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Wind wheel and air outlet device

A wind wheel and wheel hub technology, which is applied in the field of wind wheel and air outlet device, can solve the problems of high cost and low space utilization rate of air outlet device, and achieve the effects of reducing area, enhancing viscous dissipation effect, and reducing noise

Pending Publication Date: 2021-12-31
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problems of the high cost of the wind wheel noise reduction method in the prior art and the low space utilization rate of the air outlet device provided with the wind wheel, thereby providing a wind wheel and an air outlet device

Method used

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  • Wind wheel and air outlet device
  • Wind wheel and air outlet device
  • Wind wheel and air outlet device

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Embodiment Construction

[0029] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention provides a wind wheel and an air outlet device. The wind wheel comprises a hub and a plurality of blades. The middle of the hub is provided with a connecting part, and the hub is suitable for being connected with an external power piece through the connecting part and rotating with the connecting part as the axis under the driving of the power piece. The blades are connected with the hub and distributed in the circumferential direction of the hub, at least the windward face of each blade is provided with a plurality of protruding parts, and the protruding parts are arranged at intervals and are concentrically arranged with the connecting part as the circle center. The protruding parts can play a role in guiding wind on the windward faces of the blades, and also can effectively change the turbulence structure of the near-wall areas of the blades, reduce disordered vortexes, reduce the intensity of reversely-rotating vortex pairs and reduce cracks caused by mutual collision and abnormal separation of the vortexes, so that the intensity and pulsating pressure of turbulent flows are reduced, medium-high-frequency noise of the wind wheel is restrained, and finally noise of the whole wind wheel is reduced.

Description

technical field [0001] The invention relates to the technical field of fans, in particular to a wind wheel and an air outlet device. Background technique [0002] Nowadays, various air outlet devices such as fans, air conditioners, and air purifiers are widely used in daily life. However, as an important part of the air outlet device, the wind wheel produces a certain degree of noise due to its own structural problems while efficiently emitting air. [0003] At present, the main method of wind rotor noise reduction is to increase the sound insulation structure in the surrounding environment of the wind rotor, but the cost of the sound insulation structure is high on the one hand, and on the other hand, it reduces the utilization efficiency of the internal space of the air outlet device and increases the cost of the air outlet device. volume. Contents of the invention [0004] Therefore, the technical problem to be solved by the present invention is to overcome the proble...

Claims

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Application Information

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IPC IPC(8): F04D29/38F04D29/32F04D29/66F04D29/68
CPCF04D29/388F04D29/325F04D29/666F04D29/667F04D29/681
Inventor 杨静慧孙坤赵勇蔡晓龙胡逢亮
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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