JP2003189399A - Manufacturing method for magnetic circuit for loudspeaker and magnetic circuit for loudspeaker obtained by employing the method - Google Patents
Manufacturing method for magnetic circuit for loudspeaker and magnetic circuit for loudspeaker obtained by employing the methodInfo
- Publication number
- JP2003189399A JP2003189399A JP2001382654A JP2001382654A JP2003189399A JP 2003189399 A JP2003189399 A JP 2003189399A JP 2001382654 A JP2001382654 A JP 2001382654A JP 2001382654 A JP2001382654 A JP 2001382654A JP 2003189399 A JP2003189399 A JP 2003189399A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic circuit
- loudspeaker
- manufacturing
- adhesive
- speaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は各種音響機器に用い
られるスピーカのスピーカ用磁気回路の製造方法および
これを用いたスピーカ用磁気回路に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a speaker magnetic circuit for a speaker used in various audio equipment and a speaker magnetic circuit using the same.
【０００２】[0002]
【従来の技術】従来のスピーカ用磁気回路を図２（ａ）
の内磁形磁気回路を用いたマイクロスピーカの半断面図
と図２（ｂ）の外磁形磁気回路を用いたスピーカの断面
図により説明する。2. Description of the Related Art A conventional magnetic circuit for a speaker is shown in FIG.
A half cross-sectional view of a microspeaker using the inner magnetic type magnetic circuit and a cross-sectional view of the speaker using the outer magnetic type magnetic circuit of FIG.
【０００３】図２（ａ）は内磁形磁気回路を用いたスピ
ーカであり、１はヨーク２とマグネット３とプレート４
から構成された磁気回路である。６はヨーク２に結合さ
れたフレームであり、このフレーム６にはボイスコイル
７を固着した振動板８の外周が結合されている。FIG. 2A shows a speaker using an inner magnet type magnetic circuit, and 1 is a yoke 2, a magnet 3 and a plate 4.
It is a magnetic circuit composed of. Reference numeral 6 denotes a frame coupled to the yoke 2, and the outer periphery of a diaphragm 8 having a voice coil 7 fixed thereto is coupled to the frame 6.
【０００４】なお、前記ボイスコイル７は前記磁気回路
１の磁気ギャップ１ａ内に配置されるように前記振動板
８に固着されている。The voice coil 7 is fixed to the diaphragm 8 so as to be arranged in the magnetic gap 1a of the magnetic circuit 1.
【０００５】図２（ｂ）は外磁形磁気回路を用いたスピ
ーカであり、１１は下部のプレート１２とマグネット１
３と上部のプレート１４から構成された磁気回路であ
る。１６は上部のプレート１４に結合されたフレームで
あり、このフレーム１６にはボイスコイル１７を固着し
た振動板１８の外周が結合されている。FIG. 2B shows a speaker using an external magnet type magnetic circuit, and 11 is a lower plate 12 and a magnet 1.
3 is a magnetic circuit composed of 3 and an upper plate 14. Reference numeral 16 denotes a frame connected to the upper plate 14, and the outer periphery of a diaphragm 18 to which a voice coil 17 is fixed is connected to the frame 16.
【０００６】なお、前記ボイスコイル１７は前記磁気回
路１１の磁気ギャップ１１ａ内に配置されるように前記
振動板１８に固着されている。The voice coil 17 is fixed to the diaphragm 18 so as to be arranged in the magnetic gap 11a of the magnetic circuit 11.
【０００７】次に前述の磁気回路１の作製方法について
説明すると、磁気回路１は亜鉛メッキを施したヨーク２
とマグネット３と亜鉛メッキを施したプレート４の接合
面に二液反応形のエポキシ樹脂系接着剤や二液反応形の
アクリル樹脂系接着剤を空気圧を利用したディスペンサ
ーにより接合面（Ａ）に塗布し、二液の一方の硬化剤で
他方の主剤を反応硬化させ、ヨーク２とマグネット３間
およびマグネット３とプレート４間を接合して形成する
ものであった。Next, a method of manufacturing the above-described magnetic circuit 1 will be described. The magnetic circuit 1 is a zinc plated yoke 2
Apply two-component reactive epoxy resin adhesive or two-component reactive acrylic resin adhesive to the joint surface of the magnet 3 and the galvanized plate 4 on the joint surface (A) with a dispenser using air pressure. Then, the curing agent of one of the two liquids is used to reactively cure the other main agent, and the yoke 2 and the magnet 3 and the magnet 3 and the plate 4 are joined to each other.
【０００８】図２（ｂ）の外磁形磁気回路を用いたスピ
ーカの磁気回路１１の下部のプレート１２とマグネット
１３間とマグネット１３上部のプレート１４間の接合も
同様の方法で行う。Joining between the lower plate 12 and the magnet 13 and between the upper plate 14 of the magnet 13 of the magnetic circuit 11 of the speaker using the external magnetic type magnetic circuit of FIG. 2B is also performed in the same manner.
【０００９】[0009]
【発明が解決しようとする課題】近年、携帯電話等に使
用されるスピーカの一種であるマイクロスピーカやレシ
ーバは益々小形化し、よって前述の磁気回路を形成する
ためのマグネット３，１３とヨーク２やプレート４，１
２，１４との接合面積が狭くなり、二液性の接着剤Ａを
ディスペンサーで塗布する方法では二液の混合が難しく
作業に手間がかかる等によって接合不良が発生したり、
微小塗布のコントロールが困難で接着剤Ａが磁気ギャッ
プ１ａ，１１ａ内にはみ出し（Ｃ部）、ボイスコイル
７，１７の動作不良を発生させるギャップ不良の要因と
なったりしていた。In recent years, micro-speakers and receivers, which are a type of speaker used in mobile phones and the like, have become smaller and smaller, so that the magnets 3 and 13 and the yoke 2 for forming the above-mentioned magnetic circuit have been reduced. Plate 4, 1
The bonding area between the two and 14 becomes narrow, and in the method of applying the two-liquid adhesive A by the dispenser, it is difficult to mix the two liquids, and the work is troublesome.
Since it is difficult to control the minute coating, the adhesive A protrudes into the magnetic gaps 1a and 11a (C portion), which causes a gap defect that causes malfunction of the voice coils 7 and 17.
【００１０】本発明は上記課題を解決して品質の安定し
た優れたスピーカ用磁気回路の製造方法およびこれを用
いたスピーカ用磁気回路の提供を目的とするものであ
る。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to provide a method of manufacturing a magnetic circuit for a speaker having excellent quality and a magnetic circuit for a speaker using the method.
【００１１】[0011]
【課題を解決するための手段】上記課題を解決するため
に本発明の請求項１に記載のものは、挟着接合面のマグ
ネット側、磁性金属体側の少なくともいずれかの面に嫌
気性接着剤を印刷により塗布して接合したものであり、
印刷によって嫌気性接着剤を所定の接合面に塗布するこ
とで塗布個所、塗布厚みを制御して接着剤のはみ出しを
防止し、また、接着剤の硬化をマグネットとプレートや
ヨークと挟持した時に硬化を進行させることで作業性に
影響を与えることなく確実に行うことができるものであ
る。In order to solve the above-mentioned problems, according to a first aspect of the present invention, an anaerobic adhesive is provided on at least one of a magnet side and a magnetic metal body side of a sandwich joint surface. Is applied by printing and joined,
By applying an anaerobic adhesive to the specified joint surface by printing, the application location and the application thickness are controlled to prevent the adhesive from protruding, and the adhesive is cured when it is sandwiched between the magnet and the plate or yoke. By advancing the process, it can be surely performed without affecting the workability.
【００１２】本発明の請求項２に記載のものは、請求項
１に記載の嫌気性接着剤として一液嫌気性アクリル系接
着剤を用いスクリーン印刷にて接合面に塗布したもので
あり、スクリーン印刷によって使用するメッシュの選択
によって接着剤の印刷個所と厚みを制御するとともに、
一液嫌気性アクリル系接着剤を用いることで、二液性の
ように混合する必要がないためより狭小な接着個所への
塗布を可能としてより小型の磁気回路の組立に寄与でき
るものである。According to a second aspect of the present invention, a one-component anaerobic acrylic adhesive is used as the anaerobic adhesive according to the first aspect and is applied to the joint surface by screen printing. By controlling the printing point and thickness of the adhesive by selecting the mesh used by printing,
By using a one-part anaerobic acrylic adhesive, it is not necessary to mix it like a two-part type, and it is possible to apply it to a narrower adhesive spot, which can contribute to the assembly of a smaller magnetic circuit.
【００１３】本発明の請求項３に記載のものは、請求項
２に記載のスクリーン印刷に用いられるメッシュが少な
くとも一液嫌気性アクリル系接着剤に対して硬化反応を
生じさせ難い材質で形成したものであり、一液嫌気性ア
クリル系接着剤がメッシュによって硬化することを防止
し、連続して長時間の接着剤の塗布作業を含む磁気回路
の組立作業の円滑化を図ることができるものである。According to a third aspect of the present invention, the mesh used for the screen printing according to the second aspect is made of a material which hardly causes a curing reaction to at least one liquid anaerobic acrylic adhesive. The one-component anaerobic acrylic adhesive can be prevented from being cured by the mesh, and the assembling work of the magnetic circuit including the adhesive applying work for a long time can be facilitated. is there.
【００１４】本発明の請求項４に記載のものは、請求項
３に記載のスクリーン印刷に用いられるメッシュの材質
を、化学繊維であるポリエステル系繊維、ケプラー繊
維、ポリオレフィン系繊維または金属繊維であるステン
レス繊維のいずれかとしたものであり、請求項３の構成
をより具体的にしたもので、請求項３と同様の効果を有
するものである。According to a fourth aspect of the present invention, the material of the mesh used in the screen printing according to the third aspect is a chemical fiber such as polyester fiber, Kepler fiber, polyolefin fiber or metal fiber. It is made of any one of stainless steel fibers, is a more specific configuration of claim 3, and has the same effect as that of claim 3.
【００１５】本発明の請求項５に記載のものは、請求項
１から請求項４に記載のスピーカ用磁気回路の製造方法
のいずれかによってスピーカ用磁気回路を構成したもの
であり、小形の磁気回路であっても接着強度が安定した
磁気ギャップへの接着剤のはみ出しのない品質の安定し
たスピーカ用磁気回路の提供を可能とするものである。According to a fifth aspect of the present invention, a speaker magnetic circuit is constructed by any one of the methods for manufacturing a speaker magnetic circuit according to any one of the first to fourth aspects, and a small magnetic Even in the case of a circuit, it is possible to provide a magnetic circuit for a speaker with a stable quality in which the adhesive does not overflow into the magnetic gap with a stable adhesive strength.
【００１６】[0016]
【発明の実施の形態】以下本発明の実施の形態を図１に
より説明する。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIG.
【００１７】（実施の形態１）本発明のスピーカ用磁気
回路を内磁形磁気回路を用いたマイクロスピーカの半断
面図により説明する。なお、説明にあたっては従来技術
の図２（ａ）と同一部分には同一番号を付して説明を省
略して説明する。(Embodiment 1) A magnetic circuit for a speaker according to the present invention will be described with reference to a half sectional view of a micro speaker using an internal magnetic circuit. In the description, the same parts as those in FIG. 2A of the prior art will be denoted by the same reference numerals and will not be described.
【００１８】同図により相違点のみ説明すると、Ｂはヨ
ーク２とマグネット３間およびマグネット３とプレート
４間に塗布された一液嫌気性アクリル系接着剤であり、
本実施の形態においてはロックタイト社製Ｌ０３２６を
用いた。Explaining only the difference with reference to the figure, B is a one-liquid anaerobic acrylic adhesive applied between the yoke 2 and the magnet 3 and between the magnet 3 and the plate 4,
In this embodiment, L0326 manufactured by Loctite Corporation was used.
【００１９】塗布にあたってはスクリーン印刷機を用い
メッシュは２５０メッシュのステンレス製メッシュを用
い、直径５ｍｍの接合物で接着剤をスクリーン印刷した
ところ、塗布厚は１５〜２０ミクロンで安定してはみ出
しもなかった。なお、塗布厚は適宜のメッシュを選択す
ることで行えるが、メッシュの網目は２００〜３００メ
ッシュが作業性の点から最適であることが確認された。Upon coating, a screen printing machine was used and a 250 mesh mesh made of stainless steel was used. The adhesive was screen-printed with a joint having a diameter of 5 mm. The coating thickness was 15 to 20 microns and no protrusion was found. It was The coating thickness can be adjusted by selecting an appropriate mesh, but it has been confirmed that the mesh size of the mesh is preferably 200 to 300 mesh from the viewpoint of workability.
【００２０】なお、メッシュ材として銅系や鉄系を用い
た場合は一液嫌気性アクリル系接着剤の硬化促進材とな
り、メッシュ上で硬化するため目詰まりが生じるので好
ましくない。When a copper-based or iron-based material is used as the mesh material, it serves as a curing accelerator for the one-liquid anaerobic acrylic adhesive, and it is not preferable because it is cured on the mesh and clogging occurs.
【００２１】なお、一液嫌気性アクリル系接着剤の硬化
を促進しないメッシュ材としては前記ステンレス製メッ
シュの他、化学繊維であるポリエステル系繊維、ケプラ
ー繊維、ポリオレフィン系繊維を用いても良い。As the mesh material that does not accelerate the curing of the one-pack anaerobic acrylic adhesive, polyester fibers, Kepler fibers, or polyolefin fibers, which are chemical fibers, may be used in addition to the stainless steel mesh.
【００２２】また、上記実施の形態においては内磁形の
磁気回路の接合について説明したが、従来技術の図２
（ｂ）で説明した外磁形の磁気回路にも適用できるもの
であり、マグネット１３の上下のいずれかのプレート１
４，１２との接続面に上述した一液嫌気性接着剤Ｂをス
クリーン印刷により塗布し、接合することで、塗布量
（塗布厚、塗布個所）を制御して狭小範囲の塗布に適
し、小形スピーカの磁気回路に適した製造方法と品質の
安定した磁気回路の提供ができるものである。In the above embodiment, the joining of the inner magnet type magnetic circuit has been described.
It is also applicable to the external magnet type magnetic circuit described in (b), and either the plate 1 above or below the magnet 13
The above-mentioned one-component anaerobic adhesive B is applied to the connection surface with 4, 12 by screen printing and joined to control the application amount (application thickness, application location), suitable for application in a narrow range, small size A manufacturing method suitable for a magnetic circuit of a speaker and a magnetic circuit of stable quality can be provided.
【００２３】また、上述の製造方法は従来のスピーカの
組立工法の自由度を高める効果も有するものである。The above-mentioned manufacturing method also has the effect of increasing the degree of freedom of the conventional speaker assembly method.
【００２４】即ち、二液性接着剤を使用した磁気回路に
おいては、接着剤塗布と同時に接着剤の硬化が進行する
ため、磁気回路の組立を直ちに行う必要があり、スピー
カの製造の機械化はこの磁気回路の組立がネックとなっ
ていたが、一液嫌気性接着剤の使用により塗布後の本格
的な硬化はマグネット３とヨーク２、プレート４との組
み合わせ後に始まることになる。また、印刷による接着
剤の塗布で小形の対象物（例えばマグネット３，１３や
プレート４，１４等）を多数個ならべて同時に多数接着
剤塗布することにより、別工程での組み立てが可能とな
り、生産性の向上が図れるものである。That is, in a magnetic circuit using a two-component adhesive, since the curing of the adhesive proceeds at the same time as the application of the adhesive, it is necessary to immediately assemble the magnetic circuit. Although the assembly of the magnetic circuit has been a bottleneck, the full-scale curing after application is started after the combination of the magnet 3, the yoke 2 and the plate 4 by using the one-liquid anaerobic adhesive. In addition, by arranging a large number of small objects (for example, the magnets 3, 13 and the plates 4, 14) by applying the adhesive by printing, and applying a large number of the adhesives at the same time, it is possible to assemble in a separate process. It is possible to improve the sex.
【００２５】[0025]
【発明の効果】以上のように本発明は、接着剤の塗布精
度の向上を図り、品質の安定したスピーカ用磁気回路の
製造方法およびこれを用いたスピーカ用磁気回路の提供
を可能とするものである。INDUSTRIAL APPLICABILITY As described above, according to the present invention, it is possible to provide a method of manufacturing a magnetic circuit for a speaker with stable quality and a magnetic circuit for a speaker using the same by improving the accuracy of applying an adhesive. Is.
【図１】本発明の一実施形態である内磁形スピーカ用磁
気回路を用いたスピーカの半断面図FIG. 1 is a half sectional view of a speaker using a magnetic circuit for an inner magnet type speaker according to an embodiment of the present invention.
【図２】（ａ）従来の内磁形スピーカ用磁気回路を用い
たスピーカの半断面図
（ｂ）従来の外磁形スピーカ用磁気回路を用いたスピー
カの断面図2A is a half sectional view of a speaker using a conventional magnetic circuit for an inner magnet type speaker; FIG. 2B is a sectional view of a speaker using a conventional magnetic circuit for an outer magnet type speaker.
１ 磁気回路 ２ ヨーク ３ マグネット ４ プレート Ｂ 一液嫌気性アクリル系接着剤 1 magnetic circuit 2 York 3 magnets 4 plates B One-component anaerobic acrylic adhesive
Claims (5)
トを挟着接合してなる磁性金属体よりなるスピーカ用磁
気回路の製造方法であって、この挟着接合面のマグネッ
ト側、磁性金属体側の少なくともいずれかの面に嫌気性
接着剤を印刷により塗布して接合したスピーカ用磁気回
路の製造方法。1. A method of manufacturing a magnetic circuit for a speaker, comprising at least a magnet and a magnetic metal body obtained by sandwiching and joining the magnet, comprising at least one of a magnet side and a magnetic metal body side of the sandwiching and joining surface. A method for manufacturing a magnetic circuit for a speaker, in which an anaerobic adhesive is applied by printing on the surface of the sheet and joined.
系接着剤を用い、スクリーン印刷にて接合面に塗布した
請求項１に記載のスピーカ用磁気回路の製造方法。2. The method for manufacturing a magnetic circuit for a speaker according to claim 1, wherein a one-component anaerobic acrylic adhesive is used as the anaerobic adhesive and is applied to the joint surface by screen printing.
少なくとも一液嫌気性アクリル系接着剤に対して硬化反
応を生じさせ難い材質で形成されている請求項２に記載
のスピーカ用磁気回路の製造方法。3. The method of manufacturing a magnetic circuit for a speaker according to claim 2, wherein the mesh used for screen printing is made of a material that hardly causes a curing reaction with respect to at least one liquid anaerobic acrylic adhesive.
ステル系繊維、ケプラー繊維、ポリオレフィン系繊維ま
たは金属繊維であるステンレス繊維のいずれかとした請
求項３に記載のスピーカ用磁気回路の製造方法。4. The method of manufacturing a magnetic circuit for a speaker according to claim 3, wherein the material of the mesh is any one of polyester fiber, Kepler fiber, polyolefin fiber or stainless fiber which is metal fiber which is a chemical fiber.
れかのスピーカ用磁気回路の製造方法を用いて形成した
スピーカ用磁気回路。5. A magnetic circuit for a speaker formed by using the method for manufacturing a magnetic circuit for a speaker according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001382654A JP2003189399A (en) | 2001-12-17 | 2001-12-17 | Manufacturing method for magnetic circuit for loudspeaker and magnetic circuit for loudspeaker obtained by employing the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001382654A JP2003189399A (en) | 2001-12-17 | 2001-12-17 | Manufacturing method for magnetic circuit for loudspeaker and magnetic circuit for loudspeaker obtained by employing the method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003189399A true JP2003189399A (en) | 2003-07-04 |
Family
ID=27592922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001382654A Withdrawn JP2003189399A (en) | 2001-12-17 | 2001-12-17 | Manufacturing method for magnetic circuit for loudspeaker and magnetic circuit for loudspeaker obtained by employing the method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003189399A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9086099B2 (en) | 2009-08-21 | 2015-07-21 | Das Werk Pty Ltd | Rotor coupling |
-
2001
- 2001-12-17 JP JP2001382654A patent/JP2003189399A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9086099B2 (en) | 2009-08-21 | 2015-07-21 | Das Werk Pty Ltd | Rotor coupling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7386145B2 (en) | Loudspeaker system, method and apparatus of manufacturing the same | |
| US6341167B1 (en) | Speaker | |
| CN108696808B (en) | Loudspeaker and loudspeaker assembling method | |
| US20140087131A1 (en) | Compound membrane and acoustic device using same | |
| JP3940151B2 (en) | Speaker, speaker diaphragm, and method for manufacturing speaker diaphragm | |
| JP2003189399A (en) | Manufacturing method for magnetic circuit for loudspeaker and magnetic circuit for loudspeaker obtained by employing the method | |
| US20140083795A1 (en) | Compound membrane and acoustic device using same | |
| JP4577098B2 (en) | Electroacoustic transducer | |
| KR101673296B1 (en) | Pattern diaphram and method of making the same | |
| CN207926906U (en) | A kind of loud speaker | |
| CN102740198B (en) | Speaker and mobile phone comprising speaker | |
| US20020043424A1 (en) | Damper for speaker and method of producing the same | |
| JP2005123851A (en) | Speaker, speaker module and electronic apparatus using the same | |
| CN206365023U (en) | The speaker diaphragm and loudspeaker of cone basin formula | |
| JP2000261887A (en) | Electroacoustic transducer for portable information device | |
| JP2001339790A (en) | Loudspeaker | |
| JP2006109123A (en) | Speaker and manufacturing method thereof | |
| JP2003339098A (en) | Speaker | |
| JPH09215091A (en) | Electromagnetic sounding body | |
| JP3033311B2 (en) | Speaker | |
| JPH08140188A (en) | Electroacoustic transducer | |
| JP2021164045A (en) | Speaker diaphragm, speaker, speaker diaphragm manufacturing method, electronic device, and mobile device | |
| JP2005039402A (en) | Speaker | |
| JP2001268689A (en) | Electroacoustic transducer | |
| JPS6130200A (en) | Assembling method of speaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040728 |
|
| RD01 | Notification of change of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7421 Effective date: 20050704 |
|
| A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20061101 |