648 results about "Wireless power supply" patented technology

The invention discloses a new energy automobile wireless power supply soft switching control system based on a segmentation strategy, and particularly relates to the technical field of new energy automobile wireless power supply, and the control system comprises a resonance current zero-cross detection module which detects a resonance current output square wave signal of a resonance network in real time; the segmented control decision module is used for selecting a strong control strategy or a weak control strategy according to a comparison result of the smoothed frequency difference value and a preset threshold value; the segmented control execution module is used for adjusting the inverter driving frequency by adopting a corresponding control algorithm according to the output of the segmented control decision module; according to the new energy automobile wireless power supply soft switching control system based on the segmentation strategy, the segmentation control logic and the model and algorithm of the special module are designed, so that the driving frequency of the new energy automobile is adjusted, and the driving frequency of the new energy automobile is adjusted to be within the preset frequency locking range. And wide-range frequency locking, rapid dynamic correction and high-precision steady-state control are realized.

The invention provides an air-ground integrated reconfigurable intelligent surface energy transmission system, and belongs to the technical field of wireless power supply systems, and the system comprises a visual perception module which is used for obtaining image information of a monitoring area, carrying out the recognition and positioning of an energy receiving target based on the image information, and outputting a target coordinate; the control calculation module calculates phase regulation and control parameter coordinates required for driving the reconfigurable intelligent surface based on the received target; the energy transmission module dynamically adjusts the wavefront phase of the electromagnetic wave based on the phase regulation and control parameter coordinates to form an energy focus point at the position of the energy receiving target; the energy receiving module is arranged on an energy receiving target and used for receiving the electromagnetic energy at the energy focus point and converting the electromagnetic energy into direct-current electric energy. According to the invention, the three technical fields of high-precision real-time sensing, intelligent signal processing and advanced electromagnetic beam control are deeply integrated, and remote, high-efficiency and automatic charging for a plurality of freely moving devices is realized.

The invention relates to the technical field of wireless power supply, and provides a non-contact power supply transmission line, which comprises a transmission module and a mobile power taking module, and is characterized in that the transmission module comprises an excitation cable and a linear transmission unit, and the linear transmission unit comprises a plurality of linear stators along the transmission direction; the movable electricity taking module comprises a rotor and a first electricity taking piece, and the rotor moves under current excitation; the first power taking piece can act with a magnetic field generated by electricity around the excitation cable and generate current so as to supply the current to an electric element installed on the mobile power taking module. According to the non-contact power supply transmission line, the mover is driven to move in a magnetic drive mode, and in the moving process of the mover, the first power taking part can be always coupled with the excitation cable, so that electric energy is uninterruptedly obtained to be supplied to an electric element, and the first power taking part does not need to be in contact with the excitation cable when obtaining the electric energy, so that the power utilization efficiency is improved. The problems that power cannot be continuously supplied to the execution part, and the conveying continuity of the rotor cannot be guaranteed are effectively solved.

The embodiment of the invention provides an intelligent implantable wireless power supply kit. An intelligent implantable wireless power supply kit is applied to the field of wireless power supply and comprises a control module, a power supply module and a module support. The control module and the power supply module are both arranged on the module support and fixed to the inner side of a blood vessel through the module support. The control module is electrically connected with the power supply module. The power supply module realizes electric energy storage and power supply, and the control module processes and sends data. According to the scheme, the implantation difficulty of the wireless power supply suite can be reduced, compression of the module support is facilitated, necessary hardware support is provided for the implantable monitoring sensor, and the detection accuracy and precision are improved.

The invention discloses a gear dynamic parameter in-situ testing device based on wireless power supply. The gear dynamic parameter in-situ testing device comprises a wireless power supply system, a sensor, a data processing system, a data transmission system and an upper computer, the wireless power supply system is used for providing electric energy for the sensor and the data acquisition system; the sensor is used for collecting dynamic parameters of the gear; the data processing system is used for processing the gear dynamic parameters; the data transmission system is used for transmitting the processed gear dynamic parameters to an upper computer in a wireless transmission manner; and the upper computer is used for visually displaying the processed dynamic parameters of the gear. The problem of long-time test operation and maintenance of the rotating gear in a complex narrow space is solved, and long-time in-situ test of dynamic parameters of the gear can be ensured.

The present application belongs to the field of transmission technology, and discloses a multi-base station cooperative wireless energy supply energy efficiency evaluation optimization method and system and an electronic device. The present application constructs a passive Internet of Things system model of multi-wireless energy supply base station cooperative energy supply passive energy device; according to the passive Internet of Things system model, the statistical average energy collection efficiency of the passive Internet of Things system is defined, and the statistical average energy collection efficiency is taken as an evaluation index of the energy efficiency of multi-base station cooperative wireless energy supply; an optimization problem of maximizing the statistical average energy collection efficiency is constructed; the optimization problem is solved to obtain power distribution information of the multi-wireless energy supply base station corresponding to the maximization of the statistical average energy collection efficiency; and the multi-base station cooperative wireless energy supply is configured and optimized according to the power distribution information. The present application can meet the demand of multi-base station energy supply for long-term reliability of energy efficiency in practical application.

The invention relates to the technical field of communication power connection, in particular to a magnetic coupling connector assembly for deep sea wet plugging, which comprises a socket component and a plug component, wireless power supply coils and communication modules are arranged at the front ends of the socket component and the plug component, and a first annular magnet array is arranged at the front end of the socket component. A second annular magnet array is arranged at the front end of the plug component, and magnetic poles at the same position of the first annular magnet array and the second annular magnet array are oppositely arranged; and a rotary locking mechanism is arranged between the socket component and the plug component and is used for realizing mechanical locking through relative rotation after the socket component and the plug component are magnetically adsorbed. By adopting the design that the annular multi-pole magnet array and the mechanical rotary locking mechanism cooperate with each other, magnetic force provides adsorption force during butt joint and is converted into locking force after locking, self-alignment and high-reliability locking in the butt joint process are completed, and the technical effect of environment interference resistance is achieved.

A kitchen appliance is disclosed includes a first electrical component, a second electrical component, and a wireless power receiver system. The wireless power receiver system includes a first receiver antenna configured to couple with a first transmission antenna and receive virtual AC power signals from the first transmission antenna. A second receiver antenna is configured to couple with a second transmission antenna and receive virtual DC power signals from the second transmitter antenna. A first receiver power conditioning system is configured to receive the virtual AC power signals, convert the virtual AC power signals to AC received power signals, and provide the AC received power signals to power the first electrical component. The second receiver power conditioning system configured to receive the virtual DC power signals, convert the virtual DC power signals to DC received power signals, and provide the DC received power signals to power the second electrical component.

A power transmission device according to one embodiment of the present disclosure comprises a control unit that controls a power transmission unit that performs wireless power transmission. The control unit comprises: a means for identifying dynamic information relating to a power receiving surface that corresponds to a power receiving unit with which a target power receiving device is provided; a means for identifying static information relating to the power receiving surface; a means for referring to the dynamic information relating to the power receiving surface and the static information relating to the power receiving surface to generate control parameters relating to a radiation direction and a beam shape of a power transmission beam for supplying electrical power to the target power receiving device; a means for causing the power transmission unit to radiate the power transmission beam in accordance with the control parameters; a means for referring to a position of an edge in an image produced by imaging of an area around the target power receiving device and monitoring entry of biological bodies or objects into an entry-prohibited space arising in an area around a route of the power transmission beam; and a means for stopping radiation of the power transmission beam if entry of a biological body or an object into the entry-prohibited region has been detected.

The utility model provides a dual-redundancy aircraft propeller wireless variable pitch system. The system comprises a driving integrated control board, a power supply distribution assembly box, a Lora communication system, a wireless data transmission radio station, a wireless power supply system, a transmitting double antenna, a receiving double antenna, a variable pitch motor and a propeller mechanical mechanism. Wherein the wireless power supply system comprises a transmitting coil group and a receiving coil group; the transmitting dual-antenna comprises an antenna I and an antenna II, and the receiving dual-antenna comprises an antenna III and an antenna IV; according to the system design provided by the utility model, an electric slip ring used in wired pitch change is replaced by a wireless pitch change mode, and wireless electric energy supply and wireless signal control of the pitch change motor are realized. And meanwhile, a dual-redundancy design of a Lora communication system and a wireless data transmission radio station is adopted to carry out wireless communication so as to control the variable-pitch motor.

To provide a wireless power supply system in which overvoltage protection can be realized at the power reception side without adopting a special circuitry configuration.SOLUTION: A power reception device 3 includes a rectifier 32 that converts received AC voltage to DC voltage and outputs the DC voltage to between a high-potential side line 41 and a low-potential side line 42, an input capacitor C1 that smooths the output of the rectifier 32, a DCDC converter 5 that receives the DC voltage smoothed by the input capacitor C1 as input voltage Vin, converts the input voltage Vin to desired output voltage Vout by controlling the on / off of at least two switching elements SW1, SW2, and outputs the output voltage to a load, and an overvoltage detection unit 51 that detects overvoltage of the input voltage Vin. When the overvoltage detection unit 51 detects overvoltage, the DCDC converter 5 executes overvoltage protection operation of forming a current path to allow protection current Ipro to flow therethrough between the high-potential side line 41 and the low-potential side line 42 by controlling the switching elements SW1, SW2 to be on.SELECTED DRAWING: Figure 1

To provide a wireless power transmission device, a wireless power receiving device, and a wireless power supply system that have simple and lightweight configurations capable of being highly effective in reducing leakage magnetic fields, even at locations far from a power transmitting coil and a power receiving coil.SOLUTION: A wireless power transmission device that transmits power contactlessly includes: a power transmitting coil that transmits power; a driving induction coil provided around the power transmitting coil; and a canceling magnetic field generating coil connected in series to at least a portion of the driving induction coil so as to surround at least a portion of the power transmitting coil, in which a leakage magnetic field canceling coil is formed by the driving induction coil and the canceling magnetic field generating coil.SELECTED DRAWING: Figure 1

Systems and methods for implementing over current protection for wireless power devices is described. The method can include receiving alternating current (AC) power from a wireless power transmitter. Rectifying the AC power into a rectified voltage. Generating an output voltage using the rectified voltage. Determining whether an output current of the output voltage can be within a range of current values. In response to output current being within the range of current values, regulating the rectified voltage to a level that minimizes a difference between the rectified voltage and the output voltage. In response to output current being outside of the range of current values, determining whether output current can be greater than or less than an upper bound of the range of current values. In response to the output current being greater than the upper bound of range of current values, shutting down the wireless power transfer system.

The invention discloses a programmable electrical nerve stimulation system based on ultrasonic energy supply. The programmable electrical nerve stimulation system comprises an ultrasonic transmitter, a piezoelectric receiver, a rectifier, a power management module, a data demodulation circuit, a control module, an H-bridge driving circuit, a current digital-to-analog converter and an H-bridge circuit, the external ultrasonic transmitter can transmit ultrasonic waves to supply power to the system and transmit data, and the piezoelectric receiver receives ultrasonic signals and converts the ultrasonic signals into alternating current signals. The rectifier and the power management module can convert alternating current signals into direct current signals to provide power for other circuits of the system, the data demodulation circuit processes the alternating current signals to recover data information in ultrasonic waves, the control module controls the H-bridge driving circuit and the current digital-to-analog converter according to the data information, and finally electrical stimulation is achieved through the H-bridge. The system provided by the invention has the characteristics of wireless energy supply, high safety and programmable stimulation parameters, and can realize accurate control of output current parameters.

The application provides a wireless charging device and a foreign matter detection method, device, circuit and equipment thereof. The method comprises the following steps: applying a damping oscillation signal processing circuit to process a damping oscillation signal of a wireless power transmitter to be detected, so as to obtain a corresponding pulse signal; determining two target amplitudes of the damping oscillation signal and a target cycle number between the two target amplitudes according to the pulse signal; determining a current oscillation frequency and a current quality factor of the wireless power transmitter to be detected based on the two target amplitudes and the target cycle number; and determining whether there is foreign matter in the working range of the wireless power transmitter to be detected based on the current oscillation frequency, the current quality factor, a preset standard quality factor and a preset standard oscillation frequency. The application can output a pulse signal accurately reflecting the damping oscillation signal of the wireless power transmitter, so as to calculate the current quality factor and the current oscillation frequency of the wireless power transmitter based on the pulse signal, and realize more accurate foreign matter detection.

The invention provides a magnetic drive conveying system. The magnetic drive conveying system comprises a conveying track, a rotor device, a wireless power supply mechanism and a wireless power obtaining mechanism. The conveying track comprises a stator magnet; the rotor device comprises a rotor base, a rotor magnet and a reversing mechanism, the rotor magnet and the reversing mechanism are arranged on the rotor base, the rotor magnet is magnetically coupled with the stator magnet so as to generate driving force used for driving the rotor base to move along the conveying track, and the reversing mechanism is used for driving the rotor base to change the moving direction of the rotor base on the conveying track; the wireless power supply mechanism is connected to the conveying track; the wireless electricity obtaining mechanism is connected to the rotor base and electrically connected with the reversing mechanism. When the rotor base moves on the conveying track, the wireless power obtaining mechanism is magnetically coupled with the wireless power supply mechanism, so that electric energy is obtained through the wireless power supply mechanism, and power is supplied to the reversing mechanism. Therefore, the problem of supplying power to the reversing mechanism is solved, the continuity of electric energy acquisition is ensured, and the normal operation of the reversing mechanism is prevented from being influenced by power supply interruption.

The invention provides a wireless power supply network throughput optimization method and system. The method comprises the following steps: constructing a wireless power supply communication system model with energy constraint and time delay constraint; constructing a throughput maximization problem P0; s3, on the basis of the throughput maximization problem P0, constructing a charging energy maximization sub-problem P1 under the constraints of total energy and energy collection duration, and solving the sub-problem P1 under the conditions that the total available energy of the wireless power supply base station is less and the total available energy of the wireless power supply base station is more; based on the throughput maximization problem P0, constructing a throughput maximization sub-problem P2 with wireless communication duration as a variable under the condition that an energy collection user gives an energy collection strategy, and solving the throughput maximization sub-problem P2; based on the optimal wireless energy transmission strategy and the optimal wireless communication duration strategy characteristics, the throughput maximization problem P0 is converted into a single-variable optimization problem P3, and the single-variable optimization problem P3 is solved. According to the method, the actual throughput performance of the wireless energy supply communication network is improved, and the efficient communication requirement in a complex dynamic network environment is met.

The invention provides a dynamic wireless power supply system transmitting end power distribution network and a switching control method thereof, and belongs to the technical field of wireless power transmission. The invention aims to solve the problems that a significant current is induced in a non-working guide rail due to coupling of adjacent guide rails in a parallel LCC compensation topology of a high-power dynamic wireless power supply system and a relatively large voltage and current peak is generated in a loop when a switch is switched. The transmitting end power distribution network comprises a transmitting end, a guide rail circuit, a rectifying circuit and a load. The switching control method comprises the following steps: dividing the work of a power distribution network of a transmitting end into a first working state to a fifth working state according to the on-off states of a main switch and an auxiliary switch, setting transmitting end and receiving end partial harmonic equivalent inductors of partial harmonic of the transmitting end and the receiving end, and adjusting the partial harmonic degree of the transmitting end according to the coupling degree between guide rails, and according to the input impedance of the transmitting end and the equivalent resonance impedance reflected to the transmitting end by the receiving end, adjusting the partial resonance degree of the receiving end, and repeating the working double tires to realize inversion soft switching.

The utility model discloses a computer heat dissipation holographic fan which comprises a mounting frame and a mounting plate, a heat dissipation assembly is mounted in the mounting frame, a rotating cylinder is rotatably mounted at the top of the mounting plate, a holographic projector is fixedly mounted in the rotating cylinder, a rectangular groove is formed in the top of the holographic projector, and the rectangular groove is formed in the top of the holographic projector. A projection lamp strip is fixedly mounted in the rectangular groove; when an arranged driving motor rotates, a connecting column can be driven to rotate, so that a holographic projector rotates, a projection lamp strip is driven to rotate, holographic projection is formed by matching the rotating holographic projector with the projection lamp strip turn-on frequency, and customized 3D models, images and videos can be projected and displayed; in addition, the user can easily upload and manage contents and create personalized and dynamic PC settings, and by means of intelligent speed regulation, wireless power supply and efficient heat dissipation capabilities, the system performance of the user can be improved, and the game atmosphere of the user can be converted into immersive visual experience.

In an embodiment, a method includes wirelessly transmitting power using a transmitter LC tank of a wireless power transmitter, wirelessly receiving power from the transmitter LC tank using a receiver LC tank of a wireless power receiver, interrupting wirelessly transmitting power for a slot period, during the slot period, measuring a receiver signal associated with the receiver LC tank, transmitting receiver data based on the measured receiver signal to the wireless power transmitter, determining a power loss associated with the wirelessly transmitting power based on the measured receiver signal and detecting a metallic object based on the determined power loss.

Provided in the embodiments of the present application is a laundry treatment apparatus, comprising a cabinet, a laundry treatment drum and a wireless power supply assembly, wherein the case comprises a rear panel; the laundry treatment drum is rotatably arranged in the cabinet, and comprises a drum body and a rear cover, the rear cover being arranged at the rear end of the drum body; and the wireless power supply assembly comprises a transmitting module and a receiving module, the receiving module being used for receiving electromagnetic signals transmitted by the transmitting module and generating an induced current, the transmitting module being arranged on the rear panel, and at least a portion of the receiving module being arranged on the rear cover. In the laundry treatment apparatus provided in the embodiments of the present application, the transmitting module and the receiving module can transfer power without the need for contact, thereby achieving power transfer between the relatively rotating laundry treatment drum and the relatively stationary rear panel. An electrical element is powered by means of the receiving module, thereby facilitating meeting the power requirement of the electrical element and facilitating close-range sensing of the state of laundry.

The application discloses a kind of high-efficiency adaptive dynamic wireless power supply systems for wheel hub motor, battery is connected adaptive coupling transmission unit by vehicle-mounted power supply unit, the adaptive coupling transmission unit includes transmitting end and receiving end, the transmitting end dynamically adjusts output impedance according to control instruction, to match the load and coupling state of receiving end variation, the receiving end converts and outputs electric energy to wheel hub motor.The application completely cancels the physical high-voltage cable connection from the vehicle body to the rotating wheel, helps to improve the safety performance of vehicle, and improves the dynamic transmission performance and stability, can ensure the long-term reliable operation of power electronic elements in harsh environment, realizes prospective power regulation, avoids unnecessary energy waste, so as to improve the cruising range of whole vehicle.

The invention relates to a wireless power supply system for intelligently inhibiting dynamic disturbance magnetic resonance. The wireless power supply system comprises a vehicle-mounted subsystem and a ground subsystem. The vehicle-mounted subsystem collects motion, position and task data by using a multi-dimensional state real-time sensing module; the dynamic disturbance prediction module predicts future space displacement and power consumption based on a machine learning model and generates future disturbance information. And the vehicle-mounted end communication module sends the information to a ground subsystem. After the ground subsystem receives the signal, a feedforward compensation decision module determines a target transmitting frequency and equivalent impedance; the power output and feed-forward execution module adjusts parameters in advance, so that a system working point is optimal before disturbance occurs. According to the method, disturbance caused by dynamic movement and load change of the mobile equipment can be actively predicted and compensated in advance, so that the electric energy transmission efficiency and the system stability are always kept at the optimal level under the continuous dynamic working condition.

The utility model provides a kind of wireless power supply device, including rear mounting assembly, including rear shell, and first conductive structure being arranged in rear shell, it includes first PCB board, first insulating part and first coil arranged in sequence, wherein, first PCB board is located at rear shell bottom wall and contact with it, wiring component is further provided on rear shell, one end of wiring component is connected with first PCB board, and the other end of wiring component is communicated with power supply;Front mounting assembly, including front shell, front shell is detachably connected with rear shell, second conductive structure is provided in front shell, and second conductive structure includes second PCB board, second insulating part and second coil arranged in sequence, wherein, second PCB board is located at front shell bottom wall and contact with it;Solved the installation difficulty, contact problem and easy damage problem of existing technology when 4 inch central control screen is connected with power supply between strong current and weak current module using pin row seat or FPC soft cable.

According to the optimization method for data acquisition of the unmanned aerial vehicle in the wireless power supply Internet of Things, a nonlinear energy collection model is adopted, an optimization target is modeled as a mixed integer nonlinear programming problem, and the optimization problem is decomposed into an equipment service sequence generation module (a main module) and an unmanned aerial vehicle trajectory optimization module (a sub module). In the main module, the service priority of equipment is dynamically adjusted on the basis of equipment data volume and historical service times, meanwhile, in view of mutual conflict of optimization targets, a multi-objective evolutionary strategy is adopted to generate a Pareto frontier solution set, and an optimal equipment access sequence of each round is screened from the Pareto frontier solution set, and in the sub-module, for the continuous action parameter adjustment problem of the unmanned aerial vehicle, the optimal equipment access sequence of the unmanned aerial vehicle is obtained. The input dimension of the neural network is reduced by constructing a lightweight state space, and a multi-target reward function including data collection amount and energy consumption is designed, so that collaborative optimization and long-term balance of equipment service fairness, the data collection amount and the energy consumption of the unmanned aerial vehicle are realized.

The invention relates to the technical field of reservoir discharged water temperature improvement, and discloses a modular layered water taking device and method based on wireless charging, and the device comprises a gate groove assembly, a gate assembly, a wireless power supply and communication assembly, a grabbing beam, a two-way portal crane, electrical and control equipment and the like; the method comprises the steps that the grabbing beam is controlled through the two-way portal crane, and the gate assembly is grabbed and moved to vertically ascend and descend along the gate groove assembly to be positioned to the designated water taking layer position; when the gate assembly moves to a charging area, a wireless charging device of the gate assembly is automatically aligned with a wireless charging base of the power supply and communication assembly, a non-contact energy transmission channel is established based on the electromagnetic induction principle, and the battery assembly is charged. The controller dynamically adjusts the opening degree of the gate leaf or triggers closing according to data, water taking efficiency is optimized, and structural safety is guaranteed. According to the invention, the water conservancy project and the Internet of Things technology are deeply fused, and each module forms an organic whole through intelligent control; the method is particularly suitable for medium-large hydro-junction projects needing frequent adjustment of water taking layers.

The application provides a wireless power supply device and a wireless power supply method. The wireless power supply device comprises an antenna and a driving module for changing the position of the antenna. The wireless power supply device can be a transmitting end of wireless power supply. Because the antenna of the transmitting end has the function of variable position, the direction of the antenna can be dynamically adjusted to face the power receiving end, so that the transmitting capacity of all antennas of the transmitting end can be exerted in any application scenario, and the utilization rate of the antenna is improved.

This utility model belongs to the field of electronic product technology, and specifically relates to a plug-in signal transmission sensor with wireless power supply. The housing assembly includes a lower shell, a middle section, an upper shell, and a probe, which are arranged sequentially from top to bottom. The lower end of the probe is detachably connected to the upper end of the upper shell, the lower end of the upper shell is detachably connected to the upper end of the middle section, and the lower end of the middle section is detachably connected to the upper end of the lower shell. The electronic components are installed within the space enclosed by the upper, middle, and lower shells. Signal data is directly exported through the upper shell, eliminating the need to transmit signal data to the lower base contacts as in older products, effectively improving the stability and efficiency of signal data export. The plug-in connection avoids the use of wires, helping to solve problems caused by wiring in older products, thereby saving maintenance time and costs.

The utility model discloses a magnetic suspension small lamp, which belongs to the technical field of suspension small lamps and comprises a magnetic suspension and wireless power supply base and a luminous magnetic suspension lamp ball, the magnetic suspension lamp ball is arranged above the base in a magnetic suspension manner, an anti-falling mechanism is arranged on the surface of the base, and the anti-falling mechanism comprises an angle adjusting component, an anti-falling protection arm and an adsorption component; according to the magnetic suspension lamplet, through the arrangement of the anti-falling mechanism, the stability of the base can be effectively enhanced when the base is placed through the design of the angle adjusting assembly and the adsorption assembly. Before use, the base is pressed downwards, the positioning suction cup is adsorbed on a table top, and the rotating block keeps a set angle under the torsion action of the torsion spring, so that the rotating block with torsion limiting force can enhance the effect of keeping the adsorption position of the positioning suction cup, and the possibility that the base is collided to generate sudden rapid displacement is reduced; therefore, the risk that the magnetic suspension lamp ball falls off due to displacement of the base is reduced.

1. Name of the product in this design: Energy Storage Unit (CTPS-020C). 2. Purpose of this design: Supercapacitor energy storage device for wireless power supply systems. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.