JPH07113212A - Reflecting mirror - Google Patents

Abstract

PURPOSE:To prevent the cloudiness in a reflecting mirror by driving a generator by a windmill, charging an electric double layer capacitor with the generation power and, at the same time, heating a heating conductor with the charging power to warm a mirror face. CONSTITUTION:A windmill 2 is turned by the force of the wind to turn a generator 3, and an electric double layer capacitor 4 mounted to the inside of a support 12 is charged with the generation power. After that, a heating conductor 5 is heated with the power of the capacitor 4 and, at the same time, a mirror face 11 is warmed up to prevent the condensation thereof. Then, the capacitor 4 eliminates a collecting voltage controlling circuit, and the capacitor 4 is directly connected to an output terminal of the generator 3 and is charged. The collecting voltage of the capacitor 4 is raised with charging current capacity, so that output voltage of the generator 3 is unstable in proportion to the speed of the windmill, and charging is efficiently made from 0 volt to rated voltage. In addition, the capacitor 4 eliminates maintenance such as make-up water, etc., and it has a long life. According to the constitution, the condensation of the mirror face can be prevented, and a reflection mirror can be easily installed and maintained as well as cost reduction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reflecting mirror having a function of preventing fog on a mirror surface, and is particularly preferably used as a road reflecting mirror installed on a road or the like.

[0002]

2. Description of the Related Art Generally, a reflector is installed at a corner of a road or where visibility is poor so as to ensure the safety of running vehicles and pedestrians. However, in the conventional reflecting mirror, especially at night or during cold weather, dew condensation easily occurs on the mirror surface due to the temperature difference between the outside air temperature and the mirror surface, which sometimes causes the mirror surface to fog and deteriorate its function as a reflecting mirror.

Condensation as a cause of the above-mentioned fogging of the mirror surface occurs when the temperature of the mirror surface becomes lower than the dew point of the surrounding air, so that a heating element is attached to the back side of the mirror surface.
A reflecting mirror is disclosed in which the heating element is heated by a commercial power source or a solar cell to warm the mirror surface, thereby preventing fogging due to dew condensation.

[0004]

However, in the above-mentioned reflector, which uses a commercial power source, it takes time and labor for wiring an aerial cable or the like, underground wiring work, and so on. The one using is the mainstream. However, the solar cell using this solar cell has the following problems. That is, in the case of using a solar cell, the power of the solar cell generated in the daytime is once charged to the charging device in order to function to prevent the fogging of the mirror surface even at night etc. Since secondary batteries such as Ni-Cd batteries were used, it is necessary to perform maintenance such as replenishing water at regular intervals, and since these secondary batteries have a cycle life of several years, replace them every few years. Had to do. In addition, due to the nature of the solar cell, it requires a certain amount of sunshine and cannot be used in areas where good sunshine cannot be expected, such as in the mountains and urban areas.

Therefore, the present invention is intended to solve the above-mentioned problems, to provide a reflecting mirror which can be easily installed anywhere, requires almost no maintenance, and has an anti-fog function.

[0006]

In order to achieve the above object, the present invention has the following constitution. That is, the reflector according to the present invention generates heat from the wind turbine, a generator driven by the rotational force of the wind turbine, an electric double layer capacitor charging the generated power of the generator, and the charging power of the electric double layer capacitor. And a heating element for heating the mirror surface.

The electric double layer capacitor used in the present invention has the following features as compared with the conventional secondary battery. That is, the electric double layer capacitor does not require a control circuit for the charging voltage and can be directly connected to the output terminal of the generator for charging, and the charging voltage of the electric double layer capacitor is the charging current. Since it rises in accordance with the amount, it may be between 0 volt and the rated voltage. Therefore, although the output voltage of the generator is unstable in proportion to the rotation speed of the wind turbine, it can be efficiently charged from 0 volt to the rated voltage. Further, maintenance such as replenishment of water is unnecessary, and since the electric double layer capacitor is not accompanied by internal chemical reaction, it has a long cycle life, saves labor such as replacement and is economical.

[0008]

In the reflecting mirror of the present invention, since the mirror surface is warmed by the heating element, dew condensation does not occur on the mirror surface, so that the mirror surface is prevented from being fogged. Further, according to the present invention, the wind turbine is rotated by wind power or the like, and the heating element is caused to generate heat based on the electric power generated by the generator driven by the rotation of the wind turbine, so that it can be installed anywhere regardless of sunshine. Furthermore, since an electric double layer capacitor is used as a charging device for charging the electric power generated by the generator, the structure is simple and the charging efficiency is good, and maintenance such as replenishing water is easier than conventional secondary batteries. Further, since the electric double layer capacitor does not require any internal chemical reaction, it has a long cycle life, saves time for replacement and is economical.

[0009]

Embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 is a front view showing an embodiment of the reflecting mirror of the present invention, and FIG. 2 is a partially cutaway side view thereof. In the drawing, reference numeral 1 denotes a reflecting mirror body, which is made of synthetic resin, metal or the like, and a mirror surface 11 is formed on the front surface of the reflecting mirror body 1. The mirror surface 11 may be formed by mirror-polishing the front surface of the reflecting mirror body 1, or may be formed by attaching a mirror surface body made of acrylic resin, glass, stainless steel or the like to the front surface of the reflecting mirror body 1. However, it is not particularly limited. The reflecting mirror body 1 is usually attached to a column 12 as shown in the drawing.

A wind turbine 2 which is rotated by natural wind or wind pressure of a passing vehicle is rotatably attached to the upper end of the column 12. The wind turbine 2 is generally made of a synthetic resin such as a polycarbonate resin or an acrylic resin or a metal such as an aluminum alloy. A generator 3 is attached to the rear of the wind turbine 2, and the generator 3 rotates in conjunction with the wind turbine 2. That is, when the wind turbine 2 is rotated by the wind force, the rotating force of the wind turbine 2 causes the generator 3 to rotate.
Also rotates in conjunction with each other, and electric power is generated by the rotation of the generator 3. The electric power generated by the rotation of the generator 3 charges the electric double layer capacitor 4 mounted in the support column 12.

Reference numeral 5 denotes a heating element, which electrically generates heat by the charging power of the electric double layer capacitor 4 to warm the mirror surface 11 and prevent dew condensation. The heating element 5
Generally, a heating wire or a surface heating element is used. In this embodiment, the heating element 5 is mounted inside the reflecting mirror body 1 and on the back side of the mirror surface 11, but it may be mounted on the outer circumference of the mirror surface 11 or on the mirror surface 11 so as to surround the mirror surface 11. . In order to prevent heat loss of the heating element 5, a heat insulating body 6 may be attached to the heating element 5 as shown in FIG.

That is, FIG. 3 is a partially cutaway side view showing another embodiment of the reflecting mirror of the present invention. In FIG. 3, a heat insulator 6 is attached to the rear surface of the heating element 5 so that a portion other than the mirror surface 11 is provided. By preventing the heat radiation as much as possible, the heat of the heating element 5 is reflected on the mirror surface 1
The heat is efficiently radiated to only one side.
The heat insulator 6 is generally formed of a material such as foamed resin or inorganic material. Further, the inside of the reflecting mirror body 1 may be evacuated to prevent heat transfer to other than the mirror surface 11.

For the heat generation of the heating element 5, the heating element 5 may be always heated by the charging power of the electric double layer capacitor 4 with the electric double layer capacitor 4 and the heating element 5 being always energized. , A timer or the like may be set to generate heat at predetermined intervals, but in the present embodiment, the mirror surface 11
A heat generation start sensor 7 is attached to the upper part of the heat generation starter 7, and heat generation of the heat generating element 5 is started and stopped based on a detection signal from the heat generation start sensor 7.

That is, the heat generation start sensor 7 causes the mirror surface 1
1 of the electric double layer capacitor 4 is detected based on the detection signal.
Power supply to the heating element 5 is started, and when dew condensation is not detected, the power supply to the heating element 5 is stopped.
The heat generation start sensor 7 is not particularly limited as long as it is a sensor that detects dew condensation on the mirror surface 11 or a state in which dew condensation is likely to occur. For example, generally, a temperature sensor, a humidity sensor,
Condensation sensor, wind speed sensor, etc. are used. A plurality of these sensors may be used in combination. Further, the mounting position of the heat generation start sensor 7 is not particularly limited, and the control unit 71 is mounted inside the support column 12, but may be mounted on the back surface of the reflecting mirror body 1 or the like.

[0016]

As described above in detail, in the reflecting mirror of the present invention, since the mirror surface is heated by the heating element, dew condensation does not occur on the mirror surface, and thus the mirror surface is prevented from being fogged. Further, the present invention uses electric power generated by utilizing wind energy generated by a natural wind or a passing vehicle without using an external power source, so that it is more sunshine than a solar cell. It can be installed anywhere, regardless of its structure, has a simple structure, is easy to install, and requires no running cost, which is extremely economical.

Further, according to the present invention, since the electric double layer capacitor is used as the charging device for charging the electric power generated by the generator, the structure is simple and the charging efficiency is good as compared with the conventional secondary battery. Further, maintenance such as replenishment of water is unnecessary, and since the electric double layer capacitor does not involve internal chemical reaction, it has a long cycle life, saves labor such as replacement and is economical.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a reflecting mirror of the present invention.

FIG. 2 is a partially cutaway side view of FIG.

FIG. 3 is a partially cutaway side view showing another embodiment of the reflecting mirror of the present invention.

[Explanation of symbols]

 11 Mirror surface 2 Wind turbine 3 Generator 4 Electric double layer capacitor 5 Heating element

Claims (1)

[Claims] 1. A wind turbine, a generator driven by the rotational force of the wind turbine, an electric double layer capacitor for charging electric power generated by the generator, and heat generated by the electric power charged by the electric double layer capacitor to warm the mirror surface. A reflector having a heating element.