Thermal management components, batteries and electrical devices

Abstract

A thermal management component (300), a battery, and an electrical device are provided. The thermal management component (300) includes a set of first heat exchange surfaces (310), including a plurality of first heat exchange surfaces (310); the plurality of first heat exchange surfaces (310) are used to cooperate with a plurality of outer battery cells (13) located on one side of the thermal management component (300) for temperature regulation; each first heat exchange surface (310) is used to cooperate with one outer battery cell (13) for temperature regulation; a set of second edge heat exchange surfaces (320), including a plurality of second edge heat exchange surfaces (320); the plurality of second edge heat exchange surfaces The surface (320) is used to cooperate with a plurality of intermediate battery cells (14) located on the other side of the thermal management component (300) for temperature regulation; each second edge heat exchange surface (320) is used to cooperate with an intermediate battery cell (14) for temperature regulation; the heat exchange area of ​​each first heat exchange surface (310) is a first heat exchange area S1, and the heat exchange area of ​​each second edge heat exchange surface (320) is a second heat exchange area S2. The first heat exchange area S1 is larger than the second heat exchange area S2, which can enhance the battery space adaptability.

Description

Technical Field

[0001] This application relates to the field of batteries, and more specifically, to a thermal management component, a battery, and an electrical device. Background Technology

[0002] The power battery is one of the core components of an electric vehicle. Its charging and discharging are based on electrochemical reactions, so the battery's safety, performance, and lifespan are closely related to temperature. With the rapid development of electric vehicle technology, the requirements for the specific energy, charging and discharging rate, and lifespan of power batteries are becoming increasingly stringent, making battery thermal management increasingly important.

[0003] Because electric vehicle battery packs consist of a large number of battery cells arranged in series and parallel in a multi-layered array, temperature differences between the cells can cause inconsistencies in battery conditions, thus affecting the overall performance of the battery pack. Therefore, it is necessary to find ways to reduce the maximum temperature difference between the battery cells. In some cases, thermal management components are used to cool the battery cells. These components are typically hollow, plate-like structures that house a flowable heat exchange fluid to cool the battery cells. In multi-layered battery cell arrangements, one side of each layer of cells is paired with one side of a liquid cooling plate for heat exchange, or each layer of cells has a liquid cooling plate on both sides. Multiple thermal management components are combined with multiple layers of cells to form a battery, resulting in a large overall volume. In such cases, improving the battery's spatial adaptability to meet the needs of different usage scenarios is a pressing technical problem in battery technology. Summary of the Invention

[0004] This application provides a thermal management component, a battery, an electrical device, a manufacturing method, and an apparatus that can improve the space adaptability of the battery.

[0005] According to a first aspect of this application, a thermal management component is provided, including a set of first heat exchange surfaces and a set of second edge heat exchange surfaces. The set of first heat exchange surfaces includes a plurality of first heat exchange surfaces; the plurality of first heat exchange surfaces are used to cooperate with a plurality of outer battery cells located on one side of the thermal management component for temperature regulation; each first heat exchange surface is used to cooperate with one outer battery cell for temperature regulation. The set of second edge heat exchange surfaces includes a plurality of second edge heat exchange surfaces; the plurality of second edge heat exchange surfaces are used to cooperate with a plurality of intermediate battery cells located on the other side of the thermal management component for temperature regulation; each second edge heat exchange surface is used to cooperate with one intermediate battery cell for temperature regulation. The heat exchange area of ​​each first heat exchange surface is a first heat exchange area S1, and the heat exchange area of ​​each second edge heat exchange surface is a second heat exchange area S2, wherein the first heat exchange area S1 is larger than the second heat exchange area S2.

[0006] In this embodiment, the thermal management component has two sets of heat exchange surfaces with different heat exchange areas, which can be flexibly combined with the battery cells. This allows for the placement of two thermal management components on both sides of a single layer of intermediate battery cells. Each intermediate battery cell in the first layer exchanges heat with two smaller second edge heat exchange surfaces of the two thermal management components; while each outer battery cell in the first layer exchanges heat with a larger first heat exchange surface of one thermal management component, achieving essentially the same heat exchange effect between the intermediate and outer battery cells. The thermal management component of this embodiment can meet the requirements for uniform heat exchange in batteries with both odd and even layers of battery cells, and allows for more flexible adjustment of the battery thickness. Therefore, it enhances the battery's spatial adaptability and improves the flexibility of battery pack assembly.

[0007] In some embodiments, a first heat exchange channel is formed within the thermal management component, which provides a movement path for the heat exchange fluid. The thermal management component includes a first side plate and a second side plate, the second side plate being disposed opposite to the first side plate, and the first heat exchange channel being formed between the first side plate and the second side plate. A set of first heat exchange surfaces is formed on the first side plate, and the heat exchange fluid regulates the temperature of the outer battery cell through the first heat exchange surfaces. A set of second edge heat exchange surfaces is formed on the second side plate, and the heat exchange fluid also regulates the temperature of the middle battery cell through the second edge heat exchange surfaces.

[0008] In this embodiment, two sets of heat exchange surfaces with different heat exchange areas are respectively formed on the first side plate and the second side plate, and a first heat exchange flow channel is formed between the first side plate and the second side plate. The first heat exchange flow channel is used to provide a movement path for the heat exchange fluid. In this way, the heat exchange fluid can exchange heat with the battery cell through the first heat exchange surface and the second edge heat exchange surface. Through the circulation of the heat exchange fluid, the continuous temperature regulation of the battery cell can be achieved.

[0009] In some embodiments, the first side plate has a first side flow channel, and the portion of the first side flow channel that mates with a plurality of outer battery cells forms a plurality of first heat exchange surfaces; the second side plate has a second side flow channel, and the portion of the second side flow channel that mates with a plurality of middle battery cells forms a plurality of second edge heat exchange surfaces; the first side flow channel and the second side flow channel cooperate to form a first heat exchange flow channel.

[0010] In this embodiment, the first side plate and the second side plate are respectively formed with side flow channels, and a first heat exchange surface and a second edge heat exchange surface are respectively formed on the side flow channels. The first side flow channel and the second side flow channel are combined to form a first heat exchange channel. In this way, the first heat exchange surface and the second edge heat exchange surface can exchange heat with the heat exchange fluid in the common first heat exchange channel. By setting the difference in heat exchange area, the first heat exchange surface has a better heat exchange effect than the second edge heat exchange surface.

[0011] In some embodiments, there is one first side channel, and the portion of the first side channel that mates with an outer battery cell forms a first heat exchange surface, and the first heat exchange area S1 is the surface area of ​​the first heat exchange surface; the second side channel includes a plurality of second side branch channels arranged in parallel along the flow direction perpendicular to the heat exchange fluid, and the portion of each second side branch channel that mates with an intermediate battery cell forms a second edge heat exchange surface; each second edge heat exchange surface includes a plurality of second edge heat exchange surfaces; the second heat exchange area S2 is the sum of the surface areas of the plurality of second edge heat exchange surfaces.

[0012] In this embodiment, there is one first side flow channel, and the second side flow channel is divided into multiple second side sub-flow channels. The second heat exchange area is the sum of the surface areas of the second edge heat exchange surfaces of the multiple second side sub-flow channels. By adjusting the surface area and number of the second edge heat exchange surfaces, not only can the second heat exchange area be smaller than the first heat exchange area, but the ratio between the second heat exchange area S2 and the first heat exchange area S1 can also be precisely adjusted. According to actual needs, an appropriate ratio between the second heat exchange area S2 and the first heat exchange area S1 can be matched to achieve more accurate heat exchange control and improve the uniformity of heat exchange.

[0013] In some embodiments, the first side channel is interconnected with a plurality of second side branch channels to form a heat exchange channel.

[0014] In this embodiment, by setting the first side flow channel and multiple second side branch channels to be interconnected, the heat exchange fluid in the heat exchange channel can simultaneously exchange heat with the first side plate and the second side plate, which simplifies the design of the heat exchange channel and facilitates the manufacturing of the thermal management components.

[0015] In some embodiments, each first heat exchange surface has a first heat exchange width W1, and each second edge heat exchange surface has a second heat exchange width W2, wherein the first heat exchange width W1 is greater than the second heat exchange width W2; wherein the first heat exchange width W1 is the width of the first heat exchange surface; the second heat exchange width W2 is the sum of the widths of the plurality of second edge heat exchange surfaces; and the ratio of the second heat exchange width W2 to the first heat exchange width W1 is between 0.1 and 0.9.

[0016] In this embodiment, the ratio of the first heat exchange area S1 to the second heat exchange area S2 is adjusted by adjusting the ratio of the first heat exchange width W1 of the first heat exchange surface to the second heat exchange width W2 of the second edge heat exchange surface. The adjustment of the second heat exchange width W2 of the second edge heat exchange surface is achieved by adjusting the width and number of the second edge heat exchange surfaces. The ratio of the first heat exchange area S1 to the second heat exchange area S2 can be easily adjusted by controlling the ratio of the first heat exchange width W1 to the second heat exchange width W2.

[0017] In some embodiments, the first side channel includes a plurality of first side branch channels arranged in parallel along the flow direction perpendicular to the heat exchange fluid, and the portion of each first side branch channel that mates with an outer battery cell forms a first heat exchange surface; each first heat exchange surface includes a plurality of first heat exchange surfaces; the first heat exchange area S1 is the sum of the surface areas of the plurality of first heat exchange surfaces; the second side channel includes a plurality of second side branch channels arranged in parallel along the flow direction perpendicular to the heat exchange fluid, and the portion of each second side branch channel that mates with an intermediate battery cell forms a second edge heat exchange surface; each second edge heat exchange surface includes a plurality of second edge heat exchange surfaces; the second heat exchange area S2 is the sum of the surface areas of the plurality of second edge heat exchange surfaces.

[0018] In this embodiment, the first side channel is divided into multiple first side sub-channels, and the first heat exchange area is the sum of the surface areas of the multiple first heat exchange sub-channels; the second side channel is divided into multiple second side sub-channels, and the second heat exchange area is the sum of the surface areas of the second edge heat exchange sub-channels of the multiple second side sub-channels; by adjusting the surface areas and number of the first heat exchange sub-channels and the second edge heat exchange sub-channels, not only can the second heat exchange area S2 be smaller than the first heat exchange area S1, but the ratio between the second heat exchange area S2 and the first heat exchange area S1 can also be precisely adjusted. According to actual needs, an appropriate ratio between the second heat exchange area S2 and the first heat exchange area S1 can be matched to achieve more accurate heat exchange control.

[0019] In some embodiments, the first heat exchange channel includes a plurality of sub-channels arranged in parallel along the flow direction perpendicular to the heat exchange fluid. Each sub-channel includes at least one first side branch channel and at least one second side branch channel, and the first side branch channel and the second side branch channel constituting a sub-channel are interconnected.

[0020] In this embodiment, by setting a portion of the first side flow channel and multiple second side flow channels to be interconnected, the first heat exchange flow channel is divided into multiple sub-flow channels. The heat exchange fluid in each sub-flow channel can simultaneously exchange heat with the first side plate and the second side plate, which simplifies the design of the first heat exchange flow channel and facilitates the manufacturing of thermal management components.

[0021] In some embodiments, each first heat exchange surface has a first heat exchange width W1, and each second edge heat exchange surface has a second heat exchange width W2, wherein the first heat exchange width W1 is greater than the second heat exchange width W2; wherein the first heat exchange width W1 is the sum of the widths of the plurality of first heat exchange surfaces, and the second heat exchange width W2 is the sum of the widths of the plurality of second edge heat exchange surfaces; the ratio of the second heat exchange width W2 to the first heat exchange width W1 is between 0.1 and 0.9.

[0022] In this embodiment, the ratio of the first heat exchange area to the second heat exchange area is adjusted by changing the ratio of the first heat exchange width W1 of the first heat exchange surface to the second heat exchange width W2 of the second edge heat exchange surface. The adjustment of the first heat exchange width W1 of the first heat exchange surface is achieved by adjusting the width and number of the first heat exchange surfaces, and the adjustment of the second heat exchange width W2 of the second edge heat exchange surface is achieved by adjusting the width and number of the second edge heat exchange surfaces. By controlling the ratio W2 of the first and second heat exchange widths, the ratio of the first heat exchange area S1 to the second heat exchange area S2 can be easily adjusted.

[0023] In some embodiments, a first turbulence section is further included, which is disposed in a first side channel and / or a second side channel, and is used to generate turbulence in the heat exchange fluid flowing through the first side channel and / or the second side channel.

[0024] In this embodiment, by providing a first turbulence section in the first side channel and / or the second side channel, the heat exchange fluid flowing through the first side channel and / or the second side channel can be turbulent, so that the temperature of the heat exchange fluid is uniform and the temperature regulation of the battery cell is more uniform.

[0025] In some embodiments, the first turbulence section is disposed in the portion of the first side channel that does not cooperate with the outer battery cell and / or the first turbulence section is disposed in the portion of the second side channel that does not cooperate with the middle battery cell.

[0026] In this embodiment, if the first turbulent flow section is located at the part that cooperates with the battery cell, the first turbulent flow section may occupy the surface area of ​​the first heat exchange surface and / or the second edge heat exchange surface, thereby affecting the heat exchange effect. If the first turbulent flow section is located at the part that does not cooperate with the battery cell, the first turbulent flow section will not affect the first heat exchange area S1 and the second heat exchange area S2, and can form turbulence at the downstream first heat exchange surface and / or the second edge heat exchange surface, making the temperature distribution of the heat exchange fluid more uniform, improving the heat transfer coefficient, strengthening the heat exchange between the heat exchange fluid and the battery cell, and improving the heat exchange efficiency.

[0027] In some embodiments, the ratio of the second heat exchange area S2 to the first heat exchange area S1 is between 0.1 and 0.9.

[0028] In this embodiment, the ratio of the second heat exchange area S2 to the first heat exchange area S1 is between 0.1 and 0.9. The ratio of the second heat exchange area S2 to the first heat exchange area S1 can be adjusted according to the different heat exchange performance requirements of the battery cells on both sides of the thermal management component, thereby meeting the heat exchange performance requirements of different battery cells.

[0029] In some embodiments, each first heat exchange surface is arranged along the width direction of the main heat management component, and a group of first heat exchange surfaces are arranged along the length direction of the heat management component; and each second edge heat exchange surface is arranged along the width direction of the heat management component, and a group of second edge heat exchange surfaces are arranged along the length direction of the heat management component.

[0030] In this embodiment, the first heat exchange surface and the second edge heat exchange surface are arranged along the width direction of the thermal management component, so that the outer battery cells and the middle battery cells are arranged on the first side plate and the second side plate of the thermal management component in such a way that the length direction is consistent with the width direction of the thermal management component; a set of first heat exchange surfaces and a set of second edge heat exchange surfaces are both arranged along the length direction of the thermal management component, so that multiple rows of outer battery cells and middle battery cells can be arranged in the length direction of the thermal management component, realizing heat exchange of multiple outer battery cells and multiple middle battery cells by one thermal management component.

[0031] In a second aspect, a battery is provided, comprising at least three layers of battery cells and a temperature regulation system. The at least three layers of battery cells include two outer layers of battery cells and at least one intermediate layer of battery cells, with the intermediate layer located between the two outer layers. Each outer layer and each intermediate layer includes multiple battery cells. The temperature regulation system is used for heat exchange with the outer battery cells and the intermediate battery cells. The temperature regulation system includes two sets of first heat exchange surfaces and multiple sets of second heat exchange surfaces, each set of first heat exchange surfaces including multiple first heat exchange surfaces, and each set of second heat exchange surfaces including multiple second heat exchange surfaces. The first and second heat exchange surfaces can exchange heat with a heat exchange fluid inside the temperature regulation system. The temperature regulation system is configured such that: a set of sides of each outer battery cell layer cooperates with a set of first heat exchange surfaces for temperature regulation; wherein one side of each outer battery cell layer cooperates with a first heat exchange surface for temperature regulation, and each first heat exchange surface has a first heat exchange area S1; each middle battery cell layer is disposed between two sets of second heat exchange surfaces, and the two opposite sets of sides of each middle battery cell layer cooperate with an adjacent set of second heat exchange surfaces for temperature regulation; the two opposite sets of sides of each middle battery cell layer cooperate with an adjacent second heat exchange surface for temperature regulation; the first heat exchange area S1 is larger than the heat exchange area of ​​the second heat exchange surface.

[0032] In this embodiment, the temperature control system includes two sets of first heat exchange surfaces and multiple sets of second heat exchange surfaces to exchange heat with two outer battery cells and at least one intermediate battery cell. One side of each outer battery cell exchanges heat with one set of first heat exchange surfaces, meaning each outer battery cell exchanges heat with the temperature control system through a first heat exchange area S1. The two opposite sides of each intermediate battery cell exchange heat with an adjacent set of second heat exchange surfaces, meaning each intermediate battery cell exchanges heat with the temperature control system through the heat exchange area of ​​two second heat exchange surfaces. This allows for the construction of batteries with both odd and even numbers of battery cells, enabling more flexible design of the number and thickness of battery layers and providing better spatial adaptability. Furthermore, since the first heat exchange area is larger than the heat exchange area of ​​the second heat exchange surface, the cooling effect of the intermediate and outer battery cells can be freely adjusted. By changing the ratio of the heat exchange area of ​​the first heat exchange area to that of the second heat exchange surface, the outer battery cell and the middle battery cell can achieve a more similar cooling effect, reduce the temperature difference between battery cells, make the battery state consistent, and improve the overall performance of the battery.

[0033] In some embodiments, the ratio of the heat exchange area of ​​the second heat exchange surface to the first heat exchange area S1 is between 0.1 and 0.9. In this embodiment, the ratio of the heat exchange area of ​​the two second heat exchange surfaces to the first heat exchange area is between 0.2 and 1.8, which allows the cooling area of ​​the middle battery unit and the outer battery unit to be freely adjusted between 0.2 and 1.8.

[0034] In some embodiments, the battery cell has three layers, including two outer battery cells and one intermediate battery cell; the temperature regulation system includes two edge thermal management components, each edge thermal management component having a first heat exchange channel formed therein, the heat exchange channel being used to provide a movement path for the heat exchange fluid; the edge thermal management components include a first side plate and a second side plate arranged opposite to each other; a set of first heat exchange surfaces is formed on the first side plate; multiple sets of second heat exchange surfaces include two sets of second edge heat exchange surfaces, each set of second edge heat exchange surfaces including multiple second edge heat exchange surfaces; a set of second edge heat exchange surfaces is formed on the second side plates of the two edge thermal management components respectively; each second edge heat exchange surface has a second heat exchange area S2; the two second side plates of the two edge thermal management components are adjacent, and the two first side plates are opposite to each other; an outer battery cell is provided on the first side plates of the two edge thermal management components respectively, one side of each outer battery cell cooperating with a corresponding first heat exchange surface; an intermediate battery cell is provided between the two edge thermal management components, the two opposite sides of each intermediate battery cell cooperating with a second edge heat exchange surface of the two edge thermal management components respectively.

[0035] In this embodiment, the temperature control system includes two edge thermal management components, with a set of first heat exchange surfaces formed on the first side plate of each edge thermal management component; multiple sets of second heat exchange surfaces include two sets of second edge heat exchange surfaces, with a set of second edge heat exchange surfaces formed on the second side plates of the two edge thermal management components respectively. Two outer battery cells respectively mate with a set of first heat exchange surfaces of the two edge thermal management components, and a middle battery cell is arranged between the two edge thermal management components, with each middle battery cell's two opposite sides mate with a second edge heat exchange surface of each of the two edge thermal management components. Heat exchange of three battery cells is achieved through two edge thermal management components, reducing the number of thermal management components while enabling an odd number of battery cell layers, resulting in a more compact structure, reduced overall thickness, and better spatial adaptability.

[0036] In some embodiments, the ratio of the second heat exchange area S2 to the first heat exchange area S1 is between 0.1 and 0.9. In this embodiment, the ratio of the two second heat exchange areas 2S2 to one first heat exchange area S1 is between 0.2 and 1.8, which allows the cooling area of ​​the middle battery unit and the outer battery unit to be freely adjusted between 0.2 and 1.8.

[0037] In some embodiments, the battery cell has four or more layers, including two outer battery cells and at least two middle battery cells; the temperature regulation system includes two edge thermal management components, each edge thermal management component including an edge thermal management component, and a first heat exchange channel formed within the edge thermal management component, the first heat exchange channel being used to provide a movement path for the heat exchange fluid; the edge thermal management component includes a first side plate and a second side plate arranged opposite to each other; a set of first heat exchange surfaces is formed on the first side plate; multiple sets of second heat exchange surfaces include two sets of second edge heat exchange surfaces, each set of second edge heat exchange surfaces including multiple second edge heat exchange surfaces; and forms are respectively formed on the second side plates of the two edge thermal management components. A set of second edge heat exchange surfaces; each second edge heat exchange surface has a second heat exchange area S2; the temperature control system further includes at least one intermediate heat management component, each intermediate heat management component including an intermediate heat management component, a second heat exchange flow channel formed within the intermediate heat management component, the second heat exchange flow channel also serving to provide a movement path for the heat exchange fluid; each intermediate heat management component includes two third side plates located on opposite sides; the multiple sets of second heat exchange surfaces further include multiple sets of second intermediate heat exchange surfaces, wherein a set of second intermediate heat exchange surfaces is formed on each third side plate, each set of second intermediate heat exchange surfaces including multiple second intermediate heat exchange surfaces; each second intermediate heat exchange surface has a third The heat exchange area is S3; the first heat exchange area S1 is larger than the third heat exchange area S3; the number of intermediate thermal management components is the number of battery cell layers minus 3; wherein, at least one intermediate thermal management component is disposed between two edge thermal management components; the two second side plates of the two edge thermal management components are respectively adjacent to a third side plate of an intermediate thermal management component; the two first side plates of the two edge thermal management components are opposite to each other; an outer battery cell is respectively disposed on the first side plate of the two edge thermal management components, and each outer battery cell cooperates with a first heat exchange surface of the corresponding first side plate; wherein, each edge thermal management component is provided with a space between it and an adjacent intermediate thermal management component. A single intermediate battery cell; in a single intermediate battery cell that mates with an edge thermal management component, one side of each intermediate battery cell mates with a second edge heat exchange surface of a second side of an edge thermal management component, and the other side of each intermediate battery cell mates with a second intermediate heat exchange surface of a third side plate of an intermediate thermal management component, and / or a single intermediate battery cell is further provided between each pair of adjacent intermediate thermal management components; in a single intermediate battery cell that mates with intermediate thermal management components on both sides, the two sides of each intermediate battery cell mate with a second intermediate heat exchange surface of a third side plate of two opposing intermediate thermal management components, respectively.

[0038] In this embodiment, the battery cell has four or more layers, including two outer battery cells and at least two intermediate battery cells. The temperature control system includes two first thermal management units and at least one second thermal management unit. A set of second intermediate heat exchange surfaces is formed on each of the two third side plates of the second thermal management unit. These second intermediate heat exchange surfaces are also considered second heat exchange surfaces and have a third heat exchange area S3, which is smaller than the first heat exchange area S1. Thus, the first heat exchange surface of the first thermal management unit is used for unilateral cooling of the outer battery cells. An adjacent layer of intermediate battery cells exchanges heat through the second edge heat exchange surface of the second side plate of the edge thermal management unit and the second intermediate heat exchange surface of the third side plate of one intermediate thermal management unit. The two sides of the remaining intermediate battery cells cooperate with the second intermediate heat exchange surfaces of the opposing third side plates of the two intermediate thermal management units on both sides for heat exchange. This allows for a battery arrangement structure with any number of intermediate battery cells plus two outer battery cells. The number of thermal management units is one less than the number of battery cell layers, reducing the number of thermal management units, resulting in a more compact structure, reduced overall thickness, and better spatial adaptability.

[0039] In some embodiments, the ratio of the third heat exchange area S3 to the first heat exchange area S1 is between 0.1 and 0.9, and / or the ratio of the sum of the second heat exchange area S2 and the third heat exchange area S3 to the first heat exchange area S1 is between 0.2 and 1.8.

[0040] In this embodiment, the ratio 2S2 / S1 of the two second heat exchange areas S2 to the first heat exchange area S1 is between 0.2 and 1.8, and / or the ratio of the sum of the second heat exchange areas S2 and the third heat exchange area S3 to the first heat exchange area S1 is between 0.2 and 1.8. This allows the ratio of the total heat exchange area of ​​the temperature regulation system exchanging heat with an intermediate battery cell to the heat exchange area of ​​an outer battery cell to vary between 0.2 and 1.8. By adjusting this ratio, the outer battery cell and the intermediate battery cell can achieve a more similar cooling effect, reducing the temperature difference between battery cells, making the battery state consistent, and improving the overall performance of the battery.

[0041] In some embodiments, a first side plate of the edge thermal management component is formed with a first side channel, and a plurality of first heat exchange surfaces are formed at the portion of the first side channel that mates with an outer layer of battery cells; a second side plate of the edge thermal management component is formed with a second side channel, and a plurality of second edge heat exchange surfaces are formed at the portion of the second side channel that mates with an intermediate layer of battery cells; the first side channel and the second side channel are combined to form a first heat exchange channel.

[0042] In this embodiment, the first side plate and the second side plate of the edge heat management component are respectively formed with side channels, and a first heat exchange surface and a second edge heat exchange surface are formed on the side channels. The first side channel and the second side channel are combined to form a first heat exchange channel. In this way, the first heat exchange surface and the second edge heat exchange surface can exchange heat with the heat exchange fluid in the common first heat exchange channel, and the difference in heat exchange area makes the first heat exchange surface have a better heat exchange effect than the second edge heat exchange surface.

[0043] In some embodiments, there is one first side channel, and the portion of the first side channel that mates with an outer battery cell forms a first heat exchange surface, and the first heat exchange area S1 is the surface area of ​​the first heat exchange surface; the second side channel includes a plurality of second side branch channels arranged in parallel along the flow direction perpendicular to the heat exchange fluid, and the portion of each second side branch channel that mates with an intermediate battery cell forms a second edge heat exchange surface; a second edge heat exchange surface includes a plurality of second edge heat exchange surfaces that mate with an intermediate battery cell; the second heat exchange area S2 is the sum of the surface areas of the plurality of second edge heat exchange surfaces.

[0044] In this embodiment, there is one first side flow channel, and the second side flow channel is divided into multiple second side sub-flow channels. The second heat exchange area is the sum of the surface areas of the second edge heat exchange surfaces of the multiple second side sub-flow channels. By adjusting the surface area and number of the second edge heat exchange surfaces, not only can the second heat exchange area be smaller than the first heat exchange area, but the ratio between the second heat exchange area and the first heat exchange area can also be precisely adjusted. According to actual needs, an appropriate ratio between the second heat exchange area and the first heat exchange area can be matched to achieve more accurate heat exchange control.

[0045] In some embodiments, the first side channel is interconnected with a plurality of second side branch channels to form a first heat exchange channel.

[0046] In this embodiment, by setting the first side flow channel and multiple second side branch channels to be interconnected, the heat exchange fluid in the first heat exchange channel can simultaneously exchange heat with the first side plate and the second side plate, which simplifies the design of the first heat exchange channel and facilitates the manufacturing of the edge heat management components.

[0047] In some embodiments, the first side channel includes a plurality of first side branch channels, each first side branch channel forming a first heat exchange surface with a portion cooperating with an outer battery cell; a first heat exchange surface includes a plurality of first heat exchange surfaces cooperating with an outer battery cell; the first heat exchange area S1 is the sum of the surface areas of the plurality of first heat exchange surfaces; the second side channel includes a plurality of second side branch channels spaced apart, each second side branch channel forming a second edge heat exchange surface with a portion cooperating with an intermediate battery cell; a second edge heat exchange surface includes a plurality of second edge heat exchange surfaces cooperating with an intermediate battery cell; the second heat exchange area S2 is the sum of the surface areas of the plurality of second edge heat exchange surfaces.

[0048] In some embodiments, each first heat exchange surface has a first heat exchange width W1, and each second edge heat exchange surface has a second heat exchange width W2, wherein the first heat exchange width W1 is greater than the second heat exchange width W2; wherein, the first heat exchange width W1 is the width of the portion of the first side channel that mates with an outer battery cell; the second heat exchange width W2 is the sum of the widths of the plurality of second edge heat exchange surfaces; and the ratio of the second heat exchange width W2 to the first heat exchange width W1 is between 0.1 and 0.9.

[0049] In this embodiment, the ratio of the first heat exchange area to the second heat exchange area is achieved by adjusting the ratio of the first heat exchange width W1 of the first heat exchange surface to the second heat exchange width W2 of the second edge heat exchange surface. The adjustment of the second heat exchange width W2 is achieved by adjusting the width and number of the second edge heat exchange surfaces. By controlling the ratio of the first heat exchange width W1 to the second heat exchange width W2, the ratio adjustment of the first heat exchange area S1 to the second heat exchange area S2 can be easily achieved.

[0050] In some embodiments, the first side channel includes a plurality of first side branch channels arranged in parallel along the flow direction perpendicular to the heat exchange fluid, and the portion of each first side branch channel that mates with an outer battery cell forms a first heat exchange surface; each first heat exchange surface includes a plurality of first heat exchange surfaces that mate with an outer battery cell; the first heat exchange area S1 is the sum of the surface areas of the plurality of first heat exchange surfaces; the second side channel includes a plurality of second side branch channels arranged in parallel along the flow direction perpendicular to the heat exchange fluid, and the portion of each second side branch channel that mates with an intermediate battery cell forms a second edge heat exchange surface; each second edge heat exchange surface includes a plurality of second edge heat exchange surfaces that mate with an intermediate battery cell; the second heat exchange area S2 is the sum of the surface areas of the plurality of second edge heat exchange surfaces.

[0051] In this embodiment, the first side channel is divided into multiple first side sub-channels, and the first heat exchange area S1 is the sum of the surface areas of the multiple first heat exchange sub-channels; the second side channel is divided into multiple second side sub-channels, and the second heat exchange area S2 is the sum of the surface areas of the second edge heat exchange sub-channels of the multiple second side sub-channels; by adjusting the surface areas and number of the first heat exchange sub-channels and the second edge heat exchange sub-channels, not only can the second heat exchange area S2 be smaller than the first heat exchange area S1, but the ratio between the second heat exchange area S2 and the first heat exchange area S1 can also be precisely adjusted. According to actual needs, an appropriate ratio between the second heat exchange area S2 and the first heat exchange area S1 can be matched to achieve more accurate heat exchange control.

[0052] In some embodiments, each first heat exchange surface has a first heat exchange width W1, and each second edge heat exchange surface has a second heat exchange width W2, wherein the first heat exchange width W1 is greater than the second heat exchange width W2; wherein the first heat exchange width W1 is the sum of the widths of the plurality of first heat exchange surfaces, and the second heat exchange width W2 is the sum of the widths of the plurality of second edge heat exchange surfaces; the ratio of the second heat exchange width W2 to the first heat exchange width W1 is between 0.1 and 0.9.

[0053] In this embodiment, the ratio of the first heat exchange area S1 to the second heat exchange area S2 is achieved by adjusting the ratio of the first heat exchange width W1 of the first heat exchange surface to the second heat exchange width W2 of the second edge heat exchange surface. The adjustment of the first heat exchange width W1 of the first heat exchange surface is achieved by adjusting the width and number of the first heat exchange surfaces, and the adjustment of the second heat exchange width W2 of the second edge heat exchange surface is achieved by adjusting the width and number of the second edge heat exchange surfaces. By controlling the ratio of the first heat exchange width W1 to the second heat exchange width W2, the ratio of the first heat exchange area S1 to the second heat exchange area S2 can be easily adjusted.

[0054] In some embodiments, the first heat exchange channel includes a plurality of first sub-channels arranged in parallel along the flow direction perpendicular to the heat exchange fluid. Each first sub-channel includes at least one first side branch channel and at least one second side branch channel, and the first side branch channel and the second side branch channel constituting a first sub-channel are interconnected.

[0055] In this embodiment, by setting the first side flow channel and multiple second side flow channels to be interconnected, the first heat exchange flow channel is divided into multiple flow channels. The heat exchange fluid in each flow channel can simultaneously exchange heat with the first side plate and the second side plate, which simplifies the design of the first heat exchange flow channel and facilitates the manufacturing of thermal management components.

[0056] In some embodiments, the edge thermal management component further includes a first turbulence section disposed in a first side channel and / or a second side channel, the first turbulence section being used to generate turbulence in the heat exchange fluid flowing through the first side channel and / or the second side channel.

[0057] In this embodiment, by providing a first turbulence section in the first side channel and / or the second side channel, the heat exchange fluid flowing through the first side channel and / or the second side channel can be turbulentized, thereby improving the heat exchange effect of the heat exchange fluid.

[0058] In some embodiments, the first turbulence section is disposed at the location in the first side channel where it does not cooperate with the outer battery cell and / or the first turbulence section is disposed at the location in the second side channel where it does not cooperate with the middle battery cell.

[0059] In this embodiment, if the first turbulent flow section is located at the part that cooperates with the battery cell, the first turbulent flow section may occupy the surface area of ​​the first heat exchange surface and / or the second edge heat exchange surface, thereby affecting the heat exchange effect. If the first turbulent flow section is located at the part that does not cooperate with the battery cell, the first turbulent flow section will not affect the first heat exchange area S1 and the second heat exchange area S2, and can form turbulence at the downstream first heat exchange surface and / or the second edge heat exchange surface, making the temperature distribution of the heat exchange fluid more uniform, improving the heat transfer coefficient, strengthening the heat exchange between the heat exchange fluid and the battery cell, and improving the heat exchange efficiency.

[0060] In some embodiments, each first heat exchange surface is distributed along the width direction of the edge heat management component, and each group of first heat exchange surfaces is arranged along the length direction of the edge heat management component; and each second edge heat exchange surface is distributed along the width direction of the edge heat management component, and a group of second edge heat exchange surfaces is arranged along the length direction of the first heat management component.

[0061] In this embodiment, the first heat exchange surface and the second edge heat exchange surface are distributed along the width direction of the edge thermal management component. Thus, the outer battery cells and the middle battery cells are arranged on the first and second side plates of the edge thermal management component in such a way that the length direction is consistent with the width direction of the edge thermal management component. Both a set of first heat exchange surfaces and a set of second edge heat exchange surfaces are arranged along the length direction of the edge thermal management component. Thus, multiple rows of outer battery cells and middle battery cells can be arranged along the length direction of the edge thermal management component, realizing heat exchange between one edge thermal management component and multiple outer battery cells and multiple middle battery cells.

[0062] In some embodiments, each third side plate of the intermediate thermal management component is formed with a third side flow channel, and the portion of each third side flow channel that mates with an intermediate battery cell forms a set of second intermediate heat exchange surfaces; the third side flow channels of two opposing third side plates are combined to form a second heat exchange flow channel.

[0063] In this embodiment, the two third side plates of the intermediate heat management component are respectively formed with third side channels, and the third side channels on both sides are combined to form a second heat exchange channel. In this way, the two second intermediate heat exchange surfaces can exchange heat with the heat exchange fluid in the common second heat exchange channel.

[0064] In some embodiments, the third side channel includes a plurality of third side branch channels arranged in parallel along the flow direction perpendicular to the heat exchange fluid, and the portion of each third side branch channel that cooperates with an intermediate battery cell forms a second intermediate heat exchange surface; each second intermediate heat exchange surface includes a plurality of second intermediate heat exchange surfaces that cooperate with an intermediate battery cell; the third heat exchange area S3 is the sum of the surface areas of the plurality of second intermediate heat exchange surfaces.

[0065] In this embodiment, the third side channel is divided into multiple third side sub-channels, and the third heat exchange area S3 is the sum of the surface areas of the second intermediate heat exchange surfaces of the multiple third side sub-channels. By adjusting the surface area and number of the second intermediate heat exchange surfaces, not only can the third heat exchange area S3 be smaller than the first heat exchange area S1, but the proportional relationship between the third heat exchange area S3 and the first heat exchange area S1, as well as with the second heat exchange area S2, can also be precisely adjusted. According to actual needs, an appropriate ratio between the sum of the second heat exchange area S2 and the third heat exchange area S3 and the first heat exchange area S1, as well as the ratio between the two third heat exchange areas S3 and the first heat exchange area S1, can be matched to achieve more accurate heat exchange control.

[0066] In some embodiments, the third thermal management component further includes a second turbulence section disposed in the third side channel, the second turbulence section being used to generate turbulence in the heat exchange fluid flowing through the third side channel.

[0067] In this embodiment, by providing a second turbulence section in the third side channel, the heat exchange fluid flowing through the third side channel can be turbulentized, thereby improving the heat exchange effect of the heat exchange fluid.

[0068] In some embodiments, the second turbulence section is disposed in the portion of the third side channel that does not cooperate with the intermediate battery cell.

[0069] In this embodiment, if the second turbulent flow section is located at the part that cooperates with the intermediate battery unit, the second turbulent flow section may occupy the surface area of ​​the second intermediate heat exchange surface, thereby affecting the heat exchange effect. If the second turbulent flow section is located at the part that does not cooperate with the intermediate battery unit, the second turbulent flow section will not affect the third heat exchange area S3, and can form turbulence at the downstream second intermediate heat exchange surface, thereby improving the heat exchange effect.

[0070] In some embodiments, each second intermediate heat exchange surface is arranged along the width direction of the intermediate heat management component, and a group of second intermediate heat exchange surfaces are arranged along the length direction of the intermediate heat management component.

[0071] In this embodiment, the second intermediate heat exchange surface is arranged along the width direction of the intermediate thermal management component, so that the intermediate battery cells are arranged on the third side plate of the intermediate thermal management component in such a way that the length direction is consistent with the width direction of the intermediate thermal management component; a set of second intermediate heat exchange surfaces are arranged along the length direction of the intermediate thermal management component, so that multiple rows of intermediate battery cells can be arranged in the length direction of the intermediate thermal management component, so that one intermediate thermal management component can exchange heat with two layers of intermediate battery cells on both sides.

[0072] Thirdly, an electrical device includes: the battery of the second aspect.

[0073] The thermal management components, batteries, and related electrical devices provided in this application can meet the requirements for uniform heat exchange in batteries with odd-numbered battery cells and batteries with even-numbered battery cells, and can adjust the thickness of the battery more flexibly, thus enhancing the spatial adaptability of the battery. Attached Figure Description

[0074] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0075] Figure 1 This is a schematic diagram of a battery structure in the prior art;

[0076] Figure 2 This is a schematic diagram of the AA cross-sectional structure of a thermal management component in the prior art.

[0077] Figure 3 This is a top view of the heat exchange area where a battery cell contacts a thermal management component in the prior art.

[0078] Figure 4 This is a schematic diagram of the heat exchange area where a battery cell contacts a thermal management component in the prior art.

[0079] Figure 5 This is a schematic diagram illustrating how two thermal management components in the prior art exchange heat with a middle layer of battery cells.

[0080] Figure 6 for Figure 5 A schematic diagram of the BB cross-section of the heat exchange area where the middle layer of battery cell contacts the thermal management component;

[0081] Figure 7 This is a schematic diagram of the structure of an edge thermal management component according to some embodiments of this application;

[0082] Figure 8This is a side view of a battery cell arranged on both sides of an edge thermal management component according to some embodiments of this application;

[0083] Figure 9 for Figure 8 A partially enlarged schematic diagram of part K of the heat exchange surface where the mid-edge thermal management component exchanges heat with the battery cell;

[0084] Figure 10 This is a partial enlarged view of the first side plate of the edge thermal management component in some embodiments of this application;

[0085] Figure 11 This is a partial top view of the first side plate of the edge thermal management component in some embodiments of this application;

[0086] Figure 12 for Figure 11 A partially enlarged schematic diagram of a segment of the first heat exchange surface 1 of the first side plate of the middle edge thermal management component;

[0087] Figure 13 This is a partially enlarged view of the second side plate of an edge thermal management component according to an embodiment of this application;

[0088] Figure 14 This is a partial top view of the second side plate of the edge thermal management component in some embodiments of this application;

[0089] Figure 15 for Figure 14 A partially enlarged schematic diagram of a segment of the second edge heat exchange surface 1 of the second side plate of the middle edge thermal management component;

[0090] Figure 16 for Figure 11 A schematic cross-sectional view of the edge thermal management component along CC is shown;

[0091] Figure 17 for Figure 11 The diagram shows a cross-sectional view of the edge thermal management component along DD;

[0092] Figure 18 for Figure 11 A CC cross-sectional view of the segmented phase heat exchange portion of the battery cell and the second edge heat exchange surface 1 of the edge thermal management component shown in the figure;

[0093] Figure 19 for Figure 11 The DD cross-sectional view of the segmented heat exchange portion of the battery cell and the first heat exchange surface 1 of the edge thermal management component shown in the figure;

[0094] Figure 20 This is a schematic diagram of a battery with a three-layer battery cell structure according to an embodiment of this application;

[0095] Figure 21 for Figure 20 A cross-sectional schematic diagram of the heat exchange section between the battery cell and the heat exchange surface of the thermal management component in the EE part.

[0096] Figure 22 for Figure 20 A cross-sectional schematic diagram of the heat exchange section between the battery cell and the heat exchange surface of the thermal management component in the FF part of the structure.

[0097] Figure 23 This is a perspective view of the combined structure of the thermal management component of a battery according to an embodiment of this application;

[0098] Figure 24 for Figure 23 A schematic diagram of the battery in the Y direction;

[0099] Figure 25 This is a schematic diagram of a battery with a four-layer battery cell structure according to an embodiment of this application;

[0100] Figure 26 for Figure 25 A cross-sectional schematic diagram of the heat exchange section between the battery cell and the heat exchange surface of the thermal management component in the GG part.

[0101] Figure 27 This is a schematic diagram of the structure of an intermediate thermal management component according to an embodiment of this application;

[0102] Figure 28 for Figure 27 The diagram shows a cross-sectional view of the intermediate thermal management component along LL.

[0103] Figure 29 for Figure 27 A schematic diagram of a segment of a second intermediate heat exchange surface 1 of the intermediate heat management component shown;

[0104] Figure 30 This is a schematic diagram of a battery with a five-layer battery cell structure according to an embodiment of this application;

[0105] Figure 31 for Figure 30 A cross-sectional schematic diagram of the heat exchange section between the battery cell and the heat exchange surface of the thermal management component in the HH section.

[0106] Figure 32 This is a schematic diagram of a battery using a cylindrical battery cell with a quadrilateral cross-section, according to one embodiment of this application.

[0107] Figure 33 This is a schematic diagram of a battery using a cylindrical battery cell with a hexagonal cross-section, according to one embodiment of this application.

[0108] Figure 34This is a schematic diagram of the structure of an electrical device according to another embodiment of this application. Detailed Implementation

[0109] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0110] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0111] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0112] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0113] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0114] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0115] In this application, the battery cell may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., and the embodiments of this application are not limited to these. The battery cell may be cylindrical, flat, cuboid, or other shapes, etc., and the embodiments of this application are not limited to these. Battery cells are generally divided into three types according to their packaging method: cylindrical battery cells, cuboid / square battery cells, and pouch battery cells, and the embodiments of this application are not limited to these.

[0116] The battery mentioned in the embodiments of this application refers to a single physical module comprising one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in this application may include a battery module or a battery pack. A battery generally includes a housing for encapsulating one or more battery cells. The housing prevents liquids or other foreign matter from affecting the charging or discharging of the battery cells.

[0117] In the development of battery technology, besides improving battery performance, lifespan and safety are also crucial issues. If a battery's lifespan doesn't reach the expected time, the maintenance and usage costs will be significant. If battery safety cannot be guaranteed, the battery will be unusable. One of the drawbacks of batteries is that their performance is greatly affected by temperature. Batteries need to operate within a certain temperature range; excessively low or high temperatures can cause irreversible damage, weakening battery performance and, in severe cases, causing internal short circuits or even thermal runaway, leading to serious accidents. Therefore, ensuring that batteries operate within a suitable temperature range is essential for guaranteeing their lifespan.

[0118] Compared to air cooling, existing liquid-cooled batteries have a more compact structure and better cooling performance. For example... Figures 1 to 4 As shown, taking a battery cell composed of cylindrical battery cells as an example, the cooling of the battery cell 10 is usually achieved by using a serpentine flat tube cooling plate 20. The upper and lower plates of the serpentine flat tube cooling plate 20 are completely separated to form a larger flow channel that can effectively cool the battery 10.

[0119] Figure 2 The diagram shows a schematic cross-sectional view (AA) of a prior art cooling plate 20. Multiple flow channels 201 are formed inside the cooling plate 20. The upper and lower surfaces 202 of the cooling plate 20 form heat exchange surfaces 200 for heat exchange with the battery cells. One side of each battery cell 20 contacts one side surface of the cooling plate for heat exchange. Figure 3 and Figure 4The diagram shows a schematic representation of the contact area between the heat exchange surface 200 of a prior art cooling plate 20 and the battery cell 20. The inventors of this application discovered... Figures 1 to 4 In this type of battery, a cooling plate is paired with two layers of battery cells. The number of battery cell layers can only be an even number, which severely limits the battery's thickness and space adaptability. If an odd number of battery cell layers were desired, one side of the cooling plate would not house any battery cells, resulting in waste. Alternatively, as... Figure 5 In the three-layer battery structure shown, the upper and lower battery cells only have one side that exchanges heat with the liquid cooling plate, while the middle battery cell exchanges heat with the liquid cooling plate on both its upper and lower sides. What is the cooling effect of the middle battery cell? Figure 6 As shown in the BB view (the heat exchange area of ​​the middle layer battery cell in contact with the liquid cooling plate is twice that of the upper and lower battery cells), it will be significantly stronger than the upper and lower battery cells (see reference). Figure 4 The cooling effect of the existing cooling plate 20 is insufficient, resulting in a large temperature difference between different layers of battery cells. This leads to inconsistent battery states and affects the overall performance of the battery. Therefore, the existing cooling plate 20 is not suitable for cooling odd-numbered battery cells.

[0120] Another existing battery structure (not shown in the figure) has liquid cooling plates with serpentine flat tubes on both sides of each battery cell layer, which can achieve a structure with any number of battery cell layers. However, the inventors of this application have found that in this method, one side of the two outermost liquid cooling plates does not support a battery cell, which is wasteful; and the number of liquid cooling plates is more than the number of battery cell layers, which increases the overall thickness of the battery.

[0121] In order to solve or at least partially solve the aforementioned problems and other potential problems of batteries in the prior art, the inventors of this application propose a thermal management component and battery that can realize the combination of arbitrary layers of battery cells, make each layer of battery cells uniformly cooled, and also save space, reduce thickness, and improve the spatial adaptability of the battery.

[0122] The technical solutions described in the embodiments of this application are applicable to various battery-powered devices, such as mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, electric vehicles, ships, and spacecraft. For example, spacecraft include airplanes, rockets, space shuttles, and spacecraft.

[0123] Figures 7 to 17 The structure of a thermal management component according to some embodiments of this application is shown in the figure.

[0124] like Figure 1As shown, the thermal management component mentioned in the embodiments of this application is used to contain heat exchange fluid for temperature regulation of multiple battery cells. The heat exchange fluid can be a liquid or a gas, and temperature regulation refers to heating or cooling the multiple battery cells. When cooling or lowering the battery cells, the thermal management component contains cooling heat exchange fluid to reduce the temperature of the multiple battery cells. In this case, the thermal management component can also be called a cooling component, cooling system, or cooling plate, etc., and the heat exchange fluid it contains can be called a cooling medium or cooling heat exchange fluid; more specifically, it can be called heat exchange fluid or cooling gas. Alternatively, the thermal management component can also be used to heat the multiple battery cells to raise their temperature; this embodiment of the application is not limited to this. Optionally, the heat exchange fluid can be circulating to achieve better temperature regulation. Optionally, the heat exchange fluid can be water, a mixture of water and ethylene glycol, air, or a refrigerant, etc.

[0125] The corrugated shape of the thermal management component mentioned in the embodiments of this application is a surface shape formed by connecting concave and convex surfaces to mate with the surface of the battery cell and accommodate the battery cell. It should be noted that since the battery cell can be cylindrical, flat, cuboid, or other shapes, the corrugated shape of the thermal management component can be adaptively changed to fit the surface of the battery cell when dealing with other shaped battery cells. The cross-sectional shape of the heat exchange fluid channel within the thermal management component can also be adaptively changed.

[0126] The thermal management unit in this application can directly contact the surface of the battery cell for temperature regulation. Alternatively, a thermally conductive layer can be arranged between the thermal management unit and the surface of the battery cell, allowing the thermal management unit to indirectly contact the battery cell surface through the thermally conductive layer to regulate the temperature. The thermally conductive layer has good thermal conductivity and insulation properties, facilitating heat transfer and insulation, achieving better heat exchange while ensuring the performance of the battery cell. Furthermore, since the thermally conductive layer typically has a certain degree of flexibility, it can reduce collisions between the battery cell and the thermal management unit. The thermally conductive layer can be made of materials such as elastic rubber, thermally conductive grease, or thermally conductive silicone.

[0127] The battery cells mentioned in the embodiments of this application may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., and the embodiments of this application are not limited to these. Battery cells may be cylindrical, flat, cuboid, or other shapes, and the embodiments of this application are not limited to these. Battery cells are generally classified into three types according to their packaging method: cylindrical battery cells, cuboid / square battery cells, and pouch battery cells, and the embodiments of this application are not limited to these. A battery cell includes an electrode assembly and an electrolyte. The electrode assembly consists of a positive electrode plate, a negative electrode plate, and a separator. The battery cell mainly relies on the movement of metal ions between the positive and negative electrode plates to operate. The positive electrode plate includes a positive electrode heat exchange fluid and a positive electrode active material layer. The positive electrode active material layer is coated on the surface of the positive electrode heat exchange fluid, and the heat exchange fluid without the positive electrode active material layer protrudes beyond the heat exchange fluid with the positive electrode active material layer coated on it. The heat exchange fluid without the positive electrode active material layer serves as the positive electrode tab. Taking a lithium-ion battery as an example, the positive electrode heat exchanger fluid can be made of aluminum, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. The negative electrode includes a negative electrode heat exchanger fluid and a negative electrode active material layer. The negative electrode active material layer is coated on the surface of the negative electrode heat exchanger fluid, and the uncoated heat exchanger fluid protrudes beyond the coated heat exchanger fluid, serving as the negative electrode tab. The negative electrode heat exchanger fluid can be made of copper, and the negative electrode active material can be made of carbon or silicon, etc. To ensure that a large current can pass through without melting, there are multiple positive electrode tabs stacked together, and there are multiple negative electrode tabs stacked together. The separator material can be PP or PE, etc. Furthermore, the electrode assembly can be a wound structure or a stacked structure; the embodiments of this application are not limited to these.

[0128] The battery cells mentioned in the embodiments of this application refer to multiple battery cells arranged in the same vertical layer when the battery is in normal use. Specifically, multiple battery cells 11 in the same layer can be arranged side by side along the length Y direction of the thermal management component, and one battery cell can be arranged in the width X direction of the thermal management component. Each battery cell may include one battery cell or multiple battery cells arranged coaxially. Multiple battery cells belonging to one battery cell can be electrically connected, for example, they can be connected in series or in parallel; multiple battery cells belonging to one battery cell may also not be electrically connected. Multiple battery cells arranged coaxially form a row, and their axis direction is parallel to the width X direction of the thermal management component. Battery cells in adjacent columns of each layer of battery cells can be connected in series or in parallel through a busbar component. At least two layers of battery cells means that the battery in the embodiments of this application includes at least two layers of battery cells stacked in the vertical direction as described above, that is, it may also include more than two layers of battery cells. Of course, battery cells may also be arranged at an angle relative to the length Y direction or the width X direction of the thermal management component, etc., which is not limited here.

[0129] The wavy shape of the thermal management component mentioned in the embodiments of this application refers to the wavy shape formed by splicing adjacent arc-shaped outer walls along the length direction Y of the thermal management component. The size of the concave and convex surfaces of the wavy shape is limited by the distance between adjacent rows of battery cells, and the shape of the wavy shape depends on the outer surface shape of the battery cells. The arc-shaped outer wall of the thermal management component mentioned in the embodiments of this application is provided to facilitate a better understanding of the solution of this application by those skilled in the art. The arc shape can be formed by any combination of continuous or discontinuous curves or straight lines, such as ellipses, polygonal prisms, etc.

[0130] The temperature regulation system mentioned in the embodiments of this application refers to a system used to regulate the temperature of battery cells in a battery. Typically, the temperature regulation system is part of the vehicle thermal management system or the battery thermal management system, and regulates the temperature of the battery cells through the circulation of heat exchange fluid.

[0131] In some embodiments, combined with Figures 7 to 17As shown, in a first aspect of this application, a thermal management component 300 is provided, including a set of first heat exchange surfaces 310 and a set of second edge heat exchange surfaces 320. The set of first heat exchange surfaces 310 includes a plurality of first heat exchange surfaces 310; the plurality of first heat exchange surfaces 310 are used to cooperate with a plurality of outer battery cells 13 located on one side of the thermal management component 300 for temperature regulation; each first heat exchange surface 310 is used to cooperate with one outer battery cell 13 for temperature regulation. The set of second edge heat exchange surfaces 320 includes a plurality of second edge heat exchange surfaces 320; the plurality of second edge heat exchange surfaces 320 are used to cooperate with a plurality of intermediate battery cells 14 located on the other side of the thermal management component 300 for temperature regulation; each second edge heat exchange surface 320 is used to cooperate with one intermediate battery cell 14 for temperature regulation. The heat exchange area of ​​each first heat exchange surface 310 is a first heat exchange area S1, and the heat exchange area of ​​each second edge heat exchange surface 320 is a second heat exchange area S2, wherein the first heat exchange area S1 is larger than the second heat exchange area S2.

[0132] In this embodiment, the thermal management component 300 has two sets of heat exchange surfaces 310 and 320 with different heat exchange areas, which can be flexibly used in combination with battery cells 13 and 14. This allows for the placement of two thermal management components on both sides of a single intermediate battery cell 14. Each intermediate battery cell 14 in the single layer of ...

[0133] In some embodiments, a first heat exchange channel 34 is formed within the thermal management component 300, which provides a movement path for the heat exchange fluid. The thermal management component 300 includes a first side plate 31 and a second side plate 32, which are disposed opposite to the first side plate 31 and form the first heat exchange channel 34 between the first side plate 31 and the second side plate 32. A set of first heat exchange surfaces 310 are formed on the first side plate 31, and the heat exchange fluid regulates the temperature of the outer battery cell 13 through the first heat exchange surfaces 310. A set of second edge heat exchange surfaces 320 are formed on the second side plate 32, and the heat exchange fluid also regulates the temperature of the middle battery cell 14 through the second edge heat exchange surfaces 320.

[0134] With the above configuration, the first side plate 31 of the thermal management component 300 is provided with a plurality of first heat exchange surfaces 310, at least one of the first heat exchange surfaces 310 having a first heat exchange area S1; the second side plate 32 is provided with a plurality of second edge heat exchange surfaces 320, at least one of the second edge heat exchange surfaces 320 having a second heat exchange area S2, the first heat exchange area S1 being larger than the second heat exchange area S2, that is, the parts of the first side plate 31 and the second side plate 32 of the thermal management component 300 that exchange heat with the battery unit have different heat exchange areas, which can realize that two thermal management components 300 are provided on both sides of the intermediate battery unit 14, the intermediate battery unit 14 is heat-exchanged by the two second edge heat exchange surfaces 320 of the two thermal management components 300 with smaller heat exchange areas; while the outer battery unit 13 can exchange heat with a first heat exchange surface 310 of a thermal management component 300 with a larger heat exchange area, so that the intermediate battery unit 14 and the outer battery unit 13 achieve essentially the same heat exchange effect. In this embodiment, the thermal management component 300 can be paired with a first heat exchange surface 310 of one thermal management component 300 or two second edge heat exchange surfaces 320 of two thermal management components to exchange heat on a layer of battery cells at different locations, and achieve essentially the same cooling effect. This can achieve uniform heat exchange of any layer of battery cells, has good spatial adaptability, and can meet different spatial usage requirements.

[0135] In some embodiments, the first heat exchange areas S1 of the plurality of first heat exchange surfaces 310 on the first side plate 31 may be the same or different from each other; the second heat exchange areas S2 of the plurality of second edge heat exchange surfaces 320 on the second side plate 32 may be the same or different from each other. When the first heat exchange areas S1 of the plurality of first heat exchange surfaces 310 on the first side plate 31 are the same as each other, and the second heat exchange areas S2 of the plurality of second edge heat exchange surfaces 320 on the second side plate 32 are the same as each other, the first heat exchange area S1 being greater than the second heat exchange area S2 mentioned in the previous embodiments specifically means that the first heat exchange areas S1 of the plurality of first heat exchange surfaces 310 on the first side plate 31 are all greater than the second heat exchange areas S2 of the plurality of second edge heat exchange surfaces 320 on the second side plate 32. When the first heat exchange areas S1 of the plurality of first heat exchange surfaces 310 on the first side plate 31 are different from each other, or the second heat exchange areas S2 of the plurality of second edge heat exchange surfaces 320 on the second side plate 32 are different from each other, the first heat exchange area S1 being greater than the second heat exchange area S2 as mentioned in the previous embodiment can specifically mean that the first heat exchange area S1 of at least one of the plurality of first heat exchange surfaces 310 on the first side plate 31 is greater than the second heat exchange area S2 of at least one of the plurality of second edge heat exchange surfaces 320 on the second side plate 32, or the average value of the first heat exchange areas S1 of the plurality of first heat exchange surfaces 310 on the first side plate 31 is greater than the average value of the second heat exchange areas S2 of the plurality of second edge heat exchange surfaces 320 on the second side plate 32.

[0136] Specifically, with Figure 7 and Figure 10 Taking the thermal management component 300 as an example, the thermal management component 300 is wavy in shape along the length direction Y, formed by splicing adjacent arc-shaped outer walls. A set of first heat exchange surfaces 310 are arranged on the arc-shaped outer wall portion of the first side plate 31 that is recessed into the thermal management component 300. The set of first heat exchange surfaces 310 are arranged along the length direction Y, and each first heat exchange surface 310 is arranged along the width direction X. A set of second edge heat exchange surfaces 320 are arranged on the arc-shaped outer wall portion of the second side plate 32 that is recessed into the thermal management component 300. The set of second edge heat exchange surfaces 320 are arranged along the length direction Y, and each second edge heat exchange surface 320 is arranged along the width direction X.

[0137] In some embodiments, combined with Figure 7 As shown, the thermal management component 300 in this embodiment of the application further includes a first liquid inlet 36 and a first liquid outlet 37, both of which are connected to the first heat exchange channel 34 within the thermal management component 300.

[0138] In some embodiments, combined with Figure 8 , Figure 9 , Figure 16and Figure 17 As shown, in this embodiment of the heat management component 300, a plurality of first heat exchange surfaces 310 are formed on a portion of the arcuate outer wall of the first side plate 31, and a second edge heat exchange surface 320 is formed on a portion of the arcuate outer wall of the second side plate 32.

[0139] The definition of heat exchange surfaces is explained below, taking the first heat exchange surface 310 as an example. The definitions of other heat exchange surfaces in this embodiment, such as the second edge heat exchange surface 320, can be referenced to the first heat exchange surface 310. When an outer battery cell 13 and the first side plate 31 exchange heat through direct contact, the first heat exchange surface 310 is the part where the first side plate 31 and the outer battery cell 13 are in direct contact. When a heat-conducting layer is arranged between an outer battery cell 13 and the first side plate 31, the first heat exchange surface 310 is the part where the first side plate 31 and the outer battery cell 13 exchange heat through indirect contact via the heat-conducting layer. The first heat exchange surface 310 can be a continuous surface or composed of multiple spaced heat exchange surfaces. A heat exchange surface is a part where a portion of the first side plate 31 and a portion of an outer battery cell 13 exchange heat through indirect contact via the heat-conducting layer. Specific details will be explained in conjunction with later embodiments.

[0140] In some embodiments, combined with Figure 10 As shown, the thermal management component includes a first inlet 36 and a first outlet 37 communicating with the first heat exchange channel 34. The first heat exchange channel 34 includes multiple channel segments arranged in a circuitous manner, with an isolation section 33 provided between adjacent channel segments; the first heat exchange channel 34 also includes an intermediate channel segment 342, through which adjacent channel segments are connected. Specifically, as shown... Figure 10As shown in the diagram, in this embodiment, a first heat exchange channel 34 is provided with a first channel segment 341 connected to a first liquid inlet 36 and a second channel segment 343 connected to a first liquid outlet 37. The first channel segment 341 and the second channel segment 343 extend along the length direction Y of the heat management component. An isolation portion 33 is provided between the first channel segment 341 and the second channel segment 343, separating the first channel segment 341 and the second channel segment 343. An intermediate channel segment 342 is located at the edge of the isolation portion 33 and extends along the width direction X of the heat management component. Adjacent first channel segments 341 and second channel segments 343 are connected through the intermediate channel segment 342. Overall, the first heat exchange channel 34 forms a meandering structure, with adjacent first channel segments 341 and second channel segments 343 folded 180°, making the cooling space for cooling the battery cells relatively compact. The number of segments in a first heat exchange channel 34 is determined based on the actual size of the battery to be cooled and the actual operating environment; there are no restrictions on the specific number and length of a single channel segment. Because the temperature of the heat exchange fluid near the first inlet 36 is relatively low and the temperature of the heat exchange fluid near the first outlet 37 is relatively high, a heat exchange surface (including the first heat exchange surface 310 and the second edge heat exchange surface 320) that exchanges heat with a battery cell (including the outer battery cell 13 and the middle battery cell 14) includes both the heat exchange surface near the first inlet 36 with a lower temperature and the heat exchange surface near the first outlet 37 with a higher temperature. This can neutralize the temperature and prevent the battery cell temperature from becoming extreme. At the same time, it can prevent the battery cell temperature near the first inlet 36 and the first outlet 37 from being too different from the battery cell temperature near the middle flow channel segment 342 (located at the end of the thermal management component 300), thereby improving the temperature uniformity of the battery cell.

[0141] In some embodiments, combined with Figure 7 and Figure 10As shown, a first heat exchange channel 34 is provided on each side of the line connecting the first liquid inlet 36 and the first liquid outlet 37. Specifically, the first liquid inlet 36 and the first liquid outlet 37 are located at the middle position along the length Y of the heat management component, and a first heat exchange channel 34 is arranged on each side of the line connecting the first liquid inlet 36 and the first liquid outlet 37. Both first heat exchange channels 34 are connected to the first liquid inlet 36 and the first liquid outlet 37, so that the first liquid inlet 36 and the first liquid outlet 37 can supply liquid to the two first heat exchange channels 34 at the same time. The first liquid inlet 36 and the first liquid outlet 37 are arranged in the middle of the thermal management component 300. A first heat exchange flow channel 34 is arranged on both sides of the line connecting the first liquid inlet 36 and the first liquid outlet 37. This can shorten the flow distance of the heat exchange fluid, and the increase of the parallel loop of the heat exchange fluid can effectively reduce the flow resistance. At the same time, it is beneficial to improve the temperature consistency of the battery cells on both sides of the line connecting the first liquid inlet 36 and the first liquid outlet 37 of the thermal management component 300.

[0142] In some embodiments, combined with Figures 10 to 17 The first heat exchange channel 34, the first side plate 31, and the second side plate 32 will be described.

[0143] In some embodiments, such as Figure 10 As shown, a first heat exchange channel 34 within the thermal management component 300 is divided into a first channel segment 341, a second channel segment 343, and an intermediate channel segment 342. The first channel segment 341 and the second channel segment 343 are primarily used for temperature regulation in conjunction with the battery cells. The first channel segment 341 and the second channel segment 343 have essentially the same structure; the first channel segment 341 will be used as an example for explanation.

[0144] In some embodiments, such as Figure 10 , Figure 11 , Figure 16 and Figure 17 As shown, at the location where the first flow channel segment 341 is provided, the first side plate 31 of the thermal management component 300 forms a first side flow channel segment 314 at the position corresponding to the first flow channel segment 341. The portion of the first side flow channel segment 314 that mates with the outer battery cell 13 forms a plurality of first heat exchange surface segments 311 arranged along the length Y direction. At the location where the second flow channel segment 343 is provided, the first side plate 31 of the thermal management component 300 forms a first side flow channel segment 315 at the position corresponding to the second flow channel segment 343. The portion of the first side flow channel segment 315 that mates with the outer battery cell 13 forms a plurality of first heat exchange surface segments 312 arranged along the length Y direction.

[0145] like Figure 10 and Figure 11As shown, the first side flow channel 3100 includes a plurality of first side branch channels 3141-3144 and 3151-3154 arranged in parallel along the flow direction perpendicular to the heat exchange fluid. The portion of each first side branch channel 3141-3144 and 3151-3154 that cooperates with an outer battery cell forms a first heat exchange surface 3111-3114 and 3121-3124. The first heat exchange surface 3111-3114 forms a first heat exchange surface 1 segment 311, and the first heat exchange surface 3121-3124 forms a first heat exchange surface 2 segment 312. The first heat exchange surface 1 segment 311 and the first heat exchange surface 2 segment 312 together constitute the first heat exchange surface 310. That is, each first heat exchange surface 310 includes multiple first heat exchange segments 3111-3114 and 3121-3124; the first heat exchange area S1 is the sum of the surface areas of the multiple first heat exchange segments 3111-3114 and 3121-3124. However, it is not limited to this. If a segment 311 or a smaller segment 3111-3114 of the first heat exchange surface is used to regulate the temperature of a battery cell, then the first heat exchange surface 310 can also be a segment 311 or a smaller segment 3111-3114 of the first heat exchange surface.

[0146] like Figure 14 As shown, the second side flow channel 3200 includes a plurality of second side branch channels 3241-3246 and 3251-3256 arranged side by side along the flow direction perpendicular to the heat exchange fluid. The portion of each second side branch channel 3241-3246 and 3251-3256 that cooperates with an intermediate battery cell forms a second edge heat exchange surface 3211-3216 and 3221-3226. The second heat exchange surface 3211-3216 forms a second heat exchange surface segment 1 321, and the second heat exchange surface 3221-3226 forms a second heat exchange surface segment 2 322; the second heat exchange surface segment 1 321 and the second heat exchange surface segment 2 322 together constitute the second heat exchange surface 320. That is, each second edge heat exchange surface 320 includes multiple second edge heat exchange facets 3211-3216 and 3221-3226; the second heat exchange area S2 is the sum of the surface areas of the multiple second edge heat exchange facets 3211-3216 and 3221-3226. However, it is not limited to this. If the second heat exchange surface segment 321 or a smaller number of second edge heat exchange facets 3211-3216 are used to regulate the temperature of a battery cell, the second edge heat exchange surface 320 can also be the second heat exchange surface segment 321 or a smaller number of second edge heat exchange facets 3211-3216.

[0147] In this embodiment, by adjusting the surface area and number of the first heat exchange surfaces 3111-3114, 3121-3124 and the second edge heat exchange surfaces 3211-3216, 3221-3226, not only can the second heat exchange area S2 be smaller than the first heat exchange area S1, but the ratio between the second heat exchange area S2 and the first heat exchange area S1 can also be precisely adjusted. According to actual needs, an appropriate ratio between the second heat exchange area S2 and the first heat exchange area S1 can be matched to achieve more accurate heat exchange control.

[0148] Specifically, such as Figure 10 , Figure 11 , Figure 16 and Figure 17 As shown in the figure, the first side channel 3100 includes two first side channel segments arranged side by side along the flow direction perpendicular to the heat exchange fluid, namely first side channel segment 1 314 and first side channel segment 2 315.

[0149] The first side flow channel segment 314 includes multiple first side flow channels. In some embodiments, the first side flow channel segment 314 includes four first side flow channels, namely first side 1 flow channel 3141, first side 2 flow channel 3142, first side 3 flow channel 3143, and first side 4 flow channel 3144. The four first side flow channels 3141, 3142, 3143, and 3144 are separated by a plurality of first side partitions 315. The first side partitions 315 are recessed into the interior of the thermal management component 300 and are at a certain distance from the outer battery cell. The first side partitions 315 do not form direct or indirect contact with the outer battery cell 13. Four first side channels protrude from the first side plate 31. The portion of each first side channel that mates with an outer battery unit 13 forms a first heat exchange surface. Specifically, a first heat exchange surface is formed in the recessed arc-shaped outer wall of the heat management component 300 of each first side channel, where it mates with the outer battery unit 13. The first heat exchange surface is adapted to the shape of the outer battery unit 13 and is in direct contact with the outer battery unit 13 or indirectly in contact through a heat-conducting layer for heat exchange. Adjacent first heat exchange surfaces are separated from each other by first side partitions 315. Thus, in the recessed arc-shaped outer wall of the heat management component 300 of each first side channel, only the first heat exchange surface is in direct contact with the outer battery unit 13 or indirectly in contact through a heat-conducting layer for heat exchange, while the first side partitions 315 do not form direct or indirect contact with the outer battery unit 13. In this way, the heat exchange area of ​​the first heat exchange surface can be adjusted by changing the area and number of the first heat exchange surfaces and first side partitions. The second side flow channel segment 315 also includes four first side flow channels, namely first side 5 flow channel 3151, first side 6 flow channel 3152, first side 7 flow channel 3153 and first side 8 flow channel 3154. That is, the first side flow channel 3100 includes eight first side flow channels arranged in parallel along the flow direction perpendicular to the heat exchange fluid: first side 1 flow channel 3141, first side 2 flow channel 3142, first side 3 flow channel 3143 and first side 4 flow channel 3144, and first side 5 flow channel 3151, first side 6 flow channel 3152, first side 7 flow channel 3153 and first side 8 flow channel 3154.

[0150] Specifically, such as Figure 10As shown, a first heat exchange surface segment 311 includes a first heat exchange surface 3111 located in the first side 1 branch channel 3141, a first heat exchange surface 3112 located in the first side 2 branch channel 3142, a first heat exchange surface 3113 located in the first side 3 branch channel 3143, and a first heat exchange surface 3114 located in the first side 4 branch channel 3144. The first heat exchange surface 3111, the first heat exchange surface 3112, the first heat exchange surface 3113, and the first heat exchange surface 3114 are located on the same recessed arc-shaped outer wall of the first outer side wall 31, and the first heat exchange surface 3111, the first heat exchange surface 3112, the first heat exchange surface 3113, and the first heat exchange surface 3114 are arranged along the width X direction. Similarly, at the location where the second flow channel segment 343 is provided, the first side plate 31 of the thermal management component 300 also forms a first side flow channel 2 segment 315 at the position corresponding to the second flow channel segment 343. The portion of the first side flow channel 2 segment 315 that cooperates with the outer battery cell 13 forms a plurality of first heat exchange surface 2 segments 312 arranged along the length Y direction. Each of these segments is arranged side-by-side with a first heat exchange surface 1 segment 311 in the width X direction. Each first heat exchange surface 2 segment 312 also includes four first heat exchange facets 3121-3124 arranged along the width X direction. The structure of the first heat exchange surface 2 segment 312 can be referenced to the structure of the first heat exchange surface 1 segment 311.

[0151] Specifically, such as Figure 10 As shown, a first heat exchange surface 310 is composed of a first heat exchange surface segment 311 and a first heat exchange surface segment 312 arranged side-by-side in the width X direction. That is, the first heat exchange surface 310 is arranged on the first flow channel segment 341 and the second flow channel segment 343. A first heat exchange surface 310 consists of eight first heat exchange facets 3111-3114 and 3121-3124. However, it is not limited to this; the number of segments and facets of the first heat exchange surface depends on the number of flow channel segments and the number of first side flow channel segments in each flow channel segment. This can be determined according to the actual battery size requiring cooling and the actual operating environment, and no specific limitations are imposed. A first heat exchange surface 310 cooperates with an outer battery cell 13 for temperature regulation. An outer battery cell 13 may include a single battery cell or multiple battery cells arranged coaxially.

[0152] As can be seen from the above embodiments, such as Figure 10As shown, the first heat exchange area S1 of a first heat exchange surface 310 is the sum of the surface areas of a plurality of first heat exchange facets that cooperate with an outer battery cell 13 for temperature regulation. Specifically, the first heat exchange area S1 of a first heat exchange surface 310 is the sum of the surface areas of the four first heat exchange facets 3111-3114 of a first heat exchange surface 1 segment 311 and the four first heat exchange facets 3121-3124 of a first heat exchange surface 2 segment 312.

[0153] In some embodiments, each first heat exchange surface 310 has a first heat exchange width W1, and each second edge heat exchange surface 320 has a second heat exchange width W2, wherein the first heat exchange width W1 is greater than the second heat exchange width W2; wherein the first heat exchange width W1 is the sum of the widths of the plurality of first heat exchange surfaces, and the second heat exchange width W2 is the sum of the widths of the plurality of second edge heat exchange surfaces; the ratio of the second heat exchange width W2 to the first heat exchange width W1 is between 0.1 and 0.9.

[0154] In this embodiment, the ratio of the first heat exchange area to the second heat exchange area is adjusted by regulating the ratio of the first heat exchange width W1 of the first heat exchange surface 320 to the second heat exchange width W2 of the second edge heat exchange surface 320. Specifically, the adjustment of the first heat exchange width W1 of the first heat exchange surface 310 is achieved by adjusting the width and number of the first heat exchange surfaces, and the adjustment of the second heat exchange width W2 of the second edge heat exchange surface 320 is achieved by adjusting the width and number of the second edge heat exchange surfaces. The ratio of the first heat exchange width W1 to the second heat exchange width W2 can be easily adjusted by controlling the ratio of the first heat exchange area S1 to the second heat exchange area S2. This will be explained in detail below with reference to the accompanying drawings.

[0155] In some embodiments, such as Figure 11 and Figure 12 As shown, in a first heat exchange surface segment 311, the widths of the first side 1-channel 3141, the first side 2-channel 3142, the first side 3-channel 3143, and the first side 4-channel 3144 remain constant along the length Y direction. The first heat exchange surface segment 3111 has a first segment width W11, the first heat exchange surface segment 3112 has a second segment width W12, the first heat exchange surface segment 3113 has a third segment width W13, and the first heat exchange surface segment 3114 has a fourth segment width W14. The first segment width W11, the second segment width W12, the third segment width W13, and the fourth segment width W14 can be the same or different, without restriction. For example... Figure 12In this configuration, the second segment width W12 and the third segment width W13 can be greater than the first segment width W11 and the fourth segment width W14. Thus, the width of one first heat exchange surface 310 is the sum of the widths of multiple first heat exchange segments. The structure of the second segment 312 of the first heat exchange surface is the same as or symmetrical to the structure of the first heat exchange segment 3111. Specifically, Figure 10 In this design, the width of a first heat exchange surface 310 is the sum of the widths of the four heat exchange facets 3111-3114 of a first heat exchange surface 1 segment 311 and the four heat exchange facets 3121-3124 of a first heat exchange surface 2 segment 312. The width of the first heat exchange surface 310 can be adjusted by changing the width and number of the first heat exchange facets and the first side partitions.

[0156] In some embodiments, the width of the side channel corresponding to a heat exchange surface segment may vary along the length Y direction and is not a fixed value. In this case, the first width of a first heat exchange surface is its average width along the length Y direction, and the width of a first heat exchange surface 310 is the sum of the average widths of multiple first heat exchange surfaces.

[0157] like Figure 14 As shown, the second side channel 3200 includes two second side channel segments arranged side by side along the flow direction perpendicular to the heat exchange fluid, namely second side channel segment 324 and second side channel segment 325. The second side channel 3200 cooperates with the first side channel 3100 to form the first heat exchange channel 34.

[0158] Specifically, such as Figures 13 to 17As shown in the diagram, each second side flow channel 1 segment 324 includes multiple second side flow channels. In some embodiments, one second side flow channel 1 segment 324 includes six second side flow channels, namely second side flow channel 1 3241, second side flow channel 2 3242, second side flow channel 3243, second side flow channel 4 3244, second side flow channel 5 3245, and second side flow channel 6 3246. The six second side flow channels are separated by a plurality of second side partitions 325 and 326. The second side partitions 325 and 326 are recessed into the interior of the thermal management component and are at a certain distance from the intermediate battery cell 14. The second side partitions 325 and 326 do not form direct or indirect contact with the intermediate battery cell 14. Six second-side flow channels protrude from the second side plate 32. The portion of each second-side flow channel that mates with an intermediate battery unit 14 forms a second edge heat exchange surface. That is, a second edge heat exchange surface is formed in the portion of the inner recessed arc-shaped outer wall of the thermal management component 300 of each second-side flow channel that mates with the intermediate battery unit 14. Adjacent second edge heat exchange surfaces are spaced apart from each other by second-side partitions 325 and 326. In this way, in the inner recessed arc-shaped outer wall of the thermal management component of each first-side flow channel, only the second edge heat exchange surface directly contacts the intermediate battery unit 14 or indirectly contacts it through the heat-conducting layer for heat exchange, while the second-side partitions 325 and 326 do not form direct or indirect contact with the intermediate battery unit 14. Thus, the heat exchange area of ​​the second edge heat exchange surface can be adjusted by changing the area and number of the second edge heat exchange surfaces and the second-side partitions. Similarly, a second side branch channel 2 segment 325 also includes six second side branch channels, namely second side branch channel 7 3251, second side branch channel 8 3252, second side branch channel 9 3253, second side branch channel 10 3254, second side branch channel 11 3255, and second side branch channel 12 3256. That is, the second side flow channel 3200 includes 12 second side flow channels arranged in parallel along the flow direction perpendicular to the heat exchange fluid: second side 1 flow channel 3241, second side 2 flow channel 3242, second side 3 flow channel 3243, second side 4 flow channel 3244, second side 5 flow channel 3245, second side 6 flow channel 3246, second side 7 flow channel 3251, second side 8 flow channel 3252, second side 9 flow channel 3253, second side 10 flow channel 3254, second side 11 flow channel 3255, and second side 12 flow channel 3256.

[0159] In some embodiments, such as Figures 13 to 17As shown, at the location where the first flow channel segment 341 is provided, the second side plate 32 of the thermal management component 300 forms a second side flow channel 1 segment 324 at the position corresponding to the first flow channel segment 341. The portion of the second side flow channel 1 segment 324 that mates with an intermediate battery unit 14 forms a plurality of second edge heat exchange surface segments 1 321 arranged along the length Y direction. At the location where the second flow channel segment 343 is provided, the second side plate 32 of the thermal management component 300 forms a second side flow channel 2 segment 325 at the position corresponding to the second flow channel segment 343. The portion of the second side flow channel 2 segment 325 that mates with an intermediate battery unit 14 forms a plurality of second edge heat exchange surface segments 2 322 arranged along the length Y direction.

[0160] like Figure 14 As shown, a second edge heat exchange surface segment 321 and a second edge heat exchange surface segment 322 arranged side by side constitute a second edge heat exchange surface 320.

[0161] Specifically, such as Figure 14 As shown, a second edge heat exchange surface segment 321 includes a second heat exchange 1 segment 3211 located in the second side 1 branch channel 3241, a second heat exchange 2 segment 3212 located in the second side 2 branch channel 3242, a second heat exchange 3 segment 3213 located in the second side 3 branch channel 3243, a second heat exchange 4 segment 3214 located in the second side 4 branch channel 3244, a second heat exchange 5 segment 3215 located in the second side 5 branch channel 3245, and a second heat exchange 6 segment 3216 located in the second side 6 branch channel 3246. The second heat exchange surface 1 (3211), second heat exchange surface 2 (3212), second heat exchange surface 3 (3213), second heat exchange surface 4 (3214), second heat exchange surface 5 (3215), and second heat exchange surface 6 (3216) are located on the same recessed arc-shaped outer wall of the second outer wall 32. The second heat exchange surface 1 (3211), second heat exchange surface 2 (3212), second heat exchange surface 3 (3213), second heat exchange surface 4 (3214), second heat exchange surface 5 (3215), and second heat exchange surface 6 (3216) are arranged along the width X direction. Similarly, at the location where the second flow channel segment 343 is provided, the second side plate 32 of the thermal management component 300 also forms a second side flow channel segment 2 (325) at the position corresponding to the second flow channel segment 343. The portion of the second side flow channel segment 2 (325) that cooperates with the intermediate battery unit 14 forms a plurality of second edge heat exchange surface segments 2 (322) arranged along the length Y direction. Each second edge heat exchange surface segment 2 322 also includes six second edge heat exchange facets 3221-3226 arranged along the width X direction. The structure of the second edge heat exchange surface segment 2 322 can be referenced to the structure of the second edge heat exchange surface segment 1 321.

[0162] Specifically, such as Figure 14As shown, a second edge heat exchange surface 320 is composed of a second edge heat exchange surface 1 segment 321 and a second edge heat exchange surface 2 segment 322 arranged side by side. That is, the second heat exchange surface 320 is arranged on the first flow channel segment 341 and the second flow channel segment 343. A second edge heat exchange surface 320 is composed of 12 second edge heat exchange facets 3211-3216 and 3221-3226. However, it is not limited to this. The number of segments and facets of the second edge heat exchange surface 320 depends on the number of flow channel segments and the number of second side flow channel segments in each flow channel segment. It can be determined according to the actual size of the battery that needs to be cooled and the actual use environment, and there is no specific limitation. A second edge heat exchange surface 320 cooperates with an intermediate battery cell 14 for temperature regulation. An intermediate battery cell 14 may include one battery cell or multiple battery cells.

[0163] As can be seen from the above embodiments, the second heat exchange area S2 of a second edge heat exchange surface 320 is the sum of the surface areas of multiple second edge heat exchange surfaces that cooperate with an intermediate battery unit 14 for temperature regulation. Specifically, the second heat exchange area S2 of a second edge heat exchange surface 320 is the sum of the surface areas of the six second edge heat exchange surfaces 3211-3216 of a second edge heat exchange surface 1 segment 321 and the six second edge heat exchange surfaces 3221-3226 of a second edge heat exchange surface 2 segment 322.

[0164] In some embodiments, such as Figure 15 As shown, in a second edge heat exchange surface segment 321, the widths of the second side 1 flow channel 3241, second side 2 flow channel 3242, second side 3 flow channel 3243, second side 4 flow channel 3244, second side 5 flow channel 3245, and second side 6 flow channel 3246 remain constant in the length Y direction. The second heat exchange surface segment 3211 has a first width W21, the second heat exchange surface segment 3212 has a second width W22, the second heat exchange surface segment 3223 has a third width W23, the second heat exchange surface segment 3214 has a fourth width W24, the second heat exchange surface segment 3225 has a fifth width W25, and the second heat exchange surface segment 3216 has a sixth width W26. The widths W21 (first segment), W22 (second segment), W23 (third segment), W24 (fourth segment), W25 (fifth segment), and W26 (sixth segment) can be the same or different; there are no restrictions. Thus, the width of a single second edge heat exchange surface 320 is the sum of the widths of multiple second edge heat exchange surfaces. Specifically, Figure 15In this design, the width of a second edge heat exchange surface 320 is the sum of the widths of the six heat exchange surfaces 3211-3216 of a second edge heat exchange surface segment 1 and the six heat exchange surfaces 3221-3226 of a second edge heat exchange surface segment 2. The width of the second edge heat exchange surface 320 can be adjusted by changing the width and number of the second edge heat exchange surfaces and the second side partitions 325 and 326.

[0165] In some embodiments, the width of the side channel of a heat exchange surface segment may vary along the length Y direction, rather than being a fixed value. In this case, the width of a second edge heat exchange segment is the average width of the second edge heat exchange segment in the length Y direction, and the width of a second edge heat exchange surface is the sum of the average widths of multiple second edge heat exchange segments.

[0166] In some embodiments, the first heat exchange channel 34 includes a plurality of sub-channels arranged in parallel along the flow direction perpendicular to the heat exchange fluid. Each sub-channel includes at least one first side branch channel and at least one second side branch channel, and the first side branch channel and the second side branch channel constituting a sub-channel are interconnected.

[0167] In this embodiment, by setting a portion of the first side flow channel and multiple second side flow channels to be interconnected, the first heat exchange channel 34 is divided into multiple sub-channels. The heat exchange fluid in each sub-channel can simultaneously exchange heat with the first side plate and the second side plate, which simplifies the design of the first heat exchange channel 34 and facilitates the manufacturing of thermal management components.

[0168] Figure 16 , Figure 17 The first flow channel segment 341 is used as an example for explanation. The second flow channel segment 343 has the same structure as the first flow channel segment. By configuring a portion of the first side flow channel 3100 and multiple second side flow channels 3200 to be interconnected, the first heat exchange flow channel 34 is divided into multiple sub-flow channels. The heat exchange fluid in each sub-flow channel can simultaneously exchange heat with the first side plate 31 and the second side plate 32, simplifying the design of the first heat exchange flow channel 34 and facilitating the manufacturing of the thermal management component 300. In some embodiments, the sum of the heat exchange areas of at least one first side flow channel 3100 constituting a sub-flow channel is greater than the sum of the heat exchange areas of at least one second side flow channel 3200. In some embodiments, the sum of the widths of at least one first side flow channel 3100 constituting a sub-flow channel is greater than the sum of the widths of at least one second side flow channel 3200.

[0169] Specifically, the first side plate 31 is provided with a first side isolation portion 313, and the second side plate 32 is provided with a second side isolation portion 323. The first side isolation portion 313 and the second side isolation portion 323 are recessed into the interior of the thermal management component 300 and connected to form an isolation portion 33, which divides the thermal management component 300 into a first flow channel segment 341 and a second flow channel segment 343 that are separated.

[0170] In some embodiments, such as Figure 16 and Figure 17 As shown, the first side flow channel 3100 of the first side plate 31 and the second side flow channel 3200 of the second side plate 32 combine to form the first heat exchange flow channel 34. Specifically, the first heat exchange flow channel 34 may include multiple sub-flow channels arranged in parallel along the flow direction perpendicular to the heat exchange fluid. Taking the first flow channel segment 341 as an example, the first flow channel segment 341 includes multiple sub-flow channels arranged in parallel along the flow direction perpendicular to the heat exchange fluid, namely the first sub-flow channel 3411, the second sub-flow channel 3412, the third sub-flow channel 3413, and the fourth sub-flow channel 3414. The structure of the second flow channel segment 343 can refer to the structure of the first flow channel segment 341. The first side flow channel 3100 and the second side flow channel 3200 constituting a sub-flow channel are interconnected.

[0171] In some embodiments, the first side channel 3100 includes a plurality of first side channels arranged in parallel along a direction perpendicular to the flow direction of the heat exchange fluid, each first side channel forming a first heat exchange surface with a portion cooperating with an outer battery cell; each first heat exchange surface includes a plurality of first heat exchange surfaces. The second side channel 3200 includes a plurality of second side channels arranged in parallel along a direction perpendicular to the flow direction of the heat exchange fluid, each second side channel forming a second edge heat exchange surface with a portion cooperating with an intermediate battery cell; each second edge heat exchange surface includes a plurality of second edge heat exchange surfaces; the second heat exchange area S2 is the sum of the surface areas of the plurality of second edge heat exchange surfaces.

[0172] In this embodiment, the first side channel 3100 is divided into multiple first side channels, and the first heat exchange area S1 is the sum of the surface areas of the multiple first heat exchange surfaces; the second side channel 3200 is divided into multiple second side channels, and the second heat exchange area S2 is the sum of the surface areas of the second edge heat exchange surfaces of the multiple second side channels; by adjusting the surface areas and number of the first and second edge heat exchange surfaces, not only can the second heat exchange area S2 be smaller than the first heat exchange area S1, but the ratio between the second heat exchange area S2 and the first heat exchange area S1 can also be precisely adjusted, and an appropriate ratio between the second heat exchange area S2 and the first heat exchange area S1 can be matched according to actual needs to achieve more accurate heat exchange control.

[0173] Specifically, such as Figure 16 and Figure 17As shown, taking the first flow channel segment 341 of the first side plate 31 as an example, the second flow channel segment 343 has a similar structure to the first flow channel segment 341.

[0174] The first flow channel segment 341 of the first side plate 31 has four first side branch channels arranged in parallel along the flow direction perpendicular to the heat exchange fluid, namely first side 1 branch channel 3141, first side 2 branch channel 3142, first side 3 branch channel 3143, and first side 4 branch channel 3144. The first flow channel segment 341 of the second side plate 32 has six second side branch channels, namely second side 1 branch channel 3241, second side 2 branch channel 3242, second side 3 branch channel 3243, second side 4 branch channel 3244, second side 5 branch channel 3245, and second side 6 branch channel 3246.

[0175] When the first outer side plate 31 and the second side plate 32 are assembled together, the first flow channel segment 341 is divided into four sub-flow channels, namely the first sub-flow channel 3411, the second sub-flow channel 3412, the third sub-flow channel 3413, and the fourth sub-flow channel 3414. The first sub-flow channel 3411 is formed by connecting the first side sub-flow channel 3141 and the second side sub-flow channel 3241, with the width W11 of the first side sub-flow channel 3141 being greater than or equal to the width W21 of the second side sub-flow channel 3241, and the heat exchange area of ​​the first side sub-flow channel 3141 also being greater than or equal to the heat exchange area of ​​the second side sub-flow channel 3241. The second sub-flow channel 3412 is formed by connecting the first side sub-flow channel 3142, the second side sub-flow channel 3242, and the second side sub-flow channel 3243. It should be noted that, as... Figure 17 As shown, although the second side partition 326 separates the second side 2-branch channel 3242 and the second side 3-branch channel 3243, the second side partition 326 is not fully connected to the first side plate 31. Furthermore, the width W12 of the first side 2-branch channel 3142 is greater than the sum of the widths W22+W23 of the second side 2-branch channel 3242 and the second side 3-branch channel 3243. Therefore, the first side 2-branch channel 3142, the second side 2-branch channel 3242, and the second side 3-branch channel 3243 are all interconnected to form the second sub-channel 3412. The heat exchange area of ​​the first side 2-branch channel 3142 is also greater than the sum of the heat exchange areas of the second side 2-branch channel 3242 and the second side 3-branch channel 3243.

[0176] Similarly, the third sub-channel 3413 is formed by interconnecting the first side 3-branch channel 3143, the second side 4-branch channel 3244, and the second side 5-branch channel 3245, and the width W13 of the first side 3-branch channel 3143 is greater than the sum of the widths W24 + W25 of the second side 4-branch channel 3244 and the second side 5-branch channel 3245; the fourth sub-channel 3414 is formed by interconnecting the first side 4-branch channel 3144 and the second side 6-branch channel 3246, and the width W14 of the first side 4-branch channel 3144 is greater than the width W26 of the second side 6-branch channel 3246. In other words, the first side branch channel and the second side branch channel constituting a sub-channel are interconnected.

[0177] By comparison Figure 16 and Figure 17 It can be seen that the total width of a first heat exchange surface 310, i.e., the first heat exchange width W1, is the sum of the widths of the four heat exchange surfaces 3111-3114 of a first heat exchange surface segment 1 311 and the four heat exchange surfaces 3121-3124 of a first heat exchange surface segment 2 312. In some embodiments, the first heat exchange width W1 can be considered as twice the sum of the widths of the four heat exchange surfaces 3111-3114 of the first heat exchange surface segment 1 311, W1 = 2 *

[0178] (W11+W12+W13+W14).

[0179] The total width of a second edge heat exchange surface 320, i.e., the second heat exchange width W2, is the sum of the widths of the six heat exchange surfaces 3211-3216 of a second edge heat exchange surface segment 1 321 and the six heat exchange surfaces 3221-3226 of a second edge heat exchange surface segment 2. In some embodiments, the second heat exchange width W2 can be considered as twice the sum of the widths of the six heat exchange surfaces 3211-3216 of the second edge heat exchange surface segment 1 321, W2 = 2*(W21+W22+W23+W24+W25+W26). When W11+W12+W13+W14>W21+W22+W23+W24+W25+W26, the first heat exchange width W1 of at least one first heat exchange surface 310 is greater than the second heat exchange width W2 of at least one second edge heat exchange surface 320, W1>W2.

[0180] When the lengths of direct or indirect contact between each battery cell and the first heat exchange surface 310 and the second edge heat exchange surface 320 of the thermal management component 300 are substantially the same in the Y-direction, the first heat exchange area S1 of the first heat exchange surface 310 is the sum of the heat exchange areas of the four heat exchange surfaces 3111-3114 of the first heat exchange surface segment 1 311 and the four heat exchange surfaces 3121-3124 of the first heat exchange surface segment 2 312. The second heat exchange area S2 of the second edge heat exchange surface 320 is the sum of the heat exchange areas of the six heat exchange surfaces 3211-3216 of the second edge heat exchange surface segment 1 321 and the six heat exchange surfaces 3221-3226 of the second edge heat exchange surface segment 2. When the total width of the first heat exchange surface 310 is greater than the total width of the second edge heat exchange surface 320, the first heat exchange area S1 is also greater than the second heat exchange area S2, S1>S2.

[0181] In addition, refer to Figure 18 and 19 , Figure 18 The diagram shows a partial schematic of conductive heat exchange between the surface of the outer battery cell 13 and the first heat exchange surface 310, as shown in the side view along the Y direction. Figure 19 The diagram shows a partial schematic of conductive heat transfer between the surface of the intermediate battery cell 14 and the second edge heat exchange surface 320, as shown in the side view along the Y direction; Figure 18 and 19 It can also be seen that the first heat exchange width W1 is greater than the second heat exchange width W2, W1>W2; the first heat exchange area S1 is also greater than the second heat exchange area S2, S1>S2.

[0182] In this embodiment, by adjusting the width / area and number of the flow channels on the first side plate 31 and the second side plate 32, the ratio between the second heat exchange area S2 and the first heat exchange area S1 can be precisely adjusted. An appropriate ratio between the second and first heat exchange areas can be achieved according to actual needs, resulting in more accurate heat exchange control. This allows the two side plates 31 and 32 of the thermal management component to provide different cooling effects for the battery cells even when paired with the same type of battery cell. Furthermore, by connecting some of the first and second side flow channels, the heat exchange fluid in the first heat exchange channel 34 can simultaneously heat the battery cells outside the first and second side plates 31 and 32, simplifying the design of the first heat exchange channel 34 and facilitating the manufacturing of the thermal management component. Of course, it is also possible to add a partition between the first and second side plates 31 and 32 to prevent the first and second side flow channels from connecting, thus forming independent first heat exchange channels 34.

[0183] In some embodiments, the ratio of the second heat exchange width W2 to the first heat exchange width W1 is between 0.1 and 0.9. For example, W2 / W1 can be selected from 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.6, 0.65, 0.7, 0.75, 0.8, and 0.85, but is not limited to these specific values.

[0184] In some embodiments, the ratio of the second heat exchange area S2 to the first heat exchange area S1 is between 0.1 and 0.9. S2 / S1 can be selected from 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.6, 0.65, 0.7, 0.75, 0.8, and 0.85, but is not limited to these specific values.

[0185] In some embodiments not shown in the figures, the first side plate 31 may only form one first side flow channel 3100, and no branch flow channels are provided within the first side flow channel 3100. The second side flow channel 3200 of the second side plate 32 may also include a plurality of second side branch flow channels spaced apart, as shown in the previous embodiments, with one first side flow channel 3100 connecting all the second side branch flow channels. The portion of each second side branch flow channel that cooperates with an intermediate battery cell forms a second edge heat exchange surface; each second edge heat exchange surface includes a plurality of second edge heat exchange surfaces; the second heat exchange area S2 is the sum of the surface areas of the plurality of second edge heat exchange surfaces. The first side channel 3100 is a single channel, and the second side channel 3200 is divided into multiple second side sub-channels. The second heat exchange area S2 is the sum of the surface areas of the second edge heat exchange surfaces of the multiple second side sub-channels. By adjusting the surface area and number of the second edge heat exchange surfaces, not only can the second heat exchange area be smaller than the first heat exchange area, but the ratio between the second heat exchange area S2 and the first heat exchange area S1 can also be precisely adjusted. According to actual needs, an appropriate ratio between the second heat exchange area S2 and the first heat exchange area S1 can be matched to achieve more accurate heat exchange control.

[0186] In some embodiments, a first side flow channel 3100 is interconnected with a plurality of second side branch channels to form a first heat exchange flow channel 34. In this embodiment, by setting the first side flow channel 3100 and the plurality of second side branch channels to be interconnected, the heat exchange fluid in the first heat exchange flow channel 34 can simultaneously exchange heat with the first side plate 31 and the second side plate 32, which simplifies the design of the first heat exchange flow channel 34 and facilitates the manufacturing of the thermal management component 300.

[0187] In some embodiments, each first heat exchange surface has a first heat exchange width W1, and each second edge heat exchange surface has a second heat exchange width W2, wherein the first heat exchange width W1 is greater than the second heat exchange width W2; wherein, the first heat exchange width W1 is the width of the first heat exchange surface; the second heat exchange width W2 is the sum of the widths of the plurality of second edge heat exchange surfaces; and the ratio of the second heat exchange width W2 to the first heat exchange width W1 is between 0.1 and 0.9. This arrangement also ensures that the first heat exchange width W1 of each first heat exchange surface is greater than the second heat exchange width W2 of each second edge heat exchange surface, W1>W2; and the first heat exchange area S1 is also greater than the second heat exchange area S2, S1>S2. This simplifies the design of the first heat exchange channel 34 and facilitates the manufacturing of the thermal management component. Of course, it is also possible to provide a partition between the first side plate 31 and the second side plate 32 so that the first side channel and the second side channel are not connected, thus forming independent first heat exchange channels 34.

[0188] In some embodiments, the thermal management component 300 is further provided with a first turbulence section 316, which is disposed in the first side flow channel 3100 and / or the second side flow channel 3200. The first turbulence section 316 is used to generate turbulence in the heat exchange fluid flowing through the first side flow channel 3100 and / or the second side flow channel 3200. By providing the first turbulence section 316 in the first side flow channel 3100 and / or the second side flow channel 3200, the heat exchange fluid flowing through the first side flow channel 3100 and / or the second side flow channel 3200 can be turbulentized, thereby improving the heat exchange effect of the heat exchange fluid.

[0189] Specifically, such as Figure 10 , 11 In one embodiment shown in 1, 12, and 17, a plurality of first turbulence sections 316 are provided on the first side plate 31 corresponding to the second sub-flow channel 3412 and the third sub-flow channel 3413. The first turbulence sections 316 protrude from the first side 2 branch channel 3142 and the first side 3 branch channel 3143 into the interior of the thermal management component 300. The first turbulence sections 316 can contact the second side partition 326 on the opposite second side plate 32, or there can be a certain gap between them. The first turbulence sections 316 can fully turbulentize the second sub-flow channel 3412 and the third sub-flow channel 3413, so that the temperature of the heat exchange fluid in the first heat exchange channel 34 is uniform, thereby making the temperature regulation of the battery cell more uniform. A plurality of first turbulence sections 316 are provided in the length direction Y of the second sub-flow channel 3412 and the third sub-flow channel 3413. In some embodiments, the plurality of first turbulence sections 316 can also be staggered in the width direction X. The first turbulence section 316 can also be located in the second side branch channel of the second side plate.

[0190] In some embodiments, the first turbulence section 316 is disposed in the portion of the first side channel and / or the second side channel that does not engage with the battery cell. If the first turbulence section 316 is disposed in the portion engaging with the battery cell, the first turbulence section 316 may occupy the surface area of ​​the first heat exchange surface and / or the second edge heat exchange surface, thereby affecting the heat exchange effect. By disposing of the first turbulence section 316 in the portion not engaging with the battery cell, the first turbulence section 316 will not affect the first heat exchange area S1 and the second heat exchange area S2, and can form turbulence at the downstream first heat exchange surface 310 and / or the second edge heat exchange surface 320, improving the heat exchange effect. Specifically, as Figure 10 As shown, the first turbulence section 316 is provided on the part of the arc-shaped outer wall of the first side plate 31 that protrudes away from the thermal management component 300. This part does not cooperate with the battery cell, so that the first turbulence section 316 will not affect the first heat exchange area S1 and the second heat exchange area S2.

[0191] Figures 20-29 A battery structure provided by a second aspect of an embodiment of this application is shown. Wherein, Figures 20-29 The edge thermal management components 400 and 500 in the illustrated embodiments have the same structure as the thermal management component 300 provided in the first aspect of the present application, and their specific structures are described in the above embodiments.

[0192] The battery of this application embodiment includes at least three layers of battery cells and a temperature regulation system. The at least three layers of battery cells include two outer layers of battery cells and at least one intermediate layer of battery cells, with the intermediate layer located between the two outer layers. Each outer layer and each intermediate layer includes multiple battery cells. The temperature regulation system is used for heat exchange with the outer battery cells and the intermediate layer. The temperature regulation system includes two sets of first heat exchange surfaces and multiple sets of second heat exchange surfaces. Each set of first heat exchange surfaces includes multiple first heat exchange surfaces, and each set of second heat exchange surfaces includes multiple second heat exchange surfaces. The first and second heat exchange surfaces can exchange heat with a heat exchange fluid inside the temperature regulation system. The temperature regulation system is configured... To ensure that: one side of each outer battery cell cooperates with a set of first heat exchange surfaces for temperature regulation; wherein one side of each outer battery cell cooperates with one of the first heat exchange surfaces in the set of first heat exchange surfaces for temperature regulation, and at least one first heat exchange surface has a first heat exchange area S1; each middle battery cell is disposed between two sets of second heat exchange surfaces, and the two opposite sides of each middle battery cell cooperate with an adjacent set of second heat exchange surfaces for temperature regulation; the two opposite sides of each middle battery cell cooperate with an adjacent second heat exchange surface for temperature regulation; the first heat exchange area S1 is greater than the heat exchange area of ​​at least one second heat exchange surface.

[0193] In this embodiment, the temperature control system includes two sets of first heat exchange surfaces and multiple sets of second heat exchange surfaces to exchange heat between two outer battery cells and at least one intermediate battery cell. One side of each outer battery cell exchanges heat with one set of first heat exchange surfaces, meaning each outer battery cell exchanges heat with the temperature control system through the first heat exchange area. The two opposite sides of each intermediate battery cell exchange heat with an adjacent set of second heat exchange surfaces, meaning each intermediate battery cell exchanges heat with the temperature control system through the heat exchange area of ​​two second heat exchange surfaces. This allows for the construction of batteries with both odd and even numbers of battery cells, enabling more flexible design of the number and thickness of battery layers and providing better spatial adaptability. Furthermore, since the first heat exchange area is larger than the heat exchange area of ​​the second heat exchange surfaces, the cooling effect of the intermediate and outer battery cells can be freely adjusted. By changing the ratio of the heat exchange area of ​​the first heat exchange area to that of the second heat exchange surface, the outer battery cell and the middle battery cell can achieve a more similar cooling effect, reduce the temperature difference between battery cells, make the battery state consistent, and improve the overall performance of the battery.

[0194] In some embodiments, multiple outer battery cells in the same layer can be arranged side-by-side along the length Y direction of the thermal management component, and one outer battery cell can be arranged along the width X direction of the thermal management component. Each outer battery cell may include one battery cell or multiple battery cells arranged coaxially. Multiple battery cells belonging to one outer battery cell may or may not be electrically connected. Battery cells in adjacent columns of the outer battery cells in each layer can be connected in series or in parallel through a busbar. The structure of the intermediate battery cells in each layer can refer to the structure of the outer battery cells in each layer.

[0195] In some embodiments, the ratio of the heat exchange area of ​​the second heat exchange surface to the first heat exchange area S1 is between 0.1 and 0.9.

[0196] In some embodiments, such as Figure 20-24 As shown, the battery in this embodiment includes a three-layer battery cell and a temperature regulation system 1000. (As illustrated...) Figure 20 As shown, the three-layer battery unit includes two outer battery units 13 and 15 and one intermediate battery unit 14, which are parallel to each other. Each outer battery unit 13 and 15 includes multiple outer battery units 13 and 15. The intermediate battery unit 14 includes multiple intermediate battery units 14. The temperature regulation system 1000 includes two parallel edge thermal management components 400 and 500. Figure 20-24 The edge thermal management components 400 and 500 shown have the same structure as Figure 7-17 The structure of the thermal management component 300 is the same, so it will not be described again.

[0197] Specifically, a set of first heat exchange surfaces 410 of the aforementioned temperature regulation system 1000 are formed on the first side plate 41 of the edge heat management component 400, and a set of first heat exchange surfaces 510 of the aforementioned temperature regulation system 1000 are also formed on the first side plate 51 of the edge heat management component 500. The first heat exchange surfaces 410 and 510 of the edge heat management components 400 and 500 are... Figures 7-11 The first heat exchange surface 310 in 16 and 17 has the same structure and has a first heat exchange area S1. The aforementioned temperature control system 1000 includes multiple sets of second heat exchange surfaces, including two sets of second edge heat exchange surfaces 420 and 520 respectively formed on the second side plates 42 and 52 of the two edge heat management components 400 and 500; the second edge heat exchange surfaces 420 and 520 are similar in structure to those in 16 and 17. Figure 13-17 The second edge heat exchange surface 320 has the same structure; the second edge heat exchange surfaces 420 and 520 have a second heat exchange area S2.

[0198] The two second side plates 42 and 52 of the two edge thermal management components 400 and 500 are adjacent, and the two first side plates 41 and 51 are opposite to each other; an outer battery unit 13 and 15 are respectively provided on the first side plates 41 and 51 of the two edge thermal management components 400 and 500, and one side of each outer battery unit 15 and 13 is engaged with a corresponding first heat exchange surface 410 and 510; an intermediate battery unit 14 is provided between the two edge thermal management components 400 and 500, and the two opposite sides of each intermediate battery unit 14 are engaged with a second edge heat exchange surface 420 and 520 of the two edge thermal management components 400 and 500, respectively.

[0199] Thus, for reference Figure 21 and Figure 22 , Figure 21 The diagram shows a partial schematic of the temperature-regulating connection between the intermediate battery unit 14 and the two thermal management components 400 and 500, as shown in the side view along the Y direction. The upper side of the intermediate battery unit 14 exchanges heat with the second edge heat exchange surface 420 of the second side plate 42 of the upper edge thermal management component 400, and the heat exchange area is the second heat exchange area S2. The lower side of the intermediate battery unit 14 exchanges heat with the second edge heat exchange surface 520 of the second side plate 52 of the upper edge thermal management component 500, and the heat exchange area is also the second heat exchange area S2. Therefore, the total heat exchange area of ​​the intermediate battery unit 14 and the two edge thermal management components 400 and 500 is twice the second heat exchange area 2S2. Figure 19The diagram shows a partial schematic of the temperature-regulating interface between the outer battery cell 13 and a thermal management component 500, as shown in the side view along the Y direction. The surface of the outer battery cell 13 and the first heat exchange surface 510 of the first side plate 51 of the lower edge thermal management component 500 undergo conductive heat exchange, with a total heat exchange area of ​​S1. In the uppermost layer of outer battery cells, the total heat exchange area of ​​one outer battery cell 15 and the edge thermal management component 400 is the same as the total heat exchange area of ​​the outer battery cell 13, which is also S1.

[0200] According to the first aspect embodiment, the ratio of the second heat exchange area S2 to the first heat exchange area S1 is between 0.1 and 0.9. S2 / S1 can be between 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.6, 0.65, 0.7, 0.75, 0.8, and 0.85. Therefore, in the battery of this embodiment, the total heat exchange area ratio 2S2 / S1 between the intermediate battery unit and the outer battery units can be between 0.2 and 1.8. In some embodiments, 2S2 / S1 can be 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, etc., but is not limited to these specific values. The total heat exchange area ratio 2S2 / S1 between the intermediate battery unit 14 and the outer battery units 13 and 15 can be selected within a suitable range according to actual needs. For example, when the intermediate battery unit 14 and the outer battery units 13 and 15 use the same type of battery, 2S2 / S1 can be between 0.3 and 1.2, such as between 0.4 and 1.0, or between 0.3 and 0.6, or between 0.6 and 0.8. This allows the intermediate battery unit 14 and the outer battery units 13 and 15 to obtain basically the same cooling effect, keeping the temperature and performance of the intermediate battery unit 14 and the outer battery units 13 and 15 consistent, resulting in more stable battery performance, better reliability, and longer lifespan. For example, when the heat dissipation of the intermediate battery unit 14 is poor, or when the intermediate battery unit 14 is of a different model than the outer battery units 13 and 15, and the intermediate battery unit 14 requires a stronger cooling effect, 2S2 / S1 can also be between 1.2 and 1.8, for example, between 1.3 and 1.6 or 1.4 and 1.5. This gives the intermediate battery stronger temperature regulation performance, thereby ensuring that the temperature and performance of the intermediate battery unit 14 are consistent with those of the outer battery units 13 and 15, resulting in more stable battery performance, better reliability, and longer lifespan. Therefore, the battery in this embodiment, by adjusting the ratio of 2S2 / S1, can achieve free adjustment of the cooling effect of the intermediate battery unit 14 and the outer battery units 13 and 15, and can be compatible with different types of batteries to meet the different temperature regulation performance requirements of different battery parts. Furthermore, it can achieve the combination of an odd number of battery layers, and both side plates of each thermal management component are used for temperature regulation of the battery unit. The number of thermal management components is one less than the number of battery unit layers, reducing the overall thickness of the battery and providing better space adaptability.

[0201] In some embodiments, such as Figure 23 , 24 As shown, the two edge heat management components 400 and 500 are in heat exchange fluid communication. Specifically, the edge heat management component 400 is provided with a first liquid inlet 46 and a first liquid outlet 47. The first liquid inlet 46 and the first liquid outlet 47 are connected to... Figure 10The inlet 36 and outlet 37 of the first edge thermal management component 400 have the same structure. In addition, the edge thermal management component 400 also has a second outlet 48 and a second inlet 49. The second outlet 48 is connected to the first inlet 46, and the second inlet 49 is connected to the first outlet 47. The lower edge thermal management component 500 has a third inlet 56 and a third outlet 57. The third inlet 56 is connected to the second outlet 48, and the third outlet 57 is connected to the second inlet 49, thus connecting the heat exchange fluids of the two edge thermal management components 400 and 500. Connecting the two thermal management components 400 and 500 to the same thermal management system simplifies the piping, reduces costs, and makes the battery structure more compact. However, the method of connecting the heat exchange fluids of the two edge thermal management components 400 and 500 is not limited to... Figure 23 , Figure 24 The two edge heat management components 400 and 500 can be connected in series or in parallel, and this application does not impose any restrictions on either connection.

[0202] In some embodiments, such as Figure 25 As shown, the battery cell has four or more layers, including two outer battery cells 13 and 15 and at least two intermediate battery cells. The temperature regulation system 2000 includes two parallel edge thermal management components 400 and 500, and at least one intermediate thermal management component 600. The at least one intermediate thermal management component 600 is disposed between the two edge thermal management components 400 and 500, and is parallel to both. The two second side plates 41 and 51 of the two edge thermal management components 400 and 500 are adjacent to a third side plate 61 and 62 of the intermediate thermal management component 600, respectively. The two first side plates 41 and 51 of the two edge thermal management components 400 and 500 are opposite to each other.

[0203] An outer battery unit 13 and 15 are respectively provided on the first side plates 41 and 51 of the two edge thermal management components 400 and 500. The outer battery units 13 and 15 are mated with the first heat exchange surfaces 410 and 510 of the corresponding first side plates 41 and 51, respectively, and the specific mating method is the same as that of the first heat exchange surfaces 410 and 510 of the first side plates 41 and 51. Figure 20 , Figure 22 This will not be repeated here.

[0204] An intermediate battery cell is provided between each edge thermal management component 400, 500 and an adjacent intermediate thermal management component 600; in the intermediate battery cell that cooperates with the edge thermal management component 400, each intermediate battery cell has two sides that cooperate with the second edge heat exchange surfaces 420, 520 of the second sides 42, 52 of the edge thermal management components 400, 500, and the second intermediate heat exchange surface 610 of the third side plate 61 of the intermediate thermal management component 600, and / or

[0205] An intermediate battery unit 17 is provided between each pair of adjacent intermediate thermal management components 600. In the intermediate battery unit 17, which is in cooperation with the intermediate thermal management components 600 on both sides, the two sides of each intermediate battery unit 17 are respectively in cooperation with the second intermediate heat exchange surface 610 of the opposite third side plate 62 of the two intermediate thermal management components 600.

[0206] Compared to Figure 20 Implementation examples, Figure 25 The difference in the embodiment is the addition of at least one intermediate thermal management component 600 and at least one intermediate battery cell layer. The number of intermediate thermal management components 600 is three times the number of battery cell layers.

[0207] The structure of the battery with intermediate thermal management component 600 will be described in detail below.

[0208] In some embodiments, such as Figure 25 As shown, the battery has four battery cells, including two outer battery cells 13 and 15 and two middle battery cells 14 and 16. The temperature regulation system 2000 includes two edge thermal management components 400 and 500 and one middle thermal management component 600. One middle thermal management component 600 is disposed between the two edge thermal management components 400 and 500, and both the middle and edge thermal management components are arranged parallel to each other. The two second side plates 42 and 52 of the two edge thermal management components 400 and 500 are adjacent to a third side plate 61 and 62 of the middle thermal management component 600, respectively. The two first side plates 41 and 51 of the two edge thermal management components 400 and 500 are opposite to each other. An outer battery cell 13 and 15 are respectively disposed on the first side plates 41 and 51 of the two edge thermal management components 400 and 500, and the outer battery cells 13 and 15 cooperate with the first heat exchange surfaces of the corresponding first side plates 41 and 51, with the specific structure and cooperation method being the same as... Figure 20 , Figure 22 This will not be repeated here.

[0209] On the other hand, such as Figure 25As shown, an intermediate battery unit 14, 16 is provided between each edge thermal management component 400, 500 and an adjacent intermediate thermal management component 600; in the intermediate battery unit 14, 16 that cooperates with the edge thermal management components 400, 600, one side of each intermediate battery unit 14, 16 cooperates with the second edge heat exchange surface 420, 520 of the second side surface 42, 52 of the edge thermal management components 400, 500, and the other side of each intermediate battery unit 14, 16 cooperates with the second intermediate heat exchange surface 610 of the third side plate 61 of an intermediate thermal management component 600.

[0210] like Figure 26 As shown, taking the intermediate battery unit 16 as an example, the upper side of the intermediate battery unit 16 exchanges heat with the second edge heat exchange surface 420 of the second side plate 42 of the upper edge heat management component 400, with a heat exchange area of ​​the second heat exchange area S2; the lower side of the intermediate battery unit 14 exchanges heat with the second intermediate heat exchange surface 610 of the third side plate 61 of the upper intermediate heat management component 600, with a heat exchange area of ​​the third heat exchange area S3. Therefore, the total heat exchange area between the intermediate battery unit 16, one edge heat management component 400, and one intermediate heat management component 600 is the sum of the second heat exchange area S2 and the third heat exchange area S3, S2 + S3. The heat exchange area between the outer battery units 13 and 15 and the edge heat management component is S1. The situation of the intermediate battery unit 14 can be referred to that of the intermediate battery unit 16.

[0211] Since the ratio of the second heat exchange area S2 to the first heat exchange area S1 is between 0.1 and 0.9, and the ratio of the third heat exchange area S3 to the first heat exchange area S1 is also between 0.1 and 0.9, in the battery of this embodiment, the total heat exchange area ratio of the middle battery units 14 and 16 to the outer battery units 13 and 15 is the ratio of the sum of the first heat exchange area S2 and the second heat exchange area S3 to the first heat exchange area S1, which is (S2+S3) / S1, and can be between 0.2 and 1.8. In some embodiments, (S2+S3) / S1 can be 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, etc., but is not limited to these specific values. The total heat exchange area ratio (S2+S3) / S1 of the intermediate battery units 14 and 16 and the outer battery units 13 and 15 can be selected within a suitable range according to actual needs. For example, when the intermediate battery units 14 and the outer battery units 13 and 15 use the same type of battery, (S2+S3) / S1 can be between 0.3 and 1.2, such as between 0.4 and 1.0, or between 0.3 and 0.6, or between 0.6 and 0.8. This ensures that the intermediate battery units 14 and 16 achieve essentially the same cooling effect as the outer battery units 13 and 15, maintaining consistent temperature and performance, resulting in more stable battery performance, better reliability, and longer lifespan. Alternatively, when the heat dissipation effect of the intermediate battery units 14 and 16 is poor, or when the intermediate battery units 14 and 16 are of different types than the outer battery units 13 and 15, and the intermediate battery units 14 and 16 require a stronger cooling effect, [further details can be added].

[0212] (S2+S3) / S1 can also be between 1.2 and 1.8, such as between 1.3 and 1.6 or between 1.4 and 1.5. This gives the intermediate battery stronger temperature regulation performance, thereby keeping the temperature and performance of the intermediate battery unit 14 consistent with those of the outer battery units 13 and 15, making the battery performance more stable, reliable, and longer-lasting.

[0213] Therefore, the battery in this embodiment, by adjusting the ratio of (S2+S3) / S1, allows for free adjustment of the cooling effect of the intermediate battery units 14 and 16 and the outer battery units 13 and 15, making it compatible with different types of batteries and meeting the different temperature regulation performance requirements of different battery parts. Furthermore, by using an intermediate thermal management component, the battery can achieve temperature regulation of four or more odd-numbered or even-numbered battery units, making the battery packing method more flexible. Both side plates of each thermal management component are used for temperature regulation of the battery units, and the number of thermal management components is one less than the number of battery unit layers, reducing the overall thickness of the battery and providing better space adaptability. Furthermore, the second heat exchange area S2 and the third heat exchange area S3 can be the same or different. By combining different edge thermal management components and intermediate management components, and adjusting the size and ratio of the first heat exchange area S1, the second heat exchange area S2, and the third heat exchange area S3, various battery cell combination methods can be met. Differentiated design and more precise temperature regulation and control can be carried out for the different temperature regulation performance requirements of each layer of battery cooling units and the temperature differences of the heat exchange fluid in the thermal management components at various locations. This ensures that the temperature and performance of the intermediate battery unit 14 are consistent with those of the outer battery units 13 and 15, resulting in more stable battery performance, better reliability, and longer lifespan.

[0214] In some embodiments, the two edge thermal management components 400, 500 and the intermediate thermal management component 600 are in heat exchange fluid communication. The heat exchange fluid communication can be in series or in parallel, and this application embodiment does not impose any limitation on either. Of course, the two edge thermal management components 400, 500 and the intermediate thermal management component can also be independent of each other and operate independently.

[0215] Specifically, such as Figure 27 The diagram illustrates the structure of an intermediate thermal management component 600 according to an embodiment of this application. The third side plates 61 and 62 on both sides of the intermediate thermal management component are... Figure 13 The second side plate 32 of the thermal management component 300 has a similar structure. The two third side plates 61 and 62 are symmetrically arranged with respect to the centerline of the thickness Z direction of the intermediate thermal management component 600.

[0216] The intermediate heat management component 600 has a second heat exchange channel 64 for heat exchange fluid flow. The intermediate heat management component includes a fourth liquid inlet 66 and a fourth liquid outlet 67 communicating with the second heat exchange channel 64. The second heat exchange channel 64 includes multiple channel segments arranged in a circuitous manner, and a third isolation section 63 is provided between two adjacent channel segments. The second heat exchange channel 64 also includes a second intermediate channel segment 642, through which two adjacent channel segments are connected.

[0217] Specifically, such as Figure 27 As shown in the diagram, in this embodiment, a second heat exchange channel 64 is provided with a third channel segment 641 connected to a third liquid inlet 66 and a fourth channel segment 643 connected to a third liquid outlet 67. The third channel segment 641 and the fourth channel segment 643 extend along the length direction Y of the intermediate heat management component 600. A third isolation portion 63 is provided between the third channel segment 641 and the fourth channel segment 643, separating the third channel segment 641 and the fourth channel segment 643. A second intermediate channel segment 642 is located at the edge of the third isolation portion 643 and extends along the width direction X of the intermediate heat management component. Adjacent third channel segments 641 and fourth channel segments 643 are connected through the second intermediate channel segment 642. Overall, the second heat exchange channel 64 forms a meandering structure, with adjacent third channel segments 641 and 643 folded 180°, making the cooling space for cooling the battery cells relatively compact. The number of segments in a second heat exchange channel 64 is determined based on the actual size of the battery to be cooled and the actual operating environment; there are no restrictions on the specific number and length of a single channel segment. Because the temperature of the heat exchange fluid near the third inlet 66 is relatively low and the temperature of the heat exchange fluid near the third outlet 67 is relatively high, the third heat exchange surface 610 that exchanges heat with a battery cell includes both the heat exchange surface near the third inlet 66 with a lower temperature and the heat exchange surface near the third outlet 67 with a higher temperature. This can neutralize the temperature and prevent the battery cell temperature from becoming extreme. At the same time, it can prevent the battery cell temperature near the third inlet 66 and the third outlet 67 from being too different from the battery cell temperature near the second intermediate flow channel segment 642 (located at the end of the intermediate thermal management component 600), thereby improving the temperature uniformity of the battery cell.

[0218] In some embodiments, a second heat exchange channel 64 is provided on each side of the third liquid inlet 66 and the third liquid outlet 67. Specifically, the third liquid inlet 66 and the third liquid outlet 67 are located at the middle position along the length Y of the intermediate thermal management component, and a second heat exchange channel 64 is arranged on each side. Both second heat exchange channels 64 are connected to the third liquid inlet 66 and the third liquid outlet 67, so that the third liquid inlet 66 and the third liquid outlet 67 can supply liquid to the two second heat exchange channels 64 simultaneously. The third liquid inlet 66 and the third liquid outlet 67 are arranged in the middle of the intermediate thermal management component 600. Arranging a second heat exchange channel 64 on each side of the line connecting the third liquid inlet 66 and the third liquid outlet 67 can shorten the flow distance of the heat exchange fluid, and the increase of the parallel loop of the heat exchange fluid can effectively reduce the flow resistance. At the same time, it is beneficial to improve the temperature uniformity of the battery cells on both sides of the line connecting the third liquid inlet 66 and the third liquid outlet 67 of the intermediate thermal management component 600.

[0219] Specifically, such as Figure 27 , 28 As shown, the two third side plates 61 and 62 of the intermediate thermal management component 600 have third side flow channel segments formed at positions corresponding to the third flow channel segment 641. The portion of the third side flow channel segment 614 that cooperates with an intermediate battery cell forms a plurality of second intermediate heat exchange surface segments 1 611 arranged along the length Y direction. Each third side flow channel segment includes a plurality of third side flow channels. In some embodiments, a third side flow channel segment includes six third side flow channels, namely third side 1 flow channel 6141, third side 2 flow channel 6142, third side 3 flow channel 6143, third side 4 flow channel 6144, third side 5 flow channel 6145, and third side 6 flow channel 6146. The six third side flow channels are separated by a plurality of third side partitions 625 and 626. Six third-side flow channels protrude from the third side plate 61. The portion of each third-side flow channel that mates with an intermediate battery unit 14 forms a third heat exchange surface. That is, a third heat exchange surface is formed in the portion of the arc-shaped outer wall of each third-side flow channel that mates with the intermediate battery unit 14 within the recessed interior of the intermediate thermal management component 600. The structure of the fourth flow channel segment 643 can refer to the structure of the third flow channel segment 641.

[0220] Specifically, such as Figure 29As shown, a second intermediate heat exchange surface segment 1 611 includes a third heat exchange 1 segment 6111 located in the third side 1 branch channel 6141, a third heat exchange 2 segment 6112 located in the third side 2 branch channel 6142, a third heat exchange 3 segment 6113 located in the third side 3 branch channel 6143, a third heat exchange 4 segment 6114 located in the third side 4 branch channel 6144, a third heat exchange 5 segment 6115 located in the third side 5 branch channel 6145, and a third heat exchange 6 segment 6116 located in the third side 6 branch channel 6146. The third heat exchange surface 1 (6111), third heat exchange surface 2 (6112), third heat exchange surface 3 (6113), third heat exchange surface 4 (6114), third heat exchange surface 5 (6115), and third heat exchange surface 6 (6116) are located on the same recessed arc-shaped outer wall of the third side plate 61. The third heat exchange surface 1 (6111), third heat exchange surface 2 (6112), third heat exchange surface 3 (6113), third heat exchange surface 4 (6114), third heat exchange surface 5 (6115), and third heat exchange surface 6 (6116) are arranged along the width X direction. Similarly, at the location where the third flow channel segment 643 is provided, the third side plate 61 of the intermediate heat management component 600 also forms a third side flow channel segment at the position corresponding to the third flow channel segment 643. The portion of the third side flow channel segment that cooperates with the third battery unit 14 forms a plurality of second intermediate heat exchange surface segments 2 (612) arranged along the length Y direction. Each of the second intermediate heat exchange surface segments 611 is arranged side-by-side with a second intermediate heat exchange surface segment 1 in the width X direction. Each second intermediate heat exchange surface segment 612 also includes six third heat exchange surfaces arranged in the width X direction. The structure of the second intermediate heat exchange surface segment 612 can refer to the structure of the second intermediate heat exchange surface segment 611, and the structure of the second intermediate heat exchange surface segment 612 can be the same as the structure of the second intermediate heat exchange surface segment 611, or it can be mirror-symmetrical with respect to the third isolation portion 63.

[0221] Specifically, such as Figure 27 As shown, a second intermediate heat exchange surface segment 1 611 and a second intermediate heat exchange surface segment 2 612 arranged side by side constitute a second intermediate heat exchange surface 610. A second intermediate heat exchange surface 610 consists of 12 third heat exchange facets. However, it is not limited to this; if the second intermediate heat exchange surface segment 1 611 or smaller third heat exchange facets 6111-6116 are used to regulate the temperature of a battery cell, the second intermediate heat exchange surface can also be the second intermediate heat exchange surface segment 1 611 or smaller third heat exchange facets. The number of segments and facets of the second intermediate heat exchange surface 610 depends on the number of flow channel segments and the number of third-side flow channel segments in each flow channel segment, and can be determined according to the actual battery size to be cooled and the actual usage environment, without specific limitations. A second intermediate heat exchange surface 610 cooperates with an intermediate battery cell 14 for temperature regulation. An intermediate battery cell 14 may include one battery cell or multiple battery cells.

[0222] Specifically, each of the second intermediate heat exchange surfaces 610 is distributed along the width direction X of the intermediate heat management component 600, and a group of second intermediate heat exchange surfaces 610 are arranged along the length direction Y of the intermediate heat management component 600.

[0223] Specifically, the third heat exchange area S3 of at least one second intermediate heat exchange surface 610 is the sum of the surface areas of a plurality of third heat exchange facets that cooperate with an intermediate battery cell 14 for temperature regulation. Specifically, the third heat exchange area S3 of a second intermediate heat exchange surface 610 is the sum of the surface areas of the six third heat exchange facets 6111-6116 of a second intermediate heat exchange surface 1 segment 611 and the six third heat exchange facets of a second intermediate heat exchange surface 2 segment 612.

[0224] In some embodiments, such as Figure 29 As shown, in a second intermediate heat exchange surface segment 611, the widths of the third side 1-channel 6141, third side 2-channel 6142, third side 3-channel 6143, third side 4-channel 6144, third side 5-channel 6145, and third side 6-channel 6146 remain constant in the length Y direction. The third heat exchange surface segment 6111 has a first width W31, the third heat exchange surface segment 6112 has a third width W32, the third heat exchange surface segment 6123 has a third width W33, the third heat exchange surface segment 6114 has a fourth width W34, the third heat exchange surface segment 6125 has a fifth width W35, and the third heat exchange surface segment 6116 has a sixth width W36. The widths of the first segment W31, the third segment W32, the third segment W33, the fourth segment W34, the fifth segment W35, and the sixth segment W36 can be the same or different, without restriction. Thus, the width of a second intermediate heat exchange surface 610 is the sum of the widths of multiple third heat exchange segments. Specifically, Figure 25 In this context, the total width of a second intermediate heat exchange surface 610, i.e. the third heat exchange width W3, is the sum of the widths of the six heat exchange surfaces 6111-6116 of a second intermediate heat exchange surface 1 segment 611 and the six heat exchange surfaces of a second intermediate heat exchange surface 2 segment 612.

[0225] In some embodiments, the width of the side channel of a second intermediate heat exchange surface segment may vary along the length Y direction and is not a fixed value. In this case, the width of a third heat exchange surface is the average width of the third heat exchange surface in the length Y direction, and the total width of a second intermediate heat exchange surface, i.e., the third heat exchange width W3, is the sum of the average widths of multiple third heat exchange surfaces.

[0226] In some embodiments, such as Figure 28As shown, the third side channels of the two third side plates 61 and 62 combine to form the second heat exchange channel 64. Specifically, the second heat exchange channel 64 may include multiple sub-channels, and the side channels on each third side plate 61 and 62 may include multiple side branch channels. Each sub-channel includes at least one branch channel of one third side plate 61 and at least one side branch channel of the other third side plate 62, and the side branch channels constituting a sub-channel are interconnected. This arrangement divides the second heat exchange channel 64 into multiple sub-channels, and the heat exchange fluid in each sub-channel can simultaneously exchange heat with both third side plates, simplifying the design of the second heat exchange channel 64 and facilitating the manufacturing of thermal management components.

[0227] Specifically, see Figure 28 and Figure 29 The third side plate 61 has a third side isolation section 613, and the third side plate 62 has a fourth side isolation section 623. The third side isolation section 613 and the fourth side isolation section 623 are connected to form the third isolation section 63, which divides the intermediate heat management component 600 into a separated third flow channel segment 641 and a fourth flow channel segment 642. The third side plate 61 has six third side flow channels, namely third side 1 flow channel 6141, third side 2 flow channel 6142, third side 3 flow channel 6143, third side 4 flow channel 6144, third side 5 flow channel 6145, and third side 6 flow channel 6146. The third side plate 62 is symmetrically arranged with the third side plate 61 and also has six fourth side flow channels 6241-6246. The third side flow channels 6141-6146 and the fourth side flow channels 6241-6246 are mirror-symmetrical along the centerline of the thickness Z direction of the intermediate heat management component 600. Two opposite third side flow channels and the fourth side flow channel are connected to form six second sub-flow channels 6411-6416. Several third side partitions 625 and 626 are provided on the third side plates 61 and 62 respectively to separate the six second sub-flow channels 6411-6416. The fourth flow channel segment 643 has the same structure as the third flow channel segment 641. The second heat exchange flow channel 64 includes multiple second sub-flow channels arranged side-by-side along a direction perpendicular to the flow direction of the heat exchange fluid. Each second sub-flow channel includes at least two third side flow channels, and the at least two third side flow channels constituting a second sub-flow channel are interconnected.

[0228] Combination Figure 27 , Figure 29 It can be seen that the total width of a second intermediate heat exchange surface 610 of the third side plates 61 and 62, i.e., the third heat exchange width W3, is the sum of the widths of the six heat exchange surfaces of segment 1 of the second intermediate heat exchange surface 611 and the six heat exchange surfaces of segment 2 of the second intermediate heat exchange surface 612 (which can be considered as twice the sum of the widths of the six heat exchange surfaces 6111-6116 of segment 1 of the second intermediate heat exchange surface 611; the third heat exchange width W3 = 2 *

[0229] (W31 + W32 + W33 + W34 + W35 + W36)). Among them, the third heat exchange width W3 of at least one second intermediate heat exchange surface 610 of the third side plates 61, 62 of the intermediate heat management component 600 is smaller than the first heat exchange width W1 of at least one first heat exchange surface 410 of the edge heat management component 400, W3 < W1. The first heat exchange width of the first heat exchange surface 510 of the edge heat management component 500 is also W1.

[0230] Furthermore, the third heat exchange area S3 of at least one second intermediate heat exchange surface 610 of the third side plates 61, 62 of the intermediate heat management component 600 is also smaller than the first heat exchange area S1 of at least one first heat exchange surface 410 of the edge heat management component 400, S3 < S1. The heat exchange area of the first heat exchange surface 510 of the edge heat management component 500 is also the first heat exchange area S1.

[0231] In some embodiments, the ratio of the third heat exchange width W3 to the first heat exchange width W1 is between 0.1 - 0.9. For example, W3 / W1 can be selected from 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5,​​​​​​​​​​​​The difference in the temperature regulation system 2000 is that there are more than two intermediate thermal management components 600. In addition to the intermediate battery unit 14, 16 between each edge thermal management component 400, 500 and an adjacent intermediate thermal management component 600, there is also an intermediate battery unit 17 between two adjacent intermediate thermal management components 600; the temperature regulation method of the outer battery units 13, 15 and the intermediate battery units 14, 16 is the same. Figure 28 The adjustment method will not be repeated here. The temperature adjustment method of the intermediate battery unit 17 will be explained below.

[0235] Specifically, taking the intermediate battery unit 17 as an example, the upper and lower sides of the intermediate battery unit 17 exchange heat with the second intermediate heat exchange surface 610 of the third side plate 61 of the intermediate heat management component 600 on both sides. The heat exchange area is the third heat exchange area S3. Therefore, the total heat exchange area between the intermediate battery unit 16 and the two intermediate heat management components 600 is twice the third heat exchange area S3, that is, 2S3.

[0236] Since the ratio of the third heat exchange area S3 to the first heat exchange area S1 is between 0.1 and 0.9, in the battery of this embodiment, the ratio 2S3 / S1, which is twice the total heat exchange area of ​​the intermediate battery unit 17 and the outer battery units 13 and 15, to the first heat exchange area S1, can be between 0.2 and 1.8. In some embodiments, 2S3 / S1 can be 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, etc., but is not limited to these specific values. The total heat exchange area ratio 2S3 / S1 of the intermediate battery unit 17 and the outer battery units 13 and 15 can be selected within a suitable range according to actual needs. For example, when the intermediate battery unit 17 uses the same type of battery as the outer battery units 13 and 15, 2S3 / S1 can be between 0.3 and 1.2, for example, between 0.4 and 1.0, or between 0.3 and 0.6, or between 0.6 and 0.8. This allows the intermediate battery unit 17 and the outer battery units 13 and 15 to achieve essentially the same cooling effect, ensuring consistent temperature and performance, resulting in more stable battery performance, better reliability, and longer lifespan. As another example, when the heat dissipation of the intermediate battery unit 17 is poor, or when the intermediate battery unit 17 is of a different type than the outer battery units 13 and 15, requiring a stronger cooling effect, 2S3 / S1 can also be between 1.2 and 1.8, for example, between 1.3 and 1.6, or between 1.4 and 1.5. This provides the intermediate battery unit 17 with stronger temperature regulation performance. By adjusting the specific ratios of S1, S2, and S3, the temperature and performance of the intermediate battery unit 14 and intermediate battery units 14, 16 are kept consistent with those of the outer battery units 13, 15, resulting in more stable battery performance, better reliability, and longer lifespan.

[0237] Therefore, the battery in this embodiment, by adjusting the ratio of S1, S2, and S3, allows for free adjustment of the cooling effects of the intermediate battery units 17, 14, and 16 and the outer battery units 13 and 15. This enables compatibility with different types of batteries and meets the varying temperature regulation performance requirements of different battery components. Furthermore, by using an intermediate thermal management component, the battery can achieve temperature regulation for four or more battery units, with both side plates of each thermal management component used for temperature regulation of the battery units. The number of thermal management components is one less than the number of battery unit layers, reducing the overall thickness of the battery and providing better spatial adaptability. Furthermore, the second heat exchange area S2 and the third heat exchange area S3 can be the same or different. By combining different edge thermal management components and intermediate management components, and adjusting the size and ratio of the first heat exchange area S1, the second heat exchange area S2, and the third heat exchange area S3, various battery cell combination methods can be met. Differentiated design and more precise temperature regulation and control can be carried out for the different temperature regulation performance requirements of each layer of battery cooling units and the temperature differences of the heat exchange fluid in the thermal management components at various locations. This ensures that the temperature and performance of the intermediate battery unit 14 are consistent with those of the outer battery units 13 and 15, resulting in more stable battery performance, better reliability, and longer lifespan.

[0238] In this embodiment, by adjusting the width / area and the number of flow channels on the third side plates 61 and 62, the ratio between the third heat exchange area S3 and the first heat exchange area S1 can be precisely adjusted. According to actual needs, an appropriate ratio between the third heat exchange area S3 and the first heat exchange area S1 can be matched, thereby adjusting the ratio of (S2+S3) / S1 and 2S3 / S1.

[0239] In some embodiments, the two edge thermal management components 400, 500 and the intermediate thermal management component 600 are in heat exchange fluid communication. The heat exchange fluid communication can be in series or in parallel, and this application does not impose any limitation on either. Of course, the two edge thermal management components 400, 500 and the intermediate thermal management component can also be independent of each other and operate independently.

[0240] In some embodiments, such as Figure 32 As shown, battery cells 130, 140, and 150 are cylindrical batteries with a quadrilateral cross-section, and thermal management components 81 and 82 are formed into flat plates to fit the shapes of battery cells 130, 140, and 150. The cross-sectional structure of thermal management components 81 and 82 is similar to... Figure 23 The cross-sectional structures of the edge thermal management components 400 and 500 are the same.

[0241] In some embodiments, such as Figure 33As shown, battery cells 131, 141, and 151 are cylindrical batteries with a hexagonal cross-section. Thermal management components 91 and 92 are formed in a triangular waveform to match the shape of battery cells 131, 141, and 151. The cross-sectional structure of thermal management components 91 and 92 is similar to... Figure 23 The cross-sectional structures of the edge thermal management components 400 and 500 are the same.

[0242] exist Figure 32 and Figure 33 In the illustrated embodiment, the thermal management component is flat or wavy along its length to match the shape of the battery cell, allowing it to fit the battery cell well, achieve higher heat exchange efficiency, and realize better heat exchange effect.

[0243] A third aspect of this invention also provides an electrical device including the battery described in the above embodiments, the battery being used to provide electrical energy. The battery described in this application is applicable to various battery-powered electrical devices, such as mobile phones, portable devices, laptops, electric vehicles, electric cars, ships, spacecraft, electric toys, and power tools, etc. For example, spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc.; electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc.; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers.

[0244] For example, such as Figure 34 The diagram shown is a structural schematic of an electrical device according to another embodiment of this application. The electrical device can be a car, which can be a gasoline car, a natural gas car, or a new energy vehicle. A new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle, etc. The car includes a battery 2101, a controller 2102, and a motor 2103. The battery 2101 supplies power to the controller 2102 and the motor 2103, serving as the car's operating and driving power source. For example, the battery 2101 provides power for the car's starting, navigation, and operation. For instance, the battery 2101 supplies power to the controller 2102, which controls the battery 2101 to supply power to the motor 2103. The motor 2103 receives and uses the power from the battery 2101 as the car's driving power source, replacing or partially replacing gasoline or natural gas to provide driving power for the car.

[0245] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A thermal management component, characterized by, The application relates to a heat management component for a battery pack, comprising: a first set of heat exchange surfaces, comprising a plurality of first heat exchange surfaces, the plurality of first heat exchange surfaces being configured to cooperate with a plurality of outer battery cells located on one side of the heat management component for temperature regulation, each of the first heat exchange surfaces being configured to cooperate with one of the outer battery cells for temperature regulation; a second set of edge heat exchange surfaces, comprising a plurality of second edge heat exchange surfaces, the plurality of second edge heat exchange surfaces being configured to cooperate with a plurality of intermediate battery cells located on the other side of the heat management component for temperature regulation, each of the second edge heat exchange surfaces being configured to cooperate with one of the intermediate battery cells for temperature regulation; wherein each of the first heat exchange surfaces has a first heat exchange area S1, each of the second edge heat exchange surfaces has a second heat exchange area S2, the first heat exchange area S1 is greater than the second heat exchange area S2, the heat management component comprises a first heat exchange flow channel configured to provide a movement path for a heat exchange fluid, the heat management component comprises a first side plate and a second side plate, the second side plate is arranged opposite to the first side plate, and the first heat exchange flow channel is formed between the first side plate and the second side plate, wherein: the first set of heat exchange surfaces is formed on the first side plate, the heat exchange fluid passes through the first heat exchange surfaces to regulate the temperature of the outer battery cells; the second set of edge heat exchange surfaces is formed on the second side plate, the heat exchange fluid further passes through the second edge heat exchange surfaces to regulate the temperature of the intermediate battery cells; the first side plate is provided with a first side flow channel, and the first side flow channel is provided with a plurality of first heat exchange surfaces at positions corresponding to the plurality of outer battery cells; the second side plate is provided with a second side flow channel, and the second side flow channel is provided with a plurality of second edge heat exchange surfaces at positions corresponding to the plurality of intermediate battery cells; the first side flow channel and the second side flow channel cooperate to form the first heat exchange flow channel.

2. The thermal management component of claim 1, wherein, The first side flow channel is one, the first side flow channel is provided with one first heat exchange surface at a position corresponding to one outer battery cell, the first heat exchange area S1 is the surface area of the first heat exchange surface; the second side flow channel comprises a plurality of second side sub-flow channels arranged in parallel along a direction perpendicular to the flow direction of the heat exchange fluid, each second side sub-flow channel is provided with a second edge heat exchange sub-surface at a position corresponding to one intermediate battery cell; each of the second edge heat exchange surfaces comprises a plurality of second edge heat exchange sub-surfaces; the second heat exchange area S2 is the sum of the surface areas of the plurality of second edge heat exchange sub-surfaces.

3. The thermal management component of claim 2, wherein, The first side flow channel and the plurality of second side sub-flow channels are in communication to form the first heat exchange flow channel.

4. The thermal management component of claim 2 or 3, wherein, Each of the first heat exchange surfaces has a first heat exchange width W1, and each of the second edge heat exchange surfaces has a second heat exchange width W2, the first heat exchange width W1 being greater than the second heat exchange width W2; wherein the first heat exchange width W1 is the width of the first heat exchange surface; the second heat exchange width W2 is the sum of the widths of the plurality of second edge heat exchange sub-surfaces; the ratio of the second heat exchange width W2 to the first heat exchange width W1 is between 0.1 and 0.

9.

5. The thermal management component of claim 1, wherein, The first side flow channel comprises a plurality of first side sub-flow channels arranged side by side in a direction perpendicular to the flow direction of the heat exchange fluid, each first side sub-flow channel and the portion of one of the outer battery cells in cooperation forming a first heat exchange sub-surface; each of the first heat exchange surfaces comprises a plurality of first heat exchange sub-surfaces; the first heat exchange area S1 is the sum of the surface areas of the plurality of first heat exchange sub-surfaces; the second side flow channel comprises a plurality of second side sub-flow channels arranged side by side in a direction perpendicular to the flow direction of the heat exchange fluid, each second side sub-flow channel and the portion of one of the intermediate battery cells in cooperation forming a second edge heat exchange sub-surface; each of the second edge heat exchange surfaces comprises a plurality of second edge heat exchange sub-surfaces; the second heat exchange area S2 is the sum of the surface areas of the plurality of second edge heat exchange sub-surfaces.

6. The thermal management component of claim 5, wherein, The first heat exchange flow channel comprises a plurality of sub-flow channels arranged side by side in a direction perpendicular to the flow direction of the heat exchange fluid, each sub-flow channel comprising at least one first side sub-flow channel and at least one second side sub-flow channel, the first side sub-flow channel and the second side sub-flow channel constituting one of the sub-flow channels being in communication with each other.

7. The thermal management component of claim 5 or 6, wherein, Each of the first heat exchange surfaces has a first heat exchange width W1, and each of the second edge heat exchange surfaces has a second heat exchange width W2, the first heat exchange width W1 being greater than the second heat exchange width W2; wherein the first heat exchange width W1 is the sum of the widths of the plurality of first heat exchange sub-surfaces, and the second heat exchange width W2 is the sum of the widths of the plurality of second edge heat exchange sub-surfaces; the ratio of the second heat exchange width W2 to the first heat exchange width W1 is between 0.1 and 0.

9.

8. The thermal management component of any one of claims 1-3, wherein, Further comprising a first flocculation flow portion, the first flocculation flow portion being arranged in the first side flow channel and / or the second side flow channel, the first flocculation flow portion being used to generate flocculation flow for the heat exchange fluid flowing through the first side flow channel and / or the second side flow channel.

9. The thermal management component of claim 8, wherein, The first flocculation flow portion is arranged at a position in the first side flow channel that is not in cooperation with the outer battery cell, and / or the first flocculation flow portion is arranged at a position in the second side flow channel that is not in cooperation with the intermediate battery cell.

10. The thermal management component of any one of claims 1-3, wherein, The ratio of the second heat exchange area S2 to the first heat exchange area S1 is between 0.1 and 0.

9.

11. The thermal management component of any one of claims 1-3, wherein, Each of the first heat exchange surfaces is arranged in a width direction of the thermal management component, and the group of first heat exchange surfaces is arranged in a length direction of the thermal management component; and Each of the second edge heat exchange surfaces is arranged in a width direction of the thermal management component, and the group of second edge heat exchange surfaces is arranged in a length direction of the thermal management component.

12. A battery, characterized by Comprise: at least three layers of battery cells, including two layers of outer battery cells and at least one layer of middle battery cells, the at least one layer of middle battery cells being located between the two layers of outer battery cells; each layer of outer battery cells and each layer of middle battery cells including a plurality of battery cells; a temperature regulation system for heat exchanging with the outer battery cells and with the middle battery cells; the temperature regulation system including two groups of first heat exchange surfaces and a plurality of groups of second heat exchange surfaces, each group of first heat exchange surfaces including a plurality of first heat exchange surfaces, each group of second heat exchange surfaces including a plurality of second heat exchange surfaces; the first heat exchange surfaces and the second heat exchange surfaces being heat exchangeable with a heat exchange fluid inside the temperature regulation system; wherein, the temperature regulation system is configured such that: one side of each outer battery cell is in temperature regulation cooperation with one first heat exchange surface, each first heat exchange surface having a first heat exchange area S1; each layer of middle battery cells is disposed between two groups of second heat exchange surfaces, opposite sides of each layer of middle battery cells being in temperature regulation cooperation with adjacent groups of second heat exchange surfaces, respectively; opposite sides of each middle battery cell being in temperature regulation cooperation with adjacent second heat exchange surfaces, respectively; the first heat exchange area S1 is greater than a heat exchange area of the second heat exchange surfaces; the temperature regulation system includes two edge thermal management components, each of the edge thermal management components having a first heat exchange flow channel formed therein, the heat exchange flow channel providing a movement path for the heat exchange fluid; each of the edge thermal management components including a first side plate and a second side plate oppositely disposed; a group of the first heat exchange surfaces being formed on the first side plate of each of the edge thermal management components; the plurality of groups of second heat exchange surfaces includes two groups of second edge heat exchange surfaces, each group of second edge heat exchange surfaces including a plurality of second edge heat exchange surfaces; a group of the second edge heat exchange surfaces being formed on the second side plate of each of the edge thermal management components, respectively; each of the second edge heat exchange surfaces having a second heat exchange area S2; the first side plate of each of the edge thermal management components forming a first side flow channel, the first side flow channel forming the plurality of first heat exchange surfaces at a location where the first side flow channel cooperates with one layer of the outer battery cells; the second side plate of each of the edge thermal management components forming a second side flow channel, the second side flow channel forming the plurality of second edge heat exchange surfaces at a location where the second side flow channel cooperates with one layer of the middle battery cells; the first side flow channel and the second side flow channel combine to form the first heat exchange flow channel.

13. The battery of claim 12, wherein: a ratio of the heat exchange area of the second heat exchange surfaces to the first heat exchange area S1 is between 0.1 and 0.

9.

14. The battery of claim 12 or 13, wherein: the battery cells are three layers, including two layers of outer battery cells and one layer of middle battery cells; the second side plates of the two edge thermal management components are adjacent to each other, and the first side plates of the two edge thermal management components are oppositely directed. Each of the two edge thermal management components is provided with a layer of outer battery cells on the first side plate, one side of each of the outer battery cells is matched with a corresponding first heat exchange surface; Each of the two edge thermal management components is provided with a layer of outer battery cells on the first side plate, one side of each of the outer battery cells is matched with a corresponding first heat exchange surface; 15. The battery of claim 14, wherein, The ratio of the second heat exchange area S2 to the first heat exchange area S1 is between 0.1 and 0.

9.

16. The battery of claim 12 or 13, wherein, The battery cells are more than four layers, including two layers of outer battery cells and at least two layers of intermediate battery cells; The temperature regulation system further comprises at least one intermediate thermal management component, the intermediate thermal management component is formed with a second heat exchange flow channel for providing a movement path of the heat exchange fluid; each of the intermediate thermal management components comprises two third side plates located on opposite sides; the plurality of second heat exchange surfaces further comprises a plurality of second intermediate heat exchange surfaces, each of the third side plates is respectively formed with a group of the second intermediate heat exchange surfaces, each of the groups of the second intermediate heat exchange surfaces comprises a plurality of the second intermediate heat exchange surfaces; each of the second intermediate heat exchange surfaces has a third heat exchange area S3; the first heat exchange area S1 is greater than the third heat exchange area S3; The number of the intermediate thermal management components is the number of layers of the battery cells minus 3; The at least one intermediate thermal management component is arranged between the two edge thermal management components; the two second side plates of the two edge thermal management components are respectively adjacent to one third side plate of one intermediate thermal management component; the two first side plates of the two edge thermal management components are opposite to each other; Each of the two edge thermal management components is provided with a layer of outer battery cells on the first side plate, one side of each of the outer battery cells is matched with a corresponding first heat exchange surface; Each of the edge thermal management components is provided with a layer of intermediate battery cells between the edge thermal management component and an adjacent intermediate thermal management component; in the layer of intermediate battery cells matched with the edge thermal management component, one side of each of the intermediate battery cells is matched with one second edge heat exchange surface of the second side plate of the edge thermal management component, and the other side of each of the intermediate battery cells is matched with one second intermediate heat exchange surface of the third side plate of the intermediate thermal management component, and / or Each of the two adjacent intermediate thermal management components is provided with a layer of intermediate battery cells; in the layer of intermediate battery cells matched with the two intermediate thermal management components, two sides of each of the intermediate battery cells are respectively matched with one second intermediate heat exchange surface of the opposite third side plates of the two intermediate thermal management components.

17. The battery of claim 16, wherein, The ratio of the third heat exchange area S3 to the first heat exchange area S1 is between 0.1 and 0.9, and / or The ratio of the sum of the second heat exchange area S2 and the third heat exchange area S3 to the first heat exchange area S1 is between 0.2 and 1.

8.

18. The battery of claim 12, wherein, The first side flow channel is one, and a part of the first side flow channel matched with one of the outer battery cells forms the one first heat exchange surface, and the first heat exchange area S1 is the surface area of the first heat exchange surface; the second side flow channel includes a plurality of second side sub-flow channels arranged side by side in a direction perpendicular to the flow direction of the heat exchange fluid, and each second side sub-flow channel and a part of one of the intermediate battery cells form a second edge heat exchange sub-surface; the one second edge heat exchange surface includes a plurality of second edge heat exchange sub-surfaces matched with the intermediate battery cells; and the second heat exchange area S2 is the sum of the surface areas of the plurality of second edge heat exchange sub-surfaces.

19. The battery of claim 18, wherein, The first side flow channel and the plurality of second side sub-flow channels are in communication with each other to form the first heat exchange flow channel.

20. The battery of claim 18 or 19, wherein, Each of the first heat exchange surfaces has a first heat exchange width W1, and each of the second edge heat exchange surfaces has a second heat exchange width W2, and the first heat exchange width W1 is greater than the second heat exchange width W2; wherein the first heat exchange width W1 is the width of the part of the first side flow channel matched with one of the outer battery cells; the second heat exchange width W2 is the sum of the widths of the plurality of second edge heat exchange sub-surfaces; and the ratio of the second heat exchange width W2 to the first heat exchange width W1 is between 0.1 and 0.

9.

21. The battery of claim 18, wherein, The first side flow channel includes a plurality of first side sub-flow channels arranged side by side in a direction perpendicular to the flow direction of the heat exchange fluid, and each first side sub-flow channel and a part of one of the outer battery cells form a first heat exchange sub-surface; each of the first heat exchange surfaces includes a plurality of first heat exchange sub-surfaces matched with one of the outer battery cells; the first heat exchange area S1 is the sum of the surface areas of the plurality of first heat exchange sub-surfaces; the second side flow channel includes a plurality of second side sub-flow channels arranged side by side in a direction perpendicular to the flow direction of the heat exchange fluid, and each second side sub-flow channel and a part of one of the intermediate battery cells form a second edge heat exchange sub-surface; and each of the second edge heat exchange surfaces includes a plurality of second edge heat exchange sub-surfaces matched with one of the intermediate battery cells; and the second heat exchange area S2 is the sum of the surface areas of the plurality of second edge heat exchange sub-surfaces.

22. The battery of claim 21, wherein, Each of the first heat exchange surfaces has a first heat exchange width W1, and each of the second edge heat exchange surfaces has a second heat exchange width W2, and the first heat exchange width W1 is greater than the second heat exchange width W2; wherein the first heat exchange width W1 is the sum of the widths of the plurality of first heat exchange sub-surfaces, and the second heat exchange width W2 is the sum of the widths of the plurality of second edge heat exchange sub-surfaces; and the ratio of the second heat exchange width W2 to the first heat exchange width W1 is between 0.1 and 0.

9.

23. The battery of claim 21 or 22, wherein, The first heat exchange flow channel comprises a plurality of first sub-flow channels arranged side by side in a direction perpendicular to the flow direction of the heat exchange fluid, each first sub-flow channel comprising at least one first side branch and at least one second side branch, and the first side branch and the second side branch of a first sub-flow channel are in communication with each other.

24. The battery of claim 18, wherein, The edge thermal management component further comprises a first flocculation flow portion, which is arranged in the first side flow channel and / or the second side flow channel, and is used to cause the heat exchange fluid flowing through the first side flow channel and / or the second side flow channel to generate flocculation flow.

25. The battery of claim 24, wherein, The first flocculation flow portion is arranged at a position of the first side flow channel that does not cooperate with the outer battery cell, and / or the first flocculation flow portion is arranged at a position of the second side flow channel that does not cooperate with the intermediate battery cell.

26. The battery of claim 14, wherein, Each of the first heat exchange surfaces is distributed along the width direction of the edge thermal management component, and each group of the first heat exchange surfaces is arranged along the length direction of the edge thermal management component. Each of the second edge heat exchange surfaces is distributed along the width direction of the edge thermal management component, and each group of the second edge heat exchange surfaces is arranged along the length direction of the edge thermal management component.

27. The battery of claim 16, wherein, Each of the third side plates of the intermediate thermal management component is formed with a third side flow channel, and each third side flow channel forms a group of second intermediate heat exchange surfaces at a position cooperating with one layer of the intermediate battery cells. The third side flow channels of two opposite third side plates are combined to form the second heat exchange flow channel.

28. The battery of claim 27, wherein, The third side flow channel comprises a plurality of third side branch channels arranged side by side in a direction perpendicular to the flow direction of the heat exchange fluid, each third side branch channel forms a second intermediate heat exchange sub-surface at a position cooperating with one of the intermediate battery cells, each second intermediate heat exchange surface comprises a plurality of second intermediate heat exchange sub-surfaces cooperating with one intermediate battery cell, and the third heat exchange area S3 is the sum of the surface areas of the plurality of second intermediate heat exchange sub-surfaces.

29. The battery of claim 27 or 28, wherein, The intermediate thermal management component further comprises a second flocculation flow portion, which is arranged in the third side flow channel, and is used to cause the heat exchange fluid flowing through the third side flow channel to generate flocculation flow.

30. The battery of claim 29, wherein, The second flocculation flow portion is arranged at a position of the third side flow channel that does not cooperate with the intermediate battery cell.

31. The battery of claim 16, wherein, Each of the second intermediate heat exchange surfaces is distributed along the width direction of the intermediate thermal management component, and each group of the second intermediate heat exchange surfaces is arranged along the length direction of the intermediate thermal management component.

32. An electrical device, comprising: A battery comprising any one of the batteries as claimed in any one of claims 12-31.

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