Method for controlling heating of variable frequency air conditioner
A control method and frequency conversion air conditioner technology, which are applied in the directions of control input involving air characteristics, space heating and ventilation control input, heating mode, etc., can solve the problems of air conditioner overload operation, high compressor power, and high refrigerant pressure, etc. To achieve the effect of saving air conditioning energy consumption
Active Publication Date: 2018-03-09
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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Problems solved by technology
[0003] When heating, the evaporator corresponding to the fan that is not turned on will cause high coil temperature, excessive refrigerant pressure, and excessive compressor power, which will cause the air conditioner to run in overload
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[0028] An embodiment of the present invention provides a heating control method for an inverter air conditioner. figure 1 It is a partial structural schematic diagram of an air conditioner indoor unit according to an embodiment of the present invention; figure 2 yes figure 1 The exploded schematic diagram of the air supply structure of the indoor unit of the air conditioner shown; image 3 It is a structural schematic diagram of the evaporator of the air conditioner indoor unit according to an embodiment of the present invention. image 3 The two evaporators are separated by a dotted line.
[0029] Such as Figure 1 to Figure 3 As shown, the indoor unit of the inverter air conditioner includes a casing, two evaporators, two fans, multiple air outlets and multiple swing leaf assemblies. The evaporator 551, the fan 410 and the air outlets 112, 114 are matched. The evaporator 552, the fan 420 and the air outlet 116 are matched. figure 1 Only the front panel 110 of the casi...
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The invention provides a method for controlling heating of a variable frequency air conditioner. An indoor air conditioner comprises two evaporators connected in parallel, two draught fans corresponding to two evaporators and two air blowout units corresponding to two draught fans. Every air blowout unit includes at least one air outlet. The method for controlling heating of variable frequency ofair conditioners consists of the steps that indoor target temperature Ta, indoor environmental temperature Tb, outdoor environmental temperature Tc and temperature of coil pipe of the two evaporatorsare detected while the air conditioner is operating in a heating mode, wherein the higher temperature value of the two coil pipe is marked as Td; the on-or-off state of the two draught fans is detected; the operating frequency of compressors is determined by temperature range of the Td and value of the Ta, Tb, Tc if two draught fans are in service; and if only one draught fan is on, the operatingfrequency of the compressors is decided by temperature difference range of the Ta, Tb and the Ta, Tb, Tc value. The method not only makes the air conditioners capable of meeting heating needs, but also protects the refrigerant circulation system from overload operation.
Description
technical field [0001] The invention relates to the technical field of refrigeration, in particular to a heating control method for an inverter air conditioner. Background technique [0002] Inverter air conditioners usually calculate the real-time operating frequency of the compressor based on the indoor target temperature, indoor ambient temperature, and outdoor ambient temperature set by the remote control. However, some indoor units of air conditioners are provided with two evaporators and two fans connected in parallel to realize air supply in multiple modes. Therefore, it is often the case that only one blower is turned on. [0003] When heating, the evaporator corresponding to the fan that is not turned on will cause high coil temperature, excessive refrigerant pressure, and excessive compressor power because there is no fan to blow and dissipate heat. Therefore, how to precisely control the operating frequency of the compressor so that the air conditioner can meet ...
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IPC IPC(8): F24F11/00F24F110/10F24F110/12
CPCF24F11/00Y02B30/70
Inventor 刘卫兵耿宝寒朱辉徐中华张千贾淑玲李存恒
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD