EP2410548A1 - Mécanisme de commande pour un commutateur électrique - Google Patents

Mécanisme de commande pour un commutateur électrique Download PDF

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Publication number
EP2410548A1
EP2410548A1 EP10170685A EP10170685A EP2410548A1 EP 2410548 A1 EP2410548 A1 EP 2410548A1 EP 10170685 A EP10170685 A EP 10170685A EP 10170685 A EP10170685 A EP 10170685A EP 2410548 A1 EP2410548 A1 EP 2410548A1
Authority
EP
European Patent Office
Prior art keywords
contact
switching device
spring
switching
movable contact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10170685A
Other languages
German (de)
English (en)
Inventor
Gregor Fleitmann
Volker Heins
Detlef Koch
Bogdan Zabrocki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eaton Industries GmbH
Original Assignee
Eaton Industries GmbH
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 Eaton Industries GmbH filed Critical Eaton Industries GmbH
Priority to EP10170685A priority Critical patent/EP2410548A1/fr
Priority to CA2806128A priority patent/CA2806128A1/fr
Priority to CN201180035988XA priority patent/CN103180925A/zh
Priority to EP11735436.5A priority patent/EP2596510B1/fr
Priority to US13/811,412 priority patent/US20130118872A1/en
Priority to PCT/EP2011/062567 priority patent/WO2012010670A1/fr
Publication of EP2410548A1 publication Critical patent/EP2410548A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs
    • H01H5/08—Energy stored by deformation of elastic members by compression or extension of coil springs one end of spring transmitting movement to the contact member when the other end is moved by the operating part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • 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
    • H01H71/503—Means for increasing the opening stroke of the contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/046—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms

Definitions

  • the invention relates to a switch lock for an electrical switching device, such. for circuit breakers, motor protection switches or disconnectors.
  • This switching mechanism consists of a contact system with at least one fixed contact and at least one movable contact piece which is rotatably mounted on a contact carrier, which closes the contact to the fixed contact (210) in an ON position of the switching device and in an OFF position of the switching device, and a support lever rotatably supported in a bearing and a latch lever. Furthermore, the contact system on a toggle, at the knee joint engages a lock spring. This lock spring is stretched in the ON position and tries to lift the contact carrier and thus the movable contact piece from the fixed contact on the lower part of the toggle lever.
  • the switch lock has three switch positions: in the ON position, the toggle lever is depressed.
  • the knee lever is supported on the one hand on the support lever, on the other hand it is attached to the contact carrier.
  • a handle biases in the ON position of the switching device, the lock spring such that the force acting on the knee joint spring force holds the knee joint in cooperation with a knee joint stop in the pushed-through position.
  • the latch opens, so that the rotatably mounted on one side support lever on the opposite side of the rotatable support no longer finds support.
  • the lock spring now pulls over the lower part of the toggle lever the contact carrier and thus the movable contact piece from the fixed contact. This effect is enhanced by the acting electrodynamic forces.
  • the contacts are thus separated, although the toggle lever is still in the pushed-through position.
  • the electrical switching device is not in the ON or in the OFF position, but in a TRIPLE position.
  • the switchgear To switch on again, the switchgear must first be switched to the OFF position.
  • the lock spring pulls in the OFF position, the knee joint far into the rear, the stop for the depressed position opposite side, that a force is exerted on the support lever because of limited by a stop opening travel of the contact carrier, which lets him lock with the latch lever , The switching device is now ready for switching back on.
  • the switching mechanism according to the invention is characterized in that it dispenses with a toggle lever and instead a construction with a rotatably mounted contact carrier, which is supported on a support lever, is proposed, in which by a corresponding dimensioning and arrangement only a spring the task of the lock spring and at the same time the contact pressure spring from the known from the prior art switching locks takes over.
  • the electrical switching devices according to the invention are characterized in that they contain one or more switching locks according to the invention with the feature combination according to claim 1.
  • the movable contact piece is rotatably attached to a contact carrier.
  • this contact carrier engages the spring.
  • this spring is fastened to an assembly which can be moved by a handle for switching the switching device on and off.
  • the contact carrier is rotatably clamped with a first end, with its second end it is supported in the ON as well as in the OFF state of the electrical switching device on a one-sided rotatably clamped support lever. In the OFF position, the spring holds the movable contact piece in the open position, ie, the movable contact piece is lifted from the fixed contact.
  • the spring has the function of the lock spring from the known from the prior art switch locks.
  • the articulation point of the spring changes with the assembly moved by the handle in such a way that it now pulls the movable contact piece onto the fixed contact.
  • the spring now acts as a contact pressure spring.
  • the support lever rotates about its rotatable clamping point, so that the rotatably mounted on one side contact carrier on the opposite side of the rotatable support no longer finds support.
  • the spring now pulls the contact carrier and thus the movable contact piece from the fixed contact. This effect is enhanced by the acting electrodynamic forces.
  • the contact carrier is shaped and the movable contact piece rotatably attached to the contact carrier, that the storage location of the rotatable contact piece falls in the case of triggering under the line of action of the spring. The spring thus pulls the movable contact piece further away from the fixed contact.
  • the electrical switching device is thus after the ON and the OFF position in a further, third switching position, namely the TRIPPED position.
  • This TRIPPED position is characterized by the fact that the switching device is not immediately brought back to the ON position from this position. Previously, the contact carrier must be brought back into the position in which he can rest on the support lever. Without deliberate action, the switching device can not be switched on again.
  • the spring is a helical tension spring.
  • Electrical switching devices according to the invention are characterized in that they contain one or more switching locks according to the invention.
  • the electrical switching device is a multiphase switching device, then a separate switching mechanism according to the invention can be provided for each phase.
  • the advantage of this variant is the short trip time until the contacts have separated from each other, caused by the low masses to be moved and thus the low To be overcome moment of inertia of the respective switching mechanism.
  • a shorter trip time leads to a lower contact load, which is to be regarded as a further advantage.
  • the advantage lies in a further reduction of the required number of individual parts, which leads to a further reduction of the installation effort and a further cost reduction.
  • the Fig. 1 shows the principle of a switching lock (100) according to the prior art.
  • the switch lock consists of a contact system (200) with a fixed contact (210) and a movable contact piece (220), which is rotatably mounted on a contact carrier (300) in a contact piece bearing (310).
  • the contact between the contact pad (225) of the movable contact piece (220) and the contact plate (215) of the fixed contact (210) is closed, as in Fig. 1 indicated by dashed lines.
  • Fig. 1 drawn solid OFF position is the contact between the contact plate (225) the movable contact piece (220) and the contact plate (215) of the fixed contact (210) separated.
  • the contact carrier (300) is rotatably on the one hand on a toggle lever system (700) consisting of a lower toggle (710), a toggle joint (720) and an upper toggle lever (730) via a lower toggle joint (740) and on the other hand via a rotatable contact carrier bearing attached to a frame of the switch latch (100).
  • the toggle lever system (700) on the other hand via a rotatable upper toggle joint (750) on the support lever (500) from.
  • This support lever (500) is rotatably mounted at a first end in a support lever bearing (510) on the frame of the switching mechanism (100).
  • the toggle lever system (700) applies force to the support lever (500) in the z direction.
  • a lock spring (410) engages the toggle joint (720).
  • the lock spring (410) is articulated at its second end to a movable actuating system (150).
  • the spring attachment point of the actuation system (150) is movable between a position (160) in the ON position and a position (170) in the OFF position.
  • the force of the lock spring (410) acts on the toggle joint (720) to be pulled to a kinked position.
  • the contacts (215, 225) open or remain in the open position.
  • the latch lever (600) opens by turning in the direction of care around that latching lever bearing (610).
  • the at its first end in the support lever bearing (510) rotatably mounted support lever (500) at its second end no more support and opens in the z-direction.
  • the lock spring (410) now pulls the contact carrier (300) and thus the movable contact piece (220) with its contact plate (225) from the fixed contact (210) via the lower toggle lever (710).
  • This effect is enhanced by the acting electrodynamic forces.
  • the contacts (215, 225) are thus separated from each other, although the toggle lever system (700) is still in the pushed-through position.
  • the electrical switching device is located neither in the ON, nor in the OFF position, but in a TRIPLE position between the other two positions.
  • the switchgear To switch on again, the switchgear must first be switched to the OFF position.
  • the toggle lever system (700) buckles.
  • the lock spring (410) pulls the toggle link (720) in the OFF position far enough into the rear, the stop (760) for the pushed position opposite side, that because of a Maisharianschlags (320) limited opening path of the contact carrier (300) a Force is exerted on the support lever (500), which lets him lock with the latch lever (600) again.
  • the switching device is now ready for switching back on.
  • Fig. 2 the principle of a switching mechanism (100) according to the invention is shown. Pulled through is the switch lock (100) drawn in the open OFF position, dashed lines hung in the closed ON position. In this ON position, a fixed contact (210) and a movable contact piece (220) of a contact system (200) touch each other. A spring (400) engages on the movable contact piece (220) on the one hand, on the other hand on a Federanlenkddling (160), which is designed to be movable with the aid of an actuating system (150). The movable contact piece (220) is rotatably connected to the contact carrier (300) by means of a contact carrier bearing (305).
  • the contact carrier (300) itself is rotatably connected to a first end via a contact carrier bearing (305) with the frame of the switching mechanism (100). With its other end, the contact carrier (300) is supported on a support lever (500).
  • the spring (400) In the ON position (160) of the Federanlenkmays the spring (400) causes a force on the movable contact piece (220) in the closing direction, ie in the direction of the fixed contact (210) and against the z-direction.
  • the spring (400) in this position (160) acts as a contact pressure spring (420).
  • the effective direction of the spring (400) changes to a component in FIG Opening direction, ie the z-direction, acts.
  • the movable contact piece (220) lifts off from the fixed contact (210) and remains in the open OFF position.
  • Fig. 3 shows in principle the switching mechanism according to the invention (100) in the OFF position in a side view.
  • the spring pivot point (170) is in the OFF position, the spring (400) pulls the movable contact piece (220) in the open position against a stop (230).
  • the contact carrier (300) is supported with its seen in the z direction upper end against the support lever (500).
  • Fig. 5 shows in principle the switching mechanism according to the invention (100) at the moment of release in a side view.
  • the spring attachment point (160) is in the ON position.
  • the spring (400) pulls the movable contact piece (220) into the closed position against the fixed contact (210).
  • the support lever (500) rotates about its support lever bearing (510) as indicated by the arrow, but still supports the contact carrier (300) at its upper end viewed in the z direction.
  • the spring (400) amplifies this movement through its articulation points (160, 240) on the actuating system (150) and the movable contact piece (220). Also, the acting electrodynamic forces act in the same direction, so that the contacts (210, 220) open very quickly. The opening movements of the movable contact piece (220) and the contact carrier (300) are limited by corresponding stops (230, 320).
  • the invention is described only for single-phase devices. Of course it can be multiplied also applied for multi-phase switching devices.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Switch Cases, Indication, And Locking (AREA)
EP10170685A 2010-07-23 2010-07-23 Mécanisme de commande pour un commutateur électrique Withdrawn EP2410548A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP10170685A EP2410548A1 (fr) 2010-07-23 2010-07-23 Mécanisme de commande pour un commutateur électrique
CA2806128A CA2806128A1 (fr) 2010-07-23 2011-07-21 Verrouillage de connexion pour un appareil de coupure electrique
CN201180035988XA CN103180925A (zh) 2010-07-23 2011-07-21 用于电开关装置的开关锁
EP11735436.5A EP2596510B1 (fr) 2010-07-23 2011-07-21 Verrouillage de connexion pour un appareil de coupure électrique
US13/811,412 US20130118872A1 (en) 2010-07-23 2011-07-21 Switch latch for an electrical switching device
PCT/EP2011/062567 WO2012010670A1 (fr) 2010-07-23 2011-07-21 Verrouillage de connexion pour un appareil de coupure électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10170685A EP2410548A1 (fr) 2010-07-23 2010-07-23 Mécanisme de commande pour un commutateur électrique

Publications (1)

Publication Number Publication Date
EP2410548A1 true EP2410548A1 (fr) 2012-01-25

Family

ID=43304644

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10170685A Withdrawn EP2410548A1 (fr) 2010-07-23 2010-07-23 Mécanisme de commande pour un commutateur électrique
EP11735436.5A Not-in-force EP2596510B1 (fr) 2010-07-23 2011-07-21 Verrouillage de connexion pour un appareil de coupure électrique

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP11735436.5A Not-in-force EP2596510B1 (fr) 2010-07-23 2011-07-21 Verrouillage de connexion pour un appareil de coupure électrique

Country Status (5)

Country Link
US (1) US20130118872A1 (fr)
EP (2) EP2410548A1 (fr)
CN (1) CN103180925A (fr)
CA (1) CA2806128A1 (fr)
WO (1) WO2012010670A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10504668B1 (en) 2018-08-06 2019-12-10 Carling Technologies, Inc. Circuit breaker with snap action contacts

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3053044A1 (fr) 2019-08-26 2021-02-26 Alpha Technologies Ltd. Inverseur bistable
CN114068228A (zh) * 2021-10-28 2022-02-18 华能通辽风力发电有限公司 一种隔离开关
US11862412B1 (en) * 2022-09-21 2024-01-02 Rockwell Automation Switzerland Gmbh System and method for reduced torque switching

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1916956A1 (de) * 1969-04-02 1970-10-15 Bosch Hausgeraete Gmbh Elektrischer Schnappschalter
US3614685A (en) 1970-02-06 1971-10-19 Westinghouse Electric Corp Circuit breaker with handle-indicating means
DE3830719A1 (de) * 1987-03-12 1990-03-22 Forbach Gmbh Elektrischer durchlauferhitzer
GB2237683A (en) * 1989-11-03 1991-05-08 Schupa Elektro Gmbh & Co Kg A switch
DE4239708A1 (de) * 1992-11-26 1994-06-01 Abb Patent Gmbh Elektrisches Schaltgerät
WO2003009324A1 (fr) 2001-07-14 2003-01-30 Moeller Gmbh Verrou de connexion destine a des appareils de commutation multipolaires
DE102006059307B3 (de) 2006-12-15 2008-02-21 Moeller Gmbh Elektrisches Schaltgerät

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH673175A5 (fr) * 1987-07-22 1990-02-15 Bbc Brown Boveri & Cie
CN2417548Y (zh) * 2000-02-17 2001-01-31 新巨企业股份有限公司 改良的开关结构
DE10133879B4 (de) * 2001-07-12 2004-07-08 Siemens Ag Schaltgerät mit einem Schaltschloss
CN1293581C (zh) * 2004-08-10 2007-01-03 浙江正泰电器股份有限公司 一种双撞击快速开关装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1916956A1 (de) * 1969-04-02 1970-10-15 Bosch Hausgeraete Gmbh Elektrischer Schnappschalter
US3614685A (en) 1970-02-06 1971-10-19 Westinghouse Electric Corp Circuit breaker with handle-indicating means
DE3830719A1 (de) * 1987-03-12 1990-03-22 Forbach Gmbh Elektrischer durchlauferhitzer
GB2237683A (en) * 1989-11-03 1991-05-08 Schupa Elektro Gmbh & Co Kg A switch
DE4239708A1 (de) * 1992-11-26 1994-06-01 Abb Patent Gmbh Elektrisches Schaltgerät
WO2003009324A1 (fr) 2001-07-14 2003-01-30 Moeller Gmbh Verrou de connexion destine a des appareils de commutation multipolaires
DE102006059307B3 (de) 2006-12-15 2008-02-21 Moeller Gmbh Elektrisches Schaltgerät

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10504668B1 (en) 2018-08-06 2019-12-10 Carling Technologies, Inc. Circuit breaker with snap action contacts
EP3608933A1 (fr) * 2018-08-06 2020-02-12 Carling Technologies Inc. Disjoncteur avec contacts à action rapide

Also Published As

Publication number Publication date
EP2596510A1 (fr) 2013-05-29
EP2596510B1 (fr) 2017-05-31
CN103180925A (zh) 2013-06-26
WO2012010670A1 (fr) 2012-01-26
CA2806128A1 (fr) 2012-01-26
US20130118872A1 (en) 2013-05-16

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