KR200274133Y1 - A flasher circuit warning light - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs.

The present invention relates to a warning light mounted on emergency and emergency vehicles, such that the urgency of the warning light is doubled so as to extend the lamp life of the warning light shortened when the effective warning warning effect and urgency are doubled, and also illuminance. And flashing speed can be adjusted.

I. The technical problem the invention is trying to solve.

Conventional warning lamps use a strobe method using a lamp and an electric motor or a xenon discharge tube for a warning effect. However, when using a lamp and an electric motor, the direction of the light is rotated because it uses a motor to rotate the reflector. Due to the limitations, the surroundings are dark and the lifespan of lamps and electric motors should be taken into consideration for long-term use, and it is cumbersome in repairs due to breakdowns. In addition, the above-mentioned disadvantages are compensated for when the strobe method is used, but according to the flashing control method by the constituent circuit, the high voltage is always formed at both terminals of the xenon discharge tube, which shortens the life of the xenon discharge tube and the number of flashes When the number of flashing is extended to double the sense of urgency in two times, there is a disadvantage that causes a shortened life of the xenon discharge tube.

In addition, the flashing of the strobe light using the strobe method is impossible to control the brightness, causing the visual damage of people around.

All. The gist of the solution of the invention.

In order to solve the problems described above, the present invention uses a strobe method, indicating that a high voltage is always formed at both terminals of a xenon discharge tube by an inverter circuit and a smoothing circuit which form a high voltage of direct current. By controlling the inverter circuit to be turned on / off instantaneously using an in-pulse, the voltages formed at both ends of the xenon discharge tube can be formed only when the xenon discharge tube is discharged to extend the life of the xenon discharge tube, and the number of continuous flashes It is possible to maximize the warning effect of warning lights by enabling two to three times in a row.

In addition, it is possible to adjust the illuminance in various stages by varying the voltage at both ends of the xenon discharge tube.

la. Important uses of the devise

Warning light

Description

Flashing control circuit of warning lights. {A flasher circuit warning light}

The present invention relates to a warning light mounted on emergency and emergency vehicles, such that the urgency of the warning light is doubled so as to extend the lamp life of the warning light shortened when the effective warning warning effect and urgency are doubled, and also illuminance. And the flashing speed can be adjusted to be used more effectively.

Conventional warning lamps use a strobe method using a lamp and an electric motor or a xenon discharge tube for a warning effect. However, when using a lamp and an electric motor, the direction of the light is rotated because it uses a motor to rotate the reflector. Due to the limitations, the surroundings are dark, and the service life of lamps and electric motors must be taken into consideration for long-term use.

In addition, when the strobe method is used, the above-mentioned disadvantages are compensated for, but according to the flashing control method by the constituent circuit, since high voltage is always formed at both terminals of the xenon discharge tube, it causes the life of the xenon discharge tube to be shortened. If the number of blinks is extended in order to double the sense of urgency at the current number of blinks of two times, there is a disadvantage of causing a shortening of the life of the xenon discharge tube.

In addition, the flashing of the strobe light using the strobe method is impossible to control the brightness, causing the visual damage of people around.

Therefore, in order to solve the problems described above, the present invention uses a strobe method to brighten the surroundings, and a high voltage is always formed at both terminals of the xenon discharge tube by an inverter circuit and a smoothing circuit which form a high voltage of direct current. By controlling the inverter circuit to be turned on / off instantaneously using pulse, an input / output signal of a warning light circuit, the voltage formed at both ends of the xenon discharge tube is formed only when the xenon discharge tube is discharged, thereby extending the life of the xenon discharge tube. It is possible to maximize the warning effect of the warning light by enabling the number of consecutive flashes from two to three times in a row.

In addition, it is possible to adjust the illuminance of the warning light in several stages by varying the voltage at both ends of the xenon discharge tube using a relay switch.

1 is a block diagram of a left warning light circuit.

2 is a left trigger circuit configuration diagram.

3 is a microprocessor output pulse time chart.

Explanation of symbols on the main parts of the drawing

A: Microprocessors B, G: Photo Kepler

C: Oscillation IC D: FET Switch Circuit

E: transformer F: rectifier circuit

H: Trigger circuit I: Xenon discharge tube

J: Relay switch C1, C2, C3: Capacitor

1: CPU output pulse for inverter control 2: CPU output pulse for left beacon light control 3: CPU output pulse for right beacon light control

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the configuration and the operation method and characteristics of the subject innovation.

The present invention is a microprocessor (A) for generating the pulse (PLUSE) (1, 2, 3) wave of Fig. 3, which is used as an operation signal for flicker control of a warning lamp, an oscillation IC (C) serving as an inverter, and a voltage gain. Or a photocoupler (B, G) having an inverting function, a voltage conversion circuit using a FET switch circuit (D) and a transformer (E), a trigger circuit (H) for inducing discharge of the xenon discharge tube (I), and each function It consists of the relay switching circuit J which is in charge of.

Referring to the operation sequence of the components according to the passage of time, first, the pulses (1, 2, 3) output from the microprocessor (A) are the pulses shown in the time chart of FIG. 3, and the inverter control pulse (1) and the left warning lamp The control pulse 2 is a left beacon light circuit, and the inverter control pulse 1 and the right beacon light control pulse 3 are input to a right beacon light circuit to be controlled. Since the operation principle of the left and right sides of the beacon is the same, the xenon discharge tube I can be connected in parallel to the output of each beacon circuit, so that it can be additionally mounted / controlled. First, the operation of the warning light on the left side will be described.

The input pulses 1 and 2 of the left beacon light circuit shown in the time chart of FIG. 3 pass through the photocoupler B so that the inverter control pulse 1 is an oscillating IC, and the left beacon light control pulse 2 is amplified again. It is inverted once through photocoupler G. The inverted left beacon control pulse 2 is used as a control signal of the left trigger circuit H.

The oscillation IC (C), which is operated by the inverter control pulse (1), has the function of an inverter. When the input is low, the oscillation IC (C) generates a waveform of 20k to 40kHz at two output terminals, and it is high. The oscillator IC is turned off (ie '0' is output). At this time, the phase of the outputted two waveforms show a difference of 180 °, and thus the waveforms of the two sinusoidal waves are inverted from each other. These two waveforms are used as inputs to the FET switch circuit (D) to control the flow of current. The FET circuit consists of two parts. When the current is conducted to one FET circuit, the other FET circuit cuts off the current. In addition, when the oscillation IC C is OFF, all the FET circuits cut off the current to control the operation of the transformer E. That is, when the oscillation IC (C) is in operation, the waveform output from the transformer (E) is changed into a direct current voltage by the rectifier circuit (F).

The voltage generated by the transformer E is used as an operating voltage formed at both ends of the xenon discharge tube I and an operating voltage of the trigger circuit H that induces the discharge of the xenon discharge tube I. The oscillation IC C operates. In this case, the transformer E also operates, and when the oscillation IC C is turned off, the transformer E stops operating, so that an inverter control pulse outputted from the microprocessor A outputs an operating voltage necessary for the operation of a warning lamp. 1) to turn on / off momentarily.

In addition, since the output voltage of the transformer E can be selected, the brightness of the warning lamp is controlled by controlling the load voltage applied to both ends of the xenon discharge tube I by the relay switching circuit J. FIG.

The left beacon light control pulse 2 is configured to induce the discharge of the xenon discharge tube I by controlling the operation of the trigger circuit H using the inverted signal passing through the second photocoupler G.

Referring to the operation of each component over time based on the above components as follows.

The inverter control pulse 1 is output from the microprocessor A to the left inverter circuit side. At the same time, the left beacon light control pulse 2 is output to the trigger circuit H of the left beacon with a delay. At this time, the oscillation IC C is operated in the first low state of the inverter control pulse 1, and at the same time, the transformer E is operated to form a high-voltage DC voltage at both ends of the xenon discharge tube I. Charge is performed by applying a direct current with a high voltage to the capacitor C1 coupled in parallel with the xenon discharge tube I.

In addition, the capacitor C2 of the trigger circuit H of FIG. 2 starts to be charged by the operation of the transformer E, and the high-voltage trigger pulse is generated when the left beacon light control pulse 2 of FIG. Output and the xenon tube is discharged.

When the inverter control pulse 1 is changed from low to high again, the operation of the oscillation IC C is stopped, so that the transformer E also stops operating. At this time, the operating voltages to the xenon discharge tube I and the trigger circuit H are cut off. However, due to the charges charged in the capacitor C3, a time delay is induced in the voltage drop.

The left beacon light control pulse 2 changes from low to high again, so that the second photocoupler G is turned off (operation stopped).

In the same manner as above, the second trigger signal of the first cycle is also operated in the same order as described above in the inverter control pulse 1 and the left beacon light control pulse 2 so that the left beacon flashes three times continuously. At this time, the flashing light circuit on the right is in an operation stop state.

The inverter control pulse (1) and the right beacon control pulse (3) are input to the right beacon circuit to operate as the left beacon, and in this case, the left beacon circuit continues to repeat the above process in the stopped state. By flashing the flashing lights left and right to emit three consecutive times at a time.

Based on the above function, it is possible to adjust the illuminance of the warning light by controlling the anode (anode) voltage of the xenon discharge tube (I) by the relay switch, and also control the blinking speed by changing the period of the pulse output from the microprocessor (A). And the number of continuous flashes can be adjusted.

By controlling the voltages formed at both ends of the xenon discharge tube I to be applied only at the time of discharging, the service life is extended than the high pressure is continuously applied to the xenon discharge tube I, and fast charging and discharging for discharging are possible. The number of continuous flashes can be extended more than 3 times without overwhelming the circuit of warning lights. In addition, it is possible to expect a more excellent warning effect by adjusting the flashing speed, and to minimize the visual fatigue of pedestrians or other drivers due to flashing lights at night by adjusting the illumination of the warning lights.

In addition, by using the above-described method, a warning light was mounted on the left and right warning lights mounted on the front of the police cyclist and a warning lamp mounted on the front of the car green, also known as 'tiger eyes', in a strobe manner to enhance the warning effect. In addition, since the miniaturization is possible, a strobe warning lamp that can emit light three or more times alternately inside and inside the small warning lamp can be easily mounted on a patrol motorcycle that requires a small warning lamp, thereby increasing the warning effect.

Claims (2)

Microprocessor (A) for outputting pulse signals (1, 2, 3) for control of each circuit and switch, oscillation IC (C) with inverter function, FET switch circuit (D) and output voltage of various stages Anode voltage that is applied to the xenon discharge tube (I) by the transformer (E), the photocoupler (B, G), the trigger circuit (H) for inducing discharge, the xenon discharge tube (I), and the relay switch (J) Flashing light control circuit characterized in that for controlling the flashing and illuminance of the warning light. Using the principle that the oscillation IC C is turned on when the inverter control pulse 1 is HIGH among the pulse signals 1, 2, and 3 of the microprocessor A, and is turned off, the oscillation IC C is momentarily turned on. The transformer E is also turned on / off due to the instantaneous on / off of the oscillation IC C, and applied to the xenon discharge tube I and the trigger circuit H that induces discharge by the transformer E. A flashing light control circuit, characterized in that the voltage is instantaneously cut off or applied, so that a high voltage is applied only for a short time after the discharge of the xenon discharge tube (I), and thus flashing three times or more continuously.