Control device with rotary switch back-lit by a light guide

摘要

A control device, in particular for a motor vehicle, including a rotary switch and a peripheral display zone which are arranged on a board and which are back-lit by a back-lighting device, the rotary switch including a knob which is mounted in rotation relative to the board about an axis, the knob being provided with an illuminated pointer turning with the knob, the peripheral display zone including fixed illuminated symbols arranged around the rotary switch, characterized by the fact that the back-lighting device includes at least one light source which cooperates with a light guide lighting both the illuminated pointer and the peripheral display zone.

主权项

1. A control device comprising:
a board; a rotary switch and a peripheral display zone which are arranged on the board; and a back-lighting device designed to backlight the rotary switch and the peripheral display zone, the rotary switch including a knob which is mounted in rotation relative to the board about an axis, the knob being provided with an illuminated pointer turning with the knob, the peripheral display zone including fixed illuminated symbols arranged around the rotary switch, wherein the back-lighting device includes at least one light source which cooperates with a light guide lighting both the illuminated pointer and the peripheral display zone, the light guide being made in one piece and fixed on the board, wherein the peripheral display zone is back-lit by a generally transversal portion of the light guide, wherein the light source is transversally offset relative to the rotary switch and relative to the peripheral display zone, and by the fact that the light guide includes a guiding portion which extends from the light source to a peripheral edge of the transversal portion, and wherein the guiding portion includes an inclined portion between the light source, which is generally situated at the level of the board, and the peripheral edge of the transversal portion.