wherein the divider is a unitary structure with either of the housing body and the cover plate.

4. The thermal management device of claim 2, wherein the heat exchange member is disposed on a side of the current collector along a first direction, the liquid inlet and the liquid outlet are disposed side-by-side along a second direction, and the first direction intersects the second direction.

5. The thermal management apparatus of claim 4, wherein the housing body comprises a bottom wall and a side wall surrounding the bottom wall, the bottom wall is disposed opposite to the cover plate and connected through the side wall, the partition is connected between the bottom wall, the side wall and the cover plate, the liquid inlet and the liquid outlet are disposed on any one of the side wall, the bottom wall and the cover plate, and the first transfer port and the second transfer port are disposed on any one of the side wall, the bottom wall and the cover plate.

6. The thermal management device of claim 5, wherein in the first direction, the front projection of the first cavity overlaps the front projection of the second cavity, the cover plate is disposed on one side of the housing body along a third direction, either one of the bottom wall and the cover plate is provided with the first transfer port and the second transfer port, the side wall is provided with the liquid inlet and the liquid outlet, and the first direction, the second direction and the third direction intersect.

7. The thermal management device of claim 5, wherein in a third direction, the front projection of the first cavity overlaps the front projection of the second cavity, the cover plate is disposed on a side of the housing body along the first direction, the side wall is provided with the first transfer port and the second transfer port, any one of the bottom wall and the cover plate is provided with the liquid inlet and the liquid outlet, and the first direction, the second direction and the third direction intersect.

8. The thermal management apparatus of claim 4, wherein the number of heat exchanging elements is two or more, and the number of liquid inlets and the number of liquid outlets are two or more.

9. The thermal management apparatus of claim 8, wherein two or more of said liquid outlets are located between two or more of said liquid inlets along said second direction.

10. The thermal management device of claim 8, wherein the first chamber comprises a first subchamber, a second subchamber, and a third subchamber in communication, the second chamber being located between the first subchamber and the third subchamber, the housing having at least one of the fluid inlets in communication with the first subchamber and having at least one of the fluid inlets in communication with the third subchamber.

11. The thermal management apparatus of claim 8, wherein the heat exchanging elements are arranged in pairs, the heat exchanging elements arranged in pairs are symmetrically distributed along the second direction, the liquid inlets and the liquid outlets are arranged in pairs, and the liquid outlets arranged in pairs are located between the liquid inlets arranged in pairs along the second direction.

12. The thermal management device of claim 8, wherein each of the heat exchange channels comprises a first flow passage, a second flow passage, and a serpentine flow passage connected between the first flow passage and the second flow passage, the first flow passage and the second flow passage being spaced apart along the second direction, the first flow passage being in communication with the first chamber through the liquid inlet and the second flow passage being in communication with the second chamber through the liquid outlet.

13. The thermal management device of claim 1, wherein the current collector further comprises a connection tube set connected to the housing, the connection tube set comprising an inlet tube in communication with the first cavity through the first swivel port and an outlet tube in communication with the second cavity through the second swivel port; and/or, the current collector further comprises a connecting bracket connected with the shell.

14. A battery comprising a thermal management device according to any one of claims 1 to 13.

15. An electrical device comprising a battery as claimed in claim 14 for providing electrical energy.