Packaging structure of integrated power control unit

Abstract

The invention provides a packaging structure of an integrated power control unit. Heating elements are not distributed according to a traditional functional module. All the heating elements are distributed in a scattered mode. The problems of the use conditions, power and the like of the heating elements achieving the same function and different functions are comprehensively considered, the heating elements achieving the same function are distributed on a main substrate at intervals, the heating elements achieving the different functions are also distributed on the main substrate at the same time, and therefore under the different use conditions, the heating quantities of different areas on the whole main substrate are even to the great extent. On the one hand, even heating provides the powerful guarantee for even heat dissipation, on the other hand, the simplification of the integrated heat dissipation structure is facilitated, and then the packaging structure is beneficial to meeting the small-size requirement of the control unit. Meanwhile, the even heating is also beneficial to improving the use stability of the main substrate and prolonging the service life of the main substrate.

Description

technical field [0001] The invention relates to a novel packaging structure of an integrated power control unit, belonging to the technical field of packaging of integrated power control units. Background technique [0002] Excessive temperature will affect the performance of the integrated power control unit, and even cause irreversible damage to power devices, affecting the normal use of components. The 10°C rule states that when the device temperature is lowered by 10°C, the reliability of the device will double. Therefore, from the perspective of improving the reliability of power devices, how to reduce the temperature of power devices, especially the temperature of integrated power control units with multiple heating elements has become a research hotspot in various countries. [0003] The traditional main idea of ​​reducing the temperature of the integrated power control unit is to dissipate the heat generated by the functional modules of the integrated power control...

AI Technical Summary

Problems solved by technology

However, depending on the usage requirements, different functional modules need to be enabled at different times, or the number of functional modules enabled at the same time may be different, resulting in different working conditions of the heating elements on the control unit, resulting in different areas on the control unit. The heat is different, that is, the heat is not uniform

In the case of uneven heat generation, when the heat is dissipated through the traditional water-cooled radiator, the heat dissipation is uneven, and it is easy to have the defect of poor heat dissipation in some areas, and even cause damage to the heating elements in some areas.

Images