H - Electricity – 01 – H
Patent
H - Electricity
01
H
H01H 33/18 (2006.01) H01H 9/36 (2006.01) H01H 9/44 (2006.01)
Patent
CA 2215896
A contactor for switching electric current has a stationary contact and a movable contact which when driven by a solenoid moves into and away from abutment with the stationary contact. An arc extinguishing chamber is adjacent to the movable and stationary contacts and includes two rows of splitter plates with a gap therebetween. Each row comprises alternating splitter plates of first and second types. The first type of splitter plate has a first member of non-magnetic material with an aperture within which a permanent magnet is received and a second member of a magnetic material abutting the first member remote from the gap. An outer casing of a non-ferrous, electrically conductive material extends at least partially around the first and second members. The second type of splitter plates are formed of non-ferrous, electrically conductive material. The magnets produce a magnetic field around each of the first type of splitter plates which causes the electric arc to move about the surface of the outer casing.
Cette invention concerne un contacteur électrique comportant un contact fixe et un contact mobile mis en contact avec le contact fixe et séparé de celui-ci par électroaimant. Le contacteur comporte également un boîtier de soufflage d'arc contigu aux contacts mobile et fixe et renfermant deux rangées d'ailettes de fractionnement séparées par un entrefer. Chaque rangée comprend deux types d'ailettes, alternés. Le premier type comporte un premier élément en matériau amagnétique présentant une ouverture où est logé un aimant permanent et un deuxième élément en matériau magnétique touchant au premier élément en retrait de l'entrefer. Une enveloppe extérieure en matériau conducteur non ferreux entoure au moins partiellement les deux éléments susmentionnés. Le deuxième type est en matériau conducteur non ferreux. Les aimants créent un champ magnétique autour de chacune des ailettes du premier type, ce qui force l'arc à se déplacer le long de la surface de l'enveloppe extérieure.
Juds Mark A.
Moldovan Peter K.
Borden Ladner Gervais Llp
Corporation Eaton
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