KR20040105535A

KR20040105535A - Bone conduction sound reproducing apparatus having permanent magnet applying vibration to diaphragm

Info

Publication number: KR20040105535A
Application number: KR1020030070772A
Authority: KR
Inventors: 양호준
Original assignee: 양호준
Priority date: 2003-10-07
Filing date: 2003-10-07
Publication date: 2004-12-16

Abstract

PURPOSE: A bone conduction sound reproducing apparatus is provided to reproduce sounds using a simple structure. CONSTITUTION: A bone conduction sound reproducing apparatus includes a body(10), a fixing coil(9), a chin(11), and a diaphragm(1). The body is made of a non-magnetic material. The fixing coil is wound on a lower portion of the body. The lower portion of the body is penetrated. The chin is installed on an upper portion of the body. The vibration plate includes a permanent magnet(8) therein. The fixing coil is turned into an electromagnet when an electric signal is applied to a line(7). The permanent magnet is pushed or pulled according to the electric signal to vibrate the diaphragm. The bone conduction sound reproducing apparatus is applicable to a speaker, a micro speaker, and earphones.

Description

Sound playback device {omitted}

종래의 소리 재생 장치는 무빙코일 방식으로 구조가 복잡하고 제작이 어려우며 이어폰과 같은 소형의 경우 골도 청음이 어려웠다.The conventional sound reproducing apparatus has a complicated structure in a moving coil method, and is difficult to manufacture.

구조가 간단하고 마이크로 스피커, 이어폰, 스피커로 활용이 가능한 영구자석 진동형 소리재생 장치로서 특히 마이크로 스피커, 이어폰의 경우 골도 청음이 가능한 영구자석 진동형 소리재생 장치를 제공하는데 목적이 있다.As a permanent magnet vibration type sound reproduction device that is simple in structure and can be used as a micro speaker, earphone, or speaker, an object of the present invention is to provide a permanent magnet vibration type sound reproduction device capable of hearing bones.

도 1 종래의 이어폰의 단면도1 is a cross-sectional view of a conventional earphone

도 2 본 발명의 이어폰 단면도2 is a cross-sectional view of the earphone of the present invention

상기의 목적을 달성하기 위하여 바람직한 실시예를 첨부한 도면에 의하여 상세히 설명하면 다음과 같다.In order to achieve the above object, a preferred embodiment will be described in detail with reference to the accompanying drawings.

여기서는 크기가 다를뿐 기본 원리가 동일하므로 이어폰을 중심으로 설명하며 스피커류를 통칭하여 소리 재생 장치로 호칭한다.In this case, the basic principle is the same, but the size is different, and the earphone is mainly described.

도1은 종래의 이어폰의 단면도로서 몸체(4)의 내부에 요크(5)가 설치되고 몸체(4)의 외부에 터미널 프레이트(6)이 고정설치 되고 몸체(4)의 상부에 링(2)가 조립되고 그 위에 무빙코일(3)이 장착된 진동판(1)이 조립되어 외부로 부터 인가되는 신호전류가 인입선(7)로 인가되면 무빙코일(3)에 전류가 흘러 자계가 형성되고 요크(5)에 설치된 자석과 작용하여 신호가 정역됨에 따라 흡인과 반발을 반복하면서 진동판(1)을 진동시켜 소리를 재생하는 구조로 되어 있으며 피부에 이어폰을 밀착시키면 골도 청음이 어렵다.1 is a cross-sectional view of a conventional earphone, the yoke 5 is installed inside the body 4, the terminal plate 6 is fixed to the outside of the body 4, and the ring 2 is placed on the upper part of the body 4. Is assembled and the diaphragm 1 having the moving coil 3 mounted thereon is assembled, and when a signal current applied from the outside is applied to the lead wire 7, current flows through the moving coil 3 to form a magnetic field, and the yoke ( 5) It is designed to vibrate the diaphragm (1) while repeating the suction and repulsion as the signal is reversed by working with the magnet installed in the structure to reproduce the sound.

도2는 본 발명의 이어폰 단면도로서 몸체(10)은 비자성체의 제질로 제작되며 몸체(10)의 아래쪽에 고정코일(9)가 감겨지고 몸체(10)의 하부는 관통되어 있으며 몸체(10) 상부에 턱(11)이 설치되고 영구자석(8)이 고정설치된 진동판(1)로 구성되어 외부로 부터 전기신호가 인입선(7)로 인가되면 고정코일(9)에 전류가 흘러 고정코일(9)가 전자석이 되어 전기신호의 정역 변화에 따라 진동판(1)에 고정되어 있는 영구자석(8)을 당기거나 밀면서 진동판(1)을 진동시켜 소리를 재생시키게 되는 구조로 되어 있으며 이 때 영구자석(8)과 고정코일(9)는 서로 작용과 반작용의 운동을 한다.2 is a cross-sectional view of the earphone of the present invention, the body 10 is made of a non-magnetic material, the fixing coil 9 is wound on the lower portion of the body 10 and the lower portion of the body 10 is penetrated, the body 10 It consists of a diaphragm (1) having a jaw (11) is installed on the upper portion and a permanent magnet (8) is fixedly installed. When an electric signal is applied from the outside to the lead wire (7), current flows through the fixed coil (9). ) Becomes an electromagnet and vibrates the diaphragm 1 while pulling or pushing the permanent magnet 8 fixed to the diaphragm 1 in accordance with the change of the stationary signal of the electric signal. 8) and the fixed coil (9) is a movement of the action and reaction with each other.

이 소리재생 장치에 의하면 영구자석(8)은 진동판(1)을 진동시키는 역할을 하는 반면 고정코일(9)가 감겨있는 고정코일(9)의 반력에 의한 진동으로 몸체(10)이 잔동하게 되며 피부에 이어폰을 밀착시키면 이 진동이 골도에 전달되므로 골도로 청음이 가능하게 되며 마이크로 스피커에도 적용이 가능하다.According to the sound reproducing apparatus, the permanent magnet 8 plays a role of vibrating the diaphragm 1, while the body 10 remains after vibration by the reaction force of the fixed coil 9 on which the fixed coil 9 is wound. When the earphone is in close contact with the skin, this vibration is transmitted to the bone bone, so that it can be heard through the bone bone and can be applied to the micro speaker.

또한 규격이 다르지만 스피커에 이 원리를 적용하면 소리재생이 가능한 대형스피커를 만들수 있다..In addition, although the specifications are different, applying this principle to the speaker can make a large speaker capable of reproducing sound.

구조가 간단하면서 골도 청음이 가능한 유용한 소리 재생 장치이다.It is a useful sound reproducing device that is simple in structure and capable of listening to bones.

Claims

The body 10 is made of a non-magnetic material, the fixing coil 9 is wound on the bottom of the body 10, the lower portion of the body 10 is penetrated, and the jaw 11 is installed on the upper portion of the body 10. And the permanent magnet 8 is fixed to the diaphragm 1, and when an electric signal is applied to the lead wire 7 from the outside, current flows through the fixed coil 9 so that the fixed coil 9 becomes an electromagnet. Sound reproduction device, characterized in that the vibrating diaphragm (1) to vibrate and reproduce the sound while pulling or pushing the permanent magnet (8) fixed to the diaphragm (1) according to the station and can be applied to speakers, micro speakers, earphones.