Air conditioner and coolant leakage warning method for air conditioner

A technology for air conditioners and refrigerants, applied to refrigerators, heating methods, refrigeration components, etc., to achieve the effect of reducing the misjudgment rate

Active Publication Date: 2015-01-28
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to solve the technical problem of accurately detecting the leakage of air conditioner refrigerant without increasing the hardware cost

Method used

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  • Air conditioner and coolant leakage warning method for air conditioner
  • Air conditioner and coolant leakage warning method for air conditioner
  • Air conditioner and coolant leakage warning method for air conditioner

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Embodiment Construction

[0042] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0043] The invention provides a method for alerting of refrigerant leakage of an air conditioner.

[0044] refer to figure 1 , figure 1 It is a schematic flowchart of an embodiment of a method for alerting refrigerant leakage of an air conditioner according to the present invention.

[0045] In one embodiment, the air conditioner refrigerant leakage reminder method includes the following steps:

[0046] Step S11, detecting the indoor temperature and the temperature of the indoor heat exchanger coil;

[0047] In this embodiment, the indoor temperature TP1 is detected by the first temperature sensor unit, and the indoor heat exchanger coil temperature TP2 is detected by the second temperature sensor unit.

[0048] Step S12, calculating and obtaining the temperature difference between the indoor temperature and the i...

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Abstract

The invention discloses an air conditioner and a coolant leakage warning method for the air conditioner. The method includes: detecting indoor temperature and indoor heat exchange pipe coil temperature; calculating temperature difference between the indoor temperature and the indoor heat exchange pipe coil temperature; acquiring operating parameters of a compressor when the temperature difference between the indoor temperature and the indoor heat exchange pipe coil temperature is smaller than a preset temperature threshold; calculating power of the compressor according to voltage and current of the compressor; comparing the calculated power of the compressor with a preset nominal power of the compressor at the same rotation speed to judge whether coolant of the air conditioner is leaked or not; giving out warning information if the coolant of the air conditioner is leaked. By combination of temperature difference judgment and compressor power difference judgment, coolant leakage conditions of the air conditioner can be detected accurately, and misjudgment rate is decreased. In addition, power of the compressor is calculated by means of software algorithms according to existing signal data of the compressor, so that hardware cost is reduced on the premise that accuracy is guaranteed.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to an air conditioner and a refrigerant leakage reminder method thereof. Background technique [0002] The air conditioner has been widely used due to its cooling / heating function. During the use of the air conditioner, refrigerant leakage may occur, thereby affecting the cooling / heating effect of the air conditioner. [0003] Most of the commonly used air conditioners do not have refrigerant leakage detection and alarm display functions. Therefore, when refrigerant leakage affects the cooling / heating effect, users cannot judge the fault. A small number of air conditioners have the function of refrigerant leakage detection. By combining the detection of the difference between the temperature of the indoor heat exchanger and the difference between the actual power and the theoretical value of the compressor, this detection method has high accuracy, but it needs to increase the power d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00F24F11/02
CPCF24F11/36F24F11/83F25B2500/222
Inventor 郑伟霍军亚
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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