Circuit, method, device and computer storage medium for air conditioner refrigerant leakage protection
An air-conditioning indoor unit and air-conditioning technology, applied in the direction of control input related to air characteristics, heating methods, mechanical equipment, etc., can solve problems such as interfering with refrigerant, leakage, and affecting the normal operation of the air conditioner, and achieve the goal of improving accuracy and stability Effect
Active Publication Date: 2021-06-29
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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Problems solved by technology
It can be seen that the refrigerant is an indispensable substance for air conditioning, and once the refrigerant leaks, it will affect the normal operation of the air conditioner.
[0003] Existing fixed-frequency air conditioners can judge whether the refrigerant on the pipeline of the outdoor unit system leaks by obtaining the temperature of the coil in the indoor unit of the air conditioner and the ambient temperature. However, due to factors such as environmental changes and machine operating conditions, the coil temperature and The accuracy of the ambient temperature, thus, will also interfere with the judgment of refrigerant leakage
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[0044]The following description and drawings illustrate specific embodiments of the invention sufficiently 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. Herein, various embodiments may be referred to individually or collectively by the term "invention", which is for convenience only and is not intended to automatically limit the scope of this application if in fact more than one invention is disclosed. A single invention or inventive concept. Herein, relational terms such as first and second etc. are used only to distinguish one entity or operation from another witho...
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The invention discloses a circuit, a method, a device and a computer storage medium for air conditioner refrigerant leakage protection, and belongs to the technical field of air conditioners. The air conditioner refrigerant leakage protection circuit includes: a pressure switch arranged on the pipeline of the outdoor unit system of the air conditioner, and a circuit breaker arranged on the live line of the compressor of the air conditioner, wherein one end of the pressure switch is connected to the air conditioner through a protection relay. The first port of the control circuit board is connected; the other end of the pressure switch is connected to the circuit breaker; when the pressure switch is in a power-off state, the pressure switch is a normally closed switch; In the working state, when it is detected that the pressure value in the pipeline of the outdoor unit system is lower than the set pressure value, the pressure switch is disconnected, so that the circuit breaker is in the disconnected state, and the compressor is disconnected and closed. state. In this way, the accuracy of refrigerant leakage judgment can be improved, the compressor of the air conditioner can be protected, and the stability of the equipment can be improved.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to a circuit, method, device and computer storage medium for air conditioner refrigerant leakage protection. Background technique [0002] Along with the raising of living standard, air conditioner is used more and more generally. After the air conditioner is powered on, the low-pressure steam of the refrigerant in the refrigeration system is sucked into the compressor and compressed into high-pressure steam, and then discharged to the condenser. The indoor air circulates continuously to achieve the purpose of lowering the temperature. It can be seen that the refrigerant is an indispensable substance for the air conditioner, and once the refrigerant leaks, it will affect the normal operation of the air conditioner. [0003] Existing fixed-frequency air conditioners can judge whether the refrigerant on the pipeline of the outdoor unit system leaks by obtaining the temperatu...
Claims
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IPC IPC(8): F24F11/89F24F11/88F24F11/64F24F110/10
CPCF24F11/00F24F11/89F24F2110/10
Inventor 许承刚闫加明吴云诗于德彤徐丽梅苏宁
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD