A topology optimization design method for the liquid flow channel of the cold plate of the power electronic integrated module

Abstract

The invention relates to a topological optimization design method for a cold plate liquid flow channel of an electric-electronic integration module. The method comprises the following steps: firstly establishing a finite element module, setting a growing initial point and finishing parameter initialization of self-adaption growth; then protocoling a self-adaption growth strategy of the cold plate liquid flow channel and giving out a method for determining growth direction and furcation of the cold plate liquid flow channel; finally performing step-by-step iteration growth of the cold plate liquid flow channel. By means of the topological optimization design method disclosed by the invention, optimized cold plate liquid flow channel distribution can be directly obtained; meanwhile, constraint of ground structure nodes is got rid, and the optimized cold plate liquid flow channel distribution is closer to the optimal result; an excessive demand that a designer has a lot of design experience is avoided, work of simulation, improvement and repeated simulation is prevented from being repeated, and work efficiency and design quality are obviously improved.

Description

technical field [0001] The invention belongs to the field of liquid flow channel layout design, and in particular relates to a topology optimization design method for a cold plate liquid flow channel of a power electronic integrated module. [0002] technical background [0003] The layout design of the liquid flow channel of the cold plate plays a very important role in improving the performance of high-power integrated power electronic equipment; in traditional industrial production, designers usually design cold The layout of the liquid flow channel of the cold plate, and then use the analysis software to simulate or make a sample test to find out the deficiencies in the design, and then correct the layout of the cold plate liquid flow channel. This layout design method of the cold plate liquid flow channel, which relies too much on the designer's experience and intuition, lacks a theoretical basis and requires a lot of experiments and corrections. Not only is the material...

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Problems solved by technology

The layout design method of the cold plate liquid flow channel, which relies too much on the experience and intuition of the designer, lacks a theoretical basis and requires a lot of experiments and corrections. It not only wastes materials and fails to achieve the goal, but also has low design efficiency and increases the cost of the enterprise. ; and from the layout configuration of the cold plate liquid flow channels, most of them adopt a parallel or serpentine layout. Although the form is simple and easy to process and manufacture, it does not necessarily match the actual heat generation situation, and it is difficult to guarantee the layout design. rationality

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