Improved outdoor machine volute structure for window type air-conditioner

Abstract

The invention provides an improved spiral case structure at the outdoor side of a window air conditioner, which comprises a spiral case arranged at the outdoor side of a box body of the window air conditioner, wherein the inside of the spiral case is used for arranging a fan, two outside wall surfaces of the spiral case are positioned between inlet and outlet pipe bodies of a condenser at the outdoor side of the box body and a water ring of the fan. The improvement of the spiral case structure lies in that two outside wall surfaces, which are close to the side wall of the outdoor side of the box body of the spiral case are provided with an arc-shaped body respectively which is convex towards the side wall of the box body, which increases a clearance between the outside wall surfaces of the spiral case and the water ring of the fan, can not affect the contact to the pipe bodies, avoids the problem that the water ring of the fan and the inlet and outlet pipe bodies of the condenser interfere with each other, realizes the maximization of the size of the fan, assures the heat needed by heat exchange of the outdoor side, and ensures that the water ring of an axial-flow fan can contact condensed water to achieve efficacies of effectively utilizing the condensed water, improving condensing effect, reducing condensing temperature and input power, reducing work noise, improving the energy efficiency ratio (EER) of the air conditioner, and optimizing working environment.

Description

technical field [0001] The invention relates to an air conditioner, in particular to an improved outdoor volute structure of a window type air conditioner which makes the outdoor volute structure more reasonable and improves the outdoor heat exchange efficiency. Background technique [0002] The air conditioner is a device that cools and warms the air in the indoor space after exchanging heat between the refrigerant circulating through the compressor, condenser, expansion device, and evaporator and the air passing through the evaporator. The structure of the air conditioner includes an outdoor unit composed of a compressor, a condenser, and an expansion device, and an indoor unit composed of a fan and an evaporator. The outdoor unit and the indoor unit are connected to each other through refrigerant piping. [0003] The types of air conditioners are divided according to the installation position of the indoor unit, such as upright air conditioners for indoor use, wall-mounte...

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Problems solved by technology

[0008] refer to figure 2 , image 3 As shown, the installation positions of the above-mentioned existing dual-axial flow fan window type air conditioner outdoor side volute and fan and condenser inlet and outlet pipe body are that the outer side 81 of the outdoor side volute 8 is located at the condenser 7 inlet and outlet pipes. Between the bodies 11 and 12 and the water rings 91 and 91' of the axial fans 9 and 9', due to the limitation of the volume of the box body 1, between the outer side 81 of the volute 8 and the inlet and outlet pipes 11 and 12 of the condenser 7 , and the gap between the water rings 91 and 91' of the axial flow fans 9 and 9' is very small, so that when the air conditioner is working, the wall surface of the outer side 81 of the volute 8 will be in contact with the inlet and outlet pipe body 11 of the condenser 7 and 12 interferes, it will also interfere with the water rings 91 and 91' of the axial flow fans 9 and 9', which will cause noise and affect the use environment; if the diameter of the fan is reduced, it will be difficult to ensure the air volume; The overall width of the shell 8 will make the two outer sides 81 and 81' of the volute 8 contact the inlet and outlet pipes 11 and 12 of the condenser 7, which will affect the heat exchange efficiency of the air conditioner and increase the operating noise

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