EP 0393182 B1 19940119 - DEVICE FOR PROTECTING ELECTRIC POWER RESISTANCES AND ANTI-OVERPRESSURE SYSTEM.
Title (en)
DEVICE FOR PROTECTING ELECTRIC POWER RESISTANCES AND ANTI-OVERPRESSURE SYSTEM.
Title (de)
SCHUTZANORDNUNG FÜR ELEKTRISCHE LEISTUNGSWIDERSTÄNDE UND ANTI-ÜBERDRUCKSYSTEM.
Title (fr)
DISPOSITIF DE PROTECTION DE RESISTANCES ELECTRIQUES DE PUISSANCE ET SYSTEME ANTI-SURPRESSION.
Publication
Application
Priority
FR 8812913 A 19881003
Abstract (en)
[origin: WO9004257A1] The invention relates to a device for the protection of electric power resistances, particularly grounding resistances assembled in batteries (2) by using conventional means such as rods, insulating guns and isolators inside a parallelipipedic metal casing (1), dust-tight and water jet-tight and containing nothing but air for the cooling of said resistances. The device is formed by four side panels (3), a bottom panel (5) and a top panel (4) which are assembled by fixing screws (9) and are provided with seals (10) in all assembly areas so that the electric continuity between two parts (3, 4, 5) is achieved through the fixing screws (9), despite any possible loosening, the device being characterized in that between two metal parts to be assembled (3, 4, 5), at right angle to the passages (8) of the fixing screws (9), is interleaved a compression element (12) which produces on the opposite faces a force (F) higher than the rigidity of said parts (3, 4, 5), the compression element being housed in the thickness of an appropriate cut-out (11) for the seal (10) providing for the contact tightness between the parts (3, 4, 5) without limiting the efficiency. Furthermore, the device is characterized in that the sealed housing (1) is provided with an anti-overpressure system such as a discharge valve or any other equivalent means, thereby limiting the risks of deformation of said housing (1), which, otherwise, would create sealing defects and even the breaking of the isolators.
IPC 1-7
IPC 8 full level
H01C 1/026 (2006.01)
CPC (source: EP US)
H01C 1/026 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
FR 2637412 A1 19900406; FR 2637412 B1 19901130; DE 68912572 D1 19940303; DE 68912572 T2 19940825; EP 0393182 A1 19901024; EP 0393182 B1 19940119; US 5077536 A 19911231; WO 9004257 A1 19900419
DOCDB simple family (application)
FR 8812913 A 19881003; DE 68912572 T 19891003; EP 89911572 A 19891003; FR 8900511 W 19891003; US 49932890 A 19900618