Winding method of double-layer fractional-slot concentrated winding of motor

Abstract

The invention discloses a winding method of a double-layer fractional-slot concentrated winding of a motor, which comprises the steps of sequentially winding a first coil to a twelfth coil on a first tooth to a twelfth tooth of a stator iron core by the same enameled wire, sequentially winding the first coil, the fourth coil, the fifth coil, the eighth coil, the ninth coil and the twelfth coil, reversely winding the second coil, the third coil, the sixth coil, the seventh coil, the tenth coil and the eleventh coil, clockwise rotating the iron core by 30 degrees after the former coil is wound, then winding subsequent coils, clockwise rotating by 30 degrees to reset until the twelfth coil is wound; and cutting off the tail end of the twelfth coil and the enameled wire bound to a wire starting column, wherein the head ends of the first coil and the seventh coil, the head ends of the third coil and the ninth coil and the head ends of the fifth coil and the eleventh coil are connected respectively, the tail ends of the second coil and the eighth coil, the tail ends of the fourth coil and the tenth coil and the tail ends of the sixth coil and the twelfth coil are connected respectively to serve as the tail ends of an A-phase winding, a B-phase winding and a C-phase winding in sequence, each phase winding is provided with two parallel branches, and each parallel branch is composed of two coils. Winding according to the tooth sequence of the iron core is combined with small-angle stepping clockwise rotation. The method is high in work efficiency.

Description

【Technical field】 [0001] The invention relates to a winding method of a double-layer fractional slot concentrated winding of a motor, belonging to the technical field of three-phase motor windings. 【Background technique】 [0002] The existing 12-48V low-voltage DC three-phase motor uses double-layer fractional slot concentrated windings to be wound on a single-needle winding machine, and the 10-pole motor is wound in series. see Figure 4 , 5 As shown, the specific steps are as follows: [0003] On the 1st tooth, 2nd tooth, 7th tooth, and 8th tooth of the stator core, wind counterclockwise, clockwise, clockwise, and counterclockwise in turn, and wind four serially connected coils Q'1, Q '2, Q'7 and Q'8 to complete the winding operation of the U-phase winding; on the 9th, 10th, 3rd and 4th teeth of the stator core, counterclockwise, clockwise and clockwise Winding clockwise and counterclockwise, winding four coils Q'9, Q'10, Q'3 and Q'4 connected in series to complete the ...

AI Technical Summary

Problems solved by technology

[0004] Since the winding of each phase is not wound on the teeth arranged in the order of the stator core, it needs to be processed for long-distance crossing wires and bridge wires, so the winding efficiency is low

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