Thin dual-channel potentiometer with switch

Abstract

The invention discloses a thin dual-channel potentiometer with a switch, relating to potentiometer and comprises a potentiometer unit and a switch unit. The potentiometer unit comprises a knob, a folding mover, a terminal, a resistor chip, a support board, a shaft, a body and a clamp ring; the switch unit comprises a left switch end piece, a right switch end piece, a switching piece, a spring, a convex plate and a clamp piece; the folding mover is provided with two brushes and a mechanical switch, thereby realizing the integration of dual channel and the mechanical switch and the integration of thin type, dual channel and the mechanical switch; and the upper end of the shaft is riveted and fastened with the knob. A user installs the potentiometer on a circuit board without screwing the knob with the shaft end by using screws, thereby reducing the installation procedures and saving the installation time. The support board is attached to and in clamping connection with a circuit piece, and the body is attached to and in clamping connection with the support board, thereby orderly connecting the body, the support board and the circuit piece into a whole. The thin dual-channel potentiometer with the switch has small shaking during rotating, high electric stability, long service life which is twice that of the current product and wide application range.

Description

technical field [0001] The invention relates to a potentiometer, in particular to a two-channel potentiometer with switches. Background technique [0002] Thin potentiometers are widely used in audio, radio, car audio-visual equipment, etc. Traditional thin potentiometers have at least the following deficiencies: [0003] One, the traditional thin potentiometer (such as type 12), with switch, but only one channel. [0004] Second, another traditional thin potentiometer (such as 1001 type), which is dual-channel, but without a mechanical switch. [0005] Its three, the knob rotation flexibility is poor, and the knob shakes when turning, and it is easy to rub against the notch of the installation position, and even affects the stability of the electrical performance. [0006] Its four, service life is short. [0007] Its five, installation inconvenience, when the client uses, after potentiometer is assembled on the circuit board, also need to use screw with knob and axle f...

AI Technical Summary

Problems solved by technology

[0005] Third, the flexibility of the knob rotation is poor, the knob shakes when turning, and it is easy to rub against the notch of the installation position, and even affect the stability of the electrical performance

[0006] Fourth, the service life is short

[0007] Fifth, it is inconvenient to install. When the customer uses it, after the potentiometer is assembled on the circuit board, the knob and the shaft need to be fastened with screws before it can be used.

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