JP2008054063A - Bone conduction speaker - Google Patents

Bone conduction speaker Download PDF

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JP2008054063A
JP2008054063A JP2006228293A JP2006228293A JP2008054063A JP 2008054063 A JP2008054063 A JP 2008054063A JP 2006228293 A JP2006228293 A JP 2006228293A JP 2006228293 A JP2006228293 A JP 2006228293A JP 2008054063 A JP2008054063 A JP 2008054063A
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vibration
bone conduction
voice coil
conduction speaker
iron core
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JP4710757B2 (en
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Takanori Nakatani
任徳 中谷
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Cosmo Gear Kk
コスモギア株式会社
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<P>PROBLEM TO BE SOLVED: To provide a bone conduction speaker which reduces pain of a human body and fatigue feeling while improving the efficiency of bone conduction to be transferred to a vibrating lid by adopting a coil spring. <P>SOLUTION: The bone conduction speaker comprises: a case main body 10 with an internal flight 11 opened vertically in a fixed width on an inner circumferential side projectingly provided therein; an iron cone 2 arranged at a center position below the internal flight 11 in the case main body 10; a ring-shaped magnet 3 arranged outside the iron core 2; a voice coil 4 located between the iron core 2 and the magnet 3; a vibrating member 5 connected an upper part of the voice coil 4 to receive a vibration signal generated in the voice coil 4; and a coil spring 6 provided between a lower part of the vibrating member 5 and the internal flight 11 or its peripheral part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は骨伝導スピーカーに係わり、より詳しくは、骨伝導効率を向上させつつ、装着による人体への痛みや疲労感を低減できる骨伝導スピーカーに関する。   The present invention relates to a bone conduction speaker, and more particularly, to a bone conduction speaker that can reduce pain and fatigue to the human body due to wearing while improving bone conduction efficiency.
通常、音波で伝えられる音の振動は耳の中にある鼓膜へ伝達される。鼓膜の中にある三つの骨(耳小骨)があるが、鼓膜の振動はこの骨を通じてネジのような蝸牛に伝達される。蝸牛にはリンバ液があり、このリンパ液の振動が電気信号に変わりながら聴覚神経に伝達され、脳が音を認識する。これに対して、骨伝導とは、上記メカニズムにおける振動が鼓膜と耳小骨を経由する過程を省略したものである。すなわち、音の振動が頭蓋骨を通じて直接蝸牛に送られ、鼓膜や耳小骨に異常がある難聴者等であっても、蝸牛や聴覚神経が正常であればこの骨伝導により確実に音を聞くことができる。この原理を応用したスピーカーが骨伝導スピーカー(たとえば、特許文献1参照。)である。   Usually, sound vibrations transmitted by sound waves are transmitted to the eardrum in the ear. There are three bones (ear ossicles) in the eardrum, and the vibration of the eardrum is transmitted to the cochlea like a screw through this bone. The cochlea has limba fluid, and the vibration of this lymph fluid is transmitted to the auditory nerve while turning into an electrical signal, and the brain recognizes the sound. On the other hand, bone conduction omits the process in which the vibration in the above mechanism passes through the eardrum and the ossicle. That is, sound vibrations are sent directly to the cochlea through the skull, and even hearing-impaired people with abnormalities in the eardrum or ear ossicles can hear the sound reliably through this bone conduction if the cochlea and auditory nerve are normal. it can. A speaker applying this principle is a bone conduction speaker (see, for example, Patent Document 1).
図5〜7は、従来の代表的な骨伝導スピーカー101を示しており、その構造は、上下方向へ開放された円筒状のケース本体110と、その底部に覆設される円板状の下部カバー113と、ケース本体110内部における下部カバー113上に固定される鉄芯102と、鉄芯102の外側に配置されるリング状のマグネット103と、該マグネット103の上に載置される金属リング107と、前記鉄芯102とマグネット103および金属リング107との間に介装され、電気的信号を振動信号へ変換するためのボイスコイル104と、ボイスコイル104上部に結合される振動部材105と、該振動部材105をケース本体110に対して移動可能に連結する振動板108とより構成されている。振動板108は、外周部と内周部が中心軸方向に弾性移動するバネ部材であり、外周部がケース本体110の上端部に連結され、内周部が、上下に分割構成された振動部材105の下部突起105b及び上部突起105aにより挟持されている。   5 to 7 show a typical bone conduction speaker 101 of the related art, which has a cylindrical case body 110 that is open in the vertical direction and a disk-like lower part that covers the bottom. Cover 113, iron core 102 fixed on lower cover 113 inside case main body 110, ring-shaped magnet 103 disposed outside iron core 102, and metal ring placed on magnet 103 107, a voice coil 104 interposed between the iron core 102, the magnet 103, and the metal ring 107 for converting an electrical signal into a vibration signal, and a vibration member 105 coupled to the upper portion of the voice coil 104 The vibrating member 105 is connected to the case main body 110 so as to be movable. The diaphragm 108 is a spring member whose outer peripheral portion and inner peripheral portion are elastically moved in the central axis direction, the outer peripheral portion is connected to the upper end portion of the case body 110, and the inner peripheral portion is divided into upper and lower parts. The lower protrusion 105b and the upper protrusion 105a of 105 are clamped.
そして、骨伝導スピーカー101のボイスコイル104に電気信号が入力されると、該ボイスコイル104がマグネット103との引力又は磁力によって上下方向に振動され、このボイスコイル104の振動は、金属リング107により増幅されて振動部材105に伝達される。下部突起105bの振動は振動板108によって上下方向に大きく振動し、上部突起 105を通じて人体の頭蓋骨に伝達される。   When an electrical signal is input to the voice coil 104 of the bone conduction speaker 101, the voice coil 104 is vibrated in the vertical direction by the attractive force or magnetic force with the magnet 103, and the vibration of the voice coil 104 is caused by the metal ring 107. Amplified and transmitted to the vibrating member 105. The vibration of the lower protrusion 105 b is greatly vibrated in the vertical direction by the diaphragm 108 and is transmitted to the human skull through the upper protrusion 105.
しかしながら、このような従来の骨伝導スピーカー101は、ボイスコイル104を介した振動部材105の振動を、多数の開口部を有する平板状の振動板108でのみ支持するため、骨伝導効率が低下するといった問題があった。また、振動部材105を支持する強度も必要であるため、振動板108の上下の振動距離は短くなり、頭蓋骨に伝達できる振動効率の向上も限界があった。   However, since such a conventional bone conduction speaker 101 supports the vibration of the vibration member 105 via the voice coil 104 only by the flat diaphragm 108 having a large number of openings, the bone conduction efficiency is lowered. There was a problem. Further, since the strength for supporting the vibration member 105 is also necessary, the vibration distance above and below the diaphragm 108 is shortened, and there is a limit to the improvement in vibration efficiency that can be transmitted to the skull.
さらに、従来の骨伝導スピーカーは、骨伝導効率が可能な限り向上させるため、その振動部材105を頭蓋骨に強く密着させて使用していた。このため、前記上部突起が頭蓋骨を強く押す状態になり、長時間骨伝導スピーカーを使用すると頭蓋骨の皮膚に痛みが誘発され、疲労感が大きくなるといった問題もあった。   Furthermore, in order to improve the bone conduction efficiency as much as possible, the conventional bone conduction speaker has been used with its vibration member 105 in close contact with the skull. For this reason, the upper procession is in a state of strongly pressing the skull, and when a bone conduction speaker is used for a long time, there is a problem that pain is induced in the skin of the skull and fatigue is increased.
特開2003−340370号公報JP 2003-340370 A
そこで、本発明が前述の状況に鑑み、解決しようとするところは、振動部材による骨伝導効率を向上させることができると同時に、人体の痛み及び疲労感をも低減できる骨伝導スピーカーを提供する点にある。   Therefore, in view of the above-mentioned situation, the present invention intends to provide a bone conduction speaker that can improve the bone conduction efficiency by the vibration member and at the same time reduce the pain and fatigue of the human body. It is in.
本発明は、前述の課題解決のために、上下方向へ開放され、内周側に一定幅の内部フライトを突設したケース本体と、前記ケース本体内における前記内部フライト下方の中心位置に配される鉄芯と、前記鉄芯の外側に配されるリング状のマグネットと、前記鉄芯と前記マグネットの間に位置されるボイスコイルと、前記ボイスコイルの上部に連結され、前記ボイスコイルに生じる振動信号が伝達される振動部材と、前記振動部材の下部と前記内部フライト又はその周辺部との間に介装されるコイルスプリングと、より構成したことを特徴とする骨伝導スピーカーを構成した。   In order to solve the above-mentioned problems, the present invention is arranged in a case main body that is open in the vertical direction and has an internal flight of a certain width projecting on the inner peripheral side, and a central position below the internal flight in the case main body. An iron core, a ring-shaped magnet disposed on the outside of the iron core, a voice coil positioned between the iron core and the magnet, and connected to an upper portion of the voice coil to be generated in the voice coil. A bone conduction speaker comprising a vibration member to which a vibration signal is transmitted, and a coil spring interposed between a lower portion of the vibration member and the internal flight or its peripheral portion is configured.
ここで、前記振動部材の下部に、前記ボイスコイルの上端部が係合するボイスコイル取付部と、前記コイルスプリングの上端部が係合するスプリング取付部を設けたものが好ましい。   Here, it is preferable that a lower portion of the vibration member is provided with a voice coil attachment portion that engages with an upper end portion of the voice coil and a spring attachment portion that engages with an upper end portion of the coil spring.
また、前記内部フライトの下面と前記マグネットの上面との間に金属リングを介装し、該金属リングの上面で前記コイルスプリングの下端部を支持したものが好ましい。   Further, it is preferable that a metal ring is interposed between the lower surface of the internal flight and the upper surface of the magnet, and the lower end portion of the coil spring is supported by the upper surface of the metal ring.
更に、前記振動部材を前記ケース本体内周面に連結する可撓性を有する振動板を設けたものが好ましい。   Furthermore, it is preferable to provide a vibration plate having flexibility for connecting the vibration member to the inner peripheral surface of the case body.
また、前記ケース本体の上端部に、前記振動部材が通過しうる貫通穴を備えた蓋体を覆設したものが好ましい。   Moreover, it is preferable to cover the upper end portion of the case body with a cover provided with a through hole through which the vibration member can pass.
以上にしてなる本願発明の骨伝導スピーカーによれば、振動部材とケース本体の内部フライト間にコイルスプリングを介在させたことにより、前記振動部材の振動面からの振動効率、すなわち骨伝導の効率が著しく向上する。   According to the bone conduction speaker of the present invention having the above structure, the vibration efficiency from the vibration surface of the vibration member, that is, the bone conduction efficiency is obtained by interposing the coil spring between the internal flight of the vibration member and the case body. Remarkably improved.
また、コイルスプリングにより振動部材を支持するので、振動板は不要あるいは薄くストロークの大きなものとすることが可能である。とくにケース本体に蓋体を設ければ、振動板の設計の自由度はさらに大きくなる。   Further, since the vibration member is supported by the coil spring, the vibration plate is unnecessary or thin and has a large stroke. In particular, if a case body is provided with a lid, the degree of freedom in designing the diaphragm is further increased.
そして、骨伝導スピーカーを頭蓋骨に密着させた場合、コイルスプリングが振動部材を所定の方向へ緩衝させることによって、人体の痛みや疲労感を著しく低減させることができる。   When the bone conduction speaker is brought into close contact with the skull, the coil spring cushions the vibration member in a predetermined direction, so that pain and fatigue of the human body can be significantly reduced.
次に、本発明の実施形態を添付図面に基づき詳細に説明する。   Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
図1は本発明の代表的実施形態に係る骨伝導スピーカーを示す斜視図であり、図2は縦断面図、図3は分解断面図、図4は分解斜視図である。図中符号10はケース本体、2は鉄芯、3はマグネット、4はボイスコイル、5は振動部材、6はコイルスプリング、7は金属リング、8は振動板をそれぞれ示している。   1 is a perspective view showing a bone conduction speaker according to a typical embodiment of the present invention, FIG. 2 is a longitudinal sectional view, FIG. 3 is an exploded sectional view, and FIG. 4 is an exploded perspective view. In the figure, reference numeral 10 denotes a case body, 2 denotes an iron core, 3 denotes a magnet, 4 denotes a voice coil, 5 denotes a vibration member, 6 denotes a coil spring, 7 denotes a metal ring, and 8 denotes a diaphragm.
骨伝導スピーカー1は、上下方向へ開放され、内周側に一定幅の内部フライト11を突設したケース本体10と、前記ケース本体10内における前記内部フライト11下方の中心位置に配される鉄芯2と、前記鉄芯2の外側に配されるリング状のマグネット3と、前記鉄芯2と前記マグネット3の間に位置されるボイスコイル4と、前記ボイスコイル4の上部に連結され、前記ボイスコイル4に生じる振動信号が伝達される振動部材5と、前記振動部材5の下部と前記内部フライト11又はその周辺部との間に介装されるコイルスプリング6とより構成されている。   The bone conduction speaker 1 is opened in the vertical direction, and a case main body 10 having an inner flight 11 of a certain width projecting on the inner peripheral side, and an iron disposed at a central position below the inner flight 11 in the case main body 10. A core 2, a ring-shaped magnet 3 disposed outside the iron core 2, a voice coil 4 positioned between the iron core 2 and the magnet 3, and an upper portion of the voice coil 4; A vibration member 5 to which a vibration signal generated in the voice coil 4 is transmitted, and a coil spring 6 interposed between the lower portion of the vibration member 5 and the internal flight 11 or its peripheral portion.
振動部材5をケース本体10内周面に連結するための可撓性を有する振動板8が設けられており、ケース本体10の上端部には、振動部材5が通過しうる貫通穴を備えた蓋体12が覆設されている。具体的には、ケース本体10の上端縁に段差溝16が形成されており、この段差溝16に振動板8をはめ込んだ後、その上から蓋体12を嵌めこむことにより固定されている。   A flexible diaphragm 8 for connecting the vibration member 5 to the inner peripheral surface of the case body 10 is provided, and an upper end portion of the case body 10 is provided with a through hole through which the vibration member 5 can pass. A lid 12 is covered. Specifically, a step groove 16 is formed at the upper end edge of the case body 10, and after the diaphragm 8 is fitted into the step groove 16, the lid body 12 is fitted from above to be fixed.
ケース本体10の底部はバーディーカバー13により閉塞されており、該バーディーカバー13の上面に鉄芯2が配置されている。鉄芯2は、内部フライト11の内周面15の径よりも小さい外径のポールビス21と、前記バーディーカバー13に密着される下敷き部22とを備えている。   The bottom of the case body 10 is closed by a birdie cover 13, and the iron core 2 is disposed on the upper surface of the birdie cover 13. The iron core 2 includes a pole screw 21 having an outer diameter smaller than the diameter of the inner peripheral surface 15 of the internal flight 11 and an underlay portion 22 that is in close contact with the birdie cover 13.
マグネット3は、ケース本体10の下段内周面14に密着する外周面を備えたリング状のマグネットであり、中心に形成された通穴(内周壁30)は、鉄芯2のポールビス21を隙間を介して挿通できる寸法に設計されている。そして、その隙間にボイスコイル4が配設される。マグネット3の上面と内部フライト11の下面との間には、金属リング7が設けられている。   The magnet 3 is a ring-shaped magnet having an outer peripheral surface that is in close contact with the lower inner peripheral surface 14 of the case body 10, and a through-hole (inner peripheral wall 30) formed in the center forms a gap between the pole screw 21 of the iron core 2. It is designed to be dimensioned so that it can be inserted through. And the voice coil 4 is arrange | positioned in the clearance gap. A metal ring 7 is provided between the upper surface of the magnet 3 and the lower surface of the internal flight 11.
ボイスコイル4は、鉄芯2のポールビス21とマグネット3及び金属リング7の内周壁30,70と間の隙間に配され、該ボイスコイル4の上端部は、振動部材5の下部に形成されたボイスコイル取付部52に差し込んで連結されている。ここで、ボイスコイル4の下端部と鉄芯2の下敷き部22は離れて浮いた状態に設定されている。   The voice coil 4 is disposed in a gap between the pole screw 21 of the iron core 2 and the magnet 3 and the inner peripheral walls 30 and 70 of the metal ring 7, and the upper end portion of the voice coil 4 is formed below the vibration member 5. The voice coil mounting portion 52 is inserted and connected. Here, the lower end portion of the voice coil 4 and the underlay portion 22 of the iron core 2 are set in a state of floating apart.
従って、ボイスコイル4に所定の電気的な信号が入力された場合、該ボイスコイル4に形成される磁気力と前記マグネット3の磁気力との相互作用(引力又は斥力)が生じることによって、前記ボイスコイル4が上下方向へ振動する。勿論、このボイスコイル4の作用によって、振動部材5もやはり上部方向又は下部方向へ振動する。従って、この振動は骨伝導の現象を誘発させる結果になり、最終的に、人体が骨伝導の現象によって音を聞くことができる。   Therefore, when a predetermined electrical signal is input to the voice coil 4, an interaction (attraction or repulsion) between the magnetic force formed in the voice coil 4 and the magnetic force of the magnet 3 occurs. The voice coil 4 vibrates up and down. Of course, due to the action of the voice coil 4, the vibration member 5 also vibrates upward or downward. Therefore, this vibration results in inducing the phenomenon of bone conduction, and finally the human body can hear sound by the phenomenon of bone conduction.
また、コイルスプリング6は、金属リング7の上面に下端部を支持されるとともに、上端部が振動部材5の下部に形成されたスプリング取付部51に差し込んで連結されている。このコイルスプリング6は、ボイスコイル4の電気的な動作によって振動部材5が振動する時に、前記振動部材5の振動現象を弾力的に起こして骨伝導の効率を向上させるように作用する。勿論、このコイルスプリング6は緩衝効果もあるので、頭皮に伝達される振動を緩和させて、痛み及び疲労感を低下させる役割もする。前記振動部材5は外周面が振動面となる中実の円柱状に構成されている。   The coil spring 6 has a lower end supported on the upper surface of the metal ring 7 and an upper end inserted into and connected to a spring mounting portion 51 formed at the lower portion of the vibration member 5. When the vibration member 5 vibrates due to the electrical operation of the voice coil 4, the coil spring 6 acts to elastically cause a vibration phenomenon of the vibration member 5 and improve the efficiency of bone conduction. Of course, since the coil spring 6 also has a buffering effect, it also serves to reduce vibrations transmitted to the scalp and reduce pain and fatigue. The vibration member 5 is formed in a solid cylindrical shape whose outer peripheral surface is a vibration surface.
以上の構成を備えた骨伝導スピーカー1は、次のように作動する。   The bone conduction speaker 1 having the above configuration operates as follows.
まず、所定の音に対応する電流信号がボイスコイル4に入力される。その後、ボイスコイル4はマグネット3、金属リング7及び鉄芯2の間の磁気力により所定の周波数で振動し、このボイスコイル4の振動は振動部材5に直接に伝達され、振動部材5もやはり所定の周波数で振動する。   First, a current signal corresponding to a predetermined sound is input to the voice coil 4. Thereafter, the voice coil 4 vibrates at a predetermined frequency by the magnetic force between the magnet 3, the metal ring 7 and the iron core 2, and the vibration of the voice coil 4 is directly transmitted to the vibrating member 5. Vibrates at a predetermined frequency.
そして、この振動部材5の振動面を通じて、例えば、人体の頭蓋骨で所定の音を伝達することができ、頭蓋骨内の鼓膜や耳小骨に異常のある難聴者でも蝸牛や聴覚神経が正常であると、骨伝導で確実に音を聞くことができる。   And, through the vibration surface of the vibration member 5, for example, a predetermined sound can be transmitted by the skull of the human body, and the cochlea and the auditory nerve are normal even for a deaf person who has an abnormality in the eardrum or ossicle in the skull. Can hear sound reliably by bone conduction.
その際、前記振動部材5は振動板8およびコイルスプリング6に支持されており、主にコイルスプリング6によって振動部材5を大きく弾力的に振動させることができる。即ち、前記コイルスプリング6によって、前記振動部材5の振動面からの骨伝導の効率が著しく向上する。また、前記振動面が人体の頭皮にソフトに密着されるので、頭皮頭痛及び疲労度が大きく緩和される。   At that time, the vibration member 5 is supported by the diaphragm 8 and the coil spring 6, and the vibration member 5 can be vibrated largely and elastically mainly by the coil spring 6. That is, the coil spring 6 significantly improves the efficiency of bone conduction from the vibration surface of the vibration member 5. In addition, since the vibration surface is softly attached to the scalp of the human body, scalp headache and fatigue are greatly relieved.
以上、本発明の実施形態について説明したが、本発明はこうした実施例に何ら限定されるものではなく、本発明の要旨を逸脱しない範囲において種々なる形態で実施し得ることは勿論である。   Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and can of course be implemented in various forms without departing from the gist of the present invention.
本発明の代表的実施形態に係る骨伝導スピーカーを示す斜視図。1 is a perspective view showing a bone conduction speaker according to a representative embodiment of the present invention. 同じく骨伝導スピーカーを示す縦断面図。The longitudinal cross-sectional view which similarly shows a bone conduction speaker. 同じく骨伝導スピーカーを示す分解断面図。The disassembled sectional view which similarly shows a bone conduction speaker. 同じく骨伝導スピーカーを示す分解斜視図。The disassembled perspective view which similarly shows a bone conduction speaker. 従来の骨伝導スピーカーを示す斜視図。The perspective view which shows the conventional bone conduction speaker. 従来の骨伝導スピーカーを示す縦断面図。The longitudinal cross-sectional view which shows the conventional bone conduction speaker. 従来の骨伝導スピーカーを示す分解斜視図。The disassembled perspective view which shows the conventional bone conduction speaker.
符号の説明Explanation of symbols
1 骨伝導スピーカー
2 鉄芯
3 マグネット
4 ボイスコイル
5 振動部材
6 コイルスプリング
7 金属リング
8 振動板
10 ケース本体
11 内部フライト
12 蓋体
13 バーディーカバー
14 下段内周面
15 内周面
16 段差溝
21 ポールビス
22 下敷き部
30 通穴
30,70 内周壁
51 スプリング取付部
52 ボイスコイル取付部
101 骨伝導スピーカー
102 鉄芯
103 マグネット
104 ボイスコイル
105b 下部突起
105a 上部突起
105 振動部材
107 金属リング
108 振動板
110 ケース本体
113 下部カバー

DESCRIPTION OF SYMBOLS 1 Bone conduction speaker 2 Iron core 3 Magnet 4 Voice coil 5 Vibrating member 6 Coil spring 7 Metal ring 8 Diaphragm 10 Case main body 11 Internal flight 12 Lid 13 Birdie cover 14 Lower inner peripheral surface 15 Inner peripheral surface 16 Step groove 21 Pole screw DESCRIPTION OF SYMBOLS 22 Underlay part 30 Through hole 30,70 Inner peripheral wall 51 Spring attachment part 52 Voice coil attachment part 101 Bone conduction speaker 102 Iron core 103 Magnet 104 Voice coil 105b Lower protrusion 105a Upper protrusion 105 Vibration member 107 Metal ring 108 Diaphragm 110 Case body 113 Bottom cover

Claims (5)

  1. 上下方向へ開放され、内周側に一定幅の内部フライトを突設したケース本体と、
    前記ケース本体内における前記内部フライト下方の中心位置に配される鉄芯と、
    前記鉄芯の外側に配されるリング状のマグネットと、
    前記鉄芯と前記マグネットの間に位置されるボイスコイルと、
    前記ボイスコイルの上部に連結され、前記ボイスコイルに生じる振動信号が伝達される振動部材と、
    前記振動部材の下部と前記内部フライト又はその周辺部との間に介装されるコイルスプリングと、
    より構成したことを特徴とする骨伝導スピーカー。
    A case body that is open in the vertical direction and has an internal flight of a certain width projecting on the inner peripheral side;
    An iron core disposed at a center position below the internal flight in the case body;
    A ring-shaped magnet arranged outside the iron core;
    A voice coil positioned between the iron core and the magnet;
    A vibration member connected to an upper portion of the voice coil, to which a vibration signal generated in the voice coil is transmitted;
    A coil spring interposed between the lower part of the vibration member and the internal flight or its peripheral part;
    Bone conduction speaker characterized by comprising.
  2. 前記振動部材の下部に、前記ボイスコイルの上端部が係合するボイスコイル取付部と、前記コイルスプリングの上端部が係合するスプリング取付部を設けてなる請求項1記載の骨伝導スピーカー。   The bone conduction speaker according to claim 1, wherein a voice coil attachment portion that engages an upper end portion of the voice coil and a spring attachment portion that engages an upper end portion of the coil spring are provided at a lower portion of the vibration member.
  3. 前記内部フライトの下面と前記マグネットの上面との間に金属リングを介装し、該金属リングの上面で前記コイルスプリングの下端部を支持してなる請求項1又は2記載の骨伝導スピーカー。   The bone conduction speaker according to claim 1 or 2, wherein a metal ring is interposed between a lower surface of the internal flight and an upper surface of the magnet, and a lower end portion of the coil spring is supported on the upper surface of the metal ring.
  4. 前記振動部材を前記ケース本体内周面に連結する可撓性を有する振動板を設けてなる請求項1〜3の何れか1項に記載の骨伝導スピーカー。   The bone conduction speaker according to any one of claims 1 to 3, further comprising a flexible diaphragm that connects the vibration member to the inner peripheral surface of the case body.
  5. 前記ケース本体の上端部に、前記振動部材が通過しうる貫通穴を備えた蓋体を覆設してなる請求項1〜4の何れか1項に記載の骨伝導スピーカー。


    The bone conduction speaker according to any one of claims 1 to 4, wherein a cover body having a through hole through which the vibration member can pass is provided on an upper end portion of the case body.


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CN102497612A (en) * 2011-12-23 2012-06-13 深圳市韶音科技有限公司 Bone conduction speaker and compound vibrating device thereof
KR101250041B1 (en) 2010-12-20 2013-04-02 인지컨트롤스 주식회사 Actuator for vibration
EP2592847A1 (en) * 2011-11-10 2013-05-15 AUE Institute Ltd Opening type bone conduction earphone
WO2019134162A1 (en) * 2018-01-08 2019-07-11 深圳市韶音科技有限公司 Bone conduction loudspeaker
CN110896517A (en) * 2019-10-31 2020-03-20 瑞声科技(新加坡)有限公司 Screen sound production exciter and electronic equipment

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KR101250041B1 (en) 2010-12-20 2013-04-02 인지컨트롤스 주식회사 Actuator for vibration
EP2592847A1 (en) * 2011-11-10 2013-05-15 AUE Institute Ltd Opening type bone conduction earphone
CN102497612A (en) * 2011-12-23 2012-06-13 深圳市韶音科技有限公司 Bone conduction speaker and compound vibrating device thereof
CN102497612B (en) * 2011-12-23 2013-05-29 深圳市韶音科技有限公司 Bone conduction speaker and compound vibrating device thereof
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US10911876B2 (en) 2011-12-23 2021-02-02 Shenzhen Voxtech Co., Ltd. Bone conduction speaker and compound vibration device thereof
WO2019134162A1 (en) * 2018-01-08 2019-07-11 深圳市韶音科技有限公司 Bone conduction loudspeaker
WO2019134387A1 (en) * 2018-01-08 2019-07-11 深圳市韶音科技有限公司 Bone conduction speaker
CN110896517A (en) * 2019-10-31 2020-03-20 瑞声科技(新加坡)有限公司 Screen sound production exciter and electronic equipment

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