EP2905794B1 - Static contact support for circuit breaker and circuit breaker thereof - Google Patents

Static contact support for circuit breaker and circuit breaker thereof Download PDF

Info

Publication number
EP2905794B1
EP2905794B1 EP14197126.7A EP14197126A EP2905794B1 EP 2905794 B1 EP2905794 B1 EP 2905794B1 EP 14197126 A EP14197126 A EP 14197126A EP 2905794 B1 EP2905794 B1 EP 2905794B1
Authority
EP
European Patent Office
Prior art keywords
static contact
circuit breaker
base layer
contact support
support
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.)
Active
Application number
EP14197126.7A
Other languages
German (de)
French (fr)
Other versions
EP2905794A1 (en
Inventor
Zhang Yao Bao
Xian SHEN
Yang Wang
Gang Zhou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=52013957&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2905794(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2905794A1 publication Critical patent/EP2905794A1/en
Application granted granted Critical
Publication of EP2905794B1 publication Critical patent/EP2905794B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/025—Composite material having copper as the basic material
    • 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
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/225—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member the supporting member being pivotable

Definitions

  • the present invention relates to a static contact support, in particular to a static contact support for a small circuit breaker.
  • the current in a circuit under normal operating conditions can be established, carried and cut off by joining and separating a moving contact and a static contact.
  • a micro circuit breaker can also carry and cut off an abnormal current within a given time in specified scenarios, for example under abnormal operating conditions such as overload and open circuit.
  • a static contact is mounted on a static contact support.
  • the static contact support carries a very large current, and must also channel the arc produced between the moving and static contacts to an arc extinguishing system disposed in the circuit breaker.
  • Existing static contact supports are made of copper-plated steel or pure copper.
  • Static contact mounting supports of copper-plated steel have very good mechanical strength, but high resistivity, so generate a lot of heat when carrying a current.
  • Static mounting supports of pure copper have low resistivity, but also low mechanical strength and low magnetic permeability, so they are unable to extinguish the arc produced between the moving and static contacts.
  • an electrical contact device in particular for low-voltage switches and contractors is disclosed.
  • the electrical contact device comprises a contact element produced in one piece.
  • Said contact element comprises in particular a first conducting area and a second contact area, said first area and said second area being produced with materials of different type.
  • a moving element for a low voltage switching device and a switching device comprising said moving element comprises for each pole a housing unit suitable to receive an elastic element which interacts with an electrical contact.
  • This latter comprises a first contact portion susceptible to contact a further electrical contact and a second portion connectable to a conductive element of the switching device.
  • a switch-gear contact with electrodynamic reinforcement of contact pressure is disclosed, which comprises a resiliently mounted pivotal part for abutting engagement with a contact and supported on a rigid part having portions substantially at right angles, with the part parallel and close to the pivotal part so that the current assists contact pressure.
  • breaking circuit In breaking circuit the contact is tilted by a spring so that the leading edge first makes contact before a break is made at the raised portion so that arcing at the portion is avoided. Owing to the hairpin shape of the current path the arc tends to be blown outwards by the electrodynamic forces.
  • a multi-pole circuit breaker which includes a base and a cover of molded insulating material, an operating mechanism and a trip device.
  • An object of the present invention is to provide a static contact support for a circuit breaker, which can help to extinguish an arc produced between a moving contact and a static contact in a circuit breaker.
  • Another object of the present invention is to provide a circuit breaker which uses the static contact support.
  • the present invention provides a static contact support for a circuit breaker, comprising a base layer and a reinforcing layer.
  • the base layer is for transferring current passing through the circuit breaker.
  • the reinforcing layer is superposed on the base layer, can provide the base layer with structural support, and can attract an arc produced between a moving contact and a static contact in the circuit breaker into an arc extinguishing mechanism of the circuit breaker, wherein the reinforcing layer and the base layer are superposed by a process for combining metals.
  • an electrically conductive base layer on the one hand means that current flowing through the static contact support produces very little heat; on the other hand, good heat-conducting properties in the base layer enable the static contact support to cool the arc, helping to extinguish it.
  • the reinforcing layer has good mechanical strength and magnetic permeability. On the one hand, this means it can reinforce the mechanical strength of the base layer; on the other hand, the magnetically permeable reinforcing layer can channel the arc into the arc extinguishing mechanism of the circuit breaker, so it is extinguished quickly. Furthermore, being superposed, the base layer and reinforcing layer can be conveniently fitted into the circuit breaker.
  • the base layer is made of copper metal.
  • the reinforcing layer is made of steel.
  • the ratio of the thickness of the base layer to the thickness of the reinforcing layer is 1 - 2.5 : 1.
  • the present invention also provides a circuit breaker, comprising a moving contact assembly and a static contact assembly.
  • the moving contact assembly comprises a moving contact support and a moving contact disposed on the moving contact support.
  • the static contact assembly comprises a static contact support as described above, and a static contact disposed on the static contact support and capable of contacting the moving contact.
  • the side of the static contact support which is close to the moving contact assembly is the base layer, while the side of the static contact support which is remote from the moving contact assembly is the reinforcing layer.
  • the static contact is connected to the base layer.
  • Fig. 1 is a structural schematic diagram intended to illustrate a schematic embodiment of a static contact support for a circuit breaker.
  • the circuit breaker comprises a static contact assembly 10 and a moving contact assembly 20.
  • the static contact assembly 10 comprises a static contact support 12 and a static contact 14.
  • the static contact 14 can be mounted on the static contact support 12.
  • the static contact support 12 comprises a base layer 122 and a reinforcing layer 124; the reinforcing layer 124 is superposed on the base layer 122.
  • the base layer 122 is made of a material with good heat-conducting and electricity-conducting properties, such as copper metal; the reinforcing layer 124 is made of a material with good mechanical strength and magnetic permeability, such as steel.
  • the reinforcing layer 124 is superposed on the base layer 122 by a process for combining two metals.
  • the moving contact assembly 20 comprises a moving contact support 22 and a moving contact 24; the moving contact 24 can be mounted on the moving contact support 22.
  • the side of the static contact support 12 which is close to the moving contact assembly 20 is the base layer 122, while the side of the static contact support which is remote from the moving contact assembly 20 is the reinforcing layer 124.
  • the static contact 14 which contacts the moving contact 24 is connected to the base layer 122.
  • the path formed by the static contact and base layer for conducting electricity and heat is the shortest, while the reinforcing layer can provide the base layer with mechanical support, and attract the arc between the moving contact and static contact into an arc extinguishing mechanism.
  • the base layer has good electricity-conducting and heat-conducting properties.
  • the reinforcing layer has good mechanical strength and magnetic permeability. On the one hand, this means it can reinforce the mechanical strength of the base layer; on the other hand, the magnetically permeable reinforcing layer can channel the arc into the arc extinguishing mechanism of the circuit breaker, so it is extinguished quickly. Furthermore, being superposed, the base layer and reinforcing layer can be conveniently fitted into the circuit breaker.
  • the static contact support for a circuit breaker, by adjusting the ratio of the thicknesses of the base layer and reinforcing layer, it is possible to adjust the heat-conducting properties, electricity-conducting properties, mechanical strength and magnetic permeability of the static contact support correspondingly.
  • the base layer is thicker, the static contact support has better heat-conducting and electricity-conducting properties, whereas when the reinforcing layer is thicker, the static contact support has better mechanical strength and magnetic permeability.
  • the ratio of the thickness of the base layer to the thickness of the reinforcing layer could be 2.5 : 1 or 1 : 1.

Description

    Technical field
  • The present invention relates to a static contact support, in particular to a static contact support for a small circuit breaker.
    • Background art
  • In a small circuit breaker, the current in a circuit under normal operating conditions can be established, carried and cut off by joining and separating a moving contact and a static contact. A micro circuit breaker can also carry and cut off an abnormal current within a given time in specified scenarios, for example under abnormal operating conditions such as overload and open circuit.
  • A static contact is mounted on a static contact support. When the moving contact separates from the static contact, the static contact support carries a very large current, and must also channel the arc produced between the moving and static contacts to an arc extinguishing system disposed in the circuit breaker. Existing static contact supports are made of copper-plated steel or pure copper. Static contact mounting supports of copper-plated steel have very good mechanical strength, but high resistivity, so generate a lot of heat when carrying a current. Static mounting supports of pure copper have low resistivity, but also low mechanical strength and low magnetic permeability, so they are unable to extinguish the arc produced between the moving and static contacts.
  • Further, in WO 2006/120140 A1 an electrical contact device, in particular for low-voltage switches and contractors is disclosed. The electrical contact device comprises a contact element produced in one piece. Said contact element comprises in particular a first conducting area and a second contact area, said first area and said second area being produced with materials of different type.
  • Furthermore, in WO 2010/079106 A1 a moving element for a low voltage switching device and a switching device comprising said moving element is disclosed. The moving element comprises for each pole a housing unit suitable to receive an elastic element which interacts with an electrical contact. This latter comprises a first contact portion susceptible to contact a further electrical contact and a second portion connectable to a conductive element of the switching device.
    Further, in GB 1164164 A a switch-gear contact with electrodynamic reinforcement of contact pressure is disclosed, which comprises a resiliently mounted pivotal part for abutting engagement with a contact and supported on a rigid part having portions substantially at right angles, with the part parallel and close to the pivotal part so that the current assists contact pressure. In breaking circuit the contact is tilted by a spring so that the leading edge first makes contact before a break is made at the raised portion so that arcing at the portion is avoided. Owing to the hairpin shape of the current path the arc tends to be blown outwards by the electrodynamic forces.
  • Moreover, in US 2,788,421 a multi-pole circuit breaker is disclosed which includes a base and a cover of molded insulating material, an operating mechanism and a trip device.
    • Content of the invention
  • An object of the present invention is to provide a static contact support for a circuit breaker, which can help to extinguish an arc produced between a moving contact and a static contact in a circuit breaker.
  • Another object of the present invention is to provide a circuit breaker which uses the static contact support.
  • The present invention provides a static contact support for a circuit breaker, comprising a base layer and a reinforcing layer. The base layer is for transferring current passing through the circuit breaker. The reinforcing layer is superposed on the base layer, can provide the base layer with structural support, and can attract an arc produced between a moving contact and a static contact in the circuit breaker into an arc extinguishing mechanism of the circuit breaker, wherein the reinforcing layer and the base layer are superposed by a process for combining metals.
  • In the static contact support of the circuit breaker, an electrically conductive base layer on the one hand means that current flowing through the static contact support produces very little heat; on the other hand, good heat-conducting properties in the base layer enable the static contact support to cool the arc, helping to extinguish it. The reinforcing layer has good mechanical strength and magnetic permeability. On the one hand, this means it can reinforce the mechanical strength of the base layer; on the other hand, the magnetically permeable reinforcing layer can channel the arc into the arc extinguishing mechanism of the circuit breaker, so it is extinguished quickly. Furthermore, being superposed, the base layer and reinforcing layer can be conveniently fitted into the circuit breaker.
  • In another schematic embodiment of the static contact support of the circuit breaker, the base layer is made of copper metal. In another schematic embodiment of the static contact support of the circuit breaker, the reinforcing layer is made of steel.
  • In another schematic embodiment of the static contact support of the circuit breaker, the ratio of the thickness of the base layer to the thickness of the reinforcing layer is 1 - 2.5 : 1.
  • The present invention also provides a circuit breaker, comprising a moving contact assembly and a static contact assembly. The moving contact assembly comprises a moving contact support and a moving contact disposed on the moving contact support. The static contact assembly comprises a static contact support as described above, and a static contact disposed on the static contact support and capable of contacting the moving contact.
  • In another schematic embodiment of the circuit breaker, the side of the static contact support which is close to the moving contact assembly is the base layer, while the side of the static contact support which is remote from the moving contact assembly is the reinforcing layer.
  • In another schematic embodiment of the circuit breaker, the static contact is connected to the base layer.
    • Description of the accompanying drawing
  • The accompanying drawing below merely illustrates and explains the present invention schematically, without defining the scope thereof.
  • Key to labels
    • 10
    static contact assembly
    12
    static contact support
    122
    base layer
    124
    reinforcing layer
    14
    static contact
    20
    moving contact assembly
    22
    moving contact support
    24
    moving contact.
    Particular embodiments
  • To give a clearer understanding of the technical features, objects and effects of the present invention, particular embodiments thereof are now explained with reference to the accompanying drawings, in which identical labels denote identical components.
  • In this text, "schematic" means "serving as a real instance, example or illustration". No drawing or embodiment described herein as "schematic" should be interpreted as being a more preferred or more advantageous technical solution.
  • To make the drawings uncluttered, only those parts which are relevant to the present invention are shown schematically in each drawing; these parts do not represent the actual structure of the present invention as a product. Moreover, to make the drawings uncluttered and easy to understand, in certain drawings where there are components having the same structure or function, only one of these components is drawn schematically, or only one is labeled.
  • In this text, "one" not only means "just this one", but may also mean "more than one".
  • In this text, "upper", "lower", "front", "rear", "left" and "right", etc. are used only to indicate the positional relationship between relevant parts, without defining their absolute positions.
  • Fig. 1 is a structural schematic diagram intended to illustrate a schematic embodiment of a static contact support for a circuit breaker. As the figure shows, the circuit breaker comprises a static contact assembly 10 and a moving contact assembly 20.
  • The static contact assembly 10 comprises a static contact support 12 and a static contact 14. The static contact 14 can be mounted on the static contact support 12.
  • The static contact support 12 comprises a base layer 122 and a reinforcing layer 124; the reinforcing layer 124 is superposed on the base layer 122. The base layer 122 is made of a material with good heat-conducting and electricity-conducting properties, such as copper metal; the reinforcing layer 124 is made of a material with good mechanical strength and magnetic permeability, such as steel. In a schematic embodiment of the static contact support for a circuit breaker, the reinforcing layer 124 is superposed on the base layer 122 by a process for combining two metals.
  • The moving contact assembly 20 comprises a moving contact support 22 and a moving contact 24; the moving contact 24 can be mounted on the moving contact support 22.
  • In a schematic embodiment of the static contact support for a circuit breaker, the side of the static contact support 12 which is close to the moving contact assembly 20 is the base layer 122, while the side of the static contact support which is remote from the moving contact assembly 20 is the reinforcing layer 124. The static contact 14 which contacts the moving contact 24 is connected to the base layer 122. With such an arrangement, the path formed by the static contact and base layer for conducting electricity and heat is the shortest, while the reinforcing layer can provide the base layer with mechanical support, and attract the arc between the moving contact and static contact into an arc extinguishing mechanism. In the static contact support for a circuit breaker, the base layer has good electricity-conducting and heat-conducting properties. On the one hand, this means that current flowing through the static contact support produces very little heat; on the other hand, the good heat-conducting properties of the base layer enable the static contact support to cool the arc, helping to extinguish it. The reinforcing layer has good mechanical strength and magnetic permeability. On the one hand, this means it can reinforce the mechanical strength of the base layer; on the other hand, the magnetically permeable reinforcing layer can channel the arc into the arc extinguishing mechanism of the circuit breaker, so it is extinguished quickly. Furthermore, being superposed, the base layer and reinforcing layer can be conveniently fitted into the circuit breaker.
    In a schematic embodiment of the static contact support for a circuit breaker, by adjusting the ratio of the thicknesses of the base layer and reinforcing layer, it is possible to adjust the heat-conducting properties, electricity-conducting properties, mechanical strength and magnetic permeability of the static contact support correspondingly. When the base layer is thicker, the static contact support has better heat-conducting and electricity-conducting properties, whereas when the reinforcing layer is thicker, the static contact support has better mechanical strength and magnetic permeability. For example, the ratio of the thickness of the base layer to the thickness of the reinforcing layer could be 2.5 : 1 or 1 : 1.
  • It should be understood that although the description given herein is based on different embodiments, it is by no means the case that each embodiment comprises just one independent technical solution. The description is written in this way purely for the sake of clarity. Those skilled in the art should consider the description in its entirety; technical solutions from different embodiments can also be suitably combined to form other embodiments capable of being understood by those skilled in the art.
  • The detailed explanations set out above are merely specific explanations of feasible embodiments, and are not intended to limit the scope of protection of the present invention.

Claims (7)

  1. A static contact support (12) for a circuit breaker, characterized in that it comprises:
    a base layer (122) for transferring current passing through the circuit breaker; and
    a reinforcing layer (124), which is superposed on the base layer (122) and can provide the base layer (122) with structural support, characterized in that the reinforcing layer (124) can attract an arc produced between a moving contact and a static contact in the circuit breaker into an arc extinguishing mechanism of the circuit breaker, wherein the reinforcing layer (124) and the base layer (122) are superposed by a process for combining two metals.
  2. The static contact support according to claim 1, wherein the base layer (122) is made of copper metal.
  3. The static contact support according to any of the preceding claims, wherein the reinforcing layer (124) is made of steel.
  4. The static contact support according to any of the preceding claims, wherein the ratio of the thickness of the base layer to the thickness of the reinforcing layer is 1 - 2.5 : 1.
  5. A circuit breaker, characterized in that it comprises:
    a moving contact assembly (20), comprising a moving contact support (22) and a moving contact (24) disposed on the moving contact support (22); and
    a static contact assembly (10), comprising a static contact support (12) according to any one of claims 1 to 5 and a static contact (14) disposed on the static contact support (12) and capable of contacting the moving contact (24).
  6. The circuit breaker according to claim 5, wherein the side of the static contact support (12) which is close to the moving contact assembly (20) is the base layer (122), while the side of the static contact support which is remote from the moving contact assembly (20) is the reinforcing layer (124).
  7. The circuit breaker according to claim 5 or 6, wherein the static contact (14) is connected to the base layer (122).
EP14197126.7A 2014-01-07 2014-12-10 Static contact support for circuit breaker and circuit breaker thereof Active EP2905794B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410006862.5A CN104766770B (en) 2014-01-07 2014-01-07 The stationary contact bracket and its breaker of breaker

Publications (2)

Publication Number Publication Date
EP2905794A1 EP2905794A1 (en) 2015-08-12
EP2905794B1 true EP2905794B1 (en) 2018-04-25

Family

ID=52013957

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14197126.7A Active EP2905794B1 (en) 2014-01-07 2014-12-10 Static contact support for circuit breaker and circuit breaker thereof

Country Status (2)

Country Link
EP (1) EP2905794B1 (en)
CN (1) CN104766770B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106783428A (en) * 2016-10-13 2017-05-31 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） A kind of combined repulsion dish for electromagnetic repulsion mechanism

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1164164A (en) * 1915-03-01 1915-12-14 William Borer Wrench.
US2788421A (en) * 1953-05-12 1957-04-09 Westinghouse Electric Corp Circuit breaker contact structure
DE1175776B (en) 1962-01-31 1964-08-13 Siemens Ag Contact bridge for electrical switchgear
DE3142883A1 (en) 1981-10-29 1983-05-11 Schiele Kg, 7746 Hornberg Electrical switch contact
EP0079977A1 (en) 1981-11-21 1983-06-01 Sprecher & Schuh AG Contact piece for an electric switch apparatus, in particular for a protrective switch
DE19830232A1 (en) 1998-07-07 2000-01-13 Abb Research Ltd Current contact arrangements of a current switch
DE10019121A1 (en) 2000-04-18 2001-10-25 Moeller Gmbh Contact for electrical switch, has carrier region fabricated from one material with contacts of another material, and is produced by sintering process.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT251684B (en) * 1963-09-11 1967-01-10 Licentia Gmbh Electrical contact piece
CN2188237Y (en) * 1993-12-09 1995-01-25 中南工学院 Knife switch with strengthened elastic contact conductor element
ITBG20050020A1 (en) * 2005-05-11 2006-11-12 Abb Service Srl MULTI-COMPONENT ELECTRIC CONTACT
CN2924772Y (en) * 2005-12-05 2007-07-18 北京Abb低压电器有限公司 Static contact base, arc-quenching system for miniature circuit breaker and miniature circuit breaker
ITMI20090011A1 (en) * 2009-01-08 2010-07-09 Abb Spa MOBILE CREW FOR A LOW VOLTAGE INTERRUPT DEVICE AND INTERRUPTIVE DEVICE INCLUDING SUCH MOBILE CREW.
CN201622989U (en) * 2009-11-26 2010-11-03 无锡唯特电气技术有限公司 Miniature circuit breaker with high breaking capacity
JP5705738B2 (en) * 2010-02-12 2015-04-22 古河電気工業株式会社 Silver-coated composite material for movable contact parts, manufacturing method thereof, and movable contact parts
CN201673850U (en) * 2010-04-26 2010-12-15 南京业基电气设备有限公司 Load switch main-loop movable, static contact device
CN202473620U (en) * 2012-03-12 2012-10-03 毕新华 Copper and steel integrated static contact
CN202585291U (en) * 2012-05-16 2012-12-05 上海良信电器股份有限公司 Integrated thermomagnetic system supporting frame of small-size circuit breaker

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1164164A (en) * 1915-03-01 1915-12-14 William Borer Wrench.
US2788421A (en) * 1953-05-12 1957-04-09 Westinghouse Electric Corp Circuit breaker contact structure
DE1175776B (en) 1962-01-31 1964-08-13 Siemens Ag Contact bridge for electrical switchgear
DE3142883A1 (en) 1981-10-29 1983-05-11 Schiele Kg, 7746 Hornberg Electrical switch contact
EP0079977A1 (en) 1981-11-21 1983-06-01 Sprecher & Schuh AG Contact piece for an electric switch apparatus, in particular for a protrective switch
DE19830232A1 (en) 1998-07-07 2000-01-13 Abb Research Ltd Current contact arrangements of a current switch
DE10019121A1 (en) 2000-04-18 2001-10-25 Moeller Gmbh Contact for electrical switch, has carrier region fabricated from one material with contacts of another material, and is produced by sintering process.

Also Published As

Publication number Publication date
CN104766770B (en) 2017-09-08
EP2905794A1 (en) 2015-08-12
CN104766770A (en) 2015-07-08

Similar Documents

Publication Publication Date Title
EP2251887B1 (en) Electromagnetic trip device
WO2012020526A1 (en) Circuit breaker
US8159319B2 (en) Double-breaking contact system for a low voltage circuit breaker, a molded case circuit breaker comprising the double-breaking contact system, and a method for breaking a circuit
EP2577698B1 (en) Switch unit with arc-extinguishing units
JP6103489B2 (en) Arc extinguishing mechanism of DC switch, DC switch and DC circuit breaker having the arc extinguishing mechanism
CN101989518B (en) Phase-line and neutral-line type residual current action breaker
EP2920803B1 (en) Arc runner assembly and circuit interrupter
CN101625934A (en) Circuit breaker
EP3223293B1 (en) Electrical switching apparatus, and arc chamber assembly and associated circuit protection method
CN102024633A (en) Arc striking/extinguishing mechanism of low-voltage circuit breaker
EP2905794B1 (en) Static contact support for circuit breaker and circuit breaker thereof
US9412549B2 (en) Electromagnetically enhanced contact separation in a circuit breaker
GB2536765A (en) Circuit breaker
CN107622908B (en) Movable double-loop contact structure and vacuum arc-extinguishing chamber
US10256059B2 (en) Magnetic switch
JP2012089295A (en) Circuit breaker
CN201069749Y (en) DC breaker
JP6044927B2 (en) DC switch and DC circuit breaker
JP2007149586A (en) Circuit breaker
US20120176210A1 (en) Circuit interruption device and method of assembly
RU2013126192A (en) CIRCUIT BREAKER
CN107204263B (en) Refer to the slot motor construction of breaker for high-amperage more
JP2012204055A (en) Arc-extinguishing device and air break switch
CN107342196B (en) Arc extinguishing device of high-breaking plastic casing type circuit breaker
CN219497669U (en) Contactor and electric device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20160212

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

17Q First examination report despatched

Effective date: 20160824

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20180103

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ZHOU, GANG

Inventor name: BAO, ZHANG YAO

Inventor name: WANG, YANG

Inventor name: SHEN, XIAN

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 993728

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180515

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602014024362

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20180425

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180725

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180726

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 993728

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180425

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180827

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 602014024362

Country of ref document: DE

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: EATON INDUSTRIES GMBH

Effective date: 20190110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20181210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181210

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20181231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181231

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181231

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180425

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180425

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20141210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180825

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20220620

Year of fee payment: 9

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230510

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20231220

Year of fee payment: 10

Ref country code: FR

Payment date: 20231214

Year of fee payment: 10