JP2006203413A - Electronic apparatus - Google Patents

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JP2006203413A
JP2006203413A JP2005011330A JP2005011330A JP2006203413A JP 2006203413 A JP2006203413 A JP 2006203413A JP 2005011330 A JP2005011330 A JP 2005011330A JP 2005011330 A JP2005011330 A JP 2005011330A JP 2006203413 A JP2006203413 A JP 2006203413A
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housing
electroacoustic transducer
positioning member
holding portion
disposed
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JP2005011330A
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JP4606886B2 (en
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Kenichi Ozasa
健一 尾笹
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Kyocera Corp
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Kyocera Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic apparatus that can be reduced in size, without relying on the size reduction of its electronic components. <P>SOLUTION: The electronic apparatus includes a housing; a key operation section 11 arranged inside the housing; an electroacoustic transducer 13; and a holding section 27 for accommodating the electroacoustic transducer 13. The key operation section 11 includes a positioning member 25 of an elastically deformable substantially rectangular plate shape; and a plurality of operation keys 10, disposed to a front side 25a of the positioning member 25 and exposed to a front side 2c of the housing. The holding section 27 is connected to the circumferential edge of the front side 25a of the positioning member 25 and formed to communicatively connect at least part of a sound hole 13b, provided to one end face 13a of the electroacoustic transducer 13 to the exterior of the housing, and part of the one-end face 13a of the electroacoustic transducer 13 is arranged overlapping with the operation keys 10 in the thickness direction of the housing, while the electroacoustic transducer 13 is contained in the holding section 27. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は、筐体内部にキー操作部及び電気音響変換器を備えた電子機器に関する。   The present invention relates to an electronic device including a key operation unit and an electroacoustic transducer inside a casing.

従来、電子機器には、筐体内部に配された回路基板の表面にマイクロフォン等の電気音響変換器を搭載したもの(例えば、特許文献1参照。)や、キー操作部から離れた位置に電気音響変換器を配したものがある。この種の電子機器、特に、携帯電話機、PDA(Personal Digital Assistants)、デジタルカメラ、デジタルビデオカメラ、ノート型パーソナルコンピュータ等の携行可能な携帯電子機器では、その小型化や薄型化が求められている。
特開平4−61991号公報
2. Description of the Related Art Conventionally, in electronic devices, an electroacoustic transducer such as a microphone is mounted on the surface of a circuit board disposed inside a housing (for example, refer to Patent Document 1), or an electric device is electrically connected to a position away from a key operation unit. Some have acoustic transducers. Portable electronic devices such as mobile phones, PDAs (Personal Digital Assistants), digital cameras, digital video cameras, notebook personal computers, and the like are required to be small and thin. .
JP-A-4-61991

しかしながら、上記従来の電子機器では、電気音響変換器をキー操作部から離れた位置に配していたため、電子機器の小型化を図る際には電気音響変換器の小型化や薄型化が不可欠となり、その改善は困難であるという問題があった。
この発明は、上述した事情に鑑みてなされたものであって、電子部品の小型化や薄型化に頼ることなく、電子機器の小型化を図ることができる電子機器を提供することを目的としている。
However, in the above-described conventional electronic device, since the electroacoustic transducer is arranged at a position away from the key operation unit, it is indispensable to reduce the size and thickness of the electroacoustic transducer when miniaturizing the electronic device. There was a problem that the improvement was difficult.
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide an electronic device that can reduce the size of the electronic device without depending on the reduction in size and thickness of the electronic component. .

上記課題を解決するために、この発明は以下の手段を提案している。
本発明に係る電子機器は、筐体と、筐体の内部に配されるキー操作部、電気音響変換器及び該電気音響変換器を収容する保持部とを備え、前記キー操作部が、弾性変形可能な略矩形板状の位置決め部材と、該位置決め部材の表面に配されると共に、前記筐体の表面側に露出する複数の操作キーとを備え、前記保持部が、前記位置決め部材の表面の周縁部に連結されると共に、前記電気音響変換器の一端面に設けられた音孔の少なくとも一部を前記筐体の外方に連通させるように形成され、前記電気音響変換器が前記保持部に収容された状態において、前記電気音響変換器の一端面の一部が前記筐体の厚さ方向に前記操作キーと重ねて配されることを特徴とする。
なお、電気音響変換器とは、外方から音孔に到達した音響を電気信号に変更するマイクロフォン部や、電子信号を音響に変換して、該音響を音孔から外方に放出するスピーカ部を示している。
In order to solve the above problems, the present invention proposes the following means.
An electronic apparatus according to the present invention includes a housing, a key operation unit disposed in the housing, an electroacoustic transducer, and a holding unit that accommodates the electroacoustic transducer, and the key operation unit is elastic. A substantially rectangular plate-shaped positioning member that is deformable, and a plurality of operation keys that are arranged on a surface of the positioning member and exposed on a surface side of the housing, wherein the holding portion is a surface of the positioning member And at least part of a sound hole provided on one end surface of the electroacoustic transducer is connected to the outside of the housing, and the electroacoustic transducer is held by the holding unit. In the state accommodated in the part, a part of one end face of the electroacoustic transducer is arranged to overlap the operation key in the thickness direction of the casing.
The electroacoustic transducer is a microphone unit that changes the sound that has reached the sound hole from the outside into an electric signal, or a speaker unit that converts an electronic signal into sound and emits the sound from the sound hole to the outside. Is shown.

また、本発明に係る電子機器は、前記一端面のうち、少なくとも前記音孔の形成領域の中央部分が前記操作キーにより覆い隠されないように配置されていることを特徴とする。
さらに、本発明に係る電子機器は、前記電気音響変換器が、前記音孔を前記位置決め部材により覆い隠さないように配置されていることを特徴とする。
Moreover, the electronic device according to the present invention is characterized in that at least a central portion of the sound hole forming region of the one end surface is arranged so as not to be covered by the operation key.
Furthermore, the electronic apparatus according to the present invention is characterized in that the electroacoustic transducer is disposed so as not to cover the sound hole with the positioning member.

また、本発明に係る電子機器は、前記保持部が、弾性変形可能な樹脂材料から形成されると共に、前記電気音響変換器を収容する凹部を有し、前記凹部を構成する底壁部に、その厚さ方向に貫通して前記音孔を露出させる貫通孔が形成され、前記保持部が、前記底壁部を前記筐体の内面に当接させて配されることを特徴とする。
さらに、本発明に係る電子機器は、前記保持部の周縁から前記位置決め部材の表面に沿う方向に一体的に延びる略板状のリブを備えることを特徴とする。
Further, in the electronic apparatus according to the present invention, the holding portion is formed of an elastically deformable resin material, and has a concave portion that accommodates the electroacoustic transducer, and a bottom wall portion that constitutes the concave portion has A through hole that penetrates in the thickness direction to expose the sound hole is formed, and the holding portion is disposed with the bottom wall portion in contact with an inner surface of the housing.
Furthermore, the electronic device according to the present invention includes a substantially plate-like rib that integrally extends in a direction along the surface of the positioning member from the periphery of the holding portion.

また、本発明に係る電子機器は、前記リブが、前記保持部と共に前記位置決め部材の表面の周縁部に連結されることを特徴とする。
さらに、本発明に係る電子機器は、前記筐体内部に固定され、前記位置決め部材の筐体内部側に配して前記位置決め部材を支持する略板状の支持部材を備え、該支持部材に、前記保持部及び前記電気音響変換器を前記支持部材の厚さ方向に挿通させる切欠部が形成されていることを特徴とする。
Moreover, the electronic device according to the present invention is characterized in that the rib is connected to a peripheral portion of the surface of the positioning member together with the holding portion.
Furthermore, an electronic apparatus according to the present invention includes a substantially plate-like support member that is fixed inside the housing and is disposed on the inside of the housing of the positioning member to support the positioning member. A notch for inserting the holding portion and the electroacoustic transducer in the thickness direction of the support member is formed.

また、本発明に係る電子機器は、前記位置決め部材の筐体内部側に配されると共に、前記一端面とは反対側に位置する前記電気音響変換器の他端面に対向配置される回路基板と、前記電気音響変換器と前記回路基板との間に配され、前記電気音響変換器及び前記回路基板を相互に電気的に接続する弾性変形可能なバネ部材とを備えることを特徴とする。
さらに、本発明に係る電子機器は、前記操作キーに、大きさの異なる文字、数字、図形等の各種記号を形成した複数の記号形成領域が形成され、該記号形成領域は前記操作キーの厚さ方向に光が透過可能に形成され、前記位置決め部材のうち、小さい各種記号を形成した前記記号形成領域と前記厚さ方向に重なる領域が、他の領域よりも薄く形成されていることを特徴とする。
In addition, an electronic device according to the present invention is disposed on the inside of the casing of the positioning member, and a circuit board disposed opposite to the other end surface of the electroacoustic transducer located on the side opposite to the one end surface And an elastically deformable spring member disposed between the electroacoustic transducer and the circuit board and electrically connecting the electroacoustic transducer and the circuit board to each other.
Furthermore, in the electronic device according to the present invention, a plurality of symbol forming areas in which various symbols such as letters, numbers, and figures having different sizes are formed are formed on the operation keys, and the symbol forming areas have a thickness of the operation keys. It is formed so that light can be transmitted in the vertical direction, and among the positioning members, the symbol forming region where various small symbols are formed and the region overlapping the thickness direction are formed thinner than other regions. And

この発明によれば、電気音響変換器の一端面の一部を位置決め部材の厚さ方向に重ねるため、すなわち、電気音響変換器がキー操作部に近接して配することができるため、電気音響変換器の小型化を行うことなく、電子機器の小型化を図ることができる。   According to the present invention, a part of one end face of the electroacoustic transducer is overlapped in the thickness direction of the positioning member, that is, the electroacoustic transducer can be arranged close to the key operation unit. The electronic device can be downsized without downsizing the converter.

図1から図6は本発明に係る一実施形態を示しており、ここで説明する実施の形態は、この発明を携帯電話機に適用した場合のものである。
図1に示すように、この実施の形態に係る携帯電話機(電子機器)1は、第1の筐体2と、この第1の筐体2の厚さ方向に重ね合わせ可能な第2の筐体3と、これら2つの筐体2,3を相互に折り畳み自在に連結するヒンジ部5とを備えている。なお、ヒンジ部5は、2つの筐体2,3の各端部2a,3a(以下、基端部2a,3aと呼ぶ。)同士を連結するように配されている。
1 to 6 show one embodiment according to the present invention, and the embodiment described here is a case where the present invention is applied to a mobile phone.
As shown in FIG. 1, a mobile phone (electronic device) 1 according to this embodiment includes a first housing 2 and a second housing that can be overlapped in the thickness direction of the first housing 2. A body 3 and a hinge portion 5 that foldably connects the two casings 2 and 3 to each other are provided. In addition, the hinge part 5 is distribute | arranged so that each edge part 2a, 3a (henceforth base end part 2a, 3a) of the two housing | casing 2 and 3 may be connected.

第2の筐体3の内部には、LCD(Liquid Crystal Display)等、表面に各種情報を表示する表示面7aを有する表示部7及び通話用のスピーカ部9が設けられている。表示部7の表示面7aは、2つの筐体2,3を相互に重ね合わせた状態において第1の筐体2に対向する第2の筐体3の対向面3c側に露出している。スピーカ部9は、基端部3aとは反対側に位置する第2の筐体3の先端部3bに配されており、第2の筐体3の対向面3cから第2の筐体3の内部空間に貫通する開口部3dを介して外方に露出している。   Inside the second housing 3, a display unit 7 having a display surface 7a for displaying various information on the surface, such as an LCD (Liquid Crystal Display), and a speaker unit 9 for calling are provided. The display surface 7a of the display unit 7 is exposed on the facing surface 3c side of the second housing 3 facing the first housing 2 in a state where the two housings 2 and 3 are overlapped with each other. The speaker unit 9 is disposed on the distal end portion 3b of the second housing 3 located on the opposite side to the base end portion 3a, and from the facing surface 3c of the second housing 3 to the second housing 3. It is exposed to the outside through an opening 3d that penetrates the internal space.

第1の筐体2の内部には、通話キー、終話キー等の各種の押圧可能な操作キー10を備えたキー操作部11及び通話用のマイクロフォン部(電気音響変換器)13が設けられている。キー操作部11の各操作キー10は、2つの筐体2,3を相互に重ね合わせた状態において第2の筐体3に対向する第1の筐体2の対向面(表面)2cから外方に露出している。マイクロフォン部13は、基端部2aとは反対側に位置する第1の筐体2の先端部2bに配されており、第1の筐体2の対向面2cから第1の筐体2の内部空間に貫通する開口部2dを介して外方に露出している。   Inside the first housing 2, there are provided a key operation unit 11 having various pressable operation keys 10 such as a call key and a call end key, and a microphone unit (electroacoustic transducer) 13 for a call. ing. Each operation key 10 of the key operation unit 11 is outside the opposing surface (front surface) 2c of the first casing 2 that faces the second casing 3 in a state where the two casings 2 and 3 are overlapped with each other. It is exposed towards. The microphone unit 13 is disposed on the distal end portion 2b of the first housing 2 located on the side opposite to the base end portion 2a, and from the facing surface 2c of the first housing 2 to the first housing 2. It is exposed to the outside through an opening 2d that penetrates the internal space.

この第1の筐体2は、第1の筐体2の対向面2c側を構成するフロントケース17、及び、第1の筐体2の外面2e側を構成するリアケース19を備えている。これらフロントケース17及びリアケース19は、互いに第1の筐体2の厚さ方向に結合可能となっている。
この第1の筐体2の内部には、図2〜4に示すように、対向面2cの反対側に位置するフロントケース17の内面17a側から、前述したキー操作部11、シールドケース(支持部材)21及び回路基板23が重ねて配されている。
キー操作部11は、前述した複数の操作キー10と、弾性変形可能な略矩形板状のゴムシート(位置決め部材)25とを備えている。ゴムシート25は、その厚さ方向に光を透過させることができる弾性変形可能な樹脂材料から形成されている。
The first housing 2 includes a front case 17 constituting the facing surface 2c side of the first housing 2 and a rear case 19 constituting the outer surface 2e side of the first housing 2. The front case 17 and the rear case 19 can be coupled to each other in the thickness direction of the first housing 2.
As shown in FIGS. 2 to 4, the above-described key operation unit 11, shield case (support) is provided inside the first housing 2 from the inner surface 17 a side of the front case 17 located on the opposite side of the facing surface 2 c. Member) 21 and circuit board 23 are arranged in an overlapping manner.
The key operation unit 11 includes the plurality of operation keys 10 described above and a substantially rectangular plate-shaped rubber sheet (positioning member) 25 that can be elastically deformed. The rubber sheet 25 is made of an elastically deformable resin material that can transmit light in the thickness direction.

複数の操作キー10は、このゴムシート25の表面25aに配され、フロントケース17の内面17aから対向面2cに貫通する複数の貫通孔17bから各々外方に露出するようになっている。また、各操作キー10には、図2,5に示すように、文字、数字、図形等の各種記号を形成した複数の記号形成領域10a〜10cが形成されており、これら各記号形成領域10a〜10cは、操作キー10の厚さ方向に光が透過できるように形成されている。そして、他の記号形成領域10a,10bよりも各種記号の大きさが小さい記号形成領域10cと厚さ方向に重なるゴムシート25の領域には、表面25aの反対側に位置するゴムシート25の裏面25bから厚さ方向に窪む凹部12が形成され、他の領域よりも薄く形成されている。
また、図2〜4に示すように、このキー操作部11は、ゴムシート25の裏面25bに配される薄膜状のスイッチシート29を備えており、操作キー10をゴムシート25の表面25aから裏面25b側に押下した際に、ゴムシート25が弾性変形してその裏面25b側がスイッチシート29の表面に形成されたスイッチパターン29aに当接することになる。このスイッチパターン29aは、前述した回路基板23と電気的に接続されている。
The plurality of operation keys 10 are arranged on the surface 25a of the rubber sheet 25 and are exposed outwardly from a plurality of through holes 17b penetrating from the inner surface 17a of the front case 17 to the opposing surface 2c. Further, as shown in FIGS. 2 and 5, each operation key 10 is formed with a plurality of symbol forming regions 10a to 10c in which various symbols such as letters, numbers, and figures are formed. -10c are formed so that light can be transmitted in the thickness direction of the operation key 10. In addition, in the region of the rubber sheet 25 that overlaps in the thickness direction with the symbol forming region 10c in which various symbols are smaller in size than the other symbol forming regions 10a and 10b, the back surface of the rubber sheet 25 located on the opposite side of the front surface 25a. A recess 12 that is recessed in the thickness direction from 25b is formed, and is formed thinner than other regions.
As shown in FIGS. 2 to 4, the key operation unit 11 includes a thin switch sheet 29 disposed on the back surface 25 b of the rubber sheet 25, and the operation key 10 is moved from the front surface 25 a of the rubber sheet 25. When pressed to the back surface 25 b side, the rubber sheet 25 is elastically deformed and the back surface 25 b side comes into contact with the switch pattern 29 a formed on the surface of the switch sheet 29. The switch pattern 29a is electrically connected to the circuit board 23 described above.

第1の筐体2の他端部2b側に位置するゴムシート25の表面25aの周縁部には、前述したマイクロフォン部13を収容する保持部27が一体的に形成されている。
保持部27は、弾性変形可能な樹脂材料から形成されると共に略有底円筒状の収容凹部31を備えており、この収容凹部31に略円柱状のマイクロフォン部13が収容されるようになっている。この保持部27は、マイクロフォン部13の外周面13cを囲む略円筒状の筒状壁部33と、筒状壁部33の一端側に設けられ、音孔13bを形成したマイクロフォン部13の一端面13aに当接する底壁部35とを備えている。底壁部35の中央部分には、マイクロフォン部13の音孔13bを第1の筐体2の外方に連通させるための貫通孔35aが形成されている。これら筒状壁部33の内周面31a及び底壁部35の底面35bにより前述の収容凹部31が構成される。
A holding portion 27 that accommodates the above-described microphone portion 13 is integrally formed on the peripheral edge portion of the surface 25 a of the rubber sheet 25 located on the other end portion 2 b side of the first housing 2.
The holding portion 27 is formed of an elastically deformable resin material and includes a substantially bottomed cylindrical housing recess 31, and the substantially cylindrical microphone portion 13 is accommodated in the housing recess 31. Yes. The holding portion 27 is provided on the one end side of the substantially cylindrical tubular wall portion 33 surrounding the outer peripheral surface 13c of the microphone portion 13 and the tubular wall portion 33, and one end surface of the microphone portion 13 forming the sound hole 13b. And a bottom wall portion 35 abutting against 13a. A through hole 35 a for allowing the sound hole 13 b of the microphone portion 13 to communicate with the outside of the first housing 2 is formed in the center portion of the bottom wall portion 35. The housing recess 31 is configured by the inner peripheral surface 31 a of the cylindrical wall portion 33 and the bottom surface 35 b of the bottom wall portion 35.

この保持部27において、フロントケース17の内面17aに対向する底壁部35の外面35cは、ゴムシート25の表面25aと共に略同一平面を形成している。また、筒状壁部33の他端側は、ゴムシート25の裏面25bから厚さ方向に突出している。
さらに、図4,6に示すように、筒状壁部33の一部は、ゴムシート25のうち、操作キー10の配置領域と厚さ方向に重ねて配されている。ただし、筒状壁部33の内周面31a及び底壁部35の貫通孔35aは、操作キー10の配置領域と厚さ方向に重ならず、ゴムシート25の他の領域と重なっている。すなわち、マイクロフォン部13は、その音孔13bがゴムシート25により覆い隠されないように、かつ、その一端面13aの一部が第1の筐体の厚さ方向に操作キー10と重ねて配されるように、収容凹部31に収容される。
In the holding portion 27, the outer surface 35 c of the bottom wall portion 35 facing the inner surface 17 a of the front case 17 forms a substantially same plane together with the surface 25 a of the rubber sheet 25. Moreover, the other end side of the cylindrical wall part 33 protrudes from the back surface 25b of the rubber sheet 25 in the thickness direction.
Furthermore, as shown in FIGS. 4 and 6, a part of the cylindrical wall portion 33 is arranged so as to overlap with the arrangement region of the operation key 10 in the rubber sheet 25 in the thickness direction. However, the inner peripheral surface 31a of the cylindrical wall portion 33 and the through hole 35a of the bottom wall portion 35 do not overlap with the arrangement region of the operation key 10 in the thickness direction but overlap with other regions of the rubber sheet 25. That is, the microphone unit 13 is arranged so that the sound hole 13b is not covered with the rubber sheet 25 and a part of the one end surface 13a is overlapped with the operation key 10 in the thickness direction of the first casing. As shown in FIG.

なお、保持部27の収容凹部31に収容されるマイクロフォン部13は、外方から音孔13bに到達した音響を電気信号に変換するものであり、その音孔13bは、略円形に形成されており、マイクロフォン部13の一端面13aの略中央部分に配されている。また、音孔13bの面積は、マイクロフォン部13の一端面13aの面積よりも小さく形成されている。すなわち、音孔13bを除く一端面13aは前述した保持部27の底壁部35に当接し、音孔13bは、その全体が底壁部35の貫通孔35aから露出するようになっている。   The microphone part 13 accommodated in the accommodating recess 31 of the holding part 27 converts sound that has reached the sound hole 13b from the outside into an electric signal, and the sound hole 13b is formed in a substantially circular shape. And is disposed at a substantially central portion of the one end surface 13a of the microphone section 13. Moreover, the area of the sound hole 13b is formed smaller than the area of the one end surface 13a of the microphone part 13. That is, the one end surface 13 a excluding the sound hole 13 b abuts on the bottom wall portion 35 of the holding portion 27 described above, and the entire sound hole 13 b is exposed from the through hole 35 a of the bottom wall portion 35.

また、マイクロフォン部13の外周面13cには突起37が形成されており、マイクロフォン部13を収容凹部31内に収容した状態において、突起37が筒状壁部33の内周面33aを押さえ、マイクロフォン部13を収容凹部31に適度な拘束力により所定位置に位置規制すると共に脱着修理も可能としている。
さらに、一端面13aの反対側に位置するマイクロフォン部13の他端面13dには、弾性変形可能な一対のコイルスプリング(バネ部材)39が突出して設けられており、マイクロフォン部13に電気的に接続されている。このコイルスプリング39は、回路基板23に当接することにより、マイクロフォン部13と回路基板23とを電気的に接続するようになっている。
Further, a projection 37 is formed on the outer peripheral surface 13 c of the microphone portion 13, and the projection 37 presses the inner peripheral surface 33 a of the cylindrical wall portion 33 in a state where the microphone portion 13 is accommodated in the accommodating recess 31. The position of the portion 13 is restricted to a predetermined position in the housing recess 31 by an appropriate restraining force, and the attachment / detachment repair is also possible.
Further, a pair of elastically deformable coil springs (spring members) 39 protrude from the other end surface 13 d of the microphone portion 13 located on the opposite side of the one end surface 13 a and are electrically connected to the microphone portion 13. Has been. The coil spring 39 contacts the circuit board 23 to electrically connect the microphone unit 13 and the circuit board 23.

図2,3に示すように、保持部27の筒状壁部33には、その外周面33bからゴムシート25の表面25aに沿う方向に延びる一対のリブ41が突出して形成されている。このリブ41は、ゴムシート25と略同一の厚さ寸法で形成されており、保持部27と共にゴムシート25に一体的に形成されている。
シールドケース21は、略板状に形成されており、回路基板23とスイッチシート29との間に配されると共に、スイッチシート29を介して第1の筐体2の内部側に位置するゴムシート25の裏面25b側の略全体に配されるものである。このシールドケース21は、第1の筐体2の内部に固定され、薄膜状のスイッチシート29や弾性変形可能なゴムシート25をリアケース19側から支持する役割を果たしている。また、このシールドケース21は導電性を有しており、回路基板23のグランドパターン(不図示)に電気的に接続されるように構成されている。
As shown in FIGS. 2 and 3, a pair of ribs 41 extending from the outer peripheral surface 33 b in the direction along the surface 25 a of the rubber sheet 25 protrudes from the cylindrical wall portion 33 of the holding portion 27. The ribs 41 are formed with substantially the same thickness as the rubber sheet 25, and are formed integrally with the rubber sheet 25 together with the holding portion 27.
The shield case 21 is formed in a substantially plate shape, is disposed between the circuit board 23 and the switch sheet 29, and is a rubber sheet positioned on the inner side of the first housing 2 via the switch sheet 29. 25 is arranged on substantially the entire back surface 25b side. The shield case 21 is fixed inside the first housing 2 and plays a role of supporting the thin film-like switch sheet 29 and the elastically deformable rubber sheet 25 from the rear case 19 side. The shield case 21 has conductivity and is configured to be electrically connected to a ground pattern (not shown) of the circuit board 23.

第1の筐体2の先端部2b側に位置するシールドケース21の端部には、その表面21a方向に窪む凹状の切欠部43が形成されている。ゴムシート25をフロントケース17の内面17aに配すると共に、シールドケース21をゴムシート25の裏面25b側に配した状態においては、前述の切欠部43にマイクロフォン部13及び保持部27の筒状壁部33がシールドケース21の厚さ方向に挿通されると共に、リブ41がフロントケース17とシールドケース21とにより挟み込まれることになる。   A concave notch 43 that is recessed in the direction of the surface 21 a is formed at the end of the shield case 21 that is located on the distal end 2 b side of the first housing 2. In the state where the rubber sheet 25 is disposed on the inner surface 17a of the front case 17 and the shield case 21 is disposed on the back surface 25b side of the rubber sheet 25, the cylindrical wall of the microphone portion 13 and the holding portion 27 is formed in the aforementioned notch portion 43. The portion 33 is inserted in the thickness direction of the shield case 21, and the rib 41 is sandwiched between the front case 17 and the shield case 21.

以上のように構成された携帯電話機1において、マイクロフォン部13の取付作業について以下に説明する。
マイクロフォン部13を第1の筐体2の内部に取り付ける際には、はじめに、マイクロフォン部13を保持部27の収容凹部31内に収容し、ゴムシート25をフロントケース17の内面17aに配する。この状態においては、第1の筐体2の開口部2dの周縁に位置する内面17aから突出する略円筒状のリブ17cが、保持部27の弾性力によって保持部27の貫通孔35aに嵌合すると共に、リブ17cの先端が音孔13bの周縁に位置するマイクロフォン部13の一端面13aに当接する。
In the mobile phone 1 configured as described above, the operation of attaching the microphone unit 13 will be described below.
When attaching the microphone part 13 to the inside of the first housing 2, first, the microphone part 13 is accommodated in the accommodating recess 31 of the holding part 27, and the rubber sheet 25 is arranged on the inner surface 17 a of the front case 17. In this state, the substantially cylindrical rib 17 c protruding from the inner surface 17 a located at the periphery of the opening 2 d of the first housing 2 is fitted into the through hole 35 a of the holding portion 27 by the elastic force of the holding portion 27. At the same time, the tip of the rib 17c comes into contact with one end face 13a of the microphone portion 13 located at the periphery of the sound hole 13b.

その後、ゴムシート25の裏面25b側にスイッチシート29を配する。さらに、シールドケース21及び回路基板23を順次重ねて配置する。最後に、回路基板23をシールドケース21側に押さえつけるように、フロントケース17にリアケース19を結合することで、マイクロフォン部13の取付作業が終了する。
この状態においては、マイクロフォン部13の他端面13dから突出するコイルスプリング39に回路基板23が当接するため、マイクロフォン部13と回路基板23との電気接続が保持されることになる。また、この状態においては、保持部27の底壁部35が第1の筐体2の内面17aに押し付けられて弾性変形する。
Thereafter, the switch sheet 29 is disposed on the back surface 25 b side of the rubber sheet 25. Further, the shield case 21 and the circuit board 23 are sequentially stacked. Finally, by attaching the rear case 19 to the front case 17 so as to press the circuit board 23 against the shield case 21 side, the attaching operation of the microphone unit 13 is completed.
In this state, the circuit board 23 comes into contact with the coil spring 39 protruding from the other end face 13d of the microphone section 13, so that the electrical connection between the microphone section 13 and the circuit board 23 is maintained. In this state, the bottom wall portion 35 of the holding portion 27 is pressed against the inner surface 17a of the first housing 2 and elastically deforms.

上記のように、この携帯電話機1によれば、マイクロフォン部13の一端面13aの一部をゴムシート25の厚さ方向に重ねて配するため、すなわち、マイクロフォン部13をキー操作部11に近接して配することができるため、マイクロフォン部13自体の小型化に頼ることなく、第1の筐体2の基端部2aから先端部2bに至る長さ寸法を短くして、携帯電話機1の小型化を図ることができる。
また、音孔13bの面積をマイクロフォン部13の一端面13aの面積よりも小さく形成すると共に、音孔13bの全体を保持部27の貫通孔35a及び第1の筐体2の開口部2dから外方に露出させている、すなわち、ゴムシート25により音孔13bが覆い隠されないように構成しているため、マイクロフォン部13の一端面の一部がゴムシート25により覆い隠されても、音孔13b全体を第1の筐体2の対向面2cから外方に露出させることができる。したがって、マイクロフォン部13の集音性能を損なうことがない。
As described above, according to the mobile phone 1, a part of the one end surface 13 a of the microphone unit 13 is arranged so as to overlap in the thickness direction of the rubber sheet 25, that is, the microphone unit 13 is close to the key operation unit 11. Therefore, without relying on the miniaturization of the microphone part 13 itself, the length from the base end part 2a to the front end part 2b of the first housing 2 is shortened, Miniaturization can be achieved.
Further, the area of the sound hole 13b is formed smaller than the area of the one end surface 13a of the microphone section 13, and the entire sound hole 13b is removed from the through hole 35a of the holding section 27 and the opening section 2d of the first housing 2. Since the sound hole 13b is not covered by the rubber sheet 25, even if a part of one end surface of the microphone portion 13 is covered by the rubber sheet 25, the sound hole The entire 13 b can be exposed outward from the facing surface 2 c of the first housing 2. Therefore, the sound collecting performance of the microphone unit 13 is not impaired.

また、保持部27を弾性変形可能な樹脂材料から形成することにより、保持部27の底壁部35が第1の筐体2の内面17aに押し付けられて弾性変形するため、第1の筐体2とマイクロフォン部13との隙間を介して第1の筐体2の内部に塵埃や水分等が進入することを防止できる。
保持部27に一体的に形成された板状のリブ41を設けているため、このリブ41を第1の筐体2やシールドケース21によりゴムシート25の厚さ方向から挟み込むことにより、保持部27がゴムシート25の厚さ方向に移動することを抑制することができる。したがって、保持部27及びこれに収容されるマイクロフォン部13の厚さ方向に関して、第1の筐体2に対する位置決め精度を高めることができる。また、リブ41を第1の筐体2やシールドケース21により挟み込んだ状態においては、保持部27がゴムシート25の厚さ方向に移動することを抑制できるため、保持部27及びマイクロフォン部13が第1の筐体2に対して振動することも抑制できるので、音響もれ対策にもなる。
In addition, since the holding portion 27 is formed of an elastically deformable resin material, the bottom wall portion 35 of the holding portion 27 is pressed against the inner surface 17a of the first casing 2 and elastically deforms. It is possible to prevent dust, moisture, and the like from entering the inside of the first housing 2 through the gap between the microphone 2 and the microphone unit 13.
Since the plate-like rib 41 formed integrally with the holding portion 27 is provided, the holding portion is sandwiched between the first casing 2 and the shield case 21 from the thickness direction of the rubber sheet 25. It is possible to suppress the movement of 27 in the thickness direction of the rubber sheet 25. Therefore, the positioning accuracy with respect to the first housing 2 can be increased with respect to the thickness direction of the holding portion 27 and the microphone portion 13 accommodated therein. In addition, in a state where the rib 41 is sandwiched between the first casing 2 and the shield case 21, the holding portion 27 can be prevented from moving in the thickness direction of the rubber sheet 25, so that the holding portion 27 and the microphone portion 13 are Since vibration with respect to the first housing 2 can also be suppressed, it is a measure against acoustic leakage.

保持部27が、リブ41と共にゴムシート25に一体的に形成されているため、ゴムシート25に対して保持部27が移動することを規制できる。すなわち、ゴムシート25を第1の筐体2の所定位置に固定することにより保持部27も所定の位置に固定することができる。したがって、第1の筐体2に振動が加えられたとしても、保持部27がゴムシート25に対して一体的に固定されているため、保持部27及びマイクロフォン部13がゴムシート25に対して振動することを抑制できる。   Since the holding portion 27 is integrally formed with the rubber sheet 25 together with the rib 41, the movement of the holding portion 27 with respect to the rubber sheet 25 can be restricted. That is, by fixing the rubber sheet 25 at a predetermined position of the first housing 2, the holding portion 27 can also be fixed at a predetermined position. Accordingly, even when vibration is applied to the first housing 2, the holding portion 27 and the microphone portion 13 are fixed to the rubber sheet 25 because the holding portion 27 is integrally fixed to the rubber sheet 25. Vibrating can be suppressed.

前記ゴムシート25やスイッチシート29を支持するシールドケース21を設けても、保持部27及びマイクロフォン部13を切欠部43に挿通させることにより、シールドケース21が保持部27及びマイクロフォン部13と第1の筐体2の厚さ方向に重なり合うことがないため、携帯電話機1の薄型化を図ることができる。
また、導電性を有するシールドケース21は、回路基板23のグランドパターンに電気的に接続されているため、スイッチシート29やマイクロフォン部13が帯電することを未然に防止できる。
Even when the shield case 21 for supporting the rubber sheet 25 and the switch sheet 29 is provided, the shield case 21 is inserted into the notch 43 by inserting the holding portion 27 and the microphone portion 13 into the notch portion 43 so that the shielding case 21 is connected to the holding portion 27 and the microphone portion 13. Therefore, the mobile phone 1 can be thinned.
In addition, since the shield case 21 having conductivity is electrically connected to the ground pattern of the circuit board 23, the switch sheet 29 and the microphone unit 13 can be prevented from being charged in advance.

コイルスプリング39を介してマイクロフォン部13を回路基板23に押さえつけた状態においては、コイルスプリング39の付勢力により、コイルスプリング39がマイクロフォン部13及び回路基板23の両方に当接するため、マイクロフォン部13と回路基板23との電気接続を確実に保持することができる。
また、操作キー10の記号形成領域10a〜10cのうち、各種記号の大きさが小さい記号形成領域10cと厚さ方向に重なるゴムシート25の領域が、他の領域よりも薄く形成されているため、ゴムシート25の裏面25b側から光を入射させた際に、操作キー10の記号形成領域10cの小さい各種記号であっても光を十分に透過させることができる。すなわち、暗い場所においても、操作キー10に形成された大きさの異なる各種記号全てを容易に視認することができる。なお、他の領域とは、各種記号を形成していない領域、及び/又は、各種記号の大きい記号形成領域10a,10bを示している。
In a state where the microphone part 13 is pressed against the circuit board 23 via the coil spring 39, the coil spring 39 abuts both the microphone part 13 and the circuit board 23 due to the biasing force of the coil spring 39. The electrical connection with the circuit board 23 can be reliably maintained.
In addition, among the symbol forming regions 10a to 10c of the operation key 10, the rubber sheet 25 region that overlaps the symbol forming region 10c having a small size of each symbol in the thickness direction is formed thinner than the other regions. When light is incident from the back surface 25 b side of the rubber sheet 25, light can be sufficiently transmitted even for various symbols in the symbol forming area 10 c of the operation key 10. That is, all the various symbols with different sizes formed on the operation keys 10 can be easily visually recognized even in a dark place. In addition, the other area | region has shown the area | region which has not formed various symbols, and / or the symbol formation area 10a, 10b with a large various symbols.

なお、上記の実施形態において、保持部27及びリブ41は、ゴムシート25に一体的に形成されるとしたが、これに限ることはなく、ゴムシート25とは別個の部材から形成した後に、ゴムシート25に連結するように構成するとしても構わない。この構成においても、保持部27及びリブ41がゴムシート25に一体的に固定されることになり、ゴムシート25に対して保持部27が移動することを規制できる。
また、ゴムシート25のうち、各記号形成領域10a〜10cと厚さ方向に重なる領域には、ゴムシート25の裏面25bから窪む凹部12が形成されるとしたが、これに限ることはなく、少なくとも各記号形成領域10a〜10cと厚さ方向に重なる領域が他の領域よりも薄く形成されていればよい。
In the above embodiment, the holding portion 27 and the rib 41 are formed integrally with the rubber sheet 25. However, the present invention is not limited to this, and after forming from a member separate from the rubber sheet 25, You may comprise so that it may connect with the rubber sheet 25. FIG. Also in this configuration, the holding portion 27 and the rib 41 are integrally fixed to the rubber sheet 25, and the movement of the holding portion 27 with respect to the rubber sheet 25 can be restricted.
Further, in the rubber sheet 25, the recesses 12 that are recessed from the back surface 25b of the rubber sheet 25 are formed in the regions overlapping the respective symbol forming regions 10a to 10c in the thickness direction. However, the present invention is not limited to this. The region that overlaps at least the symbol forming regions 10a to 10c in the thickness direction only needs to be formed thinner than the other regions.

さらに、コイルスプリング39は、マイクロフォン部13の他端面13dから突出して設けられるとしたが、これに限ることはなく、少なくともマイクロフォン部13と回路基板23との間に配されていればよい。すなわち、コイルスプリング39は、例えば、回路基板23の表面から突出して設けられるとしても構わない。
また、マイクロフォン部13は、その音孔全体がゴムシート25により覆い隠されない、すなわち、保持部27の貫通孔35a及び第1の筐体2の開口部2dを介して外方に露出されるように、収容凹部31に収容されるとしたが、これに限ることはなく、少なくとも音孔13bの一部がゴムシート25により覆い隠されないように収容凹部31に収容されていればよい。ただし、一般に、マイクロフォン部13の音孔13bは、その形成領域の中央部分において集音性能が高いため、マイクロフォン部13は、略円形の音孔13bの中央部分が操作キー10により覆い隠されないように、収容凹部31に収容されることが好ましい。この構成の場合には、マイクロフォン部13の集音性能を十分に発揮させることができる。
Furthermore, although the coil spring 39 is provided so as to protrude from the other end surface 13d of the microphone portion 13, the present invention is not limited to this, and it is sufficient that the coil spring 39 is disposed at least between the microphone portion 13 and the circuit board 23. That is, the coil spring 39 may be provided so as to protrude from the surface of the circuit board 23, for example.
Further, the entire sound hole of the microphone unit 13 is not covered with the rubber sheet 25, that is, exposed to the outside through the through hole 35 a of the holding unit 27 and the opening 2 d of the first housing 2. However, the present invention is not limited to this, and it is only necessary that at least a part of the sound hole 13b is accommodated in the accommodation recess 31 so as not to be covered with the rubber sheet 25. However, since the sound hole 13b of the microphone part 13 generally has a high sound collecting performance in the central part of the formation region, the microphone part 13 does not cover the central part of the substantially circular sound hole 13b with the operation key 10. In addition, it is preferably accommodated in the accommodating recess 31. In the case of this configuration, the sound collecting performance of the microphone unit 13 can be sufficiently exhibited.

さらに、保持部27には、マイクロフォン部13が収容されるとしたが、これに限ることはなく、例えば、電気信号を音響に変換して、該音響を音孔13bから外方に放出するスピーカ部を収容するとしても構わない。
また、ヒンジ部5によって互いに連結された2つの筐体2,3を備える携帯電話機1,51について述べたが、これに限ることはなく、例えば、1つの筐体から構成される携帯電話機であっても構わない。
Furthermore, although the microphone unit 13 is accommodated in the holding unit 27, the present invention is not limited to this. For example, a speaker that converts an electric signal into sound and emits the sound outward from the sound hole 13b. The part may be accommodated.
In addition, although the cellular phones 1 and 51 including the two casings 2 and 3 connected to each other by the hinge portion 5 have been described, the present invention is not limited to this. For example, the cellular phone is configured by a single casing. It doesn't matter.

さらに、携帯電話機に限ることはなく、少なくとも2つのケース部材を厚さ方向に結合してなる筐体と、筐体の内部に回路基板と、回路基板に電気接続されるモーター等の各種電子部品とを備える電子機器に適用することができ、例えば、PDAやデジタルカメラ、デジタルビデオカメラ、ノート型パーソナルコンピュータであってもよい。
以上、本発明の実施形態について図面を参照して詳述したが、具体的な構成はこの実施形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計変更等も含まれる。
Further, the present invention is not limited to a cellular phone, and various electronic components such as a casing formed by coupling at least two case members in the thickness direction, a circuit board inside the casing, and a motor electrically connected to the circuit board. For example, a PDA, a digital camera, a digital video camera, or a notebook personal computer may be used.
As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

この発明の一実施形態に係る携帯電話機の第1、第2の筐体を相互に開いた状態を示す概略斜視図である。It is a schematic perspective view which shows the state which opened the 1st, 2nd housing | casing of the mobile telephone which concerns on one Embodiment of this invention mutually. 図1の携帯電話機において、第1の筐体のフロントケース、ゴムシート、マイクロフォン部及びシールドケースを示す分解斜視図である。FIG. 2 is an exploded perspective view showing a front case, a rubber sheet, a microphone part, and a shield case of a first housing in the mobile phone of FIG. 図1の携帯電話機において、第1の筐体の内部に配されたマイクロフォン部及びその周囲の構成を示す拡大断面図である。FIG. 2 is an enlarged cross-sectional view illustrating a configuration of a microphone unit disposed in a first housing and its surroundings in the mobile phone of FIG. 1. 図1の携帯電話機において、第1の筐体の内部に配されたマイクロフォン部及びその周囲の構成を示す拡大断面図である。FIG. 2 is an enlarged cross-sectional view illustrating a configuration of a microphone unit disposed in a first housing and its surroundings in the mobile phone of FIG. 1. 図1の携帯電話機において、操作キーを示す拡大平面図である。FIG. 2 is an enlarged plan view showing operation keys in the mobile phone of FIG. 1. 図1の携帯電話機において、ゴムシート及び保持部を示す拡大平面図である。FIG. 2 is an enlarged plan view showing a rubber sheet and a holding portion in the mobile phone of FIG. 1.

符号の説明Explanation of symbols

1 携帯電話機(電子機器)
2 第1の筐体
2c 対向面(表面)
10 操作キー
10a〜10c 記号形成領域
11 キー操作部
13 マイクロフォン部(電気音響変換器)
13a 一端面
13b 音孔
13d 他端面
21 シールドケース(支持部材)
23 回路基板
25 ゴムシート(位置決め部材)
25a 表面
27 保持部
31 収容凹部
35 底壁部
35a 貫通孔
39 コイルスプリング(バネ部材)
41 リブ
1 Mobile phone (electronic equipment)
2 1st housing | casing 2c Opposite surface (surface)
10 operation keys 10a to 10c Symbol formation region 11 Key operation unit 13 Microphone unit (electroacoustic transducer)
13a One end surface 13b Sound hole 13d Other end surface 21 Shield case (support member)
23 Circuit board 25 Rubber sheet (positioning member)
25a surface 27 holding part 31 accommodating recess 35 bottom wall part 35a through hole 39 coil spring (spring member)
41 Ribs

Claims (9)

筐体と、筐体の内部に配されるキー操作部、電気音響変換器及び該電気音響変換器を収容する保持部とを備え、
前記キー操作部が、弾性変形可能な略矩形板状の位置決め部材と、該位置決め部材の表面に配されると共に、前記筐体の表面側に露出する複数の操作キーとを備え、
前記保持部が、前記位置決め部材の表面の周縁部に連結されると共に、前記電気音響変換器の一端面に設けられた音孔の少なくとも一部を前記筐体の外方に連通させるように形成され、
前記電気音響変換器が前記保持部に収容された状態において、前記電気音響変換器の一端面の一部が前記筐体の厚さ方向に前記操作キーと重ねて配されることを特徴とする電子機器。
A housing, and a key operation unit disposed in the housing, an electroacoustic transducer, and a holding unit that houses the electroacoustic transducer,
The key operation portion includes a substantially rectangular plate-shaped positioning member that can be elastically deformed, and a plurality of operation keys that are disposed on a surface of the positioning member and exposed on a surface side of the housing,
The holding portion is connected to a peripheral portion of the surface of the positioning member, and is formed so that at least a part of a sound hole provided in one end surface of the electroacoustic transducer communicates with the outside of the housing. And
In a state where the electroacoustic transducer is accommodated in the holding portion, a part of one end face of the electroacoustic transducer is arranged to overlap the operation key in the thickness direction of the casing. Electronics.
前記一端面のうち、少なくとも前記音孔の形成領域の中央部分が前記操作キーにより覆い隠されないように配置されていることを特徴とする請求項1に記載の電子機器。   2. The electronic device according to claim 1, wherein at least a central portion of the sound hole forming region of the one end surface is disposed so as not to be covered by the operation key. 前記電気音響変換器は、前記音孔が前記位置決め部材により覆い隠されないように配置されていることを特徴とする請求項1に記載の電子機器。   The electronic apparatus according to claim 1, wherein the electroacoustic transducer is arranged so that the sound hole is not covered with the positioning member. 前記保持部が、弾性変形可能な樹脂材料から形成されると共に、前記電気音響変換器を収容する凹部を有し、
前記凹部を構成する底壁部に、その厚さ方向に貫通して前記音孔を露出させる貫通孔が形成され、
前記保持部が、前記底壁部を前記筐体の内面に当接させて配されることを特徴とする請求項1から請求項3のいずれか1項に記載の電子機器。
The holding portion is formed of an elastically deformable resin material, and has a concave portion that accommodates the electroacoustic transducer,
A through-hole is formed in the bottom wall portion constituting the concave portion so as to penetrate the thickness direction and expose the sound hole,
The electronic device according to any one of claims 1 to 3, wherein the holding portion is disposed with the bottom wall portion in contact with an inner surface of the casing.
前記保持部の周縁から前記位置決め部材の表面に沿う方向に一体的に延びる略板状のリブを備えることを特徴とする請求項1から請求項4のいずれか1項に記載の電子機器。   5. The electronic apparatus according to claim 1, further comprising a substantially plate-shaped rib that integrally extends in a direction along a surface of the positioning member from a peripheral edge of the holding portion. 前記リブが、前記保持部と共に前記位置決め部材の表面の周縁部に連結されることを特徴とする請求項5に記載の電子機器。   The electronic apparatus according to claim 5, wherein the rib is connected to a peripheral edge portion of the surface of the positioning member together with the holding portion. 前記筐体内部に固定され、前記位置決め部材の筐体内部側に配して前記位置決め部材を支持する略板状の支持部材を備え、
該支持部材に、前記保持部及び前記電気音響変換器を前記支持部材の厚さ方向に挿通させる切欠部が形成されていることを特徴とする請求項1から請求項6のいずれか1項に記載の電子機器。
A substantially plate-like support member that is fixed inside the housing and arranged on the inside of the housing of the positioning member to support the positioning member;
The cut-out portion for inserting the holding portion and the electroacoustic transducer in the thickness direction of the support member is formed in the support member. The electronic device described.
前記位置決め部材の筐体内部側に配されると共に、前記一端面とは反対側に位置する前記電気音響変換器の他端面に対向配置される回路基板と、
前記電気音響変換器と前記回路基板との間に配され、前記電気音響変換器及び前記回路基板を相互に電気的に接続する弾性変形可能なバネ部材とを備えることを特徴とする請求項1から請求項7のいずれか1項に記載の電子機器。
A circuit board disposed on the inside of the housing of the positioning member and disposed opposite to the other end surface of the electroacoustic transducer located on the opposite side of the one end surface;
2. An elastically deformable spring member disposed between the electroacoustic transducer and the circuit board and electrically connecting the electroacoustic transducer and the circuit board to each other. The electronic device according to claim 7.
前記操作キーに、大きさの異なる文字、数字、図形等の各種記号を形成した複数の記号形成領域が形成され、
該記号形成領域は前記操作キーの厚さ方向に光が透過可能に形成され、
前記位置決め部材のうち、小さい各種記号を形成した前記記号形成領域と前記厚さ方向に重なる領域が、他の領域よりも薄く形成されていることを特徴とする請求項1から請求項8のいずれか1項に記載の電子機器。
A plurality of symbol forming areas in which various symbols such as letters, numbers, figures and the like having different sizes are formed on the operation keys,
The symbol forming region is formed so that light can be transmitted in the thickness direction of the operation key,
9. The method according to claim 1, wherein, in the positioning member, a region that overlaps the symbol formation region in which various small symbols are formed and the thickness direction is formed thinner than other regions. The electronic device of Claim 1.
JP2005011330A 2005-01-19 2005-01-19 Electronics Expired - Fee Related JP4606886B2 (en)

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