Air conditioner and control method thereof

A control method and air conditioner technology, which is applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve problems such as compressor liquid return, indoor unit freezing, etc., to achieve low-temperature refrigeration, reduce refrigeration effect, and improve refrigeration effect Effect

Active Publication Date: 2015-11-11
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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AI Technical Summary

Problems solved by technology

And when the outdoor ambient temperature is low, if the room still needs to cool at this time, the air conditioner will be in a higher frequency state when it operates according to the existing control mode, because the outdoor heat exchanger is too effective, it is easier to cause Indoor unit icing, compressor liquid return, etc.

Method used

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  • Air conditioner and control method thereof
  • Air conditioner and control method thereof

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Embodiment Construction

[0032] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0033] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular ...

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Abstract

The invention discloses an air conditioner and a control method thereof. The air conditioner comprises a compressor, a reversing assembly, an indoor heat exchanger and an outdoor heat exchanger, wherein an exhaust port and a return air inlet are formed in the compressor; the reversing assembly is provided with a first valve port, a second valve port, a third valve port and a fourth valve port, the first valve port is communicated with the exhaust port, and the fourth valve port is communicated with the return air inlet; the first end of the indoor heat exchanger is connected with the second valve port, and the second end of the indoor heat exchanger is connected with a throttling assembly with a throttling depressurization effect and adjustable opening degree; the outdoor heat exchanger comprises a plurality of heat exchange parts, the first end of each heat exchange part is connected with the third valve port, and the second end of each heat exchange part is connected with the throttling assembly; the two ends of at least one heat exchange part are respectively connected with control valves used for controlling the on-off of a refrigerant flow path in series. According to the air conditioner, the cryogenic refrigeration of the air conditioner can be realized, and the freezing of an indoor unit and the liquid return of the compressor caused by lower refrigerant temperature can be avoided.

Description

technical field [0001] The invention relates to the technical field of temperature adjustment equipment, in particular to an air conditioner and a control method thereof. Background technique [0002] In the existing frequency conversion air conditioner control system, the operation mode of the air conditioner is to adjust the frequency of the compressor based on the set temperature and the current indoor ambient temperature as data. If the difference between the indoor ambient temperature and the set temperature is large, the compressor will run at high frequency, and if the difference between the indoor ambient temperature and the set temperature is small, the compressor will run at low frequency. And when the outdoor ambient temperature is low, if the room still needs to cool at this time, the air conditioner will be in a higher frequency state when it operates according to the existing control mode, because the outdoor heat exchanger is too effective, it is easier to cau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B13/00F25B41/04F25B49/02F25B41/20
CPCF25B13/00F25B49/02F25B2313/02741F25B2700/2106F25B2600/25F25B41/20
Inventor 李文博
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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