CN203261134U - Frequency-adjustable wireless electric energy transmission device - Google Patents
Frequency-adjustable wireless electric energy transmission device Download PDFInfo
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- CN203261134U CN203261134U CN2013202891995U CN201320289199U CN203261134U CN 203261134 U CN203261134 U CN 203261134U CN 2013202891995 U CN2013202891995 U CN 2013202891995U CN 201320289199 U CN201320289199 U CN 201320289199U CN 203261134 U CN203261134 U CN 203261134U
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Abstract
The utility model discloses a frequency-adjustable wireless electric energy transmission device, which comprises an adjustable active crystal oscillator array, a multistage amplification circuit, an energy emission system, an energy receiving system and a rectification and voltage-stabilization matching system, wherein the adjustable active crystal oscillator array is served as a signal source, and used for generating high-frequency small signals of different energy transmission frequencies; the multistage amplification circuit is used for carrying out step amplification of the high-frequency small signals generated by the adjustable active crystal oscillator array, and providing energy for the energy emission system; the energy emission system is used for generating a high-frequency electromagnetic energy field; the energy receiving system is used for receiving the high-frequency electromagnetic energy field generated by the energy emission system, and converting the high-frequency electromagnetic energy field into high-frequency electric energy; and the rectification and voltage-stabilization matching system is used for carrying out rectification and voltage stabilization on the high-frequency electric energy converted by the energy receiving system, so as to match the electric energy required by a load. The frequency-adjustable wireless electric energy transmission device has the advantages of strong frequency selectivity, simple operation and the like, and is a new breakthrough of the frequency-adjustable wireless electric energy transmission system toward engineering.
Description
Technical field
The utility model relates to the multistage amplifying type wireless electric energy transmission device of a kind of signal, relates in particular to a kind of remote, electromagnetic resonance formula, the conveniently adjusted multistage amplifying type wireless electric energy transmission device of frequency.
Background technology
In recent years, along with people's living standard improve constantly and explore intramundane gradually deeply, people have also had Secretary to transmission means and the transmission quality of electric energy.Traditional delivery of electrical energy mainly by wire or conductor directly contact carry out, spark, skimming wear, the carbon deposit that contact produces involves the energized conductor series of problems that brought such as exposed.Wireless power transmission is a kind of technology of utilizing the wireless radio transmission electric energy, proposed by Ni Gula tesla the earliest, compare with traditional delivery of electrical energy mode, there is not the direct connection of electricity in the process of wireless power transmission between power supply and the electricity consumption, bare exposed conductor and contact sparking have been avoided, have and use the advantages such as safe, convenient, thereby be subject to numerous research workers' concern and attention.The wireless power transmission technical applications is very extensive, particularly in military affairs, mine, under water, be with a wide range of applications under the special and adverse circumstances such as medical treatment, oil, traffic.Therefore, the research for the wireless power transmission technology has very profound significance.
At present, along with the continuous intensification of wireless power transmission technical research and constantly widening of related application field thereof, increasing scientist has given enough affirming to technique.But domestic and international existing radio energy transmission system is the unadjustable system of supply frequency mostly, some radio energy transmission system realizes that by miscellaneous control chip and algorithm the frequency in the partial-band is adjustable, but these system suitabilities are poor, the control circuit algorithm is miscellaneous and operate very complicated, cost is very high, more and more is not expected in engineering is used.
The utility model content
Goal of the invention: in order to overcome the deficiencies in the prior art, the utility model provides a kind of frequency-adjustable wireless electric energy transmission device, the transmission frequency of regulating radio energy transmission system by the automatic switchover of active crystal oscillator in the active crystal oscillator array, and pass through step by step amplifying circuit of small-signal, reach high-power, long purpose apart from power delivery.
Technical scheme: for achieving the above object, the technical solution adopted in the utility model is:
A kind of frequency-adjustable wireless electric energy transmission device comprises adjustable active crystal oscillator array, multistage amplifier circuit, energy emission system, energy receiving system and rectifying and voltage-stabilizing matching system, energy emission system and the coupling of energy receiving system resonant mode; Described adjustable active crystal oscillator array is as signal source, for generation of the high frequency small-signal of different-energy transmission frequency; Described multistage amplifier circuit is used for the high frequency small-signal that adjustable active crystal oscillator array produces is amplified step by step, for the energy emission system provides energy; Described energy emission system is for generation of the high-frequency electromagnetic energy field; Described energy receiving system is used for the high-frequency electromagnetic energy field that the received energy emission system produces, and is translated into high-frequency electrical energy; Described rectification stable matching circuit is used for that the energy receiving system is transformed rear high-frequency electrical energy and carries out rectifying and voltage-stabilizing, with the required electric energy of matched load.
Because radio energy transmission system efficiency of transmission, power and transmission range and system resonance frequency are closely related, so pass through the natural frequency in conditioning signal source, can change the distance of delivery of electrical energy distance, the height of efficiency of transmission and the size of through-put power.The active crystal oscillator array of frequency-adjustable can produce the power supply signal of different frequency, the power of final output step by step signal amplified by multistage amplifier circuit, so that can reach hundreds of watts even upper kilowatt (three grades of final output works of push-pull amplifier circuit can reach more than the 300W).
Preferably, described adjustable active crystal oscillator array comprises some active crystal oscillators corresponding to different delivery of electrical energy requirements (such as distance, power and the efficient etc. of delivery of electrical energy), controls the selected of active crystal oscillator by electromagnetism interlocking, self-locking control circuit.Can add arbitrarily or delete according to requirements such as the required transmission range of radio energy transmission system, power output, transmission frequencies the number of the active crystal oscillator with different crystal oscillator frequencies.Can freely select from 1M～30M such as the modelled signal source frequency, for radio energy transmission system provides suitable, stable high frequency sine signal source.
Preferably, described adjustable active crystal oscillator array also comprises the frequency selective surface plate, is provided with some selection buttons on the described frequency selective surface plate, described selection button by control circuit one by one corresponding to the control switch of active crystal oscillator.During use, only need press the selection button, can realize the switching between multiple crystal oscillator signal source, operate short and sweetly, make things convenient for the high efficiency of transmission of system's difference transmission frequency energy; Have the advantages such as easy to adjust, safe and efficient, and the ability loss is little, in fields such as biomedicine, Smart Home, underwater operation, communications and transportation, metallurgical mines huge application prospect is arranged all.When adding arbitrarily according to requirements such as the required transmission range of radio energy transmission system, power output, transmission frequencies or deleting the number of the active crystal oscillator with different crystal oscillator frequencies, only need in frequency selective surface plate and control circuit, to do corresponding increase or delete push-button switch and electromagnetic switch can be finished the function that frequency band increases or reduces.
Preferably, described frequency selective surface plate is non magnetic aluminum panel.The frequency selective surface plate is a kind of visual design.
Preferably, described electromagnetism interlocking, self-locking control circuit adopt mechanical type sparkproof electromagnetic relay directly to connect; The all corresponding mechanical type sparkproof electromagnetic relay of each active crystal oscillator, the control switch of active crystal oscillator forms the self-locking power supply circuits with corresponding mechanical type sparkproof electromagnetic relay normally opened contact, the normally-closed contact of the mechanical type sparkproof electromagnetic relay of the normally opened contact of this mechanical type sparkproof electromagnetic relay and all the other all active crystal oscillators is connected in series simultaneously, consists of interlock circuit; Switch arbitrarily the active crystal oscillator of different frequency when making things convenient for crystal oscillator to select.
Preferably, described multistage amplifier circuit is that the multi-level transistor formula is amplified Power Electronic Circuit (such as three grades of push-pull amplifier circuits), the reflection power of every grade of amplifying circuit when recommending amplification in order to reduce system as far as possible, need to regulate the regulating resistance in every grade of amplifying circuit, so that the input impedance of every grade of amplifying circuit is 50 ohm, link to each other by 50 ohm of coaxial transmission cables between the adjacent level amplifying circuit, avoid the reflection power that causes because of impedance mismatch on the impact of overall system power output.
Described energy emission system and energy receiving system all can be designed to by adjustable vacuum ceramic electric capacity and pound the structure that the spiral hollow copper pipe is composed in series more; Preferably, described energy emission system is composed in series with high frequency Tao Jie tuning capacitance by energy transmitting coil and transmission, by regulating the resonance frequency that sends with high frequency Tao Jie tuning capacitance adjusting energy transmitting system; Described energy receiving system is composed in series with high frequency Tao Jie tuning capacitance by energy receiving coil and reception, by regulating the resonance frequency that receives with high frequency Tao Jie tuning capacitance adjusting energy receiving system; During work, the resonance frequency of the frequency of signal source, energy transmitting system is identical with the resonance frequency of energy receiving system.The adjusting of same frequency can make to produce ultrahigh speed electromagnetic coupled field between energy emission system and energy receiving system, by resonant mode magnetic coupling wireless power transmission, so that the high-power high-frequency energy after amplifying can efficient supply load.
The wireless electric energy transmission device that this case provides is a kind of can carrying out at a distance according to user's actual requirement selection appropriate system Energy Transfer frequency, and high-power energy wireless transmission and frequency adjustment be radio energy transmission system easily.After active crystal oscillator is selected to finish, pass through multistage amplifier circuit, the high frequency small-signal that active crystal oscillator is produced amplifies step by step, and the resonance frequency of adjusting energy emission system and energy receiving system, above-mentioned three's frequency is reached unanimously, reach the optimum efficiency of the long distance of energy, high-power, high efficiency of transmission.When system parameters change or Energy Transfer when changing, can find very soon the best transmission effect by the resonance frequency of selecting suitable active crystal oscillator and adjusting energy emission system and energy receiving system.This system transmissions frequency can freely be selected at 1M～30M, and multistage amplification effect is obvious.
So the utility model not only provides a kind of new radio energy transmission system primary power scheme, frequency selectivity is strong simultaneously, and operation is extremely simple, is the new breakthrough that the frequency-adjustable radio energy transmission system moves towards through engineering approaches.
Beneficial effect: the frequency-adjustable wireless electric energy transmission device that the utility model provides, has following advantage: 1, simple in structure, can select suitable wireless power transmission signal frequency according to the needs of user and transmission objective, and it is extremely convenient to regulate, and adopt active crystal oscillator as signal source, frequency stabilization, applicable to long distance, high-power wireless electric energy transmission system, the engineering application is strong; 2, adopt the multi-level transistor formula to amplify the signal amplifying element of Power Electronic Circuit, low in energy consumption, the amplification linearity is good, can increase and decrease at random the progression of amplifying circuit according to the requirement of actual amplifying power, and applicability is strong; 3, adopt electromagnetic resonance formula radio energy transmission system that electric energy is carried out isolated transmission, fail safe is good, and transmission range is long, and efficient is high, and range of application is wider.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of adjustable active crystal oscillator array;
Fig. 3 is the structural representation of frequency selective surface plate;
Fig. 4 is the part control circuit structural representation of adjustable active crystal oscillator array.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Be illustrated in figure 1 as a kind of frequency-adjustable wireless electric energy transmission device, comprise adjustable active crystal oscillator array, multistage amplifier circuit, energy emission system, energy receiving system and rectifying and voltage-stabilizing matching system, energy emission system and the coupling of energy receiving system resonant mode; Described adjustable active crystal oscillator array is as signal source, for generation of the high frequency small-signal of different-energy transmission frequency; Described multistage amplifier circuit is used for the high frequency small-signal that adjustable active crystal oscillator array produces is amplified step by step, for the energy emission system provides energy; Described energy emission system is for generation of the high-frequency electromagnetic energy field; Described energy receiving system is used for the high-frequency electromagnetic energy field that the received energy emission system produces, and is translated into high-frequency electrical energy; Described rectification stable matching circuit is used for that the energy receiving system is transformed rear high-frequency electrical energy and carries out rectifying and voltage-stabilizing, with the required electric energy of matched load.
Described energy emission system and energy receiving system all are designed to by adjustable vacuum ceramic electric capacity and pound the structure that the spiral hollow copper pipe is composed in series more; Concrete, described energy emission system is composed in series with high frequency Tao Jie tuning capacitance by energy transmitting coil and transmission, by regulating the resonance frequency that sends with high frequency Tao Jie tuning capacitance adjusting energy transmitting system; Described energy receiving system is composed in series with high frequency Tao Jie tuning capacitance by energy receiving coil and reception, by regulating the resonance frequency that receives with high frequency Tao Jie tuning capacitance adjusting energy receiving system; During work, the resonance frequency of the frequency of signal source, energy transmitting system is identical with the resonance frequency of energy receiving system.The adjusting of same frequency can make to produce ultrahigh speed electromagnetic coupled field between energy emission system and energy receiving system, by resonant mode magnetic coupling wireless power transmission, so that the high-power high-frequency energy after amplifying can efficient supply load.
Described multistage amplifier circuit is that the multi-level transistor formula is amplified Power Electronic Circuit, is specially three grades of push-pull amplifier circuits, and the input impedance of every grade of amplifying circuit is 50 ohm, links to each other by 50 ohm of coaxial transmission cables between the adjacent level amplifying circuit.
As shown in Figure 2, described adjustable active crystal oscillator array comprises some corresponding to different delivery of electrical energy requirement (delivery of electrical energy requirements, distance, power and efficient etc. such as delivery of electrical energy) active crystal oscillator, be used for controlling active crystal oscillator selected electromagnetism interlocking, self-locking control circuit, adjustable active crystal oscillator array also comprises the frequency selective surface plate.Described frequency selective surface plate is non magnetic aluminum panel, as shown in Figure 3, is provided with some selection buttons on the described frequency selective surface plate, described selection button by control circuit one by one corresponding to the control switch of active crystal oscillator.
Such as Fig. 2, shown in Figure 4, described electromagnetism interlocking, self-locking control circuit adopt mechanical type sparkproof electromagnetic relay directly to connect; The all corresponding mechanical type sparkproof electromagnetic relay of each active crystal oscillator, the control switch of active crystal oscillator forms the self-locking power supply circuits with corresponding mechanical type sparkproof electromagnetic relay normally opened contact, the normally-closed contact of the mechanical type sparkproof electromagnetic relay of the normally opened contact of this mechanical type sparkproof electromagnetic relay and all the other all active crystal oscillators is connected in series simultaneously, consists of interlock circuit.
The wireless electric energy transmission device of this case has following features: 1, change the system transmissions frequency by the conditioning signal source frequency, by electromagnetic relay main circuit and control circuit, reach the purpose of selecting suitable active crystal oscillator frequency, thereby select suitable system capacity transmission resonance frequency; 2, radio energy transmission system energy generating source is comprised of active crystal oscillator and multi-level transistor formula amplification Power Electronic Circuit, the signal amplification linearity is good, efficient is high, signal source frequency can freely be selected at 1M～30M, can provide suitable, stable high frequency sine signal source for radio energy transmission system; 3, transmission frequency is by the one-touch adjusting of frequency selective surface plate, simple to operate, need not to add the control chip circuit and can realize the stable system transmissions frequency sent by active crystal oscillator, and frequency selects to adopt electromagnetic relay directly to control, safe ready, and reliability is high; 4, adopt the electromagnetic resonance coupled modes to carry out the wireless transmission of energy, and the induction by Energy Coupling coil and energy receiving coil in the energy receiving system is coupled, large-current electric in the energy receiving coil can be isolated draw, reduced load directly is connected the problems such as the load matched brought and frequency be unstable with the energy receiving coil, thereby affected transmission range and the power output of radio energy transmission system;
The above only is preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (8)
1. frequency-adjustable wireless electric energy transmission device, it is characterized in that: comprise adjustable active crystal oscillator array, multistage amplifier circuit, energy emission system, energy receiving system and rectifying and voltage-stabilizing matching system, energy emission system and the coupling of energy receiving system resonant mode; Described adjustable active crystal oscillator array is as signal source, for generation of the high frequency small-signal of different-energy transmission frequency; Described multistage amplifier circuit is used for the high frequency small-signal that adjustable active crystal oscillator array produces is amplified step by step, for the energy emission system provides energy; Described energy emission system is for generation of the high-frequency electromagnetic energy field; Described energy receiving system is used for the high-frequency electromagnetic energy field that the received energy emission system produces, and is translated into high-frequency electrical energy; Described rectification stable matching circuit is used for that the energy receiving system is transformed rear high-frequency electrical energy and carries out rectifying and voltage-stabilizing, with the required electric energy of matched load.
2. frequency-adjustable wireless electric energy transmission device according to claim 1, it is characterized in that: described adjustable active crystal oscillator array comprises some active crystal oscillators corresponding to different delivery of electrical energy requirements, controls the selected of active crystal oscillator by electromagnetism interlocking, self-locking control circuit.
3. frequency-adjustable wireless electric energy transmission device according to claim 2, it is characterized in that: described adjustable active crystal oscillator array also comprises the frequency selective surface plate, be provided with some selection buttons on the described frequency selective surface plate, described selection button by control circuit one by one corresponding to the control switch of active crystal oscillator.
4. frequency-adjustable wireless electric energy transmission device according to claim 3, it is characterized in that: described frequency selective surface plate is non magnetic aluminum panel.
5. frequency-adjustable wireless electric energy transmission device according to claim 2 is characterized in that: described electromagnetism interlocking, self-locking control circuit adopt mechanical type sparkproof electromagnetic relay directly to connect; The all corresponding mechanical type sparkproof electromagnetic relay of each active crystal oscillator, the control switch of active crystal oscillator forms the self-locking power supply circuits with corresponding mechanical type sparkproof electromagnetic relay normally opened contact, the normally-closed contact of the mechanical type sparkproof electromagnetic relay of the normally opened contact of this mechanical type sparkproof electromagnetic relay and all the other all active crystal oscillators is connected in series simultaneously, consists of interlock circuit.
6. frequency-adjustable wireless electric energy transmission device according to claim 1, it is characterized in that: described multistage amplifier circuit is that the multi-level transistor formula is amplified Power Electronic Circuit, the input impedance of every grade of amplifying circuit is 50 ohm, links to each other by 50 ohm of coaxial transmission cables between the adjacent level amplifying circuit.
7. frequency-adjustable wireless electric energy transmission device according to claim 1, it is characterized in that: described energy emission system is composed in series with high frequency Tao Jie tuning capacitance by energy transmitting coil and transmission, by regulating the resonance frequency that sends with high frequency Tao Jie tuning capacitance adjusting energy transmitting system; Described energy receiving system is composed in series with high frequency Tao Jie tuning capacitance by energy receiving coil and reception, by regulating the resonance frequency that receives with high frequency Tao Jie tuning capacitance adjusting energy receiving system; During work, the resonance frequency of the frequency of signal source, energy transmitting system is identical with the resonance frequency of energy receiving system.
8. according to claim frequency-adjustable wireless electric energy transmission device according to claim 1, it is characterized in that: described multistage amplifier circuit is three grades of push-pull amplifier circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202891995U CN203261134U (en) | 2013-05-23 | 2013-05-23 | Frequency-adjustable wireless electric energy transmission device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202891995U CN203261134U (en) | 2013-05-23 | 2013-05-23 | Frequency-adjustable wireless electric energy transmission device |
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| CN203261134U true CN203261134U (en) | 2013-10-30 |
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| CN2013202891995U Withdrawn - After Issue CN203261134U (en) | 2013-05-23 | 2013-05-23 | Frequency-adjustable wireless electric energy transmission device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312048A (en) * | 2013-05-23 | 2013-09-18 | 东南大学 | Frequency-adjustable wireless electric energy transmission device |
| CN107834713A (en) * | 2017-11-13 | 2018-03-23 | 武汉大学 | A kind of radio energy transmission system tuning feedback for considering dynamic property |
-
2013
- 2013-05-23 CN CN2013202891995U patent/CN203261134U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312048A (en) * | 2013-05-23 | 2013-09-18 | 东南大学 | Frequency-adjustable wireless electric energy transmission device |
| CN103312048B (en) * | 2013-05-23 | 2015-07-29 | 东南大学 | A kind of frequency-adjustable wireless electric energy transmission device |
| CN107834713A (en) * | 2017-11-13 | 2018-03-23 | 武汉大学 | A kind of radio energy transmission system tuning feedback for considering dynamic property |
| CN107834713B (en) * | 2017-11-13 | 2020-05-12 | 武汉大学 | Tuning feedback control method of wireless power transmission system considering dynamic performance |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131030 Effective date of abandoning: 20150729 |
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| RGAV | Abandon patent right to avoid regrant |