Method and device for protecting indoor unit of air conditioner

A technology for indoor units and protection devices of air conditioners, which is applied in the direction of mechanical equipment, etc., and can solve the problems that the air conditioner cannot be effectively detected, cannot complete the normal circulation of the refrigerant, and the air conditioner compressor is burned and damaged.

Inactive Publication Date: 2019-03-29
AUX AIR CONDITIONING LTD BY SHARE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the air conditioner valve is not opened, it will not only fail to complete the normal circulation of the refrigerant, but also easily cause the compressor of the air conditioner to be burned and damaged.
[0007] However, there is a lack of a method and system for detecting and protecting the above problems in the prior art
Therefore, when the above-mentioned installation errors occur, the air conditioner cannot perform effective detection and enter the corresponding protection mechanism

Method used

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  • Method and device for protecting indoor unit of air conditioner
  • Method and device for protecting indoor unit of air conditioner
  • Method and device for protecting indoor unit of air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] as attached image 3 As shown, when the air conditioner starts the heating mode, first record the initial temperature T of the evaporator of the indoor unit when the air conditioner starts to run Z0 , when the continuous running time of the air conditioner reaches the test time t C After that, measure the real-time temperature T of the indoor unit evaporator Z1 and indoor ambient real-time temperature T N1 . Judge T Z1 -T N1 Whether the value of is less than or equal to 2, when T Z1 -T N1 value is less than or equal to 2, judge T again Z1 -T Z0 Whether the value of is less than or equal to 2. If the results of the two judgments are "yes", the shutdown protection will be carried out. If any one of the two judgment results is "No", the air conditioner is normally operated.

Embodiment 2

[0057] as attached image 3 As shown, when the air conditioner starts cooling mode, first record the initial temperature T of the evaporator of the indoor unit when the air conditioner starts to run Z0 , when the continuous running time of the air conditioner reaches the test time t C After that, measure the real-time temperature T of the indoor unit evaporator Z1 and indoor ambient real-time temperature T N1 . Judge T N1 -T Z1 Whether the value of is less than or equal to 2, when T N1 -T Z1 value is less than or equal to 2, judge T again Z0 -T Z1 Whether the value of is less than or equal to 2. If the results of the two judgments are "yes", the shutdown protection will be carried out. If any one of the two judgment results is "No", the air conditioner is normally operated.

[0058] as attached Figure 4 As shown, the present invention also includes a protection device for an air conditioner indoor unit, which is characterized in that it includes:

[0059] The fir...

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Abstract

The invention relates to a method and device for protecting an indoor unit of an air conditioner. The method for protecting the indoor unit of the air conditioner comprises the steps that an initial temperature TZ0 of an indoor unit evaporator when the air conditioner starts running, and a real-time temperature TZ1 of the indoor unit evaporator and a real-time temperature of the indoor environmentTN1 after the continuous running of the air conditioner reaching a test time tC are correspondingly tested; according to the difference in values of TZ0, TZ1, and TN1, whether the air conditioner isabnormal or not is judged; and the air conditioner is stopped when it is judged that the air conditioner is abnormal. According to the method and device for protecting the indoor unit of the air conditioner, the risk of air conditioner damage caused by the installation error of an air conditioner valve can be effectively detected and prevented, so that the problems of the abnormal circulation of arefrigerant and the damages of the air conditioner caused by the air conditioner running in the state that the valve is not opened are avoided.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method and device for protecting an indoor unit of an air conditioner. Background technique [0002] With the development of science and technology and the improvement of people's living standards, air conditioners with temperature regulation and air supply and ventilation functions have been used more and more widely in many occasions. [0003] The air conditioner uses the basic principle that when the substance is liquefied (from gas to liquid), it needs to discharge heat and when the substance is vaporized (from liquid to gas), it needs to absorb heat. [0004] When the refrigeration function is started, the high-temperature and high-pressure gas discharged from the compressor enters the condenser, absorbs heat in the outdoor condenser and becomes a high-pressure and normal-temperature liquid, and then enters the throttle valve to become a low-pressure and low-tempe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/30F24F11/52F24F11/64
Inventor 颜景旭应必业袁双全
Owner AUX AIR CONDITIONING LTD BY SHARE LTD
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