KR101771676B1 - Solar tracking sensor having double condenser lens - Google Patents

Solar tracking sensor having double condenser lens Download PDF

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Publication number
KR101771676B1
KR101771676B1 KR1020150094987A KR20150094987A KR101771676B1 KR 101771676 B1 KR101771676 B1 KR 101771676B1 KR 1020150094987 A KR1020150094987 A KR 1020150094987A KR 20150094987 A KR20150094987 A KR 20150094987A KR 101771676 B1 KR101771676 B1 KR 101771676B1
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South Korea
Prior art keywords
sunlight
lens
receiving module
tracking sensor
light
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KR1020150094987A
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Korean (ko)
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KR20170004529A (en
Inventor
이진상
홍용표
유남준
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엑센도 주식회사
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Priority to KR1020150094987A priority Critical patent/KR101771676B1/en
Publication of KR20170004529A publication Critical patent/KR20170004529A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
    • H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/20—Optical components
    • H02S40/22—Light-reflecting or light-concentrating means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Photovoltaic Devices (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

The present invention relates to a solar tracking sensor equipped with a dual condenser lens capable of improving condensing efficiency of sunlight received using a dual condenser lens.
More specifically, the outer surface 110; A ball lens 120; A main body 130; And a control unit to detect the position of the sun, the solar spectrum sensor comprising: a dome lens (111) for primarily focusing sunlight incident from the outside; And a cover connector 112 which allows the ball lens 120 to be attached to the main body 130. The ball lens 120 secondarily condenses the sunlight condensed by the dome lens 111, And a light receiving module 131 for receiving the sunlight that is secondarily condensed by the light receiving module 120 and outputting an optical signal. The control unit analyzes the optical signal output from the light receiving module 131 and outputs a set control signal To a sun tracking sensor equipped with a dual condenser lens.
The present invention also relates to a solar tracking sensor having a dual condenser lens for analyzing the amount of light received by a sensor to determine the ambient illuminance and outputting a predetermined control signal accordingly.

Description

SOLAR TRACKING SENSOR HAVING DOUBLE CONDENSER LENS WITH DUAL COLLECTING LENS

The present invention relates to a solar tracking sensor equipped with a dual condenser lens capable of improving condensing efficiency of sunlight received using a dual condenser lens.

More specifically, the outer surface 110; A ball lens 120; A main body 130; And a control unit to detect the position of the sun, the solar spectrum sensor comprising: a dome lens (111) for primarily focusing sunlight incident from the outside; And a cover connector 112 which allows the ball lens 120 to be attached to the main body 130. The ball lens 120 secondarily condenses the sunlight condensed by the dome lens 111, And a light receiving module 131 for receiving the sunlight that is secondarily condensed by the light receiving module 120 and outputting an optical signal. The control unit analyzes the optical signal output from the light receiving module 131 and outputs a set control signal To a sun tracking sensor equipped with a dual condenser lens.

The present invention also relates to a solar tracking sensor having a dual condenser lens for analyzing the amount of light received by a sensor to determine the ambient illuminance and outputting a predetermined control signal accordingly.

Generally, the solar tracking sensor is used for analyzing the incident angle of sunlight through the sunlight received by the sensor to determine the position of the sun and to output the signal so that the solar panel always faces the sun. Such a solar tracking sensor is attached to a solar power generator and outputs a signal for moving the solar panel according to the change of the sun's orbit, thereby enhancing the light-condensing efficiency.

Furthermore, since the sun tracking sensor receives the light and determines the altitude and azimuth of the sun, it can be used as an illuminance sensor for grasping the surrounding illuminance by utilizing the fact that the amount of received light is analyzed in addition to the function of tracking the sun .

The conventional solar tracking sensor has a lens at its upper end and is designed so that sunlight reaches the optical sensor through the condenser lens and the position of the sun can be tracked by the optical signal generated through the sunlight received by the optical sensor .

However, in the conventional solar tracking sensor having such a structure, since the condenser lens is located in the vertical direction to the optical sensor, there is a limit to the sunlight that can be incident on the condenser lens, and when the sun is covered by the cloud, It is difficult to distinguish the case where the sensor is terminated, so that a malfunction of a device linked to the solar tracking sensor may occur.

That is, the conventional solar tracking sensor has a limitation of the incident angle of the sunlight incident on the condensing lens, and the accuracy of the sun tracking sensor deteriorates depending on the surrounding environment.

On the other hand, Japanese Patent Application Laid-Open No. 10-2014-0017048 discloses a high-precision solar tracking sensor having a quadrant method.

This technology is a solar tracking sensor for enhancing solar light condensing efficiency. The solar tracking sensor includes a base 110 as a support for fastening and supporting a light sensing output unit 120 including a quadrant partition structure; A deviation between the azimuths in four directions of the optical sensor values generated by the quadrant array optical sensor 123 that is seated on the base unit 110 and is compared with a set value having an output enable condition in each azimuth, A control PCB 121 mounted with a controller 121a for outputting a final control output through the control PCB 121, and a control PCB 121 mounted vertically on the upper surface of the control PCB 121 to be integrally coupled and electrically connected, The partitioning board 122 is divided into first to fourth partitions 122a to 122d. The first to fourth partitioning parts 122a to 122d are arranged on the side walls of the first to fourth partitions 122a to 122d, A light sensing output part 120 composed of a quadrant array light sensor 123 formed by first to fourth photodiodes 123a to 123d which are mounted and arranged in a divided manner; Is a cover member that is coupled to the base unit 110 to cover the optical sensing output unit 120 and transmits and directs sunlight to the first to fourth photodiodes 123a to 123d side, A light incidence part 130 formed in a hemispherical shape so as to enhance the efficiency of sunlight incidence and optical sensing; The present invention relates to a high-precision solar-ray tracking sensor having a quadrisection.

However, the above-described technique does not describe a configuration that condenses sunlight by the first to fourth photodiodes 123a to 123d, which are the optical sensors 123, and when the solar light is weak, A malfunction may occur.

In addition, since the first through fourth photodiodes 123a through 123d are disposed on the side walls of the first through fourth partitions 122a through 122d, the sunlight incident vertically may be difficult to determine, Shadows can be generated by the first to fourth partitions 122a to 122d, which may cause unnecessary control signal output and control operations.

Therefore, in order to solve the above problems, the optical sensor should be able to receive sunlight coming into various directions regardless of the altitude and the direction of the sun. In addition, it is necessary to detect the weak sunlight to increase the precision of the sun tracking sensor, It is required to develop a technique capable of increasing the light condensing efficiency.

Furthermore, it is required to develop a technology that can be used for various purposes by using sun tracking sensor as a light intensity sensor in addition to the solar tracking function.

Published Japanese Patent Application No. 10-2014-0017048 (Feb.

It is an object of the present invention to provide a sun tracking sensor capable of detecting sunlight incident on a multifaceted surface regardless of the altitude and the azimuth of the sun, And to provide a sun tracking sensor equipped with a dual condenser lens capable of increasing the light condensing efficiency in order to reduce the malfunction.

It is another object of the present invention to provide a solar tracking sensor equipped with a dual condenser lens which can be used for various purposes by using a sun tracking sensor as a light intensity sensor in addition to a solar tracking function.

It is still another object of the present invention to provide a solar tracking sensor having a dual condenser lens for analyzing the amount of sunlight received by a light receiving module to determine the ambient illuminance and outputting a control signal set accordingly.

It is a further object of the present invention to provide a dual condenser lens comprising a dome lens and a ball lens, wherein a dome lens of a dome shape is used to facilitate the incidence of sunlight in many directions and the sunlight is condensed through a hemispherical ball lens It is possible to enhance the detection efficiency according to the incidence of sunlight and to increase the precision of the sun tracking sensor by concentrating the light collecting area with the weak sunlight receiving module through the double collecting lens, And a sun tracking sensor provided with a dual condenser lens for reducing malfunction.

According to an aspect of the present invention, there is provided a solar tracking sensor including a dual condenser lens, A ball lens; main body; And a control unit for detecting a position of the sun, the solar spectrum sensor comprising: a housing (110) having a dome lens for primarily condensing sunlight incident from the outside; And a see-through connector 112 that allows the ball lens to be attached to the main body. The ball lens secondarily condenses the sunlight firstly condensed by the dome lens 111, and the main body condenses the sunlight secondarily condensed by the ball lens And a light receiving module for receiving light and outputting an optical signal for received sunlight. The control unit analyzes the optical signal output from the light receiving module and outputs a control signal.

The sun tracking sensor provided with the dual condenser lens according to the present invention is capable of inputting sunlight in many directions and condensing the sunlight with a weak light receiving module through the double condenser lens to increase the detection efficiency according to incidence of sunlight, Thereby increasing the accuracy of the tracking sensor, thereby having a remarkable effect that the malfunction can be reduced.

In addition, the present invention analyzes the amount of sunlight received by the light receiving module to determine the ambient illuminance, and controls the apparatus by outputting predetermined control signals to the ambient illuminance in conjunction with the apparatus to be operated according to the change in ambient illuminance ≪ / RTI >

1 is an exploded perspective view showing the configuration of a solar tracking sensor having a dual condenser lens according to the present invention.
2 is a perspective view illustrating a light receiving module of a solar tracking sensor equipped with a dual condenser lens according to the present invention.
FIG. 3 is a simplified view of the path of sunlight received by a solar tracking sensor equipped with a dual condenser lens according to the present invention.
FIG. 4 is a view showing a change in the condensed region generated in the solar tracking sensor provided with the dual condenser lens according to the present invention in accordance with the change of the position of the sun.
5 is an exploded perspective view showing a configuration of a conventional solar tracking sensor.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor can properly define the concept of the term to describe its invention in the best possible way And should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents And variations are possible.

Before describing the present invention with reference to the accompanying drawings, it should be noted that the present invention is not described or specifically described with respect to a known configuration that can be easily added by a person skilled in the art, Let the sound be revealed.

The present invention relates to a solar tracking sensor equipped with a dual condenser lens and equipped with a double condenser lens capable of improving condensing efficiency of solar light received by a sensor.

The structure of the solar tracking sensor having the dual condenser lens according to the present invention will be described with reference to FIG. 1 of the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing the configuration of a solar tracking sensor provided with a dual condenser lens according to the present invention; FIG.

According to FIG. 1 of the accompanying drawings, a solar tracking sensor may include a cover 110, a ball lens 120, and a body 130.

The cover 110 may include a dome lens 111 for primarily condensing sunlight incident from the outside and a cover connector 112 for coupling the dome lens 111 to the main body 130.

The dome lens 111 is a dome-shaped lens, and serves to enhance the light-condensing efficiency by primarily focusing sunlight incident from the outside.

The jacket connector 112 serves to couple the dome lens 111 to the main body 130. The jacket connector 112 may be adhered to the surface of the main body 130 by using an adhesive, A screw thread is formed on the inner surface of the main body 112 so as to be screwed to the main body 130.

The ball lens 120 is a hemispherical lens, and serves to increase the light-condensing efficiency by focusing the primary light through the dome lens 111 by the ball lens 120.

In this case, the size of the ball lens 120 should be designed to be large enough to accommodate the light receiving module 131, and the focus of the ball lens 120 should not be deviated from the light receiving module 131.

The main body 130 may include a light receiving module 131 and a main body connector 132.

The light receiving module 131 is located at a position where the sunlight condensed through the dome lens 111 and the ball lens 120 is condensed, receives the condensed sunlight, outputs an optical signal for the received sunlight, (Not shown in the drawing).

The main body coupling hole 132 is formed on the outer circumference of the main body 130 so as to be coupled with the outer shell connector 112 so that the outer shell 110 and the main body 130 can be joined together if necessary.

The structure of the light receiving module of the solar tracking sensor having the dual condenser lens according to the present invention will be described with reference to FIG. 2 of the accompanying drawings.

2 shows a light receiving module of a solar tracking sensor equipped with a dual condenser lens according to the present invention.

2, the light receiving module 131 includes four photodiodes 131a, 131b, 131c and 131d. In the main body 130, a rectangular shape is formed at the center of the surface on which the ball lens 120 is mounted. So as to have a cell region divided into four.

A photodiode is a type of optical sensor that converts light energy into electrical energy. It is characterized by high response speed, wide sensitivity, and good linearity of photocurrent. In addition, since it is utilized for accurately measuring the intensity of light, the photodiode in the light receiving module of the present invention can analyze the collected sunlight.

FIG. 3 is a simplified view of the path of sunlight received by a solar tracking sensor equipped with a dual condenser lens according to the present invention.

3, when external sunlight is horizontally incident on the dome lens 111, incident sunlight is first refracted and condensed by the dome lens 111 and enters the cavity 113, The sunlight incident on the ball lens 120 in the cavity 113 is incident on the light receiving module 131 after being subjected to secondary refraction and condensation. At this time, the air gap is created by coupling the surface connector 112 and the body connection port 132, and the air gap 113 is filled with air.

At this time, it is designed to be condensed by the light receiving module 131 through the dome lens 111, the cavity 113, and the ball lens 120, regardless of the direction in which external sunlight is incident.

The sunlight incident on the solar tracking sensor differs in the light collecting area CA that is converged by the light receiving module 131 according to the altitude and azimuth of the sun. The light collecting area CA varies depending on the angle and direction CA) of the accompanying drawings.

FIG. 4 is a view showing a change in the condensed region generated in the solar tracking sensor provided with the dual condenser lens according to the present invention in accordance with the change of the position of the sun.

The angle and azimuth of the sunlight incident on the solar tracking sensor varies depending on the altitude and azimuth of the sun, as shown in FIGS. 4A, 4B and 4C.

4A, sunlight incident from the west is received by the light receiving module 131 through the dome lens 111, the air gap 133 and the ball lens 120, and is condensed on the light receiving module 131 The condensing area CA is formed in the vicinity of the east corresponding to the position of the sun.

FIG. 4B shows a case where the sun is vertically positioned on the solar tracking sensor, and the incident sunlight is condensed into the light-collecting area CA located in the center of the light-receiving module 131.

FIG. 4C shows a case where the sun is located on the east side, and the incident sunlight is condensed in the light collecting area CA near the west corresponding to the sun position in the light receiving module 131.

At this time, the light-collecting area CA partially includes four photodiodes 131a, 131b, 131c and 131d forming the light-receiving module 131. In the light-collecting area CA, light received by the photodiodes located in the light- Converts sunlight into an optical signal, and transmits it to a control unit (not shown in the figure).

The control unit includes a database capable of determining the position and the surrounding illuminance of the sun according to the received optical signal.

At this time, the control signal is a signal that can control the operation of the device linked to the sun tracking sensor and can be used for various purposes.

For example, when the solar tracking sensor according to the present invention is interlocked with a solar cell, a control signal for operating the solar cell to face the sun can be output to increase the light collecting efficiency of the solar cell, The control unit 130 outputs a control signal for turning on / off the headlight when the vehicle enters the tunnel at night, which is an environment with low ambient illuminance, by grasping the ambient illuminance through the amount of light condensed by the module 131, Can be turned ON / OFF.

5 is an exploded perspective view showing a configuration of a conventional solar tracking sensor.

1 to 4 are merely the main points of the present invention, and various designs can be made within the technical scope thereof, so that the present invention is limited to the configurations of Figs. 1 to 4 It is self-evident.

110: outer surface 111: dome lens
112: Apparent connector 113: Pore
120: ball lens 130:
131: light receiving module 132: main body connector
CA: Concentration area

Claims (6)

Appearance 110; A ball lens 120; A main body 130; And a control unit for detecting the position of the sun, the sun tracking sensor comprising:
The inner surface 110 may be formed,
A dome lens 111 for primarily focusing sunlight incident from the outside; And
And a cover connector (112) for connecting the dome lens (111) to the main body (130)
The ball lens 120 may be,
The second lens 113 condenses the sunlight condensed by the dome lens 111,
The main body (130)
The ball lens 120 receives the secondary sunlight,
And a light receiving module (131) for outputting an optical signal for the received sunlight,
Wherein,
Analyzes the optical signal output from the light receiving module 131 and outputs a control signal,
The gap 113 is formed by coupling the surface 110 and the main body 130,
The sunlight incident from all directions outside is first refracted and condensed by the dome lens 111 and is incident on the gap 113. The sunlight passing through the gap 113 passes through the ball lens 120 And the light is incident on the light receiving module (131) after being subjected to second refraction and condensation.
delete The method according to claim 1,
The ball lens 120 may be,
And the focus of the light receiving module (131) is changed according to an incident direction and an incident angle of sunlight incident on the ball lens (120).
The method according to claim 1,
Wherein the light receiving module (131) is formed of photodiodes (131a, 131b, 131c, 131d) having the same shape.
The method according to claim 1,
The control unit may include a database capable of detecting the position of the sun and the ambient illuminance according to the position of the light-collecting area CA located in the light-receiving module 131 and the amount of sunlight to be collected. Sun tracking sensor.
The method according to claim 1,
Wherein the controller is able to determine the ambient illuminance by analyzing the amount of light received by the light receiving module and output a control signal according to the ambient illuminance.
KR1020150094987A 2015-07-03 2015-07-03 Solar tracking sensor having double condenser lens KR101771676B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008086278A2 (en) 2007-01-08 2008-07-17 Edtek, Inc. Conversion of solar energy to electrical and/or heat energy
JP2013004684A (en) 2011-06-15 2013-01-07 Nabtesco Corp Solar tracking device and photovoltaic power generator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140017048A (en) 2012-07-27 2014-02-11 주식회사 유비테크 Sunlight tracking sensor having four partition system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008086278A2 (en) 2007-01-08 2008-07-17 Edtek, Inc. Conversion of solar energy to electrical and/or heat energy
JP2013004684A (en) 2011-06-15 2013-01-07 Nabtesco Corp Solar tracking device and photovoltaic power generator

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