CN104677585A - Lamp vibration testing method - Google Patents
Lamp vibration testing method Download PDFInfo
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- CN104677585A CN104677585A CN201310628097.6A CN201310628097A CN104677585A CN 104677585 A CN104677585 A CN 104677585A CN 201310628097 A CN201310628097 A CN 201310628097A CN 104677585 A CN104677585 A CN 104677585A
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- light fixture
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- securing member
- frequency sweep
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Abstract
The invention discloses a lamp vibration testing method. The lamp vibration testing method comprises the following steps: mounting a lamp: mounting the lamp on a testing tool, and fixing the testing tool on a vibration platform; carrying out scanning frequency vibration: carrying out a scanning frequency vibration test for a pre-set time on the lamp in the X direction, the Y direction and the Z direction, wherein the X direction, the Y direction and the Z direction are vertical two by two; detecting fastening pieces: taking off the lamp from the testing tool, and detecting whether each fastening piece is fastened invalidly or not; if so, judging that each fastening piece of the lamp is unqualified; otherwise, judging that each fastening piece of the lamp is qualified. According to the lamp vibration testing method, the scanning frequency vibration can be carried out on the lamp and all possible frequencies in a real vibration environment of the lamp can be simulated, so that the anti-vibration performance of the fastening pieces of the lamp can be detected before the lamp is applied.
Description
Technical field
The present invention relates to technical field of lamps, particularly relate to a kind of light fixture vibration testing method.
Background technology
Light fixture is a kind of energy printing opacity, distribution and the photodistributed utensil of change light source, comprise the lamp housing of light source and fixed light source, light fixture is widely used in room lighting, commercial lighting, industrial lighting etc., and the lamp housing of light fixture is fastenedly connected as a whole by the web member of multiple housing usually by securing member.
When lamp applications is when a vibrating carrier (such as vehicle); the lamp housing of light fixture easily occurs that under using for a long time securing member loosens or comes off; make the fastening inefficacy of lamp housing; thus causing lamp housing not have due protective effect to light source, the shock resistance thus detecting light fixture securing member before lamp applications becomes more and more important.
Summary of the invention
The object of the present invention is to provide a kind of light fixture vibration testing method that can detect the shock resistance of light fixture securing member.
In order to solve the problems of the technologies described above, the invention provides
A kind of light fixture vibration testing method, is characterized in that, comprise the following steps,
Lamp installation: by lamp installation in a test tool, and described test tool is fixed on a shaking table;
Frequency sweep is vibrated: carry out the frequency sweep vibration test of Preset Time in X-direction, Y-direction and Z-direction respectively to described light fixture, described X-direction, described Y-direction and described Z-direction are vertical between two, each party to default frequency sweep time of vibration be 45 ~ 90min, the frequency range of described frequency sweep vibration test is 2Hz ~ 18Hz, in the frequency range of 2Hz ~ 7.7355Hz, the amplitude of frequency sweep vibration is 15 ~ 30mm, and in the frequency range of 7.7355Hz ~ 18Hz, the acceleration of frequency sweep vibration is 1 ~ 4m/s
2;
Securing member detects: detect the whether fastening inefficacy of described each securing member, if the fastening inefficacy of described securing member, then judge that described light fixture securing member is defective, if described securing member is effectively fastening, then judge that described light fixture securing member is qualified.
Wherein, each party to default frequency sweep time of vibration be 60min, in the frequency range of 2Hz ~ 7.7355Hz, frequency sweep vibration amplitude be 22.5mm, in the frequency range of 7.7355Hz ~ 18Hz, frequency sweep vibration acceleration be 2.71m/s
2.
Wherein, the sweep method of described frequency sweep vibration test is logarithm frequency sweep, and the sweep rate of described frequency sweep vibration test is 1oct/min.
Wherein, the sweep method of described frequency sweep vibration test is linear frequency sweep, and the sweep rate of described frequency sweep vibration test is 1Hz/min
Wherein, the fastening inefficacy of described securing member comprise described securing member loosen, described securing member comes off, crackle appears in described securing member, disconnections of described securing member, described securing member distortion, described securing member bend and described fastener torque depart from preset value.
Wherein, after described light fixture detecting step, also comprise step,
Whether web member detects: detect the web member be connected with described securing member and loosen or rupture, if described web member loosens or fracture, then judge that described web member is defective, if described web member does not loosen and fracture, then judge that described web member is qualified.
Wherein, before described lamp installation step, also step is comprised:
Before shaking, securing member detects: whether each securing member detecting light fixture connects effective, if described each securing member lost efficacy, then terminates test, and if described each securing member is effective, then enters described lamp installation step.
Wherein, in described frequency sweep vibrating step, whether to described light fixture access rated voltage, and it is luminous normal to detect described light fixture.
Wherein, before described shaking before securing member detecting step, also step is comprised:
To described light fixture input rated voltage, detect described light fixture whether luminous normal, if described lamp luminescence is abnormal, then in described frequency sweep vibration test, rated voltage is not accessed to described light fixture.
Wherein, described light fixture is vehicle LED light fixture, and described light fixture adopts ceiling type or installation by adhering mode to be installed on described test tool.
Implement light fixture vibration testing method provided by the invention, its beneficial effect is, this light fixture vibration testing method is by carrying out frequency sweep vibration to light fixture, the institute's likely frequency occurred in light fixture indeed vibrations environment can be simulated, thus before lamp applications, detect the shock resistance of light fixture securing member.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the process flow diagram of light fixture vibration testing method first embodiment of the present invention;
Fig. 2 is the process flow diagram of light fixture vibration testing method second embodiment of the present invention;
Fig. 3 is the process flow diagram of light fixture vibration testing method the 3rd embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is clearly and completely described.
With reference to Fig. 1, the present invention proposes a kind of light fixture vibration testing method, comprise the following steps:
S10, lamp installation: by lamp installation in a test tool, and described test tool is fixed on a shaking table.
S20, frequency sweep is vibrated: carry out the frequency sweep vibration test of Preset Time in X-direction, Y-direction and Z-direction respectively to described light fixture, described X-direction, described Y-direction and described Z-direction are vertical between two.Thus in light fixture vibration testing method of the present invention, the frequency range of frequency sweep vibration test is set as 2Hz ~ 18Hz, wherein, in the frequency range of 2Hz ~ 7.7355Hz, the amplitude of frequency sweep vibration is 15 ~ 30mm, be preferably 22.5mm (this amplitude is amplitude when work closest to excavator), in the frequency range of 7.7355Hz ~ 18Hz, acceleration 1 ~ 4m/s that frequency sweep is vibrated
2, be preferably 2.71m/s
2(this acceleration is vibration acceleration when working closest to excavator).Further, in X-direction, Y-direction and Z-direction each party to frequency sweep time of vibration be set to 45 ~ 90min, be preferably 60min.Light fixture vibration testing method of the present invention preferably adopts log scan, and its sweep rate is frequency multiplication, i.e. a 1oct/min per minute.Natch, light fixture vibration testing method of the present invention also can adopt linear sweep, and when it adopts linear sweep, sweep rate is 1Hz/min.
In light fixture vibration testing method of the present invention, frequency sweep vibration test is a kind of in process of the test, maintains one or two vibration parameters (amplitude, speed or acceleration) magnitude constant, and the vibration test of vibration frequency back and forth change continuously within the specific limits.Frequency sweep vibration test medium frequency changes according to certain rule, and vibration level is the function of frequency.Frequency sweeping in frequency sweep vibration test can be linear sweep, also can be log scan, linear sweep frequency change be linear, i.e. inswept how many hertz in the unit interval, its sweep speed unit is Hz/s or Hz/min, and linear sweep is mainly used in the test of carefully looking for resonant frequency; The change of logarithm swept frequency press logarithm and is changed, and frequency frequency multiplication number of passes inswept in same time is identical, and during log scan, low frequency sweep obtains slowly and high frequency sweep obtains soon, and its sweep speed unit is oct/min or oct/s, oct is octave.
Light fixture vibration testing method of the present invention is mainly used in the vibration environment of simulating vehicle (excavator particularly in engineering truck) light fixture, vehicle in use, vibration frequency range is generally 2Hz ~ 18Hz, vehicle is when low-frequency vibration, to determine amplitude vibration, vehicle vibrates to determine acceleration when higher-frequency is vibrated.
S30, securing member detects: terminate described frequency sweep vibration test, take off described light fixture from described test tool, detect the whether fastening inefficacy of described each securing member, if the fastening inefficacy of described securing member, then judge that described securing member resistance to shock is defective, if described securing member is effectively fastening.The fastening inefficacy of described securing member comprises that securing member loosens, securing member comes off, crackle appears in securing member, securing member disconnections, securing member distortion, securing member bends and fastener torque departs from preset value.Wherein, securing member loosens, the failure phenomenon such as securing member comes off, crackle appears in securing member, securing member disconnection, securing member distortion, securing member bending drawn by naked eyes and observable; Fastener torque needs to be detected by special dial torque wrench, fastener torque just need can play due fastening effect in rational scope, the torque range of securing member and the size of securing member and mechanical property rank correlation, such as standard bolt, its corresponding moment of torsion of the standard bolt of M6, performance rate 8.8 is 7 ~ 11Nm
This light fixture vibration testing method, by carrying out frequency sweep vibration to light fixture, can simulate the institute's likely frequency occurred in light fixture indeed vibrations environment, thus before lamp applications, detect the shock resistance of light fixture securing member.This light fixture vibration testing method can be used for the factory inspection of light fixture, thus eliminates out the light fixture of potential fastening problems.
With reference to Fig. 2, in order to confirm that light fixture vibration testing method of the present invention is on the impact of lamp connector further, after described securing member detecting step S30, also comprise step S40, whether web member detects: detect the web member be connected with described securing member and loosen or rupture, if described web member loosens or fracture, then judge that described web member resistance to shock is defective, if described web member does not loosen and fracture, then judge that described web member resistance to shock is qualified.
In order to avoid the securing member just lost efficacy before the test is to the interference of securing member vibration resistance, before lamp installation step, also comprise step:
S01, before shaking, securing member detects: whether each securing member detecting light fixture connects effective, if described each securing member lost efficacy, then terminates test, and if described each securing member is effective, then enters lamp installation step.
With reference to Fig. 3, in order to determine that this method light fixture vibration testing method is on the impact of light fixture electrical property further, in frequency sweep vibrating step S20, to described light fixture access rated voltage, and whether luminous normal, if described lamp luminescence is abnormal, can judge that the vibration resistance of lamp light source is defective if detecting described light fixture, if described light fixture normal luminous, can judge that the vibration resistance of lamp light source is qualified.In light fixture vibration testing method of the present invention, the luminescence of light fixture is abnormal is generally light source scintillation, not luminous, colour temperature change and colour rendering index change.
In order to avoid the interference that the defective vibration resistance to light source of light source itself before the test detects, before shaking before securing member detecting step, also comprise step S02:
To described light fixture input rated voltage, detect described light fixture whether luminous normal, if described lamp luminescence is abnormal, then judge that lamp luminescence is abnormal, and in frequency sweep vibration test, rated voltage is not accessed to light fixture, namely in frequency sweep vibration test, the luminescent properties of light source is not detected.
Light fixture vibration testing method of the present invention is mainly used in vehicle LED light fixture, light fixture adopts ceiling type or installation by adhering mode to be installed on described test tool, vehicle LED light fixture is based on ceiling type mounting means in the market, and therefore light fixture vibration testing method of the present invention preferably adopts ceiling type mounting means.
The above is 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 the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a light fixture vibration testing method, is characterized in that, comprises the following steps,
Lamp installation: by lamp installation in a test tool, and described test tool is fixed on a shaking table;
Frequency sweep is vibrated: carry out the frequency sweep vibration test of Preset Time in X-direction, Y-direction and Z-direction respectively to described light fixture, described X-direction, described Y-direction and described Z-direction are vertical between two, each party to default frequency sweep time of vibration be 45 ~ 90min, the frequency range of described frequency sweep vibration test is 2Hz ~ 18Hz, in the frequency range of 2Hz ~ 7.7355Hz, the amplitude of frequency sweep vibration is 15 ~ 30mm, and in the frequency range of 7.7355Hz ~ 18Hz, the acceleration of frequency sweep vibration is 1 ~ 4m/s
2;
Securing member detects: detect the whether fastening inefficacy of described each securing member, if the fastening inefficacy of described securing member, then judge that described light fixture securing member is defective, if described securing member is effectively fastening, then judge that described light fixture securing member is qualified.
2. light fixture vibration testing method according to claim 1, it is characterized in that, each party to default frequency sweep time of vibration be 60min, in the frequency range of 2Hz ~ 7.7355Hz, the amplitude of frequency sweep vibration is 22.5mm, in the frequency range of 7.7355Hz ~ 18Hz, the acceleration of frequency sweep vibration is 2.71m/s
2.
3. light fixture vibration testing method according to claim 2, is characterized in that, the sweep method of described frequency sweep vibration test is logarithm frequency sweep, and the sweep rate of described frequency sweep vibration test is 1oct/min.
4. light fixture vibration testing method according to claim 1, is characterized in that, the sweep method of described frequency sweep vibration test is linear frequency sweep, and the sweep rate of described frequency sweep vibration test is 1Hz/min.
5. light fixture vibration testing method according to claim 1, it is characterized in that, the fastening inefficacy of described securing member comprises that described securing member loosens, described securing member comes off, crackle appears in described securing member, disconnections of described securing member, described securing member distortion, described securing member bends and described fastener torque departs from preset value.
6. light fixture vibration testing method according to claim 1, is characterized in that, after described light fixture detecting step, also comprises step,
Whether web member detects: detect the web member be connected with described securing member and loosen or rupture, if described web member loosens or fracture, then judge that described web member is defective, if described web member does not loosen and fracture, then judge that described web member is qualified.
7. light fixture vibration testing method according to claim 1, is characterized in that, before described lamp installation step, also comprises step:
Before shaking, securing member detects: whether each securing member detecting light fixture connects effective, if described each securing member lost efficacy, then terminates test, and if described each securing member is effective, then enters described lamp installation step.
8. light fixture vibration testing method according to claim 1, is characterized in that, in described frequency sweep vibrating step, whether to described light fixture access rated voltage, and it is luminous normal to detect described light fixture.
9. light fixture vibration testing method according to claim 8, is characterized in that, before described shaking before securing member detecting step, also comprises step:
To described light fixture input rated voltage, detect described light fixture whether luminous normal, if described lamp luminescence is abnormal, then in described frequency sweep vibration test, rated voltage is not accessed to described light fixture.
10. the light fixture vibration testing method according to any one of claim 1-9, is characterized in that, described light fixture is vehicle LED light fixture, and described light fixture adopts ceiling type or installation by adhering mode to be installed on described test tool.
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|---|---|---|---|
| CN201310628097.6A CN104677585A (en) | 2013-11-29 | 2013-11-29 | Lamp vibration testing method |
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|---|---|---|---|
| CN201310628097.6A CN104677585A (en) | 2013-11-29 | 2013-11-29 | Lamp vibration testing method |
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| CN104677585A true CN104677585A (en) | 2015-06-03 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953993A (en) * | 2016-07-04 | 2016-09-21 | 中国兵器工业第二〇三研究所 | Rapid vibration testing method |
| CN106441769A (en) * | 2016-09-19 | 2017-02-22 | 武汉大学 | Method for detecting anti-mechanical-vibration performance of high-voltage wireless power supply system |
| CN107271129A (en) * | 2017-05-03 | 2017-10-20 | 北京航天控制仪器研究所 | A kind of vibration testing method of accurate power transmitting device |
| CN107314879A (en) * | 2017-07-18 | 2017-11-03 | 中国核电工程有限公司 | A kind of shock test method of antidetonation lighting apparatus suitable for three generations's nuclear power station |
| CN110487502A (en) * | 2019-07-11 | 2019-11-22 | 深圳南方立讯检测有限公司 | A kind of street lamp sinusoidal vibration test method |
| CN114812987A (en) * | 2021-01-22 | 2022-07-29 | 常州星宇车灯股份有限公司 | Vibration test monitoring system and method for lamp |
-
2013
- 2013-11-29 CN CN201310628097.6A patent/CN104677585A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953993A (en) * | 2016-07-04 | 2016-09-21 | 中国兵器工业第二〇三研究所 | Rapid vibration testing method |
| CN105953993B (en) * | 2016-07-04 | 2018-06-01 | 中国兵器工业第二一三研究所 | A kind of fast vibration test method |
| CN106441769A (en) * | 2016-09-19 | 2017-02-22 | 武汉大学 | Method for detecting anti-mechanical-vibration performance of high-voltage wireless power supply system |
| CN107271129A (en) * | 2017-05-03 | 2017-10-20 | 北京航天控制仪器研究所 | A kind of vibration testing method of accurate power transmitting device |
| CN107314879A (en) * | 2017-07-18 | 2017-11-03 | 中国核电工程有限公司 | A kind of shock test method of antidetonation lighting apparatus suitable for three generations's nuclear power station |
| CN110487502A (en) * | 2019-07-11 | 2019-11-22 | 深圳南方立讯检测有限公司 | A kind of street lamp sinusoidal vibration test method |
| CN114812987A (en) * | 2021-01-22 | 2022-07-29 | 常州星宇车灯股份有限公司 | Vibration test monitoring system and method for lamp |
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Application publication date: 20150603 |