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Control method and control device of variable frequency air conditioner and variable frequency air conditioner

A technology of frequency conversion air conditioner and control method, which is applied in the fields of noise suppression, space heating and ventilation, heating and ventilation control system, etc., and can solve the problem of unstable operation process of air conditioner compressor, failure of normal operation of air conditioner compressor, compressor Unstable operation and other problems, to achieve the effect of fine control, high torque output, and reduced starting current

Active Publication Date: 2020-10-30
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The air-conditioning compressor of the existing air conditioner will resonate with the casing, motor, pipeline, etc. when running at certain frequencies, resulting in poor noise and excessive pipeline stress
When the air conditioner is protected and released, it should run slowly to stabilize the system. However, depending on the outdoor and external working conditions, the operating load of the indoor unit is different. For some special cases, the operation process of the air conditioner compressor will be unstable. As a result, the air conditioner compressor may not operate normally, resulting in unstable operation of the compressor

Method used

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  • Control method and control device of variable frequency air conditioner and variable frequency air conditioner
  • Control method and control device of variable frequency air conditioner and variable frequency air conditioner
  • Control method and control device of variable frequency air conditioner and variable frequency air conditioner

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Embodiment Construction

[0031] In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

[0032] see in conjunction figure 1 As shown, the embodiment of the present disclosure provides a control method for an inverter air conditioner, including:

[0033] S1. Determine the target frequency f of the air ...

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Abstract

The invention relates to a control method and control device of a variable frequency air conditioner and the variable frequency air conditioner. The control method of the variable frequency air conditioner comprises the steps that the target frequency f of air conditioner operation is determined according to the outdoor environment temperature Tao; the relation between the target frequency f and the winding demarcation point frequency f4 of a motor of an air conditioner compressor is judged, and an oil return pause platform is inserted in the process that the air conditioner frequency is adjusted to the winding demarcation point frequency f4 and the winding demarcation point frequency f4 is adjusted to the target frequency f; and the frequency of the oil return pause platform inserted in the process that the air conditioner frequency is adjusted to the winding demarcation point frequency f4 is smaller than the frequency of the oil return pause platform inserted in the process that theair conditioner frequency is adjusted to the target frequency f from the winding demarcation point frequency f4. According to the control method of the variable frequency air conditioner, the target frequency f of the air conditioner, state switching of the coil winding and air conditioner oil return control can be combined, fine control over operation of the air conditioner is achieved, and the operation energy efficiency of the air conditioner is improved.

Description

technical field [0001] The present application relates to the technical field of air conditioning, for example, relates to a control method, a control device and an inverter air conditioner. Background technique [0002] At present, with the development of the economy and the improvement of living standards, people have a higher demand for inverter air conditioners with better comfort adjustment and energy saving. [0003] The air-conditioning compressor of the existing air conditioner will resonate with the shell, the motor, the pipeline, etc. when running at certain frequencies, resulting in poor noise and excessive pipeline stress. When the air conditioner is protected and released, it should run slowly to stabilize the system. However, depending on the outdoor and external working conditions, the operating load of the indoor unit is different. For some special cases, the operation process of the air conditioner compressor will be unstable. As a result, the air condition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/64F24F11/30F24F11/86F24F13/24F24F110/12
CPCF24F11/64F24F11/30F24F11/86F24F13/24F24F2110/12F24F2013/247Y02B30/70
Inventor 罗荣邦许文明
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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