Temperature regulation component, battery assembly and vehicle

Abstract

A temperature regulation component, a battery assembly and a vehicle. The temperature regulation component comprises a heat conduction plate and heating films, wherein the heating films are arranged on two sides of the heat conduction plate in the direction of thickness of the heat conduction plate, and the heating films are used for heating battery cells.

Description

Temperature control components, battery assemblies and vehicles

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202420395621.3 and application date of February 29, 2024, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the field of battery technology, and in particular to a temperature regulating component, a battery assembly and a vehicle. Background Art

[0004] In related technologies, to enable batteries to operate normally in low-temperature environments, a temperature control component is typically required to heat the battery to ensure it operates within its normal temperature range. However, existing temperature control components have low heating efficiency, requiring improvement.

[0005] Summary of the Invention

[0006] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to provide a temperature regulating component that has a large heating area and can heat the battery cells on both sides of the temperature regulating component in the thickness direction, thereby making the temperature regulating component more efficient and thus improving the heating efficiency of the battery cells.

[0007] The present application also proposes a battery assembly having the above-mentioned temperature regulating component.

[0008] The present application also proposes a vehicle having the battery assembly.

[0009] According to the first embodiment of the present application, the temperature regulating component includes a heat conducting plate and a heating film. The heating films are provided on both sides of the heat conducting plate in the thickness direction, and the heating films are used to heat the battery core.

[0010] According to the temperature regulating component of the embodiment of the present application, the temperature regulating component includes a heat conducting plate and a heating film. The heating film is used to heat the battery cell, and heating films are provided on both sides of the heat conducting plate in the thickness direction, which can increase the heating area of ​​the temperature regulating component, thereby making the heating efficiency of the temperature regulating component higher, thereby improving the heating efficiency of the battery cell.

[0011] According to some embodiments of the present application, the heating film includes a heating zone, which is used to heat the battery core. The projection of the heating zone on the reference plane is a first projection, and the projection of the heat conducting plate on the reference plane is a second projection. The first projection is located within the second projection, and the reference plane is a plane perpendicular to the thickness direction of the heat conducting plate.

[0012] According to some embodiments of the present application, the area ratio of the first projection to the second projection is 40% to 60%.

[0013] According to some embodiments of the present application, a portion of the heat conducting plate located on the outer periphery of the heating zone is a connection zone, and the connection zone is provided with an adhesive layer, and the adhesive layer is used to connect with the battery core.

[0014] According to some embodiments of the present application, the adhesive layer is a thermally conductive adhesive layer.

[0015] According to some embodiments of the present application, the projection of the connection area on the reference plane is a third projection, and an area ratio of the third projection to the second projection is 40% to 60%.

[0016] According to some embodiments of the present application, the heating film includes a heating structure and an insulating heat-conductive film, and the heating structure is connected to a side of the insulating heat-conductive film facing the heat-conductive plate.

[0017] According to some embodiments of the present application, the insulating heat-conductive film has a backing adhesive layer on a side facing the heat-conducting plate, and the heating film is connected to the heat-conducting plate through the backing adhesive layer.

[0018] According to some embodiments of the present application, the insulating thermally conductive film includes a first film area and a second film area, the heating structure is arranged in the first film area, the heating structure and the first film area together constitute a heating area, the second film area surrounds the outer side of the first film area or the second film area is located on one side of the first film area or the second film area is spaced apart from the first film area.

[0019] According to some embodiments of the present application, convex areas and concave areas are formed on both sides of the heat conducting plate in the thickness direction, and the convex areas and the concave areas located on the same side in the thickness direction of the heat conducting plate are alternately arranged in the extension direction of the heat conducting plate, and the concave areas are used to connect or contact with the battery cells.

[0020] According to some embodiments of the present application, the heating power of the convex area is lower than the heating power of the concave area.

[0021] According to some embodiments of the present application, the heating film includes a heating zone, which is used to heat the battery core. The heating zone includes multiple sub-heating zones arranged along the extension direction of the heat conducting plate, and at least some of the sub-heating zones have different power densities.

[0022] According to some embodiments of the present application, the heating film includes a heating structure and an insulating heat-conductive film, the heating structure is connected to the side of the insulating heat-conductive film facing the heat-conductive plate, the heating structure and at least part of the insulating heat-conductive film constitute the heating zone, the heating structure includes a plurality of sub-heating structures, and the plurality of sub-heating structures are arranged in series or in parallel in sequence, and the number of the sub-heating structures is the same as the number of the sub-heating zones and corresponds one to one to each.

[0023] According to some embodiments of the present application, the heat conducting plate is a vapor chamber.

[0024] According to some embodiments of the present application, a heat exchange channel for the flow of heat exchange medium is formed in the heat conducting plate.

[0025] According to the battery assembly of the embodiment of the second aspect of the present application, it includes: multiple rows of battery cell rows, arranged along a first direction, each row of the battery cell rows includes multiple battery cells arranged along a second direction, and the second direction intersects with the first direction; according to the temperature adjustment component of the embodiment of the above-mentioned first aspect of the present application, the temperature adjustment component is provided between two adjacent battery cell rows, and the heating film is thermally connected or in thermal contact with the battery cells.

[0026] According to the battery assembly of the embodiment of the present application, by providing the above-mentioned temperature adjustment component, the heating area of ​​the temperature adjustment component is larger, so that the heating efficiency of the temperature adjustment component is higher, and by locating the temperature adjustment component between two adjacent rows of battery cells, the battery cells located on both sides of the temperature adjustment component in the thickness direction can be heated, thereby improving the heating efficiency of the battery cells.

[0027] According to some embodiments of the present application, the second direction is perpendicular to the first direction.

[0028] According to some embodiments of the present application, the heating film is in direct contact with the battery cell.

[0029] According to some embodiments of the present application, a ratio of a size of the heat conducting plate in the third direction to a size of the battery cell in the third direction is in a range of 50% to 80%, and the third direction, the second direction, and the first direction intersect with each other.

[0030] According to some embodiments of the present application, a plurality of temperature collection points are provided on a single row of battery cells, and the plurality of temperature collection points on a single row of battery cells are arranged at intervals along the second direction; the ratio of the number of temperature collection points in a single row of battery cells to the number of battery cells in a single row of battery cells is 1 / 4 to 1 / 2.

[0031] According to some embodiments of the present application, the heating film includes a heating zone, which is used to heat the battery cell. The heating zone includes a plurality of sub-heating zones arranged along the extension direction of the heat conduction plate, and the power density of at least some of the sub-heating zones is different. In the second direction, the power density of the sub-heating zone located in the middle of the battery cell row is greater than the power density of the sub-heating zone located at both ends of the battery cell row.

[0032] According to some embodiments of the present application, the multiple sub-heating zones include two first sub-heating zones, two second sub-heating zones, two third sub-heating zones and one fourth sub-heating zone. The fourth sub-heating zone is located in the middle of the battery cell row along the second direction. In the second direction, from the middle of the battery cell row to the two ends of the battery cell row, the fourth sub-heating zone, the third sub-heating zone, the second sub-heating zone and the first sub-heating zone are arranged in sequence and the power density increases in sequence.

[0033] According to some embodiments of the present application, in the second direction, the ratio of the size of the second sub-heating zone to the size of the first sub-heating zone is 1.8 to 2, the ratio of the size of the third sub-heating zone to the size of the first sub-heating zone is 1.7 to 1.9, and the ratio of the size of the fourth sub-heating zone to the size of the first sub-heating zone is 2.3 to 3.6.

[0034] A vehicle according to an embodiment of the third aspect of the present application includes: a battery assembly according to an embodiment of the above-mentioned second aspect of the present application.

[0035] According to the vehicle of the embodiment of the present application, the above-mentioned battery assembly is arranged, and a temperature regulating component is arranged between two adjacent battery cell rows of the battery assembly. The temperature regulating component includes a heat conducting plate and a heating film. The heating film is thermally connected or in thermal contact with the battery cells, and can transfer heat to the battery cells to heat the battery cells. In addition, heating films are provided on both sides of the heat conducting plate in the thickness direction, so that the temperature regulating component between the two battery cell rows can heat the two battery cell rows at the same time, thereby improving the heating efficiency of the battery cells.

[0036] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0038] FIG1 is a schematic diagram of the cooperation between a battery cell row and a temperature regulating component of a battery assembly according to some embodiments of the present application;

[0039] FIG2 is a partial enlarged view of point A in FIG1;

[0040] FIG3 is a cross-sectional view of FIG1 along line BB;

[0041] FIG4 is a partial enlarged view of point C in FIG3;

[0042] FIG5 is a diagram illustrating an arrangement of multiple temperature adjustment components of a battery assembly according to some embodiments of the present application;

[0043] FIG6 is a simplified diagram of a vehicle according to some embodiments of the present application.

[0044] Reference numerals:

[0045] 1000, vehicle;

[0046] 100. Battery assembly;

[0047] 10. Battery cell row; 11. Battery cell; 12. Battery cell contact surface; 13. Gap;

[0048] 20. Temperature regulating component; 21. Heat conducting plate; 22. Connecting area; 23. Concave area; 24. Heat exchange channel; 25. Convex area;

[0049] 30. Heating film; 31. Insulating thermally conductive film; 32. First film region; 33. Heating structure; 34. Second film region; 35. Thermally conductive adhesive layer; 36. Heating region; 37. Sub-heating region; 371. First sub-heating region; 372. Second sub-heating region; 373. Third sub-heating region; 374. Fourth sub-heating region;

[0050] 200. Car body. DETAILED DESCRIPTION

[0051] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0052] The temperature regulating component 20 according to an embodiment of the present application will be described below with reference to the accompanying drawings. The temperature regulating component 20 may be used to regulate the temperature of the battery cell 11 .

[0053] 1-2 , according to the temperature regulating component 20 of the first embodiment of the present application, the temperature regulating component 20 includes a heat conducting plate 21 and a heating film 30 . A heating film 30 is provided on both sides of the heat conducting plate 21 in the thickness direction. The heating film 30 is used to heat the battery cell 11 .

[0054] The heating film 30 of the temperature regulating component 20 can heat the battery cell 11. The temperature regulating component 20 can regulate the temperature of the battery cell 11, so that the battery cell 11 can work within its normal temperature range, which can improve the working efficiency and service life of the battery cell 11 to a certain extent.

[0055] Since heating films 30 are provided on both sides of the heat conducting plate 21 in the thickness direction, the temperature regulating component 20 can have a larger heating area, and both sides of the temperature regulating component 20 can heat the battery cell 11, thereby making the temperature regulating component 20 have a higher heating efficiency.

[0056] Furthermore, by placing the heating film 30 on the heat conducting plate 21, the heat from the heating film 30 can be dispersed through the heat conducting effect of the heat conducting plate 21 due to its excellent thermal conductivity. This can, to a certain extent, alleviate the phenomenon of localized overheating caused by localized heat concentration on the temperature regulating component 20. The heat conducting plate 21 can be a metal plate, such as an aluminum plate, a copper plate, or the like. The heat conducting plate 21 can be a heat spreader, which can better avoid the phenomenon of localized overheating caused by localized heat concentration on the temperature regulating component 20.

[0057] According to the temperature regulating component 20 of the embodiment of the present application, the temperature regulating component 2 includes a heat conducting plate 21 and a heating film 30. The heating film 30 is used to heat the battery cell 11, and heating films 30 are provided on both sides of the heat conducting plate 21 in the thickness direction, which can increase the heating area of ​​the temperature regulating component 20, thereby making the heating efficiency of the temperature regulating component 20 higher, thereby improving the heating efficiency of the battery cell 11.

[0058] 1-2 , according to some embodiments of the present application, the heating film 30 includes a heating zone 36, which is used to heat the battery cell 11. The projection of the heating zone 36 on the reference plane is a first projection, and the projection of the heat conducting plate 21 on the reference plane is a second projection, with the first projection located within the second projection. Thus, the entire heating zone 36 can be covered on the heat conducting plate 21, so that the heat generated by the heating zone 36 can be transferred to the heat conducting plate 21, so that the heat generated by the heating zone 36 can be fully utilized and dispersed on the heat conducting plate 21 through heat conduction.

[0059] According to some embodiments of the present application, the area ratio of the first projection to the second projection is 40% to 60%. For example, the area ratio of the first projection to the second projection can be 40%, 45%, 50%, 55%, 60%, etc., with the reference plane being a plane perpendicular to the thickness direction of the heat conducting plate 21. If the area ratio of the first projection to the second projection is less than 40%, the area of ​​the heating zone 36 will be smaller, resulting in a poor heating effect of the temperature regulating component 20. If the area ratio of the first projection to the second projection is greater than 60%, the area of ​​the heating zone 36 will be larger, resulting in higher production costs for the heating zone 36.

[0060] By setting the area ratio of the first projection to the second projection to 40% to 60%, the area of ​​the heating zone 36 of the heating film 30 is moderate, so that the temperature adjustment component 20 has higher heating efficiency and lower production cost.

[0061] 1-2 , according to some embodiments of the present application, the portion of the heat conducting plate 21 located on the outer peripheral side of the heating zone 36 is the connection zone 22. The connection zone 22 is provided with a glue layer 35, and the glue layer 35 is used to connect to the battery cell 11, and the temperature regulating component 20 is connected to the battery cell 11 through the glue layer 35. By providing the glue layer 35 in the connection zone 22, the temperature regulating component 20 can be connected to the battery cell 11 through the glue layer 35. The connection zone 22 is located on the outer peripheral side of the heating zone 36, so that the connection zone 22 has a larger connection area, which can make the connection between the temperature regulating component 20 and the battery cell 11 more stable. At the same time, since both sides of the temperature regulating component 20 are provided with glue layers 35 and are connected to two adjacent rows of battery cells 10, a larger glue area can be provided between the temperature regulating component 20 and the battery cell 11, further improving the overall structural stability of the battery assembly 100.

[0062] Optionally, the adhesive layer 35 may be a thermally conductive adhesive layer, so that the adhesive layer 35 has high thermal conductivity, thereby ensuring the heat transfer effect between the temperature adjustment component 20 and the battery core 11 .

[0063] 2 and 3-4 , according to some embodiments of the present application, the projection of the heat conducting plate 21 on a reference plane is a second projection, the projection of the connection area 22 on the reference plane is a third projection, and the area ratio of the third projection to the second projection is 40% to 60%. For example, the area ratio of the third projection to the second projection can be 40%, 45%, 50%, 55%, 60%, etc. The reference plane is a plane perpendicular to the thickness direction of the heat conducting plate 21. If the area ratio of the third projection to the second projection is less than 40%, the area of ​​the connection area 22 will be small, resulting in poor stability of the connection between the temperature control component 20 and the battery cell 11. If the area ratio of the third projection to the second projection is greater than 60%, the area of ​​the connection area 22 will be large, and accordingly, the area of ​​the heating area 36 will be small, resulting in low heating efficiency of the temperature control component 20.

[0064] By setting the area ratio of the third projection to the second projection to 40% to 60%, the area of ​​the heating zone 36 is moderate, thereby ensuring a more stable connection between the temperature adjustment component 20 and the battery cell 11 and ensuring a higher heating efficiency of the temperature adjustment component 20.

[0065] 2 and 3-4 , according to some embodiments of the present application, the heating film 30 includes a heating structure 33 and an insulating heat-conductive film 31. The heating structure 33 is connected to the side of the insulating heat-conductive film 31 facing the heat-conducting plate 21, and the heating structure 33 is located between the insulating heat-conductive film 31 and the heat-conducting plate 21. The heating film 30 includes the heating structure 33 and the insulating heat-conductive film 31, and the heating structure 33 is connected to the side of the insulating heat-conductive film 31 facing the heat-conducting plate 21. By providing the insulating heat-conductive film 31, the insulating heat-conductive film 31 can provide insulation and isolation, thereby preventing the heating structure 33 from contacting the battery cell 11 and causing a short circuit, thereby improving the safety of the battery assembly 100.

[0066] Optionally, the heating structure 33 may be a heating wire or a heating plate.

[0067] 2 and 3-4 , according to some embodiments of the present application, the heating film 30 includes a heating structure 33 and an insulating heat-conductive film 31. The side of the insulating heat-conductive film 31 facing the heat-conducting plate 21 has an adhesive layer. The heating structure 33 is connected to the side of the insulating heat-conductive film 31 facing the heat-conducting plate 21. The heating film 30 is connected to the heat-conducting plate 21 via the adhesive layer, and the heating structure 33 is located between the insulating heat-conductive film 31 and the heat-conducting plate 21. The heating film 30 includes a heating structure 33 and an insulating heat-conductive film 31. The heating film 30 is connected to the heat-conducting plate 21 via the adhesive layer. At the same time, the heating structure 33 connected to the side of the insulating heat-conductive film 31 facing the heat-conducting plate 21 can be fixed to the heat-conducting plate 21, which is relatively simple to assemble and has a relatively stable connection. In addition, by providing the insulating heat-conductive film 31, the insulating heat-conductive film 31 can play an insulating and isolating role, which can prevent the heating structure 33 from contacting the battery cell 11 and causing a short circuit, thereby improving the safety of the battery assembly 100.

[0068] 2 and 3-4 , according to some embodiments of the present application, the insulating thermally conductive film 31 includes a first film region 32 and a second film region 34. A heating structure 33 is provided in the first film region 32. The heating structure 33 and the first film region 32 together constitute a heating region 36. The second film region 34 surrounds the outer periphery of the first film region 32. By providing the first film region 32 and the second film region 34, the heating structure 33 and the first film region 32 together constitute the heating region 36. The second film region 34 surrounds the outer periphery of the first film region 32, or the second film region 34 is located to one side of the first film region 32, or the second film region 34 is spaced apart from the first film region 32.

[0069] The side of the insulating thermally conductive film 31 facing the heat conducting plate 21 has a backing layer, and the backing layer of the first film area 32 of the insulating thermally conductive film 31 facing the heat conducting plate 21 can connect the heating structure 33 to the insulating thermally conductive film 31, and the backing layer of the second film area 34 of the insulating thermally conductive film 31 facing the heat conducting plate 21 can fix the insulating thermally conductive film 31 and the heating structure 33 to the heat conducting plate 21, and the second film area 34 surrounds the outer periphery of the first film area 32, so that the heating film 30 and the heat conducting plate 21 have a larger connection area, thereby making the connection between the heating film 30 and the heat conducting plate 21 more stable.

[0070] In some embodiments of the present application, the portion of the heat conducting plate 21 located on the outer periphery of the heating zone 36 is the connection zone 22. The connection zone 22 is provided with an adhesive layer 35, and the temperature regulating component 20 is connected to the battery cell 11 via the adhesive layer 35. By providing the adhesive layer 35 in the connection zone 22, the temperature regulating component 20 can be connected to the battery cell 11 via the adhesive layer 35. In addition, the insulating heat conducting film 31 includes a first film region 32 and a second film region 34. The heating structure 33 is provided in the first film region 32. The heating structure 33 and the first film region 32 together constitute the heating zone 36. If the second film region 34 covers the entire connection zone 22, the adhesive layer 35 can be provided on the side of the second film region 34 facing away from the heat conducting plate 21. If the second film region 34 covers a portion of the connection zone 22, the adhesive layer 35 can be provided on the side of the second film region 34 facing away from the heat conducting plate 21 and on the area of ​​the connection zone 22 not covered by the second film region 34.

[0071] 1-2 , according to some embodiments of the present application, convex areas 25 and concave areas 23 are formed on both sides of the heat conducting plate 21 in the thickness direction, and the convex areas 25 and concave areas 23 on the same side of the heat conducting plate 21 in the thickness direction are alternately arranged in the second direction, the concave areas 23 are used to connect or contact the battery cells 11, and the convex areas 25 are opposite to the gaps 13 between two adjacent battery cells 11. The heating film 30 can be adapted to the shape of the heat conducting plate 21, and the shape of the concave areas 23 can be adapted to the outer shape of the battery cells 11, with part of the battery cells 11 being accommodated in the concave areas 23. The battery cells 11 of the two rows of battery cells 10 on both sides of the heat conducting plate 21 in the thickness direction can be connected to the concave areas 23, and the heating films 30 are provided on both sides of the heat conducting plate 21 in the thickness direction, so that the temperature regulating component 20 has a higher heating efficiency. In addition, the battery cell 11 is connected to the recessed area 23. For example, the heating film 30 is adapted to the shape of the heat conducting plate 21. The shape of the recessed area 23 is adapted to the outer shape of the battery cell 11. Part of the battery cell 11 is accommodated in the recessed area 23, which can make full use of the space and make the overall structure of the battery assembly 100 more compact.

[0072] According to some embodiments of the present application, the heating power of the convex area 25 is lower than the heating power of the concave area 23. By making the heating power of the concave area 23, which is connected to or in contact with the battery cell 11, higher than the heating power of the convex area 25, the large amount of heat generated in the concave area 23 can be quickly transferred to the battery cell 11, thereby improving the heating efficiency of the battery cell 11. In addition, the heating power of the convex area 25 is relatively low. Since the convex area 25 is not connected to or in contact with the battery cell 11, it can achieve improved heating efficiency while reducing energy consumption.

[0073] 1 and 5 , according to some embodiments of the present application, the heating film 30 includes a heating zone 36, which is used to heat the battery cell 11. The heating zone 36 includes a plurality of sub-heating zones 37 arranged along the extension direction of the heat conducting plate 21. At least some of the sub-heating zones 37 have different power densities. The power densities of some of the sub-heating zones 37 may be different, or the power densities of all the sub-heating zones 37 may be different. By configuring the heating zone 36 to include sub-heating zones 37 with different power densities, the sub-heating zones 37 with different power densities in the heating zone 36 can be heated according to needs, thereby saving energy and reducing energy consumption while meeting the different heating needs of the battery cells 11.

[0074] For example, the heat dissipation rates of the battery cells 11 at different positions in the battery cell row 10 are different. For example, the heat dissipation rate of the battery cells 11 at both ends of the battery cell row 10 is higher, while the heat dissipation rate of the battery cells 11 located in the middle of the battery cell row 10 is lower. By providing the heating zone 36 with multiple sub-heating zones 37 along the second direction, and with at least some of the sub-heating zones 37 having different power densities, the heat dissipation rates of the battery cells 11 at different positions can be balanced, so that the battery cells 11 in the battery cell row 10 form a relatively uniform temperature rise rate, thereby enabling the heating zone 36 to more evenly heat the battery cells 11 in the battery cell row 10.

[0075] Furthermore, by providing multiple sub-heating zones 37, if a heating zone 36 is partially damaged or fails, it is easier to replace or repair the heating zone 36, thereby reducing repair costs. For example, if a heating zone 36 is partially damaged or fails, only the sub-heating zone 37 corresponding to the damaged or failed portion can be replaced, without having to replace or repair the entire heating zone 36.

[0076] 1 and 5 , according to some embodiments of the present application, the heating film 30 includes a heating structure 33 and an insulating heat-conductive film 31. The heating structure 33 is connected to the side of the insulating heat-conductive film 31 facing the heat-conducting plate 21. The heating structure 33 and at least a portion of the insulating heat-conductive film 31 form a heating area 37. The heating film 30 includes the heating structure 33 and the insulating heat-conductive film 31. The heating film 30 can be connected to the heat-conducting plate 21 via an adhesive layer. At the same time, the heating structure 33 connected to the side of the insulating heat-conductive film 31 facing the heat-conducting plate 21 can be fixed to the heat-conducting plate 21, which makes assembly relatively simple and the connection relatively stable.

[0077] The heating structure 33 includes multiple sub-heating structures, which are arranged in series or in parallel. The number of sub-heating structures is the same as the number of sub-heating zones 37, and they correspond one-to-one. The multiple sub-heating structures are arranged in series or in parallel, which simplifies the connection and facilitates dividing the heating zone 36 into multiple sub-heating zones 37 with different power densities.

[0078] For example, if the heating structure 33 is a heating wire, the resistance of the heating wire can be adjusted by adjusting the cross-sectional area of ​​the heating wire, thereby enabling different sub-heating zones 37 corresponding to different heating wires to have different power densities. If multiple heating wires are arranged in series, the larger the cross-sectional area of ​​the heating wire, the smaller the resistance of the heating wire, and the lower the power density of the heating zone 36 corresponding to the heating wire. If multiple heating wires are arranged in parallel, the larger the cross-sectional area of ​​the heating wire, the smaller the resistance of the heating wire, and the higher the power density of the heating zone 36 corresponding to the heating wire.

[0079] 1-2 , according to some embodiments of the present application, the heat conducting plate 21 is a heat spreader. The heat spreader has good thermal conductivity and relatively uniform heat flux, and can transfer and balance the heat of the heating film 30, so that the heating effect of the temperature regulating component 20 is relatively uniform. For example, when there is an area of ​​the heating film 30 that is not thermally connected or in thermal contact with the battery cell 11, the heat generated by the heating film 30 in this area will be transferred through the heat conducting plate 21 to the corresponding area of ​​the heating film 30 that is thermally connected or in thermal contact with the battery cell 11, thereby avoiding dry burning of the heating film 30 and improving the heating efficiency and heating effect of the temperature regulating component 20.

[0080] 3-4 , according to some embodiments of the present application, a heat exchange channel 24 for the flow of a heat exchange medium is formed within the heat conducting plate 21. The heat exchange medium, such as a refrigerant, within the heat exchange channel 24 within the heat conducting plate 21 can exchange heat with the battery cells 11 through the heat conducting plate 21, thereby achieving the temperature regulation function of the temperature regulating component 20, such as heat dissipation.

[0081] When the temperature of the battery cell 11 in the battery assembly 100 is low and needs to be heated, the heating area 36 of the heating film 30 is thermally connected or in thermal contact with the battery cell 11 and directly heats the battery cell 11, thereby realizing the heating function of the temperature regulating component 20. At this time, no heat exchange medium flows in the heat exchange channel 24 in the heat conducting plate 21. When the temperature of the battery cell 11 in the battery assembly 100 is high and needs to be dissipated, the heat exchange medium flows through the heat exchange channel 24 of the heat conducting plate 21 and exchanges heat with the battery cell 11, thereby realizing the heat dissipation function of the temperature regulating component 20. At this time, the heating film 30 does not work. The temperature regulating component 20 can both heat and dissipate heat for the battery cell 11, thereby ensuring that the battery cell 11 operates within its normal temperature range and improving the working efficiency and service life of the battery cell 11.

[0082] The battery assembly 100 according to an embodiment of the present application will be described below with reference to the accompanying drawings. In the embodiment of the present application, the battery assembly 100 may include a battery module or a battery pack.

[0083] 1-2 , according to the battery assembly 100 of the embodiment of the second aspect of the present application, the battery assembly 100 includes multiple rows of battery cell rows 10, which are arranged along a first direction (refer to the e1 direction in the accompanying drawings), and each row of battery cell rows 10 includes multiple battery cells 11 arranged along a second direction (refer to the e2 direction in the accompanying drawings), and the second direction intersects with the first direction, for example, the second direction is perpendicular to the first direction. Multiple battery cells 11 are arranged along the second direction to form battery cell rows 10, and multiple battery cell rows 10 are arranged along the first direction, so that the multiple battery cell rows 10 are arranged more compactly, which is conducive to improving the energy density of the battery pack. Among them, the first direction can be consistent with the thickness direction of the heat conducting plate 21, and the second direction can be consistent with the extension direction of the heat conducting plate 21.

[0084] It should be noted that the term “plurality” in this application refers to two or more.

[0085] The battery assembly 100 also includes a temperature regulating component 20, which can be the temperature regulating component 20 according to the embodiment of the first aspect above. A temperature regulating component 20 is provided between two adjacent battery cell rows 10, and the temperature regulating component 20 includes a heat conducting plate 21 and a heating film 30. A heating film 30 is provided on both sides of the heat conducting plate 21 in the thickness direction, and the heating film 30 is thermally connected or in thermal contact with the battery cell 11. For example, the heating film 30 includes a heating area 36 having a heating structure 33, and the heating area 36 is thermally connected or in thermal contact with the battery cell 11. By providing the temperature regulating component 20, the temperature regulating component 20 can regulate the temperature of the battery cell 11, enable the battery cell 11 to operate within its normal temperature range, and to a certain extent improve the working efficiency and service life of the battery cell 11.

[0086] The temperature regulating component 20 includes a heat conducting plate 21 and a heating film 30. Heating films 30 are provided on both sides of the heat conducting plate 21 in the thickness direction. The heating film 30 is thermally connected or in thermal contact with the battery cell 11. For example, the heating film 30 includes a heating area 36 having a heating structure 33. The heating area 36 is thermally connected or in thermal contact with the battery cell 11, and can transfer heat to the battery cell 11 to heat the battery cell 11. Heating films 30 are provided on both sides of the heat conducting plate 21 in the thickness direction, so that the temperature regulating component 20 between the two battery cell rows 10 can heat the two battery cell rows 10 at the same time, so that the temperature regulating component 20 has a higher heating efficiency.

[0087] Optionally, the heating film 30 or the heating area 36 can be in thermal contact with the battery cell 11, and the heating film 30 or the heating area 36 can be in direct contact with the battery cell 11 to form thermal contact, so that heat can be transferred, thereby controlling the temperature of the battery cell 11 within the normal operating temperature.

[0088] Optionally, the thermal connection between the heating film 30 or the heating area 36 and the battery cell 11 may include a thermally conductive layer disposed between the heating film 30 or the heating area 36 and the battery cell 11, and the thermal connection is achieved through the thermally conductive layer. For example, the thermally conductive layer may be a thermally conductive adhesive layer, thermally conductive silicone grease, or a thermally conductive pad to ensure effective heat transfer between the heating film 30 or the heating area 36 and the battery cell 11.

[0089] Furthermore, by placing the heating film 30 on the heat conducting plate 21, the heat from the heating film 30 can be conducted through the heat conducting plate 21 due to its excellent thermal conductivity, thereby preventing localized overheating caused by localized heat concentration on the temperature regulating component 20, thereby preventing dry heating of the heating film 30. The heat conducting plate 21 can be a metal plate, such as an aluminum plate, a copper plate, or the like. The heat conducting plate 21 can be a heat spreader, which can further prevent localized overheating caused by localized heat concentration on the temperature regulating component 20.

[0090] According to the battery assembly 100 of the embodiment of the present application, by providing the above-mentioned temperature regulating component 20, the heating area of ​​the temperature regulating component 20 is larger, so that the heating efficiency of the temperature regulating component 20 is higher. A temperature regulating component 20 is provided between two adjacent battery cell rows 10 of the battery assembly 100. The temperature regulating component 20 includes a heat conducting plate 21 and a heating film 30. The heating film 30 is thermally connected or in thermal contact with the battery cell 11, and can transfer heat to the battery cell 11 to heat the battery cell 11. The heating film 30 is provided on both sides of the heat conducting plate 21 in the thickness direction, so that the temperature regulating component 20 between the two battery cell rows 10 can heat the two battery cell rows 10 at the same time, thereby improving the heating efficiency of the battery cell 11.

[0091] 1-2 , according to some embodiments of the present application, the heating film 30 is in direct contact with the battery cell 11. This direct contact between the heating film 30 and the battery cell 11 forms a thermally conductive contact between the heating film 30 and the battery cell 11. The direct thermally conductive contact between the heating film 30 of the temperature adjustment component 20 and the battery cell 11 enables direct heat exchange between the heating film 30 and the battery cell 11 through direct contact, reducing heat losses during the heat exchange process. This allows the temperature adjustment component 20 to have higher heating efficiency, enabling it to quickly raise the temperature of the battery cell 11, thereby improving the performance of the battery pack.

[0092] For example, the heating film 30 includes a heating area 36, ​​which is in direct contact with the battery cell 11. This direct contact between the heating area 36 of the heating film 30 and the battery cell 11 creates thermal contact between the heating area 36 and the battery cell 11. The direct thermal contact between the heating area 36 of the temperature adjustment component 20 and the battery cell 11 allows for direct heat exchange between the heating area 36 and the battery cell 11, reducing heat loss during the heat exchange process. This allows the temperature adjustment component 20 to have higher heating efficiency, enabling it to quickly raise the temperature of the battery cell 11, thereby improving battery pack performance.

[0093] Referring to Figures 1 and 2 , according to some embodiments of the present application, the heating film 30 is in direct contact with the battery cell 11, and the heat conducting plate 21 is a vapor chamber. This direct contact between the heating film 30 and the battery cell 11 enables heating of the battery cell 11 with high heating efficiency. Furthermore, the vapor chamber has good thermal conductivity and a relatively uniform heat flux, which can transfer and balance the heat of the heating film 30, resulting in a more uniform heating effect for the temperature regulating component 20.

[0094] 1-2 , according to some embodiments of the present application, the surfaces of the battery cell 11 on opposite sides along the first direction include a battery cell contact surface 12, and the battery cell contact surface 12 refers to the surface of the battery cell 11 that is in direct or indirect contact with the temperature adjustment component 20, and the heating film 30 or the heating area 36 is thermally connected or in thermal contact with the battery cell contact surface 12. The area of ​​the surfaces of the battery cell 11 on opposite sides along the first direction is larger, which can increase the area of ​​heat transfer between the temperature adjustment component 20 and the battery cell 11, thereby improving the heat dissipation efficiency of the temperature adjustment component 20.

[0095] The ratio of the dimension S (see FIG3 ) of the heat conducting plate 21 in the third direction (see direction e3 in the drawing) to the dimension L (see FIG3 ) of the battery cell 11 in the third direction is in the range of 50% to 80%. For example, the ratio of the dimension S of the heat conducting plate 21 in the third direction to the dimension L of the battery cell 11 in the third direction can be 50%, 60%, 70%, 80%, etc. The third direction, the second direction, and the first direction intersect with each other, for example, the third direction, the second direction, and the first direction are perpendicular to each other. If the ratio of the dimension S of the heat conducting plate 21 in the third direction to the dimension L of the battery cell 11 in the third direction is less than 50%, the area of ​​the heat conducting plate 21 will be small, resulting in poor heating effect of the temperature adjustment component 20. If the ratio of the dimension S of the heat conducting plate 21 in the third direction to the dimension L of the battery cell 11 in the third direction is greater than 80%, the area of ​​the heat conducting plate 21 will be large, resulting in higher cost of the stabilization adjustment component and a larger space occupied by the temperature adjustment component 20.

[0096] By setting the ratio of the size of the heat conducting plate 21 in the third direction to the size of the battery cell 11 in the third direction in the range of 50% to 80%, the area of ​​the temperature regulating component 20 is made moderate, the temperature regulating component 20 can have a higher heating efficiency, and can make full use of the space, making the structure of the battery assembly 100 more compact.

[0097] 1-2 , according to some embodiments of the present application, a single row of battery cells 10 is provided with multiple temperature collection points, and the multiple temperature collection points on a single battery cell row 10 are arranged at intervals along the second direction. By providing multiple temperature collection points at intervals along the second direction on the battery cell row 10, the temperature changes of the battery cells 11 in the battery cell row 10 can be obtained more accurately and comprehensively, thereby facilitating adjustment of the temperature adjustment component 20 to ensure that the battery cells 11 in the battery cell row 10 can operate at a normal operating temperature, thereby reducing or avoiding the occurrence of uneven temperatures of the battery cells 11 in the battery cell row 10.

[0098] The ratio of the number of temperature collection points of a single-row battery cell row 10 to the number of battery cells 11 in the single-row battery cell row 10 is 1 / 4 to 1 / 2. For example, the ratio of the number of temperature collection points of a single-row battery cell row 10 to the number of battery cells 11 in the single-row battery cell row 10 can be 1 / 4, 5 / 16, 7 / 16, 1 / 2, etc. If the ratio of the number of temperature collection points of a single-row battery cell row 10 to the number of battery cells 11 in the single-row battery cell row 10 is less than 1 / 4, the number of temperature collection points will be small, and the temperature change of the battery cell row 10 cannot be accurately obtained; if the ratio of the number of temperature collection points of a single-row battery cell row 10 to the number of battery cells 11 in the single-row battery cell row 10 is greater than 1 / 2, the number of temperature collection points will be large, which will increase the production cost of the battery cell row 10.

[0099] By setting the ratio of the number of temperature collection points of a single-row battery cell row 10 to the number of battery cells 11 in the single-row battery cell row 10 to 1 / 4 to 1 / 2, the temperature changes of the battery cells 11 in the battery cell row 10 can be obtained more accurately and comprehensively. At the same time, it can avoid the situation where the number of temperature collection points on a single battery cell row 10 is too large, which leads to an increase in the production cost of the single-row battery cell row 10.

[0100] 1 and 5 , according to some embodiments of the present application, the heating film 30 includes a heating zone 36, and the heating zone 36 includes a plurality of sub-heating zones 37 arranged along the second direction. The power density of at least some of the sub-heating zones 37 is different. The power density of some of the sub-heating zones 37 may be different, or the power density of all of the sub-heating zones 37 may be different. The heat dissipation rates of the battery cells 11 located at different positions in the battery cell row 10 are different. For example, the heat dissipation rate of the battery cells 11 located at both ends of the battery cell row 10 is higher, and the heat dissipation rate of the battery cells 11 located in the middle of the battery cell row 10 is lower. By arranging a plurality of sub-heating zones 37 along the second direction in the heating zone 36, and having different power densities of at least some of the sub-heating zones 37, the heat dissipation rates of the battery cells 11 at different positions can be balanced, so that the battery cells 11 in the battery cell row 10 form a relatively uniform temperature rise rate, so that the heating zone 36 can heat the battery cells 11 of the battery cell row 10 more evenly.

[0101] Furthermore, by providing multiple sub-heating zones 37, if a heating zone 36 is partially damaged or fails, it is easier to replace or repair the heating zone 36, thereby reducing repair costs. For example, if a heating zone 36 is partially damaged or fails, only the sub-heating zone 37 corresponding to the damaged or failed portion can be replaced, without having to replace or repair the entire heating zone 36.

[0102] 1 and 5 , according to some embodiments of the present application, in the second direction, the power density of the sub-heating zone 37 located in the middle of the battery cell row 10 is greater than the power density of the sub-heating zones 37 located at both ends of the battery cell row 10. The battery cells 11 located at both ends of the battery cell row 10 have fewer battery cells 11 surrounding them, and the heat dissipation rate of the battery cells 11 is faster; the battery cells 11 located in the middle of the battery cell row 10 have more battery cells 11 surrounding them, and the heat dissipation rate of the battery cells 11 is slower. By setting the power density of the sub-heating zone 37 located in the middle of the battery cell row 10 to be greater than the power density of the sub-heating zones 37 located at both ends of the battery cell row 10, the heat dissipation rates of the battery cells 11 at different positions can be balanced, so that the battery cells 11 in the middle of the battery cell row 10 and the battery cells 11 at both ends of the battery cell row 10 form a relatively uniform temperature rise rate, thereby reducing the temperature difference between the battery cells 11 at different positions of the battery cell row 10.

[0103] 1 and 5 , according to some embodiments of the present application, the plurality of sub-heating zones 37 include two first sub-heating zones 371 , two second sub-heating zones 372 , two third sub-heating zones 373 and one fourth sub-heating zone 374 . The fourth sub-heating zone 374 is located in the middle of the battery cell row 10 along the second direction. In the second direction, from the middle of the battery cell row 10 to the two ends of the battery cell row 10 , the fourth sub-heating zone 374 , the third sub-heating zone 373 , the second sub-heating zone 372 and the first sub-heating zone 371 are arranged in sequence and the power density increases in sequence. In the direction from the middle of the battery cell row 10 to the two ends of the battery cell row 10, the heat dissipation rate of the battery cells 11 in the battery cell row 10 gradually increases. By setting two first sub-heating zones 371, two second sub-heating zones 372, two third sub-heating zones 373 and one fourth sub-heating zone 374, and in the direction from the middle of the battery cell row 10 to the two ends of the battery cell row 10, the fourth sub-heating zone 374, the third sub-heating zone 373, the second sub-heating zone 372 and the first sub-heating zone 371 are arranged in sequence and the power density increases in sequence, so that the heating zone 36 can adapt to the battery cells 11 with different heat dissipation rates in the battery cell row 10, so that the heating zone 36 can heat the battery cells 11 of the battery cell row 10 more evenly.

[0104] 1 and 5 , according to some embodiments of the present application, in the second direction, the ratio of the size of the second sub-heating zone 372 to the size of the first sub-heating zone 371 is 1.8 to 2, the ratio of the size of the third sub-heating zone 373 to the size of the first sub-heating zone 371 is 1.7 to 1.9, and the ratio of the size of the fourth sub-heating zone 374 to the size of the first sub-heating zone 371 is 2.3 to 3.6. In the direction from the middle of the battery cell row 10 to the two ends of the battery cell row 10, the number of battery cells 11 in the middle that dissipate heat more slowly is larger and occupies the largest space, while the number of battery cells 11 at the two ends that dissipate heat more quickly is smaller and occupies less space. The battery cells 11 in the middle section from the middle to the two ends can be divided into two areas according to the heat dissipation speed of the battery cells 11, and the number of battery cells 11 in each area is greater than the number of battery cells 11 at the two ends that dissipate heat more quickly and less than the number of battery cells 11 in the middle that dissipate heat more slowly, and occupies a larger space.

[0105] By setting the size ratio of the second sub-heating zone 372 to the size ratio of the first sub-heating zone 371 to 1.8~2, the size ratio of the third sub-heating zone 373 to the size ratio of the first sub-heating zone 371 to 1.7~1.9, and the size ratio of the fourth sub-heating zone 374 to the size ratio of the first sub-heating zone 371 to 2.3~3.6, the heating zone 36 is divided more reasonably, so that the heating zone 36 can adapt to the battery cells 11 with different heat dissipation speeds in the battery cell row 10, so that the heating zone 36 can heat the battery cells 11 of the battery cell row 10 more evenly.

[0106] 1 and 5 , according to some embodiments of the present application, the heating film 30 includes a heating structure 33 and an insulating thermally conductive film 31. The heating structure 33 is connected to the side of the insulating thermally conductive film 31 facing the heat transfer plate 21. The heating film 30 includes the heating structure 33 and the insulating thermally conductive film 31. The heating structure 33 and at least a portion of the insulating thermally conductive film 31 form a heating area 36. The heating film 30 is connected to the heat transfer plate 21 via an adhesive layer. Simultaneously, the heating structure 33 connected to the side of the insulating thermally conductive film 31 facing the heat transfer plate 21 can be fixed to the heat transfer plate 21, making assembly relatively simple and the connection relatively stable.

[0107] The heating structure 33 includes multiple sub-heating structures, which are arranged in series or in parallel. The number of sub-heating structures is the same as the number of sub-heating zones 37, and they correspond one-to-one. The multiple sub-heating structures are arranged in series or in parallel, which simplifies the connection and facilitates dividing the heating zone 36 into multiple sub-heating zones 37 with different power densities.

[0108] For example, if the heating structure 33 is a heating wire, the resistance of the heating wire can be adjusted by adjusting the cross-sectional area of ​​the heating wire, thereby enabling different sub-heating zones 37 corresponding to different heating wires to have different power densities. If multiple heating wires are arranged in series, the larger the cross-sectional area of ​​the heating wire, the smaller the resistance of the heating wire, and the lower the power density of the heating zone 36 corresponding to the heating wire. If multiple heating wires are arranged in parallel, the larger the cross-sectional area of ​​the heating wire, the smaller the resistance of the heating wire, and the higher the power density of the heating zone 36 corresponding to the heating wire.

[0109] 6 , a vehicle 1000 according to an embodiment of the third aspect of the present application includes a battery assembly 100 according to an embodiment of the second aspect of the present application. For example, the vehicle 1000 may be an electric vehicle.

[0110] In some embodiments, the battery assembly 100 may be disposed at the bottom of the vehicle body 200 ; in other embodiments, the battery assembly 100 may be disposed inside the vehicle body 200 .

[0111] According to the vehicle 1000 of the embodiment of the present application, by setting the above-mentioned battery assembly 100, a temperature adjustment component 20 is provided between two adjacent battery cell rows 10 of the battery assembly 100, and the temperature adjustment component 20 includes a heat conducting plate 21 and a heating film 30. The heating film 30 is thermally connected or in thermal contact with the battery cell 11, and can transfer heat to the battery cell 11 to heat the battery cell 11. The heating film 30 is provided on both sides of the heat conducting plate 21 in the thickness direction, so that the temperature adjustment component 20 between the two battery cell rows 10 can heat the two battery cell rows 10 at the same time, thereby improving the heating efficiency of the battery cell 11.

[0112] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0113] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A temperature regulating component (20), wherein: It comprises a heat conducting plate (21) and a heating film (30), wherein the heating films (30) are provided on both sides of the heat conducting plate (21) in a thickness direction, and the heating films (30) are used to heat the battery core (11).

2. The temperature regulating component (20) according to claim 1, wherein The heating film (30) includes a heating area (36), the heating area (36) is used to heat the battery core (11), the projection of the heating area (36) on a reference plane is a first projection, the projection of the heat conducting plate (21) on the reference plane is a second projection, the first projection is located within the second projection, and the reference plane is a plane perpendicular to the thickness direction of the heat conducting plate (21).

3. The temperature adjustment component (20) according to claim 2, wherein: The area ratio of the first projection to the second projection is 40% to 60%.

4. The temperature adjustment component (20) according to claim 2, wherein The portion of the heat conducting plate (21) located on the outer peripheral side of the heating area (36) is a connection area (22). The connection area (22) is provided with a glue layer (35). The glue layer (35) is used to connect with the battery core (11).

5. The temperature adjustment component (20) according to claim 4, wherein The adhesive layer (35) is a heat-conducting adhesive layer.

6. The temperature adjustment component (20) according to claim 4, wherein: The projection of the connection area (22) on the reference plane is a third projection, and the area ratio of the third projection to the second projection is 40% to 60%.

7. The temperature regulating component (20) according to any one of claims 1 to 6, wherein: The heating film (30) comprises a heating structure (33) and an insulating heat-conducting film (31), wherein the heating structure (33) is connected to a side of the insulating heat-conducting film (31) facing the heat-conducting plate (21).

8. The temperature adjustment component (20) according to claim 7, wherein: The insulating heat-conducting film (31) has a backing layer on the side facing the heat-conducting plate (21), and the heating film (30) is connected to the heat-conducting plate (21) via the backing layer.

9. The temperature adjustment component (20) according to claim 7, wherein: The insulating heat-conductive film (31) includes a first film area (32) and a second film area (34); the heating structure (33) is provided in the first film area (32); the heating structure (33) and the first film area (32) together constitute a heating area (36); the second film area (34) surrounds the outer peripheral side of the first film area (32) or the second film area (34) is located on one side of the first film area (32) or the second film area (34) is spaced apart from the first film area (32).

10. The temperature adjustment component (20) according to any one of claims 1 to 9, wherein: The heat conducting plate (21) is formed with convex areas (25) and concave areas (23) on both sides in the thickness direction, and the convex areas (25) and the concave areas (23) located on the same side in the thickness direction of the heat conducting plate (21) are alternately arranged in the extension direction of the heat conducting plate (21), and the concave areas (23) are used to connect or contact with the battery core (11).

11. The temperature adjustment component (20) according to claim 10, wherein: The heating power of the convex area (25) is lower than the heating power of the concave area (23).

12. The temperature adjustment component (20) according to claim 1, wherein The heating film (30) includes a heating area (36), the heating area (36) is used to heat the battery core (11), the heating area (36) includes a plurality of sub-heating areas (37) arranged along the extension direction of the heat conducting plate (21), and at least some of the sub-heating areas (37) have different power densities.

13. The temperature adjustment component (20) according to claim 12, wherein: The heating film (30) includes a heating structure (33) and an insulating heat-conducting film (31), wherein the heating structure (33) is connected to the side of the insulating heat-conducting film (31) facing the heat-conducting plate (21), and the heating structure (33) and at least a portion of the insulating heat-conducting film (31) constitute the heating zone (36), and the heating structure (33) includes a plurality of sub-heating structures, wherein the plurality of sub-heating structures are sequentially arranged in series or in parallel, and the number of the sub-heating structures is the same as the number of the sub-heating zones (37) and corresponds one to one to each other.

14. The temperature regulating component (20) according to any one of claims 1 to 13, wherein: The heat conducting plate (21) is a heat soaking plate.

15. The temperature regulating component (20) according to any one of claims 1 to 14, wherein: A heat exchange flow channel (24) for the flow of heat exchange medium is formed in the heat conduction plate (21).

16. A battery assembly (100), wherein: include: A plurality of rows of battery cells (10) are arranged along a first direction, each row of the battery cells (10) comprising a plurality of battery cells (11) arranged along a second direction, the second direction intersecting the first direction; According to the temperature regulating component (20) according to any one of claims 1 to 15, the temperature regulating component (20) is provided between two adjacent battery core rows (10), and the heating film (30) is thermally connected or in thermal contact with the battery core (11).

17. The battery assembly (100) according to claim 16, wherein: The second direction is perpendicular to the first direction.

18. The battery assembly (100) according to claim 16, wherein: The heating film (30) is in direct contact with the battery core (11).

19. The battery assembly (100) according to claim 16, wherein: The ratio of the size of the heat conducting plate (21) in the third direction to the size of the battery core (11) in the third direction is in the range of 50% to 80%, and the third direction, the second direction and the first direction intersect with each other.

20. The battery assembly (100) according to any one of claims 16 to 19, wherein: A plurality of temperature collection points are provided on a single row of battery core rows (10), and the plurality of temperature collection points on a single battery core row (10) are arranged at intervals along the second direction; and the ratio of the number of temperature collection points on a single row of battery core rows (10) to the number of battery cores (11) on a single row of battery core rows (10) is 1 / 4 to 1 / 2.

21. The battery assembly (100) according to any one of claims 16 to 20, wherein: The heating film (30) includes a heating area (36), and the heating area (36) is used to heat the battery cell (11). The heating area (36) includes a plurality of sub-heating areas (37) arranged along the extension direction of the heat conducting plate (21). The power density of at least some of the sub-heating areas (37) is different. In the second direction, the power density of the sub-heating area (37) located in the middle of the battery cell row (10) is greater than the power density of the sub-heating areas (37) located at both ends of the battery cell row (10).

22. The battery assembly (100) according to claim 21, wherein: The plurality of sub-heating zones (37) include two first sub-heating zones (371), two second sub-heating zones (372), two third sub-heating zones (373) and one fourth sub-heating zone (374). The fourth sub-heating zone (374) is located in the middle of the battery cell row (10) along the second direction. In the second direction, from the middle of the battery cell row (10) to the two ends of the battery cell row (10), the fourth sub-heating zone (374), the third sub-heating zone (373), the second sub-heating zone (372) and the first sub-heating zone (371) are arranged in sequence, and the power density increases in sequence.

23. The battery assembly (100) according to claim 22, wherein: In the second direction, the ratio of the size of the second sub-heating zone (372) to the size of the first sub-heating zone (371) is 1.8 to 2, the ratio of the size of the third sub-heating zone (373) to the size of the first sub-heating zone (371) is 1.7 to 1.9, and the ratio of the size of the fourth sub-heating zone (374) to the size of the first sub-heating zone (371) is 2.3 to 3.

6.

24. A vehicle (1000), wherein: include: The battery assembly (100) according to any one of claims 16 to 23.

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