KR20010028407A - Manufacturing Method for Magnetic Circuit of Dynamic Speaker - Google Patents

Manufacturing Method for Magnetic Circuit of Dynamic Speaker Download PDF

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Publication number
KR20010028407A
KR20010028407A KR1019990040630A KR19990040630A KR20010028407A KR 20010028407 A KR20010028407 A KR 20010028407A KR 1019990040630 A KR1019990040630 A KR 1019990040630A KR 19990040630 A KR19990040630 A KR 19990040630A KR 20010028407 A KR20010028407 A KR 20010028407A
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KR
South Korea
Prior art keywords
magnetic circuit
manufacturing
magnet
yoke
center
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KR1019990040630A
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Korean (ko)
Inventor
이호재
Original Assignee
허훈
주식회사 에스더블유피신우전자
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Priority to KR1019990040630A priority Critical patent/KR20010028407A/en
Publication of KR20010028407A publication Critical patent/KR20010028407A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • H04R9/025Magnetic circuit
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10General applications
    • H04R2499/11Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10General applications
    • H04R2499/15Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

PURPOSE: A method for manufacturing a magnetic circuit portion of a dynamic speaker is provided to reduce the prices of manufacturing a speaker by improving the productivity of the speaker with simplifying the progress of manufacturing of a magnetic circuit portion. CONSTITUTION: A method for manufacturing a magnetic circuit portion of a dynamic speaker a few progresses. In the first progress an inserting central axis is formed on the center of an ejected formed frame(10). In the second progress a york(20) with a hole(20'), a magnet(30) and a top plate are layed on the inserting central axis in order. In the third progress the contacting faces of each part is sticked by a glue in order to prevent that the parts are out of order and the upper part of the inserting central axis is compressed by heat.

Description

다이내믹 스피커의 자기회로부 제작방법 {Manufacturing Method for Magnetic Circuit of Dynamic Speaker}Manufacturing Method of Magnetic Circuit of Dynamic Speaker {Manufacturing Method for Magnetic Circuit of Dynamic Speaker}

본 발명은 다이내믹 스피커의 자기회로부 제작방법에 관한 것이다.The present invention relates to a method for manufacturing a magnetic circuit portion of a dynamic speaker.

일반적으로 무선 휴대전화기 또는 노트북 PC 등과 같은 전자응용기기 내부에는 다이나믹형 스피커를 내장시켜 멜로디, 음성 등이 출력되게 하고 있다. 이러한 스피커는 도 3에 도시한 바와 같이, 프레임(10)내 중앙부에 요크(20), 원형의 마그네트(30), 원형의 톱 플레이트(40)를 차례로 올려놓고 이들 각 면을 접착제로 접착한 다음 보이스 코일(50)이 하방에 권취된 진동판(60)을 설치하는 구성으로 이루어져 보이스 코일(50)에 흐르는 전류의 영향을 받아 생기는 자계와 상기 마그네트 (30)사이의 상호작용에 의해 진동판(60)이 진동을 하면서 소리를 발생하게 된다. 이와같은 구성의 자기회로부 즉, 요크(20), 마그네트(30), 톱 플레이트(40)는 이들 각각을 접착제로 접착하면서 프레임(10)의 중앙부에 설치하여야 하므로 특히, 마그네트(30)를 요크(20)의 중앙부에 정확하게 정위치 시키기가 매우 어려워 조립공정 시간이 많이들게되고, 이로인해 생산성이 저하되어 제조원가의 상승을 초래하는 문제점이 지적된다.In general, a dynamic speaker is embedded in an electronic application such as a wireless mobile phone or a notebook PC to output melody and voice. 3, the yoke 20, the circular magnet 30, and the circular top plate 40 are placed in the center in the center of the frame 10, and then the surfaces are bonded with adhesive. The diaphragm 60 is formed by the interaction between the magnetic field generated by the influence of the current flowing through the voice coil 50 and the magnet 30. This vibration generates sound. In particular, since the magnetic circuit portion, that is, the yoke 20, the magnet 30, and the top plate 40 of such a configuration should be installed at the center of the frame 10 while adhering each of them with an adhesive, in particular, the magnet 30 is yoke ( It is pointed out that it is very difficult to accurately position the center part of 20), resulting in a lot of assembly process time, which leads to a decrease in productivity and a rise in manufacturing cost.

이러한 종래 스피커가 가지는 문제점을 해결하기 위하여, 근래들어 자기회로부의 조립공정을 간단히 하는 방법이 소개되고 있다. 도 4의 a,b는 간단한 자기회로부 제작공정을 보인 것으로, 중앙에 구멍(20')이 뚫린 요크(20)와 중앙에 구멍 (30')이 뚫린 마그네트(30)와 중앙에 구멍(40')이 뚫린 톱 플레이트(40)와의 각각 면접부위를 접착제로 접착하여 상부금형(70)의 홈에 끼우고 요입부(80')를 갖는 하부금형(80)을 상기 상부금형(70)을 정합시킨 다음, 액상의 합성수지를 상기 금형에 주입시켜 합성수지가 상기 구멍(20'),(30'),(40')으로 입입되어 프레임(10)의 중앙에 끼움 중심축(10')이 형성되면서 요크(20), 마그네트(30), 톱 플레이트 (40)각각을 고정시키는 과정을 통해 자기회로부를 제작하고 있다. 이와같은 자기회로부의 제작공정은 우선, 상부금형(70)에 요크(20), 마그네트(30), 톱 플레이트 (40)각각을 접착제로 접착한 후 결합된 자기회로부를 상부금형(70)에 끼우게 하는 공정을 거치고 있으므로, 요크(20)의 중심부에 마그네트(30) 또는 마그네트(300의 중심부에 톱 플레이트(40)를 각각 정위치 시키면서 접착하는 공정이 까다로워 생산성이 저하되며, 상하부 금형이 서로 정합될 시 접착된 각 부품이 서로 어긋날 경우도 발생할 수 있어 품질의 저하를 가져오는 문제점이 있다.In order to solve the problem of the conventional speaker, a method of simplifying the assembly process of the magnetic circuit part has recently been introduced. 4A and 4B illustrate a simple magnetic circuit manufacturing process, in which a yoke 20 having a hole 20 'at the center and a magnet 30 having a hole 30' at the center and a hole 40 'at the center are shown. ) And each of the interview portions with the top plate 40, which is perforated, are glued into the groove of the upper mold 70, and the lower mold 80 having the recessed portion 80 'is aligned with the upper mold 70. Next, the liquid synthetic resin is injected into the mold so that the synthetic resin is introduced into the holes 20 ', 30', and 40 'to form a central axis 10' in the center of the frame 10 to form a yoke. 20, the magnet 30, and the top plate 40, respectively, through the process of fixing the magnetic circuit portion is manufactured. In the manufacturing process of such a magnetic circuit, first, each of the yoke 20, the magnet 30, and the top plate 40 is bonded to the upper mold 70 with an adhesive, and then the combined magnetic circuit part is inserted into the upper mold 70. Since it goes through the process of making it difficult, the process of gluing while placing the top plate 40 in the center of the magnet 30 or the magnet 300 in the center of the yoke 20 is difficult, the productivity is lowered, the upper and lower molds are matched with each other If there is a problem in that the bonded parts are shifted from each other may cause a problem of quality deterioration.

본 발명은 별도로 제작된 프레임에 간단한 방법으로 자기회로부를 구성하게 하여 생산성 향상에 따른 제조원가의 절감과 품질의 향상을 도모함을 목적으로 한다.The present invention aims to reduce the manufacturing cost and improve the quality by increasing the productivity by making the magnetic circuit unit in a simple method to the separately manufactured frame.

본 발명은 요크, 마그네트, 톱 플레이트 각각을 접착없이 프레임의 중앙부에 정위치 시킬 수 있도록 함을 기술적 과제로 삼는다.The present invention is to make the yoke, the magnet, the top plate, each of which can be positioned in the center of the frame without bonding as a technical problem.

상기한 과제를 달성하기 위한 본 발명은 사출성형된 프레임의 중앙에 끼움 중심축을 일체로 입설하고, 이 끼움 중심축에 구멍이 뚫린 요크, 마그네트, 톱 플레이트를 차례로 끼워 적층한 다음 상기 끼움 중심축의 상단을 압착하여 고정시키는 과정을 통해 자기회로부를 제작함을 특징으로 한다.The present invention for achieving the above object is integrally installed in the center of the injection-molded frame integrally, and laminated by inserting the yoke, the magnet, the top plate which is punched in the fitting center axis in turn and then the top of the fitting center axis It characterized in that the magnetic circuit portion is manufactured by the process of pressing and fixing the.

이와같이 제작되는 본 발명은 요크, 마그네트, 톱 플레이트를 누구나 쉽게 프레임의 중앙에 설치할 수 있어 제작공정이 매우 간단하고, 이에따라 생산성이 크게 향상되어 제조원가의 절감을 가져오며, 제작과정중 이들 부품이 서로 어긋나서 특성의 변화를 가져오는 문제점을 해소하게된다.According to the present invention, the yoke, the magnet and the top plate can be easily installed at the center of the frame by anyone, and thus the manufacturing process is very simple. Accordingly, the productivity is greatly improved, thereby reducing the manufacturing cost, and these parts are shifted from each other during the manufacturing process. The problem of bringing about changes in the characteristics of the book is solved.

도 1a는 본 발명에 따른 프레임의 단면도1a is a cross-sectional view of a frame according to the invention

도 1b는 본 발명의 프레임에 요크, 마그네트, 톱 플레이트를 끼운 상태의 단면도Figure 1b is a cross-sectional view of the yoke, magnet, top plate in the frame of the present invention

도 1c는 본 발명의 자기회로부 완성 단면도Figure 1c is a cross-sectional view of the magnetic circuit portion of the present invention

도 2는 본 발명을 적용한 스피커의 단면도2 is a cross-sectional view of a speaker to which the present invention is applied.

도 3은 종래 스피커의 단면도3 is a cross-sectional view of a conventional speaker

도 4a, 4b는 종래 다른 자기회로부의 제작 순서도Figure 4a, 4b is a manufacturing flowchart of another conventional magnetic circuit portion

< 도면의 주요부분에 대한 부호설명 ><Explanation of Signs of Major Parts of Drawings>

10 : 프레임 20', 30' 40' : 요크, 마그네트, 톱 플레이트 의 구멍10: Frame 20 ', 30' 40 ': Hole in yoke, magnet, top plate

20 : 요크 30 : 마그네트 40 : 톱 플레이트20: yoke 30: magnet 40: top plate

50 : 보이스 코일 60 : 진동판 70, 80 : 상,하부금형50: voice coil 60: diaphragm 70, 80: upper, lower mold

본 발명을 설명함에 있어 종래 부분과 동일한 부분은 동일부호를 사용한다.In the following description of the present invention, the same parts as those in the prior art have the same reference numerals.

우선, 프레임(10)의 중앙부에 끼움 중심축(10')을 일체로 사출 성형하여 입설하고, 구멍(20')이 뚫린 요크(20)와, 구멍(30')이 뚫린 마그네트(30)와, 구멍 (40')이 뚫린 톱 플레이트(50)각각을 상기 끼움 중심축(10')에 끼운다. 따라서, 프레임(10)의 중앙부에 요크(20)와, 마그네트(30) 및 톱 플레이트(40)가 정위치되게 되고, 이는 누구나 쉽게 끼울 수 있는 것이어서 조립공정이 매우 간단하다. 이와같은 상태에서 이들 각부품의 접촉면을 접착제로 접착 한 다음 끼움 중심축(10')의 상단을 압착하여 조립하는 과장을 거치게하면 간단히 자기회로부의 조립이 완성된다. 상기에서, 접착단계는 요크(20)이나 마그네트(30), 톱 플레이트(40)를 순서대로 끼울때 마다 이들 각각을 접착하여도 무방하며, 끼움 중심축(10')의 상단의 압착은 열에의해 눌러주면 된다.First, the central shaft 10 'fitted in the center portion of the frame 10 is integrally injection molded, and the yoke 20 drilled through the holes 20', the magnet 30 drilled through the holes 30 ', and , Each of the top plate 50 through which the hole 40 'is drilled is inserted into the fitting central axis 10'. Therefore, the yoke 20, the magnet 30 and the top plate 40 are positioned in the center of the frame 10, which can be easily fitted by anyone, so the assembly process is very simple. In this state, the contact surface of each of these parts is bonded with an adhesive, and then the assembly of the magnetic circuit part is completed simply by passing the exaggerated assembly by pressing the upper end of the fitting central axis 10 '. In the above, the bonding step may be bonded to each of the yoke 20, the magnet 30, the top plate 40 in each order, and the pressing of the upper end of the fitting central axis 10 'by heat Press it.

이와 같이하여 이루어지는 본 발명은 끼움 중심축(10')을 기준으로 하여 요크(20), 마그네트(30) 등을 손쉽게 끼울 수 있고, 접착제로 접착할 시 이들 부품이 서로 어긋나는 경우를 배제할 수 있다. 그러나, 종래 도 4a,b에 의한 방법은 어떤 고정체 없이 원형의 마그네트와 요크 그리고 마그네트와 톱 플레이트를 접착제로 접착 한 상태에서 액상의 합성수지제를 주입하는 것이므로 마그네트와 요크가 서로 어긋나거나 하는 경우에 있어서는 합성수지제의 주입이 제대로 이루어지지 않음은 물론 주입압력에 의해 접착부분이 어긋나는 경우도 발생되는 것이어서 품질을 크게 저하시키게 된다.The present invention made in this way can easily fit the yoke 20, the magnet 30, etc. on the basis of the fitting center axis (10 '), it is possible to exclude the case that these components are shifted from each other when bonded with an adhesive. . However, the conventional method according to FIGS. 4a and b is injecting a liquid synthetic resin in a state in which a circular magnet and a yoke and a magnet and a top plate are glued together without any fixture, so that the magnet and the yoke are shifted from each other. In the case that the injection of the synthetic resin is not made properly, the adhesive portion is also shifted due to the injection pressure is generated is greatly reduced the quality.

본 발명은 요크와 마그네트 및 톱 플레이트를 수월하게 끼움 중심축에 끼운 상태에서 이들 부품 상호간을 접착하는 것으로, 자기회로부의 구성을 위한 부품의 정위치를 보다 확실하게 위치시킬 수 있어 스피커의 특성변화에 따른 품질저하를 배제하고, 제작공정이 매우 간단하여 생산성 향상에 따른 원가절감을 가져오는 효과를 가진다.According to the present invention, the yoke, the magnet, and the top plate are easily fitted to each other in such a state that the components are bonded to each other in the center axis, so that the correct positions of the components for the construction of the magnetic circuit part can be more reliably placed. Excludes quality deterioration, the manufacturing process is very simple has the effect of reducing the cost of productivity.

Claims (1)

사출성형된 프레임(10)의 중앙에 끼움 중심축(10')을 일체로 입설하고, 이 끼움 중심축(10')에 구멍(20')이 뚫린 요크(20), 마그네트(30), 톱 플레이트(40)를 차례로 끼워 적층한 다음 상기 끼움 중심축(10')의 상단을 압착하여 고정시키는 과정을 통해 자기회로부를 제작함을 특징으로 하는 다이내믹 스피커의 자기회로부 제작방법.The yoke 20, the magnet 30, the saw having a central hole 10 'fitted in the center of the injection-molded frame 10 integrally, and the hole 20' is drilled in the central axis 10 '. Method of manufacturing a magnetic circuit portion of a dynamic speaker, characterized in that the magnetic circuit portion is manufactured by pressing and stacking the plate 40 in sequence and then pressing and fixing the upper end of the fitting central axis (10 ').
KR1019990040630A 1999-09-21 1999-09-21 Manufacturing Method for Magnetic Circuit of Dynamic Speaker KR20010028407A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101503869B1 (en) * 2013-01-25 2015-03-18 이남규 Magnetic circuit for speaker and manufacturing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101503869B1 (en) * 2013-01-25 2015-03-18 이남규 Magnetic circuit for speaker and manufacturing method thereof

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