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Multifunction vibration actuator and portable terminal device

A multi-functional, actuator technology, applied in the directions of loudspeakers, sensors, electrical components, etc., can solve the problems of small acceleration, high manufacturing cost, deviation, etc., achieve simple adjustment structure, reduce manufacturing cost, high speed and high speed. Precisely fixed effect

Inactive Publication Date: 2007-03-21
NAMIKI PRECISION JEWEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, if the vibration frequency deviates from the target value, the acceleration obtained in actual use will be small, and the quality of the finished product cannot be stably obtained due to the deviation of the precision of the parts, so there are problems such as high manufacturing costs.

Method used

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  • Multifunction vibration actuator and portable terminal device
  • Multifunction vibration actuator and portable terminal device
  • Multifunction vibration actuator and portable terminal device

Examples

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Embodiment Construction

[0024] An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 5 , the multifunctional vibration actuator A of the present invention has, in a cylindrical housing 1 , a magnetic circuit part 2 and a suspension that elastically supports the magnetic circuit part 2 from below. 3. The vibrating film 4 arranged opposite to the magnetic circuit part 2, and the voice coil 5 fixed on the vibrating film 4 and inserted into the annular magnetic gap part 2a of the magnetic circuit part 2, inputting sound to the voice coil 5 signal, the vibrating membrane 4 slightly vibrates to emit sounds such as incoming calls, melody sounds, voices, and music. In addition, when a signal current with a vibration frequency of 120 to 160 Hz flows through, there is a mechanism including the weight of the magnetic circuit part 2 and the suspension 3. Vibration system vibrates sharply.

[0025] The housing 1 is a cylindrical housing for accommod...

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Abstract

The invention aims to accurately tune the frequency of vibration by means of a suspension during assembly. Securing planned positions (3e) where a magnetic circuit portion (2) is secured to a suspension (3) are provided near to each other. From among the securing planned positions (3e), a securing planned position (3e) corresponding to the characteristics of the suspension (3) to be mounted or the weight of the magnetic circuit portion (2) is selected, and they are secured to each other. Thus, the length from the securing position to the vibration center position of the suspension (3) and a housing (1) is varies so that the frequency may be tuned to a desired value.

Description

technical field [0001] The present invention relates to a multifunctional vibration actuator and a portable terminal equipped with the actuator. The device notifies the user of an incoming call by sound or vibration. More specifically, it relates to a multi-functional actuator in which a magnetic circuit unit, a suspension (suspension) for elastically supporting the magnetic circuit unit with respect to the housing, a vibrating membrane disposed opposite to the magnetic circuit unit, and a magnetic circuit unit are housed in a housing. And the voice coil provided on the vibrating film and inserted into the magnetic gap of the magnetic circuit unit transmits the vibration of the suspension fixing the magnetic circuit unit to the outside through the case by passing a signal of a vibration frequency to the voice coil. Background technique [0002] In the past, as this kind of multifunctional vibration actuator, there is a structure as follows: a yoke (yoke) that fixes the magn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/10H04R9/02H04R31/00
CPCH04R2400/07H04R2400/03H04R9/025H04R2499/11H04R31/003
Inventor 上田稔竹内谕士大野悦男
Owner NAMIKI PRECISION JEWEL CO LTD
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