35results about How to "Simple winding structure" patented technology

A brushless direct current (BLDC) motor has a 3-phase winding 20 and six stator teeth 14, 15 with alternate stator teeth 14 being wound and the remaining stator teeth 15 being left unwound. The winding 20 has three legs, one for each phase and each leg has one coil 22 wound about one of the stator teeth 14. Each leg has a first end A,B,C, arranged to receive electrical power and a second end X,Y,Z, which is connected to the second end of the other legs to form a star connection 24. Selected stator teeth have grooves in a face thereof dividing those teeth into a plurality of stator poles. The motor may be used to drive a fuel pump for an internal combustion engine, typically for a vehicle.

Embodiments of the invention disclose a magnetic levitation switch reluctance flywheel motor and a decoupling control method. The magnetic levitation switch reluctance flywheel motor comprises an outer rotor iron core (1) and a stator iron core (4), wherein the outer rotor iron core (1) and the stator iron core (4) are nested in sequence in a concentric manner; the outer rotor iron core (1) comprises a salient pole rotor (2) and a cylindrical rotor (3) in an axial recombination manner; eight rotor salient poles are arranged on the inner wall of the salient pole rotor (2) at equal intervals; each rotor salient pole has no winding; twelve stator salient poles (5) are arranged on the outer wall of the stator iron core (4) at equal intervals; and each stator salient pole is wound by a set of stator windings (6). By adoption of the embodiments of the magnetic levitation switch reluctance flywheel motor and the decoupling control method, the decoupling control on an electric / power generation function and a radial levitation function can be realized; the flywheel rotor strength can be enhanced; the size of the overall machine can be reduced; the dynamic characteristics and the stability of the system are improved; and the high-adaptivity characteristic of the magnetic levitation switch reluctance flywheel motor is further performed.

The invention relates to a method for winding a superconducting magnet. Two or more single cakes are used to wind two single cakes into double cakes from one strip. One side of each is provided with a protruding ring, and the other side is provided with a recessed part; 2) Winding double cakes: first, fix the position of a single cake spool, wind the strip from the end point to the fixed spool, And weld the strip and the contact surface of the bobbin together; secondly, synchronously rotate the fixed bobbin and the tape reel, and wind the strip on the fixed bobbin; thirdly, after the total length of the strip is determined, the strip is cut off and fixed Another single-cake spool, weld the truncated part of the strip on the single-cake spool, rotate the two single-cake spools synchronously, and wind the strip from one spool to the other spool; finally, when the strip of the two pies When the material length and the number of turns are equal, stop the synchronous rotation, fix one of the spools, translate and rotate the fixed single cake, so that the two single cakes overlap to form a transition layer; 3) Magnet assembly: the protruding ring of the double cake spool is inserted into the phase The recess adjacent to the double pie spool. The invention can be widely applied to the winding of various superconducting magnets.

The invention relates to the technical field of motors, in particular to a disc stepping motor, thus the problems of unreasonable structure, low intensity and the like in the prior art are solved. The motor comprises a disc motor shell which is formed by fastening and fixing a front end cover and a rear end cover; a motor shaft is arranged in the motor shell in a penetrating mode and is fixedly provided with a multipolar magnetizing circular disc which is positioned in the motor shell; windings adjacent to the circular disc are fixed in the motor shell; and iron cores are respectively fixed at two sides of the circular disc. The disc stepping motor has the advantages that the whole circular disc is in an integral structure, which can effectively improve the excitation performance of rotors and simplify the whole structure; the mechanical strength is high, a loose structure does not occur due to long service and the suffered impact; the structure is convenient to process and lower in manufacturing cost; the winding structure is simple and is easy to process; and in addition, because a position sensor is configured to inspect positions of the rotors, semi-closed loop control is realized.

The invention discloses a traction transformer, which belongs to the technical field of rail transit power supply and transformation. The three-phase windings on the primary side are star-connected, the first ends A, B, and C of the three-phase windings AX, BY, and CZ on the primary side are connected to the three-phase power grid; the three-phase windings ax, by, and cz on the secondary side are connected in a △ shape, that is The first end a of the winding ax is connected to the tail end z of the winding cz to form a terminal r, the head end b of the winding by is connected to the tail end x of the winding ax to form a terminal s, the first end c of the winding cz is connected to the tail end y of the winding by to form a terminal t; the terminal r , s, and t form a three-phase symmetrical connection; pull out terminal d at the midpoint of the secondary winding by, terminal r and terminal d form port rd, and port rd and port st form a two-phase symmetrical connection; three-phase symmetrical connection is used for power lighting Power supply; two-phase symmetrical wiring is used for traction power supply, which can be three-phase--two-phase balanced power supply mode, or the same-phase power supply mode. It is mainly used for traction power supply and power lighting power supply of rail transit.

The invention discloses a brushless motor stator and a brushless motor. The brushless motor stator includes a stator core assembly and a stator winding wound on the stator core assembly. Winding teeth, there is a slot between any two adjacent winding teeth, the stator winding is accommodated in each slot and wound on each winding tooth, the stator winding includes several phase windings, each phase winding includes two The adjacent lead ends of any adjacent two-phase windings pass through the same slot. The adjacent lead ends of the adjacent two-phase windings in the brushless motor stator of the above embodiments of the present invention pass through the same wire slot, which simplifies the winding structure of the stator winding, makes it simple in structure, good in manufacturability, and efficient. High, and it is not easy to scratch the bridge wire, which can reduce the risk of inter-turn short circuit.

The invention discloses a cloth winding drum split winding mechanism. The mechanism comprises a machine frame, wherein a support frame and two placement frames are fixed to the top surface of the front end of a top plate of the machine frame, winding support blocks are fixed to the left part and the right part of the top surface of the rear end of the top plate of the machine frame, and a windingroller is arranged between the two winding support blocks. According to the cloth winding drum split winding mechanism, the two ends of a cloth winding drum roller can be mounted on a roller body connecting seat, and the roller body connecting seat can be automatically lifted, lowered and conveyed; when the mechanism is disassembled, the roller body connecting seat and the cloth winding drum roller are taken out at the same time, and a new cloth winding drum roller with a new roller body connecting seat well mounted is directly lifted, conveyed and lowered, thus completing the installation, and in this way, automatic mounting and dismounting of the cloth winding drum roller is achieved, high efficiency and fast replacement can be achieved; and meanwhile, a winding structure is simple in structure, and the winding roller and a rotary connecting block can be automatically mounted on the winding support blocks through the operation of a mobile main motor, mounting and dismounting are convenient, the automation degree is high, and the production efficiency is greatly improved.

The invention relates to the field of DC / DC conversion, and aims at providing a rectifier circuit for realizing the voltage clamp of a rectifier tube by using a double-power transformer. The rectifier circuit comprises two power transformers, four rectifier diodes, and two auxiliary capacitors, wherein two secondary windings of the power transformer have a center-tapped rectifying structure respectively. The rectifier circuit of the invention simplifies the winding structure of each transformer, and enhances the use ratio of a magnetic core window. On different occasions, primary windings of the two power transformers can adopt a serial or parallel connection structure flexibly. The rectifier circuit of the invention can effectively restrain the parasitic oscillation of voltages on the rectifier tube by aid of nondestructive capacitance energy-storage components without any active auxiliary devices; the production of the center-tapped secondary windings of the power transformer is relatively simple, and the connection between the transformers and the external electric components is reduced, which is helpful for improving power density. Therefore, the rectifier circuit is suitable for topological structures of various converters.

The invention discloses a wave energy power generating device based on a serial connection linear magnetic gear motor, and belongs to a power generating device combining a linear magnetic gear and a permanent-magnet linear motor through serial connection. The wave energy power generating device comprises a permanent-magnet linear motor part, a linear magnetic gear part, a floating tube, a floater, an external encapsulation device and a base, wherein an outer rotor is driven by a driving motor and a mechanical transmission part to move in a certain moving range, the goal of variable transmission ratio is achieved, and the whole set of device has the advantages that the additional arrangement of a huge accelerator is not needed, the size is smaller, the energy capturing and power generating efficiency is high, no terminal winding is adopted, no radial force is exerted on a bearing, and the like.