Contact device

Details Contact device Contact device

H - Electricity

01

H

H01H 50/02 (2006.01) H01H 1/66 (2006.01) H01H 50/38 (2006.01)

Patent

CA 2718970

A sealed receptacle (20) includes a case (21), a cylindrical member (22), and a closure plate (23). The sealed receptacle (20) is configured to house a fixed contact (31), a movable contact (40), and an arc protection member (60). The arc protection member (60) includes a peripheral wall (61), and a bottom (62). The peripheral wall (61) is configured to conceal a junction between the case (21) and the cylindrical member (22) from the fixed contact (31) and the movable contact (40). The bottom (62) is interposed between the movable contact (40) and the closure plate (23). The sealed receptacle (20) houses a contact pressure provision member (51) configured to bias the movable contact (40) to come into contact with the fixed contact (31). The contact pressure provision member (51) is interposed between the movable contact (40) and the bottom (62) so as to come into resilient contact with both the movable contact (40) and the bottom (62) irrespective of a position of the movable contact (40).

Selon l'invention, un contenant étanche (20) comprend un boîtier (21), un logement (22) et une plaque de fermeture (23). Le contenant étanche (20) contient des contacts fixes (31), un contact mobile (40) et une section de protection d'arc (60). La section de protection d'arc (60) comprend une paroi périphérique (61) et un fond (62). La paroi périphérique (61) protège le joint entre le boîtier (21) et le logement (22) contre les contacts fixes (31) et le contact mobile (40). Le fond (62) est placé entre le contact mobile (40) et la plaque de fermeture (23). En outre, le contenant étanche (20) contient un ressort d'application de pression de contact (51) pour amener le contact mobile (40) à entrer en contact avec les contacts fixes (31). Le ressort d'application de pression de contact (51) est monté entre le contact mobile (40) et le fond (62) de façon à être élastiquement en contact à la fois avec le contact mobile (40) et avec le fond (62) indépendamment de la position du contact mobile (40).

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