Cold air prevention control method and device and air conditioner
A control method and technology for preventing cold air, applied in heating and ventilation control system, space heating and ventilation control input, air conditioning system, etc. And other issues
Inactive Publication Date: 2021-08-20
NINGBO AUX ELECTRIC +1
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Problems solved by technology
However, for multi-connected air conditioners, if there are multiple indoor units exiting the anti-cold wind mode at the same time, that is, the fans of multiple indoor units switch from low wind speed to high wind speed, the heat transfer of the indoor units will increase due to the increase in the speed of the fans. , the outdoor unit cannot quickly provide more heat exchange to multiple indoor units, causing the coil temperature to drop rapidly, and the outlet air temperature fluctuates greatly, resulting in poor heating comfort
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Embodiment
[0050] see figure figure 1 , this embodiment provides an anti-cold wind control method and device, which is applied to a multi-connected air conditioner 10. The anti-cold wind control method and device provided by this embodiment can meet the exit conditions of the anti-cold wind mode when multiple indoor units 12 In some cases, setting the withdrawal order among multiple indoor units 12 and withdrawing one by one according to the withdrawal order can reduce the fluctuation of the outlet air temperature of the indoor units 12 and improve heating comfort.
[0051]At present, the multi-connected air conditioner 10 is widely used. The multi-connected air conditioner 10 includes an outdoor unit 13 and a plurality of indoor units 12. The plurality of indoor units 12 are connected to the outdoor unit 13. When the multi-connected air conditioner 10 starts the heating mode, the indoor Due to the low temperature of the heat exchanger of the unit 12, it usually enters the anti-cold wind...
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The invention provides a cold air prevention control method and device and an air conditioner, and relates to the technical field of air conditioners. The cold air prevention control method comprises the steps of obtaining a temperature value of a coil pipe of an indoor unit entering a cold air prevention mode; judging whether the indoor unit meets the exit condition of the cold air prevention mode or not according to the temperature value of the coil pipe; if the condition that the multiple indoor units meet the exit conditions at the same time exists, setting a exit sequence of the multiple indoor units meeting the exit conditions to exit the cold air prevention mode; and controlling the multiple indoor units meeting the exit conditions to exit the cold air prevention mode one by one according to the exit sequence. In the embodiment of the invention, under the condition that the multiple indoor units meet the exit conditions at the same time, the exit sequence of the multiple indoor units is set, and the situation that the multiple indoor units exit the cold air prevention mode at the same time is avoided, so that the operation stability of the whole multi-split air conditioner is improved, the air outlet temperature fluctuation of the indoor units is reduced, and the heating comfort is improved.
Description
technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a cold wind prevention control method, device and air conditioner. Background technique [0002] At present, multi-connected air conditioners are widely used. A multi-connected air conditioner includes an outdoor unit and multiple indoor units. Multiple indoor units are connected to the outdoor unit. Lower, usually enters the anti-cold wind mode first, that is, the indoor fan runs at a lower wind speed to prevent the user from feeling uncomfortable due to the low temperature of the air blown out from the indoor unit. The coil temperature value rises to the preset temperature value and then exits the anti-cold air mode. However, for multi-connected air conditioners, if there are multiple indoor units exiting the anti-cold wind mode at the same time, that is, the fans of multiple indoor units switch from low wind speed to high wind speed, the heat transfer of the ...
Claims
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IPC IPC(8): F24F1/0003F24F11/61F24F11/64F24F11/65F24F11/74F24F11/88F24F110/10F24F140/20
CPCF24F1/0003F24F11/61F24F11/64F24F11/65F24F11/74F24F11/88F24F2110/10F24F2140/20
Inventor 邓赛峰陈华宋磊李理科
Owner NINGBO AUX ELECTRIC