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An online test method for the power of the fan motor of an outdoor unit of an air conditioner

A technology of air-conditioning external unit and motor power, which is applied in the direction of motor generator testing, measuring electric power, and electrical devices, etc. It can solve the problems of not being able to judge whether the motor is good or bad, and not being able to test the power of the fan motor, etc., to achieve fast testing speed and testing efficiency The effect of high and low misjudgment rate

Active Publication Date: 2022-07-01
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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  • An online test method for the power of the fan motor of an outdoor unit of an air conditioner
  • An online test method for the power of the fan motor of an outdoor unit of an air conditioner
  • An online test method for the power of the fan motor of an outdoor unit of an air conditioner

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Embodiment 1

[0040] combine figure 1 , image 3 and Figure 4 , the technical solution adopted in this embodiment is to provide an on-line test method for the power of an air conditioner external fan motor, comprising the following steps:

[0041] Step 1: Connect and electrify the air conditioner external unit and the standard air conditioner internal unit through pipelines. The pipeline includes a first pipeline and a second pipeline. The high-pressure cut-off valve 1 of the air conditioner external unit is connected to the first pipeline, and the The low-pressure cut-off valve 2 of the external unit is connected with the second pipeline;

[0042] Step 2, control 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 simultaneously;

[0043] Step 3, close the high pressure shut-off valve 1, detect the return air pressure P, and determine whether the re...

Embodiment 2

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

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

[0051] Step 2, control 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 simultaneously;

[0052]Step 3, close the high pressure shut-off valve 1, detect the return air pressure P, and determine whether the return air pressure P is le...

Embodiment 3

[0057] combine Figure 2-Figure 4 , on the basis of Embodiment 1 or Embodiment 2, in the on-line test method for the motor power of an outdoor fan of an air conditioner provided by the present embodiment, step 5 also includes judging the motor power value W and the standard motor power W 0 Whether the ratio R of the fan falls within a preset range to determine whether the fan motor is normal, where 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 yes, go to step 52; if not, judge that the fan motor is abnormal, and give sound and light warning, that is, the buzzer gives an alarm, and the indicator light turns red;

[0059] Step 52, the module judges whether R satisfies R≤1.08, if so, it is judged to be normal, the indicator light turns green, the test is completed, and the power is turned off; .

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

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Abstract

The invention provides an on-line testing method and system for the fan motor power of an air conditioner external unit, belonging to the technical field of air conditioner testing. First run in heating mode, then run in cooling mode, the compressor and fan of the air conditioner outdoor unit work at the same time; close the high-pressure shut-off valve of the air conditioner outdoor unit, detect the return air pressure P, and determine whether the return air pressure P is less than Pressure preset value P 0 , close the low-pressure cut-off valve of the air conditioner external unit, control the power off of the compressor; control the fan to continue to run for 30-60S, and detect the motor power value W of the fan. The on-line testing method and system for the motor power of the outdoor unit fan of the air conditioner of the present invention realizes full on-line testing of the motor of the outdoor unit, can detect abnormality of the motor, is low in cost, easy to implement, simple in principle and wide in application range.

Description

technical field [0001] The invention relates to the technical field of air-conditioning testing, in particular to an on-line testing method and system for the power of an air-conditioning external fan motor. Background technique [0002] A split room air conditioner generally includes an indoor unit and an outdoor unit. In the prior art, the method for testing the outdoor unit of the air conditioner is usually to connect the tested outdoor unit with a standard indoor unit or control cabinet dedicated to testing, and operate it by a technician. The remote controller manually controls the outdoor unit according to the preset main control logic, starting from startup, heating first, then cooling, to judge whether the outdoor unit under test is running normally. This test method is labor-intensive, long test time, low test efficiency, and at the same time , Because the test method is greatly affected by human factors, the false positive rate is high, and the accuracy is low, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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