WO2011045214A1 - Leistungsschalter, insbesondere für niederspannungen - Google Patents
Leistungsschalter, insbesondere für niederspannungen Download PDFInfo
- Publication number
- WO2011045214A1 WO2011045214A1 PCT/EP2010/064896 EP2010064896W WO2011045214A1 WO 2011045214 A1 WO2011045214 A1 WO 2011045214A1 EP 2010064896 W EP2010064896 W EP 2010064896W WO 2011045214 A1 WO2011045214 A1 WO 2011045214A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit breaker
- contact
- lever
- spring
- cover
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
- H01H1/2041—Rotating bridge
- H01H1/205—Details concerning the elastic mounting of the rotating bridge in the rotor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
- H01H1/2041—Rotating bridge
- H01H1/2058—Rotating bridge being assembled in a cassette, which can be placed as a complete unit into a circuit breaker
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
- H01H73/045—Bridging contacts
Definitions
- the invention relates to a circuit breaker, in particular for low-voltage, according to the preamble of claim 1.
- Low-voltage circuit-breakers are well known and have a movable and a fixed contact for opening and closing, which contacts face each other.
- the contact pieces are arranged at the free end of a contact lever, which is rotatably mounted on or in a switching ⁇ wave.
- the contact lever extends transversely to the longitudinal axis of the switching shaft and protrudes with its free end out of the switching shaft.
- On the same side of the rotary ⁇ axis the contact piece opposite is located in the outer contour of the contact lever a recess for mounting a bolt, which is aligned parallel to the shift shaft.
- At both ends of the pin engage springs which clock the con- lever in the closing direction with a torque beaufschla ⁇ gene.
- the contact lever is usually out as a double lever ⁇ forms.
- Leaf and winding wire springs are used as springs. These can be as tension, compression or torsion springs out ⁇ leads.
- the contacts open after exceeding a predetermined current threshold. This creates an arc between the contact pieces. This has the desired property that it limits the current.
- the plasma generated by the arc and fuel gas whose temperature is well over 1000 degrees Celsius, has the disadvantage that it can damage parts of the rotor. In the case of molded case circuit breakers, this particularly affects the springs due to their small construction volume. To compensate for deformations of the springs, for example, they are oversized, making them due to their larger mass greater heat resistance exhibit. However, this again leads to a larger installation volume in the rotor housing and a stronger starting mechanism is required. It is also known to guide the springs by deflecting parts to the outside and shield there by means of a lid.
- the solution provides that the two springs each have a cover element supported on the bolt, which extends along the spring and is arranged in each case between the spring and the arc (in the case of opening contacts) which forms in each case between the contact pieces when the circuit breaker is opened.
- a structurally simple embodiment provides that interconnected at ⁇ the cover on a cross-member.
- the attachment of the two cover elements is simplified when the two cover elements are supported on the cross member on the bolt.
- the transverse element is clamped on the bolt.
- the two cover elements are designed as plastic parts or sheets.
- the load capacity of the switch can be increased by the fact that the contact lever is designed as a double lever.
- Fig. 1 is a switching shaft segment of a switching shaft of a
- FIG 3 shows the cover of the switching shaft segment with transverse ⁇ element and the two cover elements of FIG 1,
- FIG. 4 the cover of FIG. 3 in a spatial
- FIG. 5 the cover of FIG. 3 in a side view.
- Fig. 1 and 2 show a switching shaft segment 1 of a switching shaft la of a power switch for low voltages (not further shown), wherein the housing in Fig. 2 is adoptedschnit ⁇ th.
- the switching shaft la with its axis of rotation lb is formed from a plurality of laterally interconnected switching shaft segments 1.
- In the switching shaft segment 1 is a contact lever 4 navgela ⁇ siege, which is designed as a double lever and transverse to the axis of rotation of the switching shaft segment 1 (the switching shaft la) he ⁇ stretches.
- the two ends of the contact lever 4 protrude on ⁇ the sides of the switching shaft segment 1 out. At their ends, they enter on one side of the outer contour
- cover elements 10 are arranged in the form of plastic parts or sheets for covering the springs 7a at both ends, which are based on Fig. 1 down.
- the cover elements 10 are in each case between a spring 7a and the associated contact pieces 5 or contacts, between which the arc is formed at a short circuit and opening contacts each.
- Fig. 3 the cover 8 is shown with the cross member 9 and the two cover members 10 and the bolt 7 with the springs 7a alone.
- the cover 8 is shown in FIG. 4 in a three-dimensional representation; whose side view can be seen in Fig. 5.
- a taper 11 of the cross member 9 ensures the clamping when attaching the cover 8 on the pin 7th
Landscapes
- Breakers (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080046393.XA CN102549694B (zh) | 2009-10-15 | 2010-10-06 | 尤其用于低压的断路器 |
US13/500,735 US8872050B2 (en) | 2009-10-15 | 2010-10-06 | Circuit-breaker, in particular for low voltages |
EP10765418A EP2489052A1 (de) | 2009-10-15 | 2010-10-06 | Leistungsschalter, insbesondere für niederspannungen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009050296.3 | 2009-10-15 | ||
DE102009050296A DE102009050296A1 (de) | 2009-10-15 | 2009-10-15 | Leistungsschalter, insbesondere für Niederspannungen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011045214A1 true WO2011045214A1 (de) | 2011-04-21 |
Family
ID=43302155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/064896 WO2011045214A1 (de) | 2009-10-15 | 2010-10-06 | Leistungsschalter, insbesondere für niederspannungen |
Country Status (5)
Country | Link |
---|---|
US (1) | US8872050B2 (de) |
EP (1) | EP2489052A1 (de) |
CN (1) | CN102549694B (de) |
DE (1) | DE102009050296A1 (de) |
WO (1) | WO2011045214A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012201939B4 (de) | 2012-02-09 | 2021-08-05 | Siemens Aktiengesellschaft | Schalteinheit für ein elektrisches Schaltgerät |
US10395854B2 (en) * | 2017-11-08 | 2019-08-27 | Eaton Intelligent Power Limited | Electrical switching apparatus, and crossbar assembly and spring cap therefor |
CN108766805B (zh) * | 2018-05-31 | 2020-04-28 | 深圳市泰永电气科技有限公司 | 自动转换开关电器的双断点动触头组件及触头装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0394922A1 (de) * | 1989-04-28 | 1990-10-31 | Asea Brown Boveri Ab | Kontaktanordnung für elektrische Schaltgeräte |
US20050046539A1 (en) * | 2003-08-29 | 2005-03-03 | Ronald Ciarcia | Isolation cap and bushing for circuit breaker rotor assembly |
US20050231308A1 (en) * | 2004-04-16 | 2005-10-20 | Ls Industrial Systems Co., Ltd. | Movable contactor assembly of circuit breaker |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1540591C3 (de) * | 1965-11-17 | 1974-09-19 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Lasttrennschalter mit beweglichem Schaltstück je Polbahn |
DE19836754B4 (de) * | 1998-08-13 | 2006-10-05 | Aeg Niederspannungstechnik Gmbh & Co Kg | Schaltwelleneinheit für Schalter |
US6281461B1 (en) * | 1999-12-27 | 2001-08-28 | General Electric Company | Circuit breaker rotor assembly having arc prevention structure |
US6639168B1 (en) * | 2000-03-17 | 2003-10-28 | General Electric Company | Energy absorbing contact arm stop |
KR100575243B1 (ko) | 2004-04-16 | 2006-05-02 | 엘에스산전 주식회사 | 배선용 차단기의 가동 접촉자 어셈블리 |
KR100618610B1 (ko) | 2004-12-07 | 2006-09-08 | 엘에스산전 주식회사 | 배선용 차단기의 한류기구 장치 |
KR100881361B1 (ko) * | 2007-07-12 | 2009-02-02 | 엘에스산전 주식회사 | 접압 스프링 보호 기구를 갖는 기중 차단기용 가동접촉자 |
DE102007040163A1 (de) | 2007-08-21 | 2009-02-26 | Siemens Ag | Schaltgerät mit einer Schaltwelle zur Lagerung einer Drehkontaktbrücke sowie mehrpolige Schaltgeräteanordnung |
WO2009035638A1 (en) * | 2007-09-11 | 2009-03-19 | Siemens Energy & Automation, Inc. | Double-break disconnect / contact system |
DE102008007365A1 (de) * | 2008-01-30 | 2009-08-06 | Siemens Aktiengesellschaft | Schaltgerät, insbesondere Leistungsschaltgerät |
-
2009
- 2009-10-15 DE DE102009050296A patent/DE102009050296A1/de not_active Withdrawn
-
2010
- 2010-10-06 CN CN201080046393.XA patent/CN102549694B/zh not_active Expired - Fee Related
- 2010-10-06 US US13/500,735 patent/US8872050B2/en not_active Expired - Fee Related
- 2010-10-06 EP EP10765418A patent/EP2489052A1/de not_active Withdrawn
- 2010-10-06 WO PCT/EP2010/064896 patent/WO2011045214A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0394922A1 (de) * | 1989-04-28 | 1990-10-31 | Asea Brown Boveri Ab | Kontaktanordnung für elektrische Schaltgeräte |
US20050046539A1 (en) * | 2003-08-29 | 2005-03-03 | Ronald Ciarcia | Isolation cap and bushing for circuit breaker rotor assembly |
US20050231308A1 (en) * | 2004-04-16 | 2005-10-20 | Ls Industrial Systems Co., Ltd. | Movable contactor assembly of circuit breaker |
Also Published As
Publication number | Publication date |
---|---|
US20120199453A1 (en) | 2012-08-09 |
CN102549694A (zh) | 2012-07-04 |
CN102549694B (zh) | 2015-04-15 |
US8872050B2 (en) | 2014-10-28 |
EP2489052A1 (de) | 2012-08-22 |
DE102009050296A1 (de) | 2011-04-21 |
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