Single-winding multi-speed motor pole change mechanism

Abstract

The invention discloses a single-winding multi-speed motor pole change mechanism, comprising a pole change shielding fixing seat assembly, a pole change assembly and a three-phase excitation sliding block assembly, the pole change assembly is composed of a pole change shielding guide rail, a three-phase inner side leading-out terminal, a three-phase inner side transfer block, a three-phase outer side transfer block and a three-phase outer side leading-out terminal, and the three-phase excitation sliding block assembly is composed of a pole change integrated sliding block, a three-phase copperplate frame, a three-phase leading-out plate and a three-phase leading-out fixing cover. According to the single-winding multi-speed motor pole change mechanism, the axial space size of the motor is reduced, so that the motor can realize three-speed pole change in a limited space, since the sliding of the pole change integrated sliding block along the pole change shielding guide rail is performedin a pole change fixing ring, motor conversion can be achieved, the positioning of a pole change speed can be achieved by the cooperation of protruding ends on the three-phase inner side transfer block and the three-phase outer side transfer block and a concave surface at the bottom of the three-phase copper plate frame, and the efficiency of the pole change motor is improved.

Description

technical field [0001] The invention relates to the technical field of pole-changing motors, in particular to a pole-changing mechanism of a single-winding multi-speed motor. Background technique [0002] The speed regulation of known pole-changing motors is generally achieved by changing the winding connection, and changing the series-parallel relationship of the motor windings through external switches. However, due to the complex structure, it is inconvenient to change the motor, and the efficiency of known pole-changing motors is lower than that of conventional general-purpose motors, so it cannot meet the requirements of users. Contents of the invention [0003] The purpose of the present invention is to provide a single-winding multi-speed motor pole-changing mechanism, which can reduce the axial space size of the motor, so that the motor can realize three-speed pole-changing in a limited space. The sliding of the guide rail is carried out in the pole-changing fixed...

AI Technical Summary

Problems solved by technology

However, due to the complex structure, it is inconvenient to change the motor, and the efficiency of the known pole-changing motor is lower than that of the conventional general-purpose motor, so it cannot meet the requirements of users.

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