EP1407466A1 - Switch lock for multipole electrical switchgear - Google Patents
Switch lock for multipole electrical switchgearInfo
- Publication number
- EP1407466A1 EP1407466A1 EP02753079A EP02753079A EP1407466A1 EP 1407466 A1 EP1407466 A1 EP 1407466A1 EP 02753079 A EP02753079 A EP 02753079A EP 02753079 A EP02753079 A EP 02753079A EP 1407466 A1 EP1407466 A1 EP 1407466A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- axis
- lever
- side panels
- switch lock
- support lever
- 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.)
- Granted
Links
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
- 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
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/18—Movable parts; Contacts mounted thereon
- H01H21/22—Operating parts, e.g. handle
- H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
Definitions
- the invention relates to a switch lock for multi-pole electrical switching devices, such as circuit breakers and disconnectors, according to the preamble of the independent claims.
- the key switch consists of a U-shaped drive lever with its outer legs tiltably mounted in fixed side panels and an operating handle, a toggle mechanism with an upper toggle lever, a lower toggle lever and a spring mechanism, and a support lever which is pivoted between the side panels ,
- the toggle levers are articulated to one another via a toggle lever axis.
- the spring-loaded mechanism engages between the toggle axis and the drive lever.
- the lower toggle is articulated to a selector shaft.
- the switching shaft carries movable contact arrangements with one-armed movable contacts which can be pivoted against the action of contact pressure springs within the so-called stroke.
- the support lever is articulated to the upper toggle lever.
- the switching lock can be reset by bringing the support lever beyond its off position into a supporting connection under the action of the spring force accumulator by transferring the drive lever to a latching mechanism that is operatively connected to the release means.
- a switch lock in such a way that it results in a switch lock without triggering a disconnector.
- the latching mechanism is omitted on the one hand and the support lever is fixed on the other hand.
- the disadvantage here is that additional components are required to fix the support lever. Presentation of the invention
- the invention is therefore based on the object of being able to carry out a conversion from a switch lock with triggering into a switch lock without triggering without additional parts.
- the solution is that one and the same physical axis performing a certain function in a triggerable switch lock in a first position serves for fixing the support lever in a second position that is not capable of triggering in a trigger lock that is different from the first position.
- the proposed solution eliminates the previous need to use additional parts when installing a trigger lock that is not capable of triggering, which is used in particular for a disconnector.
- Another axle positioned in the side panels fixes the support lever in a second position between the side panels.
- the displaceable axis is expediently used as a bearing axis within the latching mechanism, as a stop axis relative to the support lever or as a distance axis designed for the side panels.
- the at least partially identical design of the displaceable axes leads to an additional reduction in parts.
- Fig. 4 a third embodiment of the switch lock according to the invention.
- a three-pole switching device 2 designed as a low-voltage circuit breaker is provided with a double housing.
- Each of the three poles is assigned a fixed contact arrangement with two fixed contact rails 4 and 6, a movable contact arrangement 8 in the form of a rotationally symmetrical pivotable contact bridge and two arc quenching chambers 10, which are arranged together in a switch chamber housing, consisting of an upper part 11 and a lower part 12 ,
- Each movable contact arrangement 8 is mounted in a switching shaft section 14, which in turn is mounted in the switching chamber housing 11, 12.
- the three shift shaft sections 14, which are pivotable about a shift shaft axis 13, are connected to one another in a rotationally fixed manner via two connecting elements 15.
- the three switching shaft sections 14 and the two connecting elements 15 form a switching shaft 16 common to all poles.
- the fixed contact arrangements 4 and 6, the movable contact arrangements 8 and the switching shaft 16 form the three-pole contact system 17 of the switching device 2.
- the construction of such a contact system and its installation and storage in such a switching chamber housing can be found in detail in the document EP1037239A2.
- the selector shaft 16 is coupled to a switch lock 7, which is used to close, open and trigger the contact system 17 and is located above the central pole. is arranged.
- the lower part 12, the upper part 11 and the switch lock 7 are non-positively connected to one another via common fastening means in the form of screws 20 and threaded receptacles 21 which are arranged in double-sided side panels 19 of the switch lock 7.
- the switching chamber housing 11, 12 and the switching lock 7 are arranged in a switching device housing consisting of a base part 22 and a cover part 24.
- the cover part 22 is provided with a cutout 26 through which a drive lever 28 of the switching lock 7, which is provided with an arcuate cover 29, projects outwards with an actuating handle 23.
- the base part 22 is screwed to the cover part 24, the cover 29 being located below the cover part 24.
- the U-shaped drive lever 28 of the releasable switch locks 72a, 73a and 74a provided for circuit breakers is tiltably supported on bearing pins 25 with its outer legs 18, which are attached to the fixed side panels 19 ,
- the drive lever 28 assumes an on position when the contact system is closed and an off position or a tripped position when the contact system is open, which are offset clockwise with respect to the on position shown.
- the switch lock 72a, 73a and 74a contains a toggle lever mechanism 27, which cannot be seen in detail, from a spring force accumulator and upper and lower toggle levers connected to it.
- the more detailed structure of such a toggle mechanism is known from the above-mentioned US-3614685-A.
- the switching lock 72a, 73a and 74a also include a latching mechanism 54 which is operatively connected to release means (not shown) and a support lever 58 which is pivotably mounted between the side panels 19 on a support lever axis 56.
- the support lever 58 is articulated to the upper toggle levers. Under the force of the spring force accumulator, the support lever 58 is supported against a pawl lever 52 of the pawl mechanism 54 via its own latching surface.
- the trigger locks shown in FIGS. 2b, 3b and 4b and provided for isolating switches differ from the switch locks described above
- Switch locks 72b, 73b and 74b essentially in that, on the one hand, no latching mechanism is provided and, on the other hand, the support lever 58 is immovably supported by an axis inserted between the side panels 19 in addition to the already existing support lever axis 56.
- This additional axis which is yet to be explained in more detail, is free of play through an opening 32, 33 or 34 of the
- a first axis 42 arranged displaceably between the drive lever 28 and the side panels 19 is provided for said axis.
- the first axis 42 is in a first position in the triggerable switch lock 72a according to FIG. 2a on both sides in first bores 62 of the FIG
- the outer leg 18 of the U-shaped drive lever 28 is fixed and is used here to limit the pivoting movement of the drive lever 28 after a triggering process relative to the support lever 58 released by the latching mechanism 54.
- Support lever 58 guided and fixed on both sides in second bores 82 of the side panels 19.
- the first axis 42 is expediently fixed in the first and second bores 62 and 82 by riveting.
- a further axis in the form of a stop axis 43 which is arranged displaceably within the side panels 19 is provided for the said axis.
- the stop axis 43 is in a first position on the releasable switch lock 73a according to FIG. 3a on both sides in another
- Bores 63 of the side panels 19 are fixed and serve here to limit the pivoting movement of the support lever 58 released by the latching mechanism 54 during a triggering process.
- the same stop axis 43 is guided in a second position in the case of the non-releasable switch lock 73b according to FIG. 3b through the opening 33 of the support lever 58 and on both sides in the second
- the definition of the stop axis 43 in the further or second bores 63 or 83 is expediently carried out by riveting.
- a further axis in the form of a pawl axis 44 which is displaceably arranged between the side panels 19, is provided for said axis.
- the pawl axis 44 is fixed in a first position in the triggerable switch lock 74a according to FIG. 4a on both sides in further bores 64 of the side panels 19 and serves here as the bearing axis of the pawl 55 belonging to the latching mechanism 54.
- the latching mechanism 54 also has a latch lever axis 44 ' , which serves as a bearing axis for the pawl lever 52 of the pawl mechanism 54 and as a spacer axis for the side panels 19 and is fixed on both sides in further bores 64 'of the side panels 19 in the triggerable switch lock 74a according to FIG. 4a.
- the bearing axis 44 or 44 ' is guided in a second position in the case of the non-releasable switch lock 74b according to FIG. 4b through the opening 34 of the support lever 58 and is fixed on both sides in second bores 84 of the side panels 19.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20111726U DE20111726U1 (en) | 2001-07-14 | 2001-07-14 | Switch lock for multipole electrical switching devices |
DE20111726U | 2001-07-14 | ||
PCT/EP2002/007448 WO2003009324A1 (en) | 2001-07-14 | 2002-07-05 | Switch lock for multipole electrical switchgear |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1407466A1 true EP1407466A1 (en) | 2004-04-14 |
EP1407466B1 EP1407466B1 (en) | 2005-04-27 |
Family
ID=7959322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02753079A Expired - Lifetime EP1407466B1 (en) | 2001-07-14 | 2002-07-05 | Switch lock for multipole electrical switchgear |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1407466B1 (en) |
DE (2) | DE20111726U1 (en) |
WO (1) | WO2003009324A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI116864B (en) | 2004-01-19 | 2006-03-15 | Abb Oy | Modular switchgear |
ITBG20050024A1 (en) | 2005-05-13 | 2006-11-14 | Abb Service Srl | SWITCH INSTALLABLE ACCORDING TO DIFFERENT OPERATIONAL CONFIGURATIONS |
DE102006059307B3 (en) * | 2006-12-15 | 2008-02-21 | Moeller Gmbh | Electrical switching device e.g. power switch and separation switch, has auxiliary axle inserted for formation of device as one-way circuit breaker, where upper and lower levers are connected with each other by axle in flexible manner |
JP4821793B2 (en) * | 2008-03-31 | 2011-11-24 | 三菱電機株式会社 | Circuit breaker |
EP2410548A1 (en) | 2010-07-23 | 2012-01-25 | Eaton Industries GmbH | Operating mechanism for an electric switching device |
DE102010063111B4 (en) * | 2010-12-15 | 2020-08-13 | Siemens Aktiengesellschaft | Housing of a circuit breaker, especially a circuit breaker for rated currents above 250A |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3614685A (en) * | 1970-02-06 | 1971-10-19 | Westinghouse Electric Corp | Circuit breaker with handle-indicating means |
CA1245698A (en) * | 1983-06-02 | 1988-11-29 | Gregory T. Divincenzo | Circuit breaker design for high speed manufacture |
DE4442417C1 (en) * | 1994-11-29 | 1996-02-15 | Kloeckner Moeller Gmbh | Toggle action mechanism for use with LV electrical power switch |
DE19910032C1 (en) * | 1999-03-08 | 2000-04-06 | Moeller Gmbh | Multiple pole switch for power switching, has chamber housing containing adjacent switch chambers with common switch shaft, in which each chamber has interacting fixed, pivotable contacts |
-
2001
- 2001-07-14 DE DE20111726U patent/DE20111726U1/en not_active Expired - Lifetime
-
2002
- 2002-07-05 EP EP02753079A patent/EP1407466B1/en not_active Expired - Lifetime
- 2002-07-05 WO PCT/EP2002/007448 patent/WO2003009324A1/en active IP Right Grant
- 2002-07-05 DE DE50202928T patent/DE50202928D1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO03009324A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE20111726U1 (en) | 2002-12-05 |
WO2003009324A1 (en) | 2003-01-30 |
EP1407466B1 (en) | 2005-04-27 |
DE50202928D1 (en) | 2005-06-02 |
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