JP2003032788A - Dual structure damper and speaker - Google Patents
Dual structure damper and speakerInfo
- Publication number
- JP2003032788A JP2003032788A JP2001213120A JP2001213120A JP2003032788A JP 2003032788 A JP2003032788 A JP 2003032788A JP 2001213120 A JP2001213120 A JP 2001213120A JP 2001213120 A JP2001213120 A JP 2001213120A JP 2003032788 A JP2003032788 A JP 2003032788A
- Authority
- JP
- Japan
- Prior art keywords
- damper
- damper member
- voice coil
- speaker
- dual structure
- 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.)
- Granted
Links
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
(57)【要約】
【課題】 スペーサが不要で、組み付け工数が低減し、
コストも低減できる二重構造ダンパーおよびスピーカを
提供することにある。
【解決手段】 一方の端面側は開放面、他方の端面側に
は中心部にボイスコイルが取り付けられる穴１１３が形
成され、ボイスコイルの移動方向に可撓可能なダンパー
部１１５が形成された筒状の第１のダンパー部材１１１
と、第１のダンパー部材１１１と同一形状の第２のダン
パー部材１２１とでなり、第１のダンパー部材１１１の
開放面と、第２のダンパー部材１２１の開放面とが対向
するように第１のダンパー部材１１１および第２のダン
パー部材１２１を一体化した二重構造ダンパーを用い
る。
(57) [Summary] [Problem] There is no need for a spacer, reducing the number of assembly steps,
An object of the present invention is to provide a dual structure damper and a speaker that can reduce the cost. SOLUTION: One end face side is an open face, and the other end face side is formed with a hole 113 in which a voice coil is attached at the center, and a damper part 115 that is flexible in the moving direction of the voice coil is formed. Shaped first damper member 111
And a second damper member 121 having the same shape as that of the first damper member 111, and the first damper member 111 and the second damper member 121 have an open surface facing each other. A double structure damper in which the damper member 111 and the second damper member 121 are integrated is used.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、スピーカのボイス
コイルの軸方向に離間した２箇所に結合され、前記ボイ
スコイルを磁気回路の磁気ギャップ間に位置するように
支持する二重構造ダンパーを用いたスピーカに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dual structure damper which is coupled to two positions spaced apart in the axial direction of a voice coil of a speaker and supports the voice coil so as to be positioned between magnetic gaps of a magnetic circuit. About the speaker that was.
【０００２】[0002]
【従来の技術】近年、小口径で大振幅に対応するスピー
カの需要が増加してきている。小口径スピーカの低周波
数領域での振動板の振幅量は、大口径スピーカに比べ大
きくなり、ボイスコイルのローリング等を防止するため
２つのダンパーからなる二重構造ダンパーを用いる場合
がある。2. Description of the Related Art In recent years, there has been an increasing demand for a speaker having a small diameter and a large amplitude. The amount of vibration of the diaphragm in the low frequency region of the small-diameter speaker is larger than that of the large-diameter speaker, and a dual structure damper composed of two dampers may be used in order to prevent rolling of the voice coil.
【０００３】ここで、二重構造ダンパーを用いたスピー
カの断面図である図４を用いて説明する。図において、
磁気回路１は、中央部にセンタポール部３が形成された
ヨーク５と、ヨーク５上に積層され、中央部にセンタポ
ール部３が挿通する穴７が設けられた円環状のマグネッ
ト９と、マグネット９上に積層され、中央部にセンタポ
ール部３が挿通する穴１１が設けられたトッププレート
１３とからなり、トッププレート１３の穴７の内壁面
と、センタポール部３の周面との間に磁気ギャップ１５
が形成されている。Here, a description will be given with reference to FIG. 4 which is a sectional view of a speaker using a dual structure damper. In the figure,
The magnetic circuit 1 includes a yoke 5 having a center pole portion 3 formed in a central portion thereof, and an annular magnet 9 laminated on the yoke 5 and having a hole 7 through which the center pole portion 3 is inserted. It is composed of a top plate 13 laminated on the magnet 9 and provided with a hole 11 through which the center pole part 3 is inserted in the central part. The inner wall surface of the hole 7 of the top plate 13 and the peripheral surface of the center pole part 3 are formed. Magnetic gap 15 between
Are formed.
【０００４】この磁気回路１は、円錐台状のフレーム１
７の下面に設けられる。フレーム１７の上部には、エッ
ジ部材１９を介して振動板２１の外周部が取り付けら
れ、振動板２１の内周部には、ボイスコイル２３が巻回
されたボビン２５が取り付けられている。The magnetic circuit 1 is a frame 1 having a truncated cone shape.
It is provided on the lower surface of 7. An outer peripheral portion of a diaphragm 21 is attached to an upper portion of the frame 17 via an edge member 19, and a bobbin 25 around which a voice coil 23 is wound is attached to an inner peripheral portion of the diaphragm 21.
【０００５】ボビン２５は、フレーム１７に設けられた
二重構造ダンパー２７によってそのボイスコイル２３が
磁気回路１の磁気ギャップ１５間に位置するように支持
されている。The bobbin 25 is supported by a double structure damper 27 provided on the frame 17 so that its voice coil 23 is located between the magnetic gaps 15 of the magnetic circuit 1.
【０００６】本従来例の二重構造ダンパー２７は、円環
状のスペーサ２９を介して積層された２枚の円環状のダ
ンパー３１で構成されている。円環状のダンパー３１に
は、同心円状の複数の屈曲部（コルゲーション）が形成
され、内周部がボビン２５に取り付けられている。The double-structured damper 27 of the conventional example is composed of two annular dampers 31 which are laminated via an annular spacer 29. A plurality of concentric bent portions (corrugations) are formed in the annular damper 31, and the inner peripheral portion is attached to the bobbin 25.
【０００７】さらに、振動板２１には、ボビン２５内に
塵埃が侵入するのを防止するキャップ３３が設けられて
いる。そして、ボイスコイル２３に音声電流を流すと、
ボイスコイル２３が駆動され、ボビン２５を介して振動
板２１が振動する。Further, the diaphragm 21 is provided with a cap 33 for preventing dust from entering the bobbin 25. Then, when a voice current is applied to the voice coil 23,
The voice coil 23 is driven, and the diaphragm 21 vibrates via the bobbin 25.
【０００８】[0008]
【発明が解決しようとする課題】しかし、上記構成の二
重構造ダンパー２７およびこの二重構造ダンパーを用い
たスピーカには、以下のような問題点がある。
（１）２枚のダンパー３１の間隔を確保するためにスペ
ーサ２９が必要である。
（２）２枚のダンパー３１の中心出しが難しい。However, the dual structure damper 27 having the above structure and the speaker using the dual structure damper have the following problems. (1) The spacer 29 is necessary to secure the space between the two dampers 31. (2) It is difficult to center the two dampers 31.
【０００９】本発明は、上記問題点に鑑みてなされたも
ので、その第１の課題は、スペーサが不要で、組み付け
工数が低減し、コストも低減できる二重構造ダンパーお
よびスピーカを提供することにある。The present invention has been made in view of the above problems, and a first object thereof is to provide a dual structure damper and a speaker which do not require a spacer, reduce the number of assembling steps, and reduce the cost. It is in.
【００１０】第２の課題は、２枚のダンパーの中心出し
が容易な二重構造ダンパーおよびスピーカを提供するこ
とにある。A second object is to provide a dual structure damper and speaker in which the centering of two dampers is easy.
【００１１】[0011]
【課題を解決するための手段】上記課題を解決する請求
項１記載の発明は、スピーカのボイスコイルの軸方向に
離間した２箇所に結合され、前記ボイスコイルを磁気回
路の磁気ギャップ間に位置するように支持する二重構造
ダンパーにおいて、一方の端面側は開放面、他方の端面
側には中心部に前記ボイスコイルが取り付けられる穴が
形成され、前記ボイスコイルの移動方向に可撓可能なダ
ンパー部が形成された筒状の第１のダンパー部材と、該
第１のダンパー部材と同一形状の第２のダンパー部材と
でなり、前記第１のダンパー部材の開放面と、前記第２
のダンパー部材の開放面とが対向するように第１および
第２のダンパー部材を一体化したことを特徴とする二重
構造ダンパーである。According to a first aspect of the present invention for solving the above-mentioned problems, a voice coil of a speaker is connected to two axially spaced locations, and the voice coil is positioned between magnetic gaps of a magnetic circuit. In the dual structure damper that is supported as described above, one end surface side is an open surface, and the other end surface side is formed with a hole at the center to which the voice coil is attached, and is flexible in the moving direction of the voice coil. It is composed of a tubular first damper member in which a damper portion is formed, and a second damper member having the same shape as the first damper member, the open surface of the first damper member, and the second damper member.
The dual structure damper is characterized in that the first and second damper members are integrated so as to face the open surface of the damper member.
【００１２】一方の端面側は開放面、他方の端面側には
中心部に前記ボイスコイルが取り付けられる穴が形成さ
れ、前記ボイスコイルの移動方向に可撓可能なダンパー
部が形成された筒状の第１のダンパー部材と、該第１の
ダンパー部材と同一形状の第２のダンパー部材とでな
り、前記第１のダンパー部材の開放面と、前記第２のダ
ンパー部材の開放面とが対向するように第１および第２
のダンパー部材を一体化したことにより、第１のダンパ
ー部材の筒面と、第２のダンパー部材の筒面とが２つの
ダンパー部の間隔を確保するスペーサの役割を果たすの
で、スペーサが不要となり、組み付け工数が低減し、コ
ストも低減できる。One end face side is an open face, and the other end face side is formed with a hole at the center for mounting the voice coil, and a damper part which is flexible in the moving direction of the voice coil is formed into a cylindrical shape. Of the first damper member and a second damper member having the same shape as the first damper member, and the open surface of the first damper member and the open surface of the second damper member face each other. To do first and second
By integrating the damper members of 1), the cylindrical surface of the first damper member and the cylindrical surface of the second damper member play a role of a spacer for ensuring a distance between the two damper parts, so that the spacer is not necessary. The number of assembling steps can be reduced and the cost can be reduced.
【００１３】請求項２記載の発明は、前記第１および第
２のダンパー部材の筒面の開放面側縁部にそって、互い
に嵌合可能な軸方向の凹凸部を形成したことを特徴とす
る請求項１記載の二重構造ダンパーである。The invention according to claim 2 is characterized in that axially concavo-convex portions which can be fitted to each other are formed along the edges of the open surfaces of the cylindrical surfaces of the first and second damper members. The dual structure damper according to claim 1.
【００１４】前記第１および第２のダンパー部材の筒面
の開放面側縁部にそって、互いに嵌合可能な軸方向の凹
凸部を形成したことにより、第１および第２のダンパー
部材のダンパー部の穴の位置決めがなされ、中心出しが
容易となる。Along the edges of the first and second damper members on the open side of the cylindrical surface, axially concavo-convex portions that can be fitted to each other are formed, so that the first and second damper members have the same shape. Positioning of the holes in the damper part facilitates centering.
【００１５】請求項３記載の発明は、前記第１および第
２のダンパー部材は、樹脂材料を射出成形してなること
を特徴とする請求項１または２記載の二重構造ダンパー
である。The invention according to claim 3 is the dual structure damper according to claim 1 or 2, characterized in that the first and second damper members are formed by injection molding a resin material.
【００１６】前記第１および第２のダンパー部材は、樹
脂材料を射出成形してなることにより、樹脂材の選定に
より、所望のｆｏ（最低共振周波数）を得ることができ
る。請求項４記載の発明は、請求項１乃至３のいずれか
に記載の二重構造ダンパーを用いたことを特徴とするス
ピーカである。Since the first and second damper members are formed by injection molding a resin material, a desired fo (minimum resonance frequency) can be obtained by selecting the resin material. An invention according to claim 4 is a speaker using the dual structure damper according to any one of claims 1 to 3.
【００１７】請求項１乃至３のいずれかに記載の二重構
造ダンパーを用いたことにより、スペーサが不要で、組
み付け工数が低減し、コストも低減できる。また、中心
出しも容易となる。By using the double-structured damper according to any one of claims 1 to 3, a spacer is unnecessary, the number of assembling steps can be reduced, and the cost can be reduced. Further, centering becomes easy.
【００１８】さらに、所望のｆｏ（最低共振周波数）を
得ることができる。Further, a desired fo (minimum resonance frequency) can be obtained.
【００１９】[0019]
【発明の実施の形態】次に図面を用いて本発明の実施の
形態例のスピーカを説明する。図１は本実施の形態例の
二重構造ダンパーの分解斜視図、図２は本発明の実施の
形態例のスピーカの断面図、図３は図１のダンパー部材
のダンパー部の平面図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a speaker according to an embodiment of the present invention will be described with reference to the drawings. 1 is an exploded perspective view of a dual structure damper according to the present embodiment, FIG. 2 is a cross-sectional view of a speaker according to an embodiment of the present invention, and FIG. 3 is a plan view of a damper portion of the damper member of FIG. .
【００２０】尚、本実施の形態例のスピーカと図４に示
す従来のスピーカとの相違点は、二重構造ダンパーの箇
所のみで、他の部分は同一構造なので、同一部分は同一
符号を付し、重複する説明は省略する。The difference between the speaker of this embodiment and the conventional speaker shown in FIG. 4 lies only in the dual structure damper, and the other parts have the same structure. However, redundant description will be omitted.
【００２１】本実施の形態例の二重構造ダンパー１０１
は、２つの同じ形状の部材、即ち、第１のダンパー部材
１１１と、第２のダンパー部材１２１とから構成されて
いる。Dual structure damper 101 of the present embodiment
Is composed of two members having the same shape, that is, a first damper member 111 and a second damper member 121.
【００２２】尚、本実施の形態例では、第１のダンパー
部材１１１および第２のダンパー部材１２１は、樹脂成
形法で製造した。第１のダンパー部材１１１は、一方の
端面側は開放面、他方の端面側には中心部にボイスコイ
ル２３が巻回されたボビン２５が取り付けられる穴１１
３が形成され、ボイスコイル２３の移動方向に可撓可能
なダンパー部１１５が形成された筒状となっている。In this embodiment, the first damper member 111 and the second damper member 121 are manufactured by the resin molding method. The first damper member 111 has a hole 11 in which one end surface side is an open surface, and the other end surface side is provided with a bobbin 25 around which a voice coil 23 is wound around the center thereof.
3 is formed, and a damper portion 115 that is flexible in the moving direction of the voice coil 23 is formed into a tubular shape.
【００２３】また、第２のダンパー部材１２１も、一方
の端面側は開放面、他方の端面側には中心部にボイスコ
イル２３が巻回されたボビン２５が取り付けられる穴１
２３が形成され、ボイスコイル２３の移動方向に可撓可
能なダンパー部１２５が形成された筒状となっている。The second damper member 121 also has a hole 1 in which one end face side is an open face and the other end face side is provided with a bobbin 25 around which a voice coil 23 is wound around the center thereof.
23 is formed, and a damper portion 125 that is flexible in the moving direction of the voice coil 23 is formed into a tubular shape.
【００２４】第１のダンパー部材１１１のダンパー部１
１５、第２のダンパー部材１２１のダンパー部１２５に
は、図３に示すように、それぞれ円弧状の長穴１１５
ａ,１２５ａが千鳥状に配列された、いわゆる蝶ダンパ
ーとなっている。The damper portion 1 of the first damper member 111
15, and the damper portion 125 of the second damper member 121, as shown in FIG.
It is a so-called butterfly damper in which a and 125a are arranged in a zigzag pattern.
【００２５】第１のダンパー部材１１１および第２のダ
ンパー部材１２１の筒面の開放面側縁部にそって、互い
に嵌合可能な軸方向の凹部１１１ａ,１２１ａおよび凸
部１１１ｂ,１２１ｂが形成されている。Axial recesses 111a, 121a and protrusions 111b, 121b which can be fitted to each other are formed along the edges of the open surfaces of the cylindrical surfaces of the first damper member 111 and the second damper member 121. ing.
【００２６】さらに、第１のダンパー部材１１１、第２
のダンパー部材１２１の凸部１１１ｂ,１２１ｂには、
第２のダンパー部材１２１,第１のダンパー部材１１１
の凹部１２１ａ,１１１ａに形成された穴１２１ｃ,１１
１ｃに圧入されるダボ１１１ｄ,１２１ｄが形成されて
いる。Further, the first damper member 111 and the second damper member 111
In the convex portions 111b and 121b of the damper member 121 of
The second damper member 121, the first damper member 111
Holes 121c, 11 formed in the concave portions 121a, 111a of the
Dowels 111d and 121d that are press-fitted into 1c are formed.
【００２７】そして、第１のダンパー部材１１１の開放
面と、第２のダンパー部材１２１の開放面とを対向さ
せ、第１のダンパー部材１１１の凹部１１１ａ，凸部１
１１ｂと第２のダンパー部材１２１の凹部１２１ａ，凸
部１２１ｂとを嵌合させる。Then, the open surface of the first damper member 111 and the open surface of the second damper member 121 are opposed to each other, and the concave portion 111a and the convex portion 1 of the first damper member 111 are arranged.
11b and the concave portion 121a and the convex portion 121b of the second damper member 121 are fitted to each other.
【００２８】この時、第１のダンパー部材１１１および
第２のダンパー部材１２１のダボ１１１ｄ，１２１ｄが
第２のダンパー部材１２１および第１のダンパー部材１
１１の穴１２１ｃ，１１１ｃに圧入され、第１のダンパ
ー部材１１１と第２のダンパー部材１２１とが固着され
る。At this time, the dowels 111d and 121d of the first damper member 111 and the second damper member 121 are replaced by the second damper member 121 and the first damper member 1.
The first damper member 111 and the second damper member 121 are fixed by being press-fitted into the eleven holes 121c and 111c.
【００２９】上記構成の二重構造ダンパー１０１を用い
たスピーカによれば、以下のような効果を得ることがで
きる。
（１) 一方の端面側は開放面、他方の端面側には中心
部にボイスコイル２３が巻回されたボビン２５が取り付
けられる穴１１３が形成され、ボイスコイル２３の移動
方向に可撓可能なダンパー部１１５が形成された筒状の
第１のダンパー部材１１１と、第１のダンパー部材１１
１と同一形状の第２のダンパー部材１２１とでなり、第
１のダンパー部材１１１の開放面と、第２のダンパー部
材１１１の開放面とが対向するように第１および第２の
ダンパー部材を一体化したことにより、第１のダンパー
部材１１１の筒面と、第２のダンパー部材１２１の筒面
とが２つのダンパー部１１５，１２５の間隔を確保する
スペーサの役割を果たすので、スペーサが不要となり、
組み付け工数が低減し、コストも低減できる。According to the speaker using the dual structure damper 101 having the above structure, the following effects can be obtained. (1) One end face side is an open face, and the other end face side is formed with a hole 113 in the center of which a bobbin 25 around which the voice coil 23 is wound is attached, and is flexible in the moving direction of the voice coil 23. A cylindrical first damper member 111 in which the damper portion 115 is formed, and the first damper member 11
The second damper member 121 having the same shape as that of the first damper member 121 and the first and second damper members are arranged so that the open surface of the first damper member 111 and the open surface of the second damper member 111 face each other. Since they are integrated, the cylindrical surface of the first damper member 111 and the cylindrical surface of the second damper member 121 serve as a spacer that secures the distance between the two damper portions 115 and 125, so that no spacer is required. Next to
The number of assembly steps can be reduced and the cost can be reduced.
【００３０】（２)第１および第２のダンパー部材１１
１，１２１の筒面の開放面側縁部にそって、互いに嵌合
可能な軸方向の凹部１１１ａ，１２１ａおよび凸部１１
１ｂ，１２１ｂａを形成したことにより、第１のダンパ
ー部材１１１および第２のダンパー部材１２１のダンパ
ー部１１５，１２５の穴１１３，１２３の位置決めがな
され、中心出しが容易となる。(2) First and second damper members 11
Axial recesses 111a and 121a and protrusions 11 that can be fitted to each other along the open-surface-side edge of the cylindrical surface of 1, 121.
By forming 1b and 121ba, the holes 113 and 123 of the damper parts 115 and 125 of the 1st damper member 111 and the 2nd damper member 121 are positioned, and centering becomes easy.
【００３１】（３）第１および第２のダンパー部材１１
１，１２１は、樹脂材料を射出成形してなることによ
り、樹脂材の選定により、所望のｆｏ（最低共振周波
数）を得ることができる。(3) First and second damper members 11
1, 121 are injection-molded of a resin material, so that a desired fo (minimum resonance frequency) can be obtained by selecting the resin material.
【００３２】（４）第１のダンパー部材１１１および第
２のダンパー部材１２１のダボ１１１ｄ，１２１ｄが第
２のダンパー部材１２１および第１のダンパー部材１１
１の穴１２１ｃ，１１１ｃに圧入され、第１のダンパー
部材１１１と第２のダンパー部材１２１とが固着される
ので、接着剤、ビス等の他の固着手段が不要となる。(4) The dowels 111d and 121d of the first damper member 111 and the second damper member 121 are the second damper member 121 and the first damper member 11 respectively.
Since the first damper member 111 and the second damper member 121 are press-fitted into the first holes 121c and 111c to be fixed to each other, other fixing means such as an adhesive or a screw is not necessary.
【００３３】尚、本発明は、同一形状のダンパー部材を
２個１組西田二重構造ダンパーを構成するものである
が、１個のみを使用して一般的なシングル構造にも適用
できることは言うまでもない。The present invention constitutes a set of two damper members having the same shape and constitutes a Nishida double structure damper, but it goes without saying that the present invention can be applied to a general single structure by using only one damper member. Yes.
【００３４】[0034]
【発明の効果】以上述べたように請求項１記載の発明に
よれば、一方の端面側は開放面、他方の端面側には中心
部に前記ボイスコイルが取り付けられる穴が形成され、
前記ボイスコイルの移動方向に可撓可能なダンパー部が
形成された筒状の第１のダンパー部材と、該第１のダン
パー部材と同一形状の第２のダンパー部材とでなり、前
記第１のダンパー部材の開放面と、前記第２のダンパー
部材の開放面とが対向するように第１および第２のダン
パー部材を一体化したことにより、第１のダンパー部材
の筒面と、第２のダンパー部材の筒面とが２つのダンパ
ー部の間隔を確保するスペーサの役割を果たすので、ス
ペーサが不要となり、組み付け工数が低減し、コストも
低減できる。As described above, according to the invention described in claim 1, one end face side is formed with an open face, and the other end face side is formed with a hole at the center for attaching the voice coil.
The first damper member has a tubular shape in which a damper portion that is flexible in the moving direction of the voice coil is formed, and a second damper member having the same shape as the first damper member. By integrating the first and second damper members so that the open surface of the damper member and the open surface of the second damper member face each other, the cylindrical surface of the first damper member and the second damper member are integrated. Since the cylindrical surface of the damper member plays a role of a spacer that secures a distance between the two damper portions, the spacer is not required, and the number of assembling steps can be reduced and the cost can be reduced.
【００３５】請求項２記載の発明によれば、前記第１お
よび第２のダンパー部材の筒面の開放面側縁部にそっ
て、互いに嵌合可能な軸方向の凹凸部を形成したことに
より、第１および第２のダンパー部材のダンパー部の穴
の位置決めがなされ、中心出しが容易となる。According to the second aspect of the present invention, the axial concavo-convex portions which can be fitted to each other are formed along the edges of the open surface side of the cylindrical surfaces of the first and second damper members. The holes of the damper portions of the first and second damper members are positioned, which facilitates centering.
【００３６】請求項３記載の発明によれば、前記第１お
よび第２のダンパー部材は、樹脂材料を射出成形してな
ることにより、樹脂材の選定により、所望のｆｏ（最低
共振周波数）を得ることができる。According to the third aspect of the present invention, the first and second damper members are formed by injection molding a resin material, so that a desired fo (minimum resonance frequency) can be obtained by selecting the resin material. Obtainable.
【００３７】請求項４記載の発明によれば、請求項１乃
至３のいずれかに記載の二重構造ダンパーを用いたこと
により、スペーサが不要で、組み付け工数が低減し、コ
ストも低減できる。According to the fourth aspect of the present invention, since the double structure damper according to any of the first to third aspects is used, the spacer is unnecessary, the number of assembling steps can be reduced, and the cost can be reduced.
【００３８】また、中心出しも容易となる。さらに、所
望のｆｏ（最低共振周波数）を得ることができる。Further, centering becomes easy. Further, a desired fo (minimum resonance frequency) can be obtained.
【図１】本実施の形態例の二重構造ダンパーの分解斜視
図である。FIG. 1 is an exploded perspective view of a dual structure damper according to an embodiment of the present invention.
【図２】本発明の実施の形態例のスピーカの断面図であ
る。FIG. 2 is a sectional view of the speaker according to the embodiment of the present invention.
【図３】図１のダンパー部材のダンパー部の平面図であ
る。FIG. 3 is a plan view of a damper portion of the damper member shown in FIG.
【図４】二重構造ダンパーを用いた従来のスピーカの断
面図である。FIG. 4 is a cross-sectional view of a conventional speaker using a dual structure damper.
１１１ 第１のダンパー部材 １１３，１２３ 穴 １１５，１２５ ダンパー部 １２１ 第２のダンパー部材 111 First damper member 113,123 holes 115,125 damper part 121 Second damper member
Claims (4)
した２箇所に結合され、前記ボイスコイルを磁気回路の
磁気ギャップ間に位置するように支持する二重構造ダン
パーにおいて、 一方の端面側は開放面、他方の端面側には中心部に前記
ボイスコイルが取り付けられる穴が形成され、前記ボイ
スコイルの移動方向に可撓可能なダンパー部が形成され
た筒状の第１のダンパー部材と、 該第１のダンパー部材と同一形状の第２のダンパー部材
と、 でなり、 前記第１のダンパー部材の開放面と、前記第２のダンパ
ー部材の開放面とが対向するように第１および第２のダ
ンパー部材を一体化したことを特徴とする二重構造ダン
パー。1. A dual structure damper, which is coupled to two positions apart from each other in the axial direction of a voice coil of a speaker and supports the voice coil so as to be positioned between magnetic gaps of a magnetic circuit, wherein one end face side is open. A cylindrical first damper member having a hole formed in the center portion on the surface, the other end surface side, to which the voice coil is attached, and a damper portion that is flexible in the moving direction of the voice coil; A second damper member having the same shape as the first damper member, and the first and second damper members are arranged so that the open surface of the first damper member and the open surface of the second damper member face each other. Double structure damper characterized by integrating the damper member of.
面の開放面側縁部にそって、互いに嵌合可能な軸方向の
凹凸部を形成したことを特徴とする請求項１記載の二重
構造ダンパー。2. The axially concavo-convex portion which can be fitted to each other is formed along the open surface side edges of the cylindrical surfaces of the first and second damper members. Double structure damper.
樹脂材料を射出成形してなることを特徴とする請求項１
または２記載の二重構造ダンパー。3. The first and second damper members,
The resin material is injection-molded, and
Or the double structure damper described in 2.
構造ダンパーを用いたことを特徴とするスピーカ。4. A speaker using the dual structure damper according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001213120A JP4459482B2 (en) | 2001-07-13 | 2001-07-13 | Dual structure damper and speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001213120A JP4459482B2 (en) | 2001-07-13 | 2001-07-13 | Dual structure damper and speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003032788A true JP2003032788A (en) | 2003-01-31 |
| JP4459482B2 JP4459482B2 (en) | 2010-04-28 |
Family
ID=19048159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001213120A Expired - Fee Related JP4459482B2 (en) | 2001-07-13 | 2001-07-13 | Dual structure damper and speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4459482B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100963562B1 (en) * | 2009-11-11 | 2010-06-15 | 범진아이엔디(주) | Super-slim dynamic speaker |
| KR100963561B1 (en) * | 2009-09-07 | 2010-06-15 | 범진아이엔디(주) | Damper for super-slim dynamic speaker |
| CN111083616A (en) * | 2019-12-19 | 2020-04-28 | 歌尔股份有限公司 | Vibration exciter for electronic product and electronic product |
| WO2025118398A1 (en) * | 2023-12-06 | 2025-06-12 | 歌尔股份有限公司 | Sound-producing device, sound-producing module and electronic device |
-
2001
- 2001-07-13 JP JP2001213120A patent/JP4459482B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100963561B1 (en) * | 2009-09-07 | 2010-06-15 | 범진아이엔디(주) | Damper for super-slim dynamic speaker |
| KR100963562B1 (en) * | 2009-11-11 | 2010-06-15 | 범진아이엔디(주) | Super-slim dynamic speaker |
| CN111083616A (en) * | 2019-12-19 | 2020-04-28 | 歌尔股份有限公司 | Vibration exciter for electronic product and electronic product |
| CN111083616B (en) * | 2019-12-19 | 2021-12-24 | 歌尔股份有限公司 | Vibration exciter for electronic product and electronic product |
| WO2025118398A1 (en) * | 2023-12-06 | 2025-06-12 | 歌尔股份有限公司 | Sound-producing device, sound-producing module and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4459482B2 (en) | 2010-04-28 |
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