Patent ID: 8820692

Claim:
A motor casing comprising: a frame assembly comprising: a frame having an inner face defining an air channel; and a plurality of connection members disposed in the air channel, wherein each connection member has a first end and a second end, and wherein the first ends of the plurality of connection members are coupled to the inner face of the frame; and a motor base comprising: a supporting member having an inner surface and an outer surface, wherein the inner surface defines a through-hole, wherein an opening portion is formed at one side of the through-hole, wherein a coupling portion is formed at another side of the through-hole, and wherein the outer surface is coupled with the second ends of the plurality of connection members; and a covering member coupled to the opening portion of the supporting member and having a first surface and a second surface opposite to the first surface, wherein the first surface faces the through-hole of the supporting member, wherein the covering member forms a protruding ring on a periphery thereof, wherein the protruding ring has a plurality of notches, wherein the opening portion of the supporting member has a plurality of buckling protrusions, wherein each of the plurality of buckling protrusions is buckled into a respective one of the plurality of notches, and wherein the covering member further comprises at least one vent extending from the first surface to the second surface thereof.