JPH0962217A - Alarm lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the size and weight of a power source part by providing a power source composed of a single battery, a step-up circuit to transform voltage of the power source into necessary voltage and a flashing circuit to flash light emitting diodes. SOLUTION: A primary battery 2 composed of a dry battery having rated voltage not more than 1.5V is used as a power source, and when a main switch 10 is closed, an electric current flows to a pressure increasing circuit 3, and here, pressure is increased to operating voltage optimal for lighting light emitting diodes(LED) 5. The circuit 3 is a boost type step-up circuit composed of, for example, a coil, a capacitor or the like, and can be operated by voltage of 1V at the lowest. The electric current passing through the circuit 3 passes through a flashing circuit 4, and reaches the LEDs 5 connected in parallel to each other in the necessary number, and simultaneously flashes them or successively flashes them. According to this, since a single dry battery is used, it is smaller and lighter than one using plural pieces, and replacing work is easy.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a warning light used for traffic control, signal transmission, warning, etc. at night or in a dark place.

[0002]

2. Description of the Related Art Conventionally, various warning lights have been used for safety at night or in a dark place. The warning light is a stationary sign light that is placed on the road surface near the site of an accident or construction to regulate traffic, a small sign light that is attached to a guardrail at the road edge for safety, and is guided at the construction site. A member holds a vehicle and guides a vehicle or person,
There are portable lighting fixtures that are subject to regulations.

In these warning lights, a light bulb has been used as a light source for a long time, but in the case of a light bulb, the filament is cut off to turn off the light, or heat is generated during light emission, which adversely affects the surroundings. There was something to do.

Therefore, in recent years, there is no fear of wire breakage or heat generation, long life, high reliability, continuous light emission with low power consumption, and small size are achieved. Has come to be used as a light source.

On the other hand, as a power source, it is dangerous to run a long electric wire on the road surface and it is troublesome to handle, and it may cause a failure such as a disconnection. However, batteries are usually used. The batteries used are dry batteries, which are primary batteries.
The number of devices that can obtain a voltage capable of emitting light was connected in series.

[0006]

However, when a plurality of dry batteries are connected in series, the power source portion of the warning light becomes considerably large and heavy. In particular, in the case of a portable lighting device, since it has to be held in a hand for a long time and swung around for a signal, the work is extremely fatigued.

[0007] Further, since the dry battery is consumed almost overnight, it must be replaced each time. In particular, in the case of marker lights, etc., a large number of them are usually installed in one work place, so replacing a plurality of dry batteries for each of them is an extremely troublesome and time-consuming work, and a spare dry battery is always required. There was a problem that many had to be prepared.

[0008]

SUMMARY OF THE INVENTION Therefore, the present invention provides a warning light which is provided with a light emitting diode as a light source in a light-transmitting body, and which guides, regulates, or warns at night or in a dark place. A means for solving the above problems is provided by including a power source composed of one battery, a booster circuit for transforming the voltage of the power source to a required voltage, and a blinking circuit for blinking the light emitting diode.

By using one secondary battery as the power source,
The power supply is smaller and lighter. Moreover, by using a light-emitting diode as a light source, which saves power, it is possible to reduce the time and effort for battery replacement.

Further, when the secondary battery is charged by the solar cell, it is not necessary to carry out the charging work, and it is possible to incorporate a sunshine judging circuit which makes the light source emit light only at night or in a dark place. , Switch operation can be automatic. Therefore, even in an unattended field, it can be used semi-permanently without being required by manpower.

[0011]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described with reference to FIG.

FIG. 1 is a circuit diagram showing an embodiment of the present invention. A primary battery 2 composed of a dry battery having a rated voltage of 1.5 V or less is used as a power source, and a main switch 10 is turned on so that a booster circuit 3 is provided. A current flows, and here, the light emitting diode (LED) 5 is boosted to an optimum operating voltage for lighting. The booster circuit 3 is, for example, a boost type booster circuit including a coil, a capacitor, and the like, and the boosting oscillation circuit includes a transistor and the like. Incidentally, such a booster circuit 3 can operate at a voltage of at least 1V.

The current passing through the booster circuit 3 passes through the blinking circuit 4 and reaches the required number of LEDs 5 connected in parallel, and blinks all at once or sequentially.

According to this embodiment, since one dry cell is used, it is smaller and lighter than the one using a plurality of dry cells, and its replacement work is easy, which is suitable for a portable lighting device. .

FIG. 2 is a circuit diagram showing a different embodiment. For example, a secondary battery 12 composed of a nickel-cadmium battery having a rated voltage of 1.2 V is used as a power source, and the secondary battery 12 is charged by a solar battery 11. In addition, the backflow prevention diode 21 is installed between them so that the current does not flow from the secondary battery 12 to the solar cell 11. The solar battery 11 has a function of charging the secondary battery 12 and sending a signal to the sunshine determination circuit 16.

A current flows through the step-up circuit 13 and the blinking circuit 14 to the required number of LEDs 15 connected in parallel, and L
The configuration in which the ED 15 blinks is the same as in the case of FIG.

When the light is sufficiently bright so that it does not need to be turned on, the LED 15 does not turn on because the booster circuit 13 is not driven by the judgment of the sunshine judging circuit 16, and the darkness which needs to be turned on depends on time or weather. When it becomes, the booster circuit 13 is driven and the LED 15 is turned on. When it becomes bright again, the booster circuit 13 is no longer driven and the LED
15 goes out.

Therefore, even when installed in an unmanned place, it is turned off when it is bright in the daytime, and when it becomes dark, it is automatically judged and turned on by the sunshine judgment circuit 16, so especially in the case of an installation type warning light. It is convenient because humans do not need to operate the switch and human labor is omitted.

According to this embodiment, since the power source is the secondary battery, the size and weight can be further reduced as compared with the embodiment of FIG. 1, and there is no need for replacement or lighting operation, so that it is of the installation type. Suitable for

FIG. 3 shows an example of a warning light in which the above-mentioned circuit is built in. In each case, any one of the above-mentioned circuits is used inside, and the parts other than the light emitting part of the circuit are made of, for example, a hard composite. It is covered with a resin case. Further, the number of LEDs serving as light sources is arranged according to each application, and the LEDs are covered with a translucent cover made of, for example, a soft synthetic resin. The cover is colored in the same color as the LED emission color, generally red, or as a colorless or light color so that the LED emission color can be transmitted as it is so that it can be easily recognized that it means a warning at night or in a dark place. The light of any color is created so that it can be seen.

FIG. 3A is called a color cone and serves as a traffic sign placed on the road surface near the site of an accident or construction to control traffic. The cover 31 of the light emitting part has a hollow conical shape, and a power source part 32 covered with a case made of hard synthetic resin is provided in contact with the bottom surface of the cover 31.

FIG. 3 (B) shows a marker lamp for safety, which is installed on the guard rail when it is hard to see the guardrail from a distance and it is dark at night or in the shade, for example, on a curve of a mountain road. Is a small circle, and the part of the handle 34 in which the power source is built is inserted into the pole or the ground for installation. In this case, usually, a plurality of marker lights are continuously installed along the guardrail.

FIG. 3C shows a portable guide light, which is guided or regulated at a construction site or the like by a guide member holding and swinging it around a vehicle or a person. The handle 36
It has a cylindrical shape that can be held with one hand, and the tubular translucent cover 35 is made quite long so that it can be easily recognized from a distance.

[0024]

According to the present invention, since the power source is one primary or secondary battery, it is not necessary to connect several batteries, and the power source can be made small and lightweight.

Moreover, since the light source is a light-emitting diode for saving power, the labor for battery replacement is reduced, and when the secondary battery is charged by the solar battery, the battery replacement and charging work is not required. It becomes unnecessary. Therefore, not only the labor of the work can be saved, but also the cost can be reduced.

By using the booster circuit to boost the voltage of the battery to the optimum voltage for light emission, there is no voltage loss, and not only the power utilization efficiency is improved, but also the LED is used.
It can be operated with one battery regardless of the type and number of batteries.

Further, by incorporating a sunshine judging circuit using a solar cell, it is possible to use the switch semi-permanently even in an unmanned place such as a mountain without requiring manpower for the switch operation.

[Brief description of drawings]

FIG. 1 is a circuit configuration diagram showing an embodiment of the present invention.

FIG. 2 is a circuit configuration diagram showing another embodiment of the present invention.

FIG. 3 is a perspective view of a warning light to which the present invention is applied.

[Explanation of symbols]

 2 Primary battery 3,13 Booster circuit 5,15 Light emitting diode 11 Solar cell 12 Secondary battery 16 Sunlight determination circuit

Claims (4)

[Claims] 1. A warning light indicating a guide, regulation, warning, etc. at night or in a dark place by installing a light-emitting diode as a light source in a hollow light-transmitting body, and a power source composed of one battery, A warning lamp comprising a booster circuit for transforming the voltage of the power supply to a required voltage and a blinking circuit for blinking the light emitting diode. 2. The warning light according to claim 1, wherein the battery is a secondary battery. 3. The warning light according to claim 2, further comprising a solar cell for charging the secondary battery. 4. The warning lamp according to claim 2, further comprising a sunshine judging circuit which makes a light source emit light only at night or in a dark place.