Fan, Diffuser, and Vacuum Cleaner having the same
First Claim
1. A diffuser comprising:
- a bottom plate being annular in shape; and
a plurality of guide vanes disposed on the bottom plate, the guide vanes being evenly spaced and arranged along a circumferential direction of the bottom plate, each of the guide vanes extending obliquely from an inner edge to an outer edge of the bottom plate, an outer end of each guide vane extending outward beyond the outer edge of the bottom plate, each guide vane being deflected an angle of 30 to 70 degrees with respect to a tangential direction of the bottom plate at an inner end of the guide vane, the outer end of each guide vane being deflected an angle of 35 to 120 degrees along a circumferential direction with respect to the inner end of the guide vane.
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Accused Products
Abstract
A fan of a vacuum cleaner includes a motor, an impeller, and a diffuser. The diffuser includes a bottom plate and guide vanes disposed on the bottom plate. The guide vanes are evenly spaced and arranged along a circumferential direction of the bottom plate. Each guide vane extends obliquely from an inner edge to an outer edge of the bottom plate. An outer end of each guide vane extends beyond the outer edge of the bottom plate. Each guide vane is deflected an angle of 30 to 70 degrees with respect to a tangential direction of the bottom plate at the inner end of the guide vane. The outer end of each guide vane is deflected an angle of 35 to 120 degrees along a circumferential direction with respect to the inner end of the guide vane.
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Citations
20 Claims
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1. A diffuser comprising:
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a bottom plate being annular in shape; and a plurality of guide vanes disposed on the bottom plate, the guide vanes being evenly spaced and arranged along a circumferential direction of the bottom plate, each of the guide vanes extending obliquely from an inner edge to an outer edge of the bottom plate, an outer end of each guide vane extending outward beyond the outer edge of the bottom plate, each guide vane being deflected an angle of 30 to 70 degrees with respect to a tangential direction of the bottom plate at an inner end of the guide vane, the outer end of each guide vane being deflected an angle of 35 to 120 degrees along a circumferential direction with respect to the inner end of the guide vane. - View Dependent Claims (2, 3, 4, 5)
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6. A fan comprising:
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a motor comprising a rotary shaft; an impeller coupled to the rotary shaft for rotating with the motor; and a diffuser surrounding the impeller, the diffuser comprising; a bottom plate being annular in shape; and a plurality of guide vanes disposed on the bottom plate, the guide vanes being evenly spaced and arranged along a circumferential direction of the bottom plate, each of the guide vanes extending obliquely from an inner edge to an outer edge of the bottom plate, an outer end of each guide vane extending outward beyond the outer edge of the bottom plate, each guide vane being deflected an angle of 30 to 70 degrees with respect to a tangential direction of the bottom plate at an inner end of the guide vane, the outer end of each guide vane being deflected an angle of 35 to 120 degrees along a circumferential direction with respect to the inner end of the guide vane. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A vacuum cleaner comprising a fan, the fan comprising:
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a motor comprising a rotary shaft; an impeller coupled to the rotary shaft for rotating with the motor; and a diffuser surrounding the impeller, the diffuser comprising; a bottom plate being annular in shape; and a plurality of guide vanes disposed on the bottom plate, the guide vanes being evenly spaced and arranged along a circumferential direction of the bottom plate, each of the guide vanes extending obliquely from an inner edge to an outer edge of the bottom plate, an outer end of each guide vane extending outward beyond the outer edge of the bottom plate, each guide vane being deflected an angle of 30 to 70 degrees with respect to a tangential direction of the bottom plate at an inner end of the guide vane, the outer end of each guide vane being deflected an angle of 35 to 120 degrees along a circumferential direction with respect to the inner end of the guide vane. - View Dependent Claims (19, 20)
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Specification