CN103560600A - Energy receiving coil for wireless power supply locomotive - Google Patents
Energy receiving coil for wireless power supply locomotive Download PDFInfo
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- CN103560600A CN103560600A CN201310589739.6A CN201310589739A CN103560600A CN 103560600 A CN103560600 A CN 103560600A CN 201310589739 A CN201310589739 A CN 201310589739A CN 103560600 A CN103560600 A CN 103560600A
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Abstract
The invention relates to an energy receiving coil for a wireless power supply locomotive. The energy receiving coil for the wireless power supply locomotive mainly comprises a resonance type coupling receiving coil (2) and an inductive coupling receiving coil (3). According to the energy receiving coil for the wireless power supply locomotive, due to the fact that the resonance type wireless energy transmission mode and the induction type wireless energy transmission mode are combined, the structure of an existing single wireless energy transmission coil is optimized; due to the fact that the advantages of the energy transmission distance of the resonance type wireless energy transmission mode and the advantages of the energy transmission distance of the induction type wireless energy transmission mode are combined, efficiency of energy transmission is improved, and the distance of energy transmission is increased . According to the design, construction is convenient, the energy receiving coil for the wireless power supply locomotive can be obtained through improvement on the basis of the structure of an existing wireless power supply coil, the structure is stable and reliable, safety is high, and the energy receiving coil for the wireless power supply locomotive has wide market prospect.
Description
Technical field
Wireless power transmission technology is one of most active hot research direction in current electrical engineering field, it integrates basic research and application study, be that of exploring of the outer academia of Present Domestic and industrial quarters is multidisciplinary, new research field and the advanced subject of strong intersection, contain many technical fields such as electromagnetic field, power electronic technology, electric power system, control technology, physics, materialogy, information technology.Adopt wireless power mode can effectively overcome all kinds of defects that electric wire connected mode exists, realize freely powering of electronic apparatus, there is important application expection and vast potential for future development.
A kind of energy receiving coil for wireless power locomotive of the present invention relates to a kind of easy construction, and the radio energy receiving coil that system is convenient, stable, safe and reliable, for wireless power coil provides technology model.Resonance manifold type wireless power transmission is combined with traditional induction type wireless power transmission, improved the receiving efficiency of existing wireless power technology, and market prospects are wide.
Background technology
Wireless power transmission technology can be divided into three kinds: the first is inductive coupling type electric energy transmission, and it utilizes loosely coupled transformer principle to pass energy, is applicable to small-power, short-range application scenario.The second is electromagnetic coupled resonant mode delivery of electrical energy, is applicable to the Energy Transfer of moderate distance by inductance on the resonator of high quality factor and distributed capacitor generation resonance transmitting energy.The third is electromagnetic radiation formula delivery of electrical energy, and in this technology, electric energy is converted into microwave form, and transmission range exceedance km, can realize the teletransmission of electric energy.Wherein electromagnetic coupled harmonic technology utilizes non-radiative electromagnetic field near-field region to complete delivery of electrical energy, than induction biography energy, has had very large expansion in transmission range on the one hand; Compare on the other hand electromagnetic radiation formula and pass energy, near-field region energy has radiationless feature, and this technology has good fail safe, therefore obtains at present very large concern and research.
Summary of the invention
Technical problem to be solved by this invention is, a kind of energy receiving coil for wireless power locomotive has been proposed, expanded the receive mode of wireless power transmission, resonance manifold type wireless power transmission is combined with traditional induction type wireless power transmission, wireless power transmission better effects if than under traditional single-mode, has proposed concrete tangible technology model.
The technical solution adopted in the present invention is: a kind of energy receiving coil for wireless power locomotive, is provided with electromagnetic field emissions circuit (1), for launching the alternating electromagnetic field of front stage circuits input; Resonant mode coupling receiver coil (2), receives by near field resonance principle the alternating magnetic field that electromagnetic field emissions circuit (1) is launched; Induction coupling receiver coil (3), receives by way of electromagnetic induction the alternating magnetic field that electromagnetic field emissions circuit (1) is launched.
Described electromagnetic field emissions circuit (1) is comprised of the metallic conductor of additional insulating barrier, and its resonance frequency and supply frequency are consistent, to guarantee lower reflection coefficient, and the alternating electromagnetic field producing for launching copped wave power oscillating circuit.
The coil that described resonant mode coupling receiver coil (2) is turned to by multiturn metallic conductor forms, receiving coil has just been considered the frequency of power supply when making, receiving coil and the supply frequency produced are consistent, to guarantee the receiving coil maintenance resonance condition that is in operation, in the mode being coupled by resonance, realize the efficient transmission of energy.
The coil that described induction coupling receiver coil (3) is turned to by multiturn metallic conductor forms, mode with induction coupling receives the alternating electromagnetic field in space, on the basis of resonant mode coupling receiver coil (2) resonance coupling, increase the efficiency that coil system receives, reduce space leakage field.
A kind of energy receiving coil for wireless power locomotive of the present invention, it is the receiving system that adopts resonant mode coupling receiver coil (2) and induction coupling receiver coil (3) to form, resonance manifold type wireless power transmission is combined with traditional induction type wireless power transmission, wireless power transmission better effects if than under traditional single-mode, has proposed concrete tangible technology model.
Accompanying drawing explanation
Fig. 1 is the allomeric function block diagram of wireless power supply system;
Fig. 2 is wireless power structural representation.
Wherein:
1: electromagnetic field emissions circuit 2: resonant mode coupling receiver coil
3: induction coupling receiver coil 4: Shunt compensation capacitor
5: receiving coil magnetic core
Embodiment
Below in conjunction with embodiment and accompanying drawing, a kind of energy receiving coil for wireless power locomotive of the present invention is made and being explained.
As shown in Figure 1, electromagnetic field emissions circuit (1), connect prime power driving circuit, the alternating electromagnetic field producing for launching copped wave power oscillating circuit, this circuit was measured natural resonance frequency before using after setting up, and mate with the centre frequency of the power of input by shunt capacitance, transmitting circuit (1) resonance frequency after coupling is consistent with the centre frequency of added power, to guarantee lower reflection coefficient, in figure, direction shown in arrow is the flow direction of a certain moment electric current in conductor, such connected mode can make the magnetic direction between adjacent two conductors identical, magnetic field intensity strengthens, resonant mode coupling receiver coil (2), metallic conductor by additional insulating barrier forms, receive the alternating magnetic field that electromagnetic field emissions circuit (1) is launched, this coil mates with the own resonance frequency of electromagnetic field emissions circuit (1) before use, matching way is for comparing according to the own resonance frequency of resonant mode coupling receiver coil (2) and the frequency of transmitting circuit (1), pass through shunt capacitance, the own resonance frequency of coil and the centre frequency of institute's transmitting power are consistent, to realize the resonant mode power supply of system, in addition, the inside of resonant mode coupling receiver coil (2) is also provided with an induction coupling receiver coil (3), metallic conductor by additional insulating barrier forms, in order to receive the leakage field existing in space, to improve the received power of coil, make to export to the increase of output power of load, to drive high power load, resonant mode coupling receiver coil (2) and induction coupling receiver coil (3) are connected in series, and access late-class circuit, is load supplying.
As shown in Figure 2, described resonant mode coupling receiver coil (2) and induction coupling receiver coil (3) be positioned at electromagnetic field emissions circuit (1) under, resonant mode coupling receiver coil (2) and induction coupling receiver coil (3) are comprised of the metallic conductor of additional insulating barrier, and by Shunt compensation capacitor (4), resonant mode coupling receiver coil (2) resonance frequency is matched to power supply and is equated, resonant mode coupling receiver coil (2) will obtain power by the coupling of near field resonance from electromagnetic field emissions circuit (1), respond to coupling receiver coil (3) simultaneously and also by the mode of electromagnetic induction, from transmitting circuit (1), obtain power, resonant mode coupling receiver coil (2) is connected with induction coupling receiver coil (3), two coil collaborative works, the wireless power mode of two kinds of principles is combined, met closely with moderate distance under the effect of wireless power transmission, in this example the copper wire winding of resonant mode coupling receiver coil (2) actionradius 2mm the solenoid coil of 16 circles, the minor radius 50mm of solenoid coil, axial pitch 8mm, the copper wire winding of induction coupling receiver coil (3) actionradius 2mm 8 circles, the square involute circle of distance between centers of tracks 8mm, inside radius 240mm, outer radius 336mm, the center superposition of resonant mode coupling receiver coil (2) and induction coupling receiver coil (3), resonant mode coupling receiver coil (2) is arranged on the center of induction coupling receiver coil (3), two coils are positioned in same level, magnetic core (5) is equipped with in the below of two coils, in this example, selecting the ferrite of trade mark PC44 to fire forms, magnetic core is square, length of side 360mm, thickness 5mm, core center overlaps with two hub of a spools, coil the selection of material, model and the number of turn can be adjusted as requested.
Claims (5)
1. the energy receiving coil for wireless power locomotive, it is characterized in that being provided with resonant mode coupling receiver coil (2) and induction coupling receiver coil (3), in conjunction with resonance type wireless pass can with the efficiency of induction type radio energy-transmitting in different distance received energy, designed a kind of resonance type wireless pass can with the energy receiving coil of induction type radio energy-transmitting collaborative work.
2. a kind of energy receiving coil for wireless power locomotive according to claim 1, be further characterized in that, described resonant mode coupling receiver coil (2) is made by the conductor of the identical tape insulation of wire diameter with induction coupling receiver coil (3), and resonant mode coupling receiver coil (2) inside radius is greater than the outer radius of induction coupling receiver coil (3).
3. a kind of energy receiving coil for wireless power locomotive according to claim 1, is further characterized in that, described resonant mode coupling receiver coil (2) and induction coupling receiver coil (3) center superposition, and two coils are positioned at same plane.
4. a kind of energy receiving coil for wireless power locomotive according to claim 1, is further characterized in that, described resonant mode coupling receiver coil (2) and induction coupling receiver coil (3) are connected in series, access late-class circuit.
5. a kind of energy receiving coil for wireless power locomotive according to claim 1, be further characterized in that, it is upper that described resonant mode coupling receiver coil (2) and induction coupling receiver coil (3) are arranged on receiving coil magnetic core (5), and the length of side of magnetic core is greater than the external diameter of resonant mode coupling receiver coil (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310589739.6A CN103560600A (en) | 2013-11-18 | 2013-11-18 | Energy receiving coil for wireless power supply locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310589739.6A CN103560600A (en) | 2013-11-18 | 2013-11-18 | Energy receiving coil for wireless power supply locomotive |
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| Publication Number | Publication Date |
|---|---|
| CN103560600A true CN103560600A (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310589739.6A Pending CN103560600A (en) | 2013-11-18 | 2013-11-18 | Energy receiving coil for wireless power supply locomotive |
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| CN (1) | CN103560600A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107710554A (en) * | 2015-06-16 | 2018-02-16 | 苹果公司 | Wireless charging power station |
| CN116154982A (en) * | 2023-04-23 | 2023-05-23 | 煤炭科学技术研究院有限公司 | Coil component |
-
2013
- 2013-11-18 CN CN201310589739.6A patent/CN103560600A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107710554A (en) * | 2015-06-16 | 2018-02-16 | 苹果公司 | Wireless charging power station |
| CN116154982A (en) * | 2023-04-23 | 2023-05-23 | 煤炭科学技术研究院有限公司 | Coil component |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140205 |