JPH02122159A - Sunray-collecting device and sunray terminal projecting device - Google Patents

Abstract

PURPOSE:To utilize sunraies effectively by tracking the sunray by the control of a Y-axis sensor, an X-axis sensor, and an electronic circuit and by collecting the light by means of a curved surface mirror and a lens and transmitting the light through an optical fiber for conveyance. CONSTITUTION:When collectible sunraies strike on a light-collecting part, an initiating point sensor 62 detects it and, after about 15 seconds, by opening an X-axis sensor circuit and a source circuit for an X-axis drive motor the light-collecting part is made to turn toward 0 deg. on the X axis. When the turn has reached 0 deg., the light vertically enters a space at a light-receiving plate 55 through a light-adjusting prism 53; detection of the light by a vertical light sensor 54 causes the light-collecting part to stop. Simultaneously by opening a Y-axis sensor circuit and a Y-axis drive motor source the light- collecting part is made to turn from the stop position of 45 deg. on the Y axis toward 0 deg.. When the turn has reached 0 deg., the light vertically enters the space through a light- adjusting prism 53; detection of the light by a vertical light sensor 54 causes the light- collecting part to stop and the first counter circuit to open. Then the operation is started anew, the sunray is tracked, collected continuously on a light-collecting curved surface, and conveyed through an optical fiber. Consequently, loss of light is reduced and the sunray is utilized effectively.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention tracks sunlight by controlling sensors and electronic circuits, focuses the light using a curved mirror and a condensing lens, and enters the light into an optical fiber. The present invention relates to a solar light concentrating device and a solar terminal terminal light projecting device that transmit and use as diffused light projection.

[Conventional technology]

BACKGROUND ART Conventionally, the use of the sun's energy, which is a gift of nature, has been known as water heaters, power generation, solar systems, etc.

[Problem to be solved by the invention]

The present invention transmits and utilizes solar energy. The light energy of the sun is approximately IKVj4F in the vertical plane on the ground on a clear day? By using this infinite light energy, solar concentrators and solar terminals are designed to make it possible to use sunlight in any place where conventional sunlight cannot reach, such as indoors or basements. The present invention provides a light projecting device.

[Failure to solve the problem]

In the present invention, as a result of extensive research into how the solar energy can be effectively used by reducing loss through the structure of the device or the transmission method,
I-sensor Tracks sunlight by controlling the X-axis sensor and electronic circuit, collects the light with a curved mirror and lens, and transmits the light through an optical fiber to minimize the loss of light 17) in the equipment and transmission method. The purpose of this system is to install a large number of devices on the roof of a multi-story building to effectively utilize sunlight as diffused light by guiding it indoors or into basements.

[For production]

In the present invention, the solar concentrator is used in the Northern Hemisphere (
Y axis - due east is 00, due south is 90°, due west is 180°, Y
If the axis-ground is 00 degrees and the vertical direction to the ground is 90 degrees), the light collecting part is centered around the bearing, and the position of the sunlight is Y'ri.
Y41 is sensed and controlled by l11 sensor and electronic circuit.
Rotate between 10' and 90°. Furthermore, the light condensing part senses and controls the position of sunlight using an X-axis sensor and an electronic circuit, and rotates between X@00 and 180 degrees. This light-concentrating part is 90° from the X-axis and Y-axis from the respective positions during sunset, rainy weather, or temporary weather when direct sunlight is no longer available.
It stops at the fixed position of '1l145°.

As for the light focusing method, since the light amount loss is too large in the light focusing method using a lens configuration, in the present invention, a reflection focusing method using a curved mirror with less light amount loss is adopted, and the lens focuses the light only in the final stage. Light enters the optical fiber. In order to prevent the decline in reflectivity due to aging of the mirror surface over a long period of time, it is sealed like a cathode ray tube and filled with vacuum or inert gas.

The optical fiber for transmission is composed of a cable in which optical fibers with a small diameter are bundled around a main optical fiber with a large cross section, and strong light such as the main vertical light is input into the main optical fiber with a large diameter, and the defocus is compared. By introducing weak light into a bundle of optical fibers with a small diameter, the ratio of the total area of the cladding that does not transmit light to the total cross-sectional area of the entire bundle of optical fibers is reduced, resulting in higher transmission efficiency. .

The light transmitted from the optical fiber is forcefully projected by the terminal light projecting device, and this light projecting portion scatters the transmitted light with a refraction lens, adjusts it with an adjustment lens, and then projects the light. In order to eliminate loss due to reflection on the adjustment lens surface, a reflector plate is installed to reflect the light to ensure high efficiency, and the interior is vacuumed or filled with inert gas to prevent aging and dirt inside.

In the condensing device of the present invention, since the surface other than the condensing lens has a solar cell structure, the generated electricity is stored and used as a power source for the drive device, electronic circuit, and auxiliary electric lighting.

〔Example〕

To explain the solar light concentrating device and the solar terminal terminal floodlighting device of the present invention with reference to the accompanying drawings, FIGS. 1 to 5 show the solar light concentrating device, and FIG. 1 shows the entire device. It is a perspective view. In the figure, (1) is a condensing curved mirror, which is installed in a circular concave shape, and a reflecting curved mirror is provided at the center of the upper surface. (5) shows the solar cells and protective glass, and the condensing curved surface of the circular solar concentrator *The other surfaces except (1) have solar cells embedded and the entire device is covered with protective glass. There is. (6) is an arm that supports the light condensing device. (8) is a protective cover provided on the layer surface of the condensing device, and (7) is a storage box provided at the center of the condensing device, which is used for various sensors and floor devices described later for tracking the position of the sun. It also houses the wiper drive motor, etc. OQ is a wiper that cleans the protective glass surface. 03) is a Y-axis gearbox, o4) is an X-axis drive motor, (15) is a reduction gearbox, α
The barrels are pillars and are activated by various sensors inside the storage box (7).

Figures 2 and 3 are detailed diagrams showing the operation of the solar concentrator, with Figure 2 showing the Y-axis operation and Figure 3 showing the operation of the X1 axis.
The operation of ll is shown.

In FIG. 2, (4) is an ohmic gear, r2 is a bevel gear, 023) is a rotating shaft, (24) is an ohmic gear, and (25) is a bearing. (26) is the thrust bearing, (5) is the reduction gear, (2 seconds is the wind pressure gauge, and the ridge is the reinforcing rib. Also, in Fig. 3, the yoke is the fixed support.

Therefore, the Y-axis operation is based on the Yell in the storage box.
The Y-axis drive motor αJ is driven by the command from the sensor, and the sunlight condensing device operates as shown by the arrow through the transmission gear (15), bevel gear (2), and Omu gear. Based on the command from the X-axis sensor in 7), the X-axis drive motor 04) is driven to shift gear (5).
, the solar light concentrator is rotated through the ohm gear.
It rotates 180゛ due to the operation of .

FIGS. 4 and 5 are detailed views of the sunlight concentrating portion.

In the figure, (41) is an incident refraction lens, and (50) is an optical fiber cable. Referring to the cross-sectional view in Figure 5, this light condensing part is shown in Figure 5.The light received by the condensing curved mirror (1) is reflected as shown by the arrow, and the light is reflected by the reflective curved mirror (2) and enters the light. The light enters the light refractive lens (the optical fiber cable 50 that enters and comes into contact with 4υ), is sent to a terminal projector to be described later, becomes diffused light, and is used as illumination. Also a storage box (
The square contains xyy-axis sensors (57), (58), a gyro (60), a wiper drive motor (59), a reduction gear (61), an initial motion sensor (6-wheel seismometer (63), etc.). ing.

FIG. 6 shows a sectional view of the terminal projector, and FIG. 7 shows a sectional view of the light input portion of the optical fiber cable.

A refractive lens (4) is attached to the end of the optical fiber cable (60).
3], and opposite this refractive lens is an adjustment lens, <
(4f3) is provided. This refractive lens is located at the center of the concave reflector (44), and these are located in the center of the fixed container (44).
) and is supported by four mounting arms, and is used in the same way as a general lighting device.

That is, in the illustration, light passes through an optical fiber cable and passes through a refraction lens (431) and an adjustment lens (46) as shown by arrows.
) and reflected light on the adjustment lens surface is reflected by the adjustment lens (4).
6) The light is reflected by the surface, returns to the reflector (421K), and is emitted as diffused light through the adjustment lens again.

Further, the input part of the optical fiber cable 50) is constructed by arranging a main optical fiber with a large core in the center and bundling small diameter optical fibers around it, and only the light input part has a thin core of the main optical fiber. An optical fiber configured in this way is a small-diameter optical fiber in which the main focused light from the condensed spot enters the main optical fiber, and the light that is out of focus due to aberrations and oblique light is bundled around the main optical fiber. This is to increase the efficiency of optical transmission.

FIG. 8 is a detailed diagram of the X-axis sensor (57), and FIG. 9 is a detailed diagram of the Y-axis sensor (58), including (A), (B), (C),
) The figure shows a cross-sectional view, a side view, and a top view. In the figure, (51) is a storage box, (52) is a protective cover,
(53) is a light adjustment prism, and (541 is a vertical light sensor, which is provided at the center of the opposing light receiving plate (55). (5)
6) indicates a horizontal light sensor, and (57) and (EB) indicate a Y-axis or Y-axis sensor. (59) is a light intensity adjustment sensor (shading sensor), (60) is a sensor mounting plate, and (61) is a partition plate.

X N41+ sensor (57) and Y-axis sensor (5
8) is as described above, and the X-axis sensor (5η) is installed so that the surface and bottom of the condensing curved mirror are horizontal and two light receiving plates (55) are opposed and perpendicular to X@. The light-receiving surfaces of these two light-receiving plates (55) are made milky white so that sunlight becomes scattered light when it is received, and is sensed by light sensors (57) and (5B). In order to accurately enter the vertical light into the gap from the follow-up part, a light adjustment prism (the length of the prism is made long enough to allow light to enter the light within the Y-axis angle of 45°, the apex is cut small and parallel to the base, and from this part Light enters in a thin strip.

The vertical light sensor (54) has a light receiving tube that is milky-white and semi-transparent so that the straight light becomes scattered light and is sensed by the light sensor.The light shielding and sensor mounting plate (60) allows the light receiving plate (55) to accurately receive oblique light. Install it with a space between it and the light receiving plate to block unnecessary oblique light and scattered light.

The X-axis sensor (57) collects the scattered light received by the light-receiving plate (55) with a condensing lens and senses it with a light sensor.

The X-axis shading sensor (59) detects sunlight that changes from moment to moment during the day, such as morning and evening, clear skies and light skies during the day, and the difference in light is large, so the X-axis light-shielding sensor (59) The light receiving plate (55) detects the difference in the intensity of light between the upper and lower parts, and lowers the sensitivity of the light shielding sensor to sense it and input it to the light circuit, making it as constant as possible regardless of the intensity of each light.

The horizontal light sensor (56) uses a light intensity adjustment filter to control the direct light and scattered light within the range from horizontal light that cannot be input to the light receiving plate (55) until the device rotates and can be input. Sense.

In addition, the Y-axis sensor (58) is installed with the bottom parallel to the condensing curved mirror and the light receiving plate (55) parallel to the X axis and perpendicular to the bottom, with a gap between the two light receiving plates (55). The light adjusting prism (53) at the top is shaped like a cone and the apex is cut out to a small size parallel to the base so that the straight light enters in a thin line.
54). The other parts operate in the same way as the X-axis sensor.

Next, the operation of the device of the present invention will be explained as an example.
The sunlight that can be focused is 0° on the X axis and O0 on the Y axis (about 6:0 AM).
From the direction of time 0), stop state (X axis 90°, Y axis 4
5 degrees), the initial light sensor (62) detects daylight and opens the counter circuit of the electronic circuit, referring to Figures 4 and 5. Close the circuit.

After about 15 seconds of the counter working, the X-axis sensor circuit and the X-axis drive motor power supply circuit are opened and the counter circuit is closed. Referring to Fig. 8, the horizontal light sensor (56) of the X narrow light sensor detects the light entering the X@ drive motor, and the power to the X@ drive motor is turned on, and the light condensing part moves in the direction of the X axis O0. Rotate and move at 45° on the X axis, it becomes impossible to enter the horizontal light sensor ((G)), but the light enters the light receiving plate (55) K, and as scattered light, the X light sensor (detects it in the field and continues rotating) Moving.

When the X-axis reaches 00, the light receiving plate (field) becomes perpendicular to the sunlight, so the light reception weakens and the light changes to the light adjustment prism (53).
The light enters the gap in the light receiving plate vertically in a strip shape, is sensed by the vertical light sensor (54), closes the X1lillI sensor circuit, and when the power to the X-axis drive motor is turned off, the light condensing part stops, and at the same time, the VCYC upper axis circuit and Y#1. @Listen to the source of the motor's wakeup, refer to Figure 9. Detect the light entering the horizontal light sensor (56) of the Y-axis sensor,
When the power of the Y-axis drive motor is turned on, the condensed part is at 45° on the Y-axis.
It rotates in the 0° direction of the 5Y axis from its stop position, making it impossible for light to enter the horizontal light sensor (56), but the light receiving plate (55)
The K light enters, is detected as scattered light by the Y light sensor (58), and continues to rotate. When the Y-axis reaches 0°, the light receiving plate ((G) becomes perpendicular to the sunlight, so the light reception becomes weaker, and the light enters the gap in a line perpendicularly through the light adjustment prism (53). is detected by the vertical light sensor (51),
Close the Y-axis sensor circuit and turn off the Y-axis active motor power.
At F, the condensing part stops, and the condensing curved mirror becomes perpendicular to the sunlight, begins concentrating and transmitting light, and at the same time opens the first counter circuit, and the operation returns to the beginning and the counter starts working at about 1
After 5 seconds, the X-axis counter circuit and the power supply circuit of the X-axis drive motor are opened. During these 15 seconds, the sun position moves about 0.0625° in the X and Y axes. This is detected by the X-axis and Y-light sensors, and the condensing part is moved through the circuit and stopped for 15 seconds by the counter. This is repeated in sequence.

As described above, it becomes possible to track sunlight, continuously collect sunlight on a condensing curved surface, and transmit it through an optical fiber.

〔effect〕

The light collecting part of the solar light collecting device in the present invention detects and controls the Y-axis position of sunlight using a Y-axis sensor and an electronic circuit, and rotates around the bearing between 0° and 90° on the Y-axis. , the position of the X-axis of sunlight is sensed and controlled by an X-axis sensor and an electronic circuit, and rotationally moved between 0° and 180° on the X-axis.

The method of concentrating sunlight uses a υ reflection condensing method using a curved mirror with low light loss, and only in the final stage, the lens condenses the light and enters the optical fiber to transmit the light, so there is little light loss. If a large number of solar panels are installed on the roof of a multi-story building, considering the effective use of land, sunlight can be transmitted far and wide to the desired location.

For this reason, the device's light projection device is equipped with a refractive lens, an adjustment lens, a reflector plate, etc. to diffuse the light at 4 degrees, which diffuses and projects the light. It can be transmitted to multi-story artificial ground, plant factories, underground developments, and houses with insufficient sunlight, removing harmful ultraviolet rays and transmitting effective sunlight controlled by filters, etc. It has an unimaginable effect on people's lives, allowing not only people but also plants and animals to live in their natural state.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the entire solar light concentrating device, FIG. 2 is a longitudinal cross-sectional view showing the operation of the device, and FIG. 3 is a cross-sectional view of the same. Figures 4 and 5 are Kr plane views showing details of the light condensing part, Figure 6 is a sectional view showing the terminal light emitting part, and Figure 7 is a sectional view of the light input part of the optical fiber cable. shows. FIG. 8 is a detailed sectional view of the X-axis sensor, in which (a) and (b) are longitudinal sectional views, (c) is a side view, and (b) is a top view. FIG. 9 is a detailed cross-sectional view of the Y-axis sensor, and (a) and (b) are longitudinal cross-sectional views.
Figure (c) shows a side view, and figure (b) shows a top view. (1)...Concentrating curved mirror (2)...Reflecting curved mirror (
6)...Am (7)...Sensor storage box Q31...Y-axis gear box 04)...X-axis drive motor 0υ...Incoming light refraction lens (42)...
Reflector plate (43...Refraction lens (44)...Fixed container (4 pieces...Mounted on arm (46)...Light projection adjustment lens 50)...Optical fiber cable (53
)...Light adjustment prism (54)...Vertical light sensor (55)...Light receiving plate (56)...Horizontal light sensor (57)...X-axis sensor (58)...Y-axis sensor (60)...Gyro (62)...Initial sensor (63)...Seismic meter Figure 5 Figure 6 (No. 7n)

Claims (1)

[Claims] 1. 9 in the Y-axis direction (perpendicular to the earth's surface) facing the sun
At the center of the light condensing plate that freely rotates 180 degrees in the 0° and X-axis directions (horizontal to the ground), there is a box that houses the Y-axis and In addition, a convex mirror for reflection is provided at the center around the surface of the light condensing plate, and a number of condensing parts each having a bottom surface formed of a concave mirror for condensing light are provided, and the center of the condensing part, that is, the convex mirror for reflection is provided at the center of the condensing part. 1. A solar light concentrating device comprising: a condensing lens provided at a focal point; and an optical fiber cable provided in contact with the condensing lens. 2. A refractive lens is provided in the center of a curved reflector at the end of an optical fiber cable provided in contact with a condensing lens, and an adjustment lens is provided opposite to this to form a projector, and these are attached to the mounting arm. A terminal projector that is housed in a fixed container.