Heat dissipation structure and battery module

Abstract

The utility model provides a heat dissipation structure and a battery module, the heat dissipation structure comprises a plurality of cooling plates which are sequentially distributed at intervals along a first direction, a mounting space for mounting a battery cell is formed between every two adjacent cooling plates, and a cooling channel is formed in each cooling plate; a flow adjusting valve is arranged at an inlet or an outlet of the cooling channel of at least one cooling plate, and the flow adjusting valve is used for adjusting the flow of the cooling medium in the corresponding cooling channel. The flow regulating valve for regulating the flow of the cooling medium is arranged at the inlet or the outlet of the cooling channel of at least one cooling plate, and the flow of the cooling medium in the cooling channel of the cooling plate can be regulated through the flow regulating valve, so that the cooling efficiency of the cooling medium on the cooling plate is regulated; and the cooling speed of the cooling plate on the battery cells on one side or two sides of the cooling plate is adjusted, so that one or more battery cells with higher temperature in the plurality of battery cells can be quickly cooled, and the temperature difference of the plurality of battery cells is smaller.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a heat dissipation structure and a battery module. Background Art

[0002] In the related art, the battery module usually includes a heat dissipation structure for cooling and dissipating the heat of multiple battery cells to prevent the temperature of the battery cells from being too high and affecting the performance of the battery cells. Among them, the temperature of each battery cell of the battery module is usually different, but the heat dissipation efficiency of the heat dissipation structure for each battery cell is basically the same, which leads to a large difference in the temperature of each battery cell of the battery module, poor temperature consistency, and easily affects the performance of the battery module. Utility Model Content

[0003] The embodiments of the utility model provide a heat dissipation structure and a battery module, which can improve the technical problem that the temperatures of the battery cells of the battery module vary greatly, the temperature consistency is poor, and the performance of the battery module is easily affected.

[0004] In a first aspect, an embodiment of the utility model provides a heat dissipation structure, comprising a plurality of cooling plates sequentially spaced and distributed along a first direction, an installation space for installing a battery cell is formed between two adjacent cooling plates, and a cooling channel is provided in the cooling plate;

[0005] Wherein, a flow regulating valve is provided at the inlet or outlet of the cooling channel of at least one of the cooling plates, and the flow regulating valve is used to regulate the flow of the cooling medium in the corresponding cooling channel.

[0006] In one embodiment, the flow regulating valve is located at an edge of the cooling plate.

[0007] In one embodiment, a mounting cavity is formed in the cooling plate, and the flow regulating valve is installed in the mounting cavity.

[0008] In one embodiment, the installation cavity of the cooling plate passes through the cooling plate along the first direction.

[0009] In one embodiment, the cooling plate includes two side plates, and the two side plates are distributed on both sides of the installation cavity along the first direction.

[0010] In one embodiment, the flow regulating valve is provided at the inlet or outlet of the cooling channel of each cooling plate.

[0011] In one embodiment, the heat dissipation structure further includes a connecting plate, one side edge of the plurality of cooling plates along the second direction are all connected to the connecting plate, the second direction is arranged at an angle to the first direction, a flow channel is opened in the connecting plate, and an inlet and an outlet of the cooling channel of the cooling plate are respectively connected to the flow channel;

[0012] Wherein, the flow regulating valve is arranged on the edge of the corresponding cooling plate close to the connecting plate.

[0013] In one embodiment, a mounting groove extending along the first direction is provided in the connection plate, a control harness is provided in the mounting groove, and the control harness is electrically connected to the flow regulating valve.

[0014] In a second aspect, an embodiment of the present utility model provides a battery module, comprising:

[0015] A heat dissipation structure, wherein the heat dissipation structure is the heat dissipation structure as described above, wherein the heat dissipation structure comprises a plurality of cooling plates sequentially spaced and distributed along a first direction, an installation space for installing a battery cell is formed between two adjacent cooling plates, and a cooling channel is provided in the cooling plate; wherein a flow regulating valve is provided at the inlet or outlet of the cooling channel of at least one cooling plate, and the flow regulating valve is used to adjust the flow of the cooling medium in the corresponding cooling channel;

[0016] A plurality of battery cells are alternately distributed in sequence with the plurality of cooling plates of the heat dissipation structure in the first direction.

[0017] In one embodiment, the battery module also includes a temperature adjustment component, which includes a controller and a temperature detection component. The temperature detection component is used to detect the temperature of the battery cell or the cooling plate. The controller is electrically connected to the temperature detection component. The controller is used to control the opening of the flow regulating valve of at least one side of the cooling plate with the highest temperature to increase when the temperature difference between the multiple battery cells is greater than a preset temperature difference; or, the controller is used to control the opening of the flow regulating valve of the cooling plate with the highest temperature to increase when the temperature difference between the multiple cooling plates is greater than a preset temperature difference.

[0018] Beneficial effects of the embodiments of the utility model:

[0019] The heat dissipation structure provided in the embodiment of the present application is capable of adjusting the flow rate of the cooling medium in the cooling channel of the cooling plate through the flow rate regulating valve, by disposing a flow regulating valve for adjusting the flow rate of the cooling medium at the inlet or outlet of the cooling channel of at least one cooling plate, thereby adjusting the cooling efficiency of the cooling medium on the cooling plate, and further adjusting the cooling speed of the cooling plate on the battery cells on one side or both sides thereof, which is beneficial to achieving rapid cooling of one or more battery cells with higher temperatures among multiple battery cells, making the temperature difference of the multiple battery cells smaller and the temperature consistency better, thereby improving the performance of the battery module.

[0020] The battery module provided in the embodiment of the present application is capable of adjusting the flow rate of the cooling medium in the cooling channel of the cooling plate through the flow rate regulating valve, by disposing a flow regulating valve for adjusting the flow rate of the cooling medium at the inlet or outlet of the cooling channel of at least one cooling plate of the heat dissipation structure. This can adjust the cooling efficiency of the cooling medium on the cooling plate, and further adjust the cooling speed of the cooling plate on the battery cells on one side or both sides thereof, which is beneficial to achieving rapid cooling of one or more battery cells with higher temperatures among the multiple battery cells, making the temperature difference of the multiple battery cells smaller and the temperature consistency better, thereby improving the performance of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 is a schematic structural diagram of an embodiment of a battery module provided in an embodiment of the present application;

[0023] Figure 2 is a schematic diagram of the exploded structure of an embodiment of a battery module provided in an embodiment of the present application;

[0024] Figure 3 is a structural schematic diagram of an embodiment of a heat dissipation structure provided in an embodiment of the present application;

[0025] Figure 4 is a schematic diagram of the exploded structure of an embodiment of the heat dissipation structure provided in an embodiment of the present application;

[0026] Figure 5 yes Figure 3 The cross-sectional view along the AA direction;

[0027] Figure 6 yes Figure 3 A partial view of the cross-sectional view along the BB direction;

[0028] Figure 7 yes Figure 3 Cross-sectional view along CC direction;

[0029] Figure 8 It is a structural schematic diagram of another embodiment of the heat dissipation structure provided in an embodiment of the present application.

[0030] Battery module 100; heat dissipation structure 110; installation space 1100; cooling plate 111; cooling channel 1111; cooling section 1112; installation cavity 1113; side plate 1114; positioning portion 1115; flow regulating valve 112; connecting plate 113; flow channel 1130; first sub-flow channel 1131; second sub-flow channel 1132; first connecting port 1133; second connecting port 1134; installation groove 1135; third connecting port 1136; positioning notch 1137; control harness 114; battery cell 120; first direction X; second direction Y; third direction Z. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model. In the utility model, unless otherwise stated, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0032] In the related art, the battery module usually includes a heat dissipation structure for cooling and dissipating the heat of multiple battery cells to prevent the temperature of the battery cells from being too high and affecting the performance of the battery cells. Among them, the temperature of each battery cell of the battery module is usually different, but the heat dissipation efficiency of the heat dissipation structure for each battery cell is basically the same, which leads to a large difference in the temperature of each battery cell of the battery module, poor temperature consistency, and easily affects the performance of the battery module.

[0033] In order to avoid the above problems, an embodiment of the present application provides a heat dissipation structure and a battery module.

[0034] Figure 1 It is a structural schematic diagram of an embodiment of a battery module provided in an embodiment of the present application. Figure 2 FIG. 1 is a schematic diagram of the exploded structure of an embodiment of a battery module provided in an embodiment of the present application. Figure 1 and Figure 2As shown, the battery module 100 includes a heat dissipation structure 110 and a plurality of battery cells 120. The heat dissipation structure 110 includes a plurality of cooling plates 111 sequentially and spaced apart along a first direction X, and an installation space for installing the battery cells 120 is formed between two adjacent cooling plates 111. The plurality of battery cells 120 and the plurality of cooling plates 111 are alternately distributed in the first direction X, so that the battery cells 120 are installed in the installation space between two adjacent cooling plates 111, so that the battery cells 120 can be cooled by the cooling plates 111.

[0035] Among them, Figure 5 As shown, a cooling channel 1111 is provided in the cooling plate 111 of the heat dissipation structure 110. The cooling channel 1111 includes an inlet and an outlet, and the inlet and outlet of the cooling channel 1111 can be directly or indirectly connected to a cooling medium supply device, so that the cooling medium supply device provides cooling medium to the cooling channel 1111 of the cooling plate 111, and the cooling medium in the cooling channel 1111 flows back from the outlet of the cooling channel 1111 to the cooling medium supply device, thereby realizing a circulating flow of the cooling medium in the cooling channel 1111.

[0036] In some embodiments, Figure 5 and Figure 6 As shown, a flow regulating valve 112 may be provided at the inlet or outlet of the cooling channel 1111 of at least one cooling plate 111 , and the flow regulating valve 112 is used to regulate the flow of the cooling medium in the corresponding cooling channel 1111 .

[0037] The heat dissipation structure 110 provided in the embodiment of the present application is capable of adjusting the flow rate of the cooling medium in the cooling channel 1111 of the cooling plate 111 through the flow regulating valve 112, thereby adjusting the cooling efficiency of the cooling medium on the cooling plate 111, and further adjusting the cooling speed of the battery cells 120 on one or both sides of the cooling plate 111, by disposing a flow regulating valve 112 for adjusting the flow rate of the cooling medium at the inlet or outlet of the cooling channel 1111 of at least one cooling plate 111, thereby improving the performance of the battery module 100.

[0038] It should be noted that a flow regulating valve 112 may be provided at the inlet or outlet of the cooling channel 1111 of each cooling plate 111, or a flow regulating valve 112 may be provided at the inlet or outlet of the cooling channel 1111 of one or more cooling plates 111 among the multiple cooling plates 111. Of course, the former can adjust the flow of the cooling medium in the cooling channel 1111 of each cooling plate 111, which is more conducive to reducing the temperature difference of the multiple battery cells 120, improving the temperature consistency of the multiple battery cells 120, and further improving the performance of the battery module 100.

[0039] In addition, the flow control valve 112 may be a solenoid valve or other valve that can receive a control signal and adjust its opening according to the control signal.

[0040] In some embodiments, the flow regulating valve 112 can be located at the edge of the cooling plate 111. It is understandable that the battery cells 120 of the battery module 100 will expand and deform during the charging and discharging process, and when the battery cells 120 expand, they will apply a squeezing force to the cooling plates 111 between the battery cells 120. Among them, the expansion generated in the middle area of ​​the battery cell 120 is relatively large, and the middle area of ​​the battery cell 120 applies a relatively large squeezing force to the middle area of ​​the cooling plate 111, while the expansion and deformation generated in the edge area of ​​the battery cell 120 is relatively small, and the squeezing force applied by the edge area of ​​the battery cell 120 to the edge area of ​​the cooling plate 111 is relatively small. By locating the flow regulation at the edge of the cooling plate 111, the squeezing force generated by the expansion of the battery cell 120 on the flow regulating valve 112 can be reduced, which is conducive to reducing the risk of the flow regulating valve 112 being squeezed and damaged by the battery cell 120.

[0041] like Figures 3 to 6 As shown, the heat dissipation structure 110 may further include a connecting plate 113, and the edges of one side of the plurality of cooling plates 111 along the second direction Y are all connected to the connecting plate 113, and the second direction Y is arranged at an angle to the first direction X. The plurality of cooling plates 111 and the connecting plate 113 may be connected together by welding, screw fixing, snap connection, etc., so that the relative positions of the plurality of cooling plates 111 remain stable.

[0042] In some embodiments, a flow channel 1130 may be provided in the connecting plate 113, and the inlet and outlet of the cooling channel 1111 of the cooling plate 111 are respectively connected to the flow channel 1130. Thus, the cooling medium in the flow channel 1130 may enter the cooling channel 1111 from the inlet of the cooling channel 1111 of the cooling plate 111, and flow out from the outlet of the cooling channel 1111 into the flow channel 1130.

[0043] The flow regulating valve 112 may be disposed at an edge of the corresponding cooling plate 111 close to the connecting plate 113. Alternatively, the flow regulating valve 112 may be disposed at an edge of the corresponding cooling plate 111 away from the connecting plate 113. In addition, the flow regulating valve 112 may be disposed at an edge of the corresponding cooling plate 111 along the third direction Z, wherein the first direction X and the second direction Y form an angle with the third direction Z, respectively.

[0044] Specifically, the inlet and outlet of the cooling channel 1111 of the cooling plate 111 are located on one side of the cooling plate 111 close to the connecting plate 113, so that after the cooling plate 111 is connected to the connecting plate 113, the inlet and outlet of the cooling channel 1111 of the cooling plate 111 are respectively connected to the flow channel 1130 in the connecting plate 113.

[0045] The cooling channel 1111 of the cooling plate 111 includes a plurality of cooling segments 1112 extending along the second direction Y, the plurality of cooling segments 1112 are sequentially distributed along the third direction Z, and the plurality of cooling segments 1112 are sequentially connected in series along the third direction Z. The inlet of the cooling channel 1111 of the cooling plate 111 is located at one end of a cooling segment 1112 on one side of the third direction Z among the plurality of cooling segments 1112, close to the connecting plate 113. The outlet of the cooling channel 1111 of the cooling plate 111 is located at one end of a cooling segment 1112 on the other side of the third direction Z among the plurality of cooling segments 1112, close to the connecting plate 113.

[0046] In some embodiments, Figure 4 and Figure 7 As shown, the flow channel 1130 of the connecting plate 113 includes a first sub-flow channel 1131 and a second sub-flow channel 1132 extending respectively along the first direction X, the first sub-flow channel 1131 and the second sub-flow channel 1132 are sequentially distributed along the second direction Y, the first sub-flow channel 1131 is connected to the inlet of the cooling channel 1111 of the cooling plate 111, and the second sub-flow channel 1132 is connected to the outlet of the cooling channel 1111 of the cooling plate 111. One end of the first sub-flow channel 1131 along the first direction X is the inlet of the flow channel 1130, and one end of the second sub-flow channel 1132 along the first direction X is the outlet of the flow channel 1130, and the other end of the first sub-flow channel 1131 along the first direction X can be connected or disconnected with the other end of the second sub-flow channel 1132 along the first direction X.

[0047] Among them, a first connecting port 1133 connected to the first sub-channel 1131 is opened on the side plate 1114 of the connecting plate 113 facing the cooling plate 111. When the cooling plate 111 is connected to the connecting plate 113, the first connecting port 1133 is located in the positive projection area of ​​the cooling plate 111 in the connecting plate 113. The first connecting port 1133 corresponds to the entrance position of the cooling channel 1111 of the cooling plate 111, so that the entrance of the cooling channel 1111 of the cooling plate 111 is connected to the first connecting port 1133, that is, the entrance of the cooling channel 1111 of the cooling plate 111 is connected to the first channel 1130.

[0048] A second connection port 1134 connected to the second sub-channel 1132 is provided on a side plate 1114 of the connecting plate 113 facing the cooling plate 111. When the cooling plate 111 is connected to the connecting plate 113, the second connection port 1134 is located in the positive projection area of ​​the cooling plate 111 in the connecting plate 113. The second connection port 1134 corresponds to the outlet position of the cooling channel 1111 of the cooling plate 111, so that the outlet of the cooling channel 1111 of the cooling plate 111 is connected to the second connection port 1134, that is, the outlet of the cooling channel 1111 of the cooling plate 111 is connected to the second channel 1130.

[0049] In some embodiments, Figure 5 and Figure 6 As shown, a mounting cavity 1113 may be formed in the cooling plate 111 , and the flow regulating valve 112 may be mounted in the mounting cavity 1113 , thereby preventing the flow regulating valve 112 from directly contacting the battery cell 120 and being subjected to the squeezing force generated when the battery cell 120 expands.

[0050] Among them, Figure 6 As shown, the cooling plate 111 may include two side plates 1114, and the two side plates 1114 are distributed on both sides of the installation cavity 1113 along the first direction X. That is, the flow regulating valve 112 is wrapped in the cooling plate 111. Specifically, the surface of one side of the cooling plate 111 facing the connecting plate 113 is recessed to form the installation cavity 1113, the inlet of the cooling channel 1111 is opened on the bottom surface of the installation cavity 1113 away from the connecting plate 113, the flow regulating valve 112 is arranged in the installation cavity 1113, and the inlet of the flow regulating valve 112 is connected to the flow channel 1130, and the outlet of the flow regulating valve 112 is connected to the inlet of the cooling channel 1111, so that the flow regulating valve 112 is arranged at the inlet of the cooling channel 1111. Of course, when the flow regulating valve 112 is arranged at the outlet of the cooling channel 1111, the arrangement method of the flow regulating valve 112 is basically the same as the method of arranging the flow regulating valve 112 at the outlet of the cooling channel 1111.

[0051] In other embodiments, Figure 8As shown, the installation cavity 1113 of the cooling plate 111 can penetrate the cooling plate 111 along the first direction X, so as to facilitate taking out the flow regulating valve 112 from the installation cavity 1113, thereby making the installation and maintenance of the flow regulating valve 112 simpler and more convenient.

[0052] It should be noted that when the cooling channels 1111 of multiple cooling plates 111 are all provided with flow regulating valves 112, the setting mode and setting position of the flow regulating valves 112 of each cooling plate 111 can be the same, or the setting mode or setting position of the flow regulating valves 112 of each cooling plate 111 can be different. For example, the flow regulating valves 112 of some cooling plates 111 can be arranged at the entrance of the cooling channel 1111, while the regulating flow valves of another part of the cooling plates 111 can be arranged at the exit of the cooling channel 1111. In addition, the installation cavities 1113 of some cooling plates 111 can have side plates 1114 on both sides along the first direction X, while the installation cavities 1113 of another part of the cooling plates 111 can pass through the cooling plates 111 along the first direction X.

[0053] In some embodiments, Figure 4 and Figure 7 As shown, the heat dissipation structure 110 includes a control harness 114 electrically connected to the flow regulating valve 112, so as to output a control signal to the flow regulating valve 112 through the control harness 114, thereby controlling the flow regulating valve 112 to adjust its own opening.

[0054] A mounting groove 1135 extending along the first direction X may be opened in the connecting plate 113 , and the control harness 114 is arranged in the mounting groove 1135 , so as to prevent the control harness 114 from being pressurized by the battery cell 120 or other structures of the battery module 100 .

[0055] Specifically, a third connection port 1136 connected to the installation groove 1135 is provided on the side plate 1114 of the connecting plate 113 facing the cooling plate 111. When the cooling plate 111 is connected to the connecting plate 113, the third connection port 1136 corresponds to the position of the cooling plate 111. The third connection port 1136 is located within the positive projection area of ​​the cooling plate 111 on the connecting plate 113, so that the flow regulating valve 112 in the installation cavity 1113 of the cooling plate 111 can be electrically connected to the flow regulating valve 112 in the installation groove 1135 through the third connection port 1136.

[0056] In some embodiments, Figure 3 and Figure 4As shown, positioning notches 1137 can be opened on both sides of the connecting plate 113 along the third direction Z, and two positioning portions 1115 can be protruded on one side of the cooling plate 111 close to the connecting plate 113, and the positioning portions 1115 are located on both sides of the cooling plate 111 along the third direction Z. When the cooling plate 111 is connected to the connecting plate 113, the two positioning portions 1115 of the cooling plate 111 are inserted into the two positioning notches 1137 of the connecting plate 113, thereby realizing rapid positioning of the cooling plate 111 and the connecting plate 113, and through the cooperation between the two positioning portions 1115 of the cooling plate 111 and the two positioning notches 1137 of the connecting plate 113, the connection stability between the cooling plate 111 and the connecting plate 113 can be further improved.

[0057] An embodiment of the present application also provides a battery module, which includes a heat dissipation structure. The specific structure of the heat dissipation structure refers to the various embodiments of the above-mentioned heat dissipation structure. Since the battery module adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0058] Among them, Figure 1 and Figure 2 As shown, the battery module 100 includes a heat dissipation structure 110 and a plurality of battery cells 120. The heat dissipation structure 110 may be the heat dissipation structure 110 in any of the above-mentioned embodiments. The plurality of battery cells 120 and the plurality of cooling plates 111 of the heat dissipation structure 110 are alternately distributed in sequence in a first direction X, so that there is a cooling plate 111 between two battery cells 120 for cooling.

[0059] The battery module 100 provided in the embodiment of the present application is configured with a flow regulating valve 112 for regulating the flow of the cooling medium at the inlet or outlet of the cooling channel 1111 of at least one cooling plate 111 of the heat dissipation structure 110. The flow regulating valve 112 can be used to regulate the flow of the cooling medium in the cooling channel 1111 of the cooling plate 111, thereby regulating the cooling efficiency of the cooling medium on the cooling plate 111, and further regulating the cooling speed of the cooling plate 111 on the battery cells 120 on one or both sides thereof, which is beneficial to achieving rapid cooling of one or more battery cells 120 with higher temperatures among the multiple battery cells 120, so that the temperature difference of the multiple battery cells 120 is smaller and the temperature consistency is better, thereby improving the performance of the battery module 100.

[0060] In some embodiments, the battery module 100 may also include a temperature adjustment component (not shown in the figure), which is used to detect the temperature of the battery cell 120 or the cooling plate 111, and adjust the opening of the flow regulating valve 112 of each cooling plate 111 according to the temperature of the battery cell 120 or the cooling plate 111, thereby adjusting the heat dissipation efficiency of the cooling plate 111 to the battery cell 120.

[0061] Among them, when the temperature difference between multiple battery cells 120 or multiple cooling plates 111 is greater than a preset temperature difference, the temperature adjustment component can control the opening of the flow control valve 112 of the cooling plate 111 that abuts the battery cell 120 with the highest temperature to increase, or control the opening of the flow control valve 112 of the cooling plate 111 with the highest temperature to increase, thereby improving the cooling efficiency of the cooling plate 111 on the battery cell 120 with the highest temperature, so that the temperature of the battery cell 120 with the highest temperature can be reduced, thereby reducing the temperature difference between multiple battery cells 120.

[0062] It is understandable that when the temperature difference of the multiple battery cells 120 is greater than the preset temperature difference, the temperature of the cooling plate 111 abutting against the battery cell 120 with the highest temperature will also increase. Therefore, the temperature of each cooling plate 111 will also reflect the temperature of the battery cell 120 abutting against it. By detecting the temperature of the battery cell 120 or the cooling plate 111, it is possible to effectively determine whether there is a large temperature difference between the multiple battery cells 120. Of course, if the temperature of the battery cell 120 is directly detected, the temperature difference of the multiple battery cells 120 can be determined more quickly and accurately.

[0063] In some embodiments, the temperature adjustment component may include a controller and a temperature detection component, the temperature detection component is used to detect the temperature of the battery cell 120 or the cooling plate 111, the controller is electrically connected to the temperature detection component, and the controller is used to control the opening of the flow regulating valve 112 of the cooling plate 111 on at least one side of the battery cell 120 with the highest temperature to increase when the temperature difference of the multiple battery cells 120 is greater than the preset temperature difference, thereby increasing the flow of cooling medium in the cooling channel 1111 in the cooling plate 111 abutting the battery cell 120 with the highest temperature, improving the cooling efficiency of the cooling plate 111 on the battery cell 120 with the highest temperature, and reducing the temperature difference of the multiple battery cells 120.

[0064] Alternatively, the controller can also be used to control the opening of the flow regulating valve 112 of the cooling plate 111 with the highest temperature to increase when the temperature difference between the multiple cooling plates 111 is greater than a preset temperature difference, thereby increasing the flow of cooling medium in the cooling channel 1111 in the cooling plate 111 abutting against the battery cell 120 with the highest temperature, thereby improving the cooling efficiency of the cooling plate 111 for the battery cell 120 with the highest temperature, thereby reducing the temperature difference between the multiple battery cells 120.

[0065] An embodiment of the present application also provides a vehicle, which includes a battery module. The specific structure of the battery module refers to the various embodiments of the above-mentioned battery module. Since the vehicle adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0066] The above is a detailed introduction to the embodiments of the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for technicians in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A heat dissipation structure, characterized in that: It comprises a plurality of cooling plates which are sequentially spaced and distributed along a first direction, an installation space for installing a battery cell is formed between two adjacent cooling plates, and a cooling channel is provided in the cooling plate; Wherein, a flow regulating valve is provided at the inlet or outlet of the cooling channel of at least one of the cooling plates, and the flow regulating valve is used to regulate the flow of the cooling medium in the corresponding cooling channel.

2. The heat dissipation structure according to claim 1, characterized in that: The flow regulating valve is located at the edge of the cooling plate.

3. The heat dissipation structure according to claim 1, characterized in that: An installation cavity is formed in the cooling plate, and the flow regulating valve is installed in the installation cavity.

4. The heat dissipation structure according to claim 3, characterized in that: The installation cavity of the cooling plate penetrates the cooling plate along the first direction.

5. The heat dissipation structure according to claim 3, characterized in that: The cooling plate includes two side plates, and the two side plates are distributed on both sides of the installation cavity along the first direction.

6. The heat dissipation structure according to claim 1, characterized in that: The inlet or outlet of the cooling channel of each cooling plate is provided with the flow regulating valve.

7. The heat dissipation structure according to any one of claims 1 to 6, characterized in that: The heat dissipation structure further includes a connecting plate, one side edge of the plurality of cooling plates along a second direction are all connected to the connecting plate, the second direction is arranged at an angle to the first direction, a flow channel is provided in the connecting plate, and an inlet and an outlet of the cooling channel of the cooling plate are respectively connected to the flow channel; Wherein, the flow regulating valve is arranged on the edge of the corresponding cooling plate close to the connecting plate.

8. The heat dissipation structure according to claim 7, characterized in that: An installation groove extending along the first direction is provided in the connection plate, a control harness is provided in the installation groove, and the control harness is electrically connected to the flow regulating valve.

9. A battery module, characterized in that: include: A heat dissipation structure, wherein the heat dissipation structure is the heat dissipation structure according to any one of claims 1 to 8; A plurality of battery cells are alternately distributed in sequence with the plurality of cooling plates of the heat dissipation structure in the first direction.

10. The battery module according to claim 9, characterized in that: The battery module also includes a temperature adjustment component, which includes a controller and a temperature detection component. The temperature detection component is used to detect the temperature of the battery cell or the cooling plate. The controller is electrically connected to the temperature detection component. The controller is used to control the opening of the flow control valve of at least one side of the cooling plate with the highest temperature to increase when the temperature difference between the multiple battery cells is greater than a preset temperature difference; or, the controller is used to control the opening of the flow control valve of the cooling plate with the highest temperature to increase when the temperature difference between the multiple cooling plates is greater than a preset temperature difference.

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