CN201113482Y - Radio electric energy transmission and charging equipment - Google Patents
Radio electric energy transmission and charging equipment Download PDFInfo
- Publication number
- CN201113482Y CN201113482Y CNU2007200879014U CN200720087901U CN201113482Y CN 201113482 Y CN201113482 Y CN 201113482Y CN U2007200879014 U CNU2007200879014 U CN U2007200879014U CN 200720087901 U CN200720087901 U CN 200720087901U CN 201113482 Y CN201113482 Y CN 201113482Y
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model relates to a magnetic field resonant wireless charging device. A charging system consists of a wireless RF magnetic field transmitting circuit and a wireless RF magnetic field induction charging circuit which are independent of each other. The wireless RF magnetic field transmitting circuit consists of a voltage reducing-stabilizing circuit, a frequency oscillating circuit, an amplifying circuit and a magnetic field transmitting coil series circuit. The wireless RF magnetic field induction charging circuit is formed by that: after a magnetic field induction coil is serially connected with a rectifier circuit, one output end of the rectifier circuit is serially connected with a charging circuit, a rechargeable battery and the rectifier circuit, and the other output end of the rectifier circuit is serially connected with a resonance circuit, an oscillating coil, the charging circuit and the rechargeable battery.
Description
Technical field:
The utility model relates to a kind of wireless charging technology, particularly relates to a kind of wireless charging device of magnetic resonance.
Background technology:
The electric energy transmitting of existing electric equipment is wire transmission because the restriction of electric wire, electric equipment move very inconvenience, therefore use also very inconvenient, therefore on a lot of occasions and a lot of equipment and be not suitable for wired charging.For example: deep ocean work robot, deep layer petroleum detector, cardiac pacemaker, mobile phone, composite aircraft, walkman or the like.In addition, equipment that mobility is strong such as mobile phone etc. adopt the rechargeable battery charging, and rechargeable battery needs frequent charge, uses also very inconvenient.Have only Japan that corresponding primary product are arranged aspect wireless power transmission abroad at present, but properties of product are very undesirable, and are to charge to composite aircraft with wireless mode, coverage is very limited, can only realize in the scope about 1 centimetre.
The utility model content:
The purpose of this utility model is to overcome the weak point in the above-mentioned background technology, and a kind of wireless charging device solution of magnetic resonance is provided, and this device carries out electric energy transmitting effectively with long distance, wireless mode, and is applied widely, the efficiency of transmission height.
For achieving the above object, the technical solution that the utility model adopts is as follows:
Method provided by the utility model is to adopt less radio-frequency emission of magnetic field circuit and less radio-frequency magnetic field induction power supply circuits to form charging system, less radio-frequency emission of magnetic field circuit adopts fixing frequency of oscillation launching electromagnetic wave, and the electromagnetic wave generation electric current that less radio-frequency magnetic field induction power supply circuits adopt the frequency identical or close with the emission of magnetic field circuit to carry out self-oscillation and the emission of induction wireless radio-frequency (RF) magnetic field radiating circuit is powered to electrical equipment or rechargeable battery is charged.
Wireless power transmission charging device provided by the utility model, comprise by separate less radio-frequency emission of magnetic field circuit and less radio-frequency magnetic field induction charging circuit and forming, less radio-frequency emission of magnetic field circuit is made up of decompression voltage regulator, frequency oscillation circuit, amplifying circuit, emission of magnetic field coil, the dc power output end of decompression voltage regulator connects the amplifying circuit power input, the signal output part of frequency oscillation circuit is connected to the signal input part of amplifying circuit, and amplification circuit output end is connected to two ends of emission of magnetic field coil; Less radio-frequency magnetic field induction charging circuit is by the magnetic field induction coil, rectification circuit, detect sample circuit, resonant circuit, oscillator coil, charging circuit, rechargeable battery is formed, induction coil output in the coil groups is connected to the input of rectification circuit, the output of rectification circuit is connected to the input of charging circuit, the output of charging circuit is connected to the input of chargeable battery, the input of another output joint detection sample circuit of rectification circuit, the output that detects sample circuit is connected to the input of resonant circuit, and the output of resonant circuit is connected to the oscillator coil input in the coil groups.
Less radio-frequency emission of magnetic field circuit is provided with decompression voltage regulator, frequency oscillation circuit, amplifying circuit, emission of magnetic field coil, 220 volts of alternating currents are powered to frequency oscillation circuit, amplifying circuit by decompression voltage regulator, the frequency oscillation circuit vibration, oscillator signal amplifies rear drive emission of magnetic field coil by amplifying circuit, the emission of magnetic field coil produces alternating magnetic field and to emission all around, forms an alternating magnetic field around the emission of magnetic field coil; Less radio-frequency magnetic field induction charging circuit is provided with induction coil and oscillator coil, induction coil is connected to rectification circuit, the rectification circuit output current offers charging circuit, connect battery by charging circuit, when less radio-frequency magnetic field induction power supply circuits enter the alternating magnetic field effective range of less radio-frequency emission of magnetic field circuit, the induction coil of less radio-frequency magnetic field induction charging circuit produces weak current and offers rectification circuit, the faint induced current that the detection sample circuit is sent here rectification circuit detects sampling and the vibration of control resonant circuit, resonant circuit drives oscillator coil and produces resonant field, the oscillator coil of less radio-frequency magnetic field induction charging circuit forms and the identical or close oscillating magnetic field of less radio-frequency emission of magnetic field channel frequency around induction coil, two magnetic field resonance mutually in certain distance, resonate mutually and be enhanced in magnetic field, the resonance frequency of the induction coil of less radio-frequency magnetic field induction charging circuit is identical with the oscillator coil frequency of oscillation or close, the electromotive force that magnetic induction coil produces in two magnetic fields of resonating mutually strengthens, electric current increases, distance of reaction is farther, the induction coil output current offers rectification circuit, operating current is provided or by charging circuit chargeable battery is charged to electrical equipment after the rectification.
The emission of magnetic field coil that the utility model adopted, magnetic field induction coil and oscillator coil are magnetic core coil or air core coil.
Description of drawings:
Fig. 1 is the utility model less radio-frequency emission of magnetic field circuit block diagram;
Fig. 2 is the utility model less radio-frequency magnetic field induction charging circuit block diagram.
Embodiment:
With reference to Fig. 1 less radio-frequency emission of magnetic field circuit block diagram, this part is made up of decompression voltage regulator 1, frequency oscillation circuit 2, amplifying circuit 3, emission of magnetic field coil 4.220 volts of power inputs of receiving decompression voltage regulator 1 of civil power, dc power output end by decompression voltage regulator 1 connects amplifying circuit 3 power inputs, the signal output part of frequency oscillation circuit 2 is connected to the signal input part of amplifying circuit 3, and amplifying circuit 3 outputs connect two ends of the transmitting coil 4 of showing up.
With reference to Fig. 2 less radio-frequency magnetic field induction charging circuit block diagram, the coil groups 5 that this part is made up of magnetic field induction coil 6 and oscillator coil 10, rectification circuit 7, charging circuit 8, chargeable battery 9, resonant circuit 11, detection sample circuit 12 are formed.
The output of the induction coil 6 in the coil groups 5 is connected to the input of rectification circuit 7, the output of rectification circuit 7 is connected to the input of charging circuit 8, the output of charging circuit 8 is connected to the input of rechargeable battery 9, the input of another output joint detection sample circuit 12 of rectification circuit 7, the output that detects sample circuit 12 is connected to the input of resonant circuit 11, and the output of resonant circuit 11 is connected to the input of the oscillator coil 10 in the coil groups 5.
Operation principle is as follows: directly charge behind 220 volts of alternating currents processes of civil power decompression voltage regulator, 1 lowering and stabilizing blood pressure and give relevant amplifying circuit 3, frequency oscillation circuit 2 vibrations, oscillator signal is delivered to the input of amplifying circuit 3 by the output of oscillating circuit 2, and oscillator signal amplifies by amplifying circuit 3 that the back produces alternating magnetic fields by emission of magnetic field coil 4 and to launching in the air.
When less radio-frequency magnetic field induction charging circuit enters into the electromagnetic wave effective coverage range of less radio-frequency emission of magnetic field circuit, electromagnetic induction coil 6 in the coil groups 5 is sensed electromagnetic wave, electromagnetic induction coil 6 produces electric current and gives rectification circuit 7 and carry out rectification, rectification circuit 7 output weak currents are given the input of charging circuit 8 respectively and are detected the input of sampling circuit 12,8 pairs of rechargeable batteries of charging circuit 9 carry out trick charge, 12 pairs of rectification circuits 7 of detection sample circuit are sent weak current here and are detected sampling and 11 vibrations of control resonant circuit, resonant circuit 11 output currents drive oscillator coil 10 vibrations and produce alternating magnetic field, this alternating magnetic field in the certain distance scope and the alternating magnetic field that produces of the emission of magnetic field coil 4 of emission of magnetic field circuit resonate mutually, according to the magnetic resonance principle, the induction coil 6 of the coil groups 5 in less radio-frequency magnetic induction charging circuit induced electromotive force in mutual resonant field increases rapidly, induced current is directly given 8 pairs of rechargeable batteries of charging circuit 9 after by rectification circuit 7 rectifications and is carried out large current charge, and rechargeable battery 9 carries out Charge Management by charging circuit 8.
When less radio-frequency magnetic field induction charging circuit partly leaves the electromagnetic wave scope of less radio-frequency emission of magnetic field circuit, electromagnetic induction coil 6 inductions in the coil groups 5 are less than corresponding electromagnetic wave, electromagnetic induction coil 6 does not have electric current to give rectification circuit 7 to carry out rectification, rectification circuit 7 does not have electric current output, detection sample circuit 12 does not receive rectification circuit 7 and sends electric current here, detect 11 failures of oscillations of sample circuit 12 control resonant circuits, resonant circuit no-output current drives oscillator coil 10, so oscillator coil can't produce alternating magnetic field.
Claims (2)
1, a kind of wireless power transmission, charging device, it is characterized in that forming by less radio-frequency emission of magnetic field circuit and less radio-frequency magnetic field induction charging circuit, less radio-frequency emission of magnetic field circuit is by decompression voltage regulator (1), frequency oscillation circuit (2), amplifying circuit (3), emission of magnetic field coil (4) is formed, the dc power output end of decompression voltage regulator (1) connects amplifying circuit (3) power input, the signal output part of frequency oscillation circuit (2) connects the signal input part of amplifying circuit (3), and amplifying circuit (3) output connects two ends of emission of magnetic field coil (4); The coil groups (5) that less radio-frequency magnetic field induction charging circuit is made up of magnetic field induction coil (6) and oscillator coil (10), rectification circuit (7), detect sample circuit (12), resonant circuit (11), charging circuit (8), rechargeable battery (9) is formed, induction coil (6) output connects the input of rectification circuit (7), the output of rectification circuit (7) connects the input of charging circuit (8), the output of charging circuit (8) connects the input of rechargeable battery (9), the input of another output joint detection sample circuit (12) of rectification circuit (7), the output that detects sample circuit (12) connects the input of resonant circuit (11), and the output of resonant circuit (11) connects oscillator coil (10) input.
2, device according to claim 1 is characterized in that described emission of magnetic field coil (4), induction coil (6), oscillator coil (10) are magnetic core coil or air core coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200879014U CN201113482Y (en) | 2007-10-25 | 2007-10-25 | Radio electric energy transmission and charging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200879014U CN201113482Y (en) | 2007-10-25 | 2007-10-25 | Radio electric energy transmission and charging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201113482Y true CN201113482Y (en) | 2008-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200879014U Expired - Fee Related CN201113482Y (en) | 2007-10-25 | 2007-10-25 | Radio electric energy transmission and charging equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201113482Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101904733A (en) * | 2010-05-24 | 2010-12-08 | 清华大学 | Wireless energy transmission system and method |
| WO2011026282A1 (en) * | 2009-09-02 | 2011-03-10 | 北京华旗资讯数码科技有限公司 | Wireless charging device |
| CN102074987A (en) * | 2010-12-31 | 2011-05-25 | 科翔电子(深圳)有限公司 | Radio induction charging device and charging method for portable communication apparatus |
| CN103312014A (en) * | 2012-03-15 | 2013-09-18 | 纬创资通股份有限公司 | Wireless charging system and method for controlling same |
| CN105379137A (en) * | 2014-01-08 | 2016-03-02 | 联发科技（新加坡）私人有限公司 | Wireless power receiver with programmable power path |
| WO2017000428A1 (en) * | 2015-06-30 | 2017-01-05 | 京东方科技集团股份有限公司 | Magnetic resonant wireless charging circuit |
| CN106711524A (en) * | 2016-12-21 | 2017-05-24 | 北京灵铱科技有限公司 | Automatic battery changing device of floor sweeping robot |
-
2007
- 2007-10-25 CN CNU2007200879014U patent/CN201113482Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011026282A1 (en) * | 2009-09-02 | 2011-03-10 | 北京华旗资讯数码科技有限公司 | Wireless charging device |
| CN101904733A (en) * | 2010-05-24 | 2010-12-08 | 清华大学 | Wireless energy transmission system and method |
| CN101904733B (en) * | 2010-05-24 | 2012-06-20 | 清华大学 | Wireless energy transmission system and method |
| CN102074987A (en) * | 2010-12-31 | 2011-05-25 | 科翔电子(深圳)有限公司 | Radio induction charging device and charging method for portable communication apparatus |
| CN103312014A (en) * | 2012-03-15 | 2013-09-18 | 纬创资通股份有限公司 | Wireless charging system and method for controlling same |
| CN105379137A (en) * | 2014-01-08 | 2016-03-02 | 联发科技（新加坡）私人有限公司 | Wireless power receiver with programmable power path |
| CN105379137B (en) * | 2014-01-08 | 2018-01-02 | 联发科技（新加坡）私人有限公司 | Radio source receiver with programmable power supply path |
| WO2017000428A1 (en) * | 2015-06-30 | 2017-01-05 | 京东方科技集团股份有限公司 | Magnetic resonant wireless charging circuit |
| US9948147B2 (en) | 2015-06-30 | 2018-04-17 | Boe Technology Group Co., Ltd. | Magnetic resonance type wireless charging circuit |
| CN106711524A (en) * | 2016-12-21 | 2017-05-24 | 北京灵铱科技有限公司 | Automatic battery changing device of floor sweeping robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |