CN220934186U - Cooling assembly, battery and power utilization device - Google Patents

Abstract

The application provides a cooling assembly, a battery and an electric device, and belongs to the technical field of batteries. The cooling assembly comprises a plate body, wherein a flow channel for fluid flow is formed in the plate body, the plate body is divided into a plurality of parts in a plane perpendicular to the thickness direction Z of the plate body, and the ratio of the volume occupied by the flow channel in one part to the volume occupied by the part in the plurality of parts is different from the ratio of the volume occupied by the flow channel in the other part to the volume occupied by the other part in the plurality of parts.

Description

Cooling assembly, battery and power utilization device

Technical Field

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

Background

In a power battery system, the battery works to generate excessive heat, and the heat is transferred by the way that the battery or the module is in contact with the surface of a cooling assembly (such as a water cooling plate), and finally is taken away by a cooling medium passing through an internal flow channel of a device.

However, most of the battery or module in contact with the surface of the cooling module has uneven surface temperature, and a series of problems such as poor heat dissipation uniformity of the cooling module are often caused when the cooling module is used for heat dissipation.

Disclosure of utility model

In view of the above, the present application provides a cooling module, a battery and an electric device, which aim to alleviate, mitigate or eliminate the problem of poor heat dissipation balance of the cooling module.

In a first aspect, the application provides a cooling assembly comprising a plate body in which flow channels for fluid flow are formed, wherein the plate body is divided into a plurality of sections in a plane perpendicular to the thickness direction Z of the plate body, the ratio of the volume occupied by the flow channels in one section to the volume of that section being different from the ratio of the volume occupied by the flow channels in another section to the volume of that section.

In the technical scheme of the embodiment of the application, the plate body of the cooling assembly is divided into a plurality of parts, and the flow channel ratio in one part of the plurality of parts is set to be different from the flow channel ratio in the other part of the plurality of parts, so that the cooling assembly can set different cooling medium flow rates according to the temperature rise difference of the different parts, and the possibility of poor heat dissipation balance of the cooling assembly caused by uneven temperature of the battery in contact is reduced.

In some embodiments, the plate body has a top side and a bottom side, the top side and the bottom side being opposite to each other in a width direction Y of the plate body, and the plurality of portions being arranged in sequence in the width direction Y and extending in a length direction X of the plate body. By dividing the plate body in a manner parallel to the top side and the bottom side of the plate body, on one hand, the dividing difficulty can be reduced, and on the other hand, the space in each divided part of the plate body is more square, so that the arrangement of the flow channels is facilitated.

In some embodiments, the ratio of the volume occupied by the flow channels in the portion of the plurality of portions closer to the top side to the volume of the portion closer to the top side is greater than the ratio of the volume occupied by the flow channels in the portion of the plurality of portions closer to the bottom side to the volume of the portion closer to the bottom side. Because the temperature rise of the battery cells or the battery modules contacted with the surface of the cooling assembly gradually increases from the bottom to the top, the design can provide larger cooling medium flow for the part which is closer to the top side in the parts with higher temperature, thereby improving the service efficiency of the cooling assembly and realizing balanced heat dissipation.

In some embodiments, the plurality of sections includes a first section, a second section, and a third section arranged in order from the top side to the bottom side, wherein a ratio of a volume occupied by the flow channels in the first section to a volume of the first section is equal to or greater than 75%, a ratio of a volume occupied by the flow channels in the second section to a volume of the second section is equal to or greater than 50%, and a ratio of a volume occupied by the flow channels in the third section to a volume of the third section is equal to or greater than 30%. By arranging the three parts which are sequentially arranged and the numerical range of the corresponding flow channel duty ratio, the service efficiency of the cooling assembly can be further improved, and balanced heat dissipation is realized.

In some embodiments, a width of a portion of the plurality of portions closest to the top side in the width direction Y is at least one quarter of a width of the plate body. By setting the width range of the portion closest to the top side among the plurality of portions, this allows a larger flow passage ratio for the portion closest to the top side among the plurality of portions having the highest temperature.

In some embodiments, a plurality of inlets and/or a plurality of outlets are provided on at least one of the two end faces of the plate body. In such a design, a plurality of flow passages through which the cooling medium flows are allowed to be provided, thereby enhancing the cooling effect.

In some embodiments, at least one inlet and at least one outlet are provided on one end face of the plate body at a portion of the plurality of portions closest to the top side, the at least one inlet and the at least one outlet belonging to different flow channels within the portion closest to the top side, respectively, such that the fluid flow directions in the different flow channels are opposite. In such a design, there are a plurality of staggered flow passages at the portion closest to the top side among the plurality of portions, thereby enhancing the cooling effect.

In some embodiments, the first flow channel and the second flow channel are formed inside the plate body, the first inlet communicating with the first flow channel and the second outlet communicating with the second flow channel are formed on the end surface of the plate body at a portion closest to the top side, the second inlet communicating with the second flow channel is formed on the end surface of the plate body at another portion, and the first outlet communicating with the first flow channel is formed on the end surface of the plate body at another portion. In such a design, there are at least two staggered flow channels at the portion of the plurality of portions closest to the top side, thereby enhancing the cooling effect.

In a second aspect, the present application provides a battery comprising at least one battery cell or battery module. The battery also includes at least one cooling assembly of the above embodiments that is thermally coupled to at least one battery cell or battery module.

Such a battery can provide advantages as described above with respect to the cooling assembly and will not be described in detail for brevity.

In a third aspect, the present application provides an electrical device comprising: the battery in the above embodiment is used for supplying electric power.

Such an electrical device can provide advantages as described above with respect to the cooling assembly and will not be described in detail for brevity.

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 accompanying drawings. In the drawings:

FIG. 1 is a schematic diagram of a cooling assembly according to some embodiments of the application;

FIG. 2 is a schematic structural view of a cooling assembly according to some embodiments of the present application, wherein a plurality of flow channels are shown;

Fig. 3 is a schematic view of a battery according to some embodiments of the present application;

fig. 4 is a schematic structural view of a vehicle according to some embodiments of the present application.

Reference numerals in the specific embodiments are as follows:

a length direction X, a width direction Y, and a thickness direction Z;

a vehicle 1000;

A battery 600;

A motor 300, a controller 200;

The cooling assembly 100, the plate 101, the first inlet 103, the first outlet 104, the second inlet 105, the second outlet 106, the first portion 111, the second portion 112, the third portion 113,

And a battery module 61.

Detailed Description

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

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

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

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

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

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

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

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

Currently, battery systems employ cooling assemblies (e.g., water cooled plates) to remove excess heat generated by the operation of the battery through a cooling medium.

Most of the battery cells or battery modules in contact with the surface of the cooling assembly have uneven surface temperatures, and therefore, heat dissipation using the cooling assembly tends to result in poor heat dissipation uniformity.

In order to alleviate, mitigate or eliminate the problem of poor heat dissipation uniformity caused by heat dissipation from the battery cells or the battery modules using the cooling assembly, the plate body of the cooling assembly may be divided into a plurality of portions, and the flow channel ratio in one of the portions may be set to be different from the flow channel ratio in the other of the portions. Because of the different flow channel duty ratio, different cooling medium flow rates can be set for different temperature rises of the battery cells or the battery modules which are contacted with different part surfaces of the plate body.

Based on the above, a cooling module is designed to alleviate, mitigate or eliminate the problem of poor heat dissipation uniformity of the cooling module due to temperature unevenness of the battery in contact by dividing the plate body of the cooling module into a plurality of portions and setting the flow channel ratio in one of the portions to be different from the flow channel ratio in the other of the portions.

The cooling assembly disclosed by the embodiment of the application can be used in a battery. The power supply system of the power utilization device can be composed by using the cooling assembly provided with the cooling assembly disclosed by the application.

Referring to fig. 1, fig. 1 is a schematic diagram of a cooling assembly 100 according to some embodiments of the application. The cooling module 100 includes a plate body 101, and a flow passage through which a fluid flows is formed in the plate body 101. The plate body 101 is divided into a plurality of portions 111, 112, 113 in a plane perpendicular to the thickness direction Z of the plate body 101. The ratio of the volume occupied by the flow channels in one of the sections 111, 112, 113 to the volume of that section is different from the ratio of the volume occupied by the flow channels in the other of the sections 111, 112, 113 to the volume of that other section.

As shown in the figure, the X direction in the figure is the longitudinal direction of the plate body 101, the Y direction is the width direction of the plate body 101, and the Z direction is the thickness direction of the plate body 101.

Herein, the term "flow channel duty cycle" may refer to the ratio of the volume occupied by the flow channel in one of the portions of the plate body 101 to the volume of that portion. Since the thickness of the plate body 101 is generally relatively small and constant, the term "flow channel duty cycle" may also be considered as the ratio of the area occupied by the flow channels in one of the portions of the plate body 101 to the area of that portion, in accordance with some embodiments of the present application.

According to some embodiments of the application, the ratio of the volume occupied by the flow channels within each section to the volume of that section may be different for each section of the plurality of regions.

According to some embodiments of the present application, the division of the plate body 101 in a plane perpendicular to the thickness direction Z of the plate body 101 may be a division in a direction parallel to the length direction X of the plate body 101, a division inclined to the length direction X of the plate body 101 (e.g., at an angle to the length direction X of the plate body 101), or a division of an irregular trend such as a meandering division, etc., which the present application is not limited to.

According to some embodiments of the application, the fluid may be a cooling medium. For example, the cooling medium may include a liquid and/or a gas.

The plate body of the cooling assembly is divided into a plurality of parts, and the flow channel ratio in one part of the plurality of parts is set to be different from the flow channel ratio in the other part of the plurality of parts, so that the cooling assembly can set different cooling medium flow rates according to different temperature rises of the different parts, thereby reducing the possibility of poor heat dissipation balance of the cooling assembly caused by uneven temperature of the battery in contact.

With continued reference to fig. 1. The plate body 101 has a top side and a bottom side which are opposite to each other in a width direction Y of the plate body 101 along which the plurality of portions 111, 112, 113 are sequentially arranged and extend in a length direction X of the plate body 101.

In the example shown in fig. 1, the plate body 101 is rectangular in shape and has a top side and a bottom side opposite to each other. The plurality of portions 111, 112, 113 are arranged in order along the width direction Y and extend along the length direction X of the plate body 101, meaning that the division of the plate body 101 in a plane perpendicular to the thickness direction Z of the plate body 101 is a division in a direction parallel to the length direction X of the plate body 101.

By dividing the plate body in a manner parallel to the top and bottom sides of the plate body, on the one hand, the difficulty of division can be reduced (due to the relative easiness of straight line division), and on the other hand, the space in each divided part of the plate body is more square (each divided part is also rectangular, as shown in fig. 1), thereby facilitating the arrangement of the flow channels.

With continued reference to fig. 1. The ratio of the volume occupied by the flow channels in the portion of the plurality of portions 111, 112, 113 closer to the top side to the volume of the portion closer to the top side is greater than the ratio of the volume occupied by the flow channels in the portion of the plurality of portions 111, 112, 113 closer to the bottom side to the volume of the portion closer to the bottom side.

In the example shown in fig. 1, the portion of the plurality of portions 111, 112, 113 closer to the top side is the portion 111 having a flow channel ratio larger than that in the portion 112 or 113 of the plurality of portions 111, 112, 113 closer to the bottom side. Further, since portion 112 is closer to the top side than portion 113, its flow channel ratio is larger than that in portion 113.

Because the temperature rise of the battery cells or the battery modules contacted with the surface of the cooling assembly gradually increases from the bottom to the top, the design can provide larger cooling medium flow for the part which is closer to the top side in the parts with higher temperature, thereby improving the service efficiency of the cooling assembly and realizing balanced heat dissipation.

With continued reference to fig. 1. The plurality of portions 111, 112, 113 includes a first portion 111, a second portion 112, and a third portion 113 arranged in order from the top side to the bottom side. The ratio of the volume occupied by the flow passage in the first portion 111 to the volume of the first portion 111 is 75% or more. The ratio of the volume occupied by the flow passage in the second portion 112 to the volume of the second portion 112 is 50% or more. The ratio of the volume occupied by the flow passage in the third portion 113 to the volume of the third portion 113 is 30% or more.

In the example shown in fig. 1, the first portion 111 is a portion closer to the top side of the plurality of portions 111, 112, 113, the third portion 113 is a portion closer to the bottom side of the plurality of portions 111, 112, 113, and the second portion 112 is located between the first portion 111 and the third portion 113.

Although three sections are shown in fig. 1, it is understood that the plurality of sections may further include a fourth section, a fifth section, etc. located after the third section 113 in order from the top side to the bottom side, to which the present application is not limited.

By arranging the three parts which are sequentially arranged and the numerical range of the corresponding flow channel duty ratio, the service efficiency of the cooling assembly can be further improved, and balanced heat dissipation is realized.

With continued reference to fig. 1. The width of the portion 111 closest to the top side among the plurality of portions 111, 112, 113 in the width direction Y is at least one quarter of the width of the plate body 101.

In the example shown in fig. 1, the width of the portion 111 in the width direction Y is at least one quarter of the width of the plate body 101. It can be seen that the ratio of the volume occupied by the portion 111 to the total volume of the plate body 101 is 25% or more.

By setting the width range of the portion closest to the top side of the plurality of portions, this allows a larger flow channel duty ratio for the portion closest to the top side of the plurality of portions having the highest temperature, thereby improving the use efficiency of the cooling assembly and achieving uniform heat dissipation.

With further reference to fig. 2. Fig. 2 is a schematic diagram of a cooling assembly 100 according to some embodiments of the application, wherein a plurality of flow channels are shown. A plurality of inlets 103, 105 and/or a plurality of outlets 104, 106 are provided on at least one of the two end faces of the plate body 101.

In the example shown in fig. 2, the plate body 101 has two end faces opposite to each other. Although only the left end face of the plate body 101 is shown in fig. 2 as being provided with a plurality of inlets 103, 105 and/or a plurality of outlets 104, 106, it is understood that the right end face of the plate body 101 may also be provided with a plurality of inlets 103, 105 and/or a plurality of outlets 104, 106, as the application is not limited in this regard.

According to some embodiments of the application, the plurality of inlets 103, 105 are configured to introduce a fluid, such as a cooling medium, into the flow channel and the plurality of outlets 104, 106 are configured to direct the fluid, such as the cooling medium, out of the flow channel.

By providing a plurality of inlets and/or a plurality of outlets, a plurality of flow passages through which a cooling medium flows are allowed to be provided, thereby enhancing the cooling effect.

With continued reference to fig. 2. At least one inlet 103, 105 and at least one outlet 104, 106 are provided on one end face of the plate body 101 at the portion 111 closest to the top side of the plurality of portions 111, 112, 113, the at least one inlet 103, 105 and the at least one outlet 104, 106 belonging to different flow channels within the portion 111 closest to the top side, respectively, such that the fluid flow directions in the different flow channels are opposite.

In the example shown in fig. 2, an inlet 103 and an outlet 106 are provided at a portion 111 closest to the top side on the left end face of the plate body 101 such that a flow passage connected to the inlet 103 and a flow passage connected to the outlet 106 in the portion 111 are separated into different flow passages, and the directions of fluid flows in the two flow passages are exactly opposite. Wherein the direction of fluid flow in the flow channel is indicated by the dashed arrows in fig. 2.

As shown in fig. 2, the inlet of the flow channel connected to the outlet 106 is an inlet 105, and the inlet 105 is located at a portion 112 and is lower in height than the outlet 106. Further, the outlet of the flow passage connected to the inlet 103 is an outlet 104, and the outlet 104 is located at a portion 113 and is lower in height than the inlet 103. Fluid enters from an inlet 103 located higher in elevation, flows downward due to gravity, and exits from an outlet 104 located lower in elevation. In contrast, fluid enters from the inlet 105 which is lower in height, and fluid can only flow upward in the case of the flow channel which is lower in height, and finally flows out from the outlet 106 which is higher in height. Thus, fluid flows slowly in a lower inlet version than in a higher inlet version, resulting in a better cooling effect.

In such a design, there are a plurality of alternate flow channels (opposite fluid flow directions of the two flow channels within portion 111 as shown in fig. 2) at the portion closest to the top side of the plurality of portions, thereby enhancing the cooling effect.

With continued reference to fig. 2. A first flow passage and a second flow passage are formed inside the plate body 101, a first inlet 103 communicating with the first flow passage and a second outlet 106 communicating with the second flow passage are formed at a portion 111 closest to the top side on the end face of the plate body 101, a second inlet 105 communicating with the second flow passage is formed at another portion 112 on the end face of the plate body 101, and a first outlet 104 communicating with the first flow passage is formed at another portion 113 on the end face of the plate body 101.

In the example shown in fig. 2, a first flow passage and a second flow passage are provided at the portion 111 closest to the top side, the number of which is greater than the number of flow passages at the portion 112 and the portion 113.

Although specific inlet and outlet placement locations and flow path placements or routes are shown in fig. 2, it is to be understood that inlet and outlet placement locations and flow path placements or routes may be arbitrary, and the application is not limited in this regard.

In such a design, there are at least two staggered flow channels (the fluid flow directions of the different flow channels are different) at the portion closest to the top side among the plurality of portions, thereby enhancing the cooling effect.

According to some embodiments of the present application, referring to fig. 1 and 2, the present application provides a cooling assembly including a plate body having a top side and a bottom side opposite to each other in a width direction Y of the plate body, a flow passage for fluid flow is formed in the plate body, wherein the plate body is divided into a plurality of portions in a plane perpendicular to a thickness direction Z of the plate body, the plurality of portions being sequentially arranged in the width direction Y and extending in a length direction X of the plate body. Further, a ratio of a volume occupied by the flow channel in a portion closer to the top side of the plurality of portions to a volume of the portion is larger than a ratio of a volume occupied by the flow channel in a portion closer to the bottom side of the plurality of portions to a volume of the portion.

Referring to fig. 3, fig. 3 is a schematic diagram illustrating a battery 600 according to some embodiments of the application. The battery 600 includes at least one battery cell or battery module 61. In one example, the at least one battery cell or battery module 61 may be electrically connected to each other. The battery 600 also includes at least one cooling assembly 100, the cooling assembly 100 being thermally coupled to at least one battery cell or battery module 61 to cool the at least one battery cell or battery module 61.

In some embodiments, the battery module 61 includes a case and a battery cell housed in the case. Wherein, the box is used for providing accommodation space for battery monomer, and the box can adopt multiple structure. In some embodiments, the housing may be a variety of shapes, such as a cylinder, a cuboid, and the like.

In some embodiments, each battery cell may be a secondary battery or a primary battery; but not limited to, lithium sulfur batteries, sodium ion batteries, or magnesium ion batteries. The battery cells may be cylindrical, flat, rectangular, or otherwise shaped.

In some embodiments, each battery module 61 may be composed of a plurality of battery cells connected in series or parallel or a series-parallel connection, which refers to both series and parallel connection of the plurality of battery cells. In the battery 600, the battery modules 61 may be plural, and the plural battery modules 61 may be connected in series or in parallel or in series-parallel. The battery 600 may further include other structures, for example, the battery 600 may further include a bus member for making electrical connection between the plurality of battery modules 61.

The term "thermally coupled" herein essentially refers to a direct or indirect connection between two devices, wherein heat is transferred from one device to the other.

In the example shown in fig. 3, one cooling assembly 100 is disposed at each of front and rear sides of a plurality of battery cells or battery modules 61 connected in series, wherein the cooling assembly 100 is thermally coupled (e.g., abutted) with a surface of the battery cells or battery modules 61 to remove excessive heat generated by the operation of the battery modules 61. The specific construction and function of the cooling assembly 100 has been specifically set forth above and, for brevity, will not be repeated here.

In some embodiments, the power consuming device may include the battery 600 of the above embodiments, with the battery 600 being used to provide electrical power. Examples of electrical devices may include, but are not limited to, electric cars, boats, spacecraft, etc. Among other things, spacecraft may include airplanes, rockets, space shuttles, spacecraft, and the like.

For convenience of description, an electric device according to an embodiment of the present application will be described as an example of the vehicle 1000.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a vehicle 1000 according to some embodiments of the application. The vehicle 1000 may be a fuel oil vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or a range-extended vehicle. The battery 600 is provided in the interior of the vehicle 1000, and the battery 600 may be provided at the bottom or the head or the tail of the vehicle 1000. In some embodiments, battery 600 may be used to power vehicle 1000, for example, battery 600 may be used as an operating power source for vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, the controller 200 being configured to control the battery 600 to power the motor 300, for example, for operating power requirements during start-up, navigation, and travel of the vehicle 1000.

In some embodiments of the application, battery 600 may not only serve as an operating power source for vehicle 1000, but may also serve as a driving power source for vehicle 1000, instead of or in part instead of fuel oil or natural gas, to provide driving power for vehicle 1000.

The powered device is powered using the battery 600 of the above-described embodiment that includes the cooling assembly 100. The specific construction and function of the cooling assembly 100 in the battery 600 has been specifically set forth above.

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 (10)

1. A cooling assembly (100) comprising a plate body (101), in which plate body (101) a flow channel is formed for a fluid flow, wherein the plate body (101) is divided into a plurality of sections (111, 112, 113) in a plane perpendicular to a thickness direction (Z) of the plate body (101), a ratio of a volume occupied by the flow channel in one section of the plurality of sections (111, 112, 113) to a volume occupied by the flow channel in another section of the plurality of sections (111, 112, 113) being different from a ratio of the volume occupied by the flow channel in the other section.

2. The cooling assembly (100) of claim 1, wherein the plate body (101) has a top side and a bottom side, the top side and the bottom side being opposite to each other in a width direction (Y) of the plate body (101), the plurality of portions (111, 112, 113) being arranged in sequence along the width direction (Y) and extending along a length direction (X) of the plate body (101).

3. The cooling assembly (100) of claim 2, wherein a ratio of a volume occupied by the flow channels in the portion of the plurality of portions (111, 112, 113) closer to the top side to a volume of the portion closer to the top side is greater than a ratio of a volume occupied by the flow channels in the portion of the plurality of portions (111, 112, 113) closer to the bottom side to a volume of the portion closer to the bottom side.

4. A cooling assembly (100) according to claim 2 or 3, wherein the plurality of portions (111, 112, 113) comprises a first portion (111), a second portion (112) and a third portion (113) arranged in this order from the top side to the bottom side, wherein a ratio of a volume occupied by the flow passage in the first portion (111) to a volume of the first portion (111) is 75% or more, a ratio of a volume occupied by the flow passage in the second portion (112) to a volume of the second portion (112) is 50% or more, and a ratio of a volume occupied by the flow passage in the third portion (113) to a volume of the third portion (113) is 30% or more.

5. A cooling assembly (100) according to claim 2 or 3, wherein the width of the portion (111) of the plurality of portions (111, 112, 113) closest to the top side in the width direction (Y) is at least one quarter of the width of the plate body (101).

6. A cooling assembly (100) according to any one of claims 1-3, wherein a plurality of inlets (103, 105) and/or a plurality of outlets (104, 106) are provided on at least one of the two end faces of the plate body (101).

7. A cooling assembly (100) according to claim 2 or 3, wherein at least one inlet (103, 105) and at least one outlet (104, 106) are provided on one end face of the plate body (101) at a portion (111) of the plurality of portions (111, 112, 113) closest to the top side, the at least one inlet (103, 105) and the at least one outlet (104, 106) belonging to different flow channels within the portion (111) closest to the top side, respectively, such that the fluid flow directions in the different flow channels are opposite.

8. The cooling module (100) according to claim 7, wherein a first flow passage and a second flow passage are formed inside the plate body (101), a first inlet (103) communicating with the first flow passage and a second outlet (106) communicating with the second flow passage are formed at the portion (111) closest to the top side on the end face of the plate body (101), a second inlet (105) communicating with the second flow passage is formed at another portion (112) on the end face of the plate body (101), and a first outlet (104) communicating with the first flow passage is formed at another portion (113) on the end face of the plate body (101).

9. A battery (600), characterized by comprising:

at least one battery cell or battery module (61);

The cooling assembly (100) according to at least one of claims 1-8, the cooling assembly (100) being thermally coupled with the at least one battery cell or battery module (61).

10. An electrical consumer device (1000), comprising a battery (600) according to claim 9, the battery (600) being adapted to provide electrical energy.