Instrument stepping motor structure of automobile or motorcycle

Abstract

The invention relates to an instrument stepping motor structure of an automobile or a motorcycle. The instrument stepping motor structure comprises a base and an upper cover, wherein a stator piece, a gear train, two coils and two corresponding iron cores are installed in a cavity between the base and the upper cover, the two iron cores are symmetrically arranged below the stator piece and are close to each other, and the gear train is arranged above the stator piece and avoids transverse interference of the coils on the two sides. According to the instrument stepping motor structure of the automobile or the motorcycle, due to the fact that the coils are assembled below the stator piece, the gear train can avoid axial interference of the coils, the distance between the two coils can be reduced, the width of the stator piece is reduced along with reduction of the distance between the coils, and the effect of saving materials and the effect of reducing cost are achieved; meanwhile, due to the fact that the coils are close to a rotor wheel, output torque is increased; due to the fact that the pluggable iron cores are adopted, material consumption can be reduced, and the effect of reducing cost is achieved; in addition, when wire winding of the coils is carried out, the iron cores may be not installed in the coils, positioning is carried out through iron core holes in wire frames, the wire frames can be clamped easily when winding is carried out, automatic feeding can be easily achieved, efficiency of wire winding is improved, and the effect of reducing cost can be achieved.

Description

technical field [0001] The invention relates to a stepping motor structure for an instrument of an automobile or a motorcycle. Background technique [0002] At present, the iron cores of the two coils of the stepper motors of automobiles and motorcycles on the market are assembled on the stator sheet. In order to avoid the gear train, the distance between the coil components is increased, resulting in an increase in the width of the stator sheet and the increase in material consumption. high cost. In addition, the iron core adopts the method of embedding the coil frame, which results in more materials for the iron core, and the coil winding is difficult and inefficient, thus increasing the cost. Contents of the invention [0003] In view of this, the object of the present invention is to provide a material-saving and cost-reducing automobile and motorcycle meter stepper motor structure. [0004] In order to achieve the above object, the technical solution of the present ...

AI Technical Summary

Problems solved by technology

[0002] At present, the iron cores of the two coils of the instrument stepper motors of automobiles and motorcycles on the market are assembled on the stator sheet. In order to avoid the gear train, the distance between the coil components is increased, resulting in an increase in the width of the stator sheet and an increase in the amount of materials used. high cost

In addition, the iron core adopts the method of embedding the coil frame, resulting in more materials for the iron core, and the difficulty of coil winding is high and the efficiency is low, thereby increasing the cost

Images