1117results about "Coils" patented technology

The invention relates to a multi-pole magnetic field magnetizing test method and a spiral winding group thereof, and relates to the field of automatic magnetizing technology, and the method comprises the steps: constructing a test model, importing design parameters of a magnet to be tested, determining a multi-pole magnetic field distribution theoretical model, and defining a magnetic pole region and a key feature contour line; acquiring magnetic field data, scanning the surface of the magnetized magnet by using an array probe, and acquiring magnetic field intensity actual measurement data of a multi-dimensional coordinate; matching a magnetic pole contour, comparing an actually measured contour line with a theoretical contour line, and establishing sampling point mapping; correcting the deviation data, screening the deviation sampling points exceeding the threshold value, and determining magnetizing process adjustment parameters; and evaluating the magnetizing efficiency, carrying out iterative magnetizing based on the correction parameters, and generating an evaluation report containing indexes such as magnetic field uniformity and the like. The method has the effect of improving the magnetic field intensity and stability of the magnet during orientation magnetization.

The utility model belongs to the technical field of electromagnet coils, particularly relates to a magnetic suspension electromagnet coil, and aims to solve the problems that a coil with a large number of turns can generate a strong magnetic field under the same current, so that the coil with a large number of turns can be adopted to generate a strong and stable magnetic field, but the large number of turns can cause some problems. In order to solve the problems that the energy loss is further increased and even the coil is possibly damaged due to the fact that the resistance of the coil is increased and heating is increased, the utility model provides the following scheme: the coil comprises a hollow framework, a plurality of turns of coils are wound on the hollow framework, and a protective sleeve is wound on the whole outer wall of the plurality of turns of coils; and the outer wall of a single copper wire of the multi-turn coil is covered and sprayed with an insulating layer. When the magnetic suspension electromagnet coil is used, through the design of the protective sleeve, the ceramic insulating coating, the heat dissipation fins, the heat extraction fan, the heat dissipation holes and the like which are made of polyimide film materials, the heat dissipation efficiency and durability of the coil are effectively improved, and stable operation of a magnetic suspension electromagnet is ensured.

The invention discloses a water-cooling pulsed high-intensity magnetic field coil, and belongs to the technical field of pulsed high-intensity magnetic fields. The coil adopts a laminated structure, each laminated sheet is provided with an opening and a boss, and a spiral structure is formed through electrical connection of the bosses. Each lamination is divided into a through-flow part, a water cooling part and a fixed part; the through-flow part is made of red copper, the water cooling part and the fixing part are made of stainless steel, and an integrated copper-steel composite structure is formed through welding. The water-cooling part is provided with water-cooling grooves welded and sealed by a cover plate; and the water-cooling grooves of the laminations are connected in series through water inlet and outlet holes to form a cooling flow channel. The fixing part is provided with a semicircular fixing hole used for limiting and flow guiding. And an insulating sheet is arranged between the adjacent laminations. The coil is pressed tightly through the upper and lower pressing plates and an insulated fixing stud. Through lamination partitioning and copper-steel compounding, the high-strength and efficient water-cooling capacity is achieved, and the problems of insufficient strength and cooling of the pulse high-intensity magnetic field coil under repetition frequency work are effectively solved.

The invention provides a geomagnetic compensation and bias magnetic field generation system and method for cold atom interference. The system comprises a triaxial magnetometer, a triaxial Helmholtz coil, a voltage-controlled current source and an FPGA regulation and control module. The three-axis magnetometer is used for collecting space magnetic field data at a plurality of monitoring positions in the space where the three-axis Helmholtz coil is located in real time; the FPGA regulation and control module is used for calculating control voltage data required by the voltage-controlled current source according to a target magnetic field and any space magnetic field data collected by the three-axis magnetometer in each sampling period, controlling coil current transmitted to the three-axis Helmholtz coil, and outputting the coil current to the three-axis Helmholtz coil. And loop iteration is carried out until the three-axis Helmholtz coil generates a target magnetic field at a plurality of monitoring positions, wherein the target magnetic field is a near-zero magnetic field in the X / Y direction, and the magnetic field intensity in the Z direction is constant and is a non-zero value. The device can respond to the change of the environmental magnetic field in real time, and provides a stable and accurate magnetic field environment for the cold atom interference test on the basis of compensating the influence brought by the geomagnetic field.

The invention discloses a high-field water-cooling magnet device which comprises a container assembly and a magnet coil assembly, and the magnet coil assembly is located in the container assembly and communicated with the container assembly. The container assembly comprises a hydraulic machine assembly, and the hydraulic machine assembly comprises a cylinder body, a piston, a check ring, a pressure equalizing pad, a first force transmission check ring, a first anti-rotation pin, a second force transmission check ring, a second anti-rotation pin, a first force transmission column and a second force transmission column. The axial force application device has the advantages that axial force application can be performed on the magnet coil assembly, the pressing force on the magnet coil assembly is improved, and the problems of tension fracture and damage caused by coil stress overrun due to overlarge radial expansion electromagnetic force of a magnet coil bit piece and an insulating piece are solved.

The invention discloses an intelligent magnetic field generator device based on deep learning and a control method. The device comprises a coil array, a programmable current control module and a deep learning module. The coil array adopts an equidistant square matrix structure and is used for generating specific magnetic flux density distribution in a space target area; the programmable current control module is used for adjusting the power-on current amplitude and direction of each coil of the coil array; and the deep learning module is used for establishing a nonlinear mapping relation between the magnetic field distribution of the space target area and the coil current configuration of the coil array so as to realize magnetic field reverse reconstruction and current parameter prediction. The invention aims to solve the problems of complex modeling, difficulty in solving an inverse problem, low control precision and poor flexibility in a magnetic field adjustment process in the prior art, and quick inverse solution and high-precision reproduction from target magnetic field distribution to coil current parameters are realized through the magnetic field generator device.

Disclosed herein is a coil component that includes a drum core; a terminal fitting fixed respectively to the flange part of the drum core; and a wire wound around the winding core part of the drum core. The terminal fitting has a wire connecting part to which the wire is connected and a mounting part having springiness with respect to the drum core. The distance between the flange part and the mounting part is larger than the distance between the flange part and the wire connecting part.

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 relates to a seabed trapezoidal foldable electromagnetic coil device, which belongs to the technical field of ocean electromagnetic detection and comprises a main bearing beam, an expandable transmitting coil assembly, a receiving coil assembly, a transmission connecting rod, a hinged rotating seat, a sliding connecting seat and a push-pull driving rod. The transmitting coil is of a symmetrically-distributed trapezoidal structure, the receiving coil is in sliding fit with the main bearing beam through the sliding connecting base, the push-pull driving rod is in linkage with the receiving coil to move and the transmitting coil to be unfolded / folded, the device frame is made of a macromolecule non-magnetic material, and the ferromagnetic driving component is arranged in an avoiding mode. Receiving coil plane magnetic field balance is achieved through the non-uniform magnetic field design of the trapezoidal transmitting coil, coil space optimization configuration is completed through a linkage mechanism, folding portability and anti-interference performance of a multi-layer coil are achieved at the same time, direct coupling of a primary field of the transmitting coil to receiving is effectively restrained, the stability and the signal-to-noise ratio of a detection signal are improved, and the detection precision is improved. The method is suitable for complex seabed transient electromagnetic detection scenes carried by AUV / ROV.

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 high-pressure-resistant sensor comprises a shell, the shell comprises a body and a cover, a cavity is formed in the body, an opening is formed in one end in the length direction of the body, and the cover is detachably arranged at the opening to seal the shell; the sensing unit is contained in the cavity and comprises a double-coil vibration head module and a signal enhancement module, the double-coil vibration head module comprises a supporting framework, a magnetic tank and a coil assembly, the coil assembly is arranged on the supporting framework and comprises an inner coil and an outer coil which are coaxially arranged, and the diameter of the outer coil is larger than that of the inner coil; the axial directions of the inner coil and the outer coil are consistent with the length direction of the body; the signal enhancement module is coaxially arranged on the periphery of the double-coil vibration head module. According to the invention, the signal penetration capability is stronger, and a thicker metal shell can be penetrated; in addition, the magnetic tank and the coil assembly are wrapped by a strip-shaped amorphous nanocrystalline material with high magnetic permeability, so that the penetrating power of signals is effectively enhanced.

The invention discloses an array-type UWPT system, and the system comprises an energy inversion module which comprises a DC power supply and a full-bridge inversion circuit, and the DC power supply is connected with the input end of the full-bridge inversion circuit through a wire, and provides energy for the inversion process of the system; the resonance compensation network comprises a transmitting / receiving side compensation capacitor, and the transmitting / receiving side compensation capacitor comprises a transmitting side compensation capacitor Ctx and a transmitting side compensation capacitor Crx; the reconfigurable coupling mechanism comprises n transmitting coil groups Ltx and m receiving coil groups Lrx; the energy receiving module comprises a bridge rectifier circuit and a load RL; the direct-current power supply is connected with the full-bridge inverter circuit in series, the full-bridge inverter circuit is connected with the transmitting / receiving side compensation capacitor, and the transmitting side compensation capacitor Ctx and the transmitting coil assembly Ltx are connected in series and then connected to the output end of the full-bridge inverter circuit to form an LC series resonance circuit. The n transmitting coil groups and the m receiving coil groups perform energy transmission through electromagnetic coupling, and the receiving coil groups generate high-frequency alternating current after sensing magnetic field changes of the transmitting coils and are connected to the input end of the bridge rectifier circuit through wires.

An inductive device is provided. The inductive device includes a laminated body and two external electrodes. The laminated body includes an insulator and a plurality of conductive wiring layers stacked in a first direction. The conductive wiring layers are embedded within the insulator, and any two adjacent ones of the conductive wiring layers are electrically connected to each other to form a coiled conductor extending spirally. The external electrodes are disposed on the laminated body and electrically connected to the coiled conductor, and the external electrodes are spaced apart from each other. Each of the external electrodes includes a base plate, a lateral wall, and a plurality of stress dispersing structures extending toward the coiled conductor and protruding from at least one of the base plate and the lateral wall, and the stress dispersing structures are spaced apart from each other and engaged with the laminated body.

The invention relates to the technical field of electromagnetic coils, in particular to a Halbach array planar coil structure unit. The Halbach array planar coil structure unit is composed of a first substructure, a second substructure and a third substructure. According to the invention, a planar electromagnetic coil is adopted to form a Halbach array permanent magnetic field effect; the invention discloses a Halbach array permanent magnet structure, and aims to solve the problems that the existing Halbach array permanent magnet structure is difficult to miniaturize and rigid, cannot get rid of the limitation of permanent magnet materials, is difficult to realize a sine distribution magnetic field in a real sense and is low in electromagnetic utilization rate.

To solve a problem in which air may remain between the outer surface of a metal layer and a substrate or the like.SOLUTION: An electronic component 10 includes an element body 11, a first base electrode 21A, and a first metal layer 22A. The outer surface 23 of the first base electrode 21A has a flat surface 24 and a recess 25 recessed relative to the flat surface 24. The first metal layer 22A fills the recess 25, and the outer surface of the first metal layer 22A is flat. The melting point of the outermost layer of the first metal layer 22A is 240°C or lower.SELECTED DRAWING: Figure 1

The invention discloses a coil excitation Hall thruster magnetic circuit structure suitable for a krypton working medium, relates to the technical field of aerospace technology and plasma propulsion, and solves the problems of low ionization efficiency and insufficient characteristic length of an existing Hall thruster after krypton is used. A magnetic conductive inner core is arranged at one end of a bottom plate, and a magnetic conductive cover is arranged at the other end; an inner magnetic pole is arranged at the upper end of the magnetic conductive inner core; an inner coil is arranged between the inner magnetic pole and the bottom plate and corresponds to the outer side of the magnetic conductive inner core; an outer coil is arranged between the outer magnetic pole and the bottom plate and corresponds to the inner side of the magnetic conductive cover; a ceramic channel is arranged between the inner coil and the outer coil; the bottom plate comprises an inner bottom plate and an outer bottom plate, the inner bottom plate and the outer bottom plate are coaxially arranged, and a bottom plate gap is formed between the inner bottom plate and the outer bottom plate. The characteristic length of a magnetic field in a discharge channel can be remarkably prolonged, the krypton ionization efficiency is improved, and meanwhile the structure of the thruster is simplified.

An electric winding assembly includes a conductor core having a first end and an opposing second end, an insulation layer overlying the conductor core, and a conductive shield layer overlying the insulation layer. The conductive shield layer includes an insulative carrier circumferentially surrounding the insulation layer and a conductive layer disposed on the insulative carrier, the insulative carrier formed from a material having a thermal rating greater than 180° C., the conductive shield layer having a surface resistivity between 1.5 and 10 ohms per square.

Systems and methods for magnetic field shaping in brushless direct current (BLDC) motors are disclosed. In some examples, the method includes forming a stator coil of a BLDC motor. The BLDC motor includes a rotor including a vessel mover disposed proximate the stator coil and including a magnetic structure. The stator coil includes windings comprising layers interconnected by intra-coil vias to form a continuous conductive path. The formation of the stator coil includes introducing variation(s) between two or more of the windings of two or more of the layers according to a desired magnetic field pattern. The stator coil is then driven by injecting a control signal to the conductive path to energize the stator coil, impart a directed force on the vessel mover to move the vessel mover in a direction of travel in accordance with the desired magnetic field pattern, and thereby commutate the BLDC motor.

Induction heating from an induction coil (108) is used to separate a metal medical sharp (144) from its holder (142) by applying a high-frequency oscillating magnetic field that excites eddy currents and resistance heating in the sharp. The heated metal sharp melts the adhesive or plastic securing the sharp to its holder. The use of induction heating is advantageous in that it does not require direct contact between the electrical circuit and the sharp or its holder. The heating can also act to sterilize the sharp and thereby render it less hazardous at the same time that it separates the sharp from its holder. The induction coil can have a stepped or conical shape to concentrate the RF energy at the interface between the metal sharp and its holder.

An electronic device including a wireless charging device is provided. The wireless charging device includes a power transmission coil for wirelessly transmitting power to the electronic device, and a first coil which is disposed inside the power transmission coil and by which a magnetic field is formed in a first direction. The electronic device includes a power reception coil for wirelessly receiving power from the power transmission coil, and a second coil which is disposed inside the power reception coil and by which a magnetic field is formed in a second direction opposite the first direction, wherein the first coil and the second coil are configured to be matched so that the power transmission coil and the power reception coil are aligned.

Connection assembly (100) for establishing an electrical connection between at least one electrical load and an electrical voltage source, comprising at least three terminal bodies (10, 11, 12) and at least three active electrical components or at least three passive electrical components (20, 21, 22), wherein the at least three terminal bodies (10, 11, 12) are provided for connection to at least three outer conductors of the voltage source, characterized by that the at least three connection bodies (10, 11, 12) are inseparably connected without tools to the at least three active electrical components or the at least three passive electrical components (20, 21, 22).

A coil structure for near-field wireless power transfer, integrating the traditional inductor and external capacitor structure into one single coil and forming a series resonance. The series resonance is achieved by a terminal connection and layering method. The electric field is canceled via a distributed turn-to-turn interleaving structure. With the integrated capacitor, the costs and space of a resonant capacitor can be saved. With the canceled electric field, the interference with neighboring components, such as touch-screen, can be reduced. Other benefits can include low-profile and fabrication convenience based on RGB technology. This coil can be useful for both consumer electronics and electric vehicle wireless charging.

The utility model discloses an antiskid device and gateway equipment, and relates to the technical field of communication equipment. The device comprises a cover plate, a magnetic column, a reset spring and a coil. The cover plate is fixedly connected with an anti-skid base of the electronic equipment, one end of the magnetic column penetrates through the anti-skid base, and the magnetic column is movably connected with the anti-skid base. The reset spring is arranged on the magnetic column in a sleeving mode and located between the magnetic column and the anti-skid base, and when the reset spring is in a compressed state, the other end abutting against the magnetic column is in surface contact with the cover plate. The coil is fixed on an equipment bottom shell of the electronic equipment, and the coil is electrified to generate a magnetic field to attract the magnetic column, so that the antiskid base and the equipment bottom shell are fixedly connected. Therefore, the coil is electrified to adsorb the magnetic column, the connection firmness between the anti-skid base and the equipment bottom shell is ensured, and the equipment main body of the electronic equipment is prevented from sliding off from the anti-skid base to be damaged.

A method for fabricating an inductive coil arrangement comprising: forming N(i) layers, where (i) is an integer from 1 to M, where N(i) is an i-th layer and N(M) is a maximum number of N(i) layers; each N(i) layer comprising: an (i) instance of a first conductor of thickness (x)T, connected to a first side of an (i) instance of a ceramic; an (i) instance of a second conductor of thickness (y)T, connected to the second side of the (i) instance of the ceramic; stacking and registering the N(1) to N(M) layers such that for (i=1 to M-1) an instance of the first conductor of an N(i+1) layer is arranged adjacent to an instance of the second conductor of an N(i) layer; Stacking and registering a third conductor with a thickness (y)T with the first conductor of the N(1) layer and a fourth conductor with a thickness (x)T with the second conductor of the corresponding N(M) layer;and connecting the third conductor to the first conductor of layer N(1) and the fourth conductor to the second conductor of layer N(M); where x and y are equal to or greater than 0 and equal to or less than 1, respectively.

To provide a coil assembly of which a winding layer of coils becomes an odd-number layer, in which a projection part is not provided to an outer peripheral surface of each coil, and each coil is formed in a substantially cylinder shape.SOLUTION: A coil assembly 10 comprises: a conductive part 16 that is wound to a first winding trunk region 21 of a winding trunk part 20; a tip end side conductive part 17 to which a coil wire 40 is wound to a third winding trunk region 23 through an inner part of a wiring groove 29 by less than one periphery; a winding wire construction part 18 that is wound so as to form a winding layer of an odd-number layer to a second winding trunk region 22; and a conductive part 19 that passes a second winding cutting part 37 of a second flange part 25 while being connected to a winding construction part 18, and returns to a gap a first flange part 24 and the second flange part 25. Thus, the coil wire 40 is wounded from a tip end side of the winding trunk part 20 up to a base end side, and a coil 41 of which a winding layer becomes the odd number layer can be easily formed.SELECTED DRAWING: Figure 1

A super-paramagnetic material transducer includes: a rigid body with a longitudinal central axis and two planar surfaces at each of the opposite ends of the body in the direction of the longitudinal central axis, both of these planar surfaces being substantially perpendicular to the longitudinal central axis; and at least one support channel formed in the body and in which a super-paramagnetic coil is housed, the support channel extending parallel to the longitudinal central axis and opening onto both planar surfaces. The super-paramagnetic coil is formed by a core made of super-paramagnetic around which at least one electrical conductor is wound. Furthermore, a feedback winding formed by an electric conductor is wound on the external surface of the body and along the longitudinal central axis.

A sterile drape comprises a plurality of sleeves and a plurality of sterile adapters each at a distal end of a corresponding drape sleeve. Each sterile adapter includes a housing configured to receive a distal face of an instrument manipulator having a plurality of manipulator actuator outputs, a membrane interface at a distal end of the housing that includes a plurality of actuator interfaces, and a pair of supports coupled to the housing to retain a surgical instrument having a plurality of instrument actuator inputs so that the plurality of instrument actuator inputs are opposite to corresponding manipulator actuator outputs with a corresponding actuator interface between each corresponding instrument actuator input and manipulator actuator output. Each sterile adapter also comprises a rotatable seal adapted to couple a proximal opening of each drape sleeve to a rotatable element at a distal end of the manipulator arm.

The invention relates to a mobile magnetic field generation method and device based on multi-coil dislocation superposition, and solves the problems of intermittent magnetic field disconnection, large magnetic field fluctuation and low energy efficiency caused by phase opening, phase closing and positive and negative control required by traditional coil magnetic field movement. One group or more coils are overlapped in a staggered manner in one group of coils and are partially overlapped in space to form a continuous coverage area, smooth migration of a magnetic field is realized through uninterrupted magnetic field movement, and the stability and energy efficiency of the magnetic field are improved. The method is suitable for linear motors, rotating motors, magnetic suspension driving and other scenes needing directional movement of the magnetic field.

The invention discloses an integrated track coil for a superconducting electric aerotrain and a track beam structure of the integrated track coil, relates to the technical field of magnetic suspension, and solves the technical problems that an existing track coil is low in maintenance efficiency and high in manufacturing cost due to the fact that the number of used coils is large. The integrated track coil comprises a coil module, the coil module comprises coil boxes, and the coil boxes are installed on the two sides of a track base; the two groups of zero magnetic flux coils are arranged in the coil box, and the zero magnetic flux coils are positioned in the coil box; bending parts are arranged at the two ends of the propelling coil in the longitudinal direction, the zero-magnetic-flux coil is located between the bending parts, and the zero-magnetic-flux motor has the advantages that maintenance is convenient, and the number of used coils and the manufacturing cost are 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.