JPH10140772A - Solar power and snow melting equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar light power generation and snow melting device for power generation and melting of snow by operating an electric appliance by using power generated by a solar battery panel, and melting snow by supplying electricity to the solar battery panel in winter. SOLUTION: A circuit for taking out electricity from a solar battery panel A and another circuit for supplying current to the solar battery A are changed over by a change-over device B. setting is performed so as to be switched on by a time switch C in winter night, and when night comes, the circuit change- over device B is changed over. When the circuit is changed over by the time switch C in winter night, alternating electricity supplied from a commercial power source L by midnight electric power is converted into a direct current power source F by a converter D, and supplied to the solar battery panel A. The solar battery panel A in which electricity is supplied is heat-generated, and snow accumulated on a roof is melted. Accordingly, power generation can be surely performed, even in winter snow falling working of the roof is not necessary.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photovoltaic power generation and snow melting apparatus that uses electricity generated by solar irradiation for electric equipment and also uses a solar cell panel for melting snow.

[0002]

2. Description of the Related Art Solar cells used for solar cell panels include amorphous silicon, polycrystalline and single crystal methods. In view of cost, durability, and conversion efficiency, polycrystalline forms are promising.

[0003]

However, if snow accumulates on the solar cell panel, power cannot be generated, making it difficult to use it during winter. Furthermore, the conversion efficiency of these solar cells is about 15 to 20%, and there is a disadvantage that most of the cells become heat and the efficiency is reduced. In addition, the snow removal work in winter is physically difficult work, and especially in the mountainous area where snow falls, many elderly people are dangerous, and it is dangerous work. There was a problem.

[0004]

SUMMARY OF THE INVENTION In order to eliminate such disadvantages, the present invention utilizes the principle of releasing heat when electricity of a solar cell panel (solar cell) is passed, and uses a solar cell having both power generation and snow melting. It is intended to provide a photovoltaic power generation and snow melting apparatus.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is an explanatory view showing a configuration of a solar power generation and snow melting apparatus 1 according to the present invention, FIG. 2 is a perspective view showing a house α in which the solar power generation and snow melting apparatus 1 is installed, and FIG. It is explanatory drawing which shows 1 house alpha installed, 1 is a solar power generation and snow melting device,
A is a solar panel, B is a circuit switching device, C is a time switch, D is a conversion device, E is an inverter, F is a DC power supply, G is a battery system, H is an indoor distribution board, I is home electrical equipment, J is a watt hour meter, K is a watt hour meter, and L is a commercial power source.

The solar cell panel A converts solar irradiation (light, heat, etc.) into DC electricity.

The circuit switching device B is a device for switching between a circuit for extracting electricity from the solar cell panel A and a circuit for flowing electricity to the solar cell panel A.

[0008] The time switch C is a device that is set to be turned on on a winter night and switches the circuit switching device B on a winter night.

The converter D converts DC and AC electricity, and comprises an inverter E (DC to AC) and a DC power supply F (AC to DC).

The inverter E converts DC power into AC power (A
C100V).

The DC power supply F converts AC electricity into DC electricity.

The battery system G stores surplus electricity. It also has a built-in controller to prevent overcurrent and overdischarge.

The indoor distribution board H supplies electricity to the home electric equipment I. Further, it is also connected to an inverter E and a DC power supply F.

The home electric equipment I is an electric equipment used in the photovoltaic power generation and snow melting apparatus 1 and includes, for example, a refrigerator,
TV, washing machine, kotatsu, vacuum cleaner, ventilation fan, etc.

[0015] The electricity meter W for power sale measures the amount of surplus electricity purchased by the power company. Further, the watt-hour watt-hour meter K measures the amount of power purchased from a power company.

Here, the flow of electricity will be briefly described with reference to FIGS. FIG. 4 is an explanatory diagram showing the flow of electricity during the day. DC power generated by the solar cell panel A is converted into AC power by the inverter E and supplied to the home electric appliance I. In addition, the surplus electricity is stored in the battery system G as DC electricity, or is sold as a commercial power supply L.

FIG. 5 shows the flow of electricity when power cannot be generated by the solar panel A in cloudy or rainy weather or at night. I.

FIG. 6 is an explanatory diagram showing the flow of electricity during the winter night. The circuit is switched during the winter night by the time switch C, and the AC electricity supplied from the commercial power source L by the late night power is converted into the DC electricity by the converter D. The power is converted to the power F and supplied to the solar cell panel A. The solar cell panel A supplied with electricity generates heat and melts snow accumulated on the roof. Of course, the AC electricity can also be used for home electrical equipment I.

FIG. 7 is an explanatory diagram showing the flow of electricity in an emergency. When the commercial power supply L cannot be used, electricity is taken from the battery system G and the domestic electric equipment I is operated.

Although the solar cell panel A is mounted on the roof in the figure, the solar cell panel A may be mounted on the outer wall.
In the figure, the solar power generation and snow melting apparatus 1 is formed in a general house α. However, any building may be used as long as it is a building that uses electricity in a building.

[0021]

As described above, the solar power generation and snow melting apparatus according to the present invention is energy saving. It is energy that is kind to nature. No need to remove the snow from the roof. Electricity can be reliably generated even during the winter season. Snow melting can be performed by using the solar cell panel already installed as a solar power generation and snow melting device. There are features and effects such as.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a configuration of a solar power generation and snow melting apparatus according to the present invention.

FIG. 2 is a perspective view showing a house using the solar power generation and snow melting apparatus according to the present invention.

FIG. 3 is an explanatory diagram showing a configuration of a solar power generation and snow melting apparatus according to the present invention.

FIG. 4 is an explanatory diagram showing a flow of electricity of the solar power generation and snow melting apparatus according to the present invention.

FIG. 5 is an explanatory diagram showing a flow of electricity of the solar power generation and snow melting apparatus according to the present invention.

FIG. 6 is an explanatory diagram showing a flow of electricity of the solar power generation and snow melting apparatus according to the present invention.

FIG. 7 is an explanatory diagram showing a flow of electricity of the solar power generation and snow melting apparatus according to the present invention.

[Explanation of symbols]

 1 Solar power generation and snow melting device α House A Solar cell panel B Circuit switching device C Time switch D Conversion device E Inverter F DC power supply G Battery system H Indoor distribution board I Household electric equipment J Electricity meter for power sales K Buy Electricity meter L Commercial power supply

Claims (1)

[Claims] 1. A solar power generation and snow melting apparatus characterized by operating an electric device using electricity generated by a solar cell panel and supplying electricity to the solar cell panel to melt snow in winter.