WO2020059032A1 - Device for opening/closing operating rod insertion opening of switch gear, and switch gear in which said device is used - Google Patents

Device for opening/closing operating rod insertion opening of switch gear, and switch gear in which said device is used Download PDF

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Publication number
WO2020059032A1
WO2020059032A1 PCT/JP2018/034544 JP2018034544W WO2020059032A1 WO 2020059032 A1 WO2020059032 A1 WO 2020059032A1 JP 2018034544 W JP2018034544 W JP 2018034544W WO 2020059032 A1 WO2020059032 A1 WO 2020059032A1
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WO
WIPO (PCT)
Prior art keywords
rod insertion
opening
iron plate
operation rod
shaped iron
Prior art date
Application number
PCT/JP2018/034544
Other languages
French (fr)
Japanese (ja)
Inventor
達哉 ▲濱▼田
オソン パク
透 木村
Original Assignee
三菱電機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2020547508A priority Critical patent/JP6949241B2/en
Priority to PCT/JP2018/034544 priority patent/WO2020059032A1/en
Priority to DE112018007989.9T priority patent/DE112018007989T5/en
Publication of WO2020059032A1 publication Critical patent/WO2020059032A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/14—Shutters or guards for preventing access to contacts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00—Switchgear having carriage withdrawable for isolation
    • H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal

Definitions

  • the present application relates to a switchgear for opening and closing an operation rod insertion opening of a switchgear and a switchgear using the same.
  • the switchgear is a power distribution facility in which high-voltage bus wiring, a circuit breaker, a disconnecting switch, and the like are integrated and housed in a grounded metal housing to improve electrical safety.
  • the switchgear contacts of the switchgear cannot be opened and closed by electric operation due to the loss of control power to the breaker and a short circuit accident while the switchgear breaker is in operation, It is necessary to operate the trip button installed in front of the breaker in order to forcibly release the contacts.
  • a switch gear housing such as a front door is provided with an operation rod insertion port which is a small opening into which an operation rod is inserted for operating a trip button of the circuit breaker.
  • This switchgear has an operating rod insertion port with a shutter that is closed when the breaker is operating normally, and when it is necessary to operate the breaker with the operating rod, pull the shutter in a certain direction.
  • the operation rod insertion port can be opened.
  • the spring attached to the shutter returns to the original position, and the operation rod insertion port can be closed, preventing leakage of hot gas and improving safety when a short circuit accident occurs inside.
  • the present application has been made to solve the above-described problem, and can open and close the operation rod insertion port of the switchgear without using a spring. It is an object of the present invention to prevent the opening from being left open and prevent damage due to hot gas leakage.
  • the opening / closing device for the operation rod insertion opening of the switchgear of the present application opens and closes the operation rod insertion opening formed in the switchgear housing surface with an L-shaped vertical portion to insert the operation rod for operating the circuit breaker inside the switchgear.
  • An L-shaped iron plate, and a slide plate that engages with an L-shaped horizontal portion of the L-shaped iron plate and rotates the L-shaped iron plate by operating up and down, and by raising the slide plate,
  • the L-shaped iron plate is rotated to open the operation rod insertion opening closed by the vertical portion of the L-shape, and the L-shaped iron plate is rotated in the opposite direction as the slide plate descends due to its own weight. Is closed by an L-shaped vertical portion of an L-shaped iron plate.
  • the opening / closing device for the operation rod insertion opening of the switch gear of the present application can open and close the operation rod insertion opening without using a spring, and the operation rod insertion opening remains open due to the breakage of the spring. It is possible to prevent damage due to hot gas leakage.
  • FIG. 2 is a side sectional view of the switchgear according to the first embodiment.
  • FIG. 3 is a perspective view of a front door (front surface) having the opening / closing device according to the first embodiment.
  • FIG. 3 is an enlarged perspective view of the opening and closing device of FIG. 2.
  • FIG. 3 is a perspective view of a front door (rear surface) having the opening / closing device according to the first embodiment.
  • FIG. 5 is an enlarged perspective view of the opening / closing device of FIG. 4.
  • FIG. 1 is a side sectional view of the switchgear 100, and shows the arrangement of the operation rod insertion port 2 and the opening / closing device 6 in the switchgear 100.
  • FIG. 1 is a side sectional view of the switchgear 100, and shows the arrangement of the operation rod insertion port 2 and the opening / closing device 6 in the switchgear 100.
  • the left side of the figure corresponds to the front side of the switchgear 100, and the right side corresponds to the back side.
  • an external cable 17, a zero-phase current device 18, a voltmeter 19, and an ammeter 20 are arranged, and the bus 16 is arranged at an intermediate position.
  • a circuit breaker 15 is arranged inside the front door 1 of the switchgear 100, and a trip button 14 for interrupting current in an emergency is provided on the front of the circuit breaker 15. Further, an operation rod insertion port 2 is formed in the front door 1, and an operation rod 13 is inserted through the operation rod insertion port 2. In an emergency such as a short circuit accident, the trip button 14 on the front of the circuit breaker 15 is operated by using the operation rod 13 to forcibly open the contacts in the circuit breaker 15.
  • the opening / closing device 6 for the operation rod insertion port 2 is attached to the inside of the front door 1 in correspondence with the operation rod insertion port 2 in the drawing, and the opening / closing device 6 used in the present embodiment will be described below. Will be described in detail.
  • the operation rod insertion port 2 for inserting the operation rod 13 from outside the housing of the switchgear 100 is formed in the front door 1 of the switchgear 100.
  • the present invention is not limited to this, and the operation rod insertion port 2 can be formed in any of the door portion of the housing that covers the outside of the switchgear 100 and other portions.
  • FIGS. 3 and 5 show enlarged views of the opening / closing device portion of FIGS.
  • the operation rod insertion port 2 is formed substantially at the center of the front door 1, and the opening / closing device 6 is disposed on the back of the front door 1. Therefore, in the enlarged view shown in FIG. 3, since the opening / closing device 6 is observed through the front door 1, it is indicated by a broken line. However, since the handle 5 for operating the opening / closing device 6 projects from the back surface of the front door 1 to the front surface, it is indicated by a solid line. Although the front door 1 itself is not shown in FIG. 3, a handle extraction hole 9 formed in the front door 1 to make the handle 5 protrude from the front door 1 for description of the opening / closing device 6; The operation rod insertion port 2 formed in the front door 1 is shown using a solid line.
  • FIG. 5 is an enlarged view of the opening / closing device 6 formed on the back surface of the front door 1 shown in FIG. 4, and the opening / closing device 6 includes the holding plate 10 and the front door 1 (the description is omitted as in FIG. 3). Is formed between.
  • the opening / closing device 6 includes an L-shaped iron plate 3 serving as a shutter for opening and closing the operation rod insertion opening 2, and is linked to the L-shaped iron plate 3. It mainly comprises a slide plate 4 for rotating the iron-shaped iron plate 3.
  • the L-shaped iron plate 3 includes an L-shaped vertical portion (hereinafter, a vertical portion) serving as a shutter for closing the operation rod insertion opening 2 and an L-shaped horizontal portion (hereinafter, a horizontal portion) linked to the slide plate 4.
  • the L-shaped iron plate 3 is formed so as to rotate around a rotation shaft inserted into a through hole formed in an L-shaped bent portion of the L-shaped iron plate 3.
  • a handle 5 is fixed to one surface of the slide plate 4 with rivets as shown in FIG. On the other surface, a pin 12 corresponding to the guide hole 11 formed in the holding plate 10 is formed.
  • the curved arrow 7 indicates the rotation direction in which the L-shaped iron plate 3 operates
  • the straight arrow 8 indicates the vertical direction in which the slide plate 4 operates.
  • the L-shaped iron plate 3 is arranged so as to rotate around a rotation axis passing through the L-shaped bent portion, and the slide plate 4 holds the slide plate 4. It is arranged so as to operate in the up and down direction using a projection formed on the holding plate 10 as a guide.
  • FIGS. 3 and 5 show the operation rod insertion port 2 in a closed state, and the operation rod insertion port 2 is closed by a vertical portion of the L-shaped iron plate 3.
  • the horizontal portion of the L-shaped iron plate 3 forms a link structure by engaging with the slide plate 4.
  • the horizontal portion of the L-shaped iron plate 3 also moves in the vertical direction in accordance with the vertical movement of the slide plate 4, and as a result, the L-shaped iron plate 3 rotates in the direction indicated by the curved arrow 7 in the figure. .
  • the handle 5 protruding from the front door 1 is operated upward.
  • the slide plate 4 moves upward in the vertical direction indicated by the straight arrow 8 in the figure, links to the slide plate 4, and the horizontal portion of the L-shaped iron plate 3 also moves upward.
  • the L-shaped iron plate 3 rotates clockwise when viewed from the front, the vertical portion of the L-shaped iron plate 3 closing the operation rod insertion port 2 moves, and the operation rod insertion port 2 is opened.
  • the trip button 14 of the circuit breaker 15 can be operated.
  • the size of the handle extraction hole 9 formed for operating the handle 5 from the front door 1 and the holding plate 10 for guiding the pins attached to the slide plate 4 are provided.
  • the movable distance of the slide plate 4 can be changed, and as a result, the angle of rotation of the L-shaped iron plate 3 can be adjusted.
  • the slide plate 4 After operating the trip button 14 and pulling out the operation rod 13 from the operation rod insertion slot 2, when the handle 5 or the like is not held, the slide plate 4 is moved downward by the weight of the slide plate 4 and the handle 5.
  • the L-shaped iron plate 3 that moves and is simultaneously linked to the slide plate 4 rotates counterclockwise in the opposite direction, that is, rotates counterclockwise when viewed from the front, and is operated by the vertical portion of the L-shaped iron plate 3. Is closed.
  • the operation rod insertion port 2 is closed by the weight of the slide plate 4 or the like, so that an operation error such as forgetting to close the operation rod insertion port 2 can be avoided. This does not occur, and damage to peripheral devices due to leakage of hot gas generated inside when a short circuit occurs in the circuit breaker 15 or the like can be prevented.
  • the cost of the members can be reduced compared to a conventional opening / closing device that closes with a spring or the like like the operation rod insertion opening 2, and furthermore, there is no hot gas leakage due to the deterioration of the spring and the like, and an inexpensive and safe switching device. 6 can be obtained.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Patch Boards (AREA)

Abstract

The purpose of the present invention is to obtain a device for opening/closing an operating rod insertion opening of a switch gear, said device preventing an operating rod insertion opening from remaining open. The present invention is characterized in comprising: an L-shaped iron plate (3) that opens/closes an operating rod insertion opening (2) using an L-shaped vertical portion, the operating rod insertion opening (2) being formed in the surface of a switch gear (100) casing for the purpose of inserting an operating rod (13) that operates a circuit breaker (15) inside the switch gear (100); and a slide plate (4) that engages with a horizontal portion of the L shape in the L-shaped iron plate (3) and causes the L-shaped iron plate (3) to rotate by moving upward and downward; the present invention also being characterized in that rotating the L-shaped iron plate (3) by causing the slide plate (4) to move upward opens the operating rod insertion opening (2) that was closed by the horizontal portion of the L shape, and rotating the L-shaped iron plate (3) in the opposite direction along with the descent of the slide plate (4) under its own weight closes the operating rod insertion opening (2) using the vertical portion of the L shape of the L-shaped iron plate (3).

Description

スイッチギヤの操作ロッド挿入口の開閉装置及びこれを用いたスイッチギヤSwitchgear for opening and closing operation rod insertion port of switchgear and switchgear using the same
　本願は、スイッチギヤの操作ロッド挿入口の開閉装置及びこれを用いたスイッチギヤに関するものである。 The present application relates to a switchgear for opening and closing an operation rod insertion opening of a switchgear and a switchgear using the same.
　スイッチギヤは、高電圧の母線配線、遮断器、断路器等を一体として、接地された金属製の筐体内に収納し、電気的な安全性を高めた配電用設備である。
　スイッチギヤの遮断器が運転状態にある際に、遮断器までの制御電源の喪失及び短絡事故等が原因となって、遮断器の接点を電動操作により開閉することができなくなった場合、遮断器の接点を強制的に解放させるため、遮断器正面に設置されたトリップボタンを操作することが必要となる。 The switchgear is a power distribution facility in which high-voltage bus wiring, a circuit breaker, a disconnecting switch, and the like are integrated and housed in a grounded metal housing to improve electrical safety.
When the switchgear contacts of the switchgear cannot be opened and closed by electric operation due to the loss of control power to the breaker and a short circuit accident while the switchgear breaker is in operation, It is necessary to operate the trip button installed in front of the breaker in order to forcibly release the contacts.
　しかし、遮断器が運転状態にある場合、機械的なインターロック機構が働き、遮断器を収納するスイッチギヤの遮断器室の前面扉は一般に開放することはできない。そこで、前面扉等のスイッチギヤ筐体には、遮断器のトリップボタンを操作するために操作ロッドを挿入する小さな開口である操作ロッド挿入口が設けられている。 However, when the breaker is in operation, the mechanical interlock mechanism works and the front door of the breaker room of the switchgear that houses the breaker cannot be opened in general. Therefore, a switch gear housing such as a front door is provided with an operation rod insertion port which is a small opening into which an operation rod is inserted for operating a trip button of the circuit breaker.
　このスイッチギヤの操作ロッド挿入口には、遮断器が正常動作を行っているときには閉口したシャッターが備えられており、操作ロッドで遮断器を操作する必要があるときには、シャッターを一定方向に引くことで、操作ロッド挿入口を開口することができる。引くことを中止するとシャッターに取付けられたバネにより元に戻り、操作ロッド挿入口を閉口することができ、内部で短絡事故が生じた場合など、ホットガスの漏れを防止し、安全性を高めることができる（特許文献１参照）。 This switchgear has an operating rod insertion port with a shutter that is closed when the breaker is operating normally, and when it is necessary to operate the breaker with the operating rod, pull the shutter in a certain direction. Thus, the operation rod insertion port can be opened. When pulling is stopped, the spring attached to the shutter returns to the original position, and the operation rod insertion port can be closed, preventing leakage of hot gas and improving safety when a short circuit accident occurs inside. (See Patent Document 1).
特開平９－１５４２０８号公報JP-A-9-154208
　このようなバネを用いたスイッチギヤの操作ロッド挿入口の開閉装置の場合、バネ自体の部品コスト、バネの取付の生産コストを要し、さらに、経年の劣化によりバネが破損等した場合、操作ロッド挿入口が開放されたままとなり、短絡事故によりスイッチギヤ内で生じた内部のホットガスがスイッチギヤ外部に漏れ、周辺装置に損害を与えるという問題がある。 In the case of the opening / closing device for the operation rod insertion opening of the switchgear using such a spring, the cost of parts for the spring itself and the production cost of mounting the spring are required. There is a problem in that the rod insertion port remains open, and hot gas generated inside the switchgear due to a short circuit accident leaks out of the switchgear and damages peripheral devices.
　本願は、上記のような課題を解決するためになされたもので、スイッチギヤの操作ロッド挿入口の開閉を、バネを用いることなく行うことができるもので、バネの破損により、操作ロッド挿入口が開口状態のままとなることを防止し、ホットガス漏れによる損害を防止することを目的とする。 The present application has been made to solve the above-described problem, and can open and close the operation rod insertion port of the switchgear without using a spring. It is an object of the present invention to prevent the opening from being left open and prevent damage due to hot gas leakage.
　本願のスイッチギヤの操作ロッド挿入口の開閉装置は、スイッチギヤ内部の遮断器を操作する操作ロッドを挿入するためにスイッチギヤ筐体面に形成された操作ロッド挿入口をＬ字の垂直部分で開閉するＬ字型鉄板と、L字型鉄板のＬ字の水平部分と係合し、上下に動作することでＬ字型鉄板を回転させるスライド板と、を備え、スライド板を上昇させることで、Ｌ字型鉄板を回転させ、Ｌ字の垂直部分で閉じた前記操作ロッド挿入口を開口状態とし、自重によるスライド板の下降に伴ってＬ字型鉄板を逆方向に回転させ、操作ロッド挿入口をＬ字型鉄板のＬ字の垂直部分により閉口状態とするものである。 The opening / closing device for the operation rod insertion opening of the switchgear of the present application opens and closes the operation rod insertion opening formed in the switchgear housing surface with an L-shaped vertical portion to insert the operation rod for operating the circuit breaker inside the switchgear. An L-shaped iron plate, and a slide plate that engages with an L-shaped horizontal portion of the L-shaped iron plate and rotates the L-shaped iron plate by operating up and down, and by raising the slide plate, The L-shaped iron plate is rotated to open the operation rod insertion opening closed by the vertical portion of the L-shape, and the L-shaped iron plate is rotated in the opposite direction as the slide plate descends due to its own weight. Is closed by an L-shaped vertical portion of an L-shaped iron plate.
　本願のスイッチギヤの操作ロッド挿入口の開閉装置は、操作ロッド挿入口の開閉を、バネを用いることなく行うことができ、バネの破損により、操作ロッド挿入口が開口状態のままとなることを防止することができ、ホットガス漏れによる損害を防止することができる。 The opening / closing device for the operation rod insertion opening of the switch gear of the present application can open and close the operation rod insertion opening without using a spring, and the operation rod insertion opening remains open due to the breakage of the spring. It is possible to prevent damage due to hot gas leakage.
実施の形態１におけるスイッチギヤの側断面図である。FIG. 2 is a side sectional view of the switchgear according to the first embodiment. 実施の形態１における開閉装置を有する前面扉（表面）の斜視図である。FIG. 3 is a perspective view of a front door (front surface) having the opening / closing device according to the first embodiment. 図２の開閉装置の拡大斜視図である。FIG. 3 is an enlarged perspective view of the opening and closing device of FIG. 2. 実施の形態１における開閉装置を有する前面扉（裏面）の斜視図である。FIG. 3 is a perspective view of a front door (rear surface) having the opening / closing device according to the first embodiment. 図４の開閉装置の拡大斜視図である。FIG. 5 is an enlarged perspective view of the opening / closing device of FIG. 4.
　実施の形態の説明及び各図において、同一の符号を付した部分は、同一又は相当する部分を示すものである。 部分 In the description of the embodiments and the drawings, the same reference numerals denote the same or corresponding parts.
実施の形態１．
　以下、実施の形態１について図１から図５を用いて説明する。
＜スイッチギヤの基本構成＞
　図１はスイッチギヤ１００の側断面図を示しており、スイッチギヤ１００における操作ロッド挿入口２とその開閉装置６の配置を示している。 Embodiment 1 FIG.
Hereinafter, Embodiment 1 will be described with reference to FIGS. 1 to 5.
<Basic configuration of switchgear>
FIG. 1 is a side sectional view of the switchgear 100, and shows the arrangement of the operation rod insertion port 2 and the opening / closing device 6 in the switchgear 100. FIG.
　まず、図１に基づきスイッチギヤ１００の基本的な構成を説明する。図の左側がスイッチギヤ１００の前面側、右側が背面側に対応する。背面側には、外線ケーブル１７、零相電流器１８、電圧計１９、電流計２０が配置され、中間位置に母線１６が配置されている。 First, the basic configuration of the switchgear 100 will be described with reference to FIG. The left side of the figure corresponds to the front side of the switchgear 100, and the right side corresponds to the back side. On the rear side, an external cable 17, a zero-phase current device 18, a voltmeter 19, and an ammeter 20 are arranged, and the bus 16 is arranged at an intermediate position.
　スイッチギヤ１００の前面扉１の内部に遮断器１５が配置されており、遮断器１５の前面には緊急時に電流を遮断するためのトリップボタン１４が備えられている。さらに前面扉１には、操作ロッド挿入口２が形成されており、操作ロッド１３をこの操作ロッド挿入口２から挿入する。短絡事故等の緊急時には、操作ロッド１３を用いて、遮断器１５前面のトリップボタン１４を操作し、遮断器１５内の接点を強制的に開放する。 遮断 A circuit breaker 15 is arranged inside the front door 1 of the switchgear 100, and a trip button 14 for interrupting current in an emergency is provided on the front of the circuit breaker 15. Further, an operation rod insertion port 2 is formed in the front door 1, and an operation rod 13 is inserted through the operation rod insertion port 2. In an emergency such as a short circuit accident, the trip button 14 on the front of the circuit breaker 15 is operated by using the operation rod 13 to forcibly open the contacts in the circuit breaker 15.
　図中の操作ロッド挿入口２に対応して、前面扉１の内側に取付けられているのが、操作ロッド挿入口２の開閉装置６であり、以下に本実施の形態で用いた開閉装置６について詳細に説明する。 The opening / closing device 6 for the operation rod insertion port 2 is attached to the inside of the front door 1 in correspondence with the operation rod insertion port 2 in the drawing, and the opening / closing device 6 used in the present embodiment will be described below. Will be described in detail.
　本実施の形態においては、スイッチギヤ１００の筐体外部から操作ロッド１３を挿入するための操作ロッド挿入口２を、スイッチギヤ１００の前面扉１に形成した例で説明する。しかし、これに限定するものではなく、スイッチギヤ１００の外部を覆う筐体の扉部分、それ以外の部分等のいずれであっても操作ロッド挿入口２を形成することができる。 In the present embodiment, an example in which the operation rod insertion port 2 for inserting the operation rod 13 from outside the housing of the switchgear 100 is formed in the front door 1 of the switchgear 100 will be described. However, the present invention is not limited to this, and the operation rod insertion port 2 can be formed in any of the door portion of the housing that covers the outside of the switchgear 100 and other portions.
＜操作ロッド挿入口の開閉装置の構成＞
　図２から図５は、いずれもスイッチギヤ１００の前面扉１に形成された操作ロッド挿入口２の開閉装置６を示している。図２は前面扉１の表面、図４は前面扉１の裏面から観察した状態を示しており、図３、図５は各々図２、図４の開閉装置部分の拡大図を示している。 <Structure of the opening / closing device for the operation rod insertion port>
2 to 5 show the opening / closing device 6 for the operation rod insertion opening 2 formed in the front door 1 of the switchgear 100. FIG. 2 shows a state observed from the front surface of the front door 1, and FIG. 4 shows a state observed from the back surface of the front door 1, and FIGS. 3 and 5 show enlarged views of the opening / closing device portion of FIGS.
　図２に示すように、操作ロッド挿入口２は前面扉１のほぼ中央に形成され、開閉装置６は前面扉１の裏面に配置している。そのため、図３に示した拡大図では開閉装置６を前面扉１越しに観察していることになるので、破線で示している。ただし、開閉装置６を操作する取っ手５は、前面扉１の裏面から表面へ突出しているので、実線により記載している。
　また、図３には、前面扉１自体は記載していないが、開閉装置６の説明のために、取っ手５を前面扉１から突出させるために前面扉１に形成した取っ手取出穴９と、前面扉１に形成した操作ロッド挿入口２は実線を用いて示している。 As shown in FIG. 2, the operation rod insertion port 2 is formed substantially at the center of the front door 1, and the opening / closing device 6 is disposed on the back of the front door 1. Therefore, in the enlarged view shown in FIG. 3, since the opening / closing device 6 is observed through the front door 1, it is indicated by a broken line. However, since the handle 5 for operating the opening / closing device 6 projects from the back surface of the front door 1 to the front surface, it is indicated by a solid line.
Although the front door 1 itself is not shown in FIG. 3, a handle extraction hole 9 formed in the front door 1 to make the handle 5 protrude from the front door 1 for description of the opening / closing device 6; The operation rod insertion port 2 formed in the front door 1 is shown using a solid line.
　図５は、図４に示した前面扉１の裏面に形成された開閉装置６を拡大して示すもので、開閉装置６は保持板１０と前面扉１（図３と同様に記載を省略）の間に形成されている。 FIG. 5 is an enlarged view of the opening / closing device 6 formed on the back surface of the front door 1 shown in FIG. 4, and the opening / closing device 6 includes the holding plate 10 and the front door 1 (the description is omitted as in FIG. 3). Is formed between.
　図２から図５、特に図３、図５からわかるように、開閉装置６は操作ロッド挿入口２を開閉するシャッターであるＬ字型鉄板３と、このＬ字型鉄板３とリンクし、Ｌ字型鉄板３を回転動作させるスライド板４で主に構成されている。 As can be seen from FIGS. 2 to 5, particularly FIGS. 3 and 5, the opening / closing device 6 includes an L-shaped iron plate 3 serving as a shutter for opening and closing the operation rod insertion opening 2, and is linked to the L-shaped iron plate 3. It mainly comprises a slide plate 4 for rotating the iron-shaped iron plate 3.
　Ｌ字型鉄板３には、操作ロッド挿入口２を閉じるシャッターとなるＬ字の垂直部分（以下、垂直部分）と、スライド板４とリンクするＬ字の水平部分(以下、水平部分)とで形成され、このＬ字型鉄板３のＬ字の折れ曲がり部分に形成された貫通孔に挿入された回転軸を中心として回転運動をするように構成されている。
　スライド板４の一方の面には、図３に示すように取っ手５がリベットで固定されている。他方の面には、保持板１０に形成されたガイド用穴１１に対応したピン１２が形成されている。 The L-shaped iron plate 3 includes an L-shaped vertical portion (hereinafter, a vertical portion) serving as a shutter for closing the operation rod insertion opening 2 and an L-shaped horizontal portion (hereinafter, a horizontal portion) linked to the slide plate 4. The L-shaped iron plate 3 is formed so as to rotate around a rotation shaft inserted into a through hole formed in an L-shaped bent portion of the L-shaped iron plate 3.
A handle 5 is fixed to one surface of the slide plate 4 with rivets as shown in FIG. On the other surface, a pin 12 corresponding to the guide hole 11 formed in the holding plate 10 is formed.
　図３、図５に記載した矢印のうち、曲線の矢印７はＬ字型鉄板３が動作する回転方向、直線の矢印８はスライド板４が動作する上下方向を示している。図３、図５に示すように、Ｌ字型鉄板３は、Ｌ字の折れ曲がり部分を貫通する回転軸を中心として回転運動するように配置しており、スライド板４は、スライド板４を挟持する保持板１０に形成された突起部分をガイドとして上下方向へ動作するように配置している。 3 and 5, the curved arrow 7 indicates the rotation direction in which the L-shaped iron plate 3 operates, and the straight arrow 8 indicates the vertical direction in which the slide plate 4 operates. As shown in FIGS. 3 and 5, the L-shaped iron plate 3 is arranged so as to rotate around a rotation axis passing through the L-shaped bent portion, and the slide plate 4 holds the slide plate 4. It is arranged so as to operate in the up and down direction using a projection formed on the holding plate 10 as a guide.
＜操作ロッド挿入口開閉装置の動作＞
　図３、図５を主に用いて、スイッチギヤ１００の操作ロッド挿入口２の開閉装置６の動作について説明する。図３、図５はいずれも、操作ロッド挿入口２は閉口状態を示しており、操作ロッド挿入口２はＬ字型鉄板３の垂直部分によって閉じられている。 <Operation of the operating rod insertion opening / closing device>
The operation of the opening / closing device 6 for the operation rod insertion port 2 of the switchgear 100 will be described mainly with reference to FIGS. 3 and 5 show the operation rod insertion port 2 in a closed state, and the operation rod insertion port 2 is closed by a vertical portion of the L-shaped iron plate 3.
　Ｌ字型鉄板３の水平部分は、スライド板４と係合することによりリンク構造を形成する。スライド板４の上下方向への動作に応じてＬ字型鉄板３の水平部分も上下方向へ動作し、その結果、Ｌ字型鉄板３は、図の曲線の矢印７で示した方向へ回転する。 水平 The horizontal portion of the L-shaped iron plate 3 forms a link structure by engaging with the slide plate 4. The horizontal portion of the L-shaped iron plate 3 also moves in the vertical direction in accordance with the vertical movement of the slide plate 4, and as a result, the L-shaped iron plate 3 rotates in the direction indicated by the curved arrow 7 in the figure. .
　つまり、スイッチギヤ１００の遮断器１５のトリップボタン１４を操作する必要があるときは、前面扉１に突出した取っ手５を上方向へ動作させる。するとスライド板４は図の直線の矢印８で示した上下方向のうち上方向へ動作し、スライド板４にリンクし、Ｌ字型鉄板３の水平部分も上方向に動作する。
　その結果、Ｌ字型鉄板３は、前面から観察して右回りに回転し、操作ロッド挿入口２を閉口していたＬ字型鉄板３の垂直部分が移動し、操作ロッド挿入口２は開口され、遮断器１５のトリップボタン１４を操作することができる。 That is, when it is necessary to operate the trip button 14 of the circuit breaker 15 of the switchgear 100, the handle 5 protruding from the front door 1 is operated upward. Then, the slide plate 4 moves upward in the vertical direction indicated by the straight arrow 8 in the figure, links to the slide plate 4, and the horizontal portion of the L-shaped iron plate 3 also moves upward.
As a result, the L-shaped iron plate 3 rotates clockwise when viewed from the front, the vertical portion of the L-shaped iron plate 3 closing the operation rod insertion port 2 moves, and the operation rod insertion port 2 is opened. Then, the trip button 14 of the circuit breaker 15 can be operated.
　なお、スライド板４を上下方向に動作させるとき、取っ手５を前面扉１から操作するために形成した取っ手取出穴９の大きさ及びスライド板４に取付けられたピンのガイド用として保持板１０に形成されたガイド用穴１１の長さを調整することで、スライド板４の移動可能な距離を変えることができ、その結果、Ｌ字型鉄板３を回転させる角度を調整することができる。 When the slide plate 4 is operated in the vertical direction, the size of the handle extraction hole 9 formed for operating the handle 5 from the front door 1 and the holding plate 10 for guiding the pins attached to the slide plate 4 are provided. By adjusting the length of the formed guide hole 11, the movable distance of the slide plate 4 can be changed, and as a result, the angle of rotation of the L-shaped iron plate 3 can be adjusted.
　トリップボタン１４を操作した後、操作ロッド挿入口２から操作ロッド１３を引き抜くと、取っ手５等を保持していない場合には、スライド板４と取っ手５との自重によりスライド板４は下方向へ移動し、同時にスライド板４とリンクしたＬ字型鉄板３は、先ほどとは反対方向、つまり前面から観察して左回りに回転して、Ｌ字型鉄板３の垂直部分によって操作ロッド挿入口２は閉口状態となる。 After operating the trip button 14 and pulling out the operation rod 13 from the operation rod insertion slot 2, when the handle 5 or the like is not held, the slide plate 4 is moved downward by the weight of the slide plate 4 and the handle 5. The L-shaped iron plate 3 that moves and is simultaneously linked to the slide plate 4 rotates counterclockwise in the opposite direction, that is, rotates counterclockwise when viewed from the front, and is operated by the vertical portion of the L-shaped iron plate 3. Is closed.
　以上のように、本実施の形態においては、トリップボタン１４操作後、スライド板４等の自重により操作ロッド挿入口２が閉口状態となるので、操作ロッド挿入口２の閉め忘れ等の操作ミスを生じることがなく、遮断器１５等での短絡時に内部で生じたホットガスが漏れによる、周辺装置への損害を防止することができる。 As described above, in the present embodiment, after the trip button 14 is operated, the operation rod insertion port 2 is closed by the weight of the slide plate 4 or the like, so that an operation error such as forgetting to close the operation rod insertion port 2 can be avoided. This does not occur, and damage to peripheral devices due to leakage of hot gas generated inside when a short circuit occurs in the circuit breaker 15 or the like can be prevented.
　また、従来の操作ロッド挿入口２のようにバネ等により閉口させる開閉装置に比べ、部材コストを低く抑えることもでき、さらに、バネ等の劣化によるホットガス漏れもなく、安価で安全な開閉装置６を得ることができる。 In addition, the cost of the members can be reduced compared to a conventional opening / closing device that closes with a spring or the like like the operation rod insertion opening 2, and furthermore, there is no hot gas leakage due to the deterioration of the spring and the like, and an inexpensive and safe switching device. 6 can be obtained.
　本願は、様々な例示的な実施の形態及び実施例が記載されているが、実施の形態に記載された様々な特徴、態様、及び機能は特定の実施の形態の適用に限られるのではなく、単独で、または様々な組み合わせで実施の形態に適用可能である。
　従って、例示されていない無数の変形例が、本願明細書に開示される技術の範囲内において想定される。例えば、少なくとも１つの構成要素を変形する場合、追加する場合または省略する場合、さらには、少なくとも１つの構成要素を抽出し、他の実施の形態の構成要素と組み合わせる場合が含まれるものとする。 Although this application describes various exemplary embodiments and examples, the various features, aspects, and functions described in the embodiments are not limited to the application of the specific embodiments. , Alone or in various combinations.
Accordingly, innumerable modifications not illustrated are contemplated within the scope of the technology disclosed herein. For example, a case where at least one component is deformed, added or omitted, and a case where at least one component is extracted and combined with components of other embodiments are included.
１　前面扉、２　操作ロッド挿入口、３　Ｌ字型鉄板、４　スライド板、５　取っ手、６　開閉装置、７　曲線の矢印、８　直線の矢印、９　取っ手取出穴、１０　保持板、１１　ガイド用穴、１２　ピン、１３　操作ロッド、１４　トリップボタン、１５　遮断器、１６　母線、１７　外線ケーブル、１８　零相電流器、１９　電圧計、２０　電流計、１００　スイッチギヤ。 1 front door, 2 operation rod insertion port, 3 L-shaped iron plate, 4 slide plate, 5 handle, 6 open / close device, 7 curved arrow, 8 straight arrow, 9 handle extraction hole, 10 holding plate, 11 guide hole , 12 pin, 13 operation rod, 14 trip button, 15 breaker, 16 bus, 17 outer cable, 18 zero-phase ammeter, 19 voltmeter, 20 ammeter, 100 switchgear.

Claims (3)

  1. 　スイッチギヤ内部の遮断器を操作する操作ロッドを挿入するためにスイッチギヤ筐体面に形成された操作ロッド挿入口をＬ字の垂直部分で開閉するＬ字型鉄板と、
    　前記L字型鉄板のＬ字の水平部分と係合し、上下に動作することで前記Ｌ字型鉄板を回転させるスライド板と、を備え、
    　前記スライド板を上昇させることで、前記Ｌ字型鉄板を回転させ、前記Ｌ字の垂直部分で閉じた前記操作ロッド挿入口を開口状態とし、自重による前記スライド板の下降に伴って前記Ｌ字型鉄板を逆方向に回転させ、前記操作ロッド挿入口を前記Ｌ字型鉄板の前記Ｌ字の垂直部分により閉口状態とすることを特徴とするスイッチギヤの操作ロッド挿入口の開閉装置。     An L-shaped iron plate that opens and closes an operation rod insertion opening formed in a switch gear housing surface at an L-shaped vertical portion to insert an operation rod for operating a circuit breaker inside the switch gear;
    A slide plate that engages with an L-shaped horizontal portion of the L-shaped iron plate and moves up and down to rotate the L-shaped iron plate,
    By raising the slide plate, the L-shaped iron plate is rotated to open the operation rod insertion port closed at the vertical portion of the L-shape, and the L-shape is lowered as the slide plate is lowered by its own weight. An opening and closing device for an operation rod insertion port of a switchgear, wherein a mold iron plate is rotated in a reverse direction so that the operation rod insertion port is closed by the L-shaped vertical portion of the L-shaped iron plate.
  2. 　前記スライド板の重量が、前記Ｌ字型鉄板よりも大きいことを特徴とする請求項１に記載のスイッチギヤの操作ロッド挿入口の開閉装置。 The opening and closing device for an operation rod insertion opening of a switch gear according to claim 1, wherein the weight of the slide plate is larger than that of the L-shaped iron plate.
  3. 　請求項１及び請求項２に記載のスイッチギヤの操作ロッド挿入口の開閉装置を備えたことを特徴とするスイッチギヤ。 A switchgear comprising the switchgear opening / closing device for the operation rod insertion opening of the switchgear according to claim 1 or 2.
PCT/JP2018/034544 2018-09-19 2018-09-19 Device for opening/closing operating rod insertion opening of switch gear, and switch gear in which said device is used WO2020059032A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2020547508A JP6949241B2 (en) 2018-09-19 2018-09-19 Switchgear operation rod insertion port opening / closing device and switchgear using this
PCT/JP2018/034544 WO2020059032A1 (en) 2018-09-19 2018-09-19 Device for opening/closing operating rod insertion opening of switch gear, and switch gear in which said device is used
DE112018007989.9T DE112018007989T5 (en) 2018-09-19 2018-09-19 A switch rod insertion hole opening / closing device for a switchgear assembly and switchgear assembly using the same

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PCT/JP2018/034544 WO2020059032A1 (en) 2018-09-19 2018-09-19 Device for opening/closing operating rod insertion opening of switch gear, and switch gear in which said device is used

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6122106U (en) * 1984-07-12 1986-02-08 富士電機株式会社 Closed switchboard interlock device
JPH09154208A (en) * 1995-11-28 1997-06-10 Toshiba Corp Metal enclosed switchgear
JPH10188745A (en) * 1996-12-20 1998-07-21 Nissin Electric Co Ltd Interlock device of circuit breaker
JP2010098776A (en) * 2008-10-14 2010-04-30 Hitachi Ltd Switchgear

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6122106U (en) * 1984-07-12 1986-02-08 富士電機株式会社 Closed switchboard interlock device
JPH09154208A (en) * 1995-11-28 1997-06-10 Toshiba Corp Metal enclosed switchgear
JPH10188745A (en) * 1996-12-20 1998-07-21 Nissin Electric Co Ltd Interlock device of circuit breaker
JP2010098776A (en) * 2008-10-14 2010-04-30 Hitachi Ltd Switchgear

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