Calibration method and system of thermal simulation model of circuit board

Abstract

The invention provides a calibration method of a terminal simulation model of a circuit board. The calibration method includes providing a circuit board and establishing a thermal simulation model of the circuit board; testing thermal performance of the circuit board according to the set testing environment so as to obtain a temperature cloud picture of the circuit board; simulating the thermal simulation model thermally to obtain a temperature cloud picture of the thermal simulation model according to the testing environment and adjusting power consumption values of the thermal simulation model during thermal simulation until the temperature cloud pictures of the thermal simulation model and the circuit board satisfy the preset conditions and the power consumption value of the current thermal simulation model is obtained; calibrating the thermal simulation model according to the testing environment and the power consumption value of the current thermal simulation model. According to the calibration method in the embodiment, the simulation results of the thermal simulation model are more real and reflect more real performance of the circuit board, the circuit board can be optimized and guided, and development efficiency of the circuit board is improved. The invention further provides a calibration system of the thermal simulation model of the circuit board.

Description

technical field [0001] The invention relates to the technical field of circuit board design, in particular to a method and system for calibrating a thermal simulation model of a circuit board. Background technique [0002] Compared with other electronics industries, for automotive electronics, the reliability design of its circuit boards is a major aspect that needs to be considered in the design process. This is mainly because the safety of the car is closely related to people. If the electronic device fails in the entertainment system, it may not pose a threat to human life, but if the electronic device fails in the car control system, then human life will be threatened. At stake. As the main carrier of electronic components in electronic equipment - PCB (circuit board), its reliability design is crucial to the reliability and safety of the system. [0003] In order to ensure that the designed PCB board has high quality and high reliability, the designer usually needs to...

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Problems solved by technology

[0006] In summary, most of the power consumption values ​​of the current thermal simulation models are the experience values ​​of engineers, which will have an impact on the accuracy of the simulation and the practical guidance, especially for product designs that have just adopted thermal simulation technology. It is difficult to achieve the desired effect

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