EP 4059035 A1 20220921 - VACUUM CIRCUIT BREAKER WITH WELDABLE COPPER SWITCH CONTACTS
Title (en)
VACUUM CIRCUIT BREAKER WITH WELDABLE COPPER SWITCH CONTACTS
Title (de)
VAKUUMLEISTUNGSSCHALTER MIT VERSCHWEISSBAR AUSGESTALTETEN KUPFERSCHALTKONTAKTEN
Title (fr)
DISJONCTEUR À VIDE AVEC RACCORDS À SOUDER DE COMMUTATEUR EN CUIVRE
Publication
Application
Priority
- DE 102019219879 A 20191217
- EP 2020082400 W 20201117
Abstract (en)
[origin: WO2021121832A1] The present invention relates to a method for producing an electrical switch contact arrangement for a vacuum circuit breaker, said method comprising at least the steps: a) providing two electrical contact pieces made of copper or a copper alloy; b) coating the electrical contact pieces with aluminium or an aluminium alloy, the coating of the contact pieces taking place by means of a cold gas spraying method; c) welding each of the sides coated in method step b) to a current transfer contact; and d) arranging the units obtained in method step b) inside the vacuum circuit breaker. The invention further relates to an electrical switch contact arrangement for a vacuum circuit breaker with the contact pieces produced by the method according to the invention.
IPC 8 full level
H01H 33/664 (2006.01); H01H 1/02 (2006.01); H01H 11/04 (2006.01)
CPC (source: EP US)
H01H 1/02 (2013.01 - US); H01H 11/04 (2013.01 - US); H01H 33/6606 (2013.01 - EP); H01H 33/664 (2013.01 - EP US); H01H 1/0203 (2013.01 - EP); H01H 11/048 (2013.01 - EP); H01H 2001/0205 (2013.01 - EP)
Designated contracting state (EPC)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102019219879 A1 20210617; DE 102019219879 B4 20230202; CN 114830280 A 20220729; EP 4059035 A1 20220921; EP 4059035 B1 20231108; EP 4059035 C0 20231108; US 12068118 B2 20240820; US 2023017027 A1 20230119; WO 2021121832 A1 20210624
DOCDB simple family (application)
DE 102019219879 A 20191217; CN 202080088250 A 20201117; EP 2020082400 W 20201117; EP 20816117 A 20201117; US 202017786696 A 20201117