Variable-frequency air conditioner controlling method and device as well as 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 excessive pipeline stress, unstable compressor operation, and abnormal operation of air conditioner compressors and other problems to achieve stable and reliable operation
Active Publication Date: 2020-10-30
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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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, depending on the indoor and outdoor 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
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[0029] 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. 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...
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The application discloses a variable-frequency air conditioner controlling method and device as well as a variable-frequency air conditioner, and belongs to the field of compressors. According to themethod, a target frequency f is calculated based on the temperature Tp of an inner coil pipe of an air-conditioner inner unit; and whether the target frequency f is larger than a winding boundary point frequency f4 is judged, and if f is smaller than f4, a first winding mode of an electromotor is selected, an air-conditioner compressor is enabled to operate until frequencies of three pause platforms respectively last for preset durations in sequence, and the air-conditioner compressor is enabled to operate to the target frequency f. The target frequency is determined based on the temperature Tp of the inner coil pipe, whether the target frequency f is larger than the winding boundary point frequency f4 is judged, the electromotor of the air-conditioner is selected to be wired in the firstwinding mode or a second winding mode, and then the operation frequency and operation duration of the compressor at different pause platforms (oil return platforms) are controlled, so the compressor is more stable in the process of reaching the target frequency and the operation of the compressor is stable and reliable.
Description
technical field [0001] The present application relates to the technical field of air conditioning, for example, to a control method and device for an inverter air conditioner and the 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 indoor and outdoor 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, t...
Claims
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IPC IPC(8): F24F11/64F24F11/30F24F11/86F24F13/24F24F140/20
CPCF24F11/64F24F11/30F24F11/86F24F13/24F24F2140/20F24F2013/247Y02B30/70
Inventor 罗荣邦许文明
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD