Vibration testing method of air conditioner

A technology of vibration testing and air conditioning, which is applied in the direction of measuring devices, measuring ultrasonic/sonic/infrasonic waves, instruments, etc.

Inactive Publication Date: 2016-06-29
CHANGSHA GREE HVAC EQUIP CO LTD
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  • Description
  • Claims
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Problems solved by technology

[0003] An embodiment of the present invention provides a vibration test method for an air conditioner to solve the problem that in the prior art there is no effective connection method for the vibration sensor for the indoor unit and outdoor unit of the air conditioner to ensure the accuracy of the test results

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  • Vibration testing method of air conditioner
  • Vibration testing method of air conditioner
  • Vibration testing method of air conditioner

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Embodiment Construction

[0019] The present invention will be further described in detail below with reference to the drawings and specific embodiments, but it is not intended to limit the present invention.

[0020] The upper limit frequency of the piezoelectric crystal accelerometer (a kind of vibration sensor) depends on the amplitude-frequency characteristic curve (such as figure 1 Shown) in the resonance frequency. Generally, for accelerometers with small damping (ξ≤0.1), if the upper limit frequency is set to 1 / 3 of the resonance frequency, the amplitude error can be guaranteed to be less than 1dB (ie 12%); if the resonance frequency is 1 / 5, it can be Ensure that the amplitude error is less than 0.5dB (ie 6%). The resonance frequency is related to the connection mode of the accelerometer and the measured object. The amplitude-frequency characteristic curve given by the accelerometer when it leaves the factory is obtained under the condition of rigid connection. The actual fixing method is often di...

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Abstract

The invention provides a vibration testing method of an air conditioner. The method comprises the steps of: judging whether the object of vibration testing is an outdoor unit or an indoor unit; under the condition that the object of vibration testing is the outdoor unit, fixedly connecting a vibration sensor to a panel of the outdoor unit; under the condition that the object of vibration testing is the indoor unit, abutting the vibration sensor against the indoor unit; and collecting data through the vibration sensor. The vibration testing method of the air conditioner is used for the outdoor unit and the indoor unit of the air conditioner, the effective connection modes of the vibration sensor are provided, and the accurate testing result is ensured.

Description

Technical field [0001] The invention relates to the technical field of testing, and in particular to a vibration testing method for air conditioners. Background technique [0002] In the prior art, with the continuous development of air-conditioning's own silent technology, the requirements for product noise quality are getting higher and higher. The root cause of noise is mostly caused by vibration. Therefore, the air conditioner needs to be subjected to vibration testing during the production process. In the vibration test of the air conditioner, the difference in the connection between the vibration sensor (such as piezoelectric crystal accelerometer) and the measured object has different degrees of influence on the test result. Under the condition of ensuring the test result, the prior art does not There is no effective connection method for vibration sensors for vibration testing for indoor and outdoor air conditioners. Summary of the invention [0003] An embodiment of the ...

Claims

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Application Information

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IPC IPC(8): G01H11/08
CPCG01H11/08
Inventor 李鸿蔚徐强李致亮王晓彬周艳彬方掩
Owner CHANGSHA GREE HVAC EQUIP CO LTD
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