JPH0441639Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to improvements in lighting display devices for in-vehicle audio equipment such as car radios and car stereos.

[Summary of the invention] In a lighting display device for in-vehicle audio equipment, a blinking control means is provided for a first lighting display device and a second lighting display device, and even when the power switch is on, the first lighting display device and the second lighting display device can be blinked at the same time.

[Prior art] In-vehicle audio equipment such as car radios and car stereos uses LED, LCD, and fluorescent displays to display reception and operation. The lighting in the area is provided by LED elements and lamps.
At night, the lighting indicator is also turned on in conjunction with the vehicle's instrument lighting indicator.

A conventional lighting display device of this type was constructed as shown in FIG.

In the figure, reference numeral 1 denotes a first lighting indicator for receiving and indicating the operation of a car radio or car stereo, and the vehicle's ACC power is supplied via a power switch S ₁ and a power circuit P. The ACC power is also supplied to a car stereo or a power amplifier AMP of a car radio via a power switch _S1 .

Reference numeral 2 denotes a second lighting indicator that includes a lamp L for illuminating the operating section of a car radio or car stereo, and power for illumination of the vehicle is supplied through a switch _S0 that is linked with a power switch _S1 . ing.

[Problems to be solved by the invention] For the sake of visibility and safety in a vehicle, it is possible to simultaneously turn off the car radio, car stereo lights, and indicators even if the instrument lights are on. Recently, it has become requested.

However, the problem with the above-mentioned conventional device is that in order to turn on only the vehicle's instrument lights at night, switches S ₀ and S ₁ are turned off and the first and second lighting indicators 1 and 2 of the car radio and car stereo are turned off. When the lights are turned off, the power to the car radio, etc. is also turned off, so the above requirement cannot be met.

[Object of the invention] Accordingly, the object of the invention is to enable the audio equipment to remain in operation without stopping the power supply even if the first and second lighting indicators are turned off simultaneously in the above-mentioned case.

[Means for Solving the Problems] The lighting display device of the present invention achieves the above object by providing a control means for blinking the first and second lighting indicators regardless of whether the power switch is on or off. The main points are as follows.

[Function] When the power switch is on and the in-vehicle audio equipment is operating, the first and second lighting indicators can be turned off by the control means.

[Embodiment] The present invention will be described below with reference to the embodiments shown in the drawings. FIG. 1 shows an embodiment of the lighting display device according to the present invention, and the same reference numerals as in FIG. 3 indicate the same or similar circuits. .

In FIG. 1, 3 is, for example, a control switch.
S ₂ , first and second switch circuits S ₃ and S ₄ , the control means 3 controls the power switch.
Even if _S1 is on and a car stereo or the like is in operation, the first and second lighting indicators 1 and 2 can be turned off.

FIG. 2 shows an example of a specific circuit configuration of the control means 3. In the same figure, Q ₁ to Q ₅ are transistors,
D ₁ and D ₂ are Schottky barrier diodes,
_D3 is a Zener diode, _r1 to _r6 are resistors, C is a capacitor, and _Q3 , _D3 , _r4 , and C constitute a stabilized power supply circuit.

Next, the operation of the above embodiment will be explained.

In the circuit shown in FIG. 2, when illumination power is supplied while control switch _S2 is off, transistors _Q1 and _Q2 are turned on and illumination lamp L is lit. When the power switch S ₁ is turned on, the transistor Q ₅ is turned on, Q ₄ is turned off, and Q ₃ is turned on, so that stabilized power is supplied to the display 2 from the stabilized power supply circuit.

On the other hand, when the control switch S ₂ is on, the power switch S ₁ is on and the illumination power and
When ACC power is supplied, transistor Q ₂
is off, Q ₁ is off and transistor Q ₅ is off,
Since Q ₄ is turned on and Q ₃ is turned off, lamp L and indicator 2 go out at the same time.

Thus, by turning on and off the control switch _S2 , the lamp L and the display 2 can be turned on and off at the same time, and since the power supply circuit 4 and the amplifier AMP are supplied with ACC power via the power switch _S1 , the car stereo etc. can remain in the operating state. be.

[Effects of the invention] As is clear from the above explanation, according to the present invention, while maintaining the operating state of the audio equipment, the first
and a second lighting indicator can be flashed at the same time, so when driving the vehicle at night, the lights of the in-vehicle audio equipment or display may be dazzling, and this may be distracting and interfere with normal driving. In some cases, it becomes possible to listen to news, music, etc. from the in-vehicle audio equipment even when the lights are turned off, which has a great practical effect.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a circuit diagram showing a specific example of the control means of the present invention, and FIG. 3 is a block diagram showing a conventional lighting display device. 1, 2...first and second lighting indicators, 3...control means, _S1 ...power switch, _S2 ...control switch.

Claims (1)

[Scope of Utility Model Registration Claim] A first lighting indicator to which the vehicle's ACC power is supplied via the power switch of the vehicle-mounted audio equipment, and a second lighting indicator to which the vehicle's illumination power is supplied.
A lighting display device for a vehicle-mounted audio device, comprising: a lighting display; and a control means for blinking the first and second lighting indicators regardless of whether the power switch is on or off.