Volute, centrifugal fan and air conditioner

A volute case and volute tongue technology, which is applied in air-conditioning systems, machines/engines, mechanical equipment, etc., can solve problems such as the impact noise of diversion arc surfaces, achieve the effects of weakening continuous impact, improving user experience satisfaction, and reducing noise Effect

Pending Publication Date: 2019-12-13
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a volute, a centrifugal fan and an air conditioner, so as to solve the problem in the prior art that the continuous impact on the diversion arc surface when the air flows out causes relatively large noise

Method used

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  • Volute, centrifugal fan and air conditioner
  • Volute, centrifugal fan and air conditioner
  • Volute, centrifugal fan and air conditioner

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Embodiment Construction

[0036] 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 part 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.

[0037] 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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PUM

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Abstract

The invention provides a volute, a centrifugal fan and an air conditioner. The volute is provided with an air inlet, an accommodating cavity, a first air outlet and a first air outlet channel, the accommodating cavity is used for accommodating an impeller, the accommodating cavity communicates with the air inlet, the first air outlet communicates with the circumferential part of the accommodatingcavity through the first air outlet channel, the first air outlet channel is provided with a guide surface, the guide surface comprises an inner guide surface and an outer guide surface which are connected, the inner guide surface extends towards the other side opposite to the air inlet from the peripheral side of the accommodating cavity, and the outer guide surface extends outwards relative to the joint of the inner guide surface and the outer guide surface so as to weaken the impact of airflow on the guide surface. The inner guide surface is used for changing the flowing direction of the airflow, and the outer guide surface hardly changes the flowing direction of the airflow, so that the impact on the guide surface when the airflow flows through the outer guide surface is small, the airflow cannot continuously impact the guide surface, the continuous impact on the guide surface when the airflow flows out is reduced, the noise is reduced, and the user experience satisfaction is improved.

Description

technical field [0001] The invention relates to the technical field of electrical appliances, in particular to a volute, a centrifugal fan and an air conditioner. Background technique [0002] With the development of the air-conditioning industry, more and more air-conditioning cabinet products that can realize upper and lower air outlets appear on the market, and most of these products use centrifugal fans. The centrifugal fan includes a volute and an impeller. The volute has an air inlet, an accommodation chamber, an air outlet and an air outlet duct. The impeller is arranged in the accommodation chamber. A wall surface of the air duct is a diversion arc surface extending from the periphery of the impeller to the rear side, wherein the rear side refers to the other side opposite to the air inlet. The airflow is sucked in by the impeller from the front side where the air inlet is located, thrown out from the circumference of the impeller, and then flows along the guide arc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42F04D29/44F04D29/66F24F1/0022
CPCF04D29/422F04D29/4233F04D29/441F04D29/663F24F1/0022
Inventor 刘雷明熊重重邹云辉程春雨黄志辉梁玉林
Owner GREE ELECTRIC APPLIANCES INC
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