Pulse power amplifier overload protection device

Abstract

The invention discloses an overload protection device for a pulse power amplifier, which comprises a first connecting plate, the side wall of the first connecting plate is connected with a baffle through a stud, the side wall of the baffle is connected with a push plate through a stud, and the push An air bag is placed between the plate and the first connecting plate, the side wall of the push plate is provided with a ventilation hole, the side wall of the push plate close to the ventilation hole is fixed with a linkage rod by a screw, and the end of the linkage rod is welded with a shock absorber, The first contact plate is welded with a splint near the side wall of the shock absorber, and the side wall of the splint is threadedly connected with a second spring. In the present invention, the first contact plate, the slide rail, and the linkage rod And the setting of the shock absorbing device can make the pressure generated by the gas in the air bag heated and expanded, so that the push plate pushes the linkage rod and the shock absorbing device to push the second contact plate away from the first contact plate, so that the circuit can be activated in time and quickly. power off.

Description

Technical field [0001] The invention relates to the technical field of overload protection equipment, and in particular to an overload protection device for a pulse power amplifier. Background technique [0002] The pulse power amplifier is an amplifier whose main purpose is to enhance the signal DC, continuous wave or pulse wave power. The existing overload protector contains a kind of bimetallic sheet, which is formed by pressing two metals with different thermal expansion coefficients. When a current flows through the bimetal strip, the metal strip will heat up. When the current reaches a certain level, the bimetal strip will bend because of the different thermal expansion coefficients of the two metals, thereby breaking the circuit and protecting the electrical equipment. If the metal sheet is not bent enough to cut off the power, it will affect the life of the amplifier. Summary of the invention [0003] The purpose of the present invention is to solve the shortcomings exist...

AI Technical Summary

Problems solved by technology

[0002] The pulse power amplifier is an amplifier whose main purpose is to enhance the signal DC, continuous wave or pulse wave power. In the existing overload protector, there is a bimetallic sheet, which is made of two metals with different thermal expansion coefficients. When the bimetallic sheet has a current passing through it, the metal sheet will heat up. When the current is large enough, the bimetallic sheet will bend because of the different thermal expansion coefficients of the two metals, thereby disconnecting the circuit and protecting the electrical equipment. The metal sheet is not bent enough to cut off the power, which will affect the service life of the amplifier

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