Motor mounting structure
AssigneeCalsonic Kansei Corporation
InventorsTakashi Mikami, Hiroyuki Kawada
Life of this patent
Estimating the term…
Abstract
A ring-like rib 19 is erected on an inner circumferential edge of an insertion hole 11, which is opened in the scroll casing 1 so that the fan f is inserted therethrough, while a side wall 18 facing the ring-like rib 19 is provided in the bracket 15 blocking the insertion hole 11. A helical groove portion 20 and a protruding portion 21 are formed in one of an outer surface of the side wall 18 and an inner surface of the ring-like rib 19 and in the other thereof, respectively. The bracket 15 is caught in the scroll casing 1 by turning the bracket 15 in a direction opposite to a direction of rotation of said fan f. Further, during the engagement therebetween, a cooling duct 4 is formed.
Claims14
A motor mounting structure comprising:
- a scroll casing adopted to surround a fan;
- a bracket adopted to mount a motor, which drives the fan;
- an insertion hole formed on the scroll casing for inserting the fan therethrough;
- a ring-like rib erected on an inner circumferential edge of the insertion hole;
- a side wall disposed to the bracket in a manner to face the ring-like rib;
- a helical groove portion formed in one of an outer surface of the side wall and an inner surface of the ring-like rib;
- and
- a protruding portion engaging with the helical groove portion formed in the other of the outer surface of the side wall and the inner surface of the ring-like rib,
- wherein the bracket is attached onto the scroll casing by screwing the bracket into the scroll casing in a direction opposite to a direction of rotation of the fan, and in a state that the helical groove portion and the protruding portion are engaged with each other.
A motor mounting structure comprising:
- a scroll casing adopted to surround a fan, having an insertion hole for inserting the fan thereinto formed in a wall portion at a side thereof;
- and
- a bracket adopted to mount a motor, which drives the fan, having a motor accommodating portion adopted to accommodate the motor, a cover portion adopted to close the insertion hole, and a cooling duct adopted to introduce a part of air flowing within the scroll casing into the motor for cooling the motor,
- wherein the bracket further comprising:
- a side wall perpendicular to a wall portion of the scroll casing, formed in a peripheral part of the cover portion, adopted to hermetically engage with an inner circumferential edge of the insertion hole when the cover portion is inserted into the scroll casing;
- and
- an opening portion formed in a peripheral part of the cover portion, adopted to be connected with the cooling duct so as to introduce a part of air flowing within the scroll casing into the motor through the cooling duct.
Dependencies are inferred from the claim text.