Unlock instant, AI-driven research and patent intelligence for your innovation.

Power terminal group and power electronic module

A terminal group and power technology, applied in circuits, electrical components, electric solid devices, etc., can solve the problems of increasing busbar inductance, high stray inductance, uneven current distribution of eddy current loss, etc., to reduce the overall inductance and low inductance. Effect

Active Publication Date: 2017-08-08
ZHUZHOU CRRC TIMES SEMICON CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The bus bar terminal structure of the popular power modules currently on the market usually adopts a straight side-by-side structure formed by the connection of the anode terminal 11' and the cathode terminal 12', such as Figure 8 As shown, the eddy current loss and uneven current distribution caused by the complex pin structure of the busbar terminal may increase the inductance of the busbar instead; moreover, the busbar terminal of this straight-type side-by-side structure has a large current path, making This type of busbar terminal has a high stray inductance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power terminal group and power electronic module
  • Power terminal group and power electronic module
  • Power terminal group and power electronic module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0046] like Figure 1 ~ Figure 3 Shown is a first embodiment of the power terminal set of the present invention. exist image 3 A schematic structural diagram of the power terminal set 1 is shown in . The power terminal set 1 mainly includes an anode terminal 11 and a cathode terminal 12 .

[0047] exist figure 1A schematic structural view of the anode terminal 11 is shown in . The anode terminal 11 is mainly composed of a mounting portion 112 , a vertical connection portion 113 , two first bent portions, two L-shaped overlapping portions 116 and four pins 117 . Wherein, the mounting portion 112 is provided with a mounting hole 111 . One end of the vertical connecting portion 113 is connected to the installation portion 112 , and the other end is connected to one end of the two first bending portions. And the two first bending parts are...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a power terminal group and a power electronic module. The power terminal group includes an anode terminal and a cathode terminal. The terminals are constructed such that the structures of the two cooperate with each other so that the inductances generated by the anode terminal and the cathode terminal can cancel each other out when current is applied. A power electronics module comprising this power terminal set has a low inductance.

Description

technical field [0001] The invention relates to the technical field of power electronic modules, in particular to a power terminal set and a power electronic module including the power terminal set. Background technique [0002] High-power converters are more and more widely used in rail transit, industrial converters, new energy and other fields. The shorter and shorter switching time of the power semiconductor chip IGBT used in high-power converters leads to excessively high dv / dt and di / dt. Due to the existence of parasitic inductance (or stray inductance), when the IGBT is turned off Spike voltage will be generated. Generally, the peak voltage on the IGBT is easy to appear as an overvoltage exceeding the maximum allowable voltage. This overvoltage plus the DC bus voltage may cause V ce >V ce(Max) , the overvoltage may directly cause damage to the IGBT chip, which will lead to a more important influence of the distributed stray inductance on the turn-off characterist...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01L23/488H01L25/00
CPCH01L25/00H01L23/488
Inventor 戴小平吴义伯齐放刘国友
Owner ZHUZHOU CRRC TIMES SEMICON CO LTD