EP1145265A1 - Strombegrenzende kontaktanordnung - Google Patents
Strombegrenzende kontaktanordnungInfo
- Publication number
- EP1145265A1 EP1145265A1 EP00979541A EP00979541A EP1145265A1 EP 1145265 A1 EP1145265 A1 EP 1145265A1 EP 00979541 A EP00979541 A EP 00979541A EP 00979541 A EP00979541 A EP 00979541A EP 1145265 A1 EP1145265 A1 EP 1145265A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cassette
- contact
- contact arrangement
- arrangement according
- current loops
- 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
- 239000011810 insulating material Substances 0.000 claims abstract description 8
- 238000010791 quenching Methods 0.000 claims description 13
- 230000000171 quenching effect Effects 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005755 formation reaction Methods 0.000 claims description 2
- 239000004020 conductor Substances 0.000 abstract description 6
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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
- H01H9/36—Metal parts
- H01H9/362—Mounting of plates in arc chamber
-
- 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
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
Definitions
- the invention relates to a current-limiting contact arrangement according to the preamble of claim 1.
- Such contact arrangements are used in low-voltage switching devices such as circuit breakers, miniature circuit breakers or motor protection switches.
- EP-B-0419324 describes a current-limiting contact arrangement comprising two fixed busbars, each with a fixed contact, and a contact bridge with two movable contacts which are to be connected to and disconnected from the fixed contacts in order to close and open a circuit , known.
- the busbars each have two current loops, which extend on both sides next to the opening path of the movable contacts and in planes running parallel to the longitudinal center plane of the contact arrangement.
- the arcs which arise between the opening contacts are deflected as a result of the inductive effect of the short-circuit current flowing through the current loops in such a way that they are arranged along arc conductors connected to the busbars and one away from them common arc arrester can be discharged faster and subsequently extinguished.
- the busbars, the arcing wire, the guide for the contact bridge and a contact pressure spring are pre-assembled in a centrally located insulating base and on both sides of it and parallel to the above-mentioned insulating layer, whereby the current loops are absorbed by the outer walls of the insulating shells.
- This contact arrangement each with one Is provided to the outside opening arc extinguishing gap, is positively received by suitably designed inner surfaces of a switchgear housing.
- a disadvantage is the complex pre-assembly of the contact arrangement.
- a contact arrangement consisting of a busbar with a current loop and an arc arrester and a pivotable contact arm with an arc arrester, is also described, but no information is given on the assembly of this contact arrangement.
- a current limiting contact arrangement of the generic type is known from a fixed conductor rail with a fixed contact and with an arc arrester, from a contact arm with a movable contact and from an arc extinguishing device in the form of a quenching plate package.
- the busbar has two current loops which extend on both sides next to the only initial opening path of the movable contacts and in a curved surface running perpendicular to the central plane of the contact arrangement.
- An insulating part is to be pushed over the current loops, which prevents an arc arising in the event of a short-circuit current between the opening contacts from passing onto the current loops and which holds an insulated magnetic yoke to be arranged above the current loops, the magnetic field of which over the rest of the opening path of the movable contact keeps the arc accelerates into the extinguishing device.
- the busbar with the insulating part, the magnetic yoke and the quenching plate package must be installed individually in a switchgear housing - pre-assembly is not provided. Another disadvantage is the requirement of the magnetic yoke as well as the
- the shape of the current loop caused a relatively large width of the contact arrangement.
- the invention is therefore based on the object of specifying a space-saving and technically advantageous contact arrangement.
- the object is achieved according to the invention by the characterizing features of the independent claim, while advantageous developments of the invention can be found in the dependent claims.
- a pre-assembled module is created that is easy to insert into the switchgear housing.
- the alignment of the current loops parallel to the median plane and their mounting and isolation from the other contact parts by the cassette creates a compact contact arrangement of small width, which due to its relative closed inside ensures a favorable flow behavior of the arc gases, the developing pressure due to the form-fitting
- the cassette in the switchgear housing is intercepted gently.
- the largely closed cassette design also significantly improves the insulation strength between non-connected live parts.
- the control unit housing is preferably made of a durable insulating material, since a significant part of the mechanical stress and most of the thermal stress are absorbed by the cassette. The ease of installation of the cassette assembly is further improved by the latching of both cassette parts.
- a particularly advantageous development of the invention consists in that the cassette consists of a chamber part provided with an outlet opening for receiving the extinguishing plates and of a lid part provided with a through opening for fixing the extinguishing plates and for the contact arm, with the partly nested cassette parts and very large due to the narrow design of the passage opening Clearances and creepage distances between non-connected live parts are formed.
- the quenching plates are preferably held between strip-like configurations of the assembled cassette parts.
- the alignment of these training courses and, if appropriate, further training courses or recesses for fixing additional parts in the direction of the molding tools to be removed leads to a substantial simplification of the molding process.
- a stop means for intercepting the kinetic energy of the contact arm electrodynamically flung in the event of a short circuit can be fixed in the interior of the cassette in a simple manner.
- suitable shapes can be used to hold insulating parts in the cassette which emit extinguishing gases when arcing occurs.
- Figure 1 a contact arrangement according to the invention in connection with a switching device in a perspective exploded view
- Figure 2 the immovable parts of the contact arrangement in a perspective exposive view.
- the actuating mechanism 3 acts on a switching shaft 23 which extends over all three poles and on which contact arms are pivotably mounted, of which in turn only the contact arm 21 belonging to the central pole is shown with an end-side movable contact 211.
- an immovable contact arrangement part 1 and a contact arm 21 form a contact arrangement in the sense of the invention.
- the immovable contact arrangement parts 1 are inserted into chambers 51 of the lower part 5.
- the immovable contact arrangement part 1 contains a busbar 11, an arc extinguishing device 13 and a cassette comprising a box-like chamber part 15 and a box-like cover part 17.
- the busbar 11 contains at one end a fixed contact 11 1, which in or out of connection with the Movable contact 211 of the contact arm 21 occurs, as well as an arcing contact 113 and at the other end a connecting lug 115.
- the busbar 11 also contains two current loops 117 which are bent upwards laterally from the remaining part of the busbar 11 and are parallel in planes on both sides extend to the center plane XY of the contact arrangement and next to the entire opening path of the movable contact 211.
- the two-part cassette 15, 17 is formed from insulating material and is essentially supported on all sides by corresponding inner surfaces of the lower part 5 and upper part 6 after the installation of the immovable contact arrangement part 1.
- the insulating material from which the cassette parts 15 and 17 are made should be a high-quality material in electrical and thermal terms. In order to the switchgear housing can consist of a material that is less demanding and therefore cheaper.
- the quenching plates 131 of the arc quenching device 13 are held in a form-fitting manner in the interior of the cassette.
- the chamber part 15 and, to a small extent, the cover part 17 have strip-like designs 152 on the opposite inner sides 151, with which the extinguishing plates 131 are spaced apart and held laterally.
- the formations 152 are oriented such that they do not represent an obstacle when the cassette parts are removed from the molds.
- the part of the busbar 11 connected to the fixed contact 111 extends via an inlet opening into the interior of the cassette 15, 17.
- openings 156 and 176 which run out on one side, are provided on the lower walls of the cassette parts 15 and 17, which, after assembly, provide the continuous opening Form entry opening 156 + 176.
- the current loops 117 and thus the conductor rail are held in a form-fitting manner.
- guide strips 157 and 177 are formed on both sides laterally outwards.
- the busbar 11 When assembling the immovable contact arrangement part 1 with its current loops 117, the busbar 11 is pushed in a straight line and in a direction X, which is approximately perpendicular to the fixed contact 111, between the guide strips 157 and 177 over the assembled cassette 15, 17 and against displacements in or set against the direction Y by the guide strips 157 and 177.
- the present invention is not limited to the embodiments described above, but also encompasses all embodiments having the same effect in the sense of the invention.
- the invention can be further developed by fixing in the cassette 15, 17 anchoring means for the insulating arm parts or or and arc-quenching insulating material parts which are electrodynamically released in the event of short-circuit currents during assembly.
- the two cassette parts 15 and 17 can be connected to one another via integrated latching elements.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19956656 | 1999-11-25 | ||
| DE19956656A DE19956656A1 (de) | 1999-11-25 | 1999-11-25 | Strombegrenzende Kontaktanordnung |
| PCT/EP2000/011026 WO2001039224A1 (de) | 1999-11-25 | 2000-11-08 | Strombegrenzende kontaktanordnung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1145265A1 true EP1145265A1 (de) | 2001-10-17 |
| EP1145265B1 EP1145265B1 (de) | 2003-01-29 |
Family
ID=7930248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00979541A Expired - Lifetime EP1145265B1 (de) | 1999-11-25 | 2000-11-08 | Strombegrenzende kontaktanordnung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6518530B2 (de) |
| EP (1) | EP1145265B1 (de) |
| JP (1) | JP2003515880A (de) |
| DE (2) | DE19956656A1 (de) |
| WO (1) | WO2001039224A1 (de) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20316027U1 (de) * | 2003-10-18 | 2004-01-15 | Moeller Gmbh | Elektrisches Schaltgerät mit Einrichtung zur Lichtbogenlöschung |
| US8604653B2 (en) | 2005-06-25 | 2013-12-10 | Inpro/Seal, LLC | Current diverter ring |
| DE102006026064B4 (de) * | 2006-06-03 | 2008-06-05 | Moeller Gmbh | Elektrische Schaltanordnung und Montageverfahren |
| US7716816B2 (en) * | 2006-09-22 | 2010-05-18 | Rockwell Automation Technologies, Inc. | Method of manufacturing a switch assembly |
| US7551050B2 (en) * | 2006-09-22 | 2009-06-23 | Rockwell Automation Technologies, Inc. | Contactor assembly with arc steering system |
| DE102007003674B3 (de) * | 2007-01-18 | 2008-11-06 | Moeller Gmbh | Lagerungseinrichtung zur Aufnahme einer Lagerachse |
| AT509277A1 (de) * | 2008-03-05 | 2011-07-15 | Moeller Gebaeudeautomation Gmbh | Schaltgerät |
| DE102008015196B4 (de) * | 2008-03-20 | 2009-11-19 | Siemens Aktiengesellschaft | Lichtbogen-Löschvorrichtung für ein Schaltgerät, Schaltgerät mit Lichtbogen-Löschvorrichtung sowie Verfahren zum Herstellen einer Lichtbogen -Löschvorrichtung |
| DE102009023556B4 (de) * | 2009-05-30 | 2012-01-19 | Abb Ag | Elektrisches Schaltgerät mit einem thermischen Auslöser |
| FR2972074B1 (fr) * | 2011-02-25 | 2013-10-11 | Schneider Electric Ind Sas | Cassette d'extinction d'arc, bloc de coupure unipolaire comportant une telle cassette et dispositif de coupure comportant un tel bloc |
| WO2013086531A1 (en) | 2011-12-08 | 2013-06-13 | Inpro/Seal Llc | Current diverter ring |
| EP2650893A1 (de) * | 2012-04-12 | 2013-10-16 | ABB Oy | Elektrische Stromschaltungsvorrichtung |
| ES2663341T3 (es) | 2012-04-12 | 2018-04-12 | Abb Oy | Aparato de conmutación de corriente eléctrica |
| EP2650894B1 (de) | 2012-04-12 | 2018-06-06 | ABB Oy | Elektrische Stromschaltungsvorrichtung |
| US9831739B2 (en) | 2012-06-18 | 2017-11-28 | Inpro/Seal Llc | Explosion-proof current diverting device |
| WO2013192169A1 (en) | 2012-06-18 | 2013-12-27 | Inpro/Seal Llc | Current diverter ring |
| CN102800539B (zh) * | 2012-08-13 | 2015-02-11 | 江苏辉能电气有限公司 | 具有限流装置的小电流塑壳断路器可动静触头结构 |
| CN105097307A (zh) * | 2014-05-15 | 2015-11-25 | 沈阳工业大学 | 新型控制与保护开关触头系统 |
| CN105762041B (zh) * | 2016-05-17 | 2017-09-12 | 浙江人民电器有限公司 | 一种直流断路器灭弧结构 |
| CN106356240A (zh) * | 2016-11-02 | 2017-01-25 | 乐清市也为电气有限公司 | 一种隔离开关的动、静触头装置 |
| US10128069B1 (en) * | 2017-07-18 | 2018-11-13 | Eaton Intelligent Power Limited | Electrical switching apparatus and debris barrier therefor |
| CN112802722B (zh) * | 2021-01-27 | 2025-01-24 | 西安理工大学 | 一种静触头结构、触头系统及断路器 |
| JP7704004B2 (ja) * | 2021-10-29 | 2025-07-08 | 富士電機機器制御株式会社 | 電流遮断部及びその組立て方法 |
| US11749475B2 (en) | 2021-11-12 | 2023-09-05 | Eaton Intelligent Power Limited | Arc chute debris blocker |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2243038A (en) * | 1938-07-01 | 1941-05-20 | Westinghouse Electric & Mfg Co | Circuit interrupter |
| DE1885241U (de) * | 1963-06-28 | 1964-01-02 | Licentia Gmbh | Loeschblechanordnung fuer selbstschalter. |
| JPS5866228A (ja) * | 1981-10-16 | 1983-04-20 | 富士電機株式会社 | しや断器 |
| US4743720A (en) * | 1985-11-25 | 1988-05-10 | Matsushita Electric Works, Ltd. | Current limiting circuit interrupter |
| FR2652199B1 (fr) * | 1989-09-19 | 1994-05-13 | Telemecanique | Dispositif interrupteur avec boucles de courant assistant le developpement de l'arc. |
| US5589672A (en) * | 1994-06-14 | 1996-12-31 | Fuji Electric Co., Ltd. | Circuit breaker with arc quenching device and vent |
| DE19715116C2 (de) * | 1997-04-11 | 1999-05-12 | Aeg Niederspannungstech Gmbh | Lichtbogenkammersystem |
-
1999
- 1999-11-25 DE DE19956656A patent/DE19956656A1/de not_active Withdrawn
-
2000
- 2000-11-08 JP JP2001540801A patent/JP2003515880A/ja active Pending
- 2000-11-08 DE DE50001167T patent/DE50001167D1/de not_active Expired - Lifetime
- 2000-11-08 EP EP00979541A patent/EP1145265B1/de not_active Expired - Lifetime
- 2000-11-08 WO PCT/EP2000/011026 patent/WO2001039224A1/de not_active Ceased
-
2001
- 2001-07-24 US US09/912,000 patent/US6518530B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0139224A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001039224A1 (de) | 2001-05-31 |
| JP2003515880A (ja) | 2003-05-07 |
| EP1145265B1 (de) | 2003-01-29 |
| US20020056705A1 (en) | 2002-05-16 |
| US6518530B2 (en) | 2003-02-11 |
| DE50001167D1 (de) | 2003-03-06 |
| DE19956656A1 (de) | 2001-05-31 |
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