Magnetic lag synchronous motor and its making technology

Abstract

The invention relate to a magnet-lagging synchronized motor. An iron core is provided in a housing, and a rotating shaft passes through the iron core; a lower stator claw pole component with a plurality of lower claw poles is sheathed on the upper part of the iron core, and the adjacent lower claw poles are separated by a lower short-circuit ring to form a shading pole; a stator winding is sheathed in the middle of the iron core; an upper stator claw pole with a plurality of upper claw poles is sheathed on the lower part of the iron core, and an upper short-circuit ring is sheathed on the upper claw poles, the adjacent upper claw poles are separated by the upper short-circuit ring to form a shading pole, and an inner short-circuit ring is sheathed on the middle part of the iron core; annular clearances are formed between the lower stator claw pole component and the upper stator claw pole; and a rotor ring is positioned between the annular clearances. The process for manufacturing the motor comprises stamping, stress annealing, spot welding, bending, vacuum quenching, rivet pressing, welding, injection molding, encapsulating, and assembling. The inventive magnet-lagging synchronized motor has the advantages of novel and simple structure, convenient manufacturing, and low cost.

Description

technical field [0001] The invention relates to a hysteresis synchronous motor and its manufacturing process, in particular to a hysteresis synchronous motor suitable for occasions requiring frequent start and stop, momentary pause and constant torque. Background technique [0002] The hysteresis synchronous motor is a kind of AC motor. The rotor is a hysteresis rotor made of hysteresis material. The stator is slotted, and different forms of windings can be distributed in the slot according to needs. The rotation of the motor depends on the action of the rotating magnetic field of the stator, which makes the rotor generate hysteresis torque, starts the motor and pulls it into synchronous operation. Compared with other synchronous motors, the hysteresis motor has good starting performance. Generally, the power index of the hysteresis motor is not high, and its starting current is almost the same as the rated operating current. When the power supply voltage and load fluctuate,...

AI Technical Summary

Problems solved by technology

The core slot and winding structure of the hysteresis synchronous motor mentioned above are relatively complex, bulky, and difficult to process, resulting in high cost, high noise during motor operation, and relatively narrow application range

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