Electric saw communication

H - Electricity – 02 – K

Patent

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Details

H02K 29/08 (2006.01) B23D 45/02 (2006.01) B24B 51/00 (2006.01) B28D 1/04 (2006.01) B24B 49/00 (2006.01)

Patent

CA 2716871

The present invention relates to an electric saw (1) being powered by an external power supply (200) through a multicore cable (6). The multicore cable (6) includes electrical wires (24, 25, 27) for supplying power to the motors (5, 12, 13) of the electric saw (1) and communication wires (26) for data communication between the electric saw (1) and the power supply (200). Two motors (12, 13) of the electric saw are three phase permanent magnet motors (12, 13), with an outer rotor (31) and an inner stator (30). Each of the two motors (12, 13) has three Hall Effect sensors (H1, H2, H3) located around the outer rotor (31).

La présente invention concerne une scie électrique (1) alimentée par une alimentation électrique externe (200) par lintermédiaire dun câble multiconducteur (6). Le câble multiconducteur (6) comprend des fils électriques (24, 25, 27) permettant dalimenter en puissance les moteurs (5, 12, 13) de la scie électrique (1) et les câbles de communication (26) prévus pour la communication de données entre la scie électrique (1) et lalimentation électrique (200). Deux moteurs (12, 13) de la scie électrique sont des moteurs (12, 13) à aimant permanent triphasés, avec un rotor externe (31) et un stator interne (30). Chacun des deux moteurs (12, 13) est pourvu de trois capteurs à effet Hall (H1, H2, H3) positionnés autour du rotor externe (31).

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