Single-phase quadrupole series excitation motor

Abstract

The invention discloses a single-phase quadrupole series excitation motor. A stator is fixed in a frame; four first tooth grooves are evenly formed in the circumferential direction of the stator; an exciting winding is wound in each first tooth groove; a rotating shaft is perpendicular to the stator; a rotor is arranged at the inner side of the stator and is sleeved on the rotating shaft; a plurality of second tooth grooves are formed in the rotor; and an armature winding is wound in each second tooth groove. A PCB is sleeved on the rotating shaft, and is fixed to the frame; four electric brushes are evenly fixed to the PCB in a surrounding mode; the two diagonal electric brushes are connected in parallel through the PCB; the exciting windings are connected to the corresponding electric brushes; and the exciting windings are connected with the armature winding in series. The single-phase quadrupole series excitation motor adopts the PCB used for achieving connection of the electric brushes to replace an original bakelite brush box or an epoxy glass cloth board, so that distribution of lead wires in the motor can be reduced; and the motor is simpler in manufacturing process and smaller in the occupied space.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a single-phase four-pole series motor. Background technique [0002] Traditional single-phase series motors use bakelite brush boxes or epoxy glass cloth boards to position the carbon brushes, and at the same time use copper sleeves with better conductivity to fix the carbon brushes, which play the role of insulation and fixing. [0003] In order to improve the performance of the motor, the 2-pole motor is now designed as a 4-pole motor. figure 1 For the motor schematic diagram of the improved single-phase four-pole series motor, the traditional bakelite brush box or epoxy glass cloth plate is used to fix the carbon brushes, and the four carbon brushes are independent of each other; but in order to meet the normal operation of the motor, the diagonal The carbon brushes are connected in parallel, so the lead wires of the motor are many and messy, and the manufacturing process of t...

AI Technical Summary

Problems solved by technology

[0003] In order to improve the performance of the motor, the 2-pole motor is now designed as a 4-pole motor. figure 1 For the motor schematic diagram of the improved single-phase four-pole series motor, the traditional bakelite brush box or epoxy glass cloth plate is used to fix the carbon brushes, and the four carbon brushes are independent of each other; but in order to meet the normal operation of the motor, the diagonal The carbon brushes are connected in parallel, so the leads of the motor are more and messy, the manufacturing process of the motor is more cumbersome, and the production takes a long time

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