Device and method for testing noise of external machine

A test method and noise technology, applied in the field of external machine noise test devices, can solve the problems of large deviation between test results and actual conditions, inability to test power harmonics, etc., to avoid errors in test results, eliminate influences, and ensure consistent results

Active Publication Date: 2022-01-25
AUX AIR CONDITIONING LTD BY SHARE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention aims to propose an external machine noise testing device and method to solve the problem that in the prior art, the influencing factor of power supply harmonics cannot be tested more accurately, so that the test results deviate greatly from the actual situation. question

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  • Device and method for testing noise of external machine
  • Device and method for testing noise of external machine
  • Device and method for testing noise of external machine

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Embodiment Construction

[0030] The disclosed inventive concepts are described below using terms commonly used by those skilled in the art to convey the substance of their work to others skilled in the art. These inventive concepts may, however, be embodied in many different forms and should not be construed as limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of their inclusion to those skilled in the art. It should also be noted that these embodiments are not mutually exclusive. A component, step or element from one embodiment may be assumed to be present or used in another embodiment. The specific embodiments shown and described may be replaced by a wide variety of alternative and / or equivalent implementations without departing from the scope of the disclosed embodiments. This application is intended to cover any adaptations or variations of the embodiments discussed herein. It will b...

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Abstract

The invention provides a noise testing device and method for an external unit, the device includes a detection room, a data processing device, a data acquisition device, and a power supply device; Connection; the testing room includes a wall, a ceiling, and a partition wall. The wall is matched with the ceiling, and the partition wall is respectively matched with the wall and the ceiling. On the indoor side, the outdoor unit of the air conditioner is connected to the indoor unit, the data acquisition device is installed on the outdoor side, and the data processing device is connected to the data acquisition device. The power supply device includes a frequency conversion power supply and a harmonic generator. The wave generator is connected with the internal machine. The device and method for testing the noise of an external machine according to the present invention eliminates the influence of the harmonics of the power supply on the noise test of the external machine to the greatest extent, and is beneficial to improving the accuracy of noise detection of the external machine.

Description

technical field [0001] The invention relates to the technical field of air conditioners, and in particular, to a device and method for testing noise of an outdoor unit. Background technique [0002] With the popularization of air conditioners, the problem of air-conditioning noise disturbing people has become a hot and difficult point in the research of various enterprises. The loud noise of the outdoor machine not only affects the customer itself, but also affects the sleep and rest of the customer's neighbors, and brings discordant factors to the neighbor relationship. However, in the process of handling after-sale noise complaints, the applicant often found that when the customer brought the machine with loud external noise back to the factory for re-test, the re-test result was often qualified. After research, it was found out that the reason for the high noise of the customer's external unit is that the power harmonic content of the user's power supply far exceeds the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01H17/00G01M99/00
CPCG01H17/00G01M99/005
Inventor 兰江华
Owner AUX AIR CONDITIONING LTD BY SHARE LTD
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