KR102445394B1 - Angle-controlled simulated light source test device for calculating the light collection efficiency of a solar light concentrator - Google Patents

Abstract

The present invention can provide more objective test data for light concentrator products by varying the irradiation angle of the light source when calculating the light collecting efficiency of the solar light concentrator. It relates to an angle-adjustable simulation light source test apparatus for, a turntable unit (110); an azimuth angle adjustment unit 120 on which a sample is mounted and rotatably installed on the turntable unit 110 to the left and right; a darkroom cover unit 130 that is detachably mounted to cover the sample seated on the upper end of the turntable unit 110 and blocks the light irradiated from the light source 140 from leaking to the outside; a light source unit 140 irradiating light to the inside of the darkroom cover unit 132; and an elevation angle adjusting unit 150 for vertically adjusting the position of the light source unit 140 to vertically adjust the angle of light irradiated to the sample.

Description

Angle-controlled simulated light source test device for calculating the light collection efficiency of a solar light concentrator}

The present invention can provide more objective test data for light concentrator products by varying the irradiation angle of the light source when calculating the light collecting efficiency of the solar light concentrator. It relates to an angle-adjustable simulation light source testing device for

Renewable energy is in the spotlight all over the world, and eco-friendly products and methods are being developed and used.

A light collecting device that uses solar energy can provide a comfortable living environment for people located in places not exposed to the outside by concentrating and mining sunlight to allow natural sunlight to flow into buildings or arbitrary spaces where sunlight does not reach. .

The total power generation in Korea is estimated to be about 68 million KW (as of 2007), of which about 20% is used for lighting. It can make a big contribution to reducing power consumption.

Although the distribution of light concentrators is active in foreign countries such as the United States, Germany and Sweden, a small number of companies, universities and institutions are participating in research and distribution of light concentrators in Korea.

There are several reasons for the difficulty in disseminating such light concentrators, but one of the representative reasons is the lack of objective test data for light concentrator products.

In addition, it was difficult to objectively evaluate the performance of the light concentrator due to the large variation in characteristics depending on the type of test facility, the location of sunlight, weather, and temperature.

For example, in Patent 10-0813994 proposed by the present applicant, by measuring the amount of light passing through a solar concentrator that can collect sunlight outdoors and light it in an underground parking lot or basement of a building, light utilization efficiency is measured Disclosed is an apparatus for measuring the light collecting efficiency of a solar light collecting miner capable of doing so.

However, in Patent 10-0813994, it was found that the total luminous flux and light distribution of the light collector differ according to the irradiation angle of sunlight.

Registered Patent Publication No. 10-0813994 (Registration date March 10, 2008) Public Utility Model Publication 20-2012-0005985 (published on August 27, 2012) Registered Patent Publication 10-0913341 (Registration Date August 14, 2009)

The present invention was devised to solve the above problems, and an object of the present invention is to make it possible to measure the irradiation angle of a light source by varying the angle of irradiation of the light source when calculating the light collecting efficiency of the solar light collector, thereby providing a more objective test for the light collector product. An object of the present invention is to provide an angle-adjustable simulation light source test device for calculating the light collecting efficiency of a solar light concentrator capable of providing data.

Another object of the present invention is to secure the clarity of the test method and standard of the simulated light source test device, confirm the adequacy of the reduced model (a scale reflecting the measurement limit of the measurement test equipment), and clearly distinguish the simulated light source test device and the applicable types of miners. , taking into account the content of the light collection efficiency according to the altitude change (position change) of the solar simulation light source test device, and calculating the light collection efficiency that can ensure clarity, such as the binding method of the miner product and the simulated light source, and the measurement location to secure accuracy and reliability It is to provide an angle-adjustable simulated light source test device for

Another object of the present invention is to calculate the light collection efficiency according to the change in the altitude of the sun (simulated light source), so that it is possible to test according to the change in the altitude and azimuth of the simulated light source, and the altitude angle adjustment is 0° to 90°, the test product The aim is to provide an angle-adjustable simulation light source test device for calculating the light collection efficiency that allows the azimuth angle of the light concentrator to be controlled by 0 ㅁ 90°.

The present invention for achieving the above object is a turntable unit; an azimuth control unit on which the sample is mounted and rotatably installed on the turntable unit; a darkroom cover part detachably mounted to cover the sample seated on the top of the turntable part and blocking the light irradiated from the light source from leaking to the outside; a light source unit irradiating light to the inside of the darkroom cover unit; and an elevation angle adjusting unit configured to vertically adjust the position of the light source unit to vertically adjust the angle of light irradiated to the sample.

In addition, according to the present invention, the turntable unit has a first through hole formed in the center of the main body to allow light from the light source to pass through, a sealing jaw through which the lower end of the darkroom cover unit is fitted to the upper end of the main body, and formed at both ends to be fastened with the second fastening unit of the frame unit. It is characterized in that it is composed of a first fastening part.

In addition, according to the present invention, the azimuth control unit includes a second through hole formed in the center of the main body to allow the light of the light source to pass through, a pulley portion protruding to be connected to the circulation belt at the lower end of the second through hole, and at the upper end of the main body. A fixed jaw for mounting the light collecting part of the light collecting device, which is a sample, a first driving motor for applying a left and right rotational force to the main body, and a circulation belt connected to the rotating shaft pulley of the first driving motor and the pulley part of the main body characterized in that it is composed.

In addition, according to the present invention, the darkroom cover part is characterized in that it is composed of an upper end with an open lower portion, and an upper incision formed vertically on one side of the upper end.

In addition, according to the present invention, the height angle adjusting unit is configured in a U-shape with a horizontal bar on which a light source unit is mounted in the center and a side bar connected to both ends of the horizontal bar, and an end of the side bar is connected to a hinge shaft part of the frame part, and the hinge shaft part It is characterized in that it is composed of a second motor for driving the horizontal bar and the side bar up and down on one side of the.

As described above, the present invention provides the effect of providing more objective test data for the light collector product by enabling the measurement of the light source by varying the irradiation angle when calculating the light collection efficiency of the solar light collector.

In addition, the present invention secures the clarity of the test method and standard of the simulated light source test device, confirms the adequacy of the reduced model (a scale reflecting the measurement limit of the measurement test equipment), clearly distinguishes the simulated light source test device and the applicable types of miners, and It considers the content of the light collection efficiency according to the altitude change (position change) of the light simulation light source test device, and provides the basis for securing clarity such as the binding method of the mining device product and the simulated light source body, and the measurement location to secure accuracy and reliability. .

1 is a block diagram of a simulated light source testing apparatus according to the present invention;
2 is an exploded perspective view of a simulated light source testing apparatus according to the present invention;
3 and 4 are diagrams of the installation operation of a light collector, which is a sample of the simulated light source testing apparatus according to the present invention;
5a to 5c are operational state diagrams according to the adjustment of the elevation angle of the light source according to the present invention;
6a to 6c are operational state diagrams according to the adjustment of the sample azimuth according to the present invention;
7 is a configuration diagram for each type of a light collector, which is a sample applied to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

First, it should be noted that in adding reference numerals to the components of each drawing, the same components are provided with the same reference numerals as much as possible even though they are indicated on different drawings. In the description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a block diagram of a simulation light source testing apparatus according to the present invention, and FIG. 2 is an exploded perspective view of the simulation light source testing apparatus according to the present invention.

As shown, the present invention simulated light source testing apparatus 100,

Detachable to cover the turntable unit 110, the azimuth angle adjusting unit 120 on which the sample is mounted and rotatably installed on the turntable unit 110 to the left and right, and the sample seated on the upper end of the turntable unit 110 The darkroom cover part 130 is mounted to prevent light emitted from the light source 140 from leaking to the outside, the light source part 140 for irradiating light to the inside of the darkroom cover part 132, and the light source part It includes an elevation angle adjusting unit 150 that adjusts the position of 140 up and down to adjust the angle of light irradiated to the sample up and down.

In addition, the darkroom cover part 130 and the height angle adjusting part 150 are coupled to the hinge shaft part 162 and installed in the frame part 160 and the first through hole 112 of the turntable part 110 in the lower part. A sample attachment unit 170 to be installed is further included.

In the turntable unit 110, a first through hole 112 through which the light of the light source unit 140 passes is formed in the center of the circular main body 111, and a sealing jaw 113 to which the lower end of the darkroom cover unit 130 is fitted. ) is formed, and the first fastening parts 114 fastened to the second fastening parts 161 of the frame part 160 are formed at both ends.

In addition, an insertion hole 115 through which the rotation shaft of the first driving motor 125 passes is further formed on one side of the main body 111 of the turntable unit 110 .

The turntable unit 110 is configured such that the azimuth angle adjustment unit 120 is rotatably installed, and the darkroom cover unit 130 is mounted or released.

The azimuth angle adjustment unit 120 has a second through hole 122 through which the light of the light source unit 140 passes is formed in the center of the main body 121 , and a circulation belt 127 is formed at the lower end of the second through hole 122 . A pulley part 123 connected to ) is formed to protrude, and a fixing jaw 124 on which a light collecting part of a light collecting device, which is a sample, is mounted, is formed on the upper end of the main body 121 .

In addition, the azimuth angle adjustment unit 120 includes a first driving motor 125 for applying a left and right rotational force to the azimuth angle adjusting unit 120 , a rotation shaft pulley 126 of the first driving motor 125 and the main body ( A circulation belt 127 connected to the pulley part 123 of 121 is further configured.

The driving of the azimuth control unit 120 may be performed by appropriately selecting driving means such as a step motor, a timing belt, a chain, and a gear.

The darkroom cover part 130 includes an upper part 131 of a semicircular shape with an open lower part, and an upper cut-out part 132 vertically formed on one side of the upper part 132 .

The darkroom cover part 130 blocks leakage of light to the outside when light is irradiated to the sample located inside, and the shape of the upper part 131 is not necessarily limited to a semicircular shape.

Both sides of the darkroom cover part 130 are coupled to the hinge shaft part 162 of the frame part 160 , and are mounted or released from the turntable part 110 in conjunction with the frame part 130 .

The light source unit 140 is a simulated light source that replaces sunlight and irradiates light to the inside of the darkroom cover unit 132 , and is configured to be movable up and down on the upper cutout 132 of the darkroom cover unit 132 . .

The light source unit 140 may be configured as an LED light source.

The elevation angle control unit 150 is composed of a horizontal bar 151 to which the rear end of the light source unit 140 is mounted in the center and a side bar 152 connected to both ends of the horizontal bar 151 in a U-shape, and the side A second end portion of the bar 152 is connected to the hinge shaft portion 162 of the frame portion 160 , and one side of the hinge shaft portion 162 drives the horizontal bar 151 and the side bar 152 up and down. A motor 153 is configured.

The elevation angle adjusting unit 150 adjusts the position of the light source unit 140 up and down to adjust the angle of the light irradiated to the sample up and down.

The frame unit 160 provides a reference point so that the altitude angle adjusting unit 150 moves up and down through the hinge shaft unit 162 , and at the same time, the darkroom cover unit 130 and the altitude angle adjusting unit 150 are coupled together. During the test, the second fastening parts 161 formed at both ends are fastened to the first fastening parts 114 of the turntable unit 110 through a fastening member.

The sample attachment unit 170 includes a light transmitting unit 171 through which the irradiated light passes, and a light diffusing unit 172 through which the light passing through the light transmitting unit 171 is output.

The sample attachment part 170 is installed integrally with the test apparatus 100, that is, installed under the first through hole 112 of the turntable part 110, or provided attached to the sample to provide the sample The accessory 170 may not be required separately.

For reference, the sample light collecting device is composed of a light collecting unit for collecting sunlight, and the above-described light transmitting unit and light diffusing unit. Most of the light transmitting unit and the light diffusing unit are similar to each other, and thus are integrally formed in the test apparatus 100 .

The simulation light source test apparatus 100 of the present invention configured as described above is used by hanging and fixing the frame unit 160 to a separate base structure unit 200 as shown in FIG. 1 .

That is, for the sample test, the turntable 110 , the azimuth control unit 120 , and the sample attachment unit 170 are separated from the frame unit 160 as shown in FIG. 3 .

Then, as shown in FIG. 4 , the light collecting part 210 of the sample S is mounted on the fixed jaw 124 of the azimuth angle adjusting part 120 .

Here, the sample S may be one of various types as shown in FIG. 7 , and a multi-faceted light collecting unit is illustrated as an example.

When the sample S is mounted in this way, the turntable part 110 is lifted and the second fastening part 161 of the frame part 160 is coupled.

When such test preparation is completed, light is irradiated from the light source unit 140 for the test.

The irradiated light is irradiated to the sample S inside the darkroom cover unit 130 , and the sample S transmits the light introduced through the light collecting unit 210 to the second through hole 122 of the azimuth control unit 120 . ) and the light transmission unit 171 through the first through hole 112 of the turntable unit 110 and output to the light diffuser unit 172 .

In this case, in order to vary the altitude of the light irradiated from the light source unit 130 , the driving control may be performed by the altitude angle adjusting unit 150 .

That is, in the initial state (0°) as shown in FIG. 5A , the second motor 153 is driven to raise the altitude angle adjusting unit 150 . Accordingly, the horizontal bar 151 is raised, and the light source unit 140 mounted thereon rises along the upper and lower cutouts 132 of the darkroom cover unit 130 .

FIG. 5B shows a state in which the light source unit 140 is raised by 30°, and FIG. 5C shows a state in which the light source unit 140 is raised by 80°.

In addition, in order to change the azimuth of the light irradiated from the light source unit 130 , the azimuth angle adjusting unit 120 may be controlled to be driven.

That is, in the initial state (0°) as shown in FIG. 6A , the first driving motor 125 of the azimuth control unit 120 is driven to rotate the azimuth control unit 120 left and right.

Accordingly, the azimuth control unit 120 rotates left or right, and the sample S mounted thereon rotates left and right around the light irradiated through the light source unit 140 .

FIG. 6B shows a state in which the azimuth angle adjusting unit 120 and the sample S are moved to the right by 30°, and FIG. 6C shows a state in which the azimuth adjusting unit 120 and the sample S are moved to the right by 80°.

Hereinafter, an embodiment of the test method of the present invention simulated light source testing apparatus 100 configured as described above will be described.

First, the light collection efficiency performance test of the solar light collector measures the light use efficiency and is defined as the ratio of the amount of light emitted to the light diffuser to the amount of light uniformly incident on the light collecting surface.

The light amount of the simulated light source incident on the condensing surface is first measured, then the light amount emitted from the light diffuser is measured, and the light collection efficiency is calculated as the ratio of the output light amount to the input light amount. The measurement formula is as follows.

Condensing efficiency = (Total luminous flux emitted from the diffuser (lm) Ⅷ100) / Total radiated luminous flux of the simulated light source incident on the condensing miner

In the past, halogen or xenon light sources were used as light sources for simulation light sources, but in this test, LED light sources, which are spotlighted as new light sources, and a diffusion type acrylic cover were used for measurement with a light distribution tester (Australia/PSI). The optical characteristics according to this are shown in <Table 1>.

<Table 1>: Light characteristics of LED light source (light source unit 140)

Two types of solar concentrators of companies A and B with different structures were used as test pieces for this test, and the simulated light source was tested by attaching an LED light source to a jig designated at an arbitrary angle of 30° and 60°.

The characteristics of each angle of the simulated light source are shown in <Table 2>, and the photo and light distribution of the test item are shown in <Figure 2>.

<Table 2> Light characteristics of simulated light source by angle

<Figure 2> Photo of simulated light source and light distribution (angle 30° (left), 60° (right))

<Table 3> shows the results of testing with A company's light collector installed on the simulated light source, and <Figure 3> shows the photo and light distribution of the test item.

<Table 3> Optical characteristics of concentrator by angle of company A

<Figure 3> Photo of company A's light collector and light distribution (angle 30° (left), 60° (right))

<Table 4> shows the test results by installing the light collector of Company B on the simulated light source, and <Figure 4> shows the photo and light distribution of the test item.

<Table 4> Optical characteristics of light concentrator by angle of company B

<Figure 4> Photo of company B's light collector and light distribution (angle 30° (left), 60° (right))

The test results in this study are summarized in <Table 5>.

<Table 5> Test results

Note) It is assumed that the total luminous flux of the simulated light source is 100% condensing efficiency.

In this test, how the light collection efficiency characteristics change according to the angle change of the arbitrarily designed simulated light source to secure the objective measurement data of the light concentrator is analyzed as shown in <Table 5>. It can be confirmed that there is a difference, but as shown in the test results in <Table 5>, there was no significant difference in the light collection efficiency, and it was confirmed that the total luminous flux increased when the angle was 30°.

That is, through the test, it was confirmed that there was a problem in measuring the light collection efficiency for each angle of the simulated light source.

As described above, the present invention provides the effect of providing more objective test data for the light collector product by enabling the measurement of the light source by varying the irradiation angle when calculating the light collecting efficiency of the solar light collector.

In addition, the present invention secures the clarity of the test method and standard of the simulated light source test device, confirms the adequacy of the reduced model (a scale reflecting the measurement limit of the measurement test equipment), clearly distinguishes the simulated light source test device and the applicable types of miners, and Considering the content of the light collection efficiency according to the altitude change (position change) of the light simulation light source test device, and to secure accuracy and reliability, it provides the effect of securing clarity such as the binding method of the mining device product and the simulated light source body, the measurement location, etc. will be.

Although limited embodiments of the present invention have been described above, those skilled in the art should note that the present invention is not limited thereto and various embodiments are expected.

100: simulated lighting test device 110: turntable unit
111: body 112: first through hole
113: sealing jaw 114: first fastening part
115: insertion hole 120: azimuth adjustment unit
121: body 122: second through hole
123: pulley part 124: fixed jaw
125: first drive motor 126: rotation shaft pulley
127: circulation belt 130: dark room cover part
131: upper part 132: upper and lower incisions
140: light source unit 150: elevation angle control unit
151: horizontal bar 152: side bar
153: second driving motor 160: frame part
161: second fastening part 162: hinge shaft part

Claims (5)

turntable unit 110;
an azimuth angle adjustment unit 120 on which a sample is mounted and rotatably installed on the turntable unit 110 to the left and right;
a darkroom cover unit 130 that is detachably mounted to cover the sample seated on the upper end of the turntable unit 110 and blocks the light irradiated from the light source 140 from leaking to the outside;
a light source unit 140 irradiating light to the inside of the dark room cover unit 130; and
and an elevation angle adjusting unit 150 that adjusts the position of the light source unit 140 up and down to adjust the angle of light irradiated to the sample up and down,
The turntable unit 110 includes a first through hole 112 formed in the center of the main body 111 through which the light of the light source unit 140 passes, and a sealing jaw ( 113) and the first fastening parts 114 formed at both ends so as to be fastened with the second fastening parts 161 of the frame 160. Angle adjustable type for calculating the light collecting efficiency of the solar concentrator Simulated light source test device.
delete The method according to claim 1,
The azimuth angle adjustment unit 120 includes a second through hole 122 formed in the center of the main body 121 through which the light of the light source unit 140 passes, and a circulation belt 127 at the lower end of the second through hole 122 . ), a pulley part 123 protruding to be connected to the main body 121, a fixed jaw 124 for mounting the light collecting part of the sample light collector on the upper end of the main body 121, and a left and right rotational force to the main body 121 a first drive motor 125 for An angle-adjustable simulation light source test device for calculating the light collecting efficiency of a solar light concentrator.
The method according to claim 1,
The darkroom cover part 130 has an upper part 131 with an open lower part, and an upper cut-out part 132 vertically formed on one side of the upper part 131. Angle-adjustable simulated light source tester for calculation.
The method according to claim 1,
The elevation angle control unit 150 is composed of a horizontal bar 151 on which the light source unit 140 is mounted in the center and side bars 152 connected to both ends of the horizontal bar 151 in a U-shape, and the side bar A second end portion of 152 is connected to the hinge shaft portion 162 of the frame portion 160, and one side of the hinge shaft portion 162 drives the horizontal bar 151 and the side bar 152 up and down. An angle-adjustable simulation light source testing apparatus for calculating the light collection efficiency of a solar light collector, characterized in that it is composed of a motor (153).

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