US 11,756,750 B2
Disconnector, particularly for photovoltaic applications
Andrea Mattarelli, Verona (IT)
Assigned to BREMAS ERSCE S.P.A., Cambiago (IT)
Filed by BREMAS ERSCE S.P.A., Cambiago (IT)
Filed on Jan. 28, 2022, as Appl. No. 17/587,878.
Claims priority of application No. 102021000020222 (IT), filed on Jul. 29, 2021.
Prior Publication US 2023/0033155 A1, Feb. 2, 2023
Int. Cl. H01H 1/36 (2006.01); H01H 3/46 (2006.01); H01H 3/50 (2006.01); H01H 9/02 (2006.01); H01H 9/26 (2006.01)
CPC H01H 9/26 (2013.01) [H01H 3/46 (2013.01); H01H 3/50 (2013.01); H01H 9/02 (2013.01); H01H 1/365 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A disconnector comprising: a stack of modular contact boxes surmounted by a snap-action switch box, each modular contact box comprising an accommodation body, each accommodation body having a central seat which accommodates a rotary contact and two peripheral seats, each one of which accommodates a connection portion of a respective fixed contact configured to be accessed from an outside of said modular contact box, said rotary contact being rotatable with respect to said accommodation body about a central axis of said central seat to engage/disengage with respect to the respective fixed contacts, each rotary contact comprising a central hole, the snap-action switch box comprising a driven indexing element rotatably associated with a spindle loading support configured to rotate with respect to said spindle loading support about the central axis, said snap-action switch box further comprising at least one spring connected between said spindle loading support and said driven indexing element in order to load said spindle loading support and said driven indexing element elastically with respect to each other following a mutual rotation about the central axis,
wherein the disconnector comprises a single actuation rod which passes through all the modular contact boxes coaxially to the central axis and is fixed in rotation to all the rotary contacts.