39results about How to "Stable energy output" patented technology

The invention discloses a multi-axial point absorption type wave energy generation device. A rack is embedded on one side of a first swing, a first shaft provided with a gear is mounted on two sides of the first swing, the rack and the gear are engaged, a float is fixedly connected at the lower end of the rack, and the first shaft is connected to a first generator through a gearbox; a second swing of a square frame sleeves outside the first swing, a second shaft is rotatably connected to one side of a second swing, a third shaft is rotatably connected to the other side of the second swing, and the second shaft is connected to a second generator through a second gearbox; a base of the square frame sleeves outside the second swing, a fourth shaft is rotatably connected to one side of the base, and a fifth shaft is rotatably connected to the other side of the base; the fourth shaft is connected to a third generator through a third gearbox. By the aid of the multi-axial point absorption type wave energy generation device, wave energy of multiple waves can be directionally captured simultaneously, once energy capture of the device is increased greatly, system converting efficiency is improved greatly, energy output of the device can be more stable, and generating quality can be improved.

One embodiment of the invention provides a method for matching lithium ion power batteries for automobiles. The method comprises the following steps: obtaining a discharge capacity C value and an energy Q value of a battery to be screened; charging the battery to a first SOC value, and obtaining a voltage V0 of the current battery; discharging the battery to obtain the terminal voltage of the current battery, and obtaining DC internal resistance R; storing the battery at normal temperature for T1 hours, obtaining a battery voltage V2, and obtaining a voltage difference value delta V; finally determining whether the battery to be screened conforms to the demand or not according to one or more of the screening parameters: C, Q, R, V0 and delta V, for forming a power battery pack. The battery pack formed by batteries screened by the method for matching lithium ion power batteries for automobiles provided by the invention has relatively long service life and relatively stable energy output.

A sludge pretreatment method and a method of producing an acid by anaerobic fermentation of sludge are provided. The sludge pretreatment method includes: adding a persulfate into sludge, and mixing well to obtain mixed sludge; ultrasonically treating the mixed sludge. Further, the invention provides the method of producing an acid by anaerobic fermentation of sludge; after sludge is subjected theaforementioned pretreatment, the sludge is subjected to anaerobic fermentation. sludge floc disintegration is enhanced by advanced oxidation in combination with ultrasonic treatment, sludge disintegration degree is greatly increased, sludge biodegradability is improved, rich substrate is provided for subsequent hydrolysis stage of anaerobic fermentation, and the yield of volatile acids in the subsequent anaerobic fermentation of sludge is greatly increased.

Natural water evaporation is a buffered process with huge energy absorption from solar & its derivative wind energy. When large surface shallow pool filled with aqueous solution is exposed under sky, the most portion of natural energy will be spent for pulling water out of water molecules cluster, yet there is still some energy for splitting water from solutes, then the concentration increases, in turn, despite the main former energy is sacrificed, but the stronger solution can redeem most the latter energy during a process of Pressure Retarded Osmosis (PRO), via membranes separating solution & available water in situ, then the redeemed energy serves as utilizable power output, with the assistance of key units or components: the osmotic to hydraulic pressure transformer, the hydraulic oil current rectification fluidic circuit & a hydraulic motor. With minor adaptation, same mechanism can also be embodied as: mobile osmosis engine, osmosis vehicle battery, yard synergy-osmosis power system, Grid electricity and miscellaneous renewable energy to osmosis energy storage, even desert to oasis remediation with seawater intake solar-via-osmosis powerplant & parasitic freshwater factory.

The present invention relates to a nuclear fusion reaction system which comprises the following components: a reaction container; a fuel injector which provides at least one thermonuclear fuel; and at least one pair of plasma generator which is adjacent to the reaction container and is used for forming plasma beams that are oriented to a gathering area in the reaction container from the thermonuclear fuel supplied from the fuel injector through applying current and pinching the plasma beams to a lightening, wherein the plasma generator causes the current to drive the lightening to impact in the gathering area for causing fusion reaction.

The invention discloses a distributive cold and hot electricity continuous supply system based on condensed and frequency divided photovoltaic photothermal and double-combined Rankine cycle technology. The system comprises a cylinder jacket water afterheat recovery subsystem, a double-combined Rankine cycle afterheat recovery and power generation subsystem, a condensed and frequency divided photovoltaic photothermal device, a heat pump circular heat supply / cold supply subsystem, an AC / DC inverter, a controller, a DC / AC inverter and an accumulator; natural gas is used for combustion in an internal combustion engine to generate electric power; high-temperature smoke afterheat and high-temperature cylinder jacket water afterheat generated by the internal combustion engine are recovered for power generation; and one part of sunlight is used for photovoltaic cell power generation through condensation and frequency division technologies. The system is high in energy utilization efficiency, reasonable in energy utilization mode and not limited by regions, weathers and the time change, can realize individual energy outputting according to user demands when realizing stable energy outputting, is compact in structure and easy to realize modular installation, realizes combination of new energy and traditional energy, and achieves the advantages of energy conservation, emission reduction and environmental protection.

The invention provides a postoperative rehabilitation apparatus for cardiology. The postoperative rehabilitation apparatus comprises a traveling mechanism, a bearing mechanism arranged on the traveling mechanism, a backrest mechanism arranged on the bearing mechanism and located at the back, a modular massage mechanism arranged on the bearing mechanism and located in the front part, a protective mechanism arranged on the bearing mechanism, a leg supporting mechanism arranged on the bearing mechanism and matched with the modular massage mechanism and a control mechanism arranged on the traveling mechanism and used for controlling the traveling mechanism, the bearing mechanism, the backrest mechanism, the modular massage mechanism, the protective mechanism and the leg supporting mechanism. Through cooperative control of the control mechanism, the postoperative rehabilitation apparatus is comfortable in sitting, massage therapy can be performed to patients, fatigue of the patients is alleviated, working pressure of medical workers is greatly reduced, and safety of the patients on the postoperative rehabilitation apparatus can be guaranteed.

The invention provides a severe patient rehabilitation nursing device. The device comprises a walking mechanism, a bearing mechanism arranged on the walking mechanism, a backrest mechanism arranged onthe bearing mechanism and located at the rear portion, a modularized massaging mechanism arranged on the bearing mechanism and located at the front portion, a leg supporting mechanism arranged on thebearing mechanism and matched with the modularized massaging mechanism and a control mechanism arranged on the walking mechanism and used for controlling the walking mechanism, the bearing mechanism,the backrest mechanism, the modularized massaging mechanism and the leg supporting mechanism; due to cooperative control of the control mechanism, riding is comfort, the patient can be subjected to massaging and physical therapy, the fatigue of the patient is relieved, working pressure of medical workers is greatly relieved, and the balance can be independently adjusted.

The invention discloses a vehicle energy saving system combining temperature difference power generation and a vortex tube principle. The vehicle energy saving system comprises a gas supply device, a gas storage tank, a vortex tube, a first heat exchanger, a second gas pump, a second heat exchanger and a temperature difference power generation system. The gas supply device supplies gas to the gas storage tank. The input end of the vortex tube is connected with the gas storage tank. A cold gas output pipe of the vortex tube is divided into two branches to be connected with the first heat exchanger and the second gas pump correspondingly. A hot gas output pipe of the vortex tube is divided into two branches to be connected with the first heat exchanger and the second gas pump correspondingly. A stop valve is arranged on each branch. An output pipe of the first heat exchanger and an output pipe of the second gas pump are connected with the input end of the second heat exchanger together. The output end of the second heat exchanger is connected with the gas storage tank. A temperature difference power generation system supplies power to the gas supply device and the second gas pump. According to the vehicle energy saving system, heat in vehicle tail gas is converted into electric energy through the temperature difference power generation system, and noise and temperature of vehicle tail gas emission can be lowered, and because an air conditioner system based on the vortex tube principle is simple in structure, low in power consumption and can be completely self-sufficient, the oil consumption is lowered, and energy conservation and environment protection are achieved.

A lapping full-penetration laser welding method for stainless steel heat exchange plates includes the following steps of pre-welding preparation, connecting method adoption, setting of welding parameters, and protective gas adoption. A continuous laser is adopted for full penetration of the heat exchange plates of the equal thickness. The rule of influence of different welding parameters on the depth of penetration, width of penetration and mechanical property of full-penetration joints and on the oxidation stain of the weld surface is obtained by the orthogonal experimental method through optimization, the widths of penetration of the upper interface and the lower interface are increased by a larger positive off-focus value, and the quality of welded joints is improved by limiting the depth of penetration of the welded heat exchange plates at the lower layer.

The invention belongs to the technical field of an energy conversion and storage device, and discloses a perovskite solar cell. The perovskite solar cell includes a flexible conductive substrate, a photoanode, a perovskite layer and a first carbon counter electrode layer, wherein the photoanode is a CdS nanometer rod array structure, and is arranged on the upper surface of the flexible conductive substrate and is provided with a pore structure; the a light absorption layer is a CsPbBr3 inorganic perovskite layer which is embedded into the pore structure of the photoanode so as to closely contact the photoanode; and the first carbon counter electrode layer is paved on the upper surface of an ITO conductive layer and the upper surface of the light absorption layer, and is formed through screen printing and film forming. As the perovskite solar cell utilizes the full inorganic perovskite as the light absorption layer and the full inorganic perovskite has higher humidity and heat stability, preparation of cell can be performed in the air. Therefore, the requirement for production equipment is reduced; large scale of cell production becomes implementable; the stability of the prepared cell is high; and the performance of cell attenuates more slowly.

The invention discloses an elastic buffering hydraulic cylinder, which comprises a piston rod, a cylinder body and a piston, wherein the piston rod has a hollow structure, and a gas cavity is formed in the piston rod; an oil cavity is formed in the cylinder body; high-pressure nitrogen is filled in the gas cavity, and hydraulic oil is filled in the oil cavity; the piston is arranged in the piston rod, and the gas cavity and the oil cavity are partitioned through the piston; an O-shaped sealing ring is arranged between the piston and the inner wall of the piston rod, and a connecting device is also arranged between the piston rod and the cylinder body; a fixed cover is arranged on the outer part of the cylinder body, and a cavity is formed in the fixed cover; a movable cover is arranged on the outer part of the piston rod, the movable cover is a metallic corrugated pipe device, a groove is formed in the cavity of the fixed cover, and the movable cover is embedded into the fixed cover through the groove; and a labyrinth passage is formed between the connecting device and the inner wall of the cylinder body, and a plurality of steel balls for separating the hydraulic oil from the gas are arranged in the labyrinth passage. The protective cover is arranged outside the elastic buffering hydraulic cylinder, and an internal medium is safe and leak-free, so that effective elastic buffering is produced in a compression travel.

An energy storing device is disclosed. In the energy storing device of the present invention, energy from an energy generating unit is stored in the form of spring torsion and then is output steadily. The energy storing device of the present invention includes a plurality of cog-wheels, a plurality of torsion magnitude limiting units, a plurality of single-directional input bearings, a plurality of energy storing units and a plurality of speed enhancing cog-wheels. Each of the energy storing units includes at least two end rotational disc portions, which are connected with each other co-axially. A leaf spring unit is provided between each pair of rotational disc portions and one end of the leaf spring unit is bent in an opposite direction. In addition, the energy storing units may be connected in series or in parallel to increase the efficiencies in energy storage and energy output.

An energy storing device is disclosed. In the energy storing device of the present invention, energy from an energy generating unit is stored in the form of spring torsion and then is output steadily. The energy storing device of the present invention includes a plurality of cog-wheels, a plurality of torsion magnitude limiting units, a plurality of single-directional input bearings, a plurality of energy storing units and a plurality of speed enhancing cog-wheels. Each of the energy storing units includes at least two end rotational disc portions, which are connected with each other co-axially. A leaf spring unit is provided between each pair of rotational disc portions and one end of the leaf spring unit is bent in an opposite direction. In addition, the energy storing units may be connected in series or in parallel to increase the efficiencies in energy storage and energy output.

The invention relates to a packaging material for phase change materials, in particular to a natural plant fiber tube used for packaging various phase change materials which have phase change thermoregulation function within a wide temperature range and a method for packaging the phase change materials through the packaging material. The invention takes the cheap and easily obtained natural fibertube, that is, kawo kawo fibers as the packaging material for the various phase change materials. The phase change materials are packaged in the natural kawo kawo fiber tube which has an external walland two ends sealed by polymers. The kawo kawo fibers which are taken as phase change energy storage materials are more advantageous than any other material; in addition, the kawo kawo fibers basically have no thermal degradation at a temperature of 250 DEG C due to good thermal stability. The high percentage of hollow volume of the kawo kawo fiber tube brings about greater energy storage density, an enclosed structure brings about stable energy output, a superfine micron-sized tubular structure brings about rapid heat transfer, and the special lipophilic and hydrophobic wettability can be used in the machining process.

The invention provides a power self-generating ocean buoy. The power self-generating ocean buoy comprises a buoy body, wherein a power generation device body is installed at the bottom end of the buoybody; an automatic rotor is arranged at the upper end of the power generation device body, a transmission module is arranged at the lower end of the automatic rotor, and a clockwork device is connected to the lower end of the transmission module; a stable energy release module is arranged at one side of the clockwork device, and a generator is connected to the other side of the clockwork device;and a battery is connected with the generator. According to the power self-generating ocean buoy, an power generating part uses a structure of a mechanical watch for reference to drive a gear transmission mechanism by using the swing of the automatic rotor to realize full wave output and carry out clockwork energy storage; the whole structure is compact, no moving part is in water, the typhoon resistance is facilitated, and the damage rate is reduced; and an escapement mechanism can output stably and convert unstable wave energy into stable energy output to obtain the best power generation efficiency.

The invention discloses a focused ultrasonic firming and wrinkle-reducing beauty apparatus capable of realizing accurate positioning. The beauty apparatus includes an analysis host, an ultrasonic treatment head, a support rod and a fixed seat, wherein the ultrasonic treatment head is fixed on the fixed seat, the bottom of the fixed seat is welded to the top of the support rod, the ultrasonic treatment head includes an installation shell, the installation shell consists of two half shell assemblies with oppositely arranged openings, an installation cavity is formed between the two half shell assemblies, and a water inlet end is welded to the top of one end of the installation shell away from the analysis host. In the focused ultrasonic firming and wrinkle-reducing beauty apparatus provided by the invention, a synchronous movement effect of a concave ultrasonic transducer along a height direction and a width direction of the installation shell enables the acting area to be larger and an effect to be better, the ultrasonic treatment head is more accurate in positioning, ultrasonic waves have high penetrating power and can go deep into cells, temperature most suitable for effective of protein can be maintained, thereby achieving the purposes of causing no trauma, being safe, effectively stimulating collagen regeneration and skin tightening, removing wrinkles and eliminating redundant fat.

The invention belongs to the technical field of heat storage materials, and particularly discloses an inorganic salt-ceramic based composite heat storage material. The heat storage material is prepared from the following components in parts by weight: 24-32 parts of K2CO3, 20-28 parts of CaCO3, 6-10 parts of BeO, 10-16 parts of Si3N4 and 13-18 parts of SiC. The heat storage material has the advantage that selection and proportioning of raw materials are scientific and reasonable, a sintered material has an ultra-microporous structure, thermal and mechanical properties of the material meet requirements of industrial applications: the melting temperature is 1200-1260 DEG C, the total heat storage capacity is 170-190 J / g, and the highest use temperature of the material reaches 1300-1400 DEG C.

The invention relates to the technical field of ultrasonic waves, and discloses an ultrasonic cutting device and an ultrasonic cutting method. The ultrasonic cutting device comprises an ultrasonic cutting knife, a first transducer, a second transducer, a first amplitude modulator and a second amplitude modulator; the ultrasonic cutting knife is used for cutting a workpiece; the first transducer is connected onto the ultrasonic cutting knife, and is used for driving the ultrasonic cutting knife to vibrate. the second transducer is connected onto the ultrasonic cutting knife, and is used for driving the ultrasonic cutting knife to vibrate; the second transducer and the first transducer are in-phase and are located at the same side of the ultrasonic cutting knife; the first amplitude modulator is used for adjusting the output amplitude of the first transducer; and the second amplitude modulator is used for adjusting the output amplitude of the second transducer. The ultrasonic cutting device is small in cutting resistance, long in service life, high in speed and stable in quality; no flashes, burrs or metal dust is not generated; no damage is brought to the surface appearance of the workpiece; a wider pole piece can be cut; and energy output of the double transducers is stable.

The invention provides a postoperative care device for a patient of a neurosurgery department. The postoperative care device comprises a walking mechanism, a loading mechanism, a backrest mechanism, amodularized massage mechanism, a leg support mechanism, a leg care mechanism and a control mechanism, wherein the loading mechanism is arranged on the walking mechanism; the backrest mechanism is arranged on the loading mechanism and is located on the rear part; the modularized massage mechanism is arranged on the loading mechanism and is located on the front part; the leg support mechanism is arranged on the loading mechanism and is matched with the modularized massage mechanism; the leg care mechanism is arranged on the loading mechanism and is matched with the modularized massage mechanism; the control mechanism is arranged on the walking mechanism and is used for controlling the walking mechanism, the loading mechanism, the backrest mechanism, the modularized massage mechanism, the leg support mechanism and the leg care mechanism. Under the cooperative control of the control mechanism, the patient can comfortably sit on the postoperative care device, the legs of the patient can bemassaged, the feet of the patient can be cared, the body of the patient is relaxed so that the recovery is quickened, the local foot part is prevented from catching cold and the working pressure of the medical workers can be greatly relieved.

The invention discloses a multi-axial point absorption type wave energy generation device. A rack is embedded on one side of a first swing, a first shaft provided with a gear is mounted on two sides of the first swing, the rack and the gear are engaged, a float is fixedly connected at the lower end of the rack, and the first shaft is connected to a first generator through a gearbox; a second swing of a square frame sleeves outside the first swing, a second shaft is rotatably connected to one side of a second swing, a third shaft is rotatably connected to the other side of the second swing, and the second shaft is connected to a second generator through a second gearbox; a base of the square frame sleeves outside the second swing, a fourth shaft is rotatably connected to one side of the base, and a fifth shaft is rotatably connected to the other side of the base; the fourth shaft is connected to a third generator through a third gearbox. By the aid of the multi-axial point absorption type wave energy generation device, wave energy of multiple waves can be directionally captured simultaneously, once energy capture of the device is increased greatly, system converting efficiency is improved greatly, energy output of the device can be more stable, and generating quality can be improved.

A tower type vertical axle windmill includes a tower portion. The tower portion has a plurality of layers and a plurality of wind turbines and a computer is used to open and close the walls of the tower portion. Each of the wind turbines includes a seat portion, an energy output assembly and a rudder assembly. The seat portion can carry other components. A circular platform is disposed on the base portion of the energy output assembly and is supported by bearings to enable it to turn around. A flywheel is disposed on the outmost portion of the blade module and can store the energy extracted from the wind and enhance the balance of the windmill. In addition, an output axle is connected with the circular platform and a generator.

The invention provides a lower limbs recovery device of hospital patients, which comprises a walking mechanism, a bearing mechanism arranged on the walking mechanism, a backrest mechanism arranged onthe bearing mechanism and located at the back part, a modular massage mechanism arranged on the bearing mechanism and located at the front part, and a leg supporting mechanism arranged on the bearingmechanism and matched with the modular massage mechanism; both ends of the modular massage mechanism are provided with drying mechanism and a control mechanism arranged on the walking mechanism for controlling the walking mechanism, the bearing mechanism, the backrest mechanism, the modular massage mechanism, the drying mechanism and the a leg supporting mechanism. Patients can comfortably sit onthe lower limbs recovery device, and the lower limbs recovery device can perform massage and physical therapy on the patients, thus the patient body is relaxed and accelerated to recovery; meanwhile,sweat of the massage part is evaporated, thus the working pressure of medical workers is greatly lightened.

The invention discloses a plasma precise energy control protection system. The system comprises an AD / DC module, a DC control module and a plasma energy output module; the system further comprises a switching circuit connected in series between the DC control module and the plasma energy output module. In the plasma energy output module, an energy regulation and control circuit is used for dynamically sampling current to detect an impedance value and directly feeding back the impedance value to a second driving control circuit; when the detected impedance value is lower than the excitation impedance value of the plasma, energy regulation and control are carried out, so that the output energy of an impedance matching and output circuit is reduced; and a parallel short-circuit detection circuit is used for carrying out parallel short-circuit detection and then sending an obtained short-circuit detection signal to the switching circuit to carry out short-circuit judgment so as to realize on-off of the switching circuit. According to the plasma precise energy control protection system of the invention, a direct feedback mechanism and parallel voltage sampling are adopted to detect a short-circuit signal, and therefore, the response is fast, the system energy output is stable, and the safety is good.

The invention provides a severe patient postoperative recovery physical therapy device. The device comprises a walking mechanism, a bearing mechanism arranged on the walking mechanism, a backrest mechanism arranged on the bearing mechanism and located at the rear portion, a modularized massaging mechanism arranged on the bearing mechanism and located at the front portion, a leg supporting mechanism arranged on the bearing mechanism and matched with the modularized massaging mechanism, a sunshade cooling mechanism arranged on the backrest mechanism and a control mechanism arranged on the walking mechanism and used for controlling the walking mechanism, the bearing mechanism, the backrest mechanism, the modularized massaging mechanism, the sunshade cooling mechanism and the leg supporting mechanism; due to cooperative control of the control mechanism, riding is comfort, the patient can be subjected to massaging and physical therapy, the fatigue of the patient is relieved, working pressure of medical workers is greatly relieved, and meanwhile the influence caused by outdoor climatic changes on a patient can be lowered.

The invention discloses an apparatus and method for the frequency tracking of a wireless energy transmission system, and belongs to the technical field of wireless energy transmission. The apparatus of the present invention comprises a high-frequency inversion circuit, an LC resonance circuit, a current detection circuit, a signal conditioning circuit, a digital signal processor and a PWM drivingcircuit; the digital signal processor receives square wave signals outputted by the signal conditioning circuit, preprocesses the square wave signals, outputs PWM driving signals, transmits the PWM driving signals to the PWM driving circuit; and the PWM driving circuit drives the high-frequency inversion circuit to adjust the resonant frequency of acquired alternating current. With the apparatus and method of the invention adopted, the problem that a primary transmitting coil loop is detuned is solved; the LC resonance loop always works in a resonance state; and it is guaranteed that the wireless energy transmission system is always in a resonance state. According to the apparatus and method of the invention, the problems of unstable energy transmission and low efficiency caused by the detuning of the wireless energy transmission system are solved, so that the stability of the energy output of the system is ensured.

The invention discloses a beauty apparatus using focused ultrasonic waves for multilayer stimulation to realize subcutaneous collagen regeneration to realize skin firming and winkle removal. The beauty apparatus includes an analysis host and an ultrasonic treatment head, the ultrasonic treatment head includes an installation shell, the installation shell consists of two half-shell components with oppositely arranged openings, the two half-shell components form an installation cavity, an inner wall of one side of the installation shell, which is close to the analysis host, is fixedly provided with a first stepping motor and a second stepping motor through screws in sequence from top to bottom, and a first transmission device and a second transmission device are welded to output shafts of the first stepping motor and the second stepping motor. In the beauty apparatus provided by the invention, synchronous movement of a concave ultrasonic transducer along a height direction and a length direction of the installation shell is convenient, an action area is larger, focused ultrasonic waves are adopted, thus the purposes of noninvasive stimulation of collagen generation, tightening skin and eliminating redundant fat are achieved, a U-shaped fixing frame and the concave ultrasonic transducer can be fixed, and thus a continuous therapeutic effect is achieved.

The invention discloses a pre-charging quick-start fiber laser which comprises a control system, the control system is connected with a driving system, and the driving system is connected with a seed source laser, a first pumping diode and a second pumping diode. The seed source laser, a low-power optoelectronic isolator, a pre-amplification stage active optical fiber, a first-stage optical coupler, an isolation filter, a main amplification stage active optical fiber, a second-stage optical coupler and an isolator are connected in sequence, and the isolator outputs finally amplified laser; the first-stage optical coupler is connected with the output end of the first pumping diode; and the second-stage optical coupler is connected with the output end of the second pumping diode. The first pulse delay energy of the seed source laser and the pumping diode is controlled through the control system, so that the active optical fiber is pre-charged, the rapid establishment of the laser pulse is ensured, and the laser processing quality is improved.

The invention provides a frequency conversion control method and device of a wireless charging system and a storage medium. The wireless charging system comprises a transmitting end and a receiving end, wherein the transmitting end is provided with a phase-shift full-bridge control circuit. The method comprises the following steps: obtaining a phase-shift angle of the transmitting end in real timewhen the wireless charging system is in a stable charging state; and when the phase shift angle is greater than a first preset phase shift angle, adjusting the current resonant frequency of the transmitting end, and increasing the frequency difference between the current resonant frequency of the transmitting end and the preset resonant frequency; by detecting phase shift angle parameter of the transmitting end and a charging current parameter of a receiving end, deducing the distance between the current transmitting coil and the receiving coil; when the distance between the transmitting coiland the receiving coil is too short, adjusting the current working frequency to be far away from the optimal resonant frequency; and when the distance between the transmitting coil and the receivingcoil is too long, adjusting the current working frequency to be close to the optimal resonant frequency, thereby expanding the application range of the distance between the transmitting end and the receiving end in the wireless charging system.