Control method and control system for returned liquid protection function, and air conditioner
A protection function and control method technology, applied in heating and ventilation control systems, control input related to air characteristics, heating and ventilation safety systems, etc., can solve the hidden danger of liquid return in the refrigeration process, affect user comfort, and affect the long-term compressor Operational reliability and other issues, to achieve the effect of strong practicability and solve the serious problem of liquid back
Active Publication Date: 2017-02-22
HANDAN MIDEA REFRIGERATION EQUIP
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Problems solved by technology
[0002] The existing air-conditioning system can effectively improve the heat exchange efficiency of refrigeration and heating, but because of the variety and complexity of the user's use and environmental conditions, there is a hidden danger of liquid return in the refrigeration process, which affects the long-term operation reliability of the compressor, and returns It also affects the user's comfort when liquid is used, so the problem of liquid return must be avoided
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[0041] 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.
[0042] 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.
[0043] The embodiment of the first aspect of the present invention proposes a control method for the liquid back protection function, which is used in an air conditioner, and the air conditioner incl...
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The invention provides a control method for a returned liquid protection function, a control system for the returned liquid protection function and an air conditioner. The control method for the returned liquid protection function comprises the following steps: detecting detection parameters such as the running frequency of an outdoor unit, the wall temperature of an exhaust pipe of a compressor and the opening degree of an electronic expansion valve during operation when the air conditioner is under a refrigeration mode; making the air conditioner execute the returned liquid protection function if the parameters satisfy the entry conditions of the returned liquid protection function. The control method and the control system provided by the invention are capable of effectively solving the problem of serious liquid return caused when the air conditioner runs at the refrigeration mode, capable of realizing accurate judgment according to an actual working environment and high in practicability.
Description
technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a control method for liquid back protection function, a control system for liquid back protection function and an air conditioner. Background technique [0002] The existing air-conditioning system can effectively improve the heat exchange efficiency of refrigeration and heating, but because of the variety and complexity of the user's use and environmental conditions, there is a hidden danger of liquid return in the refrigeration process, which affects the long-term operation reliability of the compressor, and returns Liquid return also affects user comfort, so liquid return must be avoided. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art. [0004] Therefore, an object of the present invention is to provide a method for controlling the liquid back protection ...
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IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/61F24F11/62F24F11/64F24F11/65F24F11/83F24F11/84F24F2110/00
Inventor 兰恒超任超
Owner HANDAN MIDEA REFRIGERATION EQUIP