Wind wheel and centrifugal fan

Abstract

The invention discloses a wind wheel and a centrifugal fan. The wind wheel comprises a front plate 1 and a rear plate 2, the front plate 1 and the rear plate 2 are parallel to each other, a pluralityof blades 3 are arranged between the front plate 1 and the rear plate 2, each blade 3 is vertical to the rear plate 2, each blade 3 is arranged as an arc type, and is arranged in a circular array of the central axis of the rear plate 2, the center of the rear plate 2 is an origin to establish a first rectangular coordinate system 4, the connection line between the end portion, far away from the central of the rear plate 2, of one blade 3 on the right side of the vertical axis positive direction and the origin of the first rectangular coordinate system 4 is a first line segment, the connectionline between the end portion, near the center of the rear plate 2, of one blade 3 on the right side of the vertical axis positive direction of the first rectangular coordinate system 4 is a second line segment, the end portions, far away from the center of the rear plate 2, of the blades 3 enclose an outer circle, an included angle between the extension line at the end, far away from the rear plate 2, of the blade 3 intersects the first line segment and a tangent line of the outer circle is an air outlet angle beta1, and the end portions, near the center of the rear plate 2, of the blades 3 enclose an inner circle. The invention provides the efficient and low noise wind wheel and the centrifugal fan.

Description

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AI Technical Summary

Benefits of technology

This innovation improves how fans work with an air conditioner (AC) without generating too much sound or being less efficient than usual.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the efficiency or reducing energy usage when designing an axial blower with conventional hub designs that have limited opportunities for air movement due to their circular shape and narrowed channel structure. These limitations can lead to increased pressure drop across certain parts within the device's housing causing more wear on its components over time.

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