JPH0228108Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a lamp blinking control circuit that controls the lighting state of a lamp.

[Conventional technology]

In recent years, as traffic volume has increased, traffic accidents have also increased. Among traffic accidents, in the case of two-wheeled vehicles,
Even a simple collision can easily lead to a serious accident, making it a major social problem, but it is reported that 75% of motorcycle accidents occur during the day. Therefore, recently more and more motorcycles are turning on their headlights even during the day to alert other vehicles.

[Problem that the invention attempts to solve]

However, there are limits to the ability to alert other vehicles by simply turning on the headlights, and there has been a desire to develop a method that ensures even safer driving.

[Means for solving the problem] In response to such a request, this invention is designed to blink the headlights.

[Effect]

Flashing headlights alert other vehicles.

〔Example〕

FIG. 1 is a circuit diagram showing an embodiment of this invention. In the figure, 1 is an oscillation circuit, 2 is a switching circuit, 3 is a lamp consisting of a main lamp 3a and a sub-lamp 3b, 4 is a switch for setting the lighting or blinking state of the main lamp 3a,
5 is a switch for switching between the main lamp 3a or the sub-lamp 3b, 6 is an AC power source, 7 is a battery, and 8 is a lamp switch.

Oscillation circuit 1 includes resistors 1a to 1e and diode 1f.
~1k, 1p, transistors 1i, 1j, capacitors 1k, 1l, reed relay 1m and its contacts 1m, oscillates at a frequency sufficiently lower than the frequency of AC power supply 6, and synchronizes with the oscillation to activate reed relay 1m. By driving contact 1
A control signal for blinking the main lamp 3a is generated from the main lamp 3a. Note that the diodes 1f and 1g are for backflow prevention to prevent the charge in the capacitor 1k from being discharged through a route other than the transistor 1i.

The switching circuit 2 is composed of resistors 2a to 2d, a triax 2e, and a capacitor 2f.

The operation of the device configured in this way is as follows. First, when the switch 4 is set to the "C" side and the switch 5 is set to the "S" side, the sub lamp 3b is lit, and when the switch 5 is set to the "M" side, the main lamp 3a is lit.

Next, when the lamp switch 8 is turned on, power is supplied from the battery 7 to the oscillation circuit 1, and the oscillation circuit 1 starts oscillating. The oscillation frequency at this time is determined by the charging time constant of the reed relay 1m, the resistor 1c, and the capacitor 1k, and the discharging time constant of the capacitor 1k, the transistor 1i, the resistor 1b, the resistor 1d, and the transistor 1j. When the oscillation circuit 1 starts oscillating, the reed relay 1m is driven at the oscillation frequency, and the contacts 1m are turned on and off.

When the switch 4 is set to the "I" side in this state, the triac 2e is turned on when the contact 1n is on, and current is supplied to the main lamp 3a. The oscillation frequency of the oscillation circuit 1 is set sufficiently lower than the frequency of the AC power supply 6, so when the contact 1n is on, the polarity of the AC power supply 6 is reversed, but since the triact is bidirectional, the main Current continues to flow through the lamp 3a.

Next, the contact 1n is turned off, and when the current flowing through the triax 2e becomes less than the holding current near the zero cross point of the power supply, the triax 2e
is turned off. Therefore, the current supplied to the main lamp 3a is also turned off, and this state continues until the contact 1n is turned on and the triac 2e is turned on. Therefore, the main lamp 3a blinks in synchronization with the oscillation frequency of the oscillation circuit 1. Note that the number of blinks is set to, for example, about 150 to 240 cycles per minute.

In this way, the main lamp 3a is turned on at night,
By flashing during the day, you can alert other vehicles even during the day, allowing you to drive safely.

Figures 2 and 3 are circuit diagrams showing other embodiments. Figure 2 is an example in which the intermittent light from the light emitting diode 1r is detected by Cds2g, and Figure 3 is a photo detection of the intermittent light by the light emitting diode 1r. Triack 2h
This is an example of detection using . Note that 1q is resistance. By doing this, there are no moving parts,
It can have a longer lifespan than the one shown in FIG.

[Effect of idea]

As explained above, this invention has the effect of making the lamp blink, which can draw the attention of other vehicles and enable safe driving.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing one embodiment of this invention, and FIGS. 2 and 3 are circuit diagrams showing other embodiments. 1...Oscillation circuit, 2...Switching circuit, 3
...Lamp, 4,5,8...switch.

Claims (1)

[Scope of utility model registration request] In a lamp blinking control circuit that is driven by an AC power source and controls the blinking of the lamp, there is a switching circuit that turns on the lamp when a control signal is supplied and turns off the lamp when the control signal is cut off, and a switching circuit that controls the lamp blinking based on the frequency of the AC power source. 1. A lamp blinking control circuit comprising: a control signal generation circuit that generates a control signal with a sufficiently low frequency.