JP4905126B2 - Portable wireless terminal - Google Patents

Portable wireless terminal Download PDF

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JP4905126B2
JP4905126B2 JP2006354346A JP2006354346A JP4905126B2 JP 4905126 B2 JP4905126 B2 JP 4905126B2 JP 2006354346 A JP2006354346 A JP 2006354346A JP 2006354346 A JP2006354346 A JP 2006354346A JP 4905126 B2 JP4905126 B2 JP 4905126B2
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circuit board
housing
closed state
wireless terminal
portable wireless
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JP2008167159A (en
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真也 中村
拓也 小嶋
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NEC Corp
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Description

本発明は、第一ハウジングと第二ハウジングとが開閉自在に支持されている携帯無線端末に関し、特に、第一ハウジングに音声出力部がある携帯無線端末に関する。   The present invention relates to a portable wireless terminal in which a first housing and a second housing are supported so as to be openable and closable, and more particularly to a portable wireless terminal having an audio output unit in a first housing.

現在、図１１に示すように、携帯電話端末などの携帯無線端末１０には、その携帯性を向上させるために第一ハウジング１１と第二ハウジング１２とが開閉自在な製品がある。   Currently, as shown in FIG. 11, there is a product in which the first housing 11 and the second housing 12 are openable and closable in the portable wireless terminal 10 such as a cellular phone terminal in order to improve the portability.

このような携帯無線端末１０は、一般的に各々扁平なボックス状の第一ハウジング１１と第二ハウジング１２とがヒンジ機構１３により開閉自在に支持されている。第一ハウジング１１には第一回路基板１５が内蔵されており、第二ハウジング１２には第二回路基板１６が内蔵されている。これらの第一回路基板１５と第二回路基板１６とは、ヒンジ機構１３に挿通されたフレキシブル基板１７により接続されている。   In such a portable wireless terminal 10, a generally flat box-shaped first housing 11 and second housing 12 are supported by a hinge mechanism 13 so as to be freely opened and closed. A first circuit board 15 is built in the first housing 11, and a second circuit board 16 is built in the second housing 12. The first circuit board 15 and the second circuit board 16 are connected by a flexible board 17 inserted through the hinge mechanism 13.

そして、第一回路基板１５と第二回路基板１６との少なくとも一方に無線回路が搭載されており、無線アンテナ１８が接続されている。この無線アンテナ１８は、例えば、ヒンジ機構１３の近傍などに配置されている。   A wireless circuit is mounted on at least one of the first circuit board 15 and the second circuit board 16, and a wireless antenna 18 is connected thereto. For example, the wireless antenna 18 is disposed in the vicinity of the hinge mechanism 13.

なお、上述のような携帯無線端末１０である携帯電話端末では、通常、第一ハウジング１１に、ＬＣＤ(Liquid Crystal Display)等のディスプレイパネルと通話用のスピーカユニットとが搭載されている。第二ハウジング１２には、キーボードユニットと通話用のマイクロフォンとが搭載されている。   In the mobile phone terminal which is the mobile radio terminal 10 as described above, a display panel such as an LCD (Liquid Crystal Display) and a speaker unit for a call are usually mounted on the first housing 11. The second housing 12 is equipped with a keyboard unit and a telephone microphone.

そこで、携帯無線端末１０は、第一ハウジング１１と第二ハウジング１２とを開放することで、良好な操作性で無線通話を実行することができる。一方、第一ハウジング１１と第二ハウジング１２とを閉止することで、携帯性を向上させることができる。   Therefore, the mobile radio terminal 10 can perform a radio call with good operability by opening the first housing 11 and the second housing 12. On the other hand, portability can be improved by closing the first housing 11 and the second housing 12.

上述のような携帯無線端末１０は、開放状態で使用されるので、当然ながら無線アンテナ１８は開放状態で有効に機能する必要がある。しかし、閉止状態でも無線受信に待機するので、無線アンテナ１８は閉止状態でも有効に機能する必要がある。   Since the portable radio terminal 10 as described above is used in the open state, the radio antenna 18 needs to function effectively in the open state. However, since wireless reception waits even in the closed state, the wireless antenna 18 needs to function effectively even in the closed state.

なお、上述のような構造の携帯無線端末１０としては各種の提案がある(例えば、特許文献１〜５参照)。
特開２００２−０３３８０４号 特開２００３−１４３２７４号 特開２００３−２７３９８９号 特開２００４−０１５３０７号 特開２００４−２１４４４３号 There are various proposals for the portable wireless terminal 10 having the above-described structure (see, for example, Patent Documents 1 to 5).
JP 2002-033804 A JP 2003-143274 A Japanese Patent Laid-Open No. 2003-273898 JP 2004-015307 A JP 2004-214443 A

上述のように携帯無線端末１０は、開放状態と閉止状態との両方で無線アンテナ１８が有効に機能する必要がある。しかし、第一ハウジング１１と第二ハウジング１２とが開閉されると、そこに内蔵されている第一回路基板１５と第二回路基板１６とのインピーダンス条件が変化する。   As described above, the mobile radio terminal 10 needs to function effectively in both the open state and the closed state. However, when the first housing 11 and the second housing 12 are opened and closed, the impedance condition between the first circuit board 15 and the second circuit board 16 incorporated therein changes.

そして、このように第一回路基板１５と第二回路基板１６とのインピーダンス条件が変化すると、無線アンテナ１８の特性も変化する。そこで、現在の携帯電話端末などの携帯無線端末１０では、図１２に示すように、開放状態で無線アンテナ１８の放射効率が最良となるように各部を調整している。   When the impedance condition between the first circuit board 15 and the second circuit board 16 changes as described above, the characteristics of the wireless antenna 18 also change. Therefore, in the current portable wireless terminal 10 such as a portable telephone terminal, as shown in FIG. 12, each part is adjusted so that the radiation efficiency of the wireless antenna 18 is the best in the open state.

しかし、このように形成されている携帯無線端末１０では、必然的に閉止状態での無線アンテナ１８の放射効率が低下する。このため、閉止状態での着呼の無線受信に支障をきたすことがある。   However, in the portable wireless terminal 10 formed in this way, the radiation efficiency of the wireless antenna 18 in the closed state inevitably decreases. For this reason, it may interfere with radio reception of an incoming call in the closed state.

本発明は上述のような課題に鑑みてなされたものであり、第一ハウジングと第二ハウジングとが開閉自在でありながら、開放状態と閉止状態との両方で無線アンテナの特性を良好とすることができる構造の携帯無線端末を提供するものである。   The present invention has been made in view of the above-described problems, and the first housing and the second housing are openable and closable, and the characteristics of the wireless antenna are improved in both the open state and the closed state. A portable wireless terminal having a structure capable of providing

本発明の携帯無線端末では、少なくとも一方に無線回路が搭載されていて無線アンテナが接続されている第一回路基板と第二回路基板とがヒンジ機構により開閉自在に連結されている第一ハウジングと第二ハウジングとに個々に内蔵されている構造の携帯無線端末であって、開放状態と閉止状態とで第一回路基板と第二回路基板とのインピーダンス条件を変更する条件変更機構を有する。   In the portable wireless terminal of the present invention, a first circuit board on which a radio circuit is mounted on at least one and a radio antenna is connected, and a first housing in which the second circuit board is connected to be freely opened and closed by a hinge mechanism; A portable wireless terminal having a structure individually incorporated in the second housing, and having a condition changing mechanism for changing impedance conditions between the first circuit board and the second circuit board between an open state and a closed state.

従って、本発明の携帯無線端末では、開放状態と閉止状態とで第一回路基板と第二回路基板とのインピーダンス条件が条件変更機構により変更されるので、無線アンテナの特性を開放状態と閉止状態との各々で最良とすることができる。   Therefore, in the portable wireless terminal of the present invention, the impedance condition between the first circuit board and the second circuit board is changed by the condition changing mechanism between the open state and the closed state, so the characteristics of the wireless antenna are changed between the open state and the closed state. And can be the best in each.

なお、本発明の各種の構成要素は、必ずしも個々に独立した存在である必要はなく、複数の構成要素が一個の部材として形成されていること、一つの構成要素が複数の部材で形成されていること、ある構成要素が他の構成要素の一部であること、ある構成要素の一部と他の構成要素の一部とが重複していること、等でもよい。   The various components of the present invention do not necessarily have to be independent of each other. A plurality of components are formed as a single member, and a single component is formed of a plurality of members. It may be that a certain component is a part of another component, a part of a certain component overlaps with a part of another component, or the like.

本発明の携帯無線端末では、開放状態と閉止状態とで第一回路基板と第二回路基板とのインピーダンス条件が条件変更機構により変更されるので、無線アンテナの特性を開放状態と閉止状態との各々で最良とすることができる。このため、開放状態と閉止状態との両方で良好に無線通信することができるので、例えば、携帯電話端末が閉止状態では着呼を良好に無線受信できないようなことを防止できる。   In the portable wireless terminal of the present invention, the impedance condition between the first circuit board and the second circuit board is changed by the condition changing mechanism between the open state and the closed state, so that the characteristics of the wireless antenna are changed between the open state and the closed state. Each can be best. For this reason, wireless communication can be satisfactorily performed both in the open state and in the closed state. For example, it is possible to prevent the mobile phone terminal from receiving the incoming call satisfactorily in the closed state.

本発明の実施の一形態を図１ないし図５を参照して以下に説明する。本実施の形態の携帯無線端末である携帯電話端末１００は、図１ないし図４に示すように、少なくとも一方に無線回路(図示せず)が搭載されていて無線アンテナ１７０が接続されている第一回路基板１５０と第二回路基板１６０とが、ヒンジ機構１３０により開閉自在に連結されている第一ハウジング１１０と第二ハウジング１２０とに個々に内蔵されている。   An embodiment of the present invention will be described below with reference to FIGS. As shown in FIGS. 1 to 4, mobile phone terminal 100, which is a mobile radio terminal of the present embodiment, has a radio circuit (not shown) mounted on at least one side and a radio antenna 170 connected thereto. The one circuit board 150 and the second circuit board 160 are individually housed in a first housing 110 and a second housing 120 that are connected to each other by a hinge mechanism 130 so as to be freely opened and closed.

ただし、本実施の形態の携帯電話端末１００は、開放状態と閉止状態とで第一回路基板１５０と第二回路基板１６０とのインピーダンス条件を変更する条件変更機構１９０を有する。   However, the cellular phone terminal 100 according to the present embodiment includes a condition changing mechanism 190 that changes the impedance condition between the first circuit board 150 and the second circuit board 160 between the open state and the closed state.

より詳細には、第二ハウジング１２０は、ヒンジ機構１３０の一部として機能するために一端が円筒状に形成されており、この部分で第一ハウジング１１０に回動自在に軸支されている。   More specifically, the second housing 120 has one end formed in a cylindrical shape so as to function as a part of the hinge mechanism 130, and is pivotally supported by the first housing 110 at this portion.

第一ハウジング１１０と第二ハウジング１２０とは、上述のような形状に非導電性の樹脂により形成されている。ただし、第二ハウジング１２０は、閉止状態で第一ハウジング１１０と対向する部分が、後述する第二導電部材１９２として金属で形成されている。   The first housing 110 and the second housing 120 are formed of a non-conductive resin in the shape as described above. However, in the second housing 120, a portion facing the first housing 110 in the closed state is formed of metal as a second conductive member 192 described later.

無線アンテナ１７０は第一回路基板１５０に接続されており、ヒンジ機構１３０の近傍で第一ハウジング１１０に搭載されている。このため、無線アンテナ１７０は、第一および第二ハウジング１１０，１２０の開放状態では第二回路基板１６０に近接し、閉止状態では離間する。   The wireless antenna 170 is connected to the first circuit board 150 and is mounted on the first housing 110 in the vicinity of the hinge mechanism 130. For this reason, the radio antenna 170 is close to the second circuit board 160 when the first and second housings 110 and 120 are open, and is separated when the first and second housings 110 and 120 are closed.

第一回路基板１５０と第二回路基板１６０とは各々に各種の集積回路が形成されている(図示せず)。その第一回路基板１５０と第二回路基板１６０との集積回路は、ヒンジ機構１３０に挿通されている高インダクタンスのフレキシブル基板１８０で常時接続されている。   Various integrated circuits are formed on each of the first circuit board 150 and the second circuit board 160 (not shown). The integrated circuit of the first circuit board 150 and the second circuit board 160 is always connected by a high-inductance flexible board 180 inserted through the hinge mechanism 130.

また、第一回路基板１５０と第二回路基板１６０とは各々にアース配線が形成されている(図示せず)。条件変更機構１９０は、閉止状態のときのみ低インダクタンスの導電路で第一回路基板１５０と第二回路基板１６０とのアース配線を接続する。   The first circuit board 150 and the second circuit board 160 are each provided with a ground wiring (not shown). The condition changing mechanism 190 connects the ground wirings of the first circuit board 150 and the second circuit board 160 with a low-inductance conductive path only in the closed state.

このため、条件変更機構１９０は、図３および図４に示すように、第一回路基板１５０のアース配線に接続されていて導電路の一部を形成する第一導電部材１９１と、第二回路基板１６０に接続されていて導電路の一部を形成する第二導電部材１９２と、開放状態のときに第一導電部材１９１と第二導電部材１９２とを離間させて閉止状態のときに接続させる部材接離機構であるヒンジ機構１３０と、を有する。   Therefore, as shown in FIGS. 3 and 4, the condition changing mechanism 190 includes a first conductive member 191 that is connected to the ground wiring of the first circuit board 150 and forms a part of the conductive path, and a second circuit. The second conductive member 192 that is connected to the substrate 160 and forms a part of the conductive path is separated from the first conductive member 191 and the second conductive member 192 in the open state, and is connected in the closed state. And a hinge mechanism 130 which is a member contacting / separating mechanism.

つまり、第一導電部材１９１は、第二ハウジング１２０のヒンジ機構１３０の一部として機能する円筒状の一端の外周面に当接している。また、第二導電部材１９２は、開閉に連動して第一導電部材１９１に接離する位置で、第二ハウジング１２０の上述の円筒状の一端の外周面に配置されている。   That is, the first conductive member 191 is in contact with the outer peripheral surface of one end of the cylindrical shape that functions as a part of the hinge mechanism 130 of the second housing 120. The second conductive member 192 is disposed on the outer peripheral surface of the above-described cylindrical one end of the second housing 120 at a position where the second conductive member 192 contacts and separates from the first conductive member 191 in conjunction with opening and closing.

なお、前述のように第二ハウジング１２０は、閉止状態で第一ハウジング１１０と対向する部分が金属で形成されており、この部分と第二導電部材１９２とが一体に形成されている。   As described above, in the second housing 120, the portion facing the first housing 110 in the closed state is formed of metal, and this portion and the second conductive member 192 are integrally formed.

条件変更機構１９０は、上述のように閉止状態のときのみ低インダクタンスの導電路で第一回路基板１５０と第二回路基板１６０とのアース配線を導電路で接続することにより、第一回路基板１５０と第二回路基板１６０とのインピーダンス条件を開放状態では上昇させて閉止状態では低下させる。   The condition changing mechanism 190 connects the ground wiring of the first circuit board 150 and the second circuit board 160 with the conductive path only in the closed state, as described above, by the conductive path. And the impedance condition of the second circuit board 160 are raised in the open state and lowered in the closed state.

上述のような構成において、本実施の形態の携帯電話端末１００では、第一ハウジング１１０と第二ハウジング１２０とがヒンジ機構１３０により開閉自在に連結されている。このため、開放による良好な操作性と、閉止による良好な携帯性と、が両立されている。   In the configuration as described above, in the mobile phone terminal 100 of the present embodiment, the first housing 110 and the second housing 120 are connected to each other by the hinge mechanism 130 so as to be freely opened and closed. For this reason, good operability by opening and good portability by closing are compatible.

そして、本発明の携帯電話端末１００では、図３および図４に示すように、第一回路基板１５０のアース配線に接続されている第一導電部材１９１と、第二回路基板１６０のアース配線に接続されている第二導電部材１９２とが、開放状態では分離されて閉止状態では接続される。   In the cellular phone terminal 100 of the present invention, as shown in FIGS. 3 and 4, the first conductive member 191 connected to the ground wiring of the first circuit board 150 and the ground wiring of the second circuit board 160 are used. The connected second conductive member 192 is separated in the open state and connected in the closed state.

このため、第一ハウジング１１０に内蔵されている第一回路基板１５０と第二ハウジング１２０に内蔵されている第二回路基板１６０とは、閉止状態では高インダクタンスのフレキシブル基板１８０のみで接続されている。   Therefore, the first circuit board 150 built in the first housing 110 and the second circuit board 160 built in the second housing 120 are connected only by the high-inductance flexible board 180 in the closed state. .

従って、第一回路基板１５０と第二回路基板１６０とのアース配線は電気的に直結されておらず、そこに通電される高周波電流が低減されている。一方、開放状態では第一回路基板１５０と第二回路基板１６０とのアース配線が低インダクタンスの導電路でも接続されるので、そこに通電される高周波電流が増大する。   Therefore, the ground wiring between the first circuit board 150 and the second circuit board 160 is not electrically connected directly, and the high-frequency current that is supplied to the ground wiring is reduced. On the other hand, in the open state, the ground wiring between the first circuit board 150 and the second circuit board 160 is connected even with a low-inductance conductive path, so that the high-frequency current that is passed through the ground circuit increases.

従って、本実施の形態の携帯電話端末１００では、開放状態では第一回路基板１５０と第二回路基板１６０とのインピーダンス条件が所定範囲まで上昇され、閉止状態では所定範囲まで低下されるので、無線アンテナ１７０の特性を開放状態と閉止状態との各々で最良とすることができる。   Therefore, in the cellular phone terminal 100 according to the present embodiment, the impedance condition between the first circuit board 150 and the second circuit board 160 is increased to a predetermined range in the open state, and is decreased to the predetermined range in the closed state. The characteristics of the antenna 170 can be best in each of the open state and the closed state.

ここで、本発明による実験結果を以下に説明する。本発明者は実際に、従来の携帯電話端末で第一回路基板と第二回路基板とのインピーダンス条件を開放状態と閉止状態とで測定した。   Here, experimental results according to the present invention will be described below. The present inventor actually measured the impedance condition between the first circuit board and the second circuit board in the open state and the closed state in a conventional mobile phone terminal.

すると、図５に示すように、開放状態ではインピーダンス条件が５０Ω〜２００Ωなどの範囲のときに無線アンテナの放射効率が−２dB程度に向上し、閉止状態では−５０Ω〜０Ωなどの範囲のときに−２dB程度に向上することが確認された。   Then, as shown in FIG. 5, when the impedance condition is in the range of 50Ω to 200Ω in the open state, the radiation efficiency of the wireless antenna is improved to about −2 dB, and in the closed state, in the range of −50Ω to 0Ω. It was confirmed that it improved to about -2 dB.

そこで、本実施の形態の携帯電話端末１００は、第一回路基板１５０と第二回路基板１６０とを閉止状態では高インダクタンスのフレキシブル基板１８０のみで接続し、開放状態では低インダクタンスの導電路でも接続することにより、第一回路基板１５０と第二回路基板１６０とのインピーダンス条件を開放状態では５０Ω〜２００Ωなどの所定範囲まで上昇させ、閉止状態では−５０Ω〜０Ωなどの所定範囲まで低下させる。   Therefore, in the cellular phone terminal 100 of the present embodiment, the first circuit board 150 and the second circuit board 160 are connected only by the high-inductance flexible board 180 in the closed state, and are connected by the low-inductance conductive path in the open state. Thus, the impedance condition between the first circuit board 150 and the second circuit board 160 is increased to a predetermined range such as 50Ω to 200Ω in the open state, and is decreased to a predetermined range such as −50Ω to 0Ω in the closed state.

このため、本実施の形態の携帯電話端末１００は、無線アンテナ１７０の特性を開放状態と閉止状態との各々で最良とすることができる。従って、開放状態と閉止状態との両方で良好に無線通信することができるので、閉止状態では着呼を良好に無線受信できないようなことを防止できる。   For this reason, the cellular phone terminal 100 according to the present embodiment can optimize the characteristics of the wireless antenna 170 in each of the open state and the closed state. Accordingly, since wireless communication can be performed satisfactorily in both the open state and the closed state, it is possible to prevent the incoming call from being received wirelessly in the closed state.

しかも、開閉に連動させて第一回路基板１５０と第二回路基板１６０とのアース配線が接離される。このため、簡単な構造で確実に第一回路基板１５０と第二回路基板１６０とのインピーダンス条件を変更することができる。   Moreover, the ground wiring between the first circuit board 150 and the second circuit board 160 is connected and separated in conjunction with opening and closing. Therefore, the impedance condition between the first circuit board 150 and the second circuit board 160 can be reliably changed with a simple structure.

さらに、第一回路基板１５０と第二回路基板１６０とを接離する第一導電部材１９１と第二導電部材１９２とがヒンジ機構１３０の一部として形成されている。このため、簡単な構造で確実に第一回路基板１５０と第二回路基板１６０とを接離させることができる。   Further, a first conductive member 191 and a second conductive member 192 that contact and separate the first circuit board 150 and the second circuit board 160 are formed as a part of the hinge mechanism 130. For this reason, the 1st circuit board 150 and the 2nd circuit board 160 can be reliably contacted / separated with a simple structure.

しかも、第二ハウジング１２０の一部が金属で形成されており、この部分と第二導電部材１９２とが一体に形成されている。このため、簡単な構造で第二導電部材１９２を第一導電部材１９１と接離させることができる。   Moreover, a part of the second housing 120 is made of metal, and this part and the second conductive member 192 are integrally formed. For this reason, the second conductive member 192 can be brought into contact with and separated from the first conductive member 191 with a simple structure.

なお、本発明は本実施の形態に限定されるものではなく、その要旨を逸脱しない範囲で各種の変形を許容する。例えば、上記形態では第二ハウジング１２０の一部が第二導電部材１９２と一体に金属で形成されていることを例示した。   The present invention is not limited to the present embodiment, and various modifications are allowed without departing from the scope of the present invention. For example, in the above embodiment, a part of the second housing 120 is illustrated as being integrally formed with the second conductive member 192 from metal.

しかし、図６および図７に例示する携帯電話端末２００のように、第一ハウジング１１０と第二ハウジング２１０との両方が樹脂で形成されており、第一導電部材１９１と第二導電部材２１１とが各々専用の金具として形成されていてもよい。また、図８および図９に例示する携帯電話端末２２０のように、第一ハウジング２３０の一部が第一導電部材２３１と一体に金属で形成されていてもよい。   However, like the mobile phone terminal 200 illustrated in FIGS. 6 and 7, both the first housing 110 and the second housing 210 are formed of resin, and the first conductive member 191, the second conductive member 211, May be formed as dedicated metal fittings. Further, like the mobile phone terminal 220 illustrated in FIGS. 8 and 9, a part of the first housing 230 may be formed integrally with the first conductive member 231 from metal.

さらに、上記形態では無線アンテナ１７０がヒンジ機構１３０の近傍で第一ハウジング１１０に搭載されており、第一および第二ハウジング１１０，１２０の開放状態では第二回路基板１６０に近接して閉止状態では離間することを例示した。   Further, in the above embodiment, the radio antenna 170 is mounted on the first housing 110 in the vicinity of the hinge mechanism 130. When the first and second housings 110 and 120 are opened, they are close to the second circuit board 160 and are not closed. The separation is exemplified.

しかし、図１０に例示する携帯電話端末２４０のように、無線アンテナ２４１が第一ハウジング１１０に内蔵されていてもよく、ヒンジ機構１３０とは逆側の第二ハウジングの一端に配置されていてもよい(図示せず)。   However, like the mobile phone terminal 240 illustrated in FIG. 10, the wireless antenna 241 may be built in the first housing 110, or may be disposed at one end of the second housing opposite to the hinge mechanism 130. Good (not shown).

また、上記形態では携帯無線端末として携帯電話端末１００を例示した。しかし、本発明は第一ハウジング１１０と第二ハウジング１２０が開閉自在であり、開放状態と閉止状態との両方で無線通信する、各種の無線携帯端末に利用することができる。   Moreover, in the said form, the mobile telephone terminal 100 was illustrated as a portable wireless terminal. However, the present invention can be used for various wireless portable terminals in which the first housing 110 and the second housing 120 are openable and closable and wirelessly communicate in both an open state and a closed state.

さらに、上記形態では第一および第二回路基板１５０，１６０のインピーダンス条件を第一および第二ハウジング１１０，１２０の開放時に上昇させて閉止時に低下させることにより、開閉状態の両方で無線アンテナ１７０の特性を良好とすることを例示した。   Further, in the above embodiment, the impedance condition of the first and second circuit boards 150 and 160 is raised when the first and second housings 110 and 120 are opened and lowered when the first and second housings 110 and 120 are closed, thereby It was exemplified that the characteristics were good.

しかし、上記のインピーダンス条件とアンテナ特性との関係は、携帯電話端末の無線アンテナの配置などの各種条件によって逆転することもある。このような場合、第一および第二回路基板のインピーダンス条件を第一および第二ハウジングの開放時に低下させて閉止時に上昇させることが好ましい(図示せず)。   However, the relationship between the impedance condition and the antenna characteristic may be reversed depending on various conditions such as the arrangement of the wireless antenna of the mobile phone terminal. In such a case, it is preferable that the impedance conditions of the first and second circuit boards are lowered when the first and second housings are opened and raised when the first and second housings are closed (not shown).

同様に、上記形態では第一および第二ハウジング１１０，１２０の開放時に高インダクタンスに接続されている第一および第二回路基板１５０，１６０を閉止時に低インダクタンスに接続することで、無線アンテナ１７０の特性を良好とすることを例示した。   Similarly, in the above embodiment, the first and second circuit boards 150 and 160 that are connected to a high inductance when the first and second housings 110 and 120 are opened are connected to a low inductance when the first and second housings 110 and 120 are closed. It was exemplified that the characteristics were good.

しかし、このような回路導通とアンテナ特性との関係も各種条件によって逆転することがあるので、このような場合には、第一および第二ハウジングの閉止時に高インダクタンスに接続されている第一および第二回路基板を開放時に低インダクタンスに接続することが好ましい(図示せず)。   However, since the relationship between the circuit continuity and the antenna characteristics may be reversed depending on various conditions, in such a case, the first and second inductors connected to the high inductance when the first and second housings are closed. The second circuit board is preferably connected to a low inductance when opened (not shown).

本発明の実施の形態の携帯無線端末である携帯電話端末の内部構造を示す縦断側面図である。It is a vertical side view which shows the internal structure of the mobile telephone terminal which is a portable radio | wireless terminal of embodiment of this invention. 携帯電話端末の内部構造を示す模式的な斜視図である。It is a typical perspective view which shows the internal structure of a mobile telephone terminal. 携帯電話端末の要部の開放状態での内部構造を示す縦断側面図である。It is a vertical side view which shows the internal structure in the open state of the principal part of a mobile telephone terminal. 携帯電話端末の要部の閉止状態での内部構造を示す縦断側面図である。It is a vertical side view which shows the internal structure in the closed state of the principal part of a mobile telephone terminal. 携帯電話端末の開放状態と閉止状態での回路基板のインピーダンス条件と無線アンテナの放射効率との関係を示す特性図である。It is a characteristic view which shows the relationship between the impedance conditions of a circuit board in the open state and closed state of a mobile telephone terminal, and the radiation efficiency of a radio | wireless antenna. 一変形例の携帯電話端末の要部の開放状態での内部構造を示す縦断側面図である。It is a vertical side view which shows the internal structure in the open state of the principal part of the mobile telephone terminal of one modification. 要部の閉止状態での内部構造を示す縦断側面図である。It is a vertical side view which shows the internal structure in the closed state of the principal part. 他の変形例の携帯電話端末の要部の開放状態での内部構造を示す縦断側面図である。It is a vertical side view which shows the internal structure in the open state of the principal part of the mobile telephone terminal of another modification. 要部の閉止状態での内部構造を示す縦断側面図である。It is a vertical side view which shows the internal structure in the closed state of the principal part. さらに他の変形例の携帯電話端末の内部構造を示す模式的な斜視図である。It is a typical perspective view which shows the internal structure of the mobile telephone terminal of another modification. 一従来例の携帯電話端末の内部構造を示す模式的な斜視図である。It is a typical perspective view which shows the internal structure of the mobile telephone terminal of one prior art example. 携帯電話端末の開放状態と閉止状態での無線アンテナの放射効率を示す特性図である。It is a characteristic view which shows the radiation efficiency of the radio | wireless antenna in the open state and closed state of a mobile telephone terminal.

符号の説明Explanation of symbols

１０ 携帯無線端末
１１ 第一ハウジング
１２ 第二ハウジング
１３ ヒンジ機構
１５ 第一回路基板
１６ 第二回路基板
１７ フレキシブル基板
１８ 無線アンテナ
１００ 携帯電話端末
１１０ 第一ハウジング
１２０ 第二ハウジング
１３０ ヒンジ機構
１５０ 第一回路基板
１６０ 第二回路基板
１７０ 無線アンテナ
１８０ フレキシブル基板
１９０ 条件変更機構
１９１ 第一導電部材
１９２ 第二導電部材
２００ 携帯電話端末
２１０ 第二ハウジング
２１１ 第二導電部材
２２０ 携帯電話端末
２３０ 第一ハウジング
２３１ 第一導電部材
２４０ 携帯電話端末
２４１ 無線アンテナ DESCRIPTION OF SYMBOLS 10 Portable radio | wireless terminal 11 1st housing 12 2nd housing 13 Hinge mechanism 15 1st circuit board 16 2nd circuit board 17 Flexible board 18 Wireless antenna 100 Mobile phone terminal 110 1st housing 120 2nd housing 130 Hinge mechanism 150 1st circuit Substrate 160 Second circuit board 170 Radio antenna 180 Flexible substrate 190 Condition changing mechanism 191 First conductive member 192 Second conductive member 200 Mobile phone terminal 210 Second housing 211 Second conductive member 220 Mobile phone terminal 230 First housing 231 First Conductive member 240 Mobile phone terminal 241 Wireless antenna

Claims (7)

少なくとも一方に無線回路が搭載されていて無線アンテナが接続されている第一回路基板と第二回路基板とがヒンジ機構により開閉自在に連結されている第一ハウジングと第二ハウジングとに個々に内蔵されている構造の携帯無線端末であって、
開放状態と閉止状態とで前記第一回路基板と前記第二回路基板とのインピーダンスを変更する条件変更機構を有し、
前記第一回路基板と前記第二回路基板とが、ヒンジ機構を挿通する高インダクタンスのフレキシブル基板で常時接続されており、
前記条件変更機構は、
前記第一ハウジングのうち前記ヒンジ機構と同じ側の端部に設けられており、
前記閉止状態のときのみ低インダクタンスの導電路で前記第一回路基板と前記第二回路基板とを接続する携帯無線端末。 A first circuit board and a second circuit board on which a radio circuit is mounted and at least one of which is connected to a radio antenna are individually connected to a first housing and a second housing which are connected to each other by a hinge mechanism. A portable wireless terminal having a structure
Condition changing mechanism for changing the impedance between the open state and the closed state the first circuit board and said second circuit board have a,
The first circuit board and the second circuit board are always connected by a high-inductance flexible board that passes through a hinge mechanism,
The condition changing mechanism is
Provided at the end of the first housing on the same side as the hinge mechanism,
A portable wireless terminal that connects the first circuit board and the second circuit board through a low-inductance conductive path only in the closed state . 前記条件変更機構は、前記第一回路基板と前記第二回路基板とのインピーダンスを前記開放状態では上昇させて前記閉止状態では低下させる請求項１に記載の携帯無線端末。 The condition changing mechanism, the portable wireless terminal according to claim 1 to reduce the said closed state by increase in the impedance the open state of said second circuit board and the first circuit board. 前記第一回路基板と前記第二回路基板との各々にアース配線が形成されており、
前記条件変更機構は、前記閉止状態のときに前記第一回路基板と前記第二回路基板との前記アース配線を前記導電路で接続する請求項１に記載の携帯無線端末。 Ground wiring is formed on each of the first circuit board and the second circuit board,
The portable wireless terminal according to claim 1 , wherein the condition changing mechanism connects the ground wiring between the first circuit board and the second circuit board through the conductive path in the closed state. 前記条件変更機構は、前記第一回路基板に接続されていて前記導電路の一部を形成する第一導電部材と、前記第二回路基板に接続されていて前記導電路の一部を形成する第二導電部材と、前記開放状態のときに前記第一導電部材と前記第二導電部材とを離間させて前記閉止状態のときに接続させる部材接離機構と、を有する請求項１〜３のいずれか一項に記載の携帯無線端末。 The condition changing mechanism is connected to the first circuit board and forms a part of the conductive path, and is connected to the second circuit board and forms a part of the conductive path. The member contacting / separating mechanism that separates the first conductive member and the second conductive member when they are in the open state and connects them when they are in the closed state . The portable wireless terminal according to any one of the above. 前記第一ハウジングの少なくとも一部が金属部分からなり、前記第一導電部材が前記第一ハウジングの前記金属部分からなる請求項４に記載の携帯無線端末。 The portable wireless terminal according to claim 4 , wherein at least a part of the first housing is made of a metal portion, and the first conductive member is made of the metal portion of the first housing. 前記第二ハウジングの少なくとも一部が金属部分からなり、前記第二導電部材が前記第二ハウジングの前記金属部分からなる請求項４または５に記載の携帯無線端末。 The portable wireless terminal according to claim 4 or 5 , wherein at least a part of the second housing is made of a metal part, and the second conductive member is made of the metal part of the second housing. 請求項１〜６のいずれか一項に記載の携帯無線端末において、  In the portable radio terminal according to any one of claims 1 to 6,
前記無線アンテナは、前記第一ハウジング又は前記第二ハウジングのうち、前記ヒンジ機構が位置している側の端部に設けられている携帯無線端末。  The wireless antenna is a portable wireless terminal provided at an end of the first housing or the second housing on the side where the hinge mechanism is located.
JP2006354346A 2006-12-28 2006-12-28 Portable wireless terminal Expired - Fee Related JP4905126B2 (en)

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