CN207442544U - Laser radio charging unit based on kaleidoscope homogenizer technology - Google Patents
Laser radio charging unit based on kaleidoscope homogenizer technology Download PDFInfo
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- CN207442544U CN207442544U CN201721440681.9U CN201721440681U CN207442544U CN 207442544 U CN207442544 U CN 207442544U CN 201721440681 U CN201721440681 U CN 201721440681U CN 207442544 U CN207442544 U CN 207442544U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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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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Abstract
A kind of laser radio charging unit based on kaleidoscope homogenizer technology, the charging unit includes laser, beam expanding lens, kaleidoscope, photovoltaic battery panel and charging control circuit, the outlet side of the laser is mounted with beam expanding lens, the beam expanding lens outlet side is mounted with kaleidoscope, the outlet side of the kaleidoscope is mounted with photovoltaic battery panel, and the photovoltaic battery panel is connected with charging control circuit；The kaleidoscope is used to destroy incident laser by multiple reflections the interference effect of original laser light source so that light energy output redistributes, and output intensity distribution can be very uniform.The utility model provide it is a kind of it is simple in structure, adjustment is simple, flexible design, construction cycle are short, processing technology is simple, processing cost is low, cheap, the laser radio charging unit based on kaleidoscope homogenizer technology that is evenly distributed.
Description
Technical field
The utility model is related to wireless charging technology, especially a kind of laser radio charging unit.
Background technology
Laser radio energy transmission technology is risen in 2000 or so, as the development of high power laser technology obtains quickly
Development, can be widely applied to the various fields such as national defence, new-energy automobile and electronic product, and many special use particularly can be achieved
On the way, application prospect is had an optimistic view of by more and more people.But laser radio energy transmission technology be related to laser structure design,
The problems such as high power laser light efficiency of transmission in an atmosphere, one-wavelength laser radiation lower photocell transformation efficiency, either laser skill
The leading America and Europe of art or the relatively backward country of laser technology, laser charging technique is all at the early-stage, the very few nothing of relevant report
It is several.
Wherein due to the Gaussian Energy Distribution of laser beam, cause Energy distribution uneven, the light that each photovoltaic cell receives
Strong different, photogenerated current is of different sizes, the current limited of series circuit in the photovoltaic cell of photogenerated current minimum, parallel circuit
Voltage is limited to the photovoltaic cell of photovoltage minimum, causes the loss of transmission energy or even causes the damage of photovoltaic cell, drop
Low electric energy delivery efficiency.
Therefore need that Gaussian beam is converted to the equally distributed flat-top light of energy by beam shaping, to eliminate laser light
Caused ill effect is unevenly distributed by force.So-called beam shaping is the COMPLEX AMPLITUDE by light beam on input plane through optical system
After system adjustment, the process of satisfactory light beam COMPLEX AMPLITUDE on output plane is transformed to.Beam shaping technology has aperture light
Late shaping, diffraction optical element shaping, non-spherical lens shaping and microlens array shaping etc..Above method is adaptable
Difference, cost of manufacture is high, can not be according to the defects of incident beam variation on-line tuning.
The content of the invention
In order to overcome the uneven caused electric energy delivery efficiency of Laser beam energy distribution in existing laser radio charging unit low
The problem of and the deficiencies of existing optical shaping method is of high cost, bad adaptability, the utility model uses ten thousand flowers of high reflectance
For cylinder as shaping element, the multiple reflections of kaleidoscope destroy the defeated of the interference effect acquisition uniform intensity distribution of original laser
Light extraction.The device have simple simple in structure, adjustment, flexible design, construction cycle are short, and processing technology is simple, processing cost is low,
It is cheap and more practical applications will be obtained.
Technical solution is used by the utility model solves its technical problem：
A kind of laser radio charging unit based on kaleidoscope homogenizer technology, the charging unit include laser,
Beam expanding lens, kaleidoscope, photovoltaic battery panel and charging control circuit, the outlet side of the laser are mounted with beam expanding lens, the expansion
Beam mirror outlet side is mounted with kaleidoscope, and the outlet side of the kaleidoscope is mounted with photovoltaic battery panel, the photovoltaic battery panel and fills
Electric control circuit connects；The kaleidoscope is used to destroy incident laser by multiple reflections the interference of original laser light source
Effect so that light energy output redistributes, and output intensity distribution can be very uniform.
Further, for the kaleidoscope using the same mirror bonding of 4 face length and width into hollow device, minute surface is inside, is formed and cut
Face is square, and the high reflection of glass mirror is facing towards inside
Either：The end face of the kaleidoscope is triangle, pentagon or six deformations.
Further, the laser is semiconductor laser or diode pumping solid laser.
The beam expanding lens is the more power beam expansion lens of Galilean type, and beam expanding lens is made of two eyeglasses, is inputted including one recessed
Lens and one output convex lens, input mirror by virtual focus beam Propagation to outgoing mirror, two eyeglass two sides be coated with 808nm or
1000nm narrowbands anti-reflection film.
The photovoltaic battery panel transfers the solar-electricity of arsenic InGaAs materials using flat polysilicon, monocrystalline silicon, GaAs, indium
Pond plate, band gap width and 808nm wavelength or the matching of 1000nm laser.
The charging control circuit includes voltage stabilization and control system, defeated using microminiature lifting/voltage reducing controller chip
Stable DC voltage output can be obtained by entering the arbitrary DC voltages of 0.9V-5V.
The technical concept of the utility model is：The utility model proposes the laser based on kaleidoscope homogenizer technology without
Micro USB electric installation selects kaleidoscope with high reflectivity, allows incident laser on kaleidoscope reflecting surface after multiple reflections,
The interference effect of original laser light source is greatly destroyed, light energy output redistribution obtains even intensity distribution in exit end
Emergent light.The device has that simple simple in structure, adjustment, flexible design, construction cycle are short, and processing technology is simple, are processed into
This is low, cheap and will obtain more practical applications, solves Laser beam energy distribution uneven caused photogenerated current, voltage
It is of different sizes, so as to cause transmission energy loss and electric energy delivery efficiency it is low the problems such as.
The beneficial effects of the utility model are mainly manifested in：
1st, using kaleidoscope as homogenizer in the laser radio charging unit based on kaleidoscope homogenizer technology
Method destroys the interference effect of original laser light source by multiple reflections so that light energy output redistributes, output intensity
Distribution can be very uniform.It is different to solve the uneven caused photogenerated current of Laser beam energy distribution, voltage swing, so as to cause transmission energy
The problems such as amount loss and low electric energy delivery efficiency.The methods of compared with optical shaping device and diffraction optical element is taken, have
Simple in structure, adjustment is simple, flexible design, construction cycle are short, processing technology is simple, processing cost is low, it is cheap and will
To more practical applications.
2nd, the laser radio charging unit based on kaleidoscope homogenizer technology is had and is passed using laser radio charging modes
Defeated distance is remote, efficiency of transmission is high, reception device is small, charging rate is fast and it is efficient the features such as.The device efficiency of transmission is with transmission
The attenuation very little of distance, the energy loss that laser transmits within 10 meters are less than 1%.
3rd, the laser radio charging unit based on kaleidoscope homogenizer technology uses semiconductor laser or diode
Light-pumped solid state laser is used as wireless charging light source, has light-weight, and operating is reliable, little power consumption, efficient, small,
The advantages of good portability.Wherein 808nm long wavelength semiconductor lasers and 1000nm or so wavelength diode light-pumped solid state laser
Beam density, the energy gap width of the wavelength photovoltaic cell module of transferring arsenic (InGaAs) material with GaAs materials and indium respectively match, have
There is higher photoelectric conversion efficiency, and thermal losses is small.
4th, it is big using beam expanding lens adjustment laser facula in the laser radio charging unit based on kaleidoscope homogenizer technology
It is small, ensure that laser facula is substantially homogeneous is covered on photovoltaic receiver, do not occur hot spot for photovoltaic receiver it is too small or
The phenomenon that excessive.The photovoltaic receiver made will not be overheated under the irradiation of the high intensity laser of small light spot and damaged；It again will not hot spot
It is excessive to be wasted beyond photovoltaic receiver range of receiving, cause loss of the laser in transmission process.
5th, the laser radio charging unit middle plateform formula photovoltaic receiver based on kaleidoscope homogenizer technology is by multiple
Photovoltaic cells connection in series-parallel form, have it is simple in structure, it is small, it is easy to use.Ensure the output electricity of each combinational circuit
Pressure, output current are similar, and further overcome laser light uneven according to Energy distribution, the electric energy of photocell receiver is caused to export
The problem of reduction of efficiency.
6th, charging control circuit uses voltage stabilization in the laser radio charging unit based on kaleidoscope homogenizer technology
And control system, it is defeated between guarantee photovoltaic cells for raising low output voltage and reducing high output voltage
Go out in the range of voltage difference and become smaller, improve the delivery efficiency of photovoltaic receiver.With it is small, power density is big, efficient, can
By the advantages that property is high, circuit structure is simple, perfect in shape and function.
Description of the drawings
Fig. 1 is the schematic diagram of the laser radio charging unit based on kaleidoscope homogenizer technology.
Fig. 2 is the structure chart of kaleidoscope.
Fig. 3 is kaleidoscope uniform beam schematic diagram.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings.
With reference to Fig. 1~Fig. 3, a kind of laser radio charging unit based on kaleidoscope homogenizer technology, including laser
1st, beam expanding lens 2, kaleidoscope 3, photovoltaic battery panel 4, charging control circuit 5 and terminal device 6.
Semiconductor laser can be used in laser 1 in laser radio charging unit based on kaleidoscope homogenizer technology,
With light-weight, the advantages of operating is reliable, little power consumption, efficient, small, good portability, as laser radio charging light source.
The wavelength of semiconductor laser 808nm and the solar panel band gap width of GaAs materials just match, photoelectric conversion efficiency
Up to 50%, so for photovoltaic battery panel 4 in the system using the laser of 808nm wavelength preferably with GaAs.
Laser 1 can also use diode pumping in laser radio charging unit based on kaleidoscope homogenizer technology
Solid state laser, solid state laser not only has the characteristics that small, long lifespan, operating are reliable, also with higher output work
Rate (such as 100kw), and can be in advantages such as the higher radiances of high-power lower holding, therefore also be adapted for laser and remotely charge.
It is worth noting that optical maser wavelength caused by diode pumping solid laser be more than 1000nm, for generally use Si and
It is also very low in this wavelength period photoelectric conversion efficiency, it is therefore desirable to select for the solar panel of GaAs materials
The indium of 1000nm laser wave strong point high conversion efficiencies transfers arsenic (InGaAs) (electricity conversion 50% at 1064nm) solar-electricity
Pond plate.
Beam expanding lens 2 is expanded using more times of Galilean type in laser radio charging unit based on kaleidoscope homogenizer technology
Mirror, beam expanding lens are made of two eyeglasses, are included the concavees lens and a convex lens exported of an input, are inputted mirror by virtual focus
Beam Propagation is coated with 808nm 1000nm narrowbands anti-reflection film to outgoing mirror, two eyeglass two sides, increases the light transmittance of laser, expands
The laser beam that laser 1 is sent is transformed by Shu Jing meets the required laser facula shape of laser radio charging, i.e., to laser
It is collimated, reduces the angle of divergence of laser beam, adjust laser facula size, the laser facula made is substantially homogeneous to be irradiated to entirely
Be not in the phenomenon that hot spot is too small with respect to photovoltaic battery panel 4 or excessive on photovoltaic battery panel 4.This ensures that photovoltaic
Solar panel 4 will not be overheated under the irradiation of the high intensity laser of small light spot and damaged；Again will not hot spot it is excessive exceed photovoltaic battery panel 4
Range of receiving and waste, cause loss of the laser in transmission process, improve transmission range.
As shown in Fig. 2, kaleidoscope 3 is long using 4 faces in the laser radio charging unit based on kaleidoscope homogenizer technology
Mirror bonding as width is into hollow device, and minute surface is inside, and Formation cross-section is square, and the high reflection of glass mirror is facing towards interior
Side.Kaleidoscope of the end face for polygons such as triangle as depicted, pentagon, six deformations can also be used, it can be according to reality
Effect selection kaleidoscope end profile and size.
As shown in figure 3, the having of sending of laser 1 in the laser radio charging unit based on kaleidoscope homogenizer technology
The laser oblique incidence of certain angle of divergence enters inside kaleidoscope, and inputs light beam is after the multiple reflections of internal reflection surface from output
Face exports, and the interference effect of original laser light source is greatly destroyed during multiple reflections so that and light energy output redistributes,
Thus the light distribution of outgoing end face can be very uniform.Light 1,2,3 in such as figure is that light 1,3 is symmetrically distributed in input terminal
2 both sides of light are presented and are inputted with light 2 for the laser with certain angle of divergence of optical axis, after the multiple reflections of kaleidoscope,
The arrangement of light 1,3,2 is formed in exit end, i.e., after multiple total reflection, emergent ray is propagated with certain angle of divergence
Light beam, but it is rambling to all directions propagate, form many superpositions in kaleidoscope output terminal different incidence angles light beam
Secondary souce, reach light integral action, realize output light uniformization.So the incident laser with certain angle of divergence is through excessive
Secondary internal reflection forms equally distributed output light in exit.Kaleidoscope homogenizer technology have it is simple in structure, adjustment is simple
Easily, the advantages that flexible design, construction cycle are short, and processing technology is simple, processing cost is low, cheap and more realities will be obtained
Border is applied, and solves the uneven caused photogenerated current of Laser beam energy distribution, voltage swing difference, so as to which transmission energy be caused to damage
The problems such as electric energy delivery efficiency of becoming estranged is low.
Photovoltaic battery panel 4 uses flat polycrystalline in laser radio charging unit based on kaleidoscope homogenizer technology
Silicon, monocrystalline silicon, GaAs, indium transfer the solar panel of arsenic (InGaAs) material, band gap width and 808nm wavelength or
1000nm laser just matches, and has very high photoelectric conversion efficiency.Photovoltaic receiver is made of multiple photovoltaic cells,
It is small with simple in structure, it is easy to use.
In laser radio charging unit based on kaleidoscope homogenizer technology charging control circuit 5 include voltage stabilization and
Control system using microminiature lifting/voltage reducing controller chip, inputs the arbitrary DC voltages of 0.9V-5V, can obtain stable DC electricity
Pressure output, has many advantages, such as high conversion efficiency, small, power density is big, reliability is high, circuit structure is simple, perfect in shape and function.
The insufficient photovoltaic cell of light intensity is irradiated for reducing being illuminated the higher photovoltaic cells output voltage of light intensity and raising
Unit output voltage so as to reduce output voltage difference between the two, improves the delivery efficiency of photovoltaic receiver.
Photovoltaic battery panel 4 changes into laser signal in laser radio charging unit based on kaleidoscope homogenizer technology
Electric signal after electric signal is controlled by the voltage stabilizing of charging control circuit 5, realizes that the long distance wireless of terminal device 6 charges.
Claims (7)
1. a kind of laser radio charging unit based on kaleidoscope homogenizer technology, it is characterised in that：The charging unit bag
Laser, beam expanding lens, kaleidoscope, photovoltaic battery panel and charging control circuit are included, the outlet side of the laser, which is mounted with, to be expanded
Mirror, the beam expanding lens outlet side are mounted with kaleidoscope, and the outlet side of the kaleidoscope is mounted with kaleidoscope, the photovoltaic battery panel
It is connected with charging control circuit；The kaleidoscope is used to incident laser destroying original laser light source by multiple reflections
Interference effect so that light energy output redistributes, and output intensity distribution can be very uniform.
2. the laser radio charging unit as described in claim 1 based on kaleidoscope homogenizer technology, it is characterised in that：Institute
Kaleidoscope is stated using the same mirror bonding of 4 face length and width into hollow device, minute surface is inside, and one section of formation is square, glass
The high reflection of mirror is facing towards inside
3. the laser radio charging unit as described in claim 1 based on kaleidoscope homogenizer technology, it is characterised in that：Institute
The end face of kaleidoscope is stated as triangle, pentagon or six deformations.
4. the laser radio charging unit based on kaleidoscope homogenizer technology as described in one of claims 1 to 3, feature
It is：The laser is semiconductor laser or diode pumping solid laser.
5. the laser radio charging unit based on kaleidoscope homogenizer technology as described in one of claims 1 to 3, feature
It is：The beam expanding lens is the more power beam expansion lens of Galilean type, and beam expanding lens is made of two eyeglasses, includes the concavees lens of an input
With one output convex lens, input mirror by virtual focus beam Propagation to outgoing mirror, two eyeglass two sides be coated with 808nm or
1000nm narrowbands anti-reflection film.
6. the laser radio charging unit based on kaleidoscope homogenizer technology as described in one of claims 1 to 3, feature
It is：The photovoltaic battery panel transfers the solar cell of arsenic InGaAs materials using flat polysilicon, monocrystalline silicon, GaAs, indium
Plate, band gap width and 808nm wavelength or the matching of 1000nm laser.
7. the laser radio charging unit based on kaleidoscope homogenizer technology as described in one of claims 1 to 3, feature
It is：The charging control circuit includes voltage stabilization and control system, using microminiature lifting/voltage reducing controller chip, input
The arbitrary DC voltages of 0.9V-5V obtain stable DC voltage output.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834715A (en) * | 2017-11-02 | 2018-03-23 | 浙江工业大学 | Laser radio charging device based on kaleidoscope homogenizer technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107834715A (en) * | 2017-11-02 | 2018-03-23 | 浙江工业大学 | Laser radio charging device based on kaleidoscope homogenizer technology |
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