Air conditioner indoor unit, air outlet control method thereof and air conditioner

Abstract

The invention provides an air conditioner indoor unit, an air outlet control method thereof and an air conditioner. The air conditioner indoor unit comprises a cross-flow fan (1), a first air outlet (2) and a second air outlet (3). The cross-flow fan (1) comprises a draught fan outlet (4), the first air outlet (2) and the second air outlet (3) are jointly connected to the draught fan outlet (4), and a flow dividing structure (5) for adjusting the flow dividing proportion of the first air outlet (2) and the second air outlet (3) is arranged between the first air outlet (2) and the second air outlet (3). The first air outlet (2) is located in the upper side of the center axis of the cross-flow fan (1), and the second air outlet (3) is located in the lower side of the center axis of the cross-flow fan (1). According to the air conditioner indoor unit, the flow dividing proportion of an upper air outlet air flue and a lower air outlet air flue can be adjusted according to the air outlet mode, accordingly, the air volume of the upper air outlet air flue and the lower air outlet air flue is dynamically controlled, and the air outlet effect is guaranteed.

Description

technical field [0001] The application belongs to the technical field of air conditioning, and in particular relates to an air conditioner indoor unit, a method for controlling air outlet thereof, and an air conditioner. Background technique [0002] Using a single cross-flow fan to realize up and down air supply can expand the air supply range, and at the same time, the air supply comfort is better. In order to ensure the comfort of air supply, it is necessary to ensure that the air volume ratio of the two air ducts is 50%±10% when the air is supplied from top to bottom at the same time. At the same time, the total air volume is more than 70% when the air is supplied. However, since the pressure gradient of the upper air outlet is larger than that of the lower air outlet, the following problems exist in different modes of air supply: [0003] 1. If the width of the upper air outlet is similar to the width of the lower air outlet, when the air is supplied from top to botto...

AI Technical Summary

Problems solved by technology

[0004] 2. If the width of the upper air outlet is obviously smaller than that of the lower air outlet, although it can meet the requirements of the upper and lower simultaneous air supply mode, the air volume of the upper and lower air outlets is basically the same. too small

[0006] 4. When the speed of the cross-flow fan changes, the eddy current controlling the flow field of the cross-flow fan changes, resulting in a change in the cross-flow area in the flow field; using a fixed split flow structure to divide the cross-flow area cannot obtain the proportion of air volume at each speed Constant airflow split

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