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1. (WO1991006112) MELTABLE SAFETY DEVICE ON AN ELECTRICAL CONTACTOR OF VENTILATOR THERMOCONTACTS OR THE LIKE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/006112 International Application No.: PCT/FR1990/000748
Publication Date: 02.05.1991 International Filing Date: 17.10.1990
IPC:
F01P 11/16 (2006.01) ,H01H 37/00 (2006.01) ,H01H 37/76 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
P
COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
11
Component parts, details, or accessories, not provided for in, or of interest apart from, groups F01P1/-F01P9/149
14
Indicating devices; Other safety devices
16
concerning coolant temperature
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
37
Thermally-actuated switches
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
37
Thermally-actuated switches
74
Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
76
Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
Applicants:
BOURGIN, Alain [FR/FR]; FR
Inventors:
BOURGIN, Alain; FR
Priority Data:
89/1395419.10.1989FR
Title (EN) MELTABLE SAFETY DEVICE ON AN ELECTRICAL CONTACTOR OF VENTILATOR THERMOCONTACTS OR THE LIKE
(FR) DISPOSITIF DE SECURITE FUSIBLE SUR CONTACTEUR ELECTRIQUE DES THERMOCONTACTS DE VENTILATEUR OU ANALOGUE
Abstract:
(EN) The invention relates to a device which causes a safety locking of the electrical contactor of faulty ventilator thermocontacts or the like. The device is placed in the thermocontact element. It comprises a stationary contact (5), a movable contact (6), a safety return spring (11), and one or more pins or weld seams (12) made of a eutectic alloy and meltable at a predetermined temperature. When the temperature rises above a predetermined abnormal level, the meltable pins (12) change from a solid state to a liquid state, and the tensioned safety return spring brings the movable contact (6), which moves freely on slides, back against the contactor (4), thereby creating a link between connectors (8 and 9). This link immediately triggers the operation of the disengageable ventilator or the like.
(FR) L'invention concerne un dispositif permettant un enclenchement de sécurité du contacteur électrique des thermocontacts de ventilateur ou analogue défaillants. Ce dispositif est inséré dans l'élément thermocontact. Il est constitué d'une enclume fixe (5), d'une enclume mobile (6), d'un ressort de rappel de sécurité (11), de goupille(s) ou soudure(s) fusible à température (12) prédéterminée en alliage eutectique. Lors d'une élévation de température anormale prédéterminée, les goupilles fusibles (12) passent de l'état solide à l'état liquide, et le ressort de sécurité de rappel (11), de par sa traction, ramène l'enclume mobile (6) libérée sur glissières, en butée sur le contacteur (4), permettant ainsi une liaison entre les bornes (8 et 9). Cette liaison enclenche immédiatement la mise en service du ventilateur débrayable ou analogue.
Designated States: AU, BR, CA, JP, SU, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
EP0450046CA2044259FR2653591AU1990067100