JP3923404B2 - Portable machine - Google Patents

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Publication number
JP3923404B2
JP3923404B2 JP2002294526A JP2002294526A JP3923404B2 JP 3923404 B2 JP3923404 B2 JP 3923404B2 JP 2002294526 A JP2002294526 A JP 2002294526A JP 2002294526 A JP2002294526 A JP 2002294526A JP 3923404 B2 JP3923404 B2 JP 3923404B2
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JP
Japan
Prior art keywords
battery
housing
voltage
receiver
antenna
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Expired - Fee Related
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JP2002294526A
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Japanese (ja)
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JP2004131937A (en
Inventor
伸一 上田
真一 有江
健一 澤田
一彦 末岡
直樹 林
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Honda Motor Co Ltd
Panasonic Corp
Panasonic Holdings Corp
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Honda Motor Co Ltd
Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Priority to JP2002294526A priority Critical patent/JP3923404B2/en
Publication of JP2004131937A publication Critical patent/JP2004131937A/en
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Publication of JP3923404B2 publication Critical patent/JP3923404B2/en
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  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、アンテナが接続された電子回路をハウジングの内部に収納し、電子回路に動作電源を供給する電池をハウジングに対して着脱自在とした携帯機に関する。
【0002】
【従来の技術】
携帯機を所持した者が車両に設けた施錠ボタンあるいは解錠ボタンを押すことでドアを施錠あるいは解錠できるようにした車両用遠隔施錠・解錠装置において、携帯機の電池が消耗すると車両側に設けた報知手段が作動して電池切れを報知するものが、下記特許文献1により公知である。
【0003】
また車両ユーザーが所持している携帯機から車両に制御信号を発射することでドアの施錠・解錠を行う車両用遠隔施錠・解錠装置において、携帯機の押しボタンを押して制御信号が出力されているときに、携帯機に設けたLEDを点灯または点滅させることで、制御信号が出力されていることを確認できるようにしたものが、下記特許文献2により公知である。
【0004】
【特許文献1】
特開昭60−64272号公報
【0005】
【特許文献2】
実用新案登録第2584259号公報
【0006】
【発明が解決しようとする課題】
ところで上記特許文献1に記載されたものは、使用中の携帯機の電池が消耗したことを報知することは可能であるが、携帯機に電池をセットする際に、その電池が充分な残容量を有するものか、残容量が殆どないものかを判定することができないため、誤って古い電池をセットした場合に予想外に早く電池切れになってシステムが作動不能になる虞がある。
【0007】
また上記特許文献2に記載されたものは、携帯機の押しボタンを押してLEDの発光状態を確認することで電池の残容量を知ることができるが、携帯機に押しボタンを設ける必要があるために、薄型化を要求されるカード型の携帯機では押しボタンを設けたことで厚さが増加してしまう問題がある。
【0008】
本発明は前述の事情に鑑みてなされたもので、携帯機の薄型化を維持しながら、その電池の消耗状態を確認できるようにすることを目的とする。
【0009】
【課題を解決するための手段】
上記目的を達成するために、請求項1に記載された発明によれば、アンテナが接続された電子回路をハウジングの内部に収納し、電子回路に動作電源を供給する電池をハウジングに対して着脱自在とした携帯機において、電池を交換したときに、その交換後の新たな電池に、該新たな電池の電圧チェックのための負荷を作用させ、その負荷が作用した状態の該新たな電池から印加される電圧で電子回路が作動可能であれば、報知手段を所定時間だけ作動させることを特徴とする携帯機が提案される。
【0010】
上記構成によれば、携帯機の電池を交換したときに、その交換後の新たな電池に、該新たな電池の電圧チェックのための負荷を作用させ、その負荷が作用した状態の該新たな電池から印加される電圧で電子回路が作動可能であれば、報知手段を所定時間だけ作動させるので、誤って携帯機に消耗した電池をセットすることが防止される。また報知手段が作動して電子回路が作動可能であるにも拘わらずにシステムが作動しない場合は、携帯機以外のシステムに異常があると判定することができる。更に、電池のチェックを開始するための特別のスイッチやボタンが不要であるため、携帯機のハウジングが厚型化するのを防止することができる。
【0011】
また請求項2に記載された発明によれば、請求項1の構成に加えて、交換後の新たな電池の前記電圧を予め設定した基準電圧と比較し、比較結果に基づいて報知手段の作動態様を異ならせることを特徴とする携帯機が提案される。
【0012】
上記構成によれば、交換した電池の電圧を予め設定した基準電圧と比較した結果に基づいて報知手段の作動態様を異ならせるので、報知手段の作動態様に基づいて電池の消耗度合いを認識することができ、電池が消耗している場合には新しい電池を予め準備することができて利便性が向上する。
【0013】
尚、実施例のLFアンテナ16,17,18およびRFアンテナ19は本発明のアンテナに対応し、実施例のLED35は本発明の報知手段に対応する。
【0014】
【発明の実施の形態】
以下、本発明の実施形態を、添付図面に示した本発明の実施例に基づいて説明する。
【0015】
図1〜図14は本発明の一実施例を示すもので、図1は車両用遠隔施錠・解錠装置の全体構成を示す図、図2は車両用遠隔施錠・解錠装置のブロック図、図3は携帯送・受信機の全体平面図、図4は携帯送・受信機の分解斜視図、図5は携帯送・受信機のアッパーハウジングを外した状態を示す図、図6は図3の6−6線拡大断面図、図7は電池ホルダの平面図、図8は図3の要部拡大図(アッパーハウジングを外した状態)、図9は図8の9−9線拡大断面図、図10は図8の10−10線拡大断面図、図11は図8に対応する作用説明図、図12は図10に対応する作用説明図、図13は電池の電圧判定回路のブロック図、図14は電池の電圧判定ルーチンのフローチャートである。
【0016】
図1および図2に示すように、キーを使用せずに車両Vのドアの施錠および解錠を行うための車両用遠隔施錠・解錠装置は、車両ユーザーがポケットやバッグに入れて持ち運ぶためのカード型の携帯送・受信機11を含んでいる。携帯送・受信機11のコントロールユニット12には、LF(低周波数)受信機13と、RF(ラジオ周波数)送信機14と、RF(ラジオ周波数)受信機15とが接続されており、LF受信機13には3個のLFアンテナ16,17,18が接続されるとともに、RF送信機14およびRF受信機15には共通のRFアンテナ19が接続される。
【0017】
一方、車両V側に設けられたコントロールユニット20には、左側のドア21Lに設けた施錠スイッチ22Lおよび解錠スイッチ23Lと、右側のドア21Rに設けた施錠スイッチ22Rおよび解錠スイッチ23Rと、LF送信機24と、RF送信機25と、RF受信機26と、ドアロックアクチュエータ27とが接続されており、LF送信機24には左右のLFアンテナ28L,28Rが接続されるとともに、RF送信機25およびRF受信機26には共通のRFアンテナ29が接続される。
【0018】
しかして、携帯送・受信機11を身に付けた車両ユーザーが左側のドア21Lの解錠スイッチ23Lあるいは右側のドア21Rの解錠スイッチ23Rを押すと、車両V側のLFアンテナ28L,28RからIDリクエスト信号が送信され、それをLFアンテナ16〜18で受信した携帯送・受信機11は、コントロールユニット12に記憶しているID信号をRFアンテナ19から送信する。ID信号を車両V側のRFアンテナ29で受信したコントロールユニット20は、そのIDが正規のIDであるか否かを確認し、正規のIDであれば乱数信号xをRFアンテナ29から送信する。
【0019】
乱数信号xをRFアンテナ19で受信した携帯送・受信機11は、コントロールユニット12に記憶したプログラムに基づいて乱数信号xから算出した関数信号f(x)をRFアンテナ19から送信し、その関数信号f(x)を車両V側のRFアンテナ29で受信したコントロールユニット20は、そこで乱数信号xから算出した関数信号f(x)と前記受信した関数信号f(x)とを比較し、両者が一致していればドアロックアクチュエータ27を作動させてドア21L,21Rを解錠する。
【0020】
同様にして、携帯送・受信機11を身に付けた車両ユーザーが左側のドア21Lの施錠スイッチ22L或いは右側のドア21Rの施錠スイッチ22Rを押すと、コントロールユニット20がロックアクチュエータ27を作動させてドア21L,21Rを施錠する。
【0021】
次に、図3〜図12に基づいて携帯送・受信機11の構造を説明する。
【0022】
図3〜図5に示すように、携帯送・受信機11は全体として長方形状を成すカード型のものであり、財布等に収納し易いように厚さが極めて薄く形成されている。以下、長方形を成す携帯送・受信機11の四辺を右辺R、左辺L、上辺Uおよび下辺Dと呼ぶ(図3参照)。
【0023】
携帯送・受信機11のハウジング30は、合成樹脂で長方形状に形成したロアハウジング31およびアッパーハウジング32に2分割されており、ロアハウジング31の右辺R、左辺Lおよび下辺Dに沿って形成された溝状の凹部31aと、上辺U寄りの位置に形成された3個の溝状の凹部31b,31c,31dと、前記凹部31aの中央付近に形成されたピン状の凸部31eとに、アッパーハウジング32の右辺R、左辺Lおよび下辺Dに沿って形成されたリブ状の凸部32aと、上辺U寄りの位置に形成された3個のリブ状の凸部32b,32c,32dと、前記凸部32aの中央付近に形成された孔状の凹部32eとがそれぞれ嵌合し、それらの嵌合部においてロアハウジング31およびアッパーハウジング32が溶着より固定される。
【0024】
アッパーハウジング32の内面には、その長さ方向(右辺Rおよび左辺L方向)に延びる直線状の補強リブ32fと、その長さ方向および幅方向(上辺Uおよび下辺D方向)に延びる十字状の補強リブ32g,32hとが形成されており、十字状の補強リブ32g,32hの交差部に前記凹部32eが位置している。またアッパーハウジング32には、その表裏に貫通する1個の貫通孔32iが形成される。更に、ロアハウジング31およびアッパーハウジング32を結合する際に、それらを相互に位置決めするために、ロアハウジング31に形成された2個の位置決め孔31f,31fに、アッパーハウジング32に形成された2個の位置決めピン32j,32jが嵌合する。
【0025】
ロアハウジング31およびアッパーハウジング32間に形成された空間に収納される長方形状の基板33の表面には、携帯送・受信機11の右辺Rに臨む周縁部に沿って前記RFアンテナ19が固定される。軸線が相互に直交するように基板33に固定された3個のLFアンテナ16,17,18のうち、2個のLFアンテナ16,17はフェライトアンテナで構成され、残りの1個のLFアンテナ18はボビンを持たない長方形のエアコイルアンテナで構成されている。そしてエアコイルアンテナで構成されたLFアンテナ18は、携帯送・受信機11の下辺D、左辺Lおよび上辺Uに臨む基板33の周縁部とRFアンテナ19とに沿うように固定される。更に、基板33の表面には携帯送・受信機11の受信回路を含む電子回路を構成する多数の電子部品34…と1個のLED(発光ダイオード)35とが固定され、また基板33の中央部にはロアハウジング31のピン状の凸部31eが緩く貫通する貫通孔33aが形成される。貫通孔33aの裏側にはLED35が臨んでおり、LED35が発する光を貫通孔33aを通して視認することができる。
【0026】
携帯送・受信機11の上辺Uに臨む基板33の周縁部に、何れも弾性を有する金属板で構成された2個のプラス端子36,36と2個のマイナス端子37,37とが固定される。各々のプラス端子36は略180°屈曲し、その先端の接点36aは基板33の周縁部に沿って延びている。一方、各々のマイナス端子37は携帯送・受信機11の上辺Uに向かって延び、その先端に接点37aが形成される。
【0027】
図3および図6から明らかなように、アッパーハウジング32に設けた直線状の補強リブ32fが、RFアンテナ19とLFアンテナ18との間に形成された隙間αを遮るように延びている。従って、ハウジング30の厚さを増加させることなく、補強リブ32fによってハウジング30の剛性を高めて外力による曲がりを抑制し、その内部に収納した基板33に固定した電子部品34…等の損傷やハンダ付け部分の損傷を防止することができる。しかも補強リブ32fがRFアンテナ19およびLFアンテナ18間の絶縁壁を兼ねるので、LFアンテナ18にボビンを設けてRFアンテナ19との短絡を防止する必要がなくなり、部品点数の削減およびスペースの削減に寄与することができる。
【0028】
また基板33の表面には電子部品等が配置されていない十字状の隙間β,γが形成されており、この隙間β,γにアッパーハウジング32の十字状の補強リブ32g,32hが配置される。この十字状の補強リブ32g,32hの剛性向上効果により、ハウジング30の長さ方向および幅方向の曲がりを抑制し、その内部に収納した基板33に固定した電子部品34…等の損傷やハンダ付け部分の損傷を防止することができる。特に、十字状の補強リブ32g,32hは長方形のLFアンテナ18の内部に配置されおり、その4個の先端部は基板33の周縁部の手前位置で終わっているため、ハウジング30が外力で曲げられたときに補強リブ32g,32hが基板33の端縁に接触して大きな荷重が加わるのを防止することができる。
【0029】
しかも、電子回路を装着した基板33をハウジング30の内部に収納した状態で、基板33はロアハウジング31およびアッパーハウジング32に強固に固定されておらず、前後左右方向および上下方向(厚さ方向)に僅かに移動可能な隙間を有している。それに加えて、補強リブ32f,32g,32hの高さ方向の先端と基板33の表面との間に隙間が形成されているので(図6参照)、ハウジング30が曲げられたときにも、その内部に収納された基板33に曲げ荷重が伝達され難くなり、基板33の変形を最小限に抑えて耐久性を向上させることができる。
【0030】
図7〜図10に示すように、電池ホルダ38は、合成樹脂製のホルダ本体39と、このホルダ本体39に固定された金属製のキャップ40とを備える。ホルダ本体39には2個のコイン型の電池41,41を支持する2個の支持孔39a,39aが形成されており、その支持孔の周縁に段付きの電池支持面39b,39bが形成される。ホルダ本体39の両端部には、先端に係止爪39c,39cが形成された腕部39d,39dが設けられており、これらの係止爪39c,39cが係合可能な2個の係止部31g,31g(図8参照)がロアハウジング31に形成される。
【0031】
更に、ホルダ本体39の一対の腕部39d,39dの内側に前記支持孔39a,39aの一部を囲む第1、第2突起部39e,39fが形成されており、第1突起部39eに長さは第2突起部39fの長さよりも短く形成される。一方、ロアハウジング31には、前記第1突起部39eおよび第2突起部39fと協働するストッパ部31hが形成される(図8参照)。
【0032】
図7から明らかなように、電池41は、その一側面と外周面とによってプラス極41aが構成され、その他側面によってマイナス極41bが構成されており、外周面および他側面間の段部41cがホルダ本体39の電池支持面39bに嵌合するように支持孔39aに支持される。2個の電池41,41を電池ホルダ38に保持してハウジング30の内部に挿入すると、ホルダ本体39の弾性を有する一対の腕部39d,39dの先端に設けた係止爪39c,39cがロアハウジング31の係止部31g,31gに係合することで、電池ホルダ38がハウジング30に結合される。
【0033】
この状態で、電池41,41のプラス極41a,41aの外周部が基板33に設けたプラス端子36,36の接点36a,36aに弾性的に接触するとともに、電池41,41のマイナス極41b,41bが基板33に設けたマイナス端子37,37の接点37a,37aに弾性的に接触することで、携帯送・受信機11の電子回路が作動する。
【0034】
前述したように、基板33はハウジング30の内部に固定されておらず、僅かに移動できるように隙間が設けられているが、電池ホルダ38をハウジング30に結合すると、電池41,41の外周部が基板33のプラス端子36,36に当接して図8の矢印A方向に押圧することで、プラス端子36,36の弾発力で基板33が付勢されてハウジング30内面の下辺D側に押し付けられるため、基板33のガタつきや異音の発生を防止することができる。
【0035】
このように、プラス端子36,36の弾発力を利用することで、基板33をハウジング30に固定するための特別の固定部材や基板33をハウジング30に組み付ける組付工数を削減することができ、しかもハウジング30に加わる曲げや衝撃が基板33に伝わり難くすることができる。特に、基板33はハウジング30に対して前後左右に移動自在なだけでなく、厚さ方向にも移動自在であるため、ハウジング30が曲げられたときにハウジング30の変形量に比べて基板33の変形量を小さくすることができ、基板33に取り付けられた電子部品34等の損傷やハンダ付け部分の損傷を防止することができる。
【0036】
電池41,41を電池ホルダ38のホルダ本体39の支持孔39a,39aに表裏逆に装着すると、電池41,41の段部41c,41cとホルダ本体39の電池支持面39b,39bとが一致せず、電池41,41のマイナス極41b,41bがホルダ本体39から厚さ方向に突出してしまい、電池ホルダ38をハウジング30に挿入し難くなることで、電池41,41が表裏逆に装着されていることに気づき易くなる。
【0037】
仮に、電池41,41が表裏逆に装着されていることに気づかずに電池ホルダ38をハウジング30に無理に挿入した場合、図12に示すように、ハウジング30が撓むことで電池ホルダ38は一応ハウジング30に結合可能である。しかしながら、電池41,41の一側面のプラス極41a,41aが基板33のマイナス端子37,37の接点37a,37aに接触し、かつ電池41,41の外周部のプラス極41a,41aが基板33のプラス端子36,36の接点36a,36aに接触するために、つまり基板33のプラス端子36,36およびマイナス端子37,37が共に電池41,41のプラス極41a,41aに接触するために、電子回路に逆電流が流れて破損の原因になることが未然に防止される。
【0038】
また電池41,41を電池ホルダ38に正しく装着しても、電池ホルダ38を表裏逆にしてハウジング30に装着すると電子回路に給電することができなくなる。図8から明らかなように、電池ホルダ38の表裏に誤りがなければ、ホルダ本体39の短い方の第1突起部39eがロアハウジング31のストッパ部31hと干渉しないため、電池ホルダ38を正しくハウジング30に結合することができる。それに対して、図11から明らかなように、電池ホルダ38を表裏逆にしてハウジング30に挿入しようとすると、ホルダ本体39の長い方の第2突起部39fがロアハウジング31のストッパ部31hと干渉してしまい(図11のp点参照)、電池ホルダ38をハウジング30内に完全に挿入できなくなることで、電池ホルダ38の誤組みを確実に防止することができる。
【0039】
尚、電池ホルダ38をハウジング30から外すには、ホルダ本体39の一対の腕部39d,39dを2本の指で内向きに押して係止爪39c,39cを係止部31g,31gから外した後、腕部39d,39dを掴んだまま電池ホルダ38をハウジング30から引き抜けば良い。
【0040】
次に、携帯送・受信機11の電池41,41を交換したときに、その電池41,41が新しいものであるか否かを判定する機能について説明する。
【0041】
図13に示すように、携帯送・受信機11のコントロールユニット20に設けられた比較機51と電池41,41との間に、電源回路52と、リセット回路53と、基準電圧発生回路53とが接続されており、比較器51は電池41,41の電圧信号に基づいてLED35の点灯を制御する。
【0042】
しかして、図14のフローチャートのステップS1で電池41,41を交換した電池ホルダ38がハウジング30に結合されると、リセット回路53からの信号でリセット動作が開始される。続くステップS2で一定時間が経過するのを待ち、電池41,41が電子回路に接続された瞬間のサージ電流による電圧の変動が収まった後に、ステップS3でダミー負荷(例えば、RF受信回路)をオンさせる。ダミー負荷を作用させる理由は、消耗した古い電池41,41でも、負荷が作用しない状態では新品の電池41,41と同じ電圧を示す場合があるからである。続くステップS4で一定時間が経過して電池41,41の電圧が安定すると、ステップS5で電圧を読み込み、ステップS6でダミー負荷をオフさせる。
【0043】
続くステップS7で、前記ステップS5で読み込んだ電圧が携帯送・受信機11の動作可能電圧よりも高く、ステップS8で、前記ステップS5で読み込んだ電圧が新品の電池41,41の基準電圧(基準電圧発生回路53が発生する電圧)よりも高い場合には、その電池41,41が新品であると判断し、ステップS9でLEDを所定時間だけ点灯させる正常表示を実行する。一方、前記ステップS8で電池41,41の電圧が前記基準電圧よりも低い場合には、その電池電池41,41が新品でないと判断し、ステップS10でLEDを所定時間だけ点滅させる警告表示を実行する。また前記ステップS7で電池41,41の電圧が前記動作可能電圧よりも低ければ、ステップS11でLEDを消灯させたままにして表示を実行しない。
【0044】
尚、前記ステップS1でリセットが行われない場合、あるいは前記ステップS9〜S11で電池41,41の電圧の判定が行われた後は、ステップS12で携帯送・受信機11の通常動作が実行される。
【0045】
以上のように、携帯送・受信機11の電池41,41を交換したときに、LED35が点灯状態になれば、その電池41,41が新品であることを確認することができる。また電池41,41の交換時にLED35が点滅状態になれば、その電池41,41が古いことが確認できるので、新品の電池41,41を購入しておく等の手だてが可能になって利便性が向上する。また電池41,41の交換時にLED35が消灯状態になれば、その電池41,41では携帯送・受信機11を作動させられないことが確認できるので、新品の電池41,41との速やかな交換を促すことができる。
【0046】
更に、車両用遠隔施錠・解錠装置が作動しなくなったとき、携帯送・受信機11の電池41,41を一旦取り外した後にリセットし、そのときにLED35が消灯状態になれば、電池41,41の消耗により車両用遠隔施錠・解錠装置が作動しなくなったと判断することができ、LED35が点灯状態あるいは点滅状態になれば、携帯送・受信機11以外の車両用遠隔施錠・解錠装置に異常があると判断することができる。
【0047】
更にまた、携帯送・受信機11の電池41,41を一旦取り外した後にリセットすることで、電池41,41の状態を示すLED35を作動させるので、携帯送・受信機11に特別のチェックボタン等を設ける必要がなくなり、携帯送・受信機11が厚くなるのを回避することができる。
【0048】
以上、本発明の実施例を説明したが、本発明はその要旨を逸脱しない範囲で種々の設計変更を行うことが可能である。
【0049】
例えば、本発明の携帯機の用途は、車両Vのドア21L,21Rの施錠および解錠を行うための車両用遠隔施錠・解錠装置に限定されるものではない。
【0050】
また報知手段は実施例のLED35に限定されず、ランプ等の発光手段やブザー等の発音手段であっても良い。
【0051】
【発明の効果】
以上のように請求項1に記載された発明によれば、携帯機の電池を交換したときに、その交換後の新たな電池に、該新たな電池の電圧チェックのための負荷を作用させ、その負荷が作用した状態の該新たな電池から印加される電圧で電子回路が作動可能であれば、報知手段を所定時間だけ作動させるので、電池交換時に誤って携帯機に消耗した電池をセットすることが防止される。また電池交換時に報知手段が作動して電子回路が作動可能であるにも拘わらずにシステムが作動しない場合は、携帯機以外のシステムに異常があると判定することができる。更に、電池のチェックを開始するための特別のスイッチやボタンが不要であるため、携帯機のハウジングが厚型化するのを防止することができる。
【0052】
また請求項2に記載された発明によれば、交換後の新たな電池の電圧を予め設定した基準電圧と比較した結果に基づいて報知手段の作動態様を異ならせるので、報知手段の作動態様に基づいて電池の消耗度合いを認識することができ、電池が消耗している場合には新しい電池を予め準備することができて利便性が向上する。
【図面の簡単な説明】
【図1】 車両用遠隔施錠・解錠装置の全体構成を示す図
【図2】 車両用遠隔施錠・解錠装置のブロック図
【図3】 携帯送・受信機の全体平面図
【図4】 携帯送・受信機の分解斜視図
【図5】 携帯送・受信機のアッパーハウジングを外した状態を示す図
【図6】 図3の6−6線拡大断面図
【図7】 電池ホルダの平面図
【図8】 図3の要部拡大図(アッパーハウジングを外した状態)
【図9】 図8の9−9線拡大断面図
【図10】 図8の10−10線拡大断面図
【図11】 図8に対応する作用説明図
【図12】 図10に対応する作用説明図
【図13】 電池の電圧判定回路のブロック図
【図14】 電池の電圧判定ルーチンのフローチャート
【符号の説明】
16 LFアンテナ(アンテナ)
17 LFアンテナ(アンテナ)
18 LFアンテナ(アンテナ)
19 RFアンテナ(アンテナ)
30 ハウジング
35 LED(報知手段)
41 電池
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a portable device in which an electronic circuit to which an antenna is connected is housed in a housing, and a battery that supplies operating power to the electronic circuit is detachable from the housing.
[0002]
[Prior art]
In a vehicle remote locking / unlocking device that allows a person with a portable device to lock or unlock a door by pressing a locking button or unlocking button provided on the vehicle, when the battery of the portable device is depleted, the vehicle side Japanese Patent Application Laid-Open No. 2004-151867 discloses that the notification means provided in the device operates to notify the battery exhaustion.
[0003]
Also, in a remote locking / unlocking device for a vehicle that locks and unlocks a door by emitting a control signal to the vehicle from a portable device owned by the vehicle user, the control signal is output by pressing the push button of the portable device Patent Document 2 below discloses that a control signal is output by turning on or blinking an LED provided in a portable device.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 60-64272
[Patent Document 2]
Utility Model Registration No. 2584259 Publication [0006]
[Problems to be solved by the invention]
By the way, although what was described in the said patent document 1 can alert | report that the battery of the portable apparatus in use was exhausted, when setting a battery in a portable apparatus, the battery has sufficient remaining capacity. Therefore, if the old battery is set by mistake, the battery may run out unexpectedly and the system may become inoperable.
[0007]
Moreover, although what was described in the said patent document 2 can know the remaining capacity of a battery by pushing the push button of a portable machine and confirming the light emission state of LED, it is necessary to provide a push button in a portable machine. In addition, there is a problem that the thickness increases by providing a push button in a card-type portable device that is required to be thin.
[0008]
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to make it possible to check the consumption state of the battery while maintaining the thinness of the portable device.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, an electronic circuit to which an antenna is connected is housed in a housing, and a battery for supplying operating power to the electronic circuit is attached to and detached from the housing. in freely and the portable unit, when replacing the battery, the new battery after the replacement, by the action of the load for the voltage check of the new cell, from the new cell of the condition in which the load is applied If the electronic circuit is operable with the applied voltage, a portable device is proposed in which the notification means is operated for a predetermined time.
[0010]
According to the above configuration, when the battery of the portable device is replaced, a load for checking the voltage of the new battery is applied to the new battery after the replacement , and the new battery in a state in which the load is applied is applied. If the electronic circuit can be operated with the voltage applied from the battery , the notification means is operated for a predetermined time, so that it is possible to prevent the battery from being accidentally set in the portable device. Further, when the system does not operate although the notification means is activated and the electronic circuit is operable, it can be determined that there is an abnormality in the system other than the portable device. Furthermore, since a special switch or button for starting the battery check is unnecessary, it is possible to prevent the portable device housing from becoming thicker.
[0011]
According to the invention described in claim 2, in addition to the first aspect, as compared to the reference voltage the voltage set in advance of the new battery after replacement, the operation of the informing means on the basis of the comparison result A portable device is proposed that is characterized by different aspects.
[0012]
According to the above configuration, since the operation mode of the notification unit is changed based on the result of comparing the voltage of the replaced battery with a preset reference voltage, the degree of battery consumption is recognized based on the operation mode of the notification unit. If the battery is exhausted, a new battery can be prepared in advance, which improves convenience.
[0013]
The LF antennas 16, 17, 18 and the RF antenna 19 of the embodiment correspond to the antenna of the present invention, and the LED 35 of the embodiment corresponds to the notification means of the present invention.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below based on the embodiments of the present invention shown in the accompanying drawings.
[0015]
1 to 14 show an embodiment of the present invention. FIG. 1 is a diagram showing the overall configuration of a vehicle remote locking / unlocking device. FIG. 2 is a block diagram of the vehicle remote locking / unlocking device. 3 is an overall plan view of the portable transmitter / receiver, FIG. 4 is an exploded perspective view of the portable transmitter / receiver, FIG. 5 is a diagram showing a state in which the upper housing of the portable transmitter / receiver is removed, and FIG. 6 is an enlarged sectional view taken along line 6-6, FIG. 7 is a plan view of the battery holder, FIG. 8 is an enlarged view of essential parts of FIG. 3 (with the upper housing removed), and FIG. 9 is an enlarged sectional view taken along line 9-9 of FIG. 10 is an enlarged cross-sectional view taken along line 10-10 of FIG. 8, FIG. 11 is an operation explanatory diagram corresponding to FIG. 8, FIG. 12 is an operation explanatory diagram corresponding to FIG. 10, and FIG. FIG. 14 is a flowchart of a battery voltage determination routine.
[0016]
As shown in FIGS. 1 and 2, a remote locking / unlocking device for a vehicle for locking and unlocking a door of a vehicle V without using a key is carried by a vehicle user in a pocket or bag. The card-type portable transmitter / receiver 11 is included. An LF (low frequency) receiver 13, an RF (radio frequency) transmitter 14, and an RF (radio frequency) receiver 15 are connected to the control unit 12 of the portable transmitter / receiver 11, and LF reception is performed. Three LF antennas 16, 17, and 18 are connected to the machine 13, and a common RF antenna 19 is connected to the RF transmitter 14 and the RF receiver 15.
[0017]
On the other hand, the control unit 20 provided on the vehicle V side includes a lock switch 22L and an unlock switch 23L provided on the left door 21L, a lock switch 22R and an unlock switch 23R provided on the right door 21R, and LF. A transmitter 24, an RF transmitter 25, an RF receiver 26, and a door lock actuator 27 are connected. The left and right LF antennas 28L and 28R are connected to the LF transmitter 24, and the RF transmitter. 25 and the RF receiver 26 are connected to a common RF antenna 29.
[0018]
Thus, when the vehicle user wearing the portable transmitter / receiver 11 presses the unlocking switch 23L of the left door 21L or the unlocking switch 23R of the right door 21R, the LF antennas 28L and 28R on the vehicle V side The portable transmitter / receiver 11 that has received the ID request signal and received it by the LF antennas 16 to 18 transmits the ID signal stored in the control unit 12 from the RF antenna 19. The control unit 20 that has received the ID signal by the RF antenna 29 on the vehicle V side checks whether or not the ID is a regular ID. If the ID is a regular ID, the control unit 20 transmits a random number signal x from the RF antenna 29.
[0019]
The portable transmitter / receiver 11 that has received the random number signal x by the RF antenna 19 transmits the function signal f (x) calculated from the random number signal x based on the program stored in the control unit 12 from the RF antenna 19, and the function. The control unit 20 that receives the signal f (x) by the RF antenna 29 on the vehicle V side compares the function signal f (x) calculated from the random number signal x with the received function signal f (x). Are matched, the door lock actuator 27 is actuated to unlock the doors 21L and 21R.
[0020]
Similarly, when the vehicle user wearing the portable transmitter / receiver 11 presses the lock switch 22L of the left door 21L or the lock switch 22R of the right door 21R, the control unit 20 operates the lock actuator 27. The doors 21L and 21R are locked.
[0021]
Next, the structure of the portable transmitter / receiver 11 will be described with reference to FIGS.
[0022]
As shown in FIGS. 3 to 5, the portable transmitter / receiver 11 is a card type having a rectangular shape as a whole, and is formed to be extremely thin so that it can be easily stored in a wallet or the like. Hereinafter, the four sides of the rectangular portable transmitter / receiver 11 are referred to as a right side R, a left side L, an upper side U, and a lower side D (see FIG. 3).
[0023]
The housing 30 of the portable transmitter / receiver 11 is divided into a lower housing 31 and an upper housing 32 formed in a rectangular shape with a synthetic resin, and is formed along the right side R, the left side L, and the lower side D of the lower housing 31. A groove-shaped recess 31a, three groove-shaped recesses 31b, 31c, 31d formed near the upper side U, and a pin-shaped protrusion 31e formed near the center of the recess 31a. Rib-shaped convex portions 32a formed along the right side R, left side L and lower side D of the upper housing 32, and three rib-shaped convex portions 32b, 32c, 32d formed near the upper side U; A hole-like concave portion 32e formed near the center of the convex portion 32a is fitted, and the lower housing 31 and the upper housing 32 are fixed by welding at the fitting portions. .
[0024]
On the inner surface of the upper housing 32, a linear reinforcing rib 32f extending in the length direction (right side R and left side L directions) and a cross-like shape extending in the length direction and width direction (upper side U and lower side D directions) Reinforcing ribs 32g and 32h are formed, and the recess 32e is located at the intersection of the cross-shaped reinforcing ribs 32g and 32h. Further, the upper housing 32 is formed with one through hole 32 i penetrating the front and back. Further, in order to position the lower housing 31 and the upper housing 32 with each other, the two positioning holes 31f and 31f formed in the lower housing 31 have two pieces formed in the upper housing 32 in order to position them relative to each other. The positioning pins 32j and 32j are fitted.
[0025]
The RF antenna 19 is fixed to the surface of the rectangular substrate 33 accommodated in the space formed between the lower housing 31 and the upper housing 32 along the peripheral edge facing the right side R of the portable transmitter / receiver 11. The Of the three LF antennas 16, 17, 18 fixed to the substrate 33 so that the axes are orthogonal to each other, the two LF antennas 16, 17 are composed of ferrite antennas, and the remaining one LF antenna 18. Consists of a rectangular air coil antenna without a bobbin. The LF antenna 18 formed of an air coil antenna is fixed along the peripheral edge of the substrate 33 facing the lower side D, the left side L, and the upper side U of the portable transmitter / receiver 11 and the RF antenna 19. Further, a large number of electronic components 34 and one LED (light emitting diode) 35 constituting an electronic circuit including a receiving circuit of the portable transmitter / receiver 11 are fixed to the surface of the substrate 33, and the center of the substrate 33 is fixed. A through hole 33a through which the pin-like convex portion 31e of the lower housing 31 penetrates loosely is formed in the portion. The LED 35 faces the back side of the through hole 33a, and the light emitted from the LED 35 can be viewed through the through hole 33a.
[0026]
Two plus terminals 36, 36 and two minus terminals 37, 37 each made of a metal plate having elasticity are fixed to the periphery of the substrate 33 facing the upper side U of the portable transmitter / receiver 11. The Each plus terminal 36 is bent by approximately 180 °, and a contact 36 a at the tip thereof extends along the peripheral edge of the substrate 33. On the other hand, each minus terminal 37 extends toward the upper side U of the portable transmitter / receiver 11, and a contact point 37 a is formed at the tip thereof.
[0027]
As is clear from FIGS. 3 and 6, the linear reinforcing rib 32 f provided in the upper housing 32 extends so as to block the gap α formed between the RF antenna 19 and the LF antenna 18. Therefore, without increasing the thickness of the housing 30, the rigidity of the housing 30 is increased by the reinforcing rib 32f to suppress the bending due to the external force, and damage or soldering of the electronic components 34 fixed to the board 33 housed in the housing 30 is prevented. Damage to the attachment portion can be prevented. In addition, since the reinforcing rib 32f also serves as an insulating wall between the RF antenna 19 and the LF antenna 18, it is not necessary to provide a bobbin in the LF antenna 18 to prevent a short circuit with the RF antenna 19, thereby reducing the number of parts and the space. Can contribute.
[0028]
Further, cross-shaped gaps β and γ in which no electronic components are arranged are formed on the surface of the substrate 33, and the cross-shaped reinforcing ribs 32g and 32h of the upper housing 32 are arranged in the gaps β and γ. . Due to the effect of improving the rigidity of the cross-shaped reinforcing ribs 32g and 32h, the bending of the housing 30 in the length direction and the width direction is suppressed, and damage or soldering of the electronic components 34 fixed to the board 33 housed therein is performed. Damage to the part can be prevented. In particular, the cross-shaped reinforcing ribs 32g and 32h are disposed inside the rectangular LF antenna 18, and their four tip ends end in front of the peripheral edge of the substrate 33, so that the housing 30 is bent by an external force. In this case, it is possible to prevent the reinforcing ribs 32g and 32h from coming into contact with the edge of the substrate 33 and applying a large load.
[0029]
In addition, in a state where the board 33 on which the electronic circuit is mounted is housed in the housing 30, the board 33 is not firmly fixed to the lower housing 31 and the upper housing 32, and the front-rear and left-right directions and the up-down direction (thickness direction). There is a gap that is slightly movable. In addition, since a gap is formed between the height direction ends of the reinforcing ribs 32f, 32g, and 32h and the surface of the substrate 33 (see FIG. 6), even when the housing 30 is bent, The bending load is less likely to be transmitted to the substrate 33 housed therein, and the deformation of the substrate 33 can be minimized and the durability can be improved.
[0030]
As shown in FIGS. 7 to 10, the battery holder 38 includes a holder body 39 made of synthetic resin, and a metal cap 40 fixed to the holder body 39. The holder body 39 is formed with two support holes 39a and 39a for supporting the two coin-type batteries 41 and 41, and stepped battery support surfaces 39b and 39b are formed at the periphery of the support holes. The At both ends of the holder main body 39, arm portions 39d and 39d having locking claws 39c and 39c formed at the tips are provided, and two locking latches that can be engaged with the locking claws 39c and 39c. Portions 31g and 31g (see FIG. 8) are formed in the lower housing 31.
[0031]
Furthermore, first and second projecting portions 39e and 39f are formed inside the pair of arm portions 39d and 39d of the holder main body 39 so as to surround a part of the support holes 39a and 39a, and the first projecting portion 39e is long. The length is shorter than the length of the second protrusion 39f. On the other hand, the lower housing 31 is formed with a stopper portion 31h that cooperates with the first protrusion 39e and the second protrusion 39f (see FIG. 8).
[0032]
As is clear from FIG. 7, the battery 41 has a positive electrode 41a formed by one side surface and an outer peripheral surface thereof, and a negative electrode 41b formed by the other side surface. A step 41c between the outer peripheral surface and the other side surface is formed. The holder body 39 is supported by the support hole 39a so as to be fitted to the battery support surface 39b. When the two batteries 41, 41 are held by the battery holder 38 and inserted into the housing 30, the latching claws 39c, 39c provided at the tips of the pair of arms 39d, 39d having elasticity of the holder body 39 are lowered. The battery holder 38 is coupled to the housing 30 by engaging with the locking portions 31 g and 31 g of the housing 31.
[0033]
In this state, the outer peripheries of the positive electrodes 41a and 41a of the batteries 41 and 41 elastically contact the contacts 36a and 36a of the positive terminals 36 and 36 provided on the substrate 33, and the negative electrodes 41b and 41b of the batteries 41 and 41, respectively. The electronic circuit of the portable transmitter / receiver 11 is operated by elastically contacting 41b with the contacts 37a and 37a of the minus terminals 37 and 37 provided on the substrate 33.
[0034]
As described above, the substrate 33 is not fixed inside the housing 30 and is provided with a gap so as to be slightly movable. However, when the battery holder 38 is coupled to the housing 30, the outer peripheral portions of the batteries 41 and 41 are provided. 8 abuts against the plus terminals 36 and 36 of the substrate 33 and presses in the direction of arrow A in FIG. 8, whereby the substrate 33 is urged by the elastic force of the plus terminals 36 and 36 toward the lower side D of the inner surface of the housing 30. Since it is pressed, it is possible to prevent the substrate 33 from rattling or generating abnormal noise.
[0035]
As described above, by using the elastic force of the plus terminals 36, 36, it is possible to reduce a special fixing member for fixing the substrate 33 to the housing 30 and an assembling man-hour for assembling the substrate 33 to the housing 30. Moreover, bending and impact applied to the housing 30 can be made difficult to be transmitted to the substrate 33. In particular, the substrate 33 is not only movable back and forth and left and right with respect to the housing 30 but also movable in the thickness direction, so that the amount of deformation of the substrate 33 compared to the amount of deformation of the housing 30 when the housing 30 is bent. The amount of deformation can be reduced, and damage to the electronic component 34 attached to the substrate 33 and damage to the soldered portion can be prevented.
[0036]
When the batteries 41, 41 are mounted in the support holes 39a, 39a of the holder main body 39 of the battery holder 38 upside down, the step portions 41c, 41c of the batteries 41, 41 and the battery support surfaces 39b, 39b of the holder main body 39 are aligned. First, the negative electrodes 41b and 41b of the batteries 41 and 41 protrude in the thickness direction from the holder main body 39, making it difficult to insert the battery holder 38 into the housing 30, so that the batteries 41 and 41 are mounted upside down. It becomes easier to notice that.
[0037]
If the battery holder 38 is forcibly inserted into the housing 30 without noticing that the batteries 41, 41 are mounted upside down, as shown in FIG. It can be coupled to the housing 30 once. However, the positive electrodes 41 a and 41 a on one side of the batteries 41 and 41 are in contact with the contacts 37 a and 37 a of the negative terminals 37 and 37 of the substrate 33, and the positive electrodes 41 a and 41 a on the outer periphery of the batteries 41 and 41 are connected to the substrate 33. In order to contact the contacts 36a and 36a of the plus terminals 36 and 36, that is, in order for both the plus terminals 36 and 36 and the minus terminals 37 and 37 of the substrate 33 to contact the plus electrodes 41a and 41a of the batteries 41 and 41, It is possible to prevent the reverse current from flowing through the electronic circuit and causing damage.
[0038]
Even if the batteries 41 and 41 are correctly mounted on the battery holder 38, if the battery holder 38 is mounted on the housing 30 with the front and back reversed, power cannot be supplied to the electronic circuit. As is apparent from FIG. 8, if there is no error in the front and back of the battery holder 38, the shorter first projection 39e of the holder body 39 does not interfere with the stopper portion 31h of the lower housing 31. 30. On the other hand, as is apparent from FIG. 11, when the battery holder 38 is inserted into the housing 30 upside down, the longer second protrusion 39 f of the holder body 39 interferes with the stopper portion 31 h of the lower housing 31. As a result (see point p in FIG. 11), the battery holder 38 cannot be completely inserted into the housing 30, and thus the battery holder 38 can be reliably prevented from being assembled.
[0039]
In order to remove the battery holder 38 from the housing 30, the pair of arms 39d and 39d of the holder main body 39 are pushed inward with two fingers to remove the latching claws 39c and 39c from the latching portions 31g and 31g. Thereafter, the battery holder 38 may be pulled out of the housing 30 while holding the arm portions 39d and 39d.
[0040]
Next, a function for determining whether or not the batteries 41 and 41 of the portable transmitter / receiver 11 are new when the batteries 41 and 41 are replaced will be described.
[0041]
As shown in FIG. 13, a power supply circuit 52, a reset circuit 53, a reference voltage generation circuit 53, and the like are provided between a comparator 51 provided in the control unit 20 of the portable transmitter / receiver 11 and the batteries 41 and 41. Is connected, and the comparator 51 controls the lighting of the LED 35 based on the voltage signals of the batteries 41 and 41.
[0042]
14 is coupled to the housing 30 in step S1 of the flowchart of FIG. 14, the reset operation is started by a signal from the reset circuit 53. In step S2, the process waits for a predetermined time to elapse, and after the voltage fluctuation due to the surge current at the moment when the batteries 41 and 41 are connected to the electronic circuit is settled, a dummy load (for example, an RF receiving circuit) is set in step S3. Turn it on. The reason why the dummy load is applied is that even when the old batteries 41, 41 that have been consumed are in a state where the load is not applied, the same voltage as that of the new batteries 41, 41 may be exhibited. When the voltage of the batteries 41 and 41 is stabilized after a certain time has passed in step S4, the voltage is read in step S5, and the dummy load is turned off in step S6.
[0043]
In subsequent step S7, the voltage read in step S5 is higher than the operable voltage of the portable transmitter / receiver 11, and in step S8, the voltage read in step S5 is the reference voltage (reference voltage) of the new batteries 41 and 41. when the voltage generating circuit 53 higher than the voltage) generated, it is determined that the battery 41 is new, to perform normal display to be lighted for a predetermined time an LED in a step S9. On the other hand, when the voltage of the battery 41 is lower than the reference voltage at the step S8, and determines that the battery cell 41 is not new, executes a warning display to flash the LED for a predetermined time in step S10 To do. If the voltage of the batteries 41 and 41 is lower than the operable voltage in the step S7, the display is not executed with the LED turned off in the step S11.
[0044]
If the reset is not performed in step S1 or after the voltages of the batteries 41 and 41 are determined in steps S9 to S11, the normal operation of the portable transmitter / receiver 11 is performed in step S12. The
[0045]
As described above, when the battery 41, 41 of the portable transmitter / receiver 11 is replaced, if the LED 35 is turned on, it can be confirmed that the battery 41, 41 is new. Further, if the LED 35 blinks when the batteries 41 and 41 are replaced, it can be confirmed that the batteries 41 and 41 are old, so that a new battery 41 and 41 can be purchased for convenience. Will improve. Further, if the LED 35 is turned off when the batteries 41 and 41 are replaced, it can be confirmed that the portable transmitter / receiver 11 cannot be operated with the batteries 41 and 41, so that the batteries 41 and 41 can be quickly replaced with new ones. Can be encouraged.
[0046]
Further, when the remote locking / unlocking device for the vehicle stops operating, the battery 41, 41 of the portable transmission / reception device 11 is once removed and then reset, and if the LED 35 is turned off at that time, the battery 41, It can be determined that the vehicle remote locking / unlocking device has become inoperable due to the consumption of 41, and if the LED 35 is turned on or flashing, the vehicle remote locking / unlocking device other than the portable sending / receiving device 11 is activated. Can be determined to be abnormal.
[0047]
Furthermore, since the battery 41, 41 of the portable transmitter / receiver 11 is once removed and then reset, the LED 35 indicating the state of the battery 41, 41 is activated. Therefore, it is possible to avoid the portable sending / receiving device 11 from becoming thick.
[0048]
Although the embodiments of the present invention have been described above, various design changes can be made without departing from the scope of the present invention.
[0049]
For example, the use of the portable device of the present invention is not limited to the vehicle remote locking / unlocking device for locking and unlocking the doors 21L and 21R of the vehicle V.
[0050]
Further, the notification means is not limited to the LED 35 of the embodiment, and may be light emission means such as a lamp or sound generation means such as a buzzer.
[0051]
【The invention's effect】
As described above, according to the invention described in claim 1, when the battery of the portable device is replaced, a load for checking the voltage of the new battery is applied to the new battery after the replacement , If the electronic circuit can be operated with the voltage applied from the new battery in the state where the load is applied , the notification means is operated for a predetermined time. It is prevented. In addition, when the system does not operate despite the fact that the notification means is activated and the electronic circuit is operable when the battery is replaced, it can be determined that there is an abnormality in the system other than the portable device. Furthermore, since a special switch or button for starting the battery check is unnecessary, it is possible to prevent the portable device housing from becoming thicker.
[0052]
Further, according to the invention described in claim 2, since the operation mode of the notification unit is changed based on the result of comparing the voltage of the new battery after replacement with a preset reference voltage, the operation mode of the notification unit is changed. Based on this, the degree of battery consumption can be recognized, and when the battery is exhausted, a new battery can be prepared in advance, thereby improving convenience.
[Brief description of the drawings]
1 is a diagram showing the overall configuration of a vehicle remote locking / unlocking device. FIG. 2 is a block diagram of a vehicle remote locking / unlocking device. FIG. 3 is an overall plan view of a portable transmitter / receiver. Fig. 5 is an exploded perspective view of the portable transmitter / receiver. Fig. 5 is a diagram showing a state where the upper housing of the portable transmitter / receiver is removed. Fig. 6 is an enlarged sectional view taken along line 6-6 in Fig. 3. Fig. 7 is a plan view of the battery holder. FIG. 8 is an enlarged view of the main part of FIG. 3 (with the upper housing removed).
9 is an enlarged cross-sectional view taken along line 9-9 in FIG. 8. FIG. 10 is an enlarged cross-sectional view taken along line 10-10 in FIG. 8. FIG. 11 is an explanatory diagram corresponding to FIG. FIG. 13 is a block diagram of a battery voltage determination circuit. FIG. 14 is a flowchart of a battery voltage determination routine.
16 LF antenna (antenna)
17 LF antenna (antenna)
18 LF antenna (antenna)
19 RF antenna (antenna)
30 Housing 35 LED (notification means)
41 battery

Claims (2)

アンテナ(16〜18,19)が接続された電子回路をハウジング(30)の内部に収納し、電子回路に動作電源を供給する電池(41)をハウジング(30)に対して着脱自在とした携帯機において、
電池(41)を交換したときに、その交換後の新たな電池(41)に、該新たな電池(41)の電圧チェックのための負荷を作用させ、その負荷が作用した状態の該新たな電池(41)から印加される電圧で電子回路が作動可能であれば、報知手段(35)を所定時間だけ作動させることを特徴とする携帯機。
An electronic circuit to which the antennas (16 to 18, 19) are connected is housed in the housing (30), and a battery (41) that supplies operating power to the electronic circuit is detachable from the housing (30). In the machine
When the battery (41) is replaced, a load for checking the voltage of the new battery (41) is applied to the new battery (41) after the replacement , and the new battery in the state in which the load is applied is applied. If the electronic circuit is operable with the voltage applied from the battery (41) , the notifying means (35) is operated for a predetermined time.
交換後の新たな電池(41)の前記電圧を予め設定した基準電圧と比較し、比較結果に基づいて報知手段(35)の作動態様を異ならせることを特徴とする、請求項1に記載の携帯機。  The voltage of the new battery (41) after replacement is compared with a preset reference voltage, and the operation mode of the notification means (35) is made different based on the comparison result. Portable machine.
JP2002294526A 2002-10-08 2002-10-08 Portable machine Expired - Fee Related JP3923404B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002294526A JP3923404B2 (en) 2002-10-08 2002-10-08 Portable machine

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Application Number Priority Date Filing Date Title
JP2002294526A JP3923404B2 (en) 2002-10-08 2002-10-08 Portable machine

Related Child Applications (1)

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JP2006287962A Division JP4287455B2 (en) 2006-10-23 2006-10-23 Portable machine

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JP3923404B2 true JP3923404B2 (en) 2007-05-30

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JP2011132770A (en) * 2009-12-25 2011-07-07 Tokai Rika Co Ltd Electronic key

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