EP 3428942 B1 20200701 - DIRECT CURRENT DEVICE FOR ELIMINATING ARCING AND ELECTROMECHANICAL DIRECT CURRENT SWITCHING DEVICE
Title (en)
DIRECT CURRENT DEVICE FOR ELIMINATING ARCING AND ELECTROMECHANICAL DIRECT CURRENT SWITCHING DEVICE
Title (de)
GLEICHSTROM-LICHTBOGENLÖSCHVORRICHTUNG UND ELEKTROMECHANISCHES GLEICHSTROM-SCHALTGERÄT
Title (fr)
DISPOSITIF D'EXTINCTION D'ARC DE COURANT CONTINU ET APPAREIL DE COMMUTATION DE COURANT CONTINU ÉLECTROMÉCANIQUE
Publication
Application
Priority
DE 102017212033 A 20170713
Abstract (en)
[origin: CN109256291A] The invention relates to a motor-type switch device (1), especially a direct current arc extinction device used for a direct current protection switch. The device is equipped with an arc extinction cavity (20) equipped with multiple arc extinction sheets (21) which are spaced and parrally arranged. The arc extinction device is also equipped with an arc extinction production cavity (30) which is closely arranged ahead of the arc extinction cavity (20). The arc extinction production cavity is equipped with a vertical middle plane (L) pointing towards the arc extinction production cavity and permanent magnets (31) arranged on two sides of the vertical middle plane (L). According to the device, the arc extinction device is equipped with an odd number of permanent magnets (31) with same magnetic property. The permanent magnets (31) arranged on two sides of the arc extinction production cavity (30) along the first direction (R1) orthogonal relative to the vertical middle plane (L) in order to form an asymmetrical magnetic field. The arrangement mode that the permanent magnets (31) are arranged in a line along first direction (R1) achieves a compact structure along the vertical directionof the switch device (1). The compact structure can be closely connected ahead of the arc extinction cavity (20) and applies significant magnetic force (F) to an electric arc (11) located in the arc extinction cavity (20).
IPC 8 full level
H01H 9/44 (2006.01); H01H 9/34 (2006.01); H01H 33/59 (2006.01)
CPC (source: CN EP)
H01H 9/443 (2013.01 - CN EP); H01H 9/346 (2013.01 - EP); H01H 33/596 (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
DOCDB simple family (publication)
EP 3428942 A1 20190116; EP 3428942 B1 20200701; CN 109256291 A 20190122; CN 114551131 A 20220527; DE 102017212033 A1 20190117
DOCDB simple family (application)
EP 18172922 A 20180517; CN 201810756225 A 20180711; CN 202210245182 A 20180711; DE 102017212033 A 20170713