CN203278406U - Magnetic resonance wireless charging device - Google Patents
Magnetic resonance wireless charging device Download PDFInfo
- Publication number
- CN203278406U CN203278406U CN2013202566857U CN201320256685U CN203278406U CN 203278406 U CN203278406 U CN 203278406U CN 2013202566857 U CN2013202566857 U CN 2013202566857U CN 201320256685 U CN201320256685 U CN 201320256685U CN 203278406 U CN203278406 U CN 203278406U
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- magnetic field
- frequency
- wireless charging
- circuit
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Abstract
The utility model discloses a magnetic resonance wireless charging device comprising a miniaturized wireless charger and a miniaturized mobile terminal device. The wireless charger is provided with a wireless radio frequency magnetic field transmission circuit. The mobile terminal device is provided with a wireless radio frequency magnetic field induction receiving circuit. The wireless radio frequency magnetic field transmission circuit and the wireless radio frequency magnetic field induction receiving circuit both adopt an electromagnetic wave with an oscillation frequency of 10 Hz. The wireless radio frequency magnetic field induction receiving circuit receives the electromagnetic wave of the wireless radio frequency magnetic field transmission circuit within a range of 2.5 m. The magnetic resonance wireless charging device utilizes the specific 10 Hz electromagnetic wave and is applicable to the miniaturized mobile terminal device. The effective distance of the wireless charging of the magnetic resonance wireless charging device can be expanded to be within 2.5 m so that the power transmission can be realized in a wireless control manner.
Description
Technical field
The utility model relates to a kind of wireless charging device, relates in particular to a kind of magnetic resonance wireless charging method of supporting the mobile terminal device wireless charging, utilizing magnetic resonance realization charging.
Background technology
The technology of mobile terminal is at development, and the density of battery capacity improves constantly, and the charging demand becomes and day by day oversimplifies, and high-speeding has produced the wireless charging technology thus.The wireless charging technology is divided into two stages: short-distance wireless charging and remote-wireless charging.At present, the wireless charging technology is in the short-distance wireless charging stage.
The principle of short-distance wireless charging is directly to realize the transmission of energy with coupling by coil.Wherein two very crucial parameters are exactly coupling area and coupling distance, and these two parameters are directly connected to the efficiency of transmission of wireless charging.At present, only have Japan that corresponding elementary skill and product are being arranged aspect the wireless charging transmission, but because technique is ripe not enough, properties of product are relatively poor, the problem such as often occur that charging is discontinuous or charge volume is little and the charging interval is long, and charger and be recharged equipment and realize that the coverage of wireless charging is very short, generally can only realize in the scope of 1.5 meters, in case exceed this distance range can not realize the effect of wireless charging.
Summary of the invention
Technical problem to be solved in the utility model is the defective that overcomes prior art, a kind of magnetic resonance wireless charging device is provided, this magnetic resonance wireless charging device be intended to support mobile terminal device wireless charging, can provide better wireless charging effect for mobile terminal device, and can bring splendid user's experience effect.
the technical scheme that its technical problem that solves the utility model adopts is: a kind of magnetic resonance wireless charging device, it is characterized in that: comprise the wireless charger of miniaturization and the mobile terminal device of miniaturization, wireless charger is provided with less radio-frequency emission of magnetic field circuit, mobile terminal device is provided with less radio-frequency magnetic field induction receiving circuit, less radio-frequency emission of magnetic field circuit and less radio-frequency magnetic field induction receiving circuit all adopt the electromagnetic wave of frequency of oscillation 10Hz, it is in 2.5 meters that less radio-frequency magnetic field induction receiving circuit receives the electromagnetic scope of less radio-frequency emission of magnetic field circuit.The specific 10Hz electromagnetic wave of this magnetic resonance wireless charging device utilization is applicable to use on the mobile terminal device of miniaturization, and the coverage of its wireless charging extends in 2.5 meters, can realize in the mode of controlled in wireless the conveying of electric energy.This less radio-frequency magnetic field induction receiving circuit adopts identical frequency with less radio-frequency emission of magnetic field circuit, the electromagnetic wave of less radio-frequency magnetic field induction receiving circuit induction wireless radio-frequency (RF) magnetic field radiating circuit also carries out the self-oscillation generation current, and electric current is powered to mobile terminal device or battery is charged.
Further, described less radio-frequency emission of magnetic field circuit includes transmitting coil, and less radio-frequency magnetic field induction receiving circuit includes receiving coil and oscillator coil, and the magnetic field intensity of transmitting coil is greater than the magnetic field intensity of receiving coil.
The principle of this magnetic resonance wireless charging device is to continue to use the prior art of a part, be specially: 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 the rear drive transmitting coil by amplifying circuit, transmitting coil produces alternating magnetic field and to the surrounding emission, forms an alternating magnetic field around transmitting coil; Less radio-frequency magnetic field induction receiving circuit is provided with receiving coil and oscillator coil, and receiving coil is connected to rectification circuit, and the rectification circuit output current offers charging circuit, connects battery by charging circuit.When less radio-frequency magnetic field induction receiving circuit enters the alternating magnetic field effective range of less radio-frequency emission of magnetic field circuit, the receiving coil of less radio-frequency magnetic field induction receiving circuit produces weak current and offers rectification circuit, the faint induced current that the detection sample circuit is sent here rectification circuit detects takes a sample and controls the resonant circuit vibration, and resonant circuit drives oscillator coil and produces resonant field.the oscillator coil of less radio-frequency magnetic field induction receiving circuit forms the 10Hz oscillating magnetic field identical with less radio-frequency emission of magnetic field circuit around receiving coil, two magnetic field resonance mutually in certain distance, mutually resonate and be enhanced in magnetic field, the resonance frequency of the receiving coil of less radio-frequency magnetic field induction receiving circuit is identical with the frequency of oscillation of oscillator coil, the electromotive force that magnetic induction coil produces in two magnetic fields of mutually resonating strengthens, electric current increases, distance of reaction is farther, maximum can reach 2.5 meters, the receiving coil output current offers rectification circuit, the backward electrical equipment of rectification provides operating circuit or by charging circuit, rechargeable battery is charged.
In sum, magnetic resonance wireless charging device of the present utility model wireless charging device compared to existing technology, has following advantage: the specific 10Hz electromagnetic wave of this magnetic resonance wireless charging device utilization, be applicable to use on the mobile terminal device of miniaturization, the coverage of its wireless charging extends in 2.5 meters, can realize in the mode of controlled in wireless the conveying of electric energy; And this wireless charging device support mobile terminal device wireless charging, can provide better wireless charging effect for mobile terminal device, and can bring splendid user's experience effect.
Description of drawings
Fig. 1 is the block diagram of the wireless charger of the utility model embodiment 1;
Fig. 2 is the block diagram of the mobile terminal device of the utility model embodiment 1.
Embodiment
The described a kind of magnetic resonance wireless charging device of the utility model embodiment 1, as shown in Figure 1 and Figure 2, comprise the wireless charger 1 of miniaturization and the mobile terminal device 2 of miniaturization, wireless charger is provided with less radio-frequency emission of magnetic field circuit 3, mobile terminal device is provided with less radio-frequency magnetic field induction receiving circuit 4, less radio-frequency emission of magnetic field circuit and less radio-frequency magnetic field induction receiving circuit all adopt the electromagnetic wave of frequency of oscillation 10Hz, and it is in 2.5 meters that less radio-frequency magnetic field induction receiving circuit receives the electromagnetic scope of less radio-frequency emission of magnetic field circuit.The specific 10Hz electromagnetic wave of this magnetic resonance wireless charging device utilization is applicable to use on the mobile terminal device of miniaturization, and the coverage of its wireless charging extends in 2.5 meters, can realize in the mode of controlled in wireless the conveying of electric energy.This less radio-frequency magnetic field induction receiving circuit adopts identical frequency with less radio-frequency emission of magnetic field circuit, the electromagnetic wave of less radio-frequency magnetic field induction receiving circuit induction wireless radio-frequency (RF) magnetic field radiating circuit also carries out the self-oscillation generation current, and electric current is powered to mobile terminal device or battery is charged.
Further, described less radio-frequency emission of magnetic field circuit includes transmitting coil 5, and less radio-frequency magnetic field induction receiving circuit includes receiving coil 6 and oscillator coil 7, and the magnetic field intensity of transmitting coil is greater than the magnetic field intensity of receiving coil.
The above is only preferred embodiment of the present utility model, is not technology contents of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment does.
Claims (2)
1. magnetic resonance wireless charging device, it is characterized in that: comprise the wireless charger of miniaturization and the mobile terminal device of miniaturization, wireless charger is provided with less radio-frequency emission of magnetic field circuit, mobile terminal device is provided with less radio-frequency magnetic field induction receiving circuit, less radio-frequency emission of magnetic field circuit and less radio-frequency magnetic field induction receiving circuit all adopt the electromagnetic wave of frequency of oscillation 10Hz, and it is in 2.5 meters that less radio-frequency magnetic field induction receiving circuit receives the electromagnetic scope of less radio-frequency emission of magnetic field circuit.
2. a kind of magnetic resonance wireless charging device according to claim 1, it is characterized in that: described less radio-frequency emission of magnetic field circuit includes transmitting coil, less radio-frequency magnetic field induction receiving circuit includes receiving coil and oscillator coil, and the magnetic field intensity of transmitting coil is greater than the magnetic field intensity of receiving coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202566857U CN203278406U (en) | 2013-05-13 | 2013-05-13 | Magnetic resonance wireless charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202566857U CN203278406U (en) | 2013-05-13 | 2013-05-13 | Magnetic resonance wireless charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203278406U true CN203278406U (en) | 2013-11-06 |
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ID=49508733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202566857U Expired - Fee Related CN203278406U (en) | 2013-05-13 | 2013-05-13 | Magnetic resonance wireless charging device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203278406U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868613A (en) * | 2015-05-29 | 2015-08-26 | 复旦大学 | Repetition-rate pulse power device based on magnetic resonance wireless electric energy transmission |
| CN106781734A (en) * | 2016-12-29 | 2017-05-31 | 上海清之泓教育科技有限公司 | For the mobile terminal of foreign language teaching |
| WO2020019160A1 (en) * | 2018-07-24 | 2020-01-30 | 深圳先进技术研究院 | Wireless charging system for magnetic resonance radio-frequency coil |
-
2013
- 2013-05-13 CN CN2013202566857U patent/CN203278406U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868613A (en) * | 2015-05-29 | 2015-08-26 | 复旦大学 | Repetition-rate pulse power device based on magnetic resonance wireless electric energy transmission |
| CN106781734A (en) * | 2016-12-29 | 2017-05-31 | 上海清之泓教育科技有限公司 | For the mobile terminal of foreign language teaching |
| WO2020019160A1 (en) * | 2018-07-24 | 2020-01-30 | 深圳先进技术研究院 | Wireless charging system for magnetic resonance radio-frequency coil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160930 Address after: 201 Guangdong, Pengjiang, Jiangbei District, No. Road, room 40, room 529000 Patentee after: Jiangmen Xianda Computer Technology Co., Ltd. Address before: 529000 Guangdong city of Jiangmen Province Huang Zhuang Road West Plant No. 10 1-209 Patentee before: Jiangmen Wanglian Electronic Commerce Science & Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20200513 |