57results about How to "Realize wireless power supply" patented technology

The invention discloses a high-power wireless power transmission system, belonging to the field of wireless power supply. The system structurally comprises a rectification filtering circuit, a high-frequency inverter circuit, a resonance module, a rectification voltage-stabilizing circuit and a power supply control circuit, wherein the resonance module is composed of an energy emission coil and an energy receiving coil, a stable direct current is supplied to the high-frequency inverter circuit by an alternating current power supply passing the rectification filtering circuit, the direct current is changed into a 10 MHz high frequency alternating current by the inverter circuit and is transmitted to the emission coil, the receiving coil obtains energy from the magnetic field of the emission coil by electro-magnetic resonance and the electric energy is supplied to a load after rectification voltage stabilization and energy control. Power is supplied to a high-power electrical device in a wireless way without a circumscribed circuit by the high-power wireless power transmission system, so that the moving of the device becomes very convenient, so as to lay the foundation for the development of future internet-of-things technology.

The invention provides a vector arc stage switching method and device for double rotary balance mass-based dynamic magnetic steel type magnetic levitation workpiece stages, and belongs to a semiconductor manufacturing equipment technology. The device comprises a support frame, a balance mass block, a rotating shaft, magnetic levitation workpiece stages, a workpiece stage measurement device and a workpiece stage drive device, wherein the two workpiece stages work between a measurement station and an exposure station; the positions of the workpiece stages are measured by plane gratings; the workpiece stages are driven by magnetic levitation planar motors; and the two workpiece stages are driven by the planar motors to achieve single-beat arc fast stage switching in the double workpiece stage switching process. According to the vector arc stage switching method and device, the problems that an existing stage switching scheme has multiple beats, a long track, multiple starting and stopping beats, long stabilization time and the like are solved; the stage switching link is reduced; the stage switching time is shortened; and the productivity of a lithography machine is improved.

The invention provides a giant magnetostrictive material-based rocking head type micromotor, which comprises a stator, a rotor and a precompression system, wherein the stator comprises a magnetic deformation body and a metal base body; a magnetostrictor body extends along the magnetization direction under the action of the applied magnetic field; two first-order bending vibration modes with a certain included angle in space are excited on the stator; the motion track of a mass point on a contact drive end surface of the stator and the rotor is an ellipse; the rotor runs through the hollow stator and is pressed on a drive end of the stator under the action of the precompression system; and the stator drives the rotor to rotate through friction. According to the giant magnetostrictive material-based rocking head type micromotor, wireless driving is achieved by external magnetic field excitation; microminiaturization is easy to achieve; and a piezoelectric material body is used for monitoring the running state of the motor in real time, and can also be used as a magnetoelectric conversion unit for achieving wireless energy supply and the like. The giant magnetostrictive material-based rocking head type micromotor is especially suitable for the occasions, such as the fields of medical diagnosis, robots and the like, which require accurate positioning.

The invention discloses an automobile power supply system, belonging to the field of automobile power. The automobile power supply system comprises an emission module, a receiving module and an enhancement module, wherein the emission module is buried below an automobile running rail and connected with a power supply; the receiving module is arranged at the bottom of an automobile and electrically connected with a motor or a battery pack of the automobile; high-frequency current provided by the power supply generates an alternating magnetic field through the emission module; magnetic field coupling is generated between the receiving module and the emission module to make magnetic energy of the alternating magnetic field converted into electric energy; magnetic leakage is reduced by the enhancement module, the transmission efficiency of the energy is ensured, so that the automobile is driven or the battery pack of the automobile is charged; devices such as wires or connectors are prevented from being used to connect the power supply and the battery pack of the automobile so as to achieve wireless power supply to the automobile, and a series of problems caused by the usage of the devices such as the wires or the connectors to connect the power supply and the battery pack are further avoided.

The invention discloses a wireless power supply device and a household electrical appliance system. The wireless power supply device is used for supplying power for a regulation device and includes awireless energy transmitting end and a wireless energy receiving end electrically connected with the regulation device, wherein the wireless energy transmitting end is used for generating a wireless energy signal, and the wireless energy receiving end is used for receiving the wireless energy signal and further utilizing the wireless energy signal to supply power for the regulation device. The wireless power supply device is advantaged in that wireless power supply for the regulation device can be realized, the need for a user to frequently change a battery used by the regulation device is avoided, and improvement of user experience is facilitated.

The invention discloses an electromagnetic T-shaped beam vibration energy harvester on the basis of a rigid and flexible combined structure. The electromagnetic T-shaped beam vibration energy harvester comprises a rigid support plate (5), a magnet (4) and a rigid and flexible combined plate (2). The rigid support plate (5), the magnet (4) and the rigid and flexible combined plate (2) are sequentially arranged from bottom to top; the magnet (4) closely clings to the rigid support plate (5), and a plurality of copper cylinders (3) are uniformly arranged between the rigid support plate (5) and the rigid and flexible combined plate (2), so that gaps can be reserved between the magnet (4) and the rigid and flexible combined plate (2). The electromagnetic T-shaped beam vibration energy harvesterhas the advantages that the electromagnetic T-shaped beam vibration energy harvester is of a movable coil structure; a coil is positioned on a rigid plate portion of the rigid and flexible combined plate, a vibration pickup beam is in a polyimide T-shaped beam design, the effective length of the vibration pickup beam can be prolonged by the design, and the resonance frequencies of the electromagnetic T-shaped beam vibration energy harvester further can be lowered; printed circuit rigid and flexible combination technologies are introduced into the electromagnetic T-shaped beam vibration energyharvester for the first time as compared with other vibration energy harvesters, the electromagnetic T-shaped beam vibration energy harvester has low frequencies as compared with rigid beam harvesters, the requirements on energy harvesting at different mounting angles can be met by the T-shaped beam design, and accordingly the electromagnetic T-shaped beam vibration energy harvester is high in harvesting efficiency.

The invention provides a wireless power supply system based on office table top nonradiative resonant coupling, and relates to an intelligent office table top power supply system, in particular to an office table using nonradiative magnetic resonance wireless power supply. The system is characterized by comprising a drive coil table top base plate, a nonradiative magnetic coupling panel, a protective plate, a wire penetrating hole, a wire incoming socket, a drive circuit and supports, wherein the drive coil table top base plate is located on the nonradiative magnetic coupling panel, a drive coil and a resonator are arranged in the nonradiative magnetic coupling panel, the drive coil is attached to the resonator, the protective plate is located on the top of the nonradiative magnetic coupling panel, the wire penetrating hole penetrates through the drive coil table top base plate, the nonradiative magnetic coupling panel and the protective plate, the wire incoming socket is fixed to the supports at the two ends of the office table, the wire incoming socket is connected with the drive circuit through wires which pass through a wiring groove, and the drive circuit is connected with the drive coil of the drive coil table top base plate through the wires which pass through the wiring groove.

The invention discloses a wireless-power-supply light-emitting brick. The light-emitting brick comprises a light-transmitting glass plate and a glass base plate, wherein the light-transmitting glass plate is arranged on the glass base plate; a circle of notch is formed in the lower surface of the light-transmitting glass plate; an LED lamp is arranged in the notch; the LED lamp, the light-transmitting glass plate and the glass base plate are bonded together through sealing glue; and induction coils and a receiving module are arranged between the light-transmitting glass plate and the glass base plate, wherein the induction coils are used for wireless power supply; or the glass base plate is replaced by a plastic lamp shell. The light-emitting brick has no power supply lead and can be installed freely and flexibly, and the cost of wiring and waterproofing can be saved.

The invention relates to the technical field of engineering safety, and discloses a power supply system, a tower crane monitoring system and a tower crane. The power supply system comprises a first wireless charging device, a first power storage device, a second wireless charging device and a second power storage device. The first wireless charging device comprises a first power supply module mounted on the arm root and powered by the tower crane and a first charging module mounted on a trolley, and the first wireless charging device is used for supplying power to the first charging module through the first power supply module. The first power storage device is mounted on the trolley and used for storing power acquired by the first charging module. The second wireless charging device comprises a second power supply module mounted on the trolley and connected with the first power storage device and a second charging module mounting on a lifting hook, and the second wireless charging device is used for supplying power to the second charging module through the second power supply module. The second power storage device is mounted on the lifting hook and connected with the second charging device and is used for storing power stored by the second charging module and supplying power to a second sensor on the lifting hook. Non-contact wireless charging of the tower crane, the trolleyand the lifting hook is achieved.

The invention discloses a movable wireless power supply system for an exhibition hall. The system comprises a wireless power supply facility buried at the underground of the exhibition hall and receiving devices equipped on each piece of electric equipment. The wireless power supply facility comprises a plurality of emitting devices, and each of the emitting devices is electrically connected to a power distribution cabinet through a power line. Each of the emitting devices comprises a rectifier circuit, a power factor correction circuit, an inverter, an impedance transformation circuit, and a transmitter coil which are electrically connected orderly. An emitting control circuit and an emitting end wireless communication circuit are in a bidirectional connection. Each of the receiving devices comprises a receiving end coil, a load compensation circuit, a high frequency rectifier and filter circuit, a DC-DC circuit, and a receiving end wireless communication circuit which are electrically connected orderly. The receiving end wireless communication circuit and the receiving control circuit are in a bidirectional connection. According to the movable wireless power supply system, the wireless power supply in a range of 10 cm to 30 cm between the ground and the electric equipment is realized.

The present invention discloses electrical equipment, which comprises a main body part, a riveting component, a first coil and a second coil, wherein the pivoting component is connected to the main body part in a pivoting manner; the first coil is mounted on the main body part; and the second coil mounted on the pivoting component; and at least part of the first coil penetrates through the secondcoil to form electromagnetic coupling between the first coil and the second coil, so that wireless power supply between the main body part and the pivoting component is realized.

The invention discloses a laser sensor rotating platform with a replaceable distance measuring machine core, which comprises an optical outer cover, a turntable, a middle bearing plate, a magnetic core mounting seat and a base, and is characterized in that the optical outer cover is mounted at the top end of the base, and an internal cavity is formed between the optical outer cover and the base; the turntable, the middle bearing plate and the magnetic core mounting base are all arranged in the internal cavity; the distance measuring machine core is rotatably mounted at the top end of the turntable, and the bottom end of the turntable is mounted at the top end of the middle bearing plate; and the magnetic core mounting base is assembled at the bottom end of the middle bearing plate which is mounted at the top end of the base. The laser sensor rotating platform is simple in structure, convenient to assemble and capable of achieving interchange assembly of different types of distance measuring machine cores.

The invention belongs to the field of washing machines, and discloses a washing machine and a control method thereof. The washing machine comprises a shell component provided with a clothes putting opening, wherein a cover body/door body is arranged in the clothes putting opening; a wireless power supply transmitting unit is arranged on the shell component; an electrical component and a wireless power supply receiving unit which are connected to each other are arranged on the cover body/door body; and the power supply is carried out on the electrical component through the wireless power supplytransmitting unit and the wireless power supply receiving unit after the cover body/door body is closed. According to the washing machine, the matched wireless power supply transmitting unit and thewireless power supply receiving unit are adopted, the wireless power supply is carried out on the electrical component on the door body or the cover body of the washing machine, the power supply or outage is carried out according to the situation, the energy is saved, the repeated bending of a wire on the door body or the cover body can be avoided, the operation safety of the washing machine is improved, and the user experience is improved.

The invention provides a heating device and a cooking utensil. The heating device comprises a heating film and an electromagnetic induction device. The heating film forms a closed loop; the electromagnetic induction device is arranged to be close to the heating film, and the electromagnetic induction device can generate an alternating magnetic field. An alternating magnetic field generated by theelectromagnetic induction device can enable the heating film to generate induction current and generate heat. The electromagnetic induction device is used for generating the alternating magnetic field, so that the heating film can generate the induction current and generate heat by virtue of the resistance of the heating film so as to heat, direct electrification is not needed, wireless power supply is realized, potential safety hazards are reduced, cost is saved, space is saved, and the technical difficulty is reduced.

The invention discloses an underground long-distance intelligent wireless lighting system for a coal mine. The underground long-distance intelligent wireless lighting system comprises a main roadway wall, an alternating-current power supply, a primary side rectifying and high-frequency converting device, a primary side resonance compensating device, an energy transmitting guide rail coil, a hook,a power pick-up and conversion device and lighting equipment. The lighting system has the beneficial effects that the energy transmitting guide rail coil can be arranged at will according to the actual illumination area requirement; the power pick-up and conversion device and the lighting equipment can be placed at any position of the energy transmitting guide rail coil according to lighting requirements; the power pickup and conversion device and the lighting equipment can be moved, overhauled and replaced at will, the whole circuit does not need to be powered off, the power supply reliability is higher, risks are reduced, and meanwhile due to the fact that the energy transmitting guide rail coil is electrically isolated from the power pickup and conversion device, the lighting system hasthe advantages of being flexible in power supply, easy to control, high in safety and convenient to maintain.

The invention discloses a household electrical appliance bearing device and a household electrical appliance device, and the bearing device comprises a frame body which forms an accommodation cavity of the household electrical appliance; a wireless energy transmitter which is arranged in the frame body, wherein the transmitting end of the wireless energy transmitter faces the accommodating cavity;and a power supply connecting piece which is electrically connected to the wireless energy transmitter. The bearing device of the household appliance can be used for wireless power supply of the household appliance.