WO2009139036A1 - Dispositif de manœuvre d'ouverture et de fermeture d'un circuit électrique - Google Patents

Dispositif de manœuvre d'ouverture et de fermeture d'un circuit électrique Download PDF

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Publication number
WO2009139036A1
WO2009139036A1 PCT/JP2008/058724 JP2008058724W WO2009139036A1 WO 2009139036 A1 WO2009139036 A1 WO 2009139036A1 JP 2008058724 W JP2008058724 W JP 2008058724W WO 2009139036 A1 WO2009139036 A1 WO 2009139036A1
Authority
WO
WIPO (PCT)
Prior art keywords
operation handle
contact
knob
circuit breaker
state
Prior art date
Application number
PCT/JP2008/058724
Other languages
English (en)
Japanese (ja)
Inventor
健司 大西
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 JP2010511801A priority Critical patent/JP4862095B2/ja
Priority to PCT/JP2008/058724 priority patent/WO2009139036A1/fr
Priority to CN2008801285364A priority patent/CN101981646B/zh
Priority to KR1020107014646A priority patent/KR101106930B1/ko
Priority to TW097128959A priority patent/TWI398893B/zh
Publication of WO2009139036A1 publication Critical patent/WO2009139036A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/046—Means for indicating condition of the switching device exclusively by position of operating part, e.g. with additional labels or marks but no other movable indicators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel
    • H01H2071/565—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel using a add on unit, e.g. a separate rotary actuator unit, mounted on lever actuated circuit breakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel

Definitions

  • the present invention relates to an electric circuit switching operation device, and more particularly to an electric circuit switching operation device suitable for switching a circuit breaker for wiring.
  • a control center functional unit is a circuit configuration unit of a motor control center having main circuit and auxiliary circuit devices necessary for performing a predetermined function. It is prescribed.
  • an MCCB circuit breaker for wiring
  • an electric circuit opening / closing operation device for providing an interlock function that makes it impossible to pull out the functional unit when the operation of the circuit breaker is simplified and when the circuit breaker is ON.
  • Patent Document 1 in order to attach a handle operating device to a circuit breaker for wiring, a mounting seat is provided, which is fastened to the panel panel together with the circuit breaker with a screw, and then the handle operating device is screwed to the mounting seat. What is tightened in is disclosed.
  • An electrical circuit switching operation device (hereinafter sometimes abbreviated as a switching operation device) provided in the function unit of the control center has a function of performing ON / OFF / RESET operation of the circuit breaker for wiring, ON, TRIP, OFF, It also has a function to display the RESET status.
  • the switchgear operating device is configured such that the wiring breaker knob and the operation handle are connected via a link mechanism to operate the wiring breaker by operating the operation handle, and the position of the wiring breaker knob. In response to this, the operating state of the circuit breaker for wiring is displayed on the design surface of the switching device.
  • the operating stroke of the operating handle of the switching device is designed according to the operating stroke of the knob of the circuit breaker, but the ON, TRIP, OFF, and RESET positions of the circuit breaker have tolerances.
  • the indication position of the operating state of the switching device is shifted according to the tolerance of the circuit breaker for wiring.
  • the tolerances of the individual circuit breakers are not uniform, even if the operation state of the circuit breakers is the same, if a plurality of functional units are arranged, the operation position indication position in the switching operation device Therefore, there is a problem that it is not clear whether the ON / OFF operation device is ON display even when the ON / OFF operation device originally displays ON.
  • FIGS. 9 and 10 are diagrams for specifically explaining the problems of the prior art.
  • An example is shown in which the indicated position of the operation handle 2b is shifted due to the tolerance of the operation stroke (C described later) of turning the contact of the circuit breaker for wiring from OFF to ON.
  • the stroke tolerance of the knob that turns the contact of the circuit breaker for wiring from OFF to ON is negative, as shown in FIG. 9, the operation handle 2b indicates the front side from the designed ON display position.
  • the stroke tolerance is a plus tolerance
  • FIG. 10 the operation handle 2b is an instruction past the designed ON display position. For this reason, in a control center in which a plurality of functional units are accommodated, the tolerances of the circuit breakers for wiring are different from each other.
  • the indicated position of the operation handle 2b is the tolerance. As shown in FIG. 9, if the operation handle 2b is in front of the ON display position, there is a problem that the credibility of the ON display itself is suspected.
  • the present invention has been made to solve the above-described problems, and is capable of accurately indicating the operating state of the circuit breaker by the operation handle without being affected by the tolerance of the operation stroke of the knob of the circuit breaker.
  • An operating device is to be provided.
  • the electrical circuit switching operation device includes a circuit breaker having a closing mechanism that closes the contact and drives the knob to the operation completion position when the knob moves beyond the dead point from the contact OFF to the ON direction.
  • An operation handle that is connected to the breaker knob via a link mechanism and rotates to drive the knob to open and close the circuit breaker, and the contact at the rotation position of the operation handle when the contact of the breaker is ON
  • a design panel that displays the ON state of the operation handle and displays the OFF state of the contact at the rotation position of the operation handle when the circuit breaker is in the OFF state, and the operation handle is turned and the operation handle is turned ON of the design panel.
  • a stopper is provided to prevent the operation handle from rotating at the position where the state is displayed, and the operation handle is rotated from the contact OFF to the ON direction to drive the knob to turn on the circuit breaker.
  • the contact of the circuit breaker is closed, and the operation handle is driven and biased through the link mechanism by the driving force of the closing mechanism of the circuit breaker, and the operation handle is moved to the stopper By pressing, the operation handle is held at a position for displaying the ON state of the design panel.
  • the electric circuit switching operation device of the present invention is a circuit breaker having a tripping mechanism that opens the contact and drives the knob to the operation completion position when the knob moves beyond the dead point in the ON to OFF direction of the contact.
  • An operation handle that is connected to the breaker knob via a link mechanism and is rotated to drive the knob to open and close the breaker, and the operation handle is turned when the contact of the breaker is in an ON state.
  • a design panel that displays the ON state of the contact at the position and displays the OFF state of the contact at the rotation position of the operation handle when the circuit breaker is in the OFF state, and the operation handle rotates and the operation handle is the design
  • An OFF position stop mechanism that suppresses the rotation of the operation handle at or near the position where the panel OFF state is displayed is provided, and the operation handle is rotated from the contact ON to the OFF direction.
  • the operation state of the circuit breaker can be accurately indicated by the operation handle without being affected by the tolerance of the operation stroke of the knob of the circuit breaker.
  • FIG. 4 is a side view of FIG. 3.
  • FIG. 4 is a partially enlarged back view of FIG. 3. It is a figure explaining the relationship between the operation handle in Embodiment 1, and the operation
  • FIG. 10 is another partial enlarged view of FIG. 1 according to the second embodiment. It is sectional drawing in the arrow line of FIG. It is explanatory drawing explaining the problem of a prior art. It is another explanatory drawing explaining the problem of a prior art.
  • Embodiment 1 When a circuit breaker for wiring is operated very slowly, an accident such as an arc occurs at an internal contact. For this reason, regardless of the operation speed, when the knob moves to a certain position in the ON direction from the contact OFF (hereinafter, this position is referred to as a dead point), the closing mechanism even if the knob is not moved to the ON operation completion position. When the knob is moved to a certain position (hereinafter referred to as the dead point) from ON to OFF, the contact is quickly closed, and even if the knob does not move to the OFF operation completion position, it is pulled out. It is well known that some have a mechanism that quickly opens the contact by the mechanism. Examples of devices equipped with such devices include commercially available circuit breaker model names NF250-SW and NF250-HW manufactured by Mitsubishi Electric Corporation, and Patent Document 2.
  • the circuit breaker equipped with this mechanism moves the internal contact to the normal position of ON and OFF even if no external force is applied to the knob at a position beyond the dead point. Further, even if a driving force by an external force is not applied at a position beyond the dead point, the wiring breaker knob is driven to the operation completion position by the operating force of the closing and releasing mechanism.
  • the operation stroke A of the operation handle 2b for operating the contact from OFF to ON is the minimum that allows for the tolerance of the knob 2k for turning the contact of the circuit breaker from OFF to ON.
  • the wiring breaker does not move to the ON completion position 7 when the operation handle 2b is at the ON position 6.
  • Driving force by the circuit breaker closing mechanism is applied to the operation handle 2b.
  • a stopper (described later) is provided on the operation handle 2b so that the operation handle 2b does not rotate beyond the ON display position (described later) so that the driving force of the wiring breaker closing mechanism continues to be applied to the operation handle 2b.
  • the indicated position of the operation handle 2b is held at the position (display position) determined by the stopper without being affected by the operation stroke tolerance of the circuit breaker for wiring.
  • FIG. 6 is a diagram for explaining the relationship between the operation handle and the operation stroke of the breaker knob in the first embodiment.
  • C is an operation stroke (angle) of the knob 2k for turning the contact of the circuit breaker for wiring from OFF to ON.
  • A is an operation stroke (angle) of the operation handle 2b for operating the contact from OFF to ON, and is represented by a stroke (angle) of the knob 2k of the circuit breaker for wiring caused by the operation handle 2b.
  • B is an operation stroke (angle) when the operation handle 2b is rotated in the anti-ON direction from the OFF position to perform RESET.
  • D is the operating range of the knob 2k.
  • a + B is an operation range of the operation handle 2b.
  • the contact breaker If the contact breaker is opened (TRIP) due to an abnormality such as a short circuit, the contact breaker returns to the OFF state again by a RESET operation and can be reused.
  • This RESET operation requires a stroke larger than the OFF position of the knob (that is, it needs to be rotated in the anti-ON direction from the OFF position of the knob).
  • Mitsubishi Electric Corporation circuit breaker etc. for example.
  • a stroke that can be operated beyond the OFF position that is, turning the operation handle in the opposite ON direction from the OFF position
  • the above-described stopper is not provided, and the OFF display position indicated by the operation handle is shifted due to the operation stroke tolerance of the circuit breaker for wiring.
  • the ON display uses the mechanism related to the operation handle as described above, while the OFF display provides a play (play) in the link mechanism between the knob and the operation handle when the wiring breaker is OFF.
  • the design is such that the driving force from the tripping mechanism when the circuit breaker is OFF is not applied to the operation handle, and a slight catch is provided on the mechanism of the operation handle at the OFF position of the operation handle.
  • FIG. 1 to FIG. 5 explain Embodiment 1 of the present invention.
  • FIG. 1 is a front view of a functional unit of a control center
  • FIG. 2 is a side view of FIG. 1
  • FIG. 4 is a side view of FIG. 3
  • FIG. 5 is a partially enlarged back view of the state in which the link mechanism of the operation handle of FIG. 3 is removed.
  • the same or corresponding parts are denoted by the same reference numerals, and description thereof may be partially omitted.
  • the functional unit 1a of the control center has a connector 1b connected to a power source, and an electric circuit switching operation device (opening / closing) including a circuit breaker 1c and a circuit breaker 1c as an example of a circuit breaker.
  • Operation device) 1d current sensor / zero-phase current transformer 1e, electromagnetic switch 1f, control circuit protection fuse 1g, control circuit terminal block 1h, electromagnetic relay 1j for realizing various sequences, power from functional unit to load Is provided with a connector 1k.
  • the opening / closing operation device 1d controls the circuit breaker 1c, the operation handle 2b, the design panel 2c for displaying the operation state (ON, OFF state, etc.) of the circuit breaker 1c, and the design panel 2c.
  • the operation handle 2b is connected to the knob 2k of the circuit breaker 1c via the link mechanism 2f, and the operation handle 2b is rotated to drive the knob 2k to open and close the circuit breaker 1c.
  • a cam 2e is integrally coupled to the operation handle 2b by a shaft, and is connected to a link mechanism 2f by an eccentric shaft 2n coupled to the cam 2e. When the cam 2e is rotated, the link mechanism 2f is moved substantially linearly. The knob 2k connected to the mechanism 2f can be driven substantially linearly.
  • the stopper 4d stops the operation handle 2b at the ON display position. That is, the position at which the operation handle 2b is stopped by the stopper 4d is such that the position on the design panel 2c indicated by the operation handle 2b at the stopped position matches the ON display position of the design panel 2c (see FIG. 5).
  • the cam 2e is urged (arrow) via the knob 2k and the link mechanism 2f by the driving force of the closing mechanism of the wiring breaker 1c and is pressed against the stopper 4d (arrow).
  • the position on the design panel 2c indicated by the operation handle 2b is held at the ON display position of the design panel 2c.
  • the circuit breaker 1c for wiring includes a contact portion, and includes a contact portion closing mechanism, a tripping mechanism, and a knob 2k that performs ON, OFF, and RESET operations.
  • the operation stroke of the operation handle 2b for operating the contact from OFF to ON is set to prevent the position indicated by the operation handle 2b from being shifted from the ON display position on the design panel.
  • the contact point of the circuit breaker 1c for wiring is made shorter than the operation stroke of the knob 2k for turning the contact point from OFF to ON and exceeds the dead point of the closing mechanism of the circuit breaker 1c.
  • the operating handle 2b is turned from the contact OFF to the ON direction, and the knob 2k is driven via the cam 2e, the eccentric shaft 2n, and the link mechanism 2f, and the dead point of the closing mechanism of the circuit breaker 1c for wiring.
  • FIG. 7 and 8 illustrate the second embodiment.
  • FIG. 7 is another partially enlarged view corresponding to FIG. 3 installed in the functional unit of the control center.
  • FIG. The circuit breaker side is removed from the cam in the sectional view taken along the arrow line. 7 and 8, the OFF position stop device is composed of a small protrusion 5c provided on the operation handle 2b and an elongated slot 5d provided on the design panel 2c.
  • the operation handle 2b In order to turn off the circuit breaker 1c when the circuit breaker 1c is in the ON state, the operation handle 2b is operated from the contact ON to the OFF direction and connected to the operation handle 2b via the link mechanism 2f.
  • the knob 2k is driven to a certain position in the OFF direction from the contact ON (hereinafter, this position is referred to as a dead point), even if the knob 2k does not move to the OFF operation completion position, the wiring is cut off.
  • the contact is quickly opened by the tripping mechanism of the container 1c. At this time, even if no external force is applied to the knob 2k at a position beyond the dead point, the internal contact moves to the normal OFF position.
  • the knob 2k of the circuit breaker 1c for wiring is driven to the operation completion position by the driving force of the tripping mechanism without applying a driving force by an external force at a position beyond the dead point.
  • the operation handle 2b is provided with the small protrusion 5c at or near the OFF position of the operation handle 2b, and the design panel 2c is provided with the slot 5d, the operation handle 2b is set to the OFF display position of the design panel 2c.
  • the small protrusion 5c fits into the slot 5d, and as a result, the operation handle 2b is stopped at the OFF display position.
  • the small protrusion and the slot may be reversed, and the small protrusion may be provided on the design panel 2c side and the slot may be provided on the operation handle 2b side.
  • the contact of the circuit breaker is designed so that the driving force by the tripping mechanism when the contact of the circuit breaker 1c for wiring is turned off is not applied from the knob 2k to the operation handle 2b through the link mechanism 2f.
  • the operation handle 2b can be stopped by the OFF position stop mechanism at or near the position where the OFF state of the design panel 2c is displayed so as not to be affected by the tolerance of the operation stroke of the knob from ON to OFF.
  • the shift of the OFF display position of the design panel 2c indicated by 2b can be prevented.
  • the second embodiment can be implemented in addition to the first embodiment.
  • the wiring interrupting device may be a wiring interrupting device mounted at a location other than the function unit of the control center, and the operation handle may have a shape other than the shape shown in FIGS. Also good.

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  • Breakers (AREA)

Abstract

La présente invention concerne un dispositif de manœuvre d'ouverture et de fermeture d'un circuit électrique qui permet à l'opérateur de contrôler précisément l'état de manœuvre d'un disjoncteur au moyen d'un bouton de manœuvre, sans être influencé par la tolérance de la course de manœuvre d'un bouton du disjoncteur. Quand le bouton de manœuvre est tourné d'un état de « contact coupé » à un état de « contact établi » de façon à actionner le bouton, si le bouton de manœuvre est tourné au-delà du point mort d'un mécanisme de mise sous tension du disjoncteur, le contact du disjoncteur est fermé et, dans le même temps, le bouton de manœuvre est alimenté et actionné par la force d'actionnement du mécanisme de mise sous tension du disjoncteur par l'intermédiaire d'un mécanisme de liaison. Puis, par pression du bouton de manœuvre contre une butée, le bouton de manœuvre est maintenu dans la position indiquant l'état activé d'un panneau décoratif.
PCT/JP2008/058724 2008-05-12 2008-05-12 Dispositif de manœuvre d'ouverture et de fermeture d'un circuit électrique WO2009139036A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2010511801A JP4862095B2 (ja) 2008-05-12 2008-05-12 電気回路開閉操作装置
PCT/JP2008/058724 WO2009139036A1 (fr) 2008-05-12 2008-05-12 Dispositif de manœuvre d'ouverture et de fermeture d'un circuit électrique
CN2008801285364A CN101981646B (zh) 2008-05-12 2008-05-12 电路开关操作装置
KR1020107014646A KR101106930B1 (ko) 2008-05-12 2008-05-12 전기회로 개폐조작장치
TW097128959A TWI398893B (zh) 2008-05-12 2008-07-31 電路開閉操作裝置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2008/058724 WO2009139036A1 (fr) 2008-05-12 2008-05-12 Dispositif de manœuvre d'ouverture et de fermeture d'un circuit électrique

Publications (1)

Publication Number Publication Date
WO2009139036A1 true WO2009139036A1 (fr) 2009-11-19

Family

ID=41318419

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/058724 WO2009139036A1 (fr) 2008-05-12 2008-05-12 Dispositif de manœuvre d'ouverture et de fermeture d'un circuit électrique

Country Status (5)

Country Link
JP (1) JP4862095B2 (fr)
KR (1) KR101106930B1 (fr)
CN (1) CN101981646B (fr)
TW (1) TWI398893B (fr)
WO (1) WO2009139036A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0249041U (fr) * 1988-09-29 1990-04-05
JPH065192A (ja) * 1992-06-16 1994-01-14 Fuji Electric Co Ltd 回路遮断器の外部操作ハンドル装置
JPH06314536A (ja) * 1993-04-30 1994-11-08 Terasaki Denki Sangyo Kk 開閉器の操作装置
JP2005026106A (ja) * 2003-07-03 2005-01-27 Fuji Electric Fa Components & Systems Co Ltd 回路遮断器の外部操作ハンドル装置
JP2007134148A (ja) * 2005-11-10 2007-05-31 Fuji Electric Fa Components & Systems Co Ltd 回路遮断器の外部操作ハンドル装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2730165B2 (ja) * 1988-05-09 1998-03-25 住友化学工業株式会社 無機充填剤含有ポリオレフィン組成物
JP4395022B2 (ja) * 2004-07-13 2010-01-06 三菱電機株式会社 回路遮断器
JP2007134149A (ja) 2005-11-10 2007-05-31 Sony Corp 非水電解質電池
JP4735418B2 (ja) * 2006-05-29 2011-07-27 富士電機機器制御株式会社 回路遮断器の外部操作ハンドル装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0249041U (fr) * 1988-09-29 1990-04-05
JPH065192A (ja) * 1992-06-16 1994-01-14 Fuji Electric Co Ltd 回路遮断器の外部操作ハンドル装置
JPH06314536A (ja) * 1993-04-30 1994-11-08 Terasaki Denki Sangyo Kk 開閉器の操作装置
JP2005026106A (ja) * 2003-07-03 2005-01-27 Fuji Electric Fa Components & Systems Co Ltd 回路遮断器の外部操作ハンドル装置
JP2007134148A (ja) * 2005-11-10 2007-05-31 Fuji Electric Fa Components & Systems Co Ltd 回路遮断器の外部操作ハンドル装置

Also Published As

Publication number Publication date
CN101981646A (zh) 2011-02-23
JPWO2009139036A1 (ja) 2011-09-08
KR101106930B1 (ko) 2012-01-25
JP4862095B2 (ja) 2012-01-25
TW200947487A (en) 2009-11-16
TWI398893B (zh) 2013-06-11
CN101981646B (zh) 2013-12-04
KR20100085197A (ko) 2010-07-28

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