EP0992049A1 - Electromagnetic switching device with arcing chambers - Google Patents
Electromagnetic switching device with arcing chambersInfo
- Publication number
- EP0992049A1 EP0992049A1 EP99911806A EP99911806A EP0992049A1 EP 0992049 A1 EP0992049 A1 EP 0992049A1 EP 99911806 A EP99911806 A EP 99911806A EP 99911806 A EP99911806 A EP 99911806A EP 0992049 A1 EP0992049 A1 EP 0992049A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- switching
- chambers
- switching device
- cover
- 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
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/345—Mounting of arc chutes
-
- 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
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/342—Venting arrangements for arc chutes
Definitions
- the invention relates to an electromagnetic switching device, in particular a contactor of high power, formed within a switching chamber housing
- Switching chambers arranged switching contacts and with each switching chamber with switching contact assigned deionizing device in the form of an extinguishing chamber, which is formed by extinguishing plates assembled into a package, and with a cover for closing the switching chambers of the switching chamber housing on the upper side.
- An electromagnetic switchgear with a quenching plate arrangement which is accommodated in a housing with a removable cover, has become known, for example, from DE 85 31 352 U1.
- the extinguishing plates are inserted into grooves in the housing walls and held in place by means of comb-shaped rubber parts by fitting the cover, a packet of extinguishing plates each forming an extinguishing chamber.
- EP 0505 794 B1 is an electromagnetic switching device with a multi-part housing, in which switching contacts accommodated in switching chambers of a housing part enclosing a switching room are provided and each switching contact is assigned a deionization device in the form of an arcing chamber with arcing plates and a commutation plate, the the quenching plates forming the quenching chamber are fastened by means of the commutation plates in the housing enclosing the switching chambers.
- An electrical switching device has become known from DE-OS 11 96 750. - 2 - the one in which the quenching plates forming the quenching chamber are individually held in the top of the wall of the housing covering the switching chamber itself.
- the invention has for its object to attach the quenching chambers formed from quenching plates in the switching device, i.e. in the housing that encompasses the control chambers and to simplify and secure assembly without additional individual parts for fixing the arcing chambers in the intended rooms.
- the extinguishing plate facing the cover has at least one bent-up tab as a shielding plate for each extinguishing chamber and pockets are formed on the underside of the cover with the tabs of the extinguishing chambers and the quenching chambers can be fastened to the cover by inserting the tabs into the pockets to form a positive connection.
- the extinguishing chamber is fastened to the underside of the cover covering the switching chambers without additional means, clamping parts, springs or the like.
- the prefabrication of the quenching chamber assembled from quenching plates is made possible as a structural unit and this quenching chamber is then connected to the cover in a further assembly step.
- the cover can then be placed together with the extinguishing chambers on the switchgear, ie the switchgear room, to close it.
- the invention enables a precise, quick assembly of the prefabricated arcing chambers on the cover and subsequent short-circuiting or jamming or damage during further assembly is avoided.
- a pair of tabs is formed on the uppermost quenching plate of a quenching chamber serving as a shielding plate on opposite sides approximately in the center and essentially at right angles to the plane of the quenching plate.
- a pair of pockets is formed on the underside of the cover for each extinguishing chamber to be attached.
- the tabs have an insertion groove, which are used for inserting and guiding the tab via a corresponding central web formed on the underside of the lid and crossing the pocket.
- the tabs are fork-shaped according to the invention, so that their two fork tines are resilient in each direction.
- these can have a grid on their outer edges, so that they can be inserted easily by clamping when inserted into the pocket of the cover and there is also space for yielding in the area of the groove.
- the pockets have projecting insertion wedges adjacent to one side of the central web for inserting and resiliently clamping the tabs of the arcing chamber exhibit.
- insertion wedges adjacent to one side of the central web for inserting and resiliently clamping the tabs of the arcing chamber exhibit.
- the top quenching plate is perforated at least in some areas as a shielding plate. This allows gases to escape, but particles are retained.
- the front edge of the shielding plate is preferably bent up and provided with holes and thus forms a ventilation path.
- the shielding plate in its free area opposite the bend with a screw block, in order to enable the extinguishing chamber to be fastened to the underside of the cover by means of a screw in addition to the form-fitting holding and guiding.
- the cover has a molded screw hole on its underside for receiving a screw.
- This arrangement according to the invention is further characterized in that three receiving areas for arcing chambers are formed on the underside of the lid in two rows arranged in mirror image with respect to one another, and each receiving area has an opening adjacent to the edge of the lid, in which the bending of the shielding plate can be inserted.
- Figure 1 an exploded view of an electromagnetic switching device with respect to the switching chamber with arcing chambers and cover;
- Figure 2 a perspective view of the top quenching plate of a quenching chamber
- Figure 3 a perspective view of an extinguishing chamber and the bottom view of the lid with the pockets designed for fastening the extinguishing chamber.
- the switching chamber housing 12 of an electromagnetic switching device is shown by way of example, which serves to accommodate the switching contacts, for which purpose it is divided into a corresponding number of partitioned switching chambers 121 by corresponding partition walls.
- the switching chamber housing or the switching chambers are covered on the upper side by means of the cover 13.
- an arcing chamber 14 is inserted between the switching contact and the cover.
- each quenching chamber 14 is made up of quenching plates 140 to 144 which are arranged parallel to one another and are spaced apart to form a package, the quenching plates being combined into the package by means of the side insulating plates 148, 149 by being inserted therein.
- the uppermost quenching plate 15 which is designed as a shielding plate, has an additional configuration with upstand C on the front side and perforations 155, 156.
- the shielding plate 15 is also held in the lateral insulating plates 148, 149.
- the shielding plate 15 is formed with tabs 15a, 15b which protrude at right angles to the plane of the extinguishing plate on the mutually opposite sides and protrude approximately.
- the shielding plate 15 can be produced by punching out and appropriately bending the tabs 15a, 15b and the upstand C at the front. Holes 156 in bend C and holes 155 - 6 - in the flat area are used for ventilation, the escape of gases and pressure relief.
- the shielding plate 15 is shown in a single view in FIG. 2.
- the shielding plate has projections d along mutually parallel sides.
- the tabs 15a, 15b are formed with the groove N as an insertion slot, as a result of which the tabs are fork-shaped and form two fork legs which also spring against one another.
- a grid Z can be formed on the outer edge of the tabs.
- the lid 13, see FIG. 3, is formed on its underside with six receiving areas for a total of six extinguishing chambers 14, two rows of three receiving areas each being arranged in mirror image to one another.
- Each receiving area is for arranging and fastening the arcing chambers 14 by means of the pairs of flaps 15a, b with corresponding pockets which are assigned to one another, i.e. Pocket pairs 131a, 131b formed.
- six quenching chambers are provided and correspondingly six receiving areas with six pairs of pockets on the underside of the cover 13.
- Each pocket which practically forms an insertion groove and is of sufficient size to insert a flap, has a central web S crossing the pocket on the input side on.
- the diameter of the central web S is equal to or less than the groove width N of the groove formed in the tab, so that the tabs can be inserted into the pockets via the central web S.
- the width of the pockets b is dimensioned such that the tabs can be inserted resiliently and clamped in the pockets along their grid Z.
- the fastening areas each have an opening 132 towards the edge of the cover, which serves to accommodate the bend C of the arcing chamber.
- the holes 156 in the bend C then form the ventilation path to the outside.
- a screw hole 3 is formed on the side of each receiving area opposite the opening 132, which corresponds to a hole 2 formed on the shielding plate 15 in order to enable the extinguishing chamber 14 to be additionally fastened to the cover by means of a screw.
- Cover 13 and extinguishing chamber 14 can be preassembled and then placed as a unit on the switching chamber housing 12 of the switching device during final assembly.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Magnetically Actuated Valves (AREA)
- Valve Device For Special Equipments (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19814411 | 1998-03-31 | ||
DE19814411A DE19814411C1 (en) | 1998-03-31 | 1998-03-31 | Electromagnetic switching device with quenching chamber, esp. a high power breaker |
PCT/EP1999/001875 WO1999050867A1 (en) | 1998-03-31 | 1999-03-20 | Electromagnetic switching device with arcing chambers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0992049A1 true EP0992049A1 (en) | 2000-04-12 |
EP0992049B1 EP0992049B1 (en) | 2005-07-20 |
Family
ID=7863121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99911806A Expired - Lifetime EP0992049B1 (en) | 1998-03-31 | 1999-03-20 | Electromagnetic switching device with arcing chambers |
Country Status (8)
Country | Link |
---|---|
US (1) | US6191377B1 (en) |
EP (1) | EP0992049B1 (en) |
JP (1) | JP3290670B2 (en) |
CN (1) | CN1121698C (en) |
AT (1) | ATE300095T1 (en) |
DE (2) | DE19814411C1 (en) |
HK (1) | HK1027211A1 (en) |
WO (1) | WO1999050867A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4336531A1 (en) * | 2022-09-06 | 2024-03-13 | ABB S.p.A. | Low voltage switch pole with an arc breaking element having a cover for hot gases with a plate element and a through hole |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3411206B2 (en) | 1997-12-26 | 2003-05-26 | 三菱電機株式会社 | Arc extinguishing device for contact switching equipment |
DE19943966A1 (en) * | 1999-09-14 | 2001-03-15 | Moeller Gmbh | Power circuit breaker has sprung arms to establish spring-actuated or form-fit connection between quenching device and housing part |
DE10149019C1 (en) * | 2001-09-28 | 2003-06-18 | Siemens Ag | Arc quenching device for low-voltage switchgear |
DE20316027U1 (en) | 2003-10-18 | 2004-01-15 | Moeller Gmbh | Electrical switching device with device for arc extinguishing |
DE102004037294A1 (en) * | 2004-07-27 | 2006-03-23 | Siemens Ag | Arc extinguishing device and low-voltage circuit breaker with a light arc extinguishing device |
CN100464388C (en) * | 2006-11-11 | 2009-02-25 | 常熟开关制造有限公司(原常熟开关厂) | Arc-suppressing device of plastic shell breaker |
US7898376B2 (en) * | 2008-05-20 | 2011-03-01 | Sercomm Corporation | Transformer apparatus with shielding architecture and shielding method thereof |
US20130112657A1 (en) * | 2010-07-08 | 2013-05-09 | Larsen & Toubro Limited | Arc chamber assembly for use in moulded case circuit breakers |
USD776622S1 (en) * | 2015-02-13 | 2017-01-17 | Layerzero Power Systems, Inc. | Cover |
CA2937325C (en) | 2015-08-13 | 2023-10-10 | Layerzero Power Systems, Inc. | Circuit breaker terminal cover and strip of terminal covers |
CN106206200B (en) * | 2016-08-31 | 2018-05-22 | 杭州乾龙电器有限公司 | A kind of flash barrier bindiny mechanism for breaker |
KR102349754B1 (en) * | 2019-12-06 | 2022-01-11 | 엘에스일렉트릭(주) | Arc box and Magnetic contactor include the same |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1196750B (en) * | 1962-05-21 | 1965-07-15 | Licentia Gmbh | Electrical switchgear |
DE7230068U (en) * | 1972-08-14 | 1974-01-31 | Siemens Ag | Switching status display device for electromagnetic switching devices |
DE7327820U (en) | 1973-07-30 | 1973-11-08 | Bbc Ag | Electrical switchgear, msbe special protection |
US4011425A (en) * | 1975-01-03 | 1977-03-08 | I-T-E Imperial Corporation | Arc chute extension for increased interruption rating |
US4254316A (en) * | 1979-08-30 | 1981-03-03 | Clark Control, Inc. | Electrical switching apparatus |
US4506243A (en) * | 1981-05-28 | 1985-03-19 | Mitsubishi Denki Kabushiki Kaisha | Electromagnetic contactor |
US4684772A (en) * | 1985-04-09 | 1987-08-04 | Square D Company | Mounting apparatus for arc quenching plates for electric contacts |
DE8531352U1 (en) * | 1985-11-06 | 1986-01-02 | Siemens AG, 1000 Berlin und 8000 München | Arc chamber |
DE8531354U1 (en) | 1985-11-06 | 1986-01-02 | Siemens AG, 1000 Berlin und 8000 München | Arc chamber |
US4945327A (en) | 1989-09-05 | 1990-07-31 | General Electric Company | Molded case circuit breaker variable arc exhaust shield |
DE4109717C1 (en) * | 1991-03-25 | 1992-09-03 | Kloeckner-Moeller Gmbh, 5300 Bonn, De | |
FR2687251B1 (en) * | 1992-02-11 | 1994-04-29 | Telemecanique | CUTTING STRUCTURE FOR CIRCUIT BREAKER. |
-
1998
- 1998-03-31 DE DE19814411A patent/DE19814411C1/en not_active Expired - Fee Related
-
1999
- 1999-03-20 JP JP54880399A patent/JP3290670B2/en not_active Expired - Fee Related
- 1999-03-20 AT AT99911806T patent/ATE300095T1/en not_active IP Right Cessation
- 1999-03-20 EP EP99911806A patent/EP0992049B1/en not_active Expired - Lifetime
- 1999-03-20 DE DE59912292T patent/DE59912292D1/en not_active Expired - Lifetime
- 1999-03-20 CN CN99800426A patent/CN1121698C/en not_active Expired - Fee Related
- 1999-03-20 WO PCT/EP1999/001875 patent/WO1999050867A1/en active IP Right Grant
- 1999-03-20 US US09/424,734 patent/US6191377B1/en not_active Expired - Lifetime
-
2000
- 2000-09-29 HK HK00106229A patent/HK1027211A1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9950867A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4336531A1 (en) * | 2022-09-06 | 2024-03-13 | ABB S.p.A. | Low voltage switch pole with an arc breaking element having a cover for hot gases with a plate element and a through hole |
Also Published As
Publication number | Publication date |
---|---|
HK1027211A1 (en) | 2001-01-05 |
CN1262773A (en) | 2000-08-09 |
CN1121698C (en) | 2003-09-17 |
ATE300095T1 (en) | 2005-08-15 |
US6191377B1 (en) | 2001-02-20 |
JP3290670B2 (en) | 2002-06-10 |
WO1999050867A1 (en) | 1999-10-07 |
EP0992049B1 (en) | 2005-07-20 |
DE59912292D1 (en) | 2005-08-25 |
DE19814411C1 (en) | 1999-07-15 |
JP2000513495A (en) | 2000-10-10 |
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