Stepping motor rotor and stepping motor with same

Abstract

The invention relates to a stepping motor rotor and a stepping motor with the same. The stepping motor rotor comprises a front rotor iron core, a rear rotor iron core, an interval circular ring piece located between the two rotor iron cores, a motor rotating shaft, a front rotor iron core magnetic strip and a rear rotor iron core magnetic strip. The front rotor iron core and the rear rotor iron core are formed by laminating rotor punching sheets layer by layer, a plurality of rotor teeth are uniformly distributed on the outer circumferences of the rotor punching sheets, rotor grooves are defined between adjacent rotor teeth, the front rotor iron core magnetic strips are located in the rotor grooves of the front rotor iron core, and the rear rotor iron core magnetic strips are located in the rotor grooves of the rear rotor iron core. The rear rotor iron core magnetic strips are located in the grooves of the rear rotor iron core; the number of the rotor magnetic strips of the front rotor iron core magnetic strips and the number of the rotor magnetic strips of the rear rotor iron core magnetic strips are smaller than the number of the corresponding rotor grooves. Compared with the prior art, the motor has the advantages that the process difficulty of the motor is reduced, the manufacturing cost of the motor is also reduced, and the like.

Description

technical field [0001] The invention relates to a stepping motor, in particular to a stepping motor rotor and a stepping motor with the rotor. Background technique [0002] Such as Figure 1-4 Shown, the existing stepper motor rotor assembly. It is composed of a front rotor core 2, a rear rotor core 3 and a spacer ring piece 4 between the two rotor cores. The front rotor core 2 and the rear rotor core 3 will deflect at a certain angle in the radial direction. [0003] Such as Figure 5 and 6 As shown, the rotor core is formed by laminating rotor punches 11 layer by layer. A certain number of rotor teeth 12 are evenly distributed on the outer circumference of the rotor punches, and rotor slots 13 are defined between the rotor teeth 12 . The existing front rotor iron core magnetic strip 5 is located in the slot of the front rotor iron core 2 , and the existing rear rotor iron core magnetic strip 6 is located in the slot of the rear rotor iron core 3 . [0004] In the prior...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the existing front rotor core magnetic strip 5 and the existing rear rotor core magnetic strip 6 have the same number of front and rear rotor core slots, and when the number of rotor core slots is large, the number of magnetic strips is also large. The process is very complicated and the manufacturing cost is also very high

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