High-voltage motor convenient to adjust magnetic path characteristic of motor

Abstract

A high-voltage motor that is convenient for adjusting the magnetic circuit characteristics of the motor, including a stator and a stator slot, and a coil is embedded in the stator slot, and is characterized in that it also includes a slot wedge arranged at the opening of the stator slot, and the slot wedge is "T" It is composed of a protruding tenon end and slot cover ends located on both sides of the tenon end and extending in opposite directions; the center line of the tenon end and the connection line between the two slot cover ends are basically in an orthogonal relationship; adjacent on the stator There is a tenon groove between the stator slots, and the tenon end is matched and embedded in the tenon groove on the stator. The slot cover ends of adjacent slot wedges jointly complete the coil fixing in the stator slot. The slot cover ends of two adjacent slot wedges There is a magnetic circuit gap between them; the first backing plate, the coil, the second backing plate and the thermal expansion glass felt are arranged in sequence in the stator slot. The invention reduces the surface loss and pulse vibration loss of the motor, improves the efficiency of the motor, the end of the slot wedge and the stator are tightly fitted, is not easy to loose, has high limit reliability and long service life, and is beneficial to reduce the vibration and noise of the motor operation .

Description

technical field [0001] The invention relates to a motor, in particular to a high-voltage motor which is convenient for adjusting the magnetic circuit characteristics of the motor. Background technique [0002] With the increasingly wide application of medium-sized high-voltage motors and the continuous increase in the pressure to reduce the manufacturing cost of motors, reducing the loss of corresponding auxiliary materials for motors has become an important issue for all motor manufacturers. At present, the commonly used motor auxiliary materials are mainly insulating materials and slot wedges. The insulating materials are used for the insulation protection of the formed coil. fixed. Slot wedges mostly use non-magnetic slot wedges and magnetic slot wedges. The application of magnetic slot wedges has the following problems: Under the action of electromagnetic force and mechanical stress, "mechanical corrosion" or "electrical corrosion" occurs on the magnetic slot wedge, an...

AI Technical Summary

Problems solved by technology

The application of magnetic slot wedges has the following problems: Under the action of electromagnetic force and mechanical stress, "mechanical corrosion" or "electrical corrosion" occurs on the magnetic slot wedge, and there are alternating main magnetic flux and magnetic flux leakage on the magnetic slot wedge If it passes through, it will be subjected to electromagnetic pulling force in the magnetic field of the motor. This force will directly destroy the magnetic slot wedge and affect the service life of the magnetic slot wedge; it will cause the slot wedge to loosen or even fall off during the long-term operation of the motor. The phenomenon seriously affects the normal use of the motor

Images