JP4206999B2

JP4206999B2 - Remote control circuit breaker

Info

Publication number: JP4206999B2
Application number: JP2004381383A
Authority: JP
Inventors: 敏宏大井戸; 和弘安田; 雅隆神田
Original assignee: Panasonic Corp; Matsushita Electric Works Ltd
Current assignee: Panasonic Corp; Panasonic Electric Works Co Ltd
Priority date: 2004-12-28
Filing date: 2004-12-28
Publication date: 2009-01-14
Anticipated expiration: 2024-12-28
Also published as: JP2006185879A

Description

本発明は、リモートコントロール式回路遮断器に関するものである。 The present invention relates to a remote control circuit breaker.

従来から提供されているリモートコントロール式回路遮断器（以下、「リモコンブレーカ」と略称する）としては、電源側端子と負荷側端子との間の主電路に挿入された主接点装置と、主電路に異常電流が流れたときに主接点装置を開極させる接点開閉装置と、外部からの制御信号により主接点装置の開閉状態を反転させるように主接点装置を駆動する遠隔開閉装置と、遠隔開閉装置に制御信号を与えるための外部電線が接続される遠隔制御端子とを備えるものが知られている（たとえば、特許文献１参照）。 Conventionally provided remote control circuit breakers (hereinafter abbreviated as “remote control breaker”) include a main contact device inserted in a main circuit between a power supply side terminal and a load side terminal, and a main circuit A contact switching device that opens the main contact device when an abnormal current flows through, a remote switching device that drives the main contact device to reverse the switching state of the main contact device by an external control signal, and remote switching What is provided with the remote control terminal to which the external electric wire for giving a control signal to an apparatus is connected is known (for example, refer patent document 1).

特許文献１に記載されたリモコンブレーカでは、いわゆる分電盤協約寸法（ＪＩＳ規格における電灯配線用しゃ断器の寸法）における単位寸法の器体に上述した構成を１極分設けている。このリモコンブレーカを分電盤に取り付けるときには、必要な極数分の器体を連接して配置するとともに、同寸法の器体に収納した漏電検出装置を必要に応じて連接して配置する。漏電検出装置は負荷回路における漏電の有無を検出し、漏電の発生を検出すると引き外し用電磁石を動作させるように構成されている。引き外し用電磁石は、連接して配置されるリモコンブレーカの接点開閉装置に機械的に結合され、漏電の発生により引き外し用電磁石が動作するとリモコンブレーカの接点開閉装置を駆動し、主接点装置を開極させる。 In the remote control breaker described in Patent Document 1, the above-described configuration is provided for one pole in a unit body having a so-called distribution board agreement dimension (dimension of a light wiring breaker in JIS standard). When this remote control breaker is attached to the distribution board, the necessary number of poles are connected and arranged, and the leakage detectors housed in the same size of the box are connected as needed. The leakage detection device is configured to detect the presence or absence of leakage in the load circuit, and operate the tripping electromagnet when the occurrence of leakage is detected. The tripping electromagnet is mechanically coupled to the contact breaker of the remote control breaker that is connected in series, and when the tripping electromagnet operates due to the occurrence of electric leakage, it drives the contact breaker of the remote control breaker and Open the pole.

一方、図５に示すように、遠隔開閉装置１６は、励磁用のコイル１６ｘに通電する向きに応じてプランジャ（図示せず）を進退させるように構成された双安定型の有極電磁石装置と、コイル１６ｘの一端に接続される共通接点および共通接点と選択的に接続される２つの切換接点を備える切換スイッチ１７と、切換スイッチ１７の各切換接点に一端が接続された２個のダイオードＤ１，Ｄ２とを備える。ダイオードＤ１，Ｄ２の他端は遠隔制御端子１８ａに接続される。ここに、図示例ではダイオードＤ１はアノードが遠隔制御端子１８ａに接続され、ダイオードＤ２はカソードが遠隔制御端子１８ａに接続されている。また、コイル１６ｘの他端は遠隔制御端子１８ｂに接続される。特許文献１では切換スイッチ１７として小型スイッチを用いている。 On the other hand, as shown in FIG. 5, the remote opening / closing device 16 includes a bistable polarized electromagnet device configured to advance and retract a plunger (not shown) in accordance with the direction in which the excitation coil 16 x is energized. The changeover switch 17 having a common contact connected to one end of the coil 16x and two changeover contacts selectively connected to the common contact, and two diodes D1 having one end connected to each changeover contact of the changeover switch 17 , D2. The other ends of the diodes D1 and D2 are connected to the remote control terminal 18a. In the illustrated example, the diode D1 has an anode connected to the remote control terminal 18a, and the diode D2 has a cathode connected to the remote control terminal 18a. The other end of the coil 16x is connected to the remote control terminal 18b. In Patent Document 1, a small switch is used as the changeover switch 17.

遠隔制御端子１８ａ，１８ｂに与える制御信号は、２個の切換接点を有した操作スイッチＳＷと、操作スイッチＳＷの切換接点にそれぞれ一端が接続され他端が遠隔制御端子１８ａに接続される２個のダイオードＤ３，Ｄ４とを備える操作回路２１を用い、操作スイッチＳＷの共通接点と遠隔制御端子１８ｂとの間に交流電源ＡＣを接続することによって与えられる。図示例ではダイオードＤ３はカソードが遠隔制御端子１８ａに接続され、ダイオードＤ４はアノードが遠隔制御端子１８ａに接続されている。つまり、遠隔制御端子１８ａを挟んでダイオードＤ１とダイオードＤ３とが順直列に接続され、遠隔制御端子１８ａを挟んでダイオードＤ２とダイオードＤ４とが順直列に接続される。 The control signals given to the remote control terminals 18a and 18b are the operation switch SW having two switching contacts, and two control signals having one end connected to the switching contact of the operation switch SW and the other end connected to the remote control terminal 18a. This is given by connecting the AC power supply AC between the common contact of the operation switch SW and the remote control terminal 18b using the operation circuit 21 having the diodes D3 and D4. In the illustrated example, the diode D3 has a cathode connected to the remote control terminal 18a, and the diode D4 has an anode connected to the remote control terminal 18a. That is, the diode D1 and the diode D3 are connected in series with the remote control terminal 18a interposed therebetween, and the diode D2 and the diode D4 are connected in series with the remote control terminal 18a interposed therebetween.

したがって、図５に示すように、切換スイッチ１７がダイオードＤ１を選択している状態では、操作スイッチＳＷでダイオードＤ３を選択すれば、交流電源ＡＣからダイオードＤ３，Ｄ１とコイル１６ｘとを通る経路で電流が流れるから遠隔開閉装置１６が動作する。遠隔開閉装置１６が動作すると主接点装置の開閉状態が反転し、また切換スイッチ１７の接点位置が反転してダイオードＤ２が選択される。つまり、交流電源ＡＣからコイル１６ｘへの通電が停止し、有極電磁石装置の位置が維持される。次に、操作スイッチＳＷでダイオードＤ４を選択すれば、交流電源ＡＣからコイル１６ｘとダイオードＤ２，Ｄ４とを通る経路で電流が流れるから遠隔開閉装置１６が動作する。このとき、操作スイッチＳＷでダイオードＤ３を選択しているときとは逆向きの電流がコイル１６ｘを通過するから、主接点装置の開閉状態が反転し、また切換スイッチ１７の接点位置が反転してダイオードＤ１が選択された図５の状態に戻る。このように、操作スイッチＳＷの操作によって主接点装置の開閉状態を制御することが可能になる。 Therefore, as shown in FIG. 5, in the state in which the changeover switch 17 selects the diode D1, if the diode D3 is selected by the operation switch SW, the path passing from the AC power supply AC to the diodes D3 and D1 and the coil 16x. Since the current flows, the remote switching device 16 operates. When the remote switching device 16 operates, the open / close state of the main contact device is reversed, and the contact position of the changeover switch 17 is reversed to select the diode D2. That is, energization from the AC power supply AC to the coil 16x is stopped, and the position of the polarized electromagnet device is maintained. Next, when the diode D4 is selected by the operation switch SW, a current flows from the AC power source AC through a path passing through the coil 16x and the diodes D2 and D4, so that the remote switching device 16 operates. At this time, since the current in the direction opposite to that when the diode D3 is selected by the operation switch SW passes through the coil 16x, the open / close state of the main contact device is reversed, and the contact position of the changeover switch 17 is reversed. Returning to the state of FIG. 5 in which the diode D1 has been selected. In this way, it is possible to control the open / close state of the main contact device by operating the operation switch SW.

ところで、図６に示すように、複数個のリモコンブレーカＢを分電盤Ｃの中に収納し、各リモコンブレーカＢの主接点装置の開閉状態を制御する操作回路２１を接続するには、分電盤Ｃの中に複数個の端子２０ｃを備えた端子台２０を設ける。ここでは、一般的な例として、分電盤Ｃの中で主幹ブレーカ（図示せず）からの幹線に接続された交流電源ＡＣの電路を単相三線式とする。すなわち、図６においては幹線となる３本の導電バーＤａ，Ｄｂ，Ｄｃを配置しているものとする。 By the way, as shown in FIG. 6, a plurality of remote control breakers B are housed in a distribution board C, and an operation circuit 21 for controlling the open / close state of the main contact device of each remote control breaker B is connected. A terminal block 20 having a plurality of terminals 20 c is provided in the electrical panel C. Here, as a general example, the electric circuit of AC power supply AC connected to the main line from the main breaker (not shown) in distribution board C is a single-phase three-wire system. That is, in FIG. 6, it is assumed that three conductive bars Da, Db, and Dc that are trunk lines are arranged.

端子台２０に設けた端子２０ｃのうちの１つには中性極（Ｎ相）の導電バーＤｂに接続線２３を用いて接続され、残りの端子２０ｃにはリモコンブレーカＢの遠隔制御端子１８ｂがそれぞれ接続線２２を用いて接続される。ここに、図５に示した構成例では、遠隔制御端子１８ａに操作回路２１を接続しているが、図６の例では遠隔制御端子１８ｂに操作回路２１を接続している。したがって、遠隔制御端子１８ａが交流電源ＡＣに接続される。つまり、各リモコンブレーカＢの遠隔制御端子１８ａはそれぞれ接続線２４を用いて送り配線がなされ、分電盤Ｃの上部に配置した保護素子としてのヒューズＦを介して１つの電圧極（図示例ではＲ相）に接続される。 One of the terminals 20c provided on the terminal block 20 is connected to a neutral pole (N-phase) conductive bar Db using a connection line 23, and the remaining terminal 20c is connected to a remote control terminal 18b of the remote control breaker B. Are connected using a connection line 22. Here, in the configuration example shown in FIG. 5, the operation circuit 21 is connected to the remote control terminal 18a, but in the example of FIG. 6, the operation circuit 21 is connected to the remote control terminal 18b. Therefore, the remote control terminal 18a is connected to the AC power source AC. In other words, the remote control terminal 18a of each remote control breaker B is wired by using the connection line 24, and one voltage electrode (in the illustrated example) is provided via the fuse F as a protective element arranged on the upper part of the distribution board C. R phase).

また、図５に示した構成例では、主接点装置と接点開閉装置と遠隔開閉装置と遠隔制御端子とを１つの器体に１極分ずつ設ける場合を想定しているが、図６に示す構成例では２極分の主接点装置と２極分の主接点装置に共用した接点開閉装置とを含む遮断機能部Ｂｏを１つの器体に設け、１つの遠隔開閉装置を用いて遮断機能部Ｂｏが２極分の主接点装置を開閉するように構成してある。したがって、各リモコンブレーカＢは２極分の電源側端子１１ａ，１１ｂと２極分の負荷側端子１２ａ，１２ｂを備える。電源側端子１１ａは一方の電圧極に接続され、電源側端子１１ｂは中性極に接続される。 Further, in the configuration example shown in FIG. 5, it is assumed that the main contact device, the contact switching device, the remote switching device, and the remote control terminal are provided for each pole in one container, but shown in FIG. 6. In the configuration example, a blocking function unit Bo including a main contact device for two poles and a contact switching device shared by the main contact device for two poles is provided in one container, and the blocking function unit is configured using one remote switching device. Bo is configured to open and close the main contact device for two poles. Therefore, each remote control breaker B includes power supply side terminals 11a and 11b for two poles and load side terminals 12a and 12b for two poles. The power supply side terminal 11a is connected to one voltage electrode, and the power supply side terminal 11b is connected to the neutral electrode.

一方、操作回路２１の一端は端子台２０に設けた端子２０ｃに接続され、操作回路２１の他端は接続線２５を用いて送り配線がなされ端子台２０において中性極の導電バーＤｂと接続した端子２０ｃに接続される。このような接続関係により、各操作回路２１の一端が交流電源ＡＣの中性極に接続され、各操作回路２１の他端が２つの遠隔制御端子１８ａ，１８ｂの一方に接続され、さらに遠隔制御端子１８ａ，１８ｂの他方が保護素子としてのヒューズＦを介して交流電源の１つの電圧極に接続されるのである。
特開平８−２６４０９７号公報 On the other hand, one end of the operation circuit 21 is connected to a terminal 20 c provided on the terminal block 20, and the other end of the operation circuit 21 is connected with a feed wire using a connection line 25, and is connected to the conductive bar Db of the neutral electrode in the terminal block 20. Connected to the terminal 20c. With such a connection relationship, one end of each operation circuit 21 is connected to the neutral pole of the AC power supply AC, the other end of each operation circuit 21 is connected to one of the two remote control terminals 18a and 18b, and further remote control is performed. The other of the terminals 18a and 18b is connected to one voltage electrode of the AC power supply via a fuse F as a protective element.
JP-A-8-264097

上述したように、従来のリモコンブレーカＢでは、操作回路２１を介して遠隔制御端子１８ａ，１８ｂに交流電源ＡＣを接続するから、一方の遠隔制御端子１８ａ，１８ｂと交流電源ＡＣとの間にヒューズＦのような保護素子を設ける必要があり、分電盤Ｃ内に配置する部材の増加につながっていた。また、遠隔制御端子１８ａ，１８ｂの一方（図示例では遠隔制御端子１８ｂ）と端子台２０の端子２０ｃとを結線する接続線２２のほか、中性極を端子２０ｃに接続する接続線２３、遠隔制御端子１８ａの送り配線用の接続線２４、操作回路２１の間の接続線２５が必要であり、接続線２２〜２５の接続箇所がそれぞれ異なっているから、接続線２２〜２５の接続箇所の確認作業に手間がかかるという問題が生じる。接続線２４を用いずに遠隔制御端子１８ｂをそれぞれ個別に交流電源ＡＣの電圧極に接続すれば、接続関係はわかりやすくなるものの、ヒューズＦのような保護素子が多数必要になり、分電盤Ｃ内に配置する部材が一層増加することになる。 As described above, in the conventional remote control breaker B, since the AC power supply AC is connected to the remote control terminals 18a and 18b via the operation circuit 21, a fuse is provided between one of the remote control terminals 18a and 18b and the AC power supply AC. It was necessary to provide a protective element such as F, which led to an increase in the number of members arranged in the distribution board C. In addition to the connection line 22 for connecting one of the remote control terminals 18a and 18b (the remote control terminal 18b in the illustrated example) and the terminal 20c of the terminal block 20, the connection line 23 for connecting the neutral electrode to the terminal 20c, Since the connection line 24 for the feed wiring of the control terminal 18a and the connection line 25 between the operation circuits 21 are necessary, and the connection points of the connection lines 22 to 25 are different, the connection points of the connection lines 22 to 25 are different. There is a problem that the confirmation work takes time. If the remote control terminals 18b are individually connected to the voltage poles of the AC power supply AC without using the connection line 24, the connection relationship becomes easy to understand, but a large number of protective elements such as the fuse F are required. The number of members disposed in C is further increased.

本発明は上記事由に鑑みて為されたものであり、その目的は、複数台を用いる場合の結線作業が容易になるリモートコントロール式回路遮断器を提供することにある。 The present invention has been made in view of the above reasons, and an object of the present invention is to provide a remote control circuit breaker that facilitates connection work when a plurality of units are used.

請求項１の発明は、器体に設けた２極分の電源側接続部および負荷側接続部と、各極の電源側接続部と負荷側接続部との間にそれぞれ形成される２つの主電路にそれぞれ挿入される主接点装置と、主接点装置の閉極時に少なくとも一方の主電路における異常電流の通過を検出し異常電流の通過時に主接点装置を強制的に開極させる接点開閉装置と、少なくとも一方の主電路において主接点装置と直列に接続された副接点装置と、各主電路において主接点装置と負荷側接続部との間から分岐した経路にそれぞれ接続される２個の遠隔制御接続部と、副副接点装置を開閉駆動する遠隔開閉装置とを備え、遠隔開閉装置は、各主電路と各遠隔制御接続部とを含むループ経路内にコイルが挿入され副接点装置を開閉駆動する有極かつ双安定型である電磁石装置と、コイルの一端に接続される共通接点および共通接点と選択的に接続される２つの切換接点を備え接点位置が電磁石装置により切り換えられる切換スイッチと、一方の切換接点にアノードが接続された第１のダイオードおよび他方の切換接点にカソードが接続された第２のダイオードとを備え、第１のダイオードのカソードと第２のダイオードのアノードとは一方の遠隔制御接続部に共通に接続され、両遠隔制御接続部の間に第１のダイオードと第２のダイオードとのうち共通接点が接続されているダイオードに順方向の電流が流れる経路を形成することによりコイルに通電することを特徴とする。 The invention according to claim 1 includes two main power supply side connection portions and load side connection portions for two poles provided on the body, and two main portions formed between the power supply side connection portion and the load side connection portion of each pole. A main contact device that is inserted into each of the electric circuits, and a contact switching device that detects the passage of an abnormal current in at least one main electric circuit when the main contact device is closed and forcibly opens the main contact device when the abnormal current passes. Two remote controls connected respectively to a sub-contact device connected in series with the main contact device in at least one main electric circuit and a path branched from between the main contact device and the load side connection portion in each main electric circuit A remote switching device that opens and closes a connecting portion and a sub- sub contact device. The remote switching device opens and closes the sub-contact device by inserting a coil in a loop path including each main electric circuit and each remote control connection portion. A polarized and bistable electric A stone device, a common contact connected to one end of the coil, a change-over switch having two change-over contacts selectively connected to the common contact, the contact position of which is changed by an electromagnet device, and an anode connected to one of the change-over contacts A first diode and a second diode having a cathode connected to the other switching contact, and the cathode of the first diode and the anode of the second diode are commonly connected to one remote control connection. and characterized by energizing the coil by forming a first diode and a path through which a forward current to the diode which common contact is connected among the second diode between the two remote control connection To do.

従来構成では、主電路に挿入した主接点装置を、異常電流に応答する接点開閉装置と制御信号に応答する遠隔開閉装置とで開閉していたのに対して、本発明では、接点開閉装置が開閉する主接点装置とは別に、遠隔開閉装置が開閉する副接点装置を設け、副接点装置を主接点装置と直列に接続し、さらに、遠隔開閉装置を動作させるのに必要な交流電源を主電路から供給する構成を採用している。この構成によって、遠隔制御接続部には交流電源を接続する必要がなく、２つの遠隔制御接続部の間に電流が流れる経路を形成するだけで遠隔開閉装置を作動させることができる。また、各主電路と各遠隔制御接続部とを接続する経路は、各主電路において主接点装置と負荷側接続部との間から分岐させているから、コイルを含む経路で短絡などが生じたときには接点開閉装置が作動して主接点装置が開極し、ヒューズのような保護素子を別途に設けることなく接点開閉装置と主接点装置によって保護することが可能になる。このように、保護素子の結線が不要であるとともに２つの遠隔制御接続部の間に電流が流れる経路を形成するだけで遠隔開閉装置を作動させることができるから、複数個の器体を並設する際には各器体ごとに２本ずつの接続線を遠隔制御接続部に接続するだけの結線になり、従来構成のような送り配線が不要であって、結線が単純化されてわかりやすく結線作業が容易になる。 In the conventional configuration, the main contact device inserted in the main electric circuit is opened and closed by the contact switch device that responds to the abnormal current and the remote switch device that responds to the control signal. In addition to the main contact device that opens and closes, a sub contact device that opens and closes the remote switch device is provided, the sub contact device is connected in series with the main contact device, and the AC power source necessary to operate the remote switch device is also used as the main power source. The structure which supplies from an electric circuit is adopted. With this configuration, it is not necessary to connect an AC power source to the remote control connection unit, and the remote switchgear can be operated only by forming a path through which current flows between the two remote control connection units. In addition, since the route connecting each main electric circuit and each remote control connection portion is branched from between the main contact device and the load side connection portion in each main electric circuit, a short circuit or the like occurred in the route including the coil. Sometimes, the contact switching device is activated to open the main contact device, and it is possible to protect the contact switching device and the main contact device without providing a separate protective element such as a fuse. As described above, since the connection of the protective element is unnecessary and the remote switching device can be operated only by forming a path for current to flow between the two remote control connection portions, a plurality of devices are arranged in parallel. When connecting, only two connection lines are connected to the remote control connection part for each body, and no feed wiring as in the conventional configuration is required, and the connection is simplified and easy to understand. Wiring work becomes easy.

請求項２の発明では、請求項１の発明において、前記接点開閉装置は前記器体から外部に露出し手動操作により前記主接点装置を開閉させるハンドルを備え、前記副接点装置は少なくとも一方の主電路において主接点装置と負荷側接続部との間に挿入されることを特徴とする。 According to a second aspect of the present invention, in the first aspect of the invention, the contact switching device includes a handle that is exposed to the outside from the body and opens and closes the main contact device by manual operation, and the sub-contact device is at least one main contact device. It is inserted between the main contact device and the load side connection part in the electric circuit.

この構成によれば、副接点装置の電源側に主接点装置が設けられるから、主接点装置の閉極時にのみコイルへの通電が可能になり、ハンドルを手動操作して主接点装置を開極させることにより、電源側接続部と遠隔制御接続部との間の経路を遮断することができる。その結果、遠隔制御他接続部に外部回路を接続する作業に際して感電を防止して安全に作業することができる。 According to this configuration, since the main contact device is provided on the power source side of the sub contact device, it is possible to energize the coil only when the main contact device is closed, and the main contact device is opened by manually operating the handle. By doing so, the path between the power supply side connection section and the remote control connection section can be blocked. As a result, electric shock can be prevented and work can be performed safely when connecting an external circuit to the remote control or other connection unit.

請求項３の発明では、請求項２の発明において、前記副接点装置が挿入されている主電路では前記主接点装置と副接点装置との間から前記遠隔制御接続部に分岐する経路が形成されていることを特徴とする。 According to a third aspect of the present invention, in the second aspect of the present invention, a path branching from between the main contact device and the sub contact device to the remote control connection portion is formed in the main electric circuit in which the sub contact device is inserted. It is characterized by.

この構成によれば、副接点装置が開極した状態でも遠隔開閉装置の電源が確保されているから、副接点装置を開極させる動作だけではなく閉極させる動作も遠隔制御接続部を通して指示することができる。 According to this configuration, since the power of the remote switching device is secured even when the sub-contact device is open, not only the operation of opening the sub-contact device but also the operation of closing the sub-contact device is instructed through the remote control connection unit. be able to.

本発明の構成によれば、遠隔開閉装置を動作させるのに必要な交流電源を主電路から供給する構成を採用しているから、遠隔制御接続部には交流電源を接続する必要がなく、２つの遠隔制御接続部の間に電流が流れる経路を形成するだけで遠隔開閉装置を作動させることができる。また、コイルを含む経路で短絡などが生じたときには接点開閉装置が作動して主接点装置が開極するから、ヒューズのような保護素子を別途に設けることなく接点開閉装置と主接点装置によって保護することが可能になる。すなわち、保護素子の結線が不要であるとともに２つの遠隔制御接続部の間に電流が流れる経路を形成するだけで遠隔開閉装置を作動させることができるから、複数個の器体を並設する際には各器体ごとに２本ずつの接続線を遠隔制御接続部に接続するだけの単純な結線になり、結線作業が容易になるという利点を有する。 According to the configuration of the present invention, a configuration is adopted in which AC power necessary for operating the remote switchgear is supplied from the main electrical circuit, so there is no need to connect AC power to the remote control connection section. The remote switchgear can be activated simply by forming a path for current to flow between the two remote control connections. In addition, when a short circuit occurs in the path including the coil, the contact switching device operates to open the main contact device, so that the contact switching device and the main contact device are protected without providing a separate protective element such as a fuse. It becomes possible to do. That is, since the connection of the protective element is not necessary and the remote switching device can be operated only by forming a path through which current flows between the two remote control connection portions, Has the advantage that the connection work becomes simple by simply connecting two connection lines for each container to the remote control connection part.

以下に説明するリモートコントロール式回路遮断器（リモコンブレーカ）は、少なくとも２極の主電路を有することを前提にしている。つまり、電源側端子（電源側接続部）と負荷側端子（負荷側接続部）との対を２対備え、各対ごとに電源側端子と負荷側端子との間にそれぞれ形成される主電路にそれぞれ主接点装置が挿入される。 The remote control circuit breaker (remote breaker) described below is premised on having a main electric circuit of at least two poles. That is, two pairs of a power supply side terminal (power supply side connection part) and a load side terminal (load side connection part) are provided, and a main electric circuit formed between the power supply side terminal and the load side terminal for each pair. The main contact device is inserted into each.

（実施形態１）
本実施形態は、図１に模式的に示すように、２極のリモコンブレーカであって、電圧極（Ｒ相）用と中性極（Ｎ相）用との２個の電源側端子１１ａ，１１ｂと、各電源側端子１１ａ，１１ｂにそれぞれ主電路Ｌａ，Ｌｂを介して接続される２個の負荷側端子１２ａ，１２ｂとを器体１に備える。 (Embodiment 1)
As schematically shown in FIG. 1, the present embodiment is a two-pole remote control breaker, which includes two power-side terminals 11a for a voltage pole (R phase) and a neutral pole (N phase), The container body 1 includes 11b and two load side terminals 12a and 12b connected to the power supply side terminals 11a and 11b via the main electric paths La and Lb, respectively.

器体１の端部には、帯板状の導電バーＤａ，Ｄｂ，Ｄｃの一部が差し込まれる受け溝１ａ，１ｂ，１ｃが並設される。本実施形態では、３枚の導電バーＤａ，Ｄｂ，Ｄｃは厚み方向に離間して積み重ねられ、かつ平行に配置されているから、各導電バーＤａ，Ｄｂ，Ｄｃをそれぞれ導入できるように３個の受け溝１ａ，１ｂ，１ｃが器体１に設けられている。図示する構成例では、電圧極としてＲ相を用いる例を示しており、電源側端子１１ａ，１１ｂを受け溝１ａ，１ｂに設けているが、電圧極としてＴ相を用いる場合には、受け溝１ｂ，１ｃに電源側端子１１ａ，１１ｂを設ける（受け溝１ｂが電源側端子１１ｂ、受け溝１ｃが電源側端子１１ａになる）。電源側端子１１ａ，１１ｂは導電バーＤａ，Ｄｂ，Ｄｃとの電気的接続が必要な受け溝１ａ，１ｂの中に配設された受けばね１１からなる。受けばね１１は、断面逆Ω字状であって導電バーＤａ，Ｄｂの幅方向の一側部が差し込まれ導電バーＤａ，Ｄｂを厚み方向の両側から挟持する。一方、負荷側端子１２ａ，１２ｂは、電線ないし電線に接続した端子を端子ねじの頭部と端子板との間で挟み込むねじ付き端子を用いるが、板ばねのばね力を利用して電線を保持する速結端子を用いてもよい。 At the end of the container 1, receiving grooves 1a, 1b, 1c into which a part of the strip-like conductive bars Da, Db, Dc are inserted are arranged in parallel. In the present embodiment, the three conductive bars Da, Db, Dc are stacked apart from each other in the thickness direction and arranged in parallel, so that three conductive bars Da, Db, Dc can be introduced, respectively. The receiving grooves 1a, 1b, 1c are provided in the container body 1. In the configuration example shown in the figure, an example in which the R phase is used as the voltage electrode is shown. The power supply terminals 11a and 11b are provided in the receiving grooves 1a and 1b. 1b and 1c are provided with power supply side terminals 11a and 11b (the receiving groove 1b is the power supply side terminal 11b and the receiving groove 1c is the power supply side terminal 11a). The power supply side terminals 11a and 11b are formed of receiving springs 11 disposed in receiving grooves 1a and 1b that need to be electrically connected to the conductive bars Da, Db, and Dc. The receiving spring 11 has an inverted Ω-shaped cross section, and one side of the width direction of the conductive bars Da and Db is inserted to sandwich the conductive bars Da and Db from both sides in the thickness direction. On the other hand, the load-side terminals 12a and 12b use a screw terminal that sandwiches a wire or a terminal connected to the wire between the head of the terminal screw and the terminal plate, but holds the wire using the spring force of the leaf spring. Alternatively, a quick connection terminal may be used.

器体１内において、各主電路Ｌａ，Ｌｂにはそれぞれ主接点装置１３ａ，１３ｂが挿入される。電圧極に接続される主電路Ｌａには、電源側端子１１ａと主接点装置１３ａとの間に、電磁引き外し装置１４ｘおよびバイメタル１４ｙも挿入される。電磁引き外し装置１４ｘおよびバイメタル１４ｙは、主接点装置１３ａ，１３ｂを開閉させる接点開閉装置１４の構成要素であって、短絡電流や過電流のような異常電流に応答して動作し、ばねとリンクとを組合せて構成されたトリップ機構を作動させ、ばね力を用いて主接点装置１３ａ，１３ｂを強制的に開極させる。接点開閉装置１４は、器体１の一面に突出するハンドル１４ｚを備え、ハンドル１４ｚを起倒させる手動操作によりトリップ機構を作動させることなく主接点装置１３ａ，１３ｂを開閉させる。接点開閉装置１４におけるトリップ機構およびハンドル１４ｚの動作は周知であるから詳述しない。 In the container 1, main contact devices 13a and 13b are inserted into the main electric circuits La and Lb, respectively. An electromagnetic trip device 14x and a bimetal 14y are also inserted between the power supply side terminal 11a and the main contact device 13a in the main electric circuit La connected to the voltage electrode. The electromagnetic trip device 14x and the bimetal 14y are components of the contact switching device 14 that opens and closes the main contact devices 13a and 13b. The electromagnetic trip device 14x and the bimetal 14y operate in response to an abnormal current such as a short circuit current or an overcurrent. Is activated, and the main contact devices 13a and 13b are forcibly opened using a spring force. The contact opening / closing device 14 includes a handle 14z protruding from one surface of the container body 1, and opens and closes the main contact devices 13a and 13b without operating a trip mechanism by a manual operation for raising and lowering the handle 14z. The trip mechanism and the operation of the handle 14z in the contact switching device 14 are well known and will not be described in detail.

主電路Ｌａに挿入された主接点装置１３ａと負荷側端子１２ａとの間には副接点装置１５ａを挿入してあり、副接点装置１５ａを開閉することによって電源と負荷との給電経路を入切を可能にしている。つまり、主接点装置１３ａと副接点装置１５ａとは直列接続される。副接点装置１５ａは遠隔開閉装置１６を構成する有極かつ双安定型である電磁石装置（図１には電磁石装置のコイル１６ｘを示している）により駆動される。つまり、従来構成の遠隔開閉装置１６では、器体１に内蔵した切換スイッチ１７の接点位置を切り換えるだけであったが、本実施形態では、遠隔開閉装置１６により副接点装置１５ａの開閉も行う。電磁石装置を構成するコイル１６ｘの一端は切換スイッチ１７の共通接点に接続され、切換スイッチ１７に設けた２つの切換接点の一方にはダイオードＤ１のカソードが接続され他方にはダイオードＤ２のアノードが接続される。また、ダイオードＤ１のアノードとダイオードＤ２のカソードとは遠隔制御端子（遠隔制御接続部）１８ａに接続される。コイル１６ｘの他端は主電路Ｌｂにおいて主接点装置１３ｂと負荷側端子１２ｂとの間に接続される。また、主電路Ｌａにおいて主接点装置１３ａと副接点装置１５ａとの間は遠隔制御端子１８ｂに接続される。 A sub contact device 15a is inserted between the main contact device 13a inserted in the main electric circuit La and the load side terminal 12a, and the power supply path between the power source and the load is turned on and off by opening and closing the sub contact device 15a. Is possible. That is, the main contact device 13a and the sub contact device 15a are connected in series. The sub-contact device 15a is driven by a polar and bistable electromagnet device (a coil 16x of the electromagnet device is shown in FIG. 1) constituting the remote switching device 16. That is, in the remote switching device 16 having the conventional configuration, the contact position of the changeover switch 17 built in the container 1 is only switched. In this embodiment, the remote switching device 16 also opens and closes the sub-contact device 15a. One end of the coil 16x constituting the electromagnet device is connected to a common contact of the changeover switch 17, one of the two changeover contacts provided on the changeover switch 17 is connected to the cathode of the diode D1, and the other is connected to the anode of the diode D2. Is done. The anode of the diode D1 and the cathode of the diode D2 are connected to a remote control terminal (remote control connection unit) 18a. The other end of the coil 16x is connected between the main contact device 13b and the load side terminal 12b in the main electric circuit Lb. Further, in the main electric circuit La, the main contact device 13a and the sub contact device 15a are connected to the remote control terminal 18b.

すなわち、各主電路Ｌａ，Ｌｂにおいて主接点装置１３ａ，１３ｂと負荷側端子１２ａ，１２ｂとの間から分岐した経路にそれぞれ接続される２個の遠隔制御端子１８ａ，１８ｂが設けられる。また、各主電路Ｌａ，Ｌｂと各遠隔制御端子１８ａ，１８ｂとを含むループ経路内に遠隔開閉装置１６のコイル１６ｘが挿入される。 That is, two remote control terminals 18a and 18b connected to paths branched from the main contact devices 13a and 13b and the load side terminals 12a and 12b in the main electric circuits La and Lb are provided. Further, the coil 16x of the remote switching device 16 is inserted into a loop path including the main electric circuits La and Lb and the remote control terminals 18a and 18b.

上述のように、電圧極に接続される主電路Ｌａと中性極に接続される主電路Ｌｂとの一方に遠隔開閉装置１６のコイル１６ｘを介して遠隔制御端子１８ａを接続し他方に遠隔制御端子１８ｂを接続しているから、コイル１６ｘに通電するための電源を主電路Ｌａ，Ｌｂから確保することができる。 As described above, the remote control terminal 18a is connected to one of the main electric circuit La connected to the voltage electrode and the main electric circuit Lb connected to the neutral electrode via the coil 16x of the remote switching device 16, and the other is controlled remotely. Since the terminal 18b is connected, a power source for energizing the coil 16x can be secured from the main electric paths La and Lb.

たとえば、切換スイッチ１７が図１に示すようにダイオードＤ１を選択している状態において、主接点装置１３ａ，１３ｂが閉極しているものとし、遠隔制御端子１８ｂから遠隔制御端子１８ａに向かう向きにのみ電流が流れるように両遠隔制御端子１８ａ，１８ｂの間にダイオードを挿入して電流の向きを規定すると、主電路Ｌａ−遠隔制御端子１８ｂ−遠隔制御端子１８ａ−ダイオードＤ１−コイル１６ｘ−主電路Ｌｂの経路で電流が流れることにより、遠隔開閉装置１６を作動させることができる。ここで、図１のようにダイオードＤ１を選択しているときに副接点装置１５ａが開極している場合には、上述のようにしてコイル１６ｘに通電することで副接点装置１５ａを閉極させることができる。また、切換スイッチ１７ではダイオードＤ２を選択するから、コイル１６ｘに通電されなくなるが、電磁石装置が有極かつ双安定型であるから副接点装置１５ａは閉極した状態に保たれる。 For example, when the changeover switch 17 selects the diode D1 as shown in FIG. 1, it is assumed that the main contact devices 13a and 13b are closed, and the direction from the remote control terminal 18b to the remote control terminal 18a is set. When a diode is inserted between the remote control terminals 18a and 18b so that only current flows, the direction of the current is defined. Main electric circuit La-remote control terminal 18b-remote control terminal 18a-diode D1-coil 16x-main electric circuit The remote switching device 16 can be operated by the current flowing through the path Lb. Here, when the secondary contact device 15a is open when the diode D1 is selected as shown in FIG. 1, the secondary contact device 15a is closed by energizing the coil 16x as described above. Can be made. Since the changeover switch 17 selects the diode D2, the coil 16x is not energized, but the sub-contact device 15a is kept closed because the electromagnet device is polarized and bistable.

切換スイッチ１７でダイオードＤ２を選択している状態において、遠隔制御端子１８ａから遠隔制御端子１８ｂに向かう向きにのみ電流が流れるように両遠隔制御端子１８ａ，１８ｂの間にダイオードを挿入して電流の向きを規定すると、主電路Ｌｂ−コイル１６ｘ−ダイオードＤ２−遠隔制御端子１８ａ−遠隔制御端子１８ｂ−主電路Ｌａの経路で電流が流れることにより、遠隔開閉装置１６を作動させ、副接点装置１５ａを開極させることができる。また、このとき、切換スイッチ１７はダイオードＤ１を選択した状態に戻る。 When the diode D2 is selected by the changeover switch 17, a diode is inserted between the remote control terminals 18a and 18b so that current flows only in the direction from the remote control terminal 18a to the remote control terminal 18b. When the direction is defined, current flows through the path of the main electric circuit Lb-coil 16x-diode D2-remote control terminal 18a-remote control terminal 18b-main electric circuit La, thereby operating the remote switching device 16 and the sub-contact device 15a. It can be opened. At this time, the changeover switch 17 returns to the state in which the diode D1 is selected.

要するに、両遠隔制御端子１８ａ，１８ｂの間には、２つの切換接点を有する操作スイッチＳＷと、操作スイッチＳＷの各切換接点にそれぞれ接続された２個のダイオードＤ３，Ｄ４とからなる操作回路２１を接続するだけであって、交流電源ＡＣとの接続は不要になる。ダイオードＤ３はカソードが遠隔制御端子１８ａに接続され、ダイオードＤ４はアノードが遠隔制御端子１８ａに接続される。また、遠隔制御端子１８ｂには操作スイッチＳＷの共通接点が接続される。操作スイッチＳＷを操作することにより接点位置を切り換えると、遠隔制御端子１８ａ，１８ｂの間の電流の通過方向をダイオードＤ３，Ｄ４によって規定することができ、上述した動作が可能になる。 In short, between the remote control terminals 18a and 18b, an operation circuit 21 comprising an operation switch SW having two switching contacts and two diodes D3 and D4 respectively connected to the switching contacts of the operation switch SW. Is connected, and connection with the AC power supply AC is not required. The diode D3 has a cathode connected to the remote control terminal 18a, and the diode D4 has an anode connected to the remote control terminal 18a. Further, a common contact of the operation switch SW is connected to the remote control terminal 18b. When the contact position is switched by operating the operation switch SW, the current passing direction between the remote control terminals 18a and 18b can be defined by the diodes D3 and D4, and the above-described operation becomes possible.

上述の動作から明らかなように、コイル１６ｘに通電するための電源は、主接点装置１３ａ，１３ｂと副接点装置１５ａとの間から得ているから、副接点装置１５ａの開閉にかかわらず主接点装置１３ａ，１３ｂが閉極していれば確保することができる。また、コイル１６ｘに通電する経路において短絡のような異常が生じたときには、電源側端子１１ａ，１１ｂと主接点装置１３ａ，１３ｂとの間に挿入された電磁引き外し装置１４ｘとバイメタル１４ｙとのいずれかが応答して接点開閉装置１４のトリップ機構を作動させるから、主接点装置１３ａ，１３ｂが開極することにより異常電流に対する保護がなされる。つまり、別途にヒューズのような保護素子を設けることなく、ブレーカの保護機能を流用してコイル１６ｘの給電経路における保護を行うことができる。また、ブレーカの保護機能を流用しているから、ハンドル１４ｚにより主接点装置１３ａ，１３ｂを開極させておけば、遠隔制御端子１８ａ，１８ｂは電源から切り離され、遠隔制御端子１８ａ，１８ｂへの結線作業を安全に行うことができる。 As is clear from the above-described operation, the power source for energizing the coil 16x is obtained between the main contact devices 13a and 13b and the sub contact device 15a, so that the main contact regardless of whether the sub contact device 15a is opened or closed. This can be ensured if the devices 13a and 13b are closed. Further, when an abnormality such as a short circuit occurs in the path through which the coil 16x is energized, any of the electromagnetic trip device 14x and the bimetal 14y inserted between the power supply side terminals 11a and 11b and the main contact devices 13a and 13b. Responds to actuate the trip mechanism of the contact switching device 14, so that the main contact devices 13a and 13b are opened to protect against an abnormal current. That is, it is possible to protect the coil 16x in the power feeding path by diverting the protection function of the breaker without separately providing a protective element such as a fuse. Further, since the breaker protection function is used, if the main contact devices 13a and 13b are opened by the handle 14z, the remote control terminals 18a and 18b are disconnected from the power source and connected to the remote control terminals 18a and 18b. Connection work can be performed safely.

図２は上述した構成のリモコンブレーカＢを分電盤Ｃに収納する場合の接続例を示している。図示例は単相三線式であって、分電盤Ｃには主幹ブレーカ（図示せず）に接続された帯板状の３本の導電バーＤａ，Ｄｂ，Ｄｃが配置される。各リモコンブレーカＢの電源側端子１１ｂは中性極（Ｎ相）の導電バーＤｂに接続され、残りの２つの電圧極（Ｔ相、Ｒ相）の導電バーＤａ，Ｄｃの一方は電源側端子１１ａ（導電バーＤａは受け溝１ａの電源側端子１１ａ、導電バーＤｃは受け溝１ｃの電源側端子１１ａ）に接続される。各リモコンブレーカＢの遠隔制御端子１８ａ，１８ｂは、それぞれ接続線２２を用いて端子台２０に設けた端子２０ａ，２０ｂに接続される。端子台２０に設けた各端子２０ａ，２０ｂは２個ずつ対であって、端子２０ａは各リモコンブレーカＢの遠隔制御端子１８ａに接続され、端子２０ｂは各リモコンブレーカＢの遠隔制御端子１８ｂに接続される。また、端子２０ａ，２０ｂの対ごとに操作回路２１が接続される。 FIG. 2 shows an example of connection when the remote control breaker B having the above-described configuration is accommodated in the distribution board C. The illustrated example is a single-phase three-wire system, and the distribution board C is provided with three strip-like conductive bars Da, Db, Dc connected to a main breaker (not shown). The power supply side terminal 11b of each remote control breaker B is connected to a neutral pole (N phase) conductive bar Db, and one of the remaining two voltage poles (T phase, R phase) conductive bars Da and Dc is a power supply side terminal. 11a (conductive bar Da is connected to power supply side terminal 11a of receiving groove 1a, and conductive bar Dc is connected to power supply side terminal 11a of receiving groove 1c). Remote control terminals 18a and 18b of each remote control breaker B are connected to terminals 20a and 20b provided on the terminal block 20 using connection lines 22, respectively. Each terminal 20a, 20b provided on the terminal block 20 is a pair of two, the terminal 20a is connected to the remote control terminal 18a of each remote control breaker B, and the terminal 20b is connected to the remote control terminal 18b of each remote control breaker B. Is done. An operation circuit 21 is connected to each pair of terminals 20a and 20b.

図２から明らかなように、各リモコンブレーカＢごとに遠隔制御端子１８ａ，１８ｂと端子台２０の端子２０ａ，２０ｂとの間を２本ずつの接続線２２で接続するだけでよく、また端子台２０において対になる端子２０ａ，２０ｂの間にそれぞれ操作回路２１を接続するだけであるから、接続関係が単純でわかりやすく結線作業が容易になる。ここで、図１に示した例では電圧極としてＲ相を用いているが、図２から明らかなように、電圧極としてＴ相を用いることもできるのはもちろんのことである。また、電源側端子１１ａ，１１ｂ、負荷側端子１２ａ，１２ｂ、遠隔制御端子１８ａ，１８ｂとしては、他の形式の接続部を採用してもよい。 As is clear from FIG. 2, it is only necessary to connect the remote control terminals 18a and 18b and the terminals 20a and 20b of the terminal block 20 with two connection lines 22 for each remote control breaker B. Since only the operation circuit 21 is connected between the paired terminals 20a and 20b in FIG. 20, the connection relationship is simple, easy to understand, and the connection work is facilitated. Here, although the R phase is used as the voltage electrode in the example shown in FIG. 1, it is obvious that the T phase can also be used as the voltage electrode as apparent from FIG. 2. Moreover, you may employ | adopt other types of connection parts as the power supply side terminals 11a and 11b, the load side terminals 12a and 12b, and the remote control terminals 18a and 18b.

（実施形態２）
実施形態１の構成では、２つの主電路Ｌａ，Ｌｂのうち一方の主電路Ｌａにのみ副接点装置１５ａを挿入する例を示したが、本実施形態は、図３に示すように、２つの主電路Ｌａ，Ｌｂの両方にそれぞれ副接点装置１５ａ，１５ｂを挿入している。各副接点装置１５ａ，１５ｂは、それぞれ主接点装置１３ａ，１３ｂと負荷側端子１２ａ，１２ｂとの間に挿入され、コイル１６ｘを備える１つの電磁石装置により開閉駆動される。また、実施形態１と同様に、主電路Ｌａにおいて主接点装置１３ａと副接点装置１５ａとの間に遠隔制御端子１８ａが接続される。コイル１６ｘの一端は、主電路Ｌｂにおいて主接点装置１３ｂと副接点装置１５ｂとの間に接続される。要するに、副接点装置１５ａ，１５ｂを含む主電路Ｌａ，Ｌｂでは、主接点装置１３ａ，１３ｂと副接点装置１５ａ，１５ｂとの間から遠隔制御端子１８ａ，１８ｂに分岐し、主接点装置１３ａ，１３ｂが閉極しているときにのみコイル１６ｘへの通電が可能になる。 (Embodiment 2)
In the configuration of the first embodiment, the example in which the sub contact device 15a is inserted only into one of the two main electric circuits La and Lb is shown. However, in the present embodiment, as shown in FIG. Sub-contact devices 15a and 15b are inserted into both main electric circuits La and Lb, respectively. The sub contact devices 15a and 15b are inserted between the main contact devices 13a and 13b and the load side terminals 12a and 12b, respectively, and are driven to open and close by one electromagnet device including the coil 16x. Similarly to the first embodiment, a remote control terminal 18a is connected between the main contact device 13a and the sub contact device 15a in the main electric circuit La. One end of the coil 16x is connected between the main contact device 13b and the sub contact device 15b in the main electric circuit Lb. In short, in the main electric circuits La and Lb including the sub contact devices 15a and 15b, the main contact devices 13a and 13b branch from the main contact devices 13a and 13b and the sub contact devices 15a and 15b to the remote control terminals 18a and 18b. The coil 16x can be energized only when is closed.

本実施形態の構成では、負荷への給電経路の往路と復路となる２つの主電路Ｌａ，Ｌｂの両方に主接点装置１３ａ，１３ｂが挿入されるだけではなく、副接点装置１５ａ，１５ｂも挿入されるのであって、実施形態１がいわゆる往路と復路との一方のみに副接点装置１５ａを挿入した片切り型であるのに対して、本実施形態は両切り型になる。他の構成および使用時の接続関係は実施形態１と同様である。 In the configuration of the present embodiment, not only the main contact devices 13a and 13b are inserted into both the two main electric circuits La and Lb serving as the forward path and the return path of the power supply path to the load, but also the sub contact devices 15a and 15b are inserted. Therefore, the first embodiment is a one-sided type in which the sub-contact device 15a is inserted only in one of the so-called forward path and the backward path, whereas the present embodiment is a double-cut type. Other configurations and connection relationships during use are the same as those in the first embodiment.

（実施形態３）
実施形態１、２は、中性極（Ｎ相）と一方の電圧極（Ｒ相またはＴ相）とに接続して用いる構成であるのに対して、本実施形態では、図４に示すように、実施形態２の構成に代えて、２つの電圧極に接続して使用する構成を採用している。つまり、実施形態１、２は１００Ｖ用であり、本実施形態は２００Ｖ用に相当する。したがって、電源側端子１１ａ，１１ｂは電圧極の導電バーＤａ，Ｄｃに接続できるように、３個の受け溝１ａ，１ｂ，１ｃのうち上下の受け溝１ａ，１ｃに受けばね１１を配設している。また、接点開閉装置１４は各主電路Ｌａ，Ｌｂごとに電磁引き外し装置１４ｘとバイメタル１４ｙとを挿入してある。したがって、異常電流に対して２個ずつの電磁引き外し装置１４ｘとバイメタル１４ｙとが応答することにより、主接点装置１３ａ，１３ｂを強制的に開極させる際の駆動力が大きくなる。他の構成および動作は実施形態２と同様である。 (Embodiment 3)
The first and second embodiments are configured to be connected to a neutral electrode (N phase) and one voltage electrode (R phase or T phase), whereas in this embodiment, as shown in FIG. In addition, instead of the configuration of the second embodiment, a configuration that is used by connecting to two voltage electrodes is adopted. That is, the first and second embodiments are for 100V, and the present embodiment is for 200V. Therefore, the receiving springs 11 are arranged in the upper and lower receiving grooves 1a, 1c of the three receiving grooves 1a, 1b, 1c so that the power supply side terminals 11a, 11b can be connected to the conductive bars Da, Dc of the voltage electrode. ing. Further, the contact switching device 14 has an electromagnetic trip device 14x and a bimetal 14y inserted for each main electric circuit La, Lb. Accordingly, when the electromagnetic tripping device 14x and the bimetal 14y each respond to the abnormal current, the driving force for forcibly opening the main contact devices 13a and 13b increases. Other configurations and operations are the same as those in the second embodiment.

なお、実施形態１、２、３のいずれかの構成において電源側端子と負荷側端子と主接点装置とを追加すれば、３極以上のリモコンブレーカを構成することができ、３極以上のリモコンブレーカを構成した場合でも本発明の技術思想は適用可能である。 In addition, if a power supply side terminal, a load side terminal, and a main contact device are added in any of the configurations of the first, second, and third embodiments, a three-pole or more remote control breaker can be configured, and a three-pole or more remote controller The technical idea of the present invention can be applied even when a breaker is configured.

本発明の実施形態１を示す概略構成図である。It is a schematic block diagram which shows Embodiment 1 of this invention. 同上の使用例を示す回路図である。It is a circuit diagram which shows the usage example same as the above. 本発明の実施形態２を示す概略構成図である。It is a schematic block diagram which shows Embodiment 2 of this invention. 本発明の実施形態３を示す概略構成図である。It is a schematic block diagram which shows Embodiment 3 of this invention. 従来構成を示す要部回路図である。It is a principal part circuit diagram which shows a conventional structure. 同上の使用例を示す回路図である。It is a circuit diagram which shows the usage example same as the above.

Explanation of symbols

１器体
１１ａ，１１ｂ電源側端子（電源側接続部）
１２ａ，１２ｂ負荷側端子（負荷側接続部）
１３ａ，１３ｂ主接点装置
１４接点開閉装置
１４ｚハンドル
１５ａ、１５ｂ副接点装置
１６遠隔開閉装置
１６ｘコイル
１８ａ，１８ｂ遠隔制御端子（遠隔制御接続部）
Ｌａ，Ｌｂ主電路 1 body 11a, 11b power supply side terminal (power supply side connection part)
12a, 12b Load side terminal (load side connection)
13a, 13b Main contact device 14 Contact switch device 14z Handle 15a, 15b Sub contact device 16 Remote switch device 16x Coil 18a, 18b Remote control terminal (remote control connection part)
La, Lb Main electric circuit

Claims

Main poles inserted respectively into two main electric circuits formed between the power supply side connection portion and the load side connection portion for two poles provided on the body and between the power supply side connection portion and the load side connection portion of each pole A contact device, a contact switching device that detects the passage of an abnormal current in at least one main circuit when the main contact device is closed, and forcibly opens the main contact device when the abnormal current passes; and at least one main circuit A sub-contact device connected in series with the main contact device, two remote control connection portions respectively connected to a path branched from between the main contact device and the load side connection portion in each main electric circuit, and the sub- contact device The remote switching device is a polarized and bistable type in which a coil is inserted in a loop path including each main electric circuit and each remote control connection part to open and close the sub-contact device. An electromagnetic device and a coil A switching switch having a common contact connected to the end and two switching contacts selectively connected to the common contact, the contact position of which is switched by an electromagnet device, a first diode having an anode connected to one switching contact; A second diode having a cathode connected to the other switching contact, the cathode of the first diode and the anode of the second diode are commonly connected to one remote control connection , and both remote control connections A remote control type circuit breaker characterized in that a coil is energized by forming a path through which a forward current flows in a diode having a common contact connected between the first diode and the second diode. vessel.

The contact opening / closing device includes a handle that is exposed to the outside from the body and manually opens and closes the main contact device, and the sub-contact device is disposed between the main contact device and the load side connection portion in at least one main electric circuit. The remote control circuit breaker according to claim 1, wherein the circuit breaker is inserted.

3. The remote control according to claim 2, wherein a path branching from between the main contact device and the sub contact device to the remote control connection portion is formed in the main electric circuit in which the sub contact device is inserted. Circuit breaker.