JP4112848B2 - Speaker mounting structure for mobile phones - Google Patents

Speaker mounting structure for mobile phones Download PDF

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JP4112848B2
JP4112848B2 JP2001356149A JP2001356149A JP4112848B2 JP 4112848 B2 JP4112848 B2 JP 4112848B2 JP 2001356149 A JP2001356149 A JP 2001356149A JP 2001356149 A JP2001356149 A JP 2001356149A JP 4112848 B2 JP4112848 B2 JP 4112848B2
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speaker
partition
mobile phone
speaker unit
mounting structure
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JP2003158565A (en
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淳二 井内
芳行 安達
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Kenwood KK
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Kenwood KK
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  • Telephone Set Structure (AREA)
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Abstract

PROBLEM TO BE SOLVED: To provide a mount structure of a speaker part of a mobile phone by which a user can hear a ringer tone or the like excellently in a stereophonic sense when twin-speakers are mounted on the structure. SOLUTION: A speaker holder 10 fitted to a rear case 1b1 is configured as explained below. That is, first and second barriers 10a, 10b partitioning first and second speaker parts 7a, 7b are formed to the speaker holder 10 circularly so as to be along with the circumferential directions of the first and second speaker parts 7a, 7b. Further, first and second notches 7a3, 7b3 engaging with the projections 7a1, 7b1 of the first and second speaker parts 7a, 7b are formed to the first and second barriers 10a, 10b. The speaker holder 10 is fitted to the rear cover b1b and the first and second speaker parts 7a, 7b are provided to the inside of the first and second barriers 10a, 10b.

Description

【０００１】
【発明の属する技術分野】
本発明は携帯電話機に係わり、詳細には携帯電話機におけるスピーカ部の取付構造に関する。
【０００２】
【従来の技術】
近年目覚しい勢いで開発されつつある携帯電話機は、その付加機能がますます搭載されつつある。この携帯電話機の筐体内部には、着信音等の音を発生させるスピーカ部が設けられているとともに、筐体にはスピーカ部から発生する音を外部に放出する放音孔が設けられている。
【０００３】
【発明が解決しようとする課題】
しかしながら、従来の携帯電話機においては、音を発生させるスピーカ部は携帯電話機の筐体内部に一つのみ設けられていたためにスピーカ部から発生する音にステレオ効果を得ることができなかったり、もしくは、ツインスピーカが搭載されていても、それぞれのスピーカ部から発生する音どうしが筐体内部で混ざってしまうことによって音がぼやけてしまい、その結果、ツインスピーカによるステレオ効果を十分に得ることができなかったりしていた。
【０００４】
本発明の課題は、ツインスピーカを搭載した場合に、それぞれのスピーカ部から発生する音を、これらが筐体内部で混ざることがないように外部に放出することにより、着信音等をステレオ感覚で良好に聴くことが可能となる、携帯電話機におけるスピーカ部の取付構造を提供することである。
【０００５】
【課題を解決するための手段】
請求項１記載の発明は、筐体内部に第１スピーカ部と第２スピーカ部とが並設して収容された携帯電話機におけるスピーカ部の取付構造であって、
前記筐体には、前記第１スピーカ部と前記第２スピーカ部とを仕切る第１隔壁と第２隔壁とが、それぞれ該第１スピーカ部の周方向と該第２スピーカ部の周方向とに沿って設けられており、
前記第１隔壁の内側に前記第１スピーカ部が設けられているとともに、前記第２隔壁の内側に前記第２スピーカ部が設けられ、
前記第１隔壁には、この第１隔壁の上端から突出する第１突出部が形成されているとともに、前記第２隔壁には、この第２隔壁の上端から突出する第２突出部が形成され、
前記筐体の内部に設けられるプリント基盤が前記第１スピーカ部と前記第２スピーカ部との背面側に取り付けられ、前記第１突出部及び前記第２突出部が前記プリント基盤に当接することによって前記プリント基盤と前記第１スピーカ部との間に隙間が形成されるとともに前記プリント基盤と前記第２スピーカ部との間に隙間が形成されていることを特徴としている。
【０００６】
請求項２記載の発明は、請求項１記載の携帯電話機におけるスピーカ部の取付構造において、
前記第１スピーカ部及び前記第２スピーカ部のそれぞれには板バネ状の電極が設けられ、前記電極が前記プリント基盤に形成された電気回路に当接して前記プリント基盤により押圧されることを特徴としている。
【０００７】
請求項３記載の発明は、請求項１または２記載の携帯電話機におけるスピーカ部の取付構造において、
前記第１隔壁には、前記第１スピーカ部の外周部に係合して該第１スピーカ部の周方向の位置決めを行う第１係合部が形成されているとともに、
前記第２隔壁には、前記第２スピーカ部の外周部に係合して該第２スピーカ部の周方向の位置決めを行う第２係合部が形成されていることを特徴としている。
【０００８】
請求項４記載の発明は、請求項３記載の携帯電話機におけるスピーカ部の取付構造において、
前記第１隔壁の中央部から前記第１係合部に至る方向と、前記第２隔壁の中央部から前記第２係合部に至る方向と、が平行かつ同じ向きであることを特徴としている。
【０００９】
請求項５記載の発明は、請求項１〜４のいずれかに記載の携帯電話機におけるスピーカ部の取付構造において、
前記筐体には、この筐体と別体のスピーカホルダが取り付けられており、
このスピーカホルダが、前記第１隔壁と前記第２隔壁とを備えていることを特徴としている。
【００１０】
【発明の実施の形態】
以下、図１〜図６を参照して、本発明に係る携帯電話機の実施の形態について詳細に説明する。
【００１１】
図１において符号１は、本発明に係る携帯電話機である。
本発明に係る携帯電話機１は、図１、図２に示すように、前面側に操作部２を備える本体１ａと前面側に表示部３を備える蓋体１ｂとが、それぞれの前面側が合わさるようにヒンジ部４を介して折り畳み可能に構成されている。なお、操作部２や表示部３については、周知技術と同様であるので説明を省略する。
なお、図１、図２において、符号５は電波を受信するアンテナであり、必要時に上方に伸張可能に本体１ａに収納されている。また、符号６はカメラのレンズであり、これを被写体に向けてデジタル写真を撮影することができる。
【００１２】
蓋体１ｂには、並設されるようにして、第１スピーカ部７ａと第２スピーカ部７ｂとが設けられている。また、蓋体１ｂの両側部には、第１スピーカ部７ａから発生する音を外部へ放出するための第１放音孔８ａと、第２スピーカ部７ｂから発生する音を外部へ放出するための第２放音孔８ｂと、が水平面に対して所定角度傾斜するようにして設けられている。さらに、蓋体１ｂの背面部には、着信時等に光が放出される、第１放光孔９ａと第２放光孔９ｂとが設けられている。
【００１３】
蓋体１ｂは、前面蓋体と、図３（ａ）に示す背面蓋体１ｂ１とが合わさるようにして形成され、背面蓋体１ｂ１には、スピーカホルダ１０が両面テープによって取り付けられている。スピーカホルダ１０は、円形状の第１隔壁１０ａと第２隔壁１０ｂ、さらに、この第１隔壁１０ａと第２隔壁１０ｂとに接続する第１光ガイド１０ｃと第２光ガイド１０ｄとによって概略構成され、全体が乳白色となっている。第１隔壁１０ａの内側と第２隔壁１０ｂの内側とには、第１スピーカ部７ａと第２スピーカ部７ｂとが設けられる。
【００１４】
スピーカホルダ１０には、図４、図５（ａ）、図５（ｂ）に示すように、側部に切り欠き１０ｅが形成されているとともに、中央部に孔１０ｆが形成されている。そして、切り欠き１０ｅや孔１０ｆと、背面蓋体１ｂ１に形成された図示しない突起とが係合することによって、スピーカホルダ１０の背面蓋体１ｂ１に対する位置が確定するようになっている。
【００１５】
また、スピーカホルダ１０には、第１スピーカ部７ａと第２スピーカ部７ｂとを仕切る第１隔壁１０ａと第２隔壁１０ｂとが、それぞれ第１スピーカ部７ａの周方向と第２スピーカ部７ｂの周方向とに沿って円形状に形成されており、この円形状の第１隔壁１０ａと第２隔壁１０ｂとは部分的に外接している。
【００１６】
円形状の第１隔壁１０ａには、この第１隔壁１０ａの上端から突出する第１突出部１０ａ１が、中央部を挟んで互いに対向する２ヶ所に形成されているとともに、円形状の第２隔壁１０ｂには、この第２隔壁１０ｂの上端から突出する第２突出部１０ｂ１が、中央部を挟んで互いに対向する２ヶ所に形成されている。さらに、第１突出部１０ａ１と第２突出部１０ｂ１の外側には、第１爪１０ａ２と第２爪１０ｂ２が形成されている。
【００１７】
また、円形状の第１隔壁１０ａと第２隔壁１０ｂとには、それぞれ第１切り欠き１０ａ３と第２切り欠き１０ｂ３とが形成されており、これら第１切り欠き１０ａ３と第２切り欠き１０ｂ３とは、第１隔壁１０ａの中央部から第１切り欠き１０ａ３に至る方向と、第２隔壁１０ｂの中央部から第２切り欠き１０ｂ３に至る方向と、が平行かつ同じ向きとなるようにして形成されている。
【００１８】
なお、第１スピーカ部７ａと第２スピーカ部７ｂとは、図６に示すように円盤状であり、外周部には、第１隔壁１０ａに形成された第１切り欠き１０ａ３と第２隔壁１０ｂに形成された第２切り欠き１０ｂ３とに係合する突起７ａ１、７ｂ１が形成されている。また、第１スピーカ部７ａや第２スピーカ部７ｂの内部側には、蓋体１ｂ内部に設けられるプリント基盤１１に形成された電気回路に当接する、板ばね状の電極（７ａ２、７ａ２）、（７ｂ２、７ｂ２）が設けられている。
【００１９】
なお、第１光ガイド１０ｃと第２光ガイド１０ｄとは、プリント基盤１１に設けられる発光ダイオードの光を、第１放光孔９ａと第２放光孔９ｂとに伝達して、第１放光孔９ａと第２放光孔９ｂとから外部に確実に放光させるために、これら第１方光孔９ａと第２放光孔９ｂとの形状に合わせて形成されている。また、図５（ｂ）に示すように、第１光ガイド１０ｃの第１隔壁１０ａとの接続部と第２光ガイド１０の第２隔壁１０ｂとの接続部１０ｃ１（１０ｄ１）においては、背面蓋体１ｂ側が丸みを帯びるように形成されている。この丸みによって、発光ダイオードの光を、第１光ガイド１０ｃが延設されない第１スピーカ部７ａ近傍に位置する第１放光孔９ａ１と、第２光ガイド１０ｄが延設されない第２スピーカ部７ｂ近傍に位置する第２放光孔９ｂ１と、からも確実に放光させることができる。
【００２０】
蓋体１ｂ内部に第１スピーカ部７ａと第２スピーカ部７ｂとを設ける場合には、以下のようにして行う。先ず、スピーカホルダ１０の裏面全周に両面テープを貼り付け、スピーカホルダ１０を背面蓋体１ｂ１に取り付ける。次に、スピーカホルダ１０の第１隔壁１０ａの内側と第２隔壁１０ｂの内側とに、それぞれ第１スピーカ部７ａと第２スピーカ部７ｂとを収容する。この際、第１スピーカ部７ａと第２スピーカ部７ｂとに設けられている突起７ａ１、７ｂ１とが、それぞれ、第１隔壁１０ａに形成された第１切り欠き１０ａ３と第２隔壁１０ｂに形成された第２切り欠き１０ｂ３とに係合するようにする。次に、第１スピーカ部７ａと第２スピーカ部７ｂの背面側から、これら第１スピーカ部７ａと第２スピーカ部７ｂとをスピーカホルダ１０に押え付けるための、図示しないコ字状の押え部材を、その両端部が、第１隔壁に形成された第１爪と第２隔壁に形成された第２爪とに係合するようにして設ける。
【００２１】
その後、第１スピーカ部７ａと第２スピーカ部７ｂとの背面側にプリント基盤１１を取り付ける。この際、プリント基盤１１は、第１隔壁１０ａに形成された第１突出部１０ａ１と第２隔壁１０ｂに形成された第２突出部１０ｂ１とに当接し、かつ、第１スピーカ部７ａと第２スピーカ部７ｂとに設けられた板ばね状の電極（７ａ２、７ａ２）、（７ｂ２、７ｂ２）を押圧するようにして設けられる。この結果、プリント基盤１１と第１スピーカ部７ａや第２スピーカ部７ｂとの間には、図５（ｃ）に示すような隙間１２が形成される。これにより、第１スピーカ部７ａや第２スピーカ部７ｂ周辺部の通気性が確保され、第１スピーカ部７ａや第２スピーカ部７ｂの振動板が振動しやすくなる。
【００２２】
第１スピーカ部７ａと第２スピーカ部７ｂとを蓋体１ｂに取り付けた状態を切断面で見ると、図３（ｂ）のようになる。このように配設された第１スピーカ部７ａと第２スピーカ部７ｂとから、背面蓋体１ｂ１方向に発生した音は、第１放音孔８ａと第２放音孔８ｂとから外部に放出されて放射状に拡散する。この際、第１隔壁１０ａ１と第２隔壁１０ｂ１とによって、第１スピーカ部７ａから発生する音と第２スピーカ部７ｂから発生する音とが、蓋体１ｂ内部に漏れて互いに混ざることが防止される。これにより、ツインスピーカによるステレオ効果を良好に得ることができる。
【００２３】
本実施の形態によれば、以下のような効果を得ることが可能である。
【００２４】
▲１▼背面蓋体１ｂ１には、第１スピーカ部７ａと第２スピーカ部７ｂとを仕切る第１隔壁１０ａと第２隔壁１０ｂとが、それぞれ該第１スピーカ部７ａの周方向と該第２スピーカ部７ｂの周方向とに沿って設けられている。そして、第１隔壁１０ａの内側に第１スピーカ部７ａが設けられているとともに、第２隔壁１０ｂの内側に第２スピーカ部７ｂが設けられている。これにより、第１スピーカ部７ａから発生する音と第２スピーカ部７ｂから発生する音とが、蓋体１ｂ内部に漏れて互いに混ざることが防止される。そして、第１スピーカ部７ａから発生した音と第２スピーカ部７ｂから発生した音とは、蓋体１ｂの両側部に形成された第１放音孔８ａと第２放音孔８ｂとから放出される。したがって、ツインスピーカによるステレオ効果を良好に得て、臨場感のある音を聴くことが可能となる。
【００２５】
▲２▼第１隔壁１０ａには、この第１隔壁１０ａの上端から突出する第１突出部１０ａ１が形成されているとともに、第２隔壁１０ｂには、この第２隔壁１０ｂの上端から突出する第２突出部１０ｂ１が形成されている。これにより、蓋体１ｂ内部に設けられるプリント基盤１１と第１スピーカ部７ａや第２スピーカ部７ｂとの間には隙間１２が形成される。この隙間１２によって、第１スピーカ部７ａと第２スピーカ部７ｂの振動板が振動しやすくなるとともに、第１スピーカ部７ａと第２スピーカ部７ｂとから音が発生した場合には、隙間１２がバックキャビティとして作用する。したがって、第１スピーカ部７ａと第２スピーカ部７ｂとから発生する音の低音領域を強化させながら、さらに臨場感のある音を聴くことが可能となる。
【００２６】
▲３▼第１隔壁１０ａには、第１スピーカ部７ａの外周部に形成された突起７ａ１に係合する第１切り欠き１０ａ２が形成されているとともに、第２隔壁１０ｂには、第２スピーカ部７ｂの外周部に形成された突起７ｂ１に係合する第２切り欠き１０ｂ２が形成されている。そして、第１スピーカ部７ａと第２スピーカ部７ｂとをスピーカホルダ１０に取り付ける際には、第１切り欠き１０ａ２や第２切り欠き１０ｂ２と突起７ａ１、７ｂ１とを係合させることにより容易に位置決めが行われるため、生産性が向上する。
【００２７】
さらに、これらの第１切り欠き１０ａ２と第２切り欠き１０ｂ２とは、第１隔壁１０ａの中央部から第１切り欠き１０ａ２に至る方向と、第２隔壁１０ｂの中央部から第２切り欠き１０ｂ２に至る方向と、が平行かつ同じ向きとなるようにして形成されている。このため、第１隔壁１０ａの内側と第２隔壁１０ｂの内側とにそれぞれ設けられる第１スピーカ部７ａと第２スピーカ部７ｂとを同一とすることができるため、生産コストを低減するともに取付け作業時におけるミスを低減することができる。
【００２８】
▲４▼スピーカホルダ１０は背面蓋体１ｂ１と別体となっており、スピーカホルダ１０を、本実施の形態のように、乳白色の第１光ガイド１０ｃ、第２光ガイド１０ｄと一体に、かつ、乳白色に構成しておくことで、このスピーカホルダ１０は第１光ガイド１０ｃ、第２光ガイド１０ｄの作用を助成する。すなわち、着信等を報知する光等を、第１放光孔９ａと第２放光孔９ｂとから、より良好に放出することができる。
【００２９】
なお、本実施の形態は、種々の設計変更が可能である。
例えば、本実施の形態においては、図３（ａ）等に示すように、背面蓋体１ｂ１に、この背面蓋体１ｂ１と別体のスピーカホルダ１０が取り付けられており、このスピーカホルダ１０が、第１隔壁１０ａと第２隔壁１０ｂとを備えている。しかし例えば、第１隔壁１０ａや第２隔壁１０ｂ等が背面蓋体１ｂ１に一体に形成されていてもよい。この場合においても、前記した本実施の形態における▲１▼〜▲４▼と同様の効果を得ることができることは勿論である。
【００３０】
【発明の効果】
以上、本発明によれば、前記筐体には、前記第１スピーカ部と前記第２スピーカ部とを仕切る第１隔壁と第２隔壁とが、それぞれ該第１スピーカ部の周方向と該第２スピーカ部の周方向とに沿って設けられている。そして、前記第１隔壁の内側に前記第１スピーカ部が設けられているとともに、前記第２隔壁の内側に前記第２スピーカ部が設けられている。これにより、前記第１スピーカ部から発生する音と前記第２スピーカ部から発生する音とが、前記筐体内部に漏れて互いに混ざることが防止される。したがって、ツインスピーカによるステレオ効果を良好に得て、臨場感のある音を聴くことが可能となる。
【００３１】
【図面の簡単な説明】
【図１】開かれた状態の、本発明に係る携帯電話機を示す、（ａ）は正面図、（ｂ）は側面図である。
【図２】折り畳まれた状態の、本発明に係る携帯電話機を示す、（ａ）は正面図、（ｂ）は側面図である。
【図３】本発明に係る携帯電話機において、（ａ）は蓋体に取り付けられているスピーカホルダを示す図であり、（ｂ）は蓋体内部に収容された第１スピーカ部と第２スピーカ部とを示す図である。
【図４】本発明に係る携帯電話機のスピーカホルダを示す図である。
【図５】本発明に係る携帯電話機のスピーカホルダの、（ａ）は平面図、（ｂ）は側面図、（ｃ）はプリント基盤を含む断面図である。
【図６】本発明に係る携帯電話機における第１スピーカ部と第２スピーカ部の、（ａ）は平面図、（ｂ）はスピーカホルダを含む断面図である。
【符号の説明】
１ 携帯電話機
１ａ 本体
１ｂ 蓋体
１ｂ１ 背面蓋体
２ 操作部
３ 表示部
４ ヒンジ部
７ａ 第１スピーカ部
７ｂ 第２スピーカ部
８ａ 第１放音孔
８ｂ 第２放音孔
１０ スピーカホルダ
１０ａ 第１隔壁
１０ａ１ 第１突出部
１０ａ３ 第１切り欠き
１０ｂ 第２隔壁
１０ｂ１ 第２突出部
１０ｂ３ 第２切り欠き
１２ 隙間[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mobile phone, and more particularly to a mounting structure for a speaker portion in a mobile phone.
[0002]
[Prior art]
In recent years, mobile phones that are being developed with remarkable momentum are increasingly equipped with additional functions. A speaker unit that generates a sound such as a ring tone is provided inside the casing of the mobile phone, and a sound emitting hole that releases sound generated from the speaker unit to the outside is provided in the casing. .
[0003]
[Problems to be solved by the invention]
However, in the conventional mobile phone, since only one speaker unit that generates sound is provided inside the casing of the mobile phone, the stereo effect cannot be obtained in the sound generated from the speaker unit, or Even if twin speakers are installed, the sound is blurred by mixing the sound generated from each speaker section inside the housing, and as a result, the stereo effect by the twin speakers cannot be obtained sufficiently. I was doing.
[0004]
The problem of the present invention is that when a twin speaker is mounted, the sound generated from each speaker unit is released to the outside so that they are not mixed inside the housing, thereby making it possible to make ringtones etc. in a stereo sense. An object of the present invention is to provide an attachment structure for a speaker portion in a mobile phone that enables good listening.
[0005]
[Means for Solving the Problems]
The invention according to claim 1 is a mounting structure of a speaker unit in a mobile phone in which a first speaker unit and a second speaker unit are accommodated in a housing.
The casing includes a first partition wall and a second partition wall that partition the first speaker section and the second speaker section in a circumferential direction of the first speaker section and a circumferential direction of the second speaker section, respectively. Along the line,
The first speaker unit is provided inside the first partition, and the second speaker unit is provided inside the second partition,
The first barrier rib is formed with a first protrusion protruding from the upper end of the first barrier rib, and the second barrier rib is formed with a second protrusion protruding from the upper end of the second barrier rib. ,
A printed circuit board provided in the housing is attached to the back side of the first speaker unit and the second speaker unit, and the first projecting part and the second projecting part are in contact with the print circuit board. A gap is formed between the printed board and the first speaker unit, and a gap is formed between the printed board and the second speaker unit .
[0006]
The invention according to claim 2 is the mounting structure of the speaker portion in the mobile phone according to claim 1,
Each of the first speaker unit and the second speaker unit is provided with a leaf spring-like electrode, and the electrode contacts an electric circuit formed on the printed circuit board and is pressed by the printed circuit board. It is said.
[0007]
The invention according to claim 3 is the mounting structure of the speaker portion in the mobile phone according to claim 1 or 2,
The first partition is formed with a first engaging portion that engages with an outer peripheral portion of the first speaker portion and positions the first speaker portion in a circumferential direction.
The second partition wall is formed with a second engaging portion that engages with an outer peripheral portion of the second speaker portion and positions the second speaker portion in a circumferential direction.
[0008]
According to a fourth aspect of the present invention, there is provided a speaker portion mounting structure in the mobile phone according to the third aspect.
The direction from the central part of the first partition to the first engaging part and the direction from the central part of the second partition to the second engaging part are parallel and in the same direction. .
[0009]
The invention according to claim 5 is the mounting structure of the speaker portion in the mobile phone according to any one of claims 1 to 4,
A speaker holder that is separate from the case is attached to the case,
The speaker holder includes the first partition and the second partition.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a mobile phone according to the present invention will be described in detail with reference to FIGS.
[0011]
In FIG. 1, reference numeral 1 denotes a mobile phone according to the present invention.
As shown in FIGS. 1 and 2, the mobile phone 1 according to the present invention has a main body 1 a having an operation unit 2 on the front side and a lid 1 b having a display unit 3 on the front side so that the front sides thereof are aligned. It is configured to be foldable via the hinge portion 4. Note that the operation unit 2 and the display unit 3 are the same as in the well-known technique, and thus the description thereof is omitted.
In FIGS. 1 and 2, reference numeral 5 denotes an antenna that receives radio waves, and is housed in the main body 1a so as to extend upward when necessary. Reference numeral 6 denotes a camera lens, which can be pointed at a subject to take a digital photograph.
[0012]
The lid 1b is provided with a first speaker portion 7a and a second speaker portion 7b so as to be juxtaposed. Moreover, in order to discharge | release the sound which generate | occur | produces from the 1st sound emission hole 8a for discharging | emitting the sound which generate | occur | produces from the 1st speaker part 7a outside, and the 2nd speaker part 7b in the both sides of the cover body 1b. The second sound emitting hole 8b is provided so as to be inclined at a predetermined angle with respect to the horizontal plane. Furthermore, a first light emitting hole 9a and a second light emitting hole 9b through which light is emitted when an incoming call is received are provided on the back surface of the lid 1b.
[0013]
The lid 1b is formed so that the front lid and the back lid 1b1 shown in FIG. 3A are combined, and the speaker holder 10 is attached to the back lid 1b1 by a double-sided tape. The speaker holder 10 is roughly constituted by a circular first partition 10a and a second partition 10b, and a first light guide 10c and a second light guide 10d connected to the first partition 10a and the second partition 10b. The whole is milky white. A first speaker portion 7a and a second speaker portion 7b are provided inside the first partition 10a and inside the second partition 10b .
[0014]
As shown in FIGS. 4, 5 (a), and 5 (b), the speaker holder 10 has a notch 10 e at the side and a hole 10 f at the center. The positions of the speaker holder 10 relative to the back cover 1b1 are determined by engaging the notches 10e and the holes 10f with projections (not shown) formed on the back cover 1b1.
[0015]
The speaker holder 10 includes a first partition wall 10a and a second partition wall 10b that partition the first speaker section 7a and the second speaker section 7b, respectively, in the circumferential direction of the first speaker section 7a and the second speaker section 7b. A circular shape is formed along the circumferential direction, and the circular first partition wall 10a and the second partition wall 10b are partially circumscribed.
[0016]
In the circular first partition 10a, first protrusions 10a1 projecting from the upper end of the first partition 10a are formed at two positions facing each other across the central portion, and the circular second partition 10a. In 10b, a second protruding portion 10b1 protruding from the upper end of the second partition wall 10b is formed at two locations facing each other across the central portion. Furthermore, the 1st nail | claw 10a2 and the 2nd nail | claw 10b2 are formed in the outer side of the 1st protrusion part 10a1 and the 2nd protrusion part 10b1.
[0017]
In addition, a first notch 10a3 and a second notch 10b3 are formed in the circular first partition 10a and the second partition 10b, respectively. The first notch 10a3 and the second notch 10b3 Is formed such that the direction from the center of the first partition 10a to the first notch 10a3 and the direction from the center of the second partition 10b to the second notch 10b3 are parallel and in the same direction. ing.
[0018]
The first speaker portion 7a and the second speaker portion 7b are disk-shaped as shown in FIG. 6, and the first notch 10a3 and the second partition wall 10b formed in the first partition wall 10a are provided on the outer periphery. Protrusions 7a1 and 7b1 are formed to engage with the second notch 10b3 formed in the. Further, on the inner side of the first speaker unit 7a and the second speaker unit 7b, leaf spring-like electrodes (7a2, 7a2) that contact an electric circuit formed on the printed board 11 provided inside the lid 1b, (7b2, 7b2) are provided.
[0019]
The first light guide 10c and the second light guide 10d transmit the light of the light emitting diode provided on the printed circuit board 11 to the first light emission hole 9a and the second light emission hole 9b, and thereby the first light emission. In order to reliably emit light from the light hole 9a and the second light emission hole 9b to the outside, the light holes 9a and the second light emission holes 9b are formed in accordance with the shapes. Further, as shown in FIG. 5 (b), a back cover is formed at the connection portion 10c1 (10d1) between the connection portion of the first light guide 10c with the first partition wall 10a and the second partition wall 10b of the second light guide 10. The body 1b side is formed to be rounded. Due to this roundness, the light from the light emitting diodes is emitted from the first light emitting hole 9a1 located in the vicinity of the first speaker portion 7a where the first light guide 10c does not extend, and the second speaker portion 7b where the second light guide 10d does not extend. The light can be reliably emitted from the second light emitting hole 9b1 located in the vicinity.
[0020]
When providing the 1st speaker part 7a and the 2nd speaker part 7b in the inside of the cover body 1b, it carries out as follows. First, a double-sided tape is affixed to the entire back surface of the speaker holder 10, and the speaker holder 10 is attached to the back cover 1b1. Next, the first speaker portion 7a and the second speaker portion 7b are accommodated inside the first partition wall 10a and the second partition wall 10b of the speaker holder 10, respectively. At this time, projections 7a1 and 7b1 provided on the first speaker portion 7a and the second speaker portion 7b are respectively formed on the first notch 10a3 and the second partition wall 10b formed on the first partition wall 10a. The second notch 10b3 is engaged. Next, a U-shaped pressing member (not shown) for pressing the first speaker unit 7a and the second speaker unit 7b against the speaker holder 10 from the back side of the first speaker unit 7a and the second speaker unit 7b. Are provided so that both end portions thereof engage with a first claw formed on the first partition and a second claw formed on the second partition.
[0021]
Thereafter, the printed board 11 is attached to the back side of the first speaker unit 7a and the second speaker unit 7b. At this time, the printed circuit board 11 contacts the first protrusion 10a1 formed on the first partition 10a and the second protrusion 10b1 formed on the second partition 10b, and the first speaker 7a and the second speaker 10a. It is provided so as to press the leaf spring-like electrodes (7a2, 7a2), (7b2, 7b2) provided on the speaker portion 7b. As a result, a gap 12 as shown in FIG. 5C is formed between the printed board 11 and the first speaker unit 7a or the second speaker unit 7b. Thereby, the air permeability around the first speaker unit 7a and the second speaker unit 7b is ensured, and the diaphragms of the first speaker unit 7a and the second speaker unit 7b are likely to vibrate.
[0022]
FIG. 3B shows a state in which the first speaker portion 7a and the second speaker portion 7b are attached to the lid 1b when viewed from the cut surface. The sound generated in the direction of the back cover 1b1 from the first speaker portion 7a and the second speaker portion 7b arranged in this manner is emitted to the outside from the first sound emitting hole 8a and the second sound emitting hole 8b. Diffused radially. At this time, the first partition wall 10a1 and the second partition wall 10b1 prevent the sound generated from the first speaker unit 7a and the sound generated from the second speaker unit 7b from leaking into the lid 1b and mixing with each other. The Thereby, the stereo effect by a twin speaker can be acquired favorably.
[0023]
According to the present embodiment, the following effects can be obtained.
[0024]
(1) The back cover 1b1 includes a first partition wall 10a and a second partition wall 10b that partition the first speaker section 7a and the second speaker section 7b, respectively, in the circumferential direction of the first speaker section 7a and the second partition wall 10b. It is provided along the circumferential direction of the speaker unit 7b. The first speaker unit 7a is provided inside the first partition 10a, and the second speaker unit 7b is provided inside the second partition 10b. This prevents the sound generated from the first speaker unit 7a and the sound generated from the second speaker unit 7b from leaking into the lid 1b and mixing with each other. The sound generated from the first speaker unit 7a and the sound generated from the second speaker unit 7b are emitted from the first sound emitting hole 8a and the second sound emitting hole 8b formed on both sides of the lid 1b. Is done. Therefore, the stereo effect by the twin speakers can be obtained satisfactorily and it is possible to listen to sounds with a sense of presence.
[0025]
(2) The first partition 10a is formed with a first projecting portion 10a1 projecting from the upper end of the first partition 10a, and the second partition 10b has a first projecting portion projecting from the upper end of the second partition 10b. Two protruding portions 10b1 are formed. Thereby, a gap 12 is formed between the printed board 11 provided in the lid 1b and the first speaker unit 7a and the second speaker unit 7b. The gap 12 makes it easier for the diaphragms of the first speaker unit 7a and the second speaker unit 7b to vibrate, and when sound is generated from the first speaker unit 7a and the second speaker unit 7b, the gap 12 is formed. Acts as a back cavity. Therefore, it is possible to listen to a more realistic sound while enhancing the bass region of the sound generated from the first speaker unit 7a and the second speaker unit 7b.
[0026]
(3) The first partition wall 10a is formed with a first notch 10a2 that engages with a protrusion 7a1 formed on the outer periphery of the first speaker portion 7a, and the second partition wall 10b has a second speaker. A second notch 10b2 that engages with the protrusion 7b1 formed on the outer peripheral portion of the portion 7b is formed. And when attaching the 1st speaker part 7a and the 2nd speaker part 7b to the speaker holder 10, it positions easily by engaging 1st notch 10a2 or 2nd notch 10b2, and protrusion 7a1, 7b1. As a result, productivity is improved.
[0027]
Further, the first notch 10a2 and the second notch 10b2 are formed in the direction from the center of the first partition 10a to the first notch 10a2 and from the center of the second partition 10b to the second notch 10b2. Are formed in parallel and in the same direction. For this reason, since the 1st speaker part 7a and the 2nd speaker part 7b which are each provided in the inner side of the 1st partition 10a and the 2nd partition 10b can be made the same, a production cost is reduced and attachment work is carried out. Mistakes in time can be reduced.
[0028]
(4) The speaker holder 10 is separate from the back cover 1b1, and the speaker holder 10 is integrated with the milky white first light guide 10c and the second light guide 10d as in the present embodiment, and The speaker holder 10 assists the action of the first light guide 10c and the second light guide 10d by being configured to be milky white. That is, the light etc. which alert | reports an incoming call etc. can be more favorably emitted from the 1st light emission hole 9a and the 2nd light emission hole 9b.
[0029]
Note that various design changes can be made in the present embodiment.
For example, in the present embodiment, as shown in FIG. 3A and the like, a speaker holder 10 that is separate from the back cover 1b1 is attached to the back cover 1b1, and the speaker holder 10 is A first partition 10a and a second partition 10b are provided. However, for example, the first partition 10a, the second partition 10b, and the like may be formed integrally with the back cover 1b1. Even in this case, it is needless to say that the same effects as those of (1) to (4) in the present embodiment can be obtained.
[0030]
【The invention's effect】
As described above, according to the present invention, the casing includes the first partition wall and the second partition wall that partition the first speaker unit and the second speaker unit, respectively, and the circumferential direction of the first speaker unit and the second partition wall. 2 is provided along the circumferential direction of the speaker unit. The first speaker unit is provided inside the first partition, and the second speaker unit is provided inside the second partition. Thereby, it is possible to prevent the sound generated from the first speaker unit and the sound generated from the second speaker unit from leaking into the housing and mixing with each other. Therefore, the stereo effect by the twin speakers can be obtained satisfactorily and it is possible to listen to sounds with a sense of presence.
[0031]
[Brief description of the drawings]
1A and 1B show a mobile phone according to the present invention in an opened state, in which FIG. 1A is a front view and FIG. 1B is a side view;
FIGS. 2A and 2B show a cellular phone according to the present invention in a folded state, where FIG. 2A is a front view and FIG. 2B is a side view;
3A is a diagram showing a speaker holder attached to a lid body in the mobile phone according to the present invention, and FIG. 3B is a diagram showing a first speaker unit and a second speaker housed inside the lid body; FIG.
FIG. 4 is a diagram showing a speaker holder of the mobile phone according to the present invention.
5A is a plan view, FIG. 5B is a side view, and FIG. 5C is a cross-sectional view including a printed circuit board of the speaker holder of the mobile phone according to the present invention.
6A is a plan view of a first speaker portion and a second speaker portion in a mobile phone according to the present invention, and FIG. 6B is a cross-sectional view including a speaker holder.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Mobile telephone 1a Main body 1b Cover 1b1 Back cover 2 Operation part 3 Display part 4 Hinge part 7a 1st speaker part 7b 2nd speaker part 8a 1st sound emission hole 8b 2nd sound emission hole 10 Speaker holder 10a 1st partition 10a1 1st protrusion part 10a3 1st notch 10b 2nd partition 10b1 2nd protrusion part 10b3 2nd notch 12 Crevice

Claims (5)

筐体内部に第１スピーカ部と第２スピーカ部とが並設して収容された携帯電話機におけるスピーカ部の取付構造であって、
前記筐体には、前記第１スピーカ部と前記第２スピーカ部とを仕切る第１隔壁と第２隔壁とが、それぞれ該第１スピーカ部の周方向と該第２スピーカ部の周方向とに沿って設けられており、
前記第１隔壁の内側に前記第１スピーカ部が設けられているとともに、前記第２隔壁の内側に前記第２スピーカ部が設けられ、
前記第１隔壁には、この第１隔壁の上端から突出する第１突出部が形成されているとともに、前記第２隔壁には、この第２隔壁の上端から突出する第２突出部が形成され、
前記筐体の内部に設けられるプリント基盤が前記第１スピーカ部と前記第２スピーカ部との背面側に取り付けられ、
前記第１突出部及び前記第２突出部が前記プリント基盤に当接することによって前記プリント基盤と前記第１スピーカ部との間に隙間が形成されるとともに前記プリント基盤と前記第２スピーカ部との間に隙間が形成されていることを特徴とする携帯電話機におけるスピーカ部の取付構造。An attachment structure of a speaker unit in a mobile phone in which a first speaker unit and a second speaker unit are accommodated side by side in a housing,
The casing includes a first partition wall and a second partition wall that partition the first speaker section and the second speaker section in a circumferential direction of the first speaker section and a circumferential direction of the second speaker section, respectively. Along the line,
The first speaker unit is provided inside the first partition, and the second speaker unit is provided inside the second partition,
The first barrier rib is formed with a first protrusion protruding from the upper end of the first barrier rib, and the second barrier rib is formed with a second protrusion protruding from the upper end of the second barrier rib. ,
A printed circuit board provided inside the housing is attached to the back side of the first speaker unit and the second speaker unit,
The first projecting portion and the second projecting portion are in contact with the print substrate, so that a gap is formed between the print substrate and the first speaker unit, and the print substrate and the second speaker unit are separated from each other. A mounting structure for a speaker portion in a mobile phone, characterized in that a gap is formed therebetween . 請求項１記載の携帯電話機におけるスピーカ部の取付構造において、
前記第１スピーカ部及び前記第２スピーカ部のそれぞれには板バネ状の電極が設けられ、前記電極が前記プリント基盤に形成された電気回路に当接して前記プリント基盤により押圧されることを特徴とする携帯電話機におけるスピーカ部の取付構造。In the mounting structure of the speaker part in the mobile phone according to claim 1,
Each of the first speaker unit and the second speaker unit is provided with a leaf spring-like electrode, and the electrode contacts an electric circuit formed on the printed circuit board and is pressed by the printed circuit board. The mounting structure of the speaker part in the mobile phone. 請求項１または２記載の携帯電話機におけるスピーカ部の取付構造において、
前記第１隔壁には、前記第１スピーカ部の外周部に係合して該第１スピーカ部の周方向の位置決めを行う第１係合部が形成されているとともに、
前記第２隔壁には、前記第２スピーカ部の外周部に係合して該第２スピーカ部の周方向の位置決めを行う第２係合部が形成されていることを特徴とする携帯電話機におけるスピーカ部の取付構造。In the mounting structure of the speaker part in the mobile phone according to claim 1 or 2,
The first partition is formed with a first engaging portion that engages with an outer peripheral portion of the first speaker portion and positions the first speaker portion in a circumferential direction.
In the mobile phone, the second partition wall may be formed with a second engaging portion that engages with an outer peripheral portion of the second speaker portion to position the second speaker portion in a circumferential direction. Speaker part mounting structure. 請求項３記載の携帯電話機におけるスピーカ部の取付構造において、
前記第１隔壁の中央部から前記第１係合部に至る方向と、前記第２隔壁の中央部から前記第２係合部に至る方向と、が平行かつ同じ向きであることを特徴とする携帯電話機におけるスピーカ部の取付構造。In the speaker part mounting structure in the mobile phone according to claim 3,
The direction from the central portion of the first partition to the first engagement portion and the direction from the central portion of the second partition to the second engagement portion are parallel and in the same direction. Attachment structure of a speaker portion in a mobile phone. 請求項１〜４のいずれかに記載の携帯電話機におけるスピーカ部の取付構造において、
前記筐体には、この筐体と別体のスピーカホルダが取り付けられており、
このスピーカホルダが、前記第１隔壁と前記第２隔壁とを備えていることを特徴とする携帯電話機におけるスピーカ部の取付構造。In the mounting structure of the speaker part in the mobile phone according to any one of claims 1 to 4,
A speaker holder that is separate from the case is attached to the case,
This speaker holder includes the first partition and the second partition, and a speaker part mounting structure in a mobile phone.
JP2001356149A 2001-11-21 2001-11-21 Speaker mounting structure for mobile phones Expired - Lifetime JP4112848B2 (en)

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Publication number Priority date Publication date Assignee Title
US7069061B2 (en) 2003-07-18 2006-06-27 Sony Ericsson Mobile Communications Ab Speaker assemblies and mobile terminals including the same
JPWO2005062672A1 (en) * 2003-12-24 2007-07-19 三菱電機株式会社 Sound signal reproduction method
JP4541171B2 (en) * 2005-01-28 2010-09-08 京セラ株式会社 Electronics
KR100674849B1 (en) * 2005-04-26 2007-01-26 삼성전기주식회사 An actuator module of wireless communication terminalas
GB2428531A (en) * 2005-07-19 2007-01-31 Sonaptic Ltd Loudspeaker mounting and enclosure arrangements
KR100645530B1 (en) 2005-07-28 2006-11-14 삼성전자주식회사 Stereo speaker equipment having acoustic filter for improving low frequency property
JP4853029B2 (en) * 2006-01-20 2012-01-11 日本電気株式会社 Portable terminal, speaker, and speaker mounting structure for portable terminal
WO2008015901A1 (en) * 2006-08-03 2008-02-07 Nec Corporation Portable terminal device and housing for portable terminal device
JP2012100049A (en) * 2010-11-01 2012-05-24 Nec Casio Mobile Communications Ltd Electronic apparatus and electro-acoustic transducer
JP6283505B2 (en) * 2013-11-25 2018-02-21 京セラ株式会社 Mobile device
JP6193743B2 (en) 2013-11-25 2017-09-06 京セラ株式会社 Mobile device
CN111107469A (en) * 2020-01-03 2020-05-05 深圳市星科启电子商务有限公司 Double movable ring unit integrated loudspeaker unit

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