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Centrifugal fan volute and indoor unit

A centrifugal fan and volute technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of little practical guiding significance, large parameter range, and large volute noise, and achieve low noise and high fan efficiency , the effect of small reflow area

Active Publication Date: 2017-02-22
QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the design of the traditional centrifugal fan volute, the reference parameter range of the volute tongue radius is too large, the actual guiding significance in engineering is small, and the designed volute is noisy

Method used

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  • Centrifugal fan volute and indoor unit
  • Centrifugal fan volute and indoor unit
  • Centrifugal fan volute and indoor unit

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The indoor unit of this embodiment mainly includes a casing 1, the casing 1 includes an upper casing and a lower casing, an air inlet 1-1 and an air outlet 1-2 are arranged on the casing 1, and a Centrifugal fan and heat exchanger 5, the centrifugal fan is arranged on the side near the air inlet 1-1, the heat exchanger 5 is arranged on the side near the air outlet 1-2, the centrifugal fan includes a centrifugal fan 4 and a volute 3, see figure 1 shown.

[0028] In order to facilitate the fixing of the volute 3, a partition 2 is provided in the housing 1, the partition 2 is located between the volute 3 and the heat exchanger 5, and the volute 3 is fixed on the partition 2 through the mounting plate at the air outlet superior.

[0029] In this embodiment, the air outlet of the volute 3 is close to the lower casing...

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Abstract

The invention discloses a centrifugal fan volute and an indoor unit. The volute is mounted inside an indoor unit shell; the shell is provided with an air inlet and an air outlet; a heat exchanger is arranged inside the shell and between the volute and the air outlet; the radius r of a volute tongue of the volute is equal to bRsinTheta, wherein b is a constant number, R represents the radius of the centrifugal fan, and Theta represents the included angle between a heat exchanger and the bottom surface of the shell. The centrifugal fan volute and the indoor unit disclosed by the invention are small in reflux area, high in fan efficiency and low in noise, and are capable of guaranteeing that the air can be accurately blown to an effective region of the heat exchanger, reducing dissipation of air and improving the heat exchange efficiency of the heat exchanger.

Description

technical field [0001] The invention belongs to the technical field of volutes, and in particular relates to a centrifugal fan volute and an indoor unit designed using the volute. Background technique [0002] In the design of the traditional centrifugal fan volute, the reference parameter range of the volute tongue radius is too large, the actual guiding significance in the project is small, and the designed volute is noisy. Contents of the invention [0003] The invention provides a centrifugal fan volute, which reduces noise. [0004] In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions to achieve: [0005] A centrifugal fan volute, installed in the casing of the indoor unit, an air inlet and an air outlet are arranged on the casing, a heat exchanger is arranged in the casing, between the volute and the air outlet, the volute The radius of the volute tongue is r=bRsinθ, where b is a constant, R is the...

Claims

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Application Information

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IPC IPC(8): F04D29/42
CPCF04D29/4226
Inventor 康鲁迪王元
Owner QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD