JP2004124393A - Safety device for opening/closing machine - Google Patents

Safety device for opening/closing machine Download PDF

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Publication number
JP2004124393A
JP2004124393A JP2002286107A JP2002286107A JP2004124393A JP 2004124393 A JP2004124393 A JP 2004124393A JP 2002286107 A JP2002286107 A JP 2002286107A JP 2002286107 A JP2002286107 A JP 2002286107A JP 2004124393 A JP2004124393 A JP 2004124393A
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Japan
Prior art keywords
safety device
opening
power supply
closing body
battery
Prior art date
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Pending
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JP2002286107A
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Japanese (ja)
Inventor
Takashi Hara
原 敬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Home Technology Corp
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Toshiba Home Technology Corp
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Publication date
Application filed by Toshiba Home Technology Corp filed Critical Toshiba Home Technology Corp
Priority to JP2002286107A priority Critical patent/JP2004124393A/en
Publication of JP2004124393A publication Critical patent/JP2004124393A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety device for an opening/closing machine which eliminates degradation in reliability caused by the exchange of batteries. <P>SOLUTION: Electric power is stored in a battery 27 by electromagnetically connecting a power source to the outside while an opening/closing body 4 is operated. More specifically, the charge of the battery 27 is implemented by electromagnetic connection between the power source 29 of the safety device 11 and the outside, and therefore the safety device 11 can employ a hermetically sealed structure which eliminates the influence of water and mud on the safety device. Further unlike conventional batteries, the present battery 27 need not be exchanged, and therefore maintenance inspection is eliminated. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、開閉体が人や物などの被検知体を挟み込んだときに、この開閉体の動作を停止させる開閉機の安全装置に関する。
【0002】
【従来の技術】
一般に、この種の開閉機は、例えば特許文献1に開示されるように、開閉体の上昇または下降中に操作手段の停止スイッチを操作すると、開閉体を全閉または全開以外の途中位置で停止させることができるようになっているが、可動する開閉体が人や物を挟み込んだときに、緊急停止用の信号を発信して開閉体の動作を直ちに停止させる安全装置を備えたものが知られている。
【0003】
【特許文献1】
特開平10−77774号公報
【0004】
【発明が解決しようとする課題】
こうした安全装置を動作させるための電源としては、従来電池が用いられていたが、電池には寿命があって、いずれは交換を行なわなければならず、しかもその作業は一般の取扱いに不慣れなユーザーが行なうものであり、電池も常備されているとは言い難い状況にあった。また電動開閉機は室外に設置される関係から、雨や泥などの汚れが避けられない上に、電池を交換するための開放構造が必要なことから、ここから侵入した水分によって、電池を保持する電池ホルダーの電極や、周辺の内部電子部品が腐食し、故障が頻発する問題もあった。つまり、ここでの安全装置は、開閉体を緊急に停止させる重要な働きを有しているにも拘らず、上述した電池交換に伴う種々の問題から、信頼性が損なわれている大きな問題を抱えていた。
【0005】
本発明は上記問題点を解決しようとするものであり、電池交換に伴う信頼性の低下を一掃できる開閉機の安全装置を提供することをその目的とする。
【0006】
【課題を解決するための手段】
本発明の開閉機の安全装置は、開閉体と共に可動し、被検知体を挟み込んだときに、該開閉体の動作を停止させる開閉機の安全装置において、前記開閉体の可動に伴なって結合し、動作電圧を供給するものである。
【0007】
この場合、開閉体を可動させながら電源を外部と結合させることで、例えば充電器に電力を蓄えることができる。つまり充電器への充電は、安全装置側にある電源と外部との結合によるものなので、安全装置は密閉構造を採用することができ、水や泥などの影響を受けずに、その劣悪な環境での耐久性が向上する。また、従来の電池とは異なって充電器などを交換する必要がなく、保守点検の必要もない。
【0008】
【発明の実施形態】
以下、本発明における開閉機の安全装置の一実施例について、添付図面を参照しながら説明する。先ず、電動開閉機の全体構成について図1に基づき説明すると、1は電動開閉機の枠体、2は後述する制御部6にモータ3を駆動するための交流電圧を供給する電源ラインである。また、駆動源であるモータ3の回転により巻上げ若しくは巻下げされる開閉体4が、枠体1に形成した開口部5に対向して設けられている。6は枠体1の上部に設けられた制御部であり、これは操作端末7からの操作信号によって、巻上げまたは巻下げの各動作方向にした駆動信号をモータ3に供給する機能を有する。ここでの操作端末7は、制御部6に開閉体4を巻上げる操作信号を出力する開スイッチ8と、制御部6に開閉体4の動作を停止させる操作信号を出力する停止スイッチ9と、制御部6に開閉体4を巻下げる操作信号を出力する閉スイッチ10とを備えており、これらの各操作信号は、例えば赤外線,電波などを利用した有線または無線で制御部6に送り出されるようになっている。
【0009】
11は、開閉体4の下部に取り付けられた安全装置であり、これは開閉体4により人や物などの被検知体の挟み込みを検知部12で検知したときに、無線で制御部6に緊急停止用の異常信号を送信するものである。そして、これを受けた制御部6は、モータ3への駆動信号の供給を直ちに遮断して、挟み込まれた人や物の安全を確保するようにしている。
【0010】
図2は、安全装置11に対する動作電圧供給用の電源21の回路図を示している。同図において、22は枠体1の安全装置11が通過する部位に取り付けられ、前記交流電源ラインからの交流電圧が印加される固定側の電磁誘導コイル、23は安全装置11内に設けられた可動側の電磁誘導コイルであって、開閉体4の巻上げまたは巻下げに伴って、双方の電磁誘導コイル22,23がコア25により電磁結合するようになっている。また26は、電磁誘導コイル23に誘起された交流電圧を整流して直流電圧に変換する整流器としてのダイオードスタックで、これは例えば半導体部品などで構成される。27はダイオードスタック26の出力側両端に接続する充電器としてのバッテリーであり、電磁誘導コイル23に誘起された電力がここで蓄えられると共に、安全装置11の動作電圧として各部に供給されるようになっている。
【0011】
図3は、電磁誘導コイル22,23やコア25を含む電磁結合部の機構的な構成を示したものである。同図において、25AはU字形をなす固定側のコア、25BはI字形をなす可動側のコアで、これは前記図2に示すコア25に相当する。また、コイル22はコア25Aに挿通する例えば樹脂製のボビン28に巻回される一方で、コイル23はコア25Bを取り囲むようにして設けた絶縁紙29に巻回される。双方のコア25A,25Bは、開閉体4に取付けられた安全装置11が所定の位置に移動したときに向かい合って、図3に示すようなロ字状の閉磁路を形成し、これにより固定側のコイル22と可動側のコイル23が電磁気的に結合するようになっている。なお、固定側のコア25Aの位置は、少なくとも開閉体4の移動に伴って、安全装置11内にある移動側のコア25Bと閉磁路が形成されれば、特に限定されない。また、コイル22に供給する電磁誘導の周波数も任意である。そして、電磁誘導コイル22を巻回した固定側のコア25Aと、ダイオードスタック26と、バッテリー27とにより、安全装置11の各部に動作電圧を供給する電源29が構成される。
【0012】
ところで近年は、IHクッキングヒータや電気温水器などの大電力を必要とする機器が普及したことによって、一般家庭にも200Vの供給が必要になってきており、また依然として100V系の電気機器も必要なことから、この両者の給電を同時に可能にするものとして、いわゆる単相3線式の電力供給方式が一般家庭に施されている。これを示したのが、図4の概略図である。
【0013】
同図において、2は前述したR相,S相,T相の各電源電源ラインで、R相またはT相の電圧線とS相の接地線を100V機器31に結線して、交流100Vの給電を行なうと共に、R相の電圧線とT相の電圧線を200V機器32に結線して、交流200Vの給電を行なうように構成している。
【0014】
この単相3線式の電力供給方式は、100V系と200V系の機器31,32を同時に給電できる利点があるが、電気工事において結線する相を間違えると(例えば、図4において100V機器31の入力をS相ではなくR相に結線した場合)、100V機器31に200Vが印加されることになる。特に、新築家屋の電気工事においては、電動開閉機である電動シャッターを始めとして、システムキッチンや浴室乾燥機などのビルドイン機器の電源を結線する際に、上述した結線する相の誤りがあると過電流が流れ、これが長時間に及ぶと機器が故障する懸念を生じていた。
【0015】
図5は、こうした懸念、具体的には図1に示すような電動開閉機(電動シャッター)の場合に100V定格のモータ3へ200Vが印加されたり、あるいは浴室乾燥機において、100V定格のヒータへ200Vが印加されたりすることを回避するために提案されたものである。同図において、41は前記100V機器31や200V機器32に組み込まれる電源監視部たるコントローラで、この電気機器のコントローラ41は、電源電圧ライン2から入力される電源電圧を検知する入力電圧検知回路42と、表示部43と、報知手段たるブザー44と、電源の立上り時に入力電圧検知回路42からの検知信号を判定して、この検知信号に対応した電源電圧ライン2からの入力電圧が、決められた定格電圧の範囲以外であったら、表示部43に異常を表示するか、あるいはブザー44による警報を報知すると共に、主たる大電流負荷である例えば電動開閉機のモータ3や、浴室乾燥機のヒータへの通電を遮断して、こうした大電流負荷の以後の動作を停止させる制御手段45とをそれぞれ備えている。
【0016】
次に、図1〜図3に示す開閉機の動作を説明すると、操作端末7の開スイッチ8を押動操作して、この開スイッチ8の操作信号を制御部6に送出すると、制御部6はモータ3を一方に回転させ、開口部5が下側から徐々に開口するように開閉体4を巻上げる。また、操作端末7の閉スイッチ10を押動操作して、この閉スイッチ10の操作信号を制御部6に送出すると、制御部6はモータ3を他方に回転させ、開口部5が上側から徐々に閉じるように開閉体4を巻下げる。その際、制御部6は開スイッチ8や閉スイッチ10からの操作信号を一度受け付けると、モータ3を一方または他方に回転させ続けるので、開スイッチ8や閉スイッチ10を押し続ける必要はない。また、開閉体4の巻上げまたは巻下げ中に停止スイッチ9を押動操作すると、制御部6は停止スイッチ9からの操作信号を受け付けて、モータ3ひいては開閉体4の動作を停止させる。
【0017】
さらに、開閉体4の可動中に安全装置11の検知部12が押圧されて、人や物などの挟み込みを検知すると、安全装置11から制御部6に無線で緊急停止用の異常信号が送信される。これ受けて制御部6は、モータ3への駆動信号の供給を直ちに遮断して開閉体4の可動を停止させ、挟み込まれた人や物などにそれ以上の負荷が加わらないようにしている。
【0018】
また、開閉体4を巻上げたり巻下げたりする際に、安全装置11側にあるコア25Bが、固定した枠体1に取り付けられたコア25Aと向かい合うと、コア25A,25Bによるロ字状の閉磁路が形成され、双方の電磁誘導コイル22,23が電磁結合する。これにより、コイル22,23の巻数比に比例した交流電圧がコイル23の両端間に誘起され、この電圧がダイオードスタック26により直流に変換された後に、バッテリー27に電力として蓄えられ、バッテリー27の両端間電圧が動作電圧として安全装置11の各部に供給される。
【0019】
以上のように本実施例では、開閉体4と共に可動し、この開閉体4が被検知体を挟み込んだときに、開閉体4の動作を停止させる電動開閉機の安全装置11において、充電器であるバッテリー27と、電磁誘導コイル23を巻回した可動側のコア25Bとを備え、開閉体4の可動に伴って、電源電圧が供給される電磁誘導コイル22を巻回した固定側のコア25Aに、前記可動側のコア25Bが向かい合うと、双方の電磁誘導コイル22,23の電磁結合によりバッテリー27を充電させ、動作電圧を供給する電源29を備えている。
【0020】
この場合の安全装置11は、開閉体4の可動に伴なって電磁結合し、バッテリー27を充電させて動作電圧を供給する電源29を備えていることから、開閉体4を可動させながら電源を外部と電磁結合させることで、バッテリー27に電力を蓄えることができる。つまりバッテリー27への充電は、安全装置11側にある電源29と外部との電磁結合によるものなので、安全装置11は密閉構造を採用することができ、水や泥などの影響を受けずに、その劣悪な環境での耐久性が向上する。また、従来の電池とは異なってバッテリー27を交換する必要がなく、保守点検の必要がない。そのため使用者および電動開閉機の製造者にとって非常に都合がよく、電池交換に伴う信頼性の低下を一掃できる。
【0021】
次に、図5に示す電気機器のコントローラ41について説明すると、100V機器31や200V機器32の電源スイッチ(図示せず)をオンして電源を投入すると、入力電圧検知回路42からの検知信号を読み取り、この検知信号が示す電源電圧ライン2からの電源電圧が、予め記憶された定格電圧の範囲に含まれているか否かを判定する。この判定の結果、電源電圧が定格電圧の範囲内であれば、コントローラ41は大電流負荷である例えば電動開閉機のモータ3への通電を行なうと共に、表示部43には電源電圧が正常である旨の表示を行なう。このとき、ブザー44の警報報知は行なわない。一方、電源電圧が定格電圧の範囲を外れていれば、コントローラ41は電動開閉機のモータ3への通電を直ちに遮断し、表示部43には電源電圧が異常である旨の表示を行なうと共に、ブザー44による警報報知を行なう。なお、ここでは電源の立上り時に電源電圧の判定を行なうようにしているが、例えば一定時間毎にこうした判定を行なうように構成してもよい。
【0022】
このように、電源電圧ライン2からの電源電圧を検知する入力電圧検知回路42と、この入力電圧検知回路42からの検知信号により電源電圧が定格電圧の範囲外であれば、表示手段である表示部43または報知手段であるブザー44により異常を報知すると共に、モータ3などの負荷への通電を直ちに遮断する制御手段45とを備えた電源監視部としてのコントローラ41を、単相3線式の電源電圧ライン2からの給電を受ける100V機器31や200V機器32に設けている。
【0023】
この場合、入力した電源電圧が定格電圧と異なっていた場合には、工事作業者に異常があったことを表示部43やブザー44により速やかに告知できると共に、モータ3の動作を直ちに停止させて、過電流による100V機器31や200V機器32の故障を未然に防止することが可能になる。特に本実施例では、モータ3の動作を直ちに停止した後も、表示部43やブザー44による異常の報知が継続するので、作業者はなぜモータ3が動作しないのかを後でも適確に理解することができる。
【0024】
なお、本発明は上記実施例に限定されるものではなく、本発明の要旨の範囲内において種々の変形実施が可能である。例えば電動開閉機としては、窓用シャッタ,天窓,ルーバ,車庫用シャッタなどに適用してもよい。
【0025】
【発明の効果】
本発明の開閉機の安全装置によれば、従来の安全装置において行われてきた電池交換に伴う信頼性の低下を一掃することが可能になる。
【図面の簡単な説明】
【図1】本発明の一実施例を示す開閉機全体の概略図である。
【図2】同上安全装置の電源をあらわした回路図である。
【図3】同上電磁結合部の機構的な構成をあらわした正面図である。
【図4】同上単相3線式の電源供給形態を表わした概略図である。
【図5】同上電動コントローラの正面図である。
【符号の説明】
4 開閉体
27 バッテリー(充電器)
29 電源
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a safety device for a switch that stops the operation of an opening / closing body when the opening / closing body sandwiches a detection target such as a person or an object.
[0002]
[Prior art]
Generally, as disclosed in Patent Document 1, when a stop switch of operating means is operated while the opening / closing body is being raised or lowered, the opening / closing body is stopped at an intermediate position other than fully closed or fully opened as disclosed in Patent Document 1, for example. However, it is known that a safety device that transmits an emergency stop signal and immediately stops the operation of the opening / closing body when the movable opening / closing body sandwiches a person or an object is known. Have been.
[0003]
[Patent Document 1]
JP-A-10-77774
[Problems to be solved by the invention]
Conventionally, batteries have been used as a power source to operate such safety devices.Batteries, however, have a limited life and must be eventually replaced, and the work must be performed by users who are not used to general handling. However, it was difficult to say that batteries were always available. Also, since the electric switchgear is installed outdoors, dirt such as rain and mud is unavoidable, and an open structure for battery replacement is required. Also, there is a problem that the electrodes of the battery holder and surrounding internal electronic components are corroded, and failures frequently occur. In other words, although the safety device here has an important function of urgently stopping the opening / closing body, the above-described various problems associated with battery replacement have caused a serious problem that reliability has been impaired. I was holding it.
[0005]
An object of the present invention is to solve the above problems, and an object of the present invention is to provide a safety device for a switchgear that can eliminate a decrease in reliability due to battery replacement.
[0006]
[Means for Solving the Problems]
The safety device for a switchgear according to the present invention is a safety device for a switchgear that moves together with the opening / closing body and stops the operation of the opening / closing body when the object to be detected is sandwiched. It supplies an operating voltage.
[0007]
In this case, by connecting the power supply to the outside while moving the opening / closing body, the power can be stored in, for example, a charger. In other words, since the charging of the charger is based on the connection between the power supply on the safety device side and the outside, the safety device can adopt a sealed structure, and is not affected by water, mud, etc. Durability is improved. Unlike a conventional battery, there is no need to replace a charger or the like, and there is no need for maintenance and inspection.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a safety device for a switchgear according to the present invention will be described with reference to the accompanying drawings. First, the overall configuration of the electric switch will be described with reference to FIG. 1. Reference numeral 1 denotes a frame of the electric switch, and reference numeral 2 denotes a power supply line that supplies an AC voltage for driving a motor 3 to a control unit 6 described later. Further, an opening / closing body 4 that is raised or lowered by rotation of a motor 3 as a driving source is provided to face an opening 5 formed in the frame 1. Reference numeral 6 denotes a control unit provided on the upper portion of the frame 1, which has a function of supplying a drive signal in each of the operation directions of hoisting and lowering to the motor 3 in accordance with an operation signal from the operation terminal 7. The operation terminal 7 includes an open switch 8 that outputs an operation signal for winding the opening / closing body 4 to the control unit 6, a stop switch 9 that outputs an operation signal to stop the operation of the opening / closing body 4 to the control unit 6, The control unit 6 includes a closing switch 10 that outputs an operation signal for lowering the opening / closing body 4, and these operation signals are transmitted to the control unit 6 by wire or wireless using, for example, infrared rays or radio waves. It has become.
[0009]
Reference numeral 11 denotes a safety device attached to a lower portion of the opening / closing body 4, which wirelessly sends an emergency signal to the control section 6 when the detection section 12 detects that a detection target such as a person or an object is pinched by the opening / closing body 4. It transmits a stop abnormal signal. Then, the control unit 6 receiving this immediately shuts off the supply of the drive signal to the motor 3 so as to ensure the safety of the person or the object being caught.
[0010]
FIG. 2 shows a circuit diagram of a power supply 21 for supplying an operating voltage to the safety device 11. In the figure, reference numeral 22 denotes a fixed electromagnetic induction coil to which the safety device 11 of the frame 1 passes and to which an AC voltage from the AC power supply line is applied, and reference numeral 23 denotes a portion provided in the safety device 11. The movable side electromagnetic induction coil is configured such that both the electromagnetic induction coils 22 and 23 are electromagnetically coupled by the core 25 when the opening / closing body 4 is wound up or down. Reference numeral 26 denotes a diode stack as a rectifier that rectifies an AC voltage induced in the electromagnetic induction coil 23 and converts the AC voltage into a DC voltage. Reference numeral 27 denotes a battery as a charger connected to both ends of the output side of the diode stack 26, so that the electric power induced in the electromagnetic induction coil 23 is stored here and supplied to each part as the operating voltage of the safety device 11. Has become.
[0011]
FIG. 3 shows a mechanical configuration of an electromagnetic coupling section including the electromagnetic induction coils 22 and 23 and the core 25. In the figure, 25A is a U-shaped fixed core and 25B is an I-shaped movable core, which corresponds to the core 25 shown in FIG. The coil 22 is wound around a bobbin 28 made of, for example, resin, which is inserted into the core 25A, while the coil 23 is wound around insulating paper 29 provided so as to surround the core 25B. The two cores 25A, 25B face each other when the safety device 11 attached to the opening / closing body 4 moves to a predetermined position, and form a closed magnetic path in a rectangular shape as shown in FIG. And the movable-side coil 23 are electromagnetically coupled. The position of the fixed-side core 25A is not particularly limited as long as a closed magnetic path is formed with the movable-side core 25B in the safety device 11 at least with the movement of the opening / closing body 4. The frequency of the electromagnetic induction supplied to the coil 22 is also arbitrary. The fixed side core 25A around which the electromagnetic induction coil 22 is wound, the diode stack 26, and the battery 27 constitute a power supply 29 for supplying an operating voltage to each part of the safety device 11.
[0012]
By the way, in recent years, with the spread of devices requiring large power such as IH cooking heaters and electric water heaters, it has become necessary to supply 200 V to ordinary households, and 100 V electrical devices are still required. For this reason, a so-called single-phase three-wire power supply system has been applied to ordinary households so as to simultaneously supply power to the two. This is illustrated in the schematic diagram of FIG.
[0013]
In the figure, reference numeral 2 denotes each of the above-described power supply lines for the R, S, and T phases. The R or T phase voltage line and the S phase ground line are connected to a 100 V device 31 to supply 100 V AC. , And the R-phase voltage line and the T-phase voltage line are connected to the 200 V device 32 to supply 200 V AC power.
[0014]
This single-phase three-wire power supply method has the advantage that power can be supplied to the 100 V system and the 200 V system devices 31 and 32 at the same time. However, if the phases to be connected in the electric work are wrong (for example, in FIG. When the input is connected to the R phase instead of the S phase), 200 V is applied to the 100 V device 31. In particular, in the electrical work of a newly built house, when connecting the power supply of the built-in equipment such as the system kitchen and the bathroom dryer, including the electric shutter which is the electric switch, it is likely that there is an error in the connection phase described above. Current flows, and if the current flows for a long period of time, there has been a concern that the device will fail.
[0015]
FIG. 5 shows such a concern, specifically, 200 V is applied to the 100 V rated motor 3 in the case of an electric switch (electric shutter) as shown in FIG. 1 or to a 100 V rated heater in a bathroom dryer. This is proposed to avoid applying 200V. In the figure, reference numeral 41 denotes a controller serving as a power supply monitoring unit incorporated in the 100 V device 31 or 200 V device 32. The controller 41 of the electric device includes an input voltage detection circuit 42 for detecting a power supply voltage input from the power supply voltage line 2. And a display section 43, a buzzer 44 as notification means, and a detection signal from the input voltage detection circuit 42 when the power supply rises, and an input voltage from the power supply voltage line 2 corresponding to the detection signal is determined. If the voltage is out of the range of the rated voltage, an abnormality is displayed on the display unit 43 or an alarm by the buzzer 44 is notified, and the main large current load such as the motor 3 of the electric switch, the heater of the bathroom dryer, etc. Control means 45 for interrupting the power supply to the motor and stopping the subsequent operation of such a large current load.
[0016]
Next, the operation of the switchgear shown in FIGS. 1 to 3 will be described. When the open switch 8 of the operation terminal 7 is pushed and the operation signal of the open switch 8 is sent to the control unit 6, the control unit 6 Turns the motor 3 to one side and winds the opening / closing body 4 so that the opening 5 is gradually opened from the lower side. In addition, when the closing switch 10 of the operation terminal 7 is pushed to send an operation signal of the closing switch 10 to the control unit 6, the control unit 6 rotates the motor 3 to the other side, and the opening 5 is gradually opened from above. The opening / closing body 4 is wound down so as to close. At that time, once the control unit 6 receives the operation signal from the open switch 8 or the close switch 10, the control unit 6 continues to rotate the motor 3 to one or the other, so that it is not necessary to keep pushing the open switch 8 or the close switch 10. If the stop switch 9 is pushed while the opening / closing body 4 is being wound or lowered, the control section 6 receives an operation signal from the stop switch 9 and stops the operation of the motor 3 and thus the opening / closing body 4.
[0017]
Further, when the detection unit 12 of the safety device 11 is pressed while the opening / closing body 4 is moving and the entrapment of a person or an object is detected, the safety device 11 wirelessly transmits an emergency stop abnormal signal to the control unit 6. You. In response to this, the control unit 6 immediately shuts off the supply of the drive signal to the motor 3 to stop the movement of the opening / closing body 4 so that no further load is applied to the person or object sandwiched.
[0018]
Further, when the opening / closing body 4 is wound up or down, when the core 25B on the safety device 11 side faces the core 25A attached to the fixed frame body 1, a square-shaped closed magnetic field formed by the cores 25A and 25B. A path is formed, and both electromagnetic induction coils 22, 23 are electromagnetically coupled. As a result, an AC voltage proportional to the turns ratio of the coils 22 and 23 is induced between both ends of the coil 23, and this voltage is converted into DC by the diode stack 26, and then stored in the battery 27 as electric power. The voltage between both ends is supplied to each part of the safety device 11 as an operating voltage.
[0019]
As described above, in the present embodiment, in the safety device 11 of the electric switchgear, which is movable together with the opening / closing member 4 and stops the operation of the opening / closing member 4 when the detected member is sandwiched, the charger A fixed core 25A is provided with a certain battery 27 and a movable core 25B around which the electromagnetic induction coil 23 is wound. In addition, a power supply 29 is provided which supplies the operating voltage by charging the battery 27 by electromagnetic coupling of the two electromagnetic induction coils 22 and 23 when the movable core 25B faces each other.
[0020]
In this case, the safety device 11 is provided with a power supply 29 that electromagnetically couples with the movement of the opening / closing body 4 and charges the battery 27 to supply an operating voltage. Electric power can be stored in the battery 27 by electromagnetically coupling with the outside. That is, since the charging of the battery 27 is performed by electromagnetic coupling between the power supply 29 on the safety device 11 side and the outside, the safety device 11 can adopt a sealed structure, and is not affected by water, mud, etc. The durability in the poor environment is improved. Also, unlike the conventional battery, there is no need to replace the battery 27 and no need for maintenance and inspection. Therefore, it is very convenient for the user and the manufacturer of the electric switchgear, and it is possible to eliminate a decrease in reliability due to battery replacement.
[0021]
Next, the controller 41 of the electric device shown in FIG. 5 will be described. When the power switch (not shown) of the 100 V device 31 or the 200 V device 32 is turned on to turn on the power, the detection signal from the input voltage detection circuit 42 is output. Then, it is determined whether or not the power supply voltage from the power supply voltage line 2 indicated by the detection signal is included in the range of the rated voltage stored in advance. If the result of this determination is that the power supply voltage is within the range of the rated voltage, the controller 41 energizes the motor 3 of a large current load, for example, an electric switchgear, and the display section 43 shows that the power supply voltage is normal. Is displayed. At this time, the warning of the buzzer 44 is not performed. On the other hand, if the power supply voltage is out of the range of the rated voltage, the controller 41 immediately shuts off the power supply to the motor 3 of the electric switch, and the display unit 43 displays that the power supply voltage is abnormal, An alarm is issued by the buzzer 44. Here, the power supply voltage is determined at the time of rising of the power supply. However, such a determination may be made at regular intervals, for example.
[0022]
As described above, the input voltage detection circuit 42 that detects the power supply voltage from the power supply voltage line 2 and the detection signal from the input voltage detection circuit 42 indicate that the power supply voltage is out of the range of the rated voltage, The controller 41 as a power supply monitoring unit including a unit 43 or a control unit 45 for notifying an abnormality by a buzzer 44 as a notifying unit and immediately interrupting energization to a load such as the motor 3 is connected to a single-phase three-wire system. It is provided in a 100 V device 31 or a 200 V device 32 that receives power supply from the power supply voltage line 2.
[0023]
In this case, when the input power supply voltage is different from the rated voltage, the display 43 or the buzzer 44 can promptly notify the construction worker of the abnormality, and the operation of the motor 3 is immediately stopped. In addition, it is possible to prevent a failure of the 100 V device 31 or the 200 V device 32 due to an overcurrent. In particular, in the present embodiment, even after the operation of the motor 3 is immediately stopped, the notification of the abnormality by the display unit 43 and the buzzer 44 continues, so that the operator properly understands why the motor 3 does not operate even afterward. be able to.
[0024]
The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention. For example, the electric switch may be applied to a window shutter, a skylight, a louver, a garage shutter, or the like.
[0025]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the safety device of the switchgear of this invention, it becomes possible to wipe out the fall of reliability accompanying the battery replacement performed in the conventional safety device.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of an entire switchgear showing one embodiment of the present invention.
FIG. 2 is a circuit diagram showing a power supply of the safety device.
FIG. 3 is a front view showing a mechanical configuration of the electromagnetic coupling unit.
FIG. 4 is a schematic diagram showing a single-phase three-wire power supply mode according to the first embodiment;
FIG. 5 is a front view of the electric controller.
[Explanation of symbols]
4 opening and closing body 27 battery (charger)
29 power supply

Claims (1)

開閉体と共に可動し、被検知体を挟み込んだときに、該開閉体の動作を停止させる開閉機の安全装置において、前記開閉体の可動に伴なって結合し、動作電圧を供給する電源を備えたことを特徴とする開閉機の安全装置。A safety device for a switch which is movable together with the opening and closing member and stops the operation of the opening and closing member when the object to be detected is sandwiched, comprising a power supply coupled with the movement of the opening and closing member and supplying an operating voltage. A safety device for a switchgear.
JP2002286107A 2002-09-30 2002-09-30 Safety device for opening/closing machine Pending JP2004124393A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002286107A JP2004124393A (en) 2002-09-30 2002-09-30 Safety device for opening/closing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002286107A JP2004124393A (en) 2002-09-30 2002-09-30 Safety device for opening/closing machine

Publications (1)

Publication Number Publication Date
JP2004124393A true JP2004124393A (en) 2004-04-22

Family

ID=32279242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002286107A Pending JP2004124393A (en) 2002-09-30 2002-09-30 Safety device for opening/closing machine

Country Status (1)

Country Link
JP (1) JP2004124393A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010127018A (en) * 2008-11-28 2010-06-10 Sanwa Shutter Corp Remote control device for electric shutter for building
JP2010127017A (en) * 2008-11-28 2010-06-10 Sanwa Shutter Corp Operating implement in electric shutter apparatus for building
CN107923219A (en) * 2015-08-28 2018-04-17 尚飞运营有限公司 Close or the recharge method of the housed device of sunshade protection and storage battery for this equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010127018A (en) * 2008-11-28 2010-06-10 Sanwa Shutter Corp Remote control device for electric shutter for building
JP2010127017A (en) * 2008-11-28 2010-06-10 Sanwa Shutter Corp Operating implement in electric shutter apparatus for building
CN107923219A (en) * 2015-08-28 2018-04-17 尚飞运营有限公司 Close or the recharge method of the housed device of sunshade protection and storage battery for this equipment
CN107923219B (en) * 2015-08-28 2019-04-16 尚飞运营有限公司 The recharge method of the housed device and the battery for this equipment of closing or sunshade protection

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