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IGBT module assembly

A component and cold plate technology, applied in the field of IGBT module components, can solve problems such as electrical safety accidents, achieve the effect of preventing electrical safety accidents, avoiding short circuits between electrodes, and expanding the application field

Inactive Publication Date: 2016-07-20
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an IGBT module assembly to solve the problem of electrical safety accidents caused by the short circuit between the terminals on the IGBT module caused by condensed water in the existing liquid-cooled heat dissipation method

Method used

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Examples

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Effect test

Embodiment 2

[0034] In this embodiment, on the basis of Embodiment 1, the structure of the water guide groove 4 is further improved, specifically, as Figure 4 As shown, in this embodiment, a semicircular open groove 5 is provided on the side 22 of the IGBT module 2 near the end of the cold plate 1, and the water guide groove 4 is formed together through the open groove 5 and the cold plate 1. When the condensed water accumulates, it can pass through The above-mentioned water guiding groove 4 directly flows out of the IGBT module 2 . By providing the opening groove 5, when the IGBT module assembly is placed vertically, the condensed water will flow into the water guide groove 4 formed by the opening groove 5 and the cold plate 1 along the surface and side 22 of the cold plate 1, and will not flow into the IGBT module 2. On the end surface 21 where the connection terminal 3 is located.

[0035] The rest of the structure is the same as that of Embodiment 1, and will not be repeated here.

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Abstract

The invention belongs to the field of electronic elements, and discloses an IGBT module assembly. The IGBT module assembly comprises a cooling plate and an IGBT module fixedly connected onto the cooling plate, wherein the end surface, far away from the cooling plate, of the IGBT module is provided with wiring terminals; the IGBT module comprises a side surface adjacent to the end surface; and the side surface and the cooling plate form a water guide groove. Through enabling the side surface and the cooling plate to form the water guide groove, a large amount of condensed water gathered on the cooling plate is guided by the water guide groove to flow out, the condensed water can be prevented from flowing to the end surface provided with the wiring terminals of the IGBT module, a condition of an inter-electrode short circuit between wiring terminals on the IGBT module can be avoided, and happening of an electrical safety accident can be prevented. The IGBT module can work safely and efficiently in a high-power cooling situation, and the application field of the IGBT module is expanded.

Description

technical field [0001] The invention relates to an electronic component, in particular to an IGBT module assembly. Background technique [0002] The IGBT module is a modular semiconductor product that is packaged by IGBT (insulated gate bipolar transistor chip) and FWD (freewheeling diode chip) through a specific circuit bridge. The heat dissipation efficiency of the IGBT module is the key to its performance and reliability. factor. [0003] At present, two heat dissipation methods, air-cooled and liquid-cooled, are mainly used to solve the heat dissipation problem of the IGBT module. The air-cooled heat dissipation is to use a fan to blow or draw air to dissipate heat for the IGBT module. This method is simple in structure, low in price, safe and reliable, but The noise is loud and the heat dissipation efficiency is not high, so it is difficult to apply in high-power occasions with serious heat generation. [0004] Liquid cooling is to use a refrigerant liquid with a larg...

Claims

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Application Information

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IPC IPC(8): H01L23/473H01L25/07
CPCH01L23/473H01L25/07H01L23/367H01L2924/13055H01L25/072H01L25/16H01L2924/00H01L23/3672H01L23/3675H01L24/42H01L2224/42
Inventor 王京蒋世用张羽刘克勤
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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