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Electrical/mechanical/soundconverter and apparatus of electrical/mechanical/sound conversion device using the converter

An acoustic transducer and sound technology, applied in the fields of electro-mechanical/acoustic conversion devices and electro-mechanical/acoustic transducers, can solve the problems of unstable output, inability to provide input call alarms for users, etc.

Inactive Publication Date: 2004-12-01
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unstable output may result in failure to provide user with incoming call alerts via vibration

Method used

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  • Electrical/mechanical/soundconverter and apparatus of electrical/mechanical/sound conversion device using the converter
  • Electrical/mechanical/soundconverter and apparatus of electrical/mechanical/sound conversion device using the converter
  • Electrical/mechanical/soundconverter and apparatus of electrical/mechanical/sound conversion device using the converter

Examples

Experimental program
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Embodiment Construction

[0033] Exemplary embodiments of the present invention are described below with reference to FIGS. 1A to 6 .

[0034] first exemplary embodiment

[0035] A first exemplary embodiment of the present invention is described with reference to FIGS. 1A to 3 . Wherein, the same components as those in the prior art are denoted by the same reference numerals, so their descriptions are omitted.

[0036] In FIGS. 1A to 3, both ends of the housing 1a have open ends, and the notch recess 1a1 is provided outside it. A detection coil 11 is formed by winding a wire several times around the recess 1a1 of the housing 1a. In the above structure, the leakage magnetic flux of the movable member 2 is connected to the detection coil 11 .

[0037] Therefore, when the movable part 2 resonates because the input signal is added to the voice coil 5, the movable part 2 will vibrate strongly, and the leakage magnetic flux of the above-mentioned connection also has large fluctuations, thereby generating...

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Abstract

An electrical / mechanical / sound converter capable of stable operation when used in a mobile terminal such as a cellular phone to generate vibration for indicating an incoming call. The electrical / mechanical / sound converter comprises a housing (1a), and a detector coil (11) provided near a moving part (2) forming a magnetic circuit fitted with a suspension (3) into an opening in the housing (1a) to generate an excitation voltage from the vibration of the moving part (2). The electrical / mechanical / sound converter allows the detector coil (11) to detect strong vibrations of the moving part (2) in resonance as excitation voltage and feed it back, and provides extremely steady vibration even if the resonance frequency changes with variations in ambient temperature, etc.

Description

technical field [0001] The invention relates to an electric-mechanical / acoustic converter and an electric-mechanical / acoustic converting device using the converter, which is used for receiving call alarms and generating pagers in mobile terminals including mobile phones, pagers and PHS (Personal Handyphone System). Voice and vibration. Background technique [0002] Mobile terminals, including mobile phones, pagers and PHS conventionally use electro-mechanical / acoustic conversion devices, one type of device has an electro-mechanical / acoustic converter as its key component to generate buzzing sound, and another type of device uses a rotating motor to generate Vibrate, which allows users to select beep or vibration notifications for incoming calls. However, the use of a single electro-mechanical / acoustic conversion device to produce buzzing sound and vibration is still only an idea at present. [0003] 7 to 11 show conventional electro-mechanical / acoustic converting devices. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B06B1/02B06B1/04G10K9/12H04M19/04
CPCH04M19/04G10K9/12B06B2201/70B06B1/045B06B2201/53H04R2400/03B06B1/0246B06B1/0261B06B1/04
Inventor 榎本光高平田雅国福山敬则久世光一
Owner PANASONIC CORP