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Volute tongue, cross-flow fan and air conditioner

A cross-flow fan and volute tongue technology, which is applied in the fields of air conditioners, cross-flow fans, and volute tongue, can solve the problems of high flow velocity and abnormal noise at small distances, and achieve the effect of reducing abnormal noise and improving comfort

Pending Publication Date: 2018-08-28
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current volute tongue plays the role of dividing the airflow and stabilizing the eccentric vortex in the cross-flow, but because the volute tongue itself cannot adjust the airflow velocity and flow direction at the small spacing of the tongue according to the change of the fan speed, when the speed is much higher than the normal speed , the flow velocity at the small spacing is too large, which is easy to produce abnormal noise

Method used

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  • Volute tongue, cross-flow fan and air conditioner
  • Volute tongue, cross-flow fan and air conditioner
  • Volute tongue, cross-flow fan and air conditioner

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Embodiment Construction

[0022] see in conjunction Figures 1 to 5 As shown, according to an embodiment of the present invention, a volute tongue is provided, including a volute tongue body 1, the volute tongue body 1 has a windward split surface 11, a tongue inner flow surface 12, and a drainage channel 13, and the drainage channel 13 is composed of The windward splitting surface 11 extends toward the tongue inner flow surface 12 so as to guide the airflow at the windward splitting surface 11 to the tongue inner flow surface 12 . As mentioned in the background technology, since the volute tongue itself cannot adjust the airflow velocity and flow direction at the small spacing of the tongue according to the change of the fan speed, when the rotation speed is much higher than the normal speed, the flow velocity at the small spacing is too large, which is prone to abnormalities Noise, in this technical solution, a drainage passage 13 is creatively provided on the volute tongue body 1, so that when the a...

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PUM

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Abstract

The invention provides a volute tongue, a cross-flow fan and an air conditioner. The volute tongue comprises a volute tongue body, wherein the volute tongue body is provided with a windward flow-dividing surface, a tongue part inner flow surface and a flow guide channel, wherein the flow guide channel extends from the windward flow-dividing surface to the tongue part inner flow surface so as to guide the air flow at the windward flow-dividing surface to the tongue part inner flow surface. According to the volute tongue, the cross-flow fan and the air conditioner, the abnormal noise of the cross-flow fan can be remarkably reduced, and the comfort of the cross-flow fan and the air conditioner is improved.

Description

technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to a volute tongue, a cross-flow fan and an air conditioner. Background technique [0002] The current volute tongue plays the role of dividing the airflow and stabilizing the eccentric vortex in the cross-flow, but because the volute tongue itself cannot adjust the airflow velocity and flow direction at the small distance between the tongue according to the change of the fan speed, when the speed is much higher than the normal speed , the flow velocity at the small spacing is too large, which is easy to produce abnormal noise. Contents of the invention [0003] Therefore, the technical problem to be solved by the present invention is to provide a volute tongue, a cross-flow fan, and an air conditioner, which can significantly reduce the abnormal noise of the cross-flow fan and improve the comfort of the cross-flow fan and the air conditioner. [0004] In ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42F04D29/66F04D17/04
CPCF04D17/04F04D29/422F04D29/661
Inventor 廖俊杰李树云吴俊鸿
Owner GREE ELECTRIC APPLIANCES INC
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