JP3988529B2

JP3988529B2 - Security light

Info

Publication number: JP3988529B2
Application number: JP2002145368A
Authority: JP
Inventors: 典明岩尾
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 2002-05-20
Filing date: 2002-05-20
Publication date: 2007-10-10
Anticipated expiration: 2022-05-20
Also published as: JP2003338211A

Description

【０００１】
【発明の属する技術分野】
本発明は、保安灯に関するものである。
【０００２】
【従来の技術】
従来より、周囲の明るさを検知する明るさセンサと、検知エリア内の人の存否を検知する熱線センサとを備え、前記明るさセンサが検知した明るさが所定の明るさ以下の時に前記熱線センサが人を検知すると光源を点灯させ、また、商用交流電源の停電を検知すると蓄電池によって光源を点灯させる保安灯があった。
【０００３】
【発明が解決しようとする課題】
しかしながら、従来の保安灯は、明るさセンサの受光部と光源の位置が近いために、明るさセンサが光源に反応して誤動作する恐れがあった。
【０００４】
本発明は上記問題点に鑑みて為されたものであって、その目的とするところは、明るさセンサの誤動作を低減できる保安灯を提供することにある。
【０００５】
【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の発明は、器具本体と、器具本体上部に設置され受光部を器具本体の表面に臨ませて周囲の明るさを検知する明るさセンサと、器具本体表面の下部に設置され器具本体の周囲を照らす光源と、検知エリア内の人の存否を検知する熱線センサと、前記明るさセンサ及び熱線センサの検知信号に基づいて前記光源を点灯させる点灯制御回路と、商用交流電源を充電源として充電される蓄電池と、前記明るさセンサと前記光源との間の前記器具本体内に設置され前記蓄電池を収納する蓄電池収納部と、商用交流電源の停電を検知すると前記蓄電池によって前記光源を点灯させる停電検知回路とを備え、前記器具本体に枢着され、前記器具本体の表面に開口した前記蓄電池の取り出し部を開閉自在に覆う蓄電池カバー部を設け、前記蓄電池カバー部の内部に、前記蓄電池カバー部の開閉操作により入／切される前記蓄電池の遮断スイッチを設けたものとした。
【０００６】
請求項２の発明は、請求項１記載の発明において、前記蓄電池収納部を、商用交流電源への接続部から離れた場所に設けたものとした。
【０００７】
請求項３の発明は、請求項１記載の発明において、前記蓄電池収容部は、蓄電池が嵌入され、蓄電池を仮保持する仮保持部を有するものとした。
【０００８】
請求項４の発明は、請求項３記載の発明において、前記器具本体は、ボディと該ボディに被着するカバーとで構成され、前記蓄電池の仮保持部を前記ボディ上に設け、前記仮保持部に収納された蓄電池を、前記ボディと前記カバーとで保持するものとした。
【００１０】
請求項５の発明は、請求項１記載の発明において、前記蓄電池カバー部を前記器具本体に枢着するヒンジを前記器具本体と一体で設けたものとした。
【００１１】
請求項６の発明は、請求項５記載の発明において、前記蓄電池の取り出し部を前記ヒンジから離れた場所に設けた物とした。
【００１２】
請求項７の発明は、請求項１記載の発明において、動作を停止して蓄電池の充電を行う状態と、前記点灯制御回路と前記停電検知回路の指示に従い動作する状態と、前記蓄電池を点検する状態とを選択する切替スイッチを備え、前記切替スイッチを前記器具本体の上部中央に設けたものとした。
【００１３】
【発明の実施の形態】
以下、本発明を一実施形態によって説明する。
【００１４】
図１〜３に示すように、本実施形態の保安灯の器具本体１は、前面が開口した略箱状の合成樹脂製のボディ１Ａと、ボディ１Ａの開口部分に被着されるボディカバー１Ｂとで構成される。ボディカバー１Ｂの背向する一対の側面には各々鍔部４０が突設されており、ボディ１Ａとボディーカバー１Ｂは、ボディカバー１Ｂの鍔部４０に左右２ヶ所ずつ設けられた結合用爪４２ａ〜４２ｄを、ボディ１Ａに設けた結合孔１２ａ〜１２ｄに係入することにより結合固定されて器具本体１を構成する。
【００１５】
また、鍔部４０には、合成樹脂製の２連型の取付枠８に設けられた係止孔８ａに着脱自在に係入する係止爪４１が夫々２対ずつ設けられており、一般の埋込型の配線器具と同様に合成樹脂製の取付枠８を用いて壁面に埋設したスイッチボックスや埋込穴に取りつけることができるようになっている。尚、ボディカバー１Ｂの両側面には、金属性の取付枠に取り付ける場合の取付部４３が各１対ずつ設けてある。
【００１６】
ボディ１Ａの内底面には、ＮｉＣｄ（ニッカド）電池等の蓄電池３を器具本体１に収納した際に蓄電池３が嵌入され蓄電池３を仮保持する蓄電池の仮保持部１１と、商用交流電源と接続するための電線が挿入される周知の速結端子（図示せず）を内部に備えたプリント基板ブロック２１を収納するブロック収納部１３と、プリント基板ブロック２１に取り付けられたプリント基板２を収納するプリント基板収納部１８とが夫々設けられている。
【００１７】
蓄電池の仮保持部１１は、隔壁１１ａによって、蓄電池３の形状に合わせて、蓄電池３の側面を包みこむように形成されており、蓄電池３の取り付けや交換を行う際に、嵌入された蓄電池３を仮保持し、蓄電池３の脱落を防止して容易に作業が行えるようになっている。仮保持部１１は、後述するボディカバー１Ｂの蓄電池挿通孔４５ａと合わせて、蓄電池３を保持する蓄電池収納部を構成する。
【００１８】
また、蓄電池の仮保持部１１は、後述するように器具本体１の上部に設置される明るさセンサ２８と器具本体の下部に設置される光源としてのＬＥＤ２２との間に配置されるように、器具本体１を壁面に取り付けた時の上下方向の中央より、やや下寄りの位置に配置されている。
【００１９】
さらに、蓄電池の仮保持部１１は、ボディ１Ａの側壁１７側に設けられたブロック収納部１３からできるだけ離れた位置の、側壁１６側に設けられており、商用交流電源への接続部となるプリント基板ブロック２１を収納するブロック収納部１３と蓄電池の収納部となる仮保持部１１とを離れた場所に設置することで、絶縁距離を十分に確保している。
【００２０】
ブロック収納部１３は、底部に露出孔１３ａを設けてあり、露出孔１３ａからプリント基板ブロック２１の凸部２１ｂを器具本体１の裏面に露出させるようにして、プリント基板ブロック２１を収納する。プリント基板ブロック２１の凸部２１ｂの表面には速結端子の電線挿入孔２１ａが設けられており、電線が挿入可能となっている。
【００２１】
ブロック収納部１３に、プリント基板ブロック２１が収納されると、同時に、プリント基板ブロック２１に取りつけられたプリント基板２が、プリント基板収納部１８へ配置される。
【００２２】
プリント基板２には、プリント基板２をボディ１Ａに配置した際に、蓄電池の仮保持部１１を逃がすための切り欠き２４が設けられており、中央片２ｃと、両対向片２ａ，２ｂとからなる略コ字状に形成され、表面に本保安灯の動作を切り替える切替スイッチＳＷ１と、焦電素子を具備して人体から放射される熱線により検知エリア内の人の存否を検知する熱線センサ２７と、ＣｄＳのような光電変換素子を具備して周囲の明るさを検知する明るさセンサ２８と、蓄電池３を商用交流電源から遮断する遮断スイッチＳＷ２と、蓄電池３のコネクタ３１とプリント基板２とを接続するコネクタ受部２５と、複数（本実施形態では６個）のＬＥＤ２２からなる光源等が実装されている。
【００２３】
切替スイッチＳＷ１は、本保安灯の動作を、“停止状態（充電状態）”と、“通常状態”と、“点検状態”とに切り替えるもので、器具本体１を壁面に取りつけた時に器具本体１の上部中央の位置にくるように、プリント基板２の一方対向片２ａの端部に設けられている。
【００２４】
熱線センサ２７と明るさセンサ２８は、器具本体１を壁面に取り付けた際に器具本体の上部となるプリント基板２の一方対向片２ａ上に配置され、ＬＥＤ２２は、器具本体１を壁面に取り付けた際に器具本体の下部となる他方対向片２ｂ上にＬＥＤ支持台２３を介して配置され、プリント基板２がボディ１Ａに配置された際に、明るさセンサ２８とＬＥＤ２２とが蓄電池の仮保持部１１を隔てて配置されるようになっており、明るさセンサ２８とＬＥＤ２２とを離れた場所に設置することで、明るさセンサ２８の誤動作を低減している。また、光源として、長寿命であるＬＥＤ２２を用いることで、光源の交換がほとんど不要となり、メンテナンスが容易となる。
【００２５】
遮断スイッチＳＷ２は、蓄電池３を交換する際などに、蓄電池３を商用交流電源から遮断して感電などを防止するためのもので、ボディカバー１Ｂに被着される蓄電池カバー６の開閉操作によって遮断スイッチＳＷ２が入／切されるように、遮断スイッチＳＷ２の操作部２９がボディカバー１Ｂから突出するように高さを調整して、切り欠き２４の横のプリント基板２の中央片２ｃ上に設置される。
【００２６】
蓄電池のコネクタ受部２５は、遮断スイッチＳＷ２と共に蓄電池カバー６によって覆われるように、切り欠き２４のすぐ横に設けられている。
【００２７】
ボディカバー１Ｂには、切替スイッチＳＷ１の操作部７がスライド自由に露出される矩形のスイッチ孔４８と、人体を検知する熱線センサ２７と明るさセンサ２８の受光部を器具本体１の前面に臨ませるセンサ窓４４ａを有する凹部４４と、蓄電池カバー６によって覆われる蓄電池交換部４５と、ＬＥＤ２２を前面に臨ませて透光性を有する合成樹脂によって形成された光源カバー５が嵌めこまれて装着される開口窓４６とが設けてある。
【００２８】
スイッチ孔４８は、器具本体１を壁面に取りつけた際に器具本体１の上部中央となる位置に設けられており、切替スイッチＳＷ１を操作する操作部７を器具本体１のどの方向からでも容易に操作できるようになっている。
【００２９】
センサ窓４４ａは、外部の光（熱線を含む）を熱線センサ２７や明るさセンサ２８の受光部に集光するためのフレネルレンズからなるレンズ４１によって閉塞される。レンズ４１は、熱線センサ２７や明るさセンサ２８を覆うようにしてプリント基板２上に載置されるレンズ支持枠４によって支持されている。
【００３０】
蓄電池交換部４５は、器具本体１に開閉自在に枢着される蓄電池カバー６によって覆われ、ボディ１Ａに設けられた蓄電池の仮保持部１１へ蓄電池３を収納する為の蓄電池挿通孔４５ａと、プリント基板２上に設けられた蓄電池３のコネクタ受部２５を器具本体１の表面に露出させるための露出孔４５ｄと、遮断スイッチＳＷ２を内部に収納し遮断スイッチＳＷ２の操作部２９のみを外部に突出させる開口孔４５ｅを備えた中空の遮断スイッチ収納部４５ｃとを備えている。
【００３１】
蓄電池挿通孔４５ａは、ボディ１Ａの蓄電池の仮保持部１１と共に蓄電池３を保持する蓄電池収納部を形成し、蓄電池挿通孔４５ａの内周壁の一側面に取り付けられた金属製のばね板４５ｂのばね力で、蓄電池３を蓄電池収納部の対向する内周壁に押さえつけ、脱落を防ぐようになっている。また、蓄電池挿通孔４５ａは、蓄電池３を交換する際などに蓄電池３を器具本体１から取り出す、取り出し部となる。
【００３２】
遮断スイッチ収納部４５ｃの開口孔４５ｅから突出した遮断スイッチＳＷ２の操作部２９は、蓄電池カバー６を閉じると、蓄電池カバー６によって押圧され、蓄電池３がプリント基板２と電気的に繋がった状態となり、蓄電池カバー６を開けると、操作部２９が開放され、蓄電池３とプリント基板２は電気的に遮断された状態となる。蓄電池カバー６の開閉操作により、蓄電池３の遮断が自動で行われるため、蓄電池の交換を行う際等に、蓄電池カバー６を開けると、蓄電池３が自動で遮断され、交換作業を安全に行うことができる。
【００３３】
また、遮断スイッチＳＷ２を蓄電池カバー６内の空いているスペースに設けたことで、遮断スイッチＳＷ２の設置のために特別な場所を必要とせず、装置を小型化できる。
【００３４】
蓄電池カバー６は、一側面の両端部から突出する一対の突出部６０に、対向するように軸部６０ａが夫々設けられており、ボディカバー１Ｂと一体で形成されたヒンジ４７の軸受け孔４７ａに、軸部６０ａを枢着させて、開閉自在に器具本体１に取り付けられる。
【００３５】
蓄電池カバー６を、ヒンジ４７で開閉自在に器具本体１に取り付けることで、蓄電池３の取り付けや交換の際に、蓄電池カバー６を取り外す必要がなくなり、外した部品を紛失する恐れもなくなる。また、ヒンジ４７をボディカバー１Ｂと一体で形成することで、ヒンジ４７の補強を図っている。また、ヒンジ４７を、蓄電池３の取り出し部となる蓄電池挿通孔４５ａから遠い側のボディカバー１Ｂの側面に設けて、蓄電池の交換の際にヒンジ４７が邪魔にならないようにしている。
【００３６】
次に、上記のように構成される保安灯の動作を図４を用いて説明する。
【００３７】
この保安灯は、図２（ａ）に示すように、切替スイッチＳＷ１により保安灯の動作を、動作を停止して蓄電池の充電を行う“切（充電）”状態と、後述する点灯制御回路と停電検知回路の指示に従い動作する“通常”状態と、蓄電池３を点検する“電池点検”状態とに切り替えられる。
【００３８】
まず、“切（充電）”状態を説明する。
【００３９】
切替スイッチＳＷ１で“切（充電）”を選択すると、図４中の切替スイッチＳＷ１が“ａ”の位置へと繋がる。この時、オペアンプやフリップフロップなどから構成される停電検知回路Ａは、ＯＮ／ＯＦＦ制御回路ＣをＯＦＦ制御する信号を出力し、それを受けたＯＮ／ＯＦＦ制御回路ＣはＯＦＦ制御状態となり、蓄電池３は、ＬＥＤ１〜６と遮断された状態となる。また、トランジスターＱ１が強制的にオンされるため、熱線センサ２７や明るさセンサ２８の出力を受けて点灯を制御する点灯制御回路Ｂの出力とは無関係に、トランジスタＱ２もオンされ、トランジスタＱ３はオフとなる。
【００４０】
よって、ダイオードブリッジＤＢやツェナーダイオードＺＤ１等によって直流定電圧に変換された商用交流電源ＡＣは、トランジスタＱ２やツェナーダイオードＺＤ２を通って蓄電池３へと流れ蓄電池３を充電する。この時、ＬＥＤ１〜６には電流が流れないため、ＬＥＤ１〜６は点灯しない。
【００４１】
次に、“通常”状態を説明する。
【００４２】
切替スイッチＳＷ１で“通常”状態を選択すると、図４中の切替スイッチＳＷ１が“ｂ”の位置へと繋がる。この時、停電検知回路Ａは、商用交流電源ＡＣからの出力を監視し、停電でなければ、ＯＮ／ＯＦＦ制御回路ＣをＯＦＦ制御する信号を出力し、それを受けたＯＮ／ＯＦＦ制御回路ＣはＯＦＦ制御状態となり、蓄電池３は、ＬＥＤ１〜６と遮断された状態となる。この時、トランジスタＱ１はオフのため、トランジスタＱ４は、点灯制御回路Ｂからの出力によって、ＯＮ／ＯＦＦが切り替えられる。
【００４３】
点灯制御回路Ｂは、明るさセンサ２８が検知した明るさが所定の明るさ以下の時に熱線センサ２７が人を検知すると、所定の時間トランジスタＱ４をオフし、それ以外の時は、トランジスタＱ４をオンしておく。
【００４４】
トランジスタＱ４がオフされると、それに伴いトランジスタＱ２がオフされ、トランジスタＱ３がオンされ、直流定電圧に変換された交流電源ＡＣは、トランジスタＱ３及びダイオードＤ３及び抵抗Ｒ３を通って、ＬＥＤ１〜６へと繋がり、ＬＥＤ１〜６が点灯する。
【００４５】
トランジスタＱ４がオンの時は、トランジスタＱ２がオンされ、トランジスタＱ３がオフされるので、ＬＥＤ１〜６は点灯せず、蓄電池３が充電される。
【００４６】
以上を整理すると、商用交流電源ＡＣが停電でない時は、明るさセンサ２８が検知した明るさが所定の明るさ以下で熱線センサ２７が人を検知すると、所定の時間ＬＥＤ１〜６が点灯し、それ以外の時は、蓄電池３が充電される。
【００４７】
一方、交流電源ＡＣが停電すると、停電検知回路Ａは、ＯＮ／ＯＦＦ制御回路ＣをＯＮ制御する信号を出力し、それを受けたＯＮ／ＯＦＦ制御回路ＣはＯＮ制御状態となり、蓄電池３は、ＬＥＤ１〜６と繋がれた状態となり、ＬＥＤ１〜６を強制的に点灯させる。
【００４８】
次に、“電池点検”状態を説明する。
【００４９】
切替スイッチＳＷ１で“電池点検”状態を選択すると、図４中の切替スイッチＳＷ１が“ｃ”の位置へと繋がる。この時、交流電源ＡＣは、停電検知回路Ａと遮断され、停電検知回路Ａは停電を検知した時と同じ状態となり、ＯＮ／ＯＦＦ制御回路ＣをＯＮ制御する信号を出力し、それを受けたＯＮ／ＯＦＦ制御回路ＣはＯＮ制御状態となり、蓄電池３は、ＬＥＤ１〜６と繋がれた状態となり、ＬＥＤ１〜６を強制的に点灯させる。この点検状態を選択することで、仮想的に停電状態を作り出し、この保安灯が停電時に正常に動作するかを確認することができる。
【００５０】
【発明の効果】
請求項１の発明は、器具本体と、器具本体上部に設置され受光部を器具本体の表面に臨ませて周囲の明るさを検知する明るさセンサと、器具本体表面の下部に設置され器具本体の周囲を照らす光源と、検知エリア内の人の存否を検知する熱線センサと、前記明るさセンサ及び熱線センサの検知信号に基づいて前記光源を点灯させる点灯制御回路と、商用交流電源を充電源として充電される蓄電池と、前記明るさセンサと前記光源との間の前記器具本体内に設置され前記蓄電池を収納する蓄電池収納部と、商用交流電源の停電を検知すると前記蓄電池によって前記光源を点灯させる停電検知回路とを備え、前記器具本体に枢着され、前記器具本体の表面に開口した前記蓄電池の取り出し部を開閉自在に覆う蓄電池カバー部を設け、前記蓄電池カバー部の内部に、前記蓄電池カバー部の開閉操作により入／切される前記蓄電池の遮断スイッチを設けたので、前記明るさセンサと前記光源との間に蓄電池収納部を設けることで、前記明るさセンサと前記光源とが遠ざけられ、前記明るさセンサの誤動作を低減することができるという効果がある。また、前記遮断スイッチを前記蓄電池カバー部の内部に設置することで、遮断スイッチの設置のための特別な場所を必要とせず前記器具本体を小型にでき、さらに、蓄電池の遮断が前記蓄電池カバー部の開閉操作により自動で行われるので、前記蓄電池カバー部を開けた際の対地電圧の対策ができるという効果がある。
【００５１】
請求項２の発明は、請求項１記載の発明において、前記蓄電池収納部を、商用交流電源への接続部から離れた場所に設けたので、前記蓄電池と商用交流電源への接続部との絶縁距離が十分に確保できるという効果がある。
【００５２】
請求項３の発明は、請求項１記載の発明において、前記蓄電池収容部は、蓄電池が嵌入され、蓄電池を仮保持する仮保持部を有するので、蓄電池の交換の際に、蓄電池の脱落が防止され、蓄電池の交換が容易に行えるという効果がある。
【００５３】
請求項４の発明は、請求項３記載の発明において、前記器具本体は、ボディと該ボディに被着するカバーとで構成され、前記蓄電池の仮保持部を前記ボディ上に設け、前記仮保持部に収納された蓄電池を、前記ボディと前記カバーとで保持するので、蓄電池の保持性が向上できるという効果がある。
【００５５】
請求項５の発明は、請求項１記載の発明において前記蓄電池カバー部を前記器具本体に枢着するヒンジを前記器具本体と一体で設けたので、前記ヒンジ部の補強ができるという効果がある。
【００５６】
請求項６の発明は、請求項５記載の発明において、前記蓄電池の取り出し部を前記ヒンジから離れた場所に設けたので、蓄電池の交換の際にヒンジが邪魔にならず、交換を容易に行えるという効果がある。
【００５７】
請求項７の発明は、請求項１記載の発明において、動作を停止して蓄電池の充電を行う状態と、前記点灯制御回路と前記停電検知回路の指示に従い動作する状態と、前記蓄電池を点検する状態とを選択する切替スイッチを備え、前記切替スイッチを前記器具本体の上部中央に設けたので、前記器具本体のどの方向からでもスイッチの切り替えが容易に行えるという効果がある。
【図面の簡単な説明】
【図１】本実施形態の保安灯の分解斜視図である。
【図２】（ａ）同上の上面図である。
（ｂ）同上の左側面図である。
（ｃ）同上の正面図である。
（ｄ）同上の右側面図である。
（ｅ）同上の下面図である。
（ｆ）同上の左断面図である。
【図３】（ａ）同上の蓄電池カバーを外した時の正面図である。
（ｂ）同上の裏面図である。
【図４】同上の回路図である。
【符号の説明】
１器具本体
１Ａボディ
１Ｂボディカバー
２プリント基板
３蓄電池
５光源カバー
６蓄電池カバー
１１仮保持部
２２ＬＥＤ
２７熱線センサ
２８明るさセンサ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a security light.
[0002]
[Prior art]
Conventionally, it has a brightness sensor for detecting ambient brightness and a heat ray sensor for detecting the presence or absence of a person in the detection area, and the heat ray is detected when the brightness detected by the brightness sensor is equal to or lower than a predetermined brightness. When the sensor detects a person, there is a safety light that turns on the light source, and when a power failure of the commercial AC power supply is detected, the storage light turns on the light source.
[0003]
[Problems to be solved by the invention]
However, the conventional security light has a possibility that the brightness sensor reacts to the light source and malfunctions because the light receiving portion of the brightness sensor and the position of the light source are close to each other.
[0004]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a security light that can reduce malfunction of a brightness sensor.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the invention of claim 1 includes an instrument main body, a brightness sensor that is installed on the upper part of the instrument main body and detects the ambient brightness with the light receiving portion facing the surface of the instrument main body, and the instrument main body. A light source installed at the lower part of the surface to illuminate the periphery of the instrument body, a heat ray sensor for detecting the presence or absence of a person in the detection area, and a lighting control circuit for lighting the light source based on detection signals of the brightness sensor and the heat ray sensor A storage battery that is charged using a commercial AC power source as a charging source, a storage battery storage unit that is installed in the instrument body between the brightness sensor and the light source and stores the storage battery, and detects a power failure of the commercial AC power source then a power failure detection circuit for lighting said light source by said battery, said pivotally mounted to the instrument body, battery mosquito covers openably the extraction portion of the battery which is open to the surface of the instrument body The over portion is provided, in the interior of the battery cover, and as having a cut-off switch of the battery to be on / off by opening and closing operation of the battery cover.
[0006]
According to a second aspect of the present invention, in the first aspect of the present invention, the storage battery storage section is provided at a location away from a connection section to a commercial AC power source.
[0007]
According to a third aspect of the present invention, in the first aspect of the invention, the storage battery housing portion includes a temporary holding portion into which the storage battery is inserted and temporarily holds the storage battery.
[0008]
According to a fourth aspect of the present invention, in the third aspect of the present invention, the instrument body includes a body and a cover attached to the body, and the temporary holding portion of the storage battery is provided on the body, and the temporary holding is performed. The storage battery housed in the part is held by the body and the cover.
[0010]
According to a fifth aspect of the present invention, in the first aspect of the present invention, a hinge for pivotally attaching the storage battery cover portion to the instrument main body is provided integrally with the instrument main body.
[0011]
The invention according to claim 6 is the invention according to claim 5 , wherein the storage battery take-out portion is provided at a location away from the hinge.
[0012]
According to a seventh aspect of the present invention, in the first aspect of the present invention, the state in which the operation is stopped and the storage battery is charged, the state in which the operation is performed according to the instructions of the lighting control circuit and the power failure detection circuit, and the storage battery are inspected. A changeover switch for selecting a state is provided, and the changeover switch is provided in the upper center of the instrument body.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described with reference to an embodiment.
[0014]
As shown in FIGS. 1 to 3, the security lamp main body 1 of the present embodiment includes a substantially box-shaped synthetic resin body 1 </ b> A having an open front surface, and a body cover 1 </ b> B attached to an opening portion of the body 1 </ b> A. Consists of. A pair of side surfaces facing the back of the body cover 1B are provided with a flange 40, and the body 1A and the body cover 1B are connected to the flange 40 of the body cover 1B at two right and left coupling claws 42a to 42d. Are coupled and fixed by engaging with coupling holes 12a to 12d provided in the body 1A to constitute the instrument body 1.
[0015]
In addition, the hook portion 40 is provided with two pairs of locking claws 41 that are detachably inserted into the locking holes 8a provided in the synthetic resin duplex mounting frame 8, respectively. Similar to the embedded wiring device, the mounting frame 8 made of synthetic resin can be used to attach the switch box or the embedded hole embedded in the wall surface. A pair of mounting portions 43 for mounting on a metallic mounting frame is provided on each side surface of the body cover 1B.
[0016]
On the inner bottom surface of the body 1A, when the storage battery 3 such as a NiCd (NiCd) battery is stored in the instrument body 1, the storage battery 3 is inserted and temporarily connected to the storage battery 3 and the commercial AC power source. A block storage unit 13 for storing a printed circuit board block 21 provided therein with a well-known quick connection terminal (not shown) into which an electric wire for insertion is inserted, and a printed circuit board 2 attached to the printed circuit board block 21 are stored. A printed circuit board storage unit 18 is provided.
[0017]
The temporary storage unit 11 of the storage battery is formed so as to wrap the side surface of the storage battery 3 in accordance with the shape of the storage battery 3 by the partition wall 11a, and the inserted storage battery 3 is attached when the storage battery 3 is attached or replaced. Temporary holding is performed so that the storage battery 3 is prevented from falling off and can be easily operated. The temporary holding part 11 constitutes a storage battery storage part for holding the storage battery 3 together with a storage battery insertion hole 45a of the body cover 1B described later.
[0018]
Further, the temporary storage unit 11 of the storage battery is disposed between a brightness sensor 28 installed at the upper part of the instrument body 1 and an LED 22 as a light source installed at the lower part of the instrument body, as will be described later. It is arranged at a position slightly lower than the center in the vertical direction when the instrument body 1 is attached to the wall surface.
[0019]
Furthermore, the temporary storage unit 11 for the storage battery is provided on the side wall 16 side, as far as possible from the block storage unit 13 provided on the side wall 17 side of the body 1A, and is a print serving as a connection unit to a commercial AC power source. By installing the block storage unit 13 for storing the substrate block 21 and the temporary holding unit 11 serving as a storage unit for the storage battery at a location separated from each other, a sufficient insulation distance is secured.
[0020]
The block housing portion 13 is provided with an exposure hole 13a at the bottom, and houses the printed circuit board block 21 such that the convex portion 21b of the printed circuit board block 21 is exposed from the back surface of the instrument body 1 through the exposed hole 13a. A wire insertion hole 21a for a quick connection terminal is provided on the surface of the convex portion 21b of the printed circuit board block 21, so that an electric wire can be inserted.
[0021]
When the printed circuit board block 21 is stored in the block storage unit 13, the printed circuit board 2 attached to the printed circuit board block 21 is simultaneously placed in the printed circuit board storage unit 18.
[0022]
The printed circuit board 2 is provided with a notch 24 for escaping the temporary holding part 11 of the storage battery when the printed circuit board 2 is arranged on the body 1A. From the central piece 2c and the opposing pieces 2a and 2b, A switch SW1 that switches the operation of the safety light on the surface, and a heat ray sensor 27 that includes a pyroelectric element and detects the presence or absence of a person in the detection area by heat rays emitted from the human body. A brightness sensor 28 that includes a photoelectric conversion element such as CdS to detect ambient brightness, a cut-off switch SW2 that shuts off the storage battery 3 from a commercial AC power source, a connector 31 of the storage battery 3 and the printed circuit board 2 And a light source or the like including a plurality of (six in this embodiment) LEDs 22 is mounted.
[0023]
The change-over switch SW1 switches the operation of the safety light to “stop state (charged state)”, “normal state”, and “inspection state”. When the device body 1 is attached to the wall surface, the body 1 Is provided at the end of the one opposing piece 2a of the printed circuit board 2 so as to be located at the center of the upper part of the printed circuit board 2.
[0024]
The heat ray sensor 27 and the brightness sensor 28 are arranged on the one opposing piece 2a of the printed circuit board 2 that is an upper part of the instrument body when the instrument body 1 is attached to the wall surface, and the LED 22 is attached to the wall surface of the instrument body 1 When the printed circuit board 2 is disposed on the body 1A, the brightness sensor 28 and the LED 22 are temporarily mounted on the storage battery when the printed circuit board 2 is disposed on the body 1A. 11, and the brightness sensor 28 and the LED 22 are installed at a distance from each other, thereby reducing malfunction of the brightness sensor 28. Further, by using the long-life LED 22 as the light source, it is almost unnecessary to replace the light source, and maintenance is facilitated.
[0025]
The shut-off switch SW2 is for shutting off the storage battery 3 from the commercial AC power source to prevent an electric shock when the storage battery 3 is replaced. The shut-off switch SW2 is operated by opening and closing the storage battery cover 6 attached to the body cover 1B. The height is adjusted so that the operation part 29 of the cutoff switch SW2 protrudes from the body cover 1B so that the switch SW2 is turned on / off, and is installed on the central piece 2c of the printed circuit board 2 next to the notch 24. .
[0026]
The connector receiving part 25 of the storage battery is provided immediately next to the notch 24 so as to be covered by the storage battery cover 6 together with the cutoff switch SW2.
[0027]
The body cover 1B has a rectangular switch hole 48 through which the operation unit 7 of the changeover switch SW1 is slidably exposed, a heat ray sensor 27 for detecting a human body, and a light receiving unit for the brightness sensor 28 facing the front surface of the instrument body 1. A concave portion 44 having a sensor window 44a, a storage battery exchange portion 45 covered by the storage battery cover 6, and a light source cover 5 formed of a synthetic resin having translucency with the LED 22 facing the front surface are fitted and mounted. An opening window 46 is provided.
[0028]
The switch hole 48 is provided at a position that becomes the upper center of the instrument body 1 when the instrument body 1 is attached to the wall surface, and the operation unit 7 for operating the changeover switch SW1 can be easily operated from any direction of the instrument body 1. It can be operated.
[0029]
The sensor window 44a is closed by a lens 41 made of a Fresnel lens for condensing external light (including heat rays) on the light receiving portions of the heat ray sensor 27 and the brightness sensor 28. The lens 41 is supported by the lens support frame 4 placed on the printed circuit board 2 so as to cover the heat ray sensor 27 and the brightness sensor 28.
[0030]
The storage battery replacement part 45 is covered with a storage battery cover 6 pivotally attached to the instrument body 1 so as to be freely opened and closed, and a storage battery insertion hole 45a for storing the storage battery 3 in the temporary storage part 11 of the storage battery provided in the body 1A, An exposure hole 45d for exposing the connector receiving portion 25 of the storage battery 3 provided on the printed circuit board 2 to the surface of the instrument body 1 and the cutoff switch SW2 are housed inside, and only the operation portion 29 of the cutoff switch SW2 is externally provided. And a hollow shut-off switch housing portion 45c having an opening hole 45e to be projected.
[0031]
The storage battery insertion hole 45a forms a storage battery storage part that holds the storage battery 3 together with the temporary storage part 11 of the storage battery of the body 1A, and a spring of a metal spring plate 45b attached to one side surface of the inner peripheral wall of the storage battery insertion hole 45a. With force, the storage battery 3 is pressed against the opposing inner peripheral wall of the storage battery storage unit to prevent the storage battery 3 from falling off. Further, the storage battery insertion hole 45a serves as a take-out portion for taking out the storage battery 3 from the instrument body 1 when the storage battery 3 is replaced.
[0032]
When the storage battery cover 6 is closed, the operation part 29 of the cutoff switch SW2 protruding from the opening hole 45e of the cutoff switch storage part 45c is pressed by the storage battery cover 6, and the storage battery 3 is electrically connected to the printed circuit board 2. When the storage battery cover 6 is opened, the operation unit 29 is opened, and the storage battery 3 and the printed board 2 are electrically disconnected. Since the storage battery 3 is automatically shut off by the opening / closing operation of the storage battery cover 6, when the storage battery cover 6 is opened, for example, when the storage battery is replaced, the storage battery 3 is automatically shut off and the replacement work can be performed safely. Can do.
[0033]
Further, by providing the cutoff switch SW2 in an empty space in the storage battery cover 6, a special place is not required for installing the cutoff switch SW2, and the apparatus can be miniaturized.
[0034]
The storage battery cover 6 is provided with a shaft portion 60a so as to be opposed to a pair of projecting portions 60 projecting from both end portions of one side surface, and in a bearing hole 47a of a hinge 47 formed integrally with the body cover 1B, The shaft portion 60a is pivotally attached to the instrument body 1 so as to be freely opened and closed.
[0035]
By attaching the storage battery cover 6 to the instrument main body 1 so as to be freely opened and closed by the hinge 47, it is not necessary to remove the storage battery cover 6 when attaching or replacing the storage battery 3, and there is no possibility of losing the removed parts. Further, the hinge 47 is formed integrally with the body cover 1B, thereby reinforcing the hinge 47. Moreover, the hinge 47 is provided in the side surface of the body cover 1B far from the storage battery insertion hole 45a which becomes the take-out part of the storage battery 3, so that the hinge 47 does not get in the way when the storage battery is replaced.
[0036]
Next, the operation of the security light configured as described above will be described with reference to FIG.
[0037]
As shown in FIG. 2 (a), the safety light is operated by the changeover switch SW1, the operation of the safety light is stopped, the "off (charging)" state in which the operation is stopped and the storage battery is charged, and a lighting control circuit described later. It is switched between a “normal” state that operates according to an instruction from the power failure detection circuit and a “battery check” state that checks the storage battery 3.
[0038]
First, the “OFF (charging)” state will be described.
[0039]
When “OFF (charging)” is selected with the changeover switch SW1, the changeover switch SW1 in FIG. 4 is connected to the position “a”. At this time, the power failure detection circuit A composed of an operational amplifier, a flip-flop, and the like outputs a signal for controlling the ON / OFF control circuit C to OFF, and the ON / OFF control circuit C receiving the signal enters the OFF control state. 3 will be in the state interrupted | blocked with LED1-6. In addition, since the transistor Q1 is forcibly turned on, the transistor Q2 is also turned on regardless of the output of the lighting control circuit B that controls the lighting by receiving the outputs of the heat ray sensor 27 and the brightness sensor 28, and the transistor Q3 is turned on. Turn off.
[0040]
Therefore, the commercial AC power supply AC converted to the DC constant voltage by the diode bridge DB, the Zener diode ZD1, etc. flows to the storage battery 3 through the transistor Q2 and the Zener diode ZD2, and charges the storage battery 3. At this time, since no current flows through the LEDs 1 to 6, the LEDs 1 to 6 are not lit.
[0041]
Next, the “normal” state will be described.
[0042]
When the “normal” state is selected by the changeover switch SW1, the changeover switch SW1 in FIG. 4 is connected to the position “b”. At this time, the power failure detection circuit A monitors the output from the commercial AC power supply AC, and if it is not a power failure, outputs a signal for controlling the ON / OFF control circuit C to be turned off. Becomes an OFF control state, and the storage battery 3 is cut off from the LEDs 1 to 6. At this time, since the transistor Q1 is OFF, the transistor Q4 is switched ON / OFF by the output from the lighting control circuit B.
[0043]
The lighting control circuit B turns off the transistor Q4 for a predetermined time when the heat ray sensor 27 detects a person when the brightness detected by the brightness sensor 28 is equal to or lower than the predetermined brightness, and turns off the transistor Q4 at other times. Keep it on.
[0044]
When the transistor Q4 is turned off, the transistor Q2 is turned off accordingly, the transistor Q3 is turned on, and the AC power supply AC converted into the DC constant voltage passes through the transistor Q3, the diode D3, and the resistor R3, and then goes to the LEDs 1 to 6. LED1-6 will light up.
[0045]
When the transistor Q4 is on, the transistor Q2 is turned on and the transistor Q3 is turned off, so that the LEDs 1 to 6 are not lit and the storage battery 3 is charged.
[0046]
To summarize the above, when the commercial AC power supply AC is not a power failure, when the brightness detected by the brightness sensor 28 is equal to or lower than the predetermined brightness and the heat ray sensor 27 detects a person, the LEDs 1 to 6 are lit for a predetermined time, At other times, the storage battery 3 is charged.
[0047]
On the other hand, when the AC power supply AC fails, the power failure detection circuit A outputs a signal for ON control of the ON / OFF control circuit C, and the ON / OFF control circuit C receiving the signal is in the ON control state. It will be in the state connected with LED1-6, and LED1-6 will be lighted forcibly.
[0048]
Next, the “battery check” state will be described.
[0049]
When the “battery check” state is selected by the changeover switch SW1, the changeover switch SW1 in FIG. 4 is connected to the position “c”. At this time, the AC power supply AC is cut off from the power failure detection circuit A, and the power failure detection circuit A is in the same state as when the power failure is detected, and outputs a signal for ON control of the ON / OFF control circuit C. The ON / OFF control circuit C enters an ON control state, and the storage battery 3 enters a state connected to the LEDs 1 to 6 and forcibly turns on the LEDs 1 to 6. By selecting this inspection state, it is possible to virtually create a power failure state and check whether this safety light operates normally during a power failure.
[0050]
【The invention's effect】
The invention according to claim 1 is an instrument main body, a brightness sensor that is installed on the upper part of the instrument main body and detects a surrounding brightness with a light receiving part facing the surface of the instrument main body, and an instrument main body that is installed on the lower part of the instrument main body surface. A light source that illuminates the surroundings, a heat ray sensor that detects the presence or absence of a person in the detection area, a lighting control circuit that lights the light source based on detection signals of the brightness sensor and the heat ray sensor, and a commercial AC power source as a charging source A storage battery that is charged as a battery, a storage battery storage unit that is installed in the instrument body between the brightness sensor and the light source, and stores the storage battery; and a power failure detecting circuit for said pivotally mounted to the instrument body, a battery cover which covers openably the extraction portion of the battery which is open to the surface of the instrument body is provided, said battery mosquito Inside the over portion, the is provided with the cut-off switch of the battery to be on / off by opening and closing of the battery cover, by providing the battery housing portion between the and the brightness sensor the light source, the brightness There is an effect that the brightness sensor and the light source are kept away from each other, and malfunction of the brightness sensor can be reduced . In addition, by installing the shut-off switch inside the storage battery cover part, it is possible to reduce the size of the instrument body without requiring a special place for installation of the shut-off switch. Since it is automatically performed by the opening / closing operation, there is an effect that it is possible to take measures against the ground voltage when the storage battery cover portion is opened .
[0051]
The invention of claim 2 provides the insulation of the storage battery and the connection portion to the commercial AC power source because the storage battery storage portion is provided in a place away from the connection portion to the commercial AC power source. There is an effect that a sufficient distance can be secured.
[0052]
According to a third aspect of the present invention, in the first aspect of the present invention, since the storage battery housing portion has a temporary holding portion in which the storage battery is inserted and temporarily holds the storage battery, the storage battery is prevented from falling off when the storage battery is replaced. Thus, there is an effect that the storage battery can be easily replaced.
[0053]
According to a fourth aspect of the present invention, in the third aspect of the present invention, the instrument body includes a body and a cover attached to the body, and the temporary holding portion of the storage battery is provided on the body, and the temporary holding is performed. Since the storage battery housed in the part is held by the body and the cover, there is an effect that the storage battery can be improved in retention.
[0055]
The invention of claim 5 has an effect that the hinge part can be reinforced because the hinge for pivotally attaching the storage battery cover part to the instrument body is provided integrally with the instrument body in the invention of claim 1 .
[0056]
According to a sixth aspect of the present invention, in the fifth aspect of the present invention, since the storage battery take-out portion is provided at a location away from the hinge, the hinge does not get in the way when the storage battery is replaced, and the replacement can be easily performed. There is an effect.
[0057]
According to a seventh aspect of the present invention, in the first aspect of the present invention, the state in which the operation is stopped and the storage battery is charged, the state in which the operation is performed according to the instructions of the lighting control circuit and the power failure detection circuit, and the storage battery are inspected. Since the changeover switch for selecting the state is provided and the changeover switch is provided at the upper center of the instrument body, there is an effect that the switch can be easily switched from any direction of the instrument body.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a security light according to an embodiment.
FIG. 2A is a top view of the same.
(B) It is a left side view same as the above.
(C) It is a front view same as the above.
(D) It is a right side view same as the above.
(E) It is a bottom view same as the above.
(F) It is a left sectional view same as the above.
FIG. 3 (a) is a front view when the same storage battery cover is removed.
(B) It is a back view same as the above.
FIG. 4 is a circuit diagram of the above.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Apparatus body 1A Body 1B Body cover 2 Printed circuit board 3 Storage battery 5 Light source cover 6 Storage battery cover 11 Temporary holding part 22 LED
27 Heat ray sensor 28 Brightness sensor

Claims

An instrument body, a brightness sensor that is installed at the upper part of the instrument body and detects a surrounding brightness by facing a light receiving unit on the surface of the instrument body, a light source that is installed at the lower part of the instrument body surface and illuminates the surroundings of the instrument body, A heat ray sensor that detects the presence or absence of a person in the detection area, a lighting control circuit that lights the light source based on detection signals of the brightness sensor and the heat ray sensor, a storage battery that is charged using a commercial AC power source as a charging source, A storage battery storage unit that is installed in the appliance main body between the brightness sensor and the light source and stores the storage battery, and a power failure detection circuit that turns on the light source by the storage battery when a power failure of a commercial AC power source is detected. A storage battery cover that is pivotally attached to the instrument body and that is openable on the surface of the instrument body so as to be openable and closable; Safety lamp according to characterized in that a shut-off switch of the battery to be on / off by opening and closing of the battery cover.

The safety light according to claim 1, wherein the storage battery storage unit is provided at a location away from a connection to a commercial AC power source.

The safety light according to claim 1, wherein the storage battery housing part has a temporary holding part into which a storage battery is inserted and temporarily holds the storage battery.

The instrument main body is composed of a body and a cover attached to the body, the temporary holding portion for the storage battery is provided on the body, and the storage battery stored in the temporary holding portion is connected to the body and the cover. The security light according to claim 3, wherein the safety light is held.

Safety lamp according to claim 1, wherein the hinge for pivotally the battery cover to the instrument body is provided integrally with the instrument body.

The safety light according to claim 5 , wherein a take-out portion of the storage battery is provided at a location away from the hinge .

A changeover switch for selecting a state in which the operation is stopped and the storage battery is charged, a state in which the operation is performed in accordance with instructions from the lighting control circuit and the power failure detection circuit, and a state in which the storage battery is inspected. The safety light according to claim 1, wherein the safety light is provided at an upper center of the instrument body .