KR20020057898A - structure of grill for a multi function sounder - Google Patents

structure of grill for a multi function sounder Download PDF

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Publication number
KR20020057898A
KR20020057898A KR1020020029679A KR20020029679A KR20020057898A KR 20020057898 A KR20020057898 A KR 20020057898A KR 1020020029679 A KR1020020029679 A KR 1020020029679A KR 20020029679 A KR20020029679 A KR 20020029679A KR 20020057898 A KR20020057898 A KR 20020057898A
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South Korea
Prior art keywords
case
yoke
grill
air hole
adhesion
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KR1020020029679A
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Korean (ko)
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전창만
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전창만
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Priority to KR1020020029679A priority Critical patent/KR20020057898A/en
Publication of KR20020057898A publication Critical patent/KR20020057898A/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/172—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body electrical or electronic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/82—Internal energy supply devices
    • A61M2205/8206—Internal energy supply devices battery-operated

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

PURPOSE: A grill structure of a multi-function electroacoustic transducer is provided to ensure a firm adhesion and increase an easiness of adhesion, stability of adhesion state and durability of adhesive force by enabling a plane adhesion and horizontal surface adhesion of an air hole screen controlling an air flow of a receiver unit, and facilitate a case injection operation by naturally forming air holes of the receiver unit. CONSTITUTION: The first yoke(130) doubly coupled with the second yoke(140) by a magnet(150) is inserted at the inner side of a case(100'). A receiver unit(110) is formed such that a vibration plate(118) which has a coil and is vertically moved between the first yoke(130) and the second yoke(140) with the magnet(150) inserted therebetween is adhered at an upper surface of annular protrusions(111) with a plurality of grooves(112) therein at the upper side of the first yoke(130). A ring-inserted grill(200) is mounted and adhesively fixed at an upper side of the receiver unit(110) so that an inner face of the upper exterior of the case(100'), the recess portion of a ring and the groove(112) of the annular protrusion(111) naturally form an air hole. An air hole screen(116) is adhered at a step(211) of the ring and at an outer upper side of the case(100'). A speaker is formed such that the plurality of air holes(121) are formed at a middle portion of the stepped case(100'), a vibration plate with a coil positioned between the first yoke(130) and the second yoke(140) and vertically moved is adhered at a lower inner side of the case(100'), and a grill is insertedly fixed at an inner side of a lower portion of the case(100').

Description

다기능 전자음향변환기의 그릴구조{structure of grill for a multi function sounder}Structure of grill for a multi function sounder

본 발명은 다기능 전자음향변환기의 그릴 구조에 관한 것으로, 더욱 상세하게는 스피커의 출력 특성에 영향을 미치지 않도록 스피커의 에어홀을 차단하지 않으면서도 리시버부의 공기 흐름을 제어하는 에어홀 스크린의 평면 접착을 용이하게 하고, 제작에 어려움 없이 리시버부의 에어홀이 자연스럽게 형성되도록 하는 다기능 전자음향변환기의 그릴 구조에 관한 것이다.The present invention relates to a grill structure of a multifunctional electro-acoustic transducer, and more particularly, to planar adhesion of an air hole screen for controlling the air flow of the receiver unit without blocking the air hole of the speaker so as not to affect the output characteristics of the speaker. The present invention relates to a grill structure of a multifunction electroacoustic transducer that facilitates and allows air holes to be naturally formed without difficulty in manufacturing.

일반적으로 휴대폰, 노트북 PC 등과 같은 개인 휴대용 통신 단말기에는 자기회로를 가지는 버저, 스피커, 리시버 등의 기능을 수행하는 다기능 전자 음향 변환기(Multi function Device)가 내장되어 진동기능을 통해 음향을 변환시킨다.In general, a personal portable communication terminal such as a mobile phone or a notebook PC has a built-in multi function device that performs functions such as a buzzer, a speaker, and a receiver having a magnetic circuit to convert sound through a vibration function.

상기와 같은 다기능 전자음향변환기(10)의 구조는 여러 가지가 있으나, 첨부 도면 도 1 내지 도 4에서 보는 바와 같이, 요크2(13)에 의해 케이스(10') 내측이 상, 하부로 분리되어 각기 다른 기능을 하도록 된 구조의 다기능전자음향변환기(10)는 일측면에 각 진동판(14),(15)의 진동에 의해 공기가 흘러 내부 압력을 조절하도록 하는 에어홀(16),(17)을 케이스(10') 사출 성형 시 형성시켜 구비하고 있다.The structure of the multifunctional electro-acoustic transducer 10 as described above is various, but as shown in the accompanying drawings, FIGS. 1 to 4, the inside of the case 10 ′ is separated into upper and lower portions by the yoke 2 13. The multi-function electro-acoustic transducer 10 has a structure to perform different functions, the air holes 16, 17 to control the internal pressure of the air flow by the vibration of each of the diaphragm 14, 15 on one side Is formed in case 10 'injection molding.

참고로, 리시버부(11)의 에어홀(16)에 에어홀 스크린(미도시)을 부착하는 것은 일반적인 것으로, 이는 리시버부(11)의 진동판(14) 내, 외부로 이동하는 공기의 흐름을 제어(조절)하여 유럽에서 범용적으로 요구하는 리시버의 그룹 스페셜 모바일 특성(GSM : 출력이 평탄성을 갖는 특성)을 맞추기 위한 것이다.For reference, it is common to attach an air hole screen (not shown) to the air hole 16 of the receiver part 11, which indicates the flow of air moving in and out of the diaphragm 14 of the receiver part 11. This is to control (adjust) to meet the group special mobile characteristics (GSM: characteristics of output flatness) of the receiver which are universally required in Europe.

첨부 도면 도 1 및 도 2에서와 같은 리시버와 스피커 기능을 하는 종래의 다기능 전자음향변환기(10)의 경우, 리시버부(11)의 에어홀(16)과, 스피커부(12)의 에어홀(17)이 폭이 좁고 다단으로 형성된 케이스(10')의 외주면에 형성되어 있으며, 도시된 바와 같이, 에어홀 스크린이 부착되어 있지 않아 리시버부(11)의 진동판(14) 내, 외부로 이동하는 공기의 흐름을 제어(조절)하여 유럽에서 범용적으로 요구하는 리시버의 그룹 스페셜 모바일 특성을 만족시키지 못하는 실정이다.In the conventional multifunction electroacoustic transducer 10 having a receiver and a speaker function as shown in FIGS. 1 and 2, the air hole 16 of the receiver 11 and the air hole of the speaker 12 17 is formed on the outer circumferential surface of the casing 10 ′, which is narrow and formed in multiple stages. As shown in the drawing, the air hole screen is not attached to the diaphragm 14 of the receiver unit 11 so as to move to the outside. By controlling (regulating) the flow of air, it does not meet the group special mobile characteristics of receivers that are universally required in Europe.

만약, 리시버부(11)의 에어홀(16)에 에어홀 스크린을 부착한다 하더라도 그 부착 부위가 내측으로 깊이 위치하고 있어 에어홀(16)을 부착하기가 매우 어려운 문제점이 있다할 것이다.If the air hole screen is attached to the air hole 16 of the receiver part 11, the attachment portion is deeply located inward, and thus it may be very difficult to attach the air hole 16.

또한, 첨부 도면 도 3 및 도 4에서와 같은, 다른 종래의 다기능 전자음향변환기(10)에서 에어홀(16),(17)이 형성되는 상부면은 그 구조적 특성상 대부분 에어홀(16),(17)이 일측면에 형성될 수밖에 없으며, 그 형성부분 또한 다단으로 형성될 수밖에 없어, 리시버부(11)가 평탄성을 갖는 출력 특성을 갖도록 하기 위해 리시버부(11)의 에어홀(16)에 공기의 흐름을 제어(조절)하도록 하는 에어홀 스크린을 부착하여야 하나 케이스(10') 면이 다단으로 이루어진 에어홀(16) 형성 부분에 에어홀 스크린을 부착하기란 매우 난해한 일일뿐 아니라, 스피커부(12)의 에어홀(17)과 근접해 있어, 에어홀 스크린 접착 작업이 용이하지 못한 문제점이 있는 것이었다.3 and 4, the upper surface of the air holes 16 and 17 is formed in other conventional multifunction electroacoustic transducers 10. 17) may be formed on one side, and the forming part may also be formed in multiple stages, so that the air in the air hole 16 of the receiver 11 may have a flat output characteristic. The air hole screen should be attached to control (adjust) the flow of air, but it is very difficult to attach the air hole screen to the air hole 16 forming part of the casing 10 ', which is made of multiple stages. It was close to the air hole 17 of 12, and there was a problem that the air hole screen adhesion work was not easy.

즉, 서로 반대 방향으로 위치한 리시버부(11)와 스피커부(12)는 각 진동판(14),(15)에 의해 밀폐된 공간의 내측면으로부터 외측으로 공기의 흐름 통로인 에어홀(16),(17)을 외부로 형성하여야 하나, 리시버부(11)와 스피커부(12)가 마주보고 있기 때문에 어느 한쪽 방향으로 두 에어홀(16),(17)을 형성할 수밖에 없으며, 이때 에어홀(16),(17) 형성 부분은 다단으로 이루어져 있어 접착이 용이하지 못할 뿐 아니라, 접착력이 견고하지 못한 문제점이 있으며, 진동판(15) 내, 외부로의 원활한 공기 흐름이 요구되는 스피커의 특성상 스피커부(12)의 에어홀(17)을 에어홀 스크린이 차단하여서는 안되므로, 리시버부(11)의 에어홀(16)에 에어홀 스크린을 접착하기가 매우 난해하며, 용이하지 못한 문제점이 있는 것이었다.That is, the receiver part 11 and the speaker part 12 which are located in opposite directions from each other are the air holes 16 which are air flow passages from the inner surface of the space enclosed by the diaphragm 14 and 15 to the outside. (17) should be formed outside, but since the receiver 11 and the speaker 12 face each other, there is no choice but to form two air holes 16 and 17 in either direction. 16), (17) formed part is made of a multi-stage not only easy to bond, but also has a problem that the adhesive strength is not strong, the speaker portion due to the characteristics of the speaker requiring a smooth air flow to the outside, the diaphragm 15 Since the air hole screen should not block the air hole 17 of (12), it is very difficult to adhere the air hole screen to the air hole 16 of the receiver portion 11, and it was not easy.

또한, 그릴(18)은 얇은 판체로 이루어져 있기 때문에 케이스(10')의 내주면에 끼우고 접착하여야 하나, 케이스(10')의 일측은 첨부 도면 도 1에서 보는 바와 같이, 접하는 면이 형성되어 있지 않아 접착의 안정성 및 지속성이 떨어지는 문제점이 있는 것이었다.In addition, since the grill 18 is made of a thin plate body, it should be inserted and bonded to the inner circumferential surface of the case 10 ', but one side of the case 10' is not provided with a contact surface as shown in FIG. It did not have the problem of poor stability and persistence of adhesion.

상기와 같은 문제점을 고려하여 이루어진 본 발명은 스피커의 출력 특성에 영향을 미치지 않도록 스피커의 에어홀을 차단하지 않으면서도 리시버부의 공기 흐름을 제어하는 에어홀 스크린의 평면 접착을 용이하게 하고, 제작에 어려움 없이 리시버부의 에어홀이 자연스럽게 형성되도록 하는 다기능 전자음향변환기의 그릴 구조를 제공함을 기술적 과제로 삼는다.The present invention made in view of the above problems is to facilitate the plane adhesion of the air hole screen to control the air flow of the receiver portion without blocking the air hole of the speaker so as not to affect the output characteristics of the speaker, difficult to manufacture It is a technical problem to provide a grill structure of a multifunctional electro-acoustic transducer that allows air holes to be naturally formed without a receiver.

상기 과제를 달성하기 위한 본 발명은 리시버 및 스피커 기능을 수행하도록 된 다기능 전자음향변환기에 장착되는 그릴 구조에 있어서, 외주면에 단턱이 형성된 링을 그릴의 외주면에 인서트시켜서 이루어짐을 특징으로 한다.The present invention for achieving the above object is characterized in that the grill structure is mounted on the multifunction electroacoustic transducer to perform the function of the receiver and the speaker, characterized in that made by inserting a ring formed with a step on the outer peripheral surface of the grill.

도 1은 종래의 다기능전자음향변환기의 구조를 보인 사시도1 is a perspective view showing the structure of a conventional multifunction electroacoustic transducer

도 2는 종래의 다기능전자음향변환기의 구조를 보인 단면도Figure 2 is a cross-sectional view showing the structure of a conventional multifunction electroacoustic transducer

도 3은 또 다른 종래 전자음향변환기의 구조를 보인 사시도Figure 3 is a perspective view showing the structure of another conventional electroacoustic transducer

도 4는 또 다른 종래 전자음향변환기의 구조를 보인 단면도Figure 4 is a cross-sectional view showing the structure of another conventional electroacoustic transducer

도 5는 본 발명의 구성을 보인 사시도5 is a perspective view showing the configuration of the present invention

도 6은 본 발명의 구성을 상세히 보인 분리 사시도Figure 6 is an exploded perspective view showing in detail the configuration of the present invention

도 7은 본 발명과 케이스 외곽 상단면에 에어홀 스크린이 접착되는 상태를 보인 사시도Figure 7 is a perspective view showing a state in which the air hole screen is bonded to the upper surface of the present invention and the outer case

도 8은 본 발명의 조립된 상태를 상세히 보인 A-A선 단면도8 is a cross-sectional view taken along line A-A showing the assembled state of the present invention in detail;

<도면의 주요부분에 대한 부호설명><Code Description of Main Parts of Drawing>

100 : 다기능 전자음향변환기 100': 케이스100: multi-function electro-acoustic transducer 100 ': case

110 : 리시버부 111 : 환형돌턱110 receiver unit 111 annular projection

112 : 홈 115 : 에어홀112: groove 115: air hole

116 : 에어홀 스크린116: air hole screen

118 : 진동판 119 : 코일118: diaphragm 119: coil

120 : 스피커부 121 : 에어홀120 speaker portion 121 air hole

122 : 코일 123 : 진동판122: coil 123: diaphragm

124 : 그릴 130 : 요크1124 Grill 130 York 1

140 : 요크2 150 : 마그네트140: York 2 150: Magnet

200 : 그릴 210 : 링200: grill 210: ring

211 : 단턱211: step

본 발명을 설명하기 위한 첨부도면 도 5는 본 발명의 구성을 보인 사시도이고, 도 6은 본 발명의 구성을 상세히 보인 분리 사시도이고, 도 7은 본 발명과 케이스 외곽 상단면에 에어홀 스크린이 접착되는 상태를 보인 사시도이며, 도 8은 본 발명의 조립된 상태를 상세히 보인 A-A선 단면도로서, 이중 도면부호 100은 다기능 전자음향변환기를 나타내며, 200은 본 발명인 그릴을 나타낸다.5 is a perspective view showing the configuration of the present invention, Figure 6 is an exploded perspective view showing the configuration of the present invention in detail, Figure 7 is an air hole screen is bonded to the upper surface of the present invention and the outer case 8 is a cross-sectional view taken along line AA showing the assembled state of the present invention in detail, double reference numeral 100 denotes a multifunctional electroacoustic transducer, and 200 denotes a grill according to the present invention.

첨부 도면 도 5 내지 도 8에서 보는 바와 같이, 본 발명은 리시버 및 스피커 기능을 수행하도록 된 다기능 전자음향변환기(100)에 장착되는 그릴(200) 구조에 있어서, 외주면에 단턱(211)이 형성된 링(210)을 그릴(200)의 외주면에 인서트시켜서 이루어진 것이다.5 to 8, in the grill 200 structure mounted on the multifunction electroacoustic transducer 100 configured to perform a receiver and a speaker function, a ring having a stepped portion 211 formed on an outer circumferential surface thereof is formed. It is made by inserting 210 to the outer circumferential surface of the grill 200.

본 발명인 상기 그릴(200)은 첨부 도면 도 8에서 보는 바와 같이, 마그네트(150)에 의해 요크2(140)와 이중으로 결합되는 요크1(130)를 케이스(100') 내측에 인서트 시키고, 요크1(130)의 상부면에 다수개의 홈(112)이 형성된 환형돌턱(111) 상부면에 마그네트(150)가 삽입된 요크1(130)와 요크2(140) 사이에서 상,하로 이동하는 코일(119)이 설치된 진동판(118)을 부착하여서 되는 리시버부(110)의 상부면 에 링(210)이 인서트된 그릴(200)을 안착시켜 접착 고정하므로써 케이스(100')의 상부 외곽 내측면과 링(113)의 유격진 부분 및 링(210)과 환형돌턱(111)의 홈(112)이 자연적으로 에어홀(115)이 되도록 하고, 링(210)의 단턱(211)과 케이스(100')의 외곽 상단면에 에어홀 스크린(116)을 접착시켜서 된 것이다.As shown in FIG. 8, the grill 200 of the present invention inserts the yoke 1 130 coupled to the yoke 2 140 by the magnet 150 to the inside of the case 100 ′, and the yoke. A coil moving up and down between the yoke 1 (130) and the yoke 2 (140) in which the magnet 150 is inserted into the upper surface of the annular projection (111) having a plurality of grooves (112) formed on the upper surface of the first (130). By attaching and fixing the grill 200 in which the ring 210 is inserted to the upper surface of the receiver unit 110 to which the diaphragm 118 in which 119 is installed is attached and fixed to the upper outer inner surface of the case 100 '. The clearance portion of the ring 113 and the grooves 112 of the ring 210 and the annular projection 111 naturally become the air holes 115, and the stepped portion 211 and the case 100 ′ of the ring 210 are formed. By attaching the air hole screen 116 to the outer top surface of the).

참고로, 스피커부(120)는 단턱진 케이스(100')의 중간 부분에 다수개의 에어홀(121)을 형성하고, 요크1(130)와 요크2(140) 사이에 위치하여 상, 하로 이동하는 코일(122)이 설치된 진동판(123)을 케이스(100')의 하부 내측면에 부착하고, 케이스(100') 하단부 내측에 그릴(124)을 삽입 고정하여서 된 것이다.For reference, the speaker unit 120 forms a plurality of air holes 121 in the middle portion of the stepped case 100 ′, and is positioned between the yoke 1 130 and the yoke 2 140 to move up and down. The diaphragm 123 in which the coil 122 is installed is attached to the lower inner surface of the case 100 ', and the grill 124 is inserted and fixed inside the lower end of the case 100'.

이와 같이 되는 본 발명은 케이스(100') 내측의 환형돌턱(111) 부분에 케이스(100')의 외곽 상단면과 동일한 높이가 되도록 링(210)이 인서트된 그릴(210)을 안착시켜 링(210)의 단턱(211) 부분과 케이스(100')의 외곽 상단면이 수평이 되도록 하므로써, 환형돌턱(111)에 형성된 홈(112)의 상부를 자연스럽게 차단하여 홈 형상이 아닌 구멍 형상으로 변화시켜 에어홀(115)이 형성되도록 함과 동시에, 서로 높이가 다른 환형돌턱(111)과 케이스(100')의 외곽 상단면으로 인해 부착이 난해했던 에어홀 스크린(116)을 링(210)의 평탄한 면으로 이루어진 단턱(211) 부분에 부착하게 되므로, 접착이 견고해질 뿐 아니라, 수평으로 동일한 높이를 갖는 면에 부착하게 되므로, 접착이 용이해지고, 접착 상태가 안정적이며, 접착력의 지속성이 증대되게 된다.In the present invention as described above, the ring 210 is inserted into the ring 210 into which the ring 210 is inserted so as to have the same height as the outer top surface of the case 100 'on the annular projection 111 inside the case 100'. By making the stepped portion 211 of the 210 and the outer top surface of the case 100 'horizontal, the upper portion of the groove 112 formed in the annular projection 111 is naturally blocked to change into a hole shape instead of a groove shape. The air hole screen 116, which is difficult to attach due to the outer top surface of the annular projection 111 and the case 100 ', which has a height different from each other while allowing the air hole 115 to be formed, is flat Since it is attached to the stepped portion 211 made of a surface, not only the adhesion is firm, but also attached to the surface having the same height horizontally, the adhesion is easy, the adhesion state is stable, the durability of the adhesion is increased .

상기와 같이 되는 본 발명은 리시버부의 공기 흐름을 제어하도록 하는 에어홀 스크린의 평면 접착 및 수평 접착이 가능하도록 하므로써 접착이 견고해질 뿐 아니라, 접착의 용이성, 접착 상태의 안정성 및 접착력의 지속성이 증대되도록 하는 한편, 리시버부의 에어홀이 자연스럽게 형성되도록 함으로써, 케이스 사출 작업이 용이해지도록 하는 효과를 갖는다.As described above, the present invention enables not only the adhesiveness to be firm, but also the ease of adhesion, the stability of the adhesion state, and the persistence of the adhesive force by allowing the plane adhesion and the horizontal adhesion of the air hole screen to control the air flow of the receiver. On the other hand, by allowing the air hole of the receiver portion is formed naturally, it has the effect of facilitating the case injection operation.

Claims (1)

리시버 및 스피커 기능을 수행하도록 된 다기능 전자음향변환기(100)에 장착되는 그릴(200) 구조에 있어서, 외주면에 단턱(211)이 형성된 링(210)을 그릴(200)의 외주면에 인서트시켜서 이루어짐을 특징으로 하는 다기능 전자음향변환기의 그릴구조.In the grill 200 structure mounted on the multifunction electro-acoustic transducer 100 to perform the receiver and speaker functions, it is made by inserting the ring 210 having the stepped portion 211 formed on the outer circumferential surface to the outer circumferential surface of the grill 200. Grill structure of a multifunctional electro-acoustic transducer characterized in that.
KR1020020029679A 2002-05-28 2002-05-28 structure of grill for a multi function sounder KR20020057898A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07177598A (en) * 1993-12-17 1995-07-14 Star Micronics Co Ltd Electroacoustic transducer and its manufacture
JPH117285A (en) * 1997-06-18 1999-01-12 Sanyo Electric Co Ltd Leaf spring used for vibration type siren, siren for joint use of sound/vibration and portable electronic equipment
KR20000012495A (en) * 1999-12-08 2000-03-06 김충지 Speaker having a device capable of generating both sound and vibration
KR20000063452A (en) * 2000-07-13 2000-11-06 김낙현 Yoke structure of signal converting apparatus
KR20010037969A (en) * 1999-10-21 2001-05-15 송재인 producing system of vibration and sound
KR20010055234A (en) * 1999-12-10 2001-07-04 송재인 producing system of vibration and sound

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07177598A (en) * 1993-12-17 1995-07-14 Star Micronics Co Ltd Electroacoustic transducer and its manufacture
JPH117285A (en) * 1997-06-18 1999-01-12 Sanyo Electric Co Ltd Leaf spring used for vibration type siren, siren for joint use of sound/vibration and portable electronic equipment
KR20010037969A (en) * 1999-10-21 2001-05-15 송재인 producing system of vibration and sound
KR20000012495A (en) * 1999-12-08 2000-03-06 김충지 Speaker having a device capable of generating both sound and vibration
KR20010055234A (en) * 1999-12-10 2001-07-04 송재인 producing system of vibration and sound
KR20000063452A (en) * 2000-07-13 2000-11-06 김낙현 Yoke structure of signal converting apparatus

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