The invention discloses a luminous
potentiometer, which comprises a shell with an open top and a cover plate covering the shell, a chute is arranged on the cover plate, and a push
handle is arranged in the chute; The
brush part is connected, and a
resistor body is provided inside the shell, and an arc-shaped groove matching the
brush part is arranged on the
resistor body, and the
brush part is connected with the arc-shaped groove by
sliding contact; the upper end of the push
handle is threadedly connected with the push cap, and the push The cap includes a
metal cap provided with an internal thread, and the outer surface of the
metal cap is provided with a plastic cap; the outer surface of the
metal cap has a luminous
coating, and the plastic cap is made of transparent plastic. In the luminous
potentiometer of the present invention, when the
resistor body wears out, the arc-shaped groove always limits the position of the brush part, so as to maintain the stability and positioning accuracy when the push
handle is pushed. The push cap adopts the matching structure of metal cap and plastic cap, which has good performance. The luminous
coating inside the push cap has a luminous function, which is convenient for people to use at night.