CN110707791A - Ultrasonic wave-based remote high-power underwater wireless charging system - Google Patents
Ultrasonic wave-based remote high-power underwater wireless charging system Download PDFInfo
- Publication number
- CN110707791A CN110707791A CN201911005057.XA CN201911005057A CN110707791A CN 110707791 A CN110707791 A CN 110707791A CN 201911005057 A CN201911005057 A CN 201911005057A CN 110707791 A CN110707791 A CN 110707791A
- Authority
- CN
- China
- Prior art keywords
- energy
- power
- ultrasonic
- underwater
- wireless charging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
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
-
- 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
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
Abstract
The invention discloses a remote high-power underwater wireless charging system based on ultrasonic waves, and belongs to the field of remote high-power underwater wireless charging. The invention comprises a power supply, a front-end transmitting system, ultrasonic waves, a rear-end receiving system and an electric energy storage device. The power supply is an alternating current power supply or a direct current power supply and is used for providing high-power electric energy for the whole set of system. The front-end transmitting system converts the electric energy into ultrasonic energy which is transmitted in water in a long distance and low loss mode. The rear receiving system receives the ultrasonic energy and converts the ultrasonic energy into an electric signal suitable for charging to charge the energy storage device. The invention realizes ultrasonic-based remote high-power wireless charging for the electric energy storage device of the underwater electromechanical equipment or the navigation body in the deep water on the basis that the underwater electromechanical equipment or the underwater navigation body in the deep water does not need to return, so as to further prolong the working time of the underwater electromechanical equipment in the deep sea and expand the deep-sea cruising distance and range of the underwater navigation body.
Description
Technical Field
The invention relates to a remote high-power underwater wireless charging system based on ultrasonic waves, and belongs to the field of remote high-power underwater wireless charging.
Background
The deep water electromechanical equipment needs continuous energy support for long-time normal work, and the running equipment is connected with the power supply through an electric wire, so that the motion range of the equipment is limited, and the equipment can only effectively work within a certain distance range from the power supply. For the underwater vehicle carrying the independent batteries, the size of the underwater vehicle limits the number of the carried batteries, thereby influencing the effective working time of the underwater vehicle. At present, the deepwater navigation body mainly carries out energy supply by periodically returning to the water surface, so that a large amount of energy is consumed in the process of returning, and the effective cruising range of the deepwater navigation body is limited. Therefore, the wireless power transmission technology is applied to underwater power supply, the continuous working time of the deep-water electromechanical equipment is expected to be prolonged, and the cruising time and the cruising range of the underwater navigation body are expanded.
According to different working principles, wireless power transmission technologies mainly include electric field coupling type, magnetic field coupling type, microwave radiation, laser, ultrasonic wave and the like. The conductivity of water indicates that electric field coupling techniques cannot be used in underwater environments. The magnetic field coupling is divided into an inductive coupling type and a resonant coupling type, the inductive coupling transmission distance based on the transformer principle is only millimeter level, the resonant coupling type is very easily influenced by the marine environment, such as ocean current impact, seawater temperature and the like, and the long-distance wireless electric energy transmission cannot be realized. The wireless power transmission in microwave radiation and laser modes depends on the electromagnetic wave principle, but the underwater environment is complex, the electromagnetic wave can be quickly attenuated in water, and the electromagnetic wave cannot be used as an effective information and energy carrier in water. The hydrostatic pressure in the deep water environment is strong, for example, the hydrostatic pressure at 1000 meters under water is 10MPa, so that deep water electromechanical equipment and a navigation body need to face the extreme working environment of deep water high pressure, which puts strict requirements on the hydrostatic pressure resistance of the structure of the equipment device. Meanwhile, in order to ensure the continuous and stable operation of the electromechanical device and the navigation body, a high-power wireless charging technology is needed to meet the requirement of underwater rapid charging and discharging.
The electric field coupling type, magnetic field coupling type, microwave radiation and laser wireless power transmission technologies cannot realize a remote and high-power wireless charging technology under a deep water high-voltage extreme environment, and sound waves can be remotely transmitted (up to hundreds of kilometers) in water and the energy attenuation is reduced.
Disclosure of Invention
In order to solve the problem that the existing wireless charging technology and device cannot transmit long-distance and high-power energy in an underwater deep sea high-voltage extreme environment, the invention discloses an ultrasonic-based long-distance high-power underwater wireless charging system, which aims to solve the technical problems that: on the basis that the underwater electromechanical equipment or the underwater vehicle in the deep water does not need to return, the ultrasonic-based remote high-power wireless charging is realized for the electric energy storage device of the underwater electromechanical equipment or the underwater vehicle in the deep water, so that the working time of the underwater electromechanical equipment in the deep sea is further prolonged, and the deep-sea cruising distance and range of the underwater vehicle are expanded.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the invention discloses an ultrasonic-based long-distance high-power underwater wireless charging system which comprises a power supply, a front-end transmitting system, ultrasonic waves, a rear-end receiving system and an electric energy storage device. The power supply is an alternating current power supply or a direct current power supply and is used for providing high-power electric energy for the whole system. The front-end transmitting system converts electric energy into ultrasonic energy which is transmitted in water in a long distance and low loss mode. The rear-end receiving system receives the ultrasonic energy and converts the ultrasonic energy into an electric signal suitable for charging to charge the energy storage device.
The front-end transmitting system mainly comprises a signal generator, a power amplifier and a transmitting-end underwater acoustic transducer. Under the power supply of the external power supply, the signal generator generates an electric signal with a preset frequency, the electric signal is amplified by the power amplifier and then transmitted to the underwater acoustic transducer at the transmitting end, the amplified electric signal is converted into ultrasonic energy in the form of ultrasonic waves, and the ultrasonic energy is transmitted to the rear receiving system by taking water as a transmission medium.
The rear-end receiving system mainly comprises a receiving-end underwater acoustic transducer, a transformer and a rectifier. The receiving end underwater acoustic transducer receives ultrasonic energy in the form of ultrasonic waves, converts electric energy in the form of alternating current signals, processes the electric energy into direct current signals reaching a charging index through the transformer and the rectifier, and the energy storage device receives the direct current signals to charge.
In order to reduce energy dissipation in the wireless charging transmission process and realize long-distance and high-power wireless charging, the underwater acoustic transducer at the transmitting end is a piezoelectric ultrasonic transducer with good single directivity and outputs narrow-beam ultrasonic waves with concentrated energy, and the narrow-beam range of the ultrasonic waves is-3 dB opening angle of 0.1-10 degrees.
In order to enable the output ultrasonic waves to have excellent directivity and carry high energy, so as to realize long-distance and high-power energy transmission of the underwater wireless charging system, the signal generator preferably outputs high-frequency alternating current signals with the frequency of 50kHz-1000kHz, so that the underwater acoustic transducer at the transmitting end is driven to work in the high-frequency range of 50kHz-1000kHz, and the voltage transmission response is more than 160 dB.
In order to realize high-power energy transmission of the underwater wireless charging system, preferably, the underwater acoustic transducer at the transmitting end is an energy transducer with high transmitting acoustic power of 50W or more.
In order to improve the energy conversion efficiency and realize high-power energy transmission of the underwater wireless charging system, preferably, the underwater acoustic transducer at the transmitting end has high electroacoustic efficiency, and the high electroacoustic efficiency is more than 20%.
In order to improve the energy transmission efficiency, reduce the energy dissipation loss and realize the long-distance and high-power energy transmission of the underwater wireless charging system, preferably, the underwater acoustic transducer at the transmitting end is preferably a plurality of transducers arranged in an array to generate a focused ultrasonic energy beam. Further preferably, said transmitting end underwater acoustic transducer is preferably a timed delay transducer or a parametric array transducer or a bowl shaped array of transducers for generating a focused beam of ultrasound energy via a phased array.
In order to effectively deal with the extreme environment of deep sea high hydrostatic pressure and ensure the energy transmission in the deep sea environment, the rear receiving system preferably adopts a structure device with high hydrostatic pressure resistance, corrosion resistance and high salt resistance.
In order to increase the energy receiving area to receive more ultrasonic energy and realize high-power energy transmission of the underwater wireless charging system, preferably, the underwater acoustic transducers at the receiving end are preferably arranged in an array manner to receive more ultrasonic energy.
In order to increase the energy receiving area to receive more ultrasonic energy and maintain the space volume equivalent to that of the underwater vehicle or the electromechanical device in the non-charging state, the receiving end underwater acoustic transducer is preferably assembled with a space unfolding structure to receive more ultrasonic energy, improve the charging efficiency and realize long-distance and high-power wireless charging.
In order to improve energy conversion efficiency and transmission efficiency and realize high-power energy transmission of an underwater wireless charging system, preferably, the receiving-end underwater acoustic transducer is a piezoelectric ultrasonic transducer, and has higher sound pressure sensitivity and high electroacoustic efficiency under the same frequency as the working frequency of the transmitting-end underwater acoustic transducer, and the high electroacoustic efficiency is more than 20%.
Preferably, the transformer and the rectifier are adjusted according to actual conditions, and additional circuit devices are added. Preferably, when the output voltage of the underwater acoustic transducer at the receiving end is lower than the charging voltage standard of the energy storage device, the transformer performs boosting processing on the electric signal; when the output voltage of the underwater acoustic transducer at the receiving end is higher than the charging voltage standard of the energy storage device, the transformer reduces the voltage of the electric signal.
The invention discloses a working method of a remote high-power underwater wireless charging system based on ultrasonic waves, which comprises the following steps: the front-end transmitting system is connected with an external power supply through a wire, and the set signal generator is operated to generate an electric signal with a preset frequency of 50kHz-1000kHz, wherein the preset frequency is the working frequency of the underwater acoustic transducer at the subsequent transmitting end. The electric signal with the preset frequency of 50kHz-1000kHz is transmitted to a power amplifier, and the electric signal is further amplified into a high-power electric signal after passing through the power amplifier, so that the transmitting-end underwater acoustic transducer with the high transmitting sound power of 50W or above is driven to work at high power. The underwater acoustic transducers at the transmitting ends arranged in an array convert high-power electric signals into focused ultrasonic beams to carry high-power ultrasonic energy, and the ultrasonic beams are narrow beams with an opening angle of 0.1-10 degrees of 3dB, so that the energy dissipation in the ultrasonic transmission process is reduced, and long-distance and high-power energy transmission is realized. The underwater acoustic transducer at the transmitting end sends out output ultrasonic waves to the water and transmits the output ultrasonic waves to a rear receiving system at a long distance by using the water as a transmission medium. The rear receiving system receives ultrasonic waves, the receiving end underwater acoustic transducers which are arranged in an array mode and combined with the space unfolding structure convert ultrasonic energy into electric energy, the electric energy is output as alternating current signals, the electric energy is processed by a transformer and a rectifier, the electric energy is converted into direct current signals suitable for charging and output, and the output direct current signals charge the energy storage device.
Has the advantages that:
1. the invention discloses a remote high-power underwater wireless charging system based on ultrasonic waves, which adopts the ultrasonic waves as energy transmission carriers, can realize effective transmission of remote high-power wireless energy in an extreme environment of underwater deep sea high voltage, and avoids the problem that a large amount of energy is consumed by an underwater navigation body or underwater electromechanical equipment in the traditional energy supply due to reciprocating.
2. The invention discloses a remote high-power underwater wireless charging system based on ultrasonic waves, which adopts a high hydrostatic pressure resistant, corrosion resistant and high salt resistant underwater acoustic transducer, can effectively work in a deep sea environment, and provides electric energy supply for electromechanical equipment or an underwater navigation body in the deep sea environment.
3. According to the underwater wireless charging system based on ultrasonic waves, the rear receiving system device adopts a structure with high hydrostatic pressure resistance, corrosion resistance and high salt resistance, so that the effective work of the wireless charging system in a deep sea environment is guaranteed.
4. The invention discloses a remote high-power underwater wireless charging system based on ultrasonic waves, which adopts the ultrasonic waves as energy transmission carriers to realize underwater wireless energy transmission and can solve the problems in non-contact energy transmission based on an electromagnetic field principle.
5. The invention discloses a remote high-power underwater wireless charging system based on ultrasonic waves, which is different from electromagnetic waves, and the ultrasonic form energy transmission technology does not have electromagnetic interference influence on a circuit system of a rear receiving system of an underwater navigation body, so that the normal work of a system circuit is ensured.
6. The invention discloses a remote high-power underwater wireless charging system based on ultrasonic waves, which adopts a piezoelectric transducer as an underwater acoustic transducer at a transmitting end and an underwater acoustic transducer at a receiving end, ensures the efficient transmission and reception of the ultrasonic waves in an underwater environment, and further reduces the energy dissipation in the remote high-power wireless charging transmission process.
7. The invention discloses a remote high-power underwater wireless charging system based on ultrasonic waves, which adopts a transmitting end underwater acoustic transducer with high transmitting acoustic power of 50W or more and high electroacoustic efficiency of 20% or more, and ensures that the underwater wireless charging system transmits energy with high power and high efficiency.
8. The invention discloses an ultrasonic-based long-distance high-power underwater wireless charging system, which is characterized in that narrow-beam-shaped ultrasonic waves with good single directivity and-3 dB opening angle of 0.1-10 degrees output by an underwater acoustic transducer at a transmitting end are used for reducing energy dissipation in a long-distance high-power wireless charging transmission process.
9. The invention discloses a remote high-power underwater wireless charging system based on ultrasonic waves, which adopts an underwater acoustic transducer at a transmitting end arranged in an array to generate focused ultrasonic energy beams, and can realize the beneficial effects of improving the energy transmission efficiency in remote high-power wireless charging and reducing energy dispersion loss.
10. According to the remote high-power underwater wireless charging system based on the ultrasonic waves, the underwater acoustic transducers at the receiving ends are arranged in an array mode, the energy receiving area is increased to receive more ultrasonic energy, and the remote high-power underwater wireless charging system based on the ultrasonic waves has great advantages in improving the energy transmission efficiency in remote high-power wireless charging.
11. According to the remote high-power underwater wireless charging system based on the ultrasonic waves, the underwater acoustic transducer at the receiving end is assembled with the space unfolding structure, the energy receiving area is increased to receive more ultrasonic energy, the energy transmission efficiency is improved under the working state and the small size is maintained under the non-working state, and the remote high-power wireless charging is realized.
Description of the drawings:
FIG. 1 is a schematic diagram of a remote high-power underwater wireless charging system based on ultrasonic waves.
Wherein: 1-a power supply; 2-a front-end transmitting system; 3-ultrasonic wave; 4-a back-end receiving system; 5-energy storage device.
Fig. 2 is a front-end transmitting system of an underwater wireless charging system.
Wherein: 2.1-a signal generator; 2.2-power amplifier; 2.3-transmitting end underwater acoustic transducer
FIG. 3 is a rear-end receiving system of the underwater wireless charging system;
wherein: 4.1-receiving end underwater acoustic transducer; 4.2-transformer; 4.3-rectifier.
The specific implementation mode is as follows:
the present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings that illustrate, by way of illustration only, the basic structure of the invention and, therefore, show only the components that are relevant to the invention.
Example (b):
as shown in fig. 1, the underwater wireless charging system based on ultrasonic waves in the embodiment includes a power supply 1, a front-end transmitting system 2, ultrasonic waves 3, a rear-end receiving system 4, and an electric energy storage device 5. The power supply 1 is an alternating current power supply or a direct current power supply and is used for providing electric energy for the whole system. The front-end transmitting system 2 converts the electric energy into ultrasonic wave 3 energy which is transmitted in water at a long distance with low loss. The rear receiving system 4 receives the ultrasonic wave 3 energy and converts the ultrasonic wave 3 energy into an electric signal suitable for charging, so as to charge the energy storage device 5.
As shown in fig. 2, the front-end transmitting system 2 is mainly composed of a signal generator 2.1, a power amplifier 2.2, and a transmitting-end underwater acoustic transducer 2.3. Under the power supply of the external power supply 1, the signal generator 2.1 generates an electric signal with a predetermined frequency, the electric signal is amplified by the power amplifier 2.2 and then transmitted to the underwater acoustic transducer 2.3 at the transmitting end, and the amplified electric signal is converted into ultrasonic energy in the form of ultrasonic waves and is transmitted to the rear receiving system 4 by taking water as a transmission medium.
As shown in fig. 3, the rear-end receiving system 4 is mainly composed of a receiving-end underwater acoustic transducer 4.1, a transformer 4.2 and a rectifier 4.3. The underwater acoustic transducer 4.1 at the receiving end receives ultrasonic energy in the form of ultrasonic waves, converts the ultrasonic energy into electric energy in the form of alternating current signals, and processes the electric energy into direct current signals reaching the charging index through the transformer 4.2, the rectifier 4.3 and the like, and the energy storage device 5 receives the direct current signals for charging.
In order to reduce energy dissipation in the wireless charging transmission process and realize long-distance and high-power wireless charging, the transmitting-end underwater acoustic transducer 2.3 is a piezoelectric ultrasonic transducer with good single directivity, narrow-beam ultrasonic waves 3 with concentrated energy are output, and the narrow-beam range of the ultrasonic waves 3 is 3 degrees of minus 3dB opening angle.
In order to enable the output ultrasonic wave 3 to have excellent directivity and carry high energy, so that the underwater wireless charging system can transmit energy in a long distance and high power mode, the signal generator 2.1 outputs a high-frequency alternating current signal with the frequency of 100kHz, the underwater acoustic transducer 2.3 at the transmitting end is driven to work in the high-frequency range of 100kHz, and the voltage transmitting response is 180 dB.
In order to realize high-power energy transmission of the underwater wireless charging system, the underwater acoustic transducer 2.3 at the transmitting end selects an energy transducer with high transmitting acoustic power, and the high transmitting acoustic power is 100W.
In order to improve the energy conversion efficiency and realize the high-power energy transmission of the underwater wireless charging system, the underwater acoustic transducer 2.3 at the transmitting end has high electroacoustic efficiency, and the high electroacoustic efficiency is 40%.
In order to improve the energy transmission efficiency, reduce the energy dispersion loss and realize the long-distance and high-power energy transmission of the underwater wireless charging system, the underwater acoustic transducer 2.3 at the transmitting end is provided with a plurality of transducers which are arranged in an array to generate a focused ultrasonic energy beam. The transmitting underwater acoustic transducer 2.3 is a parametric array transducer in order to generate a focused beam of ultrasound energy via a phased array.
In order to effectively deal with the extreme environment of deep sea high hydrostatic pressure and ensure the energy transmission in the deep sea environment, the rear receiving system 4 adopts a rubber skin dot matrix sandwich structure device to ensure high hydrostatic pressure resistance, corrosion resistance and high salt resistance.
In order to increase the energy receiving area to receive more ultrasonic energy and realize high-power energy transmission of the underwater wireless charging system, the underwater acoustic transducers at the receiving ends are arranged in an array mode 4.1 to receive more ultrasonic energy.
In order to increase the energy receiving area to receive more ultrasonic energy and keep the space volume equivalent to that of an underwater vehicle or electromechanical equipment in a non-charging state, the underwater acoustic transducer 4.1 at the receiving end is assembled with a space unfolding structure to receive more ultrasonic energy, improve the charging efficiency and realize long-distance and high-power wireless charging.
In order to improve the energy conversion efficiency and the transmission efficiency and realize the high-power energy transmission of the underwater wireless charging system, the receiving end underwater acoustic transducer 4.1 is a piezoelectric ultrasonic transducer, has high sound pressure sensitivity and high electroacoustic efficiency under the same frequency with the working frequency of the transmitting end underwater acoustic transducer 2.3, and has the high electroacoustic efficiency of 40 percent.
The transformer 4.2 and the rectifier 4.3 are adjusted according to actual conditions and additional circuit devices are added. When the output voltage of the underwater acoustic transducer 4.1 at the receiving end is lower than the charging voltage standard of the energy storage device 5, the transformer 4.2 carries out boosting treatment on the electric signal; when the output voltage of the underwater acoustic transducer 4.1 at the receiving end is higher than the charging voltage standard of the energy storage device 5, the transformer 4.2 reduces the voltage of the electric signal.
The working method of the ultrasonic-based long-distance high-power underwater wireless charging system disclosed by the embodiment comprises the following steps: the front-end transmitting system 2 is connected with the external power supply 1 through a wire, and the set signal generator 2.1 is operated to generate an electric signal with a predetermined frequency of 100kHz, which is the operating frequency of the underwater acoustic transducer 2.3 of the subsequent transmitting end. The electric signal with the preset frequency of 100kHz is transmitted to the power amplifier 2.2, and the electric signal is further amplified into a high-power electric signal after passing through the power amplifier 2.2, so that the transmitting-end underwater acoustic transducer 2.3 with the high transmitting sound power of 100W is driven to work with high power. The underwater acoustic transducers 2.3 at the transmitting ends arranged in an array convert high-power electric signals into focused ultrasonic 3 beams to carry high-power ultrasonic energy, and the ultrasonic beams are narrow beams with an opening angle of 3 degrees of-3 dB, so that the energy dissipation in the ultrasonic transmission process is reduced, and long-distance and high-power energy transmission is realized. The transmitting end underwater acoustic transducer 2.3 sends out output ultrasonic waves 3 to the water and transmits the ultrasonic waves to a rear end receiving system 4 at a long distance by using the water as a transmission medium. The rear receiving system 4 receives the ultrasonic waves 3, the receiving end underwater acoustic transducers 4.1 which are arranged in an array mode and combined with the space unfolding structure convert ultrasonic energy into electric energy, the electric energy is output as alternating current signals, the electric energy is processed by the transformer 4.2 and the rectifier 4.3 and converted into direct current signals suitable for charging and output, and the output direct current signals charge the energy storage device 5.
The above detailed description is provided for the purpose of illustrating the invention, and it should be understood that the present invention is only exemplary and is not intended to limit the scope of the invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the invention should be included in the scope of the invention.
Claims (10)
1. The utility model provides a remote high power is wireless charging system under water based on ultrasonic wave which characterized in that: comprises a power supply (1), a front end transmitting system (2), ultrasonic waves (3), a rear end receiving system (4) and an electric energy storage device (5); the power supply (1) is an alternating current power supply or a direct current power supply and is used for providing high-power electric energy for the whole set of system; the front-end transmitting system (2) converts electric energy into ultrasonic wave (3) energy which is transmitted in water in a long distance and low loss manner; the rear-end receiving system (4) receives the energy of the ultrasonic waves (3) and converts the energy into an electric signal suitable for charging to charge the energy storage device (5);
the front-end transmitting system (2) mainly comprises a signal generator (2.1), a power amplifier (2.2) and a transmitting-end underwater acoustic transducer (2.3); under the power supply of the external power supply (1), the signal generator (2.1) generates an electric signal with a preset frequency, the electric signal is amplified by the power amplifier (2.2) and then transmitted to the underwater acoustic transducer (2.3) at the transmitting end, the amplified electric signal is converted into ultrasonic energy in the form of ultrasonic waves, and the ultrasonic energy is transmitted to the rear-end receiving system (4) by taking water as a transmission medium;
the rear-end receiving system (4) mainly comprises a receiving-end underwater acoustic transducer (4.1), a transformer (4.2) and a rectifier (4.3); the receiving end underwater acoustic transducer (4.1) receives ultrasonic energy in the form of ultrasonic waves, converts the ultrasonic energy into electric energy in the form of alternating current signals, processes the electric energy into direct current signals reaching a charging index through the transformer (4.2) and the rectifier (4.3), and the energy storage device (5) receives the direct current signals to charge;
in order to reduce energy dissipation in the wireless charging transmission process and realize long-distance and high-power wireless charging, the transmitting-end underwater acoustic transducer (2.3) is a piezoelectric ultrasonic transducer with good single directivity and outputs narrow-beam ultrasonic waves (3) with concentrated energy, and the narrow-beam range of the ultrasonic waves (3) is-3 dB opening angle of 0.1-10 degrees.
2. An ultrasonic-based long-range high-power underwater wireless charging system as claimed in claim 1, wherein: in order to enable the output ultrasonic waves (3) to have excellent directivity and carry high energy, so as to realize the long-distance and high-power energy transmission of an underwater wireless charging system, the signal generator (2.1) outputs high-frequency alternating current signals, the frequency is 50kHz-1000kHz, so that the underwater acoustic transducer (2.3) at the transmitting end is driven to work in the high-frequency range of 50kHz-1000kHz, and the voltage transmitting response is more than 160 dB.
3. An ultrasonic-based long-range high-power underwater wireless charging system as claimed in claim 2, wherein: in order to realize high-power energy transmission of an underwater wireless charging system, the underwater acoustic transducer (2.3) at the transmitting end selects an energy transducer with high transmitting acoustic power, and the high transmitting acoustic power is 50W or more;
in order to improve the energy conversion efficiency and realize the high-power energy transmission of an underwater wireless charging system, the underwater acoustic transducer (2.3) at the transmitting end has high electroacoustic efficiency which is more than 20%;
in order to effectively deal with the extreme environment of deep sea high hydrostatic pressure and ensure the energy transmission in the deep sea environment, the rear end receiving system (4) selects a structural device with high hydrostatic pressure resistance, corrosion resistance and high salt resistance.
4. An ultrasonic-based long-range high-power underwater wireless charging system as claimed in claim 3, wherein: in order to improve the energy transmission efficiency, reduce the energy dispersion loss and realize the long-distance and high-power energy transmission of the underwater wireless charging system, the underwater acoustic transducer (2.3) at the transmitting end is provided with a plurality of transducers arranged in an array to generate a focused ultrasonic energy beam.
5. An ultrasonic-based long-distance high-power underwater wireless charging system as claimed in claim 4, wherein: to generate a focused beam of ultrasound energy via a phased array, the transmit-end underwater acoustic transducer (2.3) is selected with a delay transducer or parametric array transducer or bowl-shaped transducer array.
6. An ultrasonic-based long-range high-power underwater wireless charging system as claimed in claim 5, wherein: in order to increase the energy receiving area to receive more ultrasonic energy and realize high-power energy transmission of the underwater wireless charging system, the underwater acoustic transducers (4.1) at the receiving ends are arranged in an array mode to receive more ultrasonic energy.
7. An ultrasonic-based long-range high-power underwater wireless charging system as claimed in claim 6, wherein: in order to increase the energy receiving area to receive more ultrasonic energy and keep the space volume equivalent to that of an underwater navigation body or electromechanical equipment in a non-charging state, the underwater acoustic transducer (4.1) at the receiving end is assembled with a space unfolding structure to receive more ultrasonic energy, improve the charging efficiency and realize long-distance and high-power wireless charging.
8. An ultrasonic-based long-range high-power underwater wireless charging system as claimed in claim 7, wherein: in order to improve the energy conversion efficiency and the transmission efficiency and realize high-power energy transmission of an underwater wireless charging system, the receiving end underwater acoustic transducer (4.1) is a piezoelectric ultrasonic transducer, has higher sound pressure sensitivity and high electroacoustic efficiency under the same frequency with the working frequency of the transmitting end underwater acoustic transducer (2.3), and the high electroacoustic efficiency is more than 20%.
9. An ultrasonic-based long-range high-power underwater wireless charging system as claimed in claim 8, wherein: the transformer (4.2) and the rectifier (4.3) are adjusted according to actual conditions and additional circuit devices are added; when the output voltage of the underwater acoustic transducer (4.1) at the receiving end is lower than the charging voltage standard of the energy storage device (5), the transformer (4.2) performs boosting processing on the electric signal; when the output voltage of the underwater acoustic transducer (4.1) at the receiving end is higher than the charging voltage standard of the energy storage device (5), the transformer (4.2) reduces the voltage of the electric signal.
10. An ultrasonic-based long-range high-power underwater wireless charging system as claimed in claim 1, 2, 3, 4, 5, 6, 7, 8 or 9, characterized in that: the working method is that the front-end transmitting system (2) is connected with an external power supply (1) through a wire, and a set signal generator (2.1) is operated to generate an electric signal with a preset frequency of 50kHz-1000kHz, wherein the preset frequency is the working frequency of the underwater acoustic transducer (2.3) at the subsequent transmitting end; the electric signal with the preset frequency of 50kHz-1000kHz is transmitted to a power amplifier (2.2), and the electric signal is further amplified into a high-power electric signal after passing through the power amplifier (2.2), so that a transmitting end underwater acoustic transducer (2.3) with high transmitting sound power of 50W or above is driven to work in a high-power mode; the underwater acoustic transducers (2.3) at the transmitting ends arranged in an array convert high-power electric signals into focused ultrasonic wave (3) beams to carry high-power ultrasonic energy, and the ultrasonic wave beams are narrow beams with 3dB opening angles of 0.1-10 degrees, so that the energy dissipation in the ultrasonic transmission process is reduced, and long-distance and high-power energy transmission is realized; the transmitting end underwater acoustic transducer (2.3) sends out output ultrasonic waves (3) to the water and transmits the ultrasonic waves to a rear end receiving system (4) at a long distance by taking the water as a transmission medium; the rear receiving system (4) receives the ultrasonic waves (3), the receiving end underwater acoustic transducers (4.1) which are arranged in an array mode and combined with the space unfolding structure convert the ultrasonic energy into electric energy, the electric energy is output as alternating current signals, the electric energy is processed by a transformer (4.2) and a rectifier (4.3) and converted into direct current signals suitable for charging and output, and the output direct current signals charge the energy storage device (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911005057.XA CN110707791B (en) | 2019-10-22 | 2019-10-22 | Ultrasonic wave-based remote high-power underwater wireless charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911005057.XA CN110707791B (en) | 2019-10-22 | 2019-10-22 | Ultrasonic wave-based remote high-power underwater wireless charging system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110707791A true CN110707791A (en) | 2020-01-17 |
| CN110707791B CN110707791B (en) | 2022-06-17 |
Family
ID=69200840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911005057.XA Active CN110707791B (en) | 2019-10-22 | 2019-10-22 | Ultrasonic wave-based remote high-power underwater wireless charging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110707791B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112152308A (en) * | 2020-09-04 | 2020-12-29 | 北京信息科技大学 | Underwater wireless charging method and device covering full sea depth based on sound waves |
| CN112217295A (en) * | 2020-09-27 | 2021-01-12 | 中国人民解放军海军工程大学 | Underwater wireless ultrasonic electric energy transmission device |
| CN114160397A (en) * | 2021-12-06 | 2022-03-11 | 西安交通大学 | Underwater array type high-power ultrasonic wireless energy transfer system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006047988A1 (en) * | 2004-11-02 | 2006-05-11 | Philipps-Universität Marburg | Anisometric particles in the form of nanofibers/mesofibers, nanopipes/mesopipes, nanocables/mesocables, nanobands/mesobands, and the curved or branched variations thereof |
| CN102684276A (en) * | 2012-04-01 | 2012-09-19 | 北京大学 | Underwater non-contact power supply method and device |
| CN204992728U (en) * | 2015-10-13 | 2016-01-20 | 盐城工学院 | Ultrasonic wave wireless charging device |
| CN107947387A (en) * | 2017-12-25 | 2018-04-20 | 南京邮电大学 | A kind of energy supplementing system of the underwater Internet of things node based on ultrasonic wave |
-
2019
- 2019-10-22 CN CN201911005057.XA patent/CN110707791B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006047988A1 (en) * | 2004-11-02 | 2006-05-11 | Philipps-Universität Marburg | Anisometric particles in the form of nanofibers/mesofibers, nanopipes/mesopipes, nanocables/mesocables, nanobands/mesobands, and the curved or branched variations thereof |
| CN102684276A (en) * | 2012-04-01 | 2012-09-19 | 北京大学 | Underwater non-contact power supply method and device |
| CN204992728U (en) * | 2015-10-13 | 2016-01-20 | 盐城工学院 | Ultrasonic wave wireless charging device |
| CN107947387A (en) * | 2017-12-25 | 2018-04-20 | 南京邮电大学 | A kind of energy supplementing system of the underwater Internet of things node based on ultrasonic wave |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112152308A (en) * | 2020-09-04 | 2020-12-29 | 北京信息科技大学 | Underwater wireless charging method and device covering full sea depth based on sound waves |
| WO2022048059A1 (en) * | 2020-09-04 | 2022-03-10 | 北京信息科技大学 | Acoustic wave-based full-sea-depth-covering undersea wireless charging method and device |
| CN112152308B (en) * | 2020-09-04 | 2022-12-09 | 北京信息科技大学 | Underwater wireless charging method and device covering full sea depth based on sound waves |
| CN112217295A (en) * | 2020-09-27 | 2021-01-12 | 中国人民解放军海军工程大学 | Underwater wireless ultrasonic electric energy transmission device |
| CN112217295B (en) * | 2020-09-27 | 2022-03-15 | 中国人民解放军海军工程大学 | Underwater wireless ultrasonic electric energy transmission device |
| CN114160397A (en) * | 2021-12-06 | 2022-03-11 | 西安交通大学 | Underwater array type high-power ultrasonic wireless energy transfer system |
| CN114160397B (en) * | 2021-12-06 | 2022-06-03 | 西安交通大学 | Underwater array type high-power ultrasonic wireless energy transfer system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110707791B (en) | 2022-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110707791B (en) | Ultrasonic wave-based remote high-power underwater wireless charging system | |
| CN102684276B (en) | Underwater non-contact power supply method and device | |
| CN101254499B (en) | Big opening angle stack wafer transmitting transducer | |
| CN102508287B (en) | Underwater object detection device | |
| CN102267542A (en) | Non-contact electric energy supply and data transmission device for underwater sensor of buoy system | |
| CN103616693A (en) | Fish finding sonar and sonar echo signal processing method | |
| CN107947387B (en) | Energy supply system of underwater Internet of things node based on ultrasonic waves | |
| CN105356950B (en) | Hydrology binary channels underwater communications system | |
| CN108565991A (en) | A kind of ultrasonic wave charging unit applied to underwater measurement devices | |
| CN103557843B (en) | Compact underwater microtopography measurement apparatus | |
| CN109921859A (en) | A kind of underwater emission sound source with answering | |
| CN206413162U (en) | A kind of underwater sound communication transducer | |
| WO2022048059A1 (en) | Acoustic wave-based full-sea-depth-covering undersea wireless charging method and device | |
| CN113904735A (en) | Cross-medium networking communication equipment | |
| CN210954336U (en) | Fish detector | |
| CN108680922B (en) | Fish finder adopting linear frequency modulation technology | |
| CN112362153A (en) | Low-frequency active underwater sound detection system and method based on UUV platform | |
| CN208140931U (en) | A kind of GPS automatic cruising intelligence fish deteclor | |
| CN208334640U (en) | A kind of fish finding ball | |
| CN210119560U (en) | Novel surface ship monitoring radar front end | |
| CN217112708U (en) | High-performance underwater sonar receiving and transmitting system | |
| CN107678031B (en) | Underwater positioning module with identification information | |
| CN110579767A (en) | fish detector | |
| CN102793566B (en) | System and method for generating acoustic radiation force | |
| CN218031249U (en) | Phased array acoustic Doppler current profiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |