A multi-connected refrigerant leakage detection method, device and air conditioner
A leak detection, multi-connection technology, applied in heating methods, mechanical equipment, space heating and ventilation, etc., can solve problems such as many components, affecting customer experience and unit service life, and user inconvenience.
Active Publication Date: 2021-09-21
NINGBO AUX ELECTRIC
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Problems solved by technology
[0003] However, the air conditioning system, especially the multi-connection system, has many components, complicated installation, and many leakage points; when the refrigerant leaks, the unit will run in a state of insufficient refrigerant for a long time, which will seriously affect the customer experience and the service life of the unit; If the refrigerant is insufficient to a certain extent, the unit will shut down, which will bring great inconvenience to users and cause poor user experience
[0004] In the existing technology, there are defects such as inconvenient detection, difficult maintenance and low operation reliability
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[0093] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0094] Such as figure 1 , figure 1 It is the system schematic diagram of the air conditioner provided in this embodiment, which provides an air conditioner in this embodiment, wherein, in this embodiment, the air conditioner can be multi-connected, in figure 1 Only one internal unit is shown. Of course, in other embodiments, the air conditioner may also be an ordinary household air conditioner or the like. Wherein, the air conditioner can perform refrigerant leakage detection, and the air conditioner can improve the accuracy and reliability of the refrigerant leakage detection, thereby improving the reliability of the air conditioner.
[0095] Wherein, the air conditioner includes a controller, which may be an integrated circuit chip an...
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The invention provides a multi-connected refrigerant leakage detection method, device and air conditioner, and relates to the technical field of air conditioners. The multi-connected refrigerant leakage detection method includes: calculating a first rate of change according to a first system parameter value at a first preset time and a second system parameter value at a second preset time. According to the first system parameter value, the second system parameter value, the first rate of change and the preset rate of change, it is judged whether the multi-connector is leaking refrigerant. If it is, and it is not the first time, it is determined that the multi-line refrigerant leaks. If it is the first time, conduct the first re-inspection, and judge whether the multi-line refrigerant leaks according to the result of the first re-inspection. If not, if the first rate of change satisfies the preset condition, it is determined that there is no refrigerant leakage in the multi-connector. If it is not satisfied, perform a second re-inspection, and judge whether the multi-line refrigerant leaks according to the result of the second re-inspection. The multi-connected refrigerant detection method, device and air conditioner provided by the present invention can improve the accuracy and reliability of refrigerant leakage detection.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to a multi-connected refrigerant leakage detection method and device, and an air conditioner. Background technique [0002] At present, multi-connected air conditioning units often require one outdoor unit to drive multiple indoor units, and the amount of refrigerant is an important factor to ensure the comfort and reliability of the unit. [0003] However, the air-conditioning system, especially the multi-connection system, has many components, complicated installation, and many leakage points; when the refrigerant leaks, the unit will run in a state of insufficient refrigerant for a long time, which will seriously affect the customer experience and the service life of the unit; If the refrigerant is insufficient to a certain extent, the unit will shut down, which will bring great inconvenience to users and cause poor user experience. [0004] In the prior art, there are ...
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IPC IPC(8): F24F11/36F24F11/64F24F11/65F24F11/70F24F11/88F24F140/12
CPCF24F11/36F24F11/64F24F11/65F24F11/70F24F11/88F24F2140/12
Inventor肖旭东朱礼晋李兆东牛晓峰
OwnerNINGBO AUX ELECTRIC