Vibration motor

A vibration motor and drive mechanism technology, applied in electrical components, electromechanical devices, electric components, etc., can solve the problems of vibration motor damage, abnormal output shaft angle, and shortened service life.

Active Publication Date: 2015-05-20
揭阳市顺资电子实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the armature component or the coil has a small fault, it is easy to produce an abnormal angle of rotation (also called swing) of the output shaft along the axis. The above-mentioned abnormal angle may not be easily noticed by the user when using it, but for nursing appliances, It is easy to cause damage to the vibration motor when rotating / swinging at the above abnormal angle for a long time, reducing its service life

Method used

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Embodiment Construction

[0013] The present invention will be described in further detail below in conjunction with accompanying drawing and specific embodiment: see Figure 1 to Figure 2 , a vibration motor, including a housing 1, the housing 1 includes an upper end cover 10 and a lower end cover 11, an output shaft 2 is rotated in the housing 1, and in the upper end cover 10 and the lower end cover 11 A bearing 8 for supporting the output shaft 2 is provided, and two oppositely placed coils 4 are provided on the side wall of the housing 1, and AC power is passed through the coils 4 so that an alternating current is formed between the coils. The magnetic field also includes a gear switch 5 for controlling the frequency of the AC power supply, and an armature component 3 corresponding to the coil 4 is fixedly arranged on the output shaft 2 . There is a gap between the armature component 3 and the coil 4, so that the output shaft 2 can reciprocate at a specific angle within the range of the gap, and th...

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Abstract

The invention discloses a vibration motor, and belongs to the field of a motor. The vibration motor comprises a casing, wherein an output shaft is rotationally arranged in the casing, the side wall of the casing is provided with two coils in opposite arrangement, an alternating current power supply is introduced into each coil, an armature component responding to the coils is fixedly arranged on the output shaft, and an armature responds to magnetic field changes in the coils, so that the output shaft does rotation at a specific angle along the axis, a triggering switch is arranged in the casing and is positioned beyond the swinging angle of the output shaft, and when the swinging angle of the output shaft is abnormal, the armature arranged on the output shaft is in contact with the triggering switch. Compared with the prior art, the vibration motor has the advantages that when a nursing tool swings at an abnormal angle, the abnormity is detected through the triggering switch, so that a user is reminded to repair and maintain the nursing tool in time.

Description

technical field [0001] The invention belongs to the field of motors, and more specifically relates to a vibration motor. Background technique [0002] Vibration motors are motors commonly used in personal care appliances, such as electric toothbrushes, electric face washers, etc., all have vibration motors inside, and the output shaft of the vibration motor is connected to the brush head to transfer the vibration of the output shaft of the vibration motor to the brush head. site transfer. The vibration motor of the existing vibration motor includes a housing, in which there are two oppositely placed coils, an AC power supply is passed through the coils, and a gear switch for controlling the frequency of the AC power supply is also included. The output shaft is rotatably arranged inside the housing, and armatures are arranged at both ends of the output shaft, and the armature responds to the change of the magnetic field in the coil so that the output shaft moves along the sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K33/12H02K5/22
Inventor 梁荣
Owner 揭阳市顺资电子实业有限公司
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