Air conditioner only having refrigeration function and control method thereof
A control method and technology for air conditioners, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as affecting the energy efficiency level of air conditioners, increasing the compression power consumption of compressors, affecting the heat exchange performance of evaporators, etc. The effect of compressing power consumption, improving energy efficiency, and promoting energy saving and emission reduction
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Embodiment 1
[0065] In this embodiment, the first detection object is the outdoor ambient temperature T4 and the exhaust gas temperature. Firstly, the operating frequency F is obtained according to the detected outdoor ambient temperature T4, and the setting is calculated based on the detected outdoor ambient temperature T4 and operating frequency F. Set the exhaust temperature, and then adjust the opening degree of the first throttling element so that the detected exhaust temperature reaches the set exhaust temperature. It can be understood that the calculation formula is pre-set in the electronic control element of the cooling-only air conditioner, and the calculation formula can be specifically defined according to the actual situation.
[0066] Specifically, when the first detection object is the outdoor ambient temperature T4 and the exhaust temperature, the outdoor ambient temperature T4 is detected when the refrigeration is turned on, the operating frequency F of the compressor is de...
Embodiment 2
[0072] In this embodiment, the first detection object is the outdoor ambient temperature T4 and the exhaust pressure. Firstly, the operating frequency F is obtained according to the detected outdoor ambient temperature T4, and the setting is calculated based on the detected outdoor ambient temperature T4 and operating frequency F. Set the exhaust pressure, and then adjust the opening degree of the first throttling element so that the detected exhaust pressure reaches the set exhaust pressure.
[0073] Specifically, when the first detection object is the outdoor ambient temperature T4 and the exhaust pressure, the outdoor ambient temperature T4 is detected when the refrigeration is turned on, the operating frequency F of the compressor is determined according to T4, and the set exhaust pressure Pp is determined according to T4 and F; Among them, Pp=a3*F+b3+c3*T4; the value range of a3, b3, and c3 can correspond to the outdoor ambient temperature T4, for example, when 20℃≥T4: a3 ...
Embodiment 3
[0078] In this embodiment, the first detection object is the outdoor ambient temperature T4. First, the operating frequency F is obtained according to the detected outdoor ambient temperature T4, and the first throttling element is calculated according to the detected outdoor ambient temperature T4 and operating frequency F. The set opening degree, and then adjust the opening degree of the first throttling element to the set opening degree.
[0079] Specifically, when the first detection object is the outdoor ambient temperature T4, the outdoor ambient temperature T4 is detected when cooling starts; the operating frequency F of the compressor is determined according to T4, and the set opening degree Lr of the first throttling element is determined according to T4 and F; Wherein the set opening Lr=a5*F+b5+c5*T4; wherein the value ranges of a5, b5, and c5 can correspond to the outdoor ambient temperature T4, for example, different preset outdoor ambient temperature ranges corresp...
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