Air conditioner malfunction detection method and system

An air conditioner and fault technology, which is applied in the air conditioner fault detection method and system field, can solve problems such as compressor burnout, four-way valve 12 not reversing, affecting the cooling and heating effect of the air conditioner, and achieve the effect of accurate detection

Inactive Publication Date: 2008-05-14
HAIER GRP CORP +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

When the refrigerant only partially leaks and the air conditioner continues to operate, the low pressure switch 16 is difficult to detect
In this way, the refrigerant will continue to leak, which will affect the cooling and heating effects of the air conditioner. Once the discharge temperature protection fails or there is no discharge temp...

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  • Air conditioner malfunction detection method and system
  • Air conditioner malfunction detection method and system
  • Air conditioner malfunction detection method and system

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Embodiment Construction

[0025] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] The core idea of ​​the present invention is to install a temperature sensor at the exhaust port of the compressor and the air port of the condenser after the four-way valve, and detect whether the refrigerant of the air conditioner is leakage. In the cooling mode, if the air conditioner refrigerant leaks, the refrigerant in the gas compressed by the compressor is insufficient, and the temperature of the compressed gas is too high, so that the temperature difference between the compressor exhaust port and the condenser gas port after the four-way valve is larger than normal. , when the temperature difference exceeds the set value, it is confirmed that the air conditioner has faults such as insufficient refrigerant.

[0027]...

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Abstract

The invention discloses a fault detection method for an air conditioner, comprising: when the air conditioner is in a cooling state, obtaining the discharge temperature of the compressor and the temperature of the air port of the condenser after the four-way valve; If the air port temperature difference is higher than the preset value, it is determined that the air conditioner is faulty. The invention also discloses a fault detection system for an air conditioner, which includes a compressor, a four-way valve, a condenser, a throttling device and an evaporator, and also includes: a temperature sensor at the air port of the condenser, which is arranged between the four-way valve and the condenser on the pipeline between the compressors; the compressor discharge temperature sensor is arranged on the pipeline between the four-way valve and the compressor. The invention can accurately detect various faults in the working process of the air conditioner, so as to ensure the normal operation of the air conditioner.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to an air conditioner fault detection method and system. Background technique [0002] The air conditioner is one of our most commonly used home appliances. The air conditioner uses the compressor to compress the refrigerant, and the refrigerant absorbs and releases heat to realize the cooling and heating functions. This requires the refrigerant to circulate repeatedly in the air conditioner in various states. It is easier to cause leakage. The leakage of refrigerant in the air conditioner will not only affect the cooling and heating effects, but also increase the workload of the air conditioner, increase the exhaust temperature of the compressor in the air conditioner, and even burn the compressor. Therefore, it is necessary to accurately detect failures such as refrigerant leakage of the air conditioner. [0003] The existing air conditioner refrigerant leakage fault detection me...

Claims

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Application Information

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IPC IPC(8): F24F11/00
Inventor 张晓兰国德防崔国宝赵振立
Owner HAIER GRP CORP
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