10 results about "Circular coil" patented technology

The application discloses a composite diamagnetic coil for a magnetic confinement fusion device and a system thereof. The composite diamagnetic coil uses the core and the skin of a coaxial coil as a concentric circular coil and a compensation coil respectively, so that the measurement positions of the two sets of coils are consistent, and the concentric circular signal is compensated by the compensation coil, thereby reducing the measurement error while reducing the workload of eddy current compensation.

The utility model relates to a kind of long circular coil straightening tool in coil straightening technical field, including bearing table, X-axis straightening assembly and Y-axis straightening assembly, the bearing table middle part is equipped with the X-axis let room slot that passes through up and down and the Y-axis let room slot that passes through up and down, the X-axis let room slot is equipped with two along Y-axis let room slot symmetry;The straightening assembly includes slide rail, the slide rail each section has a pair of synchronous and opposite moving direction shaping part, and a pair of shaping part is connected with movable pad by elastic member, to support the area of coil corresponding let room slot;The utility model is equipped with X-axis straightening assembly and Y-axis straightening assembly, and the shaping part of a pair of synchronous opposite moving direction driven by combination bidirectional screw rod, the inner ring and outer ring of coil can be synchronously pressed and straightened;Effectively solve the problem that coil inner ring cannot be shaped in prior art, avoid coil installation difficulty caused by inner ring warping, wrinkle or protrusion.

A wire winding device for valve reactors includes a winding base, winding tower blocks, a winding wheel assembly, and a shim block. The winding base includes a main body, winding stations, and positioning mounting holes. Each winding station has a positioning mounting hole. Each winding tower block includes a main body, a insertion hole, and a winding groove. The winding wheel assembly includes a winding frame, a winding shaft, and a winding wheel. This wire winding device for valve reactors sets a winding tower block at each corner of a non-circular coil. Each winding tower block is independent, and its height is stacked according to the number of winding turns. During the winding process, each tower block does not interfere with the others. It is suitable for winding non-circular coils of different shapes, ensures the quality stability of the coil, reduces the labor intensity of workers, and improves processing efficiency.

The utility model discloses a kind of annular array type arc sheet shape rhombic coil stacking positioning tool, including the center cylinder of overall cylindrical, the side wall of center cylinder is annularly provided with sliding hole, one positioning column is slidably connected in each sliding hole, and the end of positioning column away from the center axis of center cylinder is positioning end;The stacking positioning tool includes positioning state and material withdrawal state;When positioning state, the positioning end of all positioning columns is all stretched out the outside wall of center cylinder;When material withdrawal state, all positioning end is housed in sliding hole.Compared with prior art, the utility model changes the center cylinder of cylindrical into traditional planar coil stacking tool, and under positioning state, the positioning column of protruding outside center cylinder is distributed, to provide condition for realizing that multiple arc sheet shape rhombic coil is stacked along circle.In material withdrawal state, positioning column is withdrawn to center cylinder, does not affect that circular coil is along the axial direction of center cylinder and is taken out, facilitate to realize unloading.

An electric motor as well as a manufacturing method for the electric motor and a manufacturing tool are provided, the electric motor being for a deep well vertical turbine pump and having a stator assembly that has a stator bore to hold a rotor and slots that are radially open to the inside, respectively separated from each other by a stator tooth, and in which electrical conductors made of round wire of coils of a coil assembly lie, with the distributed windings on one axial end of the coil assembly forming a winding head in which the coils are encapsulated. The winding head only extends between an inner diameter and an outer diameter which is smaller than the diameter of the stator bore in which the coil assembly is inserted axially into the slots of the stator assembly.

The application relates to the field of glass tube heaters and preparation technology thereof, in particular to a glass tube heater and an electric heating wire forming device. The glass tube heater comprises a nickel-chromium alloy electric heating wire which is wound into a non-circular cross-section coil, wherein the cross-section of the coil can be a polygon and has smooth round corners, preferably a central symmetrical hexagonal star shape, six corners are arranged along the radial direction and two edges are parallel to each other. In addition, an electric heating wire forming device for manufacturing the above-mentioned glass tube heater is also provided, which comprises an inner clamp and an outer stamping clamp, the cross-section profile of the inner clamp is the same as the cross-section inner profile of the non-circular coil, the outer stamping clamp comprises a plurality of stamping heads and a linear driving component, and a guide sleeve and a retraction cylinder. Through optimization of the electric heating wire shape and the forming process, the application improves the heating efficiency and the service life, and simplifies the production process.

This invention provides an EMF filter device with improved heat exchange efficiency, enabling the generation of a stronger magnetic field by passing more current through an improved heat exchanger and internal structure of the EMF system. [Solution] The EMF filter device 100 includes a cylindrical filter body 110 with a central tube 115, a plurality of coil sections 120 arranged in a stack to surround the central tube of the filter body, each having a circular coil plate surrounding the central tube and insulating material between the circular coil plates, a plurality of flow path partitions extending from the inner wall of the filter body and in contact with the outer walls of the plurality of coil sections, arranged at predetermined angular intervals on the inner wall of the filter body, a plurality of cooling flow path spacers arranged between the plurality of coil sections, and an insulating oil cooler 150 connected to the filter body to cool the inside of the filter body by circulating cooling oil.

This invention relates to the field of power electronics technology and discloses a parallel shielded coil structure and its optimization method. The optimization method is based on a parallel shielded coil structure, which includes a transmitting coil, a receiving coil, a first compensation coil, a second compensation coil, and a resonant compensation circuit. The transmitting and receiving coils are coaxial, tightly wound circular coils, while the first and second compensation coils are parallel, concentric, tightly wound circular coils. The method determines the number of turns of the transmitting and receiving coils, their axial distance, the axial distance between the first and second compensation coils, and the coil placement relationship. It optimizes the number of turns of the first and second compensation coils and the distance between the transmitting and compensation coils. Based on the optimization results, the parameters of the compensation capacitor in the resonant compensation circuit are obtained. This effectively suppresses leakage magnetic fields without adding an additional shielding coil, and also improves energy transmission efficiency and space compactness.

Polyphase wireless power transfer systems are provided. The transfer system may be used for charging hybrid and electric vehicles. The systems are capable of transferring over 50 KW over an air gap of 15 cm. The systems use a rotating magnetic field to transfer power. The system may comprise transmitter coil assembly. The coil assembly may be one or more layers. The system may employ either unipolar or bipolar coils. The transmitter also comprises compensating capacitance connected in series with at least one coil for each phase. A value of the compensating capacitance for each phase is determined such that the transmitter has at least two independently excitable resonant modes at a resonant frequency. The transmitter is compatible with a plurality of different receivers including three-phase, single phase with a circular coil and single phase with DD coils.

This invention provides an EMF filtration device for improving heat exchange efficiency, comprising: a cylindrical filter body with a central tube; a plurality of coil sections arranged in a stacked manner around the central tube of the filter body, and having a circular coil plate covering the central tube and insulating material disposed between the circular coil plates; a plurality of flow path blocking baffles extending from the inner wall of the filter body and contacting the outer wall of the plurality of coil sections, and arranged at predetermined angles on the inner wall of the filter body; a plurality of cooling oil passage baffles disposed between the plurality of coil sections; and an insulating oil cooler connected to the filter body for circulating and supplying cooling oil to the interior of the filter body for cooling.