354 results about "Coil structure" patented technology

The invention discloses a wireless power transmission coil optimization method and a related system, which can realize automation of coil structure parameters and multi-target global optimization by acquiring a coil geometric parameter space, constructing a comprehensive optimization function and performing iterative search in the coil geometric parameter space. The problems that in traditional design, the number of simulation iterations is large, design efficiency is low, local optimum is prone to occurring, and multiple performance indexes are difficult to balance are effectively solved, coil design efficiency and precision are remarkably improved, and dependence on artificial experience is reduced. Therefore, the number of manual intervention and simulation is remarkably reduced, the coil design efficiency is improved, and the prototype development period of the WPT system is shortened. Besides, iterative search is carried out in the parameter space, so that the whole design space can be effectively explored, a locally optimal solution trap can be jumped out, and a globally optimal or approximately globally optimal coil structure parameter combination can be obtained more possibly.

The invention discloses a frequency mixing sound demodulator based on a curled structure and a use method thereof in the acoustics field, the demodulator is used for separating frequency mixing sound mixed by a plurality of sound waves with preset frequencies according to respective frequencies, and the demodulator comprises an air waveguide for transmitting the sound waves, and blocking structures arranged on two sides of the air waveguide for blocking the sound waves from penetrating, and a plurality of curled structures that capture corresponding preset frequency sound waves; curled structures are arranged in the barrier structure on at least one side of the air waveguide at intervals, one end of each curled structure is open, and the other side is closed; a plurality of cross beams for blocking penetration of sound waves are arranged in each curled structure, and an internal channel of each curled structure is divided into different lengths to serve as different acoustic resonant cavities so as to capture the sound waves with different frequencies; the closed end of each curled structure is a detection end of each preset frequency sound wave. The invention solves the problem that the existing method is difficult to instantly separate the frequency mixing sound signal and carry out information transmission.

The invention discloses a magnetic field chip design method based on a genetic algorithm, and the method comprises the steps: setting genetic algorithm parameters, and setting magnetic field chip target parameters according to actual application demands; generating an initial population, wherein the initial population is a plurality of groups of individuals containing coil parameters; checking constraint conditions of the individuals, wherein the constraint conditions comprise physical constraints and design constraints; the power consumption generated by the coil structures corresponding to the individuals meeting the constraint conditions serves as a fitness function, and the fitness of all the individuals in the current population is evaluated; and judging whether a termination condition is met or not, outputting an individual with the optimal fitness as an optimal combination of coil parameters under the target parameters of the magnetic field chip when the termination condition is met, otherwise, generating a next-generation population, and repeatedly carrying out constraint condition check and fitness evaluation until the termination condition is met. According to the method, the magnetic field chip with the minimum power consumption meeting the magnetic field target can be designed, the design time of the magnetic field coil is greatly shortened, and the design rapidity and flexibility are improved.

A switch device includes a circuit board, a coil structure, a lower cover, an upper cover, an elastic part, and a sliding part. The circuit board gas a through hole running through the circuit board. The coil structure is disposed on the circuit board and surrounds the through hole. The lower cover us located over the coil structure. The upper cover is disposed on the lower cover. The lower cover and the upper cover form an accommodating space. The elastic part is located in the accommodating space. The sliding part passes through an opening of the upper cover and is configured to slide relative to the lower cover along a direction. The sliding body is configured to drive the sliding part to pass through the through hole along the direction to generate a switch signal corresponding to an inductance variance of the coil structure.

The utility model relates to a radio frequency coil assembly for magnetic resonance scanning equipment and the magnetic resonance scanning equipment. The radio frequency coil assembly comprises a first coil structure and a second coil structure, the first coil structure can be worn on a scanning part of a detected object, and the size of the first coil structure can be matched with the size of the scanning part, so that the first coil structure is closer to and fits the scanning part, and magnetic resonance signals emitted by tissues can be received more efficiently; a higher image signal-to-noise ratio is obtained; the second coil structure is separated from the first coil structure and surrounds the outer side of the worn first coil structure, and a certain gap is formed between the second coil structure and the first coil structure, that is, the size of the second coil structure can be made to be larger, so that the device can adapt to detected objects with more body types, and the proportion of applicable people is increased; and moreover, the problem of claustrophobia of the detected object can be relieved, the comfort of the detected object is improved, and the use is more convenient.

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.

The invention discloses a cylindrical material conveying device based on a horizontal linear motor, and belongs to the field of mechanical design and manufacture, the device comprises a magnetic flux switching linear motor, a stator supporting device, a material supporting device, a material pushing device and a sensor device, and the magnetic flux switching linear motor is a driving source and is of a horizontal bilateral structure; the reinforcing ribs in the stator supporting structure adopt a dual-function coupling design, so that the cost can be reduced and the efficiency can be improved; the material supporting device is fixedly connected with the stator supporting structure and is in linear contact with the cylindrical material; the pushing device is fixedly connected with the linear motor rotor and is connected with the stator supporting structure through a linear guide rail sliding block; the sensor device is located on one side of the linear motor, and a signal line is of a spring coil structure. The rotor is simple in structure, easy to maintain, good in natural heat dissipation effect, compact in overall structure and high in space utilization rate, and the problems that an existing same-type cylindrical material conveying device is complex in rotor structure, poor in natural heat dissipation effect and low in overall structure space utilization rate are solved.

The invention discloses a voltage-controlled oscillator and a sub-sampling phase-locked loop, and relates to the technical field of phase-locked loops. The voltage-controlled oscillator comprises two negative resistance transistors and a three-layer coil structure; the three layers of coil structures are respectively a drain coil, a grid coil and a source coil from outside to inside; the gate coil and the drain coil are both of an octagonal structure, and the source coil is of a splayed structure; the drain coil, the source coil and the grid coil are all provided with center taps, the center tap of the source coil is connected with a power voltage module, the center tap of the drain coil is grounded, and the connection point of the center tap of the source coil and the power voltage module and the connection point of the center tap of the drain coil and the ground are located on the same side of the drain coil. And the two negative resistance transistors are positioned on the other side of the drain coil. According to the invention, automatic alignment of second harmonics in a wide frequency range is realized. And meanwhile, an extra chip area is not increased.

The present invention is a mechanical energy harvesting generator of electricity, comprising a coil structure including a winding of an electrical conductor disposed over a coil length, and capable of inducing electricity therein in the presence of a moving magnetic field provided by a movable magnet, wherein the winding includes an aperture about which the electrical conductor is wound and having a path through the coil structure substantially parallel with the length that receives the movable magnet. A magnet is disposed to be movable in response to motions applied externally to the coil structure along the path through the coil aperture, and having magnetic poles disposed to provide the moving magnetic field experienced by the coil as the magnet is moved along the path, further characterized in that a metallic glass layer is disposed around the coil structure and a winding outer surface.

Provided is a coil structure including an inductor coil having a self-bonding wire structure and including a central hole, a detection coil electromagnetically coupled to the inductor coil, a support unit surrounding at least a portion of an outer periphery of the inductor coil, and a housing including an upper magnetic body and a lower magnetic body facing each other in a vertical direction with the inductor coil therebetween to form an inner space in which the inductor coil and the detection coil are provided, the upper magnetic body and the lower magnetic body each including a protrusion inserted into the central hole of the inductor coil.

The invention provides a coil array and a wireless power transmission system, the coil array comprises at least one coil structure, the coil structure comprises three coil units, and the three coil units respectively form three sides of the same triangle so as to form the coil structure; wherein each coil unit in the same coil structure is configured to allow the current flowing through the coil unit to form a current loop, and the coil units in the same coil structure are the same or different; moreover, each coil unit in the same coil structure is configured to be excited by an independent amplitude-modulated wave and obtain a driving current, so that the coil array is allowed to be configured to obtain optimal magnetic field distribution and magnetic field polarization according to different phases and current directions and form a three-dimensional rotating magnetic field.

The invention relates to a power generation box-type transformer substation convenient to assemble, and belongs to the technical field of box-type transformers. Comprising a box body and a transformer assembly, and the transformer assembly is arranged in the box body and comprises an iron core and a sectional coil; each phase of coil of the sectional coil is divided into an upper section of sub-coil and a lower section of sub-coil, and the upper section of sub-coil and the lower section of sub-coil are two sections of detachable series structures; the upper-section sub-coil and the lower-section sub-coil are integrally formed by adopting a modularized insulating framework, axial radiating fins are integrated on the outer wall, and an insulating gasket is attached to the inner wall of the upper-section sub-coil and the lower-section sub-coil; sliding blocks matched with the horizontal guide rails of the box body mounting bracket are arranged on the outer walls of the upper-section sub-coil and the lower-section sub-coil, can slide into corresponding positions of the iron core along the horizontal guide rails, and are matched with vertical positioning clamps for fixation; the transformer coil structure is mainly improved, and the problems of high coil hoisting difficulty, complicated structure assembly and low wiring efficiency in box transformer substation assembly are solved.

A resin film (100) having a core layer (2) and adhesive resin layers (1) respectively disposed on both sides of the core layer (2), the adhesive resin layers (1) being formed of an adhesive resin composition having a minimum viscosity of 500 Pa·s or more at a temperature of 40°C to 160°C as measured by a rheometer.

The utility model discloses a coil structure and a relay, the coil structure comprises a coil rack and a coil leading-out end integrated with the coil rack through injection molding, the coil leading-out end leads out a coil end portion on the coil rack to facilitate connection, and the coil leading-out end is integrated with the coil rack through an integrated injection molding technology. The process of inserting the coil soldering lug is effectively reduced, and the production efficiency of the coil is improved.

The invention discloses an electromagnetic heating assembly and an electric cooking utensil, and relates to the technical field of electromagnetic heating devices, and the electromagnetic heating assembly comprises an installation support which is configured to be in an arc shape and forms a containing groove; the coil structure comprises a first coil and a second coil, the first coil is fixed in the containing groove and is coaxial with the containing groove, a plurality of second coils are arranged outside the first coil in a circumferential array mode, and every two adjacent second coils are connected in series or in parallel. The first coil is connected in series or in parallel with one of the second coils; wherein the first coil and the second coil are formed by winding aluminum-based graphene wires. According to the technical scheme provided by the invention, the heating range is expanded, the manufacturing cost is reduced, and the occupied volume is reduced.

The utility model discloses a hinge formula openable three-axis coil structure, including the whole of rectangular structure of profile truss, X axis coil winding skeleton, Y axis coil winding skeleton and Z axis coil winding skeleton group's coil system, wind X axis coil on X axis coil winding skeleton, wind Y axis coil on Y axis coil winding skeleton and wind Z axis coil on Z axis coil winding skeleton, one side of coil system is provided with coil door, and the coil door includes the Z axis coil disconnected at the butt -joint end and the rotating Z axis coil winding skeleton that is disconnected at butt -joint end, is hinged with the Z axis coil winding skeleton of adjacent surface through heavy hinge at the rotating side, and the two free ends of Z axis coil are installed with heavy load connector respectively, and the two heavy load connectors of two free ends of same Z axis coil are buckled fixed link through butt -joint upper shell and lower shell, and Z axis coil circuit is connected when closing. The utility model makes sample installation time shorten, realizes magnetic field performance zero compromise and saves maintenance dismounting cost.

A coil structure applied in the field of wireless charging comprises a circuit board and a conductor. The conductor is arranged on the circuit board. The conductor comprises a plurality of coil turns, an input terminal, an output terminal, and a plurality of first capacitor structures. The coil turns are formed around a center point. The input terminal is connected to a one terminal of the coil turns. The outlet terminal is connected to another terminal of the coil turns. Each of the first capacitor structures is arranged on a corresponding one of the coil turns. Distance between the first capacitor structures and the output terminal is smaller than a distance between the first capacitor structures and the input terminal, and the first capacitor structures do not overlap with the output terminal.

An endovascular therapy system includes an endovascular device. The endovascular device includes an elongated body configured to be introduced into vasculature of a patient. The endovascular device includes a coil structure at a distal portion of the elongated body. The coil structure includes at least a first coil portion and a second coil portion. The first coil portion can be configured to carry a plurality of electrodes. The second coil portion can be formed from a coiled wire such that the second coil portion together with the coiled wire defines a coiled coil. The coiled wire can extend distally of a distal end of the first coil portion and be configured to anchor the elongated body and the coil structure within the vasculature of the patient.

The utility model discloses an evaporator for a smoothie machine and the smoothie machine. The evaporator comprises a cylindrical evaporator, the evaporator comprises an outer cylinder and an inner cylinder, an evaporation cavity is formed between the inner wall of the outer cylinder and the outer wall of the inner cylinder, and the evaporator is provided with a first through hole which can be communicated with the evaporation cavity and allows a refrigerant to enter and a second through hole which allows the refrigerant to be discharged. The evaporation cavity structure replaces a traditional copper coil pipe, the cost is reduced, refrigerant fluid directly exchanges heat in the evaporation cavity, the refrigerant flow is shortened, the flow resistance is reduced, and compared with the traditional coil pipe structure, the contact area is larger, contact is more sufficient, and the heat exchange efficiency is higher.

The invention discloses an anti-offset coil and a design method thereof, and the method comprises the steps: coil structure design, coil parameter modeling, ss compensation topological structure selection, and ss-type wireless power transmission system construction for simulation verification. Hexagonal coils are adopted as research objects, the hexagonal coils are subjected to combined design, and the designed coils are modeled; mutual inductance and self-inductance parameters of a coil are analyzed, a simulation circuit is built, it can be known from a magnetic induction distribution cloud picture that the proposed coupling mechanism can generate a uniform magnetic field in a charging area above a transmitting end, the anti-offset capability is remarkably enhanced, and it is obtained through simulation that in the transverse + / -80 mm offset and the longitudinal + / -40 mm offset, the anti-offset capability is remarkably improved. The range system can maintain the output power of 300W and the efficiency is not lower than 80%, when the receiving coil deviates by 120 degrees from the X axis, the transmission characteristic of the system is consistent with the characteristic when the receiving coil deviates along the X axis, and the Y axis also has the characteristic, so that the system has key guiding significance for solving the endurance problem of the unmanned aerial vehicle.

The invention discloses a single hydrophone orientation device and method based on an acoustic metamaterial, and relates to an underwater acoustic engineering technology. By designing a three-dimensional geometric structure and utilizing an acoustic metamaterial to construct an auxiliary device, the orientation of an incident sound wave is determined based on a single hydrophone; the device comprises a honeycomb-shaped cylindrical base and a wedge-shaped acoustic grating group which are distributed asymmetrically; the honeycomb-shaped cylindrical base is divided into N grids, the sound grids in the wedge-shaped sound grid set are fixed to the grids in a one-to-one correspondence mode, and the lengths of the internal coiling structures of the sound grids are arranged in a differentiated mode. The direct wave time and the acoustic grating wave time received by the scalar hydrophone are extracted, the time difference is calculated to reversely deduce the propagation distance increment, and the length of the acoustic grating coiling structure is matched to determine the sound source orientation. The device is simple in structure, low in cost and easy to manufacture and install, can be used for transformation of an existing scalar hydrophone, enables the scalar hydrophone to have an orientation function, improves the detection capability of a single hydrophone, and has important application value for a detection system and a mobile platform deployed in a large range.

The invention relates to the technical field of coil manufacturing, and discloses a combined mold system for manufacturing a multi-turn coil, the combined mold system comprises a winding core mold and an end limiting piece for limiting the axial size of the coil, the winding core mold is a combined structure formed by detachably splicing at least two modules; the mold system further comprises at least one pair of detachable lateral restraining pieces, and the lateral restraining pieces are configured to be installed on the side portion of the winding core mold after winding is completed and used for restraining wound coils from the lateral direction. Through the design of the detachable split type core mold, the mold can be gradually released from the inside during demolding, forced pulling of a fragile coil structure is avoided, and reinforced fiber belts are synchronously woven between wire turns in the winding process, so that transverse support and temporary positioning are provided for loose wires in the winding stage; and in addition, an internal reinforcing framework which is uniformly distributed is provided for subsequent curing.

The utility model relates to the technical field of valves, in particular to a coil structure and an electric valve. The coil structure comprises a shell, a cover plate and a plug connector, the shell is provided with an assembly cavity, and the cover plate is located at an opening of the assembly cavity and connected with the shell. The plug connector and the cover plate are arranged in a split mode, and at least part of the plug connector is installed in the assembling cavity. The coil structure further comprises a limiting part, and the plug connector is in limiting fit with the shell through the limiting part. According to the coil structure and the electric valve, the problem that in an existing coil component, the installation stability of the plug connector is insufficient is solved.

The utility model discloses a sounding unit, which comprises a yoke, a plurality of voice coils and at least four central magnetic structures, the yoke is provided with a plurality of longitudinal windows and a plurality of transverse windows, the longitudinal windows are communicated with the transverse windows, two opposite sides of the longitudinal windows are respectively provided with longitudinal flanges, and two opposite sides of the transverse windows are respectively provided with transverse flanges; the central magnetic structures are arranged on the yoke, the at least four central magnetic structures are arranged in an N * M rectangular array, N is an even number greater than or equal to 2, and M is an even number greater than or equal to 2; longitudinal windows are correspondingly arranged between every two adjacent columns of center magnetic structures, and transverse windows are correspondingly arranged between every two adjacent rows of center magnetic structures. The magnetic poles of the two adjacent central magnetic structures face opposite directions; the voice coils and the center magnetic structures are arranged in a one-to-one correspondence mode, and when the voice coils are powered on, the current flow directions of the adjacent edges of every two adjacent voice coils are the same. The sound production unit overcomes the problem of vibration sound production of a sound production unit with a multi-voice-coil structure in a non-starting state.

Charging and updating of an implantable hearing aid is disclosed, wherein an implantable hearing aid system, including a charger unit comprising a coil unit having a first resonant frequency, a hearing aid and an implantable part comprising an implantable coil; the hearing aid comprising: a rechargeable battery; an inductive coil structure having a second resonant frequency, the inductive coil structure configured to form an inductive charging link with the coil unit to receive a power signal from the charger unit; a step-down converter configured to reduce a voltage of the power signal received from the charger unit for charging the rechargeable battery; and a step-up converter configured to increase a voltage of a signal obtained from the rechargeable battery; and wherein the inductive coil structure is further configured to form a transcutaneous link with the implantable coil to transfer at least one of data and power to the implantable part, and wherein the first resonant frequency and the second resonant frequency are matched or partially matched.

The invention provides an aerosol generating device and a segmented coil assembly thereof, the segmented coil assembly comprises a heating cavity, the heating cavity is used for accommodating an aerosol forming matrix, the cavity wall of the heating cavity is provided with an electric conductor and a ceramic matrix, the electric conductor is used for heating the aerosol forming matrix accommodated in the heating cavity during working to generate aerosol, and the ceramic matrix is used for heating the aerosol forming matrix. The electric conductor comprises at least one first electric conduction coil and at least one second electric conduction coil, the first electric conduction coil and the second electric conduction coil are printed on the ceramic base body, and the first electric conduction coil and the second electric conduction coil can be independently controlled or cooperatively heated. The segmented coil assembly provided by the invention has remarkable structural advantages, is excellent in structural compactness, and is very beneficial to the miniaturization design of a product. According to the assembly, a sectional type ceramic coil integrated forming process is adopted, a traditional multi-strand coil structure is replaced, the volume control aspect is developed, and the overall volume of a product can be remarkably reduced.

The utility model discloses a quick response coil structure of an electromagnetic clutch, which relates to the field of mechanical parts, and comprises a coupling pivot shaft, an anti-collision mechanism and an anti-drop mechanism, a clutch upper shell is arranged outside the coupling pivot shaft, a coil body is arranged at the bottom of the clutch upper shell, and the anti-drop mechanism is arranged on the coil body. A middle coupling shaft is arranged in the middle of the interior of the clutch upper shell, a clutch bottom shell is arranged at the bottom of the middle coupling shaft, the anti-collision mechanism is used for preventing the coil body from impacting the interior of the clutch bottom shell, and the anti-disengaging mechanism is used for preventing the coil body from disengaging from the upper end of the middle coupling shaft. Through cooperative work of the limiting arc piece, the positioning fan piece and the hook part on the inner side of the clutch bottom shell, when the coil body moves to possibly impact the clutch bottom shell, the limiting arc piece annularly blocks, the positioning fan piece assists, and the wedge-shaped structure of the hook part disperses stress, so that part damage caused by impact can be avoided.

This application belongs to the field of wireless charging technology, specifically relating to a constant current and constant voltage wireless charging system and method based on a three-coil loosely coupled transformer, including an inverter circuit, a primary-side compensation circuit, a resonant circuit, a secondary-side compensation circuit, a rectifier circuit, and a filter capacitor; the resonant circuit has an anti-parallel coil structure, with the third coil located on the secondary side and a single coil on the primary side; its advantages are high misalignment tolerance, load-independent output, and high efficiency.

The application relates to a radio frequency coil design method for transmit array spatial encoding imaging, and belongs to the technical field of magnetic resonance imaging. In view of the problems of low single-dimension coding efficiency, strong coupling interference between coils and nonlinear phase gradient of a traditional TRASE technology, axial and radial coding coils are designed based on a target field method and a magnetic dipole method, two-dimensional radio frequency phase coding is realized through reverse current solenoid decoupling combination, and excitation and signal receiving are realized in combination with a saddle coil. Through optimization of the coil structure and decoupling design, the technical scheme achieves multi-dimensional efficient coding, high-precision phase gradient, strong anti-interference and system light weight, and is suitable for the portability and dynamic monitoring scene of low-field magnetic resonance.

The invention discloses an electric field evaluation method and system based on potential-power transmission line coupling, and relates to the technical field of power system protection, and the method comprises the steps: building a current fluctuation model based on a lightning channel engineering model; hybrid emission of a current element i and a charge element q is adopted based on a current fluctuation model; obtaining a voltage U'under the condition of lossy earth through the induced voltage on each section of line; obtaining a total horizontal voltage based on the voltage under the condition of lossy earth and the voltage under the condition of lossless earth; the electric field is evaluated based on the total horizontal voltage. On the basis of a dipole current model, charge distribution introduction, current generation of magnetic potential and charge generation of potential are combined, the relative positions of charges and current elements can be improved when an electric field channel is discretely simulated by a computer, a near-field electric field can be simulated more accurately, and the simulation precision is improved. Meanwhile, the divergence problem caused by calculation truncation errors can be counteracted when the structure is coupled with a coil type structure, and the accuracy and stability of calculation are improved.