KR101520420B1 - Light coupler for dividing, distributing and merging sunlight - Google Patents

Abstract

The present invention relates to an optical coupler apparatus for integrating, distributing and branching sunlight used in a solar light dimming system using an optical fiber cable system. The optical coupler according to the present invention includes an optical connector corresponding to an optical fiber cable at one end and a counterpart end, a light medium in which cylindrical optical media, which are integrally formed with the outer skin cladding, The media are formed by splicing the optical medium to be distributed in the same area division and partially splitting the optical mediums distributed on the side thereof, and the outer skin clad is deposited on the outer side thereof.
The optical coupler according to the present invention is superior in efficiency and economical efficiency as well as durability in the solar direct dimming system using the optical fiber cable, so that it can be easily installed in any environment and can freely and conveniently use the sunlight .

Description

[Technical Field] The present invention relates to a light coupler for dividing,

The present invention relates to a solar photocoupler device. More specifically, in a daylight with sunlight, in the shade area of the underground or indoors, in the optical fiber cable type solar light control system used for real-time use as solar light instead of electric light, Or integrally with the optical coupler.

Conventional solar light technology requires a complicated multi-step process in which a photovoltaic module is made using silicon to obtain DC electricity, then converted to AC electricity, and then the light is turned back into a lamp such as an electric lamp The increase in facility cost results in a decrease in economic efficiency and a problem of discharging many industrial wastes.

Recently, in order to solve such a problem, in the daytime when the sun is in the daytime, the sunlight is collected and condensed without converting the sunlight, and the sunlight is transmitted freely to the necessary places such as underground or indoor using a fiber optic cable. It is a global effort to research and develop and commercialize it.

Korean Patent No. 10-1204595 discloses an apparatus for branching, distributing and integrating sunlight. However, such a conventional solar distribution and integration apparatus is not limited to the one-to-two binary method, It is suggested that 1 to 3 or 1 to 4 should go through 2 steps, and 1 to 5 to 8 should go through 3 steps to integrate or distribute light. That is, there is an inconvenience that it is necessary to perform optical integration or optical distribution over three stages, for example, one-to-five optical distribution or optical integration. In addition, There is a problem that light distribution loss or coupling loss occurs in the course of the process, resulting in considerable deterioration in practicality.

Furthermore, since such a conventional solar distribution and integration apparatus is air-reflecting type, it is difficult to connect an optical fiber cable, and in the case of a light collecting apparatus, it is installed mostly on the outside of a room on a roof or a garden. And there is a problem that the waterproofing and the moistureproofing can not be performed by themselves. In addition, there is a difficulty in the installation environment due to the electric operation, and the structurally complex lenses and the light reflection kernels in the housing are contaminated by the minute pollutants in the air, thereby rapidly losing the initial characteristics and functions There is a problem that it can not be used for a long period of time. Further, there is an additional problem that a high price is inevitable because of having a complicated structure.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the problems of the prior art, and it is an object of the present invention to solve the problems of the prior art, and it is an object of the present invention to provide a solar- Distribution, and integration for optical branching, distribution, and integration that can realize the necessary optical branching function depending on the situation conditions as well as the solar light / light distribution that can freely supply the customized solar light quantity by the optical fiber cable to the required customer For that purpose.

Another object of the present invention is to solve the problems of the conventional airborne optical reflection kernels and to provide a waterproof and dampproof structure which can be easily installed in various installation environments and is not contaminated with fine pollutants in the air, It is an object of the present invention to provide a photocoupler for photovoltaic branching, distribution, and integration that is free from moisture, moisture, insects, and is free from installation location, location, and environmental conditions.

It is still another object of the present invention to solve the problem of high installation cost which is a problem of the conventional light reflecting kernel and to reduce the cost of the solar light dimming system using the optical fiber cable which can be installed with a simple structure, And to provide an optical coupler for photovoltaic branching, distribution, and integration that realizes facility and installation convenience.

According to an aspect of the present invention, there is provided an optical coupler for branching, distributing and integrating photovoltaic light for connecting one optical fiber cable at one end and a plurality of optical fiber cables at another end, A plurality of optical connectors for connecting to the fiber optic cable at one end and at one or more of the other ends opposite to the one end of the fiber optic cable, An outer skin clad which is connected to the outer ends of the plurality of optical connectors by splitting the other ends into a plurality of 1: And an optical medium having a shape integrated with each other in a direct bonding manner.

In one embodiment, the optical medium has a cross-section of the optical medium in a shape separated into one or more optical media bonded to one or more optical connectors in one optical medium bonded to one optical connector. The plurality of optical medium cross-sections corresponding to the one optical medium cross-section are subjected to area splitting to form a plurality of cross-sections of the at least one plurality of optical media.

In another embodiment, the optical medium comprises, on the side of the primary optical medium bonded to one of the one optical connector and one or more of the plurality of optical connectors, the branched optical media bonded with the remainder of the one or more optical connectors, So that a plurality of branched optical media are bonded to one main optical medium.

According to another aspect of the present invention, an optical coupler for photovoltaic branching, distribution and integration comprises a plurality of optical connectors for connecting to a fiber optic cable at one end and at one or more of the other ends opposite to the one end, A plurality of optical connectors are joined to the plurality of optical connectors such that one end is connected to one optical connector at the one end and the other end is connected to one of the one or more optical connectors at the other end, An optical medium including a branched optical medium having one end bonded to a side end face of the main optical medium and the other end bonded to one of remaining optical connectors at the other end; And an outer skin cladding which is bonded to the plurality of optical connectors between the connectors and surrounds the optical medium.

According to the optical coupler of the present invention, it is possible to solve various problems of the optical summing and distributing apparatus using the conventional lens and the light reflecting kernel, and it is possible to provide a high- It is possible to freely apply the optical medium with the outer skin clad integrally, so that it is free from the environment and the environment before and after the installation.

Further, according to the photovoltaic optical coupler according to the present invention, it is possible to construct a system of a multi-coupling system by realizing the function of branching as well as the summing and distribution, thereby making it possible to construct the solar light control system more conveniently .

According to the photovoltaic optical coupler according to the present invention, system equipment cost can be greatly reduced and high economical efficiency can be provided.

According to the photovoltaic optical coupler according to the present invention, a plurality of junction loss losses of 1, 2, 3, 4, 5, 6, 7, 8 or more can be achieved by simultaneous direct junctions through only one optical coupler in one stage And provides a new solar optical coupler with little efficiency and high junction efficiency, which overcomes the low efficiency of the light reflecting kernel method that has the conventional two, three, and four steps.

1 is a schematic view showing a cross section of a solar photocoupler according to the present invention.
Figs. 2 to 3 show cross-sections of an exemplary solar photocoupler that divides one to four.
4A to 4B illustrate an optical coupler according to another embodiment of the present invention.
5 shows an example of the use of a solar light control system using a solar photocoupler according to the present invention.

The details of other embodiments are included in the detailed description and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described hereinafter with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

The inventor of the present application started research and development in 2000 with a university laboratory and an industry-academy joint research in order to complete the photovoltaic system, and in 2002, the photovoltaic tracking system for photovoltaic system (Application No. 10-2002-0002413 and 20- 2002-0001306) 2002 Solar photovoltaic and spectroscopic devices (Application No. 20-2002-0015633 and 10-2002-0028383) and 2007 Photovoltaic Concentrator (Application No. 10-2008-0057734) Development and registration of a patent, and so on. The present invention has provided a solar light using technology which is more economical, free from the installation environment of the system, and convenient for the environment .

1 is a schematic view showing a cross section of a solar photocoupler according to the present invention.

1, an optical coupler for dividing, distributing and integrating solar light according to the present invention includes a housing case 10, a plurality of optical connectors 31 and 32, an outer skin clad 29, an optical medium 20, 25).

Optical connectors 31 and 32 are attached to both ends of the housing case 10 and include an outer skin clad 29 and optical media 20 and 25 inside and cover and protect them. The optical connectors 31 and 32 protrude outside the housing case 10 and can be connected to an external optical fiber cable 51.

The optical connector 31 at one end of the housing case 10 protrudes outside the housing case 10 to connect one optical fiber cable 51. The other end of the housing case 10 The plurality of optical connectors 32 in the optical connector 31 divides the sunlight coming in through the optical fiber cable 51 connected to the one end optical connector 31 into a plurality of paths or connects sunlight coming in through various paths to the optical connector 31 And is formed to protrude out of the housing case 10 so as to be connected to the plurality of optical fiber cables 52 for integration into the optical fiber cable 51.

The outer skin clad 29 is bonded to the optical connectors 31 and 32 between the plurality of optical connectors 31 and 32 so that one end and the other end of the housing case 10 are separated To form an integrated shape.

The optical media 20 and 25 are respectively bonded to the plurality of optical connectors 31 and 32 between a plurality of optical connectors 31 and 32 to fill the inside of the outer skin cladding 29, And the one optical medium 20 and the other optical medium 25 are connected to each other to have an integrated shape.

Hereinafter, the internal structure of the photovoltaic optical coupler according to the present invention will be described in more detail with reference to FIG. 2 to FIG.

Figs. 2 to 3 show cross-sections of an exemplary solar photocoupler that divides one to four. 2 to 3 show an example in which one optical connector 31 is provided at one end and four optical connectors 32 are provided at the other end in order to connect one optical fiber cable and four optical fiber cables I will.

FIG. 2A is a sectional view taken along line A-A 'of FIG. 1, and FIG. 2B is a sectional view taken along line B-B' of FIG.

2A is an exploded perspective view showing an embodiment in which the end face 21A of the optical medium 20 and the four opposing end faces 22A of the optical medium 20 are simultaneously joined to each other within the outer skin clad 29. FIG. The outer skin cladding 29 of FIG. 2A is deposited on the outer surface of one optical medium 20 to form an integral optical medium of the outer shape and the outer skin cladding of FIG. (22A surface) of the optical medium and the outer skin cladding of the counterpart, which are integrally formed, are bonded to each other by an area division multi-plane simultaneous direct bonding method.

In FIG. 2A, the four optical medium end faces 22A are formed by cutting four optical mediums at the end face of the four cylindrical optical media 25, one end face of the one cylindrical optical medium 25, .

Referring to FIG. 2B, in FIG. 2A, four optical media 25 having a 1/4 fan-shaped 22A cross section are extended and extended to one cylindrical optical medium 25, respectively. In FIG. 2B, reference numeral 25 denotes an optical medium. The outer skin cladding 29 is deposited outside the four optical media 25 to form an outer skin clad 29 integral with the optical medium 25.

As shown in FIG. 1, the four divided optical media 25 are not only bonded to the 21A end face of one optical medium 20 at the 22A end face, but also connected to some side faces of the four optical media 25 23C, and 24C), and an outer skin clad 29 is deposited on the outer surface.

FIGS. 3A and 3B show the shapes of the respective optical media constituting the optical couplers which are distributed in a ratio of 1: 4.

FIG. 3A is a plan view showing one optical medium 20 at one end of an optical coupler, an outer skin cladding 29 surrounding the optical medium 20, one end of the outer medium cladding 29, An optical connector 31 is coupled to the optical fiber cable 51 and an end face 21 of the optical medium 20 is present at the other end.

3B shows a cross-sectional view of one of the optical media 29, the outer skin cladding 29 and the optical connector 32 of the four optical media 25 at the other end of the optical coupler. Referring to FIG. 3B, the four optical media 25 distributed in one optical medium 20 are arranged in the remaining portions except the end faces 22A and 23B, which are joined to the other optical media 20 and 25, A clad 29 is deposited and an optical connector 32 capable of being connected to the optical fiber cable 52 is coupled to one end of the optical medium 25 and the outer skin clad 29, There is a section (section 22A) which is joined to a section (section 21A) of the optical scaler 20 and a section (section 23B) which is joined to a side section (section 24B) of another optical scaler 250.

FIG. 3C shows a perspective view of the optical medium 25 shown in FIG. 3B. 3C, one end of the optical medium 25 to be distributed has a fan-shaped end (22A end face) corresponding to a quarter of the end face of the other end connected to the optical connector 32, and the end 22A Side faces of the other optical media 25 are present on the neighboring side faces of the optical media 25 (side faces 23B and 23C). And an outer skin clad 29 is deposited on a portion other than the end surface connected to the other optical medium or the optical fiber cable.

4A to 4B illustrate an optical coupler according to another embodiment of the present invention.

4A and 4B, the main optical medium 20 bonded to the two optical connectors 31 and 32 at both ends is bonded to another optical connector 42 existing at the same end as the optical connector 32, The end surface 27 of the branched optical mediums 28 is bonded to the side surface portion 26 of the optical medium 20 and the other branched optical media 28 are attached to the path of one main optical medium 20 And an outer skin clad 29 is deposited on the outer surfaces of the main optical medium 20 and the branched optical medium 28 to form an envelope.

4A and 4B, an optical coupler according to another embodiment of the present invention includes a cylindrical outer skin spherical surface 26 as a main light medium 20 through which sunlight passes to realize branched light for non-uniform purposes, The end surface 27 of the branching light medium 28 for nonuniform branching of the sunlight is directly bonded to the end surface 27 of the branching light medium 28.

5 shows an example of the use of a solar light control system using a solar photocoupler according to the present invention.

Referring to FIG. 5, the optical integrator 50A is used to integrate the condensed sunlight transmitted through the plurality of optical fiber cables from a plurality of solar condensers into one optical fiber cable, The coupler 50B is used to uniformly distribute the sunlight transmitted by one optical fiber cable to a plurality of light sources, and the optical branching optical coupler 50C sequentially distributes the sunlight transmitted through one optical fiber cable And is used when distributing the sunlight unevenly as in the case of FIG.

The optical medium used in the optical coupler according to the present invention may be any one of glass, quartz, sapphire, diamond, cubic, polycarbonate, BK7, silica and plastic. Or may be integrated with the optical medium.

The optical coupler of the present invention is connected from the one end optical connector 31 of the housing case 10 to a plurality of optical connectors 32 or 32 and 42 at the opposite end to the optical medium so that the sunlight can freely pass through each other There is little passage loss. The optical coupler according to the present invention can control the flow of the light quantity of the sunlight according to the position or the divided area of the one optical medium to the other optical media depending on the purpose of use, Branching function can be achieved.

As shown in FIGS. 1 and 4, in consideration of the straightness and the diagonality of the light, one end and the other end are located on the opposite sides of each other with respect to each other about the junction point, As shown in Fig.

At this time, the sunlight passes through from one end to the other end, or from the opposite end to the other end, but the optical connector (32 or 42) 42 do not pass through due to the symmetry angle and the straightness of light, so that the objects to be achieved by the present invention can be implemented well.

As shown in Figs. 2 and 3, the optical connector is bonded to the counterpart optical connector 32 or 42 of the housing case 10 so that the B-side end face (23B side) of the optical medium medium 25 The other C side end face (23C side) of the optical medium 25 is directly bonded to the B side end face (24B side) of another optical medium 25 bonded to the connector 32 or 42, Side surface (24C surface) of the optical medium 25 connected to the end of the optical medium 25, so that the plurality of optical media 25 forms one integrated optical medium, and the top A-side end surface of the one optical medium Side surface 21A side of the optical medium 20 integrated with the outer skin cladding 29 and bonded to the one-end optical connector 31 at an area of 1: 1, The light sources 20 and 25 will form one integrated optical medium as a whole and may be divided into a plurality of distribution units 1, 2, 3, 4, 5, 6, If the bonding area ratio to meet ever implements a one-piece simultaneously direct bonding.

At this time, each of the A-side end faces (22A faces) of the counterparts of the plurality of counterparts is divided into ½, ⅓, ¼, ⅕, and ½ of the area of the A-side end face 21A of the one- / 6 (1/4 in the embodiment of FIGS. 2 and 3), the functions of optical integration, optical distribution, and optical branching can be realized according to the purpose.

In the case of the one-to-five optical coupler, when the solar light collected and condensed by the optical fiber cable connected to the five counterpart optical connectors is injected into each of the five counterpart optical connectors 32 or 42, The integrated light amount output of five times without passing loss is obtained at the connector 310, thereby providing a low loss light integrating function. In this case, when the solar light source is used in the opposite direction, And can be distributed and distributed at 1/5 of the light amount to each of the opposite ends.

As described above, the optical coupler according to the present invention is an optical coupler connected between the external optical fiber cable and the external optical fiber cable at each end, thereby realizing integration, branching and distribution functions of sunlight as needed, It can be formed as a one-piece structure from one end to the other end regardless of the number of outputs (or integrated optical inputs) that can be distributed and branched in a ratio of 1: 2 or more, thereby realizing high cost with low cost and lowest cost. And it is possible to enhance the miniaturization and durability of the device, and the convenience of the system and the convenience of installation can be added.

Since the optical coupler according to the present invention uses sunlight-compatible optical medium, the solar light passes well and the outer skin of the optical medium is composed of a clad and is integrated with the optical medium, thereby being shielded from the outside. Accordingly, it is possible to provide an optical coupler excellent in durability and free from the installation environment without being influenced by the external environment such as impact, humidity, dust, etc., as well as fine contaminants in the air.

The sunlight passing through the optical coupler according to the present invention and arriving at the optical fiber cable can be transmitted to other couplers or dimming mechanisms as necessary and dimmed, And plant cultivation, sterilization, antibacterial and the like can be provided, thus providing a pleasant environment.

4, the solar light transmitted through the optical fiber cable connected to one optical connector 31 is transmitted to the optical medium 20 and is transmitted to the optical medium 20, The sunlight transmitted to the optical medium 20 is connected to the other optical connector 32 in a straight line so that a considerable amount of sunlight is transmitted in this direction and a part of the elliptical side surface 26 of the optical medium 20 The branching optical medium 28 is formed at a slight angle with respect to the main optical medium 20 so that a small amount of light is branched and transmitted.

In the optical coupler of FIG. 4, the optical connector 31 at one end and the main optical medium 20 connected to the optical connector 32 at the opposite end become one optical medium in which there is no joint surface, 28) is shaped like a tree branch in the main light medium (20), so that a branch has a shape extending from one tree or a shape in which a plurality of roots are connected.

Such a branching type optical coupler can correspond to a desired area according to the required light and can be branched so as to be branched at a ratio intended for relatively variable relative light flow. Thus, the position of the light control device in the interior space of the building, And dimming area in a row, it is possible to provide the sunlight to the first and the last dimmer while saving the optical fiber cable by implementing the tandem type multi-coupling system using the branching function optical coupler. Can be obtained.

The optical coupler also includes a main optical medium 20 connected to the optical connector 31 at one end and a main optical medium 20 and a branch optical medium 28 connected to the optical connectors 32 and 42 at the other end, And the angle between the main optical medium 20 and the branch optical medium 28 connected to the optical connectors 32 and 42 at the opposite end of the coupling is located at a small angle so as to be located as close as possible, And the coupling loss is small, so that the optical branching performance can be relatively enhanced.

On the other hand, the material of the housing case 10 can be selected from metals such as iron, stainless steel, copper and aluminum, and materials such as glass, rubber, and plastic.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It is understandable that it exists.

Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

Claims (10)

A photocoupler for branching, distributing and integrating photovoltaic cells for connecting one optical fiber cable at one end and a plurality of optical fiber cables at another end,
A plurality of optical connectors for connecting to the optical fiber cable at the one end and a plurality of the other ends opposite the one end;
An outer skin clad connected to the plurality of optical connectors between the plurality of optical connectors, the outer skin clad having one end and the other end split and connected to each other to form an integrated shape; And
A plurality of optical connectors each having a plurality of optical connectors, a plurality of optical connectors connected to the plurality of optical connectors,
/ RTI >
Wherein the optical medium is divided into a plurality of optical media bonded to a plurality of optical connectors in one optical medium bonded to one optical connector, and a cross-section of the optical media and a cross- : A plurality of optical medium cross-sections are divided into a plurality of optical medium cross-sections corresponding to the one optical medium cross-section, and the optical couplers for photovoltaic branching, distribution and integration.
delete The method of claim 1, wherein
The optical medium includes a plurality of optical connectors and a plurality of optical connectors. The optical medium includes a plurality of optical connectors, a plurality of optical connectors, and a plurality of optical connectors. Wherein the branching optical media are bonded in a shape with which they are attached.
The method of claim 1, wherein
Wherein the optical medium is one of glass, quartz, sapphire, diamond, cubic, polycarbonate, BK7, silica.
The method of claim 1, wherein
Wherein the outer skin clad is attached to an outer skin of the optical medium and is integrally formed.
The method according to claim 1,
And a housing case covering the outer skin clad and the optical medium,
Wherein the optical connectors protrude to the outside of the housing case.
delete delete delete delete

Images