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Control method for improving comfortability of frequency conversion air conditioner wind-discharging temperature

A technology of inverter air conditioner and control method, which is applied in heating and ventilation control systems, electrical program control, space heating and ventilation, etc., can solve the problems of reducing compressor displacement and prolonging the start-up time of air conditioners, so as to reduce the cooling of air conditioners. time, reduce waiting time, and reduce energy consumption

Active Publication Date: 2009-11-25
MIDEA GRP CO LTD
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Problems solved by technology

In addition, we can also see that, in order to avoid the impact of excessive starting current, the variable frequency air conditioner adopts the method of increasing the frequency of the air conditioner with a gradient, which reduces the displacement of the compressor at the beginning of the air conditioner's start-up, which further causes Extend the time for the air conditioner to start and reach normal operation

Method used

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  • Control method for improving comfortability of frequency conversion air conditioner wind-discharging temperature
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  • Control method for improving comfortability of frequency conversion air conditioner wind-discharging temperature

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0038] see Figure 1-Figure 2 , which is Embodiment 1 of the present invention, the first period T used is preset by the user, the speed of the compressor is operated at a frequency of 5 Hz at a fixed speed, and when the first period T ends, normal cooling / heating is automatically started model; figure 1 , the unit of the abscissa is the time interval, and each time interval in Embodiment 1 is 2 minutes, and the ordinate is the frequency, and the unit is Hertz. The curves in the figure show the values ​​of the operating frequency of the compressor at different time intervals during the entire start-up process of the inverter air conditioner.

[0039] First, in Embodiment 1, the precooling / preheating mode starts from point A, and the operating frequency of the compressor rises from 0 Hz to 5 Hz, and remains at the first rotating speed with a frequency...

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Abstract

A control method for improving comfortability of frequency conversion air conditioner wind-discharging temperature is characterized in that before opening the refrigeration / heat-production of the frequency conversion air conditioner, the frequency conversion air conditioner runs in a precooling / preheating mode, by means of alterring an operation frequency of a compressor and an operation frequency of a fan of an outdoor heat excharger. The control method includes the following steps: opening the precooling / preheating mode; the compressor operates at a first rotary speed during a first period; the fan of the outdoor heat excharger operates at a second rotary speed during the first period; opening the refrigeration / heat-production mode, the fans of the compressor and the outdoor heat excharger operate at a normal rotary speed. The first rotary speed is a speed having a frequency number of 0-37.5Hz, the second rotary speed is a speed having a frequency number of 0-30Hz. By means of the invention, it is capable of ensuring a temperature of an air outlet of an indoor set of the air conditioner to be a user setting temperature stably, so as to reduce a time for cool-down of the air conditioner.

Description

technical field [0001] The invention relates to an air conditioner control method, in particular to a control method for improving the comfort of the air outlet temperature of an inverter air conditioner. Background technique [0002] Generally, the air conditioner performs a refrigeration cycle or a heating cycle according to the user's requirements. When the indoor heat exchanger of the air conditioner is used as a condenser, it is a heating cycle; when the indoor heat exchanger of the air conditioner is used as an evaporator, it is a refrigeration cycle. See attached figure 2 , which is a simplified diagram of the refrigeration / heating cycle of a general air conditioner. [0003] The operation of the heating cycle is as follows: first, the refrigerant gas is compressed in the compressor 1, and the compressed refrigerant is reversed by the four-way valve 2, and then sent to the indoor heat exchanger 3, and the fan 6 of the indoor heat exchanger is running , The indoor ai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00G05B19/04
Inventor 李金波李强刘阳
Owner MIDEA GRP CO LTD
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