Air conditioner diagnosis method, diagnosis device, air conditioner and computer readable storage medium

A diagnostic method and air conditioner technology are applied in the fields of air conditioners and computer-readable storage media, air conditioner diagnostic methods, and diagnostic devices, and can solve problems such as inability to determine specific causes and long development cycles.

Active Publication Date: 2021-08-10
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention aims to propose an air conditioner diagnosis method, a diagnosis device, an air conditioner and a computer-readable storage medium, so as to solve the problem that the specific cause cannot be determined when resonance noise is generated between the motor and the support in the prior art, which leads to the development of long cycle problem

Method used

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  • Air conditioner diagnosis method, diagnosis device, air conditioner and computer readable storage medium
  • Air conditioner diagnosis method, diagnosis device, air conditioner and computer readable storage medium

Examples

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Embodiment 1

[0043] Such as figure 1 As shown, this embodiment provides an air conditioner diagnosis method, quantitatively identifying whether the vibration noise is caused by the bracket or the motor, and taking corresponding measures to rectify the motor bracket or the motor in a targeted manner, while improving the matching degree and reducing the vibration noise generation.

[0044] Specifically, the air conditioner diagnosis method of this embodiment includes the following steps:

[0045] Step S1, obtain the noise spectrum of the outdoor unit system, extract the frequency corresponding to each peak to form a set A (A1, A2...An), and at the same time use the modal simulation software to simulate the outdoor unit system to obtain the natural frequency set B (B1, B2...Bn );

[0046] The outdoor unit system provided in this embodiment includes a motor, a motor support and a fan. For a newly developed outdoor unit, the motor is fixed by the motor bracket. At the same time, the motor dr...

Embodiment 2

[0055] Such as figure 2 As shown, on the basis of Embodiment 1, this embodiment makes a more specific analysis on the cause of noise generation, specifically including the following steps:

[0056] Step S101, using noise testing software to perform a noise test on the outdoor unit system;

[0057] The outdoor unit system includes a motor, a motor bracket and a fan. A signal acquisition device is installed near the fan. The signal acquisition device is used to collect the noise generated by the outdoor unit system. The noise test software tests and analyzes the noise data collected by the signal acquisition device.

[0058] Preferably, the noise test software adopts B&K noise test software, the signal acquisition device is set as a signal acquisition microphone, and the distance between the signal acquisition microphone and the front side of the fan is about 1m, so as to ensure that the noise generated by the fan, motor and motor support can be accurately tested.

[0059] Ste...

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Abstract

The invention provides an air conditioner diagnosis method, a diagnosis device, an air conditioner and a computer-readable storage medium, comprising the following steps: when the noise value of the outdoor unit system is greater than a set threshold F, the noise spectrum of the outdoor unit system is obtained, and each peak value is extracted The corresponding frequencies form a set A (A1, A2...An), and at the same time use the modal simulation software to simulate the outdoor unit system to obtain the natural frequency set B (B1, B2...Bn); according to the data in the set B and the data in the set A In an approximate situation, determine the reason why the noise value is greater than the set threshold F; the outdoor unit system includes a motor, a motor support and a fan. The air conditioner diagnosis method provided by the present invention uses modal simulation software to test the natural frequency of the outdoor unit system, and can quantitatively identify the reasons for the unreasonable matching of the motor and the motor bracket, and take corresponding measures to rectify the motor bracket or The motor avoids blind changes, while improving the matching degree and reducing the generation of vibration and noise.

Description

technical field [0001] The present invention relates to the field of air conditioners, in particular to an air conditioner diagnosis method, a diagnosis device, an air conditioner and a computer-readable storage medium. Background technique [0002] With the continuous improvement of people's living standards, people's pursuit of material beauty is getting higher and higher, and air conditioners have become a necessity in life. The noise level of air conditioners has always been the focus of people's attention. The noise of outdoor units of air conditioners mainly includes aerodynamic noise and vibration noise, of which vibration noise occupies a greater weight. Vibration noise is driven by the motor as the excitation source, and the vibration is transmitted to the shell of the outdoor unit through matching connection with the motor bracket. Under different working modes of the air conditioner, the motor in the outdoor unit will drive the fan to rotate at different speeds. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/38F24F11/64F24F11/72F24F11/88F24F13/24F24F130/40
CPCF24F13/24F24F2013/247F24F11/38F24F11/64F24F11/72F24F11/88F24F2130/40
Inventor 王培鲁旻张伟捷
Owner NINGBO AUX ELECTRIC
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