CN111564912A - Laser wireless energy transmission system based on box-type photovoltaic receiver - Google Patents
Laser wireless energy transmission system based on box-type photovoltaic receiver Download PDFInfo
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- CN111564912A CN111564912A CN202010548383.1A CN202010548383A CN111564912A CN 111564912 A CN111564912 A CN 111564912A CN 202010548383 A CN202010548383 A CN 202010548383A CN 111564912 A CN111564912 A CN 111564912A
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- laser
- box
- type photovoltaic
- receiver
- photovoltaic receiver
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 33
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 238000009827 uniform distribution Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 2
- KXNLCSXBJCPWGL-UHFFFAOYSA-N [Ga].[As].[In] Chemical compound [Ga].[As].[In] KXNLCSXBJCPWGL-UHFFFAOYSA-N 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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Classifications
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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
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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
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/20—Optical components
-
- 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
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- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a laser wireless energy transmission system based on a box-type photovoltaic receiver, which comprises a laser emitting device for emitting laser, a box-type photovoltaic receiver for receiving the laser and converting the laser into electric energy through reflection, wherein when the laser enters a cavity of the box-type photovoltaic receiver, one part of the laser is absorbed by a photovoltaic cell arranged on the inner wall of the box-type photovoltaic receiver and is converted into the electric energy, the other part of the laser is reflected on the inner wall of the box-type photovoltaic receiver, so that the propagation direction of the laser is changed and irradiates the other position of the inner wall of the box-type photovoltaic receiver, two processes of absorption or reflection are generated again, and the laser is reflected for multiple times until the laser is absorbed and converted, the utilization rate of the laser is improved, the laser is reflected for multiple times on the inner wall of the cavity of the box-type photovoltaic receiver and finally forms uniform distribution, the energy loss of laser in the transmission process is reduced, and the photoelectric conversion efficiency of the laser wireless energy transmission system based on the box-type photovoltaic receiver is improved.
Description
Technical Field
The invention relates to the technical field of wireless energy transmission, in particular to a laser wireless energy transmission system based on a box-type photovoltaic receiver.
Background
The laser wireless energy transmission is a mode of converting light energy into electric energy by adopting the photoelectric conversion function of a photovoltaic cell, although the traditional flat-plate photovoltaic cell can be used as a photovoltaic receiver, however, under the irradiation of Gaussian distributed laser, the laser intensity received by the photovoltaic cell at the center of the facula is weak, the laser received by the photovoltaic cell at the edge of the facula is weak, the output current is correspondingly small when the laser received by part of the photovoltaic cells is weak, when the working current of the laser wireless energy transmission system exceeds the output current generated by the photovoltaic cells, the part of the photovoltaic cells are placed in a reverse bias state, become a load from a power supply in an operating circuit and consume energy, therefore, the output power of the laser wireless energy transmission system is low, and the problem that the photoelectric conversion efficiency of the photovoltaic receiver is far lower than that of a single photovoltaic cell occurs.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The invention aims to solve the technical problem that the prior art is defective, and provides a laser wireless energy transmission system based on a box-type photovoltaic receiver, aiming at improving the utilization rate of laser and solving the problem of low photoelectric conversion efficiency of a photovoltaic cell.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a laser wireless energy transmission system based on a box-type photovoltaic receiver is characterized by comprising a laser emitting device used for emitting laser and the box-type photovoltaic receiver used for receiving the laser and converting the laser into electric energy through reflection.
Further, box photovoltaic receiver is the cubic structure that six photovoltaic boards constitute.
Further, the photovoltaic panel includes a mounting board, and a photovoltaic cell bonded to one side of the mounting board.
Furthermore, the mounting plate is provided with n rows of mounting grooves towards one side of the interior of the box-type photovoltaic receiver, and each row of mounting grooves is used for bonding n photovoltaic cells.
Further, still include the laser receiving arrangement who sets up between laser emission device and box photovoltaic receiver.
Further, the laser receiving device is a conical light receiver, a large-diameter end face at the bottom of the conical light receiver is a laser input end face, and a small-diameter end face at the top of the conical light receiver is a laser output end face.
Furthermore, a laser incident hole is formed in the center of one face of the box-type photovoltaic receiver and used for inserting the laser output end face.
Furthermore, the side surface of the cone-shaped light receiver is plated with a reflecting film.
Further, the laser emitting device comprises a laser for emitting laser light and a beam expanding lens for collimating the laser light.
Further, the photovoltaic power generation system further comprises an electric energy manager electrically connected with the box-type photovoltaic receiver, and a terminal device electrically connected with the electric energy manager.
The invention discloses a laser wireless energy transmission system based on a box-type photovoltaic receiver, which comprises a laser emitting device for emitting laser, a box-type photovoltaic receiver for receiving the laser and converting the laser into electric energy through reflection, when the laser enters a cavity of the box-type photovoltaic receiver, one part of the laser is absorbed by a photovoltaic cell arranged on the inner wall of the box-type photovoltaic receiver and converted into the electric energy, the other part of the laser is reflected on the inner wall of the box-type photovoltaic receiver, so that the propagation direction of the laser is changed and irradiates to the other position of the inner wall of the box-type photovoltaic receiver, and then two processes of absorption or reflection are carried out again, so as to analogize the repeated reflection of the laser until the laser is absorbed and converted, thereby improving the utilization rate of the laser, after the laser is reflected for multiple times on the inner wall of the cavity of the box, the energy loss of laser in the transmission process is reduced, and the photoelectric conversion efficiency of the laser wireless energy transmission system based on the box-type photovoltaic receiver is further improved.
Drawings
FIG. 1 is a schematic structural diagram of a laser wireless energy transmission system based on a box-type photovoltaic receiver according to a preferred embodiment of the present invention;
fig. 2 is a schematic external structural view of the box-type photovoltaic receiver 14 in fig. 1;
fig. 3 is a schematic structural diagram of an inner wall of the box-type photovoltaic receiver 14 in fig. 1.
The implementation, functional features and advantages of the present invention will be described with reference to the accompanying drawings.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention, and as shown in the drawing, the laser wireless energy transmission system based on a box-type photovoltaic receiver includes: a laser emitting device for emitting laser, and a box-type photovoltaic receiver 14 for receiving the laser and converting the laser into electric energy through reflection.
The laser emitting device is used for emitting laser with different wavelengths, when the laser enters the cavity of the box-type photovoltaic receiver 14, one part of the laser is absorbed by the photovoltaic cells arranged on the inner wall of the box-type photovoltaic receiver 14 and converted into electric energy, the other part of the laser is reflected on the inner wall of the box-type photovoltaic receiver 14, so that the propagation direction of the laser is changed, the laser irradiates to the other position of the inner wall of the box-type photovoltaic receiver 14, and two absorption or reflection processes are continuously carried out, so that the absorption and reflection processes are continuously carried out, namely the laser is confined in the closed cavity, the laser is reflected for multiple times until the laser is absorbed and converted, the utilization rate of the laser is improved, the laser is finally formed to be uniformly distributed on the inner wall after the laser is reflected for multiple times on the inner wall of the cavity of the box-type photovoltaic receiver 14, and the energy loss of, the photoelectric conversion efficiency of the laser wireless energy transmission system based on the box-type photovoltaic receiver is further improved.
In some embodiments, referring to fig. 2, the box-type photovoltaic receiver 14 is a cubic structure of six-sided photovoltaic panels 21, and referring to fig. 3, the photovoltaic panels 21 include a mounting plate 39, and photovoltaic cells 31-38 bonded to one side of the mounting plate 39. The mounting plate 39 is a square flat plate made of a metal material, six mounting plates 39 are provided, and the number of photovoltaic cells mounted on each mounting plate 39 is the same. The photovoltaic cells 31-38 can be made of monocrystalline silicon, polycrystalline silicon, gallium arsenide (GaAs), indium gallium arsenide (InGaAs) and other materials, the band gap width of the semiconductor material made of these materials is exactly matched with the wavelength of 808nm or other wavelength laser, the photoelectric conversion efficiency is very high, and the photovoltaic cells 31-38 can be 20mmX20mm, 52mmX52mm and other sizes.
Six box photovoltaic receiver 14 that photovoltaic board 21 constitutes, simple structure, stable performance, durable, even light is effectual, and the machining precision is high, and the process time is short to the processing cost is low.
In some preferred embodiments, the box-type photovoltaic receiver-based laser wireless energy transmission system further comprises a laser receiving device disposed between the laser emitting device and the box-type photovoltaic receiver 14. The laser receiving device is a conical light receiver 13, the large-diameter end face at the bottom of the conical light receiver 13 is a laser input end face, and the small-diameter end face at the top of the conical light receiver 13 is a laser output end face. Referring to fig. 2, the laser output end face is inserted into a laser incident hole 22 in the box-type photovoltaic receiver 14 at the center of the photovoltaic plate 21.
The conical light receiver is constructed of a transparent material, such as fused silica. The end face with the large diameter at the bottom of the conical light receiver 13 is used as the laser input end face because the laser emitted by the laser emitting device is transmitted in a long distance, the diameter of a laser spot is increased, a large-area optical device is needed to collect the transmitted laser, the laser is collected as much as possible, and the difficulty of projecting the laser spot to the conical light receiver 13 is reduced. The opening area of the laser incident hole 22 can be reduced by taking the top small-diameter end face of the conical light receiver 13 as a laser output end face, the area ratio of the non-photovoltaic cell to the inner wall of the box-type photovoltaic receiver 14 is further reduced, and the area of the inner wall of the box-type photovoltaic receiver 14 for receiving laser is increased, so that the light uniformity is improved, the photoelectric conversion efficiency is increased, and the output power of a laser wireless energy transmission system based on the box-type photovoltaic receiver is improved.
The inner side surface of the conical light receiver 13 is plated with a reflecting film, the specification of the reflecting film can be 808nm, 532nm, 880nm and 1064nm, when the laser touches the inner side surface of the conical light receiver 13, the laser can be reflected, and after multiple reflections, the laser finally converges on the laser output end surface, so that the transmission efficiency of the laser is improved.
In some specific embodiments, the laser emitting device includes a laser 11 for emitting laser light and a beam expander 12 for collimating the laser light. The laser 11 may be a 808nm semiconductor laser, a 880nm semiconductor laser, or a 1064nm LD (laser diode) pumped solid-state laser, which has the advantages of small size, long service life, reliable operation, etc. The beam expander 12 for collimating the laser beam may be of a galilean type or a keplerian type, and may be a fixed-magnification beam expander or a variable-magnification beam expander. The collimated laser has a small divergence angle and a large spot diameter, and has small transmission loss when entering air or other media for long-distance transmission, and the increase of the laser spot size can also avoid the burning of the laser input end surface of the conical light receiver 13 by the high-energy laser with a small spot.
The laser wireless energy transmission system based on the box type photovoltaic receiver further comprises an electric energy manager 15 electrically connected with the box type photovoltaic receiver 14, and a terminal device 16 electrically connected with the electric energy manager 15. After the laser is absorbed by the box-type photovoltaic receiver 14 and converted into electric energy, the MPPT controller of the electric energy manager 15 detects the generated dc voltage and dc current, calculates the output power of the photovoltaic cell, realizes tracking of the maximum power point, realizes maximum power output of the solar cell panel through the BOOST or BUCK circuit, and finally provides electric energy supply for the terminal device 16.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A laser wireless energy transmission system based on a box-type photovoltaic receiver is characterized by comprising a laser emitting device used for emitting laser and the box-type photovoltaic receiver used for receiving the laser and converting the laser into electric energy through reflection.
2. The laser wireless energy transmission system based on box-type photovoltaic receiver as claimed in claim 1, characterized in that the box-type photovoltaic receiver is a cubic structure composed of six-sided photovoltaic panels.
3. The laser wireless energy transfer system based on box-type photovoltaic receiver of claim 2, characterized in that the photovoltaic panel comprises a mounting plate and a photovoltaic cell adhered to one side of the mounting plate.
4. The laser wireless energy transmission system based on box-type photovoltaic receiver as claimed in claim 3, wherein the side of the mounting plate facing the inside of the box-type photovoltaic receiver is provided with n rows of mounting grooves, and each row of mounting grooves is used for bonding n photovoltaic cells.
5. The laser wireless energy transmission system based on box-type photovoltaic receiver as claimed in any one of claims 1 to 4, further comprising a laser receiving device disposed between the laser emitting device and the box-type photovoltaic receiver.
6. The laser wireless energy transmission system based on the box-type photovoltaic receiver is characterized in that the laser receiving device is a cone-type light receiver, the bottom large-diameter end face of the cone-type light receiver is a laser input end face, and the top small-diameter end face of the cone-type light receiver is a laser output end face.
7. The laser wireless energy transmission system based on the box-type photovoltaic receiver is characterized in that a laser incident hole is formed in the center of one face of the box-type photovoltaic receiver and used for inserting the laser output end face.
8. The laser wireless energy transmission system based on box-type photovoltaic receiver as claimed in claim 6, characterized in that the side of the cone-type light receiver is plated with a reflective film.
9. The laser wireless energy transmission system based on box-type photovoltaic receiver as claimed in claim 1, wherein the laser emitting device comprises a laser for emitting laser light and a beam expander for collimating the laser light.
10. The laser wireless energy transmission system based on box-type photovoltaic receiver as claimed in claim 1, further comprising a power manager electrically connected with the box-type photovoltaic receiver, and a terminal device electrically connected with the power manager.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010548383.1A CN111564912A (en) | 2020-06-16 | 2020-06-16 | Laser wireless energy transmission system based on box-type photovoltaic receiver |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010548383.1A CN111564912A (en) | 2020-06-16 | 2020-06-16 | Laser wireless energy transmission system based on box-type photovoltaic receiver |
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| CN111564912A true CN111564912A (en) | 2020-08-21 |
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| CN202010548383.1A Pending CN111564912A (en) | 2020-06-16 | 2020-06-16 | Laser wireless energy transmission system based on box-type photovoltaic receiver |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7328296B2 (en) | 2021-10-13 | 2023-08-16 | ソフトバンク株式会社 | Mobile and optical wireless power supply system |
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2020
- 2020-06-16 CN CN202010548383.1A patent/CN111564912A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7328296B2 (en) | 2021-10-13 | 2023-08-16 | ソフトバンク株式会社 | Mobile and optical wireless power supply system |
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