JPH035670A - Sunlight collection device - Google Patents

Abstract

PURPOSE:To rapidly make possible follow-up on the movement of a moving body by providing a bend on a support arm to make it dogleg. CONSTITUTION:A first rotary shaft 6 and a second rotary shaft 7 are controlled with the use of the output of a sunlight direction sensor 2 to deal with an inclination to control the rotation of a support arm 12 on the basis of a directional signal of a moving body so as to always make the support arm 12 slouchy in the direction of the sun. In addition, when at night or in the time of cloudy weather and the like the output of the sunlight directional sensor 2 cannot be obtained, it is always directed in the direction of the sun by controlling the rotary angles of the second rotary shaft 7 and the support arm 12 with the use of a navigation signal of ships and the like and a time signal, and the part of a sunlight collection element 1 is precisely directed in the direction of the sun with the use of the output of the sunlight directional sensor 2 at the time of sunshine. When the first and second rotary shafts 6, 7 are allowed to position a first board 4 so that they may pass the center of gravity of the part of the sunlight collection element 1, follow-up is made better.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a solar light collecting device, and more particularly to a solar light collecting device suitable for use by being mounted on a moving object such as a ship.

Fig. 4 is a diagram for explaining an example of a sunlight collecting device previously proposed by the applicant. In the figure, 30 is a transparent protective capsule, 31 is a Fresnel lens, and 32 is a lens. Holder 33 is a sunlight direction sensor.

34 is an optical fiber whose light-receiving end is arranged at the focal position of the Fresnel lens, or an optical fiber cable (hereinafter referred to as an optical fiber) consisting of multiple optical fibers; 35 is an optical fiber or optical fiber cable holder; 36 is an arm; 37 is a pulse motor; 38 is a horizontal rotation shaft rotated by the pulse motor 37; 39 is the protective capsule 3;
40 is a pulse motor, and 41 is a vertical rotation shaft rotated by the pulse motor 40.

The sunlight collecting device detects the direction of the sun with a sunlight direction sensor 33, and rotates the horizontal rotation axis 3 so that the sunlight direction sensor 33 faces the direction of the sun based on the detection signal.
The pulse motors 37 and 40 of the 8 and vertical rotation shafts 41 are driven, respectively, so that the sunlight focused by each lens 31 is introduced into the light guide 34 whose light receiving end is disposed at the focal position of each lens. It has become so.

The light guides 34 arranged for each lens are bundled together, led out from the sunlight collecting device as a light guide cable, and guided to any desired location, so as to cultivate plants underground, as described above. It is used for fish farming, etc., which also makes it possible to supply food underground.

Also, in a solar light collection device as described above.

The present applicant previously proposed a technique for selectively extracting a component consisting only of visible light, which cuts out infrared rays and ultraviolet rays, from among sunlight components and introducing it into a light conductor cable, in Japanese Patent Publication No. 60-59567 ), and further proposed that visible sunlight, which does not contain infrared rays or ultraviolet rays, is effective in promoting human health.

Based on the above-mentioned recognition, recently, the above-mentioned solar light collecting device has been mounted on a moving body such as a ship, and it is guided inside the moving body 1, for example, a cabin near the bottom of the ship, using an optical fiber to provide lighting inside the ship.
Furthermore, it is being considered that seafarers working onboard ships can be exposed to sunlight to maintain and improve their health.

However, when the solar light collecting device as described above is mounted on a moving object such as a ship, the direction of the moving object with respect to the sun changes as the moving object moves, and it is difficult to control the direction to correspond to the change. ,Secondly, the above-mentioned changes are frequent and quick control is desired to follow them.Thirdly, the surface of the solar collector is not always horizontal when installed, for example on a ship. In other words, there are many problems such as pitching and rolling, which causes a large change from the horizontal position, and the sun is not always at an elevation angle with respect to the base, but may also be at a depression angle. There is still no solar light collection device suitable for mounting on a mobile body such as the following.

the purpose The present invention solves the above-mentioned problems.

The ability to quickly follow the movement of a moving object, the overall size and weight of the part that follows the direction of sunlight,
This was done for the purpose of appropriately controlling the direction and inclination of the moving body, and making it possible to follow the direction of sunlight even if the angle of depression occurs.

Figure 1 is a front view (or side view) for explaining an example of a sunlight collecting device suitable for use in carrying out the present invention, and Figure 2 is a side view.
The figure is a side view (or front view), and Figure 3 is a plan view of the sunlight collecting surface. In the figure, 1 is a lens for focusing sunlight and a light receiving end is arranged at the focusing position of each lens. It is a solar light collection element consisting of a light guide. 2 is a sunlight direction sensor provided in the center, and in Figure 1, a sunlight collecting element 1 is provided surrounding it, but the mounting position of this sensor is limited to the one shown in the figure. A large number of sunlight collecting elements, which are not objects, are attached concentrically to a medium-high mounting plate 3 to constitute a sunlight collecting element section. Reference numeral 4 denotes a first substrate supporting the sunlight collecting element section, 5 a first bearing attached to the first substrate, 6 a first rotating shaft supported by the bearing 5, and 7 the first rotation shaft. 8 is a second bearing that pivotally supports the second rotating shaft 7; 9 is a second bearing 8 that supports the second rotating shaft 7; 10 is a first electric motor that drives and controls the rotation angle between the first substrate 4 and the first rotating shaft 6; 11 is a second
12 is a hollow support arm that supports the second substrate 9; 13 is a mounting portion; 14 is a mounting portion; 13 is a third bearing that pivotally supports the lower part of the support arm 12; 15 is a third electric motor that drives and controls the rotation angle of the support arm; 16 is a base; 17
is a transparent dome body.

In this solar light collection device as well, the electric motors 10 and 11 are controlled by the output of the sunlight direction sensor 2 basically in the same way as the conventional solar power collection device. Second
The rotation of the electric motor 11 causes the second rotating shaft 7 to rotate, and the first rotating shaft 6 to rotate around the second rotating shaft 7. Due to this rotation, the first substrate 4 is rotated about the second rotation shaft 7 as the central axis. When the first electric motor 10 rotates, the casing of the electric motor 10 itself rotates with the first rotating shaft 6 as a fixed axis. As a result, the first substrate 4, which is the support substrate of the sunlight collecting element section, is rotated about two orthogonal axes.6 Therefore, the sunlight direction sensor The first and second rotating shafts are driven by the output, and the sunlight collection element section can always follow the direction of the sun.

Although it can be said that the gimbal mechanism consisting of these first and second rotation axes is sufficient to make the sunlight collection element follow the direction of the sun, in the present invention, as shown in FIG. Another feature is that the support arm 12 is provided with a curved portion, which is shaped like a dogleg. next,
The reason for this will be explained.

As described above, when a ship tilts significantly due to rolling or pitching, the direction of the sun is at an angle of depression with respect to the deck surface. In this case, the sunlight collecting element section must be directed horizontally or even further downward. If the support arm 12 is straight, the lower end 3' of the mounting plate 3 will collide with the support arm 12, and the support arm 12 cannot be oriented horizontally. , if you are leaning forward in the direction of the sun.

It becomes possible to set the direction of the sunlight collecting element part at an angle of depression. In order for the support arm 12 to always bend forward in the direction of the sun, this can basically be achieved by controlling the third electric motor based on the gyro signal of the ship. In other words, the third electric motor 15 may be controlled to rotate the support arm 12 in the opposite direction by the amount of change in the direction of the ship.
Therefore, during normal operation of moving objects such as ships and airplanes,
It moves along a route, and its position (location) is known in advance based on the speed and feeding time of the moving object, and the direction of the sun at that time is also known, so the solar relation to the moving object at that position is known in advance. The direction of the moving body is calculated in advance according to information regarding the position of the moving body and information regarding the purpose and time when it is in that position, and the first to third rotation axes are controlled by taking into account the program signal. Furthermore, the position of the moving object can also be obtained from a position information signal from an artificial satellite or the like. Note that if the support arm is hollow and the light guide is disposed within the hollow tube, the process will be facilitated.

As explained above, the control method according to the present invention controls the first and second rotation axes using the output of the sunlight direction sensor to cope with the inclination of the moving object, and based on the direction signal of the moving object. The rotation of the support arm is controlled so that the support arm is always bent forward in the direction of the sun. In addition, when the output of the sunlight direction sensor cannot be obtained, such as at night or on cloudy days, the rotation angle of the second rotation axis and the support arm should be controlled by the navigation signal of the ship, etc. and the time signal. For example, it is possible to always orient the sunlight in the direction of the sun during sunshine, and it is possible to accurately direct the sunlight collection element toward the sun using the output of the sunlight direction sensor during sunshine.

Note that if the first substrate is positioned so that the first and second rotation axes pass through the center of gravity of the sunlight collecting element section, followability becomes better.

As is clear from the above explanation, according to the present invention, it is possible to quickly and accurately follow the direction of the sun, the weight of the sunlight collecting element can be reduced, and the support arm has a curved part. By providing this and controlling it based on the direction signal of the moving object, there is an effect that the sunlight collecting element section can always be directed toward the sun even when the moving object is highly tilted.

[Brief explanation of drawings]

Fig. 1 is a front view of a solar power collecting device mounted on a ship as an embodiment of the present invention, Fig. 2 is a side view of the same, Fig. 3 is a front view of a sunlight collecting element section, and Fig. 4 1 is a perspective view showing an example of a conventional sunlight collecting device. 1... Sunlight collecting element, 2... Sunlight direction sensor,
4... First substrate, 6... First rotating shaft, 7...
Second rotating shaft, 9... Second substrate, 12... Support arm, 16... Base, 17... Dome body. Figure 1 1

Claims (1)

[Claims] 1. A large number of sunlight collecting elements each consisting of a large number of lenses for concentrating sunlight and a light guide with a light receiving end disposed at the focal position of each lens; a sunlight collecting element section having a direction sensor; a first rotating shaft that rotatably supports the sunlight collecting element section; and a first rotating shaft that is on the same plane as the first rotating shaft; a second rotating shaft fixed perpendicularly to; a vertical shaft supporting a substrate that supports the second rotating shaft; and a base rotatably supporting the vertical shaft. In the sunlight collecting device used while being mounted on a moving body, the first to third rotation axes are connected to the output signal of the sunlight direction sensor, the direction signal of the moving body, and the artificial satellite. 1. A solar power collection device characterized in that it is controlled based on positional information regarding the mobile object from a vehicle, etc., and signals related to month, day, and time. 2. A solar device having a large number of sunlight collecting elements each consisting of a large number of lenses for converging sunlight, a light guide with a light-receiving end disposed at the focal position of each lens, and a sunlight direction sensor. a light collecting element section, a first substrate supporting the sunlight collecting element section, a first rotating shaft rotatably supporting the first substrate near the center thereof, and a first rotating shaft. A second rotating shaft fixed perpendicularly to the axis, a second substrate rotatably supporting the second rotating shaft, and a hollow support column having a curved portion supporting the second substrate. and a base that rotatably supports the support column.