CN-122021282-A - Method and device for constructing welding structure, electronic equipment, storage medium and product

Abstract

The disclosure relates to a method and a device for constructing a welding structure, electronic equipment, a storage medium and a product. The construction method comprises the steps of obtaining a sample set of the welding structure, wherein the sample set comprises a plurality of groups of sample design values of design parameters of the welding structure and sample performance indexes corresponding to the sample design values of each group, determining a design model of the welding structure according to the sample set, determining a target design value of the design parameters of the welding structure according to the design model, and constructing the welding structure according to the target design value. Therefore, the welding structure is designed through the design model, and the physical iteration is converted into the digitization, so that the period for constructing the welding structure is effectively shortened, the physical iteration times are reduced, and the hardware and simulation cost is effectively reduced. In addition, the optimal target design value can be determined through the digitalized design model, so that the welding structure with optimal performance can be created. And the target design value is determined through the design model, so that the reliability and the accuracy of the constructed welding structure are improved.

Inventors

• DING TAIRAN
• WEI YUNPENG
• Ruan Wanwei
• Shi Chunfu
• LI MOZHI

Assignees

• 小米汽车科技有限公司

Dates

Publication Date

20260512

Application Date

20260121

Claims (16)

1. 1. A method of constructing a welded structure, comprising: acquiring a sample set of a welded structure, wherein the sample set comprises a plurality of groups of sample design values of design parameters of the welded structure and sample performance indexes corresponding to each group of sample design values; determining a design model of the welded structure according to the sample set; Determining a target design value of the design parameter of the welding structure according to the design model; And constructing a welding structure according to the target design value.
2. 2. The method of claim 1, wherein the sample performance metrics include one or more sample performance parameters, and wherein determining a design model of the welded structure from the set of samples comprises: Aiming at each sample performance parameter, taking a plurality of groups of sample design values as model input parameters, taking the sample performance parameter corresponding to each group of sample design values as model output parameters, and determining a sub-model corresponding to the sample performance parameter; the design model comprises a sub-model corresponding to each sample performance parameter.
3. 3. The method of claim 2, wherein determining a target design value for the design parameter of the welded structure based on the design model comprises: And determining target design values of the design parameters of the welding structure according to the sub-model corresponding to each sample performance parameter and the target function of each sample performance parameter.
4. 4. A method according to claim 3, characterized in that the method further comprises: acquiring the weight of each sample performance parameter; the determining the target design value of the design parameter of the welding structure according to the sub-model corresponding to each sample performance parameter and the target function of each sample performance parameter comprises the following steps: and determining a target design value of the design parameter of the welding structure according to the sub-model corresponding to each sample performance parameter, the objective function of each sample performance parameter and the weight of each sample performance parameter.
5. 5. The method of claim 1, wherein prior to constructing a welded structure from the target design values, the method further comprises: Constructing a geometric model of the welding structure according to the target design value; Simulating the geometric model to obtain welding performance indexes of the welding structure; And determining that the welding performance index meets the design requirement.
6. 6. The method of claim 1, wherein the obtaining a sample set of welded structures comprises: obtaining a plurality of groups of sample design values of design parameters of a welding structure; And determining a sample geometric model of the welding structure according to each group of sample design values, and simulating the sample geometric model to obtain a sample performance index corresponding to the group of sample design values.
7. 7. Method according to any one of claims 1-6, characterized in that the welded structure comprises a carrier plate provided with a welding groove for accommodating a welding part, that a recess is provided in the inner wall surface of the welding groove, that the recess can be brought into contact with the welding part during welding, and that the recess has a circular arc-shaped cross-section, and that the design parameters comprise the arc length and/or the radius of the recess.
8. 8. The method of claim 7, wherein the carrier plate is further provided with stress relief grooves, and the stress relief grooves and the solder grooves are provided on different sidewalls of the carrier plate; The groove bottom of the stress release groove is of a planar structure, a continuous first transition section and a continuous second transition section are arranged between the groove bottom and the side wall where the stress release groove is located, the first transition section is recessed into the groove of the stress release groove, the second transition section is protruded out of the groove of the stress release groove, the sections of the first transition section and the second transition section are arc-shaped, and the design parameters further comprise at least one of the radius, the arc length of the first transition section, the radius and the arc length of the second transition section.
9. 9. The method of claim 8, wherein the weld groove has an opening oriented in a first direction, the design parameters further comprising at least one of a distance from a midpoint of a groove bottom of the stress relief groove to the groove bottom of the weld groove in the first direction, a height of the stress relief groove in the first direction, and a depth of the stress relief groove in a second direction; wherein the second direction is the opening orientation of the stress relief groove.
10. 10. The method of claim 8, wherein the sample performance index comprises at least one of an equivalent inductance of the welded structure, a contact area of the weld groove with the welded component, a deformation parameter of the weld groove, and an equivalent strain of the stress relief groove.
11. 11. A welding structure constructing apparatus, comprising: The first acquisition module is configured to acquire a sample set of the welding structure, wherein the sample set comprises a plurality of groups of sample design values of design parameters of the welding structure and sample performance indexes corresponding to each group of sample design values; A first determination module configured to determine a design model of the welded structure from the set of samples; A second determination module configured to determine a target design value for the design parameter of the welded structure based on the design model; A first build module configured to build a welded structure according to the target design value.
12. 12. The apparatus of claim 11, wherein the sample performance indicator comprises a plurality of sample performance parameters, and wherein the first determination module is further configured to: for each sample performance parameter, taking sample design values of a plurality of groups of design parameters as model input parameters, taking the sample performance parameter corresponding to each group of sample design values as model output parameters, and determining a sub-model corresponding to the sample performance parameter; the design model comprises a sub-model corresponding to each sample performance parameter.
13. 13. The apparatus of claim 12, wherein the second determination module is further configured to determine a target design value for the design parameter for the welded structure based on a sub-model corresponding to each of the sample performance parameters and an objective function for each of the sample performance parameters.
14. 14. An electronic device, comprising: A processor; A memory for storing processor-executable instructions; wherein the processor is configured to execute the instructions to cause the electronic device to implement the steps of the method of designing a welded structure as claimed in any one of claims 1-10.
15. 15. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, carries out the steps of the method for designing a welded structure according to any one of claims 1-10.
16. 16. A computer program product comprising a computer program which, when executed by a processor, implements the steps of the method of designing a welded structure according to any one of claims 1-10.

Description

Method and device for constructing welding structure, electronic equipment, storage medium and product Technical Field The disclosure relates to the technical field of power electronic equipment manufacturing, and in particular relates to a method and a device for constructing a welding structure, electronic equipment, a storage medium and a product. Background With the development of power electronics technology to high power density and high integration, the connection technology of the lead wires and the plate conductors of the conductive devices has undergone continuous evolution, and currently, the industry mainly adopts a "fish-fork" type resistance welding technology as a mainstream scheme of the industry. The "harpoon" type resistance welding technique forms a "harpoon" type solder joint structure by resistance spot welding the lead wire of the conductive device after passing through the preformed hole of the solder joint structure. Wherein the weld quality is directly dependent on the design parameters of the welded structure. Therefore, precise design parameters need to be determined at the construction stage of the welded structure to ensure the performance of the welded structure. Disclosure of Invention In order to overcome the problems in the related art, the present disclosure provides a method, an apparatus, an electronic device, a storage medium, and a product for constructing a welding structure. According to a first aspect of an embodiment of the present disclosure, there is provided a method for constructing a welded structure, including: acquiring a sample set of a welded structure, wherein the sample set comprises a plurality of groups of sample design values of design parameters of the welded structure and sample performance indexes corresponding to each group of sample design values; determining a design model of the welded structure according to the sample set; Determining a target design value of the design parameter of the welding structure according to the design model; And constructing a welding structure according to the target design value. By adopting the technical scheme, the design model of the welding structure is obtained through training of the sample set of the welding structure, the target design value of the design parameter of the welding structure is obtained according to the design model, and then the welding structure is constructed according to the target design value. Therefore, the welding structure is designed through the design model, and physical iteration of 'design-sample preparation-test' in the prior art is converted into digitalization, so that the period for constructing the welding structure is effectively shortened, the number of physical iteration is reduced, and the hardware and simulation cost is effectively reduced. In addition, the optimal target design value can be determined through the digitalized design model, so that the welding structure with optimal performance can be created. And the target design value is determined through the design model, so that the reliability and the accuracy of the constructed welding structure are improved. In some possible embodiments, the sample performance metrics include one or more sample performance parameters, and the determining a design model of the welded structure from the set of samples includes: Aiming at each sample performance parameter, taking a plurality of groups of sample design values as model input parameters, taking the sample performance parameter corresponding to each group of sample design values as model output parameters, and determining a sub-model corresponding to the sample performance parameter; the design model comprises a sub-model corresponding to each sample performance parameter. In this way, the period for constructing the welding model is further shortened. In some possible embodiments, the determining the target design value of the design parameter of the welded structure according to the design model includes: And determining target design values of the design parameters of the welding structure according to the sub-model corresponding to each sample performance parameter and the target function of each sample performance parameter. Thus, the target design value of the design parameter of the welding structure can be determined according to the sub-model corresponding to each sample performance parameter and the objective function of each sample performance parameter, and the reliability of the determined target design value is improved. In some possible embodiments, the method further comprises: acquiring the weight of each sample performance parameter; the determining the target design value of the design parameter of the welding structure according to the sub-model corresponding to each sample performance parameter and the target function of each sample performance parameter comprises the following steps: and determining a target design value of the design parameter of