Motor rotor, sewing machine energy saving motor by employing motor rotor and sewing machine of motor rotor

Abstract

The present invention discloses a motor rotor, a sewing machine energy saving motor by employing a motor rotor and a sewing machine of a motor rotor. The motor rotor comprises a rotating shaft and a rotor main body arranged on the rotating shaft, the rotor main body comprises an inner core and a plurality of magnetic tiles distributed at the outer peripheral face of the inner core, end caps covertwo end faces of the rotor main body, annular flanges are arranged at the circumferences of the end caps and are configured to wrap the magnetic tiles, and an annular groove which allows part of the magnetic tiles to be exposed is formed between the annular flanges of the two end caps. The annular flanges of the two end caps can wrap the magnetic tiles so as to avoid shedding of the magnetic tiles, ensure the stability of products and allow the motor rotor to be firmly assembled; and moreover, the annular groove allows part of the magnetic tiles to be exposed so as to reduce the influence of the end caps on the magnetism of the magnetic tiles.

Description

【Technical field】 [0001] The invention relates to a motor rotor, a motor and a sewing machine. 【Background technique】 [0002] The existing motor rotor mainly includes a rotating shaft, an annular inner core, and magnetic tiles arranged outside the annular inner core. The magnetic tiles are generally bonded to the peripheral surface of the annular inner core with glue, which is troublesome for workers to operate. At the same time, if the amount of glue used is insufficient, the magnetic tile may fall off, causing damage to the motor. 【Content of invention】 [0003] In order to solve the above problems, the present invention provides a motor rotor. The motor rotor of the present invention has a simple structure, which can ensure that the magnetic tiles are not easy to fall off, is assembled firmly, and is easy to manufacture. At the same time, the invention provides an energy-saving sewing machine motor and sewing machine including the motor rotor of the invention, which h...

AI Technical Summary

Problems solved by technology

[0002] The existing motor rotor mainly includes a rotating shaft, an annular inner core, and magnetic tiles arranged outside the annular inner core. The magnetic tiles are generally bonded to the peripheral surface of the annular inner core with glue, which is troublesome for workers to operate.

At the same time, if the amount of glue used is insufficient, the magnetic tile may fall off, causing damage to the motor

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