Gear drive motor

Abstract

A gear transmission motor capable of ensuring forming larger space of gear series bearing and promoting collocation freedom of gear series is provided in the present invention. The gear transmission motor comprises a salient pole type motor and a decelerating mechanism, the salient pole type motor has a stator including a plurality of pole teeth and coils, the decelerating mechanism rotationally processes to decelerate the motor, holes for bearing (36a to 36e) for holding the shaft of the decelerating mechanism (G) gear series gear are arranged on the stator iron core (32) on one side of motor (M) forming auxiliary pole (16b).

Description

technical field [0001] The invention relates to a gear transmission motor, in particular to a gear transmission motor which is mainly suitable for driving mechanisms such as a drain valve of a washing machine and an opening and closing louver of a ventilating fan. Background technique [0002] Conventionally, a geared motor in which a motor and a gear train are integrated is known. For example, an AC synchronous motor including a stator having a plurality of pole teeth is applied to a geared motor described in Patent Document 1. FIG. The plurality of pole teeth are composed of a plurality of main poles of approximately the same shape and a plurality of auxiliary poles slightly smaller than the main poles. In order to ensure startability, auxiliary poles are interposed between the main poles arranged at approximately equal intervals. to disrupt the balance of the magnetic field. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2002-262491 [0004] On the other han...

AI Technical Summary

Problems solved by technology

[0004] On the other hand, in a geared motor, in order to achieve thinning, there is a type in which the plate constituting the bearing of the gear train is omitted and the bearing of the gear train is formed on the remaining part after the pole teeth forming the stator core are cut out. In a motor, such as the motor described in Patent Document 1, if the auxiliary poles are arranged at positions facing each other, the main poles with a large area are concentrated and the auxiliary poles with a small area are scattered, so that the bearings of the gear train can be formed. Discrete position, the range of configurable gear trains is limited, or the gear train must be configured avoiding the auxiliary pole

Therefore, there is a problem that it is difficult to design the configuration of the gear train in order to obtain the desired gear ratio

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