Motor having air circulating coil end

Details Motor having air circulating coil end Motor having air circulating coil end

1997-02-18

1998-05-26

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 52, 310 64, 310 65, 310 54, 310 60R, 310 62, H02K 900

Patent

active

057570957

ABSTRACT:
In a small starter motor which has a substantially closed space therein, it is necessary to blow out brush dust particles therefrom. On a coil end surface or both coil end surfaces of an armature, a fan generating an air circulation is formed utilizing gaps formed between individual coil ends on the surface without adding any other parts. Also, a side wall is disposed next to the coil end surface in parallel thereto which closes an axial end of a yoke in which the armature is coaxially disposed. In the space formed between the side wall and the coil end surface, an air circulation is generated when the armature rotates. The side wall has an air inlet hole and the yoke has an air outlet hole. Air coming into the space from the air inlet hole is blown out from the air outlet hole by the circulation generated by the fan made on the coil end surface. The brush dust particles are blown out by the circulated air, and the coil ends are cooled off at the same time. A distance between the side wall and the coil end surface and a depth of the gaps formed between the individual coil ends have to be optimized to obtain a good air circulation.

REFERENCES:
patent: 3591816 (1971-07-01), Sakamoto et al.
patent: 4009405 (1977-02-01), Gleichman
patent: 5211670 (1993-05-01), Ohmiet et al.
patent: 5266858 (1993-11-01), Ohmi et al.
patent: 5508577 (1996-04-01), Shiga et al.
patent: 5625242 (1997-04-01), Shiga et al.

Affiliated with

Also associated with

Rating

Motor having air circulating coil end does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Motor having air circulating coil end, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor having air circulating coil end will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1964978