CN104347257A - Hollow magnetic core device for wireless charging and wireless power supply - Google Patents
Hollow magnetic core device for wireless charging and wireless power supply Download PDFInfo
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- CN104347257A CN104347257A CN201410578119.7A CN201410578119A CN104347257A CN 104347257 A CN104347257 A CN 104347257A CN 201410578119 A CN201410578119 A CN 201410578119A CN 104347257 A CN104347257 A CN 104347257A
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- magnetic core
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- wireless power
- wireless charging
- hollow magnetic
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Abstract
The invention discloses a hollow magnetic core device for wireless charging and wireless power supply. The hollow magnetic core device comprises an excitation device for emitting electromagnetic energy and a receiving device for receiving the electromagnetic energy, wherein the excitation device comprises a flat magnetic core on which a first coil is wound; the receiving device comprises a square hollow magnetic core on which a second coil is wound; a magnetic core plane parallel resonant electromagnetic coupling mode is adopted for the flat magnetic core and the square hollow magnetic core. According to the device, the magnetic core design is adopted for both the excitation device and the receiving device, so that the coupling efficiency of the excitation device and the receiving device is improved, the wireless charging and wireless power supply efficiency are further greatly improved, and the whole device is smaller in size; a circuit of a wirelessly-powered or wirelessly-charged electronic device can be totally or partially placed in the square hollow magnetic core, so that the interference of an electromagnetic field emitted by the excitation device or other electromagnetic fields is avoided.
Description
Technical field
The present invention relates to solenoid field, particularly relate to a kind of hollow core device for wireless charging and wireless power.
Background technology
In order to easy to use, in prior art, increasing electronic installation is configured with the mode of wireless power or wireless charging.But the technology of existing wireless power or wireless charging needs excitation coil and receiving coil aligned position and direction, otherwise will significantly affect the efficiency of wireless power or wireless charging, sometimes can not work even at all.
During practical application, in many application scenarios by excitation coil and receiving coil aligned position and direction not a duck soup, such as: the electronic installation be imbedded in human body is just difficult to meet this requirement.
Chinese invention patent application CN103070699A, disclose a kind of microminiature intestinal robot intelligent wireless charger, comprise: X-ray machine is responsible for gathering the image of robot, single-chip microcomputer is transferred to after image processing device processes, single-chip microcomputer is used for X-coordinate and the Y-coordinate of positioning robot position and robot, and operate two-dimentional stepping slide unit by the stepping motor of control X and Y both direction, drive the excitation coil of transmitting terminal, the receiving coil of itself and robot is made to keep certain coupling area, as seen the complexity of its method and the trouble of use.
Summary of the invention
The invention provides a kind of hollow core device for wireless charging and wireless power, the invention solves excitation coil and receiving coil needs the problem such as aligned position and direction, improve the efficiency of wireless charging and wireless power, described below:
For the hollow core device in wireless charging and wireless power, comprising: the exciting bank launching electromagnetic energy, and the receiving system receiving electromagnetic energy,
Described exciting bank comprises: flat magnetic core, and described flat magnetic core is wound with the first coil;
Described receiving system comprises: square hollow magnetic core, and described square hollow magnetic core is wound with the second coil;
The resonant electromagnetic coupled modes that described flat magnetic core and described square hollow magnetic core adopt core plane to be parallel to each other.
Described second coil comprises: first group of coil and second group of coil.Described first group of coil vertically or horizontal direction be wrapped on described square hollow magnetic core successively; Described second group of coil in the horizontal direction or vertical direction be wrapped in successively on described square hollow magnetic core.
Further, described square hollow magnetic core is inner for placing the electronic device circuit of wireless power or wireless charging.
The beneficial effect of technical scheme provided by the invention is: the exciting bank in this device and receiving system all adopt Magnetic Core Design, improve coupling efficiency each other, and because receiving system adopts square hollow magnetic core, no matter make the relative position between exciting bank with receiving system how can realize being coupled expeditiously, and then increased substantially the efficiency of wireless charging and wireless power, and the small volume of whole device; And the inside of square hollow magnetic core can be placed on by whole circuit of the electronic installation of wireless power or wireless charging or partial circuit, avoid the interference of electromagnetic field or other electromagnetic fields emitted by exciting bank.
Accompanying drawing explanation
Fig. 1 is the structural representation of exciting bank;
Fig. 2 is the structural representation of receiving system;
Fig. 3 is a kind of constitutional diagram for the hollow core device in wireless charging and wireless power.
In accompanying drawing, the list of parts representated by each label is as follows:
1: exciting bank; 2: receiving system;
11: flat magnetic core; 12: the first coils;
21: square hollow magnetic core; 22: the second coils;
L1: the first group of coil; L2: the second group of coil.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below embodiment of the present invention is described further in detail.
In order to solve excitation coil and receiving coil needs the problem such as aligned position and direction, improve the efficiency of wireless charging and wireless power, embodiments provide a kind of for the hollow core device in wireless charging and wireless power, see Fig. 1 and Fig. 2, comprise: exciting bank 1, exciting bank 1 comprises: flat magnetic core 11 and the first coil 12, first coil 12 are wrapped on flat magnetic core 11.This hollow core device also comprises: the receiving system 2 coordinated with exciting bank 1, and receiving system 2 comprises: square hollow magnetic core 21 and the second coil 22.The resonant electromagnetic coupled modes that flat magnetic core 11 and square hollow magnetic core 21 adopt two core plane to be parallel to each other.
See Fig. 2 and Fig. 3, the second coil 22 comprises: first group of coil L1 and second group of coil L2, and first group of coil L1 is vertically wrapped on square hollow magnetic core 21 successively, and second group of coil L2 is wrapped on square hollow magnetic core 21 in the horizontal direction successively.
The present invention is described for Fig. 2, and during specific implementation, can also be wrapped in successively in the horizontal direction on square hollow magnetic core 21 by first group of coil L1, second group of coil L2 is vertically wrapped on square hollow magnetic core 21 successively.The present invention does not limit this.
Due to square hollow magnetic core 21 can make the magnetic field in any direction in two dimensional surface can efficient reception, as long as thus receiving system 2 is within the coverage of exciting bank 1, no matter how the relative position between exciting bank 1 with receiving system 2 can realize be coupled expeditiously, and because exciting bank 1 and receiving system 2 all have magnetic core, therefore coupling efficiency each other can be accomplished the highest, increase substantially the efficiency of wireless charging and wireless power; Further, the magnetic core due to receiving system 2 is square hollow magnetic core, and the volume of whole device thus can't be caused to increase due to magnetic core.
During specific implementation, the embodiment of the present invention does not limit the concrete winding number of turns of the first coil 12, second coil 22, winding direction, only need meet above-mentioned condition.
The inside of square hollow magnetic core 21 can be placed on by whole circuit of the electronic installation of wireless power or wireless charging or partial circuit; while receiving system 2 and square hollow magnetic core 21 thereof obtain maximum magnetic flux cross section; the volume of whole device can also be reduced to greatest extent, and the circuit being positioned over square hollow magnetic core 21 inside can be protected to avoid the interference of electromagnetic field or other electromagnetic fields emitted by exciting bank 1.
The embodiment of the present invention is to the model of each device except doing specified otherwise, and the model of other devices does not limit, as long as can complete the device of above-mentioned functions.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. for the hollow core device in wireless charging and wireless power, comprising: the exciting bank launching electromagnetic energy, and the receiving system receiving electromagnetic energy, it is characterized in that,
Described exciting bank comprises: flat magnetic core, and described flat magnetic core is wound with the first coil;
Described receiving system comprises: square hollow magnetic core, and described square hollow magnetic core is wound with the second coil;
The resonant electromagnetic coupled modes that described flat magnetic core and described square hollow magnetic core adopt core plane to be parallel to each other.
2. according to claim 1ly a kind ofly to it is characterized in that for the hollow core device in wireless charging and wireless power, described second coil comprises: first group of coil and second group of coil.
3. according to claim 1 a kind of for the hollow core device in wireless charging and wireless power, its feature
Be, described first group of coil vertically or horizontal direction be wrapped on described square hollow magnetic core successively;
Described second group of coil in the horizontal direction or vertical direction be wrapped in successively on described square hollow magnetic core.
4. according to claim 1ly a kind ofly to it is characterized in that for the hollow core device in wireless charging and wireless power, described square hollow magnetic core is inner for placing the electronic device circuit of wireless power or wireless charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410578119.7A CN104347257A (en) | 2014-10-24 | 2014-10-24 | Hollow magnetic core device for wireless charging and wireless power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410578119.7A CN104347257A (en) | 2014-10-24 | 2014-10-24 | Hollow magnetic core device for wireless charging and wireless power supply |
Publications (1)
| Publication Number | Publication Date |
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| CN104347257A true CN104347257A (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410578119.7A Pending CN104347257A (en) | 2014-10-24 | 2014-10-24 | Hollow magnetic core device for wireless charging and wireless power supply |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106961162A (en) * | 2017-05-16 | 2017-07-18 | 电子科技大学中山学院 | Wireless power transmission device with large alignment space |
| CN107170570A (en) * | 2017-04-11 | 2017-09-15 | 中国矿业大学 | A kind of novel radio electric energy transmission flux coupled mechanism |
| CN108281258A (en) * | 2018-01-16 | 2018-07-13 | 哈尔滨工业大学 | Asymmetric magnetic coupling arrangement based on centered magnetic field |
| EP3506326A3 (en) * | 2017-12-28 | 2019-10-02 | Thales | Inductive filter device with toroidal magnetic core |
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| CN103229383A (en) * | 2010-11-16 | 2013-07-31 | 鲍尔拜普罗克西有限公司 | A wirelessly rechargeable battery and power transmitter |
| CN103236345A (en) * | 2013-05-07 | 2013-08-07 | 上海交通大学 | Wireless-powered receiving coil with direction adaptability |
| CN103325555A (en) * | 2013-07-16 | 2013-09-25 | 上海交通大学 | Wireless power supplied receiving coil |
| CN204204612U (en) * | 2014-10-24 | 2015-03-11 | 天津榕丰科技有限公司 | A kind of hollow core device for wireless charging and wireless power |
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| CN101714768A (en) * | 2002-05-13 | 2010-05-26 | 捷通国际有限公司 | Contact-less power transfer device and method |
| CN101179979A (en) * | 2005-05-26 | 2008-05-14 | 奥林巴斯医疗株式会社 | Encapsulated medical device |
| CN103229383A (en) * | 2010-11-16 | 2013-07-31 | 鲍尔拜普罗克西有限公司 | A wirelessly rechargeable battery and power transmitter |
| CN103236345A (en) * | 2013-05-07 | 2013-08-07 | 上海交通大学 | Wireless-powered receiving coil with direction adaptability |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170570A (en) * | 2017-04-11 | 2017-09-15 | 中国矿业大学 | A kind of novel radio electric energy transmission flux coupled mechanism |
| CN107170570B (en) * | 2017-04-11 | 2020-02-14 | 中国矿业大学 | Wireless power transmission magnetic circuit coupling mechanism |
| CN106961162A (en) * | 2017-05-16 | 2017-07-18 | 电子科技大学中山学院 | Wireless power transmission device with large alignment space |
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| EP3506326A3 (en) * | 2017-12-28 | 2019-10-02 | Thales | Inductive filter device with toroidal magnetic core |
| US11562843B2 (en) | 2017-12-28 | 2023-01-24 | Thales | Inductive filtering device with toric magnetic core |
| CN108281258A (en) * | 2018-01-16 | 2018-07-13 | 哈尔滨工业大学 | Asymmetric magnetic coupling arrangement based on centered magnetic field |
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Application publication date: 20150211 |