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Vibration motor and its working frequency adjustment method

A technology of vibration motor and adjustment method, which is applied in the direction of AC motor control, electromechanical devices, electrical components, etc., can solve the problems of single output vibration sense, reduced vibration sense, long vibration unit start-up and braking time, etc., to achieve real-time Short settling, braking and start-up times to achieve the effect of operating frequencies

Inactive Publication Date: 2019-03-29
AAC TECH NANJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effective operating frequency of the vibration motor is only near the resonant frequency, and the real-time adjustment of the effective operating frequency of the vibration unit cannot be realized, so that the vibration sense is greatly reduced when it is far away from the resonant frequency, and the start-up and braking time of the vibration unit is longer, and the output single vibration

Method used

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  • Vibration motor and its working frequency adjustment method
  • Vibration motor and its working frequency adjustment method
  • Vibration motor and its working frequency adjustment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Please refer to figure 1 with figure 2 ,among them, figure 1 It is an exploded view of the three-dimensional structure of the first embodiment of the vibration motor of the present invention; figure 2 It is a cross-sectional view of the first embodiment of the vibration motor of the present invention. The vibration motor 1 includes a housing 11, a vibration unit 12 housed in the housing 11, an elastic member 10 that suspends the vibration unit 12 in the housing 11, and a device that drives the vibration unit 12 to reciprocate and vibrate. Coil (not shown). The vibration motor also includes a first suction member 13 fixed to one end of the vibration unit 12, a second suction member 14 fixed on the inner wall of the housing 11 and opposite to the first suction member 13, and fixed to the The third suction member 15 at the other end of the vibration unit 12 and the fourth suction member 16 fixed on the inner wall of the housing 11 and arranged opposite to the third suctio...

Embodiment 2

[0056] Please refer to Picture 10 with Picture 11 ,among them, Picture 10 It is an exploded view of the three-dimensional structure of the second embodiment of the vibration motor of the present invention; Picture 11 It is a cross-sectional view of the second embodiment of the vibration motor of the present invention. The vibration motor 2 includes a housing 21, a vibration unit 22 housed in the housing 21, an elastic member 20 that suspends the vibration unit 22 in the housing 21, and a device that drives the vibration unit 22 to reciprocate and vibrate. Coil (not shown). The coil is electrically connected to an external control circuit. The vibration motor further includes a first suction member 23 fixed to one end of the vibration unit 22 and a second suction member 24 fixed on the inner wall of the housing 21 and arranged opposite to the first suction member. Wherein, the control circuit can generate a motor control signal to control the reciprocating movement of the v...

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PUM

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Abstract

The invention provides a vibration motor. The motor comprises an outer shell, a vibration unit contained in the outer shell, and a coil driving the vibration unit to vibrate reciprocally. The vibration unit comprises a first end part and a second end part arranged in opposition in the vibration direction. The motor is characterized in that the vibration motor comprises a first adsorbing part fixed to the first end part, and a second adsorbing part fixed to the inner wall of the outer shell and located in opposition to the first adsorbing part; the first and second adsorbing parts are used for generating adsorbing force to be adsorbed together or removing the adsorbing force to get detached based on external adsorption control signals. The vibration motor is short in vibration starting and braking time, capable of real-time adjustment of the working frequency. The invention further provides a regulating method of the working frequency of the vibration motor.

Description

【Technical Field】 [0001] The invention relates to the field of vibration motors, in particular to a vibration motor and a method for adjusting the working frequency of the vibration motor. 【Background technique】 [0002] A vibration motor is a component that uses the principle of electromagnetic force generation to convert electrical energy into mechanical energy. The vibration motor is usually installed in a portable mobile device to generate vibration feedback, such as mobile phone vibration or game console vibration feedback. [0003] In the related art, the vibration motor uses the resonance principle to obtain a greater vibration in the vicinity of the resonance frequency during operation. However, the effective working frequency of the vibrating motor is only near the resonance frequency, and real-time adjustment of the effective working frequency of the vibrating unit cannot be achieved, which greatly reduces the vibration feeling far away from the resonance frequency, and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P25/06H02K33/16
CPCH02K33/16
Inventor 郭顺毛路斌王洪兴王尧
Owner AAC TECH NANJING