Ultra slow speed, large torsional moment, short magnetic circuit, speed regulation electric motor of heterotype rotor

Abstract

The invention belongs to the new area of electric magnetic application. The motor consists of the abnormal shape stator and rotator, the transducer / controller and the magnetic short path system with large and small teeth. The stator and the rotator under the electrified phase possesses equal tooth space while under the non-electrified phase possesses unequal tooth space. Controlling timely the electrifying time of the electrified phase or the current magnitude produces the magnetic resistance rotary moment. Thus, the motor will rotate under the defined speed, rotary moment and various running states of direction changing, braking, and electrical motioning or generating. The motor possesses the advantages of simple structure, easy to control and saving consumption greatly. The invention suits to use in the oil-field tube-type pump mechanical oil drawing, the water wheel generator and other technique area with low speed and large rotary moment.

Description

Technical field: [0001] The invention is an ultra-low-speed, high-torque, short-magnetic-circuit speed-regulating motor with a special-shaped rotor, which is a major technological breakthrough for the mechanical oil production drag device of an oilfield tubular pump, and is the patentee's "Low-speed, high-torque special-shaped motor with high efficiency and low consumption". The core component of "Intelligent Pumping Unit" (ZL O2 2 57259.7), which belongs to the new field of electromagnetic application. Background technique: [0002] Since the electromagnetic theory was applied to motor practice in the 1840s, the development of electric drive devices has continued to introduce new ones in the past two hundred years, and various motors such as AC synchronous, AC asynchronous, DC shunt excitation, series excitation, and compound excitation have splendor. Diverse, single-phase, two-phase and three-phase. The application of motors has greatly improved productivity and product q...

AI Technical Summary

Problems solved by technology

[0004] In order to achieve the above-mentioned purpose, the present invention breaks through the design mode of the traditional motor, and adopts a speed-regulating motor designed with phase pole independent magnetic circuit, unequal tooth pitch, special-shaped rotor, and short magnetic circuit structure of large and small teeth, which overcomes the low speed, large The problem that the torque is not easy to achieve, supplemented by the power electronic control circuit can realize the control of the speed, steering, and torque, and the four-quadrant operation has realized a revolutionary breakthrough in the driving device in the fields such as oilfield tubular pump mechanical oil production.

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