H - Electricity – 02 – K
Patent
H - Electricity
02
K
H02K 13/00 (2006.01) H02K 5/14 (2006.01)
Patent
CA 2514444
The present utility model discloses a DC motor with carbon brush positioned outside. The motor includes a front cover, housing, magnets, a rotor, a commutator and a rear cover. Two fitting holes, in which a brush frame, a brush guide, and a brush are disposed one in another in sequence, are disposed on the outer wall of the rear cover. The brush contacts with the commutator of the rotor through pressing the spring on the brush cap. Meanwhile the outward end of the brush connects to a copper plate, which is pressed to the rear end of the guide by the brush cap, through a connection wire. It is characterized In that the power supply outlet leads from the copper plate terminal on the outer wall of the guide. The electric connection of the carbon brush of the present utility model is reliable because it is led out from the guide by the connection wire and the copper plate. When the wear and tear condition of the brush is needed to be checked or the brush should be changed, the brush can be took out just by opening the brush cap on the rear of the brush frame. Therefore, the DC motor with carbon brush positioned outside of the present utility model is simple in structure, convenient in installation, small in size, reliable in operating, convenient in checking and changing the brush, and able to prolong the life of the motor.
L'invention concerne un moteur c.c. à balai de charbon externe, qui comprend un couvercle avant, une enceinte, des aimants, un rotor, un commutateur et un couvercle arrière. Deux trous d'adaptation dans lesquels prennent place un cadre de balai, un guide de balai et un balai, en séquence, se trouvent sur la paroi externe du couvercle arrière. Le balai est en contact avec le commutateur du rotor par appui sur le ressort qui se trouve sur le couvercle de balai. Par ailleurs, l'extrémité externe du balai est reliée à une plaque en cuivre, appuyée contre l'extrémité arrière du guide par le couvercle de balai, via un fil de connexion. La sortie d'alimentation part de la borne de la plaque de cuivre sur la paroi externe du guide. La connexion électrique du balai de charbon est fiable car elle est conduite hors du guide par le fil de connexion et la plaque de cuivre Lorsqu'il faut vérifier l'usure du balai ou changer le balai, on peut simplement sortir celui-ci en ouvrant son couvercle à l'arrière du cadre de balai. Il s'agit donc d'un moteur c.c. à balai de charbon externe, de structure simple, d'installation commode, de petite taille, d'exploitation fiable, facile à vérifier et à changer, et capable de prolonger la durée de vie du moteur.
Xu Xiaohua
Norton Rose Or S.e.n.c.r.l.,s.r.l./llp
Xu Xiaohua
LandOfFree
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