JPS6235225Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a switch knob illumination device for a rear differential camera for a vehicle.

Generally, an operation display section is provided near the switch knob of the rear differential follicle operating switch, and when the switch knob is turned on to activate the rear differential follicle device, the indicator lamp on the operation display section lights up so that the operation of the rear differential follicle device can be visually confirmed. I have to. However, with such a conventional device, when operating the rear defogger device at night, the position of the switch knob cannot be confirmed, making operation difficult.

In view of this conventional situation, the present invention is designed so that the display lamp of the operation display unit described above can be illuminated with varying illuminance levels depending on whether the rear defogger is activated or the night illumination. It is illuminated so that its position can be easily confirmed.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In Fig. 1, reference numeral 1 denotes a rear defogger device (a hot wire is printed and wired on the rear window glass).The rear defogger device 1 is activated by turning on a rear defogger operation switch 2, and prevents fogging of the rear window glass (not shown). . Reference numeral 3 denotes an indicator lamp connected in parallel with the rear differential camera unit 1. As shown in FIG. The operation display device is disposed at an intermediate portion between the operation display section 12 and the night illumination section 13, and is turned on at the same time as the rear defogger device 1 is turned on. The section 13 is illuminated. The operation display circuit that lights up this display lamp 3 is a light switch 4 which will be described later.
A diode 8 is provided to prevent current from flowing to the rear defogger device 1 when the camera is turned on. Then, when the light switch 4 is turned on, the marking lamp operating circuit and the operation display circuit turn on the marking lamps 5, and when the light switch 4 is turned on, the marking lamps 5 are turned on. It is connected with a dimmer circuit that dims the light and turns on the light. This dimming circuit changes the illuminance level by dropping the voltage when the indicator lamp 3 is turned on by the light switch 4 so that the illuminance level of the indicator lamp 3 becomes lower than when the rear defogger operating switch 2 is turned on. and a diode 7 that prevents current from flowing to the side marker lights 5 when the rear defogger operating switch 2 is turned on.

According to the embodiment device having the above configuration, when the light switch 4 is turned off and the rear defogger operation switch 2 is turned on, the rear defogger operation switch 2 is operated as described above, and the rear window glass (not shown) is operated as described above. At the same time, by lighting the display lamp 3, the operation display section 12 and the night illumination section 13 are illuminated to visually confirm that the rear defogger device 1 is operating. Next, at night, when the light switch 4 is turned on and the vehicle width lights 5 are turned on while the rear differential switch 2 is turned off, the indicator lamp 3 is also turned on, but in this case the resistor 6
Since the voltage is dropped by
The illuminance level is low, and as a result, the operation display section 12
In addition, the night illumination unit 13 is dimly illuminated to the extent that the switch knob 11 on the base plate 10 can be visually recognized, so that the position of the switch knob 11 can be easily confirmed. Also, while light switch 4 is turned on, rear differential switch 2 is turned on.
When turned on, since the light does not pass through the resistor 6, the illuminance level of the operation display section 12 and the night illumination section 13 changes and lights up brightly, allowing confirmation of operation. Note that the visibility can be further improved by changing the color of the operation display section 12 and the night illumination section 13 using color polarizing plates or the like.

As described above, according to the device of the present invention, the indicator lamp that indicates the operation of the rear differential camera device can be dimmed and turned on by turning on the light switch that turns on the vehicle width lights at night. There is an advantage in that the area around the switch knob can be illuminated to facilitate position confirmation.
In addition, since it is only necessary to incorporate two diodes and a resistor into an existing switch unit, there is no need to increase the size of the switch unit.Moreover, diodes are small, inexpensive, have a long life, have strong vibration resistance, and have low power consumption. Because of these characteristics, it is suitable as a switch knob lighting device for a rear differential camera for vehicles that requires light weight, vibration resistance, and energy saving.

[Brief explanation of the drawing]

Figure 1 is a wiring diagram showing one embodiment of the present invention, Figure 2 is a wiring diagram showing an embodiment of the present invention.
The figure is an external view of one embodiment of the lighting device. 1... Rear differential camera device, 2... Rear differential camera operating switch, 3... Display lamp, 4... Light switch, 5... Vehicle side light.

Claims (1)

[Scope of utility model registration request] A defogger operation circuit that operates a rear defogger device when a rear defogger activation switch is turned on is provided with an operation display circuit that is connected in parallel with the rear defogger device and lights up an indicator lamp of an operation display device when the rear defogger activation switch is turned on. A lane marking lamp operating circuit that turns on the side marker lights when a switch is turned on and the operation display circuit are connected by a dimming circuit that turns on the indicator lamp when a light switch is turned on, and the operation display The circuit includes a diode that blocks the flow of current to the rear defogger unit when the light switch is turned on, while the dimming circuit includes a resistor and a diode that blocks current flow to the side marker lights when the rear defogger activation switch is turned on. A switch knob lighting device for a rear differential for a vehicle, which is equipped with a diode.