CN110098668A - A kind of wireless energy transfer system - Google Patents
A kind of wireless energy transfer system Download PDFInfo
- Publication number
- CN110098668A CN110098668A CN201910450644.3A CN201910450644A CN110098668A CN 110098668 A CN110098668 A CN 110098668A CN 201910450644 A CN201910450644 A CN 201910450644A CN 110098668 A CN110098668 A CN 110098668A
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- Prior art keywords
- impedance matching
- wireless energy
- energy transfer
- converter
- transfer system
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- 238000012546 transfer Methods 0.000 title claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 27
- 239000003990 capacitor Substances 0.000 claims description 14
- 239000007767 bonding agent Substances 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 16
- 238000005516 engineering process Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 230000007812 deficiency Effects 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/15—Circuit arrangements or systems for wireless supply or distribution of electric power using ultrasonic waves
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of wireless energy transfer systems, including continuous wave signal source, radio-frequency power amplifier, transmitting impedance matching network, sound-electric channel, reception impedance matching network, radio frequency AC-DC converter and the load circuit being sequentially connected electrically, wherein sound-electric channel includes transmitting transducer, receives energy converter and metal wall, and transmitting transducer and reception energy converter are fixed on the two sides of metal wall.The invention also discloses impedance match technique and the radio frequency AC-DC converter based on resonant inverter, the system can penetrate the shell transmission electric energy of sealing metal cabin (or container), thoroughly exempt the needs punched on the shell of these cabins (or container), and the electric energy of transmission can efficiently be exported the constant voltage DC that can be used for electronic equipment, solve many deficiencies existing for existing ultrasonic wireless energy transfer system, perfect ultrasonic wireless energy transmission technology improves the practicability of ultrasonic wireless energy transfer system.
Description
Technical field
The present invention relates to wireless energy transmission technologies, more precisely, are related to one kind and are surpassed for closed metal container
The system of sound wave wireless transmission.
Background technique
Wireless energy transmission technology is generally using electromagnetic wave, alternating magnetic field or electric field as the carrier of energy, when needs are worn
When the shell transmission information and energy of saturating sealing metal cabin, these technologies just as the screen effect of shell and fail, institute
To utilize wire transmission electricity after these occasions (such as hyperbaric oxygen chamber, spacecraft, submersible etc.) have to punch on shell
Can, the structural intergrity of metal shell is thus destroyed, the service life of metal shell is influenced, increases maintenance cost.And surpass
Sound wave is not limited as a kind of mechanical wave by electromagnetic shielding effect, can penetrate metal object propagation, therefore in above-mentioned field
It closes, carrier of the ultrasonic wave as energy can be used, eliminate the needs punched on metal shell, keep the structure of metal shell
Integrality improves its service life, reduces maintenance cost.
At the beginning of 21 century, just it is suggested using the concept that ultrasonic wave carries out wireless energy transfer, it is subsequent also to have carried out greatly
Quantifier elimination, but it is lower for the system design applicability of closed metal container progress ultrasonic energy delivery at present, for
The technical research of specific structure, technical detail etc. is also not perfect.
Summary of the invention
It is an object of the present invention to provide a kind of wireless energy transfer systems, solve existing ultrasonic wireless energy transfer
Many deficiencies existing for system improve ultrasonic wireless energy transmission technology, improve the practical of ultrasonic wireless energy transfer system
Property.
To achieve the goals above, the present invention provides a kind of wireless energy transfer systems, including the company being sequentially connected electrically
Continuous wave signal source, transmitting impedance matching network, sound-electric channel, receives impedance matching network, radio frequency AC- at radio-frequency power amplifier
DC converter and load circuit.
Preferably, the sound-electric channel includes transmitting transducer, receives energy converter and metal wall, the transmitting transducing
Device and the both side surface for receiving energy converter and being fixed on the metal wall.
Preferably, the sound-electric channel further includes bonding agent, and the transmitting transducer and the reception energy converter pass through institute
State the two sides that bonding agent is fixed on the metal wall.
Preferably, the material of the bonding agent is epoxy resin.
Preferably, the transmitting impedance matching network and/or the reception impedance matching network and the transmitting transducer
And/or the reception energy converter network consisting topological structure.
Preferably, the network topology structure is first order network structure, the transmitting impedance matching network and/or described is connect
Receipts impedance matching network is reactance component network, is connected in series with the transmitting transducer and/or the reception energy converter.
Preferably, the network topology structure is first order network structure, the transmitting impedance matching network and/or described is connect
Receipts impedance matching network is reactance component network, is connected in parallel with the transmitting transducer and/or the reception energy converter.
Preferably, the network topology structure is Second Order Network structure, and the second order topological structure is L-type.
Preferably, the radio frequency AC-DC converter includes the resonant inverter being electrically connected and DC-DC converter,
The resonant inverter is electrically connected with the reception impedance matching network, the DC-DC converter and load electricity
Road is electrically connected.
Preferably, the resonant inverter includes four high-speed rectifier diode D1-4, a filter capacitor C5, one
Resonance inductor L1With four resonant capacitor C1-4.Wherein four resonant capacitor C1-4With four high-speed rectifier diodes
D1-4It is connected in parallel.
Preferably, the output impedance of the radio-frequency power amplifier, the input impedance of the transmitting impedance matching network, institute
The input impedance for stating the output impedance and the radio frequency AC-DC converter that receive impedance matching network is 50 Ω.
The present invention relates to a kind of ultrasonic wireless energy transfer system, the system can be implemented as sealing metal cabin (or
Container) without constant current source supply side electronic equipment provide power supply supply, thus thoroughly exempt these cabins (or hold
Device) metal shell on punching carry out the needs of wired power supply, reduce maintenance cost to greatest extent, improve safety coefficient.
Meanwhile a kind of impedance match technique is devised in the ultrasonic wireless energy transfer system of the present invention and one kind is based on
The radio frequency AC-DC converter of resonant inverter, can efficiently export the electric energy of transmission can be used for electronic equipment
Constant voltage DC, solves many deficiencies existing for existing ultrasonic wireless transmitting system, perfect ultrasonic wireless energy transfer system
Technology, improve the practicability of ultrasonic wireless energy transfer system.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, feature and its advantage of the invention
It will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is the schematic diagram of wireless energy transfer system structure of the present invention.
Fig. 2 is the schematic diagram of impedance matching network topological structure of the present invention.
Fig. 3 is the structural schematic diagram of radio frequency AC-DC converter of the present invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of the component and positioned opposite, numerical expression and numerical value otherwise illustrated in these embodiments are of the invention
Range.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Fig. 1 is a kind of structural block diagram of wireless energy transfer system provided in an embodiment of the present invention.As shown in Figure 1 is wireless
Energy transmission system (100), including be sequentially connected electrically continuous wave signal source (11), radio-frequency power amplifier (12), transmitting resistance
Anti- matching network (13), receives impedance matching network (15), radio frequency AC-DC converter (16) and load circuit at sound-electric channel
(17)。
Wherein the sound-electric channel includes transmitting transducer (141), receives energy converter (144) and metal wall (143),
The transmitting transducer (141) and the two sides for receiving energy converter (144) and being fixed on the metal wall (143).Preferably,
The sound-electric channel further includes bonding agent (142), and the transmitting transducer (141) and the reception energy converter (144) pass through institute
State the two sides that bonding agent (142) is fixed on the metal wall (143), the acoustic impedance and transmitting/reception of the bonding agent (142)
Energy converter, metal wall (143) are close, it is preferred that the material of the bonding agent (142) is epoxy resin.
When the system is operating, continuous wave signal source (11) export radiofrequency sinusoidal continuous wave, through radio-frequency power amplifier (12)
It after amplifying power, drives transmitting transducer (141), transmitting transducer (141) generates power under the excitation of power sinusoidal signal
Ultrasonic wave after ultrasonic wave penetrates metal wall (143), is captured by reception energy converter (144), and receiving energy converter (144) will surpass again
Sound wave is converted to electric signal and exports to impedance matching network (15) are received, and receives the radio frequency that impedance matching network (15) export again
Power signal is converted to the constant low ripple direct current of voltage through radio frequency AC-DC converter (16), then drives load circuit (17).
Wireless energy transfer system of the invention can be implemented as sealing metal cabin (or container) and supply without constant current source
The electronic equipment for the side answered provides power supply supply, punches on the metal shell of these cabins (or container) to thoroughly exempt
The needs for carrying out wired power supply reduce maintenance cost to greatest extent, improve safety coefficient.
It is present invention transmitting impedance matching network (13) and/or reception impedance matching network (15) and hair with reference to Fig. 2, Fig. 2
It penetrates energy converter (141) and/or receives energy converter (144) network consisting topological structure.
Preferably, as shown in (a) of Fig. 2, the network topology structure is first order network structure, the transmitting impedance matching
Network (13) and/or the reception impedance matching network (15) are reactance component network, with the transmitting transducer (141) and/
Or the reception energy converter (144) is connected in series.
Preferably, as shown in (b) of Fig. 2, the network topology structure is first order network structure, the transmitting impedance matching
Network (13) and/or the reception impedance matching network (15) are reactance component network, with the transmitting transducer (141) and/
Or the reception energy converter (144) is connected in parallel.
Preferably, as shown in (c) of Fig. 2, (d), the network topology structure is Second Order Network structure, the second order topology
Structure is L-type.
According to the power grade of transmission needed for the material of metal wall, thickness and system, unlike material, ruler can choose
Very little and resonance frequency energy converter.Transmitting/reception impedance matching network structure is according to sound-radio channel scattering parameters
The difference of (Scattering parameter), the selection (X in figure from the four kinds of single orders or Second Order Network in Fig. 21And X2It represents
Reactance component, i.e. capacitor or inductor, ZpRepresent the electric port of transmitting/reception energy converter), the value of reactance component also basis
The scattering parameters of sound-electric channel are calculated.
The dual-port that sound-electric channel is completed in transmitting impedance matching network (13), reception impedance matching network (15) jointly is total
Yoke impedance matching, to reduce the galvanic reflex of sound-electric channel input and output port, to improve its power transmission efficiency.
It is the structural schematic diagram of radio-frequency alternating current direct current transducer of the present invention with reference to Fig. 3, Fig. 3.Radio frequency AC-DC converter (16)
Including the resonant inverter (161) being electrically connected and DC-DC converter (162), the resonant inverter (161) and institute
It states reception impedance matching network (15) to be electrically connected, the DC-DC converter (162) and the load circuit (17) carry out electricity
Connection.The resonant inverter (161) includes four high-speed rectifier diode D1-4, a filter capacitor C5, a resonance electricity
Feel L1With four resonant capacitor C1-4, wherein four resonant capacitor C1-4With four high-speed rectifier diodes D1-4It carries out
It is connected in parallel.
Inductance L1With capacitor C1-4It is referred to as resonance inductor and resonant capacitor, the effect of resonance inductor and resonant capacitor is
The turn-on cycle of resonant inverter is extended by current resonance, resonant inverter is stablized in the effect of DC-DC converter
Operating point, the two characteristics realize the input resistant matching of radio frequency AC-DC converter jointly.The value of resonance inductor and resonant capacitor
It can be calculated according to the input impedance of radio frequency AC-DC converter, input frequency, input power and output voltage.Radio frequency
The input impedance of AC-DC converter and the output impedance conjugate impedance match for receiving impedance matching network, emit impedance matching network
The output impedance conjugate impedance match of input impedance and radio-frequency power amplifier, four are generally chosen for the common feature in radio frequency system
Impedance, i.e. 50 Ω.
Radio frequency AC/DC changeover switch (16) has input resistant matching function, so as to reduce to reception impedance matching net
The reflection of network (15) output signal, further increases the power transmission efficiency of system totality.
Impedance match technique in ultrasonic wireless energy transfer system, and the radio frequency alternating current-direct current based on resonant inverter
The electric energy of transmission can efficiently be exported the constant voltage DC that can be used for electronic equipment, solve existing ultrasound by converter
Many deficiencies existing for wireless transmitting system, perfect ultrasonic wireless energy transmission technology, improve ultrasonic wireless energy transfer
The practicability of system.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (10)
1. a kind of wireless energy transfer system, it is characterised in that: including be sequentially connected electrically continuous wave signal source (11), radio frequency function
Rate amplifier (12), sound-electric channel, receives impedance matching network (15), radio frequency AC-DC turns at transmitting impedance matching network (13)
Parallel operation (16) and load circuit (17)；
Wherein the sound-electric channel includes transmitting transducer (141), receives energy converter (144) and metal wall (143), described
Transmitting transducer (141) and the two sides for receiving energy converter (144) and being fixed on the metal wall (143).
2. wireless energy transfer system according to claim 1, it is characterised in that: the sound-electric channel further includes bonding
Agent (142), the transmitting transducer (141) and the reception energy converter (144) are fixed on described by the bonding agent (142)
The two sides of metal wall (143).
3. wireless energy transfer system according to claim 2, it is characterised in that: the material of the bonding agent (142) is
Epoxy resin.
4. wireless energy transfer system according to claim 1, it is characterised in that: the transmitting impedance matching network (13)
And/or the reception impedance matching network (15) and the transmitting transducer (141) and/or reception energy converter (144) group
At network topology structure.
5. wireless energy transfer system according to claim 4, it is characterised in that: the network topology structure is single order net
Network structure, the transmitting impedance matching network (13) and/or the reception impedance matching network (15) they are reactance component network, with
The transmitting transducer (141) and/or the reception energy converter (144) are connected in series.
6. wireless energy transfer system according to claim 4, it is characterised in that: the network topology structure is single order net
Network structure, the transmitting impedance matching network (13) and/or the reception impedance matching network (15) they are reactance component network, with
The transmitting transducer (141) and/or the reception energy converter (144) are connected in parallel.
7. wireless energy transfer system according to claim 4, it is characterised in that: the network topology structure is second order net
Network structure, the second order topological structure are L-type.
8. wireless energy transfer system according to claim 1, it is characterised in that: the radio frequency AC-DC converter (16)
Including the resonant inverter (161) being electrically connected and DC-DC converter (162), the resonant inverter (161) and institute
It states reception impedance matching network (15) to be electrically connected, the DC-DC converter (162) and the load circuit (17) carry out electricity
Connection.
9. wireless energy transfer system according to claim 8, it is characterised in that: resonant inverter (161) packet
Include four high-speed rectifier diode D1-4, a filter capacitor C5, a resonance inductor L1With four resonant capacitor C1-4.Wherein institute
State four resonant capacitor C1-4With four high-speed rectifier diodes D1-4It is connected in parallel.
10. according to claim 1 to wireless energy transfer system described in 9 any claims, it is characterised in that: the radio frequency
Input impedance, the reception impedance matching of the output impedance of power amplifier (12), transmitting impedance matching network (13)
The input impedance of the output impedance of network (15) and the radio frequency AC/DC changeover switch (16) is 50 Ω.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910450644.3A CN110098668A (en) | 2019-05-28 | 2019-05-28 | A kind of wireless energy transfer system |
| PCT/CN2019/106381 WO2020237916A1 (en) | 2019-05-28 | 2019-09-18 | Wireless energy transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910450644.3A CN110098668A (en) | 2019-05-28 | 2019-05-28 | A kind of wireless energy transfer system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110098668A true CN110098668A (en) | 2019-08-06 |
Family
ID=67449426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910450644.3A Pending CN110098668A (en) | 2019-05-28 | 2019-05-28 | A kind of wireless energy transfer system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110098668A (en) |
| WO (1) | WO2020237916A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030319A (en) * | 2019-11-26 | 2020-04-17 | 吕舒晗 | Underwater non-contact wireless energy transmission system based on ultrasonic waves |
| WO2020237916A1 (en) * | 2019-05-28 | 2020-12-03 | 中科新声(苏州)科技有限公司 | Wireless energy transmission system |
| CN112543065A (en) * | 2020-12-03 | 2021-03-23 | 中北大学 | Wireless power transmission and communication device and communication method for sealed metal container |
| CN113114055A (en) * | 2021-03-05 | 2021-07-13 | 中国科学院声学研究所 | Self-adaptive AC-DC conversion device and method for wireless transmission of sound carrier |
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Also Published As
| Publication number | Publication date |
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| WO2020237916A1 (en) | 2020-12-03 |
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