Illumination structure for operation panel

Abstract

An illumination structure for an operation panel can prevent uneven illumination by a low-light level light source, and an operating part of the operation panel can be illuminated evenly, and miniaturization of the operation panel can be achieved, and the operation panel can be designed easily. In the illumination structure for the operation panel (1), the operation panel (1) is provided with the operating part (3), the operating part (3) is provided with operating buttons (7-10) through which operating positions can be selected and sign parts (11-14) used for displaying the specified operating positions, the operation panel (1) is provided with a convex part (2) protruding towards the side of an operator, a light source (4) is stored in a hollow storing space which is formed in the interior of the convex part (2), and one side face, of the convex part (2), being close to one side of the operating part (3) is provided with a lens (illumination part) (6) through which light from the light source (4) can pass.

Description

technical field [0001] The present invention relates to a lighting structure of an operation panel having an operation portion on which an operation button capable of selecting a predetermined operation position and a symbol portion for displaying the predetermined operation position are arranged. Background technique [0002] On the operation panel, for example, there are operation buttons or switch buttons as switching devices. This switching device is used to adjust the temperature or air volume of the heating control device mounted on the vehicle. Display operation buttons are also set on the operation panel. The symbol part (display part) such as characters or graphics of the operation position. [0003] The symbol part on the operation panel is light-transmitting, and the light emitted from the light source arranged on the back of the operation panel can be used to illuminate the symbol part at night, so that the symbol part is highlighted, and the symbol part can be c...

AI Technical Summary

Problems solved by technology

[0008] 1) In order to illuminate a large area where operation buttons, switch buttons, symbols, etc. are arranged with a small amount of light source, the light source must be installed at a position away from the illuminated object. Therefore, the depth of the operation panel is large and high brightness is required light source

[0009] 2) Since the operation part (operation button or symbol part) has to cope with the heat emitted by the light source, it is necessary to separate the light source from the operation part, resulting in a large depth of the operation panel

[0010] 3) If additional components such as lenses are provided in order to solve the overall uneven illumination, the structure will be complicated and the assembly man-hour will be increased

[0011] 4) If the overall uneven lighting is improved by dimming printing, the number of printings will increase, which will lead to an increase in cost

[0012] 5) On the back of the operation panel, not only the light source but also the mechanism part connected with the operation button or switch button should be installed. Therefore, in order to prevent uneven illumination, mutual interference should be considered, which not only reduces the flexibility of the design, but also makes the The overall size increases and the layout of the vehicle deteriorates

[0013] 6) When replacing the light source, the heating control device must be removed from the vehicle, so the replacement of the light source is complicated and takes a long time

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