Control method and device of frequency conversion air conditioner and frequency conversion air conditioner
A technology of an inverter air conditioner and a control method, which is applied to the inverter air conditioner, the control method and device field of the inverter air conditioner, and can solve the problems of poor noise, excessive pipeline stress, and unstable operation process of the air conditioner compressor.
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 have a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The attached drawings are for reference and explanation purposes only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a number of details are used to provide a sufficient understanding of the disclosed embodiments. However, without these details, one or more embodiments can still be implemented. In other cases, in order to simplify the drawings, well-known structures and devices may be simply shown. In order to have a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be describe...
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The invention relates to a control method and device of a frequency conversion air conditioner and the frequency conversion air conditioner. The control method of the frequency conversion air conditioner comprises the steps of working out a target frequency f according to the inner coiled pipe temperature Tp of an indoor unit of the air conditioner; judging whether or not the target frequency f islarger than the winding boundary point frequency f4, if the f is smaller than the f4, selecting a first winding mode of a motor, enabling the frequency of an air conditioner compressor to be sequentially operated to two pause platforms to continue in a preset period of time respectively, and making the air conditioner compressor to be operated at the target frequency f. By judging whether or notthe target frequency f is larger than the winding boundary point frequency f4, the motor of the air conditioner compressor is controlled to be connected to a first winding or a second winding, the operation frequency and operation time of the compressor on each pause platform (oil return platform) are controlled, and the compressor is operated stably and reliably.
Description
Technical field [0001] This application relates to the technical field of air conditioners, for example, to a control method and device of an inverter air conditioner and an inverter air conditioner. Background technique [0002] At present, with the development of 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 conditioner compressor of the existing air conditioner will resonate with the casing, 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, with the different indoor and outer working conditions, the internal unit has different operating loads. For some special situations, the operation of the air-conditioning compressor will be unstable. This may cause the air conditioner comp...
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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