JP2001267615A - Underwater solar panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an underwater solar panel for also effectively utilizing light that is slantingly applied. SOLUTION: An underwater solar panel 1 is used as the power source of an underwater driving body that is used in water. In this case, a light reflection prevention layer 24 for preventing the reflection of light should be formed on the surface of the solar panel 1, and the solar panel 1 and the light reflection prevention layer should be subjected to waterproofing protection by a protection layer 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar panel disposed in a driving body used underwater, which generates electric power by irradiating light and uses the obtained electric power as a power source of the driving body.

[0002]

2. Description of the Related Art In general, it is difficult to use a battery as a power source for an underwater toy that swims in water or operates in water. Batteries are easy to replace because they do not require cables, etc.Although they can be easily replaced, batteries must be sealed in water because they are used in water. Then, the battery replacement will be troublesome.

[0003] Therefore, there is a concept that electricity is generated by a solar panel instead of a battery, and this is used as a power source of an underwater toy. Since the solar panel itself generates electricity, once it is set, there is no need to replace it, which is convenient.

[0004]

However, naturally,
Since solar panels are used in water, they must be sealed against water, so as shown in FIG.
The solar panel 1 needs to be coated with the synthetic resin 25 or the like. However, when the solar panel 1 is irradiated with light obliquely, if the incident angle exceeds a critical angle, the light is totally reflected. That is, the panel surface becomes like a mirror and reflects light. For this reason, the energy conversion region for light irradiation is limited, and the power generation efficiency is reduced.

[0005] It is an object of the present invention to solve the above-mentioned problems and to provide an underwater solar panel which can effectively use light irradiated obliquely.

[0006]

Means for Solving the Problems In order to solve the above problems, an underwater solar panel according to the present invention has the following requirements to be used as a power source of an underwater driving body used underwater. Features. (B) An anti-reflection layer for preventing light reflection is formed on the surface of the solar panel. (B) The solar panel and the anti-reflection layer are waterproof and protected by a protective layer.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an underwater toy (underwater driving body) that swims in the water under the shape of a fish.
Indicates a solar panel. The solar panel 1 is hermetically sealed by a transparent plastic protective body 2 and is horizontally attached to the toy body 3 with the light receiving surface facing upward, and is mounted on both sides of the toy body 3 with the light receiving surface facing obliquely downward. These are arranged to receive light from above and light reflected from below by a mirror (not shown) placed at the bottom of the aquarium, respectively.

A motor 4 and a reduction gear 5 are arranged at the center of the toy body 3 and have a horizontal output shaft 6a (and a vertical output shaft 6).
A donut-shaped first magnet 7a having an N-pole and an S-pole on the same surface is fixed to the tip of b), and is hermetically housed in one continuous waterproofed container 8.

On the other hand, a doughnut-shaped second magnet 7b is disposed opposite to the first magnet 7a with a partition wall 9 as one side wall of the container 8 interposed therebetween, and is fixed thereto. Propulsion propeller 10 is supported for free rotation.

With the above configuration, if any surface of the solar panel 1 receives sunlight or illumination light, electric power is generated, the motor 4 rotates, and at the same time, the horizontal output shaft 6a, the vertical output shaft 6b, and the first The magnet 7a rotates. First magnet 7
When a rotates, the magnetic field changes, so that the second magnet 7b rotates in synchronization with this. In this way, the rotational force of the first magnet 7a in the container 8 is transmitted to the magnet outside the container 8, and the propelling propeller 10, which is a driving means, rotates, and the rotation causes the underwater toy to move forward.

As shown in FIG. 2, the second magnet 7b
On the left and right sides, two small magnets 11 are formed into a U-shaped member 15 extended so that one of the N and S poles faces inward and the second magnet 7b is sandwiched by the front end of the horizontal rod 14. It is fixed. The horizontal rod 14 is freely supported so as to reciprocate horizontally around a spindle 12 located at the rear of the propeller 10, and a tail fin 13 is vertically fixed to the rear end. As a result, the small magnets 11 on the left and right sides alternately receive an attractive force and a repulsive force due to a change in the magnetic field due to the rotation of the magnet 7b, and the tail fin 13 swings right and left via the horizontal rod 14. As a result, the underwater toy moves forward while swinging right and left little by little.

[0012] Further, the swing mode as described above is shown in FIG.
Unbalanced propulsion propeller 3 as shown in (b)
a, 3b, and the like.

The vertical output shaft 6b and the small pulley 16 are similarly connected via a first magnet 7a and a second magnet 7b. The rotation of the small pulley 16 is transmitted to the large pulley 18 via the rubber belt 17 at a reduced speed. A weight 20 is attached to the lower surface of the large pulley 18 via a cantilevered arm 19 from the center. As the weight 20 rotates slowly with the large pulley 18, the entire center of gravity moves sequentially, so that the fish-type underwater toy tilts its body sequentially back and forth and left and right, resulting in a large twisting orbit. . Thereby, a more complex and biological behavior is expressed in combination with the above-mentioned small left-right vibration.

A space is provided between the solar panel 1 on the upper surface and the toy body 3, and a float 21 made of styrene foam or the like is stored in the space. The float 21 is adjusted in volume so that the fish-type underwater toy sinks slowly, and is located just above the center of gravity so as to take a horizontal posture. Reference numeral 22 denotes a bottoming wire. The floating feeling is emphasized by the main body 3 swinging in water with its tip as a fulcrum.

The underwater toy needs to have a specific gravity of about 1. For the adjustment, the water temperature is adjusted, an air lift is used, an adjustment weight is used, and the like.
Alternatively, an appropriate additive may be added to water or mixed with another liquid.

Although the head of the fish is merely a model, the joint with the toy main body 3 is supported by freely rotating around the vertical shaft 23, and the opening and closing mechanism of the mouth is supported by horizontal free rotation. These also operate following the tiny vibrations of the toy body 3, and a biological action such as shaking the head and opening and closing the mouth when moving forward and backward is expressed. Each of the chest fin and the back fin is made of a thin film of rubber, and swings in accordance with the vibration of the main body 3 and the change of the water flow.

As described above, the fish-type underwater toy uses the electric power generated by the solar panel 1 as a power source to swim underwater. The electric power of the solar panel 1 is obtained by irradiating a light source for illumination or light from the sun. As shown in FIG. 4, the electric power of the solar panel 1 is waterproof and protected by a protective layer 25 covered with a transparent protective material. A waterproof process is performed by forming a transparent anti-reflection layer 24 on the incident surface of.

As described above, the solar panel 1 and the protective layer 2
5 is provided with an anti-reflection layer 24 between them.
As shown in (b), the incident light is further refracted by the anti-reflection layer 24, and more light can be converted into electricity.

Normally, as shown in FIG. 6, a transparent antireflection layer 24 is provided on the inner bottom of a transparent plastic protective container 25 '.
, The solar panel 1 is closely adhered thereon, and the lid 26 of the protective container 25 ′ is further placed on the solar panel 1 and vacuum-pressed. However, the waterproof sealing of the solar panel 1 may be performed by another method.

The solar panel 1 has a light reflection preventing layer 24.
It is arranged so that light is incident from the side. The light reflection preventing layer 24 is made of a material that prevents light reflection, and may be made of highly transparent silicon, transparent resin, or epoxy resin.

By forming the anti-reflection layer 24 on the incident surface of the solar panel 1, reflection of light is prevented even when light from a lighting fixture or the sun is irradiated obliquely, and incident light is prevented. Can be efficiently converted to electricity. Therefore, it is possible to obtain a sufficient power source for operating the underwater toy.

The underwater driving body is not necessarily limited to the above-mentioned fish type. For example, it may be an underwater animal such as a jellyfish, a shrimp, a crab, or a submarine.

[0023]

According to the first aspect of the present invention, the anti-reflection layer is formed on the incident surface of the solar panel so that even when the light from the lighting equipment or the sun is obliquely irradiated. Light reflection is prevented, and incident light can be efficiently converted to electricity. Therefore, a sufficient power source for operating the underwater driving body can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fish-type underwater toy according to the present invention.

FIG. 2 is an explanatory view of an operation mode of a tail fin.

FIGS. 3A and 3B are explanatory views of another example for realizing the swing mode.

FIG. 4 is a cross-sectional view of a solar panel used in the underwater toy.

FIGS. 5A and 5B are explanatory diagrams of light irradiation modes depending on the presence or absence of a resin film.

FIG. 6 is an explanatory view of a manufacturing mode of the solar panel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Solar panel 24 Anti-reflection layer 25 Protective layer

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2C150 BA07 CA02 CA10 DA19 EB01 EG04 EG07 FA05 5F051 BA05 EA18 HA01

Claims (1)

[Claims] 1. An underwater solar panel provided as a power source of an underwater driving body used in water and having the following requirements. (B) An anti-reflection layer for preventing light reflection is formed on the surface of the solar panel. (B) The solar panel and the anti-reflection layer are waterproof and protected by a protective layer.