Air supply assembly and cabinet type air conditioning indoor unit comprising same

A component and fan technology, applied in the field of cabinet air conditioner indoor units, can solve the problems of low flow velocity at the edge, high flow velocity in the middle, large temperature difference between the center and the edge of the airflow, etc., and achieve small flow velocity difference, smooth flow, and compact structure Effect

Pending Publication Date: 2018-09-14
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the air guide duct connected with the volute air duct of the centrifugal fan either extends in a straight line or gradually expands relative to the outer contour of the impeller, and the airflow blown out is an annular airflow with a high vel

Method used

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  • Air supply assembly and cabinet type air conditioning indoor unit comprising same
  • Air supply assembly and cabinet type air conditioning indoor unit comprising same
  • Air supply assembly and cabinet type air conditioning indoor unit comprising same

Examples

Experimental program
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Embodiment 1

[0087] The fan air outlet of the centrifugal fan of the first air supply assembly 220 extends from front to back toward the direction close to the impeller 2211, and the angle β between it and the horizontal plane 1 is 5°. Angle β between the tangent line of the front edge of the first front arc passing through the fan outlet and the vertical direction 2 is 38°. Radius r of the first front arc u1 is 800mm. Radius r of the second front arc u2 It is 775mm. The angle of the third front arc is 57°. Radius r of the third front arc u3 is 75mm. The distance L between the end of the third front arc and the rear edge of the fan outlet in the front-to-back direction u2 110mm, the distance L from the rearward edge of the fan outlet in the vertical direction u1 is 500mm. Radius R of the first rear arc u1 It is 1100mm. Radius R of the second rear arc u2 It is 410mm. The distance from the center of the second rear arc to the end of the third rear arc in the front-rear directio...

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PUM

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Abstract

The invention provides an air supply assembly. The air supply assembly comprises a centrifugal fan and an air guide component used for guiding and conveying airflow blown out of the centrifugal fan to the indoor environment. According to the air supply assembly, an outlet section of the centrifugal fan is located on the front side of a volute tongue section of the centrifugal fan, the air guide component defines a flow guide air duct extending from a fan air outlet to the direction away from an impeller of the centrifugal fan, the forward side wall and the backward side wall of the flow guideair duct are arranged to extend along a front convex curve group and a rear convex curve group respectively, the two transverse side walls of the flow guide air duct are arranged to extend in the vertical direction, a front convex curve and a rear convex curve are curves which protrude backwards and can prolong the flow stroke of air in the flow guide air duct, so that the air blown out of the centrifugal fan is fully mixed in the flow guide air duct, meanwhile, flowing of the air is smooth, lower noise is achieved, the flow velocity difference value between airflow blown out from the centerof an air outlet of the flow guide air duct and airflow blown out from the edge of the flow guide air duct is small, and good user experience is achieved.

Description

technical field [0001] The invention relates to the field of air treatment, in particular to an air supply assembly and a cabinet-type air conditioner indoor unit with the air supply assembly. Background technique [0002] In the prior art, the air guide duct connected with the volute air duct of the centrifugal fan either extends in a straight line or gradually expands relative to the outer contour of the impeller, and the airflow blown out is an annular airflow with a high velocity in the middle and a low velocity at the edges. Especially when the centrifugal fan and the air guide duct are applied to the indoor unit of the air conditioner, the user will feel a large temperature difference between the center and the edge of the airflow. Contents of the invention [0003] It is an object of the first aspect of the present invention to provide a blower assembly with uniform wind speed. [0004] A further object of the first aspect of the present invention is to make the st...

Claims

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Application Information

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IPC IPC(8): F04D17/16F04D29/42F04D29/44F04D29/66F24F1/00F24F13/00
CPCF04D17/16F04D29/422F04D29/4226F04D29/441F04D29/661F24F1/0022F24F13/00
Inventor 单翠云王永涛李英舒王晓刚尹晓英
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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