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11. 发明公开

EP2413337A4 ELECTRICAL CONTACT MATERIAL 审中-公开
标题翻译：电接触材料
公开(公告)号：EP2413337A4
公开(公告)日：2014-08-20
申请号：EP10755584
申请日：2010-03-03
申请人： ALMT CORP
发明人： HATAKEYAMA TAKASHI , UENISHI NOBORU , SUZUKI YASUHIKO , GOMA NORIHITO
IPC分类号： H01H1/023 , C22C1/05 , C22C1/10 , C22C5/06 , C22C32/00 , H01H1/0233 , H01H1/027
CPC分类号： H01H1/023 , C22C1/05 , C22C1/10 , C22C5/06 , H01H1/0233 , H01H1/027
摘要： Provided are an electrical contact material capable of reducing wear-out rates after breaking tests in an overload test and a short-circuit test of a breaker or the like; and an electrical contact material capable of preventing welding after breaking tests in a short-circuit test of a breaker or the like. The electrical contact material (31) according to one aspect includes 4% by mass or more and 7% by mass or less of graphite, the remainder is composed of silver and an unavoidable impurity, a deflection thereof is greater than or equal to 0.5 mm, a Vickers hardness thereof is greater than or equal to 55, and an oxygen content therein is less than or equal to 100 ppm. It is preferable that the electrical contact material (31) further includes a tungsten carbide. It is preferable that an average particle diameter of the tungsten carbide is greater than or equal to 40 nm and less than or equal to 3 µm and a content of the tungsten carbide is greater than or equal to 2% by mass and less than or equal to 4% by mass. The electrical contact material (31) according to another aspect includes 0.5% by mass or more and 2% by mass or less of graphite, the remainder is composed of silver and an unavoidable impurity, a deflection thereof is greater than or equal to 0.8 mm, a Vickers hardness thereof is greater than or equal to 40, and an oxygen content therein is less than or equal to 100 ppm.

12. 发明公开

EP4276864A1 VACUUM INTERRUPTER 审中-实审
公开(公告)号：EP4276864A1
公开(公告)日：2023-11-15
申请号：EP22172209.3
申请日：2022-05-08
申请人： ABB SCHWEIZ AG
发明人： REUBER, Christian , GENTSCH, Dietmar , GORLT, Kai , SCHMOELZER, Thomas
IPC分类号： H01H1/02 , H01H1/023 , H01H1/0233 , H01H1/025 , H01H1/027 , H01H1/04 , H01H33/664
摘要： The present invention relates to a vacuum interrupter, comprising:
- a first carrier (101); and
- a second carrier (102);
wherein the first carrier comprises a stem (10) and a contact piece (1);
wherein the second carrier comprises a stem (10) and a contact piece (1);
wherein the contact piece of the first carrier comprises a first contact part (30) and a second contact part (20) surrounding the first contact part;
wherein the contact piece of the second carrier comprises a first contact part (30) and a second contact part (20) surrounding the first contact part; and
wherein a material of at least a portion of the first contact part of the first carrier is different to a material of the second contact part of the first carrier; and/or wherein a material of at least a portion of first contact part of the second carrier is different to a material of the second contact part of the second carrier.

14. 发明授权

EP3382730B1 LOW VOLTAGE CIRCUIT BREAKER 有权
公开(公告)号：EP3382730B1
公开(公告)日：2020-03-04
申请号：EP18161778.8
申请日：2018-03-14
申请人： ABB Schweiz AG
发明人： Schmoelzer, Thomas , Hoidis, Markus , Dell Oro, Enrico , Cantini, Chiara , Antoniazzi, Antonello , Simon, Reinhard
IPC分类号： H01H1/0233

15. 发明公开

EP3382730A1 LOW VOLTAGE CIRCUIT BREAKER 有权
公开(公告)号：EP3382730A1
公开(公告)日：2018-10-03
申请号：EP18161778.8
申请日：2018-03-14
申请人： ABB Schweiz AG
发明人： Schmoelzer, Thomas , Hoidis, Markus , Dell Oro, Enrico , Cantini, Chiara , Antoniazzi, Antonello , Simon, Reinhard
IPC分类号： H01H1/0233
摘要： A low voltage circuit breaker (100) is provided. The low voltage circuit breaker (100) includes a contact system (110) with a first contact (112) and a second contact (114) that are electrically connectable and disconnectable relative to one another. The first contact (112) includes a body (b) having a first layer (11) and a second layer (12), wherein the first layer (11) is arranged on the second layer (12) and is configured to come in contact with the second contact (114) for providing the electrical connection with the second contact (114). The first layer (11) has a first material composition having an Ag content that is higher than an Ag content of a second material composition of the second layer (12). Further, the first material composition has a WC content that is lower than a WC content of the second material composition.

16. 发明公开

EP2838096A1 Electrical contact system 有权
标题翻译：连接系统
公开(公告)号：EP2838096A1
公开(公告)日：2015-02-18
申请号：EP14179785.2
申请日：2014-08-05
申请人： General Electric Company
发明人： Karkada, Nagaveni , Ramachandran, Gopi Chandran , Asokan, Thangavelu
IPC分类号： H01H1/0233 , H01H1/025
CPC分类号： H01H33/10 , H01H1/0233 , H01H1/025 , H01H11/048 , Y10T29/49206
摘要： A system including a contact tip that includes an arcing surface 26, a base surface 24, and a graded structure 40 is presented. The graded structure includes a first region 50 comprising a first surface 52 proximate to the arcing surface 26, a second region 60 comprising a second surface 62 proximate to the base surface 24, and an intermediate region 70 disposed between the first region 50 and the second region 60. A concentration of silver in the graded structure 40 decreases from the first surface 52 to the second surface 62. A method of forming a contact tip includes preparing starting materials for a first region 50, an intermediate region 70, and a second region 60 of the contact tip. The starting materials of the first, intermediate, and second regions are sequentially added to a container to form a graded blend of starting materials. The graded blend of starting materials are compacted and heat-treated to form a contact tip having a graded structure 40.
摘要翻译：呈现包括电弧表面26，基面24和渐变结构40的接触尖端的系统。分级结构包括第一区域50，第一区域50包括接近电弧表面26的第一表面52，第二区域60，其包括靠近基底表面24的第二表面62以及设置在第一区域50和第二区域50之间的中间区域70。梯度结构40中的银浓度从第一表面52减小到第二表面62.形成接触尖端的方法包括制备用于第一区域50，中间区域70和第二区域的起始材料 60的接触尖端。将第一，中间和第二区域的起始材料依次加入到容器中以形成起始材料的分级混合物。起始材料的分级混合物被压实和热处理以形成具有渐变结构40的接触尖端。

17. 发明授权

EP2838096B1 Electrical contact system 有权
标题翻译：电接触系统
公开(公告)号：EP2838096B1
公开(公告)日：2017-07-19
申请号：EP14179785.2
申请日：2014-08-05
申请人： General Electric Company
发明人： Karkada, Nagaveni , Ramachandran, Gopi Chandran , Asokan, Thangavelu
IPC分类号： H01H1/0233 , H01H1/025
CPC分类号： H01H33/10 , H01H1/0233 , H01H1/025 , H01H11/048 , Y10T29/49206

18. 发明授权

EP2909849B1 DISPOSITIF D'ÉTABLISSEMENT ET/OU DE COUPURE DE COURANT À CONTACTS PERMANENTS À USURE RÉDUITE 有权转让
标题翻译：与减少磨损的长期接触STROMVERBINDUNGS-和/或分离装置
公开(公告)号：EP2909849B1
公开(公告)日：2016-12-07
申请号：EP13777286.9
申请日：2013-10-17
申请人： General Electric Technology GmbH
发明人： AITKEN, Oana , FNINECHE, Chakib
IPC分类号： H01H33/02 , H01H33/12 , H01H1/04 , H01H1/02 , H01H1/38 , H01H1/0233 , H01H1/0237 , H01H33/78
CPC分类号： H01H33/025 , H01H1/02 , H01H1/0233 , H01H1/0237 , H01H1/385 , H01H33/12 , H01H33/78 , H01H2201/008 , H01H2201/026

19. 发明公开

EP2826874A4 METHOD FOR PREPARING SILVER-BASED ELECTRICAL CONTACT MATERIAL 有权
标题翻译：在银基上生产电接点材料的方法
公开(公告)号：EP2826874A4
公开(公告)日：2015-11-25
申请号：EP13768524
申请日：2013-03-29
申请人： SCHNEIDER ELECTRIC IND SAS
发明人： LIU NAN , ZHAO BINYUAN , LAI YIJIAN
IPC分类号： C22C1/05 , B22F1/02 , C22C5/06 , C22C32/00 , H01H1/0233
CPC分类号： H01B1/04 , B22F1/02 , B22F9/24 , B22F2304/056 , B22F2304/058 , B22F2304/10 , B22F2998/10 , C01B32/25 , C22C1/05 , C22C5/06 , C22F1/14 , H01B1/02 , H01H1/023 , H01H1/027 , H01H11/04 , H01H11/048 , H01H2300/036 , B22F1/0059 , B22F3/10
摘要： The present invention relates to a new method for preparing a silver-based electrical contact material, comprising following steps of: (a) providing a carbonaceous mesophase solution; (b) adding a silver source into the carbonaceous mesophase solution and stirring to obtain a compound; (c) removing a solvent from the compound to obtain a solid; (d) performing a heat treatment on the solid, and obtaining a silver-based electrical contact material. The silver source is silver powder prepared by means of a chemical method. By means of the method, a uniform carbonaceous coating on silver is implemented, the silver is uniformly distributed in a nanometer scale, and a diamond is generated in situ of a material after being sintered. The silver-based electrical contact material processed by means of this method shows an excellent mechanical wear resistance and electrical property.

20. 发明公开

EP2909849A1 DISPOSITIF D'ÉTABLISSEMENT ET/OU DE COUPURE DE COURANT À CONTACTS PERMANENTS À USURE RÉDUITE 有权转让
标题翻译：与减少磨损的长期接触STROMVERBINDUNGS-和/或分离装置
公开(公告)号：EP2909849A1
公开(公告)日：2015-08-26
申请号：EP13777286.9
申请日：2013-10-17
申请人： ALSTOM Technology Ltd
发明人： AITKEN, Oana , FNINECHE, Chakib
IPC分类号： H01H1/04 , H01H1/02 , H01H33/12 , H01H1/38 , H01H1/0233 , H01H1/0237
CPC分类号： H01H33/025 , H01H1/02 , H01H1/0233 , H01H1/0237 , H01H1/385 , H01H33/12 , H01H33/78 , H01H2201/008 , H01H2201/026
摘要： The invention relates to a current connection and/or cut-off device comprising a pair of permanent contacts (3, 4), at least one of the contacts (3, 4) of the pair being movable. At least one permanent contact (3, 4) of the pair comprises a main part (3.1, 4.1) having a free end and a terminal protection part (3.2, 4.2) secured to the free end of the main part (3.1, 4.1), and comes into mechanical and electrical contact with the other permanent contact (4, 3) of the pair only during an opening or closing manoeuvre of the pair. Said terminal protection part (3.2, 4.2) is made from a unique transition metal having a melting temperature that is strictly higher than that of the main part (3.1, 4.1) to which it is secured, or an oxide or a carbide of such a metal, or a zinc oxide. The invention is particularly applicable to high-voltage or medium-voltage circuit breakers.

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