Alternating current capacitor motor with starting operating characteristic of direct current motor

Abstract

The invention discloses an alternating current capacitor motor with the starting operating characteristic of a direct current motor. A circular hole with the diameter of 42mm is formed in the inner edge of a convex pole piece of the inner iron core of the stator; the convex pole pieces are 16mm in width; the arc line between the two sections of straight lines of the adjacent convex pole pieces is an inwardly-concave arc line with the radius of 21mm; the radial distance from the arc line to the edge of the circular hole is 2.5mm; the arc line between the two sections of straight lines of the adjacent connecting grooves of the outer iron core of the stator is an arc line with the radius of 36mm; and the thickness H of the stator boot of the yoke ring piece of the outer iron core of the stator is 12mm. The alternating current capacitor motor has the advantages as follows: the alternating current capacitor motor combines the electrical functional characteristics of the shaded-pole type motor and the capacitor motor, overcomes the shortcomings and deficiencies of the shaded-pole type motor and the capacitor motor, and has good starting and operating, and rotary speed characteristics; meanwhile, the starting operating characteristic curve of the alternating current capacitor motor is quite close to that of the direct current motor; the alternating current capacitor motor is energy-saving in a comprehensive manner, safe in operation, and green and environment-friendly; and in addition, the main electrical parameters are greatly improved, the size is greatly reduced, and the manufacturing costs of the steel, aluminum and copper materials are greatly lowered, so that the alternating current capacitor motor becomes the substitute product of the conventional shaded-pole motor.

Description

technical field [0001] The invention relates to a single-phase AC motor, in particular to an AC capacitor motor with the characteristics of starting and running a DC motor. Background technique [0002] At present, the motors used on the market are mainly shaded pole motors and capacitor motors. Shaded-pole motors in the prior art have poor main electrical functions and low power factor: generally 0.36-0.6; low efficiency: generally 4%-20%; energy conversion rate is extremely low, only about 5%, that is, the rated speed The difference with the synchronous speed is large, generally 0.2; the speed regulation performance is poor, and the speed regulation range is small and unchanged. The bandwidth is narrow and the power consumption is large. Capacitor motors have complex structures and manufacturing processes, poor speed regulation performance, and many running accidents. At the same time, they are bulky, have many consumables, and have high manufacturing costs. Including c...

AI Technical Summary

Problems solved by technology

Capacitor motor has complex structure and manufacturing process, poor speed regulation performance, many operation accidents, large volume, many consumables, and high manufacturing cost

Including capacitor motors, their applicability is poor

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