2121results about "Transformers" patented technology

A charging bench includes three coils that partially overlap, in superposed planes. An electrical feed makes it possible to supply the coils with an AC current from the mains. A portable device to be charged is placed on the upper side of this charging bench. This device includes a winding intended to receive the electrical charging, and a ferrite protective screen. One of the coils (Bb) is selected to emit the magnetic charging flux toward the mobile phone. The selection is carried out via the emission of a series of pulses by at least one of the coils and comparison of return signals with a reference threshold. This comparison also enables one of the other coils (Ba, Bc) to be selected or both of these other two coils (Ba, Bc) to be used to receive a flux for communicating information originating from the portable device to be charged.

The invention discloses a large-current inductor based on thermal actuation multidirectional sealing compensation, and particularly relates to the technical field of inductor parts, the large-current inductor comprises an inductor lower cover, an inductor upper cover, two sliding strips and a multidirectional compensation piece, and the inductor upper cover is arranged above the inductor lower cover; the two sliding strips slide on the inner wall of the inductor lower cover; and one side of each sliding strip is provided with a multidirectional compensation piece. Through the multidirectional compensation piece, the multidirectional compensation mechanism obviously enhances the adaptability of the joint of the inductor upper cover and the inductor lower cover to thermal deformation in different directions, so that the sealing compensation capability of the inductor under multidirectional thermal expansion and cold contraction is more excellent, and the sealing durability of the inductor shell is greatly improved; therefore, the problems that the sealing compensation capacity of the inductor is insufficient under multi-directional thermal expansion and cold contraction, and the sealing durability of the inductor shell is poor are solved.

The utility model relates to current transformer body ring part main insulation wrapping and overturning equipment, an overturning fixing mechanism comprises an overturning seat, first supports are arranged on two sides of one end of the overturning seat, second supports are arranged on two sides of the other end of the overturning seat, first clamping assemblies are arranged on the first supports and the second supports, and second clamping assemblies are arranged on the second supports. The first clamping assemblies are arranged on the two sides of the middle of the turnover base and provided with movable first clamping blocks, the second clamping assemblies are arranged on the two sides of the middle of the turnover base and provided with movable second clamping blocks, the moving direction of the second clamping blocks is perpendicular to the moving direction of the first clamping blocks, the turnover driving mechanism is arranged on the moving base, and the turnover base is arranged on the turnover driving mechanism. According to the device, the ring part of the transformer body can be turned over conveniently and quickly, the production efficiency is improved, and meanwhile, the main insulation binding process is not influenced.

The invention provides a magnetic core mutual inductor with a magnetic core convenient to replace, and relates to the technical field of magnetic core mutual inductors. The magnetic core mutual inductor with the magnetic core convenient to replace comprises a base. Through the matching design of the limiting blocks between the base sinking groove and the connecting seat and the circumferentially distributed limiting grooves, the connecting seat can be positioned along a plurality of preset angles, the magnetic core can be adaptively adjusted along with the angle of a mounting base plane, and the magnetic core can be quickly positioned and locked by adopting a quick locking structure that the upper shell and the lower shell are hinged and matched through a transverse and longitudinal dual positioning and locking mechanism. Opening and closing of the upper shell and the lower shell can be completed through one-hand operation, the disassembly and assembly time for magnetic core replacement or maintenance is greatly shortened, through collaborative design of a graphene heat conduction layer, a phase change heat storage layer and a flexible buffer layer, heat conduction and absorption capacity are enhanced, meanwhile, thermal expansion stress is counteracted through a flexible material, heat dissipation efficiency improvement and structural reliability are both considered, and the application range is wide. And the technical defects of high-temperature accumulation and material deformation easily caused by a single heat dissipation layer design are overcome.

The invention provides a coil module and electronic equipment. Relates to the technical field of circuit boards. A high-speed signal line and a wireless charging coil are integrated in the same coil module. The coil module can comprise a substrate and a metal layer formed on one side of the substrate, the metal layer comprises a thick metal area, a thin metal area and a transition area located in a junction area of the thick metal area and the thin metal area, a wireless charging coil is arranged in the thick metal area, and a high-speed signal line is arranged in the thin metal area. The first nanocrystal and the second nanocrystal are oppositely arranged on the two sides of the substrate, at least part of the periphery of the wireless charging coil is covered with the first nanocrystal, the first nanocrystal extends to the position above the transition area, and at least part of the wireless charging coil is covered with the second nanocrystal. The integration level can be improved, space resources are saved, and the high-speed signal line and the wireless charging coil are pulled away through the transition area without affecting the signal quality of the high-speed signal line and the wireless charging coil.

A magnetic alignment system can include a primary annular magnetic alignment component and a secondary annular magnetic alignment component. The primary alignment component can include an inner annular region having a first magnetic orientation, an outer annular region having a second magnetic orientation opposite to the first magnetic orientation, and a non-magnetized central annular region disposed between the primary inner annular region and the primary outer annular region. The secondary alignment component can have a magnetic orientation with a radial component. Additional features, such as a rotational magnetic alignment component and / or an NFC coil and circuitry can be included.

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.

The invention provides a primary resonance elimination device of a power distribution network voltage transformer and a management and control method, and relates to the technical field of voltage transformer resonance elimination. The primary resonance elimination device comprises a primary resonance elimination resistor, a primary resonance elimination power electronic device, a standby resonance elimination resistor and a standby resonance elimination power electronic device; the primary resonance elimination resistor and the primary resonance elimination power electronic device are connected in series and then are connected in series between a neutral point of the power distribution network voltage transformer and a ground wire; the standby resonance elimination resistor and the standby resonance elimination power electronic device are connected in series, one end of the standby resonance elimination resistor and the standby resonance elimination power electronic device which are connected in series is connected with a neutral point of the power distribution network voltage transformer, and the other end is grounded; the primary resonance elimination device further comprises a current transformer and a temperature sensor; the temperature sensor is used for monitoring the temperature values of the primary resonance elimination resistor and the standby resonance elimination resistor; the current transformer is assembled on a line where the primary resonance elimination resistor and the standby resonance elimination resistor are grounded together and used for monitoring the value of current flowing through the primary resonance elimination device.

The invention discloses an anti-offset wireless charging method, which comprises the following steps of: constructing a transmitting coil array as a charging end, detecting a relative position between a receiving coil of equipment needing wireless charging and the charging end, calculating offset data of the receiving coil, and taking a current state of each sub-coil in the transmitting coil during charging as a decision variable; constructing a dual-objective optimization mathematical model taking the minimum mutual inductance deviation and the maximum system transmission efficiency as optimization objectives, solving the dual-objective optimization mathematical model by adopting a genetic algorithm, searching to obtain a Pareto optimal solution set, selecting the Pareto optimal solution set, and controlling the current state of a transmitting coil in a charging end; through a decision variable control mechanism based on the sub-coil current state, the control granularity is refined from the whole coil unit to the sub-coil level, so that the system can dynamically adjust the current distribution mode in the unit according to the tiny offset of the receiving coil, local fine tuning of the magnetic field intensity is realized, and the precision of the magnetic field intensity is improved. And the coupling requirement under the complex offset working condition can be effectively met.

A power transmitter for wireless power transfer includes a control and communications unit, a vehicular power input regulator, an inverter circuit, at least one coil, a shielding, a housing, and a removable front plate. The housing is configured to house, at least in part, one or more of the control and communications unit, the invertor circuit, the at least one coil, the shielding, or combinations thereof. The removable front plate is configured to mechanically connect to the housing, the removable front plate including at least one magnet, the at least one magnet configured to attract a receiver magnet when a power receiver is proximate to the removable front plate.

A system for inductive energy transmission may include a stationary induction charging device, a mobile induction charging device, and a positioning device configured to detect a relative position of respective charging coils of the charging devices during charging. The positioning device may include a transmitting device and a receiving device that are each arranged in a respective one of the charging devices. The transmitting device may include at least two transmitters that simultaneously emit a respective transmission signal with an associated predetermined frequency. The receiving device may include a receiver configured to output a superimposition of all received transmission signals as a time-dependent received signal. The positioning device may be configured to i) determine an associated amplitude for each transmission signal from the time-dependent received signal and / or ii) provide a position information item from the determined amplitudes. The position information item may represent the relative position of the coils.

A motor vehicle including a mobile induction charging device is disclosed. The motor vehicle is configured to: receive alignment fields generated by stationary induction charging devices of parking spaces of a parking lot and to detect the signal strength and alignment frequency of the alignment fields, recognize based on a stronger alignment field and the alignment frequency of the stronger alignment field that the mobile induction charging device is to be aligned with the stationary induction charging device associated with the parking space as it approaches one of the parking spaces, and output a navigation instruction for aligning the motor vehicle on the parking space via the alignment field associated with the approached parking space.

A wireless power system has electronic devices that mate with each other to transfer wireless power. Each device may have a wireless power coil. Alignment magnets may be used to magnetically attach devices to each other so that the coils in the devices are aligned with respect to each other for wireless power transfer. The system may include first, second, and third devices. The first and third devices may have fixed alignment magnets with poles of opposite magnetic polarity that allow the first and third devices to be attached to each other so that their coils are aligned. The second device may have a reconfigurable alignment magnet that is operable in a first mode in which the second device is magnetically attached to the first device and a second mode in which the second device is magnetically attached to the third device.

Positioning systems and methods for charging an electric vehicle are described. A resonator assembly has a position monitoring region and a plurality of resonators distributed within the position monitoring region, each resonator having a resonator location in the position monitoring region, wherein each said resonator is configured to transmit a locator signal having a signal - amplitude and an assigned locator signal characteristic associated with the corresponding resonator location. A reader assembly has a receiver configured to receive the locator signal from at least one resonator of the plurality of resonators, and a processor configured to process a distribution of the received locator signals, to determine a position of the reader assembly relative to the resonator assembly, based on: the signal amplitude of the received locator signals; and the assigned locator signal characteristic of the received locator signals.

A multilayer inductor is provided. The multilayer inductor includes a multilayer winding portion comprising a plurality of coil layers that are vertically stacked, and having an inner surface that defines a hollow of the plurality of coil layers and having an outer surface that defines an outer side and a magnetic compensator made of a soft magnetic material and comprising a magnetic wall located at at least one of the inner surface or the outer surface of the multilayer winding portion.

The invention discloses a transformer and inductor integrated component, an inverter and electrical equipment, and the transformer and inductor integrated component comprises a magnetic core housing which comprises a first plate body and a second plate body which are oppositely distributed in a first direction, an inner side column, a middle winding column and an outer side column which are distributed at intervals are connected between the first plate body and the second plate body, the middle winding column is arranged around the inner side column, and the outer side column is arranged around the middle winding column; the primary winding is wound outside one of the inner side column and the middle winding column, and the secondary winding is wound outside the other one of the inner side column and the middle winding column. According to the transformer and inductor integrated component, the voltage transformation function and the resonance inductance function can be achieved, the overall size of the transformer and inductor integrated component can be reduced, arrangement of the transformer and inductor integrated component is facilitated, the arrangement cost can be reduced, the efficiency of the voltage transformation function can be improved, and the practicability is high. EMC radiation of a transformer and inductor integrated component can be reduced.

Inductor component (100) in SMD package for low-frequency magnetic fields, comprising a housing (102) with a housing base (104) for mounting on a printed circuit board, three windings arranged within the housing (102), in particular essentially orthogonal to each other, along an X, Y and Z winding axis, a plurality of connection contacts (110) arranged on the housing base (104), and a pin configuration with at least two electrical interconnections (130, 132) permanently manufactured within the housing (102), wherein each of the electrical interconnections (130, 132) electrically connects two specific terminal contacts (110) and the terminal contacts (110) are assigned to the winding ends of the X, Y and Z windings, so that each winding can be electrically connected via the terminal contacts (110).

The invention relates to a system (10) for de-icing the blades (14) of the propeller (12) of an aircraft, the system comprising an H-bridge inverter device (40); a rotary transformer (22) comprising a main primary winding (26), a primary measurement winding (28), and a secondary circuit (30) delivering a secondary alternating voltage (Vs); a rectifier device (50); a de-icing device (20); a control device (60) configured to control the switching elements of the inverter device in an out-of-phase manner, using the value of the voltage (Vpm) across the terminals of the primary measurement winding, measured during a measurement interval of predetermined duration starting at the instant (t11,t33) when the inverter device switches from a controlled state to a short-circuit state.

The quantum current transformer based on the optical fiber isolation microwave transmission comprises a high-voltage primary side which comprises a magnetic shielding ring and an NV color center magnetic sensing probe module, and a magnetic sensing probe is arranged in the magnetic shielding ring; at the low-voltage secondary side, the microwave system is used for generating radio-frequency signals in a preset frequency range and transmitting the radio-frequency signals to the NV color center magnetic-sensing probe module, the laser system is used for generating continuous laser and transmitting the continuous laser to the NV color center magnetic-sensing probe module, and the microwave system and the laser system are used in cooperation to drive the NV color center to generate fluorescence signals representing the magnetic field intensity. A fluorescence signal is transmitted to the data processing system to calculate to-be-detected current information; wherein the microwave system is connected with the NV color center magnetic sensing probe module through an optical fiber, the microwave system modulates the radio frequency signal into an optical signal, transmits the optical signal to the NV color center magnetic sensing probe module, and restores the optical signal into the radio frequency signal in the NV color center magnetic sensing probe module to be received. According to the transformer, stable transmission of microwave signals under the high-low voltage isolation condition is achieved, the design is reasonable and exquisite, and the measurement precision is high.

An ignition coil assembly with internal diagnostic features that can be used to monitor and evaluate different aspects of an ignition system and provide continuous feedback. The ignition coil assembly may be a coil-on-plug type device that converts low-voltage battery power into high-voltage ignition pulses, and may include several input terminals, an ignition coil with primary and secondary windings, ignition circuitry, an output terminal, a spark plug connector, and a housing. The ignition circuitry includes an ignition operational circuit and an ignition diagnostic circuit, which in turn has a charging evaluation circuit for monitoring a charging phase, a discharging evaluation circuit for monitoring a discharging phase, and a feedback integration circuit for combining outputs into a multiplexed digital signal that can then be sent to an engine control unit (ECU) or the like over a single output terminal.

An electric machine for a motor vehicle is disclosed, and may include a stator, a rotor rotatably mounted with respect to the stator and having rotor windings for generating a rotor magnetic field, and an active rectifier provided on the rotor. The active rectifier may electrically connect a voltage source present on the rotor to the rotor windings, and may be configured to convert an alternating voltage provided by the voltage source into a direct voltage. The direct voltage may be configured to be utilized during generation of the rotor magnetic field by the rotor windings. The active rectifier may be arranged on or in a cooling section of the rotor. The cooling section may form a heat sink through which a cooling fluid can flow.

The application provides a coil module, an electronic device and a wireless charging system, and relates to the technical field of wireless charging, and aims to solve the problem that the thickness of the wireless charging coil module is relatively large, which is not conducive to the arrangement of other functional devices in the electronic device. The coil module comprises a coil structure; the coil structure comprises a functional layer; along the thickness direction of the coil structure, the functional layer comprises a first wiring sublayer, a second wiring sublayer and an insulating sublayer located between the first wiring sublayer and the second wiring sublayer; the coil structure further comprises a first end, a second end and a plurality of groups of coils connected in series; the first end and the plurality of groups of coils are arranged on the first wiring sublayer, and the outermost group of coils is connected to the first end; the second end is arranged on the second wiring sublayer; a via hole is arranged on the insulating sublayer, and a connecting structure is arranged in the via hole; the innermost group of coils is connected to the second end through the connecting structure in the insulating sublayer, so that the first end is electrically connected to the second end through the plurality of groups of coils connected in series.

Discussed is a wireless charging device which can change the direction of a magnetic field, generated in a transmission coil, through a vertically and horizontally rotatable repeater, and can hold a user terminal in parallel with the repeater, thereby transmitting wireless power in various directions and at various angles. The wireless charging device includes a case, a flat plate core disposed in the case, multiple transmission coils arranged parallel to each other on the flat plate core, a terminal holder including a repeater therein and disposed on the top surface of the case while sloping with respect to the top surface of the case, and a moving member for moving the terminal holder in the direction in which the plurality of transmission coils are arranged.

A residual current device is configured for connection to a power supply network having at least two power supply conductors and includes a switching device for interrupting the at least two power supply conductors, a sensor for detecting residual currents in the at least two power supply conductors, and a control circuit which is designed to detect a residual current between the at least two power supply conductors using the sensor and, when a residual current is detected, to control the switching device to carry out a switching operation.

An ignition coil of a non-equal-thickness iron core structure comprises a shell, a low-voltage head is arranged on the upper portion of the shell, a high-voltage sheath assembly is installed on the lower portion of the shell, a coil assembly is transversely arranged in the shell and filled with epoxy resin, the low-voltage head is located at one end of the coil assembly, and an ignition module is arranged in the shell and close to the low-voltage head. The coil assembly comprises a T-shaped iron core, a primary framework arranged outside the T-shaped iron core in a sleeving mode, a secondary framework arranged outside the primary framework in a sleeving mode, a first C-shaped iron core and a second C-shaped iron core, the first C-shaped iron core and the second C-shaped iron core are arranged outside the secondary framework in a surrounding mode, and the first C-shaped iron core and the second C-shaped iron core are oppositely combined together to form an O shape and are connected to the end of the T-shaped iron core. The thickness of the first C-shaped iron core and the thickness of the second C-shaped iron core are larger than that of the T-shaped iron core. As the C-shaped iron core assembly and the T-shaped iron core are of a non-equal-thickness structure, the T-shaped iron core is thin, so that the space of primary and secondary framework structures on the periphery of the iron core is saved, and the requirement for the electrical performance function of the coil is met.

The invention provides a non-effective grounding voltage transformer and a voltage mutual inductance state monitoring method, the non-effective grounding voltage transformer comprises a main voltage transformer and a zero sequence voltage transformer, the main voltage transformer comprises a primary high voltage winding, a secondary low voltage winding and a secondary protection winding, the zero-sequence voltage transformer comprises a zero-sequence primary winding, a zero-sequence secondary winding and a zero-sequence protection winding; a neutral point of the primary high-voltage winding is electrically connected with one end of the zero-sequence primary winding, a neutral point of the secondary low-voltage winding is electrically connected with one end of the zero-sequence secondary winding, and the other ends of the zero-sequence secondary winding and the zero-sequence primary winding are grounded; one end of the secondary protection winding and one end of the zero-sequence protection winding are grounded, the other end of the zero-sequence protection winding is grounded, and the other end of the secondary protection winding is grounded through the current-sensitive resonance elimination resistor; when a power distribution system is disturbed and attempts to cause resonance, the iron core of the zero sequence voltage transformer is rapidly saturated, which is equivalent to that a resistor is connected in series in a loop, so that a large amount of resonance energy is consumed and a resonance elimination effect is achieved.

Charging devices according to embodiments of the present technology may include a housing including an input configured to receive power from a power source and provide power to internal components of the charging device. The charging devices may include a ferrite. The ferrite may be coupled with electrical ground. The charging devices may also include a conductive coil seated in the ferrite. The conductive coil may be configured to generate an electromagnetic field from an AC signal.

Disclosed are a non-contact rotary transformer and a motor comprising same. A non-contact rotary transformer according to the present invention is a device for connecting a rotor of a motor with an external power source in a non-contact manner, and is characterized by comprising: a core part disposed inside a hollow motor shaft in a coaxial structure with the motor shaft; a primary coil part installed on the outer circumferential surface of the core part; a secondary coil part which is installed on an inner main surface of the motor shaft and surrounds the primary coil part at a predetermined interval (air gap) therefrom; and a rectifier circuit part which is coupled to the motor shaft and rotates in synchronization therewith, and which is electrically connected to the secondary coil part.

The invention discloses an omnidirectional wireless electric energy transmission device, and belongs to the technical field of wireless electric energy transmission. The device comprises a regular octahedron framework and a transmitting coil which is continuously and unidirectionally wound along the edge of the regular octahedron framework, and the winding directions of adjacent triangular frameworks are opposite so as to generate an enhanced magnetic field which is matched with a first resonance compensation network and a high-frequency power supply system to work. A receiving end adopts three groups of coil units which are orthogonally arranged in the same plane and are mutually isolated to form a receiving coil, and each group is connected with an independent second resonance compensation network to form a resonance rectification branch. According to the structure, an omnidirectional uniform magnetic field is generated through unique regular octahedron coil arrangement, so that receiving equipment can be efficiently charged at any angle and position in a large range, and the structure has high tolerance to rotation and offset. The planar orthogonal receiving coil can capture more magnetic flux in a three-dimensional space, the transmission efficiency is improved, cross coupling is effectively restrained, and meanwhile the planar orthogonal receiving coil can be conveniently integrated in a mobile phone, a computer and other devices through the flat design.