Controlling method and controlling device for variable-frequency air conditioner

A technology of frequency conversion air conditioner and control method, which is applied in the direction of control input involving air characteristics, space heating and ventilation control input, heating and ventilation control system, etc., and can solve the problem of reduced operating frequency of frequency conversion air conditioner and large fluctuations in indoor environment , affecting user comfort and other issues, to achieve the effect of improving stability, improving comfort, and improving accuracy

Active Publication Date: 2015-11-25
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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Problems solved by technology

[0003] However, when the indoor ambient temperature is close to the set temperature, the operating frequency of the inverter air conditioner will decrease. When the single-rotor compressor operates at low frequency, it is difficult to control the stable operation of the compressor, which will cause large fluctuations in the indoor environment and affect users. comfort

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  • Controlling method and controlling device for variable-frequency air conditioner
  • Controlling method and controlling device for variable-frequency air conditioner
  • Controlling method and controlling device for variable-frequency air conditioner

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Embodiment Construction

[0033] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0034] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0035] figure 1 A schematic flowchart of a control method for an inverter air conditioner according to an embodiment of the present invention is shown.

[0036] The frequency conversion air conditi...

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Abstract

The invention provides a controlling method and a controlling device for a variable-frequency air conditioner. The variable-frequency air conditioner comprises a compressor and an electronic expansion valve for adjusting the coolant flow. The controlling method for the variable-frequency air conditioner comprises the steps of detecting the operation frequency of the compressor; judging whether the operation frequency of the compressor is smaller than or equal to a preset frequency value; and controlling the openness of the electronic expansion valve to be increased when the operation frequency of the compressor is smaller than or equal to the preset frequency value to control the variable-frequency air conditioner to be in a low-frequency stable operation mode. By means of the technical scheme, the stability of the variable-frequency air conditioner in low-frequency operation is improved, zero fluctuation or smaller fluctuation of indoor temperature is guaranteed, and the user comfortableness is improved.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a control method for an inverter air conditioner and a control device for an inverter air conditioner. Background technique [0002] With the gradual popularization of inverter air conditioners, the proportion of mid-to-high-end inverter air conditioners has also increased. Mid-to-high-end inverter air conditioners usually use electronic expansion valves instead of capillary tubes for throttling. Electronic expansion valve models are superior in terms of energy saving and comfort. for capillary models. In the related electronic expansion valve control technology, the flow rate of the electronic expansion valve changes in direct proportion to the frequency of the compressor, so that when the compressor operates at low frequency, the refrigerant flow rate of the electronic expansion valve type is smaller than that of the capillary type, thus This makes the electro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/62F24F11/64F24F2110/10F24F2110/12
Inventor 谢李高李金波陈明瑜卢海生
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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