CN105262241A - Transmitting coil suitable for electric automobile wireless power supply system - Google Patents
Transmitting coil suitable for electric automobile wireless power supply system Download PDFInfo
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- CN105262241A CN105262241A CN201510636344.6A CN201510636344A CN105262241A CN 105262241 A CN105262241 A CN 105262241A CN 201510636344 A CN201510636344 A CN 201510636344A CN 105262241 A CN105262241 A CN 105262241A
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- spiral planar
- transmitting coil
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- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention discloses a transmitting coil suitable for an electric automobile wireless power supply system. The transmitting coil comprises spiral plane coils which are sequentially arranged from inside to outside and have a shared center, an electromagnetic shielding radiation layer is covered on the spiral plane coils, adjacent spiral plane coils are acquired by winding insulation leads in opposite directions; first ends of the spiral plane coils are connected, and tail ends of the spiral plane coils are connected. According to the transmitting coil, the spiral plane coils are connected in a reverse parallel mode, the spiral plane coils in operation at adjacent layers have currents in opposite directions, the transmitting electromagnetic field is improved, the electromagnetic shielding radiation layer can be used for restraining single-direction transmission of the magnetic field generated by the transmitting coil, in combination with the spiral plane coils in the reverse parallel mode, the transmission magnetic field of the transmitting coil can be improved, and thereby transmission distance and transmission efficiency are improved.
Description
Technical field
The invention belongs to wireless power supply system transmitting coil design field, particularly relate to a kind of transmitting coil being applicable to electric automobile electric power system.
Background technology
Electric automobile wireless power technology can be divided into two kinds: the first is induced magnetism manifold type wireless power technology, it utilizes electromagnetic induction principle to carry out energy supply by magnetic coupling mode to electric automobile, Energy Efficient Transmission is apart from short, electric automobile need be parked in correct position to aim at charge coil and just can carry out Energy Transfer, be applicable to the application scenarios such as the charging station at similar conventional gasoline station.The second is resonance magnetic coupling type wireless power technology, it carrys out transmitting energy by inductance on resonator and distributed capacitor generation resonance, to carry out energy supply to electric automobile, belong to the Energy Transfer mode of moderate distance, vehicle-mounted resonance coil and power supply resonance coil is not needed to aim at completely, be suitable for the charge mode of development of new, obtain very large concern in electric automobile wireless charging technical field.At present, the efficiency of transmission of electric automobile wireless power supply system needs to be improved further.
Summary of the invention
The object of this invention is to provide a kind of transmitting coil improving energy transmission efficiency, be applicable to electric automobile electric power system.
The present invention adopts following technical scheme:
Be applicable to a transmitting coil for electric automobile electric power system, be characterized in:
From inside to outside arrange the concentrical spiral planar coil of some layers in turn, spiral planar coil covers electromagnetic shielding radiating layer; The spiral planar coil of adjacent layer adopts insulated conductor coiling acquisition round about respectively; The head end of all spiral planar coils is connected, and the tail end of all spiral planar coils is connected.
As preferably, spiral planar coil is runway shape spiral planar coil.
Above-mentioned electromagnetic shielding radiating layer material is that composite material of iron oxide, steel, copper, aluminium or electrically conductive polyaniline.
Compared to the prior art, tool of the present invention has the following advantages and beneficial effect:
The present invention by the spiral planar coil reverse parallel connection of adjacent layer, during work adjacent layer spiral planar coil in the sense of current contrary, make the magnetic direction between the spiral planar coil of adjacent layer identical, thus transmitting electromagnetic field can be strengthened; Electromagnetic shielding radiating layer can be used to the magnetic field one-way transmission that constraint transmitting coil produces, and the spiral planar coil acting in conjunction of reverse parallel connection, can strengthen the transmission magnetic field of transmitting coil, thus improve transmission range and efficiency of transmission.
Accompanying drawing explanation
Fig. 1 is a kind of concrete structure schematic diagram of transmitting coil of the present invention;
Fig. 2 is a kind of concrete structure schematic diagram of the receiving coil of transmitting coil of the present invention coupling.
In figure, the outer spiral planar coil of 10-, 11-internal layer spiral planar coil, 12-electromagnetic shielding radiating layer, 13-coil unit.
Embodiment
Below by embodiment also by reference to the accompanying drawings, transmitting coil of the present invention is described further.
The present invention is a kind of one-way radiation formula electromagnetic field emissions coil, and this transmitting coil is from inside to outside furnished with the concentrical spiral planar coil of some layers in turn, spiral planar coil covers electromagnetic shielding radiating layer; The spiral planar coil of adjacent layer adopt respectively insulated conductor round about coiling obtain, i.e. one of the two spiral planar coils from inside to outside coiling along clockwise direction of adjacent layer, another spiral planar coil is from inside to outside coiling in the counterclockwise direction then; The head end of all spiral planar coils is connected, and the tail end of all spiral planar coils is connected.
Fig. 1 is a kind of concrete structure schematic diagram of transmitting coil, from inside to outside arrange internal layer spiral planar coil (11) and outer spiral planar coil (10) in turn, internal layer spiral planar coil (11) and outer spiral planar coil (10) concentrically, outer spiral planar coil (10) and internal layer spiral planar coil (11) also cover electromagnetic shielding radiating layer (12).Outer spiral planar coil (10) and internal layer spiral planar coil (11) are all the runway shape spiral planar coils adopting insulated conductor from inside to outside coiling to obtain, but both coiling directions are contrary, outer spiral planar coil (10) is insulated conductor from inside to outside coiling acquisition clockwise, and internal layer spiral planar coil (11) is insulated conductor from inside to outside coiling acquisition counterclockwise.Outer spiral planar coil (10) is connected with the head end of internal layer spiral planar coil (11), also outer spiral planar coil (10) is connected with the tail end of internal layer spiral planar coil (11) simultaneously.
The initiating terminal of insulated conductor when above-mentioned head end and coiling, the destination terminal of insulated conductor when tail end and coiling, in Fig. 1, terminal A and A ' are respectively the head end of outer spiral planar coil (10) and internal layer spiral planar coil (11), and terminal B and B ' are respectively the tail end of outer spiral planar coil (10) and internal layer spiral planar coil (11).
Due to outer spiral planar coil (10) and internal layer spiral planar coil (11) reverse parallel connection, during work, outer spiral planar coil (10) is contrary with internal layer spiral planar coil (11) the interior sense of current, make outer spiral planar coil (10) identical with the magnetic direction between internal layer spiral planar coil (11), electromagnetic field intensity superposes, thus can strengthen transmitting electromagnetic field.Electromagnetic shielding radiating layer (12) can be used to the magnetic field one-way transmission that constraint transmitting coil produces, and the planar coil acting in conjunction of two-layer reverse parallel connection, can strengthen transmission magnetic field, improve efficiency of transmission.
In embodiment, the two ends semicircular in shape of outer spiral planar coil (10) and internal layer spiral planar coil (11), mid portion is rectangular.Outer spiral planar coil (10) is the insulated copper wire from inside to outside coiling acquisition clockwise of 4mm by copper core radius, interior semicircle and the outer semicircle radius of its two ends semi-circular portions are respectively 1000mm, 1076mm, and the long 2000mm of intermediate rectangular part, radial pitch are 20mm.Outer spiral planar coil (11) is the insulated copper wire from inside to outside coiling acquisition counterclockwise of 4mm by copper core radius, interior semicircle and the outer semicircle radius of its two ends semi-circular portions are respectively 500mm, 576mm, the long 2000mm of intermediate rectangular part, radial pitch is 20mm.
Certainly, above are only a kind of embodiment of transmitting coil of the present invention, the present invention is not limited to this, and the number of plies of transmitting coil and the number of turn of each layer line circle, size, shape and material all can adjust according to the actual requirements.
Fig. 2 is the receiving coil of transmitting coil of the present invention coupling, this receiving coil is the array coil be made up of some coil units (13), coil unit is regular hexagon spiral planar coil, and array coil is made up of around 1 coil unit (13) 6 coil units (13).In this embodiment, each coil unit is by the copper cash from inside to outside coiling acquisition clockwise of radius 2mm, and its inner edge axis is apart from its center 400mm, and outside it, axis is apart from its center 430mm, and radial pitch is 10mm.The shape of coil unit, size, the number of turn, material and arrangement are not limited to above-mentioned, can adjust according to actual conditions.Such as, coil unit can be triangle spiral planar coil, round screw thread shape planar coil, square spiral shape planar coil etc., and coil unit also can be arranged in triangle, circle, square etc.
For realizing efficient radio energy-transmitting, should ensure that the resonance frequency of transmitting coil and receiving coil is consistent.Namely adjust the resonance frequency of transmitting coil and receiving coil by the mode of serial or parallel connection electric capacity, make both resonance frequencys consistent.For effectively reducing electromagnetic radiation, the resonance frequency after transmitting coil and receiving coil adjustment can be made in the present invention to reach kHz rank, and kHz order frequencies is lower frequency rank, effectively can reduce electromagnetic radiation.
Claims (3)
1. be applicable to the transmitting coil of electric automobile electric power system, it is characterized in that:
From inside to outside arrange the concentrical spiral planar coil of some layers in turn, spiral planar coil covers electromagnetic shielding radiating layer; The spiral planar coil of adjacent layer adopts insulated conductor coiling acquisition round about respectively; The head end of all spiral planar coils is connected, and the tail end of all spiral planar coils is connected.
2. be applicable to the transmitting coil of electric automobile electric power system as claimed in claim 1, it is characterized in that:
Described spiral planar coil is runway shape spiral planar coil.
3. be applicable to the transmitting coil of electric automobile electric power system as claimed in claim 1, it is characterized in that:
Described electromagnetic shielding radiating layer material is that composite material of iron oxide, steel, copper, aluminium or electrically conductive polyaniline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510636344.6A CN105262241A (en) | 2015-09-30 | 2015-09-30 | Transmitting coil suitable for electric automobile wireless power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510636344.6A CN105262241A (en) | 2015-09-30 | 2015-09-30 | Transmitting coil suitable for electric automobile wireless power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105262241A true CN105262241A (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510636344.6A Pending CN105262241A (en) | 2015-09-30 | 2015-09-30 | Transmitting coil suitable for electric automobile wireless power supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112515646A (en) * | 2020-11-20 | 2021-03-19 | 浙江清华柔性电子技术研究院 | Pressure sensor and preparation method and use method thereof |
Citations (5)
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| CN102753091A (en) * | 2010-02-08 | 2012-10-24 | 皇家飞利浦电子股份有限公司 | Apparatus and method for influencing and/or detecting magnetic particles in a field of view having an array of single-sided transmit coil sets |
| CN103107008A (en) * | 2011-11-10 | 2013-05-15 | 翰林Postech株式会社 | Power transmitting coil and wireless power transmitting apparatus |
| EP2775564A1 (en) * | 2013-03-06 | 2014-09-10 | NuCurrent, Inc. | Multi-layer-multi-turn structure for high efficiency wireless communication |
| CN203839170U (en) * | 2014-02-27 | 2014-09-17 | 杭州电子科技大学 | Wireless charging coil enabling charging equipment to be capable of being placed at will |
| CN104813420A (en) * | 2012-11-27 | 2015-07-29 | 高通股份有限公司 | Wireless charging systems and methods |
-
2015
- 2015-09-30 CN CN201510636344.6A patent/CN105262241A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102753091A (en) * | 2010-02-08 | 2012-10-24 | 皇家飞利浦电子股份有限公司 | Apparatus and method for influencing and/or detecting magnetic particles in a field of view having an array of single-sided transmit coil sets |
| CN103107008A (en) * | 2011-11-10 | 2013-05-15 | 翰林Postech株式会社 | Power transmitting coil and wireless power transmitting apparatus |
| CN104813420A (en) * | 2012-11-27 | 2015-07-29 | 高通股份有限公司 | Wireless charging systems and methods |
| EP2775564A1 (en) * | 2013-03-06 | 2014-09-10 | NuCurrent, Inc. | Multi-layer-multi-turn structure for high efficiency wireless communication |
| CN203839170U (en) * | 2014-02-27 | 2014-09-17 | 杭州电子科技大学 | Wireless charging coil enabling charging equipment to be capable of being placed at will |
Non-Patent Citations (1)
| Title |
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| 胡金锁: "《电磁装甲技术原理及其有限元分析》", 30 November 2005, 北京：兵器工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112515646A (en) * | 2020-11-20 | 2021-03-19 | 浙江清华柔性电子技术研究院 | Pressure sensor and preparation method and use method thereof |
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Application publication date: 20160120 |