Protecting and isolating device and IGBT power module

An isolation device and power module technology, applied in the field of converters, can solve the problems of difficulty in manufacturing and low strength of the protection isolation device, and achieve the effects of easy processing, meeting electrical isolation requirements, and reducing processing difficulty and cost.

Active Publication Date: 2014-07-09
CRRC YONGJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a protective isolation device and an IGBT power module, which are used to solve the technical defects of low strength and difficult manufacture of the protective isolation device in the prior art

Method used

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  • Protecting and isolating device and IGBT power module
  • Protecting and isolating device and IGBT power module
  • Protecting and isolating device and IGBT power module

Examples

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Embodiment Construction

[0025] refer to figure 1 with 2 , figure 1 Schematic diagram of the structure of the first group of isolation plates of the protection isolation device provided by the embodiment of the present invention; figure 2 It is a schematic structural diagram of the second group of isolation plates of the protection isolation device provided by the embodiment of the present invention.

[0026] Such as figure 1 with 2 As shown, the protective isolation device provided in this embodiment includes a first group of isolation plates 1 and a second group of isolation plates 2; the first group of isolation plates 1 and the second group of isolation plates 2 both include support plates and insulating plates, and the support plates The insulating plate is a long U-shaped groove plate structure, and the insulating plate is attached to the inner side of the U-shaped groove of the supporting plate. The lower part of the supporting plate is provided with a mounting foot plate 14 for connecting...

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Abstract

The invention provides a protecting and isolating device and an IGBT power module. The protecting and isolating device comprises a first group of isolating plates and a second group of isolating plates. The first group of isolating plates comprises supporting plates and insulating plates. The second group of isolating plates also comprises supporting plates and insulating plates. The supporting plates and the insulating plates are of long-strip U-shaped trough plate structures. The insulating plates are attached to the inner sides of U-shaped grooves of the supporting plates. Installation foot plates connected with an installation face of a water cooling substrate of the IGBT power module are arranged at the lower portions of the supporting plates. According to the protecting and isolating device and the IGBT power module, the IGBT power module is separated from the outside through the first group of isolating plates and the second group of isolating plates. The first group of isolating plates and the second group of the isolating plates are of the structures with the supporting plates and the insulating plates combined, so that the electric isolation requirement is met and the mechanical strength can be improved. Furthermore, the supporting plates and the insulating plates are easy to process, and the processing difficulty and the processing cost can be reduced.

Description

technical field [0001] The invention relates to converter technology, in particular to a protection isolation device and an IGBT power module. Background technique [0002] With the development of AC drive technology for electric locomotives, converters using high-frequency and high-power Insulated Gate Bipolar Transistor (IGBT) power modules as switching elements are increasingly used. When the high-power IGBT power module is working, the voltage within a certain range is very large. In order to ensure the safety of the IGBT power module itself and the outside world, it is necessary to isolate the high voltage on the IGBT power module from the outside world, and to prevent the outside world from affecting the IGBT power module. damage. [0003] The existing protective isolation device is an insulating part made of insulating material, the mechanical strength of the existing insulating part is not up to the requirement, and it is easy to be broken and deformed; moreover, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00
Inventor 柴媛张晋芳杨春宇梁海刚
Owner CRRC YONGJI ELECTRIC CO LTD
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