JPH0422386Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a warning light installed at places where it is necessary to call the attention of vehicle drivers, such as sharp curves on roads and railroad crossings.

[Background of the idea and problems]

The inventors created a dome-shaped base with internal structures to protect the internal structures, such as the light-emitting part, secondary batteries, and electric circuits, from moisture, and create a warning light with a long life and reliable light-emitting operation. We proposed a warning light that is covered with a translucent cover and a packing material such as an O-ring is interposed at the joint between the translucent cover and the base.
60-194025).

Although the above-mentioned warning light had a certain effect on preventing moisture from entering, if the secondary battery, which is an internal structure, remains overcharged for a long period of time, the electrolyte of the secondary battery, such as a dilute sulfuric acid solution, may Gas such as hydrogen is generated, and this hydrogen gas fills the translucent cover, which is completely sealed off from the outside air. In this state, there was a possibility that the hydrogen could catch fire due to static electricity or other shocks, making it extremely dangerous to handle.

[Purpose of this invention]

The present invention was devised in view of the above-mentioned drawbacks, and its purpose is to provide a warning light that discharges hydrogen gas generated from a secondary battery to the outside air and prevents moisture from entering the translucent cover. That's true.

[Specific measures to solve the problem]

The specific means taken by the present invention to solve the above-mentioned problems is to use a base that is equipped with a secondary battery that charges the electromotive force of the solar cell and a light emitting part that blinks with the power from the secondary battery to transmit light. In the warning light covered with a transparent cover, the transparent cover is provided with a communication means so that the space surrounded by the transparent cover and the base communicates with the outside air. A lead wire for charging the secondary battery with the electromotive force of the solar cell is passed through the communication means.

(Example) Hereinafter, the warning light of the present invention will be explained in detail based on the drawings.

Figure 1a is an external view of the warning light of the present invention.
Figure b is a sectional view taken along the line -' in Figure 1a;
The figure is an external view showing an example in which the warning light of the present invention is installed using a support pole.

The warning light 1 includes a solar cell 2, a cell case 3, a light emitting diode 4 as a light emitting part, a diamond-cut reflector 5 covering the plurality of light emitting diodes 4 as a set, and internal structures such as the light emitting diode 4 and the reflector 5. It is composed of a base 6 for fixing the and a dome-shaped translucent cover 7 that covers the entire internal structure.

The solar cell 2 is a power source for the light emitting diode 4, and is made of materials such as crystalline silicon, amorphous silicon, GaAs, and polymer semiconductors, and generates electricity when exposed to light of a certain level or higher.

The cell case 3 has a cylindrical shape with an inclined surface 31 of about 30 to 40 degrees, and the inclined surface 31 to which the solar cell 2 is attached from the inside is formed of transparent polycarbonate resin or the like. The solar cell 2 is wired so as to obtain predetermined power characteristics, and is tightly wrapped and adhered to the inside of the inclined surface 31 of the cell case 3 with an adhesive 32 such as silicone resin.

The base 6 is provided with a polygonal column-shaped accommodating portion 61 that supports and accommodates internal structures. The housing section 61 is divided into an upper chamber section 62 and a lower chamber section 63.
An electric circuit board 64 that controls the blinking of the light emitting diode 4 is housed in the housing. In addition, the lower chamber part 63 can be accessed by removing the plate-shaped lid 65 on the lower surface of the base 6.
A secondary battery 8 that can be easily replaced is housed.

Further, a reflector fixing groove 66 into which the reflector 5 is fitted is provided below each side of the accommodating part 61, and the reflector 5 is fitted into the fixing groove 66 along the prismatic side wall surface and attached to the base 6. It will be erected.

That is, reflectors 5 are erected in all directions.

The reflector 5 has a housing shape with a protrusion 51 formed on the periphery of a rectangular shape, and is provided with a prism cut that retroreflects light toward the outside.

The protrusion 51 of the reflector 5 contacts the side wall surface of the housing part 61, and the supporting and fixing plate 41 for the light emitting diode 4 is provided between the reflector 5 and the side wall surface. The plurality of light emitting diodes 4 fit into recesses provided on the back surface of the reflector 5. As a result, a plurality of light emitting diodes 4 are integrated into the reflector 5 at predetermined intervals.

An electric circuit board 64 is housed in the upper chamber part 62 of the housing part 61 of the base 6 , and the reflector 5 with the light emitting diode 4 incorporated therein is fitted into the reflector fixing groove 66 of the base 6 . Set up along the wall. A fixing member 6 is attached to the top of the reflector 5.
7 to completely support and fix it to the side wall surface.

Electrically, a light emitting diode 4, an electric circuit board 6
4. Wiring is provided between terminals (not shown) that the electrodes of the solar cell 2 and the secondary battery 8 come into contact with, and a cover 7 that completely covers these internal structures is installed. The cover 7 is attached to the base 6 with an O-ring 71 which is a packing material.
It is screwed through.

At least the side surface of the cover 7 corresponding to the reflector 5 portion is made of transparent polycarbonate resin or the like and is made of strong material. The cell case 3 is fixed to the upper part of the cover 7 by partially fitting or screwing.

A feature of the present invention is that a thin tube 69 with a hole diameter of several mm and length of several cm is provided in the transparent cover 7 as a means for communicating with the outside air.

Preferably, the thin tube 69 is provided above the light-transmitting cover 7 because hydrogen gas, which is the most dangerous among the gases generated from the secondary battery 8, is light and accumulates in the upper part.

As a result, the gas inside the translucent cover 7 is transferred to the thin tube 69.
is removed to cell case 3 via. (See the arrow in the figure) Further, a downward opening 33 is formed above the cell case 3, and the cell case 3 is discharged to the outside air. Note that if the cell case 3 and the translucent cover 7 are joined together by screwing only, and the inside of the cell case 3 communicates with the outside air, it is not necessary to form the opening 33.

Further, the thin tube 69 is connected to the solar cell 2 of the cell case 3.
It can also serve as an inlet for connecting the output lead wire 21 to the electric circuit 64. This eliminates the need to form unnecessary openings in the upper part of the translucent cover 7.

Note that a desiccant 68 is provided inside the transparent cover 7 to prevent condensation caused by a temperature difference between the inside of the transparent cover 7 and the outside air.

As shown in the external view shown in Figure 2, the warning light with the above configuration is constructed by installing support poles 9 at dangerous locations where it is difficult to obtain commercial power or where it is desired to alert the driver of the vehicle. A warning light mount 91 is installed on the upper part of the pole 9.

The present inventors sprayed water from the top of the warning light 1 of the present invention and investigated the intrusion of moisture.

As a result, although watering was carried out for 2 hours, a few water droplets entered the cell case 3, but no water droplets entered the transparent cover 7 at all.

In this way, when the power generated by the solar cell 2 decreases, the blinking control circuit (not shown) on the electric circuit board that senses this decreases, and the electromotive force of the solar cell 2 is charged with the power of the secondary battery 8. The light emitting diode 4 blinks.

For example, when the housing part 61 has a hexagonal column shape, each of the six side wall surfaces has reflectors 5a to 5a.
5f will be erected. The light-emitting diode 4 blinks in two cases: in one case, the light-emitting diodes in all the reflectors 5a to 5f blink at the same time;
5e light emitting diode 4 and reflector 5b, 5
There are cases where the light emitting diodes 4 of the reflectors 5a to 5f are made to blink alternately, and cases where a fixed delay time is set between the light emitting diodes 4 of each of the reflectors 5a to 5f and the light emitting diodes 4 of the reflectors 5a to 5f are made to blink. These are the electric circuit board 64
Controlled by the electrical circuit above.

Although the above-mentioned embodiment has been explained using a light-transmitting cover, a colored light-transmitting cover having diffusion slits formed in the vertical direction may also be used. Also, the thin tube 69
Although the light-transmitting cover is provided as a separate member through the light-transmitting cover, when the light-transmitting cover is formed by injection molding or the like, it may be formed integrally with the light-transmitting cover.

〔effect〕

As explained in detail above, the warning light of the present invention has a base equipped with a secondary battery that charges the electromotive force of a solar cell and a light emitting part that blinks with the power supplied from the secondary battery, and a transparent cover. By providing a communication means in the translucent cover so that the space surrounded by the translucent cover communicates with the outside air in the covered warning light, it is extremely easy to remove hydrogen gas generated from the secondary battery. Furthermore, since moisture and the like do not enter the light-transmitting cover, there is no failure due to corrosion of the light emitting part, electric circuit board, secondary battery, etc.

That is, the flashing operation of the warning light can be operated for a long period of time, and not only reliability is improved, but maintenance such as repair work is not required.

Furthermore, by passing through the communication means a lead wire that charges the secondary battery with the electromotive force of the solar cell,
Since there is no need to provide a special lead wire inlet for the solar cell, the manufacturing process does not become complicated and moisture infiltration is prevented.

[Brief explanation of the drawing]

Fig. 1a is an external view of the warning light of the present invention, Fig. 1b is a sectional view taken along the line -' in Fig. 1a, and Fig. 2 shows the warning light of the present invention using a support pole. FIG. 3 is an external view showing an installed example. 2...Solar cell, 3...Cell case, 4...Light emitting diode, 5...Reflector, 6...Base, 7...Cover, 71...O ring.

Claims (1)

[Claims for Utility Model Registration] A warning light that has a base that is equipped with a secondary battery that charges the electromotive force of a solar cell and a light-emitting part that blinks with the power supplied from the secondary battery and is covered with a transparent cover. A warning light, characterized in that the translucent cover is provided with a communication means so that the space surrounded by the translucent cover and the base communicates with the outside air.