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45 results about "Magnetic field coupling" patented technology

Axial-radial compound flux permanent magnet motor

PendingCN122339186AMagnetic field couplingMagnetic poles
This invention provides an axial-radial composite flux permanent magnet motor, relating to the field of motor technology. It includes a rotor assembly and a stator assembly. The rotor assembly includes multiple permanent magnets uniformly arranged circumferentially. Each permanent magnet includes an integrally formed axial pole segment, a first transition segment, and a radial pole segment. The stator assembly includes a stator core and stator windings. The stator core includes stator teeth uniformly arranged circumferentially. Each stator tooth includes an integrally formed axial tooth body segment, a second transition segment, and a radial tooth body segment, corresponding to the axial pole segment, the first transition segment, and the radial pole segment, respectively. The stator windings are wound on the corresponding axial tooth body segments. This invention not only reduces magnetic energy loss and improves magnetic field coupling efficiency but also increases the effective coupling area between the permanent magnets and the stator teeth, improving the motor's torque density and power density. Furthermore, it ensures stable operation and has a wide range of applications.
Owner:RENQIU OUKE MASCH EQUIP CO LTD

A magnetically levitated grain vibrating screen

PendingCN122322133AMagnetic field couplingAlternating current
This invention discloses a magnetically levitated grain vibrating screen, belonging to the field of grain impurity removal technology. It includes a base with a magnetic coupling module; a screen body mounted above the base, with a permanent magnet array corresponding to the magnetic coupling module at its bottom; the magnetic coupling module includes a drive assembly mounted on the base, comprising multiple independent drive coils, each connected to an independently adjustable AC power supply; the AC power supply generates a changing driving magnetic field by inputting AC current of a preset frequency and phase to the corresponding drive coil, and the driving magnetic field couples with the permanent magnet array, driving the screen body to perform multi-degree-of-freedom force-driven motion. The screen body of this invention can perform multi-degree-of-freedom force-driven motion, realizing reciprocating swing motion, and improving the screening efficiency for fine impurities in grain.
Owner:ANHUI OCEAN AUTOMATION EQUIP

Circuit module and circuit toy set

ActiveCN224399993Uavoid wear and tearavoid mechanical wearToysEducational modelsMagnetic rotationMagnetic field coupling
The utility model relates to the technical field of building blocks teaching aid, especially to a circuit module and circuit toy set, including base, the side of base is provided with the interface for inserting the power cord, the bottom of base is provided with the standardization intermate structure for inserting on building block board, and the standardization intermate structure is connecting post or connecting groove, the inside rotation of base is provided with magnetic attraction component and the driving device of driving magnetic attraction component rotation, at least partly transparent liquid storage cylinder body, detachably installed on the base, the bottom of liquid storage cylinder body is equipped with magnetic rotation component, wherein, when liquid storage cylinder body installs to base, magnetic rotation component is located in the magnetic field action range of magnetic attraction component, when driving device drives magnetic attraction component rotation, through magnetic field coupling drives magnetic rotation component synchronous rotation, makes the liquid in liquid storage cylinder body form whirlpool, this scheme has the advantages of non -contact transmission to avoid mechanical wear and tear, high modular degree and convenient maintenance.
Owner:ZHEJIANG DREAMWEAVER MOON TOYS CO LTD

Magnetic current sensor calibration

PendingUS20260169101A1Magnetic field offset compensationMagnetic currentElectrical conductor
A method includes receiving, from a sensor proximate a first conductor, a sensor signal representing a measurement of a magnetic field produced by a first current flowing in the first conductor and a second current flowing in a second conductor. The first current includes first and second current components having different frequencies, and the second current includes third and fourth current components. The third current component is phase shifted from, and has the same frequency as the first current component. The fourth current component has a different frequency from the third current component. The method also includes determining reference values of the first and second currents, and, based on the sensor signal and the reference values of the first and second currents, determining for the sensor, a plurality of coupling coefficients representing magnetic field coupling between the first and second conductors.
Owner:TEXAS INSTRUMENTS INC

Aerosol product and aerosol generation apparatus

PCT designated stageWO2026148769A1Magnetic sourceSusceptor
An aerosol product (10) and an aerosol generation apparatus (100). The aerosol product (10) comprises an aerosol generation member (1) and a blocking member (2) that are adjacently arranged, wherein the aerosol generation member (1) comprises an aerosol generation substrate (11) and a susceptor (12), and the susceptor (12) can generate heat energy in a magnetic field so as to heat the aerosol generation substrate (11); and the blocking member (2) comprises a carrier (21) and magnetic particles (22) dispersed in the carrier (21). The magnetic particles (22) can be effectively magnetized in a magnetic field, thereby becoming an additional magnetic source, and magnetic field coupling can occur between a magnetic field generated by the magnetic particles (22) and a magnetic field generated by an induction coil (20), such that the magnetic field strength of a magnetic field generated by the aerosol generation apparatus (100) is enhanced; and when the susceptor (12) has a machining error, an assembly error, etc., the susceptor (12) can still generate a preset magnetic strength in the magnetic field having the enhanced magnetic field strength, thereby improving the probability of the aerosol product (10) passing an identification operation.
Owner:CCOBATO SHENZHEN TECH LTD

Rotary coupling mechanism for wireless power supply of satellite SADA

ActiveCN115173578BAvoid many problems caused by friction and wearSimple structureCircuit arrangementsTransmitter coilMagnetic field coupling
This invention provides a rotary coupling mechanism for wireless power supply of satellite SADA (Supervisory Automation) systems, comprising a power transmitter and a power receiver. The power transmitter includes a power transmitting circuit and a transmitting coil, while the power receiver includes a power receiving circuit and a receiving coil. The power transmitting circuit is connected to a solar panel, and the power receiving circuit is connected to satellite electrical equipment. The transmitting coil is wound on the outer wall of the inner cylinder, and the receiving coil is wound on the inner wall of the outer cylinder. Both the outer and inner cylinders are made of metal. A signal transmitting circuit is connected to the outer cylinder, and a signal receiving circuit is connected to the inner cylinder. When the inner and outer cylinders are nested, the transmitting and receiving coils face each other, forming a magnetic field coupling to achieve wireless power transmission. Parts of the inner and outer cylinder walls face each other, forming an electric field coupling to achieve wireless signal transmission. Its advantages are: it meets the requirements for energy and signal transmission, has a simple structure, is easy to install, and effectively avoids many problems caused by friction and wear in slip ring structures.
Owner:SHANGHAI AEROSPACE EQUIPMENTS MANUFACTURER CO LTD +1

A kettle with intelligent peep light

ActiveCN224462600UMicrocontrollerMagnetic field coupling
The utility model discloses a kind of blending kettle with intelligent sight hole lamp, it is related to the technical field of blending kettle, the utility model includes the top of shell is equipped with several sight glasses, the upper end of sight glass is equipped with sight hole lamp, the upper end of shell is also provided with manhole, the edge portion of manhole is hinged with manhole cover by hinge structure;Magnetic control sensor is integrated in the circumferential edge portion of manhole, and permanent magnet assembly is embedded in the coaxial corresponding position of manhole cover inner side, touch sensor is integrated in the installation base adjacent area of sight hole lamp, the output signal end of magnetic control sensor and touch sensor is respectively accessed microcontroller, microcontroller controls the power supply loop on-off of sight hole lamp by relay drive circuit.The application is coupled with the magnetic field of magnetic control sensor and permanent magnet to realize accurate linkage with opening action, without manual intervention.Touch sensor adjacent to sight hole lamp provides intuitive operation, responds quickly, and it is convenient, low in cost, avoid the security risk of line aging or damage.

A multi-frequency magnetic field coupled single-channel absolute time-grid angular displacement sensor

This invention discloses a multi-frequency magnetic field coupled single-channel absolute time-grid angular displacement sensor, comprising a stator and a rotor. The stator includes a stator base, a coupling receiving unit, a first isolation ring, and an excitation unit. The rotor includes a rotor base, a coupling transmitting unit, a second isolation ring, and a sensing unit. The excitation unit includes a roughing excitation unit and a precision excitation unit, and the sensing unit includes a roughing excitation unit and a precision sensing unit. The roughing excitation unit and the precision excitation unit are located on the same code channel, and the roughing sensing unit and the precision sensing unit are located on the same code channel. The axial distance between the roughing excitation unit and the precision sensing unit is equal to the axial distance between the precision sensing unit and the precision excitation unit. During operation, the rotor rotates relative to the stator. Excitation signals of different frequencies are input to the roughing and precision excitation units, and the coupling receiving unit outputs the sensing signal. The absolute angular displacement value is obtained by calculating the signal. This invention can reduce the sensor size while reducing cumulative error.
Owner:CHONGQING UNIV OF TECH

Excitation type series excitation linear motor

ActiveCN224319229UPropulsion systemsLinear motionMagnetic field coupling
The utility model relates to motor technical field especially relates to a kind of excitation type series excitation linear motor, including shell and its inside stator coil and motional coil and the drive shaft axially slidingly connected in shell. Limiting piece that shell is equipped with limit the circumferential movement of drive shaft, the first end of drive shaft is connected with motional coil by penetrating into shell interior, and the second end of drive shaft penetrates out shell exterior. Stator coil is set in the outside of motional coil, and there is air gap between the two, and the series excitation mode connection between the two, the excitation magnetic field coupling between stator coil and motional coil makes motional coil drive shaft linear motion, compared with the existing permanent magnet linear motor, no longer rely on permanent magnet to form magnetic field, effectively reduce the manufacturing cost of motor, avoid the assembly and failure problem related with permanent magnet, and with high thrust density, application range is wider, especially can be applied to the field such as needleless injection and electromagnetic riveting of higher thrust intensity requirement.
Owner:YANGZHOU ZHIHUI INTERNET INFORMATION TECH CO LTD

An integrated electromagnetic ultrasonic monitoring device

PendingCN122282088AMagnetic field couplingThermal insulation
This invention discloses an integrated electromagnetic ultrasonic monitoring device, which integrates transducer components and hardware circuitry within a compact, enclosed housing. A multi-layered shielding structure achieves directional magnetic circuit constraint and magnetic flux leakage suppression. Simultaneously, this invention constructs a gradient thermal resistance architecture to passively block external heat flow. A thermal insulation medium is arranged between the magnetic shield and the base plate of the housing, cutting off the heat conduction shortcut formed by the high permeability material, thus decoupling and coordinating electromagnetic shielding and thermal protection functions within a limited space. This invention features a compact, integrated design and is suitable for online health monitoring of equipment under high-temperature, strong magnetic field coupling conditions.
Owner:JIANGLI TECHNOLOGY TRANSFER CENTER (ZHENJIANG) CO LTD

Underground magnetic induction voice communication system based on Zynq architecture

The application provides an underground magnetic induction voice communication system based on a Zynq architecture, belongs to the underground magnetic induction communication field, and constructs a complete software and hardware cooperative processing platform, which comprises a Zynq chip, a voice module, a radio frequency module and an automatic alignment module; the application makes full use of the advantages of the heterogeneous platform of the Zynq chip, and efficiently executes the complex system control and signal processing tasks on the PS end and the PL end respectively; at the same time, the radio frequency module adopts a direct sampling architecture, which not only effectively improves the data processing efficiency, but also makes the system highly integrated to meet the requirements of portable devices; on the basis, the automatic alignment module can automatically ensure that the coil always keeps in the best magnetic field coupling in the working process of the system, and improves the reliability of the communication link. Based on this, the application realizes a magnetic induction voice communication system which is specially designed for the underground complex environment, and has high reliability, high integration and high convenience.
Owner:HUAZHONG UNIV OF SCI & TECH

New energy full-automatic generator set

I. Summary of Dual-Rotor Dual-Permanent-Magnet Generator Set This invention discloses a dual-rotor dual-permanent-magnet fully automatic new energy generator set, belonging to the technical field of power generation equipment. This invention uses a DC backup power supply to initially start a three-phase synchronous motor, driving a permanent magnet generator rotor to rotate and generate electricity. The other permanent magnet rotor couples with the armature magnetic field to form a torque in the same direction, using the electromagnetic braking resistance generated by power generation as thrust to offset most of the operating resistance, significantly reducing the drive load and improving power generation efficiency. The main output terminal of the unit is equipped with a current-limiting and voltage-limiting protection device, stably outputting three-phase four-wire clean energy. Operation requires external initial start-up, resulting in mechanical and electromagnetic losses, which conforms to the law of conservation of energy. II. Summary of Dual-Rotor Dual-Excitation Winding Generator Set This invention discloses a dual-rotor dual-excitation winding fully automatic new energy generator set, belonging to the technical field of power generation equipment. This invention uses a DC backup power supply to initially start a three-phase synchronous motor, driving an electrically excited magnetic pole generator rotor to rotate and generate current. The armature magnetic field couples with the other excitation rotor to generate a torque in the same direction, offsetting the operating resistance of the excitation generator rotor and achieving partial torque balance. After rectification, the unit's power output supplies power to the three-phase synchronous motor and dual-excitation windings, and charges the backup power supply. The main power output terminal is equipped with current-limiting and voltage-limiting protection devices, ensuring a stable output of three-phase four-wire power. This invention utilizes electromagnetic resistance as thrust, significantly improving power generation efficiency. While it requires external initial startup and experiences various losses, it fully complies with the law of conservation of energy.
Owner:刘道新

Electromagnetic riveting gun based on series excited motor

ActiveCN224309548UElectric machineMagnetic field coupling
The utility model relates to the technical field of electromagnetic riveting, especially relates to a kind of electromagnetic riveting gun based on series excited motor. Including gun body shell, riveting punch being set in the front end of gun body shell in through, and driving assembly integrated in the inside of gun body shell. Driving assembly includes series excited linear motor, its stator coaxial sleeve is set in the outside of rotor, rotor excitation coil in rotor and stator excitation coil in stator are connected in series between, and the reciprocating linear motion of rotor along axial is made by the excitation magnetic field coupling between the two. The rear end of riveting punch is connected to the front end of rotor, to convert the thrust of rotor into the impact pressure required when riveting. This electromagnetic riveting gun structure is simple, and stability is high, has the power output of high efficiency strong, can satisfy the riveting demand of high strength, simultaneously possess the characteristics of high speed and high accuracy, series excited linear motor is small in size, is integrated in the inside of gun body, need not additional drive electric cabinet, improve the portability of equipment whole, easy to operate and maintain.
Owner:YANGZHOU ZHIHUI INTERNET INFORMATION TECH CO LTD

Semiconductor process chamber and semiconductor process device

The present disclosure relates to the field of semiconductor technology, and more particularly to a semiconductor process chamber and semiconductor process equipment. The semiconductor process chamber includes a chamber body, a carrier, a magnetron assembly, a bias magnetic field assembly, and a magnetic shielding member. The bias magnetic field assembly is located inside the chamber body and surrounds the carrier. The magnetic shielding member is located above the bias magnetic field assembly and is configured to guide the bias magnetic field above the bias magnetic field assembly, thereby reducing the magnetic field coupling of the bias magnetic field assembly and the magnetron assembly. The semiconductor process equipment includes the above semiconductor process chamber. The semiconductor process chamber and semiconductor process equipment can reduce or even avoid the magnetic field coupling superposition of the bias magnetic field assembly and the magnetron assembly, ensuring the uniformity of plasma concentration and sputtering rate on the target surface as much as possible, reducing or even avoiding abnormal fluctuations in voltage applied to the target, and ensuring the uniformity of the corrosion depth on the target surface and the uniformity of the magnetic thin film deposited on the surface of wafer.
Owner:BEIJING NAURA MICROELECTRONICS EQUIP CO LTD

Antenna module and wireless charging device

ActiveCN224304898UMaterial nanotechnologyBatteries circuit arrangementsMagnetic field couplingWireless
The utility model provides a kind of antenna module and wireless charging equipment, the antenna module includes wireless charging coil wiring and nanocrystal component, the wireless charging coil wiring is located above the nanocrystal component, the nanocrystal component is in laminated arrangement, including first nanocrystal layer, second nanocrystal layer, third nanocrystal layer and fourth nanocrystal layer, the fourth nanocrystal layer is annularly arranged, the wireless charging coil wiring is located in the annular ring area of the fourth nanocrystal layer.The antenna module and wireless charging equipment of the utility model not only facilitate magnetic field coupling, improve charging efficiency, but also can improve antenna inductance, reduce line resistance.
Owner:KUNSHAN INNOWAVE COMMUNICATION TECHNOLOGY CO LTD

Coil communication and energy transfer system for in-vitro programmable instrument

PendingCN122440993ATransceiverMagnetic field coupling
The present application relates to a coil communication and energy transmission system for an external programmer, which is used for communication with and energy transmission to an internal stimulator, and comprises a controller, a transceiver, a signal processing device and an external coil, wherein: the controller is electrically connected with the transceiver, and sends a control signal to the transceiver; the transceiver is communicatively connected with the signal processing device, and is configured to receive the control signal, convert the control signal into a high-frequency control signal, and send the high-frequency control signal to the signal processing device; the signal processing device is electrically connected with the external coil, receives and processes the high-frequency control signal, and sends the processed high-frequency control signal to the external coil; and the external coil, in response to receiving the processed high-frequency control signal, sends a communication and energy transmission signal to the internal stimulator through magnetic field coupling, and receives a working state signal fed back by the internal stimulator.
Owner:BEIJING LEADING INNOVATION MEDICAL VALLEY CO LTD

Magnetic light circuit module and circuit toy set

ActiveCN224399994UToysEducational modelsMagnetic field couplingElectrical connection
This utility model relates to the field of electronic circuit teaching toys, and more particularly to a magnetic lamp circuit module and circuit toy set, including a base with a power interface on its side for connecting an external power cord, and a transmitting coil electrically connected to the power interface inside the base; a light-emitting component including a light-transmitting shell, a receiving coil disposed inside the light-transmitting shell, and a light source electrically connected to the receiving coil; wherein the light-emitting component is detachably placed on the base; when the light-emitting component is placed on the base, the receiving coil is within the range of the changing magnetic field generated by the transmitting coil, and an induced current is generated in the receiving coil through electromagnetic induction, driving the light source to emit light. This solution has the advantages of intuitively demonstrating the non-contact energy transfer process, realizing the brightness response of the light-emitting component with distance through electromagnetic induction, and enhancing children's understanding of the magnetic field coupling mechanism.
Owner:ZHEJIANG DREAMWEAVER MOON TOYS CO LTD

Liquid lithium lead loop design optimization method, device, platform and storage medium in strong magnetic environment

PendingCN122334110AMagnetic field couplingMagnetohydrodynamics
This invention discloses a method, apparatus, platform, and storage medium for design optimization of liquid lithium-lead circuits under strong magnetic environment. The method includes: establishing a liquid lithium-lead circuit model, defining basic model parameters, operating boundary conditions, and temperature-dependent physical properties of liquid lithium-lead within the model; dividing the model into multiple computational units, and obtaining the local magnetic field vector at the spatial location of each computational unit based on the strong magnetic field environment parameters under tokamak device operating conditions; obtaining the strong magnetic field coupling calculation results of the liquid lithium-lead circuit model based on the local magnetic field vector at the spatial location of each computational unit; and modifying the model based on these results to output the final liquid lithium-lead circuit design result. This achieves magnetohydrodynamic and thermal-fluid coupling design of the liquid lithium-lead circuit, improving the reliability of the circuit design.
Owner:聚变新能(安徽)有限公司

A capsule robot device based on built-in coil excitation force driving

ActiveCN224523075UMagnetic field couplingModel control
The utility model provides a kind of capsule robot device based on coil built-in exciting force drive, it is related to medical technical field.The utility model controls the axial pre-tightening force of magnetic field coupling drive module by pre-tightening force control module, effectively promotes the magnetic mechanical coupling efficiency of material, enhances the linearity and stability of exciting force output, secondly, by dynamic feedback control module, the motion state of capsule robot device is accurately controlled, closed-loop control is realized, and motion control precision is improved, then, by motion control module, the switching of the basic motion state and fixed-point fixed motion state of capsule robot device is realized, the positioning and inspection efficiency of pathological change position are improved, finally, by multi-module collaborative integration, device energy density is greatly improved, and high-reliability miniature driving solution is provided for robot endoscope, targeted drug delivery and other minimally invasive medical scenarios.
Owner:UNIV OF SCI & TECH BEIJING

A dual-rotor hybrid excitation flux-switching permanent magnet motor with double-C staggered teeth and leakage flux control

ActiveCN120511929Bcompact structureflexible controlMagnetic circuit rotating partsElectric machinesMagnetic field couplingElectric machine
This invention relates to the field of permanent magnet motor technology, and more particularly to a dual-rotor hybrid excitation flux-switching permanent magnet motor with double-C staggered tooth and leakage flux control. It includes an outer rotor, a middle stator, and an inner rotor, with the middle stator positioned between the outer and inner rotors. The outer rotor has a plurality of first salient poles evenly distributed, and the inner rotor has a plurality of second salient poles evenly distributed. The middle stator includes m double-C staggered tooth iron cores, m rectangular leakage magnet cores, n tangentially magnetized Type I permanent magnets, an armature winding, a first set of excitation windings, and a second set of excitation windings. This invention not only retains the advantages of a compact structure and high efficiency of a dual-rotor flux-switching permanent magnet motor, but also, through the addition of the electrically excited excitation windings, makes the air gap magnetic field smooth and adjustable, effectively solving the problem of magnetic field coupling when the inner and outer motors work simultaneously. This also broadens the speed regulation range when the inner and outer motors work individually to a certain extent. Furthermore, the addition of leakage magnet cores solves the problem of strong permanent magnet magnetomotive force and difficulty in weakening the magnetomotive force.
Owner:NANTONG UNIV

An efficient magnetic domain refinement method for ultra-low loss grain-oriented silicon steel

PendingCN122081790Aavoid it happening againevenly distributedMaterial nanotechnologyMagnetic materialsAbnormal grain growthMagnetic field coupling
This invention discloses an efficient magnetic domain refinement method for ultra-low loss oriented silicon steel, relating to the field of steel material technology. The method includes: raw material preparation; hot rolling and final rolling; multi-stage thermomechanical processing; controlled suppression phase formation; secondary re-junction and magnetic field-induced selective growth; surface microstructure fabrication; low-temperature domain refinement annealing and alternating magnetic field coupling; segmented cooling and quality inspection. This invention, through controlled nanoscale suppression phase engineering, forms a high-density and uniform nanoscale suppression phase within the matrix, serving as pinning sites for grain boundaries and subgrain boundaries. This controls grain boundary migration dynamics during high-temperature secondary re-junction, overcoming the problems of abnormal grain growth and microstructure instability caused by uneven distribution and large size dispersion of traditional suppression phases. This avoids the root cause of large magnetic domains, improves the controllability and repeatability of the secondary re-junction process, obtains a more uniform orientation grain size distribution, and reduces localized magnetic domain enlargement and iron loss fluctuations caused by uneven grain size.
Owner:HAIAN HUACHENG NEW MATERIALS CO LTD

A bearing support structure for a deep-sea motor and a motor

PendingCN122268068ASupports/enclosures/casingsMagnetic field couplingClassical mechanics
The application provides a bearing support structure for a deep-sea motor and a motor, and belongs to the technical field of deep-sea motors, and comprises a flanged shaft sleeve, a cylindrical section for supporting the radial load of a rotating shaft, and a flange section for limiting the axial position; a ceramic thrust ring is arranged at the end of a rotor assembly and is used for bearing the axial load of the rotor assembly; a water absorption expansion reserved gap is arranged between the inner surface of the cylindrical section of the second flanged shaft sleeve and the outer surface of the rotating shaft; an auxiliary support gap is arranged between the flange section of the second flanged shaft sleeve and the end cover of the motor, the independent sealing of the stator and the rotor and the magnetic field coupling transmission are adopted, the shaft extension end dynamic sealing is completely cancelled, and the sealing leakage problem under high pressure in deep sea can be fundamentally solved; the double axial support design, i.e., the main bearing of the ceramic thrust ring and the auxiliary bearing of the flanged flange, provides redundancy.
Owner:代玉群

Foldable electronic device and antenna system for same

This application provides a foldable electronic device and an antenna system for same. The antenna system includes a main antenna element and a parasitic antenna element. The main antenna element is an antenna structure having a radiation characteristic of a current loop antenna, and includes a feed point and a first radiating branch disposed on a first body of the electronic device. The parasitic antenna element includes a second radiating branch disposed on a second body of the electronic device. In a folded state, the first radiating branch and the second radiating branch are at least partially overlapped. The first radiating branch is configured to perform magnetic field coupling with the second radiating branch, to form current loop radiation on both the first radiating branch and the second radiating branch, and a current direction in a current loop formed on the first radiating branch is the same as a current direction in a current loop formed on the second radiating branch. In this manner, longitudinal currents in a same direction may be simultaneously excited on a foldable grounding plate of the electronic device, to achieve a purpose of reducing or eliminating energy consumed in the folded state and increasing antenna efficiency, effectively resolving a problem of poor antenna efficiency in a low band of the electronic device in the folded state.
Owner:HONOR DEVICE CO LTD

Magnetic adsorption guiding type humanoid robot wireless charging docking mechanism

ActiveCN224391193UManipulatorHumanoid robot naoMagnetic field coupling
The utility model relates to intelligent robot energy management technical field especially relates to a kind of magnetic attraction guiding formula humanoid robot wireless charging docking mechanism, including placement plane, humanoid robot and mobile frame etc., mobile frame bottom is equipped with several universal wheels, mobile frame is placed on placement plane by universal wheel, mobile frame top is connected with support plate, support plate top is equipped with electric push rod, humanoid robot back is equipped with first magnetic attraction inductor, the piston rod end of electric push rod is connected with mounting plate, second magnetic attraction inductor is installed in mounting plate front side, cable is connected in mounting plate rear side, mobile frame bottom is provided with the movement component for adjusting the position of mobile frame. Gradient magnetic field coupling of first magnetic attraction inductor and second magnetic attraction inductor makes two inductors produce axial self-alignment force, automatically corrects the angle deviation of robot, to realize non-contact type pose real-time tracking, solve the interface offset problem of biped robot.
Owner:GUANGDONG TITAN INTELLIGENT POWER CO LTD

Auxiliary force starting device and method for permanent magnet coupling

ActiveCN116231956BPrime moverSeparated state
The application discloses an auxiliary strong starting device and method for a permanent magnet coupling. The auxiliary strong starting device cooperates with the permanent magnet coupling to transmit kinetic energy output by a prime mover to a load device, and comprises a hollow shaft, a dynamic clutch disc, a static clutch disc and a centrifugal assembly. When the rotation speed of the prime mover is less than a threshold value, the static clutch disc and the dynamic clutch disc remain in a coupling state to output the kinetic energy output by the prime mover to an input shaft of the load device in a mechanical coupling mode. When the rotation speed of the prime mover is greater than or equal to the threshold value, the centrifugal assembly drives the dynamic clutch disc to move, so that the static clutch disc and the dynamic clutch disc are in a separation state, and the kinetic energy output by the prime mover is output to the input shaft of the load device in a magnetic field coupling mode.
Owner:SHANXI JIANGHUAI HEAVY IND

Integrated circuit packaging with insulation structure to control gap height and die tilt

ActiveUS12672592B2EpoxyMagnetic field coupling
A current sensor integrated circuit (IC) package includes an insulation structure disposed between a semiconductor die and a lead frame to control gap height and prevent the die from tilting and dropping the magnetic field coupling between the die the primary conductor. An insulation structure is disposed between the die and the lead frame such that the die remains level and magnetic coupling remains intact. An insulation structure may control the gap height between the lead frame and the die evenly during transfer molding, by supporting the die across its length and / or width. Epoxy dots are also or instead used to control the gap height and eliminate die tilt.
Owner:ALLEGRO MICROSYSTEMS LLC

An aircraft active stability control system and method based on multi-layer rotating magnetic field coupling airborne eddy current damping

PendingCN122276140AMagnetic field couplingFlight vehicle
This invention discloses an active stability control system and method for aircraft based on multi-layer rotating magnetic field coupling with airborne eddy current damping. The system employs at least two sets of counter-rotating magnetic field generating units to construct a three-dimensional alternating rotating magnetic field inside and outside the aircraft. This magnetic field, inducing eddy current damping force and attitude recovery torque, interacts with airborne metal damping components fixedly mounted on the aircraft body. Basic attitude disturbance rejection is provided by utilizing the gyro's axis-fixed property, and counter-rotating angular momentum is used to cancel out anti-torque. Precise attitude and position control is achieved by dynamically adjusting the rotational speed and phase difference of the magnetic field units. This invention decouples propulsion and attitude stabilization functions, enabling the aircraft to achieve long-term hovering in all scenarios and strong wind resistance even at low or zero propulsion power, making it suitable for various low-altitude and high-altitude aircraft.
Owner:SICHUAN NINGGUOCHENG TECHNOLOGY CO LTD

Balun

ActiveCN115622535BTransformerMagnetic field coupling
The present application provides a kind of balanced-unbalanced transformer that can match the impedance between the circuit of front stage and the circuit of rear stage in wider frequency band.The balanced-unbalanced transformer has: the first wiring, with the first end connected with the first balance line of one of transmission balanced signal and the second end connected with the second balance line of another of transmission balanced signal;The second wiring has the first end grounded and the second end;The third wiring has the first end connected with the second end of the second wiring and the second end connected with the unbalanced line of transmission unbalanced signal, and is electromagnetically coupled with the second wiring;The first capacitor has the first end connected with the first end of the third wiring and the second end grounded;And the second capacitor has the first end connected with the second end of the third wiring and the second end grounded, and the first wiring is electromagnetically coupled with at least one of the second wiring and the third wiring.
Owner:MURATA MFG CO LTD

High and low voltage distribution cabinet

PendingCN122456324AMagnetic field couplingLow voltage
The application relates to the technical field of power distribution cabinets, and provides a high-low voltage power distribution cabinet which comprises a cabinet body, a plurality of incoming line seats and shielding plates, the plurality of incoming line seats are arrayed and installed in the cabinet body and at the bottom of the cabinet body, each incoming line seat is provided with a first mounting block and a second mounting block, the first mounting block is used for assembling a first cable, the second mounting block is used for assembling a second cable, and the voltage of the second cable is lower than that of the first cable; each shielding plate is vertically installed with one incoming line seat, the shielding plate separates the first mounting block and the second mounting block in the length direction, and the shielding plate is used for realizing electromagnetic shielding between the first cable and the second cable. The radiation electromagnetic field and the operating transient pulse interference generated during the work of the high-voltage first cable can be absorbed, reflected and eddy current offset by the shielding plate, so that electric field coupling and magnetic field coupling crosstalk to the low-voltage second cable is avoided, and the high-low voltage cable isolation specification of compact GIS and miniature high-low voltage power distribution cabinets is met.
Owner:CHANGSHA UNIVERSITY