JP2000068541A - Easy-to-install thin film solar battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make feasible easy installation of a thin film solar battery on a handrail, etc., of a veranda even in the case of complex housing and also in the case of individual housing. SOLUTION: A rotary drum 2 for winding up a thin film solar battery 1 is covered with a drum case 3. A handle 22 for turning the rotary drum 2 is fixed to th side of the same 2. The drum case 3 is supported by a frame body 4 on which guide rails 6 are fixed for pulling out the this film solar battery 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin film solar cell which can be easily attached to a handrail of a veranda or the like.

[0002]

2. Description of the Related Art In recent years, in order to save energy, a solar cell is sometimes provided on the roof of a building or the like, and a part of the power used is supplied by private power generation. In some private homes, solar cells may be provided on a roof or the like to generate power in-house.

[0003]

However, in a multi-family house such as an apartment, since the roof is shared, each person cannot freely install a solar cell.
Even in the case of joint installation and installation, some people do not need solar cells, so they cannot be easily installed.

[0004] In a private house, a solar cell to be mounted on a roof or the like is large and requires a large amount of work, which requires a large purchase cost and a large construction cost. Since it takes a long time to recover these costs, few people install solar cells at a high cost, and their general use is not very high.

Therefore, the present invention enables each person to easily attach to a handrail of a veranda even in the case of an apartment house,
It is another object of the present invention to provide a thin-film solar cell which is inexpensive and can be easily attached to a private house.

[0006]

In order to achieve the above object, a simple mounting type thin film solar cell according to the present invention has a rotating drum for winding a windable thin film solar cell, and the rotating drum is a drum case. Covered by The rotating drum is supported by a frame, and is rotatable by operating an operation unit.

[0007] With such a configuration, even in the case of an apartment house, each person can easily attach it to the handrail of the veranda, and in the case of an individual house, a thin-film solar panel which can be easily attached at low cost. A battery can be provided.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a simple mounting type thin film solar cell according to the present invention.

First, the thin-film solar cell 1 will be described.
As shown in FIGS. 1 and 2, the thin-film solar cell 1 has a continuous sheet shape that can be wound up. At one end in the width direction of the thin-film solar cell 1 (the lower side in FIGS. 1 and 2), an aluminum fitting 11 is provided.
Is attached. Rings are attached to both ends of the metal fitting 11, and the rings are used for supporting members 42, 4 described later.
2 can be hooked by a hook attached to the lower end thereof.

In this embodiment, an amorphous silicon solar cell is used as the thin-film solar cell 1. Amorphous silicon solar cells require less than one-hundredth of the thickness required for photoelectric exchange compared to crystalline silicon solar cells, and are easy to increase in area during the manufacturing process, thus reducing costs compared to crystalline silicon solar cells. Is possible.

A specific description of an amorphous silicon solar cell is as follows. An ITO (Indium Tin) is provided on a glass substrate.
Oxide) and Sno ₂ , a p-layer, i-layer, and n-layer of a semiconductor thin film are formed, and finally a metal electrode of Ai or Ag is deposited. When light is irradiated from the glass side, electricity is generated due to the photoelectric effect of the semiconductor. That is, when light is applied to the semiconductor, electrons trapped in impurity units are excited, or electrons in the full band are directly excited in the conduction band to generate electrons and hole pairs,
Increases conductivity. When such an effect occurs in a place where an internal electric field exists in the semiconductor, electrons and holes generated by photoexcitation are polarized by drift due to the internal electric field, and electromotive force is generated at both ends of the semiconductor in the direction of the electric field. . When a load is connected between the transparent electrode and the metal electrode via a lead wire (not shown), electric power can be obtained.

Various configurations of an amorphous silicon solar cell are conceivable. For example, an n-layer, an i-layer, a p-layer, and a transparent electrode are formed on a stainless steel substrate, and electricity is applied by irradiating light from the transparent electrode side. In addition to the generation type, p layer, i layer, n layer, p layer, i layer, n layer
Layer, forming a battery by forming a transparent electrode in this order, forming a battery, and applying light from the transparent electrode side to generate electricity. I do not care.

Next, the rotary drum 2 will be described. The rotating drum 2 is for winding the sheet-shaped thin film solar cell 1 and has a cylindrical shape. The other end in the width direction of the thin-film solar cell 1 is attached to the rotating drum 2.
In order to wind the thin-film solar cell 1 around the rotating drum 2 or to hang it down, the thin-film solar cell 1 can be operated by rotating a handle 22 described later clockwise or counterclockwise.

The rotating drum 2 is covered with a waterproof, drum type drum 3 made of aluminum and having a cylindrical shape.
This prevents the wound thin-film solar cell 1 from being exposed to rain or the like. The drum case 3 has a thin-film solar cell 1
Is formed with a groove 31 which can advance and retreat. The side plate of the drum case 3 on which the handle 22 is attached is
It is removable.

A rotary shaft 21 is attached to the rotary drum 2, and this rotary shaft penetrates through a through hole formed in the center of both sides of the drum case 3 and protrudes. One end of the rotating shaft 21 has an L for rotating the rotating drum 2.
A shaped handle 22 is attached. Handle 2
By turning the dial 2 clockwise, the thin-film solar cell 1 can hang down. Conversely, by turning the handle counterclockwise, the thin-film solar cell can be wound.

Next, the frame 4 will be described. Frame 4
Are elongated rod-shaped support members 41, 41 and 42, 4
2 and a plate-shaped mounting member 5. Support member 4,
4 and 41, 41, the upper and lower 4
By being screwed from the side at each location, they support each other in a parallel state. Support member 41,
A through hole is formed at the upper end of 41, and this through hole is
Both ends of the rotating shaft 21 penetrate through through holes formed in the center of both sides of the drum case 3. Thereby, the rotating drum 2 and the drum case 3 are separated from each other by
It is rotatably supported by 41.

Above the support members 42, 42, V-shaped guide rails 6, 6 made of aluminum or stainless steel are mounted via support plates 62, 62.
The guide rail 6 guides the thin-film solar cell when the thin-film solar cell 1 hangs, as described later.

A stainless steel pipe 61 is rotatably mounted above the support members 42, 42.
The thin-film solar cell 1 is connected to the front side of this pipe (FIG. 1 front side,
(Right side in FIG. 2). Therefore, the thin film solar cell 1 can be hung down or wound up while being sandwiched between the guide rails 6, 6 and the pipe 61.

The mounting member 5 includes support members 41, 41 and 4
2 and 42, and the present invention is attached to the handrail by sandwiching the handrail 7 of the veranda from the side. A rubber non-slip is attached to one surface of the attachment member 5, that is, a portion that comes into contact with the handrail 7. In addition, a plurality of types having different sizes can be selected for the attachment member 5 according to the shape of the handrail 7, and a plurality of types having different shapes can also be selected for the anti-slip. .

In order to attach the present invention to the handrail 7 of the veranda, first, the drum case 3 and the supporting members 41 are positioned inside the handrail or the like with the drum case facing upward.
Then, one ends of the mounting members 5 are screwed from outside the side surfaces of the support members 41, 41, respectively. Next, the supporting members 42, 42 are located at positions opposing each other with the handrail 7 therebetween, and the other ends of the mounting members 5 are screwed respectively. Finally, the attachment members 5 are screwed from the inside of the side surfaces of the support members 41, 41 and 42, 42, respectively, and the handrails 7 are clamped to complete the attachment.

Next, a method of using the present invention will be described. On a sunny day, the handle 22 is rotated clockwise to hang the thin-film solar cell 1 to an appropriate length. As a result, the thin-film solar cell 1 is exposed to sunlight,
In-house power generation becomes possible.

When the sun is not shining, such as on a rainy day or a cloudy day, rotate the handle 22 counterclockwise to
Metal fitting 1 attached to one end in the width direction of thin-film solar cell 1
1 winds the thin-film solar cell until it contacts the guide rail 6. As a result, the thin film solar cell 1 is
It is stored inside and will not be rained.

In the above-described embodiment, the rotary drum is manually rotated by the handle. However, a spring is attached to the side of the rotary drum, and the thin film solar cell is wound by the spring force of the spring. You may.
In this way, it is possible to automatically wind up without operating the handle.

Further, a thin film solar cell may be automatically wound by attaching a drive motor to the side surface of the rotating drum and operating a separately provided operation switch. Further, in this case, if an illuminance sensor for detecting the illuminance of the sun is attached in addition to the drive motor and the like, it becomes possible to automatically wind up the thin film solar cell according to the weather.

Further, in the above-described embodiment, the guide rail and the pipe are provided above the support member, but these may not necessarily be provided.

[0026]

As described above, according to the present invention, even in the case of an apartment house, each person can easily attach it to the handrail of the veranda, and in the case of a private house, it can be easily attached at low cost. it can.

[Brief description of the drawings]

FIG. 1 is a front view showing the present invention.

FIG. 2 is a side view showing a use state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Thin-film solar cell 2 Rotary drum 22 Handle (operation means) 3 Drum case 4 Frame

Claims (1)

[Claims] 1. A rollable thin-film solar cell, a rotating drum for winding the thin-film solar cell, a drum case that covers the rotating drum, operating means for rotating the rotating drum, and supporting the rotating drum. A simple mounting type thin-film solar cell comprising a frame.