Axial fan for outdoor unit of air conditioner
AssigneeLG Electronics Inc.
InventorsKeuntae PARK, Inbeom CHEON, Jaehyuk JUNG, Hyuneun KWAK, Seokho CHOI, Siyoung OH
Life of this patent
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Abstract
An axial fan for an outdoor unit of an air conditioner is provided. The axial fan may include at least one blade connected to a hub. The at least one blade may include a blade inner portion, a blade outer portion provided outside of the blade inner portion in a radial direction, and a blade connector that connects the blade inner portion and the blade outer portion as a curved surface, thereby improving noise and increasing an air volume.
Claims27
An axial fan for an outdoor unit of an air conditioner, the axial fan comprising:
- a hub configured to be coupled with a rotational shaft;
- and
- a plurality of blades provided at an outside of the hub in a circumferential direction and including a hub connector coupled to an outer circumferential surface of the hub and a tip that forms an outermost end in a radial direction, wherein at least one of the plurality of blades comprises:
- a blade inner portion forming the hub connector;
- a blade outer portion forming the tip;
- and
- a blade connector that connects the blade inner portion and the blade outer portion and forming an inner end bent from the blade inner portion and an outer end bent toward the blade outer portion, and wherein a direction in which the inner end is bent from the blade inner portion is different from a direction in which the outer end is bent toward the blade outer portion.
An axial fan for an outdoor unit of an air conditioner, the axial fan comprising:
- a hub;
- and
- at least one blade including a hub connector coupled to an outer circumferential surface of the hub and a tip forming an outermost end in a radial direction, wherein the at least one blade comprises:
- a blade inner portion forming the hub connector;
- a blade outer portion forming the tip;
- and
- a blade connector that connects the blade inner portion and the blade outer portion and forming an inner end bent from the blade inner portion and an outer end bent toward the blade outer portion.
An axial fan for an outdoor unit of an air conditioner, the axial fan comprising:
- a hub configured to be coupled with a rotational shaft;
- and
- a plurality of blades provided at an outside of the hub in a circumferential direction and including a hub connector coupled to an outer circumferential surface of the hub and a tip that forms an outermost end in a radial direction, wherein at least one of the plurality of blades comprises:
- a blade inner portion forming the hub connector;
- a blade outer portion forming the tip;
- and
- a blade connector that connects the blade inner portion and the blade outer portion and forming an inner end bent from the blade inner portion and an outer end bent toward the blade outer portion, wherein, at a leading edge of the blade, the blade is bent in a first direction at a first point at which the blade inner portion and the blade connector are connected and is bent in a second direction at a second point at which the blade connector and the blade outer portion are connected, and wherein, at a trailing edge of the blade, the blade is bent in a third direction at a third point at which the blade inner portion and the blade connector are connected and is bent in a fourth direction at a fourth point at which the blade connector and the blade outer portion are connected.
Dependencies are inferred from the claim text.