Thermal management device digital model determination method, device, equipment, storage medium and battery

Abstract

The present application relates to a method, device, equipment, storage medium and battery for determining the digital model of a thermal management device, the method comprising: obtaining the component parameters of at least one battery component in a target battery; wherein the battery component comprises at least one of the following: a battery cell group, a box frame, an inlet of a thermal management medium, an outlet of a thermal management medium, and a fastener; the component parameters comprise at least one of the following: position coordinates, quantity, and size; determining the flow path parameters of the flow channel in the target thermal management device corresponding to the target battery according to the component parameters, the flow channel being used for the circulation of the thermal management medium in the thermal management device; determining the digital model of the target thermal management device according to the component parameters and the flow path parameters. The embodiments of the present application can be beneficial to improving the design efficiency of the target thermal management device.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a method, device, equipment, storage medium and battery for determining a digital model of a thermal management device. Background Art

[0002] As a high-energy-density, rechargeable energy storage device, power batteries have a wide range of applications that are constantly expanding. Among them, the activity of chemical substances in power batteries is greatly affected by temperature. Therefore, operating power batteries at appropriate temperatures can greatly improve battery performance and energy utilization.

[0003] Generally speaking, the thermal management device is one of the mainstream power battery components, and plays an important role in cooling the power battery at high temperatures and heating it at low temperatures. Therefore, the design of the thermal management device is very important for the power battery. However, the design method of the thermal management device in the related art has the problem of low design efficiency. Summary of the invention

[0004] In view of the above problems, the present application provides a method, device, equipment, storage medium and battery for determining a digital model of a thermal management device, which can solve the problem of low design efficiency of thermal management devices in related technologies.

[0005] In a first aspect, the present application provides a method for determining a digital analog of a thermal management device, the method comprising:

[0006] Obtaining component parameters of at least one battery component in the target battery; wherein the battery component includes at least one of the following: a battery cell group, a box frame, an inlet of a thermal management medium, an outlet of a thermal management medium, and a fastener; the component parameters include at least one of the following: position coordinates, quantity, and size;

[0007] Determine, according to the component parameters, a flow path parameter of a flow channel in a target thermal management device corresponding to the target battery, the flow channel being used for circulation of a thermal management medium in the thermal management device;

[0008] According to the component parameters and the flow path parameters, a digital model of the target thermal management device is determined.

[0009] In the embodiment of the present application, by determining the flow path parameters of the flow channel in the target thermal management device corresponding to the target battery according to the component parameters of at least one battery component in the target battery, it is possible to determine the flow path parameters of the flow channel in the target thermal management device in a standardized manner in combination with the component parameters of the relevant battery components, which is conducive to the flow path parameters of the flow channel being more in line with the flow channel design specifications, so that the flow path planning of the target thermal management device that can meet the flow channel design requirements can be obtained more quickly, thereby facilitating the improvement of the flow path planning efficiency in the target thermal management device. Further, by determining the digital model of the target thermal management device according to the component parameters of the battery components in the target battery and the flow path parameters of the flow channel in the target thermal management device, on the one hand, because the flow path parameters used are the more accurate flow path parameters of the flow channel in the target thermal management device obtained above, on the other hand, because the digital model of the target thermal management device can be constructed in a standardized manner by combining the component parameters of the relevant battery components and the flow path parameters, it is conducive to more quickly obtaining the digital model of the target thermal management device that meets the flow channel design requirements, thereby saving labor costs and time costs, and facilitating the improvement of the construction efficiency of the digital model of the target thermal management device. It can be seen that the embodiments of the present application can be helpful in improving the design efficiency of the target thermal management device.

[0010] In some embodiments, the flow channel includes at least one of the following: an inlet connection flow channel for a thermal management medium, a main inlet flow channel, a flow channel within a battery cell group, a connection flow channel between battery cell groups, a main outlet flow channel, and an outlet connection flow channel for a thermal management medium;

[0011] Among them, the two ends of the inlet connecting channel of the thermal management medium are respectively connected to the inlet of the thermal management medium and the main inlet channel; the two ends of the outlet connecting channel of the thermal management medium are respectively connected to the main outlet channel and the outlet of the thermal management medium; the main inlet channel is used to input the thermal management medium into the channel inside the battery cell group; the main outlet channel is used to transmit the thermal management medium output from the channel inside the battery cell group; the connecting channel between battery cell groups is used to transmit the thermal management medium in the flow channels of two adjacent battery cell groups.

[0012] In some embodiments, the flow channel includes a main outlet flow channel, the battery assembly includes a battery cell group and a box frame, and the flow channel path parameters of the flow channel in the target thermal management device corresponding to the target battery are determined according to the assembly parameters, including:

[0013] Determine the number of flow path paths N of the main outlet flow channel according to the number of battery cell groups in the component parameters; wherein N is an integer greater than 0;

[0014] The flow path parameters of the main outlet flow channel corresponding to the target battery are determined according to the number N of flow path paths of the main outlet flow channel, the battery cell group position coordinates and the box frame position coordinates in the component parameters; wherein the battery cell group position coordinates and the box frame position coordinates both belong to the XY plane coordinate system where the box frame of the target battery is located.

[0015] The embodiments of the present application realize that more accurate flow path parameters of the main outlet flow channel corresponding to the target battery can be determined in a standardized manner based on the number N of flow paths of the main outlet flow channel, the position coordinates of the battery cell group and the position coordinates of the box frame. This is not only beneficial to improving the design accuracy of the main outlet flow channel to optimize the thermal performance of the battery, but also beneficial to improving the flow path planning efficiency in the target thermal management device.

[0016] In some embodiments, the flow path parameters of the main outlet flow channel corresponding to the target battery are determined according to the flow path number N of the main outlet flow channel, the battery cell group position coordinates in the component parameters, and the box frame position coordinates, including:

[0017] Determine the center line of the box frame in the Y direction in the XY plane coordinate system according to the position coordinates of the box frame, and symmetrically set N / 2 flow path paths of the main outlet flow channels on both sides of the center line parallel to the X direction in the XY plane coordinate system; wherein the distance between the flow path paths of the two main outlet flow channels close to the center line along the Y direction is the preset reserved space width;

[0018] For each main outlet flow path, the end point coordinates and the start point coordinates of the flow path of the main outlet flow path are determined according to the position coordinates of the first battery cell group and the last battery cell group corresponding to the flow path of the main outlet flow path along the X direction.

[0019] In some embodiments, according to the position coordinates of the first battery cell group and the last battery cell group corresponding to the flow path of the main outlet flow channel along the X direction, the end point coordinates and the starting point coordinates of the flow path of the main outlet flow channel are determined, including:

[0020] The end point coordinates of the flow path of the main outlet flow channel are determined according to the minimum position coordinates of the first battery cell group along the X direction, and the starting point coordinates of the flow path of the main outlet flow channel are determined according to the minimum position coordinates of the last battery cell group along the X direction, the preset maximum flow channel width and the preset minimum welding width.

[0021] In some embodiments, according to the number of battery cell groups in the component parameters, determining the number of flow path paths N of the main outlet flow channel includes:

[0022] If the number of battery cell groups arranged along the X direction in the XY plane coordinate system is less than a first preset number threshold, the number N of flow path paths of the main outlet flow channel is determined to be a first number; or,

[0023] If the number of battery cell groups arranged along the X direction is not less than the first preset number threshold, the number N of flow channel paths of the main outlet flow channel is determined to be a second number; wherein the second number is greater than the first number.

[0024] In some embodiments, the flow channel includes a main inlet flow channel, the battery assembly includes a battery cell group and a box frame, and the flow channel path parameters of the flow channel in the target thermal management device corresponding to the target battery are determined according to the assembly parameters, including:

[0025] Determine the number of flow path paths M of the main inlet flow channel according to the number of battery cell groups in the component parameters; wherein M is an integer greater than 0;

[0026] According to the number M of flow paths of the main inlet flow channel, the battery cell group position coordinates in the component parameters and the box frame position coordinates, the flow path parameters of the main inlet flow channel corresponding to the target battery are determined.

[0027] The embodiments of the present application realize that according to the number M of flow paths of the main inlet flow channel, the position coordinates of the battery cell group and the position coordinates of the box frame, the flow path parameters of the main inlet flow channel corresponding to the target battery can be determined in a standardized manner, which is not only beneficial to improving the design accuracy of the main inlet flow channel to optimize the thermal performance of the battery, but also beneficial to improving the flow path planning efficiency in the target thermal management device.

[0028] In some embodiments, the flow path parameters of the main inlet flow channel corresponding to the target battery are determined according to the flow path number M of the main inlet flow channel, the battery cell group position coordinates and the box frame position coordinates in the component parameters, including:

[0029] Determine the center line of the box frame in the Y direction in the XY plane coordinate system according to the position coordinates of the box frame, and set M / 2 flow path paths of the main inlet flow channel symmetrically on both sides of the center line based on the center line; wherein the distance between the starting point of the flow path of the main inlet flow channel close to the center line and the flow path of the adjacent main outlet flow channel along the Y direction is the preset reserved space width, and the distance between the end point of the flow path of the main inlet flow channel far from the center line and the adjacent box frame along the Y direction is zero;

[0030] For the flow path of each main inlet flow channel, the starting point coordinates and the end point coordinates of the flow path of the main inlet flow channel are determined according to the position coordinates of the first battery cell group and the last battery cell group corresponding to the flow path of the main outlet flow channel in the X direction in the XY plane coordinate system;

[0031] The extension direction of the flow path of the main inlet flow channel is determined according to the starting point coordinates of the flow path of the main inlet flow channel, the end point coordinates of the flow path of the main inlet flow channel and the position coordinates of the box frame.

[0032] In some embodiments, determining the starting point coordinates and the end point coordinates of the flow path of the main inlet flow channel according to the position coordinates of the first battery cell group and the last battery cell group corresponding to the flow path of the main outlet flow channel in the X direction in the XY plane coordinate system includes:

[0033] Determine the starting point coordinates of the flow path of the main inlet flow channel according to the minimum position coordinates of the first battery cell group along the X direction;

[0034] The end point coordinates of the flow path of the main inlet flow channel are determined according to the maximum position coordinates of the last battery cell group along the X direction.

[0035] In some embodiments, determining the extension direction of the flow path of the main inlet flow channel according to the starting point coordinates of the flow path of the main inlet flow channel, the end point coordinates of the flow path of the main inlet flow channel and the position coordinates of the box frame includes:

[0036] Determine to start from the starting point coordinate of the flow path of the main inlet flow channel, extend a first preset distance along the X direction, and extend to a first middle position point along the Y direction; wherein the distance between the first middle position point and the box frame in the X direction is a second preset distance;

[0037] Determine a second middle position point extending from the first middle position point to the box frame along the Y direction; wherein the distance between the second middle position point and the box frame along the X direction is a third preset distance;

[0038] Starting from the second middle position point, it extends along the Y direction to the box frame along the X direction, and extends along the X direction to the end point coordinate of the flow path of the main inlet flow channel.

[0039] In some embodiments, the flow channel includes an outlet connection flow channel of a thermal management medium, the battery assembly includes an inlet of a thermal management medium, an outlet of a thermal management medium, a box frame, and a fastener, and the flow channel path parameters of the flow channel in the target thermal management device corresponding to the target battery are determined according to the assembly parameters, including:

[0040] Taking the outlet position coordinates of the thermal management medium in the component parameters as the origin of the reference map, the box frame position coordinates, the inlet position coordinates of the thermal management medium, the fastener position coordinates, and the end point coordinates of the flow path of the main outlet flow channel in the component parameters are respectively converted to the box frame position coordinates, the inlet position coordinates of the thermal management medium, the fastener position coordinates, and the end point coordinates of the flow path of the main outlet flow channel in the reference map;

[0041] Determine a first planned path from the origin of the reference map to the end point coordinates of the flow path of the main outlet flow channel in the reference map according to a preset search algorithm; wherein the first planned path includes a plurality of first planned position points;

[0042] The flow channel path parameters of the outlet connection flow channel of the thermal management medium are determined according to the first planned path.

[0043] The embodiment of the present application realizes that according to the position coordinates of the box frame, the inlet position coordinates of the thermal management medium, the fastener position coordinates and the end point coordinates of the flow path of the main outlet flow channel, the flow path parameters of the outlet connecting flow channel of the thermal management medium that can avoid different obstacles can be determined in a standardized manner according to a preset search algorithm, which is beneficial for the flow path parameters of the outlet connecting flow channel to better meet the flow channel design requirements, thereby not only facilitating the improvement of the design accuracy of the outlet connecting flow channel to optimize the thermal performance of the battery, but also facilitating the improvement of the flow path planning efficiency in the target thermal management device.

[0044] In some embodiments, determining a first planned path from an origin of a reference map to an end point coordinate of a flow path of a main outlet flow channel in the reference map according to a preset search algorithm includes:

[0045] For each first planned position point, according to a preset search step length, a position point in the reference map that minimizes the value of a preset optimization function is used as the next first planned position point adjacent to the first planned position point;

[0046] A first planned path is obtained according to each first planned position point.

[0047] In some embodiments, determining the flow path parameters of the outlet connection flow channel of the thermal management medium according to the first planned path includes:

[0048] The first planned path is converted into a first planned path in an XY plane coordinate system where the box frame of the target battery is located;

[0049] If the endpoint coordinates of the first planned path in the XY plane coordinate system match the endpoint coordinates of the flow path of the main outlet flow channel, the first planned path in the XY plane coordinate system is used as the flow path of the outlet connecting flow channel of the thermal management medium.

[0050] In some embodiments, the method further comprises:

[0051] If the end point coordinates of the first planned path in the XY plane coordinate system do not match the end point coordinates of the flow path of the main outlet flow channel, the first planned path in the XY plane coordinate system is adjusted according to the deviation distance between the end point coordinates of the first planned path in the XY plane coordinate system and the end point coordinates of the flow path of the main outlet flow channel to obtain an adjusted first planned path in the XY plane coordinate system;

[0052] The first planned path in the adjusted XY plane coordinate system is used as the flow path of the outlet connection flow channel of the thermal management medium.

[0053] In some embodiments, the flow channel includes an inlet connection flow channel of a thermal management medium, the battery assembly includes an inlet of the thermal management medium, an outlet of the thermal management medium, a box frame and a fastener, and the flow channel path parameters of the flow channel in the target thermal management device corresponding to the target battery are determined according to the assembly parameters, including:

[0054] Taking the inlet position coordinates of the thermal management medium in the component parameters as the origin of the reference map, the box frame position coordinates, the outlet position coordinates of the thermal management medium, the fastener position coordinates, and the starting point coordinates of the flow path of the main inlet flow channel in the component parameters are respectively converted to the box frame position coordinates, the outlet position coordinates of the thermal management medium, the fastener position coordinates, and the starting point coordinates of the flow path of the main inlet flow channel in the reference map;

[0055] Determine a second planned path from the origin of the reference map to the starting coordinates of the flow path of the main inlet flow channel in the reference map according to a preset search algorithm; wherein the second planned path includes a plurality of second planned position points;

[0056] The flow channel path parameters of the inlet connection flow channel of the heat management medium are determined according to the second planned path.

[0057] The embodiment of the present application realizes that according to the position coordinates of the box frame, the outlet position coordinates of the thermal management medium, the fastener position coordinates and the starting point coordinates of the flow path of the main inlet flow channel, the flow path parameters of the inlet connecting flow channel of the thermal management medium that can avoid different obstacles can be determined in a standardized manner according to a preset search algorithm, which is beneficial for the flow path parameters of the inlet connecting flow channel to better meet the flow channel design requirements, thereby not only facilitating the improvement of the design accuracy of the inlet connecting flow channel to optimize the thermal performance of the battery, but also facilitating the improvement of the flow path planning efficiency in the target thermal management device.

[0058] In some embodiments, determining the second planned path from the origin of the reference map to the starting point coordinates of the flow path of the main inlet flow channel in the reference map according to a preset search algorithm includes:

[0059] For each second planned location point, according to a preset search step length, a location point in the reference map that minimizes the value of a preset optimization function is used as the next second planned location point adjacent to the second planned location point;

[0060] A second planned path is obtained according to each second planned position point.

[0061] In some embodiments, determining the flow path parameters of the inlet connection flow channel of the thermal management medium according to the second planned path includes:

[0062] Convert the second planned path into a second planned path in an XY plane coordinate system where the box frame of the target battery is located;

[0063] If the end coordinates of the second planned path in the XY plane coordinate system match the start coordinates of the flow path of the main inlet flow channel, the second planned path in the XY plane coordinate system is used as the flow path of the inlet connection flow channel of the thermal management medium.

[0064] In some embodiments, the method further comprises:

[0065] If the end point coordinates of the second planned path in the XY plane coordinate system do not match the start point coordinates of the flow path of the main inlet flow channel, the second planned path in the XY plane coordinate system is adjusted according to the deviation distance between the start point coordinates of the second planned path in the XY plane coordinate system and the start point coordinates of the flow path of the main inlet flow channel to obtain an adjusted second planned path in the XY plane coordinate system;

[0066] The second planned path in the adjusted XY plane coordinate system is used as the flow path of the inlet connecting the flow channel of the thermal management medium.

[0067] In some embodiments, the flow channel includes a flow channel in a battery cell group, the battery assembly includes a battery cell group, and the flow channel path parameters of the flow channel in the target thermal management device corresponding to the target battery are determined according to the assembly parameters, including:

[0068] For each battery cell group, according to the flow path parameters of the main inlet flow channel, the flow path parameters of the main outlet flow channel and the position coordinates of the battery cell group in the assembly parameters, determine the actual cooling width of the module area corresponding to the battery cell group in the Y direction along the XY plane coordinates where the box frame of the target battery is located;

[0069] Determining a maximum number of flow path paths within the battery cell group according to an actual cooling width, a preset minimum welding width, a preset maximum flow path width, and a preset minimum flow path width;

[0070] According to the actual cooling width and the maximum number, the actual flow channel width of the flow channel path within the battery cell group and the actual welding width between the flow channel paths are determined.

[0071] The embodiments of the present application realize that based on the flow path parameters of the main inlet flow channel, the flow path parameters of the main outlet flow channel and the position coordinates of the battery cell group in the component parameters, the flow path parameters of the flow path within the battery cell group can be determined in a standardized manner, which is not only beneficial to improving the design accuracy of the flow channel within the battery cell group to optimize the thermal performance of the battery, but also beneficial to improving the flow path planning efficiency in the target thermal management device.

[0072] In some embodiments, determining an actual flow channel width of a flow channel path within a battery cell group and an actual welding width between flow channel paths according to the actual cooling width and the maximum number includes:

[0073] Determining an actual flow channel width of a flow channel path within a battery cell group based on an actual cooling width, a preset minimum welding width, a preset maximum flow channel width, and a maximum number;

[0074] The actual welding width between the flow channel paths within the battery cell group is determined based on the actual cooling width, the maximum number and the actual flow channel width.

[0075] In some embodiments, according to the flow path parameters of the main inlet flow channel, the flow path parameters of the main outlet flow channel and the position coordinates of the battery cell group in the assembly parameters, determining the actual cooling width of the module area corresponding to the battery cell group in the Y direction along the XY plane coordinates where the box frame of the target battery is located includes:

[0076] Determining whether a module area corresponding to the battery cell group includes a main inlet flow channel path and / or a main outlet flow channel path according to flow channel path parameters of the main inlet flow channel, flow channel path parameters of the main outlet flow channel and position coordinates of the battery cell group;

[0077] If the module area corresponding to the battery cell group does not include the main inlet flow channel path and the main outlet flow channel path, the difference between the maximum position coordinate and the minimum position coordinate of the battery cell group along the Y direction is used as the actual cooling width; or,

[0078] If the module area corresponding to the battery cell group includes a main inlet flow channel path or a main outlet flow channel path, the actual cooling width is determined based on the difference between the maximum position coordinate and the minimum position coordinate of the battery cell group along the Y direction, and the distance along the Y direction of the main flow channel path area corresponding to the main inlet flow channel path or the main outlet flow channel path.

[0079] In some embodiments, the flow channel includes a flow channel connecting battery cell groups, the battery assembly includes a battery cell group and a box frame, and the flow channel path parameters of the flow channel in the target thermal management device corresponding to the target battery are determined according to the assembly parameters, including:

[0080] According to the battery cell group position coordinates in the component parameters, determine the gap area between each battery cell group in the Y direction of the XY plane coordinate system where the box frame of the target battery is located;

[0081] For each gap region, obtaining flow path parameters of flow channels within the battery cell groups of two battery cell groups adjacent to the gap region;

[0082] The flow path parameters of the inter-battery cell group connecting flow channel between the two battery cell groups are determined according to the flow path parameters of the intra-battery cell group flow channels of the two battery cell groups.

[0083] The embodiment of the present application realizes that the flow path parameters of the inter-battery cell group connecting flow channel between two battery cell groups can be determined in a standardized manner based on the flow path parameters of the flow channels within the battery cell groups of two adjacent battery cell groups in each gap area. This is not only beneficial to improving the design accuracy of the inter-battery cell group connecting flow channel to optimize the thermal performance of the battery, but also beneficial to improving the flow path planning efficiency in the target thermal management device.

[0084] In some embodiments, determining the flow path parameters of the inter-battery cell group connecting flow channel between the two battery cell groups according to the flow path parameters of the intra-battery cell group flow channels of the two battery cell groups includes:

[0085] Determining flow path parameters of edge flow channels along the Y direction in the battery cell groups of the two battery cell groups according to the flow path parameters of the flow channels in the battery cell groups of the two battery cell groups;

[0086] The flow path parameters of the inter-battery cell group connecting flow channel between the two battery cell groups are determined according to the flow path parameters of the edge flow channels along the Y direction within the battery cell groups of the two battery cell groups.

[0087] In some embodiments, determining a digital model of a target thermal management device according to component parameters and flow path parameters includes:

[0088] Constructing a first thermal management device digital model and a second thermal management device digital model according to the box frame size in the component parameters;

[0089] Taking the digital model of the second thermal management device as a reference plane, all flow paths corresponding to the target battery are drawn in the digital model of the second thermal management device according to the flow path parameters to obtain the digital model of the first intermediate thermal management device;

[0090] A preset modeling operation is performed on the digital model of the first intermediate thermal management device to obtain a digital model of the target thermal management device.

[0091] The embodiments of the present application realize that a digital model of a thermal management device can be constructed in a standardized manner based on the box frame dimensions and flow path parameters in the component parameters, which can help to more quickly obtain a digital model of a target thermal management device that meets the flow path design requirements, thereby helping to further improve the efficiency of constructing the digital model of the thermal management device.

[0092] In some embodiments, performing a preset modeling operation on the digital model of the first intermediate thermal management device to obtain a digital model of the target thermal management device includes:

[0093] Performing a stretching boss operation on the digital model of the first intermediate thermal management device according to the flow channel width of each flow channel in the flow channel path parameter to obtain the digital model of the second intermediate thermal management device;

[0094] Performing a chamfering operation on the digital model of the second intermediate thermal management device to obtain a digital model of the third intermediate thermal management device;

[0095] The digital model of the third intermediate thermal management device is subjected to a shell extraction operation to obtain a digital model of the thermal management device.

[0096] In some embodiments, performing a chamfering operation on the digital model of the second intermediate thermal management device to obtain the digital model of the third intermediate thermal management device includes:

[0097] Performing a boundary extraction operation on the digital model of the second intermediate thermal management device, and determining each first angle and each second angle of the flow channel boss in the digital model of the second intermediate thermal management device; wherein the first angle includes an angle generated by a change in the direction of the flow channel path, and the second angle includes an angle of a top surface of the flow channel boss and an angle between a root of the flow channel boss and the digital model of the first thermal management device in the digital model of the second intermediate thermal management device;

[0098] A first chamfering operation is performed on each of the first angles, and a second chamfering operation is performed on each of the second angles to obtain a digital model of the third intermediate thermal management device.

[0099] In some embodiments, performing a first chamfering operation on each of the first angles includes:

[0100] determining a type of each of the first angles;

[0101] A first chamfering operation is performed on each of the first angles according to the type of each of the first angles.

[0102] In some embodiments, determining the type of each first angle in the flow path includes:

[0103] For each first angle, take the corner point of the first angle as the origin and draw corresponding unit vectors along the two sides of the first angle;

[0104] If the direction of the sum of the two unit vectors points to the outside of the flow path, the first angle is determined to be an inner chamfer;

[0105] If the direction of the sum of the two unit vectors points to the inside of the flow path, the first angle is determined to be an external chamfer.

[0106] In some embodiments, obtaining a component parameter of at least one battery component in a target battery includes:

[0107] Obtain the overall digital analog of the target battery;

[0108] According to the assembly digital-analog of the target battery, component parameters of at least one battery component in the target battery are determined.

[0109] The embodiments of the present application can achieve accurate determination of the component parameters of the battery components of the target battery, so that the flow path parameters of the flow channel in the target thermal management device can be determined in a standardized manner based on the component parameters of the battery components of the target battery, thereby facilitating further improvement of the flow path planning efficiency in the target thermal management device.

[0110] In some embodiments, determining a component parameter of at least one battery component in the target battery according to the assembly digital model of the target battery includes:

[0111] For each battery assembly, a search operation is performed on the target battery assembly digital-analog combination according to the identification of the battery assembly to obtain assembly parameters of the battery assembly; or,

[0112] Receive a click instruction for a battery component in the assembly digital model, and determine component parameters of the battery component according to the click instruction.

[0113] In some embodiments, the battery assembly includes a battery cell group, and a search operation is performed on the assembly digital-analog of the target battery according to the identification of the battery assembly to obtain the assembly parameters of the battery assembly, including:

[0114] Search the target battery's assembly digital-analog according to the battery cell group's identifier to obtain the digital-analog of all battery cells of the target battery;

[0115] Project each point in the digital model of all battery cells to the XY plane coordinate system where the box frame of the target battery is located, and determine the position coordinates of each battery cell in the XY plane coordinate system;

[0116] The battery cell groups are divided according to the preset X-direction threshold, the preset Y-direction threshold and the position coordinates of each battery cell in the XY plane coordinate system to obtain component parameters of the battery cell groups.

[0117] In a second aspect, the present application further provides a device for determining a digital analog of a thermal management device, the device comprising:

[0118] An acquisition module is used to acquire component parameters of at least one battery component in the target battery; wherein the battery component includes at least one of the following: a battery cell group, a box frame, an inlet of a thermal management medium, an outlet of a thermal management medium, and a fastener; and the component parameters include at least one of the following: position coordinates, quantity, and size;

[0119] A first determination module is used to determine a flow path parameter of a flow channel in a target thermal management device corresponding to a target battery according to the component parameters, the flow channel being used for circulation of a thermal management medium in the thermal management device;

[0120] The second determination module is used to determine the digital model of the target thermal management device according to the component parameters and the flow path parameters.

[0121] In a third aspect, the present application further provides a computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of any one of the methods in the first aspect when executing the computer program.

[0122] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of any one of the methods in the first aspect when the computer program is executed by a processor.

[0123] In a fifth aspect, the present application further provides a computer program product, comprising a computer program, which, when executed by a processor, implements the steps of any one of the methods in the first aspect above.

[0124] In a sixth aspect, the present application further provides a battery, comprising: a housing, at least one battery cell group, and a thermal management device manufactured based on any one of the methods in the first aspect above.

[0125] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0126] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0127] Figure 1 A schematic diagram of the structure of the digital model of the battery assembly provided in some embodiments of the present application;

[0128] Figure 2 A schematic flow chart of a method for determining a digital analog of a thermal management device provided in some embodiments of the present application;

[0129] Figure 3 A schematic diagram of a flow path of a flow channel in a target thermal management device provided in some embodiments of the present application;

[0130] Figure 4 A schematic flow chart of a method for determining flow path parameters of a flow channel in a target thermal management device provided in some embodiments of the present application;

[0131] Figure 5 A schematic flow chart of a method for determining flow path parameters of a main outlet flow channel provided in some embodiments of the present application;

[0132] Figure 6 A schematic flow chart of a method for determining flow path parameters of a flow channel in a target thermal management device provided in other embodiments of the present application;

[0133] Figure 7 A schematic flow chart of a method for determining flow path parameters of a main inlet flow channel provided in some embodiments of the present application;

[0134] Figure 8 A schematic flow chart of a method for determining flow path parameters of a flow channel in a target thermal management device provided in other embodiments of the present application;

[0135] Fig. 9 A schematic flow chart of a method for determining flow path parameters of a flow channel in a target thermal management device provided in other embodiments of the present application;

[0136] Fig.10 A schematic flow chart of a method for determining flow path parameters of a flow channel in a target thermal management device provided in other embodiments of the present application;

[0137] Fig.11 A schematic flow chart of a method for determining flow path parameters of a flow channel in a target thermal management device provided in other embodiments of the present application;

[0138] Fig.12 A schematic flow chart of a method for determining a digital model of a target thermal management device provided in some embodiments of the present application;

[0139] Fig.13 A schematic diagram of a flow chart of a preset modeling operation provided in some embodiments of the present application;

[0140] Fig.14 A schematic diagram of a method for determining the type of a first angle provided in some embodiments of the present application;

[0141] Fig.15A schematic top view of a portion of a first angle after a first chamfering operation is performed on the portion of the first angle provided in some embodiments of the present application;

[0142] Fig.16 A schematic cross-sectional view of a portion of a second angle after a second chamfering operation is performed on the portion of the second angle provided in some embodiments of the present application;

[0143] Fig.17 Some embodiments of the present application provide Fig.16 A schematic cross-sectional view of the structure shown after the shelling operation;

[0144] Fig.18 A schematic flow chart of a method for determining a digital model of a target thermal management device provided in some other embodiments of the present application;

[0145] Fig.19 A schematic diagram of a flow chart of a method for obtaining component parameters of a battery component provided in some embodiments of the present application;

[0146] Fig. 20 This is a schematic diagram of the structure of a device for determining a digital analog of a thermal management device in some embodiments of the present application;

[0147] Fig.21 This is a schematic diagram of the structure of a computer device in some embodiments of the present application. DETAILED DESCRIPTION

[0148] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0149] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the term "including" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0150] The method for determining the digital analog of a thermal management device in the embodiment of the present application can be applied to the research and development and production application scenarios of the thermal management device of the battery; of course, it can also be applied to other application scenarios.

[0151] At present, the activity of chemical substances in power batteries is greatly affected by temperature. Therefore, if power batteries operate at appropriate temperatures, battery performance and energy utilization can be greatly improved. Generally speaking, thermal management devices are one of the mainstream power battery components, and they play an important role in cooling power batteries at high temperatures and heating them at low temperatures. Therefore, the design of thermal management devices is very important for power batteries.

[0152] In the related art, the thermal management device is manually designed and modeled based on experience, which usually requires multiple optimizations through thermal simulation. Therefore, the design method of the thermal management device in the related art has the problem of low design efficiency.

[0153] Exemplarily, the thermal management device in the embodiments of the present application may include but is not limited to a water cooling plate.

[0154] In order to solve the problem of low design efficiency in related technologies, the present application proposes to obtain the position of the case frame, the position of the battery cell group, the inlet position and the outlet position of the thermal management medium in the target battery, and based on the position of the case frame, the position of the battery cell group, the inlet position and the outlet position of the thermal management medium in the target battery, the flow path planning can be intelligently performed in a preset standardized manner, and a digital model of the thermal management device can be constructed in a standardized manner based on the flow path planning results.

[0155] Based on the above considerations, an embodiment of the present application proposes a method of determining the flow path parameters of the flow channel in the target thermal management device corresponding to the target battery based on the component parameters of at least one battery component in the acquired target battery. This can achieve standardized determination of more accurate flow path parameters of the flow channel in the target thermal management device in combination with the component parameters of the relevant battery components (such as position coordinates, quantity and / or size, etc.), which is conducive to the flow path parameters of the flow channel being more in line with the flow channel design specifications, so that the flow path planning in the target thermal management device that can meet the flow channel design requirements can be obtained more quickly, thereby helping to improve the flow path planning efficiency in the target thermal management device. Furthermore, by determining the digital model of the target thermal management device according to the component parameters of the battery assembly in the target battery and the flow path parameters of the flow channel in the target thermal management device, on the one hand, because the flow path parameters used are the more accurate flow path parameters of the flow channel in the target thermal management device obtained above, and on the other hand, because the digital model of the target thermal management device can be constructed in a standardized manner by combining the component parameters and flow path parameters of the relevant battery assembly, it is helpful to more quickly obtain the digital model of the target thermal management device that meets the flow channel design requirements, thereby saving labor costs and time costs, and helping to improve the construction efficiency of the digital model of the target thermal management device. It can be seen that the embodiments of the present application can help improve the design efficiency of the target thermal management device.

[0156] For ease of understanding, the present application first provides an exemplary introduction to the relevant contents of the three-dimensional assembly digital model of the battery (or simply referred to as the assembly digital model), wherein the assembly digital model of the battery may refer to a three-dimensional digital model of a battery component in the battery or the entire battery system.

[0157] Figure 1A schematic diagram of the digital structure of the battery assembly provided in some embodiments of the present application, such as Figure 1 As shown, the battery assembly digital model may include a box frame 10, multiple battery cell groups 11, an inlet 12 for a thermal management medium, and an outlet 13 for a thermal management medium. Each battery cell group 11 may include multiple battery cells 110; the plane where the box frame 10 in any battery involved in the embodiment of the present application is located may be referred to as an XY plane.

[0158] It should be noted that Figure 1 The number of battery cell groups 11 and the number of battery cells 110 in each battery cell group 11 are exemplary and can be adjusted accordingly according to actual needs.

[0159] Of course, the battery assembly digital model may also include other battery components, such as fasteners, etc.

[0160] In some embodiments, Figure 2 The following is a flow chart of a method for determining the digital model of a thermal management device provided in some embodiments of the present application. In the embodiments of the present application, the method is applied to a computer device as an example for explanation. Figure 2 As shown, the method of the embodiment of the present application may include the following steps:

[0161] Step S201: Obtain component parameters of at least one battery component in a target battery.

[0162] In this step, the computer device may obtain component parameters of at least one battery component in the target battery.

[0163] The battery components in the target battery involved in the embodiments of the present application may include, but are not limited to, at least one of the following: a battery cell group, a box frame, an inlet of a thermal management medium, an outlet of a thermal management medium, and a fastener.

[0164] The component parameters involved in the embodiments of the present application may include but are not limited to at least one of the following: position coordinates, quantity, and size.

[0165] Exemplarily, the component parameters of the box frame may include, but are not limited to, the box frame position coordinates; wherein the box frame position coordinates may be used to indicate the position coordinates of the box frame of the target battery in the corresponding XY plane coordinate system.

[0166] Exemplarily, the component parameters of the battery cell group may include but are not limited to the number of battery cell groups and / or the battery cell group position coordinates. The number of battery cell groups may be used to indicate the number of battery cell groups in the target battery, and the battery cell group position coordinates may be used to indicate the position coordinates of each battery cell group in the target battery in the XY plane coordinate system where the box frame of the target battery is located.

[0167] Exemplarily, the component parameters of the thermal management medium inlet may include, but are not limited to, the thermal management medium inlet position coordinates and / or inlet size. The thermal management medium inlet position coordinates may be used to indicate the position coordinates of the thermal management medium inlet in the XY plane coordinate system where the box frame of the target battery is located.

[0168] Exemplarily, the component parameters of the outlet of the thermal management medium may include, but are not limited to, the outlet position coordinates and / or outlet size of the thermal management medium. The outlet position coordinates of the thermal management medium may be used to indicate the position coordinates of the outlet of the thermal management medium in the XY plane coordinate system where the box frame of the target battery is located.

[0169] Exemplarily, the component parameters of the fastener may include, but are not limited to, the fastener position coordinates and / or the fastener size. The fastener position coordinates may be used to indicate the position coordinates of the fastener in the XY plane coordinate system where the box frame of the target battery is located.

[0170] Of course, the battery assembly in the embodiment of the present application may also include other components that may affect the flow channel design in the thermal management device, and the embodiment of the present application will not illustrate them one by one.

[0171] In a possible implementation, the computer device may receive component parameters of at least one battery component in the target battery sent by other devices.

[0172] In another possible implementation, the computer device may receive a component parameter of at least one battery component in the target battery input by a user.

[0173] In another possible implementation, the computer device may determine the component parameters of at least one battery component in the target battery based on the acquired overall digital-analog data of the target battery.

[0174] Of course, the computer device may also obtain the component parameters of at least one battery component in the target battery in other ways.

[0175] Step S202: determining flow path parameters of a flow channel in a target thermal management device corresponding to a target battery according to component parameters, wherein the flow channel is used for circulation of a thermal management medium in the thermal management device.

[0176] In this step, the computer device can determine the flow path parameters of the flow channel in the target thermal management device corresponding to the target battery according to the component parameters of at least one battery component in the target battery in a first preset standardized manner. The flow channel in the target thermal management device can be used to circulate the thermal management medium in the thermal management device. Exemplarily, the thermal management medium can include but is not limited to a liquid medium or a gas medium.

[0177] In a possible implementation, the computer device may determine the flow path parameters of the flow channel in the target thermal management device according to the component parameters of at least one battery component in the target battery and the preset flow channel planning strategy. The preset flow channel planning strategy may refer to a planning strategy for planning a flow path that can meet the preset flow channel design requirements by combining the component parameters (such as position coordinates, quantity and / or size, etc.) of the relevant battery components.

[0178] Exemplarily, the preset flow channel planning strategy may include but is not limited to at least one of the following: a preset main outlet flow channel planning strategy, a preset main inlet flow channel planning strategy, a preset outlet connection flow channel planning strategy, a preset inlet connection flow channel planning strategy, a preset battery cell group intra-flow channel planning strategy, and a preset battery cell group inter-flow channel planning strategy.

[0179] In another possible implementation, the computer device may input the component parameters of at least one battery component in the target battery into a preset flow channel planning model to obtain the flow channel path parameters of the flow channel in the target thermal management device output by the preset flow channel planning model. The preset flow channel planning model may include but is not limited to a machine learning model.

[0180] Of course, the computer device may also determine the flow path parameters of the flow channel in the target thermal management device in other ways according to the component parameters.

[0181] It can be seen that compared with the design method of the thermal management device in the related art (which requires multiple optimizations through thermal simulation), in the embodiments of the present application, by determining the flow path parameters of the flow channel in the target thermal management device corresponding to the target battery according to the component parameters of at least one battery component in the target battery, it is possible to combine the component parameters of the relevant battery components (such as position coordinates, quantity and / or size, etc.) to determine more accurate flow path parameters of the flow channel in the target thermal management device in a standardized manner, which is conducive to the flow path parameters of the flow channel being more in line with the flow channel design specifications, so that the flow path planning in the target thermal management device that can meet the flow channel design requirements can be obtained more quickly, thereby helping to improve the efficiency of the flow path planning in the target thermal management device (it has been verified that it only takes 5 seconds to 1 minute depending on the complexity of the battery pack).

[0182] Step S203: Determine a digital model of the target thermal management device according to the component parameters and the flow path parameters.

[0183] In this step, the computer device may determine the digital model of the target thermal management device in accordance with the second preset standardized manner based on the component parameters of the battery components in the target battery and the flow path parameters of the flow channels in the target thermal management device.

[0184] In a possible implementation, the computer device may construct a digital model of the target thermal management device based on the preset three-dimensional modeling software according to the component parameters of the battery components in the target battery and the flow path parameters of the flow channels in the target thermal management device. Exemplarily, the preset three-dimensional modeling software may be a preset initial three-dimensional modeling software, or may be a three-dimensional modeling software obtained by secondary development of the preset initial three-dimensional modeling software. For example, the preset three-dimensional modeling software may include, but is not limited to, any of the following: CATIA, Unigraphics NX, Creo, SolidWorks, AutoCAD.

[0185] In another possible implementation, the computer device may input the component parameters of the battery components in the target battery and the flow path parameters of the flow channel in the target thermal management device into a preset modeling model to obtain a digital model of the target thermal management device output by the preset modeling model. The preset modeling model may include but is not limited to a machine learning model.

[0186] Of course, the computer device can also determine the digital model of the target thermal management device in other ways according to the component parameters and the flow path parameters.

[0187] In summary, compared with the design method of the thermal management device in the related art (which requires multiple optimizations through thermal simulation), in the embodiments of the present application, by determining the flow path parameters of the flow channel in the target thermal management device corresponding to the target battery based on the component parameters of at least one battery component in the acquired target battery, it is possible to combine the component parameters of the relevant battery components (such as position coordinates, quantity and / or size, etc.) to determine more accurate flow path parameters of the flow channel in the target thermal management device in a standardized manner, which is conducive to the flow path parameters of the flow channel being more in line with the flow channel design specifications, so that the flow path planning in the target thermal management device that can meet the flow channel design requirements can be obtained more quickly, thereby helping to improve the flow path planning efficiency in the target thermal management device. Furthermore, by determining the digital model of the target thermal management device according to the component parameters of the battery assembly in the target battery and the flow path parameters of the flow channel in the target thermal management device, on the one hand, because the flow path parameters used are the more accurate flow path parameters of the flow channel in the target thermal management device obtained above, and on the other hand, because the digital model of the target thermal management device can be constructed in a standardized manner by combining the component parameters and flow path parameters of the relevant battery assembly, it is helpful to more quickly obtain the digital model of the target thermal management device that meets the flow channel design requirements, thereby saving labor costs and time costs, and helping to improve the construction efficiency of the digital model of the target thermal management device. It can be seen that the embodiments of the present application can help improve the design efficiency of the target thermal management device.

[0188] In some embodiments, the flow channels in the target thermal management device in the embodiments of the present application may include but are not limited to at least one of the following: an inlet connecting flow channel of the thermal management medium, a main inlet flow channel, a flow channel within a battery cell group, a connecting flow channel between battery cell groups, a main outlet flow channel, and an outlet connecting flow channel of the thermal management medium.

[0189] Among them, the two ends of the inlet connecting flow channel of the thermal management medium can be connected to the inlet of the thermal management medium and the main inlet flow channel respectively; the two ends of the outlet connecting flow channel of the thermal management medium can be connected to the main outlet flow channel and the outlet of the thermal management medium respectively; the main inlet flow channel can be used to input the thermal management medium into the flow channel in the battery cell group; the main outlet flow channel can be used to transmit the thermal management medium output from the flow channel in the battery cell group; the inter-battery cell group connecting flow channel can be used to transmit the thermal management medium in the flow channels of two adjacent battery cell groups.

[0190] For ease of understanding, in the embodiment of the present application, an example is taken in which the number of flow path paths of the main inlet flow channel and the number of flow path paths of the main outlet flow channel are both 4, and the different flow channels in the target thermal management device are exemplarily introduced and explained.

[0191] Figure 3 A schematic diagram of a flow path of a flow channel in a target thermal management device provided in some embodiments of the present application, such as Figure 3 As shown, the flow channels in the target thermal management device may include: an inlet connecting flow channel 30 for the thermal management medium, four main inlet flow channels 31, multiple flow channels 32 within the battery cell group, multiple connecting flow channels 33 between battery cell groups, four main outlet flow channels 34 and an outlet connecting flow channel 35 for the thermal management medium.

[0192] Among them, the input end of the inlet connecting flow channel 30 of the thermal management medium can be connected to the inlet 36 connected to the thermal management medium, so that the thermal management medium can flow into the inlet connecting flow channel 30 from the inlet 36; the output end of the inlet connecting flow channel 30 of the thermal management medium can be connected to the input end of the main inlet flow channel 31, and the output end of the main inlet flow channel 31 can be connected to the flow channels 32 in multiple battery cell groups, so that the thermal management medium can be input into the flow channels in each battery cell group through the main inlet flow channel 31.

[0193] The flow channels in each battery cell group may be arranged along the long sides of the battery cell group.

[0194] It should be noted that the location of the inlet 36 of the heat management medium in the target heat management device corresponds to the location of the inlet 12 of the heat management medium in the battery assembly digital model.

[0195] The battery cell group inter-connection flow channel 33 is disposed between two adjacent battery cell group internal flow channels 32 , so as to facilitate the transmission of the thermal management medium of the two adjacent battery cell group internal flow channels 32 .

[0196] Among them, the input end of the main outlet flow channel 34 can be connected to at least one flow channel 32 in the battery cell group, and the output end of the main outlet flow channel 34 can be connected to the input end of the outlet connecting flow channel 35 of the thermal management medium, so that the thermal management medium of the flow channel 32 in the battery cell group can be output to the outlet connecting flow channel 35 through the main outlet flow channel 34; the output end of the outlet connecting flow channel 35 of the thermal management medium can be connected to the outlet 37 of the thermal management medium, so that the thermal management medium can be output through the outlet connecting flow channel 35.

[0197] It should be noted that the location of the outlet 37 of the heat management medium in the target heat management device corresponds to the location of the outlet 13 of the heat management medium in the battery assembly digital model.

[0198] In some embodiments, Figure 4 The present invention provides a flowchart of a method for determining the flow path parameters of a flow channel in a target thermal management device in some embodiments of the present invention. In the embodiments of the present invention, a battery assembly includes a battery cell group and a box frame, and the flow channel in the target thermal management device includes a main outlet flow channel. The relevant contents of how to determine the flow path parameters of the main outlet flow channel in the above step S202 are described as an example. Figure 4 As shown, the above step S202 may include the following steps:

[0199] Step S202a, determining the number N of flow path paths of the main outlet flow channel according to the number of battery cell groups in the component parameters; wherein N is an integer greater than 0.

[0200] In this step, the computer device can determine the number N of flow paths of the main outlet flow channel based on the number of battery cell groups in the component parameters of the battery cell group, so that the ability of the main outlet flow channel in the target thermal management device to output the thermal management medium can meet the demand for the thermal management medium required to be output by all battery cell groups in the target battery.

[0201] In a possible implementation, the computer device may determine the number N of flow path paths of the main outlet flow channel by comparing the number of battery cell groups in the component parameters of the battery cell group with a first preset number threshold.

[0202] Exemplarily, if the number of battery cell groups arranged along the X direction in the XY plane coordinate system is less than a first preset number threshold, the computer device may determine that the number N of flow channel paths of the main outlet flow channel is a first number.

[0203] In the embodiment of the present application, if the number of battery cell groups arranged in the target battery along the X direction in the XY plane coordinate system is less than the first preset number threshold, the computer device can determine that the number N of flow path paths of the main outlet flow channel can be the first number. For example, the first preset number threshold can include but is not limited to 2, and the first number can include but is not limited to 2.

[0204] In another example, if the number of battery cell groups arranged along the X direction in the XY plane coordinate system is not less than a first preset number threshold, the computer device can determine that the number N of flow path paths of the main outlet flow channel is a second number; wherein the second number is greater than the first number.

[0205] In the embodiment of the present application, if the number of battery cell groups arranged along the X direction in the target battery is not less than the first preset number threshold, the computer device can determine that the number N of flow path paths of the main outlet flow channel can be a second number. For example, the second number can include but is not limited to 4.

[0206] In another possible implementation, the computer device may determine the number N of flow path paths of the main outlet flow channel by querying the mapping relationship between the number of battery cell groups and the number of flow path paths according to the number of battery cell groups in the component parameters of the battery cell group. The mapping relationship between the number of battery cell groups and the number of flow path paths may be used to indicate the corresponding relationship between different numbers of battery cell groups and the number of flow path paths of the corresponding main outlet flow channel.

[0207] Of course, the computer device may also determine the number N of flow path of the main outlet flow channel in other ways according to the number of battery cell groups in the component parameters.

[0208] Step S202b, determining the flow path parameters of the main outlet flow channel corresponding to the target battery according to the flow path number N of the main outlet flow channel, the battery cell group position coordinates in the component parameters, and the box frame position coordinates.

[0209] The battery cell group position coordinates and the box frame position coordinates both belong to the XY plane coordinate system where the box frame of the target battery is located.

[0210] For example, any position coordinates in the component parameters of the battery assembly involved in the embodiments of the present application belong to the XY plane coordinate system where the box frame of the target battery is located, such as the battery cell group position coordinates, the box frame position coordinates, the inlet position coordinates, the outlet position coordinates, or the fastener position coordinates.

[0211] In this step, the computer device can determine the flow path parameters of the main outlet flow channel corresponding to the target battery based on the flow path number N of the main outlet flow channel, the battery cell group position coordinates in the component parameters of the battery cell group, and the box frame position coordinates in the component parameters of the box frame.

[0212] Exemplarily, the flow path parameters of the main outlet flow channel in the embodiment of the present application may include but are not limited to at least one of the following: the extension direction of the flow path of the main outlet flow channel, the end point coordinates and the starting point coordinates of the flow path of the main outlet flow channel.

[0213] For example, the flow channel width of the main outlet flow channel involved in the embodiment of the present application may be a preset maximum flow channel width. It should be understood that the preset maximum flow channel width involved in the embodiment of the present application may be adjusted accordingly according to different processes.

[0214] In one possible implementation, a computer device can input the number N of flow paths of the main outlet flow channel, the battery cell group position coordinates in the component parameters of the battery cell group, and the box frame position coordinates in the component parameters of the box frame into a preset flow channel planning model to obtain the flow path parameters of the main outlet flow channel corresponding to the target battery output by the preset flow channel planning model.

[0215] In another possible implementation, the computer device can determine the flow path parameters of the main outlet flow channel corresponding to the target battery according to the number N of flow path paths of the main outlet flow channel, the battery cell group position coordinates in the component parameters of the battery cell group, and the box frame position coordinates in the component parameters of the box frame, according to a preset main outlet flow channel planning strategy.

[0216] Exemplarily, the preset main outlet flow channel planning strategy may refer to a planning strategy for planning a main outlet flow channel path that can meet the preset main outlet flow channel design requirements by combining the battery cell group position coordinates and the box frame position coordinates.

[0217] For ease of understanding, the following embodiments of the present application provide an exemplary introduction and explanation of how to determine the flow path parameters of the main outlet flow channel corresponding to the target battery.

[0218] In some embodiments, Figure 5 A flow chart of a method for determining flow path parameters of a main outlet flow channel provided in some embodiments of the present application, such as Figure 5 As shown, the method of the embodiment of the present application may include the following steps:

[0219] Step S501, determine the center line of the box frame in the Y direction in the XY plane coordinate system according to the position coordinates of the box frame, and set N / 2 flow path paths of the main outlet flow channels symmetrically on both sides of the center line parallel to the X direction in the XY plane coordinate system; wherein the distance between the flow path paths of the two main outlet flow channels close to the center line along the Y direction is the preset reserved space width.

[0220] Exemplarily, the preset reserved space involved in the embodiments of the present application can be used to set the reserved space for components such as fasteners.

[0221] In this step, combine Figure 3 As shown, the computer device can determine the center line 38 of the box frame in the Y direction based on the position coordinates of the box frame.

[0222] Furthermore, combined with Figure 3 As shown, the computer device can set N / 2 flow path paths of the main outlet flow channel 34 symmetrically on both sides of the center line 38 parallel to the X direction based on the center line 38, that is, the computer device determines the extension direction of the flow path of the main outlet flow channel 34 and the position coordinates of the flow path of the main outlet flow channel 34 in the Y direction. It should be understood that Figure 3 In the example shown, N is 4.

[0223] For example, the distance between the flow paths of the two main outlet flow channels 34 close to the center line 38 along the Y direction can be the preset reserved space width ;in, ∈[0,+∞).

[0224] It should be noted that, when a plurality of flow paths of the main outlet flow channels 34 are arranged parallel to the X direction on any side of the center line 38, the distance between the flow paths of two adjacent main outlet flow channels 34 along the Y direction may be the preset minimum welding width G min .

[0225] It should be understood that the preset minimum welding width G involved in the embodiment of the present application min It can be adjusted accordingly according to different processes.

[0226] Step S502 : for each main outlet flow path, determine the end point coordinates and the start point coordinates of the flow path of the main outlet flow path according to the position coordinates of the first battery cell group and the last battery cell group corresponding to the flow path of the main outlet flow path along the X direction.

[0227] In this step, for the flow path of each main outlet flow channel, the computer device can determine the end point coordinates and the starting point coordinates of the flow path of the main outlet flow channel according to the position coordinates of the first battery cell group and the last battery cell group corresponding to the flow path of the main outlet flow channel along the X direction.

[0228] In some embodiments, the computer device can determine the end point coordinates of the flow path of the main outlet flow channel based on the minimum position coordinates of the first battery cell group along the X direction, and determine the starting point coordinates of the flow path of the main outlet flow channel based on the minimum position coordinates of the last battery cell group along the X direction, a preset maximum flow channel width and a preset minimum welding width.

[0229] Exemplarily, the computer device may use the minimum position coordinate of the first battery cell group along the X direction as the end point coordinate of the flow path of the main outlet flow channel in the X direction. Further, the computer device may obtain the start point coordinate of the flow path of the main outlet flow channel in the X direction by performing preset calculation processing on the minimum position coordinate of the last battery cell group along the X direction, the preset maximum flow channel width, and the preset minimum welding width.

[0230] For example, combined with Figure 3 As shown, for any flow path of the main outlet flow channel 34, the computer device can use the minimum position coordinate of the first battery cell group corresponding to the flow path of the main outlet flow channel 34 along the X direction as the end point coordinate of the flow path of the main outlet flow channel 34 in the X direction.

[0231] Furthermore, the computer device can determine the starting point coordinate 34R of the flow path of the main outlet flow channel 34 in the X direction according to the minimum position coordinate of the last battery cell group along the X direction, the preset maximum flow channel width and the preset minimum welding width by the following formula (1): S，X .

[0232] 34R S，X =C min +2*W max,pipe +G min Formula (1)

[0233] Among them, 34R S，X represents the starting point coordinate of the flow path of the main outlet flow channel 34 in the X direction; C min Represents the minimum position coordinate of the last battery cell group along the X direction; W max,pipe Represents the preset maximum flow channel width; G min Indicates the preset minimum welding width.

[0234] It should be understood that since the coordinates of the flow path of the main outlet flow channel 34 in the Y direction are known coordinates, the computer device can obtain the starting point coordinates of the flow path of the main outlet flow channel 34 when determining the starting point coordinates of the flow path of the main outlet flow channel 34 in the X direction, and can obtain the end point coordinates of the flow path of the main outlet flow channel 34 when determining the end point coordinates of the flow path of the main outlet flow channel 34 in the X direction.

[0235] Of course, the computer device can also determine the starting coordinates of the flow path of the main outlet flow channel 34 through other variations of the above formula (1) or equivalent formulas based on the minimum position coordinates of the last battery cell group along the X direction, the preset maximum flow channel width and the preset minimum welding width.

[0236] In the embodiment of the present application, the center line of the box frame in the Y direction is determined according to the position coordinates of the box frame, and the flow path of the main outlet flow channel is symmetrically set N / 2 times on both sides of the center line parallel to the X direction to obtain the extension direction of the flow path of the main outlet flow channel and the position coordinates of the flow path of the main outlet flow channel in the Y direction. Further, the end point coordinates and the starting point coordinates of the flow path of the main outlet flow channel are determined according to the position coordinates of the first battery cell group and the last battery cell group corresponding to the flow path of the main outlet flow channel along the X direction. It can be seen that the embodiment of the present application realizes that according to the number N of the flow path of the main outlet flow channel, the position coordinates of the battery cell group and the position coordinates of the box frame, the flow path parameters of the main outlet flow channel corresponding to the target battery can be determined in a standardized manner, which is not only conducive to improving the design accuracy of the main outlet flow channel to optimize the thermal performance of the battery, but also conducive to improving the efficiency of flow path planning in the target thermal management device.

[0237] In summary, in the embodiments of the present application, by determining the number N of flow paths of the main outlet flow channel according to the number of battery cell groups in the component parameters, and determining the flow path parameters of the main outlet flow channel corresponding to the target battery according to the number N of flow paths of the main outlet flow channel, the battery cell group position coordinates and the box frame position coordinates in the component parameters, it is achieved that according to the number N of flow paths of the main outlet flow channel, the battery cell group position coordinates and the box frame position coordinates, more accurate flow path parameters of the main outlet flow channel corresponding to the target battery can be determined in a standardized manner, which is not only beneficial to improving the design accuracy of the main outlet flow channel to optimize the thermal performance of the battery, but also beneficial to improving the flow path planning efficiency in the target thermal management device.

[0238] In some embodiments, Figure 6The present invention provides a flow chart of a method for determining the flow path parameters of the flow channel in the target thermal management device in other embodiments of the present invention. In the embodiments of the present invention, the battery assembly includes a battery cell group and a box frame, and the flow channel in the target thermal management device includes a main inlet flow channel. The relevant contents of how to determine the flow path parameters of the main inlet flow channel in the above step S202 are described as an example. Figure 6 As shown, the above step S202 may include the following steps:

[0239] Step S202c, determining the number M of flow paths of the main inlet flow channel according to the number of battery cell groups in the component parameters; wherein M is an integer greater than 0.

[0240] In this step, the computer device can determine the number of flow path paths M of the main inlet flow channel according to the number of battery cell groups in the component parameters of the battery cell group, so that the ability of the main inlet flow channel in the target thermal management device to input the thermal management medium can meet the demand for the thermal management medium required to be input by all battery cell groups in the target battery. Wherein, M can be equal to N.

[0241] It should be noted that the manner in which the computer device determines the number M of flow paths of the main inlet flow channel according to the number of battery cell groups in the component parameters of the battery cell groups can refer to the relevant content of "determining the number N of flow paths of the main outlet flow channel according to the number of battery cell groups in the component parameters of the battery cell groups" in the above-mentioned step S202a, which will not be repeated here.

[0242] Step S202d, according to the number M of flow paths of the main inlet flow channel, the battery cell group position coordinates and the box frame position coordinates in the component parameters, the flow path parameters of the main inlet flow channel corresponding to the target battery are determined according to the preset main inlet flow channel planning strategy.

[0243] In this step, the computer device can determine the flow path parameters of the main inlet flow channel corresponding to the target battery based on the flow path number M of the main inlet flow channel, the battery cell group position coordinates in the component parameters of the battery cell group, and the box frame position coordinates in the component parameters of the box frame.

[0244] Exemplarily, the flow path parameters of the main inlet flow channel in the embodiment of the present application may include but are not limited to at least one of the following: the extension direction of the flow path of the main inlet flow channel, the end point coordinates and the starting point coordinates of the flow path of the main inlet flow channel.

[0245] Exemplarily, the flow channel width of the main inlet flow channel involved in the embodiments of the present application may be a preset maximum flow channel width.

[0246] In one possible implementation, a computer device can input the number of flow paths M of the main inlet flow channel, the battery cell group position coordinates in the component parameters of the battery cell group, and the box frame position coordinates in the component parameters of the box frame into a preset flow channel planning model to obtain the flow path parameters of the main inlet flow channel corresponding to the target battery output by the preset flow channel planning model.

[0247] In another possible implementation, the computer device can determine the flow path parameters of the main inlet flow channel corresponding to the target battery according to the number of flow paths M of the main inlet flow channel, the battery cell group position coordinates in the component parameters of the battery cell group, and the box frame position coordinates in the component parameters of the box frame, according to a preset main inlet flow channel planning strategy.

[0248] Exemplarily, the preset main inlet flow channel planning strategy may refer to a planning strategy for planning a main inlet flow channel path that can meet the preset main inlet flow channel design requirements by combining the battery cell group position coordinates and the box frame position coordinates.

[0249] For ease of understanding, the following embodiments of the present application provide an exemplary introduction and explanation of the above-mentioned content on how to determine the flow path parameters of the main inlet flow channel corresponding to the target battery.

[0250] In some embodiments, Figure 7 A flow chart of a method for determining flow path parameters of a main inlet flow channel provided in some embodiments of the present application, such as Figure 7 As shown, the method of the embodiment of the present application may include the following steps:

[0251] Step S701, determine the center line of the box frame in the Y direction in the XY plane coordinate system according to the position coordinates of the box frame, and set M / 2 flow path paths of the main inlet flow channels symmetrically on both sides of the center line.

[0252] Among them, the distance between the flow path of the main inlet flow channel close to the center line and the flow path of the adjacent main outlet flow channel along the Y direction is the preset reserved space width, and the distance between the end point of the flow path of the main inlet flow channel away from the center line and the adjacent box frame along the Y direction is zero.

[0253] In this step, combine Figure 3 As shown, the computer device can determine the center line 38 of the box frame in the Y direction according to the position coordinates of the box frame, and symmetrically set the flow path of the main inlet flow channel 31 in M / 2 numbers on both sides of the center line 38 based on the center line 38; wherein the distance between the flow path of the main inlet flow channel 31 close to the center line 38 and the flow path of the adjacent main outlet flow channel 34 along the Y direction is the preset reserved space width , and the distance between the end point of the flow path of the main inlet flow channel 31 away from the center line 38 and the adjacent box frame 10 along the Y direction is zero. It should be understood that Figure 3 In the example, M is 4.

[0254] It should be noted that, when a plurality of flow paths of the main inlet flow channels 31 are arranged on either side of the center line 38, the distance between the flow paths of two adjacent main inlet flow channels 31 along the Y direction may be the preset minimum welding width G min , and the distance between the flow paths of two adjacent main inlet flow channels 31 along the X direction can be the preset minimum welding width G min That is, the computer device can determine the starting coordinates of the flow path of the main inlet flow path 31 in the Y direction, and the ending coordinates of the flow path of the main inlet flow path 31 in the Y direction.

[0255] Step S702: for the flow path of each main inlet flow channel, determine the starting point coordinates and the end point coordinates of the flow path of the main inlet flow channel according to the position coordinates of the first battery cell group and the last battery cell group corresponding to the flow path of the main outlet flow channel in the X direction in the XY plane coordinate system.

[0256] In this step, for the flow path of each main inlet flow channel, the computer device can determine the starting point coordinates and the end point coordinates of the flow path of the main inlet flow channel according to the position coordinates of the first battery cell group and the last battery cell group corresponding to the flow path of the main outlet flow channel along the X direction.

[0257] In some embodiments, the computer device can determine the starting coordinates of the flow path of the main inlet flow channel based on the minimum position coordinates of the first battery cell group along the X direction, and determine the end coordinates of the flow path of the main inlet flow channel based on the maximum position coordinates of the last battery cell group along the X direction.

[0258] Exemplarily, for any flow path of the main inlet flow channel 31, combined with Figure 3 As shown, the computer device can use the minimum position coordinates of the first battery cell group corresponding to the flow path of the main inlet flow channel 31 along the X direction as the starting point coordinates of the flow path of the main inlet flow channel 31 in the X direction.

[0259] It should be understood that since the starting coordinates of the flow path of the main inlet flow channel 31 in the Y direction are known coordinates, the computer device can obtain the starting coordinates of the flow path of the main inlet flow channel 31 after determining the starting coordinates of the flow path of the main inlet flow channel 31 in the X direction.

[0260] Furthermore, the computer device may use the maximum position coordinates of the last battery cell group corresponding to the flow path of the main inlet flow channel 31 in the X direction as the end point coordinates of the flow path of the main inlet flow channel 31 in the X direction.

[0261] It should be understood that since the end point coordinates of the flow path of the main inlet flow channel 31 in the Y direction are known coordinates, the computer device can obtain the end point coordinates of the flow path of the main inlet flow channel 31 when determining the end point coordinates of the flow path of the main inlet flow channel 31 in the X direction.

[0262] Step S703: Determine the extension direction of the flow path of the main inlet flow channel according to the starting point coordinates of the flow path of the main inlet flow channel, the end point coordinates of the flow path of the main inlet flow channel and the position coordinates of the box frame.

[0263] In this step, the computer device can determine the extension direction of the flow path of the main inlet flow channel according to the starting point coordinates of the flow path of the main inlet flow channel, the end point coordinates of the flow path of the main inlet flow channel and the box frame position coordinates. The box frame position coordinates can be used to determine the transmission direction of the flow path between the starting point coordinates and the end point coordinates of the flow path of the main inlet flow channel.

[0264] Exemplarily, it is determined that starting from the starting point coordinates of the flow path of the main inlet flow channel, a first preset distance is extended along the X direction, and the distance between the first intermediate position point and the box frame in the X direction is the second preset distance; it is determined that starting from the first intermediate position point, a second intermediate position point is extended along the Y direction of the box frame; wherein the distance between the second intermediate position point and the box frame along the X direction is the third preset distance; starting from the second intermediate position point, the flow path is extended along the Y direction to the box frame along the X direction, and along the X direction to the end point coordinates of the flow path of the main inlet flow channel.

[0265] For ease of understanding, combined Figure 3 As shown, taking the flow path of the main inlet flow channel 31 close to the center line 38 as an example, the computer device can determine the starting point coordinate 31R of the flow path of the main inlet flow channel 31 S Initially, the first preset distance is extended along the X direction, and then extended along the Y direction to a first middle position point P1, wherein the distance between the first middle position point P1 and the box frame in the X direction is a second preset distance.

[0266] Exemplarily, the first preset distance may include but is not limited to the distance between one battery cell and three battery cells along the X direction. For example, the first preset distance may be the distance between one battery cell and three battery cells along the X direction.

[0267] Exemplarily, the second preset distance may include but is not limited to a distance between 1 battery cell and 1.5 battery cells along the Y direction.

[0268] Further, the computer device can determine a second middle position point P2 extending from the first middle position point P1 to the box frame along the Y direction; wherein the distance between the second middle position point P2 and the box frame along the X direction can be a third preset distance. Exemplarily, the distance between the second middle position point P2 and the box frame along the Y direction in the X direction can be the width of the flow channel of one main inlet flow channel 31 and the preset minimum welding width G min The sum of .

[0269] Exemplarily, the third preset distance may include but is not limited to the distance of one battery cell along the Y direction.

[0270] Furthermore, the computer device can start from the second intermediate position point P2, extend along the Y direction to the box frame along the X direction, and extend along the X direction to the end coordinate 31R of the flow path of the main inlet flow channel 31 D .

[0271] It should be noted that, in the case where two flow paths of the main inlet flow channels 31 are provided on either side of the center line 38, the distance along the Y direction between the flow path of the main inlet flow channel 31 away from the center line 38 and the flow path of the main inlet flow channel 31 close to the center line 38 can be the preset minimum welding width G min , and the distance along the X direction can be the preset minimum welding width G min .

[0272] In summary, in the embodiments of the present application, by determining the number M of flow paths of the main inlet flow channel according to the number of battery cell groups in the component parameters, and determining the flow path parameters of the main inlet flow channel corresponding to the target battery according to the number M of flow paths of the main inlet flow channel, the battery cell group position coordinates and the box frame position coordinates in the component parameters, it is achieved that according to the number M of flow paths of the main inlet flow channel, the battery cell group position coordinates and the box frame position coordinates, more accurate flow path parameters of the main inlet flow channel corresponding to the target battery can be determined in a standardized manner, which is not only beneficial to improving the design accuracy of the main inlet flow channel to optimize the thermal performance of the battery, but also beneficial to improving the flow path planning efficiency in the target thermal management device.

[0273] In some embodiments, Figure 8A flow chart of a method for determining the flow path parameters of a flow channel in a target thermal management device provided in other embodiments of the present application. In the embodiments of the present application, a battery assembly includes an inlet of a thermal management medium, an outlet of a thermal management medium, a box frame and fasteners, and the flow channel in the target thermal management device includes an outlet connecting flow channel of the thermal management medium. The relevant contents of how to determine the flow path parameters of the outlet connecting flow channel in the above step S202 are described as an example. Figure 8 As shown, the above step S202 may include the following steps:

[0274] Step S202e, taking the outlet position coordinates of the thermal management medium in the component parameters as the origin of the reference map, converting the cabinet frame position coordinates, the inlet position coordinates of the thermal management medium, the fastener position coordinates, and the end point coordinates of the flow path of the main outlet flow channel in the component parameters to the cabinet frame position coordinates, the inlet position coordinates of the thermal management medium, the fastener position coordinates, and the end point coordinates of the flow path of the main outlet flow channel in the reference map, respectively.

[0275] In this step, the computer device can, according to the outlet connection flow channel planning strategy, take the outlet position coordinates of the thermal management medium in the component parameters of the outlet of the thermal management medium as the origin of the reference map, and convert the box frame position coordinates in the component parameters of the box frame, the inlet position coordinates of the thermal management medium in the component parameters of the outlet of the thermal management medium, the fastener position coordinates in the component parameters of the fastener, and the end point coordinates of the flow path of the main outlet flow channel to the box frame position coordinates in the reference map, the inlet position coordinates of the thermal management medium in the reference map, the fastener position coordinates in the reference map, and the end point coordinates of the flow path of the main outlet flow channel in the reference map. Among them, the preset outlet connection flow channel planning strategy can refer to combining the inlet position coordinates of the thermal management medium, the outlet position coordinates, the box frame position coordinates and the fastener position coordinates, etc., to plan the outlet connection flow channel that can avoid various obstacles to meet the preset outlet connection flow channel design requirements. Obstacles can include but are not limited to any battery components in the target battery that will affect the flow channel design in the thermal management device.

[0276] Exemplarily, the computer device can convert the coordinates of the box frame position in the reference map, the coordinates of the inlet position of the thermal management medium in the reference map, the coordinates of the fastener position in the reference map, and the coordinates of the end point of the flow path of the main outlet flow channel in the reference map by subtracting the coordinates of the box frame position in the XY plane coordinate system where the box frame of the target battery is located from the coordinates of the outlet position of the thermal management medium in the XY plane coordinate system where the box frame of the target battery is located. That is, the computer device converts the coordinates of the positions of each battery component in the X plane coordinate system where the box frame is located into the coordinates of the positions of each battery component in the plane coordinate system of the reference map.

[0277] For example, suppose the outlet position coordinates of the thermal management medium in the XY plane coordinate system where the box frame of the target battery is located are (x exit ,y exit ), and the position coordinates of other battery components in the XY plane coordinate system where the box frame of the target battery is located are (x other ,y other ), the computer device can determine the position coordinates of other battery components in the reference map as ((x other -x exit ), (y other -y exit )).

[0278] Furthermore, in order to improve the subsequent search speed, in an embodiment of the present application, the computer device can also round off the differences between the case frame position coordinates in the XY plane coordinate system where the case frame of the target battery is located, the inlet position coordinates of the thermal management medium, the fastener position coordinates, and the end point coordinates of the flow path of the main outlet flow channel, and the outlet position coordinates of the thermal management medium in the XY plane coordinate system where the case frame of the target battery is located, to obtain the case frame position coordinates in the reference map, the inlet position coordinates of the thermal management medium in the reference map, the fastener position coordinates in the reference map, and the end point coordinates of the flow path of the main outlet flow channel in the reference map.

[0279] For example, suppose the outlet position coordinates of the thermal management medium in the XY plane coordinate system where the box frame of the target battery is located are (x exit ,y exit ), and the position coordinates of other battery components in the XY plane coordinate system where the box frame of the target battery is located are (x other ,y other ), the computer device can determine the position coordinates of other battery components in the reference map as (round (x other -x exit), round(y other -y exit )). Among them, round() represents the rounding operation function.

[0280] In another exemplary embodiment, the computer device may input the coordinates of the box frame position in the XY plane coordinate system where the box frame of the target battery is located, the inlet position coordinates of the thermal management medium, the fastener position coordinates, and the end point coordinates of the flow path of the main outlet flow channel into the preset coordinate conversion model to obtain the coordinates of the box frame position in the reference map, the inlet position coordinates of the thermal management medium in the reference map, the fastener position coordinates in the reference map, and the end point coordinates of the flow path of the main outlet flow channel in the reference map output by the preset coordinate conversion model. The preset coordinate conversion model may include but is not limited to a machine learning model.

[0281] Of course, the computer device can also convert the box frame position coordinates, the inlet position coordinates of the thermal management medium, the fastener position coordinates, and the end point coordinates of the flow path of the main outlet flow channel in the component parameters to the box frame position coordinates, the inlet position coordinates of the thermal management medium, the fastener position coordinates, and the end point coordinates of the flow path of the main outlet flow channel in the reference map in other ways.

[0282] Step S202f, determining a first planned path from the origin of the reference map to the end point coordinates of the flow path of the main outlet flow channel in the reference map according to a preset search algorithm; wherein the first planned path includes a plurality of first planned position points.

[0283] In this step, the computer device can determine the first planned path from the origin of the reference map to the end point coordinates of the flow path of the main outlet flow channel in the reference map according to a preset search algorithm; wherein the first planned path may include multiple first planned position points.

[0284] It should be noted that, in the process of determining the first planned path according to the preset search algorithm, the computer device will use the inlet of the thermal management medium, the fasteners and the existing flow path in the reference map as obstacles, and the box frame as the boundary of the reference map for path planning.

[0285] In a possible implementation, the preset search algorithm may include but is not limited to a preset search algorithm model, and the computer device may obtain the first planned path output by the preset search algorithm model by inputting the origin of the reference map and the end point coordinates of the flow path of the main outlet flow channel in the reference map into the preset search algorithm model. The preset search algorithm model may include but is not limited to a machine learning model.

[0286] In another possible implementation, the preset search algorithm may include but is not limited to any of the following: improved A-star algorithm, Dijkstra algorithm, simulated annealing algorithm (Simulated Annealing), genetic algorithm (Genetic Algorithms). Wherein, in the case where the preset search algorithm includes the improved A-star algorithm, the corresponding reference map may include but is not limited to the A-star map.

[0287] For ease of understanding, in the following embodiments of the present application, a preset search algorithm including an improved A-star algorithm is taken as an example to exemplarily introduce and illustrate the method for determining the first planned path.

[0288] The core of the improved A-star algorithm is to maintain a preset optimization function value F(n) for each position point n in the A-star map, which can represent the estimated cost from the starting point through the position point n to the end point (or the target point). Among them, F(n) = g'(n) + h'(n) + m*t, g'(n) represents the actual moving cost from the starting point to the position point n, h'(n) represents the Manhattan distance from the position point n to the end point, m represents the number of bends, and t represents the bend cost. It should be noted that considering that too many corners will affect the flow channel pressure drop, an additional bend cost t needs to be introduced in the optimization function to reduce corners.

[0289] During the search process of the improved A-star algorithm, the improved A-star algorithm will give priority to expanding the position point with the smallest F(n) value, which helps to efficiently find the shortest path from the starting point to the end point.

[0290] In some embodiments, for each first planned position point, the position point in the reference map that minimizes the value of a preset optimization function is used as the next first planned position point adjacent to the first planned position point according to a preset search step size; based on each first planned position point, a first planned path is obtained.

[0291] Exemplarily, the preset search step length may include but is not limited to 1 mm; of course, the preset search step length may be dynamically adjusted according to demand.

[0292] In an embodiment of the present application, for the starting position point (i.e., the first first planning position point, such as the outlet position coordinates of the thermal management medium), the computer device can use the position point in the reference map that makes the preset optimization function take the minimum value as the next first planning position point adjacent to the first first planning position point (i.e., the second first planning position point) according to the preset search step size. Furthermore, for the second first planning position point, the computer device can use the position point in the reference map that makes the preset optimization function take the minimum value as the next first planning position point adjacent to the second first planning position point (i.e., the third first planning position point) according to the preset search step size, and so on, until the next first planning position point is the target end point (e.g., the end point coordinates of the flow path of the main outlet flow channel). It should be noted that for the first planning position point that has been determined, the computer device will not repeatedly calculate the preset optimization function value corresponding to the first planning position point in the subsequent search process.

[0293] For example, the computer device may add the origin of the reference map (i.e., the starting position point, such as the exit position coordinates of the thermal management medium) to the start list, and add the four surrounding position points adjacent to the origin of the reference map to the start list. Furthermore, the computer device may transfer the origin of the reference map from the start list to the closed list, and select the position point that minimizes the value of the preset optimization function from the start list as the next first planning position point, ..., and so on, until the next first planning position point is the target end point.

[0294] Of course, the computer device may also determine the first planned path from the origin of the reference map to the end point coordinates of the flow path of the main outlet flow channel in the reference map in other ways according to the preset search algorithm.

[0295] Step S202g: determining the flow path parameters of the outlet connection flow channel of the thermal management medium according to the first planned path.

[0296] It should be understood that the first planned path obtained in the above step S202f is a planned path in the plane coordinate system of the reference map.

[0297] In this step, the computer device may determine the flow path parameters of the outlet connection flow channel of the thermal management medium in the XY plane coordinate system according to the first planned path in the plane coordinate system of the reference map.

[0298] Exemplarily, the flow path parameters of the outlet connecting flow channel in the embodiments of the present application may include but are not limited to at least one of the following: the extension direction of the flow path of the outlet connecting flow channel, the end point coordinates, the starting point coordinates, and the bending point coordinates of the flow path of the outlet connecting flow channel.

[0299] Illustratively, the flow channel width of the outlet connecting flow channel involved in the embodiments of the present application may be a preset maximum flow channel width.

[0300] In some embodiments, the first planned path is converted into a first planned path in the XY plane coordinate system where the box frame of the target battery is located; if the end point coordinates of the first planned path in the XY plane coordinate system match the end point coordinates of the flow path of the main outlet flow channel, the first planned path in the XY plane coordinate system is used as the flow path of the outlet connecting flow channel of the thermal management medium.

[0301] In the embodiment of the present application, the computer device can convert the first planned path into the first planned path in the XY plane coordinate system according to the conversion relationship between the plane coordinate system of the reference map and the XY plane coordinate system where the box frame of the target battery is located.

[0302] Exemplarily, the computer device may obtain the first planned path in the XY plane coordinate system by adding the position coordinates of each first planned position point in the first planned path to the outlet position coordinates of the thermal management medium in the XY plane coordinate system where the box frame is located.

[0303] Furthermore, if the endpoint coordinates of the first planned path in the XY plane coordinate system match the endpoint coordinates of the flow path of the main outlet flow channel in the XY plane coordinate system where the box frame is located, the computer device can use the first planned path in the XY plane coordinate system as the flow path of the outlet connecting flow channel of the thermal management medium.

[0304] In the embodiment of the present application, the computer device can obtain the extension direction, end point coordinates, starting point coordinates and bending point coordinates of the flow path of the outlet connection flow channel of the thermal management medium based on the position coordinates corresponding to multiple first planned position points in the first planned path in the XY plane coordinate system.

[0305] Exemplarily, the computer device may use the position coordinates of the first first planned position point among the plurality of first planned position points in the first planned path in the XY plane coordinate system as the starting point coordinates of the flow path of the outlet connecting the flow channel of the thermal management medium.

[0306] Exemplarily, the computer device may use the position coordinates of the last first planned position point among the multiple first planned position points in the first planned path in the XY plane coordinate system as the end point coordinates of the flow path of the outlet connection flow channel of the thermal management medium.

[0307] Exemplarily, a computer device can obtain the extension direction of the flow path of the outlet connecting flow channel by connecting the position coordinates corresponding to multiple first planned position points in the first planned path in the XY plane coordinate system, and use the starting point coordinates of each sub-path segment in the same direction and the end point coordinates of each sub-path segment in the same direction as the bending point coordinates.

[0308] Considering that an error smaller than the step size may occur in the pathfinding process based on the grid map, but due to the high accuracy requirements of subsequent digital modeling, the error needs to be adjusted.

[0309] Furthermore, if the end point coordinates of the first planned path in the XY plane coordinate system do not match the end point coordinates of the flow path of the main outlet flow channel, the computer device can adjust the first planned path in the XY plane coordinate system according to the deviation distance between the end point coordinates of the first planned path in the XY plane coordinate system and the end point coordinates of the flow path of the main outlet flow channel to obtain the adjusted first planned path in the XY plane coordinate system, and use the adjusted first planned path in the XY plane coordinate system as the flow path of the outlet connecting flow channel of the thermal management medium.

[0310] In an embodiment of the present application, if the endpoint coordinates of the first planned path in the XY plane coordinate system do not match the endpoint coordinates of the flow path of the main outlet flow channel, the computer device can make corresponding adjustments to the position coordinates of multiple first planned position points in the first planned path in the XY plane coordinate system according to the deviation distance between the endpoint coordinates of the first planned path in the XY plane coordinate system and the endpoint coordinates of the flow path of the main outlet flow channel, so as to obtain the adjusted first planned path in the XY plane coordinate system, so that the endpoint coordinates of the first planned path in the adjusted XY plane coordinate system match the endpoint coordinates of the flow path of the main outlet flow channel.

[0311] In summary, in the embodiment of the present application, the position coordinates of the box frame, the inlet position coordinates of the thermal management medium, the fastener position coordinates, and the end point coordinates of the flow path of the main outlet flow channel in the XY plane coordinate system where the box frame is located are respectively converted to the position coordinates of the box frame, the inlet position coordinates of the thermal management medium, the fastener position coordinates, and the end point coordinates of the flow path of the main outlet flow channel in the plane coordinate system of the reference map. Further, a first planned path from the origin of the reference map to the end point coordinates of the flow path of the main outlet flow channel in the reference map is determined according to a preset search algorithm, and the flow path parameters of the outlet connection flow channel of the thermal management medium are determined according to the first planned path. It can be seen that the embodiment of the present application realizes that according to the position coordinates of the box frame, the inlet position coordinates of the thermal management medium, the fastener position coordinates and the end point coordinates of the flow path of the main outlet flow channel, the flow path parameters of the outlet connecting flow channel of the thermal management medium that can avoid different obstacles can be determined in a standardized manner according to the preset search algorithm, which is beneficial for the flow path parameters of the outlet connecting flow channel to better meet the flow channel design requirements, thereby not only helping to improve the design accuracy of the outlet connecting flow channel to optimize the thermal performance of the battery, but also helping to improve the flow path planning efficiency in the target thermal management device.

[0312] In some embodiments, Fig. 9 A flow chart of a method for determining the flow path parameters of a flow channel in a target thermal management device provided in other embodiments of the present application. In the embodiments of the present application, a battery assembly includes an inlet of a thermal management medium, an outlet of a thermal management medium, a box frame and fasteners, and the flow channel in the target thermal management device includes an inlet connecting the thermal management medium. The flow path parameters of the inlet connecting the flow channel in the above step S202 are described as an example. Fig. 9 As shown, the above step S202 may include the following steps:

[0313] Step S202h, taking the inlet position coordinates of the thermal management medium in the component parameters as the origin of the reference map, converting the cabinet frame position coordinates, the outlet position coordinates of the thermal management medium, the fastener position coordinates, and the starting point coordinates of the flow path of the main inlet flow channel in the component parameters to the cabinet frame position coordinates, the outlet position coordinates of the thermal management medium, the fastener position coordinates, and the starting point coordinates of the flow path of the main inlet flow channel in the reference map, respectively.

[0314] In this step, the computer device can, according to the preset inlet connection flow channel planning strategy, take the inlet position coordinates of the heat management medium in the component parameters of the outlet of the heat management medium as the origin of the reference map, and convert the box frame position coordinates in the component parameters of the box frame, the outlet position coordinates of the heat management medium in the component parameters of the outlet of the heat management medium, the fastener position coordinates in the component parameters of the fastener, and the starting point coordinates of the flow path of the main inlet flow channel to the box frame position coordinates, the outlet position coordinates of the heat management medium, the fastener position coordinates, and the starting point coordinates of the flow path of the main inlet flow channel in the reference map, respectively. That is, the computer device converts the position coordinates of each battery component in the X-plane coordinate system where the box frame is located to the position coordinates of each battery component in the plane coordinate system of the reference map.

[0315] Among them, the preset inlet connection flow channel planning strategy may refer to a planning strategy that combines the inlet position coordinates, outlet position coordinates, box frame position coordinates and fastener position coordinates of the thermal management medium to plan an inlet connection flow channel that can avoid various obstacles to meet the preset inlet connection flow channel design requirements.

[0316] It should be noted that, in the embodiment of the present application, the way in which the computer device performs coordinate conversion on the position coordinates of each battery component can refer to the relevant content in the above-mentioned step S202e, which will not be repeated here.

[0317] Step S202i, determining a second planned path from the origin of the reference map to the starting coordinates of the flow path of the main inlet flow channel in the reference map according to a preset search algorithm; wherein the second planned path includes a plurality of second planned position points.

[0318] In this step, the computer device can determine the second planned path from the origin of the reference map to the starting coordinates of the flow path of the main inlet flow channel in the reference map according to a preset search algorithm; wherein the second planned path includes multiple second planned position points.

[0319] It should be noted that, in the process of determining the second planned path according to the preset search algorithm, the computer device will use the outlet of the thermal management medium, the fasteners and the existing flow path in the reference map as obstacles, and the box frame as the boundary of the reference map for path planning.

[0320] In one possible implementation, the preset search algorithm may include but is not limited to a preset search algorithm model. The computer device may obtain a second planned path output by the preset search algorithm model by inputting the origin of the reference map and the starting coordinates of the flow path of the main inlet flow channel in the reference map into the preset search algorithm model.

[0321] In another possible implementation, the preset search algorithm may include but is not limited to any one of the following: an improved A-star algorithm, a Dijkstra algorithm, a simulated annealing algorithm, and a genetic algorithm.

[0322] In some embodiments, for each second planned position point, the position point in the reference map that minimizes the value of a preset optimization function is used as the next second planned position point adjacent to the second planned position point according to a preset search step; and a second planned path is obtained based on each second planned position point.

[0323] In an embodiment of the present application, for the starting position point (i.e., the first second planning position point, such as the inlet position coordinates of the thermal management medium), the computer device can use the position point in the reference map that makes the preset optimization function take the minimum value as the next second planning position point adjacent to the first second planning position point (i.e., the second second planning position point) according to the preset search step size. Furthermore, for the second second planning position point, the computer device can use the position point in the reference map that makes the preset optimization function take the minimum value as the next second planning position point adjacent to the second second planning position point (i.e., the third second planning position point) according to the preset search step size, and so on, until the next second planning position point is the target end point (e.g., the starting coordinates of the flow path of the main inlet flow channel). It should be noted that for the second planning position point that has been determined, the computer device will not repeatedly calculate the preset optimization function value corresponding to the second planning position point in the subsequent search process.

[0324] Of course, the computer device may also determine the second planned path from the origin of the reference map to the starting point coordinates of the flow path of the main inlet flow channel in the reference map in other ways according to the preset search algorithm.

[0325] Step S202j: determining the flow path parameters of the inlet connection flow channel of the thermal management medium according to the second planned path.

[0326] It should be understood that the second planned path obtained in the above step S202i is a planned path in the plane coordinate system of the reference map.

[0327] In this step, the computer device may determine the flow path parameters of the inlet connection flow channel of the thermal management medium in the XY plane coordinate system according to the second planned path in the plane coordinate system of the reference map.

[0328] Exemplarily, the flow path parameters of the inlet connecting flow channel in the embodiment of the present application may include but are not limited to at least one of the following: the extension direction of the flow path of the inlet connecting flow channel, the end point coordinates, the starting point coordinates, and the bending point coordinates of the flow path of the inlet connecting flow channel.

[0329] Illustratively, the flow channel width of the inlet connecting flow channel involved in the embodiments of the present application may be a preset maximum flow channel width.

[0330] In some embodiments, the second planned path is converted into a second planned path in the XY plane coordinate system where the box frame of the target battery is located; if the starting point coordinates of the second planned path in the XY plane coordinate system match the starting point coordinates of the flow path of the main inlet flow channel, the second planned path in the XY plane coordinate system is used as the flow path of the inlet connecting flow channel of the thermal management medium.

[0331] In the embodiment of the present application, the computer device can convert the second planned path into the second planned path in the XY plane coordinate system according to the conversion relationship between the plane coordinate system of the reference map and the XY plane coordinate system where the box frame of the target battery is located.

[0332] Exemplarily, the computer device may obtain the second planned path in the XY plane coordinate system by adding the position coordinates of each second planned position point in the second planned path to the inlet position coordinates of the thermal management medium in the XY plane coordinate system where the box frame is located.

[0333] Furthermore, if the end point coordinates of the second planned path in the XY plane coordinate system match the starting point coordinates of the flow path of the main inlet flow channel in the XY plane coordinate system where the box frame is located, the computer device can use the second planned path in the XY plane coordinate system as the flow path of the inlet connecting flow channel of the thermal management medium.

[0334] In the embodiment of the present application, the computer device can obtain the extension direction, end point coordinates, starting point coordinates and bending point coordinates of the flow path of the inlet connecting flow channel of the thermal management medium according to the position coordinates of multiple second planned position points in the second planned path in the XY plane coordinate system.

[0335] Exemplarily, the computer device may use the position coordinates of the first second planned position point in the second planned path in the XY plane coordinate system as the starting point coordinates of the flow path of the inlet connecting the flow channel of the thermal management medium.

[0336] Exemplarily, the computer device may use the position coordinates of the last second planned position point in the second planned path in the XY plane coordinate system as the end point coordinates of the flow path of the inlet connecting the flow channel of the thermal management medium.

[0337] Exemplarily, a computer device can obtain the extension direction of the flow path of the inlet connecting flow channel by connecting the position coordinates of multiple second planned position points in the second planned path in the XY plane coordinate system, and use the starting point coordinates of each sub-path segment in the same direction and the end point coordinates of each sub-path segment in the same direction as the bending point coordinates.

[0338] Furthermore, if the end point coordinates of the second planned path in the XY plane coordinate system do not match the starting point coordinates of the flow path of the main inlet flow channel, the computer device can adjust the second planned path in the XY plane coordinate system according to the deviation distance between the starting point coordinates of the second planned path in the XY plane coordinate system and the starting point coordinates of the flow path of the main inlet flow channel to obtain the adjusted second planned path in the XY plane coordinate system, and use the adjusted second planned path in the XY plane coordinate system as the flow path of the inlet connecting flow channel of the thermal management medium.

[0339] In an embodiment of the present application, if the end point coordinates of the second planned path in the XY plane coordinate system do not match the starting point coordinates of the flow path of the main inlet flow channel, the computer device can make corresponding adjustments to the position coordinates of multiple second planned position points in the second planned path in the XY plane coordinate system according to the deviation distance between the starting point coordinates of the second planned path in the XY plane coordinate system and the starting point coordinates of the flow path of the main inlet flow channel, so as to obtain the adjusted second planned path in the XY plane coordinate system, so that the end point coordinates of the second planned path in the adjusted XY plane coordinate system match the starting point coordinates of the flow path of the main inlet flow channel.

[0340] In summary, in the embodiment of the present application, the box frame position coordinates, the outlet position coordinates of the thermal management medium, the fastener position coordinates, and the starting coordinates of the flow path of the main inlet flow channel in the XY plane coordinate system where the box frame is located are respectively converted to the box frame position coordinates, the outlet position coordinates of the thermal management medium, the fastener position coordinates, and the starting coordinates of the flow path of the main inlet flow channel in the plane coordinate system of the reference map. Further, a second planning path from the origin of the reference map to the starting coordinates of the flow path of the main inlet flow channel in the reference map is determined according to a preset search algorithm, and the flow path parameters of the inlet connection flow channel of the thermal management medium are determined according to the second planning path. It can be seen that the embodiment of the present application realizes that according to the position coordinates of the box frame, the outlet position coordinates of the thermal management medium, the fastener position coordinates and the starting point coordinates of the flow path of the main inlet flow channel, the flow path parameters of the inlet connecting flow channel of the thermal management medium that can avoid different obstacles can be determined in a standardized manner according to the preset search algorithm, which is beneficial for the flow path parameters of the inlet connecting flow channel to better meet the flow channel design requirements, thereby not only helping to improve the design accuracy of the inlet connecting flow channel to optimize the thermal performance of the battery, but also helping to improve the flow path planning efficiency in the target thermal management device.

[0341] In some embodiments, Fig.10The present invention provides a flow chart of a method for determining the flow path parameters of the flow channel in the target thermal management device in other embodiments of the present invention. In the embodiments of the present invention, the battery assembly includes a battery cell group, and the flow channel in the target thermal management device includes the flow channel in the battery cell group. The flow path parameters of the flow channel in the battery cell group are described as an example. Fig.10 As shown, the above step S202 may include the following steps:

[0342] Step S202k, for each battery cell group, determine the actual cooling width of the module area corresponding to the battery cell group in the Y direction along the XY plane coordinates of the box frame of the target battery according to the flow path parameters of the main inlet flow channel, the flow path parameters of the main outlet flow channel and the position coordinates of the battery cell group in the assembly parameters.

[0343] In this step, for each battery cell group, the computer device can determine the actual cooling width of the module area corresponding to the battery cell group in the Y direction of the XY plane coordinates where the box frame of the target battery is located based on the flow path parameters of the main inlet flow channel, the flow path parameters of the main outlet flow channel and the position coordinates of the battery cell group in the component parameters of the battery cell group.

[0344] In some embodiments, the computer device can determine whether the module area corresponding to the battery cell group includes the main inlet flow channel path and / or the main outlet flow channel path based on the flow channel path parameters of the main inlet flow channel, the flow channel path parameters of the main outlet flow channel and the position coordinates of the battery cell group.

[0345] Exemplarily, a computer device can determine whether the module area corresponding to the battery cell group includes the main inlet flow channel path and / or the main outlet flow channel path by comparing the extension direction of the flow channel path of the main inlet flow channel, the extension direction of the flow channel path of the main outlet flow channel, and the module area between the maximum position coordinate and the minimum position coordinate of the battery cell group along the Y direction.

[0346] In one possible implementation, if the module area corresponding to the battery cell group does not include the main inlet flow path and the main outlet flow path, the computer device can use the difference between the maximum position coordinate and the minimum position coordinate of the battery cell group along the Y direction as the actual cooling width.

[0347] In another possible implementation, if the module area corresponding to the battery cell group includes a main inlet flow path or a main outlet flow path, the computer device can determine the actual cooling width based on the difference between the maximum position coordinate and the minimum position coordinate of the battery cell group along the Y direction, and the distance along the Y direction of the main flow path area corresponding to the main inlet flow path or the main outlet flow path.

[0348] Exemplarily, if the module area corresponding to the battery cell group includes at least one main inlet flow channel path, the computer device can obtain the actual cooling width by subtracting the difference between the maximum position coordinate and the minimum position coordinate of the battery cell group along the Y direction from the distance of the main inlet flow channel path area corresponding to at least one main inlet flow channel path along the Y direction. The distance of the main inlet flow channel path area along the Y direction can be equal to: the flow channel width of the main inlet flow channel path * the number of at least one main inlet flow channel path T1 + (number T1-1) * the preset minimum welding width, where T1 is an integer greater than or equal to 1.

[0349] In another exemplary embodiment, if the module area corresponding to the battery cell group includes at least one main outlet flow channel path, the computer device can obtain the actual cooling width by subtracting the difference between the maximum position coordinate and the minimum position coordinate of the battery cell group along the Y direction from the distance of the main outlet flow channel path area corresponding to at least one main outlet flow channel path along the Y direction. The distance of the main outlet flow channel path area along the Y direction can be equal to: the flow channel width of the main outlet flow channel path * the number of at least one main outlet flow channel path T1 + (number T1-1) * the preset minimum welding width, where T1 is an integer greater than or equal to 1.

[0350] Step S2021, determining the maximum number of flow channel paths in the battery cell group according to the actual cooling width, the preset minimum welding width, the preset maximum flow channel width and the preset minimum flow channel width.

[0351] In this step, the computer device can determine the maximum number of flow channel paths in the battery cell group based on the preset battery cell group flow channel planning strategy according to the actual cooling width, the preset minimum welding width, the preset maximum flow channel width and the preset minimum flow channel width.

[0352] In a possible implementation, the computer device may input the actual cooling width, the preset minimum welding width, the preset maximum flow channel width and the preset minimum flow channel width into the preset path number determination model to obtain the maximum number of flow channel paths in the battery cell group output by the preset path number determination model. The preset path number determination model may include but is not limited to a machine learning model.

[0353] In another possible implementation, the computer device may obtain the maximum number of flow path paths in the battery cell group by performing preset data processing on the actual cooling width, the preset minimum welding width, the preset maximum flow channel width and the preset minimum flow channel width.

[0354] Exemplarily, the computer device determines the remaining width based on the actual cooling width, the preset maximum flow channel width and the preset minimum welding width.

[0355] For example, the computer device can determine the remaining width by the following formula (2) based on the actual cooling width, the preset maximum flow channel width and the preset minimum welding width.

[0356] W r =fmod(W module +G min , W max,pipe + G min ) Formula (2)

[0357] Among them, W r Represents the remaining width; fmod() represents the floating point modulus function; W module Represents the actual cooling width.

[0358] Of course, the computer device can also determine the remaining width through other variations of the above formula (2) or equivalent formulas according to the actual cooling width, the preset maximum flow channel width and the preset minimum flow channel width.

[0359] Further, the computer device can determine the remaining width W r Is it less than the preset minimum welding width G? min With the preset minimum flow channel width W min,pipe The sum of .

[0360] In one possible implementation, if the remaining width W r Smaller than the preset minimum welding width G min With the preset minimum flow channel width W min,pipe The computer device can determine the maximum number of flow channel paths in the battery cell group according to the actual cooling width, the preset maximum flow channel width and the preset minimum welding width.

[0361] For example, the computer device can determine the maximum number of flow path paths in the battery cell group according to the actual cooling width, the preset maximum flow path width and the preset minimum welding width through the following formula (3).

[0362] N pipe =(W module +G min ) / (W max,pipe +G min ) Formula (3)

[0363] Of course, the computer device can also determine the maximum number of flow path paths in the battery cell group through other variations of the above formula (3) or equivalent formulas according to the actual cooling width, the preset maximum flow path width and the preset minimum welding width.

[0364] In another possible implementation, if the remaining width W r Not less than the preset minimum welding width Gmin With the preset minimum flow channel width W min,pipe The computer device can determine the maximum number of flow channel paths in the battery cell group according to the actual cooling width, the preset maximum flow channel width and the preset minimum welding width.

[0365] For example, the computer device can determine the maximum number of flow channel paths in the battery cell group according to the actual cooling width, the preset maximum flow channel width and the preset minimum welding width through the following formula (4).

[0366] N pipe =(W module +G min ) / (W max,pipe +G min )+1 formula (4)

[0367] Among them, N pipe Represents the maximum number of flow paths within the battery cell group.

[0368] Of course, the computer device can also determine the maximum number of flow path paths in the battery cell group through other variations of the above formula (4) or equivalent formulas according to the actual cooling width, the preset maximum flow path width and the preset minimum welding width.

[0369] Of course, the computer device may also determine the maximum number of flow path paths within the battery cell group in other ways according to the actual cooling width, the preset minimum welding width, the preset maximum flow path width and the preset minimum flow path width.

[0370] Step S202m: determining the actual flow channel width of the flow channel path in the battery cell group and the actual welding width between the flow channel paths according to the actual cooling width and the maximum number.

[0371] In this step, the computer device determines the actual flow channel width of the flow channel path in the battery cell group according to the actual cooling width and the maximum number based on a preset flow channel planning strategy in the battery cell group.

[0372] Exemplarily, the computer device determines the actual flow channel width of the flow channel path within the battery cell group according to the actual cooling width, the preset minimum welding width, the preset maximum flow channel width and the maximum number.

[0373] For example, the computer device can determine the actual flow channel width of the flow channel path in the battery cell group according to the actual cooling width, the preset minimum welding width, the preset maximum flow channel width and the maximum number by the following formula (5).

[0374] W pipe =min((W module -(G min* N pipe -1)) / N pipe , W max,pipe ) Formula (5)

[0375] Among them, W pipe Represents the actual flow channel width of the flow channel path within the battery cell group.

[0376] Of course, the computer device can also determine the actual flow channel width of the flow channel path in the battery cell group through other variations of the above formula (5) or equivalent formulas based on the actual cooling width, the preset minimum welding width, the preset maximum flow channel width and the maximum number.

[0377] Further, the computer device may determine the actual welding width between the flow channel paths within the battery cell group according to the actual cooling width, the maximum number and the actual flow channel width.

[0378] For example, the computer device can determine the actual welding width between the flow channel paths in the battery cell group according to the actual cooling width, the maximum number and the actual flow channel width through the following formula (6).

[0379] G module =(W module -N pipe *W pipe ) / (N pipe -1) Formula (6)

[0380] Among them, G module Represents the actual weld width.

[0381] Of course, the computer device can also determine the actual welding width between the flow path paths in the battery cell group through other variations of the above formula (6) or equivalent formulas according to the actual cooling width, the maximum number and the actual flow path width.

[0382] Of course, the computer device may also determine the actual flow channel width of the flow channel path within the battery cell group and the actual welding width between the flow channel paths in other ways according to the actual cooling width and the maximum number.

[0383] It should be noted that the extension direction of the flow path in each battery cell group in the embodiment of the present application may be in a preset extension direction. Exemplarily, the preset extension direction may include but is not limited to an S-shaped extension direction or a U-shaped extension direction.

[0384] It should be understood that when the computer device determines the maximum number of flow paths within each battery cell group, the actual flow path width and the actual welding width between the flow paths, since the extension direction of the flow paths within each battery cell group is known, the computer device can obtain the flow path parameters of the flow paths within each battery cell group.

[0385] Exemplarily, the flow path parameters of the flow path within the battery cell group may include but are not limited to at least one of the following: the extension direction of the flow path within the battery cell group, the end point coordinates, the starting point coordinates, the bending point coordinates, the actual flow path width, and the actual welding width between the flow paths.

[0386] In the embodiment of the present application, the computer device can evenly deploy the flow channels in the battery cell group in the above manner, and can maximize the flow channel area coverage. In actual use, the computer device can use this as a reference to calculate the ratio of the actual flow channel coverage area to the battery cell group area as a reference density, and adjust the flow channel density in different battery cell groups to adjust the thermal performance of different battery cell groups.

[0387] In some embodiments, the computer device can determine the adjusted actual flow channel coverage area according to the adjusted flow channel density and the reference density. Further, the computer device can determine the maximum number of flow channel paths in the adjusted battery cell group according to the adjusted actual flow channel coverage area, so that the adjusted actual flow channel width and the adjusted actual welding width can be determined according to the maximum number of flow channel paths in the adjusted battery cell group, thereby obtaining the flow channel path parameters of the flow channel paths in the adjusted battery cell group.

[0388] In summary, in the embodiment of the present application, for each battery cell group, the actual cooling width of the module area corresponding to the battery cell group along the Y direction is determined according to the flow path parameters of the main inlet flow channel, the flow path parameters of the main outlet flow channel and the position coordinates of the battery cell group in the assembly parameters, and the maximum number of flow paths in the battery cell group is determined according to the actual cooling width, the preset minimum welding width, the preset maximum flow channel width and the preset minimum flow channel width. Further, according to the actual cooling width and the maximum number, the actual flow channel width of the flow path in the battery cell group and the actual welding width between the flow paths are determined. It can be seen that the embodiment of the present application realizes that according to the flow path parameters of the main inlet flow channel, the flow path parameters of the main outlet flow channel and the position coordinates of the battery cell group in the assembly parameters, etc., the flow path parameters of the flow path in the battery cell group can be standardized to determine more accurate flow path parameters, which is not only conducive to improving the design accuracy of the flow channel in the battery cell group to optimize the thermal performance of the battery, but also conducive to improving the efficiency of flow path planning in the target thermal management device.

[0389] In some embodiments, Fig.11 The present invention provides a flow chart of a method for determining the flow path parameters of the flow channel in the target thermal management device in other embodiments of the present invention. In the embodiments of the present invention, the battery assembly includes a battery cell group and a box frame, and the flow channel in the target thermal management device includes a flow channel connecting the battery cell groups. The flow path parameters of the flow channel connecting the battery cell groups in the above step S202 are described as an example. Fig.11 As shown, the above step S202 may include the following steps:

[0390] Step S202n: determine the gap area between the battery cell groups in the Y direction of the XY plane coordinate system where the box frame of the target battery is located according to the battery cell group position coordinates in the component parameters.

[0391] In this step, combine Figure 3 As shown, the computer device can determine the gap area A between each battery cell group in the Y direction of the XY plane coordinate system where the box frame of the target battery is located according to the battery cell group position coordinates in the assembly parameters of the battery cell group. Gap .

[0392] Step S202o: For each gap region, obtain flow path parameters of the flow channels within the battery cell groups of two battery cell groups adjacent to the gap region.

[0393] In this step, for each gap region, the computer device can obtain the flow path parameters of the flow channels in the battery cell groups of two adjacent battery cell groups in the gap region, so as to determine the flow path parameters of the edge flow channels along the Y direction in the battery cell groups of the two battery cell groups.

[0394] Step S202p, determining the flow path parameters of the inter-battery cell group connecting flow channel between the two battery cell groups according to the flow path parameters of the intra-battery cell group flow channels of the two battery cell groups.

[0395] In this step, the computer device may determine the flow path parameters of the inter-cell connection flow channels between the two battery cell groups based on the preset inter-cell connection flow channel planning strategy according to the flow path parameters of the intra-cell flow channels of the two battery cell groups.

[0396] Exemplarily, the preset inter-battery cell group connection flow channel planning strategy may refer to a planning strategy for the inter-battery cell group connection flow channel paths that combines the flow channel path parameters of the intra-battery cell group flows of two adjacent battery cell groups to plan a preset inter-battery cell group connection flow channel design requirement.

[0397] In some embodiments, the computer device may determine the flow path parameters of the edge flow channels along the Y direction within the battery cell groups of the two battery cell groups according to the flow path parameters of the flow channels within the battery cell groups of the two battery cell groups.

[0398] Exemplarily, for each of the two battery cell groups, the computer device may determine the flow path parameters of the edge flow channel in the battery cell group along the Y direction according to the flow path parameters of the flow channel in the battery cell group of the battery cell group. The flow path parameters of the edge flow channel may include but are not limited to at least one of the following: the end point coordinates, the starting point coordinates, the actual flow channel width, and the actual welding width between the flow channel paths of the edge flow channel.

[0399] Further, the computer device may determine the flow path parameters of the inter-battery cell group connecting flow channel between the two battery cell groups according to the flow path parameters of the edge flow channels along the Y direction within the battery cell groups of the two battery cell groups.

[0400] Exemplarily, the computer device may use the end point coordinates of the flow path of the edge flow path along the Y direction within one of the two battery cell groups as the start point coordinates of the flow path of the inter-battery cell group connecting flow path between the two battery cell groups.

[0401] Exemplarily, the computer device may use the starting coordinates of the flow path of the edge flow path along the Y direction within the battery cell group of the other battery cell group of the two battery cell groups as the end coordinates of the flow path of the inter-battery cell group connecting flow path between the two battery cell groups.

[0402] Exemplarily, the computer device may use the actual channel width of the channel path of the edge channel along the Y direction within the battery cell groups of the two battery cell groups as the actual channel width of the channel path of the inter-battery cell group connecting channel between the two battery cell groups.

[0403] Exemplarily, the computer device may use the actual welding width between the channel paths of the edge channels along the Y direction within the battery cell groups of the two battery cell groups as the actual welding width between the channel paths of the inter-battery cell group connecting channels between the two battery cell groups.

[0404] Of course, the computer device may also determine the flow path parameters of the inter-battery cell group connecting flow channel between the two battery cell groups in other ways based on the flow path parameters of the intra-battery cell group flow channels of the two battery cell groups.

[0405] In summary, in the embodiment of the present application, the gap area between each battery cell group in the Y direction in the XY plane coordinate system where the box frame of the target battery is located is determined according to the battery cell group position coordinates in the component parameters; further, for each gap area, the flow path parameters of the battery cell group flow channel of the two battery cell groups adjacent to the gap area are obtained to determine the flow path parameters of the battery cell group connecting flow channel between the two battery cell groups. It can be seen that the embodiment of the present application realizes that the flow path parameters of the battery cell group connecting flow channel between the two battery cell groups can be determined in a standardized manner according to the flow path parameters of the battery cell group flow channel of the two battery cell groups adjacent to each gap area, which is not only conducive to improving the design accuracy of the battery cell group connecting flow channel to optimize the battery thermal performance, but also conducive to improving the flow path planning efficiency in the target thermal management device.

[0406] In some embodiments, Fig.12 This is a flow chart of a method for determining a digital model of a target thermal management device provided in some embodiments of the present application. The present application embodiment provides an exemplary introduction to the content of how to determine the digital model of the target thermal management device in the above step S203. Fig.12 , the above step S203 may include the following steps:

[0407] Step S2031: construct a first thermal management device digital model and a second thermal management device digital model according to the box frame size in the component parameters.

[0408] In this step, the computer device can construct the digital model of the first thermal management device and the digital model of the second thermal management device based on the preset three-dimensional modeling software according to the box frame size in the component parameters of the box frame.

[0409] In a possible implementation, the computer device can directly construct the digital model of the first thermal management device and the digital model of the second thermal management device based on the preset three-dimensional modeling software according to the size of the box frame. The digital model of the first thermal management device and the digital model of the second thermal management device can be stacked, and the digital model of the first thermal management device is set on top of the digital model of the second thermal management device.

[0410] Exemplarily, when the thermal management device is a water-cooling plate, the digital model of the first thermal management device may be a digital model of an upper water-cooling plate, and the digital model of the second thermal management device may be a digital model of a lower water-cooling plate.

[0411] In another possible implementation, the computer device can construct a first thermal management device sketch and a second thermal management device sketch based on the preset three-dimensional modeling software according to the size of the box frame. Furthermore, the computer device can perform a first stretching boss operation along the normal vector of the first thermal management device sketch based on the preset three-dimensional modeling software to obtain the first thermal management device digital model, and perform a second stretching boss operation along the normal vector of the second thermal management device sketch to obtain the second thermal management device digital model. Among them, the pulling direction of the first pulling boss operation is opposite to the pulling direction of the second pulling boss operation, and the pulling length corresponding to each pulling boss operation can be equal to the thickness of the stretched thermal management device.

[0412] Of course, the computer device can also construct the digital model of the first thermal management device and the digital model of the second thermal management device in other ways according to the box frame size in the component parameters of the box frame.

[0413] Step S2032: using the digital model of the second thermal management device as a reference plane, drawing all flow paths corresponding to the target battery in the digital model of the second thermal management device according to the flow path parameters, and obtaining the digital model of the first intermediate thermal management device.

[0414] In this step, the computer device can use the digital model of the second thermal management device as the reference plane, and draw all the flow paths corresponding to the target battery in the digital model of the second thermal management device based on the preset three-dimensional modeling software according to the flow path parameters in the target thermal management device determined in the above step S202, to obtain the digital model of the first intermediate thermal management device. The digital model of the first intermediate thermal management device may include but is not limited to the digital model of the first thermal management device and the digital model of the second thermal management device with all the flow paths drawn.

[0415] In one possible implementation, the computer equipment can use the digital model of the second thermal management device as a reference plane, and directly draw all flow paths corresponding to the target battery in the digital model of the second thermal management device based on the flow path parameters in the target thermal management device based on a preset three-dimensional modeling software to obtain the digital model of the first intermediate thermal management device.

[0416] In another possible implementation, the computer device can use the digital model of the second thermal management device as a reference plane, and draw flow paths of different flow channel widths in different second thermal management device digital models based on the preset three-dimensional modeling software according to the flow path parameters in the target thermal management device, to obtain multiple candidate thermal management device digital models, wherein each candidate thermal management device digital model may include but is not limited to the first thermal management device digital model and the second thermal management device digital model with a partial flow path drawn. Further, the computer device can obtain the first intermediate thermal management device digital model by traversing the second thermal management device digital model with a partial flow path drawn in multiple candidate thermal management device digital models. Among them, the first intermediate thermal management device digital model may include but is not limited to the first thermal management device digital model and the second thermal management device digital model with all flow paths drawn.

[0417] Of course, the computer device can also draw all flow paths corresponding to the target battery in the second thermal management device digital model according to the flow path parameters in other ways to obtain the first intermediate thermal management device digital model.

[0418] Step S2033: performing a preset modeling operation on the digital model of the first intermediate thermal management device to obtain a digital model of the target thermal management device.

[0419] In this step, the computer device can obtain a digital model of the thermal management device of the target battery by performing a preset modeling operation on the digital model of the first intermediate thermal management device based on the preset three-dimensional modeling software. The preset modeling operation may include but is not limited to at least one of the following: a third stretching boss operation, a chamfering operation, and a shell extraction operation.

[0420] In some embodiments, Fig.13 A schematic diagram of a flow chart of a preset modeling operation provided in some embodiments of the present application, such as Fig.13 As shown, the above step S2033 may include the following steps:

[0421] Step S1301: Perform a third stretching boss operation on the digital model of the first intermediate thermal management device according to the flow channel width of each flow channel in the flow channel path parameters to obtain the digital model of the second intermediate thermal management device.

[0422] In this step, the computer device can perform a third stretching boss operation on each flow path drawn in the digital model of the first intermediate thermal management device according to the flow width of each flow path in the flow path parameters to obtain the digital model of the second intermediate thermal management device.

[0423] Exemplarily, the pulling height of the third stretching boss operation can be adjusted according to the process and / or demand, etc., without affecting the modeling operation.

[0424] It should be understood that the digital model of the second intermediate thermal management device may include but is not limited to the digital model of the first thermal management device and the digital model of the second thermal management device after the third pull-up boss operation is performed on all flow paths. In which, the flow path bosses may be formed at the positions corresponding to each flow path in the digital model of the second thermal management device after the pull-up boss operation.

[0425] Step S1302: chamfer the digital model of the second intermediate thermal management device to obtain the digital model of the third intermediate thermal management device.

[0426] In this step, the computer device can perform a chamfering operation on the digital model of the second intermediate thermal management device to obtain a third digital model of the intermediate thermal management device. The chamfering operation can be used to make each flow path and / or each flow path boss in the digital model of the intermediate thermal management device smoother, which is conducive to improving the transmission efficiency of the thermal management medium.

[0427] Illustratively, the chamfering operation in the embodiments of the present application may include but is not limited to at least one of the following: an outer corner chamfering operation (or simply referred to as an outer corner chamfering operation), an inner corner chamfering operation (or simply referred to as an inner corner chamfering operation), and a preset corner chamfering operation.

[0428] It should be understood that the third intermediate thermal management device digital model may include but is not limited to the first thermal management device digital model and the second thermal management device digital model after performing a third bossing operation and chamfering operation on all flow path paths.

[0429] In some embodiments, the computer device may perform a boundary extraction operation on the digital model of the second intermediate thermal management device, and determine each first angle and each second angle of the flow channel boss in the digital model of the second intermediate thermal management device. The first angle may include but is not limited to the angle caused by the change in the direction of the flow channel path, and the second angle may include but is not limited to the top surface angle of the flow channel boss and the angle between the root of the flow channel boss and the digital model of the first thermal management device in the digital model of the second intermediate thermal management device.

[0430] In an embodiment of the present application, the computer device can extract the boundary operation on the digital model of the second intermediate thermal management device to determine the first angles of the flow path boss generated by the change in the direction of the flow path in the digital model of the second intermediate thermal management device, the second angles of the top surface of the flow path boss, and the second angle between the root of the flow path boss and the digital model of the first thermal management device in the digital model of the second intermediate thermal management device.

[0431] Furthermore, the computer device may perform a first chamfering operation on each first angle and a second chamfering operation on each second angle to obtain a digital model of the third intermediate thermal management device.

[0432] For example, the first chamfering operation involved in the embodiment of the present application may include but is not limited to an outer chamfering operation and / or an inner chamfering operation. It should be noted that the chamfering value of the outer chamfering operation is greater than or equal to the chamfering value of the inner chamfering operation, and the specific chamfering value of the first chamfering operation can be adjusted according to the process and / or demand.

[0433] For example, the second chamfering operation involved in the embodiment of the present application may include but is not limited to a chamfering operation of a preset angle. It should be noted that the chamfering value of the chamfering operation of the preset angle can be adjusted according to the process and / or demand.

[0434] In the following embodiments of the present application, the above-mentioned “performing a first chamfering operation on each of the first angles” is described and introduced as an example.

[0435] In some embodiments, the computer device may determine the type of each first angle, and perform a first chamfering operation on each first angle according to the type of each first angle, wherein the type of the first angle may include but is not limited to an inner chamfer (or inner R intersection) or an outer chamfer (or outer R intersection).

[0436] Exemplarily, for each first angle, the computer device can use the corner point of the first angle as the origin and make corresponding unit vectors along the two sides of the first angle; if the direction of the sum of the two unit vectors points to the outside of the flow path, the computer device can determine that the first angle is an inner chamfer; if the direction of the sum of the two unit vectors points to the inside of the flow path, the first angle is determined to be an outer chamfer.

[0437] Fig.14 A schematic diagram of a method for determining the type of the first angle provided in some embodiments of the present application, such as Fig.14 As shown, the computer device can use the corner point O1 of the first angle as the origin, draw corresponding unit vectors O1A and O1B along the two sides of the first angle, and add the unit vectors O1A and O1B. Since the direction of the sum vector O1A+O1B of the unit vectors O1A and O1B points to the inside of the flow path, the computer device can determine that the first angle is an external chamfer.

[0438] like Fig.14 As shown, the computer device can use the corner point O2 of the first angle as the origin, draw corresponding unit vectors O2A and O2B along the two sides of the first angle, and add the unit vectors O2A and O2B. Since the direction of the sum vector O2A+O2B of the unit vectors O2A and O2B points to the outside of the flow path, the computer device can determine that the first angle is an inner chamfer.

[0439] It should be noted that the computer device may regard the angle of the flow channel boss generated when the flow channel path direction does not change (for example, the angle corresponding to the starting position of the flow channel path and the angle corresponding to the end position, etc.) as an inner chamfer.

[0440] Furthermore, the computer device may perform a first chamfering operation on each first angle according to the type of each first angle.

[0441] Exemplarily, if the type of any first angle is an external chamfer, the computer device may perform a first chamfering operation on the first angle, wherein the first chamfering operation may be an external chamfering operation.

[0442] As another example, if the type of any first angle is an inner chamfer, the computer device may perform a first chamfer operation on the first angle, wherein the first chamfer operation may be an inner chamfer operation.

[0443] Fig.15 A schematic top view of a portion of a first angle after a first chamfering operation is performed on the portion of the first angle provided in some embodiments of the present application, such as Fig.15 As shown, the chamfer value of the outer chamfer is greater than the chamfer value of the inner chamfer.

[0444] Fig.16 The schematic cross-sectional view of the second chamfering operation on a portion of the second angle provided in some embodiments of the present application, wherein the computer device performs a chamfering operation on the top surface S of the flow channel boss of the digital model M2 of the second thermal management device. t The second angle A i2 and a second angle A between the root of the flow channel boss and the first thermal management device digital model M1 in the second intermediate thermal management device digital model. i2 A second chamfering operation is performed to form a Fig.16 Multiple chamfered structures are shown.

[0445] It can be seen that in the embodiment of the present application, the computer equipment can control the width of the flow path at the corner by determining the type of each first angle in the digital model of the second intermediate thermal management device and performing corresponding chamfering operations according to the type of each first angle, which is beneficial to improving the transmission efficiency of the thermal management medium.

[0446] In addition, in the embodiment of the present application, the boundary extraction operation is performed on the digital model of the second intermediate thermal management device, and the first angles and the second angles of the flow path boss in the digital model of the second intermediate thermal management device are determined. Furthermore, the first chamfering operation is performed on each of the first angles, and the second chamfering operation is performed on each of the second angles, to obtain the digital model of the third intermediate thermal management device. It can be seen that in the embodiment of the present application, by performing corresponding chamfering operations on each of the first angles and the second angles of the flow path boss in the digital model of the second intermediate thermal management device, not only the width of the flow path at the corner can be controlled, but also the flow path boss can be made smoother, which is beneficial to further improve the transmission efficiency of the thermal management medium.

[0447] Step S1303: performing a shell extraction operation on the digital model of the third intermediate thermal management device to obtain a digital model of the thermal management device.

[0448] For example, the shelling operation refers to hollowing out the inner part of a solid object, leaving a shell of a certain thickness, thereby forming a hollow structure. For example, in the modeling of a water-cooling plate, the purpose of shelling is to reduce weight, increase heat dissipation area, or meet specific design requirements.

[0449] In this step, the computer device can perform a shell extraction operation on the contact surface between the first thermal management device digital model and the second thermal management device digital model in the third intermediate thermal management device digital model based on the preset three-dimensional modeling software to obtain a digital model of the thermal management device. The shell extraction value corresponding to the shell extraction operation may include but is not limited to the thickness corresponding to the second thermal management device digital model.

[0450] Fig.17 Some embodiments of the present application provide Fig.16 The schematic cross-sectional view of the structure shown in FIG. 1 after the shell extraction operation is performed, the computer device can hollow out the interior of the flow channel boss portion in the digital model M2 of the second thermal management device and retain the thickness corresponding to the digital model of the second thermal management device to form a Fig.17 The structure shown.

[0451] In an embodiment of the present application, a second intermediate thermal management device digital model is obtained by performing a stretching boss operation on the first intermediate thermal management device digital model according to the flow channel width of each flow channel in the flow channel path parameters. Furthermore, a third intermediate thermal management device digital model is obtained by performing a chamfering operation on the second intermediate thermal management device digital model, and a shell extraction operation is performed on the third intermediate thermal management device digital model to obtain a digital model of the thermal management device. It can be seen that the embodiment of the present application realizes that a digital model of the thermal management device can be intelligently constructed on the basis of the first intermediate thermal management device digital model according to the flow channel path parameters, which can help to more quickly obtain a digital model of the target thermal management device that meets the flow channel design requirements, thereby helping to improve the construction efficiency of the digital model of the thermal management device (it has been verified that it only takes 30 seconds to 2 minutes).

[0452] In summary, in the embodiment of the present application, the digital model of the first thermal management device and the digital model of the second thermal management device are constructed according to the box frame size in the component parameters. Furthermore, taking the digital model of the second thermal management device as the reference plane, all flow paths corresponding to the target battery are drawn in the digital model of the second thermal management device according to the flow path parameters to obtain the digital model of the first intermediate thermal management device, and the digital model of the first intermediate thermal management device is subjected to a preset modeling operation to obtain the digital model of the target thermal management device. It can be seen that the embodiment of the present application realizes that the digital model of the thermal management device can be constructed in a standardized manner according to the box frame size and flow path parameters in the component parameters, which can help to more quickly obtain the digital model of the target thermal management device that meets the flow path design requirements, thereby helping to further improve the construction efficiency of the digital model of the thermal management device.

[0453] In some embodiments, Fig.18 This is a flow chart of a method for determining a digital model of a target thermal management device provided in some other embodiments of the present application. For ease of understanding, the overall flow of the method for determining a digital model of a target thermal management device in the embodiments of the present application is described as an example. Fig.18 As shown, the method of the embodiment of the present application may include the following steps:

[0454] Step S1801, construct a first thermal management device sketch and a second thermal management device sketch according to the box frame size, and perform a first stretching boss operation along the normal vector of the first thermal management device sketch to obtain the first thermal management device digital model, and perform a second stretching boss operation along the normal vector of the second thermal management device sketch to obtain the second thermal management device digital model.

[0455] Step S1802: using the digital model of the second thermal management device as a reference plane, drawing all flow paths corresponding to the target battery in the digital model of the second thermal management device according to the flow path parameters, and obtaining the digital model of the first intermediate thermal management device.

[0456] Step S1803: performing a third stretching boss operation on the digital model of the first intermediate thermal management device according to the flow channel width of each flow channel in the flow channel path parameters to obtain the digital model of the second intermediate thermal management device.

[0457] Step S1804: extracting the boundary of the digital model of the second intermediate thermal management device, and determining each first angle and each second angle of the flow channel boss in the digital model of the second intermediate thermal management device.

[0458] Step S1805: determine the type of each of the first angles.

[0459] Step S1806: Perform a first chamfering operation on each first angle according to the type of each first angle, and perform a second chamfering operation on each second angle to obtain a digital model of the third intermediate thermal management device.

[0460] Step S1807: performing a shell extraction operation on the digital model of the third intermediate thermal management device to obtain a digital model of the thermal management device.

[0461] It should be noted that the implementation methods of each step in the embodiments of the present application can refer to the relevant contents in the above embodiments and will not be repeated here.

[0462] In some embodiments, Fig.19 The present invention provides a flowchart of a method for obtaining the component parameters of a battery component in some embodiments of the present invention. The present invention provides an exemplary description of how to obtain the component parameters of at least one battery component in the target battery in the above step S201. Fig.19 As shown, the above step S201 may include the following steps:

[0463] Step S2011, obtaining the assembly digital-analog of the target battery.

[0464] In a possible implementation, the computer device may receive the total digital-analog signal of the target battery sent by other devices.

[0465] In another possible implementation, the computer device may receive the total digital-analog value of the target battery input by the user.

[0466] Of course, the computer device can also obtain the overall digital analog of the target battery through other means.

[0467] Step S2012: Determine the component parameters of at least one battery component in the target battery according to the assembly digital-analog of the target battery.

[0468] In this step, the computer device can determine the component parameters of at least one battery component in the target battery based on the overall digital model of the target battery.

[0469] In a possible implementation, for each battery assembly, a search operation is performed on the overall digital-analog of the target battery according to the identification of the battery assembly to obtain assembly parameters of the battery assembly.

[0470] In this implementation, for each battery assembly, the computer device can search the target battery assembly digital model according to the identification of the battery assembly to obtain the assembly parameters of the battery assembly. Exemplarily, the identification of the battery assembly may include but is not limited to the assembly number of the battery assembly and / or the assembly digital model name corresponding to the battery assembly.

[0471] Exemplarily, if the identification of the battery component is the component number of the battery component, the computer device can search the target battery assembly digital analog according to the component number of the battery component to determine the battery component, and determine the component digital analog (or component digital analog) corresponding to the battery component in the target battery assembly digital analog. Further, the computer device can obtain the component parameters of the battery component according to the component digital analog of the battery component.

[0472] As another example, if the identification of the battery component is the component digital-analog name of the battery component, the computer device can search the assembly digital-analog of the target battery according to the component digital-analog name of the battery component to obtain the component digital-analog of the battery component, and obtain the component parameters of the battery component according to the component digital-analog of the battery component.

[0473] For ease of understanding, the following embodiments of the present application take the battery assembly including a battery cell group as an example to exemplarily introduce and explain the above-mentioned "searching the assembly digital and analog of the target battery according to the identification of the battery assembly to obtain the assembly parameters of the battery assembly".

[0474] In the embodiment of the present application, the computer device can search the digital and analog of the target battery assembly according to the identification of the battery cell group to obtain the digital and analog of all battery cells of the target battery.

[0475] Exemplarily, the computer device may search the assembled digital model of the target battery according to the identification of the battery cell group to obtain the three-dimensional digital model (or simply the digital model) of all battery cells in each battery cell group in the target battery.

[0476] Furthermore, the computer device may project each point in the digital model of all battery cells to the XY plane coordinate system where the box frame of the target battery is located, and determine the position coordinates of each battery cell in the XY plane coordinate system.

[0477] For example, the computer device can discretize the digital models of all battery cells into points based on the preset 3D modeling software, project each point in the digital models of all battery cells to the XY plane coordinate system where the box frame of the target battery is located, and determine the maximum position coordinate x of each battery cell along the X direction. max , the minimum position coordinate x of each battery cell along the X direction min , the maximum position coordinate y of each battery cell along the Y direction max , and the maximum position coordinate y of each battery cell along the Y direction min .

[0478] Furthermore, the computer device can divide the battery cell groups according to the preset X-direction threshold, the preset Y-direction threshold and the position coordinates of each battery cell in the XY plane coordinate system to obtain the component parameters of the battery cell group. The component parameters of the battery cell group may include but are not limited to the number of battery cell groups and / or the position coordinates of the battery cell group.

[0479] Exemplarily, the computer device may divide the battery cell groups according to a preset X-direction threshold, a preset Y-direction threshold and the position coordinates of each battery cell in the XY plane coordinate system to obtain at least one battery cell group, wherein each battery cell group may include multiple battery cells.

[0480] For example, assuming that the preset X-direction threshold is θx and the preset Y-direction threshold is θy, all battery cells are sorted from large to small (or from small to large) in the X-direction and Y-direction, and any battery cell is selected and stored in the module array, and deleted from the original cell array. Further, the spacing along the X-direction and the spacing along the Y-direction of the battery cell and other adjacent battery cells in the original cell array are cyclically compared, and the adjacent battery cells whose spacing along the X-direction is less than the preset X-direction threshold θx and whose spacing along the Y-direction is less than the preset Y-direction threshold θy are classified as one module, which are stored in the same module array and deleted from the original cell array. Further, the spacing along the X-direction and the spacing along the Y-direction of the battery cell newly added to the module array are cyclically compared with the spacing along the X-direction and the spacing along the Y-direction of the other adjacent battery cells in the original cell array, and the adjacent battery cells whose spacing along the X-direction is less than the preset X-direction threshold θx and whose spacing along the Y-direction is less than the preset Y-direction threshold θy are classified as one module, which are stored in the same module array and deleted from the original cell array, ..., and so on, until all battery cells of the target battery are divided.

[0481] Of course, the computer device may also divide the battery cells into groups in other ways according to the preset X-direction threshold, the preset Y-direction threshold and the position coordinates of each battery cell in the XY plane coordinate system.

[0482] Further, for each battery cell group, the computer device may determine the position coordinates of the battery cell group according to the position coordinates of all battery cells in the battery cell group.

[0483] Exemplarily, the computer device may use the minimum position coordinate of all battery cells in the battery cell group along the X direction as the minimum position coordinate of the battery cell along the X direction, and use the maximum position coordinate of all battery cells in the battery cell group along the X direction as the maximum position coordinate of the battery cell along the X direction.

[0484] Exemplarily, the computer device may use the minimum position coordinate of all battery cells in the battery cell group along the Y direction as the minimum position coordinate of the battery cell along the Y direction, and use the maximum position coordinate of all battery cells in the battery cell group along the Y direction as the maximum position coordinate of the battery cell along the Y direction.

[0485] In another possible implementation, a selection instruction for a battery component in the assembly digital model is received, and component parameters of the battery component are determined according to the selection instruction.

[0486] In this implementation, the computer device may receive a selection instruction for a battery component in the digital model of the target battery, and determine the component parameters of the battery component according to the selection instruction, wherein the selection instruction may include but is not limited to the identification of the battery component.

[0487] Exemplarily, the selection instruction of the battery component may be an instruction input by a user, or may be an instruction input by other devices, or may be an instruction automatically input by a computer device based on a preset selection program; of course, it may also be an instruction received by a computer device in other ways.

[0488] Of course, the computer device may also determine the component parameters of at least one battery component in the target battery in other ways based on the overall digital analog of the target battery.

[0489] In summary, in the embodiments of the present application, by obtaining the assembly digital-analog of the target battery and determining the component parameters of at least one battery component in the target battery based on the assembly digital-analog of the target battery, it is possible to accurately determine the component parameters of the battery components of the target battery, so that the flow path parameters of the flow channel in the target thermal management device can be determined in a standardized manner based on the component parameters of the battery components of the target battery, thereby helping to further improve the flow path planning efficiency in the target thermal management device.

[0490] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0491] Based on the same inventive concept, the embodiment of the present application also provides a thermal management device digital analog determination device for implementing the thermal management device digital analog determination method involved above. The implementation solution provided by the device to solve the problem is similar to the implementation solution recorded in the above method, so the specific limitations in one or more thermal management device digital analog determination device embodiments provided below can refer to the limitations of the thermal management device digital analog determination method above, and will not be repeated here.

[0492] In some embodiments, Fig. 20 This is a schematic diagram of the structure of the device for determining the digital analog of a thermal management device in some embodiments of the present application. The device for determining the digital analog of a thermal management device provided in the embodiments of the present application can be applied to computer equipment. Fig. 20 As shown, the device for determining the digital-analog value of a thermal management device in the embodiment of the present application may include: an acquisition module 2001 , a first determination module 2002 , and a second determination module 2003 .

[0493] The acquisition module 2001 is used to acquire the component parameters of at least one battery component in the target battery; wherein the battery component includes at least one of the following: a battery cell group, a box frame, an inlet of a thermal management medium, an outlet of a thermal management medium, and a fastener; the component parameters include at least one of the following: position coordinates, quantity, and size;

[0494] A first determination module 2002 is used to determine a flow path parameter of a flow channel in a target thermal management device corresponding to a target battery according to the component parameters, wherein the flow channel is used for the circulation of a thermal management medium in the thermal management device;

[0495] The second determination module 2003 is used to determine the digital model of the target thermal management device according to the component parameters and the flow path parameters.

[0496] In some embodiments, in some embodiments, the flow channel includes at least one of the following: an inlet connection flow channel for a thermal management medium, a main inlet flow channel, a flow channel within a battery cell group, a connection flow channel between battery cell groups, a main outlet flow channel, and an outlet connection flow channel for a thermal management medium;

[0497] Among them, the two ends of the inlet connecting channel of the thermal management medium are respectively connected to the inlet of the thermal management medium and the main inlet channel; the two ends of the outlet connecting channel of the thermal management medium are respectively connected to the main outlet channel and the outlet of the thermal management medium; the main inlet channel is used to input the thermal management medium into the channel inside the battery cell group; the main outlet channel is used to transmit the thermal management medium output from the channel inside the battery cell group; the connecting channel between battery cell groups is used to transmit the thermal management medium in the flow channels of two adjacent battery cell groups.

[0498] In some embodiments, the flow channel includes a main outlet flow channel, the battery assembly includes a battery cell group and a box frame, and the first determination module 2002 includes:

[0499] A first determination unit, configured to determine the number N of flow path paths of the main outlet flow channel according to the number of battery cell groups in the component parameters; wherein N is an integer greater than 0;

[0500] The second determination unit is used to determine the flow path parameters of the main outlet flow channel corresponding to the target battery according to the number N of flow path paths of the main outlet flow channel, the battery cell group position coordinates in the component parameters, and the box frame position coordinates; wherein the battery cell group position coordinates and the box frame position coordinates both belong to the XY plane coordinate system where the box frame of the target battery is located.

[0501] In some embodiments, the second determining unit is specifically configured to:

[0502] Determine the center line of the box frame in the Y direction in the XY plane coordinate system according to the position coordinates of the box frame, and symmetrically set N / 2 flow path paths of the main outlet flow channels on both sides of the center line parallel to the X direction in the XY plane coordinate system; wherein the distance between the flow path paths of the two main outlet flow channels close to the center line along the Y direction is the preset reserved space width;

[0503] For each main outlet flow path, the end point coordinates and the start point coordinates of the flow path of the main outlet flow path are determined according to the position coordinates of the first battery cell group and the last battery cell group corresponding to the flow path of the main outlet flow path along the X direction.

[0504] In some embodiments, the second determining unit is specifically configured to:

[0505] The end point coordinates of the flow path of the main outlet flow channel are determined according to the minimum position coordinates of the first battery cell group along the X direction, and the starting point coordinates of the flow path of the main outlet flow channel are determined according to the minimum position coordinates of the last battery cell group along the X direction, the preset maximum flow channel width and the preset minimum welding width.

[0506] In some embodiments, the first determining unit is specifically configured to:

[0507] If the number of battery cell groups arranged along the X direction in the XY plane coordinate system is less than a first preset number threshold, the number N of flow path paths of the main outlet flow channel is determined to be a first number; or,

[0508] If the number of battery cell groups arranged along the X direction is not less than the first preset number threshold, the number N of flow channel paths of the main outlet flow channel is determined to be a second number; wherein the second number is greater than the first number.

[0509] In some embodiments, the flow channel includes a main inlet flow channel, the battery assembly includes a battery cell group and a box frame, and the first determination module 2002 includes:

[0510] A third determining unit is used to determine the number M of flow path paths of the main inlet flow channel according to the number of battery cell groups in the component parameters; wherein M is an integer greater than 0;

[0511] The fourth determining unit is used to determine the flow path parameters of the main inlet flow channel corresponding to the target battery according to the flow path number M of the main inlet flow channel, the battery cell group position coordinates in the component parameters, and the box frame position coordinates.

[0512] In some embodiments, the fourth determining unit is specifically configured to:

[0513] Determine the center line of the box frame in the Y direction in the XY plane coordinate system according to the position coordinates of the box frame, and set M / 2 flow path paths of the main inlet flow channel symmetrically on both sides of the center line based on the center line; wherein the distance between the starting point of the flow path of the main inlet flow channel close to the center line and the flow path of the adjacent main outlet flow channel along the Y direction is the preset reserved space width, and the distance between the end point of the flow path of the main inlet flow channel far from the center line and the adjacent box frame along the Y direction is zero;

[0514] For the flow path of each main inlet flow channel, the starting point coordinates and the end point coordinates of the flow path of the main inlet flow channel are determined according to the position coordinates of the first battery cell group and the last battery cell group corresponding to the flow path of the main outlet flow channel in the X direction in the XY plane coordinate system;

[0515] The extension direction of the flow path of the main inlet flow channel is determined according to the starting point coordinates of the flow path of the main inlet flow channel, the end point coordinates of the flow path of the main inlet flow channel and the position coordinates of the box frame.

[0516] In some embodiments, the fourth determining unit is specifically configured to:

[0517] Determine the starting point coordinates of the flow path of the main inlet flow channel according to the minimum position coordinates of the first battery cell group along the X direction;

[0518] The end point coordinates of the flow path of the main inlet flow channel are determined according to the maximum position coordinates of the last battery cell group along the X direction.

[0519] In some embodiments, the fourth determining unit is specifically configured to:

[0520] Determine to start from the starting point coordinate of the flow path of the main inlet flow channel, extend a first preset distance along the X direction, and extend to a first middle position point along the Y direction; wherein the distance between the first middle position point and the box frame in the X direction is a second preset distance;

[0521] Determine a second middle position point extending from the first middle position point to the box frame along the Y direction; wherein the distance between the second middle position point and the box frame along the X direction is a third preset distance;

[0522] Starting from the second middle position point, it extends along the Y direction to the box frame along the X direction, and extends along the X direction to the end point coordinate of the flow path of the main inlet flow channel.

[0523] In some embodiments, the flow channel includes an outlet of the thermal management medium connected to the flow channel, the battery assembly includes an inlet of the thermal management medium, an outlet of the thermal management medium, a box frame and a fastener, and the first determination module 2002 includes:

[0524] a first conversion unit, for converting the box frame position coordinates, the inlet position coordinates of the thermal management medium, the fastener position coordinates, and the end point coordinates of the flow path of the main outlet flow channel in the component parameters to the box frame position coordinates, the inlet position coordinates of the thermal management medium, the fastener position coordinates, and the end point coordinates of the flow path of the main outlet flow channel in the reference map, respectively, with the outlet position coordinates of the thermal management medium in the component parameters as the origin of the reference map;

[0525] A fifth determining unit, configured to determine a first planned path from an origin of the reference map to an end point coordinate of a flow path of a main outlet flow channel in the reference map according to a preset search algorithm; wherein the first planned path includes a plurality of first planned position points;

[0526] The sixth determining unit is used to determine the flow path parameter of the outlet connecting flow channel of the thermal management medium according to the first planned path.

[0527] In some embodiments, the fifth determining unit is specifically configured to:

[0528] For each first planned position point, according to a preset search step length, a position point in the reference map that minimizes the value of a preset optimization function is used as the next first planned position point adjacent to the first planned position point;

[0529] A first planned path is obtained according to each first planned position point.

[0530] In some embodiments, the sixth determining unit is specifically configured to:

[0531] Convert the first planned path into a first planned path in an XY plane coordinate system where the box frame of the target battery is located;

[0532] If the endpoint coordinates of the first planned path in the XY plane coordinate system match the endpoint coordinates of the flow path of the main outlet flow channel, the first planned path in the XY plane coordinate system is used as the flow path of the outlet connecting flow channel of the thermal management medium.

[0533] In some embodiments, the sixth determining unit is further configured to:

[0534] If the end point coordinates of the first planned path in the XY plane coordinate system do not match the end point coordinates of the flow path of the main outlet flow channel, the first planned path in the XY plane coordinate system is adjusted according to the deviation distance between the end point coordinates of the first planned path in the XY plane coordinate system and the end point coordinates of the flow path of the main outlet flow channel to obtain an adjusted first planned path in the XY plane coordinate system;

[0535] The first planned path in the adjusted XY plane coordinate system is used as the flow path of the outlet connection flow channel of the thermal management medium.

[0536] In some embodiments, the flow channel includes an inlet of a thermal management medium connected to the flow channel, the battery assembly includes an inlet of the thermal management medium, an outlet of the thermal management medium, a box frame and a fastener, and the first determination module 2002 includes:

[0537] a second conversion unit, for converting the cabinet frame position coordinates, the thermal management medium outlet position coordinates, the fastener position coordinates, and the start point coordinates of the flow path of the main inlet flow channel in the component parameters to the cabinet frame position coordinates, the thermal management medium outlet position coordinates, the fastener position coordinates, and the start point coordinates of the flow path of the main inlet flow channel in the reference map, respectively, with the thermal management medium inlet position coordinates in the component parameters as the origin of the reference map;

[0538] a seventh determination unit, configured to determine, according to a preset search algorithm, a second planned path from the origin of the reference map to the starting coordinates of the flow path of the main inlet flow channel in the reference map; wherein the second planned path includes a plurality of second planned position points;

[0539] The eighth determining unit is used to determine the flow path parameter of the inlet connecting flow channel of the thermal management medium according to the second planned path.

[0540] In some embodiments, the seventh determining unit is specifically configured to:

[0541] For each second planned location point, according to a preset search step length, a location point in the reference map that minimizes the value of a preset optimization function is used as the next second planned location point adjacent to the second planned location point;

[0542] A second planned path is obtained according to each second planned position point.

[0543] In some embodiments, the eighth determining unit is specifically configured to:

[0544] Convert the second planned path into a second planned path in an XY plane coordinate system where the box frame of the target battery is located;

[0545] If the end coordinates of the second planned path in the XY plane coordinate system match the start coordinates of the flow path of the main inlet flow channel, the second planned path in the XY plane coordinate system is used as the flow path of the inlet connection flow channel of the thermal management medium.

[0546] In some embodiments, the eighth determining unit is further configured to:

[0547] If the end point coordinates of the second planned path in the XY plane coordinate system do not match the start point coordinates of the flow path of the main inlet flow channel, the second planned path in the XY plane coordinate system is adjusted according to the deviation distance between the start point coordinates of the second planned path in the XY plane coordinate system and the start point coordinates of the flow path of the main inlet flow channel to obtain an adjusted second planned path in the XY plane coordinate system;

[0548] The second planned path in the adjusted XY plane coordinate system is used as the flow path of the inlet connecting the flow channel of the thermal management medium.

[0549] In some embodiments, the flow channel includes a flow channel in a battery cell group, the battery assembly includes a battery cell group, and the first determination module 2002 includes:

[0550] a ninth determining unit, for determining, for each battery cell group, an actual cooling width of a module area corresponding to the battery cell group in the Y direction of an XY plane coordinate where a box frame of a target battery is located, according to the flow path parameters of the main inlet flow channel, the flow path parameters of the main outlet flow channel, and the position coordinates of the battery cell group in the assembly parameters;

[0551] a tenth determining unit, configured to determine a maximum number of flow channel paths within the battery cell group according to an actual cooling width, a preset minimum welding width, a preset maximum flow channel width, and a preset minimum flow channel width;

[0552] The eleventh determining unit is used to determine the actual flow channel width of the flow channel path in the battery cell group and the actual welding width between the flow channel paths according to the actual cooling width and the maximum number.

[0553] In some embodiments, the eleventh determining unit is specifically configured to:

[0554] Determining an actual flow channel width of a flow channel path within a battery cell group based on an actual cooling width, a preset minimum welding width, a preset maximum flow channel width, and a maximum number;

[0555] The actual welding width between the flow channel paths within the battery cell group is determined based on the actual cooling width, the maximum number and the actual flow channel width.

[0556] In some embodiments, the ninth determining unit is specifically configured to:

[0557] Determining whether a module area corresponding to the battery cell group includes a main inlet flow channel path and / or a main outlet flow channel path according to flow channel path parameters of the main inlet flow channel, flow channel path parameters of the main outlet flow channel and position coordinates of the battery cell group;

[0558] If the module area corresponding to the battery cell group does not include the main inlet flow channel path and the main outlet flow channel path, the difference between the maximum position coordinate and the minimum position coordinate of the battery cell group along the Y direction is used as the actual cooling width; or,

[0559] If the module area corresponding to the battery cell group includes a main inlet flow channel path or a main outlet flow channel path, the actual cooling width is determined based on the difference between the maximum position coordinate and the minimum position coordinate of the battery cell group along the Y direction, and the distance along the Y direction of the main flow channel path area corresponding to the main inlet flow channel path or the main outlet flow channel path.

[0560] In some embodiments, the flow channel includes a flow channel connecting battery cell groups, the battery assembly includes a battery cell group and a box frame, and the first determination module 2002 includes:

[0561] A twelfth determining unit, used to determine the gap area between each battery cell group in the Y direction of the XY plane coordinate system where the box frame of the target battery is located according to the battery cell group position coordinates in the component parameters;

[0562] A first acquisition unit is used to acquire, for each gap region, flow channel path parameters of the flow channels in the battery cell groups of two battery cell groups adjacent to the gap region;

[0563] A thirteenth determining unit is used to determine the flow path parameters of the inter-battery cell group connecting flow channel between the two battery cell groups according to the flow path parameters of the intra-battery cell group flow channels of the two battery cell groups.

[0564] In some embodiments, the thirteenth determining unit is specifically configured to:

[0565] Determining flow path parameters of edge flow channels along the Y direction in the battery cell groups of the two battery cell groups according to the flow path parameters of the flow channels in the battery cell groups of the two battery cell groups;

[0566] The flow path parameters of the inter-battery cell group connecting flow channel between the two battery cell groups are determined according to the flow path parameters of the edge flow channels along the Y direction within the battery cell groups of the two battery cell groups.

[0567] In some embodiments, the second determining module 2003 includes:

[0568] A construction unit, used to construct a digital model of a first thermal management device and a digital model of a second thermal management device according to a box frame size in a component parameter;

[0569] A drawing unit, used to draw all flow paths corresponding to the target battery in the second thermal management device digital model according to the flow path parameters, using the second thermal management device digital model as a reference plane, to obtain the first intermediate thermal management device digital model;

[0570] The modeling unit is used to perform a preset modeling operation on the digital model of the first intermediate thermal management device to obtain a digital model of the target thermal management device.

[0571] In some embodiments, the modeling unit is specifically configured to:

[0572] Performing a stretching boss operation on the digital model of the first intermediate thermal management device according to the flow channel width of each flow channel in the flow channel path parameter to obtain the digital model of the second intermediate thermal management device;

[0573] Performing a chamfering operation on the digital model of the second intermediate thermal management device to obtain a digital model of the third intermediate thermal management device;

[0574] The digital model of the third intermediate thermal management device is subjected to a shell extraction operation to obtain a digital model of the thermal management device.

[0575] In some embodiments, the modeling unit is specifically configured to:

[0576] Performing a boundary extraction operation on the digital model of the second intermediate thermal management device, and determining each first angle and each second angle of the flow channel boss in the digital model of the second intermediate thermal management device; wherein the first angle includes an angle generated by a change in the direction of the flow channel path, and the second angle includes an angle of a top surface of the flow channel boss and an angle between a root of the flow channel boss and the digital model of the first thermal management device in the digital model of the second intermediate thermal management device;

[0577] A first chamfering operation is performed on each first angle, and a second chamfering operation is performed on each second angle, to obtain a digital model of the third intermediate thermal management device.

[0578] In some embodiments, the modeling unit is specifically configured to:

[0579] determining a type of each of the first angles;

[0580] A first chamfering operation is performed on each of the first angles according to the type of each of the first angles.

[0581] In some embodiments, the modeling unit is specifically configured to:

[0582] For each first angle, take the corner point of the first angle as the origin and draw corresponding unit vectors along the two sides of the first angle;

[0583] If the direction of the sum of the two unit vectors points to the outside of the flow path, the first angle is determined to be an inner chamfer;

[0584] If the direction of the sum of the two unit vectors points to the inside of the flow path, the first angle is determined to be an external chamfer.

[0585] In some embodiments, the acquisition module 2001 includes:

[0586] A second acquisition unit, used to acquire the overall digital analog of the target battery;

[0587] The fourteenth determination unit is used to determine the component parameters of at least one battery component in the target battery according to the overall digital-analog combination of the target battery.

[0588] In some embodiments, the fourteenth determining unit is specifically configured to:

[0589] For each battery assembly, a search operation is performed on the target battery assembly digital-analog combination according to the identification of the battery assembly to obtain assembly parameters of the battery assembly; or,

[0590] Receive a click instruction for a battery component in the assembly digital model, and determine component parameters of the battery component according to the click instruction.

[0591] In some embodiments, the battery assembly includes a battery cell group, and the fourteenth determining unit is specifically configured to:

[0592] Search the target battery's assembly digital-analog according to the battery cell group's identifier to obtain the digital-analog of all battery cells of the target battery;

[0593] Project each point in the digital model of all battery cells to the XY plane coordinate system where the box frame of the target battery is located, and determine the position coordinates of each battery cell in the XY plane coordinate system;

[0594] The battery cell groups are divided according to the preset X-direction threshold, the preset Y-direction threshold and the position coordinates of each battery cell in the XY plane coordinate system to obtain component parameters of the battery cell groups.

[0595] The device for determining the digital-analog relationship of a thermal management device provided in the embodiment of the present application can be used to execute the technical solution in the embodiment of the method for determining the digital-analog relationship of a thermal management device described above in the present application. Its implementation principle and technical effect are similar and will not be repeated here.

[0596] Each module in the above-mentioned thermal management device digital-analog determination device can be implemented in whole or in part by software, hardware, or a combination thereof. Each of the above-mentioned modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each of the above modules.

[0597] In some embodiments, Fig.21 This is a schematic diagram of the structure of a computer device in some embodiments of the present application, such as Fig.21 As shown, the computer device provided in the embodiment of the present application may include a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. Among them, the processor, the memory and the input / output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless method can be implemented through WIFI, a mobile cellular network, near field communication (Near Field Communication, NFC) or other technologies. When the computer program is executed by the processor, the technical solution in the embodiment of the digital analog determination method of the above-mentioned thermal management device of the present application is implemented.

[0598] Exemplarily, the display unit of the computer device is used to form a visually visible picture, and may be a display screen, a projection device, or a virtual reality imaging device. The display screen may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device may be a touch layer covered on the display screen, or a key, trackball, or touchpad provided on the computer device housing, or an external keyboard, touchpad, or mouse, etc.

[0599] Those skilled in the art will understand that Fig.21 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0600] In some embodiments, a computer device is also provided, including a memory and a processor, wherein a computer program is stored in the memory. When the processor executes the computer program, the technical solution in the above-mentioned thermal management device digital analog determination method embodiment of the present application is implemented. The implementation principle and technical effect are similar and will not be repeated here.

[0601] In some embodiments, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the technical solution in the above-mentioned thermal management device digital-analog determination method embodiment of the present application is implemented. The implementation principle and technical effect are similar and will not be repeated here.

[0602] In some embodiments, a computer program product is provided, including a computer program. When the computer program is executed by a processor, the technical solution in the above-mentioned thermal management device digital-analog determination method embodiment of the present application is implemented. The implementation principle and technical effect are similar and will not be repeated here.

[0603] In some embodiments, a battery is provided, and the battery may include: a housing, at least one battery cell group, and a thermal management device manufactured based on the above-mentioned thermal management device digital-analog determination method embodiment of the present application.

[0604] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The processor involved in each embodiment provided in this application can be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, etc., but is not limited thereto.

[0605] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A method for determining a digital model of a thermal management device, characterized in that: The method comprises: Obtaining component parameters of at least one battery component in the target battery; wherein the battery component includes: a battery cell group, a box frame, an inlet of a thermal management medium, an outlet of a thermal management medium, and a fastener; the component parameters include position coordinates; Determining, according to the component parameters, a flow path parameter of a flow channel in a target thermal management device corresponding to the target battery, the flow channel being used for allowing a thermal management medium in the thermal management device to circulate; Determining a digital model of the target thermal management device according to the component parameters and the flow path parameters; Wherein, the flow channel includes an outlet connection flow channel of the thermal management medium, and the flow channel path parameters of the flow channel in the target thermal management device corresponding to the target battery are determined according to the component parameters, including: Taking the outlet position coordinates of the thermal management medium in the component parameters as the origin of the reference map, the box frame position coordinates, the inlet position coordinates of the thermal management medium, the fastener position coordinates, and the end point coordinates of the flow path of the main outlet flow channel in the component parameters are respectively converted to the box frame position coordinates, the inlet position coordinates of the thermal management medium, the fastener position coordinates, and the end point coordinates of the flow path of the main outlet flow channel in the reference map; wherein the two ends of the outlet connection flow channel of the thermal management medium are respectively connected to the main outlet flow channel and the outlet of the thermal management medium; Determine a first planned path from the origin of the reference map to the end point coordinates of the flow path of the main outlet flow channel in the reference map according to a preset search algorithm; wherein the first planned path includes a plurality of first planned position points; The flow channel path parameters of the outlet connection flow channel of the thermal management medium are determined according to the first planned path.

2. The method according to claim 1, characterized in that: The flow channel also includes at least one of the following: an inlet connection flow channel for a thermal management medium, a main inlet flow channel, a flow channel within a battery cell group, a connection flow channel between battery cell groups, and a main outlet flow channel; Among them, the two ends of the inlet connecting flow channel of the thermal management medium are respectively connected to the inlet of the thermal management medium and the main inlet flow channel; the main inlet flow channel is used to input the thermal management medium into the flow channel inside the battery cell group; the main outlet flow channel is used to transmit the thermal management medium output from the flow channel inside the battery cell group; the battery cell group connection flow channel is used to transmit the thermal management medium in the flow channels of two adjacent battery cell groups.

3. The method according to claim 2, characterized in that The flow channel includes the main outlet flow channel, the component parameter also includes quantity, and determining the flow channel path parameter of the flow channel in the target thermal management device corresponding to the target battery according to the component parameter includes: Determine the number of flow path N of the main outlet flow channel according to the number of battery cell groups in the component parameters; wherein N is an integer greater than 0; The flow path parameters of the main outlet flow channel corresponding to the target battery are determined according to the number N of flow path paths of the main outlet flow channel, the battery cell group position coordinates and the box frame position coordinates in the component parameters; wherein the battery cell group position coordinates and the box frame position coordinates both belong to the XY plane coordinate system where the box frame of the target battery is located.

4. The method according to claim 3, characterized in that The determining of the flow path parameters of the main outlet flow channel corresponding to the target battery according to the flow path number N of the main outlet flow channel, the battery cell group position coordinates and the box frame position coordinates in the component parameters includes: Determine the center line of the box frame in the Y direction in the XY plane coordinate system according to the position coordinates of the box frame, and symmetrically set N / 2 flow path paths of the main outlet flow channels on both sides of the center line parallel to the X direction in the XY plane coordinate system; wherein the distance between the flow path paths of the two main outlet flow channels close to the center line along the Y direction is the preset reserved space width; For each of the main outlet flow paths, the end point coordinates and the start point coordinates of the flow path of the main outlet flow path are determined according to the position coordinates of the first battery cell group and the last battery cell group corresponding to the flow path of the main outlet flow path along the X direction.

5. The method according to claim 4, characterized in that The step of determining the end point coordinates and the start point coordinates of the flow path of the main outlet flow channel according to the position coordinates of the first battery cell group and the last battery cell group corresponding to the flow path of the main outlet flow channel along the X direction comprises: The end point coordinates of the flow path of the main outlet flow channel are determined according to the minimum position coordinates of the first battery cell group along the X direction, and the starting point coordinates of the flow path of the main outlet flow channel are determined according to the minimum position coordinates of the last battery cell group along the X direction, the preset maximum flow channel width and the preset minimum welding width.

6. The method according to claim 3, characterized in that The step of determining the number N of flow path paths of the main outlet flow channel according to the number of battery cell groups in the component parameters includes: If the number of battery cell groups arranged along the X direction in the XY plane coordinate system is less than a first preset number threshold, the number N of flow path paths of the main outlet flow channel is determined to be a first number; or, If the number of battery cell groups arranged along the X direction is not less than the first preset number threshold, the number N of flow channel paths of the main outlet flow channel is determined to be a second number; wherein the second number is greater than the first number.

7. The method according to claim 2, characterized in that The flow channel includes the main inlet flow channel, the component parameter also includes quantity, and determining the flow channel path parameter of the flow channel in the target thermal management device corresponding to the target battery according to the component parameter includes: Determine the number of flow path M of the main inlet flow channel according to the number of battery cell groups in the component parameters; wherein M is an integer greater than 0; The flow path parameters of the main inlet flow channel corresponding to the target battery are determined according to the flow path number M of the main inlet flow channel, the battery cell group position coordinates and the box frame position coordinates in the component parameters.

8. The method according to claim 7, characterized in that The determining of the flow path parameters of the main inlet flow channel corresponding to the target battery according to the flow path number M of the main inlet flow channel, the battery cell group position coordinates and the box frame position coordinates in the component parameters includes: Determine the center line of the box frame in the Y direction in the XY plane coordinate system according to the position coordinates of the box frame, and symmetrically set M / 2 flow path paths of the main inlet flow channel on both sides of the center line based on the center line; wherein the distance between the starting point of the flow path of the main inlet flow channel close to the center line and the adjacent flow path of the main outlet flow channel along the Y direction is the preset reserved space width, and the distance between the end point of the flow path of the main inlet flow channel away from the center line and the adjacent box frame along the Y direction is zero; For the flow path of each of the main inlet flow channels, determine the starting point coordinates and the end point coordinates of the flow path of the main inlet flow channel according to the position coordinates of the first battery cell group and the last battery cell group corresponding to the flow path of the main outlet flow channel in the X direction in the XY plane coordinate system; The extension direction of the flow path of the main inlet flow channel is determined according to the starting point coordinates of the flow path of the main inlet flow channel, the ending point coordinates of the flow path of the main inlet flow channel and the position coordinates of the box frame.

9. The method according to claim 8, characterized in that The method of determining the starting point coordinates and the end point coordinates of the flow path of the main inlet flow channel according to the position coordinates of the first battery cell group and the last battery cell group corresponding to the flow path of the main outlet flow channel in the X direction in the XY plane coordinate system comprises: Determining the starting point coordinates of the flow path of the main inlet flow channel according to the minimum position coordinates of the first battery cell group along the X direction; The end point coordinates of the flow channel path of the main inlet flow channel are determined according to the maximum position coordinates of the last battery cell group along the X direction.

10. The method according to claim 8, characterized in that Determining the extension direction of the flow path of the main inlet flow channel according to the starting point coordinates of the flow path of the main inlet flow channel, the end point coordinates of the flow path of the main inlet flow channel and the position coordinates of the box frame includes: Determine to start from the starting point coordinates of the flow path of the main inlet flow channel, extend a first preset distance along the X direction, and extend to a first intermediate position point along the Y direction; wherein the distance between the first intermediate position point and the box frame in the X direction is a second preset distance; Determine a second middle position point extending from the first middle position point to the box frame along the Y direction; wherein the distance between the second middle position point and the box frame along the X direction is a third preset distance; Starting from the second middle position point, it extends along the Y direction to the box frame along the X direction, and extends along the X direction to the end point coordinate of the flow path of the main inlet flow channel.

11. The method according to claim 2, characterized in that The first planning path of determining the coordinates of the end point of the flow path of the main outlet flow channel in the reference map from the origin of the reference map according to the preset search algorithm includes: For each first planned position point, according to a preset search step length, a position point in the reference map that minimizes the value of a preset optimization function is used as the next first planned position point adjacent to the first planned position point; The first planned path is obtained according to each of the first planned position points.

12. The method according to claim 2, characterized in that: The determining of the flow path parameters of the outlet connection flow channel of the thermal management medium according to the first planned path includes: Converting the first planned path into a first planned path in an XY plane coordinate system where the box frame of the target battery is located; If the end point coordinates of the first planned path in the XY plane coordinate system match the end point coordinates of the flow path of the main outlet flow channel, the first planned path in the XY plane coordinate system is used as the flow path of the outlet connecting flow channel of the thermal management medium.

13. The method according to claim 12, characterized in that The method further comprises: If the end point coordinates of the first planned path in the XY plane coordinate system do not match the end point coordinates of the flow path of the main outlet flow channel, adjusting the first planned path in the XY plane coordinate system according to the deviation distance between the end point coordinates of the first planned path in the XY plane coordinate system and the end point coordinates of the flow path of the main outlet flow channel to obtain an adjusted first planned path in the XY plane coordinate system; The first planned path in the adjusted XY plane coordinate system is used as the flow path of the outlet connecting the flow channel of the thermal management medium.

14. The method according to claim 2, characterized in that The flow channel includes an inlet connection flow channel of the thermal management medium, and the flow channel path parameters of the flow channel in the target thermal management device corresponding to the target battery are determined according to the component parameters, including: Taking the inlet position coordinates of the thermal management medium in the component parameters as the origin of the reference map, the box frame position coordinates, the outlet position coordinates of the thermal management medium, the fastener position coordinates, and the starting point coordinates of the flow path of the main inlet flow channel in the component parameters are respectively converted to the box frame position coordinates, the outlet position coordinates of the thermal management medium, the fastener position coordinates, and the starting point coordinates of the flow path of the main inlet flow channel in the reference map; Determine a second planned path from the origin of the reference map to the starting coordinates of the flow path of the main inlet flow channel in the reference map according to a preset search algorithm; wherein the second planned path includes a plurality of second planned position points; The flow channel path parameters of the inlet connection flow channel of the thermal management medium are determined according to the second planned path.

15. The method according to claim 14, characterized in that The second planning path of determining the coordinates of the starting point of the flow path of the main inlet flow channel in the reference map from the origin of the reference map according to the preset search algorithm includes: For each second planned position point, according to a preset search step length, the position point in the reference map that minimizes the value of the preset optimization function is used as the next second planned position point adjacent to the second planned position point; The second planned path is obtained according to each of the second planned position points.

16. The method according to claim 14, characterized in that The determining of the flow path parameters of the inlet connection flow channel of the thermal management medium according to the second planned path includes: Converting the second planned path into a second planned path in an XY plane coordinate system where the box frame of the target battery is located; If the end coordinates of the second planned path in the XY plane coordinate system match the start coordinates of the flow path of the main inlet flow channel, the second planned path in the XY plane coordinate system is used as the flow path of the inlet connecting flow channel of the thermal management medium.

17. The method according to claim 16, characterized in that The method further comprises: If the end point coordinates of the second planned path in the XY plane coordinate system do not match the starting point coordinates of the flow path of the main inlet flow channel, the second planned path in the XY plane coordinate system is adjusted according to the deviation distance between the starting point coordinates of the second planned path in the XY plane coordinate system and the starting point coordinates of the flow path of the main inlet flow channel to obtain an adjusted second planned path in the XY plane coordinate system; The second planned path in the adjusted XY plane coordinate system is used as the flow path of the inlet connecting the flow channel of the thermal management medium.

18. The method according to claim 2, characterized in that The flow channel includes a flow channel in the battery cell group, and determining a flow channel path parameter of a flow channel in a target thermal management device corresponding to the target battery according to the component parameter includes: For each battery cell group, according to the flow path parameters of the main inlet flow channel, the flow path parameters of the main outlet flow channel and the position coordinates of the battery cell group in the assembly parameters, determine the actual cooling width of the module area corresponding to the battery cell group in the Y direction of the XY plane coordinates where the box frame of the target battery is located; Determining a maximum number of flow path paths within the battery cell group according to the actual cooling width, the preset minimum welding width, the preset maximum flow path width, and the preset minimum flow path width; According to the actual cooling width and the maximum number, an actual flow channel width of a flow channel path within the battery cell group and an actual welding width between the flow channel paths are determined.

19. The method according to claim 18, characterized in that The step of determining the actual flow channel width of the flow channel path in the battery cell group and the actual welding width between the flow channel paths according to the actual cooling width and the maximum number includes: determining an actual flow channel width of a flow channel path within the battery cell group according to the actual cooling width, the preset minimum welding width, the preset maximum flow channel width, and the maximum number; An actual welding width between flow channel paths within the battery cell group is determined based on the actual cooling width, the maximum number, and the actual flow channel width.

20. The method according to claim 18, characterized in that The method of determining the actual cooling width of the module area corresponding to the battery cell group along the Y direction of the XY plane coordinates where the box frame of the target battery is located according to the flow path parameters of the main inlet flow channel, the flow path parameters of the main outlet flow channel and the position coordinates of the battery cell group in the component parameters includes: Determining whether a module area corresponding to the battery cell group includes a main inlet flow channel path and / or a main outlet flow channel path according to the flow channel path parameters of the main inlet flow channel, the flow channel path parameters of the main outlet flow channel and the position coordinates of the battery cell group; If the module area corresponding to the battery cell group does not include the main inlet flow channel path and the main outlet flow channel path, the difference between the maximum position coordinate and the minimum position coordinate of the battery cell group along the Y direction is used as the actual cooling width; or, If the module area corresponding to the battery cell group includes the main inlet flow channel path or the main outlet flow channel path, the actual cooling width is determined based on the difference between the maximum position coordinate and the minimum position coordinate of the battery cell group along the Y direction, and the distance along the Y direction of the main flow channel path area corresponding to the main inlet flow channel path or the main outlet flow channel path.

21. The method according to claim 2, characterized in that The flow channel includes the battery cell group connecting flow channel, and the flow channel path parameters of the flow channel in the target thermal management device corresponding to the target battery are determined according to the component parameters, including: Determine the gap area between the battery cell groups in the Y direction of the XY plane coordinate system where the box frame of the target battery is located according to the battery cell group position coordinates in the component parameters; For each of the gap regions, obtaining flow path parameters of flow channels within the battery cell groups of two battery cell groups adjacent to the gap region; The flow path parameters of the inter-battery cell group connecting flow channel between the two battery cell groups are determined according to the flow path parameters of the intra-battery cell group flow channels of the two battery cell groups.

22. The method according to claim 21, characterized in that The determining the flow path parameters of the inter-battery cell group connecting flow channel between the two battery cell groups according to the flow path parameters of the intra-battery cell group flow channels of the two battery cell groups comprises: Determining the flow path parameters of the edge flow channels along the Y direction in the battery cell groups of the two battery cell groups according to the flow path parameters of the flow channels in the battery cell groups of the two battery cell groups; The flow path parameters of the inter-battery cell group connecting flow channel between the two battery cell groups are determined according to the flow path parameters of the edge flow channels along the Y direction within the battery cell groups of the two battery cell groups.

23. The method according to any one of claims 1 to 22, characterized in that The component parameters also include dimensions, and determining the digital model of the target thermal management device according to the component parameters and the flow path parameters includes: Constructing a first thermal management device digital model and a second thermal management device digital model according to the box frame size in the component parameters; Taking the second thermal management device digital model as a reference plane, all flow path paths corresponding to the target battery are drawn in the second thermal management device digital model according to the flow path parameters to obtain a first intermediate thermal management device digital model; A preset modeling operation is performed on the digital model of the first intermediate thermal management device to obtain a digital model of the target thermal management device.

24. The method according to claim 23, characterized in that The performing a preset modeling operation on the digital model of the first intermediate thermal management device to obtain the digital model of the target thermal management device includes: Performing a stretching boss operation on the first intermediate thermal management device digital model according to the flow channel width of each flow channel in the flow channel path parameters to obtain a second intermediate thermal management device digital model; Performing a chamfering operation on the second intermediate thermal management device digital model to obtain a third intermediate thermal management device digital model; A shell extraction operation is performed on the digital model of the third intermediate thermal management device to obtain a digital model of the thermal management device.

25. The method according to claim 24, characterized in that The chamfering operation is performed on the second intermediate thermal management device digital model to obtain a third intermediate thermal management device digital model, including: Performing a boundary extraction operation on the digital model of the second intermediate thermal management device, and determining each first angle and each second angle of the flow channel boss in the digital model of the second intermediate thermal management device; wherein the first angle includes an angle generated by a change in the direction of the flow channel path, and the second angle includes an angle of a top surface of the flow channel boss and an angle between a root of the flow channel boss and the digital model of the first thermal management device in the digital model of the second intermediate thermal management device; A first chamfering operation is performed on each of the first angles, and a second chamfering operation is performed on each of the second angles, to obtain a digital model of the third intermediate thermal management device.

26. The method according to claim 25, characterized in that The performing a first chamfering operation on each of the first included angles includes: determining a type of each of the first angles; A first chamfering operation is performed on each of the first angles according to the type of each of the first angles.

27. The method according to claim 26, characterized in that The determining the type of each of the first angles includes: For each of the first angles, take the corner point of the first angle as the origin and draw corresponding unit vectors along the two sides of the first angle; If the direction of the sum of the two unit vectors points to the outside of the flow path, the first angle is determined to be an inner chamfer; If the direction of the sum of the two unit vectors points to the inside of the flow path, the first angle is determined to be an external chamfer.

28. The method according to any one of claims 1 to 22, characterized in that The obtaining of the component parameters of at least one battery component in the target battery includes: Acquire an assembly digital model of the target battery; According to the assembled digital model of the target battery, component parameters of at least one battery component in the target battery are determined.

29. The method according to claim 28, characterized in that The step of determining the component parameters of at least one battery component in the target battery according to the assembled digital model of the target battery comprises: For each of the battery assemblies, searching the target battery assembly digital model according to the identification of the battery assembly to obtain assembly parameters of the battery assembly; or, A selection instruction for the battery component in the assembly digital model is received, and component parameters of the battery component are determined according to the selection instruction.

30. The method according to claim 29, characterized in that The battery assembly includes a battery cell group, and the searching operation is performed on the assembly digital model of the target battery according to the identification of the battery assembly to obtain the assembly parameters of the battery assembly, including: Searching the assembled digital model of the target battery according to the identification of the battery cell group to obtain digital models of all battery cells of the target battery; Projecting each point in the digital model of all battery cells to the XY plane coordinate system where the box frame of the target battery is located, and determining the position coordinates of each battery cell in the XY plane coordinate system; The battery cell groups are divided according to the preset X-direction threshold, the preset Y-direction threshold and the position coordinates of each of the battery cells in the XY plane coordinate system to obtain component parameters of the battery cell groups.

31. A device for determining a digital model of a thermal management device, characterized in that: The device comprises: An acquisition module, used to acquire component parameters of at least one battery component in the target battery; wherein the battery component includes: a battery cell group, a box frame, an inlet of a thermal management medium, an outlet of a thermal management medium and a fastener; the component parameters include position coordinates; A first determination module, configured to determine a flow channel path parameter of a flow channel in a target thermal management device corresponding to the target battery according to the component parameters, wherein the flow channel is used for circulating a thermal management medium in the thermal management device; A second determination module, configured to determine a digital model of the target thermal management device according to the component parameters and the flow path parameters; Wherein, the flow channel includes an outlet connection flow channel of the thermal management medium, and the first determination module is specifically used for: Taking the outlet position coordinates of the thermal management medium in the component parameters as the origin of the reference map, the box frame position coordinates, the inlet position coordinates of the thermal management medium, the fastener position coordinates, and the end point coordinates of the flow path of the main outlet flow channel in the component parameters are respectively converted to the box frame position coordinates, the inlet position coordinates of the thermal management medium, the fastener position coordinates, and the end point coordinates of the flow path of the main outlet flow channel in the reference map; determining a first planned path from the origin of the reference map to the end point coordinates of the flow path of the main outlet flow channel in the reference map according to a preset search algorithm; wherein the first planned path includes a plurality of first planned position points; determining the flow path parameters of the outlet connecting flow channel of the thermal management medium according to the first planned path; wherein the two ends of the outlet connecting flow channel of the thermal management medium are respectively connected to the main outlet flow channel and the outlet of the thermal management medium.

32. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 30 are implemented.

33. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 30 are implemented.

34. A battery, characterized in that: The battery comprises: a casing, at least one battery cell group, and a thermal management device manufactured based on the method according to any one of claims 1-30.

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