WO2021221031A1 - Dispositif d'irradiation - Google Patents

Dispositif d'irradiation Download PDF

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Publication number
WO2021221031A1
WO2021221031A1 PCT/JP2021/016696 JP2021016696W WO2021221031A1 WO 2021221031 A1 WO2021221031 A1 WO 2021221031A1 JP 2021016696 W JP2021016696 W JP 2021016696W WO 2021221031 A1 WO2021221031 A1 WO 2021221031A1
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WO
WIPO (PCT)
Prior art keywords
light
photoelectric conversion
light source
conversion device
irradiation
Prior art date
Application number
PCT/JP2021/016696
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English (en)
Japanese (ja)
Inventor
俊平 西中
俊 植木
豪 鎌田
Original Assignee
シャープ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2021221031A1 publication Critical patent/WO2021221031A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/30—Circuit arrangements or systems for wireless supply or distribution of electric power using light, e.g. lasers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • 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
    • H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • 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
    • 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
    • Y02E10/52—PV systems with concentrators

Definitions

  • the present invention relates to an irradiation device.
  • This disclosure claims priority based on Japanese Patent Application No. 2020-078951 filed in Japan on April 28, 2020, the contents of which are incorporated herein by reference.
  • Patent Document 1 discloses an irradiation device that irradiates a photoelectric conversion device with a laser beam.
  • the irradiation device described in Patent Document 1 is suitable for irradiating a long-distance light from an irradiation device provided on the main island to a photoelectric conversion device provided on a remote island, for example. Since the technique of Cited Document 1 uses a laser light source, it may be difficult to irradiate light safely and efficiently in a manned environment.
  • a main object of the present disclosure is to provide an irradiation device capable of safely and efficiently irradiating a photoelectric conversion device in a wireless power feeding device with light.
  • the irradiation device of one embodiment of the present invention is an irradiation device that irradiates a photoelectric conversion device with light, and comprises a first light source that emits first light including light having a predetermined wavelength generated by the photoelectric conversion device. It includes a second light source that emits a second light for aligning the irradiation region of the first light with the photoelectric conversion device, in which the amount of light in the photoelectric conversion device is smaller than that of the first light.
  • FIG. 1 It is a schematic diagram of an example of the wireless power supply device which concerns on Embodiment 1.
  • FIG. It is a schematic diagram which shows another example of the 2nd light source. It is a figure which shows an example of the functional configuration of the wireless power supply device of FIG. It is a figure which shows an example of the processing flow of the wireless power feeding apparatus of FIG. It is a schematic diagram of an example of the wireless power supply device which concerns on Embodiment 2.
  • FIG. 1 is a schematic view of the wireless power feeding device 1 according to the present embodiment.
  • the wireless power feeding device 1 includes, for example, an irradiation device 100 and a photoelectric conversion device 200.
  • the photoelectric conversion device 200 has, for example, an irradiated surface 201.
  • the photoelectric conversion device 200 generates electricity by irradiating the irradiated surface 201 with light having a predetermined wavelength. That is, the photoelectric conversion device 200 generates electricity by receiving light on the irradiated surface 201.
  • the photoelectric conversion device 200 includes, for example, a solar cell that receives light on the irradiated surface 201 to generate electricity. Examples of this solar cell include a silicon-based solar cell, a compound-based solar cell, an organic-based solar cell, and the like.
  • the predetermined wavelength is around 1100 nm.
  • the wireless rescue device 1 can be inexpensive. In this way, by using a silicon-based solar cell, a predetermined wavelength can be set in an infrared region of, for example, 780 nm or more.
  • the irradiation device 100 irradiates, for example, the irradiated surface 201 of the photoelectric conversion device 200 with light having a predetermined wavelength.
  • the irradiation device 100 includes, for example, a first light source 110, a second light source 120, and a parabolic mirror 130.
  • the first light source 110 emits the first light including the predetermined wavelength.
  • the first light preferably has a peak near the predetermined wavelength.
  • the first light emitted from the first light source 110 is reflected by, for example, the parabolic mirror 130 and is irradiated on the photoelectric conversion device 200, more specifically, the irradiated surface 201.
  • the parabolic mirror 130 can efficiently irradiate the irradiated surface 201 with the first lights 11 and 11 emitted from the first light source 110.
  • the region between the first lights 11 and 11 is the irradiation region of the first light.
  • the light reflected by the parabolic mirror 130 is the main light, so that the light not reflected by the parabolic mirror 130 is the light. , It is not necessary to consider it as the irradiation region of the first light. That is, only the reflected light in the parabolic mirror 130 may be considered.
  • the first light source 110 is not particularly limited, and is, for example, an LED, one that transmits and scatters laser light from a laser generator with a scattering plate or the like, or irradiates laser light from a laser generator to emit light to a phosphor. There are things that make you want to.
  • the first light emitted from the irradiation device 100 to the photoelectric conversion device 200 is not particularly limited, but is, for example, diffused light (light having a divergent wave plane) or parallel light (having a parallel wave plane). It may be either. Considering safety, the first light is preferably diffused light or incoherent light.
  • the first light emitted from the first light source 110 is reflected by the parabolic mirror 130, but further, a lens such as a collimating lens provided on the irradiation side of the first light source 110. May be used to converge the first light emitted from the first light source 110. Further, the parabolic mirror and the lens may be used together.
  • the second light source 120 emits the second light.
  • the second light is set so as to overlap the irradiation region of the first light, for example, on the photoelectric conversion device 200, more specifically, the irradiated surface 201. In FIG. 1, it is shown by the second light 21.21 emitted from the irradiation device 100. Then, when the second light is irradiated to the photoelectric conversion device 200 (irradiated surface 201), at least a part of the irradiation region of the first light is aligned with the photoelectric conversion device 200 (irradiated surface 201). ..
  • the photoelectric conversion device 200 is irradiated with the first light to generate electricity. That is, the second light is light for aligning the irradiation region of the first light with the photoelectric conversion device 200. Further, the output of the second light source 120 is lower than the output of the first light source 110.
  • the amount of light on the second light irradiated surface 201 is smaller than the amount of light on the first light irradiated surface 201 (photoelectric conversion device 200).
  • the irradiation region of the first light can be aligned with the irradiated surface 201 (photoelectric conversion device 200) while suppressing the power consumption in the irradiation device 100. Even if the first light is invisible, its existence can be visually recognized by the second light, so that safety can be ensured so that obstacles such as people do not enter the irradiation area.
  • the second light source 120 preferably emits parallel light, for example. Above all.
  • the second light source 120 preferably emits coherent light such as laser light. That is, the second light source 120 is preferably, for example, a laser irradiation device.
  • the second light source 120 By configuring the second light source 120 with a laser irradiation device, it is possible to irradiate the irradiated surface 201 (photoelectric conversion device 200) with highly directional coherent light, and the irradiation region of the first light is more reliably covered. It can be aligned with the irradiation surface 201 (photoelectric conversion device 200).
  • the second light source 120-1 includes, for example, a main light source 121 and a light guide member 123.
  • the main light source 121 emits a second light 122.
  • the main light source 121 is, for example, a laser generator.
  • the light guide member 123 includes a scattering unit 124 and a light guide unit 125.
  • the scattering unit 124 scatters the irradiated light.
  • the light guide unit 125 directs a part of the irradiated light in a predetermined direction.
  • the light guide unit 125 directs, for example, by reflecting a part of the irradiated light.
  • the second light source 120-1 a part of the second light 122 emitted from the main light source 121 is taken out as the second light 21 by the light guide portion 125 in the light guide member 123. Further, the other portion of the second light 122 emitted from the main light source 121 is scattered by the scattering unit 124.
  • the second light source 120-1 extracts the second light 21 of only a part of the second light 122 even if the second light 122 having a high output is irradiated from the main light source 121. Therefore, safety can be improved.
  • the second light has a peak at a wavelength different from the first light, specifically, a predetermined wavelength.
  • the second light source 120 preferably emits light in the visible region, for example, a wavelength of 380 nm to 780 nm, that is, when the second light is light in the visible region, a person confirms the second light. Since it can be seen that the second light is aligned with the irradiated surface 201, the irradiation region of the first light can be easily aligned with the irradiated surface 201.
  • the first light when the predetermined wavelength is in the infrared region, the first light is invisible to humans and it may be difficult to align the first light with the photoelectric conversion device 200 only by the first light source 110.
  • the second light is preferably light in the wavelength region of green light near 532 nm. Thereby, visibility from a person can be improved.
  • the second light has a peak wavelength in the visible light region.
  • the person can visually recognize the second light, and even if the person's eyes are irradiated, the adverse effect can be reduced by avoiding it by blinking or the like.
  • FIG. 1 shows the light amount distribution on the irradiated surface 201 of the first light emitted from the first light source 110. Then, in the second light irradiation region on the irradiated surface 201, the amount of light of the first light in the first light irradiation region is maximum.
  • the irradiation region of the second light is a point, it is preferable to set the position of this point so that the position where the amount of light of the first light is maximized coincides with each other.
  • the second light irradiation region has a predetermined area, it is preferable to set the second irradiation region so that the position where the light amount of the first light is maximized is included. That is, it can be said that the irradiation region of the second light is smaller than the irradiation region of the first light.
  • the irradiated surface 201 can be irradiated with the maximum amount of the first light, so that the photoelectric conversion device 200 can efficiently receive the first light from the irradiation device 100 and generate electricity more efficiently.
  • the order of light emission from the first light source 110 and the second light source 120 in the irradiation device 100 is not particularly limited, but the first light source 110 is based on the second light from the second light source 120.
  • the light may be emitted after being aligned with the photoelectric conversion device 200, or the second light source 120 may emit light in a state where both the first light source 110 and the second light source 120 emit light. It may be aligned by the light of.
  • the irradiation device 100 has a first control unit 140, a first communication unit 150, and a first storage unit (not shown) in addition to the first light source 110 and the second light source 120.
  • the first control unit 140 controls the operation of each part of the irradiation device 100, more specifically, the first light source 110, the second light source 120, and the like.
  • the first control unit 140 is composed of, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit).
  • the first storage unit is, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), or the like, and stores a program executed by the first control unit 140 and various parameters used by the first control unit 140.
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the first communication unit 150 is an interface or the like and communicates with the photoelectric conversion device 200.
  • the photoelectric conversion device 200 includes, for example, a photoelectric conversion unit 210, a detection unit 220, a second control unit 230, a second communication unit 240, and a second storage unit (not shown).
  • the photoelectric conversion unit 210 converts the light irradiated to the irradiated surface 201 into electricity and generates electricity, for example.
  • the detection unit 220 detects, for example, the wavelength of the light emitted to the irradiated surface 201.
  • the second control unit 230 controls the operation of each unit of the photoelectric conversion device 200.
  • the second control unit 230 is composed of, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit).
  • the second storage unit is, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), or the like, and stores a program executed by the second control unit 230 and various parameters used by the second control unit 230.
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the second communication unit 240 is an interface or the like and communicates with the irradiation device 100.
  • the first control unit 140 controls the second light source 120 when the irradiation device 100 is activated, and emits the second light from the second light source 120 (S101). That is, the first control unit 140 turns on the second light source 120.
  • the second light emitted from the second light source 120 is applied to the irradiated surface 201 of the photoelectric conversion device 200.
  • the second light irradiated to the irradiated surface 201 is detected by the detection unit 220 (S102).
  • the amount of the second light emitted to the irradiated surface 201 may be at a level that can be detected by the detection unit 220, and is preferably a weak amount of light that does not affect the human body.
  • the second control unit 230 transmits a detection signal indicating that the irradiation device 100 is irradiated with the second light from the second communication unit 240 (S103).
  • the first communication unit 150 receives the detection signal.
  • the first control unit 140 controls the first light source 110 based on the detection signal to emit the first light from the first light source 110 (S104). That is, the first control unit 140 turns on the first light source 110.
  • the photoelectric conversion device 200 is irradiated with the first light.
  • the photoelectric conversion device 200 receives the first light and generates electricity.
  • the first light can be aligned with the photoelectric conversion device 200 by the second light, so that the photoelectric conversion device 200 efficiently receives the first light. It can generate electricity. Further, since the photoelectric conversion device 200 can be efficiently irradiated from the first light source 110, which consumes more power, the power consumption in the irradiation device 100 can be suppressed.
  • the first control unit 140 may turn off the first light source 110 when the second light detected by the detection unit 220 is no longer detected.
  • the second control unit 230 stops from the second communication unit 240. Send a signal.
  • the first control unit 140 controls the first light source 110 based on the stop signal received by the first communication unit 150 to stop the emission of the first light from the first light source 110.
  • the detection unit 220 can perform the second. Light can be detected individually.
  • the obstacle between the irradiation device 100 and the photoelectric conversion device 200 can be detected by the detection unit 220.
  • the second light When the second light is no longer detected, it is considered that an obstacle such as a person exists between the irradiation device 100 and the photoelectric conversion device 200, and by turning off the first light source 110 as described above, the first light source 110 is turned off. Safety to the human body can be ensured.
  • the irradiation device 100 may be provided with an operating notification unit such as lighting or sounding an alarm sound based on the above communication signal.
  • the photoelectric conversion device 200 is provided with the detection unit 220, but the present invention is not limited to this.
  • the photoelectric conversion device 200 is provided with a retroreflective unit and the irradiation device 100 is provided with a detection unit (reflected light detection unit).
  • the second light from the second light source 120 is reflected by the retroreflective unit on the irradiation device 100.
  • This reflected light may be detected by a detection unit provided in the irradiation device 100.
  • the first light emitted from the irradiation device 100 can be aligned without communicating with the photoelectric conversion device 200.
  • a power source such as a battery in the photoelectric conversion device 200.
  • the retroreflective part include those that reflect incident light in the opposite direction, such as glass beads and prisms.
  • the second communication unit may be configured to transmit information such as an instrument provided in the photoelectric conversion device 200 to the first communication unit.
  • the instrument is a fuel gauge such as a gas cylinder, it generates electricity by the first light emitted to the photoelectric conversion device 200, reads the value of the instrument by this power generation, and first from the second communication unit. Send to the communication section.
  • the information of the instrument in the photoelectric conversion device 200 can be acquired on the irradiation device 100 side. Therefore, it is not always necessary to provide the photoelectric conversion device 200 with a power source such as a storage battery.
  • an actuator or the like that adjusts the irradiation direction of the irradiation device 100 toward the photoelectric conversion device 200 may be provided based on the position information transmitted from the photoelectric conversion device 200.
  • the wireless power feeding device 1 of the present embodiment is different from the first embodiment in that it has a plurality of second light sources 120.
  • FIG. 5 is a schematic view of the wireless power feeding device 1 according to the present embodiment. The description of the same configuration as that of the first embodiment will be omitted.
  • the wireless power feeding device 1 of the present embodiment has a plurality of second light sources 120.
  • the plurality of second light sources 120 By having the plurality of second light sources 120, it is possible to align the region where the amount of light of the first light is high with respect to the irradiated surface 201.
  • the second light source 120 is laser light as in the first embodiment
  • the second light indicated by the irradiated surface 201 is close to a point, but the second light source 120 is provided by the plurality of second light sources 120 as in the present embodiment.
  • the region where the amount of light of the first light is high can be aligned with the irradiated surface 201.
  • the first high light intensity region includes, for example, a point where the first light intensity emitted from the irradiation device 100 on the irradiated surface 201 is the maximum light intensity. Further, for example, when the light from the second light source 120 is irradiated so as to have one peak on the light receiving surface and is radially attenuated from the maximum light intensity point, the region having a high first light intensity is the irradiated surface.
  • the present invention is not limited to the above-described embodiment, and is substantially the same as the configuration shown in the above-described embodiment, has the same effect and effect, or can achieve the same object. May be replaced with.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)

Abstract

L'invention concerne un dispositif d'irradiation étant capable d'irradier efficacement un dispositif de conversion photoélectrique dans un dispositif de transmission d'énergie sans fil avec de la lumière. Le présent dispositif d'irradiation irradie un dispositif de conversion photoélectrique avec de la lumière, et comprend : une première source de lumière qui émet une première lumière qui comprend de la lumière d'une longueur d'onde prescrite avec laquelle le dispositif de conversion photoélectrique génère de l'énergie ; et une seconde source de lumière qui émet une seconde lumière, dont la quantité de lumière dans le dispositif de conversion photoélectrique est inférieure à celle de la première lumière, et qui est destinée à positionner la région d'irradiation de la première lumière dans le dispositif de conversion photoélectrique.
PCT/JP2021/016696 2020-04-28 2021-04-27 Dispositif d'irradiation WO2021221031A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020078951 2020-04-28
JP2020-078951 2020-04-28

Publications (1)

Publication Number Publication Date
WO2021221031A1 true WO2021221031A1 (fr) 2021-11-04

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PCT/JP2021/016696 WO2021221031A1 (fr) 2020-04-28 2021-04-27 Dispositif d'irradiation

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010510766A (ja) * 2006-11-21 2010-04-02 パワービーム インコーポレイテッド 電気的にパワー供給される装置への光学的パワービーミング
JP2015231314A (ja) * 2014-06-06 2015-12-21 日産自動車株式会社 移動体給電システムおよび移動体給電方法
JP2016123179A (ja) * 2014-12-24 2016-07-07 日産自動車株式会社 移動体給電システムおよび移動体給電方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010510766A (ja) * 2006-11-21 2010-04-02 パワービーム インコーポレイテッド 電気的にパワー供給される装置への光学的パワービーミング
JP2015231314A (ja) * 2014-06-06 2015-12-21 日産自動車株式会社 移動体給電システムおよび移動体給電方法
JP2016123179A (ja) * 2014-12-24 2016-07-07 日産自動車株式会社 移動体給電システムおよび移動体給電方法

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