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Air conditioner outdoor unit fan motor power online testing method and system

A technology of air conditioner external unit and motor power, which is applied in the direction of motor generator testing, electric power measurement, electric vehicles, etc. It can solve the problems of inability to judge whether the motor is good or not, and the power of fan motor cannot be tested, and achieves fast test speed and high test efficiency. , easy to achieve effect

Active Publication Date: 2019-05-10
AUX AIR CONDITIONING LTD BY SHARE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention aims to propose an online test method for the power of the fan motor of the outdoor unit of the air conditioner, so as to solve the technical problem that the power of the fan motor cannot be tested and the quality of the motor cannot be judged in the existing online test method for the performance of the outdoor unit.

Method used

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  • Air conditioner outdoor unit fan motor power online testing method and system
  • Air conditioner outdoor unit fan motor power online testing method and system
  • Air conditioner outdoor unit fan motor power online testing method and system

Examples

Experimental program
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Embodiment 1

[0040] combine figure 1 , image 3 with Figure 4 , the technical solution adopted in this embodiment is to provide an online test method for the fan motor power of an air conditioner external unit, which includes the following steps:

[0041] Step 1: Connect the external unit of the air conditioner to the standard internal unit of the air conditioner through pipelines and energize them. The pipelines include the first pipeline and the second pipeline. The low-pressure cut-off valve 2 of the external machine is connected with the second pipeline;

[0042] Step 2, controlling the outdoor unit of the air conditioner to operate in the heating mode first, and then in the cooling mode, and the compressor 4 and the fan 5 of the outdoor unit of the air conditioner work at the same time;

[0043] Step 3, close the high-pressure cut-off valve 1, detect the return air pressure P, and judge whether the return air pressure P is less than the pressure preset value P 0 , if yes, go to s...

Embodiment 2

[0049] The difference between this embodiment and Embodiment 1 is that the technical solution adopted in this embodiment is to provide an online test method for the fan motor power of an air conditioner external unit, which includes the following steps:

[0050] Step 1: Connect the external unit of the air conditioner to the control cabinet and power on the pipeline. The pipeline includes the first pipeline and the second pipeline. The high-pressure cut-off valve 1 of the external unit of the air conditioner is connected to the first pipeline. The low-pressure cut-off valve 2 is connected with the second pipeline;

[0051] Step 2, controlling the outdoor unit of the air conditioner to operate in the heating mode first, and then in the cooling mode, and the compressor 4 and the fan 5 of the outdoor unit of the air conditioner work at the same time;

[0052]Step 3, close the high-pressure cut-off valve 1, detect the return air pressure P, and judge whether the return air pressur...

Embodiment 3

[0057] combine Figure 2-Figure 4 , on the basis of Embodiment 1 or Embodiment 2, in the online test method for the fan motor power of an air conditioner external unit provided by this embodiment, step 5 also includes judging the motor power value W and the standard motor power W 0 Whether the ratio R of the ratio R belongs to the preset range to judge whether the fan motor is normal, wherein the preset range is 0.92≤R≤1.08, and the specific steps include:

[0058] Step 51, judge whether R satisfies R≥0.92, if so, go to step 52; if not, judge that the fan motor is abnormal, and give an audible and visual warning, that is, the buzzer alarms and the indicator light turns red;

[0059] Step 52, the module judges whether R satisfies R≤1.08. If yes, the judgment is normal, the indicator light is green, the test is completed, and the power is turned off; .

[0060] The online testing method for the power of the fan motor of the outdoor unit of the air conditioner provided in this ...

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Abstract

The invention provides an air conditioner outdoor unit fan motor power online testing method and system and belongs to the technical field of air conditioner testing. The method comprises the steps ofcarrying out connection on an air conditioner outdoor unit and a standard air conditioner indoor unit or a control cabinet through utilization of a pipeline; controlling the air conditioner outdoor unit to operate in a heating mode and then operate in a refrigeration mode, wherein a compressor and a fan of the air conditioner outdoor unit work at the same time; closing a high pressure stop valveof the air conditioner outdoor unit, detecting return air pressure P, judging whether the return air pressure P is smaller than a pressure preset value P<0> or not, closing a low pressure stop valve of the air conditioner outdoor unit, and controlling the compressor to be powered off; and controlling the fan to operate at 30-60S, and detecting a motor power valve W of the fan. According to the airconditioner outdoor unit fan motor power online testing method and system provided by the invention, outdoor unit motor online full inspection is realized, and a motor abnormity can be discovered. The method and the system are low in cost, are easy to realize, and are simple in principle and wide in application range.

Description

technical field [0001] The invention relates to the technical field of air conditioner testing, in particular to an online test method and system for the power of an air conditioner external fan motor. Background technique [0002] The split room air conditioner generally includes an indoor unit and an outdoor unit. In the prior art, the method of testing the outdoor unit of the air conditioner is usually to connect the outdoor unit to be tested with a standard indoor unit or control cabinet dedicated for testing, and the technicians operate the test. The remote controller manually controls the outdoor unit according to the preset main control logic, starting from start-up, heating first, then cooling, and judging whether the outdoor unit under test is running normally. , because this test method is greatly affected by human factors, the false positive rate is high, and the accuracy is low. However, in the existing outdoor unit performance commercial inspection online test m...

Claims

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Application Information

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IPC IPC(8): G01R21/00G01R31/34
Inventor 陈建中方健陈观水周杨黄良友刘明洋
Owner AUX AIR CONDITIONING LTD BY SHARE LTD
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