Cooling structure, battery, and power consumption device

Abstract

This application provides a cooling structure, a battery, and a power consumption device. The cooling structure includes a side plate and a cooling passage located on at least one side of the side plate, wherein the side plate is configured to deform toward the side where the cooling passage is located, thereby generating a deformable amount, and the side plate has different deformable amounts in at least one direction. The side plate can deform toward the side where the cooling passage is located, generating a deformable amount, and the deformable amounts at different locations on the side plate are different. The sides of the material to be cooled that are in contact with the side plate have different degrees of expansion, and the different degrees of expansion generate different magnitudes of resistance forces in different regions of the side plate, and the different deformable amounts on the side plate provide the expansion space required for different degrees of expansion, allowing the material to be cooled to undergo different expansions in response to changes in internal stress, thereby maintaining or extending the service life of the material to be cooled.

Description

Technical Field

[0007] , , ,

[0001] [Cross - reference to Related Applications] This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on October 30, 2023, with application number 202311423067.1 and invention title "Cooling Structure, Battery and Power - consuming Device", and all of its content is incorporated herein by reference.

[0002] This application relates to the field of new energy technologies, and specifically, to cooling structures, batteries and power - consuming devices.

Background Art

[0003] Power batteries or energy storage batteries generate heat during charging and discharging, and generally adopt a cooling structure to lose this heat in a heat dissipation method by contact.

[0004] Differential expansion occurs in different regions on the side where the battery contacts the cooling structure. Due to the difference in regions, the resistance generated on the surface of the cooling structure in contact with it is also different. When the deformable amount that the cooling structure surface can provide is the same, the cooling structure surface cannot meet the different expansion requirements of different regions of the battery, resulting in a shortened service life of the battery.

Summary of the Invention

[0005] The purpose of the embodiments of this application is to provide a cooling structure, a battery and a power - consuming device for solving technical problems including, but not limited to, the problem that the service life of the battery is shortened because the conventional cooling structure cannot meet the expansion requirements of different regions of the battery.

[0006] The embodiments of this application adopt the following technical solutions.

[0007] According to a first aspect, a cooling structure is provided, the cooling structure includes a side plate and a cooling passage disposed on at least one side of the side plate. The side plate is configured to deform toward the side where the cooling passage is located, thereby generating a deformable amount, and the deformable amount at different positions of the side plate is different.

[0008] In the cooling structure according to the embodiment of this application, a cooling passage for the flow of a cooling medium is provided on at least one side of the side plate, and the material to be cooled and the side plate are in contact, allowing the cooling medium to remove heat from the material to be cooled.

[0009] The side plate deforms toward the side where the cooling passage is located, generating a deformable amount, and the deformable amount differs at different locations on the side plate. The sides of the material being cooled that are in contact with the side plate have different degrees of expansion, and these different degrees of expansion generate different magnitudes of resistance forces in different regions of the side plate. The different amounts of deformation on the side plate provide the expansion space required for different degrees of expansion, allowing the material being cooled to undergo different expansions in response to internal stresses, thereby maintaining or extending the service life of the material being cooled.

[0010] In some embodiments, the amount of deformation of the side plate decreases from the intermediate region of the side plate toward the edge region of the side plate.

[0011] Generally, the degree of expansion is greatest in the intermediate region of the surface of the material being cooled, and the degree of expansion tends to decrease from the intermediate region towards the edge region. By adapting to the expansion trend of the surface of the material being cooled, the side plates are installed so that the amount of deformability decreases from the intermediate region to the edge region, and the trend of change in the amount of deformability tends to coincide with the expansion trend, allowing the side plates to further satisfy the expansion demand of the material being cooled.

[0012] In some embodiments, the side plate includes a first deformation portion, a second deformation portion, and a third deformation portion that are sequentially installed from the intermediate region of the side plate toward the edge region of the side plate. The deformable amount of the first deformable portion is greater than or equal to the deformable amount of the second deformable portion, and the deformable amount of the second deformable portion is greater than the deformable amount of the third deformable portion.

[0013] By dividing the side plate into multiple different plate sections from the intermediate region to the edge region, and distinguishing and comparing the deformability of each plate section, a decreasing trend is achieved. This allows for finer adjustments to the deformability, better matching the expansion requirements of the material being cooled.

[0014] In some embodiments, the side plate includes two of the second deformations and two of the third deformations, The two second deformation portions are provided on opposite sides of the first deformation portion, and the two third deformation portions are provided on both sides of the two second deformation portions that are separated from the first deformation portion.

[0015] Considering that there are edge regions on both opposing sides of the intermediate region, the second and third deformation sections are both placed on opposite sides of the first deformation section, thereby satisfying the expansion requirements of the material to be cooled within the entire area where the side plate is in contact with the material to be cooled.

[0016] In some embodiments, the cooling structure includes two side plates that are installed opposite each other, and the cooling passage is provided between the two side plates.

[0017] Both side plates can deform toward the sides adjacent to each other, and a cooling material can be installed on either of the sides where the two side plates are separated. The cooling material on both sides is cooled by the cooling passage between the two side plates, satisfying the expansion requirements of the cooling material and improving the degree of integration.

[0018] In some embodiments, the cooling structure includes a plurality of partition plates provided between the two side plates, The partition plate extends along a first direction, and the plurality of partition plates are spaced apart along a second direction, and two adjacent partition plates and two side plates surround each other to form the cooling passage extending along the first direction. In the second direction, the amount of deformation of the side plate decreases from the intermediate region of the side plate toward the edge region.

[0019] Multiple partition plates are installed at intervals along the second direction, and the amount of deformation of the side plates tends to change in the second direction. This is more advantageous than having the amount of deformation of the side plates tend to change in the first direction, as it allows for the use of multiple partition plates to achieve arrangements with different amounts of deformation.

[0020] In some embodiments, in the second direction, the side plate includes a first deformation portion, a second deformation portion, and a third deformation portion, extending from the intermediate region of the side plate toward the edge region. The deformable amount of the first deformable part is greater than the deformable amount of the second deformable part, and the deformable amount of the second deformable part is greater than the deformable amount of the third deformable part.

[0021] In the second direction, the side plate is divided into multiple different plate sections from the intermediate region to the edge region, and the deformability of each plate section is distinguished and compared to show a decreasing trend. As a result, the change in the deformability in the second direction is made finer and better matches the expansion demand of the cooled material in the second direction.

[0022] In some embodiments, the partition plate includes a first partition plate connected at an angle to the first deformation portion and a second partition plate connected at an acute angle to the second deformation portion, wherein the acute angle between the second partition plate and the second deformation portion is smaller than the angle between the first partition plate and the first deformation portion.

[0023] The deformation resistance of the side plate tends to weaken from the edge region towards the intermediate region. The deformation resistance in the edge region is relatively high, which is advantageous for maintaining the contour shape of the cooling structure. The deformation resistance in the intermediate region is relatively weak, which is advantageous for receiving the resistance in the intermediate region where the degree of expansion of the cooled material is greatest, and for deforming together with it.

[0024] The deformation resistance of the third deformation part is the highest. The structures of the second deformation part and the first deformation part are substantially similar. Since the second deformation part is close to the third deformation part, the third deformation part reinforces the deformation resistance of the second deformation part. Therefore, although the structures of the second deformation part and the first deformation part are made to be substantially similar, based on the cooperative reinforcement effect of the third deformation part, the deformation resistance of the second deformation part is much higher than that of the first deformation part.

[0025] Relatively weaken the deformation resistance of the second deformation part, increase the deformable amount of the second deformation part, and satisfy the expansion demand of the local area of the cooled material corresponding thereto. However, in order to make it lower than that of the third deformation part and higher than the deformation resistance of the first deformation part, by providing the angle between the second partition plate and the second deformation part to be an acute angle, the acute angle formed by the second partition plate and the second deformation part is made smaller than the angle formed by the first partition plate and the first deformation part. The smaller the angle, the more advantageous it is for increasing the deformable amount. The deformable amount of the second deformation part increases, but is smaller than that of the first deformation part. The first deformation part, the second deformation part, and the third deformation part tend to decrease, satisfying the expansion change demand of the surface of the cooled material.

[0026] In some embodiments, the first partition plate and the first deformation part are connected at an acute angle.

[0027] The first partition plate and the first deformation part form an acute angle or a right angle. The smaller the angle, the more advantageous it is for increasing the deformable amount. The first partition plate and the first deformation part forming an acute angle is more advantageous for increasing the deformable amount of the first deformation part than forming a right angle, satisfying the resistance in the intermediate region where the expansion degree of the cooled material is the largest, and deforming therewith.

[0028] In some embodiments, the number of the second partition plates is one or more, and the number of the first partition plates is more than one. The pitch between two adjacent second partition plates is larger than the pitch between two adjacent first partition plates. And / or the pitch between the adjacent second partition plate and the first partition plate is larger than the pitch between two adjacent first partition plates.

[0029] For materials with a higher expansion change requirement, improving the angle between the partition plate and the deformable part alone is insufficient to provide sufficient deformable space. Therefore, based on the improvement of the angle between the partition plate and the deformable part, an increase in the pitch between the partition plates is made. A larger pitch is advantageous for increasing the amount of deformability, and by providing a greater amount of deformability, the materials with higher expansion requirements can be met.

[0030] In some embodiments, the partition plate includes one or more second partition plates connected to the second deformation portion, and a plurality of first partition plates connected to the first deformation portion. The pitch between two adjacent second partition plates is greater than the pitch between two adjacent first partition plates. And / or, the pitch between an adjacent second partition plate and the first partition plate is greater than the pitch between two adjacent first partition plates.

[0031] To relatively weaken the deformation resistance of the second deformation section and increase the amount of deformation possible in the second deformation section, thereby satisfying the expansion demand of the corresponding local area of ​​the cooled material, but lower than that of the third deformation section and higher than the deformation resistance of the first deformation section, the pitch between two adjacent second partition plates and / or the pitch between two adjacent second partition plates and the first partition plate is set to a large pitch, and the pitch between two adjacent first partition plates is set to a small pitch, with a larger pitch being advantageous for increasing the amount of deformation possible. The amount of deformation possible in the second deformation section increases, but is smaller than that of the first deformation section, and the first, second, and third deformation sections become smaller, satisfying the expansion change demand of the surface of the cooled material.

[0032] In some embodiments, the second partition plate and the second deformation portion are connected at an angle, the first partition plate and the first deformation portion are connected at an angle, and the angle between the second partition plate and the second deformation portion is less than or equal to the angle between the first partition plate and the first deformation portion.

[0033] For materials to be cooled with a higher demand for expansion, improving the pitch between partition plates alone is insufficient to provide sufficient deformable space. Therefore, based on the improvement in the pitch between partition plates, improvements to the angle between the partition plates and the deformable part are increased. A smaller angle is advantageous for increasing the amount of deformability, and by providing a larger amount of deformability, materials to be cooled with a higher expansion demand are met. Here, the angle between the first partition plate and the first deformable part and the angle between the second partition plate and the second deformable part may both be acute or right angles.

[0034] In some embodiments, the thickness of the second partition plate is smaller than the thickness of the first partition plate. And / or, the number of the second partition plates is less than the number of the first partition plates.

[0035] For materials to be cooled with a higher demand for expansion change, improving the pitch between partition plates and / or the angle between the partition plates and the deformable portion is insufficient to provide sufficient deformable space. Therefore, increasing improvements to the thickness and / or number of partition plates is beneficial, as a smaller thickness is advantageous for increasing the amount of deformable space, and a smaller number is also advantageous for increasing the amount of deformable space, thereby satisfying materials to be cooled with a higher expansion demand by providing a greater amount of deformable space.

[0036] In some embodiments, the thickness of the first deformed portion is the same as the thickness of the second deformed portion, the thickness of the second partition plate is the same as the thickness of the first partition plate, and the thickness of the third deformed portion is greater than the thicknesses of the first and second deformed portions.

[0037] Having a plate thickness greater than that of the first and second deformation sections is advantageous for maintaining the contour shape of the cooling structure. Having the same plate thickness as the first deformation section and the same plate thickness as the first partition plate is advantageous because it allows for a suitable improvement of the angle between the partition plate and the deformation section, as well as the distance between the partition plates, while maintaining matching plate thicknesses, and is not affected by the mismatch in plate thickness.

[0038] In some embodiments, the thickness of the third deformation portion gradually increases along the direction away from the second deformation portion, and the two ends of the two third deformation portions of the two side plates, away from the second deformation portion, are sealed and connected.

[0039] The two ends of the two third deformation sections that detach from the second deformation section are sealed and connected, thereby improving the deformation resistance of the third deformation section and compensating for the weakening effect on the deformation resistance of the third deformation section caused by the acute angle between the second partition plate and the second deformation section.

[0040] According to a second embodiment, a battery is provided, the battery comprising a battery cell and the cooling structure described above, wherein at least one side of the side plate is in contact with the side surface of the battery cell.

[0041] In the battery according to the embodiment of this application, a cooling passage for the flow of a cooling medium is provided on at least one side of the side plate, and at least one side of the side plate is in contact with the battery cell, allowing the cooling medium to remove heat from the battery cell through contact. Different regions on the battery cell that are in contact with the side plate have different degrees of expansion, and these different degrees of expansion generate different magnitudes of resistance forces in different regions of the side plate. The different amounts of deformation in different regions on the side plate provide the expansion space required for different degrees of expansion, allowing different regions of the battery cell to expand adaptively in response to changes in internal stress, thereby maintaining or extending the service life of the battery cell.

[0042] In some embodiments, the battery cell is rectangular in shape, and at least one side of the side plate is in contact with the surface of the battery cell that has the largest area.

[0043] The expansion of the largest surface area of ​​the battery cell shows a clear trend of change, with the degree of expansion being most pronounced in the intermediate region, and the degree of expansion tending to decrease from the intermediate region towards the edge region. At least one side of the side plate is in contact with the largest surface area of ​​the battery cell and is better suited to the expansion demand of the largest surface area.

[0044] In some embodiments, the cooling passage extends along the first direction, the battery includes a plurality of the battery cells sequentially arranged along the first direction, and the largest surface area of ​​each of the plurality of battery cells is in contact with the same side of the side plate. In a second direction perpendicular to the first direction, the amount of deformation of the side plate decreases from the intermediate region of the side plate toward the edge region.

[0045] By aligning the direction of the cooling passage with the installation direction of the multiple battery cells, the cooling structure can efficiently cool multiple battery cells. In the second direction, the side plates are arranged so that the amount of deformability decreases from the intermediate region to the edge region, satisfying the expansion demand of the largest surface area of ​​each battery cell installed along the first direction.

[0046] According to a third aspect, a power consumption device is provided, the power consumption device including the battery described above.

[0047] The power consumption device according to the embodiment of this application is fitted with the battery according to this application, and the battery according to the embodiment of this application is fitted with the cooling structure according to the embodiment of this application. The cooling structure allows different regions of the battery to expand adaptively in response to changes in internal stress, making it difficult to suppress the expansion of the battery, which is advantageous for improving the safety of the battery and the safety of the power consumption device.

[0048] The beneficial effects of the cooling structure according to the embodiment of this application are as follows:

[0049] In the cooling structure according to the embodiment of this application, a cooling passage for the flow of a cooling medium is provided on at least one side of the side plate, and the material to be cooled and the side plate are in contact, allowing the cooling medium to remove heat from the material to be cooled. The side plate deforms toward the side where the cooling passage is located, generating a deformable amount, and the deformable amount differs at different locations on the side plate. The surfaces of the material to be cooled that are in contact with the side plate have different degrees of expansion, and these different degrees of expansion generate different magnitudes of resistance forces in different regions of the side plate. The different amounts of deformation on the side plate provide the expansion space required for different degrees of expansion, allowing the material to be cooled to undergo different expansions in response to internal stress, thereby maintaining or extending the service life of the material to be cooled.

[0050] The beneficial effects of the battery according to the embodiment of this application are as follows:

[0051] In the battery according to the embodiment of this application, a cooling passage for the flow of a cooling medium is provided on at least one side of the side plate, and at least one side of the side plate is in contact with the battery cell, allowing the cooling medium to remove heat from the battery cell through contact. Different regions on the battery cell that are in contact with the side plate have different degrees of expansion, and these different degrees of expansion generate different magnitudes of resistance forces in different regions of the side plate. The different amounts of deformation in different regions on the side plate provide the expansion space required for different degrees of expansion, allowing different regions of the battery cell to expand adaptively in response to changes in internal stress, thereby maintaining or extending the service life of the battery cell.

[0052] The beneficial effects of the power consumption device according to the embodiment of this application are as follows:

[0053] The power consumption device according to the embodiment of this application is fitted with the battery according to this application, and the battery according to the embodiment of this application is fitted with the cooling structure according to the embodiment of this application. The cooling structure allows different regions of the battery to expand adaptively in response to changes in internal stress, making it difficult to suppress the expansion of the battery, which is advantageous for improving the safety of the battery and the safety of the power consumption device. [Brief explanation of the drawing]

[0054] To more clearly illustrate the technical concepts in the embodiments of this application, the following briefly introduces the drawings that may be used in the embodiments or exemplary technical descriptions. It is obvious that the drawings in the following description are only a few embodiments of this application, and those skilled in the art can obtain other drawings based on these without expending any creative effort. [Figure 1] This is a schematic diagram of the first viewpoint of the battery according to the embodiment of this application. [Figure 2] This is a schematic diagram of a second viewpoint of the battery according to the embodiment of this application. [Figure 3] This is a cross-sectional view in the AA direction in Figure 2. [Figure 4] This is a schematic diagram of a cooling structure according to an embodiment of this application. [Figure 5] This is a cross-sectional view in the CC direction in Figure 4. [Figure 6] This is a cross-sectional view in the BB direction in Figure 4. [Figure 7] This is a schematic diagram of a power consumption device according to an embodiment of the present application. [Modes for carrying out the invention]

[0055] To further clarify the purpose, technical proposal, and advantages of this application, the application will be described in more detail, linking it with the following drawings and embodiments. It should be understood that the specific embodiments described herein are for interpretation purposes only and are not intended to limit this application.

[0056] When a component is referred to as "fixed to" or "installed on" another component, it may be installed on or directly or indirectly on the other component. When one component is referred to as "connected to" another component, it may be connected directly or indirectly on the other component. Directions or positional relationships indicated by terms such as "up," "down," "left," and "right" are directions or positional relationships shown based on the drawings and are for the sole purpose of facilitating description. They do not indicate or imply that the mentioned device or element has a specific direction or must be configured and operated in a specific direction, and should not be understood as limitations on this application. A person skilled in the art will be able to understand the specific meaning of the above terms depending on the specific situation. The terms "first" and "second" are for the sole purpose of describing the purpose and should not be understood as implicitly indicating the number of technical features by showing or implying relative importance. Unless otherwise specifically limited, "plural" means two or more.

[0057] Power batteries or energy storage batteries generate heat during charging and discharging, and generally employ a cooling structure to dissipate this heat through contact. For example, a cooling plate is used that is in contact with the surface attached to the battery, and a medium passage for the flow of a cooling medium is provided inside the cooling plate.

[0058] The surface of a battery expands due to the heat inside the battery, and the degree of expansion differs depending on the region on the battery surface. Generally, the degree of expansion is most pronounced in the middle region of the battery surface, and the expansion tends to decrease from the middle region towards the edge region.

[0059] The deformation of the cooling structure provides the space necessary for the expansion and extension of the battery. Generally, the side plates of the cooling structure are in contact with the battery surface, and the interior of the cooling structure is divided into multiple medium passages by plate structures. The thickness of the side plates is set to be uniform, the thickness of the multiple plate structures is consistent, the connection angles between the plate structures and the side plates are consistent, and the degree of deformation of the cooling structure is set to be uniform.

[0060] If the degree of deformation provided by the cooling structure is uniform, the deformation of the cooling structure surface cannot meet the different expansion demands of different regions of the battery surface, and does not allow different regions of the battery to expand adaptively in response to changes in internal stress, thereby shortening the battery's lifespan.

[0061] Based on the above, the present invention provides a cooling structure that satisfies the different expansion demands of different regions of the battery, allows different regions of the battery to expand adaptively in response to changes in internal stress, and maintains or extends the normal service life of the battery. Referring to Figures 1 to 3, this cooling structure 10 includes a side plate 111 and a cooling passage 113 located on at least one side of the side plate 111. The side plate 111 is configured to deform toward the side where the cooling passage 113 is located, thereby generating a deformable amount, and the deformable amounts at different locations of the side plate 111 are different.

[0062] In the provided cooling structure 10, a cooling passage 113 through which a cooling medium can flow is provided on at least one side of the side plate 111, and the side plate 111 and the battery 100 are in contact, allowing the cooling medium to remove heat from the battery 100. The side plate 111 deforms toward the side where the cooling passage 113 is located, generating a deformable amount, and the deformable amount differs in different regions of the side plate 111. The degree of expansion differs in different regions of the battery 100 that are in contact with the side plate 111, and the different degrees of expansion generate different magnitudes of resistance forces in different regions of the side plate 111. The different amounts of deformation in different regions of the side plate 111 provide the expansion space required for different degrees of expansion, allowing different regions of the battery 100 to expand adaptively in response to changes in internal stress, thereby maintaining or extending the service life of the battery 100.

[0063] Referring to Figures 1 to 3, the battery 100 according to the embodiment of this application may be used in, but is not limited to, power-consuming devices 1000 such as vehicles, ships, or aircraft. The power supply system of the power-consuming device 1000 can be configured using the battery 100 equipped with the cooling structure 10 according to the embodiment of this application, which is advantageous for maintaining or extending the service life of the battery 100 and the power-consuming device 1000, and can improve the safety reliability of the battery 100 and the power-consuming device 1000 during use.

[0064] In some embodiments, the battery 100 is a physical module comprising one or more battery cells 101 to provide voltage and capacitance. For example, it may include battery cells 101, a battery 100 module, or a battery 100 pack. Generally, the battery 100 comprises a monomer battery 100 and a housing for housing the monomer battery 100, the housing being used to house and package one or more battery cells 101 or a battery 100 module, and the housing being used to protect the battery cells 101 and prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells 101.

[0065] The battery cell 101 may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, and the embodiments of this application are not limited thereto. The battery cell 101 may have a cylindrical, flattened, rectangular parallelepiped, or other shape, and the embodiments of this application are not limited thereto. The battery cell 101 can be classified into three types based on the packaging method: cylindrical battery cells, rectangular battery cells, and pouch battery cells, and the embodiments of this application are not limited thereto.

[0066] A battery cell 101 is the smallest unit that makes up a battery 100. In a battery 100, there may be multiple battery cells 101, and the multiple battery cells 101 may be connected in series, in parallel, or in series-parallel connection. Series-parallel connection means that among the multiple battery cells 101, there are both series and parallel connections. Multiple battery cells 101 may be directly connected in series, in parallel, or in series-parallel connection, and then the entire assembly made up of multiple battery cells 101 may be housed in a casing. Of course, in a battery 100, multiple battery cells 101 may first be connected in series, in parallel, or in series-parallel connection to form a battery 100 module, and then multiple battery 100 modules may be connected in series, in parallel, or in series-parallel connection to form the whole, and then housed in a casing.

[0067] The power consumption devices according to the embodiments of this application may be, but are not limited to, mobile phones, tablets, laptop computers, electric toys, power tools, battery cars, electric vehicles, steamships, and aerospace aircraft. Here, electric toys may include stationary or mobile electric toys, such as game consoles, electric car toys, electric steamship toys and electric airplane toys, and aerospace aircraft may include airplanes, rockets, space shuttles and spacecraft.

[0068] Here, the vehicle may be a fuel-oil vehicle, a gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or a range extender vehicle. A battery 100 is installed inside the vehicle, and the battery 100 may be installed at the bottom, front, or rear of the vehicle. The battery 100 may be used to power the vehicle; for example, the battery 100 can be used as the operating power source for the vehicle.

[0069] As shown in Figure 7, the vehicle may further include a controller 1001 and a motor 1002, the controller 1001 being used to control the battery 100 to supply power to the motor 1002, for example, to meet the operating power consumption requirements during vehicle startup, navigation, and driving. In some embodiments, the battery 100 can provide driving power to the vehicle not only as an operating power source for the vehicle but also as a driving power source for the vehicle, in place of or in part of fuel oil or natural gas.

[0070] Herein, the cooling structure 10, battery 100, and power consumption device 1000 according to the embodiment of this application will be described.

[0071] Referring to Figures 1 to 6, the cooling structure 10 according to the embodiment of this application includes a side plate 111 and a cooling passage 113 located on at least one side of the side plate 111, wherein the side plate 111 is configured to deform toward the side where the cooling passage 113 is located, thereby generating a deformable amount, and the deformable amounts at different positions of the side plate 111 are different.

[0072] Cooling refers to the process of lowering the temperature of a heat-generating object by dissipating its heat, and the cooling structure 10 refers to a structure that can realize the cooling process, such as a cooling plate.

[0073] Referring to Figures 4 and 5, the cooling structure 10 generally includes a cooling body 11, an inlet structure 12, and an outlet structure 13. A cooling passage 113 is arranged inside the cooling body 11, an inlet 120 is provided in the inlet structure 12, and an outlet 130 is provided on the outlet structure 13. The inlet 120 and outlet 130 communicate with the cooling passage 113, respectively. The outer surface of the material to be cooled is in contact with the outer surface of the cooling body 11, and the low-temperature cooling medium enters the cooling passage 113 from the inlet 120. The cooling medium and the material to be cooled come into contact with the inner and outer surfaces of the cooling body 11, respectively, completing heat exchange. The temperature of the low-temperature cooling medium rises due to the heat of the material to be cooled, and the high-temperature cooling medium flows out of the cooling passage 113 through the outlet 130, removing heat from the material to be cooled.

[0074] The side plate 111 is a plate structure that forms the outline of at least a part of the cooling body 11.

[0075] In some embodiments, a cooling passage 113 is arranged on one side of the side plate 111, with the side plate 111 forming a component of the passage wall of the cooling passage 113. The other side of the side plate 111, separated from the other side, is in contact with the material to be cooled, and the side plate 111 becomes a transfer medium through which heat is exchanged between the cooling medium and the material to be cooled. On one side, that is, the side plate toward the side of the material to be cooled, the side plate has a different amount of deformability.

[0076] In some other embodiments, cooling passages 113 are arranged on both sides of the side plate 111, and the side plate 111 serves as a component of the passage walls of the cooling passages 113 on both sides. Both sides of the side plate 111 can come into contact with the material to be cooled, and the side plate 111 becomes a transfer medium through which heat is exchanged between the cooling medium and the material to be cooled.

[0077] On the two sides, that is, on the sides where the materials to be cooled on both sides face the intermediate side plate, the side plate has different amounts of deformability relative to these two sides. Because the presence of cooling passages on both sides provides space for deformability in both directions, the two directions located on the same straight line can each have opposite amounts of deformability, and the cooling passages absorb the deformation in this part.

[0078] Generally, the cooling body 11 is a single-piece molded structure, and the side plate 111 is integrally connected to the other parts of the cooling body 11 and is part of the overall contour structure of the cooling body 11. Generally, the side plate 111 may also refer to the side plate structure having the largest surface area on the cooling body 11.

[0079] Generally, the cooling body 11 has one or more side plates 111 of the largest area, and these side plates 111 have a certain extended area and thickness, and the ratio of extended area to thickness is relatively large. A relatively large extended area is advantageous for increasing the contact area between the cooling body 11 and the material to be cooled, and is advantageous for improving cooling efficiency. A relatively small thickness is advantageous for the low-temperature cooling medium and the high-temperature material to be cooled to complete heat exchange quickly, and is advantageous for improving cooling efficiency.

[0080] Here, integral molding refers to a process in which a material is constructed into a predetermined shape by deformation or extension, or a predetermined shape is retained by partially removing a material, and includes, but is not limited to, the extension of the same material or the sequential extension of different materials, and includes, but is not limited to, a process in which a blank material is pressed and deformed using a press machine to finally form a predetermined shape, or a process in which a blank material is forged and deformed using a forging tool to finally form a predetermined shape, or a process in which a portion of the material of a blank material is removed using cutting equipment to retain a portion having a predetermined shape, or a process in which a liquid material is cast into a casting cavity that conforms to the shape of the member, and cooled to obtain the member.

[0081] Here, the process of obtaining a component by casting a liquid material into a casting cavity that conforms to the shape of the component may involve obtaining a complete component in a single cavity, into which one or various materials may be cast. Alternatively, a part of the component may be obtained in one cavity, the part of the component may be transferred to another cavity, and another part of the component may be obtained in the other cavity. By analogy, different parts of a complete component may be formed sequentially in different cavities, and the materials of the different parts of the complete component may be the same or different.

[0082] Referring to Figure 5, the cooling passage 113 is a passage structure located inside the cooling body 11, and has a constant extension length and cross-sectional size. The constant extension length is advantageous for extending the time the cooling medium flows through the cooling passage 113, and is advantageous for fully utilizing the cooling performance of the cooling medium. The constant cross-sectional size is advantageous for measuring the amount of cooling medium passing per unit time, and is advantageous for maximizing the cooling performance of the cooling medium.

[0083] Referring to Figures 5 and 6, the side plate 111 serves as a heat exchange transfer portion, with a cooling passage 113 positioned on one side of the side plate 111, and the side plate 111 is configured as a component of the passage wall of the cooling passage 113. Generally, the cooling body 11 has multiple cooling passages 113, each of which occupies a portion of the side plate 111, and the cooling medium in each of the multiple cooling passages 113 completes heat exchange with the material to be cooled through a portion of the side plate 111.

[0084] Deformation is the process by which a structure, subjected to a force, changes the relative positions of its material particles, ultimately leading to a change in its external form. Deformability is the amount of change that a structure undergoes when subjected to an oriented external force, changing its external form along a predetermined direction. Generally, deformation is a regional deformation formed by the morphological changes of multiple points in a structure, while deformability is the amount of change measured using regional deformation, where at least a portion of the structure is deformed.

[0085] Generally, the deformation of an entity structure can be quantitatively measured using known deformation measurement techniques. Deformation measurement techniques involve measuring the deformation of a structural object, thereby facilitating the understanding of various factors related to the direction, magnitude, spatial distribution, and temporal changes of that deformation, and enabling accurate analysis and prediction.

[0086] Generally, deformation measurement techniques can be broadly divided into two types. One type obtains deformation data by acquiring external morphological information of the deformation region and analyzing or calculating the external morphological information. The other type obtains deformation data by acquiring internal stress information or pressure load information of the deformation region and analyzing or calculating the internal stress information or pressure load.

[0087] For example, deformation measurements can be performed using several relatively common measurement methods. These common measurement methods generally involve obtaining specific geometric parameters using instruments and calculating the required deformation tendency or amount using geometric principles. These methods include, but are not limited to, precision leveling methods using optical or electronic levels, triangulation elevation methods using electromagnetic distance meters, triangulation edge measurement methods, wire measurement methods, and crossover measurement methods.

[0088] Several measurement methods based on image processing technology may be employed, including but not limited to digital imaging measurement methods and real-time imaging measurement methods. Based on the relatively large amount of information in the captured images obtained by digital or real-time imaging, the relatively comprehensive and accurate captured information, and the high utilization rate of this information, the deformation process and the corresponding deformation amount can be rapidly obtained. Since the captured information can obtain highly accurate deformation information, the deformation amount at any point can be confirmed with high accuracy using the imaging measurement method, and it is applicable to local deformation information with a relatively small measurement range.

[0089] Deformation measurements may be performed using several relatively specialized measurement methods, including, but not limited to, collimation measurement using a laser collimator, deflection curve measurement using an inclinometer, and micro-distance precision measurement using an indium tile wire scale distance measuring instrument. These specialized measurement methods enable automatic and remote monitoring, offer relatively high measurement accuracy and efficiency, and are applicable to measuring local deformation information over a relatively small range.

[0090] Deformation data may be acquired by a microsensor device array and by analyzing the deformation data, and this includes, but is not limited to, displacement sensor arrays, acceleration sensor arrays, and optical fiber grating strain sensor arrays. Here, the optical fiber grating strain sensor array includes, but is not limited to, optical fiber grating strain sensor arrays and / or optical fiber grating temperature sensor arrays.

[0091] The bending deformation and stress changes of the plate structure may be calculated using the equivalent stiffness method, or a force sensor array or piezoelectric ceramics may be used to acquire pressure loads and analyze the corresponding bending deformation and stress changes, or the displacement deformation of the structure may be measured based on the lateral cascade connection target measurement method.

[0092] The deformation measurement methods listed above are all known technologies, and only the parts of known deformation measurement methods are listed. What needs to be explained is that any deformation data measurement method that can realize deformation of the plate body or surface of a plate structure within different regions is applicable to the deformation measurement of the side plate 111 of the cooling structure 10 in the embodiment of this application.

[0093] Furthermore, the deformation measurement of the side plate 111 of the cooling structure 10 in the embodiment of this application may involve specific numerical measurements for deformation in different regions, analysis and acquisition of change trends based on specific numerical values, and the corresponding expansion trend of the material to be cooled being satisfied with this change trend. Here, specific numerical measurements include, but are not limited to, numerical measurements of consecutive densely packed points or numerical measurements of multiple polar points.

[0094] Alternatively, the deformation measurement of the side plate 111 of the cooling structure 10 in the embodiment of this application may involve directly acquiring the change trend of the entire deformation region and satisfying the corresponding expansion trend of the material to be cooled, and may include, but is not limited to, acquiring the visualization trend of the entire deformation region by image processing technology or simulation generation technology.

[0095] In the cooling structure 10 according to the embodiment of this application, a cooling passage 113 for the flow of a cooling medium is provided on at least one side of the side plate 111, and the material to be cooled and the side plate 111 are in contact, allowing the cooling medium to remove heat from the material to be cooled.

[0096] The side plate 111 deforms toward the side where the cooling passage 113 is located, generating a deformable amount, and the deformable amount at different locations on the side plate 111 is different. The sides of the material to be cooled that are in contact with the side plate 111 have different degrees of expansion, and different degrees of expansion generate different magnitudes of resistance forces in different regions of the side plate 111. Different amounts of deformation on the side plate 111 provide the expansion space required for different degrees of expansion, allowing the material to be cooled to undergo different expansions in response to internal stress, thereby maintaining or extending the service life of the material to be cooled.

[0097] In some embodiments, a cooling passage 113 for the flow of a cooling medium is provided on one side of the side plate 111 of the cooling structure 10, while the other side of the side plate 111 is in contact with the material to be cooled and is used to allow the cooling medium to absorb heat from the material to be cooled by contact.

[0098] The side plate 111 deforms toward the side where the cooling passage 113 is located, generating a deformable amount, and the deformable amount differs in different regions of the side plate 111. The degree of expansion differs in different regions of the material being cooled that are in contact with the side plate 111, and these different degrees of expansion generate resistance forces of different magnitudes in different regions of the side plate 111. The different amounts of deformation in different regions of the side plate 111 provide the necessary expansion space for different degrees of expansion, allowing different regions of the material being cooled to expand adaptively in response to changes in internal stress, thereby maintaining or extending the service life of the material being cooled.

[0099] In some embodiments, the amount of deformation of the side plate 111 decreases from the intermediate region of the side plate 111 toward the edge region of the side plate 111.

[0100] The intermediate region of the side plate 111 is the plate region located in the center of the side plate 111, and the edge region of the side plate 111 is the plate region located outside the intermediate region and forming the outline of the side plate 111.

[0101] For example, referring to Figure 5, the edge regions may be provided on both sides along the first direction of the intermediate region, and / or the edge regions may be provided on both sides along the second direction of the intermediate region, where the first direction is perpendicular to the second direction.

[0102] As shown in Figure 4, here we have a direction a in which the intermediate region of the side plate 111 moves toward the edge region, and direction a may be any one of the directions that diverge from the intermediate region toward the edge region.

[0103] In some embodiments, the amount of deformation of the side plate 111 tends to decrease from the intermediate region toward the edge region in either the first or second direction.

[0104] Generally, to improve cooling efficiency, the entire surface area of ​​the side plate 111 is in contact with the material to be cooled, and the cooling performance is improved by making maximum use of the surface area of ​​the side plate 111.

[0105] Furthermore, when the number of cooling units 11 and the cooling material is arranged in a 1:1 ratio, the two adopt a contact method in which the cooling material covers the side plate 111, bringing the intermediate region of the side plate 111 into contact with the intermediate region of the surface of the cooling material, and positioning the edge region of the side plate 111 inside the edge of this surface, or arranging them in the same row.

[0106] Alternatively, if the number of cooling units 11 is arranged in a one-to-many ratio, that is, if one cooling unit 11 cools multiple materials to be cooled in correspondence, the multiple materials to be cooled have the same side facing the surface and in contact with the side plate 111, and the multiple materials to be cooled can be arranged in any array shape, with the edge regions of the side plate 111 located inside the edges of the same side surfaces of this array, or arranged in the same row.

[0107] For example, multiple cooling materials are arranged sequentially along a first direction, and edge regions having a difference in deformability between the intermediate region on the side plate and the side plate may be provided on at least both sides of the intermediate region on the side plate along a second direction, and are located inside the edges of the multiple cooling materials along the second direction.

[0108] In some embodiments, the amount of deformation of the side plate 111 decreases in a gradient from the intermediate region to the edge region in either the first or second direction.

[0109] The gradual decrease in size means that the side plate 111 is divided into slightly different plate sections from the intermediate region to the edge region, and each plate section occupies a certain size in the direction from the intermediate region toward the edge region, and the deformable amount of the different plate sections in this direction decreases sequentially, while the deformable amount of different regions of the same plate section is approximately the same. Here, the size occupied by the different plate sections in the direction from the intermediate region toward the edge region may be the same or different, allowing for different degrees of expansion to occur in regions of different sizes of the cooled material.

[0110] It should be explained that the size occupied by different plate sections in the direction from the intermediate region of the side plate 111 toward the edge region of the side plate 111 does not necessarily correlate with the amount of deformation they can provide. One plate section may occupy a relatively large size in the direction from the intermediate region of the side plate 111 toward the edge region of the side plate 111, but can provide a relatively small amount of deformation. Alternatively, one plate section may occupy a relatively small size in the direction from the intermediate region of the side plate 111 toward the edge region of the side plate 111, but can provide a relatively large amount of deformation.

[0111] Of course, in some other embodiments, the amount of deformation of the side plate 111 can be continuously and gradually decreasing from the intermediate region of the side plate 111 toward the edge region of the side plate 111, and this can be adapted to the case where the degree of expansion of the material being cooled is continuously and gradually decreasing from its intermediate region toward the edge region.

[0112] Generally speaking, taking a rectangular battery cell 101 as an example, the largest surface area on it is in contact with the largest side area of ​​the cooling body 11. The expansion in the middle region of this largest surface area is the most obvious, and the overall degree of expansion tends to weaken from the middle region towards the edge region. Since this weakening trend is relatively gradual and there are no obvious abrupt changes, it can be understood that the expansion trend is continuously formed by different expansions in multiple different regions, and the expansion change discipline in multiple different regions weakens approximately from the middle region towards the edge region.

[0113] When designing the side plate 111, it is possible to adapt to the expansion change rules of multiple different regions, and the deformable amount of the side plate 111 decreases in a gradient manner. In other words, the deformable amounts of different plate sections are designed in a disciplined manner, and the size occupied by different plate sections on the side plate in the direction from the intermediate region toward the edge region can be made to relatively match the expansion tendency of the cooled material, in contrast to the size occupied by different regions on the cooled material.

[0114] Generally, the degree of expansion is greatest in the intermediate region of the surface of the material being cooled, and the degree of expansion tends to decrease from the intermediate region towards the edge region. By adapting to the expansion trend of the surface of the material being cooled, the side plates 111 are installed such that the amount of deformability decreases in a gradient from the intermediate region to the edge region, and the change in the amount of deformability of the side plates tends to coincide with the expansion trend of the material being cooled, allowing the side plates 111 to further satisfy the expansion demand of the material being cooled.

[0115] Referring to Figures 4 and 6, in some embodiments, the side plate 111 includes a first deformable portion 1111, a second deformable portion 1112, and a third deformable portion 1113, which are sequentially installed from the intermediate region of the side plate 111 toward the edge region of the side plate 111. The deformable amount of the first deformable portion 1111 is greater than or equal to the deformable amount of the second deformable portion 1112, and the deformable amount of the second deformable portion 1112 is greater than the deformable amount of the third deformable portion 1113.

[0116] The first deformation portion 1111 is a plate portion located in the intermediate region of the side plate 111, occupying a certain area in the intermediate region of the side plate 111. When the side plate 111 has a geometric center, the overlap between the geometric center of the first deformation portion 1111 and the geometric center of the side plate 111 is optimal.

[0117] The third deformable portion 1113 is the plate portion of the edge region of the side plate 111, and can also be understood as the part that constitutes the contour of the side plate 111. The role of the third deformable portion 1113 is to receive the resistance of the material being cooled while maintaining the contour shape of the side plate 111 so as not to be significantly altered by the material being cooled.

[0118] The second deformation portion 1112 is a plate portion provided between the first deformation portion 1111 and the second deformation portion 1112. In the direction in which the intermediate region moves toward the edge region, the first deformation portion 1111, the second deformation portion 1112, and the third deformation portion 1113 each occupy a certain size, and the sizes occupied by the different deformation portions may be the same or different.

[0119] For example, generally, the boundary line is the center line L extending along the first direction of the side plate 111, and taking one side of the center line L as an example, the first deformation part 1111, the second deformation part 1112, and the third deformation part 1113 move away from the center line L in order along a direction perpendicular to the center line L. The size occupied by the first deformation part 1111 is larger than the size occupied by the second deformation part 1112 and larger than the size occupied by the third deformation part 1113, but the size occupied by the second deformation part 1112 is approximately equal to the size occupied by the third deformation part 1113.

[0120] In some embodiments, as shown in Figure 4, both sides of the side plate 111 located on the center line L may be substantially symmetrical. In particular, when one side plate 111 accommodates multiple materials to be cooled, the multiple materials to be cooled are installed sequentially along the center line L, and the first deformation section 1111, the second deformation section 1112, and the third deformation section 1113 provide deformation space for the materials to be cooled in a direction perpendicular to the center line, thereby satisfying both the cooling requirements and expansion requirements of the multiple materials to be cooled. Of course, the tendency for the amount of deformation to be substantially the same within the size occupied by each deformation section reduces the overall trend in a gradient manner.

[0121] Generally, in some embodiments, the cooling structure 10 has an intermediate region and an edge region, and in the direction perpendicular to the center line L, the size occupied by the edge region and the size occupied by the intermediate region are approximately equal, and the two have a relatively clear difference in deformability. The intermediate region of the side plate 111 coincides with the intermediate region of the material to be cooled and provides a deformable space that is adaptive to its expansion. The edge region of the side plate 111 is to receive the resistance of the material to be cooled while maintaining the contour shape of the side plate 111 so as not to be greatly altered by the material to be cooled.

[0122] Rather than a configuration in which the entire deformability of the side plate 111 is uniformly distributed, having a relatively clear difference in deformability between the intermediate region and the edge region allows the expansion demand of the cooled material to be satisfied to a certain extent.

[0123] Based on the previous embodiment, in order to relatively miniaturize and adapt the side plate 111 to the expansion demand of the material to be cooled, the portion of the edge region closer to the intermediate region (i.e., the second deformable portion 1112) in the previous embodiment is designed to be softer, that is, its deformability is increased compared to the portion away from the intermediate region (i.e., the third deformable portion 1113), and the deformable space it provides is larger, but still smaller than or equal to the deformability provided by the intermediate region (i.e., the first deformable portion 1111).

[0124] Compared to the previous embodiment, the second deformable portion 1112 is added between the first deformable portion 1111 and the third deformable portion 1113, and the amount of deformability between the first deformable portion 1111 and the third deformable portion 1113 is increased, thereby making the side plate 111 better suited to the expansion demand of the material being cooled, further maintaining or extending the service life of the material being cooled.

[0125] Similarly, in one embodiment, the design area of ​​the deformable portion of the first deformable portion 1111 is increased, and the deformable portion of the increased portion is within the range between the original first deformable portion 1111 and the third deformable portion 1113, thereby making the side plate 111 better suited to the expansion demands of the material to be cooled.

[0126] The side plate 111 is divided into multiple different plate sections from the intermediate region to the edge region, and the deformability of each plate section is distinguished and compared to create a gradient change. This makes the change in deformability more refined and better suited to the expansion requirements of the material being cooled.

[0127] In some embodiments, the side plate 111 includes two second deformation sections 1112 and two third deformation sections 1113. The two second deformation sections 1112 are provided on opposite sides of the first deformation section 1111, and the two third deformation sections 1113 are provided on the sides of the two second deformation sections 1112 that are separated from the first deformation section 1111.

[0128] Considering that there are edge regions on both opposing sides of the intermediate region, the second deformation section 1112 and the third deformation section 1113 are both placed on opposite sides of the first deformation section 1111, thereby satisfying the expansion demand of the material to be cooled within the entire area where the side plate 111 is in contact with the material to be cooled.

[0129] For example, when the number of cooling bodies 11 and materials to be cooled is arranged in a 1:1 ratio, the two second deformation parts 1112 are provided on both sides of the first deformation part 1111 along the first direction, and the two third deformation parts 1113 are provided on both sides of the two second deformation parts 1112 moving away from the first deformation part 1111 along the first direction. Alternatively, the two second deformation parts 1112 are provided on both sides of the first deformation part 1111 along the second direction, and the two third deformation parts 1113 are provided on both sides of the two second deformation parts 1112 moving away from the first deformation part 1111 along the second direction. Alternatively, the second deformation parts 1112 are provided on both sides of the first deformation part 1111 along the first and second directions, respectively, so as to form an enclosure, and the third deformation part 1113 is provided on the outer circumference of the second deformation part 1112 so as to form an enclosure.

[0130] For example, when the number of cooling bodies 11 and the number of materials to be cooled are arranged in a one-to-many ratio, the multiple materials to be cooled are installed along a first direction, the two second deformation parts 1112 are provided on both sides of the first deformation part 1111 along the second direction, and the two third deformation parts 1113 are provided on both sides of the two second deformation parts 1112 that move away from the first deformation part 1111 along the second direction.

[0131] In some embodiments, the cooling structure 10 includes two side plates 111 that are installed opposite each other, and a cooling passage 113 is provided between the two side plates 111.

[0132] Both side plates 111 can deform toward the sides adjacent to each other, and a material to be cooled can be installed on either of the sides where the two side plates 111 are separated. The material to be cooled on both sides is cooled through the cooling passage 113 between the two side plates 111, satisfying the expansion requirements of the material to be cooled and improving the degree of integration.

[0133] In some embodiments, the cooling structure 10 includes a plurality of partition plates 112 provided between two side plates 111. The partition plates 112 extend along a first direction, and the plurality of partition plates 112 are spaced apart along a second direction, with two adjacent partition plates 112 and two side plates 111 forming a surrounding cooling passage 113 extending along the first direction. In the second direction, the amount of deformation of the side plates 111 decreases in a gradient from the intermediate region to the edge region.

[0134] The partition plate 112 is a plate structure in which the ratio of the total area to the thickness is relatively large, and the ratio of the length to the width is also relatively large, where the total area is the area formed by the length and width being enclosed.

[0135] Generally, the partition plate 112 and the side plate 111 are integrally molded, and the plate thickness of the partition plate 112, the connection angle between the partition plate 112 and the side plate 111, and the pitch between adjacent partition plates 112 can all be design parameters for the deformability of the side plate 111, and by changing these parameters, the deformability of the side plate 111 can be changed. Different plate sections along the second direction of the side plate 111 can have different deformability due to the differences in these parameters, and furthermore, the structure is designed so that the change in deformability matches the expansion tendency of the material being cooled.

[0136] Multiple partition plates 112 are installed at intervals along the second direction, and the amount of deformation of the side plate 111 tends to change in the second direction. This is more advantageous than having the amount of deformation of the side plate 111 tend to change in the first direction, as it allows for the use of multiple partition plates 112 to achieve arrangements with different amounts of deformation.

[0137] If the direction in which the cooling passage 113 extends and the direction in which the change in the deformable amount of the side plate 111 is located are both the first direction, the design difficulty of the cooling body 11 will inevitably increase. Therefore, in order to satisfy the cooling requirements of multiple materials to be cooled and to provide a corresponding deformation space according to the expansion demand of the materials to be cooled, the cooling passage 113 is made to extend along the first direction and the deformable amount of the side plate 111 is made to change along the second direction, thereby satisfying different demands from different directions and reducing the design difficulty of the cooling body 11.

[0138] In some embodiments, in a second direction, extending from the intermediate region to the edge region of the side plate 111, the side plate 111 includes a first deformable portion 1111, a second deformable portion 1112, and a third deformable portion 1113. The deformable amount of the first deformable portion 1111 is greater than that of the second deformable portion 1112, and the deformable amount of the second deformable portion 1112 is greater than that of the third deformable portion 1113.

[0139] Unlike the first direction, in the second direction, the side plate 111 is divided into multiple different plate sections from the intermediate region to the edge region, and the deformable amounts of the three different deformable sections are distinguished and compared to create a gradient change. As a result, the change in the deformable amount in the second direction is made more refined and better suited to the expansion demand of the cooled material in the second direction.

[0140] In some embodiments, the partition plate 112 includes a first partition plate 1121 connected at an angle to the first deformation portion 1111, and a second partition plate 1122 connected at an acute angle to the second deformation portion 1112, wherein the acute angle α between the second partition plate 1122 and the second deformation portion 1112 is smaller than the angle β between the first partition plate 1121 and the first deformation portion 1111.

[0141] Generally, the deformation resistance of the side plate 111 tends to weaken from the edge region to the intermediate region. The deformation resistance of the edge region is relatively high, which is advantageous for maintaining the contour shape of the cooling structure 10. The deformation resistance of the intermediate region is relatively weak, which is advantageous for receiving the resistance of the intermediate region where the degree of expansion of the cooled material is greatest and deforming together with it.

[0142] Generally, the deformation resistance of the third deformation section 1113 is the highest, and the structures of the second deformation section 1112 and the first deformation section 1111 are almost similar. Since the second deformation section 1112 is close to the third deformation section 1113, the third deformation section 1113 reinforces the deformation resistance of the second deformation section 1112. Therefore, even though the structures of the second deformation section 1112 and the first deformation section 1111 are almost similar, the deformation resistance of the second deformation section 1112 is much higher than that of the first deformation section 1111 due to the cooperative reinforcing effect of the third deformation section 1113.

[0143] To relatively weaken the deformation resistance of the second deformation section 1112, increase the amount of deformation of the second deformation section 1112, and satisfy the corresponding expansion demand of the localized area of ​​the material being cooled, but lower than that of the third deformation section 1113 and higher than the deformation resistance of the first deformation section 1111, the angle between the second partition plate 1122 and the second deformation section 1112 is set to an acute angle, and the acute angle formed by the second partition plate 1122 and the second deformation section 1112 is made smaller than the angle formed by the first partition plate 1121 and the first deformation section 1111. The amount of deformation of the second deformation section 1112 increases, but is smaller than that of the first deformation section 1111, and the deformation of the first deformation section 1111, the second deformation section 1112 and the third deformation section 1113 decreases in a gradient, satisfying the expansion change demand of the surface of the material being cooled.

[0144] In some embodiments, the first partition plate 1121 is connected to the first deformed portion 1111 at an acute angle.

[0145] The first partition plate 1121 and the first deformable portion 1111 form an acute or right angle, and the smaller the angle, the more advantageous it is for increasing the amount of deformation. Forming an acute angle between the first partition plate 1121 and the first deformable portion 1111 is more advantageous than a right angle for increasing the amount of deformation of the first deformable portion 1111, satisfying the resistance in the intermediate region where the degree of expansion of the cooled material is greatest, and deforming together with it.

[0146] In some embodiments, the number of second partition plates 1122 is one or more, and the number of first partition plates 1121 is multiple. The pitch between two adjacent second partition plates 1122 is greater than the pitch between two adjacent first partition plates 1121, and / or the pitch between an adjacent second partition plate 1122 and a first partition plate 1121 is greater than the pitch between two adjacent first partition plates 1121.

[0147] In some embodiments, the number of first partition plates 1121 is multiple, and the number of second partition plates 1122 is one, and the pitch between adjacent second partition plates 1122 and first partition plates 1121 is greater than the pitch between two adjacent first partition plates 1121.

[0148] In some other embodiments, the number of first partition plates 1121 is multiple, and the number of second partition plates 1122 is multiple. In some embodiments, the pitch between two adjacent second partition plates 1122 is greater than the pitch between two adjacent first partition plates 1121, and the pitch between an adjacent second partition plate 1122 and a first partition plate 1121 is greater than the pitch between two adjacent first partition plates 1121.

[0149] In some other embodiments, the pitch between two adjacent second partition plates 1122 is greater than the pitch between two adjacent first partition plates 1121, and the pitch between an adjacent second partition plate 1122 and a first partition plate 1121 is equal to the pitch between two adjacent first partition plates 1121.

[0150] In some other embodiments, the pitch between two adjacent second partition plates 1122 is equal to the pitch between two adjacent first partition plates 1121, and the pitch between an adjacent second partition plate 1122 and a first partition plate 1121 is greater than the pitch between two adjacent first partition plates 1121.

[0151] The pitch between the partition plates 112 affects the amount of deformation possible in the deformable portion. A larger pitch is advantageous for increasing the amount of deformation possible. As described above, by changing the partition plate pitch, a greater amount of deformation is possible, and the cooled material can be satisfied with a higher expansion requirement.

[0152] Generally, the deformation resistance of the third deformation part 1113 is the highest, the deformation resistance of the second deformation part 1112 is the next highest, and the deformation resistance of the first deformation part 1111 is the weakest. The above plan allows for a corresponding reduction in the deformation resistance of the third deformation part 1113 and the second deformation part 1112, that is, an increase in their deformability. In other words, to ensure that the deformability of the third deformation part 1113 is the strongest, the deformability of the third deformation part 1113 and the second deformation part 1112 are moderately improved.

[0153] In some cases, improving the angle between the partition plate 112 and the side plate 111 is insufficient to provide sufficient deformable space for materials with a higher demand for expansion changes. Therefore, based on the improvement in the angle between the partition plate 112 and the deformable part, the improvement in the partition plate pitch is increased to achieve sufficient adjustment to the overall deformable amount of the side plate 111.

[0154] The partition plate 112 includes one or more second partition plates 1122 connected to the second deformation portion 1112, and a plurality of first partition plates 1121 connected to the first deformation portion 1111. The pitch between two adjacent second partition plates 1122 is greater than the pitch between two adjacent first partition plates 1121, and / or the pitch between an adjacent second partition plate 1122 and a first partition plate 1121 is greater than the pitch between two adjacent first partition plates 1121.

[0155] Generally, the pitch between any two adjacent second partition plates 1122 is equal, and the pitch between any two adjacent first partition plates 1121 is equal.

[0156] In some embodiments, the number of first partition plates 1121 is multiple, and the number of second partition plates 1122 is one, and the pitch between adjacent second partition plates 1122 and first partition plates 1121 is greater than the pitch between two adjacent first partition plates 1121.

[0157] In some other embodiments, the number of first partition plates 1121 is multiple, and the number of second partition plates 1122 is multiple. In some embodiments, the pitch between two adjacent second partition plates 1122 is greater than the pitch between two adjacent first partition plates 1121, and the pitch between an adjacent second partition plate 1122 and a first partition plate 1121 is greater than the pitch between two adjacent first partition plates 1121.

[0158] In some other embodiments, the pitch between two adjacent second partition plates 1122 is greater than the pitch between two adjacent first partition plates 1121, and the pitch between an adjacent second partition plate 1122 and a first partition plate 1121 is equal to the pitch between two adjacent first partition plates 1121.

[0159] In some other embodiments, the pitch between two adjacent second partition plates 1122 is equal to the pitch between two adjacent first partition plates 1121, and the pitch between an adjacent second partition plate 1122 and a first partition plate 1121 is greater than the pitch between two adjacent first partition plates 1121.

[0160] To relatively weaken the deformation resistance of the second deformation section 1112, increase the amount of deformation of the second deformation section 1112, and satisfy the corresponding expansion demand of the localized area of ​​the material being cooled, but lower than that of the third deformation section 1113 and higher than the deformation resistance of the first deformation section 1111, the pitch between two adjacent second partition plates 1122 and / or between adjacent second partition plates 1122 and the first partition plate 1121 is set to a large pitch, and the pitch between two adjacent first partition plates 1121 is set to a small pitch, with a larger pitch being advantageous for increasing the amount of deformation. The amount of deformation of the second deformation section 1112 increases, but is smaller than that of the first deformation section 1111, and the deformation of the first deformation section 1111, the second deformation section 1112 and the third deformation section 1113 decreases in a gradient, satisfying the expansion change demand of the surface of the material being cooled.

[0161] In some embodiments, the second partition plate 1122 and the second deformation portion 1112 are connected at an angle, the first partition plate 1121 and the first deformation portion 1111 are connected at an angle, and the angle α between the second partition plate 1122 and the second deformation portion 1112 is less than or equal to the angle β between the first partition plate 1121 and the first deformation portion 1111.

[0162] For materials to be cooled with a higher demand for expansion change, improving the pitch between the partition plates 112 alone is insufficient to provide sufficient deformable space. Therefore, based on the improvement in the pitch between the partition plates 112, the improvement in the angle between the partition plates 112 and the deformable part is increased. A smaller angle is advantageous for increasing the amount of deformability, and by providing a larger amount of deformability, the materials to be cooled with a higher expansion demand are satisfied. Here, the angle between the first partition plate 1121 and the first deformable part 1111, and the angle between the second partition plate 1122 and the second deformable part 1112, may both be acute or right angles.

[0163] In some embodiments, the thickness of the second partition plate 1122 is less than the thickness of the first partition plate 1121, and / or the number of second partition plates 1122 is less than the number of first partition plates 1121.

[0164] For materials to be cooled with a higher demand for expansion change, improving the pitch between partition plates 112 and / or the angle between partition plates 112 and the deformable portion is insufficient to provide sufficient deformable space. Therefore, increasing improvements to the plate thickness and / or number of partition plates 112 is beneficial, as a smaller plate thickness is advantageous for increasing the amount of deformability, and a smaller number is also advantageous for increasing the amount of deformability, thereby satisfying materials to be cooled with a higher expansion demand by providing a greater amount of deformability.

[0165] Of course, implementing the previous embodiment requires ensuring that the cooling body 11 itself possesses the necessary strength or rigidity. The partition plate 112, as an internal support member of the cooling body 11, has a plate thickness that affects the overall framework of the cooling body 11, that is, it affects whether the cooling body 11 is nearly stable in holding the material to be cooled, but does not undergo deformation other than that predetermined.

[0166] In some embodiments, the actual design tends to make the thickness of the first deformation section 1111 the same as the thickness of the second deformation section 1112, the thickness of the second partition plate 1122 is the same as the thickness of the first partition plate 1121, and the thickness of the third deformation section 1113 is greater than the thicknesses of the first deformation section 1111 and the second deformation section 1112.

[0167] Having a plate thickness greater than that of the first deformation portion 1111 and the second deformation portion 1112 is advantageous for maintaining the contour shape of the cooling structure 10. Having a plate thickness equal to that of the first deformation portion 1111 and the second deformation portion 1112, and having a plate thickness equal to that of the second partition plate 1122 and the first partition plate 1121, allows for a matching plate thickness while appropriately improving the angle between the partition plate 112 and the deformation portion, as well as the distance between the partition plates 112, without being affected by the plate thickness mismatch.

[0168] In some embodiments, the thickness of the third deformation portion 1113 gradually increases along the direction away from the second deformation portion 1112, and the two ends of the two third deformation portions 1113 of the two side plates 111, away from the second deformation portion 1112, are sealed and connected.

[0169] The two ends of the two third deformation sections 1113 that are separated from the second deformation section 1112 are sealed and connected, thereby improving the deformation resistance of the third deformation section 1113, and the acute angle between the second partition plate 1122 and the second deformation section 1112 compensates for the weakening effect on the deformation resistance of the third deformation section 1113.

[0170] In some embodiments, the cooling structure 10 includes two side plates 111 that are installed opposite each other, and a plurality of partition plates 112 provided between the two side plates 111. The partition plates 112 extend along a first direction, and the plurality of partition plates 112 are installed spaced apart along a second direction, and two adjacent partition plates 112 and two side plates 111 form a surrounding cooling passage 113 that extends along the first direction.

[0171] The side plate 111 can come into contact with a plurality of materials to be cooled arranged along a first direction, and in a second direction, from the middle region toward the edge region of the side plate 111, the side plate 111 includes a first deformable portion 1111, a second deformable portion 1112, and a third deformable portion 1113. The deformable amount of the first deformable portion 1111 is greater than the deformable amount of the second deformable portion 1112, and the deformable amount of the second deformable portion 1112 is greater than the deformable amount of the third deformable portion 1113.

[0172] The partition plate 112 includes a first partition plate 1121 connected at an acute angle to the first deformed portion 1111, and a second partition plate 1122 connected at an acute angle to the second deformed portion 1112, wherein the acute angle between the second partition plate 1122 and the second deformed portion 1112 is smaller than the acute angle between the first partition plate 1121 and the first deformed portion 1111. There are multiple first partition plates 1121 and one second partition plate 1122, and the pitch between adjacent second partition plates 1122 and first partition plates 1121 is larger than the pitch between two adjacent first partition plates 1121.

[0173] In the cooling structure 10 according to the embodiment of this application, the surfaces on which the side plate 111 and the material to be cooled come into contact with each other are generally flat, and for example, the material to be cooled may be a rectangular battery 100. Even if the surfaces on which the side plate 111 and the material to be cooled come into contact with each other are not flat, for example, if one is slightly concave and the other is convex, a cooling body 11 that meets the requirements can be designed using a similar principle to meet the cooling needs of the material to be cooled.

[0174] Of course, the material to be cooled may have a plane that can contact one side plate 111, and the other side may be non-planar. Alternatively, the side surfaces of both the side plate 111 and the material to be cooled that contact each other may be formed by multiple planes that form an angle. For example, if the side surface of the material to be cooled includes two planes that form an angle, the cooling body 11 can be sandwiched inside, and the side surface of the cooling body 11 can be designed to change the amount of deformability according to the principle of the embodiment of this application.

[0175] Furthermore, it should be explained that the deformable amount of the first deformable part 1111 is greater than the deformable amount of the second deformable part 1112, the deformable amount of the second deformable part 1112 is greater than or equal to the deformable amount of the third deformable part 1113, the side plate 111 only needs to be able to construct the overall tendency of this deformation, the numerical values ​​of the multiple angles α between the multiple first partition plates 1121 and the first deformable part 1111 may be the same or different, and the numerical values ​​of the multiple angles β between the multiple second partition plates 1122 and the second deformable part 1112 may be the same or different.

[0176] Referring to Figures 3 to 6, another object of the embodiments of the present application is to provide a battery 100 which comprises a battery cell 101 and the cooling structure 10, wherein at least one side of the side plate 111 is in contact with the side surface of the battery cell 101.

[0177] In the battery 100 according to the embodiment of this application, a cooling passage 113 for the flow of a cooling medium is provided on at least one side of the side plate 111, and at least one side of the side plate 111 is in contact with the battery cell 101, allowing the cooling medium to remove heat from the battery cell 101 through contact. Different regions on the battery cell 101 that are in contact with the side plate 111 have different degrees of expansion, and these different degrees of expansion generate different magnitudes of resistance forces in different regions of the side plate 111. The different amounts of deformation in different regions on the side plate 111 provide the expansion space required for different degrees of expansion, allowing different regions of the battery cell 101 to expand adaptively in response to changes in internal stress, thereby maintaining or extending the service life of the battery cell 101.

[0178] In some embodiments, the battery cell 101 is rectangular in shape, and at least one side of the side plate is in contact with the surface of the battery cell 101 that has the largest area.

[0179] Here, the quadrilateral may be a square or a rectangular prism, and the surface with the largest area may be one or more, in which case the cooling requirements of the material to be cooled can be met using the side plate 111 according to this embodiment.

[0180] The expansion of the largest surface area of ​​the battery cell 101 shows a clear trend of change, with the degree of expansion being most pronounced in the intermediate region, and the degree of expansion tending to weaken from the intermediate region towards the edge region. One side of the side plate 111 is in contact with the largest surface area of ​​the battery cell 101 and is better suited to the expansion demand of the largest surface area.

[0181] In some embodiments, the cooling passage 113 extends along a first direction, and the battery 100 includes a plurality of battery cells 101 that are sequentially installed along the first direction, with the largest surface areas of each cell contacting the same side of the side plate. In a second direction perpendicular to the first direction, the amount of deformation of the side plate 111 decreases in a gradient from the middle region to the edge region of the side plate 111.

[0182] The direction in which the cooling passage 113 extends coincides with the installation direction of the multiple battery cells 101, allowing the cooling structure 10 to efficiently cool the multiple battery cells 101. In the second direction, the amount of deformation of the side plate 111 decreases in a gradient from the intermediate region to the edge region, so as to satisfy the expansion demand of the surface with the largest area of ​​each battery cell 101 installed along the first direction.

[0183] Referring to Figure 7, yet another object of the embodiments of this application is to provide a power consumption device 1000 including the battery 100.

[0184] The power consumption device 1000 according to the embodiment of this application is fitted with the battery 100 according to the embodiment of this application, and the battery 100 according to the embodiment of this application is fitted with the cooling structure 10 according to this application. The cooling structure 10 allows different regions of the battery 100 to expand adaptively in response to changes in internal stress, making it difficult to suppress the expansion of the battery 100, which is advantageous for improving the safety of use of the battery 100 and the safety of the power consumption device 1000.

[0185] The foregoing are merely preferred embodiments of this application and are not intended to limit it. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should all be included within the scope of protection of this application. [Explanation of symbols]

[0186] 10 Cooling structure 11 Cooling Unit 12 Liquid inlet structure 13 Outlet structure 100 batteries 101 battery cells 111 Side panel 112 Partition Plate 113 Cooling passage 120 Inlet 130 Outlet 1000 power consuming devices 1001 Controller 1002 Motor 1111 First deformation part 1112 Second deformation section 1113 Third deformation part 1121 First partition plate 1122 Second partition

Claims

1. A cooling structure, The cooling structure includes a side plate and a cooling passage disposed on at least one side of the side plate. The cooling structure is characterized in that the side plate is configured to deform toward the side where the cooling passage is located, thereby generating a deformable amount, and the deformable amounts at different positions of the side plate are different.

2. The cooling structure according to claim 1, characterized in that the amount of deformation of the side plate decreases from the intermediate region of the side plate toward the edge region of the side plate.

3. The side plate includes a first deformation portion, a second deformation portion, and a third deformation portion, which are sequentially installed from the intermediate region to the edge region of the side plate. The cooling structure according to claim 1 or 2, characterized in that the deformable amount of the first deformable portion is greater than or equal to the deformable amount of the second deformable portion, and the deformable amount of the second deformable portion is greater than the deformable amount of the third deformable portion.

4. The side plate includes two second deformed parts and two third deformed parts, The cooling structure according to claim 3, characterized in that the two second deformation portions are provided on opposite sides of the first deformation portion, and the two third deformation portions are provided on both sides of the two second deformation portions that are separated from the first deformation portion.

5. The cooling structure according to claim 1, wherein the cooling structure includes two side plates installed opposite each other, and the cooling passage is provided between the two side plates.

6. The cooling structure includes a plurality of partition plates provided between the two side plates, The partition plate extends along a first direction, and the plurality of partition plates are spaced apart along a second direction, and two adjacent partition plates and two side plates surround each other to form the cooling passage extending along the first direction. The cooling structure according to claim 5, characterized in that, in the second direction, the amount of deformation of the side plate decreases from the intermediate region of the side plate toward the edge region, and the first direction is perpendicular to the second direction.

7. In the second direction, the side plate includes a first deformable portion, a second deformable portion, and a third deformable portion, extending from the intermediate region of the side plate toward the edge region. The cooling structure according to claim 6, characterized in that the deformable amount of the first deformable portion is greater than the deformable amount of the second deformable portion, and the deformable amount of the second deformable portion is greater than the deformable amount of the third deformable portion.

8. The cooling structure according to claim 7, wherein the partition plate includes a first partition plate connected at an angle to the first deformed portion and a second partition plate connected at an acute angle to the second deformed portion, and the acute angle between the second partition plate and the second deformed portion is smaller than the angle between the first partition plate and the first deformed portion.

9. The cooling structure according to claim 8, characterized in that the first partition plate and the first deformed portion are connected at an acute angle.

10. The number of the second partition plates is one or more, and the number of the first partition plates is multiple. The pitch between two adjacent second partition plates is greater than the pitch between two adjacent first partition plates. The cooling structure according to claim 8 or 9, characterized in that and / or, the pitch between the adjacent second partition plate and the first partition plate is greater than the pitch between two adjacent first partition plates.

11. The partition plate includes a plurality of first partition plates connected to the first deformation portion and one or more second partition plates connected to the second deformation portion. The pitch between two adjacent second partition plates is greater than the pitch between two adjacent first partition plates. The cooling structure according to claim 7, characterized in that and / or, the pitch between the adjacent second partition plate and the first partition plate is greater than the pitch between two adjacent first partition plates.

12. The cooling structure according to claim 11, characterized in that the first partition plate and the first deformable portion are connected at an angle, the second partition plate and the second deformable portion are connected at an angle, and the angle between the second partition plate and the second deformable portion is less than or equal to the angle between the first partition plate and the first deformable portion.

13. The thickness of the second partition plate is smaller than the thickness of the first partition plate. The cooling structure according to claim 8, characterized in that and / or the number of the second partition plates is less than the number of the first partition plates.

14. The cooling structure according to claim 8, characterized in that the thickness of the first deformed portion is the same as the thickness of the second deformed portion, the thickness of the second partition plate is the same as the thickness of the first partition plate, and the thickness of the third deformed portion is greater than the thicknesses of the first and second deformed portions.

15. The cooling structure according to claim 14, characterized in that the plate thickness of the third deformed portion gradually increases along the direction away from the second deformed portion, and the two ends of the two third deformed portions of the two side plates that are away from the second deformed portion are sealed and connected.

16. It is a battery, A battery comprising a battery cell and a cooling structure according to claim 1, wherein at least one side of the side plate is in contact with the side surface of the battery cell.

17. The battery according to claim 16, characterized in that the battery cell is rectangular in shape, and at least one side of the side plate is in contact with the surface of the battery cell that has the largest area.

18. The cooling passage extends along the first direction, and the battery includes a plurality of battery cells that are sequentially installed along the first direction, and the largest surface area of ​​each of the plurality of battery cells is in contact with the same side of the side plate. The battery according to claim 16, characterized in that, in a second direction perpendicular to the first direction, the amount of deformation of the side plate decreases from the intermediate region of the side plate toward the edge region.

19. A power consumption device, A power consumption device characterized by including a battery according to any one of claims 16 to 18.

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