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Method for controlling inverter air conditioner

A technology of inverter air conditioner and control method, applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve the problems of no way to achieve, reduce the operating frequency of the compressor, reduce the cooling speed, etc., and reach the scope of application Wide, improved comfort, constant temperature effect

Active Publication Date: 2010-06-02
MIDEA GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This scheme only considers how to achieve rapid cooling or heating, which is suitable for most people; however, it does not take into account health problems, and there are deficiencies: for the elderly and newborns, pregnant women, and people with weak constitutions , cannot adapt to the lower temperature of the air outlet of the air conditioner and the rapid decrease or increase of the indoor air
In addition, when the frequency conversion air conditioner is close to the set target temperature, the frequency conversion control method is used to operate, and the operating frequency of the compressor will also be reduced, so that the cooling speed will decrease accordingly. The method realizes to run the refrigeration fast at the highest fixed frequency speed
[0004] In addition, if the temperature difference is reduced by increasing the indoor target temperature under cooling conditions, the compressor frequency and cooling capacity of the inverter air conditioner will decrease, and the indoor temperature will decrease slowly.
However, it is necessary to wait for the indoor temperature to reach the last set value, and then set relatively small temperature differences multiple times to finally reach the required temperature, which makes the whole setting process very cumbersome.

Method used

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  • Method for controlling inverter air conditioner
  • Method for controlling inverter air conditioner
  • Method for controlling inverter air conditioner

Examples

Experimental program
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Effect test

Embodiment 1

[0024] see figure 1 and figure 2 , which is the change diagram and frequency schematic diagram of the indoor temperature when the working frequency is set differently according to Embodiment 1 of the present invention, such as figure 2 Shown: The ordinate is the frequency Hz of the compressor, and the abscissa is the number n of working frequency selectable by the user, that is, the set value. It can be seen from the figure that the highest frequency Fmax of the compressor is 120 Hz, and the lowest frequency is 120 Hz. The frequency Fmin is 18 Hz, and there are two intermediate frequency values ​​to choose from, which are 100 Hz and 37 Hz, and the working frequency is set to be uneven (of course, there are more optional values, or no file number , and directly modulate the frequency value, all belong to the equivalent control mode of the present invention, which are not listed one by one here).

[0025] When the air conditioner is running, the user first sets the indoor ta...

Embodiment 2

[0038] see image 3 , is the display diagram of the different setting working frequency of Embodiment 2, as shown in the figure: the ordinate is the frequency Hz of the compressor, and the abscissa is the number n of working frequency selectable by the user. It can be seen from the figure that The highest frequency Fmax of the compressor is 150 Hz, and the lowest frequency Fmin is 9 Hz, where n is 0, 1, 2, 3, 4, 5, N, where N=6. That is, when using control, the user can choose seven frequencies, respectively, when n=0, the corresponding frequency is Fmax, when the user selects this mode, the compressor uses the highest frequency for cooling / heating operation; and so on, When the user respectively selects 1, 2, 3, 4, 5, N (N=6), the corresponding operating frequencies of the compressors are 126.5 Hz, 103 Hz, 79.5 Hz, 56 Hz, 32.5 Hz, 9 Hz. The operating frequencies set in the second embodiment are evenly distributed, and the selection method is as follows: set the highest frequ...

Embodiment 3

[0042] When N is 20, 21 selectable operating frequencies can be obtained through calculation, and the intervals between the 21 selectable operating frequencies are equal, that is to say, the 21 selectable operating frequencies are equally divided, However, the number of operating frequencies that are actually provided to the user to select is less than 21. In this embodiment, 9 different operating frequencies can be arbitrarily selected from the 21 selectable operating frequencies. Finally, the 9 The frequency interval between the two alternative operating frequencies is not the same.

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Abstract

The invention discloses a method for controlling an inverter air conditioner, which is characterized in that an indoor target temperature and a working frequency of a compressor are preset; after a control component of the inverter air conditioner receives the indoor target temperature and the working frequency set by a user and before the indoor temperature reaches the indoor target temperature, the working frequency of the compressor adopts a fixed frequency mode to work; after the indoor temperature reaches the indoor target temperature, the working frequency of the compressor adopts a variable frequency control mode to work; and the working frequency of the compressor is not higher than the working frequency set by the user. The user sets the indoor target temperature and the working frequency of the compressor through a remote controller key or a control key on an indoor unit of the inverter air conditioner. The working frequency of the compressor has more than two set values which are uniformly distributed or not uniformly distributed. The method has the characteristics of flexible operation, good comfort, relatively constant temperature, small fluctuation, comfortable use, low energy consumption and broad application range.

Description

technical field [0001] The present invention relates to an inverter air conditioner, in particular to a control method for an inverter air conditioner of a cooling-only type, a cooling / heating type or a pure heating type, etc. Background technique [0002] Most of the inverter air conditioner control schemes used in the market use the temperature difference between the indoor temperature and the indoor target temperature predetermined by the user as the basis for the operating frequency of the inverter air conditioner compressor. Cooling or heating capacity, after reaching the set indoor target temperature, the low-frequency operation of the inverter air conditioner makes the temperature range value more stable and enhances comfort. In addition, it also appears to increase the indoor temperature change as an auxiliary parameter, which also participates in affecting the frequency change of the compressor. [0003] Although, technically speaking, the frequency change of this ...

Claims

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Application Information

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IPC IPC(8): F24F11/00
Inventor 李金波李强刘阳
Owner MIDEA GRP CO LTD
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