Refrigerating and heating type air conditioner 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 heat exchange performance of the evaporator, increasing the compression power consumption of the compressor, affecting the energy efficiency level of the air conditioner, etc. The effect of compressing power consumption, improving energy efficiency, and promoting energy saving and emission reduction
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[0071] Example 1:
[0072] In this embodiment, the first detection object and / or the second detection object are the outdoor ambient temperature T4 and the exhaust temperature. First, the operating frequency F is obtained according to the detected outdoor ambient temperature T4, and the operating frequency F is obtained according to the detected outdoor ambient temperature T4. And the operating frequency F to calculate the set exhaust temperature, and then adjust the opening of the second throttle element so that the detected exhaust temperature reaches the set exhaust temperature. It can be understood that the calculation formula is preset in the electric control element of the heating and cooling air conditioner, and the calculation formula can be specifically defined according to actual conditions.
[0073] 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 cooli...
Example Embodiment
[0082] Example 2:
[0083] In this embodiment, the first detection object and / or the second detection object are the outdoor ambient temperature T4 and the exhaust pressure. First, the operating frequency F is obtained according to the detected outdoor ambient temperature T4, and according to the detected outdoor ambient temperature T4 Calculate the set exhaust pressure with the operating frequency F, and then adjust the opening of the second throttle element so that the detected exhaust pressure reaches the set exhaust pressure.
[0084] 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 cooling 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; Where Pp=a3*F+b3+c3*T4; the value range of a3, b3, and c3 can correspond to the outdoor ambient temperature T4, for exa...
Example Embodiment
[0090] Example 3:
[0091] In this embodiment, the first detection object and / or the second detection object is the outdoor ambient temperature T4. First, the operating frequency F is obtained according to the detected outdoor ambient temperature T4, and according to the detected outdoor ambient temperature T4 and the operating frequency F Calculate the setting opening degree of the second throttle element, and then adjust the opening degree of the second throttle element to the setting opening degree.
[0092] Specifically, when the first detection object is the outdoor ambient temperature T4, the outdoor ambient temperature T4 is detected at the beginning of cooling; the compressor operating frequency F is determined according to T4, and the set opening degree Lr of the second throttle element is determined according to T4 and F; The set opening degree Lr=a5*F+b5+c5*T4; the value range of a5, b5, and c5 can correspond to the outdoor ambient temperature T4, for example, preset dif...
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