Reinforced insulation protection device of IGBT module and IGBT module

By designing enhanced insulation protection devices on the IGBT module, and using the complementary cooperation of insulating protective parts and grooves, the problem of insufficient insulation capacity of high-power IGBT modules in high-altitude environments is solved, and efficient insulation in high-altitude environments is achieved. Avoid increasing the system current level and design difficulty.

CN113284854BActive Publication Date: 2025-01-10CHINA ACADEMY OF RAILWAY SCI CORP LTD +3
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202110670801.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-06-17
Publication Date
2025-01-10
Estimated Expiration
2041-06-17

AI Technical Summary

Technical Problem

The existing high-power IGBT modules are insufficient insulating capacity in high altitude environments, which leads to the need to select devices with higher voltage levels and limit the operating voltage range when applied in high altitude environments, resulting in increased system current levels and increased system volume and weight. The design difficulty is increased.

Method used

A reinforced insulation protection device for IGBT module is designed. By setting multiple insulation protection parts and grooves on the package housing, the rear convex and side convex are used to complement each other with the terminal surface and side convex to form a longer electrical spacing and creepage distance, thereby enhancing insulation capacity.

Benefits of technology

It effectively improves the insulation capability of the IGBT module, meets the application needs in high altitude environments, and avoids the problems of increasing system current level and increasing design difficulty caused by derating use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN113284854B_ABST
    Figure CN113284854B_ABST
Patent Text Reader

Abstract

The present invention is an enhanced insulation protection device for an IGBT module and an IGBT module, wherein the enhanced insulation protection device for the IGBT module includes a first insulation protection member and a second insulation protection member, the first insulation protection member includes a first protection plate, and a first back convex ridge, a second back convex ridge and a third back convex ridge are convexly provided on the back of the first protection plate. The second insulation protection member includes a first plate body and a second plate body, and a first side convex ridge and a second side convex ridge are respectively provided on the inner side surfaces of the first plate body and the second plate body, and a first arc convex ridge is provided on the first side convex ridge. The present invention can effectively solve the problem of insufficient insulation capacity of existing high-power IGBTs for locomotives and vehicles in high-altitude environments, so as to enhance the insulation capacity of high-power IGBTs for locomotives and vehicles and meet the needs of their application in high-altitude environments.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Insulation protection enhancing device of IGBT module and IGBT module

    CN214705899U