CN103219807A - Self-adapting wireless electric energy transmission device - Google Patents
Self-adapting wireless electric energy transmission device Download PDFInfo
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- CN103219807A CN103219807A CN2013101426488A CN201310142648A CN103219807A CN 103219807 A CN103219807 A CN 103219807A CN 2013101426488 A CN2013101426488 A CN 2013101426488A CN 201310142648 A CN201310142648 A CN 201310142648A CN 103219807 A CN103219807 A CN 103219807A
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Abstract
本发明公开了一种自适应无线电能传输装置，属于无线电能传输技术领域；该无线电能传输装置包括发射器、接收器、发射LC谐振子、中继LC谐振子和接收LC谐振子；所述发射器包括发射线圈、微控制器、电控振荡器、功率放大器和阻抗变换器；所述接收器包括接收线圈、阻抗变换器、整流桥和输出端子；所述发射LC谐振子、中继LC谐振子和接收LC谐振子具有相同的结构，分别包括谐振线圈、频段电子开关、谐振电容和控制电路；本自适应无线电能传输装置结构简单，能够根据环境中的电磁频率自动调整发射频率和谐振频率，具有较高的传输稳定性，且可以包括多个中继谐振子，实现远距离传输的目地。
The invention discloses an adaptive wireless power transmission device, which belongs to the technical field of wireless power transmission; the wireless power transmission device includes a transmitter, a receiver, a transmitting LC resonator, a relay LC resonator and a receiving LC resonator; The transmitter includes a transmitting coil, a microcontroller, an electronically controlled oscillator, a power amplifier and an impedance converter; the receiver includes a receiving coil, an impedance converter, a rectifier bridge and an output terminal; the transmitting LC resonator, the relay LC The resonant oscillator and the receiving LC resonant oscillator have the same structure, including a resonant coil, a frequency band electronic switch, a resonant capacitor and a control circuit; the self-adaptive wireless power transmission device has a simple structure and can automatically adjust the transmission frequency and resonance according to the electromagnetic frequency in the environment Frequency, with high transmission stability, and can include multiple relay resonators to achieve the purpose of long-distance transmission.
Description
Technical field
The invention belongs to the wireless power transmission technical field, relate to a kind of adaptive wireless electric energy transmitting device.
Background technology
Present power consumption equipment generally all is to utilize lead to obtain electric energy, but will produce constraint to power consumption equipment like this, and particularly the use for some power consumption equipments that move such as mobile phone, panel computer, wireless senser etc. brings inconvenience.
The wireless power mode is the effective way that addresses this problem.At present, also occurred some wireless power supplies on the market, but these wireless power supply power supply distances are short, efficient is low, is difficult to satisfy in actual production and the life demand to power supply unit.As patent " the wireless power supply " (patent No.: only be electric energy to be converted to electromagnetic wave be transmitted in the space 101345438), receive by the receiving coil coupling again.Though this method can be raised the efficiency, the resonance frequency of coil can dynamically change along with the change of environmental factor (as temperature, position, medium), and the change of resonance frequency will cause the efficiency of transmission of " wireless power supply " to reduce greatly.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of adaptive wireless electric energy transmitting device, this transmitting device outwards transmits the electric energy in the DC power supply with form of electromagnetic wave, has stable efficiency of transmission, and is applicable to long-distance transmissions.
For achieving the above object, the invention provides following technical scheme:
A kind of adaptive wireless electric energy transmitting device is characterized in that: comprise reflector, receiver, emission LC harmonic oscillator, relaying LC harmonic oscillator and receive the LC harmonic oscillator; Described reflector comprises transmitting coil, microcontroller, voltage controlled oscillator, power amplifier and impedance transformer; Described receiver comprises receiving coil, impedance transformer, rectifier bridge and lead-out terminal; Described emission LC harmonic oscillator, relaying LC harmonic oscillator and reception LC harmonic oscillator are used for adjusting the LC resonance frequency according to emission frequency of oscillation self adaptation, above-mentioned harmonic oscillator has identical structure, comprise resonance coil, frequency range electronic switch, resonant capacitance and control circuit respectively, electromagnetic viscosimeter in the control circuit detecting space, determine resonance frequency thus, according to the corresponding frequency range electronic switch of resonance frequency control, select the resonant capacitance of different appearance values to insert the loop.
DC power supply is powered to reflector, microcontroller in the reflector produces control signal, control signal control voltage controlled oscillator produces the electric oscillation signal of certain frequency, this electric oscillation signal is amplified into impedance transformer through power amplifier and boosts, the signal that comes out from impedance transformer is loaded into the transmitting coil, and transmitting coil is converted to electromagnetic energy with this AC energy and outwards launches; Be transferred into receiver through the outside electromagnetic energy emitted of transmitting coil through emission LC harmonic oscillator, relaying LC harmonic oscillator with after receiving LC harmonic oscillator coupled resonance, receiving coil in the receiver is converted to AC energy to the electromagnetic energy that receives, enter rectifier bridge after this AC energy process impedance transformer step-down and be converted into direct current energy, and export by lead-out terminal.
Further, reflector also comprises a detecting coil, and this detecting coil is used for checking the electromagnetic frequency of current surrounding environment.When the detecting coil was checked through current tranmitting frequency and electromagnetic frequency in the surrounding environment conflicts mutually, microcontroller utilized frequency hopping automatic switchover resonance frequency, was not subjected to the influence of surrounding environment factor with the assurance transmitting device.
Further, emission LC harmonic oscillator, relaying LC harmonic oscillator and receive in the LC harmonic oscillator and also comprise the resonance frequency trimmer, this resonance frequency trimmer is used for hour resonance frequency being adjusted in the frequency fluctuation scope.
Further, receiver also comprises direct current stabilizer, and this direct current stabilizer is used to adjust the direct voltage of output.
Further, described reflector and emission LC harmonic oscillator are assemblied in one, and described receiver and reception LC harmonic oscillator are assemblied in one, can obtain the big as far as possible strength of resonance like this.
Further, the number of described relaying LC harmonic oscillator be two and more than.When transmission range is far away, adopts a plurality of relaying LC harmonic oscillators, thereby realize the remote-wireless electric energy transmitting.
Beneficial effect of the present invention is: adaptive wireless electric energy transmitting device of the present invention is simple in structure, can adjust tranmitting frequency and resonance frequency automatically according to the electromagnetic frequency in the environment, has higher transmission stability, and can comprise a plurality of relaying harmonic oscillators, realize the order ground of long-distance transmissions.
Description of drawings
In order to make purpose of the present invention, technical scheme and beneficial effect clearer, the invention provides following accompanying drawing and describe:
Fig. 1 is the structural representation of this device;
Fig. 2 is the structural representation of reflector;
Fig. 3 is the structural representation of receiver;
Fig. 4 is the structural representation of LC harmonic oscillator.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As shown in drawings, this device comprises reflector 1, receiver 2, emission LC harmonic oscillator 3, relaying LC harmonic oscillator 4 and receives LC harmonic oscillator 5; Described reflector 1 comprises transmitting coil 12, microcontroller 13, voltage controlled oscillator 14, power amplifier 15 and impedance transformer 16; Described receiver 2 comprises receiving coil 21, impedance transformer 22, rectifier bridge 23 and lead-out terminal 25; Described emission LC harmonic oscillator 3, relaying LC harmonic oscillator 4 and reception LC harmonic oscillator 5 are used for adjusting the LC resonance frequency according to emission frequency of oscillation self adaptation, above-mentioned harmonic oscillator has identical structure, comprise resonance coil 41, frequency range electronic switch 42, resonant capacitance 43 and control circuit 45 respectively, electromagnetic viscosimeter in the control circuit 45 detecting spaces, determine resonance frequency thus, according to the corresponding frequency range electronic switch 42 of resonance frequency control, select the resonant capacitance 43 of different appearance values to insert the loop.
DC power supply gives reflector 1 power supply, microcontroller 13 in the reflector 1 produces control signal, control signal control voltage controlled oscillator 14 produces the electric oscillation signal of certain frequency, this electric oscillation signal is amplified into impedance transformer 16 through power amplifier 15 and boosts, the signal that comes out from impedance transformer 16 is loaded into the transmitting coil 12, and transmitting coil 12 is converted to electromagnetic energy with this AC energy and outwards launches; Be transferred into receiver 2 through transmitting coil 12 outside electromagnetic energy emitted through emission LC harmonic oscillator 3, relaying LC harmonic oscillator 4 with after receiving LC harmonic oscillator 5 coupled resonances, receiving coil 21 in the receiver 2 is converted to AC energy to the electromagnetic energy that receives, enter rectifier bridge 23 after these AC energy process impedance transformer 22 step-downs and be converted into direct current energy, and by lead-out terminal 25 outputs.In the present embodiment, receiver 2 also comprises direct current stabilizer 24, and this direct current stabilizer 24 is used to adjust the direct voltage of output.
As a kind of improvement, reflector 1 also comprises a detecting coil 11, and this detecting coil 11 is used for checking the electromagnetic frequency of current surrounding environment.When detecting coil 11 was checked through current tranmitting frequency and electromagnetic frequency in the surrounding environment conflicts mutually, microcontroller 13 utilized frequency hopping automatic switchover resonance frequency, was not subjected to the influence of surrounding environment factor with the assurance transmitting device.
Improve as another kind, emission LC harmonic oscillator 3, relaying LC harmonic oscillator 4 and receive in the LC harmonic oscillator 5 and also comprise resonance frequency trimmer 44, this resonance frequency trimmer 44 is used for hour resonance frequency being adjusted in the frequency fluctuation scope.
As further improvement, reflector 1 and emission LC harmonic oscillator 3 are assemblied in one, and described receiver 2 and reception LC harmonic oscillator 5 are assemblied in one, can obtain the big as far as possible strength of resonance like this.
As shown in Figure 4, emission LC harmonic oscillator 3, reception LC harmonic oscillator 5, relaying LC harmonic oscillator 4 have identical structure, the effect of emission LC harmonic oscillator 3, reception LC harmonic oscillator 5, relaying LC harmonic oscillator 4 is that the resonance frequency of adjusting LC harmonic oscillator is consistent with the electromagnetic viscosimeter frequency of launching, make the LC loop be in resonance condition, when emission, reception, when relaying LC harmonic oscillator reaches complete resonance, can around coil, form strong magnetic oscillation, constitute a magnetic coupling resonance energy transmission channel, with power transfer in receiver 2.The course of work is as follows: the electromagnetic viscosimeter in the control circuit detecting space, determine the electromagnetic viscosimeter frequency of emission thus, and according to the channel electronic switch of electromagnetic viscosimeter FREQUENCY CONTROL correspondence of emission, select the resonant capacitance of different appearance values to insert the loop, frequency fluctuation is among a small circle regulated resonance frequency by adjusting the resonance trimmer.
In addition, when this adaptive wireless electric energy transmitting device is applied to the short-distance wireless power supply, can cast out relaying LC harmonic oscillator.If need length apart from wireless power, then can add one or more relaying LC harmonic oscillator.
Explanation is at last, above preferred embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can make various changes to it in the form and details, and not depart from claims of the present invention institute restricted portion.
Claims (6)
1. an adaptive wireless electric energy transmitting device is characterized in that: comprise reflector (1), receiver (2), emission LC harmonic oscillator (3), relaying LC harmonic oscillator (4) and receive LC harmonic oscillator (5);
Described reflector (1) comprises transmitting coil (12), microcontroller (13), voltage controlled oscillator (14), power amplifier (15) and impedance transformer (16);
Described receiver (2) comprises receiving coil (21), impedance transformer (22), rectifier bridge (23) and lead-out terminal (25);
Described emission LC harmonic oscillator (3), relaying LC harmonic oscillator (4) and reception LC harmonic oscillator (5) are used for adjusting the LC resonance frequency according to emission frequency of oscillation self adaptation, above-mentioned harmonic oscillator has identical structure, comprise resonance coil (41), frequency range electronic switch (42), resonant capacitance (43) and control circuit (45) respectively, electromagnetic viscosimeter in control circuit (45) the detecting space, determine resonance frequency thus, according to the corresponding frequency range electronic switch (42) of resonance frequency control, select the resonant capacitance (43) of different appearance values to insert the loop;
DC power supply is given reflector (1) power supply, microcontroller (13) in the reflector (1) produces control signal, control signal control voltage controlled oscillator (14) produces the electric oscillation signal of certain frequency, this electric oscillation signal is amplified into impedance transformer (16) through power amplifier (15) and boosts, the signal that comes out from impedance transformer (16) is loaded into the transmitting coil (12), and transmitting coil (12) is converted to electromagnetic energy with this AC energy and outwards launches; Outwards be transferred into receiver (2) behind electromagnetic energy emitted process emission LC harmonic oscillator (3), relaying LC harmonic oscillator (4) and reception LC harmonic oscillator (5) coupled resonance through transmitting coil (12), receiving coil (21) in the receiver (2) is converted to AC energy to the electromagnetic energy that receives, enter rectifier bridge (23) after this AC energy process impedance transformer (22) step-down and be converted into direct current energy, and by lead-out terminal (25) output.
2. adaptive wireless electric energy transmitting device according to claim 1 is characterized in that: reflector (1) also comprises a detecting coil (11), and this detecting coil (11) is used for checking the electromagnetic frequency of current surrounding environment.
3. adaptive wireless electric energy transmitting device according to claim 2, it is characterized in that: emission LC harmonic oscillator (3), relaying LC harmonic oscillator (4) and receive in the LC harmonic oscillator (5) and also comprise resonance frequency trimmer (44), this resonance frequency trimmer (44) are used in the frequency fluctuation scope than hour resonance frequency being adjusted.
4. adaptive wireless electric energy transmitting device according to claim 3 is characterized in that: receiver (2) also comprises direct current stabilizer (24), and this direct current stabilizer (24) is used to adjust the direct voltage of output.
5. adaptive wireless electric energy transmitting device according to claim 4 is characterized in that: described reflector (1) and emission LC harmonic oscillator (3) are assemblied in one, and described receiver (2) and reception LC harmonic oscillator (5) are assemblied in one.
6. adaptive wireless electric energy transmitting device according to claim 5 is characterized in that: the number of described relaying LC harmonic oscillator (4) be two and more than.
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| CN201310142648.8A CN103219807B (en) | 2013-04-23 | 2013-04-23 | Self-adapting wireless electric energy transmission device |
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| CN201310142648.8A CN103219807B (en) | 2013-04-23 | 2013-04-23 | Self-adapting wireless electric energy transmission device |
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| CN103219807B CN103219807B (en) | 2015-07-15 |
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Cited By (23)
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| CN103633749A (en) * | 2013-11-13 | 2014-03-12 | 华南理工大学 | Resonant type wireless power transmission transmitting circuit |
| CN104242484A (en) * | 2014-09-19 | 2014-12-24 | 南昌大学 | Magnetic coupling resonant mode multi-load wireless power tree-type transmission network with load isolating characteristic |
| CN104242483A (en) * | 2014-09-19 | 2014-12-24 | 南昌大学 | Magnetic coupling resonant mode multi-load wireless power chain transmission network with load isolating characteristic |
| CN105531908A (en) * | 2013-09-13 | 2016-04-27 | 高通股份有限公司 | Systems and methods for bi-state impedance conversion in wireless power transfer |
| CN105703491A (en) * | 2014-11-28 | 2016-06-22 | 微动公司 | Transmitter and transmitter group |
| CN105826997A (en) * | 2016-05-20 | 2016-08-03 | 西安交通大学 | Closed-loop control method for battery full-range charging |
| CN106062906A (en) * | 2014-01-22 | 2016-10-26 | 鲍尔拜普罗克西有限公司 | Coupled Coil Power Control for Inductive Power Transfer Systems |
| CN106208286A (en) * | 2015-01-08 | 2016-12-07 | 三星Sdi株式会社 | Wireless charging device |
| CN106208416A (en) * | 2016-08-24 | 2016-12-07 | 重庆大学 | Electromagnetism chain type radio energy transmission system |
| CN106300699A (en) * | 2016-09-18 | 2017-01-04 | 青岛海信电器股份有限公司 | Wireless charging receiver, wireless charging system and charge control method thereof |
| CN106992610A (en) * | 2017-05-24 | 2017-07-28 | 武汉大学 | Multi-terminal recombination coil structure based on wireless power transfer |
| CN107078560A (en) * | 2015-10-02 | 2017-08-18 | 松下知识产权经营株式会社 | Wireless power transmission system |
| CN107078559A (en) * | 2015-10-02 | 2017-08-18 | 松下知识产权经营株式会社 | Wireless power transmission system |
| CN107093929A (en) * | 2017-03-24 | 2017-08-25 | 哈尔滨工业大学深圳研究生院 | Coupled resonance formula underwater wireless charging device and method |
| CN108110912A (en) * | 2018-02-07 | 2018-06-01 | 天津工业大学 | A kind of wireless electric energy transmission device with identification and resonance decoupling |
| CN108444502A (en) * | 2018-03-28 | 2018-08-24 | 武汉大学 | A kind of sensing system and measurement method based on wireless power transmission |
| CN108604833A (en) * | 2016-03-18 | 2018-09-28 | 株式会社村田制作所 | Wireless power supply system and its power transmitting device |
| CN108692744A (en) * | 2018-03-28 | 2018-10-23 | 武汉大学 | A kind of decoupled sensor measuring device and method |
| CN110235348A (en) * | 2016-11-29 | 2019-09-13 | 帝国科技及医学学院 | wireless power transfer system |
| CN110518710A (en) * | 2019-09-04 | 2019-11-29 | 南京邮电大学 | Tunable three-winding device for long range wireless power transmission |
| CN111028496A (en) * | 2019-12-10 | 2020-04-17 | 东南大学 | Remote LC passive wireless sensing system with automatic matching working frequency |
| CN112737038A (en) * | 2020-12-29 | 2021-04-30 | 东北林业大学 | Secondary side staggered parallel Buck type wireless charging system based on magnetic integration technology |
| WO2023165163A1 (en) * | 2022-03-02 | 2023-09-07 | 北京领创医谷科技发展有限责任公司 | Electric energy transmission system, and flexible electric energy repeater, relay resonance coil, in-vitro energy controller and in-vivo electric energy receiver thereof |
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| CN105531908A (en) * | 2013-09-13 | 2016-04-27 | 高通股份有限公司 | Systems and methods for bi-state impedance conversion in wireless power transfer |
| US9994114B2 (en) | 2013-09-13 | 2018-06-12 | Qualcomm Incorporated | Systems and methods for bi-state impedance conversion in wireless power transfer |
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| CN106062906B (en) * | 2014-01-22 | 2019-06-04 | 苹果公司 | Inductive power transmission device and control method thereof |
| CN106062906A (en) * | 2014-01-22 | 2016-10-26 | 鲍尔拜普罗克西有限公司 | Coupled Coil Power Control for Inductive Power Transfer Systems |
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| CN104242484B (en) * | 2014-09-19 | 2017-10-20 | 南昌大学 | Magnet coupled resonant type multi-load radio energy tree transmis sion network network with load isolation characteristic |
| CN104242483B (en) * | 2014-09-19 | 2017-10-20 | 南昌大学 | Magnet coupled resonant type multi-load radio energy chain transmission network with load isolation characteristic |
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| CN107093929A (en) * | 2017-03-24 | 2017-08-25 | 哈尔滨工业大学深圳研究生院 | Coupled resonance formula underwater wireless charging device and method |
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| CN110518710B (en) * | 2019-09-04 | 2022-10-14 | 南京邮电大学 | Tunable three-coil device for long-distance wireless power transmission |
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