Method of fusing commutator risers to armature coil in...

H - Electricity – 02 – K

Patent

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H02K 13/04 (2006.01) H01R 39/32 (2006.01)

Patent

CA 2124457

A method which permits easy fusion of commutator risers to armature coils of an electric motor. When there are 20 risers, for example, 10 through-holes are formed in the boss portion of the armature core of the motor, each through-hole being so sized that the back surfaces of two adjacent risers are exposed through each through-hole. Sub-electrodes are inserted into the through-holes such that each sub-electrode supports the back side of the two risers exposed through the through-hole which receives this sub-electrode. First and second main electrodes are so arranged that the first electrode contacts with the first riser of the first riser group exposed through the first through-hole while the second main electrode contacts the second riser of the sixth riser group exposed through the sixth through-hole. After conducting fusing on these risers, the main electrodes are shifted into contact with the risers which are the second as counted from the risers which have just been fused, and fusion is conducted on these risers. This operation is repeated until all the risers are fused.

Cette invention concerne une méthode efficace de soudage des radiales d'un collecteur aux enroulements d'induit d'un moteur électrique. Lorsque, par exemple, le collecteur compte 20 radiales, on perce 10 trous traversants dans la collerette du collecteur, chaque trou ayant une taille telle que les faces arrière de deux radiales adjacentes soit visibles. On insère des sous-électrodes des les trous de manière que chaque sous-électrode soutienne les deux radiales exposées par le trou. Une première et une seconde électrodes principales sont disposées de manière que la première soit en contact avec la première radiale de la première paire exposée par le premier trou et que la seconde soit en contact avec la seconde radiale de la sixième paire exposée par le sixième trou. Après le soudage de ces radiales, les électrodes principales sont déplacées de manière à les mettre en contact avec la seconde radiale à partir de celle qui vient d'être soudée. Après le soudage de ces dernières, le procédé est répété jusqu'à ce que toutes les radiales aient été soudées.

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