Instrument illuminating apparatus

Abstract

The invention discloses an instrument illuminating apparatus which comprises an instrument panel, wherein a display area, a reflecting area and a working area are sequentially formed in the instrument panel; a mounting groove and a transparent cover are arranged on the top of the display area; a reflective plate is arranged at the bottom of the transparent cover; the mounting groove is mounted on an inner side wall of the transparent cover; annular lamp tubes are mounted inside the mounting groove, and a lampshade is arranged on the top of the annular lamp tubes; a display panel is arranged on the bottom surface of the display area; a pointer is mounted on the display panel and penetrates through the reflecting area to be connected with a drive element in the working area; the reflecting area comprises reflective plates arranged in a staggered manner and light-emitting diodes arranged among the reflective plates; connectors of the light-emitting diodes and the annular lamp tubes are welded on a PCB (Printed Circuit Board); a drive element, a radiating channel and a radiator are arranged in the working area; the drive element, the light-emitting diodes and the annular lamp tubes are arranged on the radiating channel; and the radiating channel is communicated with the radiator.

Description

technical field [0001] The invention relates to the technical field of instrument equipment, in particular to an illuminating device for an instrument. Background technique [0002] In the instrument panel of a motor vehicle, in order to make driving at night more clearly visible and safer, an instrument lighting panel with an internal light source is generally used. The usual method is to use two patch-type red or white light-emitting diodes as light sources , integrated on the instrument circuit board, the light emitted by the light-emitting diode is irradiated and reflected by the light-receiving surface of the pointer and the reflection surface, thus playing the role of illumination. [0003] However, this design plays a lighting role because the light emitted by the light-emitting diode is reflected by the light-receiving surface of the pointer and the reflective surface. Because the environment in which the instrument is used is changeable, the brightness reflected by ...

AI Technical Summary

Problems solved by technology

[0003] However, this design plays a lighting role because the light emitted by the light-emitting diode is reflected by the light-receiving surface of the pointer and the reflective surface. Because the environment in which the instrument is used is changeable, the brightness reflected by the entire lighting panel and the instrument pointer changes at different times. It is different from the location, that is, the surface brightness is uneven or flickering, which affects the overall visual effect and poor practicability

Part of the light changes the refraction effect due to the external environment, so it cannot illuminate the pointer of the instrument, and the light efficiency is low

There is also a design that directly integrates light-emitting diodes on the instrument pointer, but due to the variety of instrument pointers, this design makes the structure of the instrument pointer complicated, and its development and manufacturing costs are greatly increased.

Images