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Refrigeration control method, control device and variable frequency air conditioner

A technology of refrigeration control and frequency conversion air conditioner, which is applied in the fields of refrigeration control methods, frequency conversion air conditioners, and control devices, which can solve the problems of uncomfortable refrigeration and achieve the effects of comfortable refrigeration, cool but not cold refrigeration, and comfortable air temperature

Active Publication Date: 2015-06-10
HAIER GRP CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cooling control method and control device to solve the problem of uncomfortable cooling caused by the cold air blown out by the existing inverter air conditioner

Method used

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  • Refrigeration control method, control device and variable frequency air conditioner
  • Refrigeration control method, control device and variable frequency air conditioner

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Embodiment Construction

[0027] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] See figure 1 , which is a flow chart of the first embodiment of the refrigeration control method for the inverter air conditioner of the present invention.

[0029] Such as figure 1 As shown, the specific process of the refrigeration control method in this embodiment is as follows:

[0030] Step 11: cooling operation, detecting the indoor temperature, and performing room temperature PID calculation according to the indoor temperature difference to obtain the first target frequency.

[0031] Specifically, when the inverter is controlled to start up and perform cooling operation, the indoor temperature of the room where the inverter air conditioner is located is detected. The detection of the indoor temperature is realized by using the prior art. For example, the temperature of the incoming air is d...

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Abstract

The invention discloses a refrigeration control method, a control device and a variable frequency air conditioner. The method comprises steps as follows: detecting the indoor temperature in the refrigeration operation process, calculating the indoor temperature difference, and performing PID (proportion integration differentiation) operation on room temperature according to the indoor temperature difference to obtain a first target frequency; comparing the indoor temperature with a set comfortable temperature; controlling a compressor according to the first target frequency if the indoor temperature is not lower than the comfortable temperature; if the indoor temperature is lower than the comfortable temperature, detecting the coil temperature of an evaporator of the variable frequency air conditioner, calculating the temperature difference between the coil temperature and a set coil target temperature to obtain a coil temperature difference, and performing PID operation on the coil temperature according to the coil temperature difference to obtain a second target frequency; controlling the compressor according to the smaller one of the first target frequency and the second target frequency. With the adoption of the refrigeration control method, the control device and the variable frequency air conditioner, the problem about refrigeration comfortlessness caused by cold air blown by an existing variable frequency air conditioner can be solved.

Description

technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to a refrigeration control method, a control device and an inverter air conditioner. Background technique [0002] In the hot summer, many people cannot do without the air conditioner all day and all night. However, blowing air conditioners for a long time has many harms to the human body, and it is easy to get air conditioner diseases. [0003] Although the existing inverter air conditioner can control the operating frequency of the compressor, its control basis is only the indoor temperature and the set indoor target temperature, and will not change the air outlet temperature of the air conditioner. And in order to reach fast refrigeration, the outlet air temperature of existing air conditioner will be far lower than setting temperature, and the air outlet air temperature of air conditioner is low, and the wind that blows out is cold wind. When the cold wind...

Claims

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Application Information

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IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/62F24F11/64
Inventor 程永甫宋世芳刘聚科徐贝贝
Owner HAIER GRP CORP
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