Fan housing with noise-reducing structure
View Patent ↗A fan housing with a noise-reducing structure includes a housing having a side wall. An air inlet is defined in the housing and an air outlet defined in the side wall of the housing. A plurality of supporting ribs are disposed in the air inlet and connected between inner and outer peripheries of the air inlet for supporting a motor base. At least one of the supporting ribs is adjacent to the air outlet and extends in a direction coincident to or intersects with a longitudinal line of the air outlet extending through a rotational axis of the motor base.
1. A fan housing with a noise-reducing structure, comprising:
a housing including a side wall;
an air inlet defined in the housing and including an inner periphery and an outer periphery;
an air outlet defined in the side wall of the housing; and
a plurality of supporting ribs disposed in the air inlet, the plurality of supporting ribs being connected between the inner periphery and the outer periphery of the air inlet for supporting a motor base, only one of the plurality of supporting ribs being aligned with a longitudinal line of the air outlet which extends through a rotational axis of the motor base, having an extending direction from the motor base to the outlet, and a width smaller than widths of the remaining supporting ribs.
2. The fan housing with a noise-reducing structure as claimed in claim 1 , wherein the supporting rib adjacent to the air outlet extends along the longitudinal line in parallel.
3. The fan housing with a noise-reducing structure as claimed in claim 1 , wherein the supporting rib adjacent to the air outlet extends in a direction at an inclination angle to the longitudinal line.
4. The fan housing with a noise-reducing structure as claimed in claim 3 , wherein the inclination angle is ±40 degrees.
5. A fan housing with a noise-reducing structure, comprising:
a housing including a side wall;
an air inlet defined in the housing and including an inner periphery and an outer periphery;
an air outlet defined in the side wall of the housing; and
a plurality of supporting ribs disposed in the air inlet, the plurality of supporting ribs being connected between the inner periphery and the outer periphery of the air inlet for supporting a motor base, the plurality of supporting ribs including a closest rib relative to the air outlet, with the closest rib extending in a direction from the motor base to the outlet and at an inclination angle to a longitudinal line of the air outlet extending through a rotational axis of the motor base, the closest rib having a width smaller than widths of the remaining supporting ribs.
6. The fan housing with a noise-reducing structure as claimed in claim 5 , wherein the inclination angle is ±40 degrees.