CN205647045U - Magnetic resonance wireless power transmission antenna , emitter , receiving arrangement and system - Google Patents
Magnetic resonance wireless power transmission antenna , emitter , receiving arrangement and system Download PDFInfo
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- CN205647045U CN205647045U CN201620324036.XU CN201620324036U CN205647045U CN 205647045 U CN205647045 U CN 205647045U CN 201620324036 U CN201620324036 U CN 201620324036U CN 205647045 U CN205647045 U CN 205647045U
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Abstract
The utility model relates to a technical field of wireless power transmission especially relates to the antenna that is used for the transmission of magnetic resonance wireless power and including emitter, receiving arrangement and the transmission system of this antenna. This antenna includes a plurality of antenna coil, and these a plurality of antenna coil are the series connection each other to an antenna coil in a plurality of antenna coil arranges. Dispose according to the aforesaid for a EMI disturbs that is used for the antenna of magnetic resonance wireless power transmission to have good plane uniformity and has wide coverage, and it is more balanced on the space by the electromagnetic field of this antenna production, thus can improve the performance and the efficiency of the transmission of magnetic resonance wireless power, in the time of can reducing the wireless power transmission simultaneously.
Description
Technical field
This utility model relates to the technical field of wireless power transmission, particularly for magnetic resonance without
The antenna of line electric energy transmission and include the discharger of this antenna, receive device and transmission system.
Background technology
In recent years, wireless power transmission technology quickly grows, and is increasingly being applied to various
In electronic installation.Wireless power transmission technology carries out energy biography as by electromagnetic field or electromagnetic wave
Defeated technology, currently mainly has the technology of three kinds of comparative maturities: the first, electromagnetic induction technology；
The second, radio wave technologies；And the third, mr techniques.Electromagnetic induction technology former
Reason is, transmitting terminal coil launches electric energy by the alternating current of certain frequency, and receiving terminal coil passes through
This electric energy produces electric current via electromagnetic induction, thus from transmitting terminal, electric energy is transferred to receiving terminal.Nothing
The principle of line electric wave technology is, transmitting terminal collects microwave to air-launched microwave energy, receiving terminal
Energy, thus electric energy is transferred to receiving terminal from transmitting terminal.The principle of mr techniques is, makes
The transmitting terminal antenna worked in same frequency and receiving terminal antenna occur magnetic altogether in this characteristic frequency
Shake, thus electric energy is transferred to receiving terminal from transmitting terminal.
In these three technology, although its efficiency of electromagnetic induction technology is higher, but it requires transmitting terminal
Coil is possible with receiving terminal coil, and working range is less, and easily makes extraneous metal produce
Raw eddy-current heating thus there is safety issue.Although additionally, radio wave technologies its transmission away from
Away from from and can working range big, but its not only efficiency is the lowest and through-put power is done not quite, Er Qiecun
At more serious radiation problem.Relative to above two wireless power transmission technology, magnetic resonance skill
Art is improved and balances.
Antenna is the vitals in magnetic resonance wireless electric energy transmission device, and it is typically an antenna
Coil.In magnetic resonance wireless electric energy transmission device, antenna not only directly affects whole device
Performance and efficiency, the also level to electromagnetic interference play vital effect.
Utility model content
According to an aspect of the present utility model, it is provided that a kind of for magnetic resonance wireless power transmission
Antenna, it includes that multiple aerial coil, the plurality of aerial coil are serially connected, and around
An aerial coil arrangement in multiple aerial coils.
Multiple aerial coils can be around an aerial coil row in the way of polygon or circular distribution
Row.
Multiple aerial coils can be around an aerial coil arrangement in the way of square profile.
Multiple aerial coils can be around an aerial coil arrangement in the way of Multi-layers distributing.
The line that each can be wound up as there is polygon or circular cross section in multiple aerial coils
Circle.
The coil that each can be wound up as there is square cross section in multiple aerial coils.
According to another aspect of the present utility model, it is provided that a kind of magnetic resonance radio energy discharger,
It includes above-mentioned antenna.
This discharger may also include that power input unit, and the connection with external power source is with from outside
Power supply receives direct current power；DC-DC converting unit, receives direct current power from power input unit,
And the direct current power received is carried out DC-DC conversion；Power amplification circuit, changes from DC-DC
Unit receives the direct current power through DC-DC conversion, and the direct current power received is carried out power
Amplify and by the DC power transmission through power amplification to antenna so that antenna is straight based on receive
Stream power transmission radio energy energy；And match circuit, it is arranged in power amplification circuit and antenna
Between and for the impedance matching of antenna and power amplification circuit.
According to another aspect of the present utility model, it is provided that a kind of magnetic resonance radio energy receives device,
It includes above-mentioned antenna.
This reception device may also include that rectification circuit, receives radio energy energy via antenna, and
The radio energy energy received is rectified into direct current power；DC-DC converting unit, from rectified current
Road receives rectified direct current power, and the direct current power received is carried out DC-DC conversion；Defeated
Go out control unit, receive the direct current power through DC-DC conversion from DC-DC converting unit, and
The direct current power received is exported to external loading；And match circuit, it is arranged in antenna and rectification
Between circuit and for antenna and the impedance matching of rectification circuit.
According to another aspect of the present utility model, it is provided that a kind of magnetic resonance radio energy transmission system,
It includes that above-mentioned magnetic resonance radio energy discharger and magnetic resonance radio energy receive device.
According to this utility model, the antenna for magnetic resonance wireless power transmission has good plane one
Cause property also has wider coverage, and the electromagnetic field produced by this antenna is the most equal
Weighing apparatus, thus performance and the efficiency of magnetic resonance wireless power transmission can be improved, radio can be reduced simultaneously
EMI interference when can transmit.
Accompanying drawing explanation
Fig. 1 shows the magnetic resonance radio energy transmission system according to embodiment of the present utility model
Schematic block diagram；And
Fig. 2 shows the discharger of magnetic resonance radio energy shown in Fig. 1 and the antenna received in device
Schematic diagram.
Detailed description of the invention
In order to be more fully understood that the application, with reference to accompanying drawing, the various aspects of the application will be made in more detail
Explanation.It is appreciated that described drawings and detailed description are to the application preferred embodiment
Describe, rather than limit scope of the present application by any way.
Fig. 1 shows the magnetic resonance radio energy transmission system according to embodiment of the present utility model
Schematic block diagram.As shown in fig. 1, magnetic resonance radio energy transmission system 1000 can include that magnetic is altogether
Shake radio energy discharger 200 and magnetic resonance radio energy reception device 100.Magnetic resonance radio energy
The electric energy transmission resonant frequency of transmission system 1000 can be operated in ISM band, such as 6.78MHz, but also
It is suitable for other ISM band.
With reference to Fig. 1, magnetic resonance radio energy discharger 200 can include antenna 210, match circuit
220, power amplification circuit 230, DC-DC converting unit 240, power input unit 250.
Power input unit 250 can be connected with external power source, and controls the conducting with external power source and pass
Disconnected, to receive direct current power from external power source.
DC-DC converting unit 240 can be connected with power input unit 250, with single from power supply input
Unit 250 receives direct current power, and the direct current power received is carried out DC-DC conversion.Alternatively,
DC-DC converting unit 240 can be booster circuit or reduction voltage circuit.
Power amplification circuit 230 can be connected with DC-DC converting unit 240, to turn from DC-DC
Change unit 240 and receive the direct current power through DC-DC conversion, and the direct current power received is entered
Row power amplification.
Antenna 210 can be connected with power amplification circuit 230, to receive from power amplification circuit 230
Through the direct current power of power amplification, and launch radio energy energy based on this DC circuit.Antenna
The concrete structure of 210 is further described in more detail hereinafter with reference to Fig. 2.
Match circuit 220 may be arranged between power amplification circuit 230 and antenna 210, and uses
In the impedance matching of power amplification circuit 230 with antenna 210, to improve efficiency.
An embodiment according to the application, magnetic resonance radio energy discharger 200 may also include
Protection circuit 260, control unit 270 and radio communication circuit 280.
Protection circuit 260 can be used for monitoring electric current, running voltage and operating temperature, and
Operating current generated stream information when exceeding current threshold, raw when running voltage exceedes voltage threshold
Become overvoltage information and generate excess temperature information when operating temperature exceedes temperature threshold.
Radio communication circuit 280 available such as bluetooth or NFC technique communication and magnetic resonance radio
The radio communication circuit 180 that can receive in device 100 constitutes communication system, to carry out information transmission.Institute
The information of transmission can include authentication information, configuration information, energy information and power supply state information.Power supply
Battery status etc. when status information can for example, charge the battery, radio energy receives device 100 institute
The electric energy size etc. of demand.Communication system can ensure correct trouble free service between two devices.
Protection circuit 260 can be used for monitoring electric current, running voltage and operating temperature, and carries out phase
Closed stream, overvoltage and overheat protector.Such as, protection circuit 260 can exceed current threshold at operating current
Generate stream information during value, generate overvoltage information when running voltage exceedes voltage threshold and in work
Excess temperature information is generated when temperature exceedes temperature threshold.Moreover, protection circuit 260 also can be entered
The protective effects such as row is under-voltage, short-circuit.
Control unit 270 can receive information from radio communication circuit 280 and protection circuit 260, and
Based on received information to power input unit 250, DC-DC converting unit 240 and power
Amplifying circuit 230 is controlled.Such as, control unit 270 can control power amplification by PWM
Circuit 230 is so that its frequency of oscillation is 6.78MHz.
Referring again to Fig. 1, magnetic resonance radio energy receives device 100 can include antenna 110, match circuit
120, rectification circuit 130, DC-DC converting unit 140, output control unit 150.
Antenna 110 can receive radio energy energy from magnetic resonance radio energy discharger 200.My god
The concrete structure of line 110 is further described in more detail hereinafter with reference to Fig. 2.
Rectification circuit 130 can receive radio energy energy from antenna 110, and wireless by receive
Electric energy energy is rectified into direct current power.
DC-DC converting unit 140 can be connected with rectification circuit 130, to receive from rectification circuit 130
Rectified direct current power, and the direct current power received is carried out DC-DC conversion.Alternatively,
DC-DC converting unit 140 can be booster circuit or reduction voltage circuit.
Output control unit 150 can be connected with DC-DC converting unit 140, to change from DC-DC
Unit 140 receive through DC-DC conversion direct current power, and is connected with external loading and control and
The turn-on and turn-off of external loading, to export the direct current power received to external loading.
Match circuit 120 may be arranged between antenna 110 and rectification circuit 130, and for whole
Current circuit 130 and the impedance matching of antenna 110.
An embodiment according to the application, magnetic resonance radio energy receives device 100 and may also include
Protection circuit 160, control unit 170 and radio communication circuit 180.
Radio communication circuit 180 available such as bluetooth or NFC technique communication and magnetic resonance radio
Radio communication circuit 280 in energy discharger 200 constitutes communication system, to carry out information transmission.
The information transmitted can include authentication information, configuration information, energy information and power supply state information.
Protection circuit 160 can be used for monitoring electric current, running voltage and operating temperature, and carries out phase
Closed stream, overvoltage and overheat protector.Such as, protection circuit 160 can exceed current threshold at operating current
Generate stream information during value, generate overvoltage information when running voltage exceedes voltage threshold and in work
Excess temperature information is generated when temperature exceedes temperature threshold.Moreover, protection circuit 260 also can be entered
The protective effects such as row is under-voltage, short-circuit.
Control unit 170 can receive information from radio communication circuit 180 and protection circuit 160, and
Based on received information, rectification circuit 130, DC-DC converting unit 140 and output are controlled
Unit 150 is controlled.
Fig. 2 shows the discharger of magnetic resonance radio energy shown in Fig. 1 and the sky received in device
The schematic diagram of line.According to this utility model, the discharger in magnetic resonance radio energy transmission system
With structure and the configuration that the antenna receiving device all can use antenna as shown in Figure 2.
As shown in Figure 2, according to embodiment of the present utility model for magnetic resonance wireless power transmission
Antenna 2000 can include multiple aerial coil 2100.Multiple aerial coils 2100 can the company of being one another in series
Connect, and arrange around one of them aerial coil.
According to above-mentioned configuration so that the antenna for magnetic resonance wireless power transmission has good plane
Concordance also has wider coverage, and the electromagnetic field produced by this antenna is the most equal
Weighing apparatus, thus performance and the efficiency of magnetic resonance wireless power transmission can be improved, radio can be reduced simultaneously
EMI interference when can transmit.
Multiple aerial coils 2100 can be around an aerial coil arrangement in the way of square profile.
Although figure 2 illustrates the multiple aerial coils 2100 arranged in the way of square profile, but
This utility model is not limited to this, and it may be used without the mode of other distribution of shapes, for example, it is possible to circle
The mode of shape distribution or arrange in the way of the distribution of arbitrarily other polygon.
Referring again to Fig. 2, multiple aerial coils 2100 can be around an antenna in the way of Multi-layers distributing
Coil arranges.
Additionally, as in figure 2 it is shown, each can be wound up as in multiple aerial coil 2100 just has
The coil of square cross section.Although figure 2 illustrates in multiple aerial coil 2100 each
Being wound up as the coil with square cross section, but this utility model is not limited to this, it may be used without
Other shapes of coil, such as, it can be coil or any other polygon of circular cross section
The coil of cross section.
The discharger being appreciated that in magnetic resonance radio energy transmission system and the sky of reception device
The structure of line can be identical with configuration, it is possible to different.Such as, the sky in the antenna of discharger
Line coil can use and arrange in the way of square profile, and receives the antenna line in the antenna of device
Circle can use and arrange in the way of circular distribution, and vice versa.The most such as, the antenna of discharger
In each aerial coil can be wound up as having circular cross section, and receive in the antenna of device every
Individual aerial coil can be wound up as having square cross section, and vice versa.
Above by reference to exemplary embodiment, the application is described, it should be appreciated that above-mentioned
Embodiment should not be considered as the restriction to the application scope.Those skilled in the art can be the most inclined
On the premise of spirit and scope, above-mentioned embodiment is carried out various amendment and change
Shape.The protection domain of the application is defined by the claims.
Claims (11)
1. the antenna for magnetic resonance wireless power transmission, it is characterised in that including:
Multiple aerial coils, the plurality of aerial coil is serially connected, and around the plurality of
An aerial coil arrangement in aerial coil.
2. antenna as claimed in claim 1, it is characterised in that
The plurality of aerial coil in the way of polygon or circular distribution around one antenna line
Circle arrangement.
3. antenna as claimed in claim 1, it is characterised in that
The plurality of aerial coil is arranged around one aerial coil in the way of square profile
Row.
4. the antenna as according to any one of claim 1-3, it is characterised in that
The plurality of aerial coil arranges around one aerial coil in the way of Multi-layers distributing.
5. the antenna as according to any one of claim 1-3, it is characterised in that
Being each wound up as in the plurality of aerial coil has the line of polygon or circular cross section
Circle.
6. the antenna as according to any one of claim 1-3, it is characterised in that
The coil being each wound up as there is square cross section in the plurality of aerial coil.
7. a magnetic resonance radio energy discharger, it is characterised in that including:
Antenna as according to any one of claim 1-6.
8. discharger as claimed in claim 7, it is characterised in that also include:
Power input unit, is connected with external power source to receive direct current power from described external power source；
DC-DC converting unit, receives direct current power from described power input unit, and to receiving
Direct current power carry out DC-DC conversion；
Power amplification circuit, receives the direct current through DC-DC conversion from described DC-DC converting unit
Electric power, and the direct current power received is carried out power amplification and by the unidirectional current through power amplification
Power transmission is to described antenna so that described antenna launches radio energy based on the direct current power received
Energy；And
Match circuit, is arranged between described power amplification circuit and described antenna and for described
Antenna and the impedance matching of described power amplification circuit.
9. a magnetic resonance radio energy receives device, it is characterised in that including:
Antenna as according to any one of claim 1-6.
Receive device the most as claimed in claim 9, it is characterised in that also include:
Rectification circuit, receives radio energy energy, and the radio that will receive via described antenna
Direct current power can be rectified into by energy；
DC-DC converting unit, receives rectified direct current power from described rectification circuit, and docks
The direct current power received carries out DC-DC conversion；
Output control unit, receives the direct current power through DC-DC conversion from DC-DC converting unit,
And the direct current power received is exported to external loading；And
Match circuit, is arranged between described antenna and described rectification circuit and for described antenna
Impedance matching with described rectification circuit.
11. 1 kinds of magnetic resonance radio energy transmission systems, it is characterised in that including:
Magnetic resonance radio energy discharger as claimed in claim 7 or 8；And
Magnetic resonance radio energy as described in claim 9 or 10 receives device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620324036.XU CN205647045U (en) | 2016-04-18 | 2016-04-18 | Magnetic resonance wireless power transmission antenna , emitter , receiving arrangement and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620324036.XU CN205647045U (en) | 2016-04-18 | 2016-04-18 | Magnetic resonance wireless power transmission antenna , emitter , receiving arrangement and system |
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| Publication Number | Publication Date |
|---|---|
| CN205647045U true CN205647045U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620324036.XU Active CN205647045U (en) | 2016-04-18 | 2016-04-18 | Magnetic resonance wireless power transmission antenna , emitter , receiving arrangement and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068360A (en) * | 2017-01-06 | 2017-08-18 | 南通华为电力设备有限公司 | Large-area Magnetic Field equilibrium array coil and regulating step and its wireless charging device |
-
2016
- 2016-04-18 CN CN201620324036.XU patent/CN205647045U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068360A (en) * | 2017-01-06 | 2017-08-18 | 南通华为电力设备有限公司 | Large-area Magnetic Field equilibrium array coil and regulating step and its wireless charging device |
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| GR01 | Patent grant |