29 results about "Conductor Coil" patented technology

The invention provides a test method and device for a motor active short-circuit relay, and a storage medium. The method includes the steps: performing the zero speed detection of a motor after a motor controller completes a low-voltage power-on operation, wherein when the motor controller is powered down, a first relay and a second relay are both switched on; controlling the second relay to be turned on if the motor passes the zero speed detection, and injecting a first excitation signal at the control ends of a first phase winding and a third phase winding through the motor controller; performing injection detection of the first excitation signal to determine whether the first excitation signal is successfully injected or not; controlling the first relay to be turned on if the first excitation signal is successfully injected, and obtaining a voltage across two ends of the first relay; and judging whether the power-on test of the first relay is successful or not according to the voltage across two ends of the first relay. The method can realize the turn-on test of the short-circuit relay, and ensures the reliability of the active short-circuit function of the vehicle motor duringdriving.

The invention relates to a cooling structure for an ultraprecise linear motor and belongs to the technical field of linear motors. The cooling structure solves the problem of proneness to heat exchange with environment caused by high side temperature of two-side surface-mounted cooling structures of existing linear motors. The cooling structure comprises a winding supporting portion, a winding and a heat conductive portion, wherein the winding is fixed on the surface of the winding supporting portion, the heat conductive portion is arranged on the surface on the outer side and fixedly connected with the winding supporting portion, the heat conductive portion is a copper foil ring which fits the outer profile of the winding and is sleeved and fixed on the surface on the outer side of the winding, or the heat conductive portion is a copper foil heat conductive ring formed by arraying multiple copper foil sections in a dispersed manner, the copper coil heat conductive ring fits the outer profile of the winding, and each copper coil section is fixed on the surface on the outer side of the winding. The cooling structure for the ultraprecise linear motor is suitable for cooling of linear motors.

The invention discloses a half-open type thrust magnetic levitation bearing. The bearing comprises a first magnetic ring, a second magnetic ring and a third magnetic ring, wherein the first magnetic ring, the second magnetic ring and the third magnetic ring are arranged in annular and laminating manners so as to form an annular magnetic pole; the magnetic pole of each of the magnetic rings is different from that of the adjacent magnetic ring; a first winding and a second winding of the annular magnetic pole are wound according to a predetermined half-open way, the lower part of the middle magnetic pole is recessed inwards so as to generate a winding space which meets predetermined conditions; and the magnetic pole arranged at the upper end extends, and thus, a complete circle of magnetic pole is formed after splicing. Based on the bearing, continuity and consistency of magnetic field strength of the magnetic poles of the half-opened axial thrust bearing can be basically reserved, and the half-open type thrust magnetic levitation bearing can be applied to high-speed rotation machines; and moreover, a more flexible mounting way can be obtained, particularly to large-size rotation machines.

This utility model discloses a polypropylene extrusion molding device, relating to the field of plastic molding technology. The polypropylene extrusion molding device includes a polypropylene extrusion unit with a feed inlet. A first motor is fixedly connected to one end of the polypropylene extrusion unit, and a support frame is fixedly connected to the bottom of the polypropylene extrusion unit. When it is necessary to change to a different specification mold, the current to the magnetic conductor coil is cut off, causing the magnetic conductor to lose its magnetism and the magnetic attraction between it and the permanent magnet inside the mold to dissipate. At this time, the old mold can be directly removed. After replacing it with a new specification mold, the new mold is placed against the sealing plate and aligned with the extrusion hole. The magnetic conductor coil is then energized, causing it to regain its magnetism and re-establish magnetic attraction with the permanent magnet inside the new mold. The entire process requires no additional mechanical fixing structure; mold replacement can be quickly completed simply by switching the current on and off, significantly improving the device's adaptability to different product specifications.

The application discloses a voltage-limited overvoltage protection component with a recoverable electromagnetic drive tripping mechanism, which is composed of a voltage-limited overvoltage protector and an electromagnetic drive tripping mechanism. In a normal state, the normally closed contact of the electromagnetic drive tripping mechanism is in a closed state, which does not affect the normal working state of the voltage-limited overvoltage protector and the protection state under a normal intensity overvoltage. When an overvoltage occurs, a pulse current flowing through the voltage-limited pressure-sensitive resistor induces a current in the upper metal disc of the electromagnetic drive tripping mechanism, which is opposite to the direction of the spiral conductor coil of the lower electromagnetic drive disc, so that the upper metal disc of the lower electromagnetic drive mechanism induces an electromagnetic repulsive force with the lower electromagnetic drive disc, thereby causing the normally closed contact of the electromagnetic drive tripping mechanism to break, effectively inhibiting the continuous effect of a subsequent power frequency or direct current arc on the voltage-limited protector, prolonging the service life of the voltage-limited overvoltage protection component, and effectively realizing the safe use coefficient and prolonging the service life of the voltage-limited overvoltage protection component.

A laminated coil component includes a laminated body including insulating layers laminated in a length direction and a coil, and first and second external electrodes each electrically connected to the coil. The coil includes coil conductors each laminated together with the insulating layer in the length direction and electrically connected to each other. A lamination direction of the laminated body and a coil axis direction of the coil are parallel to a first main surface which is a mounting surface of the laminated body. The laminated body satisfies B_W≤200 μm, B_L≤400 μm, and 200 μm≤B_T, or B_T≤200 μm, B_L≤400 μm, and 200 μm≤B_W where dimensions of the laminated body in the width, height and length directions are defined as B_W, B_T, and B_L, respectively, and an inner diameter area of the coil is 7500 μm2 or more.

An embodiment provides a conductive wire comprising a conductive base material having a linear shape, and an insulating coating film covering the base material. At least a part of a portion of the insulating film on the outer surface thereof is composed of a nanostructure region composed of nanofibers or nanoparticles.

The invention relates to an inductance device and electronic equipment. The inductance device comprises a main body which comprises a plurality of dielectric layers which are mutually stacked; and at least one first inner electrode layer, wherein the at least one first inner electrode layer is arranged on the corresponding dielectric layer. The first inner electrode layer comprises a coil and a connecting conductor, the coil is arranged on one surface, in the thickness direction, of the corresponding dielectric layer, the coil is coiled into a spiral structure, the coil comprises a circumferential extension section and an avoiding coil section, and the avoiding coil section and the connecting conductor are adjacent and arranged at intervals; the avoiding coil section is positioned between the connecting conductor and the center of the spiral structure of the coil; at least part of the first inner edge face, facing the radial inner side of the coil, of the avoiding coil section and the second inner edge face, facing the radial inner side of the coil, of the connecting conductor have the contour shape matched with each other. According to the inductance device and the electronic equipment, the inductance value and the quality factor of the inductance device can be improved.

The invention relates to the technical field of transformers, in particular to a structure for improving the insulation performance of the end of an axial split coil, which comprises a wire and an insulation paperboard arranged on the outer side surface of the wire, and a cushion block is arranged at the top of the insulation paperboard. A structure formed by the insulating cardboard and the cushion block is connected with the other group of the insulating cardboard and the cushion block in a longitudinal end-to-end mode, and a supporting strip is arranged at one end of the cushion block and located on the inner side diameter of a coil of the wire; according to the invention, the insulating cardboard wraps the three surfaces of the wire, the upper and lower surfaces of the insulating cardboard are bonded with the corresponding cushion blocks, and the slotted end parts of the corresponding cushion blocks are clamped into the clamping grooves of the supporting strips, so that the purposes of shortening the supporting strips, keeping away from the angle rings of the transformer body and preventing the insulation from being damaged are achieved, and the fault tolerance is increased; the reject ratio increased due to errors in manual and production manufacturing processes is reduced, the production difficulty is reduced, and the insulation performance is further improved.

This invention relates to the field of superconducting motor technology, and in particular to a low-loss superconducting motor and its design method. The low-loss superconducting motor includes a vacuum chamber, a stator assembly, and a mover assembly. The stator assembly includes a stator support frame with a planar top structure and a superconducting coil disposed on the planar structure. A protective cover is disposed above the superconducting coil, and a radiative heat shield is disposed on the protective cover. The mover assembly is disposed between the protective cover and the radiative heat shield. The mover assembly includes a frame-shaped mover support frame and a constant conductor coil. The temperature of the constant conductor coil is controlled by controlling the emissivity of the radiative heat shield, and the surface emissivity of the protective cover is used to cool the constant conductor coil. The invention also discloses a design method based on a low-loss superconducting motor. The air gap between the stator assembly and the mover assembly is small, which facilitates the achievement of a high magnetic field, reduces the Joule loss of the constant conductor coil, eliminates the need for air or water cooling pipes, and facilitates temperature control.

The application discloses a transformer adopting a composite conductor coil and a connecting method of the composite conductor, and relates to the technical field of transformers, in particular to a transformer adopting a composite conductor coil, which comprises a core column and a coil wound on the core column, wherein the coil comprises, from top to bottom, an upper coil, a middle coil electrically connected with the upper coil and a lower coil electrically connected with the middle coil; the upper coil and the lower coil are formed by winding a first conductor; the middle coil is formed by winding a second conductor; the first conductor is a composite conductor comprising a plurality of sub-conductors; the second conductor is a composite conductor comprising a plurality of sub-conductors; and the number of the sub-conductors of the first conductor is greater than that of the second conductor. The application adopts multiple composite conductors at the two ends of the coil and two composite conductors at the middle part of the coil, so that the problem of increased eddy current loss and temperature rise caused by the magnetic field bending of the coil end can be solved, and the production cost is controlled.

A coil structure for a stator of an electric motor having a rotor configured to rotate about an axis. The coil structure comprises a conductor configured to provide a coil; the coil comprising one or more turns of wire around a magnetic core of the stator to induce a magnetic flux in the magnetic core when in use. The conductor comprises one or more first portions comprising a plurality of sub-conductors in parallel with each other; and one or more second portions coupled in series with the one or more first portions. Each of the one or more second portions comprises a single sub-conductor or a smaller number of sub-conductors in parallel; and at least one coil comprises one of the one or more first portions and one of the one or more second portions. The transition between the first and second portions occurs at both axial outer ends of the magnetic core. The invention provides optimal use of the copper area in order to provide as low resistance as possible over the entire operating frequency range of the machine and provides a method of manufacturing electric motors and transformers that are effective over a wide frequency range.

Provided is a coupling inductor with which it is possible to adjust coupling coefficients of a plurality of coils provided in an element body. The present disclosure relates to a coupling inductor 1A-1D in which a first coil C1 and a second coil C2 that are arranged in an element body 10 and face each other in the stacking direction are magnetically coupled with each other, wherein: the element body 10 is provided with a magnetic layer ML containing first magnetic particles MP1, a plurality of coil conductors CD1, CD2 constituting the first coil C1 and the second coil C2, a first through conductor TH1 that electrically connects one end of the first coil C1 with a first external electrode 21 and extends in the stacking direction, a second through conductor TH2 that electrically connects the other end of the first coil C1 with a second external electrode 22 and extends in the stacking direction, a third through conductor TH3 that electrically connects one end of the second coil C2 with a third external electrode 23 and extends in the stacking direction, and a fourth through conductor TH4 that electrically connects the other end of the second coil C2 with a fourth external electrode 24 and extends in the stacking direction; and a coupling adjustment member 30 that adjusts the coupling coefficient between the coils is provided to at least part of the periphery of the first to fourth through conductors TH1-TH4.

An orientation-correctable flexible magnetic conductor sensor device, comprising: a flexible magnetic conductor coil (1) having a first end and a second end; a Hall sensing element (2), one side of the Hall sensing element being fixedly attached to the first end, and the other side of the Hall sensing element being detachably connected to the second end; and a circuit board (3) provided with a power supply element (4), a data processing element (5), a data output element (6) and a geomagnetic measurement element (7), wherein the power supply element (4) supplies power to the Hall sensing element (2), the data processing element (5), the data output element (6) and the geomagnetic measurement element (7); the Hall sensing element (2), the data output element (6) and the geomagnetic measurement element (7) are all connected to the data processing element (5); the Hall sensing element (2) is used for sensing a signal change in the flexible magnetic conductor coil (1); the geomagnetic measurement element (7) is used for detecting the geomagnetic direction; and the data processing element (5) performs, on the basis of geomagnetic information, compensation calculation on a sensing signal output by the Hall sensing element (2).

The application provides a low-impedance inductor and a preparation method and application thereof. The low-impedance inductor comprises a magnetic middle column with recesses; the volume of the recessed part accounts for 1-10% of the volume of the magnetic middle column; the preparation method comprises the following steps: firstly, mixing magnetic powder and glue to obtain mixed raw materials; then, carrying out coating granulation and screening treatment in sequence, and placing the magnetic middle column with recesses in a mold to carry out first pressing treatment to obtain the magnetic middle column with recesses; after the first solidification treatment of the magnetic middle column, the conductor coil is assembled, and then the second pressing treatment and the second solidification treatment are carried out in sequence to obtain a semi-finished product; and finally, the semi-finished product is subjected to insulation protection, laser paint stripping and electroplating in sequence to obtain the low-impedance inductor. The magnetic middle column with recesses in the low-impedance inductor can effectively reduce the deformation degree of the conductor coil, and further reduce the direct current impedance of the inductor.

A modular decor apparatus includes a base, an elongated charging member, and at least one modular powered unit removably coupled to the elongated charging member by a magnetic force. The elongated charging member has a first end connected to the base and a second end. The elongated charging member extends from the base from the first end to the second end, and comprises at least one shaft and a current carrying conductor coiled around the at least one shaft. The current carrying conductor generates an electrical signal from a power source. The at least one modular powered unit is capable of receiving the electrical signal from the elongated charging unit to power the at least one modular powered unit. The at least one modular powered unit can be a task light, an ambient light, a ring light, a speaker, and / or a charging port, among other examples.

The invention provides cleaning equipment, a cleaning method, a cleaning device, control equipment, a product and a medium, and belongs to the technical field of semiconductor cleaning. Comprising a liquid medicine tank which is provided with an accommodating space and is used for accommodating cleaning liquid and a wafer; the annular Helmholtz coil comprises two circular conductor coils with the same radius, the two conductor coils are coaxially arranged, the distance between the two conductor coils is equal to the radius of the conductor coils, the liquid medicine groove is formed in the two conductor coils, and the axis of each conductor coil is perpendicular to the wafer in the liquid medicine groove; the monitoring unit is used for monitoring content data of metal ions in the cleaning liquid; and the control unit is used for acquiring the content data and / or target information of the cleaning fluid and controlling the magnetic field intensity of the magnetic field generated by the annular Helmholtz coil according to the content data and / or the target information. According to the technical scheme, migration of metal ions in the cleaning liquid can be accelerated by controlling the magnetic field intensity, and the cleaning efficiency and the cleaning uniformity are improved.

The invention relates to surface nondestructive testing equipment and a surface nondestructive testing method for an ultrahigh-pressure grooved drum, which are used for carrying out surface nondestructive testing on the surface of a large-size ultrahigh-pressure grooved drum. Comprising a supporting power mechanism, a clamping mechanism, a self-centering bracket mechanism, a coil rack mechanism and a magnetic suspension supply mechanism, wherein the clamping mechanism can be used for clamping cylinders with different diameters; the self-centering bracket mechanism is used for supporting one ends of workpieces with different diameters; the coil rack mechanism is used for longitudinally magnetizing cylinder grooves covered by copper rings; during use, the clamping mechanism clamps a workpiece, the self-centering bracket supports the bottom of the workpiece, surface nondestructive testing is performed on a groove in the surface of a barrel through a central conductor and a coil rack of the supporting power mechanism in a method and steps, and the surface nondestructive testing device has the advantages of convenience in installation, easiness in assembly and disassembly, economy and practicability.

To provide a conductor that can suppress short circuits within a coil and is highly durable, a coil containing this conductor, and a method for manufacturing this conductor. [Solution] According to the embodiment, a conductive wire is provided that includes a conductive substrate having a linear shape and an insulating coating covering the substrate. At least a portion of the outer surface of the insulating coating is composed of nanostructure regions made of nanofibers or nanoparticles.

A device according to at least one embodiment of the present disclosure includes: a proximal end; a distal end; a plurality of electrical contacts positioned between the proximal end and the distal end; and a conductor coil extending from the proximal end toward the distal end and including a plurality of conductive wires, each of which is electrically connected to a respective electrical contact of the plurality of electrical contacts, where at least some wires of the conductor coil are at least partially wrapped around a respective contact of the plurality of electrical contacts.

A dipole field magnet includes an internal volume shielded from a magnetic field of the magnet due to a current flowing in the magnet. The dipole field magnet may include a plurality of annular superconductor coils configured to shield an interior volume between the annular superconductor coils from a magnetic field of the dipole field magnet. The dipole field magnets may form part of fusion reactors and / or magnetic torques and / or other dipole field magnet applications. In some cases, the dipole field magnet may include a plurality of annular superconductor coils configured to shield an interior volume between the coils from a magnetic field and / or the dipole field magnet may create a low field region in the interior volume.

The invention belongs to the technical field of vehicle structures, and particularly relates to an abnormal sound prevention frame and a vehicle. The abnormal sound prevention frame comprises a frame assembly, a power supply unit and a resonance assembly. The frame assembly comprises a body-in-white lower assembly, an engine compartment outer cover plate assembly, a left side wall inner plate assembly, a right side wall inner plate assembly, a front cross beam and a rear cross beam; the resonance assembly is installed on the frame assembly and comprises a tuning fork structure, a conductor coil, an L-shaped fixing base, a control unit and at least two permanent magnets, opposite permanent magnets are arranged at the forked end, the conductor coil is fixed between the two permanent magnets through the L-shaped fixing base, and the control unit is electrically connected with the power supply unit and the conductor coil. The tuning fork structure absorbs energy consumption through passive resonance; the control unit controls the power supply unit to supply power to the conductor coil, generates a reverse electromagnetic field to interact with the permanent magnet, and actively suppresses vibration. The vehicle adopts the frame assembly and the resonance assembly, and the resonance assembly can also be arranged in the vehicle door. Abnormal sound generated by resonance can be restrained, and the driving comfort is guaranteed.

The present application provides a wiring substrate with an inductor structure built-in, and a manufacturing method thereof. The wiring substrate has excellent planar direction insulation, and has a magnetic body inside and outside a conductor coil, thus providing excellent inductive characteristics. A wiring substrate with an inductor function includes: an inner layer substrate having a first main surface and a second main surface, and formed with an opening through the first and second main surfaces; a magnetic body layer, which is a magnetic body layer disposed inside the opening, and formed with a first through-hole through the first and second main surfaces thereof; an insulator, which is an insulator disposed inside the first through-hole, and formed with a second through-hole through the insulator; and an inductor formed by a first conductor pattern formed on the first main surface of the magnetic body layer, a second conductor pattern formed on the second main surface of the magnetic body layer, and a through-hole conductor disposed inside the second through-hole and connecting the first and second conductor patterns.

A coil component (1) is provided with a transmissive element body (2), outer conductors (3, 4), a coil (5), and inner conductors (6, 7). The element body (2) includes end surfaces (2a, 2b) facing each other in a direction (D1), side surfaces (2c, 2d) facing each other in a direction (D2), and side surfaces (2e, 2f) facing each other in a direction (D3). The direction (D2) is orthogonal to the direction (D1). The direction (D3) is orthogonal to the direction (D1) and the direction (D2). The length of each of the end surfaces (2a, 2b) in the direction (D2) is the same as the length of each of the end surfaces (2a, 2b) in the direction (D3). The surface roughness of one side surface (2e) of the side surfaces (2e, 2f) is smaller than the surface roughness of at least one of the side surfaces (2c, 2d). The coil (5) is positioned such that the coil axis (AX) of the coil (5) intersects the side surfaces (2c, 2d).

The application discloses a full-conductor coil horizontal epoxy pouring structure, which comprises an outer mold, an inner mold, a panel and an end plate, the outer mold comprises two half-elliptical mold plates, the longer side of the outer mold is provided with a panel opening, the panel is arranged at the panel opening, the inner side of the inner mold is provided with an inner mold support plate, a plurality of air channel fixing plates and built-in air channel square pipes are arranged at the interval between the inner mold and the outer mold, each air channel fixing plate and the built-in air channel square pipe are adjacently arranged, and the end plate is provided with two end plates which are arranged at the two ends of the outer mold respectively. The two half-elliptical mold plates are adopted to form the outer mold, the whole processing and production can be carried out, and the production cycle of the product is greatly shortened. The high-voltage coil is poured horizontally on the premise that the outer dimension is increased, the vertical pouring is changed into the horizontal pouring, the original equipment is maximized, and the utilization rate of the pouring equipment is improved.

The utility model discloses a common mode coupling inductor which is composed of a plurality of magnetic core bodies and a conductor coil which are preformed in a split mode, the conductor coil is a coupling metal coil formed by winding double wires in parallel, the conductor coil is provided with a hollow spiral winding section, and the winding section is compatible in an inner cavity of a surrounding cage assembled by the magnetic core bodies. And hot-pressing and packaging the obtained assembly into a whole in a forming mold. In particular, a plurality of the conductor coils are integrally mounted on the lead frame through the end portions in the assembled state of the inductor. According to the inductor, the lead frame is introduced in the manufacturing process of the inductor, and the end part of the conductor coil is welded with the lead frame before a product is combined and packaged, so that the firmness of protecting a welding spot in the hot-pressing packaging process of the product is realized, the electrode pins are formed by directly bending the lead frame part, the links of paint stripping and electroplating are omitted, and the production efficiency is improved. And the production efficiency and the yield of finished products can be improved.