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Control method for high temperature refrigeration of multi-split air conditioner

A multi-connected air conditioner and control method technology, applied in the direction of control input involving air characteristics, space heating and ventilation control input, heating and ventilation control system, etc., can solve the problem of low cooling efficiency, inability to improve the cooling effect of air conditioning, and reduce high pressure Pressure and other problems to achieve the effect of reducing high pressure, improving cooling effect and increasing area

Active Publication Date: 2016-06-08
QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD
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Problems solved by technology

[0005] In view of this, an object of the present invention is to propose a control method for high-temperature refrigeration of multi-connected air conditioners, so as to solve the problem that in the existing control methods for high-temperature refrigeration of multi-connected air conditioners, the air conditioner itself cannot be improved while reducing the high pressure. Cooling effect, the problem of low cooling efficiency

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  • Control method for high temperature refrigeration of multi-split air conditioner

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Embodiment Construction

[0020] The following description and drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. These embodiments of the present invention may be referred to herein, individually or collectively, by the term "invention", which is for convenience only and is not intended to automatically limit the application if in fact more than one invention is disclosed The scope is any individual invention or inventive concept.

[0021] Before introducing the specific embodiments of the present invention, some technical ter...

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Abstract

The invention discloses a control method for the high temperature refrigeration of a multi-split air conditioner. The control method comprises the following steps: detecting the operation mode and the operation state of the multi-split air conditioner in a real-time manner; when the condition that the multi-split air conditioner refrigerates is detected, detecting whether the operation state of the multi-split air conditioner meets the first system default condition or not; and when the operation state of the multi-split air conditioner meets the first system default condition, adjusting the heat exchange state of external unit modules stopping operation and a system refrigerant, wherein compressors of the external unit modules stopping operation keep the stopping state. In the control method, condensers of the external unit modules stopping operation in an outdoor unit system of the multi-split air conditioner are in heat exchange with the system refrigerant, so that the heat exchange area between the system refrigerant and the outdoor unit system can be increased, the self refrigeration effect of the multi-split air conditioner is improved when the high pressure of the outdoor unit system is effectively reduced, and the applicability is high.

Description

technical field [0001] The invention belongs to the technical field of multi-connected air conditioners, and in particular relates to a control method for high-temperature refrigeration of multi-connected air conditioners. Background technique [0002] When the multi-split air conditioner is cooling at high temperature, due to the high outdoor ambient temperature and poor heat dissipation effect, the external unit will often cause high high pressure when it is running, so that the system enters high pressure protection, and the compressor can only operate at a low frequency. down operation, or even an alarm shutdown, seriously reducing the cooling effect of the air conditioner. [0003] For this kind of situation that occurs when the multi-connected air conditioner is cooling at high temperature, the existing methods usually adjust the refrigerant flow rate of the system by adjusting the opening of the electronic expansion valve of the internal and external units, thereby re...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/62F24F11/64F24F11/65F24F11/77F24F11/83F24F11/84F24F2110/00F24F2110/40Y02B30/70
Inventor 禚百田时斌程绍江王军邵文俊
Owner QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD
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