JP4155057B2

JP4155057B2 - Outdoor thermal auto switch

Info

Publication number: JP4155057B2
Application number: JP2003048289A
Authority: JP
Inventors: 志朗森; 竜一森
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 2003-02-25
Filing date: 2003-02-25
Publication date: 2008-09-24
Anticipated expiration: 2023-02-25
Also published as: JP2004259563A

Description

【０００１】
【発明の属する技術分野】
本発明は、屋外に配設され人体から放射される熱線を検知して電源から負荷への電源供給を自動でオンオフする屋外用感熱自動スイッチに関するものである。
【０００２】
【従来の技術】
従来から、この種の屋外用感熱自動スイッチとして、図１２に示すものがある（例えば、特許文献１参照）。この屋外用感熱自動スイッチは、人体から放射される熱線を検知する図示しない熱線センサと、熱線センサの出力に応じて電源から負荷への電源供給をオンオフする図示しない制御手段とを備える。熱線センサと制御手段とはハウジングＨに収納されている。ハウジングＨの前面には検知範囲の熱線を熱線センサに集光するレンズＲが露出している。
【０００３】
従来、この種の屋外用感熱自動スイッチは、壁面等の施工面（図示せず）に埋めこみ配設されていた。すなわち、従来は、熱線センサや制御手段等を収納したハウジングＨの一部を壁面等に設けられた埋めこみ穴（図示せず）に埋め込むようにして配設されていた。
【０００４】
【特許文献１】
特開平４−５５７２８号公報（第２−５頁、第１２図）
【０００５】
【発明が解決しようとする課題】
しかし、上記従来の屋外用感熱自動スイッチは、ハウジングの一部を埋めこみ穴に埋め込むようにしていたため、埋めこみ穴を壁面等に設ける必要があった。
【０００６】
ここで、埋めこみ穴は、ハウジングの形状に合わせた形状（一般には矩形状）とする必要があり、穴の形状を整える作業が必要であった。また、埋めこみ穴は、施工面の法線方向から見たハウジングの大きさに近い程度まで大きく開口させてあったため、埋めこみ穴を閉塞するようなハウジングの位置の自由度が低く、従ってハウジングの取付位置の微調整が難しかった。
【０００７】
本発明は上記事由に鑑みてなされたものであり、その目的は、取付位置を容易に微調整することができる屋外用感熱自動スイッチを提供することにある。
【０００８】
【課題を解決するための手段】
請求項１の発明は、人体から放射される熱線を検知する熱線センサと、熱線センサの出力に応じて電源から負荷への電源供給をオンオフする制御手段と、熱線センサと制御手段とが収納されたハウジングと、施工面に固定されて前面にハウジングが取り付けられる取付枠と、ハウジングと施工面との間に介装される防水部材と、手動で操作され制御手段の動作を調整するための調整部を有する調整素子が実装された調整回路基板と、電線が接続される電線接続端子が実装された端子回路基板とを備え、ハウジングは、熱線センサが納装されたセンサブロックと、センサブロック及び調整回路基板並びに端子回路基板がそれぞれ結合したベースと、ベースに結合して調整回路基板及び端子回路基板を覆うボディとを有することを特徴とする。
【０００９】
請求項２の発明は、請求項１の発明において、取付枠には、埋めこみ配線用のボックスに取り付けるための取り付けねじが挿通されるねじ挿通穴が貫設されていることを特徴とする。
【００１０】
請求項３の発明は、請求項１の発明において、取付枠には、施工面がパネル材で形成されているときにパネル材を取付枠との間で挟み込むための挟み金具が取り付けられる挟み金具取付部が設けられていることを特徴とする。
【００１１】
請求項４の発明は、請求項１の発明において、取付枠には施工面から引き出された電線を挿通するための電線挿通穴が貫設され、ハウジングの後面であって施工面の法線方向から見て少なくとも電線挿通穴に重なる部位には前方へ窪んだ電線収納凹部が設けられ、電線収納凹部の内側に露出し電線が接続される電線接続端子を備えることを特徴とする。
【００１２】
請求項５の発明は、請求項１の発明において、取付枠には施工面から引き出された電線を挿通するための電線挿通穴が貫設され、ハウジングの後面の施工面の法線方向から見て電線挿通穴に重なる部位よりも上側に露出し電線が接続される電線接続端子を備えることを特徴とする。
【００１３】
請求項６の発明は、請求項１の発明において、ハウジングから露出して手動で操作され制御手段の動作を調整するための調整部を有する調整素子が実装された調整回路基板と、電線が接続される電線接続端子が実装された端子回路基板とを備え、調整回路基板は実装面を前側へ向け、端子回路基板は実装面を後側へ向けて、調整素子と電線接続端子とが施工面に沿った方向に並ぶようにそれぞれ配置されていることを特徴とする。
【００１４】
請求項７の発明は、請求項１の発明において、ハウジングから露出して手動で操作され制御手段の動作を調整するための調整部を有する調整素子と、ハウジングに結合し調整部を覆う位置とハウジングから分離可能な位置との間でスライド可能なカバーとを備えることを特徴とする。
【００１５】
請求項８の発明は、請求項１の発明において、ハウジングから露出して手動で操作され制御手段の動作を調整するための調整部を有する調整素子と、ハウジングに着脱自在に結合し施工面に露出するハウジングの略全体を覆うカバーとを備えることを特徴とする。
【００１６】
請求項９の発明は、請求項１の発明において、ハウジングから露出して手動で操作され制御手段の動作を調整するための調整部を有する調整素子と、ハウジングに結合し調整部を覆う位置と調整部を露出させる位置との間でハウジングに対して回動自在としたカバーとを備えることを特徴とする。
【００１８】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて説明する。
【００１９】
本実施形態は、図１に示すように、人体を検知する人感センサＴＰ（図２参照）と人感センサＴＰの出力に応じて電源から負荷への電源供給をオンオフする制御手段とが収納されたハウジング１を備える。人感センサＴＰは、人体から放射される熱線を検知する熱線センサとしての焦電素子と、焦電素子の出力信号を増幅する増幅回路等の信号処理回路とを有する。また、施工面Ｓに固定される取付枠２を備え、ハウジング１は取付枠２の前面に取り付けられる。ハウジング１と施工面Ｓとの間には、雨水の浸入を防ぐための防水部材３が介装される。
【００２０】
以下、施工面Ｓに取り付けられた状態での方向に基づいて詳細な説明を行う。つまり、施工面Ｓから離れる方向を前方と呼び、上下は図１を基準とする。
【００２１】
ハウジング１は、図２に示すように、ハウジング１の後面を構成するベース４と、ベース４の前側に結合するボディ５と、人感センサＴＰが収納されベース４とボディ５との間に位置するセンサブロック６とを備える。
【００２２】
ボディ５は、長方形枠状の枠状部５１と、枠状部５１の前方に突出し下面と後面とが開放された直方体形箱状に形成された突台部５２とを備える。枠状部５１の上下の端部には、取付枠２にハウジング１をねじ止めするためのねじＢ２（図１参照）が挿通する取付ねじ挿通穴５３が前後に貫設されている。また、突台部５２の前面の上端部の左右の両端部には、それぞれベース４にボディ５をねじ止めするためのねじ（図示せず）が挿通する組立ねじ挿通穴５４が前後に貫設されている。
【００２３】
ベース４は、厚み方向が施工面Ｓに直交する平板状の第１の後板４１と、第１の後板４１に平行な平板状であって第１の後板４１よりも上側に位置する第２の後板４２とを有する。第１の後板４１と第２の後板４２との間には、第２の後板４２を第１の後板４１よりも前方へ突出させるように傾斜した傾斜板４３が設けられている。
【００２４】
第２の後板４２の左右には、それぞれ第２の後板４２よりも前後に突出して互いに対向する側壁４５が設けられている。各側壁４５の上端部はそれぞれ第２の後板４２よりも上方に突出している。各側壁４５の第２の後板４２よりも上方に突出した部位の前端部同士は、矩形状の貫通穴４６ａが前後に貫設された枠状部４６を介して連結されている。
【００２５】
枠状部４６の前面の上端部の左右両端部には、それぞれ筒状の結合凸部４７が前方へ突設されている。結合凸部４７の内部には図示しないナットが保持されている。また、第１の後板４１の前面の左右両端部には、それぞれ左右に撓み可能な結合片４４が前方へ突設され、各結合片４４の他方の結合片４４から離れた側の面の先部には、それぞれ結合爪４４ａが突設されている。結合爪４４ａがボディ５の突台部５２の内面に設けられた図示しない結合部に係合し、さらに、ボディ５の組立ねじ挿通穴５４に挿通されたねじが、結合凸部４７に保持されたナットに螺合することによってボディ５とベース４とは結合している。
【００２６】
センサブロック６は、図３に示すように、人感センサＴＰが実装されたセンサ回路基板６１と、センサ回路基板６１が収納される収納凹部６２ａ（図４参照）が設けられた基体６２と、赤外光を透過させる材料からなり収納凹部６２ａの開口を覆うドーム状に形成された窓体６３と、基体６２に結合して基体６２との間に窓体６３を保持する環状体６４とからなる。センサ回路基板６１にはねじ挿通穴６１ａが表裏に貫設され、基体６２の収納凹部６２ａの底面のねじ挿通穴６１ａに対応する位置にはねじ穴６２ｂが設けられていて、ねじ挿通穴６１ａに挿通されねじ穴６２ｂに螺合するタッピンねじＢ３（図４参照）によってセンサ回路基板６１は基体６２にねじ止めされている。環状体６４は大きさの異なる２個の開口を有する環状に形成されている。環状体６４の大きい側の開口付近の内周面に基体６２の収納凹部６２ａの開口付近の外周面が嵌合することにより環状体６４と基体６２とは結合し、窓体６３の凸側の面の中央部は環状体６４の小さい側の開口から突出している。
【００２７】
環状体６４の外側面は、球面を、間に中心を含む互いに平行な２つの断面で切り取った形状に形成されている。そして、人感センサＴＰは、環状体６４の中心軸が人感センサＴＰの検知面の中心に直交するように配置されている。また、窓体６３において、環状体６４に覆われずに露出する部位には、それぞれ異なる検知範囲の赤外光を人感センサＴＰの検知面に集光する複数のレンズを一体化した広角レンズとなっているレンズ部６３ａが形成されている。
【００２８】
また、基体６２の収納凹部６２ａを囲む外周面の、収納凹部６２ａの開口面を挟んだ両側には、それぞれ円柱状の軸突起６２ｃが突設されている。環状体６４の大きい側の開口の周縁には、それぞれ軸突起６２ｃをセンサブロック６の外側に突出させる切欠き６４ａが２箇所に設けられている。
【００２９】
さらに、基体６２の収納凹部６２ａの開口面に沿った外周には、窓体６３及び環状体６４と結合したときに窓体６３及び環状体６４との間に隙間を生じさせる切欠き６２ｄが設けられている。従来は、センサブロック６の部品に貫通穴を設け、センサ回路基板６１に一端が接続されたリード線Ｒを上記の貫通穴を通じて引き出していた。従って、センサブロック６を組み立てる際には、予め一端がセンサ回路基板６１に接続されたリード線Ｒの他端を貫通穴に挿通させる作業が必要であった。一方、本実施形態においては、リード線Ｒの一部を基体６２の切欠き６２ｄに収納しながら組み立てればよく、リード線Ｒの他端を上記のような貫通穴に挿通させる作業が必要ないから組み立てが容易であり、製造コストを低減することができる。また、従来は、リード線Ｒの他端を他の回路基板に接続した後にセンサブロック６を組み立てることができなかったが、本実施形態では、センサ回路基板６１に一端が接続されたリード線Ｒの他端を他の回路基板に接続した後であってもセンサブロック６を組み立てることができる。
【００３０】
センサブロック６は、図２に示す組立枠７を介してベース４に結合される。詳しく説明すると、組立枠７には、センサブロック６が挿入される露出穴７１が上下に貫設されている。露出穴７１の内周面はセンサブロック６の環状部６４の外径と同程度の内径を有する球面形状に形成され、露出穴７１の下側の開口は、人感センサＴＰの中心軸に沿った方向から見たセンサブロック６の外径よりも小さくなっている。センサブロック６は、レンズ部６３ａを露出穴７１の下側に突出させる形で露出穴７１の内周面に支持されている。ここで、露出穴７１の内周面の左右には、軸突起６２ｃが収納される軸受凹部７１ａが２箇所に凹設されていて、センサブロック６は２個の軸突起６２ｃを結ぶ直線を軸として組立枠７に対して向きを変え、検知範囲を前後に振ることが可能となっている。また、アーチ形状の押さえ金具８が、両端を挿通するねじＢ４によって、組立枠７の上面の露出穴７１の開口を挟む位置にねじ止めされている。押さえ金具８の中央部がセンサブロック６の上側に位置することによって、露出穴７１からのセンサブロック６の脱落が防止されている。また、組立枠７の左右の端部には、それぞれ後方へ保持片７２が突設されている。ベース４の第１の後板４１には保持片７２に凹凸係合する保持部４８が設けられていて、組立枠７は、保持片７２と保持部４８との係合によってベース４に結合されている。
【００３１】
ところで、センサ回路基板６１には、人感センサＴＰの他に、周囲の明るさを検知するための例えば光電変換素子からなる明るさセンサも実装されている。制御手段は、例えば、周囲が暗くかつ人体の存在が検知されたとき、負荷としての照明への電源の供給をオンし、その後予め設定された動作継続時間が経過したときに照明への電源の供給をオフする。
【００３２】
制御手段は、２枚の回路基板にそれぞれ実装された電子部品によって実現されている。図２に示すように、一方の回路基板（以下、「調整回路基板９」と呼ぶ）には、それぞれ例えば動作継続時間や、照明をオンする条件となる周囲の明るさや、人感センサＴＰの感度など、制御回路の動作を手動で調整するための３個の可変抵抗器Ｖと、本実施形態自体の動作のオンオフを手動で切り換える切り換えスイッチＳＷとが実装されている。他方の回路基板（以下、「端子回路基板１０」と呼ぶ）には、それぞれ電源や負荷に接続された電線Ｌ（図１参照）が接続される３個の電線接続端子を一体化した端子ブロック１１が実装されている。
【００３３】
調整回路基板９の左右の端には、それぞれ上下方向の中間部に保持切欠き９ａが設けられている。ここで、ベース４の各側壁４５の第２の後板４２の前側に突出した部位には、第２の後板４２の前面に連続するリブ４５ａがそれぞれ突設されていて、調整回路基板９は、実装面を前方へ向けて、保持切欠き９ａにベース４のリブ４５ａが圧入されることによってベース４に保持されている。
【００３４】
また、ボディ５の突台部５２の前面には、それぞれ可変抵抗器ＶのつまみＶ１が挿通する３個のつまみ挿通穴５５と、切り換えスイッチＳＷの操作ハンドルＳＷ１が挿通するハンドル挿通穴５６とが前後に貫設されていて、可変抵抗器ＶのつまみＶ１と切り換えスイッチＳＷの操作ハンドルＳＷ１とはハウジング１の前面から突出している。つまり、可変抵抗器Ｖと切り換えスイッチＳＷとが調整素子であり、つまみＶ１と操作ハンドルＳＷ１とが調整部である。
【００３５】
端子ブロック１１は、後面に３個の端子収納凹部１２ａが左右に並べて凹設された端子台１２を備える。各端子収納凹部１２ａには、金属板からなり端子回路基板１０に実装される端子板１３と、電線Ｌの心線を端子板１３に接触した状態に鎖錠する鎖錠ばね１４とがそれぞれ２個ずつと、絶縁材料からなり２個の鎖錠ばね１４の後側に同時に接触する解除釦１５とがそれぞれ収納されている。端子収納凹部１２ａの底面には、それぞれ電線Ｌの１本の心線が挿通される２個の電線挿通穴１２ｂ（図５参照）と、解除釦１５を介して鎖錠ばね１４を押圧して鎖錠状態を解除するための治具（図示せず）が挿通される解除穴１２ｃ（図５参照）とがそれぞれ前後に貫設されている。また、端子台１２の前面の上端部には、４個のねじ穴１２ｄが左右に並べて設けられている。端子回路基板１０にはねじ穴１２ｄにそれぞれ対応する４個の貫通穴１０ａが貫設されていて、端子台１２は、端子回路基板９に後面を接触させて、それぞれ貫通穴１０ａを貫通しねじ穴１２ｄに螺合する４本のねじ（図示せず）によって端子回路基板９に固定されている。ここにおいて、端子収納凹部１２ａの開口は端子回路基板１２ａによって閉塞されている。
【００３６】
また、端子台１２の左右の側面のそれぞれ後端には、係合凹部１２ｅが凹設されている。ここで、ベース４の枠状部４６の左右には、それぞれ左右に撓み可能な保持片４９が前方へ突設され、各保持片４９の先部には、それぞれ他方の保持片４９に近付く方向に突出した引掛け爪４９ａが突設されている。端子台１２は、後端部がベース４の枠状部４６の貫通穴４６ａに挿通され、係合凹部１２ｅにベース４の引掛け爪４９ａが引っ掛かることによってベース４に結合している。同時に、端子回路基板１０も端子台１２を介してベース４に結合している。端子台１２の後端部がベース４の上端部に設けられた貫通穴４６ａに挿通されていることにより、端子ブロック１１はハウジング１の後面の上端部に露出している。
【００３７】
ここで、端子回路基板１０は実装面を後側に向け、調整回路基板９は実装面を前側へ向けている。また、図４に示すように、各可変抵抗器Ｖ及び切換スイッチＳＷと端子ブロック１１とは施工面Ｓに沿った方向に並んでいる。この構成により、それぞれ比較的に背の高い部品である可変抵抗器Ｖと切換スイッチＳＷと端子ブロック１１とが施工面Ｓからの距離が互いに同程度である位置に配置されているから、調整回路基板９と端子回路基板１０との実装面を互いに同じ方向へ向ける場合に比べて施工面Ｓからのハウジング１の突出寸法が小さくなっている。また、つまみＶ１及び操作ハンドルＳＷ１をハウジング１の前面に露出させるとともに端子ブロック１１をハウジング１の後側に露出させることが可能となっている。
【００３８】
また、調整回路基板９と端子回路基板１０とは互いの実装面を対向させているから、調整回路基板９に実装された電子部品と端子回路基板１０に実装された電子部品とが同じ空間に収納され、調整回路基板９と端子回路基板１０との実装面を互いに同じ方向へ向ける場合に比べてハウジング１の内部の空間が有効に利用されるから、ハウジング１の小型化が可能となっている。
【００３９】
また、センサブロック６と調整回路基板９と端子回路基板１０とが全てベースに結合されていることにより、センサブロック６と調整回路基板９と端子回路基板１０とがベース４とボディ５とに分散して結合される場合に比べて組み立てが容易となっており、製造コストを低減することができる。
【００４０】
防水部材３は、図５に示すように、電線挿通穴３１が前後に貫設された長方形枠状に形成されている。防水部材３の上下の端部には、それぞれ貫通穴３２が前後に貫設されている。ここで、ボディ５の後面の取付ねじ挿通穴５３の周囲には円筒状の突部５３ａが突設されていて、この突部５３ａが貫通穴３２に挿通している。また、防水部材３の裏面には、電線Ｌの被覆を剥く際の心線の適切な長さを示すストリップゲージ３３が設けられている。図６に示すように、防水部材３の前面の周縁部には、結合溝３４が全周に亙って設けられている。ここで、ボディ５の枠状部５１の後面の４隅付近には、結合片５７がそれぞれ突設されていて、ボディ５の結合片５７がそれぞれ結合溝３４に圧入されることによってハウジング１と防水部材３とは結合している。ここにおいて、端子ブロック１１の後端部は電線挿通穴３１から露出する。
【００４１】
本実施形態はまた、図１に示すように、つまみ挿通穴５５及びハンドル挿通穴５６から雨水や埃がハウジング１の内部に浸入することを防ぐためのカバー１６を備える。カバー１６は、ボディ５の突台部５２を略覆う程度の大きさの直方体形の箱体の後面と下面とが開放された形状に形成されている。ここで、突台部５２の左右の外側面の後端には、前後に隙間を空けて並んで上下に延びた各２本のガイド片５８がそれぞれ突設されている。カバー１６の左右の内面の後端部には、前後の幅寸法が２本のガイド片５８の間の隙間の幅寸法程度である図示しないガイド突起が突設されている。
【００４２】
カバー１６をボディ５に装着するには、カバー１６の左右のガイド突起をそれぞれガイド片５８の間に差し込むようにして、カバー１６をボディ５に対して下方に移動させる。すると、切り換えスイッチＳＷの操作ハンドルＳＷ１と可変抵抗器ＶのつまみＶ１とがカバー１６に覆われる位置までカバー１６をスライドさせることができる。つまり、ガイド突起がガイド片５８に挟まれることにより、カバー１６はボディ５に保持されるとともにボディ５に対して上下にスライド可能に案内される。逆に、カバー１６をボディ５から取り外すには、カバー１６をボディ５に対して上方へスライドさせればカバー１６はボディ５から取り外される。つまり、工具を用いずにカバー１６を着脱することができる。従って、カバー１６の着脱用の工具によってハウジング１やカバー１６を傷つけるおそれがない。
【００４３】
取付枠２は、電線挿通穴２１が前後に貫設された矩形枠状に形成されている。電線挿通穴２１の上下には、それぞれ取付枠２を施工面Ｓにねじ止めするためのねじＢ１が挿通される長円形の施工ねじ挿通穴２２が前後に貫設されている。また、上側の施工ねじ挿通穴２２の上側と、下側の施工ねじ挿通穴２２の下側とには、それぞれ取付ねじ挿通穴２３が貫設されている。図７に示すように、各取付ねじ挿通穴２３の内部には、それぞれナットＮが保持されている。
【００４４】
本実施形態のハウジング１に防水部材３を結合したものを施工面Ｓに取り付けるには、まず、施工ねじ挿通穴２２を挿通したねじＢ１を施工面Ｓに螺合させることによって取付枠２を施工面Ｓに固定する。次に、施工面Ｓに設けた穴Ｓ１から取付枠２の電線挿通穴２１を通じて引き出した電線Ｌの心線を、防水部材３の電線挿通穴３１を通して端子ブロック１１の電線挿入穴１２ｂに挿入する。その後、ボディ５の取付ねじ挿通穴５３を挿通したねじＢ２をナットＮに螺合させることによって、ハウジング１を取付枠２に固定する。ここにおいて、施工面Ｓの法線方向から見て電線挿通穴２１とベース４の第２の後板４２とは一部が互いに重なる。
【００４５】
ここで、防水部材３の後面の周縁部には２重の突片３５が後方へ突設されていて、ハウジング１が取付枠２に取り付けられた状態において、突片３５の後端は施工面Ｓに密着し、取付枠２は防水部材３の突片３５に囲まれた位置に収納される。また、取付枠２の下端には位置決め突起２５が下方へ延設され、防水部材３の突片３５には位置決め突起２５を避ける位置決め切欠き３５ａが設けられている。位置決め切欠き３５ａの位置と位置決め突起２５の位置とを合わせなければ防水部材３を施工面Ｓに密着させることができないから、取付枠２にハウジング１を取り付ける際に上下を間違えることが防止される。
【００４６】
また、端子ブロック１１の電線挿入穴１２ｂが取付枠２の電線挿通穴２１よりも上側に位置するようにしてある。この構成により、電線Ｌは施工面Ｓ側から端子ブロック１１側にかけて上昇するように傾斜する。従って、防水部材３と施工面Ｓとの間に隙間が生じてそこから雨水が浸入したとしても、雨水が電線Ｌを伝ってハウジング１の内部に浸入することがない。
【００４７】
さらに、ベース４の第２の後板４２を第１の後板４１よりも前方へ突出させてあることにより、ハウジング１の後面において、第２の後板４２と端子ブロック１１との後側、すなわち施工面Ｓの法線方向から見て取付枠２の電線挿通穴２１に重なる部位とその上側とを含む部位には前方へ窪んだ電線収納凹部が形成されている。従って、施工面Ｓから電線Ｌを長めに引き出しても、余った電線Ｌを電線収納凹部に収納することができるから、配線作業が容易になる。ここで、端子ブロック１１に接続する電線Ｌとして例えば断面が長円形であって断面の短手方向の幅寸法が６．５ｍｍであるＶＶＦ２心ケーブルを３本用いる場合、電線収納凹部の深さ寸法を２０ｍｍ程度となるように設計すれば、３本の電線Ｌを十分収納することができる。
【００４８】
上記構成によれば、施工面Ｓに設ける穴Ｓ１は高だか電線Ｌを引き出すだけのものであるから、施工面Ｓにハウジング１を埋めこみ配設する場合に比べて、施工面Ｓに設ける穴Ｓ１が小さくて済み、従って穴Ｓ１を閉塞するハウジング１の位置の自由度が高くなるから、取付位置を容易に微調整することができる。また、本実施形態における電線Ｌを引き出すための穴Ｓ１はホールソーのような工具を用いて用意に設けることができ、穴Ｓ１の形を整える作業も必要ない。
【００４９】
ここで、施工ねじ挿通穴２２の位置はＪＩＳＣ８３７５に規定された大角形連用配線器具の取付枠のボックス取付部のねじ穴の位置に合わせてある。従って、施工ねじ挿通穴２２はねじ挿通穴としても機能し、本実施形態は、図８に示すように埋めこみ配線用のボックスＳ２にも取り付けることができる。また、施工ねじ挿通穴２２の左右両側には、施工面Ｓがパネル材で形成されているときに、取付枠２との間でパネル材を挟み込むための挟み金具（図示せず）を引掛係止する挟み金具取付部としての左右一対の引掛穴２４が貫設されている。従って、本実施形態は挟み金具を用いて取り付けることもできる。
【００５０】
なお、カバー１６はハウジング１に対してスライドする構成としたが、図９に示すように施工面Ｓから露出したハウジング１を略覆う形状にカバー１６を形成してもよい。具体的に説明すると、ボディ５の枠状部５１の左右の側面にはそれぞれ係合突起５ａを突設する。カバー１６は弾性を有する材料で形成し、ハウジング１と同程度の大きさの図示しない凹部を後面に設ける。凹部の内面には係合突起５２ａに係合する図示しない係合凹部を設ける。カバー１６をハウジング１に装着するには、ハウジング１にカバー１６を被せた状態で、施工面Ｓに近付く方向の力をカバー１６に加える。カバー１６をハウジング１から取り外すには、カバー１６とハウジング１との間に治具を差し込んでこじることにより係合突起５２ａと係合凹部との係合を解除する。カバー１６がハウジング１に結合した状態では、ハウジング１の施工面Ｓから露出した部位はセンサブロック６のレンズ部６３ａを除いて略全体がカバー１６に覆われる。ここで、カバー１６をハウジング１に対して上側からスライドさせて装着する場合にはカバー１６はハウジング１の下側を覆うことができない。一方、上記構成によれば、ハウジング１の前面のみならず施工面Ｓの法線方向から見たハウジング１の全周をもカバー１６によって覆うことができる。カバー１６はハウジング１よりもデザインに対する制約が少ないから、ハウジング１がより広い面積に亙ってカバー１６に覆われることにより、ハウジング１とカバー１６とを結合した状態のデザインの自由度が高くなる。
【００５１】
または、図１０に示すようにつまみＶ１と操作ハンドルＳＷ１とを露出させる位置と覆う位置との間でカバー１６を回転自在としてもよい。具体的には、図１１に示すように、カバー１６を、つまみＶ１と操作ハンドルＳＷ１とを覆う程度の大きさの板状の蓋部１６ａと、蓋部１６ａの左右の端から上方にそれぞれ延設されたアーム部１６ｂとを有する形状とする。各アーム部１６ｂの先部には、他方のアーム部１６ｂに近づく方向に突出した軸凸部１６ｃを突設する。ボディ５の突台部５２の左右両側面には、それぞれ軸受け凹部５ｂを儲ける。各軸凸部１６ｃをそれぞれ軸受け凹部５ｂに挿入することによって、カバー１６をハウジング１に対して２個の軸凸部１６ｃを結ぶ直線を軸として回転可能とする。ここで、カバー１６を着脱する場合は、カバー１６を取り外している間にカバー１６を紛失又は破損しやすい。一方上記構成によれば、カバー１６をハウジング１から取り外す必要がないから、カバー１６を紛失するおそれがなく、また破損しにくい。
【００５２】
【発明の効果】
請求項１の発明は、人体から放射される熱線を検知する熱線センサと、熱線センサの出力に応じて電源から負荷への電源供給をオンオフする制御手段と、熱線センサと制御手段とが収納されたハウジングと、施工面に固定されて前面にハウジングが取り付けられる取付枠と、ハウジングと施工面との間に介装される防水部材とを備えるので、ハウジングの一部を埋めこむ穴を施工面に設ける必要がなく、施工面には高だか電線を引き出す程度の穴を設けるだけでよい。従って、ハウジングを埋めこみ配設する場合に比べ、施工面に穴を設ける作業が軽減される上に、施工面に設けた穴を閉塞するようなハウジングの取付位置の自由度が高くなるから、取付位置を容易に微調整することができる。また、手動で操作され制御手段の動作を調整するための調整部を有する調整素子が実装された調整回路基板と、電線が接続される電線接続端子が実装された端子回路基板とを備え、ハウジングは、熱線センサが納装されたセンサブロックと、センサブロック及び調整回路基板並びに端子回路基板がそれぞれ結合したベースと、ベースに結合して調整回路基板及び端子回路基板を覆うボディとを有するので、センサブロックと調整回路基板と端子回路基板とがボディとベースとに分けて結合される場合に比べて組み立てが容易であり、製造コストを低減することができる。
【００５３】
請求項２の発明は、請求項１の発明において、取付枠には、埋めこみ配線用のボックスに取り付けるための取り付けねじが挿通されるねじ挿通穴が貫設されているので、埋めこみ配線用ボックスにも取り付けることができる。
【００５４】
請求項３の発明は、請求項１の発明において、取付枠には、施工面がパネル材で形成されているときにパネル材を取付枠との間で挟み込むための挟み金具が取り付けられる挟み金具取付部が設けられているので、挟み金具を用いた取り付けが可能となる。
【００５５】
請求項４の発明は、請求項１の発明において、取付枠には施工面から引き出された電線を挿通するための電線挿通穴が貫設され、ハウジングの後面であって施工面の法線方向から見て少なくとも電線挿通穴に重なる部位には前方へ窪んだ電線収納凹部が設けられ、電線収納凹部の内側に露出し電線が接続される電線接続端子を備えるので、施工面から引き出され電線接続端子に接続される電線を電線収納凹部に収納することができるから、配線作業が容易になる。
【００５６】
請求項５の発明は、請求項１の発明において、取付枠には施工面から引き出された電線を挿通するための電線挿通穴が貫設され、ハウジングの後面の施工面の法線方向から見て電線挿通穴に重なる部位よりも上側に露出し電線が接続される電線接続端子を備えるので、電線は電線挿通穴よりも高い位置において電線接続端子に接続されるから、電線を伝った水がハウジングの内部に浸入することを防ぐことができる。
【００５７】
請求項６の発明は、請求項１の発明において、ハウジングから露出して手動で操作され制御手段の動作を調整するための調整部を有する調整素子が実装された調整回路基板と、電線が接続される電線接続端子が実装された端子回路基板とを備え、調整回路基板は実装面を前側へ向け、端子回路基板は実装面を後側へ向けて、調整素子と電線接続端子とが施工面に沿った方向に並ぶようにそれぞれ配置されているので、それぞれ比較的に背の高い部品である調整素子と電線接続端子とが施工面からの距離が互いに同程度である位置に配置されることになるから、調整回路基板の実装面と端子回路基板の実装面とを同じ方向に向ける場合に比べて施工面からのハウジングの突出寸法を小さくすることができる。また、電線接続端子をハウジングの後面に露出させるとともに調整部をハウジングの前面に露出させることができる。
【００５８】
請求項７の発明は、請求項１の発明において、ハウジングから露出して手動で操作され制御手段の動作を調整するための調整部を有する調整素子と、ハウジングに結合し調整部を覆う位置とハウジングから分離可能な位置との間でスライド可能なカバーとを備えるので、工具を用いることなくカバーを着脱することができる。従って、カバーの着脱用の工具によってハウジングやカバーを傷つけるおそれがない。
【００５９】
請求項８の発明は、請求項１の発明において、ハウジングから露出して手動で操作され制御手段の動作を調整するための調整部を有する調整素子と、ハウジングに着脱自在に結合し施工面に露出するハウジングの略全体を覆うカバーとを備えるので、カバーが調整部のみを覆う場合に比べ、ハウジングとカバーとを結合した状態のデザインの自由度が高くなる。
【００６１】
請求項９の発明は、請求項１の発明において、ハウジングから露出して手動で操作され制御手段の動作を調整するための調整部を有する調整素子と、ハウジングに結合し調整部を覆う位置と調整部を露出させる位置との間でハウジングに対して回動自在としたカバーとを備えるので、カバーをハウジングから取り外さずに調整部を露出させることができるから、カバーを紛失するおそれがなく、その上カバーを破損しにくくなる。
【図面の簡単な説明】
【図１】本発明の実施形態１の使用法を示す斜視図である。
【図２】同上のハウジングを示す分解斜視図である。
【図３】同上におけるセンサブロックを示す分解斜視図である。
【図４】同上を途中まで組み立てた状態を示す断面図である。
【図５】同上においてハウジングに防水部材を装着したものの背面図である。
【図６】同上に用いられる防水部材を示す斜視図である。
【図７】同上の断面図である。
【図８】同上の別の使用法を示す斜視図である。
【図９】同上の別の形態を示す分解斜視図である。
【図１０】同上の更に別の形態を示す斜視図である。
【図１１】同上の更に別の形態を示す分解斜視図である。
【図１２】従来例を示す図であり、（ａ）は正面図、（ｂ）は側面図である。
【符号の説明】
１ハウジング
２取付枠
３防水部材
４ベース
５ボディ
６センサブロック
９調整回路基板
１０端子回路基板
１１端子ブロック
１６カバー
２１電線挿通穴
２２施工ねじ挿通穴
２４引掛穴
Ｌ電線
Ｓ施工面
ＳＷ切り換えスイッチ
ＳＷ１操作ハンドル
Ｖ可変抵抗器
Ｖ１つまみ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an outdoor thermosensitive automatic switch that detects a heat ray that is disposed outdoors and radiates from a human body, and automatically turns on / off power supply from a power source to a load.
[0002]
[Prior art]
Conventionally, as this type of outdoor heat-sensitive automatic switch, there is one shown in FIG. 12 (see, for example, Patent Document 1). This outdoor heat-sensitive automatic switch includes a heat ray sensor (not shown) that detects a heat ray radiated from a human body, and a control means (not shown) that turns on / off power supply from a power source to a load in accordance with the output of the heat ray sensor. The heat ray sensor and the control means are accommodated in the housing H. A lens R that condenses the heat rays in the detection range to the heat ray sensor is exposed on the front surface of the housing H.
[0003]
Conventionally, this type of outdoor heat-sensitive automatic switch has been embedded in a construction surface (not shown) such as a wall surface. That is, conventionally, a part of the housing H that houses the heat ray sensor, the control means, and the like is disposed so as to be embedded in a buried hole (not shown) provided in the wall surface or the like.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 4-55728 (page 2-5, FIG. 12)
[0005]
[Problems to be solved by the invention]
However, since the conventional outdoor heat-sensitive automatic switch described above is configured such that a part of the housing is embedded in the embedded hole, it is necessary to provide the embedded hole on the wall surface or the like.
[0006]
Here, the embedding hole needs to have a shape (generally rectangular shape) that matches the shape of the housing, and an operation for adjusting the shape of the hole is necessary. In addition, since the burial hole was opened to the extent close to the size of the housing as viewed from the normal direction of the construction surface, the degree of freedom of the position of the housing to close the burial hole was low, so mounting of the housing It was difficult to fine-tune the position.
[0007]
The present invention has been made in view of the above reasons, and an object of the present invention is to provide an outdoor thermosensitive automatic switch in which the mounting position can be easily finely adjusted.
[0008]
[Means for Solving the Problems]
  The invention of claim 1 houses a heat ray sensor for detecting a heat ray radiated from a human body, a control means for turning on / off power supply from a power supply to a load in accordance with an output of the heat ray sensor, a heat ray sensor, and a control means. A housing frame, a mounting frame fixed to the construction surface and mounted on the front surface, and a waterproof member interposed between the housing and the construction surfaceAn adjustment circuit board on which an adjustment element having an adjustment unit for manually operating and adjusting the operation of the control means is mounted; and a terminal circuit board on which an electric wire connection terminal to which an electric wire is connected is mounted. And a sensor block in which the heat ray sensor is mounted, a base to which the sensor block, the adjustment circuit board, and the terminal circuit board are respectively coupled, and a body that is coupled to the base and covers the adjustment circuit board and the terminal circuit board.It is characterized by that.
[0009]
The invention of claim 2 is characterized in that, in the invention of claim 1, a screw insertion hole through which an attachment screw for attaching to a box for embedded wiring is inserted is provided in the attachment frame.
[0010]
According to a third aspect of the present invention, in the first aspect of the present invention, the mounting bracket is attached to the mounting frame with a clamping bracket for sandwiching the panel material with the mounting frame when the construction surface is formed of the panel material. A mounting portion is provided.
[0011]
According to a fourth aspect of the present invention, in the first aspect of the present invention, the mounting frame is provided with a wire insertion hole for inserting an electric wire drawn out from the construction surface, and is a rear surface of the housing, which is a normal direction of the construction surface. When viewed from the side, at least a portion that overlaps with the wire insertion hole is provided with a wire storage recess that is recessed forward, and is provided with a wire connection terminal that is exposed to the inside of the wire storage recess and to which the wire is connected.
[0012]
According to a fifth aspect of the present invention, in the first aspect of the present invention, the mounting frame is provided with an electric wire insertion hole for inserting an electric wire drawn out from the construction surface, and viewed from the normal direction of the construction surface on the rear surface of the housing. And a wire connection terminal that is exposed above the portion that overlaps the wire insertion hole and is connected to the wire.
[0013]
According to a sixth aspect of the present invention, in the first aspect of the present invention, the electric wire is connected to an adjustment circuit board on which an adjustment element having an adjustment portion for adjusting the operation of the control means that is exposed from the housing and is manually operated is mounted. The adjustment circuit board is mounted with the mounting surface facing forward, the terminal circuit board is mounted with the mounting surface facing rearward, and the adjustment element and the wire connection terminal are mounted on the construction surface. Are arranged so as to be aligned in a direction along the line.
[0014]
According to a seventh aspect of the present invention, in the first aspect of the present invention, the adjustment element having an adjustment portion that is exposed from the housing and is manually operated to adjust the operation of the control means, and a position that is coupled to the housing and covers the adjustment portion And a cover slidable between a position separable from the housing.
[0015]
The invention according to claim 8 is the invention according to claim 1, wherein the adjustment element having an adjustment portion for adjusting the operation of the control means exposed from the housing and manually operated is detachably coupled to the housing on the construction surface. And a cover that covers substantially the entire exposed housing.
[0016]
According to a ninth aspect of the present invention, in the first aspect of the present invention, there is provided an adjustment element having an adjustment portion that is exposed from the housing and is manually operated to adjust the operation of the control means, and a position that is coupled to the housing and covers the adjustment portion. And a cover that is rotatable with respect to the housing between a position where the adjusting portion is exposed.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0019]
In this embodiment, as shown in FIG. 1, a human sensor TP (see FIG. 2) that detects a human body and a control unit that turns on and off the power supply from the power source to the load according to the output of the human sensor TP are housed. The housing 1 is provided. The human sensor TP includes a pyroelectric element as a heat ray sensor that detects a heat ray emitted from a human body, and a signal processing circuit such as an amplifier circuit that amplifies an output signal of the pyroelectric element. In addition, an attachment frame 2 fixed to the construction surface S is provided, and the housing 1 is attached to the front surface of the attachment frame 2. Between the housing 1 and the construction surface S, a waterproof member 3 for preventing rainwater from entering is interposed.
[0020]
Hereinafter, detailed description will be given based on the direction in a state of being attached to the construction surface S. That is, the direction away from the construction surface S is called the front, and the upper and lower sides are based on FIG.
[0021]
As shown in FIG. 2, the housing 1 includes a base 4 that forms the rear surface of the housing 1, a body 5 that is coupled to the front side of the base 4, and a human sensor TP that is housed between the base 4 and the body 5. The sensor block 6 is provided.
[0022]
The body 5 includes a frame portion 51 having a rectangular frame shape, and a projecting portion 52 formed in a rectangular parallelepiped box shape projecting forward of the frame portion 51 and having a lower surface and a rear surface opened. At the upper and lower ends of the frame-shaped part 51, mounting screw insertion holes 53 through which screws B2 (see FIG. 1) for screwing the housing 1 into the mounting frame 2 are inserted in the front-rear direction. In addition, assembly screw insertion holes 54 through which screws (not shown) for screwing the body 5 to the base 4 are respectively inserted in the front and rear of the left and right ends of the upper end of the front surface of the projecting portion 52. Has been.
[0023]
The base 4 is a flat plate-like first rear plate 41 whose thickness direction is orthogonal to the construction surface S, and a flat plate shape parallel to the first rear plate 41 and positioned above the first rear plate 41. A second rear plate 42. Between the first rear plate 41 and the second rear plate 42, there is provided an inclined plate 43 that is inclined so as to project the second rear plate 42 forward of the first rear plate 41. .
[0024]
Side walls 45 are provided on the left and right sides of the second rear plate 42 so as to protrude from the front and rear sides of the second rear plate 42 and face each other. The upper ends of the side walls 45 protrude upward from the second rear plate 42. The front end portions of the portions of each side wall 45 protruding above the second rear plate 42 are connected to each other via a frame-like portion 46 in which rectangular through holes 46a are provided in the front-rear direction.
[0025]
At both the left and right end portions of the upper end portion of the front surface of the frame-like portion 46, cylindrical coupling convex portions 47 are provided so as to protrude forward. A nut (not shown) is held inside the coupling convex portion 47. Further, left and right end portions of the front surface of the first rear plate 41 are respectively provided with connecting pieces 44 that can be bent to the left and right, on the surface of each connecting piece 44 on the side away from the other connecting piece 44. A coupling claw 44a protrudes from the tip portion. The coupling claw 44 a engages with a coupling portion (not shown) provided on the inner surface of the protruding portion 52 of the body 5, and the screw inserted through the assembly screw insertion hole 54 of the body 5 is held by the coupling convex portion 47. The body 5 and the base 4 are joined by being screwed to the nut.
[0026]
As shown in FIG. 3, the sensor block 6 includes a sensor circuit board 61 on which the human sensor TP is mounted, a base body 62 provided with a storage recess 62a (see FIG. 4) in which the sensor circuit board 61 is stored, A window body 63 made of a material that transmits infrared light and formed in a dome shape that covers the opening of the housing recess 62 a, and an annular body 64 that is coupled to the base body 62 and holds the window body 63 between the base body 62. Become. The sensor circuit board 61 is provided with screw insertion holes 61a on the front and back sides, and a screw hole 62b is provided at a position corresponding to the screw insertion hole 61a on the bottom surface of the housing recess 62a of the base body 62. The sensor circuit board 61 is screwed to the base 62 by a tapping screw B3 (see FIG. 4) that is inserted and screwed into the screw hole 62b. The annular body 64 is formed in an annular shape having two openings of different sizes. The annular body 64 and the base body 62 are coupled to each other by fitting the outer peripheral surface near the opening of the housing recess 62 a of the base body 62 to the inner peripheral face of the annular body 64 near the large opening. The central portion of the surface protrudes from the opening on the small side of the annular body 64.
[0027]
The outer surface of the annular body 64 is formed in a shape obtained by cutting a spherical surface in two parallel cross sections including the center therebetween. The human sensor TP is arranged so that the central axis of the annular body 64 is orthogonal to the center of the detection surface of the human sensor TP. Further, a wide-angle lens in which a plurality of lenses for condensing infrared light in different detection ranges on the detection surface of the human sensor TP are integrated in a portion of the window 63 that is exposed without being covered by the annular body 64. A lens portion 63a is formed.
[0028]
In addition, cylindrical shaft protrusions 62c are respectively provided on both sides of the outer peripheral surface surrounding the housing recess 62a of the base body 62 with the opening surface of the housing recess 62a interposed therebetween. On the periphery of the opening on the larger side of the annular body 64, notches 64a for projecting the shaft protrusions 62c to the outside of the sensor block 6 are provided at two locations.
[0029]
Further, a notch 62 d that creates a gap between the window body 63 and the annular body 64 when coupled with the window body 63 and the annular body 64 is provided on the outer periphery along the opening surface of the housing recess 62 a of the base body 62. It has been. Conventionally, a through hole is provided in the component of the sensor block 6, and the lead wire R having one end connected to the sensor circuit board 61 is drawn out through the through hole. Therefore, when the sensor block 6 is assembled, it is necessary to insert the other end of the lead wire R, one end of which is connected to the sensor circuit board 61 in advance, through the through hole. On the other hand, in this embodiment, the lead wire R may be assembled while being housed in the notch 62d of the base body 62, and there is no need to insert the other end of the lead wire R into the through hole as described above. Assembly is easy and manufacturing costs can be reduced. Conventionally, the sensor block 6 cannot be assembled after the other end of the lead wire R is connected to another circuit board. However, in the present embodiment, the lead wire R having one end connected to the sensor circuit board 61. Even after the other end is connected to another circuit board, the sensor block 6 can be assembled.
[0030]
The sensor block 6 is coupled to the base 4 via an assembly frame 7 shown in FIG. More specifically, the assembly frame 7 has upper and lower exposure holes 71 into which the sensor block 6 is inserted. The inner peripheral surface of the exposure hole 71 is formed in a spherical shape having an inner diameter approximately equal to the outer diameter of the annular portion 64 of the sensor block 6, and the lower opening of the exposure hole 71 is along the central axis of the human sensor TP. The outer diameter of the sensor block 6 is smaller than that seen from the direction. The sensor block 6 is supported on the inner peripheral surface of the exposure hole 71 so that the lens portion 63 a protrudes below the exposure hole 71. Here, on the left and right sides of the inner peripheral surface of the exposure hole 71, bearing recesses 71a in which the shaft protrusions 62c are accommodated are provided in two places, and the sensor block 6 has a straight line connecting the two shaft protrusions 62c. It is possible to change the direction with respect to the assembly frame 7 and swing the detection range back and forth. In addition, the arch-shaped holding metal fitting 8 is screwed at a position sandwiching the opening of the exposure hole 71 on the upper surface of the assembly frame 7 by a screw B4 inserted through both ends. Since the central portion of the presser fitting 8 is located above the sensor block 6, the sensor block 6 is prevented from falling off from the exposure hole 71. In addition, holding pieces 72 project from the left and right ends of the assembly frame 7 to the rear. The first rear plate 41 of the base 4 is provided with a holding portion 48 that engages with the holding piece 72 so that the assembly frame 7 is coupled to the base 4 by the engagement of the holding piece 72 and the holding portion 48. ing.
[0031]
By the way, in addition to the human sensor TP, the sensor circuit board 61 is also mounted with a brightness sensor composed of, for example, a photoelectric conversion element for detecting ambient brightness. For example, when the surrounding is dark and the presence of a human body is detected, the control means turns on the power supply to the lighting as a load, and then turns on the power supply to the lighting when a preset operation duration time elapses. Turn off the supply.
[0032]
The control means is realized by electronic components respectively mounted on two circuit boards. As shown in FIG. 2, on one circuit board (hereinafter referred to as “adjustment circuit board 9”), for example, the operation duration, the ambient brightness that is the condition for turning on the illumination, and the human sensor TP Three variable resistors V for manually adjusting the operation of the control circuit such as sensitivity, and a changeover switch SW for manually switching on / off of the operation of the present embodiment itself are mounted. The other circuit board (hereinafter referred to as “terminal circuit board 10”) is a terminal block in which three electric wire connection terminals to which electric wires L (see FIG. 1) connected to a power source and a load are respectively connected are integrated. 11 is implemented.
[0033]
At the left and right ends of the adjustment circuit board 9, holding cutouts 9 a are respectively provided in the middle portions in the vertical direction. Here, ribs 45 a that are continuous with the front surface of the second rear plate 42 are respectively provided at portions of the side walls 45 of the base 4 that protrude to the front side of the second rear plate 42, and the adjustment circuit board 9. Is held on the base 4 by pressing the ribs 45a of the base 4 into the holding notches 9a with the mounting surface facing forward.
[0034]
Further, three knob insertion holes 55 through which the knob V1 of the variable resistor V is inserted and a handle insertion hole 56 through which the operation handle SW1 of the changeover switch SW is inserted are respectively provided on the front surface of the projecting portion 52 of the body 5. The knob V <b> 1 of the variable resistor V and the operation handle SW <b> 1 of the changeover switch SW protrude from the front surface of the housing 1. That is, the variable resistor V and the changeover switch SW are adjustment elements, and the knob V1 and the operation handle SW1 are adjustment units.
[0035]
The terminal block 11 includes a terminal block 12 in which three terminal storage recesses 12a are provided on the rear surface so as to be arranged side by side. Each terminal storage recess 12a includes a terminal plate 13 made of a metal plate and mounted on the terminal circuit board 10, and two locking springs 14 that lock the core of the electric wire L in contact with the terminal plate 13. A release button 15 made of an insulating material and simultaneously in contact with the rear side of the two lock springs 14 is housed. On the bottom surface of the terminal storage recess 12a, the lock spring 14 is pressed via two wire insertion holes 12b (see FIG. 5) through which one core wire of the electric wire L is inserted, and a release button 15. Release holes 12c (see FIG. 5) through which jigs (not shown) for releasing the locked state are inserted are respectively provided in the front and rear directions. In addition, four screw holes 12d are provided side by side at the upper end of the front surface of the terminal block 12. The terminal circuit board 10 is provided with four through holes 10a corresponding to the screw holes 12d. The terminal block 12 has the rear surface in contact with the terminal circuit board 9, and passes through the through holes 10a. It is fixed to the terminal circuit board 9 by four screws (not shown) screwed into the holes 12d. Here, the opening of the terminal housing recess 12a is closed by the terminal circuit board 12a.
[0036]
In addition, engagement recesses 12e are formed in the rear ends of the left and right side surfaces of the terminal block 12, respectively. Here, the left and right sides of the frame-like portion 46 of the base 4 are respectively provided with holding pieces 49 that can be deflected to the left and right, and the front portions of the holding pieces 49 are in the direction of approaching the other holding piece 49, respectively. A hooking claw 49a that protrudes from the projection is provided. The terminal block 12 is coupled to the base 4 by the rear end portion being inserted into the through hole 46a of the frame-like portion 46 of the base 4 and the hooking claw 49a of the base 4 being hooked on the engaging recess 12e. At the same time, the terminal circuit board 10 is also coupled to the base 4 via the terminal block 12. The terminal block 11 is exposed at the upper end portion of the rear surface of the housing 1 by inserting the rear end portion of the terminal block 12 through a through hole 46 a provided in the upper end portion of the base 4.
[0037]
Here, the terminal circuit board 10 faces the mounting surface to the rear side, and the adjustment circuit board 9 faces the mounting surface to the front side. Further, as shown in FIG. 4, each variable resistor V and changeover switch SW and the terminal block 11 are arranged in a direction along the construction surface S. With this configuration, the variable resistor V, the change-over switch SW, and the terminal block 11 that are relatively tall parts are arranged at positions where the distance from the construction surface S is approximately the same. The protruding dimension of the housing 1 from the construction surface S is smaller than when the mounting surfaces of the substrate 9 and the terminal circuit substrate 10 are directed in the same direction. Further, the knob V1 and the operation handle SW1 can be exposed on the front surface of the housing 1, and the terminal block 11 can be exposed on the rear side of the housing 1.
[0038]
In addition, since the adjustment circuit board 9 and the terminal circuit board 10 face each other on the mounting surface, the electronic component mounted on the adjustment circuit board 9 and the electronic component mounted on the terminal circuit board 10 are in the same space. Since the space inside the housing 1 is effectively used compared to the case where the mounting surfaces of the adjustment circuit board 9 and the terminal circuit board 10 are oriented in the same direction, the housing 1 can be downsized. Yes.
[0039]
Further, since the sensor block 6, the adjustment circuit board 9, and the terminal circuit board 10 are all coupled to the base, the sensor block 6, the adjustment circuit board 9, and the terminal circuit board 10 are dispersed in the base 4 and the body 5. As compared with the case where they are coupled together, the assembly becomes easier, and the manufacturing cost can be reduced.
[0040]
As shown in FIG. 5, the waterproof member 3 is formed in a rectangular frame shape in which the electric wire insertion holes 31 are provided in the front-rear direction. Through holes 32 are provided at the upper and lower ends of the waterproof member 3 in the front-rear direction. Here, a cylindrical protrusion 53 a is provided around the mounting screw insertion hole 53 on the rear surface of the body 5, and the protrusion 53 a is inserted into the through hole 32. In addition, a strip gauge 33 is provided on the back surface of the waterproof member 3 to indicate an appropriate length of the core wire when the coating of the electric wire L is peeled off. As shown in FIG. 6, a coupling groove 34 is provided over the entire circumference at the peripheral edge of the front surface of the waterproof member 3. Here, in the vicinity of the four corners of the rear surface of the frame-like portion 51 of the body 5, coupling pieces 57 are respectively provided so as to protrude from the housing 1 by press-fitting the coupling pieces 57 of the body 5 into the coupling grooves 34. The waterproof member 3 is coupled. Here, the rear end portion of the terminal block 11 is exposed from the wire insertion hole 31.
[0041]
As shown in FIG. 1, the present embodiment also includes a cover 16 for preventing rainwater and dust from entering the inside of the housing 1 from the knob insertion hole 55 and the handle insertion hole 56. The cover 16 is formed in a shape in which a rear surface and a lower surface of a rectangular parallelepiped box having a size that substantially covers the protruding portion 52 of the body 5 are opened. Here, at the rear ends of the left and right outer surfaces of the projecting part 52, two guide pieces 58 are provided so as to protrude vertically along with a gap in the front and rear. At the rear end portions of the left and right inner surfaces of the cover 16, a guide projection (not shown) having a front-rear width dimension that is about the width dimension of the gap between the two guide pieces 58 is projected.
[0042]
In order to attach the cover 16 to the body 5, the cover 16 is moved downward with respect to the body 5 by inserting the left and right guide protrusions of the cover 16 between the guide pieces 58. Then, the cover 16 can be slid to a position where the operation handle SW1 of the changeover switch SW and the knob V1 of the variable resistor V are covered with the cover 16. That is, when the guide protrusion is sandwiched between the guide pieces 58, the cover 16 is held by the body 5 and is guided to be slidable up and down with respect to the body 5. Conversely, to remove the cover 16 from the body 5, the cover 16 is removed from the body 5 by sliding the cover 16 upward with respect to the body 5. That is, the cover 16 can be attached and detached without using a tool. Therefore, there is no possibility of damaging the housing 1 or the cover 16 with a tool for attaching / detaching the cover 16.
[0043]
The attachment frame 2 is formed in a rectangular frame shape in which the electric wire insertion holes 21 are provided in the front-rear direction. Above and below the wire insertion hole 21, an oblong construction screw insertion hole 22 through which a screw B <b> 1 for screwing the mounting frame 2 to the construction surface S is inserted in the front and rear. In addition, mounting screw insertion holes 23 are provided through the upper side of the upper construction screw insertion hole 22 and the lower side of the lower construction screw insertion hole 22, respectively. As shown in FIG. 7, nuts N are respectively held in the mounting screw insertion holes 23.
[0044]
In order to attach the waterproof member 3 combined with the housing 1 of this embodiment to the construction surface S, first, the mounting frame 2 is constructed by screwing the screw B1 inserted through the construction screw insertion hole 22 into the construction surface S. Fix to surface S. Next, the core wire of the electric wire L drawn from the hole S1 provided in the construction surface S through the electric wire insertion hole 21 of the mounting frame 2 is inserted into the electric wire insertion hole 12b of the terminal block 11 through the electric wire insertion hole 31 of the waterproof member 3. . Thereafter, the housing 1 is fixed to the mounting frame 2 by screwing the screw B2 inserted through the mounting screw insertion hole 53 of the body 5 into the nut N. Here, the electric wire insertion hole 21 and the second rear plate 42 of the base 4 partially overlap each other when viewed from the normal direction of the construction surface S.
[0045]
Here, in the state where the double protrusions 35 are provided rearwardly on the peripheral portion of the rear surface of the waterproof member 3 and the housing 1 is attached to the attachment frame 2, the rear end of the protrusion 35 is the construction surface. The mounting frame 2 is housed in a position surrounded by the protruding pieces 35 of the waterproof member 3. In addition, a positioning projection 25 extends downward from the lower end of the mounting frame 2, and a positioning notch 35 a that avoids the positioning projection 25 is provided on the projecting piece 35 of the waterproof member 3. If the position of the positioning notch 35a and the position of the positioning protrusion 25 are not matched, the waterproof member 3 cannot be brought into close contact with the construction surface S, so that it is possible to prevent the upside down when attaching the housing 1 to the mounting frame 2. .
[0046]
Further, the wire insertion hole 12 b of the terminal block 11 is positioned above the wire insertion hole 21 of the mounting frame 2. With this configuration, the electric wire L is inclined so as to rise from the construction surface S side to the terminal block 11 side. Therefore, even if a gap is generated between the waterproof member 3 and the construction surface S and rainwater enters from the gap, the rainwater does not enter the inside of the housing 1 through the electric wire L.
[0047]
Furthermore, by projecting the second rear plate 42 of the base 4 forward from the first rear plate 41, the rear side of the second rear plate 42 and the terminal block 11 on the rear surface of the housing 1, That is, an electric wire housing recess that is recessed forward is formed in a portion including the portion overlapping the electric wire insertion hole 21 of the mounting frame 2 and the upper side thereof when viewed from the normal direction of the construction surface S. Therefore, even if the electric wire L is pulled out from the construction surface S for a long time, the surplus electric wire L can be stored in the electric wire storage recess, so that the wiring work is facilitated. Here, for example, when three VVF two-core cables having an oval cross section and a width in the short direction of the cross section of 6.5 mm are used as the electric wires L connected to the terminal block 11, the depth dimension of the electric wire housing recesses Is designed to be about 20 mm, the three electric wires L can be sufficiently accommodated.
[0048]
According to the above configuration, since the hole S1 provided in the construction surface S is high or only pulls out the electric wire L, the hole S1 provided in the construction surface S is compared with the case where the housing 1 is embedded and disposed in the construction surface S. Therefore, since the degree of freedom of the position of the housing 1 that closes the hole S1 is increased, the mounting position can be easily finely adjusted. Moreover, the hole S1 for pulling out the electric wire L in the present embodiment can be prepared in advance using a tool such as a hole saw, and the work for adjusting the shape of the hole S1 is not necessary.
[0049]
Here, the position of the construction screw insertion hole 22 is matched with the position of the screw hole of the box mounting portion of the mounting frame of the large-angle continuous wiring apparatus defined in JIS C8375. Therefore, the construction screw insertion hole 22 also functions as a screw insertion hole, and this embodiment can be attached to the embedded wiring box S2 as shown in FIG. Further, on both the left and right sides of the construction screw insertion hole 22, when the construction surface S is formed of a panel material, a catching metal fitting (not shown) for sandwiching the panel material with the mounting frame 2 is hooked. A pair of left and right catching holes 24 are provided as a clamp fitting mounting portion to be stopped. Therefore, this embodiment can also be attached using a pinch fitting.
[0050]
Although the cover 16 is configured to slide with respect to the housing 1, the cover 16 may be formed in a shape that substantially covers the housing 1 exposed from the construction surface S as shown in FIG. More specifically, the engagement protrusions 5a are provided on the left and right side surfaces of the frame-shaped part 51 of the body 5, respectively. The cover 16 is formed of an elastic material, and a recess (not shown) having the same size as the housing 1 is provided on the rear surface. An engagement recess (not shown) that engages with the engagement protrusion 52a is provided on the inner surface of the recess. In order to attach the cover 16 to the housing 1, a force in a direction approaching the construction surface S is applied to the cover 16 in a state where the cover 16 is covered on the housing 1. In order to remove the cover 16 from the housing 1, the engagement between the engagement protrusion 52 a and the engagement recess is released by inserting a jig between the cover 16 and the housing 1. In a state where the cover 16 is coupled to the housing 1, substantially the entire portion exposed from the construction surface S of the housing 1 is covered with the cover 16 except for the lens portion 63 a of the sensor block 6. Here, when the cover 16 is slid from the upper side of the housing 1 and attached, the cover 16 cannot cover the lower side of the housing 1. On the other hand, according to the above configuration, the cover 16 can cover not only the front surface of the housing 1 but also the entire circumference of the housing 1 viewed from the normal direction of the construction surface S. Since the cover 16 has fewer restrictions on the design than the housing 1, the housing 1 is covered with the cover 16 over a larger area, so that the degree of freedom of design in a state in which the housing 1 and the cover 16 are coupled is increased. .
[0051]
Alternatively, as shown in FIG. 10, the cover 16 may be rotatable between a position where the knob V1 and the operation handle SW1 are exposed and a position where the knob V1 is exposed. Specifically, as shown in FIG. 11, the cover 16 extends upward from the plate-shaped lid portion 16a having a size enough to cover the knob V1 and the operation handle SW1, and the left and right ends of the lid portion 16a. It is set as the shape which has the provided arm part 16b. A protruding shaft portion 16c protruding in a direction approaching the other arm portion 16b is provided at the tip of each arm portion 16b. Bearing recesses 5b are provided on the left and right side surfaces of the projecting part 52 of the body 5, respectively. By inserting each shaft projection 16c into the bearing recess 5b, the cover 16 can be rotated about a straight line connecting the two shaft projections 16c to the housing 1 as an axis. Here, when the cover 16 is attached or detached, the cover 16 is easily lost or damaged while the cover 16 is being removed. On the other hand, according to the above configuration, since it is not necessary to remove the cover 16 from the housing 1, the cover 16 is not likely to be lost and is not easily damaged.
[0052]
【The invention's effect】
  The invention of claim 1 houses a heat ray sensor for detecting a heat ray radiated from a human body, a control means for turning on / off power supply from a power supply to a load in accordance with an output of the heat ray sensor, a heat ray sensor, and a control means. Housing, a mounting frame fixed to the construction surface and attached to the front surface of the housing, and a waterproof member interposed between the housing and the construction surface. It is not necessary to provide a hole on the construction surface, and it is only necessary to provide a hole on the construction surface that is high or pulls out the electric wire. Therefore, compared to the case where the housing is embedded and disposed, the work of providing a hole in the construction surface is reduced, and the degree of freedom of the housing mounting position that closes the hole provided in the construction surface is increased. The position can be easily fine-tuned.The housing includes an adjustment circuit board on which an adjustment element having an adjustment portion for manually adjusting the operation of the control means is mounted, and a terminal circuit board on which a wire connection terminal to which an electric wire is connected is mounted, Has a sensor block in which a heat ray sensor is mounted, a base to which the sensor block, the adjustment circuit board, and the terminal circuit board are respectively coupled, and a body that is coupled to the base and covers the adjustment circuit board and the terminal circuit board. As compared with the case where the sensor block, the adjustment circuit board, and the terminal circuit board are divided into the body and the base, the assembly is easy, and the manufacturing cost can be reduced.
[0053]
In the invention of claim 2, in the invention of claim 1, the mounting frame is provided with a screw insertion hole through which a mounting screw for mounting to the embedded wiring box is inserted. Can also be attached.
[0054]
According to a third aspect of the present invention, in the first aspect of the present invention, the mounting bracket is attached to the mounting frame with a clamping bracket for sandwiching the panel material with the mounting frame when the construction surface is formed of the panel material. Since the attachment portion is provided, the attachment using the clamp metal is possible.
[0055]
According to a fourth aspect of the present invention, in the first aspect of the present invention, the mounting frame is provided with a wire insertion hole for inserting an electric wire drawn out from the construction surface, and is a rear surface of the housing, which is a normal direction of the construction surface. At least the part that overlaps the wire insertion hole when viewed from the side is provided with a wire storage recess that is recessed forward, and is equipped with a wire connection terminal that is exposed inside the wire storage recess and connected to the wire. Since the electric wire connected to the terminal can be housed in the wire housing recess, wiring work is facilitated.
[0056]
According to a fifth aspect of the present invention, in the first aspect of the present invention, the mounting frame is provided with an electric wire insertion hole for inserting an electric wire drawn out from the construction surface, and viewed from the normal direction of the construction surface on the rear surface of the housing. Since the electric wire is connected to the electric wire connecting terminal at a position higher than the electric wire insertion hole, the electric water connected to the electric wire is exposed above the portion overlapping the electric wire insertion hole. Intrusion into the housing can be prevented.
[0057]
According to a sixth aspect of the present invention, in the first aspect of the present invention, the electric wire is connected to an adjustment circuit board on which an adjustment element having an adjustment portion for adjusting the operation of the control means that is exposed from the housing and manually operated is mounted. The adjustment circuit board is mounted with the mounting surface facing forward, the terminal circuit board is mounted with the mounting surface facing rearward, and the adjustment element and the wire connection terminal are mounted on the construction surface. Are arranged so that they are aligned in the direction along the line, so that the relatively tall components, the adjustment element and the wire connection terminal, should be arranged at the same distance from the construction surface. Therefore, the projecting dimension of the housing from the construction surface can be made smaller than when the mounting surface of the adjustment circuit board and the mounting surface of the terminal circuit board are directed in the same direction. In addition, the wire connection terminal can be exposed on the rear surface of the housing, and the adjustment portion can be exposed on the front surface of the housing.
[0058]
According to a seventh aspect of the present invention, in the first aspect of the present invention, the adjustment element having an adjustment portion that is exposed from the housing and is manually operated and adjusts the operation of the control means; Since the cover is slidable between the housing and the position that can be separated from the housing, the cover can be attached and detached without using a tool. Therefore, there is no possibility of damaging the housing or the cover with a tool for attaching / detaching the cover.
[0059]
The invention according to claim 8 is the invention according to claim 1, wherein the adjustment element having an adjustment portion for adjusting the operation of the control means exposed from the housing and manually operated is detachably coupled to the housing on the construction surface. Since the cover that covers substantially the entire exposed housing is provided, the degree of freedom of design in a state in which the housing and the cover are coupled to each other is higher than when the cover covers only the adjustment portion.
[0061]
  According to a ninth aspect of the present invention, in the first aspect of the present invention, there is provided an adjustment element having an adjustment portion that is exposed from the housing and is manually operated to adjust the operation of the control means, and a position that is coupled to the housing and covers the adjustment portion. Since it is provided with a cover that is rotatable with respect to the housing between the position where the adjustment part is exposed, the adjustment part can be exposed without removing the cover from the housing, so there is no risk of losing the cover. In addition, the cover is less likely to be damaged.
[Brief description of the drawings]
FIG. 1 is a perspective view showing how to use the first embodiment of the present invention.
FIG. 2 is an exploded perspective view showing the housing.
FIG. 3 is an exploded perspective view showing the sensor block in the same as above.
FIG. 4 is a cross-sectional view showing a state in which the above is partially assembled.
FIG. 5 is a rear view of the housing in which a waterproof member is mounted on the housing.
FIG. 6 is a perspective view showing a waterproof member used in the above.
FIG. 7 is a cross-sectional view of the above.
FIG. 8 is a perspective view showing another usage of the above.
FIG. 9 is an exploded perspective view showing another embodiment of the same.
FIG. 10 is a perspective view showing still another embodiment of the above.
FIG. 11 is an exploded perspective view showing still another embodiment of the above.
12A and 12B are diagrams showing a conventional example, in which FIG. 12A is a front view, and FIG. 12B is a side view.
[Explanation of symbols]
1 Housing
2 Mounting frame
3 Waterproof material
4 base
5 Body
6 Sensor block
9 Adjustment circuit board
10 Terminal circuit board
11 Terminal block
16 Cover
21 Wire insertion hole
22 Installation screw insertion hole
24 hook hole
L electric wire
S Construction surface
SW selector switch
SW1 Operation handle
V variable resistor
V1 knob

Claims

A heat ray sensor for detecting a heat ray radiated from the human body, a control means for turning on / off the power supply from the power source to the load according to the output of the heat ray sensor, a housing containing the heat ray sensor and the control means, and a construction surface A mounting frame that is fixedly attached to the front surface of the housing, a waterproof member that is interposed between the housing and the work surface, and an adjustment element that has an adjustment portion that is manually operated to adjust the operation of the control means are mounted. And a terminal circuit board on which a wire connection terminal to which an electric wire is connected is mounted, a housing including a sensor block in which a heat ray sensor is mounted, a sensor block, an adjustment circuit board, and a terminal circuit board outdoor thermal automatic switch characterized in that it comprises but a base coupled respectively, and a body coupled to the base to cover the adjusting circuit board and the terminal circuit board

2. The outdoor heat-sensitive automatic switch according to claim 1, wherein a screw insertion hole through which an attachment screw for attaching to a box for embedded wiring is inserted is provided in the attachment frame.

The mounting frame is provided with a clamp fitting mounting portion to which a clamp fitting for sandwiching the panel material with the mounting frame is attached when the construction surface is formed of the panel material. The outdoor heat-sensitive automatic switch according to 1.

The mounting frame has a wire insertion hole through which the electric wire drawn from the construction surface is inserted, and the rear surface of the housing and at least overlaps with the wire insertion hole when viewed from the normal direction of the construction surface. The outdoor heat-sensitive automatic switch according to claim 1, further comprising a wire connection terminal provided with a recessed wire storage recess and exposed to the inside of the wire storage recess and connected to the wire.

The mounting frame has a wire insertion hole through which the wire drawn from the construction surface is inserted, and is exposed above the part that overlaps the wire insertion hole when viewed from the normal direction of the construction surface on the rear surface of the housing. The outdoor heat-sensitive automatic switch according to claim 1, further comprising an electric wire connecting terminal to which is connected.

An adjustment circuit board on which an adjustment element having an adjustment portion for adjusting the operation of the control means that is exposed from the housing and is manually operated is mounted, and a terminal circuit board on which a wire connection terminal to which an electric wire is connected is mounted The adjustment circuit board is mounted with the mounting surface facing forward, the terminal circuit board is mounted with the mounting surface facing rearward, and the adjustment elements and wire connection terminals are arranged in a direction along the construction surface. The outdoor heat-sensitive automatic switch according to claim 1.

An adjustment element having an adjustment portion that is exposed from the housing and is manually operated to adjust the operation of the control means, and a cover that is slidable between a position that is coupled to the housing and covers the adjustment portion, and a position that can be separated from the housing The outdoor heat-sensitive automatic switch according to claim 1, further comprising:

An adjustment element having an adjustment portion that is exposed from the housing and is manually operated to adjust the operation of the control means, and a cover that covers the substantially entire housing that is detachably coupled to the housing and exposed to the construction surface. The heat-sensitive automatic switch for outdoor use according to claim 1 characterized by the above-mentioned.

An adjustment element having an adjustment portion that is exposed from the housing and is manually operated to adjust the operation of the control means, and a position that is coupled to the housing and covers the adjustment portion, and a position that exposes the adjustment portion with respect to the housing The outdoor heat-sensitive automatic switch according to claim 1, further comprising a rotatable cover .