Power semiconductor device protection device for rolling mill

Abstract

The invention relates to the technical field of semiconductor devices, and discloses a power semiconductor device protection device for a rolling mill. The power semiconductor device protection device for the rolling mill comprises a box body, wherein strip-shaped blocks are bolted on two sides of the inner wall of the box body; a moving rod is slidably connected between the two strip-shaped blocks; and reset springs are clamped on the back surfaces of the inner walls of the strip-shaped blocks. According to the power semiconductor device protection device for the rolling mill provided by the invention, through the arrangement of a movable rod, a first supporting plate, a first spring, a swing rod, a telescopic rod, a second supporting plate, a clamping plate, a fan frame, an electric fan and a vent hole, the problems that a traditional protector cannot effectively fix a device, the device is prone to rolling at will in the transportation process, collision is caused to damage the device, the use of the device is influenced by long-time dust accumulation, and the device is not suitable for long-term working at a high temperature due to more heat generated by power loss are solved, and the power semiconductor device protection device for the rolling mill has the advantages of firmness in installation and capability of cooling, and has a certain dustproof effect.

Description

technical field [0001] The invention relates to the technical field of semiconductor devices, in particular to a power semiconductor device protection device for a rolling mill. Background technique [0002] Power semiconductor devices, also known as power electronic devices, are the basis of power electronics technology and the core devices that constitute power electronic conversion devices. The most important types of power semiconductor devices include pin diodes, thyristors, gate turn-off thyristors, gate For pole-commutated thyristors, power field-effect transistors and insulated gate bipolar transistors, the current traditional protection devices do not have the ability to effectively fix the devices, which may easily cause the devices to roll randomly during transportation and cause damage to the devices due to collisions. The accumulation of dust over time will also affect the use of the device. At the same time, due to the power loss, it will generate more heat, so...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a protection device for power semiconductor devices used in rolling mills, which has the advantages of firm installation and cooling, and solves the problem of traditional protection devices that do not have effective fixation for devices, which may easily cause devices to roll randomly during transportation and cause The collision will cause damage to the device, and the accumulation of dust for a long time will also affect the use of the device. At the same time, due to the power loss, it will generate more heat, so it is not suitable to work at a higher temperature for a long time.

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