EP0795187B1 - Schaltschloss für ein niederspannungs-schaltgerät - Google Patents
Schaltschloss für ein niederspannungs-schaltgerät Download PDFInfo
- Publication number
- EP0795187B1 EP0795187B1 EP95939272A EP95939272A EP0795187B1 EP 0795187 B1 EP0795187 B1 EP 0795187B1 EP 95939272 A EP95939272 A EP 95939272A EP 95939272 A EP95939272 A EP 95939272A EP 0795187 B1 EP0795187 B1 EP 0795187B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lock
- lever
- toggle
- release lever
- release
- 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.)
- Expired - Lifetime
Links
- 230000009471 action Effects 0.000 claims description 3
- 210000002414 leg Anatomy 0.000 description 7
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
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
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
-
- 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
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
- H01H71/525—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism comprising a toggle between cradle and contact arm and mechanism spring acting between handle and toggle knee
-
- 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 a Low voltage switchgear, especially one Circuit breaker or switch disconnector, with housing with a by means of a control panel for the purpose of input and Turn off movable pivoted in the housing Shifting gate, with two on one axis connected toggle levers that are pivotable against the Force action of a lock spring are stored, the pivotable end of the toggle lever axis Toggle lever on a shift shaft rotatably mounted in the housing, which is equipped with movable contact pieces is, and wherein the lock spring between the shift gate and Toggle lever axis is arranged.
- Switch locks of the generic type are for example known from DE 42 27 213 A1.
- switch locks are more well known Construction, as known for example from DE 42 27 213 A1, the tipping point for switching on the key switch by the lock spring, under the force of which Knee levers are mounted on the support lever due to friction and manufacturing tolerances, even in unwanted areas. Scatters the tipping point towards “ early ", it may happen that the spring preload of the Lock spring is not sufficient to use the selector shaft through the contacts. This in turn can faulty contacts in the switchgear itself and thus errors in the electrical behavior of the connected Systems. Because also depending on the position of the rocker arm of the key switch auxiliary devices, for example Auxiliary switches that are actuated make heavy scattering difficult the tipping point, i.e. the temporal and logical coordination the control points of the auxiliary facilities.
- the invention has for its object a higher Allow contact force without making a stronger one Need lock spring.
- This task is carried out in a generic switch lock solved in that a rotatable about a fixed axis under the force of a biasing spring Release lever is provided which by means of at least one Latching stop in the movement path of the selector shaft intervenes and the release of the movement path by activation the release lever is done using the control panel, such that when switching on by means of the control panel the movement of the selector shaft to close the contacts first after the theoretical tipping point has been exceeded Lock spring is released.
- a preloaded release lever is therefore used provided with a latching surface - latching stop the control shaft, which includes the contact apparatus - locks.
- This release lever is dependent on the Position of the control unit controlled, i.e. Approved, in such a way that the release only after exceeding the theoretical tipping point of the lock spring.
- Switching shaft latched beyond the theoretical tipping point and the release takes place only via the movement of the Control panel, i.e. with progressive movement of the Control panel using one with the movement of the control panel coupled stop bar, at the desired time and the position of the key switch releases the release lever and allows the contacts to be switched on via the control shaft.
- control panel for example Rocker arm of the switching device, if this as a toggle switch is formed, or the control handle of a rotary drive be used.
- the invention enables the tipping point to Switching on the control shaft by coordinating the paths stabilize the shift gate with the release lever, i.e. to narrow it down to a narrow tolerance so that it depends on it Functions such as auxiliary switches, undervoltage releases can be interpreted more reliably.
- the invention enables switching on by switching the transfer of the tipping point over the theoretical tipping point out backwards, i.e. the safe switching on of the contacts takes place later. In this way, the certainty that in particular leading auxiliary switches are switched on have to be switched before reaching the tipping point, because there is more time to switch on the auxiliary switches Available.
- the invention therefore saves time by laying of the tipping point to the rear, which is both positive for the safe switching of auxiliary switches as well Undervoltage releases.
- the release lever rotates around the fixed axis around which the support lever is pivotally mounted is arranged in the switch lock.
- Shifting gate, Support lever, release lever have approximately U-shaped shape and are thus easy to arrange and move against each other.
- the toggle also forms in the essentially connecting through the two levers Axis a U-shape, which included that of the shift gate Space can be used and is movable.
- the latching surface between the release lever and selector shaft which is the premature movement of the shift shaft and closing the Prevent contacts when switching on is preferred on a cam formed on the selector shaft by means of a radial direction protruding at least one stop lug trained with the at least one latching stop of the release lever cooperates.
- Fig. 1 the switching lock 1 is shown as it Part of a circuit breaker in a not shown Molded housing is used.
- the key switch is without that Switching shaft carrying movable contacts shown.
- the Switch lock 1 consists of the two side lock plates 21 with which it is in the mold housing, not shown is fixed.
- the switch lock 1 includes the Shifting gate 11, which is U-shaped and with the two U-legs in a bearing 27 of the lock plate 21st is pivotally mounted, and two toggle levers 19, which by means the toggle lever axis 13 are firmly connected to each other helical lock spring 12 and the Latching device with pawl lever 23, pawl spring 24 and pawl 25 and the release lever 16 with biasing spring 17, see Figs. 2 and 3, for the release of the not shown Selector shaft.
- the shifting gate 11 designed essentially U-shaped with the two side Legs llc and llb in the recess 27 of the Lock plates 1 are pivotally mounted in the direction of arrow P1.
- the rocker arm 11a is formed above.
- the U-shaped support lever 22 is within the shifting gate 11 arranged and supported with two side legs pivotable against the force of the lock spring 12 on two bearing rivets attached to the inside of the lock plates 21 29 from which a fixed axis for pivoting the Form support lever 22.
- the support lever 22 is from the Gear shift from the triggered to the switched off Position moved.
- the two same toggle levers 19 are with one end firmly connected to the toggle lever axis 13 and kept at a distance.
- the lock spring engages in the middle of the Toggle axis 13, see bearing 12b, and with her other end, see bearing 12a, in the upper area of the Shift gate 11 on.
- the pawl 25 can be pivoted laterally in the lock plates 21 stored.
- the pawl lever 23 is also with lateral Projections in recesses 26 in the lock plates 21 pivoted.
- the helical pawl spring 24 is suspended between pawl 25 and pawl lever 23 under slight tension.
- the support lever 22 has one in the middle of the U-shaped Area projecting arm 22a on which one Locking surface 221 is formed, which in turned off and in the on state of the Switch lock 1 in operative connection with the Latching device stands.
- the latching device is described by way of example in DE 42 27 213 A1.
- the control shaft not shown, which the contact arms with the movable contact pieces is on the housing of the Circuit breaker rotatably mounted and through the bearing points 28 of the lock plates 21 out.
- the release lever 16 with one as in FIGS. 7a-c shown shape is also on the fixed axis 29 forming bearing rivets, which on the lock plates 21 are mounted on the inside, rotatably mounted.
- the bias spring 17 for example, the second on the housing Has abutment.
- the bias spring 17 facing away Side i.e. the side facing the selector shaft, the Release lever 16 on the latching stops 161.
- the control panel of the shift gate namely the rocker arm 11a is firmly connected to a rocker arm holder 10.
- Rocker arm holder 10 has a on its underside Stop bar 10a with which he is in a certain position the pivoting movement P1 of the shift gate 11 in operative connection with the release lever, i.e. with the stop projection 162 occurs.
- the axis X of the lock spring 12, determined by their Bearing points 12a, 12b on the shift gate or Toggle axis 13 changes its position depending on the position of the Rocker arm 11a, i.e. the position of the shift gate.
- the toggle lever axis 13 is guided in a bearing 30 which the shift shaft, not shown, is formed.
- a storage track i.e. the toggle axis 13 is moveable and it moves with the movement the shift gate in the cam track, as well as from one Comparison of FIGS. 2 and 3 can be seen.
- the release lever 16 also has a substantially U-shaped Build up with side legs 164 over one Connecting web 162 which is also the stop web for the Establish the operative connection with the stop bar of the Control panel, i.e. Rocker arm holder forms.
- 6a-6d is the functional sequence of the key switch shown schematically with release lever and contact system, the latching device including Support lever parts have been omitted from the Consideration.
- FIG. 6a shows the off position of the key switch.
- the contact arms 71 which carry the movable contact pieces 70 and the Fixed stationary contact pieces 80 are shown.
- the selector shaft 20 there are two protruding cams 15 formed, each with a cam slot 14 are formed, the cam track for the guided therein Toggle lever axis 13 forms.
- the circumference of the cams is one-sided the protruding stop lug 151 is formed at one point, with the latching stops 161 of the release lever 16 enters into active connection.
- the off position shown Fig. 6a is the release lever 16 under the Bias of the bias spring 17 is not in active contact with the Shift shaft 20.
- Fig. 6b shows the position when the theoretical tipping point is reached the lock spring 12. In this position the release lever occurs 16 with the selector shaft 20 in operative connection by the Latching stop 161 on the stop lug 151 of the Shift shaft strikes and thus a movement of the shift shaft locks in the direction of arrow P3.
- the Emigration of the release lever 16 in the arrow direction P is thereby causes the stop web 10a on the underside of the rocker arm holder 10 of the control panel when the Switching gate 11 in the direction of arrow P2 on the stop bar 162 of the release lever 16 hits and takes this, whereby the Release of the stop lug 151 at the other end of the Release lever 16 takes place in the area of the web 161.
- the control shaft 20 is in the direction of the arrow P3, see Fig. 6d, suddenly under the effect of Move the lock spring 12 and close the contacts 70, 80, and with increased contact pressure.
- FIGS. 6b and 6c show that there is a difference between theoretical tipping point and controlled tipping point (position with respect to the axes X of the lock spring 12) is present and the difference in the distance between these two Tipping point positions includes moving the tipping point to the rear, which increases the security of switching the lock becomes.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Electronic Switches (AREA)
- Lock And Its Accessories (AREA)
- Keying Circuit Devices (AREA)
- Mechanisms For Operating Contacts (AREA)
Description
- Fig. 1
- perspektivische Ansicht des Schaltschlosses mit abgehobenem Kipphebelhalter
- Fig. 2
- schematisierte Seitenansicht des Schaltschlosses nach Fig. 1 im eingeschalteten Zustand
- Fig. 3
- schematisierte Seitenansicht des Schaltschlosses nach Fig. 1 im ausgeschalteten Zustand ohne Klinkenhebeleinrichtung
- Fig. 4
- rechte Seitenansicht B von Fig. 3
- Fig. 5
- rechte Seitenansicht A von Fig. 2
- Fig. 6a-d
- schematische Darstellung der Funktion des Schaltschlosses in den verschiedenen Schaltstellungen von Aus, theoretischer Kippunkt, reeller Kippunkt und Ein
- Fig. 7a-c
- Darstellung des Freigabehebels in drei Ansichten.
Claims (4)
- Schaltschloß (1) für ein Niederspannungs-Schaltgerät, insbesondere einen Leistungsschalter oder einen Lasttrennschalter, mit Gehäuse mit einer mittels eines Bedienteiles zwecks Ein- und Ausschalten bewegbaren schwenkbar im Gehäuse gelagerten Schaltkulisse (11), mit zwei über einer Achse miteinander verbundenen Kniehebeln (19), die schwenkbar entgegen der Kraftwirkung einer Schloßfeder (12) gelagert sind, wobei das verschwenkbare, die Kniehebelachse umfassende Ende der Kniehebel an einer im Gehäuse drehbar gelagerten Schaltwelle (20), die mit bewegbaren Kontaktstücken (70) ausgestattet ist, angelängt ist, und wobei die Schloßfeder zwischen Schaltkulisse und Kniehebelachse (13) angeordnet ist, dadurch gekennzeichnet, daß ein um eine ortsfeste Achse (29) drehbarer unter der Krafteinwirkung einer Vorspannfeder (17) stehender Freigabehebel (16) vorgesehen ist, der mittels mindestens eines Verklinkungsanschlages (161) in die Bewegungsbahn der Schaltwelle (20) eingreift und die Freigabe der Bewegungsbahn durch Ansteuern des Freigabehebels (16) mittels des Bedienteils (11a) erfolgt, dergestalt, daß beim Einschaltvorgang mittels des Bedienteils (11a) die Bewegung der Schaltwelle (20) zum Schließen der Kontakte (70,80) erst nach Überschreiten des theoretischen Kippunktes der Schloßfeder (12) freigegeben wird.
- Schaltschloß nach Anspruch 1, dadurch gekennzeichnet, daß der Freigabehebel (16) drehbar um die ortsfeste Achse (29), um die ein durch die Schaltkulisse (11) mitnehmbarer und mit seinem freien Ende (221) mit einer Verklinkungseinrichtung (22, 23, 24) zusammenwirkender Stützhebel (22) schwenkbar gelagert ist, angeordnet ist.
- Schaltschloß nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß an mindestens einem an der Schaltwelle (20) angeformten Nocken (15) in radialer Richtung vorstehend eine Anschlagnase (151) ausgebildet ist, die mit dem Verklinkungsanschlag (161) des Freigabehebels (16) zusammenwirkt.
- Schaltschloß nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Kipphebel (11a) der Schaltkulisse (11) mit einem Kipphebelhalter (10) fest verbunden ist, der an seiner Unterseite einen vorstehenden Anschlagsteg (10a) aufweist, der bei Erreichen der gewünschten Freigabeposition der Bewegungsbahn der Schaltwelle (20) zum Schließen der Kontakte (70, 80) an dem Freigabehebel (16) anschlägt und diesen mitnimmt, wodurch die Verklinkung zwischen Freigabehebel (16) und Schaltwelle (20) gelöst wird.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4442417 | 1994-11-29 | ||
DE4442417A DE4442417C1 (de) | 1994-11-29 | 1994-11-29 | Schaltschloß für ein Niederspannungs-Schaltgerät |
PCT/EP1995/004461 WO1996017368A1 (de) | 1994-11-29 | 1995-11-14 | Schaltschloss für ein niederspannungs-schaltgerät |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0795187A1 EP0795187A1 (de) | 1997-09-17 |
EP0795187B1 true EP0795187B1 (de) | 1998-07-08 |
Family
ID=6534427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95939272A Expired - Lifetime EP0795187B1 (de) | 1994-11-29 | 1995-11-14 | Schaltschloss für ein niederspannungs-schaltgerät |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0795187B1 (de) |
JP (1) | JPH10508150A (de) |
CN (1) | CN1047685C (de) |
AT (1) | ATE168222T1 (de) |
DE (2) | DE4442417C1 (de) |
ES (1) | ES2121434T3 (de) |
HK (1) | HK1004841A1 (de) |
WO (1) | WO1996017368A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1008731C2 (nl) * | 1998-03-27 | 1999-09-28 | Holec Holland Nv | Schakelaar met moment-inschakeling. |
ITMI20011066A1 (it) * | 2001-05-22 | 2002-11-22 | Gewiss Spa | Interuttore elettrico magnetotermico scatolato |
DE20111726U1 (de) * | 2001-07-14 | 2002-12-05 | Moeller GmbH, 53115 Bonn | Schaltschloss für mehrpolige elektrische Schaltgeräte |
PL1816665T3 (pl) * | 2006-02-03 | 2010-02-26 | Hager Electro Sas | Mechanizm zamka z osią ruchomą |
AT509280A1 (de) | 2008-03-05 | 2011-07-15 | Moeller Gebaeudeautomation Gmbh | Schaltgerät |
AT509250A1 (de) | 2008-03-05 | 2011-07-15 | Moeller Gebaeudeautomation Gmbh | Schaltgerät |
FR2939238B1 (fr) * | 2008-11-28 | 2011-01-14 | Hager Electro Sas | Mecanisme d'articulation pour serrure de declenchement d'appareil electrique de coupure de ligne du type disjoncteur. |
ITMI20090010A1 (it) * | 2009-01-08 | 2010-07-09 | Abb Spa | Dispositivo di interruzione per impianti di bassa tensione |
EP2629315A1 (de) * | 2012-02-14 | 2013-08-21 | Eaton Industries GmbH | Betätigungsmechanismus für Leistungsschaltgeräte |
CN104916479B (zh) * | 2015-06-30 | 2017-05-31 | 重庆长安汽车股份有限公司 | 一种电动汽车用安全开关 |
CN106935451B (zh) * | 2015-12-30 | 2019-04-30 | 三信国际电器上海有限公司 | 一种合闸装置及具有该装置的剩余电流动作断路器 |
DE102016217106A1 (de) * | 2016-09-08 | 2018-03-08 | Siemens Aktiengesellschaft | Schaltschloss für einen elektrischen Schalter und elektrischer Schalter mit solch einem Schaltschloss |
EP3557604B1 (de) * | 2018-04-20 | 2023-09-27 | ABB S.p.A. | Niederspannungsschaltvorrichtung |
US11437202B2 (en) * | 2020-06-29 | 2022-09-06 | Rockwell Automation Switzerland Gmbh | Switching device with lock open component |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1130036B (de) * | 1960-09-10 | 1962-05-24 | Siemens Ag | Antrieb fuer elektrische Schalter |
US3562469A (en) * | 1968-11-18 | 1971-02-09 | Square D Co | Molded-case electric circuit breaker with contact arm latch |
KR910006799B1 (ko) * | 1987-09-26 | 1991-09-02 | 미쓰비시전기 주식회사 | 차단기의 조작기구 |
FR2686453B1 (fr) * | 1992-01-17 | 1994-04-08 | Legrand | Interrupteur differentiel. |
DE4227213C2 (de) * | 1992-08-17 | 1995-08-31 | Kloeckner Moeller Gmbh | Schaltschloß für einen Leistungsschalter |
-
1994
- 1994-11-29 DE DE4442417A patent/DE4442417C1/de not_active Expired - Fee Related
-
1995
- 1995-11-14 JP JP8518121A patent/JPH10508150A/ja active Pending
- 1995-11-14 WO PCT/EP1995/004461 patent/WO1996017368A1/de active IP Right Grant
- 1995-11-14 DE DE59502785T patent/DE59502785D1/de not_active Expired - Lifetime
- 1995-11-14 EP EP95939272A patent/EP0795187B1/de not_active Expired - Lifetime
- 1995-11-14 AT AT95939272T patent/ATE168222T1/de not_active IP Right Cessation
- 1995-11-14 ES ES95939272T patent/ES2121434T3/es not_active Expired - Lifetime
- 1995-11-14 CN CN95196460A patent/CN1047685C/zh not_active Expired - Fee Related
-
1998
- 1998-03-27 HK HK98102626A patent/HK1004841A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ES2121434T3 (es) | 1998-11-16 |
CN1047685C (zh) | 1999-12-22 |
JPH10508150A (ja) | 1998-08-04 |
HK1004841A1 (en) | 1998-12-11 |
ATE168222T1 (de) | 1998-07-15 |
WO1996017368A1 (de) | 1996-06-06 |
EP0795187A1 (de) | 1997-09-17 |
CN1166889A (zh) | 1997-12-03 |
DE4442417C1 (de) | 1996-02-15 |
DE59502785D1 (de) | 1998-08-13 |
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