DC vibration motor

Abstract

The invention discloses a DC vibration motor, relating to a technical field of the motor having one rotor and one stator. The motor comprises a housing, a stator and a rotor; the stator comprises an upper winding shaft, a lower winding shaft, a stator group and coils; a stator group comprises a C-shaped left stator group and a C-shaped right stator group; two free ends of the left stator group and the right stator group are arranged oppositely and then a rectangle-shaped coil winding frame is constituted; the coils are respectively wound on two horizontal parts of the winding frame; and after two coils are simultaneously powered on, the N poles and the S poles of the two coils are on same sides, and the S poles and the N poles of the two coils are on other same sides. The left stator group and the right stator group which have single polarity interact with each other to form an external magnetic field; a magnetic field torque is generated between the external magnetic field and the rotor to drive the rotor to rotate; and strength of a magnetic field under a common action of two winding coils are bigger, so that the output torque of the motor is bigger.

Description

technical field [0001] The invention relates to the technical field of a motor with a rotor and a stator, in particular to a DC vibration motor with a larger output torque. Background technique [0002] Devices such as electric toothbrushes, cell phones, portable game consoles, or pagers use vibration motors. There are roughly two types of vibrating motors in the prior art, one with a structure such as figure 1 As shown, the shaft is set eccentrically, and this structure cannot achieve the shaft at the center (under the same requirements, the force and space are not enough). Another structure such as figure 2 As shown, the axis is set in the center. However, the motor with the second structure uses a single wire package, the winding space is small, the winding is complicated, the efficiency is low, the flatness is poor, the output torque is small, and the assembly process is complicated. Contents of the invention [0003] The technical problem to be solved by the pres...

AI Technical Summary

Problems solved by technology

However, the motor with the second structure uses a single wire package, the winding space is small, and the winding is complicated, the efficiency is low, the flatness is poor, the output torque is small, and the assembly process is complicated.

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