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1. 发明授权

EP2879145B1 Electrical contact materials and method for preparing the same 有权
公开(公告)号：EP2879145B1
公开(公告)日：2018-10-17
申请号：EP14192982.8
申请日：2014-11-13
申请人： LSIS Co., Ltd. , Research & Business Foundation Sungkyunkwan University
发明人： Park, Ki Hun , Song, In Chan , Baik, Seung Hyun , Lee, Dong Mok , Sim, Jeong Hyeon
IPC分类号： H01H1/021 , C04B35/628 , H01H1/027
CPC分类号： H01B1/02 , B22F2003/1051 , B22F2201/20 , B22F2202/01 , C04B35/01 , C04B35/0435 , C04B35/047 , C04B35/62876 , C04B35/62889 , C04B35/62892 , C04B35/66 , C04B2235/3222 , C04B2235/5472 , C04B2235/656 , C04B2235/77 , C04B2235/96 , C04B2235/9615 , C22C1/0425 , C22C1/0433 , C22C1/0466 , C22C5/02 , C22C5/06 , C22C5/08 , C22C9/06 , C22C19/002 , C22C19/03 , C22C32/0021 , C22C32/0084 , C22C49/08 , C22C49/14 , H01B1/026 , H01B1/04 , H01B1/08 , H01H1/021 , H01H1/023 , H01H1/025 , H01H1/027
摘要： Disclosed are electrical contact materials and a method for preparing the same. The electrical contact material includes (i) one or more kinds of metals selected from the group consisting of silver (Ag), copper (Cu) and gold (Au), and an alloy of nickel (Ni); and (ii) carbon nano tubes (CNTs) coated with Ag nanoparticles, Ag plated CNTs, or Ag nanowires, or (i) one or more kinds of metals selected from the group consisting of Ag, Cu, Ni and Au; (ii) a metal oxide that is cadmium oxide, indium oxide, tin oxide, zinc oxide or mixture thereof; and (iii) CNTs coated with Ag nanoparticles, Ag plated CNTs, or Ag nanowires. Accordingly, it is possible to reduce the content of high-priced Ag and to obtain excellent electrical and mechanical properties.

2. 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.

3. 发明公开

EP0205897A2 Abbrandkontaktstück und Verfahren zur Herstellung eines solchen Abbrandkontaktstückes oder eines vergleichbaren Bauteils. 失效
标题翻译： Abbrandkontaktstück和用于制造这种Abbrandkontaktstückes或类似的组件的方法。
公开(公告)号：EP0205897A2
公开(公告)日：1986-12-30
申请号：EP86106610
申请日：1986-05-15
申请人： BBC BROWN BOVERI & CIE
发明人： GESSINGER GERNOT , SEBALJ RENATA , WIDL WOLFGANG
IPC分类号： B23K35/30 , C04B37/02 , H01H1/02 , H01H1/025 , H01H1/027 , H01H11/04 , H01H11/06 , H01H33/70
CPC分类号： H01H33/7023 , B23K35/302 , C04B37/026 , C04B2237/124 , C04B2237/125 , C04B2237/127 , C04B2237/385 , C04B2237/403 , C04B2237/406 , C04B2237/76 , C04B2237/84 , H01H1/027 , H01H11/04 , H01H33/7061
摘要： Ein vorzugsweise zum Schalten von Hochspannung vorgesehener elektrischer Schalter weist zwei längs einer Achse (2) miteinander in oder ausser Eingriff bringbare Abbrandkontaktstücke (6, 8) auf. Mindestens eines dieser Abbrandkontaktstücke (6, 8) weist in koaxialer Anordnung einen längs der Achse (2) erstreckten Kontaktträger (13, 14) und eine auf dem Kontaktträger (13, 14) befestigte, kohlenstoffhaltige Lichtbogenelektrode (15, 16) auf. Bei diesem Schalter soll unter Beibehaltung eines geringen Kontaktabbrandes die mechanische Festigkeit der Abbrandkontaktstücke vergleichsweise hoch sein. Zugleich soll ein Verfahren angegeben werden, mit dessen Hilfe solche Abbrandkontaktstücke und vergleichbare Teile in einfacher Weise hergestellt werden können. Dies wird dadurch erreicht, dass die Lichtbogenelektrode (z.B. 15, 16) Kohlenstoffasern und eine Kohlenstoffmatrix enthält, in welche die Kohlenstoffasern eingebettet sind. Hierbei werden die Lichtbogenelektroden (15, 16) vorzugsweise mittels eines Hochtemperaturlotes auf der Basis Kupfer und/oder Silber, welches mindestens ein karbidbildendes Element, wie etwa Cr, enthält, auf dem Kontaktträger (13, 14) befestigt.
摘要翻译： A优选具有两个用于彼此沿轴线（2）提供高电压电开关的切换，或者可以脱离接合Abbrandkontaktstücke的（6,8）。至少这些Abbrandkontaktstücke中的一个（6,8）包括以同轴布置的纵向轴线（2）延伸的触头承载器（13，14）和连接所述接触载体（13，14）的碳质弧电极（15，16）上。在这种开关中，Abbrandkontaktstücke的机械强度应是比较高的，同时保持低的接触腐蚀。与此同时，一种方法是由这种Abbrandkontaktstücke和相似的部件可以以简单的方式制造的装置提供。这是这样实现的弧电极（例如，15，16）的碳纤维和含有碳基质，其中所述碳纤维嵌入。这里，弧电极（15，16）优选地通过基于铜和/或银的高温焊料，其含有至少一个碳化物形成元素如Cr的方式固定，该接触载体（13，14）。

4. 发明公开

EP4318516A1 COMPOSITE MATERIAL FOR ELECTRICAL CONTACTS AND METHOD OF PRODUCING SAME 审中-实审
公开(公告)号：EP4318516A1
公开(公告)日：2024-02-07
申请号：EP21933381.2
申请日：2021-11-24
申请人： LS Electric Co., Ltd.
发明人： MOON, Chul Dong , CHO, Wook Dong , KIM, Won Young
IPC分类号： H01H1/023 , H01H11/04 , H01H1/027
摘要： The present invention relates to an electrical contact material that is a contact element that plays a role of blocking or allowing the flow of an electric circuit to pass through, and relates to an electrical contact composite material that satisfies the physical properties required to use as an electrical contact while reducing Ag content, and a method for manufacturing the same.

5. 发明公开

EP4218038A1 ELECTRIC CONTACT COMPRISING A METAL-GRAPHENE COMPOSITE LAYER 审中-实审
公开(公告)号：EP4218038A1
公开(公告)日：2023-08-02
申请号：EP21770279.4
申请日：2021-09-21
申请人： ABB SCHWEIZ AG
发明人： FRIBERG, Andreas , ANDERSSON, Anna , JOHANSSON, Erik
IPC分类号： H01H1/021 , H01H1/0237 , H01H1/027 , H01H11/04 , B22F1/00

7. 发明授权

EP1915765B1 WERKSTOFF AUF DER BASIS SILBER-KOHLENSTOFF UND VERFAHREN ZU DESSEN HERSTELLUNG 有权
标题翻译：材料，以银碳和方法及其
公开(公告)号：EP1915765B1
公开(公告)日：2010-08-04
申请号：EP06776736.8
申请日：2006-08-10
申请人： Umicore AG & Co. KG
发明人： KEMPF, Bernd , WOLMER, Roger , BOEHME, Carsten , ROTH, Werner , KOFFLER, Andreas
IPC分类号： H01H1/027 , B22F1/02
CPC分类号： C22C32/0084 , B22F2998/10 , B82Y30/00 , B82Y40/00 , C01B32/15 , H01H1/027 , Y10T428/2991 , H01B1/04 , B22F1/025 , B22F3/04 , B22F3/10 , B22F3/18
摘要： The invention relates to a method for producing a silver/carbon-based material, comprising the following steps: (i) providing a carbon particle suspension; and (ii) adding a solution from a silver compound and a reducing agent so that a silver-containing precipitate is deposited onto the carbon particles, the carbon particles having an average diameter of 200 nm or more. The invention also relates to materials obtained by this method, and to the use of the materials in protective switches for low-voltage power engineering.

8. 发明公开

EP2004551A2 PROCESS FOR MANUFACTURE OF SILVER-BASED PARTICLES AND ELECTRICAL CONTACT MATERIALS 审中-公开
标题翻译：工艺生产具有银基集团和开关触点颗粒材料
公开(公告)号：EP2004551A2
公开(公告)日：2008-12-24
申请号：EP07723739.4
申请日：2007-03-29
申请人： Umicore SA
发明人： GOIA, Dan, V. , FRITZSCHE, Sebastian , KEMPF, Bernd , BRAUMANN, Peter , VANDEVELDE, Thierry, Charles, Simon
IPC分类号： C01G5/00 , H01H1/027 , H01H1/021 , H01H11/04 , H01H1/0233 , H01H1/0237 , H01R13/03 , B22F1/00
CPC分类号： C01G5/00 , B22F1/0014 , B22F1/0018 , B22F9/24 , B82Y30/00 , C01P2004/64 , C01P2006/40 , H01H1/021 , H01H1/0233 , H01H1/0237 , H01H1/027 , H01H11/048 , H01R13/03
摘要： The invention is directed to a process for manufacture of fine precious metal containing particles, specifically silver-based particles and silver-based contact materials via an intermediate silver(+l)-oxide species. The process comprises in a first step the formation of a thermally instable silver (+l)-oxide species by adding a base to an aqueous silver salt solution comprising an organic dispersing agent. Due to the presence of the organic dispersing agent, the resulting silver (+l)-oxide species is thermally instable, thus the species is decomposing to metallic silver at temperature lower than 1000°C. The process optionally may comprise the addition of a powdered compound selected from the group of inorganic oxides, metals, and carbon-based compounds. Furthermore the process may contain additional separating and drying steps. The process is versatile, cost efficient and environmentally friendly and is used for the manufacture of silver-based particles and electrical contact materials. Silver nanoparticles made according to the process are characterized by a narrow particle size distribution. Electrical contact materials manufactured according to the process reveal improved contact welding properties.

9. 发明公开

EP4117000A1 MECHANISM FOR ELECTRICAL DEVICE 审中-实审
公开(公告)号：EP4117000A1
公开(公告)日：2023-01-11
申请号：EP21184284.4
申请日：2021-07-07
申请人： ABB S.p.A.
发明人： ANDERSSON, Anna , JOHANSSON, Erik , ZHAO, Su
IPC分类号： H01H1/027 , H01H3/62
摘要： The present disclosure relates to a mechanism (1) for an electrical device, comprising a plurality of metal parts which are not arranged for conducting an electrical current of which a first part (2a) comprises a first contact surface (3a) and a second part (2b) comprises a second contact surface (3b) arranged to move in relation to, and in contact with, the first contact surface. At least one of the first and second parts comprises a Graphene and Related Materials (GRM) at its contact surface, in a metal-GRM composite.

10. 发明公开

EP3971928A1 ELECTRIC CONTACT COMPRISING A METAL-GRAPHENE COMPOSITE LAYER 审中-公开
公开(公告)号：EP3971928A1
公开(公告)日：2022-03-23
申请号：EP20197503.4
申请日：2020-09-22
申请人： ABB Schweiz AG
发明人： FRIBERG, Andreas , ANDERSSON, Anna , JOHANSSON, Erik
IPC分类号： H01H1/021 , H01H1/0237 , H01H1/027 , H01H11/04 , B22F1/00
摘要： The invention relates to an electric contact configured to repeatedly closing and opening a conducting path by breaking and connecting an electrical circuit. The electric contact comprises a metal-graphene composite layer in which functionalized graphene is dispersed in a matrix of the metal, wherein the functionalized graphene is present in an amount within the range of from 0.05 wt% to 3 wt%.

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