EP0847070A2 - Disjoncteur de surintensité, en particulier disjoncteur pour moteur - Google Patents

Disjoncteur de surintensité, en particulier disjoncteur pour moteur Download PDF

Info

Publication number: EP0847070A2
Authority: EP; European Patent Office
Prior art keywords: switch; lever; switched; pawl; overcurrent protection
Prior art date: 1996-02-06
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.): Granted

Application number

EP96120845A

Other languages

German (de)

English (en)

Other versions

EP0847070A3 (fr

EP0847070B1 (fr

Inventor

Hans-Peter Meili

Karin Spengler

Stephan Spengler

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.)

Rockwell Automation Switzerland GmbH

Original Assignee

Rockwell Automation AG

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.)

1996-02-06

Filing date

1996-12-23

Publication date

1998-06-10

1996-12-23 Application filed by Rockwell Automation AG filed Critical Rockwell Automation AG

1998-06-10 Publication of EP0847070A2 publication Critical patent/EP0847070A2/fr

1998-11-04 Publication of EP0847070A3 publication Critical patent/EP0847070A3/fr

2002-06-12 Application granted granted Critical

2002-06-12 Publication of EP0847070B1 publication Critical patent/EP0847070B1/fr

2016-12-23 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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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
- H01H71/10—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 overcurrent protection switch, in particular Motor protection switch with fixed contact pieces housed in a housing and this in the ON position of the overcurrent protection switch for each phase bridging, under the action of at least one opening spring, movable contact pieces, either with a manual override or switch lock that can be actuated by overcurrent release elements, the one from a knee lever bracket and from a shift bracket formed pair of toggle levers on the movable contact pieces guided in the housing acts, the end region facing away from the knee joint of the pair of toggle levers the toggle lever bracket on a swivel mounted in the housing in the switch-on position to one that can be influenced by the overcurrent release elements Release pawl supporting pawl is pivoted and the Manual control device with the knee joint of the pair of knee levers in operative connection stands.
an overcurrent protection switch in particular Motor protection switch with fixed contact pieces housed in a housing and this in the ON position of the overcurrent protection switch for each phase bridging, under the action of at least one opening spring,
An overcurrent protection switch of the type mentioned is from DE-C1-4304769 known.
the switch tab is closer to the movable one Contact pieces.
the Tip of the V-shaped latch lever is supported in the on position of the Overcurrent protection switch on a detachable by overcurrent release elements Jack off.
the object of the present invention is the overcurrent protection switch mentioned above to simplify and improve, so that a quick Switching off both with an overcurrent release and with a manual switch-off on the operating speed of the manual operating device independently, with the same individual parts in an economically advantageous manner reached and tripping by overcurrent and tripping by hand by two different positions of the manual control device from can be determined outside.
the task is solved in that the hinge axes of the shift tab and the toggle lever bracket and the pivot bearing axis of the ratchet lever in the on position of the overcurrent protection switch in one direction on one slightly curved line so that the switch tab that Knee lever bracket and the ratchet lever in the over-center position, in an extended position Position are cocked by the switch-off spring, with the latch lever on the release pawl and that between the switch plate and the knee lever plate Support the horizontal knee joint on a detachably latched stop slide and the latch lever of this in the on position of the overcurrent protection switch assumed position in both directions around the pivot bearing axis is designed to be pivotable, of which in one direction after actuation the release pawl and in the other direction after releasing the latch of the Stop slide by actuating the manual actuation device from the Einin the off position and that the manual control device with the Knee joint of the pair of toggle levers over at least one during a switch-on movement effective hand surface in operative connection of the manual operating device stands
the bidirectionally effective ratchet lever can be achieved with the same components both with overcurrent tripping and A quick interruption of the contact points even when switching off manually.
the manual control device takes over after triggering by overcurrent different position than after a manual switch off, because the ratchet lever at an overcurrent release the knee joint and also the one connected with it Do not let the manual control device bend as far as when switching it off manually.
the latch lever is advantageously designed with two arms and has one the latch lever in its off position of the overcurrent protection switch existing rest position from the release latch keeping spaced Torsion spring on.
the two-arm design of the ratchet lever is the Realization of the support of the ratchet lever in the on position of the Overcurrent protection switch on the release jack simple.
the torsion spring ensures making sure that the latch lever is in the relaxed position, in the off position of the overcurrent protection switch remains in the standby position.
the release pawl can be used with one of these in the rest position in the pawl lever locking position holding torsion spring.
the in the The release pawl is in the relaxed position thanks to this torsion spring Stand by position.
the manual control device can have two opposite surfaces having, two-pronged, pivoting shift fork in connection, one of the opposite inner surfaces of the shift fork the knee joint if the stop slide is blocked during a switch-off movement by hand takes from the dead center position to the pair of knee levers by buckling into the Bring the switch off position and the other inner surface when switching on the manual control device acting on the knee joint Driver surface that the knee joint in the dead center position when switched on presses.
This arrangement enables the overcurrent protection switch to be switched off even when the knee joint is in the on position supporting stop slider remains blocked for some reason.
FIG 1 is the side view of an overcurrent protection switch when removed Housing wall shown.
this figure shows only the most essential for the description of the invention Parts of the overcurrent protection switch.
the housing 1 In the housing 1 are fixed contact pieces 2 attached.
the in the on position of the overcurrent protection switch the fixed contact pieces 2, bridging movable contact pieces in phases 3 are separated from the fixed contact pieces 2 in FIG. 1, the switch is in the off position.
the movable contact pieces 3 are by at least one switch-off spring, not shown, acting on the pin 4 brought into the off position and held there.
the pins 4 are located at one end region of a pivotally mounted in the housing 1 Shift lever 5.
the other end of the shift lever 5 presses on the contact carrier 6 of the movable contact pieces 3 against the force of a closing spring 7. acts on the end portion of the shift lever 5 carrying the pin 4 Switch lock 8.
the operation of the switch lock 8 is based on the Figures 5 to 40 explained.
the key switch 8 is either by a Manual control device containing rotary knob 9 by hand or by Overcurrent release elements containing thermal and / or dynamic elements operated.
the knob 9 and its position is in that shown in Fig.2 Top view of the overcurrent protection switch that is switched off can be seen particularly well.
FIGs 5, 6 and 7 show parts of the overcurrent protection switch in the OFF position.
the housing 1, the knob 9 and the key switch 8 indicated schematically. 6 shows the position of the rotary knob 9 in the exhibition.
Fig. 7 is a clearer, schematic representation of the most important parts of the switch lock 8.
the switch lock 8 is in this Switch position relaxed.
a switching tab 10 articulated with the hinge axis 11.
the Switch tab 10 is articulated to a toggle lever tab 12, these two tabs a pair of toggle levers with the one between them Form knee joint 13.
Toggle lever bracket 12 The end region facing away from the knee joint 13 Toggle lever bracket 12 is on a in the housing 1 about the pivot bearing axis 14 in Pawl lever 15 pivotable in both directions with the articulated axis 16.
one is pivotable in the housing 1 stored release pawl 17 in connection.
the Release pawl 17 In the rest position, the Release pawl 17 the pivoting movement of the pawl lever 15 in a counterclockwise direction.
the two-armed ratchet lever 15 is in the rest position by a torsion spring 18 in a slightly spaced from the release pawl 17 Position held.
the release pawl 17 remains thanks to the torsion spring 19 in the Lock the rest position in a counterclockwise direction Position.
the rotary knob 9 is above a bevel gear, not shown with a two-armed manual control lever mounted in the housing 1 20 in a positive connection.
the manual control lever 20 has one Arm on a driver surface 21.
Detachably latchable stop slide 22 is provided to support the knee joint 13 in the Dead center position when the overcurrent protection switch (Fig. 16) is on Detachably latchable stop slide 22 is provided.
This stop slide 22 is in the unlatched position by a spring 23 loaded with the Knee joint 13 in a small area around the switch-on position in butt connection. In the switched-on position, the stop slide 22 is through the manual actuation device latched in a manner not shown. At the beginning of one Disengaging movement releases the latch, after which the stop slide 22nd is displaceable in both directions from the latched position.
the Knee joint 13 is in the direction facing away from the stop slide 22 the action of a return spring 24.
Figures 8 to 13 show the overcurrent protection switch in two intermediate positions during a switch-on movement.
the knob 9 is in by hand Turned clockwise.
the manual actuation lever 20 rotates counterclockwise until the driver surface 21 comes into engagement with the knee joint 13.
the Pawl lever 15 is supported on the release pawl 17 and thus in the further pivoting movement counterclockwise prevented.
the hinge axis 16 on the ratchet lever 15 remains immobile in relation to the housing 1. From this moment on, the driving surface 21 takes the knee joint 13 counterclockwise with.
FIG. 17 to 28 show the overcurrent protection switch in four different Intermediate positions during an opening movement.
the switch-off movement begins with the rotary knob 9 being turned counterclockwise. Then the unlatching of the stop slide, which can be clearly seen in FIG. 19 in particular 22 done by the manual control device.
the stop slide 22 is due to the action of the opening spring by the knee joint 13 in Fig. 19 shifted to the right. Once the hinge axis 16 between the toggle link 12 and the ratchet lever 15 from the dead center position shown in Fig. 19 comes out, this arrangement buckles as shown in Fig. 22, the Contact separation takes place suddenly.
the return spring 24 pulls the knee joint 13 and causes the pair of knee levers buckles (Fig. 28) and reaches the switch-off position (Fig. 7) becomes.
the two-armed manual control lever 20 has on its the bevel gear arm turned away a two-pronged shift fork with two opposite inner surfaces.
One of the surfaces is that based on FIGS. 8 to 13 Driver surface 21 already described.
the opposite surface 25 is effective in a switch-off movement when the stop slide 22 from any Remains basically blocked. In this case, the pair of toggle levers 10, 12 do not buckle and the switch-off movement cannot be carried out. In this case, the surface 25 takes this when turning the knob 9 Knee joint 13 in the direction away from the stop slide 22. After If the dead center position is exceeded, the pair of toggle levers 10, 12 buckles, as a result of which a quick contact separation is initiated.
Figures 29 to 34 show the overcurrent protection switch after tripping through the overcurrent tripping devices.
Figures 29 to 31 is the State after triggering while held and in Figures 32 to 34 Free rotary knob 9.
the overcurrent release elements When the overcurrent release elements respond, it rotates the release pawl 17 in a counterclockwise direction away from the pawl lever 15.
the switched on overcurrent protection switch Fig. 14 to 16
it means that the Support of the pawl lever 15 is lifted counterclockwise.
the knob 9 Independently that the knob 9 is held or not, the pivots Pawl lever 15 after pivoting the release pawl 17 in a counterclockwise direction.
bidirectional acting latch lever 15 can also be used to actuate a signal switch be used to trigger the overcurrent protection switch to display the trigger organs.

Landscapes

Protection Of Generators And Motors (AREA)
Switch Cases, Indication, And Locking (AREA)
Emergency Protection Circuit Devices (AREA)
Mechanical Operated Clutches (AREA)
Breakers (AREA)
Keying Circuit Devices (AREA)
Mechanisms For Operating Contacts (AREA)
Control Of Direct Current Motors (AREA)

EP96120845A 1996-02-06 1996-12-23 Disjoncteur de surintensité, en particulier disjoncteur pour moteur Expired - Lifetime EP0847070B1 (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
CH307/96		1996-02-06
CH30796		1996-02-06
CH30796		1996-02-06

Publications (3)

Publication Number	Publication Date
EP0847070A2 true EP0847070A2 (fr)	1998-06-10
EP0847070A3 EP0847070A3 (fr)	1998-11-04
EP0847070B1 EP0847070B1 (fr)	2002-06-12

Family

ID=4184023

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP96120845A Expired - Lifetime EP0847070B1 (fr)	1996-02-06	1996-12-23	Disjoncteur de surintensité, en particulier disjoncteur pour moteur

Country Status (7)

Country	Link
US (1)	US5757602A (fr)
EP (1)	EP0847070B1 (fr)
AT (1)	ATE219286T1 (fr)
DE (1)	DE59609343D1 (fr)
DK (1)	DK0847070T3 (fr)
ES (1)	ES2176394T3 (fr)
PT (1)	PT847070E (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2799573A1 (fr) *	1999-10-11	2001-04-13	Schneider Electric Ind Sa	Mecanisme de commande de disjoncteur

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0892420B1 (fr) *	1997-07-14	2005-04-27	Rockwell Automation AG	Discontacteur à maximum avec cliquet pour la protection des moteurs
US6225883B1 (en)	2000-02-15	2001-05-01	Eaton Corporation	Circuit breaker with latch and toggle mechanism operating in perpendicular planes
US6307453B1 (en)	2000-02-15	2001-10-23	Eaton Corporation	Circuit breaker with instantaneous trip provided by main conductor routed through magnetic circuit of electronic trip motor
US6688976B1 (en) *	2000-05-01	2004-02-10	Walker Digital, Llc	Systems and methods wherein a lottery number combination is associated with a limited number of occurrences
CN105632802B (zh) *	2016-03-30	2018-10-30	上海电科电器科技有限公司	操作机构的辅助机构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2123765B1 (de)	1971-05-13	1972-05-31	Ellenberger & Poensgen	Dr]ckknopfbet[tigter ]berstromschalter
DE4304769C1 (de)	1993-02-17	1994-03-31	Kloeckner Moeller Gmbh	Schaltvorrichtung für Leistungsschaltgeräte

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3212474C2 (de) *	1982-04-03	1986-02-06	Ellenberger & Poensgen Gmbh, 8503 Altdorf	Überstromschutzschalter
CH681752A5 (fr) *	1991-02-22	1993-05-14	Weber Ag
BE1004956A3 (nl) *	1991-06-20	1993-03-02	Vynckier Nv	Differentieelschakelaar.

1996
- 1996-12-23 PT PT96120845T patent/PT847070E/pt unknown
- 1996-12-23 ES ES96120845T patent/ES2176394T3/es not_active Expired - Lifetime
- 1996-12-23 EP EP96120845A patent/EP0847070B1/fr not_active Expired - Lifetime
- 1996-12-23 DE DE59609343T patent/DE59609343D1/de not_active Expired - Lifetime
- 1996-12-23 AT AT96120845T patent/ATE219286T1/de not_active IP Right Cessation
- 1996-12-23 DK DK96120845T patent/DK0847070T3/da active
1997
- 1997-01-29 US US08/790,496 patent/US5757602A/en not_active Expired - Lifetime

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2123765B1 (de)	1971-05-13	1972-05-31	Ellenberger & Poensgen	Dr]ckknopfbet[tigter ]berstromschalter
DE4304769C1 (de)	1993-02-17	1994-03-31	Kloeckner Moeller Gmbh	Schaltvorrichtung für Leistungsschaltgeräte

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2799573A1 (fr) *	1999-10-11	2001-04-13	Schneider Electric Ind Sa	Mecanisme de commande de disjoncteur
EP1093145A1 (fr) *	1999-10-11	2001-04-18	Schneider Electric Industries SA	Mécanisme de commande de disjoncteur
US6307455B1 (en)	1999-10-11	2001-10-23	Schneider Electric Industries Sa	Control mechanism for a circuit breaker

Also Published As

Publication number	Publication date
EP0847070A3 (fr)	1998-11-04
ES2176394T3 (es)	2002-12-01
DE59609343D1 (de)	2002-07-18
PT847070E (pt)	2002-11-29
US5757602A (en)	1998-05-26
DK0847070T3 (da)	2002-07-15
EP0847070B1 (fr)	2002-06-12
ATE219286T1 (de)	2002-06-15

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