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Frequency control method and air conditioner

A technology of frequency control and frequency, which is applied in the field of frequency control methods and air conditioners, and can solve the problems of unsuitable water heaters, single temperature sensors for water heaters, and multiple temperature sensors

Active Publication Date: 2020-07-31
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The internal temperature sensor of the water heater is relatively single, and the available data of the system fed back is less; the internal temperature sensor of the air conditioner has many internal temperature sensors, and the available data of the system is more comprehensive
[0003] When the indoor unit connected to the outdoor unit of the multi-split air conditioner has both the indoor unit of the ordinary air conditioner and the water heater, since the control method of the target frequency of the compressor when the internal mechanism of the air conditioner is in heating operation uses more parameters of the internal temperature sensor of the air conditioner, and There is only a water temperature sensor in the water heater, so the original compressor frequency control method will not be applicable when the water heater is working (heating)

Method used

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  • Frequency control method and air conditioner

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Effect test

Embodiment 1

[0024] figure 1 It schematically shows the flow chart of the above frequency control method provided by the first embodiment of the present invention, as shown in figure 1 As shown, the method may include operations S101-S104, for example.

[0025] S101. Obtain the external environment temperature and the pressure value of the exhaust pipe of the air conditioner compressor.

[0026] In a feasible mode of this embodiment, the AD sampling port of the main chip collects the data on the external ambient temperature sensor and the exhaust pipe high-pressure sensor, calculates the average value of multiple samples, and converts the data in degrees Celsius (°C) through an algorithm. The temperature value in units and the pressure value in megapascals (Mpa), so as to obtain the external ambient temperature (T 外环 ) and compressor discharge pipe pressure (P 排气 ).

[0027] S102, judging whether the continuous running time of the compressor is greater than a preset time threshold at t...

Embodiment 2

[0040] This embodiment provides an air conditioner. The air conditioner includes a computer-readable storage medium storing a computer program and a processor. When the computer program is read and run by the processor, the above-mentioned first embodiment can be implemented. Methods. For the advantages of the air conditioner provided in this embodiment, please refer to the first embodiment above, which will not be repeated here.

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Abstract

The invention provides a frequency control method for controlling a target frequency of a variable refrigerant flow air conditioner. The frequency control method comprises the following steps of acquiring a current external environment temperature and a pressure value of an exhaust pipe of a compressor of the air conditioner; judging whether the time of continuous operation of the compressor at the moment is greater than a preset time threshold value or not; if so, adjusting the frequency of the compressor according to the pressure value; and otherwise, adjusting the frequency of the compressor according to the external environment temperature. Different frequency control modes are selected according to the operating time of the compressor. In an initial starting stage of the compressor, parameters of a system are unstable. The frequency of the compressor is adjusted according to the parameter: the external environment temperature which is not affected by system operation in the air conditioner. When the compressor operates stably, the frequency of the compressor is adjusted according to a pressure value of the exhaust pipe, so that the frequency control method is suitable for controlling the frequency of the compressor, including a water heater, in an indoor unit of the variable refrigerant flow air conditioner.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a frequency control method and an air conditioner. Background technique [0002] The working structure of the water heater is quite different from that of the air conditioner. The internal temperature sensor of the water heater is relatively single, and the available data of the system fed back is less; the internal temperature sensor of the air conditioner is more, and the available data of the system is more comprehensive. [0003] When the indoor unit connected to the outdoor unit of the multi-split air conditioner has both the indoor unit of the ordinary air conditioner and the water heater, since the control method of the target frequency of the compressor when the internal mechanism of the air conditioner is in heating operation uses more parameters of the internal temperature sensor of the air conditioner, and There is only a water temperature sensor in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/32F24F11/61F24F11/64F24F11/86F24F11/88F24F5/00F24H4/02F24H9/20F24F110/12
CPCF24F11/32F24F11/61F24F11/64F24F11/86F24F11/88F24F5/0096F24H4/02F24H9/2007F24F2110/12
Inventor 李钰
Owner NINGBO AUX ELECTRIC
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