EP0731977A1 - Electromagnetic switchgear - Google Patents
Electromagnetic switchgearInfo
- Publication number
- EP0731977A1 EP0731977A1 EP95900642A EP95900642A EP0731977A1 EP 0731977 A1 EP0731977 A1 EP 0731977A1 EP 95900642 A EP95900642 A EP 95900642A EP 95900642 A EP95900642 A EP 95900642A EP 0731977 A1 EP0731977 A1 EP 0731977A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- arc chamber
- switching device
- contact
- bolt
- 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
Definitions
- the invention relates to an electromagnetic switching device, in particular a contactor, with an arcing chamber which can be removed from a lower part and a contact bridge support which projects into the region of the arcing chamber and carries the movable contact parts, and with a locking means which automatically locks the contact bridge support when the arcing chamber is removed.
- An electromagnetic switching device is known from EP 0 515 731, in which the contact bridge support remains securely locked to the housing even in the event of vibrations and impacts when the arcing chamber is removed and in which the latch is always included with the fastening element of the arcing chamber Security, without intermediate positions can be solved constantly.
- the bolt which is housed in the housing, locks the contact carrier under the action of a spring.
- the bolt can be held against the spring force in the unlocked position by means of the inserted fastening element of the extinguishing chamber that is operationally installed.
- the spring has the effect that, when the fastening element is removed, the bolt securely locks the contact carrier in the housing even in the event of shocks and impacts. Intermediate positions are practically impossible.
- the latch is rotatably mounted in the housing and can reach behind and hold part of the contact bridge support in the locked position.
- the invention has for its object to provide an electromagnetic switching device of the type mentioned above, which ensures a secure locking of the contact bridge support with removed arc chamber with a simple structure.
- the object is achieved in that means are provided on the blocking means and on the arcing chamber, by means of which the blocking means, when the arcing chamber is connected to the lower part, is moved in a link-guided manner into a position that unlocks the contact bridge carrier.
- An advantageous embodiment of the invention is achieved if the locking means is designed as a slide with an oblique edge contour as the means, and if the arc chamber has a contour adapted to it and intended for engagement.
- the locking means is designed as a rotatable bolt which is held in the locking position by a torsion spring, and if the bolt is provided with an inclined contact surface over which the bolt engages with an adapted contour of the arc chamber can be rotated into a position unlocking the contact bridge carrier.
- FIG. 1 shows a lower part of a switching device with a slide locking the contact carrier
- FIG. 2 shows a switching device with an unlocked contact bridge carrier
- FIG. 3 shows the locking of the contact bridge carrier by means of a rotatably mounted bolt
- FIG. 4 shows a plan view of the rotatably mounted bolt according to FIG. 3
- the switching device shown in FIG. 1 has a lower part 5, in which the non-switching magnetic part with the coil and the switching magnetic part (not shown) with the contact bridge support 6, which projects into the area of the arc chamber 2, are accommodated.
- the arc chamber 2 is removed here.
- Slide 1 lying in the housing wall 11 of the lower part 5 are brought here into a position locking the contact carrier 6 by a compression spring 12.
- the bars 1 are provided with projections 9 on their upper side. These are triangular in section according to FIG 1, ie they have an oblique edge contour.
- the arc chamber 2 is provided with recesses 10 opposite the projections 9, slightly offset, and has an inner contour 4 adapted to the oblique edge contour 3.
- the two contours 3, 4 slide when the arc chamber 2 is placed on the lower part 5 in the manner of a link guide, the slides 1 being displaced outward against the spring force of the compression spring 12 and thus releasing the contact bridge carrier 6, as shown in FIG. 2 is shown.
- the projections 9 are immersed here in the recesses 10 of the arc chamber 2.
- a rotatable bolt 1 is used instead of the longitudinally displaceable bolt 1. This is, for example, as shown in FIG. 3, held in the housing wall 11 and has an inclined contact surface 8. According to FIG. 4, the bolt 1 is held in the position locking the contact bridge carrier 6 by a torsion spring 7.
- the arc chamber 2 has a recess 10 for receiving the bolt 1 when it is placed on the lower part 5.
- the rotatable bolt 1 is immersed in the recess 10 and an inner contour 4 of the recess 10 adapted to the contact surface 8 slides by rotating the bolt 1 on its contact surface 8 along, so that, against the spring force of the torsion spring 7, the bolt 1 is brought into a position that unlocks the contact bridge carrier 6.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Casings For Electric Apparatus (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4341330A DE4341330C1 (en) | 1993-12-03 | 1993-12-03 | Electromagnetic switching device |
DE4341330 | 1993-12-03 | ||
PCT/DE1994/001362 WO1995015574A1 (en) | 1993-12-03 | 1994-11-18 | Electromagnetic switchgear |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0731977A1 true EP0731977A1 (en) | 1996-09-18 |
EP0731977B1 EP0731977B1 (en) | 1997-06-04 |
Family
ID=6504161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95900642A Expired - Lifetime EP0731977B1 (en) | 1993-12-03 | 1994-11-18 | Electromagnetic switchgear |
Country Status (6)
Country | Link |
---|---|
US (1) | US5825269A (en) |
EP (1) | EP0731977B1 (en) |
JP (1) | JPH09505933A (en) |
CN (1) | CN1044754C (en) |
DE (2) | DE4341330C1 (en) |
WO (1) | WO1995015574A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2751783B1 (en) * | 1996-07-24 | 1998-08-28 | Schneider Electric Sa | ELECTROMAGNETIC SWITCHING APPARATUS |
SE513442C2 (en) * | 1999-01-28 | 2000-09-11 | Asea Brown Boveri | Contactor |
CN1107963C (en) * | 1999-05-27 | 2003-05-07 | 孙凤广 | Mechanical self-latching type ac contact means |
DE10013319C1 (en) | 2000-03-17 | 2001-10-11 | Siemens Ag | Electromagnetic switching device, in particular a contactor, with a contact bridge support lock |
DE102004053613B4 (en) * | 2004-11-02 | 2006-09-28 | Siemens Ag | Switchgear with an unlocking arc limitation |
EP1892739A1 (en) * | 2006-08-25 | 2008-02-27 | Siemens Aktiengesellschaft | An electromagnetic drive unit and an electromechanical switching device |
ATE549733T1 (en) * | 2007-02-23 | 2012-03-15 | Siemens Ag | ELECTROMAGNETIC SWITCHING DEVICE |
CN102426991B (en) * | 2011-09-20 | 2014-12-10 | 上海诺雅克电气有限公司 | Contactor with contact locking mechanism |
US8933359B2 (en) | 2011-12-29 | 2015-01-13 | Progress Rail Services Corp | Locomotive positive power bus contactor method of assembly |
CN107336063B (en) * | 2017-01-24 | 2019-02-12 | 江山市美轩门业有限公司 | A kind of plate cutting switching device |
GB2582307A (en) | 2019-03-18 | 2020-09-23 | Eaton Intelligent Power Ltd | Switching device for fast disconnection of short-circuit currents |
CN117976446B (en) * | 2024-03-29 | 2024-06-11 | 山西阳光三极科技股份有限公司 | Explosion-proof shell uncap power-off protection device |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3728506A (en) * | 1971-10-21 | 1973-04-17 | Mercor Corp | Contactor with a removable arc chute |
US3992599A (en) * | 1974-05-16 | 1976-11-16 | Allis-Chalmers Corporation | Interlock for arc chute of circuit maker and breaker |
DE3402836A1 (en) * | 1984-01-27 | 1985-08-01 | Siemens AG, 1000 Berlin und 8000 München | Electromagnetic switching apparatus |
CN1025702C (en) * | 1990-07-14 | 1994-08-17 | 肖新凯 | Small universal electromagnet operated at wide voltage range |
FR2673486B1 (en) * | 1991-02-28 | 1996-03-01 | Telemecanique | CURRENT SWITCHING APPARATUS. |
CH682113A5 (en) * | 1991-05-29 | 1993-07-15 | Sprecher & Schuh Ag | |
FR2685124B1 (en) * | 1991-12-17 | 1994-03-18 | Telemecanique | PROTECTIVE SWITCHING APPARATUS SUCH AS A CIRCUIT-BREAKER. |
FR2685976A1 (en) * | 1992-01-07 | 1993-07-09 | Telemecanique | MECHANISM FOR CURRENT SWITCHING APPARATUS. |
US5300905A (en) * | 1992-10-19 | 1994-04-05 | Ford Motor Company | Electrical power disconnect switch with both manual and electrical trip operation |
US5296826A (en) * | 1993-05-13 | 1994-03-22 | Eaton Corporation | Switch assembly |
FR2707794B1 (en) * | 1993-07-12 | 1995-08-18 | Telemecanique | Protection switch device. |
US5652420A (en) * | 1995-11-14 | 1997-07-29 | Eaton Corporation | Modular contactor control system |
-
1993
- 1993-12-03 DE DE4341330A patent/DE4341330C1/en not_active Expired - Fee Related
-
1994
- 1994-11-18 DE DE59403056T patent/DE59403056D1/en not_active Expired - Fee Related
- 1994-11-18 WO PCT/DE1994/001362 patent/WO1995015574A1/en active IP Right Grant
- 1994-11-18 EP EP95900642A patent/EP0731977B1/en not_active Expired - Lifetime
- 1994-11-18 CN CN94194345A patent/CN1044754C/en not_active Expired - Fee Related
- 1994-11-18 JP JP7515324A patent/JPH09505933A/en active Pending
- 1994-11-18 US US08/647,975 patent/US5825269A/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9515574A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN1136361A (en) | 1996-11-20 |
DE59403056D1 (en) | 1997-07-10 |
US5825269A (en) | 1998-10-20 |
WO1995015574A1 (en) | 1995-06-08 |
EP0731977B1 (en) | 1997-06-04 |
CN1044754C (en) | 1999-08-18 |
DE4341330C1 (en) | 1995-04-20 |
JPH09505933A (en) | 1997-06-10 |
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