Heat exchanger and indoor unit of air conditioner

Abstract

The invention discloses a heat exchanger and an indoor unit of the air conditioner. The heat exchanger comprises a heat exchanger main body and a plurality of refrigerant sub inlet tubes, wherein eachrefrigerant sub inlet tube communicates with a heat exchange tube in the heat exchanger main body; the refrigerant sub inlet tubes are arranged in the height direction of the heat exchanger main body; and tube diameters of the refrigerant sub inlet tubes are different. According to the heat exchanger disclosed by the invention, flow of a refrigerant on the upper part of the heat exchanger is reduced, and flow of the refrigerant on the lower part of the heat exchanger is increased, so that uneven refrigerant distribution as a result of too great flow on the upper part of the heat exchanger dueto the inertia effect of the refrigerant can be neutralized, and therefore, refrigerant flow of each runner is more uniform, temperature uniformity of outlet air of the air hole of the air conditioner is improved, and comfort is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, and more specifically relates to a heat exchanger and an air conditioner indoor unit. Background technique [0002] At present, the cylindrical cabinet air conditioners on the market have larger air outlets, and the height of the air outlets in the vertical direction is larger. When the air conditioner is running in the heating mode, the refrigerant in the heating cycle of the indoor heat exchanger flows from bottom to top. Yes, due to the inertia of the refrigerant, most of the refrigerant will concentrate on the upper part of the heat exchanger, resulting in high air temperature at the upper part of the heat exchanger and low air temperature at the lower part of the heat exchanger. The deviation is large, the temperature of the air outlet is uneven, and the uneven hot air blows on the body of the consumer, which reduces the comfort of the consumer and causes consumer complaints. Cont...

AI Technical Summary

Problems solved by technology

[0002] At present, the cylindrical cabinet air conditioners on the market have larger air outlets, and the height of the air outlets in the vertical direction is larger. When the air conditioner is running in the heating mode, the refrigerant in the heating cycle of the indoor heat exchanger flows from bottom to top. Yes, due to the inertia of the refrigerant, most of the refrigerant will concentrate on the upper part of the heat exchanger, resulting in high air temperature at the upper part of the heat exchanger and low air temperature at the lower part of the heat exchanger. The deviation is large, the temperature of the air outlet is uneven, and the uneven hot air blows on the body of the consumer, which reduces the comfort of the consumer and causes consumer complaints

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