CN102412635A - Wireless power supply device of mobile equipment - Google Patents
Wireless power supply device of mobile equipment Download PDFInfo
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- CN102412635A CN102412635A CN2011104456880A CN201110445688A CN102412635A CN 102412635 A CN102412635 A CN 102412635A CN 2011104456880 A CN2011104456880 A CN 2011104456880A CN 201110445688 A CN201110445688 A CN 201110445688A CN 102412635 A CN102412635 A CN 102412635A
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- power supply
- resonant circuit
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- mobile device
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Abstract
The invention relates to a wireless power supply device of mobile equipment, belonging to the technical field of wireless power supply. The wireless power supply device comprises an emitting device and a receiving device, wherein the emitting device comprises a high-frequency oscillation power supply and an emission resonant circuit which are sequentially connected with each other; and the receiving device comprises a receiving resonant circuit and a rectification device. A current with a specific frequency is generated by the high-frequency oscillation power supply to excite the emission resonant circuit to carry out self resonance; an alternative current signal of the emission resonant circuit is received by the receiving resonant circuit through the self resonance; and the induced and coupled alternative current signal is converted into direct current by the rectification circuit to supply power to the mobile equipment. In the invention, when the quality factors of the receiving resonant circuit and the emission resonant circuit of the wireless power supply device are higher, the power supply or the charging of the low-power portable mobile equipment within several meters can be realized.
Description
Technical field
The present invention relates to a kind of wireless power supply of mobile device, belong to radio power supply technique field.
Background technology
Now many mobility equipment such as clean robot, underwater operation robot, mine robot, portable mobile apparatus etc.; Two kinds of schemes of many employings are supplied power to it: one; Take transmission lines such as cable to supply power; But this type scheme is difficult for implementing many time, and on equipment, is equipped with the moving range that transmission line has also limited equipment; Two, adopt battery to supply power to it, because battery capacity is limited, mobile device need regularly quit work, and replenishes electric weight, has limited the continuity that equipment uses, visible these two kinds of schemes have all reduced the use flexibility of this kind equipment.Therefore, need provide a kind of novel energy method of supplying to realize the power supply of mobile device, to remedy the deficiency of above supply power mode.
Summary of the invention
Technical problem to be solved by this invention is the deficiency to the above-mentioned background technology, and a kind of wireless power supply of mobile device is provided, and can directly supply power to mobile device.
The present invention adopts following technical scheme for realizing the foregoing invention purpose:
A kind of wireless power supply of mobile device comprises emitter and receiving system, and said emitter comprises the higher-order of oscillation power supply and emission resonant circuit that connects successively, and said receiving system comprises reception resonant circuit and the rectifying device that connects successively; Wherein: said emitter, receiving system carry out electromagnetic energy transfer through the inductance coil coupling in emission resonant circuit, the reception resonant circuit.
In the wireless power supply of said mobile device, higher-order of oscillation power supply adopts Colpitts oscillation circuit to obtain high-frequency current.
In the wireless power supply of said mobile device, the self-resonant frequency scope of emission resonant circuit and reception resonant circuit is between 1MHz～50MHz.
In the wireless power supply of said mobile device, the distance range of emitter and receiving system is 0.1m～3m.
In the wireless power supply of said mobile device, the cored screw pipe that the inductance in emission resonant circuit and the reception resonant circuit adopts copper material to be processed into.
In the wireless power supply of said mobile device, the number of receiving system is n, and n is the positive integer greater than 1.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
(1) emitter and receiving system are operated on the same resonance frequency, and the maximum coupling when realizing power transfer has improved the energy coupling efficiency that transmits and receives between the device greatly;
(2) the emission resonant circuit has higher quality factor with the reception resonant circuit, reduces the proportion of goods damageds in the power transfer process, further improves the efficient of system transmissions;
Description of drawings
Fig. 1 is the structural representation of mobile device wireless power supply.Label declaration among the figure: 1, emitter; 1-1, higher-order of oscillation power supply; 1-2, emission resonant circuit; 1-2-1, transmitting coil; 1-2-2, emission compensating band content; 2, receiving system; 2-1, reception resonant circuit; 2-1-1, receiving coil; 2-1-2, reception building-out capacitor; 2-2, rectifying device; 2-2-1, induction coil; 2-2-2, rectification circuit.
Embodiment
Be elaborated below in conjunction with the technical scheme of accompanying drawing to invention:
With reference to mobile device wireless power supply shown in Figure 1, a kind of wireless power supply of mobile device comprises emitter 1 and receiving system 2.Emitter 1 comprises the higher-order of oscillation power supply 1-1 and emission resonant circuit 1-2 that connects successively.Receiving system 2 comprises reception resonant circuit 2-1 and rectifying device 2-2.Emission resonant circuit 1-2 comprises transmitting coil 1-2-1, the emission building-out capacitor 1-2-2 that is connected in series.Receive resonant circuit 2-1 and comprise receiving coil 2-1-1, the emission building-out capacitor 2-1-2 that is connected in series.Rectifying device 2-2 comprises induction coil 2-2-1 and rectification circuit 2-2-2.
The mobile device wireless power supply course of work is following: power frequency electricity 220VAC sends into higher-order of oscillation power supply 1-1 and converts frequency and emission resonant circuit 1-2 and the identical high-frequency alternating current of reception resonant circuit 2-1 self-resonant frequency after treatment to.The high-frequency alternating current of this frequency is fed emission resonant circuit 1-2, because the emission resonant circuit is operated in resonance condition at this moment, and system has higher quality factor.Can form bigger voltage among the transmitting coil 1-2-1, and external emitted energy.The reception resonant circuit 2-1 of institute is with this high-frequency energy of reception of same resonance frequency, and converts the mode of high-frequency alternating current through induction to high conversion rate and be sent to induction coil 2-2-1.Further sending into rectification circuit 2-2-2 handles and obtains the needed direct current of load.
Higher-order of oscillation power supply 1-1 adopts Colpitts oscillation circuit to obtain the CF electric current.CF has formula (1) to confirm:
In the formula, L
1Be self equivalent inductance value of transmitting coil 1-2-1, C
1Be the capacitance of emission building-out capacitor 1-2-2, the scope of frequency f is between 1MHz-50MHz.
The cored screw pipe that inductance in emission resonant circuit and the reception resonant circuit adopts copper material to be processed into.The distance of emitter and receiving system can be implemented between the 0.1m-3m, and the number of receiving system is at least 1, and the mobile device wireless power supply can be realized supplying power simultaneously to a plurality of mobile devices certainly.
More than to mobile device wireless power supply provided by the present invention; Carried out detailed introduction; Used specific embodiment among this paper principle of the present invention and execution mode are set forth, more than explanation is to be applicable to help to understand method of the present invention and core concept thereof; Simultaneously for those of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change, in sum, this description should not understand limitation of the present invention.
Claims (6)
1. the wireless power supply of a mobile device; Comprise emitter and receiving system; It is characterized in that said emitter comprises the higher-order of oscillation power supply and emission resonant circuit that connects successively, said receiving system comprises reception resonant circuit and the rectifying device that connects successively; Wherein: said emitter, receiving system carry out electromagnetic energy transfer through the inductance coil coupling in emission resonant circuit, the reception resonant circuit.
2. the wireless power supply of mobile device according to claim 1 is characterized in that, said higher-order of oscillation power supply adopts Colpitts oscillation circuit to obtain high-frequency current.
3. the wireless power supply of mobile device according to claim 1 is characterized in that, the self-resonant frequency scope of said emission resonant circuit and reception resonant circuit is between 1MHz ~ 50MHz.
4. the wireless power supply of mobile device according to claim 1 is characterized in that, the distance range of said emitter and receiving system is 0.1m ~ 3m.
5. the wireless power supply of mobile device according to claim 1 is characterized in that, the cored screw pipe that the inductance in said emission resonant circuit and the reception resonant circuit adopts copper material to be processed into.
6. the wireless power supply of mobile device according to claim 1 is characterized in that, the number of said receiving system is n, and n is the positive integer greater than 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104456880A CN102412635A (en) | 2011-12-28 | 2011-12-28 | Wireless power supply device of mobile equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104456880A CN102412635A (en) | 2011-12-28 | 2011-12-28 | Wireless power supply device of mobile equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102412635A true CN102412635A (en) | 2012-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104456880A Withdrawn CN102412635A (en) | 2011-12-28 | 2011-12-28 | Wireless power supply device of mobile equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN102412635A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312052A (en) * | 2013-07-08 | 2013-09-18 | 东南大学 | Antenna device for wireless power supply system |
| CN104218652A (en) * | 2013-09-19 | 2014-12-17 | 郭和友 | Wireless charging power supply OLED soft screen network electronic device |
| CN105471122A (en) * | 2015-12-30 | 2016-04-06 | 东南大学 | Wireless power supply system for straddle type monorail |
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| CN201188555Y (en) * | 2008-03-24 | 2009-01-28 | 昆盈企业股份有限公司 | Magnetoelectric induction converting system for wireless input apparatus |
| CN101557127A (en) * | 2008-04-10 | 2009-10-14 | 朱斯忠 | Wireless supply source |
| CN101860087A (en) * | 2010-05-11 | 2010-10-13 | 浙江大学 | Method and system for improving wireless energy transmission efficiency by using feedback tuning method |
| CN201839101U (en) * | 2010-06-12 | 2011-05-18 | 朱晓敏 | Wireless power supply device |
| JP2011177009A (en) * | 2010-01-26 | 2011-09-08 | Equos Research Co Ltd | Non-contact power transmission system |
| CN102255399A (en) * | 2011-07-12 | 2011-11-23 | 西安电子科技大学 | Wireless energy transmission device based on self-resonant electromagnetic induction coupling |
| CN202384853U (en) * | 2011-12-28 | 2012-08-15 | 东南大学 | Wireless power supply device of mobile equipment |
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2011
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201188555Y (en) * | 2008-03-24 | 2009-01-28 | 昆盈企业股份有限公司 | Magnetoelectric induction converting system for wireless input apparatus |
| CN101557127A (en) * | 2008-04-10 | 2009-10-14 | 朱斯忠 | Wireless supply source |
| JP2011177009A (en) * | 2010-01-26 | 2011-09-08 | Equos Research Co Ltd | Non-contact power transmission system |
| CN101860087A (en) * | 2010-05-11 | 2010-10-13 | 浙江大学 | Method and system for improving wireless energy transmission efficiency by using feedback tuning method |
| CN201839101U (en) * | 2010-06-12 | 2011-05-18 | 朱晓敏 | Wireless power supply device |
| CN102255399A (en) * | 2011-07-12 | 2011-11-23 | 西安电子科技大学 | Wireless energy transmission device based on self-resonant electromagnetic induction coupling |
| CN202384853U (en) * | 2011-12-28 | 2012-08-15 | 东南大学 | Wireless power supply device of mobile equipment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312052A (en) * | 2013-07-08 | 2013-09-18 | 东南大学 | Antenna device for wireless power supply system |
| CN103312052B (en) * | 2013-07-08 | 2015-08-05 | 东南大学 | A kind of antenna assembly for wireless power supply system |
| CN104218652A (en) * | 2013-09-19 | 2014-12-17 | 郭和友 | Wireless charging power supply OLED soft screen network electronic device |
| CN105471122A (en) * | 2015-12-30 | 2016-04-06 | 东南大学 | Wireless power supply system for straddle type monorail |
| CN105471122B (en) * | 2015-12-30 | 2018-08-10 | 东南大学 | A kind of single-track beam support wireless power supply system |
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Application publication date: 20120411 |