A waterproof metal film resistor

Abstract

The invention discloses a metal film resistor capable of preventing water. The metal film resistor comprises a shell, wherein the top of an inner side wall of the shell is fixedly connected to an upper surface of an outer side wall of an installation shell, the top of an inner side wall of the installation shell is fixedly connected to an upper surface of a first fixed block, a lower surface of the first fixed block is fixedly connected with an upper surface of a first bearing, an inner wall of the first bearing is rotatably connected with an outer surface of a rotation shaft, a second bearingsleeves the top of a right side of the shell, and a right end of the rotation shaft penetrates through the second bearing and extends out of the shell. In the metal film resistor capable of preventing the water, the metal film resistor body can be rapidly installed and disassembled by arrangement of the rotation shaft, a first bevel gear, a second bevel gear, a fourth bearing, a fixed post, an insulation sleeve, a first clamping plate and a second clamping plate, time and labor are saved, and the efficiency is high; by arranging the insulation sleeve, the water-prevention performance of the resistor is improved; and by arranging a waterproof protection film, the application effect of the resistor can be prevented from being affected under a humid environment.

Description

technical field [0001] The invention relates to the technical field of metal film resistors, in particular to a waterproof metal film resistor. Background technique [0002] Resistors are used in various electronic components in our daily life. Metal film resistors are often widely used as precision and high stability resistors. They are also commonly used in various radio electronic equipment. Metal film resistors are film type One of the resistors, it uses high-temperature vacuum coating technology to tightly attach nickel-chromium or similar alloys to the surface of the ceramic rod to form a film, after cutting and debugging the resistance value to achieve the final required precision resistance value, and then add appropriate joints to cut , and its surface is coated with epoxy resin for sealing protection. [0003] Metal film resistors are often widely used as precision and high stability resistors, and are also commonly used in various radio electronic equipment. Duri...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a waterproof metal film resistor, which solves the problem that the existing metal film resistor often affects the use of the resistor when it encounters moisture during use, and for the resistor Most of the installation adopts the method of welding, which is time-consuming and labor-intensive, and it is time-consuming and labor-intensive in the process of replacement, which increases cost input and low efficiency.

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