JPS6410140B2 - - Google Patents
Info
- Publication number
- JPS6410140B2 JPS6410140B2 JP54053780A JP5378079A JPS6410140B2 JP S6410140 B2 JPS6410140 B2 JP S6410140B2 JP 54053780 A JP54053780 A JP 54053780A JP 5378079 A JP5378079 A JP 5378079A JP S6410140 B2 JPS6410140 B2 JP S6410140B2
- Authority
- JP
- Japan
- Prior art keywords
- relay
- circuit
- coil
- normally open
- open contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003990 capacitor Substances 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000004397 blinking Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
- H05B39/04—Controlling
Landscapes
- Electronic Switches (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Description
【発明の詳細な説明】
本発明は、周囲が暗くなると自動的に負荷であ
る照明器具を点灯する自動スイツチに関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic switch that automatically turns on a load lighting device when the surroundings become dark.
従来のこの種の自動スイツチは、第１図に示す
ように、自動点滅回路１に操作スイツチ２を直列
に接続して負荷３を制御するようにしていた。し
たがつて、操作スイツチ２を入れ忘れたときは周
囲が暗くなつても負荷に通電できないという欠点
を有していた。 In the conventional automatic switch of this type, as shown in FIG. 1, an operating switch 2 is connected in series to an automatic blinking circuit 1 to control a load 3. Therefore, if you forget to turn on the operating switch 2, there is a drawback that the load cannot be energized even if the surroundings are dark.
本発明はかかる点に鑑みて為されたものであつ
て、その目的とするところは、周囲が暗くなると
自動的に負荷に通電して負荷に使用した照明器具
を点灯し、明かるくなると消灯し、しかも周囲が
暗い状態で操作スイツチの操作により消灯、点灯
が自由に行なえるようにし、操作スイツチの操作
忘れによる暗くなつたときの自動点灯不能を防止
することにあり、他の目的とするところは、負荷
の点灯消灯にかかわらず消費電力を極力小さくし
た自動スイツチを提供することにある。 The present invention has been made in view of this point, and its purpose is to automatically energize the load and turn on the lighting equipment used for the load when the surroundings become dark, and turn off the lights when it becomes bright. Moreover, the purpose is to allow the lights to be turned off and on freely by operating the operating switch in dark surroundings, and to prevent automatic lighting failure when it gets dark due to forgetting to operate the operating switch, and other purposes. The object of the present invention is to provide an automatic switch that consumes as little power as possible regardless of whether the load is on or off.
以下実施例により詳細に説明する。第２図に示
すように、自動点滅回路１は、発熱体９と、この
発熱体９により作動するバイメタルに連動する接
点１０と光電変換素子１１とにより構成され、操
作回路４として設けられた常閉形の操作スイツチ
２と接点１０とが直列接続されて、アンド回路５
が構成されている。アンド回路５と、第１のリレ
ーの常開接点１４および第２のリレーの常開接点
１５の並列回路と、負荷３との直列回路は主回路
を構成して電源に接続される。また、負荷３には
第２のリレーのコイル１３が並列接続され、第２
のリレーのコイル１３と、第１のリレーの常開接
点１４と、第２のリレーの常開接点１５とにより
保持回路７が構成される。この保持回路７にはオ
フ時間判定回路６が並列接続される。オフ時間判
定回路６は、コンデンサＣ、コンデンサＣに並列
接続された抵抗Ｒ、およびコンデンサＣに直列接
続された逆流阻止用のダイオードＤからなる充放
電回路と、第１のリレーのコイル１２とにより構
成される。充放電回路の一端は保持回路７の一端
に接続され、充放電回路の他端は第２のリレーの
切換接点１６の常閉接点を介して第１のリレーの
コイル１２の一端に接続されるともに、第２のリ
レーの切換接点１６の常開接点を介して保持回路
７の他端に接続される。また、第１のリレーのコ
イル１２の他端は保持回路７の他端に接続されて
いる。 This will be explained in detail below using examples. As shown in FIG. 2, the automatic blinking circuit 1 is composed of a heating element 9, a contact 10 interlocked with a bimetal actuated by the heating element 9, and a photoelectric conversion element 11. A closed operation switch 2 and a contact 10 are connected in series to form an AND circuit 5.
is configured. The AND circuit 5, the parallel circuit of the normally open contact 14 of the first relay and the normally open contact 15 of the second relay, and the series circuit of the load 3 constitute a main circuit and are connected to a power source. Further, the coil 13 of the second relay is connected in parallel to the load 3, and the second
A holding circuit 7 is constituted by the coil 13 of the relay, the normally open contact 14 of the first relay, and the normally open contact 15 of the second relay. An off-time determining circuit 6 is connected in parallel to this holding circuit 7. The off-time determination circuit 6 includes a charging/discharging circuit consisting of a capacitor C, a resistor R connected in parallel to the capacitor C, and a reverse current blocking diode D connected in series to the capacitor C, and a coil 12 of the first relay. configured. One end of the charging/discharging circuit is connected to one end of the holding circuit 7, and the other end of the charging/discharging circuit is connected to one end of the coil 12 of the first relay via the normally closed contact of the switching contact 16 of the second relay. Both are connected to the other end of the holding circuit 7 via the normally open contact of the switching contact 16 of the second relay. Further, the other end of the coil 12 of the first relay is connected to the other end of the holding circuit 7.
次に動作を説明する。昼間の明かるいときには
光電変換素子１１のインピーダンスが低く、発熱
体９に電流が流れ、接点１０は開極している。し
たがつて、主回路には電流が流れず、発熱体９と
光電変換素子１１とにのみ電流が流れることにな
る。つまり、負荷３には通電されない。次に、夜
間になつて暗くなる（第３図の時刻t1）と、光電
変換素子１１のインピーダンスが高くなり、発熱
体９に流れる電流が微少となり、接点１０が閉極
する。その結果、第１のリレーのコイル１２にダ
イオードＤ、コンデンサＣを介してコンデンサＣ
の充電時間のみ電流が流れ、常開接点１４が閉極
し、第２のリレーのコイル１３が励磁される。ま
た、このとき同時に負荷３に通電される。すなわ
ち、第２のリレーの常開接点１５が閉極するとと
もに、切換接点１６が常開接点側に閉極する。第
１のリレーのコイル１２はコンデンサＣの充電時
間が経過した後（第３図の時刻t2）には無励磁と
なり、常開接点１４は開極するが、第２のリレー
の常開接点１５が閉極していることにより第２の
リレーのコイル１３は励磁状態が保たれ（自己保
持）、負荷３への通電状態が維持される。また、
コンデンサＣは充電状態に保たれる。次に、第３
図の時刻t3で操作スイツチ２を開極すると、第２
のリレーのコイル１３が無励磁状態となり、負荷
３に電流が流れなくなる。その後短時間経過した
時刻t4で操作スイツチ２を再度閉極すると、この
時点ではコンデンサＣが抵抗Ｒを介して十分に放
電されておらず、放電量が少ないから、第１のリ
レーのコイル１２に流れる電流が少なく、第１の
リレーのコイル１２は励磁されない。むなわち、
第２のリレーのコイル１３も励磁されないのであ
つて、負荷３は消灯した状態に維持される。一
方、第３図の時刻t5で操作スイツチ２を開極した
後、長時間経過後の時刻t6で閉極すると、コンデ
ンサＣは抵抗Ｒを通して放電されているから、第
１のリレーのコイル１２を通して電流が流れて第
１のリレーのコイル１２が励磁され、第２のリレ
ーのコイル１３も励磁されて負荷３に通電されて
負荷３が点灯するのである。 Next, the operation will be explained. When it is bright in the daytime, the impedance of the photoelectric conversion element 11 is low, current flows through the heating element 9, and the contact 10 is open. Therefore, no current flows through the main circuit, and current flows only through the heating element 9 and the photoelectric conversion element 11. In other words, the load 3 is not energized. Next, when it gets dark at night (time t 1 in FIG. 3), the impedance of the photoelectric conversion element 11 increases, the current flowing through the heating element 9 becomes minute, and the contact 10 closes. As a result, a capacitor C is connected to the coil 12 of the first relay via a diode D and a capacitor C.
A current flows only during the charging time, the normally open contact 14 is closed, and the coil 13 of the second relay is energized. Also, at this time, the load 3 is energized at the same time. That is, the normally open contact 15 of the second relay is closed, and the switching contact 16 is closed to the normally open contact side. The coil 12 of the first relay becomes de-energized after the charging time of the capacitor C has elapsed (time t 2 in FIG. 3), and the normally open contact 14 opens, but the normally open contact of the second relay 15 is closed, the coil 13 of the second relay is maintained in an excited state (self-holding), and the energization state to the load 3 is maintained. Also,
Capacitor C remains charged. Next, the third
When the operating switch 2 is opened at time t3 in the figure, the second
The coil 13 of the relay becomes de-energized, and no current flows to the load 3. When the operation switch 2 is closed again at time t4 , which has elapsed a short time thereafter, the capacitor C has not been sufficiently discharged through the resistor R at this point and the amount of discharge is small, so the coil 12 of the first relay Since the current flowing through the relay is small, the coil 12 of the first relay is not excited. In other words,
The coil 13 of the second relay is also not energized, and the load 3 is maintained in an extinguished state. On the other hand, when the operating switch 2 is opened at time t5 in Fig. 3 and then closed at time t6 after a long period of time, the capacitor C has been discharged through the resistor R, so the coil of the first relay 12, the coil 12 of the first relay is excited, the coil 13 of the second relay is also excited, and the load 3 is energized, causing the load 3 to light up.
本発明は上述のように、周囲が所定以下の照度
となると閉極する接点と、手動操作を行なつてい
る期間にのみ開極する操作スイツチと、第１のリ
レーの常開接点および第２のリレーの常開接点の
並列回路と、負荷との直列回路よりなる主回路が
電源に接続され、第２のリレーのコイルは負荷に
並列接続され、第１のリレーの常開接点および第
２のリレーの常開接点の並列回路と第２のリレー
のコイルとからなる保持回路にオフ時間判定回路
が並列接続され、オフ時間判定回路は、コンデン
サと、コンデンサに直列接続された逆流阻止用の
ダイオードと、コンデンサに並列接続された放電
用の抵抗とからなる充放電回路を有し、充放電回
路の一端は保持回路の一端に接続され、充放電回
路の他端は第２のリレーの常開接点を介して保持
回路の他端に接続されるとともに、第２のリレー
の常閉接点を介して第１のリレーのコイルの一端
に接続され、第１のリレーのコイルの他端は保持
回路の他端に接続されて成るものであり、周囲が
暗くなると自動的に負荷に通電して負荷に使用し
た照明器具を点灯でき、明かるくなると消灯でき
る上、周囲が暗い状態で操作スイツチの操作によ
つて消灯、点灯を自由に行なうことができ、操作
スイツチの操作忘れによる暗くなつたときの自動
点灯不能を防止できるという効果を奏するもので
ある。また、周囲照度が所定値以下となる接点が
オフ時間判定回路と保持回路との並列回路と電源
との間に挿入されているから、周囲照度が所定値
以上であるときには、オフ時間判定回路や保持回
路には通電されないのであり、負荷に通電されて
いない状態での電力消費が非常に少ないという利
点を有する。さらに、第１のリレーのコイルに対
してコンデンサが直列接続されているから、負荷
点灯時には第２のリレーのコイルにのみ自己保持
電流が流れるのであり、負荷への通電時にむだな
電力消費がないという利点を有する。 As described above, the present invention includes a contact that closes when the surrounding illuminance is below a predetermined level, an operation switch that opens only during manual operation, a normally open contact of a first relay, and a normally open contact of a first relay. A main circuit consisting of a parallel circuit of the normally open contacts of the relay and a series circuit with the load is connected to a power source, a coil of the second relay is connected in parallel to the load, and a normally open contact of the first relay and a series circuit with the load are connected to the power supply. An off-time determination circuit is connected in parallel to a holding circuit consisting of a parallel circuit of the normally open contacts of the relay and a coil of the second relay, and the off-time determination circuit includes a capacitor and a backflow prevention circuit connected in series to the capacitor. It has a charging/discharging circuit consisting of a diode and a discharging resistor connected in parallel to the capacitor, one end of the charging/discharging circuit is connected to one end of the holding circuit, and the other end of the charging/discharging circuit is connected to the normal terminal of the second relay. The holding circuit is connected to the other end of the holding circuit via the open contact, and is connected to one end of the coil of the first relay via the normally closed contact of the second relay, and the other end of the coil of the first relay is connected to the holding circuit. It is connected to the other end of the circuit, and when the surroundings are dark, it can automatically energize the load and turn on the lighting equipment used for the load, and when it becomes bright, it can be turned off. The light can be turned off or turned on freely by operation, and has the effect of preventing automatic lighting from failing when it gets dark due to forgetting to operate the operation switch. In addition, since a contact at which the ambient illuminance is below a predetermined value is inserted between the parallel circuit of the off-time judgment circuit and the holding circuit and the power supply, when the ambient illuminance is above the predetermined value, the off-time judgment circuit and Since the holding circuit is not energized, it has the advantage that power consumption is very low when the load is not energized. Furthermore, since the capacitor is connected in series to the coil of the first relay, self-holding current flows only to the coil of the second relay when the load is turned on, so there is no wasted power consumption when the load is energized. It has the advantage of
第１図は従来の自動スイツチのブロツク回路
図、第２図は本発明の一実施例の具体回路図、第
３図は同上のタイムチヤートである。
１は自動点滅回路、２は操作スイツチ、３は負
荷、６はオフ時間判定回路、７は保持回路、１０
は接点、１２は第１のリレーのコイル、１３は第
２のリレーのコイル、１４は第１のリレーの常開
接点、１５は第２のリレーの常開接点、１６は第
２のリレーの切換接点、Ｃはコンデンサ、Ｄはダ
イオード、Ｒは抵抗である。
FIG. 1 is a block circuit diagram of a conventional automatic switch, FIG. 2 is a specific circuit diagram of an embodiment of the present invention, and FIG. 3 is a time chart of the same. 1 is an automatic blinking circuit, 2 is an operation switch, 3 is a load, 6 is an off-time judgment circuit, 7 is a holding circuit, 10
is a contact, 12 is a coil of the first relay, 13 is a coil of a second relay, 14 is a normally open contact of the first relay, 15 is a normally open contact of the second relay, 16 is a normally open contact of the second relay. A switching contact, C is a capacitor, D is a diode, and R is a resistor.
Claims (1)
と、手動操作を行なつている期間にのみ開極する
操作スイツチと、第１のリレーの常開接点および
第２のリレーの常開接点の並列回路と、負荷との
直列回路よりなる主回路が電源に接続され、第２
のリレーのコイルは負荷に並列接続され、第１の
リレーの常開接点および第２のリレーの常開接点
の並列回路と第２のリレーのコイルとからなる保
持回路にオフ時間判定回路が並列接続され、オフ
時間判定回路は、コンデンサと、コンデンサに直
列接続された逆流阻止用のダイオードと、コンデ
ンサに並列接続された放電用の抵抗とからなる充
放電回路を有し、充放電回路の一端は保持回路の
一端に接続され、充放電回路の他端は第２のリレ
ーの常開接点を介して保持回路の他端に接続され
るとともに、第２のリレーの常閉接点を介して第
１のリレーのコイルの一端に接続され、第１のリ
レーのコイルの他端は保持回路の他端に接続され
て成ることを特徴とする自動スイツチ。1 A contact that closes when the surrounding illuminance falls below a specified level, an operating switch that opens only during manual operation, a normally open contact of the first relay, and a normally open contact of the second relay. A main circuit consisting of a parallel circuit and a series circuit with a load is connected to the power supply, and a second
The coil of the relay is connected in parallel to the load, and the off-time determination circuit is connected in parallel to a holding circuit consisting of a parallel circuit of the normally open contact of the first relay and the normally open contact of the second relay, and the coil of the second relay. The connected off-time determination circuit has a charging/discharging circuit consisting of a capacitor, a reverse current blocking diode connected in series to the capacitor, and a discharging resistor connected in parallel to the capacitor, and has one end of the charging/discharging circuit. is connected to one end of the holding circuit, and the other end of the charging/discharging circuit is connected to the other end of the holding circuit via the normally open contact of the second relay, and the An automatic switch characterized in that the switch is connected to one end of a coil of a first relay, and the other end of the coil of the first relay is connected to the other end of a holding circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5378079A JPS55145433A (en) | 1979-04-30 | 1979-04-30 | Automatic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5378079A JPS55145433A (en) | 1979-04-30 | 1979-04-30 | Automatic switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55145433A JPS55145433A (en) | 1980-11-13 |
| JPS6410140B2 true JPS6410140B2 (en) | 1989-02-21 |
Family
ID=12952319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5378079A Granted JPS55145433A (en) | 1979-04-30 | 1979-04-30 | Automatic switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55145433A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0622446U (en) * | 1991-08-23 | 1994-03-25 | 株式会社日立ホームテック | Free access floor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03257792A (en) * | 1990-03-07 | 1991-11-18 | Sekisui Chem Co Ltd | lighting control device |
-
1979
- 1979-04-30 JP JP5378079A patent/JPS55145433A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0622446U (en) * | 1991-08-23 | 1994-03-25 | 株式会社日立ホームテック | Free access floor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55145433A (en) | 1980-11-13 |
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