CN105716706A - Vibration testing method of air conditioner - Google Patents
Vibration testing method of air conditioner Download PDFInfo
- Publication number
- CN105716706A CN105716706A CN201610071669.9A CN201610071669A CN105716706A CN 105716706 A CN105716706 A CN 105716706A CN 201610071669 A CN201610071669 A CN 201610071669A CN 105716706 A CN105716706 A CN 105716706A
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- CN
- China
- Prior art keywords
- testing
- vibration
- vibrating sensor
- premises station
- indoor set
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000004378 air conditioning Methods 0.000 claims description 10
- 239000000523 sample Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
- G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
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
The present invention relates to technical field of measurement and test, in particular to the method for testing vibration of a kind of air-conditioning.
Background technology
In prior art, development along with air-conditioning self quietness technology, the requirement of product noise quality is more and more higher, the basic reason that noise produces is mostly owing to vibration causes, so air-conditioning needs to carry out vibration-testing in process of producing product, in the vibration-testing of air-conditioning, vibrating sensor (such as piezoquartz accelerometer) and connected mode different between measurand, test result is had impact in various degree, when ensureing test result, not for indoor apparatus of air conditioner and off-premises station in prior art, the effective connected mode of vibrating sensor is provided to carry out vibration-testing.
Summary of the invention
The embodiment of the present invention provides the method for testing vibration of a kind of air-conditioning, to solve in prior art not for indoor apparatus of air conditioner and off-premises station, it is provided that the effective connected mode of vibrating sensor is accurate to ensure test result.
For solving above-mentioned technical problem, the invention provides the method for testing vibration of a kind of air-conditioning, including: the object judging vibration-testing is off-premises station or indoor set；When the object of vibration-testing is off-premises station, vibrating sensor is fixedly connected on the panel of off-premises station；When the object of vibration-testing is indoor set, vibrating sensor is supported on indoor set；Data are gathered by vibrating sensor.
Further, when the object of vibration-testing is off-premises station, by magnetic support, vibrating sensor is adsorbed on the panel of off-premises station.
Further, when the object of vibration-testing is off-premises station, vibrating sensor is bolted on the panel of off-premises station.
Further, when the object of vibration-testing is indoor set, vibrating sensor is connected on indoor set by probe mode.
Further, vibrating sensor is handy vibrometer.
Further, vibrating sensor is piezoquartz accelerometer.
Application technical scheme, when off-premises station vibration-testing, owing to off-premises station is metal shell, metal shell can be connected up to above-mentioned being rigidly connected by Magnet or bolt, to meet the testing requirement of off-premises station, complete vibration-testing thereby through vibrating sensor (such as piezoquartz accelerometer).Owing to the shell of indoor apparatus of air conditioner is nonmetallic moulding, rigidly connected mode can destroy the shell of indoor set, it is additionally contemplates that the impact of aesthetic considerations simultaneously, therefore vibrating sensor is supported on the shell of indoor set to be attached (as probe-type connects), so reach relative rigidly connected purpose, test frequency is typically within the frequency range of 1KHz, it is possible to meet the vibration-testing demand of indoor set.To sum up, by the connected mode that off-premises station is different with indoor set offer vibrating sensor, to ensure that test result is accurate, also the structure of indoor set is not damaged simultaneously, do not interfere with the attractive in appearance of indoor set shell.
Accompanying drawing explanation
Fig. 1 is piezoquartz accelerometer amplitude-versus-frequency curve figure.
Fig. 2 is the schematic flow sheet of the method for testing vibration of the air-conditioning of embodiments of the invention.
Fig. 3 is the structural representation that piezoquartz accelerometer is connected with magnetic support.
Fig. 4 is the amplitude-versus-frequency curve figure that piezoquartz accelerometer is connected by magnetic support.
Fig. 5 is the structural representation that piezoquartz accelerometer is bolted.
Fig. 6 is the amplitude-versus-frequency curve figure that piezoquartz accelerometer is bolted.
Fig. 7 is the structural representation that piezoquartz accelerometer is connected by probe mode.
Fig. 8 is the amplitude-versus-frequency curve figure that piezoquartz accelerometer is connected by probe mode.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
The SC service ceiling frequency of piezoquartz accelerometer (one of vibrating sensor) depends on the resonant frequency in amplitude-versus-frequency curve (as shown in Figure 1).The accelerometer of general little damping (ξ≤0.1), if upper limiting frequency is taken as the 1/3 of resonant frequency, just can ensure that amplitude error is lower than 1dB (namely 12%)；If taking the 1/5 of resonant frequency, then can ensure that amplitude error is lower than 0.5dB (namely 6%).Resonant frequency is relevant with the connected mode of accelerometer and measurand, and the amplitude-versus-frequency curve provided when accelerometer dispatches from the factory obtains in rigidly connected situation.Actually used fixing means is often difficult to reach absolute being rigidly connected, and is therefore only able to find relatively moderate connected mode.
Shown in Figure 2, according to embodiments of the invention, it is provided that the method for testing vibration of a kind of air-conditioning, including:
Step S10: the object judging vibration-testing is off-premises station or indoor set.
When the object of vibration-testing is off-premises station, perform step S21: be fixedly connected on by vibrating sensor on the panel of described off-premises station.
When the object of vibration-testing is indoor set, perform step S22: supported on described indoor set by vibrating sensor.
Step S30: gather data by described vibrating sensor.
When off-premises station vibration-testing, owing to off-premises station is metal shell, metal shell can be connected up to above-mentioned being rigidly connected by Magnet or bolt, to meet the testing requirement of off-premises station, completes vibration-testing thereby through vibrating sensor (such as piezoquartz accelerometer).Owing to the shell of indoor apparatus of air conditioner is nonmetallic moulding, rigidly connected mode can destroy the shell of indoor set, it is additionally contemplates that the impact of aesthetic considerations simultaneously, therefore vibrating sensor is supported on the shell of indoor set to be attached (as probe-type connects), so reach relative rigidly connected purpose, test frequency is typically within the frequency range of 1KHz, it is possible to meet the vibration-testing demand of indoor set.To sum up, by the connected mode that off-premises station is different with indoor set offer vibrating sensor, to ensure that test result is accurate, also the structure of indoor set is not damaged simultaneously, do not interfere with the attractive in appearance of indoor set shell.
It is further preferred that when the object of vibration-testing is off-premises station, be adsorbed on the panel of described off-premises station by magnetic support 20 by vibrating sensor 10, in the present embodiment, vibrating sensor 10 is piezoquartz accelerometer.In off-premises station vibration-testing, owing to off-premises station is metal shell, can adopt on vibrating sensor 10, install magnetic support 20 additional, it is adsorbed on outer pusher side panel, connected mode is as shown in Figure 3, which installation and removal facility, it is simple to tester operates, verifies that the frequency characteristic that draws is as shown in Figure 4 by experiment.Fixing resonance frequency is several kilo hertzs, the situation that this method degree of being suited to speed up is less, measuring acceleration amplitude more than 200g (g is acceleration of gravity), can not meet the testing requirement of off-premises station.Carry out, according to the data gathered, the data analysis be correlated with after successful connection and Algorithm Analysis carries out the judgement of result.
In other examples, when the object of vibration-testing is off-premises station, vibrating sensor 10 is connected on the panel of described off-premises station by bolt 30.The mode that off-premises station vibration-testing is with bolts with the connected mode of sensor, as shown in Figure 5.With steel bolt, piezoquartz accelerometer is connected on off-premises station, such piezoquartz accelerometer can obtain good frequency characteristic, and as shown in Figure 6, fixing resonance frequency is up to tens kilo hertzs, measure with impact shock suitable in high frequency, meet the testing requirement of off-premises station equally.
Preferably, when the object of vibration-testing is indoor set, vibrating sensor 10 is connected on described indoor set by probe mode.Owing to the shell of indoor apparatus of air conditioner is nonmetallic moulding, the mode relying on magnetic support absorption can not be implemented, simultaneously take account of the impact of aesthetic considerations, cannot make to be connected with, therefore indoor apparatus of air conditioner adopts probe-type connected mode with the connected mode of sensor, as it is shown in fig. 7, increase probe 40 on the head of vibrating sensor 10, relying on probe 40 to withstand on and reach relative rigidly connected purpose on the panel of indoor set, the empirical curve drawn is as shown in Figure 8.This method is applicable to quickly test, as being used in the occasion that measuring point is a lot of and don't to fix.Test frequency is typically within the frequency range of 1KHz, it is sufficient to meet the testing requirement of indoor set.Carry out, according to the data gathered, the data analysis be correlated with after successful connection and Algorithm Analysis carries out the judgement of result.
It is contemplated that the vibrating sensor can supported on indoor set just can complete test, therefore, in other examples, it is also possible to described vibrating sensor is chosen as handy vibrometer.
Certainly, it is above the preferred embodiment of the present invention.It should be pointed out that, for those skilled in the art, under the premise without departing from its general principles, it is also possible to make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (6)
1. the method for testing vibration of an air-conditioning, it is characterised in that including:
The object judging vibration-testing is off-premises station or indoor set；
When the object of vibration-testing is off-premises station, vibrating sensor is fixedly connected on the panel of described off-premises station；When the object of vibration-testing is indoor set, vibrating sensor is supported on described indoor set；
Data are gathered by described vibrating sensor.
2. method for testing vibration according to claim 1, it is characterised in that when the object of vibration-testing is off-premises station, by magnetic support, vibrating sensor is adsorbed on the panel of described off-premises station.
3. method for testing vibration according to claim 1, it is characterised in that when the object of vibration-testing is off-premises station, is bolted vibrating sensor on the panel of described off-premises station.
4. method for testing vibration according to claim 1, it is characterised in that when the object of vibration-testing is indoor set, vibrating sensor is connected on described indoor set by probe mode.
5. method for testing vibration according to claim 4, it is characterised in that described vibrating sensor is handy vibrometer.
6. method for testing vibration according to claim 1, it is characterised in that described vibrating sensor is piezoquartz accelerometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071669.9A CN105716706A (en) | 2016-02-01 | 2016-02-01 | Vibration testing method of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071669.9A CN105716706A (en) | 2016-02-01 | 2016-02-01 | Vibration testing method of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105716706A true CN105716706A (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610071669.9A Pending CN105716706A (en) | 2016-02-01 | 2016-02-01 | Vibration testing method of air conditioner |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032068A (en) * | 1987-09-14 | 1989-03-29 | Tlv有限公司 | Steam trap operation detector |
| US5663504A (en) * | 1993-09-16 | 1997-09-02 | Kluft; Werner | Sensor system |
| CN201561978U (en) * | 2009-12-16 | 2010-08-25 | 西安热工研究院有限公司 | Multipurpose fixing and connecting device for vibration acceleration sensor |
| CN201803789U (en) * | 2010-09-17 | 2011-04-20 | 济南轨道交通装备有限责任公司 | Portable fixing device of vibrating sensor |
| JP2013032929A (en) * | 2011-08-01 | 2013-02-14 | Nec Tokin Corp | Vibration detection method |
| CN203132687U (en) * | 2013-01-25 | 2013-08-14 | 安徽科航自动化仪器有限公司 | A vibration sensor |
| CN104142176A (en) * | 2013-05-07 | 2014-11-12 | 珠海格力电器股份有限公司 | Air conditioner vibration detecting device |
| CN104344884A (en) * | 2013-07-26 | 2015-02-11 | 珠海格力电器股份有限公司 | Installation protection device for sensor and vibration detection device for air-conditioner |
-
2016
- 2016-02-01 CN CN201610071669.9A patent/CN105716706A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032068A (en) * | 1987-09-14 | 1989-03-29 | Tlv有限公司 | Steam trap operation detector |
| US5663504A (en) * | 1993-09-16 | 1997-09-02 | Kluft; Werner | Sensor system |
| CN201561978U (en) * | 2009-12-16 | 2010-08-25 | 西安热工研究院有限公司 | Multipurpose fixing and connecting device for vibration acceleration sensor |
| CN201803789U (en) * | 2010-09-17 | 2011-04-20 | 济南轨道交通装备有限责任公司 | Portable fixing device of vibrating sensor |
| JP2013032929A (en) * | 2011-08-01 | 2013-02-14 | Nec Tokin Corp | Vibration detection method |
| CN203132687U (en) * | 2013-01-25 | 2013-08-14 | 安徽科航自动化仪器有限公司 | A vibration sensor |
| CN104142176A (en) * | 2013-05-07 | 2014-11-12 | 珠海格力电器股份有限公司 | Air conditioner vibration detecting device |
| CN104344884A (en) * | 2013-07-26 | 2015-02-11 | 珠海格力电器股份有限公司 | Installation protection device for sensor and vibration detection device for air-conditioner |
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Application publication date: 20160629 |