A thin-film resistor resistance trimming device

Abstract

The invention relates to the technical field of thin film resistors, in particular to a thin film resistor resistance value fine-tuning device, which improves the convenience of device resistance value adjustment, increases device use adaptability, improves device work adaptability, and reduces use limitations; A protective box, a thin film resistor, a fixed connecting arm, a fixed plug, a mobile connecting arm and a mobile plug, the thin film resistor is installed on the top of the cavity wall of the protective box, and the top of the mobile connecting arm is installed and electrically connected to the left side of the bottom end of the thin film resistor, The top end of the mobile plug is connected with the bottom end of the mobile connecting arm; it also includes a bearing, a lead screw, a mounting piece, a threaded sleeve, a connecting piece, a first positioning piece and a positioning slide rail, the bearing is installed inside the shaft hole of the protection box, and the lead screw is connected to the The protective box is connected in rotation, the bottom end of the connecting piece is installed on the top end of the mounting piece, the top end of the connecting piece is slidably connected with the bottom end of the thin film resistor, the top end of the first positioning piece is mounted on the bottom end of the mounting piece, and the top end of the movable connecting arm is connected with the bottom end of the positioning slide rail .

Description

technical field [0001] The invention relates to the technical field of thin film resistors, in particular to a thin film resistor resistance trimming device. Background technique [0002] As we all know, the thin-film resistor resistance fine-tuning device is an auxiliary device used to control the current in the circuit, and it has been widely used in the field of thin-film resistors; an existing thin-film resistor resistance fine-tuning device includes Protective box, thin film resistor, fixed connecting arm, fixed plug, movable connecting arm and movable plug, the thin film resistor is installed on the top of the cavity wall of the protective box, the top of the fixed connecting arm is electrically connected with the right side of the bottom end of the thin film resistor, fixed The top of the plug is installed at the bottom of the fixed connecting arm, the top of the moving connecting arm is installed and electrically connected to the left side of the bottom of the film r...

AI Technical Summary

Problems solved by technology

[0002] As we all know, the thin-film resistor resistance fine-tuning device is an auxiliary device used to control the magnitude of the current in the circuit, and it has been widely used in the field of thin-film resistors; an existing thin-film resistor resistance fine-tuning device includes Protective box, thin film resistor, fixed connecting arm, fixed plug, movable connecting arm and movable plug, the thin film resistor is installed on the top of the cavity wall of the protective box, the top of the fixed connecting arm is electrically connected with the right side of the bottom end of the thin film resistor, fixed The top of the plug is installed at the bottom of the fixed connecting arm, the top of the moving connecting arm is installed and electrically connected to the left side of the bottom of the film resistor, the top of the moving plug is connected to the bottom of the moving connecting arm, and the fixed and moving plugs are located at the outer end of the protection box; In the use of an existing thin-film resistor resistance fine-tuning device, it was found that the resistance value of the existing resistor device was fixed and could not be adjusted, resulting in high installation limitations, and the existing device was only suitable for installation and use at designated locations, with poor adaptability. Highly limited use

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