Cooling structure, battery, and electric device

Abstract

The present application provides a cooling structure, a battery, and an electric device. The cooling structure comprises a side plate and a cooling channel arranged on at least one side of the side plate. The side plate is configured to be able to deform towards the side where the cooling channel is located, and generate an amount of deformation, and the side plate has different amounts of deformation in at least one direction. The side plate can deform towards the side where the cooling channel is located, and generates the amount of deformation, and the amounts of deformation at different positions of the side plate are different. The side surface, in contact with a side plate, of a cooled component has different degrees of expansion, the different degrees of expansion exert different forces on different areas of the side plate, and different amounts of deformation on the side plate provide expansion spaces required for different degrees of expansion, allowing the cooled component to expand differently according to changes of internal stress, thereby maintaining the normal service life of the cooled component or even prolonging the service life of the cooled component.

Description

Cooling structure, battery and power-consuming device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on October 30, 2023, with application number 202311423067.1 and invention name “A cooling structure, battery and electrical device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of new energy technology, and in particular to a cooling structure, a battery, and an electrical device. Background Art

[0003] Power batteries or energy storage batteries generate heat during the charging and discharging process, and a cooling structure is generally used to dissipate the heat by contact heat dissipation.

[0004] Different areas of the battery's side in contact with the cooling structure expand to varying degrees, and these areas exert varying resistance to the cooling surface. If the cooling structure's surface provides the same amount of deformability, it won't be able to accommodate the varying expansion requirements of different battery areas, shortening the battery's lifespan.

[0005] Application Contents

[0006] The purpose of the embodiments of the present application is to provide a cooling structure, a battery, and an electrical device, including but not limited to solving the technical problem that the existing cooling structure cannot meet the expansion requirements of different areas of the battery, resulting in a shortened battery life.

[0007] The technical solution adopted in the embodiment of this application is:

[0008] In a first aspect, a cooling structure is provided, comprising a side plate and a cooling channel arranged on at least one side of the side plate;

[0009] The side plate is configured to be deformable toward the side where the cooling channel is located and generate a deformable amount, and the deformable amounts at different positions of the side plate are different.

[0010] In the cooling structure provided by the embodiment of the present application, at least one side of the side plate is provided with a cooling channel for a cooling medium to flow through, and the cooling medium removes heat from the cooled component through contact with the side plate.

[0011] The side panels can deform toward the cooling channels, generating varying amounts of deformation. This allows the sides of the cooled component that come into contact with the side panels to expand to varying degrees, generating varying resistance forces in different areas of the side panels. The varying deformations of the side panels provide the necessary space for expansion, allowing the cooled component to expand differently based on internal stress, thereby maintaining or extending its service life.

[0012] In some embodiments, the deformability of the side panel decreases from the middle region of the side panel toward the edge region of the side panel.

[0013] Generally, the center of the surface of the cooled part expands the most, and the expansion decreases from the center toward the edges. To adapt to the surface expansion trend of the cooled part, the side panels are designed so that their deformability decreases from the center to the edges. This trend in deformability aligns with the expansion trend, allowing the side panels to further meet the expansion requirements of the cooled part.

[0014] In some embodiments, the side panel includes a first deformable portion, a second deformable portion, and a third deformable portion sequentially arranged from a middle region of the side panel to an edge region of the side panel;

[0015] 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.

[0016] The side panel is divided into multiple different panel parts from the middle area to the edge area, and the deformable amounts of different panel parts are distinguished and compared to make them show a decreasing trend. The change of the deformable amount is more refined and more adapted to the expansion requirements of the cooled parts.

[0017] In some embodiments, the side plate includes two second deformation portions and two third deformation portions;

[0018] The two second deformation parts are arranged on two opposite sides of the first deformation part, and the two third deformation parts are arranged on two sides of the two second deformation parts away from the first deformation part.

[0019] Considering that any two opposite sides of the middle area have edge areas, the second deformation part and the third deformation part are set on the opposite sides of the first deformation part to meet the expansion requirements of the cooled part in the entire contact area between the side plate and the cooled part.

[0020] In some embodiments, the cooling structure includes two side plates, the two side plates are arranged opposite to each other, and the cooling channel is arranged between the two side plates.

[0021] Both side plates can be deformed toward each other, and cooled parts can be set on the sides of the two side plates facing away from each other. The cooled parts on both sides are cooled through the cooling channels between the two side plates, thereby improving the integration while meeting the expansion requirements of the cooled parts.

[0022] In some embodiments, the cooling structure includes a plurality of partitions disposed between two of the side plates;

[0023] The partition extends along the first direction, the plurality of partitions are spaced apart along the second direction, and two adjacent partitions and two side plates together form the cooling channel extending along the first direction;

[0024] In the second direction, the deformability of the side panel decreases from the middle region to the edge region of the side panel.

[0025] Multiple partitions are arranged at intervals along the second direction, and the deformability of the side panel has a changing trend in the second direction. Compared with the deformability of the side panel having a changing trend in the first direction, it is more conducive to using multiple partitions to achieve different configurations of the deformability.

[0026] In some embodiments, in the second direction, from the middle area of ​​the side panel to the edge area, the side panel includes a first deformable portion, a second deformable portion, and a third deformable portion;

[0027] 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.

[0028] In the second direction, the side panel is divided into multiple different panel parts from the middle area to the edge area, and the deformable quantities of different panel parts are distinguished and compared to make them show a decreasing trend. The change of the deformable quantity in the second direction is more refined and more adapted to the expansion requirements of the cooled component in the second direction.

[0029] In some embodiments, the partition includes a first partition connected to the first deformation portion at an angle, and a second partition connected to the second deformation portion at an acute angle, and the acute angle between the second partition and the second deformation portion is smaller than the angle between the first partition and the first deformation portion.

[0030] From the edge area of ​​the side panel to the middle area, the side panel's anti-deformation ability tends to weaken. The edge area has a higher anti-deformation ability, which is conducive to maintaining the contour shape of the cooling structure. The middle area has a relatively weaker anti-deformation ability, which is conducive to absorbing the resistance of the middle area where the cooled part expands the most and deforming accordingly.

[0031] The third deformable portion has the highest deformation resistance. The second and first deformable portions have roughly similar structures. Because the second deformable portion is close to the third deformable portion, the third deformable portion strengthens the second deformable portion's deformation resistance. Therefore, even though the second and first deformable portions have roughly similar structures, the third deformable portion's reinforcement aids make the second deformable portion's deformation resistance far greater than that of the first.

[0032] To relatively weaken the deformation resistance of the second deformable portion and increase its deformability to meet the expansion requirements of the corresponding local area of ​​the cooled component, while maintaining a lower deformation resistance than the third deformable portion and higher than the first deformable portion, the angle between the second partition and the second deformable portion is set to an acute angle, smaller than the angle between the first partition and the first deformable portion. A smaller angle is more conducive to increasing the deformability. The deformability of the second deformable portion increases, but remains smaller than that of the first deformable portion. The first, second, and third deformable portions decrease, meeting the expansion requirements of the cooled component surface.

[0033] In some embodiments, the first partition is connected to the first deformation portion at an acute angle.

[0034] The first baffle and the first deformable portion form an acute angle or a right angle. A smaller angle is more conducive to increasing the deformability of the first deformable portion. Compared to a right angle, an acute angle between the first baffle and the first deformable portion is more conducive to increasing the deformability of the first deformable portion, satisfying the resistance and subsequent deformation of the central area where the cooled component expands the most.

[0035] In some embodiments, the number of the second partitions is one or more, and the number of the first partitions is multiple;

[0036] The distance between two adjacent second partitions is greater than the distance between two adjacent first partitions;

[0037] And / or, the distance between adjacent second partitions and first partitions is greater than the distance between two adjacent first partitions.

[0038] For cooled parts with higher expansion change requirements, simply improving the angle between the partition and the deformation part is not enough to provide sufficient deformable space. Therefore, based on the improvement of the angle between the partition and the deformation part, the spacing between the partitions is improved. The larger the spacing, the more conducive it is to increasing the deformability. By providing more deformability, the cooled parts with higher expansion requirements can be met.

[0039] In some embodiments, the partition includes one or more second partitions connected to the second deformation portion, and a plurality of first partitions connected to the first deformation portion;

[0040] The distance between two adjacent second partitions is greater than the distance between two adjacent first partitions;

[0041] And / or, the distance between adjacent second partitions and first partitions is greater than the distance between two adjacent first partitions.

[0042] To relatively weaken the deformation resistance of the second deformable portion and increase its deformability to meet the expansion requirements of the corresponding local area of ​​the cooled component, while maintaining a lower deformation resistance than the third deformable portion and higher than the first deformable portion, the spacing between two adjacent second baffles and / or the spacing between adjacent second and first baffles is set to a larger spacing, while the spacing between two adjacent first baffles is set to a smaller spacing. A larger spacing is more conducive to increasing the deformability. The deformability of the second deformable portion increases, but remains smaller than that of the first deformable portion. The first, second, and third deformable portions decrease to meet the expansion requirements of the cooled component surface.

[0043] In some embodiments, the second partition is connected to the second deformable portion at an angle, the first partition is connected to the first deformable portion at an angle, and the angle between the second partition and the second deformable portion is less than or equal to the angle between the first partition and the first deformable portion.

[0044] For cooled components with higher expansion requirements, simply improving the spacing between the partitions is insufficient to provide sufficient deformable space. Therefore, based on the improved spacing between the partitions, the angle between the partitions and the deformable portion is also modified. A smaller angle increases the deformability, thus providing greater deformability to meet the needs of cooled components with higher expansion requirements. The angle between the first partition and the first deformable portion, and the angle between the second partition and the second deformable portion, can both be acute or right angles.

[0045] In some embodiments, the thickness of the second separator is smaller than the thickness of the first separator;

[0046] And / or, the number of the second partitions is smaller than the number of the first partitions.

[0047] For cooled parts with higher expansion change requirements, improving the spacing between the partitions and / or the angle between the partitions and the deformation part is not enough to provide sufficient deformable space, and increasing the thickness and / or number of the partitions is improved. The smaller the thickness, the more conducive to increasing the deformability, and the smaller the number, the more conducive to increasing the deformability. By providing more deformability, the cooled parts with higher expansion requirements can be met.

[0048] In some embodiments, the thickness of the first deformation portion is the same as the thickness of the second deformation portion, the thickness of the second partition is the same as the thickness of the first partition, and the thickness of the third deformation portion is greater than the thickness of the first deformation portion and the second deformation portion.

[0049] The plate thickness of the third deformation part is greater than that of the first deformation part and the second deformation part, which is beneficial to maintaining the contour shape of the cooling structure. The plate thickness of the first deformation part is the same as that of the second deformation part, and the plate thickness of the second partition is the same as that of the first partition, which is beneficial to adapting the angle between the partition and the deformation part and the distance between the partitions on the basis of consistent plate thickness without being affected by inconsistent plate thickness.

[0050] In some embodiments, the thickness of the third deformation portion gradually increases in a direction away from the second deformation portion, and two ends of the two third deformation portions of the two side plates away from the second deformation portion are closed and connected.

[0051] The two third deformation parts are closed and connected at the two ends away from the second deformation part, thereby improving the deformation resistance of the third deformation part and compensating for the weakening effect of the deformation resistance of the third deformation part due to the acute angle between the second partition and the second deformation part.

[0052] In a second aspect, a battery is provided, comprising a battery cell and the cooling structure as described above, wherein at least one side of the side plate is in contact with a side surface of the battery cell.

[0053] In the battery provided in the embodiments of the present application, at least one side of the side plate is provided with a cooling channel for the flow of a cooling medium. At least one side of the side plate contacts the battery cell, allowing the cooling medium to remove heat from the battery cell through contact. Different areas of the battery cell in contact with the side plate expand to varying degrees, generating varying resistance forces on different areas of the side plate. The varying deformation of different areas of the side plate provides the required expansion space for varying expansion levels, allowing different areas of the battery cell to expand adaptively in response to changes in internal stress, thereby maintaining or extending the battery cell's service life.

[0054] In some embodiments, the battery cell is square in shape, and at least one side of the side plate is in contact with the largest surface of the battery cell.

[0055] The expansion of the largest surface area of ​​the battery cell has a clear changing trend. The expansion degree is most obvious in the middle area. From the middle area to the edge area, the expansion degree tends to decrease. At least one side of the side plate is in contact with the largest surface area of ​​the battery cell, which is more suitable for the expansion requirements of the largest surface area.

[0056] In some embodiments, the cooling channel extends along the first direction, the battery includes a plurality of battery cells sequentially arranged along the first direction, and the surfaces with the largest areas of the plurality of battery cells all contact the same side of the side plate;

[0057] In a second direction perpendicular to the first direction, from the middle area to the edge area of ​​the side plate, the deformability of the side plate decreases.

[0058] The cooling channels extend in the same direction as the battery cells are arranged, allowing the cooling structure to efficiently cool multiple battery cells. In the second direction, the side panels are arranged so that their deformability decreases from the middle area to the edge areas, meeting the expansion requirements of the largest surface area of ​​each battery cell arranged along the first direction.

[0059] In a third aspect, an electrical device is provided, wherein the electrical device includes the battery as described above.

[0060] The electrical device provided in the embodiment of the present application is applied with the battery provided in the present application, and the battery provided in the embodiment of the present application is applied with the cooling structure provided in the embodiment of the present application. The cooling structure allows different areas of the battery to expand adaptively according to changes in internal stress, and is not likely to cause adverse inhibition on the expansion of the battery, which is beneficial to improving the safety of battery use and improving the safety of the electrical device.

[0061] The cooling structure provided by the embodiment of the present application has the following beneficial effects:

[0062] The cooling structure provided by the embodiment of the present application is provided with a cooling channel on at least one side of the side panel for the cooling medium to flow through. The cooled part and the side panel are in contact with each other so that the cooling medium takes away the heat of the cooled part. The side panel can be deformed toward the side where the cooling channel is located, and a deformable amount is generated, and the deformable amount is different at different positions of the side panel. The side surfaces of the cooled part in contact with the side panel have different expansion degrees, and the different expansion degrees generate different resistance forces on different areas of the side panel. The different deformation amounts on the side panel provide the expansion space required for different expansion degrees, allowing the cooled part to expand differently according to the internal stress, so that the service life of the cooled part remains normal or its service life is extended.

[0063] The beneficial effects of the battery provided in the embodiments of the present application are:

[0064] In the battery provided in the embodiments of the present application, at least one side of the side plate is provided with a cooling channel for the flow of a cooling medium. At least one side of the side plate contacts the battery cell, allowing the cooling medium to remove heat from the battery cell through contact. Different areas of the battery cell in contact with the side plate expand to varying degrees, generating varying resistance forces on different areas of the side plate. The varying deformation of different areas of the side plate provides the required expansion space for varying expansion levels, allowing different areas of the battery cell to expand adaptively in response to changes in internal stress, thereby maintaining or extending the battery cell's service life.

[0065] The beneficial effects of the electric device provided by the embodiment of the present application are:

[0066] The electrical device provided in the embodiment of the present application is applied with the battery provided in the present application, and the battery provided in the embodiment of the present application is applied with the cooling structure provided in the embodiment of the present application. The cooling structure allows different areas of the battery to expand adaptively according to changes in internal stress, and is not likely to cause adverse inhibition on the expansion of the battery, which is beneficial to improving the safety of battery use and improving the safety of the electrical device. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0068] FIG1 is a schematic diagram of a battery provided in an embodiment of the present application from a first viewing angle;

[0069] FIG2 is a schematic diagram of a battery provided in an embodiment of the present application from a second viewing angle;

[0070] FIG3 is a cross-sectional view taken along the AA direction in FIG2 ;

[0071] FIG4 is a schematic diagram of a cooling structure provided in an embodiment of the present application;

[0072] FIG5 is a cross-sectional view taken along the CC direction in FIG4 ;

[0073] FIG6 is a cross-sectional view taken along the line BB in FIG4 ;

[0074] FIG7 is a schematic diagram of an electrical device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0075] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit this application.

[0076] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The terms "upper", "lower", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of description and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "first" and "second" are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0077] Power batteries or energy storage batteries generate heat during the charging and discharging process. This heat is typically dissipated through contact cooling using a cooling structure. For example, a cooling plate is placed in contact with the battery surface, with channels inside the plate for the cooling medium to flow through.

[0078] The battery surface expands due to the heat inside the battery, with different areas expanding to varying degrees. Generally, the expansion is most pronounced in the middle of the battery surface, and decreases from the middle to the edges.

[0079] The cooling structure's deformation provides the space required for battery expansion and extension. Generally, the cooling structure's side panels contact the battery surface, and the interior of the cooling structure is separated by a plate structure to create multiple media channels. The side panels are uniformly thick, and the thickness of the multiple plate structures is consistent. The angles at which the plate structures connect to the side panels are consistent, and the degree of deformation of the cooling structure is uniform.

[0080] When the degree of deformation provided by the cooling structure is uniform, the deformation of the cooling structure surface cannot meet the different expansion requirements of different areas of the battery surface, and does not allow different areas of the battery to expand adaptively according to changes in internal stress, resulting in a shortened battery life.

[0081] Based on the above considerations, a cooling structure is provided to enable the cooling structure to meet the different expansion requirements of different areas of the battery, allowing different areas of the battery to adaptively expand according to changes in internal stress, thereby maintaining the normal service life of the battery or extending its service life. Referring to Figures 1 to 3, the cooling structure 10 includes a side plate 111 and a cooling channel 113 configured on at least one side of the side plate 111. The side plate 111 is configured to deform toward the side where the cooling channel 113 is located, generating a deformable amount, with the deformable amount varying at different locations on the side plate 111.

[0082] The provided cooling structure 10 has a cooling channel 113 on at least one side of the side plate 111, through which a cooling medium can flow. The side plate 111 and the battery 100 are in contact so that the cooling medium takes away the heat of the battery 100. The side plate 111 can deform toward the side where the cooling channel 113 is located, and produce a deformable amount. The deformable amounts of different areas of the side plate 111 are different. Different areas of the battery 100 that are in contact with the side plate 111 have different degrees of expansion. Different degrees of expansion produce different amounts of resistance forces on different areas of the side plate 111. The different deformation amounts of different areas on the side plate 111 provide the expansion space required for different degrees of expansion, allowing different areas of the battery 100 to expand adaptively according to changes in internal stress, so that the service life of the battery 100 remains normal or its service life is extended.

[0083] 1 to 3 , the battery 100 provided in the embodiments of the present application can be used, but is not limited to, in an electrical device 1000 such as a vehicle, ship, or aircraft. The battery 100 equipped with the cooling structure 10 provided in the embodiments of the present application can be used to form a power supply system for the electrical device 1000, thereby maintaining or extending the service life of the battery 100 and the electrical device 1000, and also improving the safety and reliability of the battery 100 and the electrical device 1000 during use.

[0084] In some embodiments, battery 100 refers to a physical module comprising one or more battery cells 101, which is used to provide voltage and capacitance. For example, it may include a battery cell 101, a battery 100 module, or a battery 100 pack. Generally, battery 100 includes a single battery cell 100 and a casing for accommodating the single battery cell 100. The casing is used to accommodate and encapsulate one or more battery cells 101 or a battery 100 module. The casing is used to protect the battery cells 101 and prevent liquids or other foreign matter from affecting the charging or discharging of the battery cells 101.

[0085] The battery cell 101 may include a lithium-ion secondary battery, a lithium-ion primary battery, a lithium-sulfur battery, a sodium-lithium-ion battery, a sodium-ion battery, or a magnesium-ion battery, etc., and the present embodiment does not limit this. The battery cell 101 may be cylindrical, flat, rectangular, or other shapes, and the present embodiment does not limit this. The battery cell 101 is divided into three types based on the packaging method: cylindrical battery cells, prismatic battery cells, and soft-pack battery cells, and the present embodiment does not limit this.

[0086] A battery cell 101 is the smallest unit that makes up the battery 100. In the battery 100, there can be multiple battery cells 101, and the multiple battery cells 101 can be connected in series, in parallel, or in a hybrid connection. A hybrid connection refers to multiple battery cells 101 being connected in both series and parallel. Multiple battery cells 101 can be directly connected in series, in parallel, or in a hybrid connection, and then the entire battery 101 structure is housed in a housing. Of course, the battery 100 can also be formed by first connecting multiple battery cells 101 in series, in parallel, or in a hybrid connection to form a battery 100 module, and then multiple battery modules 100 are then connected in series, in parallel, or in a hybrid connection to form a whole structure that is housed in a housing.

[0087] The electrical devices provided in the embodiments of the present application may be, but are not limited to, mobile phones, tablets, laptop computers, electric toys, electric tools, battery-powered vehicles, electric cars, ships, spacecraft, etc. The electric toys may include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and the spacecraft may include airplanes, rockets, space shuttles, and spacecraft, etc.

[0088] The vehicle can be a fuel-powered vehicle, a gas-powered vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle. A battery 100 is installed inside the vehicle and can be located at the bottom, front, or rear of the vehicle. Battery 100 can be used to power the vehicle, for example, as the vehicle's operating power source.

[0089] As shown in Figure 7, the vehicle may also include a controller 1001 and a motor 1002. Controller 1001 is used to control battery 100 to power motor 1002, for example, to meet the vehicle's power requirements for starting, navigation, and driving. In some embodiments, battery 100 can serve not only as the vehicle's operating power source but also as its driving power source, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0090] The cooling structure 10, the battery 100 and the electrical device 1000 provided in the embodiment of the present application are now described.

[0091] Please refer to Figures 1 to 6. The cooling structure 10 provided in the embodiment of the present application includes a side panel 111 and a cooling channel 113 arranged on at least one side of the side panel 111. The side panel 111 is configured to be able to deform toward the side where the cooling channel 113 is located and generate a deformable amount. The deformable amount at different positions of the side panel 111 is different.

[0092] Cooling refers to the process of reducing the temperature of a heating object by dissipating the heat of the heating object. The cooling structure 10 refers to a structure capable of implementing the cooling process, such as a cooling plate.

[0093] 4 and 5 , generally, the cooling structure 10 includes a cooling body 11, a liquid inlet structure 12, and a liquid outlet structure 13. A cooling channel 113 is disposed within the cooling body 11. The liquid inlet structure 12 is provided with a liquid inlet 120, and the liquid outlet structure 13 is provided with a liquid outlet 130. The liquid inlet 120 and the liquid outlet 130 are respectively connected to the cooling channel 113. The outer surface of the cooled component contacts the outer surface of the cooling body 11. A low-temperature cooling medium enters the cooling channel 113 through the liquid inlet 120. The cooling medium and the cooled component contact the inner and outer surfaces of the cooling body 11, respectively, completing heat exchange. The heat of the cooled component raises the temperature of the low-temperature cooling medium. The high-temperature cooling medium then flows out of the cooling channel 113 through the liquid outlet 130, removing heat from the cooled component.

[0094] The side plate 111 refers to a plate structure constituting at least a portion of the outline of the cooling body 11 .

[0095] In some embodiments, a cooling channel 113 is configured on one side of the side plate 111, with the side plate 111 forming part of the channel wall of the cooling channel 113. The other side of the side plate 111, facing away from the first side, contacts the cooled component, and the side plate 111 serves as a transfer medium for heat exchange between the cooling medium and the cooled component. On one side, i.e., the side of the side plate facing the cooled component, the side plate has a different amount of deformability.

[0096] In other embodiments, cooling channels 113 are provided on both sides of the side plate 111, so that the side plate 111 serves as a component of the channel wall of the cooling channels 113 on both sides. Both sides of the side plate 111 can contact the cooled parts, and the side plate 111 serves as a transfer medium for heat exchange between the cooling medium and the cooled parts.

[0097] The side panels have different amounts of deformability on the two sides—that is, the sides of the cooled components facing the central side panel. Because the cooling channels on both sides provide space for deformation, the two sides of the same straight line can have opposite amounts of deformability, and the cooling channels absorb some of this deformation.

[0098] Generally, the cooling body 11 is an integrally formed structure, and the side panels 111 are integrally connected to the rest of the cooling body 11 and are part of the overall outline structure of the cooling body 11. Generally, the side panels 111 may refer to the side panel structures with the largest area on the cooling body 11.

[0099] Typically, the cooling body 11 has one or more side panels 111 of maximum area. These side panels 111 have a certain extended area and thickness, with a large ratio of extended area to thickness. A larger extended area increases the contact area between the cooling body 11 and the cooled component, improving cooling efficiency. A smaller thickness facilitates rapid heat exchange between the low-temperature cooling medium and the high-temperature cooled component, improving cooling efficiency.

[0100] Among them, one-piece molding refers to a process of constructing a predetermined shape by deforming or extending a material body, or leaving a predetermined shape by partially removing a material body, including but not limited to the extension of the same material or the sequential extension of different materials, including but not limited to the process of using a stamping machine to stamp a blank material to deform it and finally form it into a predetermined shape, or using a forging tool to forge the blank material to deform it and finally form it into a predetermined shape, or using a cutting device to partially remove the material of the blank material to leave a part with a predetermined shape, or using a liquid material to be cast into a casting cavity adapted to the shape of the component and then cooled to obtain a component.

[0101] The process of pouring a liquid material into a casting cavity adapted to the shape of the component to obtain a component can involve obtaining a complete component in one cavity, into which one or more materials can be cast. Alternatively, a portion of the component can be obtained in one cavity, moved to another cavity, and another portion of the component obtained in the other cavity, and so on. Different portions of the complete component can be sequentially molded in different cavities, and the materials of the different portions of the complete component can be the same or different.

[0102] As shown in Figure 5 , cooling channel 113 is a channel structure disposed within cooling body 11 and has a specific extension length and cross-sectional dimensions. The specific extension length helps prolong the flow time of the cooling medium through cooling channel 113, thereby fully utilizing the cooling efficiency of the cooling medium. The specific cross-sectional dimensions help measure the amount of cooling medium that passes through per unit time, thereby maximizing the cooling efficiency of the cooling medium.

[0103] 5 and 6 , the side plate 111 serves as a heat exchange transmission portion. A cooling channel 113 is disposed on one side of the side plate 111, so that the side plate 111 forms part of the channel wall of the cooling channel 113. Generally, the cooling body 11 is provided with multiple cooling channels 113, each of which occupies a portion of the side plate 111. The cooling medium in the multiple cooling channels 113 exchanges heat with the cooled component via a portion of the side plate 111.

[0104] Deformation refers to the process by which a force acts on a structure, causing the relative positions of its particles to change, ultimately leading to a change in its external form. Deformability refers to the amount of change in a structure's external form along a predetermined direction due to a directional external force. Generally, deformation refers to regional deformation, resulting from changes in the structure's form at multiple points. Deformability refers to the change in the structure's shape, measured using regional changes, when at least part of the structure is deformed.

[0105] Generally, known deformation measurement techniques can be used to quantify the deformation of physical structures. Deformation measurement techniques involve measuring the deformation of structural objects to understand various factors such as their direction, magnitude, spatial distribution, and temporal changes, enabling accurate analysis and prediction.

[0106] Generally speaking, deformation measurement techniques can be roughly divided into two categories. One type obtains deformation data based on the external morphological information of the deformed area and analyzes or calculates this external morphological information. The other type obtains deformation data based on the internal stress information or pressure load of the deformed area and analyzes or calculates this internal stress information or pressure load.

[0107] For example, some more conventional measurement methods can be used to perform deformation measurement. These conventional measurement methods are generally based on geometry, obtain specific geometric parameters through instruments, and use geometric principles to calculate the required deformation trend or deformation amount, including but not limited to using optical or electronic levels to implement precision leveling methods, using electromagnetic wave rangefinders to implement trigonometric height measurement methods, trigonometric side measurement methods, traverse measurement methods, intersection measurement methods, etc.

[0108] Measurement methods based on image processing techniques can also be used, including but not limited to digital photogrammetry and real-time photogrammetry. Digital or real-time photography provides a wealth of information and is relatively accurate. This comprehensive and accurate photographic information, combined with its high utilization rate, allows for rapid determination of deformation processes and corresponding deformation amounts. Because photographic information can capture highly accurate deformation information, photogrammetry can accurately determine deformation amounts at any point, making it suitable for measuring local deformation within a narrow range.

[0109] Some more special measurement methods can also be used for deformation measurement, including but not limited to the use of laser collimators to implement collimation measurement methods, the use of inclinometers to implement deflection curve measurement methods, the use of indium tile wire ruler rangefinders to implement micro-distance precision measurement methods, etc. Special measurement methods can realize automatic monitoring and remote sensing monitoring, and the measurement accuracy and efficiency are relatively high, which are suitable for measuring local deformation information with a small range.

[0110] Deformation data can also be acquired and analyzed using an array of microsensor devices, including but not limited to a displacement sensor array, an acceleration sensor array, a fiber Bragg grating (FBG) strain sensor array, etc. Fiber Bragg grating (FBG) strain sensor arrays include but are not limited to fiber Bragg grating (FBG) strain sensor arrays and / or fiber Bragg grating (FBG) temperature sensor arrays.

[0111] The equivalent stiffness method can also be used to calculate the bending deformation and stress changes of the plate structure. The pressure load can be obtained and the corresponding bending deformation and stress changes can be analyzed using a force sensor array or piezoelectric ceramics. The displacement deformation of the structure can be measured based on the transverse cascade target measurement method.

[0112] The deformation measurement methods listed above are all known technologies, and only some of the known deformation measurement methods are listed. It should be noted that the measurement methods that can realize the deformation data of the plate body or surface of the plate structure generated in different areas are all applicable to the deformation measurement of the side plate 111 of the cooling structure 10 of the embodiment of the present application.

[0113] Furthermore, the deformation measurement of the side plate 111 of the cooling structure 10 of the embodiment of the present application can be a specific numerical measurement of the deformation of different regions, and a change trend can be obtained based on specific numerical analysis, so that the change trend meets the expansion trend of the corresponding cooled component. The specific numerical measurement includes, but is not limited to, continuous numerical measurement of dense points or numerical measurement of multiple extreme points.

[0114] Alternatively, the deformation measurement of the side panel 111 of the cooling structure 10 of the embodiment of the present application can also be to directly obtain the change trend of the entire deformation area, so that the change trend meets the corresponding expansion trend of the cooled part, including but not limited to obtaining the visualization trend of the entire deformation area through image processing technology or simulation generation technology.

[0115] In the cooling structure 10 provided in the embodiment of the present application, at least one side of the side plate 111 is provided with a cooling channel 113 for a cooling medium to flow through. The cooling medium removes heat from the cooled component through contact with the side plate 111.

[0116] The side panels 111 facing the cooling channels 113 can deform, generating varying amounts of deformability. This deformability varies at different locations on the side panels 111. The sides of the cooled component that contact the side panels 111 expand to varying degrees, generating varying amounts of resistance in different areas of the side panels 111. The varying amounts of deformation on the side panels 111 provide the necessary expansion space for these varying degrees of expansion, allowing the cooled component to expand differently based on internal stress, thereby maintaining or extending its service life.

[0117] In some embodiments, a cooling channel 113 is configured on one side of the side plate 111 of the cooling structure 10 for the cooling medium to flow through, and the other side of the side plate 111 is provided for contacting the cooled component so that the cooling medium removes heat from the cooled component through contact.

[0118] The side panel 111 facing the cooling channel 113 can deform, generating a deformable amount. Different areas of the side panel 111 can deform to varying degrees. Different areas of the cooled component that contact the side panel 111 expand to varying degrees, generating varying resistance forces on different areas of the side panel 111. The varying deformations of different areas of the side panel 111 provide the necessary expansion space for varying expansion levels, allowing different areas of the cooled component to expand adaptively in response to changes in internal stress, thereby maintaining or extending the service life of the cooled component.

[0119] In some embodiments, the deformability of the side panel 111 decreases from the middle area of ​​the side panel 111 toward the edge area of ​​the side panel 111 .

[0120] The middle area of ​​the side panel 111 refers to the plate area in the middle of the side panel 111 , and the edge area of ​​the side panel 111 refers to the plate area outside the middle area and forming the outline of the side panel 111 .

[0121] For example, referring to FIG. 5 , the edge regions may be provided on both sides of the middle region along a first direction, and / or the edge regions may be provided on both sides of the middle region along a second direction, wherein the first direction and the second direction are perpendicular.

[0122] As shown in FIG. 4 , a direction a is shown in which the middle area of ​​the side panel 111 points to the edge area. The direction a can be any direction diverging from the middle area toward the edge area.

[0123] In some embodiments, in the first direction or the second direction, the deformability of the side panel 111 decreases from the middle area to the edge area.

[0124] Generally, in order to improve cooling efficiency, the entire surface area of ​​the side plate 111 is in contact with the cooled component, maximizing the area of ​​the side plate 111 to improve cooling performance.

[0125] Furthermore, when the number of cooling bodies 11 and cooled parts is arranged one to one, the two adopt a contact method in which the cooled part covers the side plate 111, so that the middle area of ​​the side plate 111 contacts the middle area of ​​the surface of the cooled part, and the edge area of ​​the side plate 111 is located inside the edge of the surface or flush with it.

[0126] Alternatively, when the number of cooling bodies 11 is arranged in a one-to-many manner, that is, one cooling body 11 corresponds to cooling multiple cooled parts, the surfaces of the multiple cooled parts on the same side are in contact with the side plate 111, and the multiple cooled parts can be arranged in any array, and the edge area of ​​the side plate 111 is located inside or flush with the edge of the same side surface of the array.

[0127] For example, multiple cooled parts are arranged in sequence along the first direction, and the edge area on the side plate with a deformable amount difference from the middle area can be at least arranged on both sides of the middle area of ​​the side plate along the second direction, and located on the inner side of the edge of the multiple cooled parts along the second direction.

[0128] In some embodiments, in the first direction or in the second direction, the deformability of the side panel 111 decreases gradually from the middle area to the edge area.

[0129] A gradient decrease means that the side plate 111 is divided into several different plate sections from the middle region to the edge region. Each plate section occupies a certain dimension in the direction from the middle region to the edge region. The deformability of different plate sections in this direction decreases successively, and the deformability of different regions of the same plate section is roughly the same. The dimensions occupied by different plate sections in the direction from the middle region to the edge region can be the same or different, allowing different sized areas of the cooled component to expand to different degrees.

[0130] It should be noted that, in the direction from the middle region of the side panel 111 toward the edge region of the side panel 111, the dimensions occupied by different panel portions are not necessarily related to the amount of deformability they can provide. A panel portion may occupy a larger dimension in the direction from the middle region of the side panel 111 toward the edge region of the side panel 111, but may provide a smaller amount of deformability. Alternatively, a panel portion may occupy a smaller dimension in the direction from the middle region of the side panel 111 toward the edge region of the side panel 111, but may provide a larger amount of deformability.

[0131] Of course, in other embodiments, the deformability of the side panel 111 can be continuously and gradually reduced from the middle area of ​​the side panel 111 to the edge area of ​​the side panel 111, which can be adapted to the situation where the expansion degree of the cooled component is continuously and gradually weakened from the middle area to the edge area.

[0132] Generally speaking, in actual situations, taking the square battery cell 101 as an example, the surface with the largest area on it contacts the side with the largest area of ​​the cooling body 11. The middle area of ​​the surface with the largest area expands most obviously. From the middle area to the edge area, the degree of expansion tends to weaken overall. The weakening trend is relatively gentle, without obvious mutations. Therefore, its expansion trend can be understood as being continuously formed by different expansions in multiple different areas, and the expansion change pattern of multiple different areas is roughly weakening from the middle area to the edge area.

[0133] When designing the side panel 111, it is adapted to the expansion change rules of multiple different areas, and the deformable variable of the side panel 111 decreases in a gradient, that is, the deformable variables of different panel parts are designed regularly. In the direction from the middle area to the edge area, the sizes occupied by different panel parts on the side panel can be compared with the sizes occupied by different areas on the cooled part, which is more consistently consistent with the expansion trend of the cooled part.

[0134] Generally, the central region of the surface of the cooled part expands the most, and the expansion decreases as it moves from the central region toward the edges. To adapt to the surface expansion trend of the cooled part, the side panels 111 are configured so that their deformability decreases gradually from the central region toward the edges. This allows the side panels' deformability to align with the expansion trend of the cooled part, further enabling the side panels 111 to meet the cooling part's expansion requirements.

[0135] 4 and 6 , in some embodiments, the side panel 111 includes a first deformable portion 1111, a second deformable portion 1112, and a third deformable portion 1113, which are sequentially arranged from the middle region of the side panel 111 toward the edge region of the side panel 111. The deformability of the first deformable portion 1111 is greater than or equal to the deformability of the second deformable portion 1112, and the deformability of the second deformable portion 1112 is greater than the deformability of the third deformable portion 1113.

[0136] The first deformable portion 1111 refers to the plate portion located in the middle region of the side plate 111, occupying a certain area in the middle region of the side plate 111. As far as possible, when the side plate 111 has a geometric center, it is most appropriate that the geometric center of the first deformable portion 1111 coincides with the geometric center of the side plate 111.

[0137] The third deformation portion 1113 refers to the plate portion of the edge area of ​​the side plate 111, which can be understood as the part that constitutes the outline of the side plate 111. The function of the third deformation portion 1113 is to accept the resistance of the cooled part and at the same time keep the outline of the side plate 111 from being significantly changed by the cooled part.

[0138] The second deformable portion 1112 refers to the plate portion disposed between the first deformable portion 1111 and the second deformable portion 1112. In the direction from the middle region to the edge region, the first deformable portion 1111, the second deformable portion 1112, and the third deformable portion 1113 each occupy a certain size, and the sizes occupied by different deformable portions can be the same or different.

[0139] For example, generally, with the center line L extending along the first direction of the side panel 111 as the boundary, taking one side of the center line L as an example, the first deformation portion 1111, the second deformation portion 1112 and the third deformation portion 1113 are successively away from the center line along the direction perpendicular to the center line L, and the size occupied by the first deformation portion 1111 is larger than the size occupied by the second deformation portion 1112, and also larger than the size occupied by the third deformation portion 1113, while the size occupied by the second deformation portion 1112 and the size occupied by the third deformation portion 1113 are roughly equal.

[0140] In some embodiments, as shown in FIG4 , the side panels 111 can be roughly symmetrical on either side of the centerline L. In particular, when a single side panel 111 accommodates multiple cooled components, the components are sequentially arranged along the centerline L. The first deformable portion 1111, the second deformable portion 1112, and the third deformable portion 1113 provide deformation space for the components in a direction perpendicular to the centerline, thereby satisfying both the cooling requirements and the expansion requirements of the components. Naturally, within the dimensions occupied by each deformable portion, the deformable amount is roughly consistent, so that the overall trend decreases in a gradient.

[0141] Generally, in some embodiments, the cooling structure 10 has a middle region and an edge region. In a direction perpendicular to the centerline L, the dimensions of the edge region and the middle region are approximately equal, with a significant difference in deformability between the two. The middle region of the side panel 111 matches the middle region of the cooled component, providing adaptive deformable space for its expansion. The edge region of the side panel 111 receives resistance from the cooled component while simultaneously maintaining the profile of the side panel 111 from being significantly altered by the cooled component.

[0142] Compared with the solution in which the deformability of the entire side plate 111 is uniformly set, the middle area and the edge area have a more obvious difference in deformability, which can meet the expansion requirements of the cooled component to a certain extent.

[0143] Based on the previous embodiment, in order to make the side panel 111 more finely adapt to the expansion requirements of the cooled component, the part of the edge area close to the middle area in the previous embodiment (that is, the second deformation part 1112) is designed to be softer, that is, compared with the part far away from the middle area (that is, the third deformation part 1113), its deformability is increased, and the deformable space it provides is increased, but it is still smaller than the deformability that the middle area (that is, the first deformation part 1111) can provide, or it is made the same as the deformability of the middle area.

[0144] Compared with the previous embodiment, a second deformation portion 1112 is added between the first deformation portion 1111 and the third deformation portion 1113, and the deformable amount between the first deformation portion 1111 and the third deformation portion 1113 is increased, so that the side plate 111 is more adapted to the expansion requirements of the cooled part, further maintaining the service life of the cooled part, or extending its service life.

[0145] Similarly, in one embodiment, the design area of ​​the deformable variable of the first deformable portion 1111 is expanded, and the deformable variable of the expanded portion is between the deformable variables of the original first deformable portion 1111 and the third deformable portion 1113, so that the side panel 111 is more adapted to the expansion requirements of the cooled component.

[0146] The side panel 111 is divided into multiple different panel parts from the middle area to the edge area, and the deformable amounts of the different panel parts are differentiated and compared to make them change in a gradient. The change of the deformable amount is more refined and more suitable for the expansion requirements of the cooled component.

[0147] In some embodiments, the side plate 111 includes two second deformable portions 1112 and two third deformable portions 1113. The two second deformable portions 1112 are disposed on opposite sides of the first deformable portion 1111, and the two third deformable portions 1113 are disposed on opposite sides of the two second deformable portions 1112 away from the first deformable portion 1111.

[0148] Considering that there are edge areas on any two opposite sides of the middle area, a second deformation part 1112 and a third deformation part 1113 are set on the opposite sides of the first deformation part 1111 to meet the expansion requirements of the cooled part in the entire area where the side plate 111 contacts the cooled part.

[0149] For example, when the number of cooling bodies 11 and cooled parts is arranged one to one, the two second deforming parts 1112 are provided on both sides of the first deforming part 1111 along the first direction, and the two third deforming parts 1113 are provided on both sides of the two second deforming parts 1112 along the first direction away from the first deforming part 1111. Alternatively, the two second deforming parts 1112 are provided on both sides of the first deforming part 1111 along the second direction, and the two third deforming parts 1113 are provided on both sides of the two second deforming parts 1112 along the second direction away from the first deforming part 1111. Alternatively, the second deforming parts 1112 are provided on both sides of the first deforming part 1111 along the first direction and the second direction to form an enclosure, and the third deforming parts 1113 are provided on the periphery of the second deforming part 1112 to form an enclosure.

[0150] For example, when the number of cooling bodies 11 and the number of cooled parts are configured in a one-to-many manner, multiple cooled parts are arranged along the first direction, two second deformation parts 1112 are arranged on both sides of the first deformation part 1111 along the second direction, and two third deformation parts 1113 are arranged on both sides of the two second deformation parts 1112 away from the first deformation part 1111 along the second direction.

[0151] In some embodiments, the cooling structure 10 includes two side plates 111 . The two side plates 111 are disposed opposite to each other, and the cooling channel 113 is disposed between the two side plates 111 .

[0152] Both side plates 111 can be deformed toward each other, and cooled parts can be set on the sides of the two side plates 111 that are opposite to each other. The cooled parts on both sides are cooled through the cooling channel 113 between the two side plates 111, thereby improving the integration while meeting the expansion requirements of the cooled parts.

[0153] In some embodiments, the cooling structure 10 includes a plurality of partitions 112 disposed between two side panels 111. The partitions 112 extend along a first direction and are spaced apart along a second direction. Two adjacent partitions 112 and the two side panels 111 together form a cooling channel 113 extending along the first direction. In the second direction, the deformability of the side panels 111 decreases gradually from the middle region toward the edge regions of the side panels 111.

[0154] The partition 112 refers to a plate structure having a large ratio of extended area to thickness and a large ratio of length to width, wherein the extended area refers to the area formed by the length and width combined.

[0155] Typically, the partitions 112 are integrally formed with the side panels 111. The thickness of the partitions 112, the angle at which they connect to the side panels 111, and the spacing between adjacent partitions 112 can all serve as design parameters for the deformability of the side panels 111. By varying these parameters, the deformability of the side panels 111 can be varied. Different portions of the side panels 111 along the second direction can have different deformabilities based on these parameters, thereby creating a deformability variation trend that aligns with the expansion trend of the cooled component.

[0156] Multiple partitions 112 are arranged at intervals along the second direction, and the deformability of the side panel 111 has a changing trend in the second direction. Compared with the deformability of the side panel 111 having a changing trend in the first direction, it is more conducive to using multiple partitions 112 to achieve different configurations of the deformability.

[0157] If the cooling channel 113 extends in the first direction and the direction in which the deformability of the side plate 111 varies, the design of the cooling body 11 would inevitably increase the difficulty. Therefore, to meet the cooling requirements of multiple cooled components while providing corresponding deformation space according to the expansion requirements of the cooled components, the cooling channel 113 extends in the first direction and the deformability of the side plate 111 varies in the second direction. This not only meets different requirements from different directions, but also reduces the design difficulty of the cooling body 11.

[0158] In some embodiments, in the second direction, from the middle area toward the edge area of ​​the side panel 111, the side panel 111 includes a first deformable portion 1111, a second deformable portion 1112, and a third deformable portion 1113. The deformability of the first deformable portion 1111 is greater than that of the second deformable portion 1112, and the deformability of the second deformable portion 1112 is greater than that of the third deformable portion 1113.

[0159] Different from the first direction, in the second direction, the side panel 111 is divided into multiple different plate parts from the middle area to the edge area, and the deformable variables of the three different deformable parts are distinguished and compared to make them change in a gradient. The change of the deformable variable in the second direction is more refined and more adapted to the expansion requirements of the cooled part in the second direction.

[0160] In some embodiments, the partition 112 includes a first partition 1121 connected to the first deformation portion 1111 at an angle, and a second partition 1122 connected to the second deformation portion 1112 at an acute angle, and the acute angle α between the second partition 1122 and the second deformation portion 1112 is smaller than the angle β between the first partition 1121 and the first deformation portion 1111.

[0161] Generally, from the edge area of ​​the side panel 111 to the middle area, the deformation resistance of the side panel 111 tends to weaken. The deformation resistance of the edge area is relatively high, which is conducive to maintaining the contour shape of the cooling structure 10. The deformation resistance of the middle area is relatively weak, which is conducive to absorbing the resistance of the middle area where the cooled part expands the most and deforming accordingly.

[0162] Generally, the third deformable portion 1113 has the highest deformation resistance. The second deformable portion 1112 and the first deformable portion 1111 have roughly similar structures. Because the second deformable portion 1112 is close to the third deformable portion 1113, the third deformable portion 1113 strengthens the deformation resistance of the second deformable portion 1112. Therefore, even though the second deformable portion 1112 and the first deformable portion 1111 have roughly similar structures, the deformation resistance of the second deformable portion 1112 is much higher than that of the first deformable portion 1111 due to the auxiliary reinforcement effect of the third deformable portion 1113.

[0163] To relatively weaken the deformation resistance of the second deformable portion 1112 and increase its deformability to meet the expansion requirements of the corresponding local area of ​​the cooled component, while still maintaining a lower deformation resistance than the third deformable portion 1113 and higher than the deformation resistance of the first deformable portion 1111, the angle between the second partition 1122 and the second deformable portion 1112 is set to an acute angle, so that the acute angle formed by the second partition 1122 and the second deformable portion 1112 is smaller than the angle formed by the first partition 1121 and the first deformable portion 1111. The deformability of the second deformable portion 1112 is increased, but still smaller than that of the first deformable portion 1111. The first deformable portion 1111, second deformable portion 1112, and third deformable portion 1113 decrease in a gradient to meet the expansion and change requirements of the surface of the cooled component.

[0164] In some embodiments, the first partition 1121 is connected to the first deformation portion 1111 at an acute angle.

[0165] The first baffle 1121 forms an acute angle or a right angle with the first deformable portion 1111. A smaller angle is more conducive to increasing the deformability. Compared to a right angle, the acute angle formed by the first baffle 1121 and the first deformable portion 1111 is more conducive to increasing the deformability of the first deformable portion 1111, satisfying the resistance and subsequent deformation of the central area of ​​the cooled component where the expansion is greatest.

[0166] In some embodiments, there are one or more second separators 1122 and more than one first separator 1121. The distance between two adjacent second separators 1122 is greater than the distance between two adjacent first separators 1121, and / or the distance between adjacent second separators 1122 and first separators 1121 is greater than the distance between two adjacent first separators 1121.

[0167] In some embodiments, there are multiple first partitions 1121 , and there is only one second partition 1122 . The distance between adjacent second partitions 1122 and first partitions 1121 is greater than the distance between two adjacent first partitions 1121 .

[0168] In other embodiments, there are multiple first separators 1121 and multiple second separators 1122. In some embodiments, the distance between two adjacent second separators 1122 is greater than the distance between two adjacent first separators 1121, and the distance between adjacent second separators 1122 and first separators 1121 is greater than the distance between two adjacent first separators 1121.

[0169] In other embodiments, the distance between two adjacent second partitions 1122 is greater than the distance between two adjacent first partitions 1121 , and the distance between adjacent second partitions 1122 and first partitions 1121 is equal to the distance between two adjacent first partitions 1121 .

[0170] In other embodiments, the distance between two adjacent second partitions 1122 is equal to the distance between two adjacent first partitions 1121 , and the distance between adjacent second partitions 1122 and first partitions 1121 is greater than the distance between two adjacent first partitions 1121 .

[0171] The spacing between the partitions 112 will affect the deformability of the deformable part. A larger spacing is more conducive to increasing the deformability. Through the above embodiment, changing the partition spacing can provide more deformability to meet the needs of cooled parts with higher expansion requirements.

[0172] Generally, the third deformable portion 1113 has the highest deformation resistance, the second deformable portion 1112 has the second highest deformation resistance, and the first deformable portion 1111 has the weakest deformation resistance. Through the above solution, the deformation resistance of the third deformable portion 1113 and the second deformable portion 1112 can be appropriately weakened, thereby increasing the deformability. Specifically, while ensuring that the third deformable portion 1113 has the highest deformability, the deformability of the third deformable portion 1113 and the second deformable portion 1112 can be appropriately increased.

[0173] In some cases, by improving the angle between the partition 112 and the side plate 111, for the cooled parts with higher expansion change requirements, simply improving the angle between the partition 112 and the deformation part is not enough to provide sufficient deformable space. Therefore, based on the improvement of the angle between the partition 112 and the deformation part, the improvement of the partition spacing is added to achieve sufficient adjustment of the overall deformability of the side plate 111.

[0174] The partition 112 includes one or more second partitions 1122 connected to the second deformable portion 1112, and a plurality of first partitions 1121 connected to the first deformable portion 1111. The distance between two adjacent second partitions 1122 is greater than the distance between two adjacent first partitions 1121, and / or the distance between adjacent second partitions 1122 and first partitions 1121 is greater than the distance between two adjacent first partitions 1121.

[0175] Generally, the distance between any two adjacent second partitions 1122 is equal, and the distance between any two adjacent first partitions 1121 is equal.

[0176] In some embodiments, there are multiple first partitions 1121 , and there is only one second partition 1122 . The distance between adjacent second partitions 1122 and first partitions 1121 is greater than the distance between two adjacent first partitions 1121 .

[0177] In other embodiments, there are multiple first separators 1121 and multiple second separators 1122. In some embodiments, the distance between two adjacent second separators 1122 is greater than the distance between two adjacent first separators 1121, and the distance between adjacent second separators 1122 and first separators 1121 is greater than the distance between two adjacent first separators 1121.

[0178] In other embodiments, the distance between two adjacent second partitions 1122 is greater than the distance between two adjacent first partitions 1121 , and the distance between adjacent second partitions 1122 and first partitions 1121 is equal to the distance between two adjacent first partitions 1121 .

[0179] In other embodiments, the distance between two adjacent second partitions 1122 is equal to the distance between two adjacent first partitions 1121 , and the distance between adjacent second partitions 1122 and first partitions 1121 is greater than the distance between two adjacent first partitions 1121 .

[0180] In order to relatively weaken the deformation resistance of the second deformable portion 1112 and increase the deformability of the second deformable portion 1112 to meet the expansion requirements of the corresponding local area of ​​the cooled component, but still lower than the deformation resistance of the third deformable portion 1113 and higher than the deformation resistance of the first deformable portion 1111, the spacing between two adjacent second partitions 1122 and / or the spacing between adjacent second partitions 1122 and first partitions 1121 is set to a large spacing, and the spacing between two adjacent first partitions 1121 is set to a small spacing. The larger the spacing, the more conducive it is to increasing the deformability. The deformability of the second deformable portion 1112 increases, but is still smaller than the deformability of the first deformable portion 1111. The first deformable portion 1111, the second deformable portion 1112, and the third deformable portion 1113 decrease in a gradient to meet the expansion change requirements of the surface of the cooled component.

[0181] In some embodiments, the second partition 1122 is connected to the second deformable portion 1112 at an angle, and the first partition 1121 is connected to the first deformable portion 1111 at an angle, and the angle α between the second partition 1122 and the second deformable portion 1112 is less than or equal to the angle β between the first partition 1121 and the first deformable portion 1111.

[0182] For cooled components with higher expansion requirements, simply improving the spacing between the partitions 112 is insufficient to provide sufficient space for deformation. Therefore, based on the improved spacing between the partitions 112, the angle between the partitions 112 and the deformable portion is also improved. A smaller angle is more conducive to increasing the deformability. By providing more deformability, the cooled components with higher expansion requirements can be satisfied. The angle between the first partition 1121 and the first deformable portion 1111, and the angle between the second partition 1122 and the second deformable portion 1112, can both be acute or right angles.

[0183] In some embodiments, the thickness of the second separator 1122 is smaller than the thickness of the first separator 1121 , and / or the number of the second separators 1122 is smaller than the number of the first separators 1121 .

[0184] For cooled parts with higher expansion change requirements, improving the spacing between the partitions 112 and / or the angle between the partitions 112 and the deformation part is not enough to provide sufficient deformable space, and the thickness and / or number of the partitions 112 are increased. The smaller the thickness, the more conducive to increasing the deformability, and the smaller the number, the more conducive to increasing the deformability. By providing more deformability, the cooled parts with higher expansion requirements can be met.

[0185] Of course, the implementation of the previous embodiment needs to ensure that the cooling body 11 has the required strength or rigidity. The partition 112 serves as the internal support of the cooling body 11, and its plate thickness will affect the overall frame of the cooling body 11, that is, it will affect the cooling body 11 to be roughly stable under the clamping of the cooled part, and will not cause deformation beyond the preset setting.

[0186] In some embodiments, in actual design, it is more inclined to make the plate thickness of the first deformation part 1111 the same as the plate thickness of the second deformation part 1112, the plate thickness of the second partition 1122 the same as the plate thickness of the first partition 1121, and the plate thickness of the third deformation part 1113 greater than the plate thickness of the first deformation part 1111 and the second deformation part 1112.

[0187] The plate thickness of the third deformation part 1113 is greater than the plate thickness of the first deformation part 1111 and the second deformation part 1112, which is conducive to maintaining the contour shape of the cooling structure 10. The plate thickness of the first deformation part 1111 is the same as the plate thickness of the second deformation part 1112, and the plate thickness of the second partition 1122 is the same as the plate thickness of the first partition 1121, which is conducive to adapting the angle between the partition 112 and the deformation part and the distance between the partitions 112 on the basis of consistent plate thickness without being affected by inconsistent plate thickness.

[0188] In some embodiments, the thickness of the third deformable portion 1113 gradually increases in a direction away from the second deformable portion 1112 , and two ends of the two third deformable portions 1113 of the two side plates 111 away from the second deformable portion 1112 are closed and connected.

[0189] The two third deformation parts 1113 are closed and connected at the two ends away from the second deformation part 1112, thereby improving the deformation resistance of the third deformation part 1113 and compensating for the weakening effect on the deformation resistance of the third deformation part 1113 caused by the acute angle between the second partition 1122 and the second deformation part 1112.

[0190] In some embodiments, the cooling structure 10 includes two side plates 111 disposed opposite each other, and a plurality of partitions 112 disposed between the two side plates 111. The partitions 112 extend along a first direction, and the plurality of partitions 112 are spaced apart along a second direction. Two adjacent partitions 112 and the two side plates 111 together form a cooling channel 113 extending along the first direction.

[0191] The side plate 111 can contact multiple cooled parts arranged along a first direction. In the second direction, from the middle area to the edge area 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 deformability of the first deformable portion 1111 is greater than that of the second deformable portion 1112, and the deformability of the second deformable portion 1112 is greater than that of the third deformable portion 1113.

[0192] The partition 112 includes a first partition 1121 connected to the first deformable portion 1111 at an acute angle, and a second partition 1122 connected to the second deformable portion 1112 at an acute angle. The acute angle between the second partition 1122 and the second deformable portion 1112 is smaller than the acute angle between the first partition 1121 and the first deformable portion 1111. There are multiple first partitions 1121 and only one second partition 1122. The spacing between adjacent second partitions 1122 and first partitions 1121 is greater than the spacing between two adjacent first partitions 1121.

[0193] In the cooling structure 10 provided in the embodiments of the present application, the contacting sides of the side plate 111 and the cooled component are generally planar. For example, the cooled component may be a prismatic battery 100. Even if the contacting sides of the side plate 111 and the cooled component are non-planar, such as one slightly concave and the other slightly convex, the same principles can be used to design a cooling body 11 that meets the requirements to cool the cooled component.

[0194] Of course, the cooled part may also have a flat surface that contacts the side plate 111, while the other side surfaces may be non-flat. Alternatively, the contacting side surfaces of the side plate 111 and the cooled part may be formed by multiple planes at an angle. For example, if the side surface of the cooled part includes two angled planes, the cooling body 11 can be clamped therebetween. The side surfaces of the cooling body 11 can also be designed to have a variable deformability according to the principles of the embodiments of the present application.

[0195] In addition, it should be noted that the deformable amount of the first deformable part 1111 is greater than the deformable amount of the second deformable part 1112, and 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 panel 111 can construct the overall trend of the deformation. The values ​​of the multiple angles α between the multiple first partitions 1121 and the first deformable part 1111 may be the same or different, and the values ​​of the multiple angles β between the multiple second partitions 1122 and the second deformable part 1112 may be the same or different.

[0196] 3 to 6 , another object of the embodiments of the present application is to provide a battery 100 , which includes a battery cell 101 and the cooling structure 10 as described above, wherein at least one side of the side plate 111 contacts the side surface of the battery cell 101 .

[0197] In the battery 100 provided in the embodiment of the present application, at least one side of the side plate 111 is provided with a cooling channel 113 for the flow of a cooling medium. At least one side of the side plate 111 contacts the battery cell 101, allowing the cooling medium to remove heat from the battery cell 101 through this contact. Different areas of the battery cell 101 in contact with the side plate 111 expand to varying degrees, generating varying resistance forces on different areas of the side plate 111. The varying deformations of different areas of the side plate 111 provide the necessary expansion space for varying degrees of expansion, allowing different areas of the battery cell 101 to adaptively expand in response to changes in internal stress, thereby maintaining a normal service life for the battery cell 101 or extending its service life.

[0198] In some embodiments, the battery cell 101 is square, and at least one side of the side plate contacts the largest surface of the battery cell 101 .

[0199] The square may be a cube or a cuboid, and the surface with the largest area may be one or more, and the side panels 111 provided in this embodiment may be used to meet the cooling requirements of the cooled component.

[0200] The expansion of the largest surface area of ​​the battery cell 101 has an obvious changing trend. The expansion degree is most obvious in the middle area. From the middle area to the edge area, the expansion degree tends to decrease. One side of the side plate 111 contacts the largest surface area of ​​the battery cell 101, which is more suitable for the expansion requirements of the largest surface area.

[0201] In some embodiments, the cooling channel 113 extends along a first direction. The battery 100 includes a plurality of battery cells 101 arranged sequentially along the first direction, with the plurality of largest surfaces contacting the same side of the side plate. In a second direction perpendicular to the first direction, the deformability of the side plate 111 decreases gradually from the middle region toward the edge region of the side plate 111.

[0202] The cooling channels 113 extend in the same direction as the arrangement of the multiple battery cells 101, allowing the cooling structure 10 to efficiently cool the multiple battery cells 101. In the second direction, the side panels 111 are configured so that their deformability decreases gradually from the middle region to the edge regions, meeting the expansion requirements of the largest surface area of ​​each battery cell 101 arranged along the first direction.

[0203] 7 , another object of the embodiment of the present application is to provide an electrical device 1000 , which includes the battery 100 as described above.

[0204] The electrical device 1000 provided in the embodiment of the present application is applied with the battery 100 provided in the embodiment of the present application, and the battery 100 provided in the embodiment of the present application is applied with the cooling structure 10 provided in the present application. The cooling structure 10 allows different areas of the battery 100 to expand adaptively according to changes in internal stress, and is not likely to cause adverse inhibition on the expansion of the battery 100, which is beneficial to improving the safety of the battery 100 and improving the safety of the electrical device 100.

[0205] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A cooling structure, characterized in that: The cooling structure comprises a side plate and a cooling channel arranged on at least one side of the side plate; The side plate is configured to be deformable toward the side where the cooling channel is located and generate 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: From the middle area of ​​the side plate toward the edge area of ​​the side plate, the deformability of the side plate decreases.

3. The cooling structure according to claim 1 or 2, characterized in that: The side plate comprises a first deformation portion, a second deformation portion and a third deformation portion which are sequentially arranged from the middle area to the edge area 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.

4. The cooling structure according to claim 3, characterized in that: The side plate includes two of the second deformation parts and two of the third deformation parts; The two second deformation parts are arranged on two opposite sides of the first deformation part, and the two third deformation parts are arranged on two sides of the two second deformation parts away from the first deformation part.

5. The cooling structure according to any one of claims 1 to 4, characterized in that: The cooling structure comprises two side plates, the two side plates are arranged opposite to each other, and the cooling channel is arranged between the two side plates.

6. The cooling structure according to claim 5, characterized in that: The cooling structure comprises a plurality of partitions disposed between the two side plates; The partition plate extends along the first direction, the plurality of partition plates are arranged at intervals along the second direction, and two adjacent partition plates and two side plates are combined to form the cooling channel extending along the first direction; In the second direction, from the middle area to the edge area of ​​the side plate, the deformability of the side plate decreases; wherein the first direction is perpendicular to the second direction.

7. The cooling structure according to claim 6, characterized in that: In the second direction, from the middle area of ​​the side plate to the edge area, the side plate includes a first deformation portion, a second deformation portion and a third deformation portion; 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, characterized in that: The partition includes a first partition connected to the first deformation portion at an angle, and a second partition connected to the second deformation portion at an acute angle, wherein the acute angle between the second partition and the second deformation portion is smaller than the angle between the first partition and the first deformation portion.

9. The cooling structure according to claim 8, characterized in that: The first partition is connected to the first deformation portion at an acute angle.

10. The cooling structure according to claim 8 or 9, characterized in that: The number of the second partitions is one or more, and the number of the first partitions is plural; The distance between two adjacent second partitions is greater than the distance between two adjacent first partitions; And / or, the distance between adjacent second partitions and first partitions is greater than the distance between two adjacent first partitions.

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

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

13. The cooling structure according to any one of claims 8 to 12, characterized in that: The thickness of the second separator is smaller than the thickness of the first separator; And / or, the number of the second partitions is less than the number of the first partitions.

14. The cooling structure according to any one of claims 8 to 12, characterized in that: The thickness of the first deformation portion is the same as that of the second deformation portion, the thickness of the second partition is the same as that of the first partition, and the thickness of the third deformation portion is greater than that of the first deformation portion and the second deformation portion.

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

16. A battery, characterized in that: The battery comprises a battery cell, and a cooling structure according to any one of claims 1 to 15, wherein at least one side of the side plate is in contact with a side surface of the battery cell.

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

18. The battery according to claim 16, characterized in that: The cooling channel extends along the first direction, the battery comprises a plurality of battery cells arranged in sequence along the first direction, and the surfaces with the largest areas of the plurality of battery cells are in contact with the same side of the side plate; In a second direction perpendicular to the first direction, from the middle area to the edge area of ​​the side plate, the deformability of the side plate decreases.

19. An electrical device, characterized in that: The electrical device comprises a battery as claimed in any one of claims 16 to 18.

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