CN102185529B - Wireless charging system, light source-providing device and charging device - Google Patents
Wireless charging system, light source-providing device and charging device Download PDFInfo
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- CN102185529B CN102185529B CN201110122889.7A CN201110122889A CN102185529B CN 102185529 B CN102185529 B CN 102185529B CN 201110122889 A CN201110122889 A CN 201110122889A CN 102185529 B CN102185529 B CN 102185529B
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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
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The present invention proposes a kind of wireless charging system, including: light source-providing device, described light source-providing device is used for the light launching specific band to provide the spectral energy in specific band; And photoelectric conversion device, described photoelectric conversion device has light baffle, and described smooth baffle has high photoelectric transformation efficiency so that described spectral energy is converted into electric energy for the spectral energy in described specific band. The embodiment of the present invention provides the light of specific band by light source-providing device for photoelectric conversion device such that it is able to be greatly enhanced the charge efficiency of wireless charging.
Description
Technical field
The present invention relates to electronic equipment manufacturing technical field, particularly to a kind of wireless charging system, light source-providing device and charging device.
Background technology
Along with improving constantly of people's living standard, all kinds of mobile electronic equipment functions from strength to strength, use more and more general. Powerful however as function, the power consumption problem of mobile electronic equipment is also more and more prominent. Therefore, how to be charged in time becoming problem demanding prompt solution for mobile electronic equipment. Traditional wired charging modes needs power supply and the equipment that is electrically charged such as to be coupled together by cable between mobile phone, therefore bothers very much, particularly will more increase the burden of user when several distinct devices are charged simultaneously. And the wired charging inlet between various equipment is varied, it is impossible to realize general, result in the existence of a large amount of dissimilar interface charger, cause the very big wasting of resources. Therefore, people just have developed the mode of wireless charging, can be broken away from the worry of cable and various interfaces by wireless charging, greatly facilitates the life of people. But existing wireless charging mode is mostly utilize microwave, electromagnetic induction, the principle of magnetic resonance carries out wireless charging, namely mostly utilizing radio wave to realize the transmission of energy, therefore structure is extremely complex, relatively costly, and due to energy transmission efficiency to charger and the size that is electrically charged between equipment coil, position and angle have serious dependence, and therefore the equipment of different vendor cannot realize general, thus causing that use is very inconvenient. More seriously the electromagnetic radiation revealed is likely to human body especially pregnant women and babies etc. is likely to result in potential grievous injury. Therefore a kind of more convenient, quick, energy-conservation wireless charging mode it is presently required.
Summary of the invention
The purpose of the present invention is intended at least solve one of above-mentioned technological deficiency, particularly solves current wireless charging mode structure complicated, the defect that charge efficiency is low.
For reaching above-mentioned purpose, one aspect of the present invention proposes a kind of wireless charging system, including: light source-providing device, described light source-providing device is used for the light launching specific band to provide the spectral energy in specific band; And photoelectric conversion device, described photoelectric conversion device has light baffle, and described smooth baffle has high photoelectric transformation efficiency so that described spectral energy is converted into electric energy for the spectral energy in described specific band.
The embodiment of the present invention provides the light of specific band by light source-providing device for photoelectric conversion device such that it is able to be greatly enhanced the charge efficiency of wireless charging.
In one embodiment of the invention, described smooth baffle includes the multijunction structure light cell adopting SiC or Group III-V compound semiconductor material to make, and the energy gap of described compound semiconductor materials is corresponding with described specific band. More than 70% can being reached by tying the transformation efficiency of direct forbidden band compound semiconductor materials light baffle more, such as batteries such as InGaN, InGaP, AlGaN, adopting purple LED or blue-ray LED etc. if coordinated, it is possible to achieve very high electric energy efficiency of transmission.
In one embodiment of the invention, described light source-providing device farther includes: light emitting module, is used for the light launching specific band to provide the spectral energy in specific band; With power supply management module, for powering for described light emitting module.
In one embodiment of the invention, described light source-providing device also includes: be positioned at the reflector layer of described light emitting module rear end.
In one embodiment of the invention, described light emitting module is LED, LED array or low power laser.
In one embodiment of the invention, described LED or LED array include one or more in white light LEDs, blue-ray LED, ultraviolet leds and purple LED.
In one embodiment of the invention, also include: sensing unit, for detecting the area and/or position that are placed on the electronic equipment on light source-providing device, controls module and opens part or all in light emitting module for the area/according to electronic equipment or regioselectivity. In one embodiment of the invention, described sensing unit is electric capacity touch screen, resistance touch screen, light sensor or pressure transducer.
In one embodiment of the invention, also including: light focusing unit, described light focusing unit carries out optically focused for the light that described light emitting module is launched.
Another aspect of the present invention also proposed a kind of light source-providing device, including: light emitting module, described light emitting module is used for the light launching specific band to provide the spectral energy in specific band; With power supply management module, described power supply management module is for powering for described light emitting module.
In one embodiment of the invention, described light emitting module is LED, LED array or low power laser.
In one embodiment of the invention, specifically, described LED, LED array include white light LEDs, blue-ray LED (conversion efficiency more than 60%), ultraviolet LED or one or more in purple LED (conversion efficiency more than 80%).
In one embodiment of the invention, also including: sensing unit, described sensing unit be placed on area and/or the regioselectivity of electronic equipment on described light emitting module for basis opens part or all in described light emitting module. In one embodiment of the invention, described sensing unit is electric capacity touch screen, resistance touch screen, light sensor or pressure transducer. In embodiments of the present invention, sensing unit can, according to the size of electronic equipment, select to open the part in corresponding light emitting module, such that it is able to realize the versatility of light source-providing device.
In one embodiment of the invention, also including: light focusing unit, described light focusing unit carries out optically focused for the light that described light emitting module is launched, for instance can adopt Fresnel condenser lens. In embodiments of the present invention, the light focusing unit light collection by large stretch of LED array transmitting can be passed through to photoelectric conversion device, thus improving charging rate and charge efficiency.
In one embodiment of the invention, also include: be positioned at the reflector layer of described light emitting module rear end, light utilization can be improved by this reflector layer, thus improving electricity conversion further.
The embodiment of the present invention also proposed a kind of charging device on the other hand, including: light baffle, described smooth baffle has high photoelectric transformation efficiency so that described spectral energy is converted into electric energy for the spectral energy in described specific band; And charge storage unit, described charge storage unit is connected to store described electric energy with described smooth baffle.
In one embodiment of the invention, described smooth baffle includes the multijunction structure light cell adopting SiC or Group III-V compound semiconductor material to make, and the energy gap of described compound semiconductor materials is corresponding with described specific band.
The embodiment of the present invention also proposed a kind of electronic equipment on the other hand, including charging device as above.
Aspect and advantage that the present invention adds will part provide in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or that add aspect and advantage will be apparent from easy to understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the wireless charging system structure chart of the embodiment of the present invention;
Fig. 2 is one embodiment of the invention light source-providing device is have the schematic diagram that the electronic equipment of photoelectric conversion device charges;
Fig. 3 is embodiment of the present invention light source-providing device is have the axonometric chart that the electronic equipment of photoelectric conversion device charges;
Fig. 4 is the schematic diagram of embodiment of the present invention light source-providing device;
Fig. 5 is another embodiment of the present invention light source-providing device is have the schematic diagram that the electronic equipment of photoelectric conversion device charges;
Fig. 6 is the structure chart of embodiment of the present invention light source-providing device;
Fig. 7 is the charging device structure chart of the embodiment of the present invention.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish. The embodiment described below with reference to accompanying drawing is illustrative of, and is only used for explaining the present invention, and is not construed as limiting the claims.
In describing the invention, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or hint indication device or element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, can be mechanically connected or electrical connection, can also be the connection of two element internals, it is possible to be joined directly together, it is also possible to be indirectly connected to by intermediary, for the ordinary skill in the art, it is possible to understand the concrete meaning of above-mentioned term as the case may be.
As it is shown in figure 1, be the wireless charging system structure chart of the embodiment of the present invention. This wireless charging system includes light source-providing device 100 and photoelectric conversion device 200. Light source-providing device 100 is used for the light launching specific band to provide the spectral energy in specific band. Photoelectric conversion device 200 has light baffle, and this light baffle has high photoelectric transformation efficiency so that spectral energy is converted into electric energy for the spectral energy in specific band, thus being embodied as the wireless charging of electronic equipment. The embodiment of the present invention provides the light of specific band by light source-providing device 100 for photoelectric conversion device 200 such that it is able to be greatly enhanced the charge efficiency of wireless charging.
In one embodiment of the invention, this light baffle includes the multijunction structure light cell adopting SiC or Group III-V compound semiconductor material to make, the energy gap of this compound semiconductor materials is corresponding with described specific band, for instance SiC, InGaN, AlGaN, InGaP or InGaNAs etc. Specifically, for instance light source-providing device includes LED or the LED array of high-power and high-luminance, such as blue-ray LED, ultraviolet LED or purple LED etc. In another embodiment of the present invention, light source-providing device may also include low power laser.
The embodiment of the present invention can reach more than 70% by the transformation efficiency of more piece direct forbidden band compound semiconductor materials light baffle, such as batteries such as SiC, InGaN, InGaP, AlGaN or InGaNAs, purple LED or blue-ray LED etc. is adopted, it is possible to achieve very high electric energy efficiency of transmission if coordinated.
In one embodiment of the invention, electronic equipment it be also possible to use transparent hull cell or common solaode as photoelectric conversion device 200, as installed transparent membrane solaode etc. on mobile phone screen, although conversion efficiency can be lower, but facilitate use, product appearance is also had no effect.
In one embodiment of the invention, described light source-providing device includes the LED of high-power and high-luminance, LED array or low power laser. Specifically, described LED array includes white light LEDs, blue-ray LED (conversion efficiency 60%), ultraviolet LED or one or more in purple LED (conversion efficiency 80%).
As in figure 2 it is shown, be that there is the schematic diagram that the electronic equipment of photoelectric conversion device charges for embodiment of the present invention light source-providing device. As it is shown on figure 3, be that there is the axonometric chart that the electronic equipment of photoelectric conversion device charges for embodiment of the present invention light source-providing device. As shown in Figure 4, for the schematic diagram of embodiment of the present invention light source-providing device. In embodiments of the present invention, light source-providing device 100 is tabular, electronic equipment is made to can be placed on light source-providing device 100, when carrying out wireless charging, electronic equipment has the face of light baffle in photoelectric conversion device 200 relative with light source-providing device 100, preferably, light source-providing device 100 and photoelectric conversion device contact with each other, so that most of light that light source-providing device is launched can both enter among photoelectric conversion device 200. It should be understood that, although light source-providing device 100 directly contacts with photoelectric conversion device 200 in the figure, but in short distance, decay very little characteristic owing to light has and surrounding will not be constituted radiation effect, therefore light source-providing device 100 and photoelectric conversion device 200 can also between be separated with predetermined distance.
In one embodiment of the invention, in order to avoid when the electronic equipment of small volume is placed on light source-providing device, the LED array of light source-providing device 100 is all turned on, thus causing the defect of unnecessary waste. In the present invention, light source-providing device 100 also includes sensing unit 130, sensing unit 130, for detecting the area and/or position that are placed on the electronic equipment on light source-providing device 100, controls module 160 and opens part or all in light emitting module 110 for the area/according to electronic equipment or regioselectivity. Preferably, sensing unit 130 is electric capacity touch screen, resistance touch screen, light sensor or pressure transducer. In embodiments of the present invention, sensing unit 130 can, according to the size of electronic equipment, select to open the part in corresponding light emitting module, such that it is able to realize the versatility of light source-providing device 100.
In one embodiment of the invention, this light source-providing device 100 also includes the reflector layer 140 being positioned at light emitting module 110 rear end, can improve light utilization by this reflector layer 140, thus improving electricity conversion further.
As it is shown in figure 5, be that there is the schematic diagram that the electronic equipment of photoelectric conversion device charges for another embodiment of the present invention light source-providing device. In this embodiment, between light source-providing device 100 and photoelectric conversion device 200, it is additionally provided with collecting lens, the light that light source-providing device 100 sends is converged, thus improve the energy density of photoelectric transformation efficiency and charging. Fresnel condenser lens etc. can also be adopted in other embodiments of the invention.
In other embodiments of the invention, light source-providing device 100 can also be disposed over, thus can be following multiple electronic equipment chargings with photoelectric conversion device 200.
In an embodiment of the present invention, in order to increase the versatility of light source-providing device, namely making light source-providing device both can be the mobile terminal charging that mobile phone, iPhone etc. are less, it is alternatively the terminal unit charging that iPad, HPC, notebook etc. are bigger, therefore the size being sized larger than electronic equipment of usual light source-providing device. As it is shown on figure 3, can be that two photoelectric conversion devices varied in size 200 charge on a light source-providing device 100 simultaneously.
As shown in Figure 6, for the structure chart of embodiment of the present invention light source-providing device. Light source-providing device 100 includes light emitting module 110, power supply management module 120. Light emitting module 110 is used for the light launching specific band to provide the spectral energy in specific band. Power supply management module 120 is for powering for light emitting module 110.
In order to avoid when the electronic equipment of small volume is placed on light source-providing device, the LED array of light source-providing device 100 is all turned on, thus causing the defect of unnecessary waste. In the present invention, light source-providing device 100 also includes sensing unit 130 and controls module 160, sensing unit 130, for detecting the area and/or position that are placed on the electronic equipment on light source-providing device 100, controls module 160 and opens part or all in light emitting module 110 for the area/according to electronic equipment or regioselectivity. Preferably, sensing unit 130 is electric capacity touch screen, resistance touch screen, light sensor or pressure transducer etc. In embodiments of the present invention, sensing unit 130 can, according to the size of electronic equipment, select to open the part in corresponding light emitting module, such that it is able to realize the versatility of light source-providing device 100.
In one embodiment of the invention, light source-providing device 100 also includes light focusing unit, and light focusing unit carries out optically focused for the light that described light emitting module is launched, for instance preferably can adopt Fresnel condenser lens. In embodiments of the present invention, the light focusing unit light collection by large stretch of LED array transmitting can be passed through to photoelectric conversion device, thus improve the energy density of photoelectric transformation efficiency and charging.
As it is shown in fig. 7, be the charging device structure chart of the embodiment of the present invention. This charging device 300 includes light baffle 310 and charge storage unit 320. Light baffle 310 has high photoelectric transformation efficiency so that described spectral energy is converted into electric energy for the spectral energy in specific band. Charge storage unit 320 is connected to store electric energy with light baffle 310, thus being power electronic equipment. It is capable of spectral energy in specific band being had significantly high conversion efficiency thus improving charge efficiency by the light baffle of the embodiment of the present invention.
In one embodiment of the invention, light baffle 310 includes the multijunction structure light cell adopting SiC or Group III-V compound semiconductor material to make, the energy gap of this compound semiconductor materials is corresponding with described specific band, for instance SiC, InGaN, InGaP, AlGaN or InGaNAs etc.
The embodiment of the present invention also proposed a kind of electronic equipment, including charging device as above.
The wireless charging system of the embodiment of the present invention also has the advantage that,
What 1, the transmission medium of energy adopted is light rather than electromagnetic wave, thus electromagnetic-radiation-free harm, human body is definitely harmless;
2, the area of light source-providing device can be made very big, therefore can simultaneously to multiple equipment charges, highly versatile, and the light source that simultaneously can control only charge position as required is opened, thus very energy-conservation;
3, energy transmission density can be made very big, the accurate adjustment needing coil dimension coupling and position unlike electromagnetism charging modes just can obtain required voltage and power, different light baffle areas means different power, and the different voltages needed for mobile equipment adopt different light baffles;
4, without emc issue, electromagnetic radiation will not be leaked out, not on other electron component electronic equipment being produced impact, not disturb other wireless communication signal, such as mobile phone signal etc.;
5, light ray energy is less with distance increase decay, and effective propagation path farther out, needs the directional beam technologies of near-field coupling or complexity unlike electromagnetism charging;
6, light source-providing device adopts the leakage of slab construction light little, and environment or human influence is very little;
7, suitable in various sheathing materials, the mobile equipment adopting various sheathing materials can be charged, such as with the equipment of leather sheath, cabinet, metal shell etc., electromagnetic type charger is then helpless to the equipment of metal shell, it is difficult to reach promising result;
8, photoelectric conversion device is still provided that certain conversion efficiency under sunlight, promptly can be charged by sunlight or other light source when there is no charge power supply, use when supply is emergent, induction charging then under any circumstance must have externally fed power supply just can be charged;
9, realize mainly through the structure regulating light baffle with the demand of power owing to difference moves the voltage of equipment, therefore light source-providing device also has the advantage of highly compatible, the various criterion of different company can be taken into account, do not need unified standard, have only to meet fundamental importance, therefore different equipment can functionally realize general, and simply energy transmission efficiency may some difference.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention. In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example. And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, being appreciated that and these embodiments can be carried out multiple change, amendment, replacement and modification without departing from the principles and spirit of the present invention, the scope of the invention and equivalency.
Claims (8)
1. a wireless charging system, it is characterised in that including:
Light source-providing device, described light source-providing device is used for the light launching specific band to provide the spectral energy in specific band; With
Photoelectric conversion device, described photoelectric conversion device has light baffle, described smooth baffle has high photoelectric transformation efficiency so that described spectral energy is converted into electric energy for the spectral energy in described specific band, wherein, described smooth baffle includes the multijunction structure light cell adopting SiC or group ��-�� compound semiconductor material to make, and the energy gap of described compound semiconductor materials is corresponding with described specific band.
2. wireless charging system as claimed in claim 1, it is characterised in that described light source-providing device farther includes:
Light emitting module, is used for the light launching specific band to provide the spectral energy in specific band; With
Power supply management module, for powering for described light emitting module.
3. wireless charging system as claimed in claim 2, it is characterised in that described light source-providing device also includes:
It is positioned at the reflector layer of described light emitting module rear end.
4. wireless charging system as claimed in claim 2, it is characterised in that described light emitting module is LED, LED array or low power laser.
5. wireless charging system as claimed in claim 4, it is characterised in that described LED or LED array include one or more in white light LEDs, blue-ray LED, ultraviolet leds and purple LED.
6. wireless charging system as claimed in claim 2, it is characterised in that also include:
Sensing unit, for detecting the area and/or position that are placed on electronic equipment on light source-providing device; With
Control module, open part or all in described light emitting module for the area/according to electronic equipment or regioselectivity.
7. wireless charging system as claimed in claim 6, it is characterised in that described sensing unit is electric capacity touch screen, resistance touch screen, light sensor or pressure transducer.
8. wireless charging system as claimed in claim 2, it is characterised in that also include:
Light focusing unit, described light focusing unit carries out optically focused for the light that described light emitting module is launched.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110122889.7A CN102185529B (en) | 2011-05-12 | 2011-05-12 | Wireless charging system, light source-providing device and charging device |
| PCT/CN2012/075357 WO2012152227A1 (en) | 2011-05-12 | 2012-05-11 | Wireless charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110122889.7A CN102185529B (en) | 2011-05-12 | 2011-05-12 | Wireless charging system, light source-providing device and charging device |
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| CN102185529A CN102185529A (en) | 2011-09-14 |
| CN102185529B true CN102185529B (en) | 2016-06-01 |
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| CN201110122889.7A Active CN102185529B (en) | 2011-05-12 | 2011-05-12 | Wireless charging system, light source-providing device and charging device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102355163B (en) * | 2011-09-09 | 2014-06-04 | 赵东晶 | Wireless charging system, light source-providing device and charging device |
| WO2012152227A1 (en) * | 2011-05-12 | 2012-11-15 | Guo Lei | Wireless charging system |
| KR102086667B1 (en) | 2012-08-23 | 2020-03-10 | 삼성전자 주식회사 | Method and apparatus for wireless charging of user device |
| CN103117571B (en) * | 2013-01-18 | 2015-09-02 | 深圳市金立通信设备有限公司 | A kind ofly provide method and the relevant apparatus of energy for terminal |
| CN103531651B (en) * | 2013-10-28 | 2015-09-23 | 北京理工大学 | A kind of nine grids type laser-electric energy transducer |
| CN104168062A (en) * | 2014-08-25 | 2014-11-26 | 中国科学院半导体研究所 | Energy-self-feeding visible light wireless communication system |
| CN105515077A (en) * | 2014-10-15 | 2016-04-20 | 苏州超锐微电子有限公司 | Laser charging processing method and device |
| CN106681010A (en) * | 2016-12-06 | 2017-05-17 | 华中科技大学 | Semiconductor laser beam Fresnel focusing device |
| CN108540050A (en) * | 2017-03-06 | 2018-09-14 | 中国农业大学 | Wireless charging device for electric vehicle based on photoelectric coupling and electric vehicle |
| US10374470B1 (en) | 2018-08-31 | 2019-08-06 | At&T Intellectual Property I, L.P. | Wireless energy transfer in a far-field environment |
| CN109510296B (en) * | 2018-11-26 | 2022-10-04 | 努比亚技术有限公司 | Terminal charging method and device based on graphene screen, terminal and storage medium |
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