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

A technology of inverter air conditioner and control method, which is applied in the direction of noise suppression, space heating and ventilation, heating and ventilation control system, etc., can solve the problems of excessive pipeline stress, poor noise, unstable compressor operation, etc.

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

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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, dep

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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 a 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; and a relation between the target frequency f and the winding demarcation point frequency f4 of a motor of an air conditioner compressor is judged, the motor winding mode and the oil return pause strategy of the air conditioner are determined according to the relation between the target frequency f and the winding demarcation point frequency f4, and oil return pause platforms are correspondingly inserted in the process of adjusting the air conditioner frequency to the winding demarcation point frequency f4 and adjusting the winding demarcation point frequency f4 to the target frequency f. 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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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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