An air conditioner indoor unit that enhances radiation and convective heat transfer and comfort

Abstract

The invention discloses an air conditioner indoor unit enhancing radiation and convective heat exchange and improving comfort. The air conditioner indoor unit is characterized in that an upper air port is formed in a top plate of a unit body of the indoor unit; a lower air port is formed in the lower portion of a front vertical face of the unit body; a long and narrow air screen air outlet is formed in the upper portion of the front vertical face of the unit body in the horizontal direction; a heat exchanger is arranged in the unit body in an inclined manner; a two-way air supply cross-flow fan is arranged at the position, below the upper air port, in the unit body and located at the top of the heat exchanger; a heat exchange panel is arranged at the position, between the lower air port and the air screen air outlet, of the front vertical face of the unit body; and the air screen air outlet is communicated with an air pump located at the bottom of the unit body. The user-friendly upper-cold and lower-hot air supply mode is adopted, the heat exchange panel assists in heat exchange, and the air conditioner indoor unit is good in thermal comfort, capable of saving energy and efficient.

Description

technical field [0001] The invention relates to an air-conditioning system terminal device, more specifically to an indoor terminal device of a heating and cooling air conditioner with energy saving, environmental protection and comfort. Background technique [0002] At present, coal-fired or oil-fired heating methods are widely used in northern my country and some southern regions in winter. Combustion of fossil fuels, especially non-centralized combustion, easily produces a large amount of pollutant emissions, and the efficiency of combustion and heating is low, resulting in waste of resources and serious environmental pollution. [0003] In order to solve the above problems, the Chinese government is vigorously promoting heat pump heating, a clean and efficient heating method. However, due to the low ambient temperature in winter in northern my country, the temperature of hot water produced by the ordinary single-stage compression heat pump system is not high enough, and ...

AI Technical Summary

Problems solved by technology

However, due to the low ambient temperature in winter in northern my country, the temperature of hot water produced by the ordinary single-stage compression heat pump system is not high enough, and the efficiency of the two-stage compression system is relatively low, which has a great impact on the indoor unit of the air conditioner with small temperature difference heat transfer. needs

[0004] In the current heat pump heating scheme, fan coil units are generally used as the end of the air conditioner. The fan coil units are installed on the ceiling and supply air upwards. In order to meet the heat exchange requirements, the air volume is designed to be large and the wind speed is high. The low temperature gradient cannot meet the comfort requirements of the human body for "cold head and hot feet" in winter and summer at the same time

[0005] In recent years, heat pump radiant heating technology has been proposed and applied, including floor, ceiling, wall or vertical radiant heat transfer, etc. The radiant heat transfer scheme has better comfort in winter heating, but the disadvantage is that it cannot take into account both heating and heating. Cold difference and comfort, and need to set a larger radiation heat transfer area

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