CN104215538A - Respirator testing method of lamps - Google Patents
Respirator testing method of lamps Download PDFInfo
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- CN104215538A CN104215538A CN201310209412.1A CN201310209412A CN104215538A CN 104215538 A CN104215538 A CN 104215538A CN 201310209412 A CN201310209412 A CN 201310209412A CN 104215538 A CN104215538 A CN 104215538A
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Abstract
A respirator testing method of lamps is disclosed. The method comprises the following steps: a first respirator, a second respirator and a third respirator are selected from multiple respirators to be tested; the first respirator is placed in an incubator; thermal insulation is carried out at a first preset temperature for a first preset time, wherein the first preset temperature is higher than the temperature during normal operation of the first respirator; the first respirator is placed in an incubator; thermal insulation is carried out at a second preset temperature for a second preset time, wherein the second preset temperature is lower than the temperature during normal operation of the first respirator; high and low temperature tests are repeatedly carried out on the first respirator for preset number of times; and when the repetition number of times reaches a first preset number of times, whether edge warping or shedding phenomenon happens to the film of a respiration bolt on the first respirator is detected. By the testing method, use reliability of the respirators used on occasions with big temperature changes can be tested. The testing method can be adopted to rapidly find out design and manufacturing defects of a respirator.
Description
Technical field
The present invention relates to a kind of method of testing, particularly relate to a kind of respirator method of testing of light fixture.
Background technology
Along with the development of industrial lighting industry grows, in each industrial circle widespread use.Outdoor lighting lamp undergos that day alternates with night, Four seasons change, rainwater, dust or fog etc. test.As can be seen here, outdoor lighting lamp not only needs isolated outside water and dust, the pressure reduction that temperature variation also will be avoided to cause change and the knot mist caused because moisture enters and dew condensation phenomenon.Therefore, outdoor lighting lamp needs to have good sealing property and Acclimation temperature ability.And ensure that the sealing property of outdoor lighting lamp and the method for Acclimation temperature ability out of doors lighting install respirator at present; because respirator has waterproof, ventilative and dust-proof function, thus can guarantee that outdoor lighting lamp has good sealing property and Acclimation temperature ability.And whether respirator is effectively reliable in actual use, need to test it.
Generally that conveniently condition carries out waterproof and airing function test to respirator in prior art, do not consider the impact of practical service environment on it, and respirator affects by extraneous factor and may produce following problem: respirator uses for a long time under the environment that temperature variation is larger, the breathable films of respirator may be caused to occur obscission, waterproof failure causes intaking in lamp chamber, thus the electric component in lamp chamber or light source are damaged.
Summary of the invention
The object of the present invention is to provide one can test respirator whether reliable and effective method of testing when Long-Time Service.
In order to solve the problems of the technologies described above, the invention provides a kind of respirator method of testing of light fixture, the method comprises the following steps:
Described first respirator is placed in an incubator, is incubated the first Preset Time with the first preset temperature, temperature when described first preset temperature normally works higher than described first respirator,
Described first respirator is placed in an incubator, is incubated the second Preset Time with the second preset temperature, temperature when described second preset temperature normally works lower than described first respirator,
In preset times, following steps are repeated to described first respirator: be placed in an incubator by described first respirator, the first Preset Time is incubated with the first preset temperature, described first respirator is placed in an incubator, is incubated the second Preset Time with the second preset temperature
When described multiplicity reaches the first preset times, check whether the breathing bolt film on described first respirator has alice or obscission.
Wherein, the respirator method of testing of described light fixture is further comprising the steps of:
Described second respirator is placed in an incubator, presets humidity insulation the 3rd Preset Time with the 3rd preset temperature and first,
Check whether the breathing bolt film on described second respirator has alice or obscission.
Wherein, the respirator method of testing of described light fixture is further comprising the steps of:
One light fixture is provided,
One tensimeter is provided,
One dust box is provided,
Described 3rd respirator and described tensimeter are installed on described light fixture respectively,
By described light fixture to leave standstill the 4th Preset Time under the state normal temperature lighted, and record described manometric first displayed value,
Close described light fixture, described light fixture rested on the 5th Preset Time in described dust box with the state that talcum powder suspends,
Described light fixture is taken out from described dust box, leaves standstill the 6th Preset Time with the state lighted under normal temperature, and record described manometric second displayed value,
In the second preset times, following steps are repeated to described 3rd respirator: by described light fixture to leave standstill the 4th Preset Time under the state normal temperature lighted, and record described manometric first displayed value,
Described light fixture is rested on the 5th Preset Time in described dust box with the state that talcum powder suspends,
Described light fixture is taken out from described dust box, leaves standstill the 6th Preset Time with the state lighted under normal temperature, and record described manometric second displayed value,
When described multiplicity reaches the second preset times, whether the gas penetration potential assessing described 3rd respirator is normal.
Wherein, described, described first respirator is placed in an incubator, is incubated with the first preset temperature in the step of the first Preset Time, adopt high/low temperature rack to be incubated described first respirator.
Wherein, being placed in an incubator by described first respirator, be incubated in the step of the first Preset Time with the first preset temperature, described first preset temperature is 120 ± 5 DEG C, and described first Preset Time is for being equal to, or greater than 4 hours.
Wherein, be placed in an incubator described by described first respirator, be incubated the second Preset Time with the second preset temperature, described second preset temperature is-30 ± 5 DEG C, and described second Preset Time is equal to, or greater than 4 hours.
Wherein, described, in preset times, following steps are repeated to described first respirator: be placed in an incubator by described first respirator, the first Preset Time is incubated with the first preset temperature, described first respirator is placed in an incubator, be incubated in the step of the second Preset Time with the second preset temperature, described first preset times is 3 ~ 8 times.
Wherein, described, described second respirator is placed in an incubator, preset in the step of humidity insulation the 3rd Preset Time with the 3rd preset temperature and first, described 3rd preset temperature and described first presets temperature and humidity when humidity is respectively the work of described second respirator in actual working environment, and described 3rd Preset Time is equal to or greater than 96 hours.
Wherein, provide in a manometric step described, described tensimeter is precision digital tensimeter.
Wherein, described reach the second preset times when described multiplicity time, the gas penetration potential assessing described 3rd respirator, whether in normal step, when described second displayed value equals described first displayed value, judges that the gas penetration potential of described 3rd respirator is normal.
Method of testing provided by the invention can test out the reliability that respirator uses under the occasion that temperature variation is larger, this method of testing can find out rapidly the design and manufacture defect of respirator, guarantee that respirator reliably uses, make product can after Long-Time Service, still there is higher quality level, meet the demand of client's Long-Time Service, be also of value to the fiduciary level improving product simultaneously, producing reliably can for the product of client's Long-Time Service.
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 the respirator method of testing of a kind of light fixture provided by the 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.
Refer to Fig. 1, the respirator method of testing of a kind of light fixture that embodiment of the present invention provides.The method comprises the following steps:
Step 101: select the first respirator, the second respirator and the 3rd respirator from multiple respirator to be measured.
Step 103: described first respirator is placed in an incubator, is incubated the first Preset Time with the first preset temperature, temperature when described first preset temperature normally works higher than described first respirator.This step is used for carrying out high temperature test to described first respirator.Described first preset temperature is that the temperature rise of the most high workload environment that can bear according to the light fixture being provided with described first respirator when adding that described first respirator is assemblied on described light fixture is determined.Described first Preset Time is determined according to the practical situations of described first respirator.In the present embodiment, high/low temperature rack is adopted to be incubated described first respirator.First preset temperature is 120 DEG C.First Preset Time is 4h.
Step 105: described first respirator is placed in an incubator, is incubated the second Preset Time with the second preset temperature, temperature when described second preset temperature normally works lower than described first respirator.This step is used for carrying out low-temperature test to the first respirator.Described second preset temperature according to be provided with described first respirator light fixture the minimum operating ambient temperature that can bear and determine.Described second Preset Time is equal to, or greater than 4 hours.In the present embodiment, high/low temperature rack is adopted to be incubated described first respirator.Through market study, the minimum working environment of known described light fixture is-40 DEG C, concrete, and described second preset temperature is-30 DEG C.Described second Preset Time is 4h.
Step 107: following steps are repeated in preset times to described first respirator and is specially:
In preset times, following steps are repeated to described first respirator: be placed in an incubator by described first respirator, the first Preset Time is incubated with the first preset temperature, described first respirator is placed in an incubator, is incubated the second Preset Time with the second preset temperature.This step is used for carrying out the test of high/low temperature circulating temperature fluctuating stress to described first respirator, simulates the temperature variation situation that described first respirator is subjected in actual use.Described preset times was determined according to the serviceable life of described first respirator.Described preset times is 3 ~ 8 times.In the present embodiment, described preset times is 5 times.
Step 109: when described multiplicity reaches preset times, checks whether the breathing bolt film on described first respirator has alice or obscission.This step is for testing the reliability of described first respirator after the test of high/low temperature circulating temperature fluctuating stress.Reliability: element, product, system within a certain period of time, trouble-freely perform ability or the possibility of appointed function under certain condition.In the present embodiment, due to described respirator in actual use, when being generally subjected to temperature variation, the breathing bolt film on described first respirator can damage.Therefore by checking whether the breathing bolt film on described first respirator has alice or obscission to test the reliability of described first respirator.When alice or obscission appear in the film on described first respirator, then judge the reliability existing defects of described first respirator, need to redesign described first respirator.When alice or obscission do not appear in the film on described first respirator, then judge the non-existing defects of reliability of described first respirator.Concrete, in the present embodiment, there is not alice or obscission in the film on described respirator, judges the non-existing defects of reliability of described first respirator.
Step 111: be placed in an incubator by described second respirator, presets humidity insulation the 3rd Preset Time with the 3rd preset temperature and first.This step is used for carrying out damp heat test to described second respirator, is in situation in hygrothermal environment in actual use for simulating described second respirator.Described 3rd preset temperature and described first presets temperature and humidity when humidity is respectively the work of described second respirator in actual working environment.Described 3rd Preset Time is equal to or greater than 96 hours.In the present embodiment, high/low temperature rack is adopted to be incubated, through market study described second respirator.The temperature of the working environment of described light fixture is 40 DEG C, and humidity is 90%, therefore described 3rd preset temperature is 40 DEG C, and the described first default humidity is 90%, and described 3rd Preset Time is 96h.
Step 113: check whether the breathing bolt film on described second respirator has alice or obscission.This step is for detecting the reliability of described second respirator after damp and hot test.In the present embodiment, due to described second respirator in actual use, when being generally in hygrothermal environment, the breathing bolt film on described second respirator can damage.Therefore by checking whether the breathing bolt film on described second respirator has alice or obscission to test the reliability of described second respirator.When alice or obscission appear in the breathing bolt film on described second respirator, then judge the reliability existing defects of described second respirator.When alice or obscission do not appear in the breathing bolt film on described second respirator, then judge the non-existing defects of reliability of described second respirator, need to redesign described second respirator.Concrete, in the present embodiment, there is not alice or obscission in the breathing bolt film on described second respirator, judges the non-existing defects of reliability of described second respirator.Certainly, in other embodiments, step 111 ~ step 113 is the situations being in humid tropical condition by simulated respiration device, test the reliability of respirator, add in the present embodiment that step 111 ~ step 113 is because respirator likely uses comparatively greatly and under moisture occasion in temperature variation, therefore the situation of humid tropical condition is in by simulated respiration device, test the reliability of respirator.But in fact, step 111 ~ step 113 can be omitted, because just the situation that respirator may run into all listed in the present embodiment, then test its reliability, thus the reliability of the device that can farthest ensure respiration.
Step 115 a: light fixture is provided.In present embodiment, because described respirator is generally installed on outdoor lighting lamp, and in order to more tally with the actual situation, described light fixture is outdoor lighting lamp.
Step 117 a: tensimeter is provided.In the present embodiment, in order to test out the force value of described light fixture accurately, described tensimeter is described precision digital tensimeter.
Step 119 a: dust box is provided.
Step 121: described 3rd respirator and described tensimeter are installed on described light fixture respectively.
Step 123: by described light fixture to leave standstill the 4th Preset Time under the state normal temperature lighted, and record described manometric first displayed value.This step be in order to simulate described light fixture normally work time, the force value of described 3rd respirator.In the present embodiment, described 4th Preset Time is 3h.
Step 125: close described light fixture, rests on the 5th Preset Time in described dust box by described light fixture with the state that talcum powder suspends.This step is in order under making described light fixture be in dust state.In the present embodiment, close described light fixture, and place in dust box immediately, and the blower fan opening dust box makes talcum powder suspend, under talcous state, leave standstill the 5th Preset Time.5th Preset Time is 3h.
Step 127: taken out from described dust box by described light fixture, leaves standstill the 6th Preset Time with the state lighted under normal temperature, and records described manometric second displayed value.This step to be in situation under dust state in practical application in order to simulate described light fixture.In the present embodiment, described 6th Preset Time is 3h.
Step 129: in the second preset times, following steps are repeated to described 3rd respirator and is specially:
In the second preset times, following steps are repeated to described 3rd respirator: by described light fixture to leave standstill the 4th Preset Time under the state normal temperature lighted, and record described manometric first displayed value,
Described light fixture is rested on the 5th Preset Time in described dust box with the state that talcum powder suspends,
Described light fixture is taken out from described dust box, leaves standstill the 6th Preset Time with the state lighted under normal temperature, and record described manometric second displayed value.This step carries out dust circulation test to described 3rd respirator, simulates described 3rd respirator worst dust state in actual use to greatest extent.In the present embodiment, described second preset times is 3 times.
131: when described multiplicity reaches the second preset times, whether the gas penetration potential assessing described 3rd respirator is normal.When described second displayed value equals described first displayed value, judge that the gas penetration potential of described 3rd respirator is normal.In the present embodiment, after 3 dust tests, the second displayed value is each time identical with the numerical value of the first displayed value each time respectively.The gas penetration potential that can judge described 3rd respirator is thus normal.Certainly, in other embodiments, step 115 ~ step 131 is the situations being in dust state by simulated respiration device, test the reliability of respirator, add in the present embodiment that step 115 ~ step 131 is because respirator likely uses in, moisture occasion comparatively large in temperature variation and dust atmosphere, therefore the situation of dust state is in by simulated respiration device, test the reliability of respirator.But in fact, step 115 ~ step 131 can be omitted, because just the situation that respirator may run into all listed in the present embodiment, then test its reliability, thus the reliability of the device that can farthest ensure respiration.
Method of testing provided by the invention can test out the reliability that respirator uses under the occasion that temperature variation is larger, this method of testing can find out rapidly the design and manufacture defect of respirator, guarantee the reliable use of respirator, make product can after Long-Time Service, still there is higher quality level, meet the demand of client's Long-Time Service, be also of value to the fiduciary level improving product simultaneously, producing reliably can for the product of client's Long-Time Service.
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 respirator method of testing for light fixture, it is characterized in that, the method comprises the following steps:
The first respirator, the second respirator and the 3rd respirator is selected from multiple respirator to be measured;
Described first respirator is placed in an incubator, is incubated the first Preset Time with the first preset temperature, temperature when described first preset temperature normally works higher than described first respirator,
Described first respirator is placed in an incubator, is incubated the second Preset Time with the second preset temperature, temperature when described second preset temperature normally works lower than described first respirator,
In preset times, following steps are repeated to described first respirator: be placed in an incubator by described first respirator, the first Preset Time is incubated with the first preset temperature, described first respirator is placed in an incubator, is incubated the second Preset Time with the second preset temperature
When described multiplicity reaches the first preset times, check whether the breathing bolt film on described first respirator has alice or obscission.
2. the respirator method of testing of a kind of light fixture according to claim 1, is characterized in that, the respirator method of testing of described light fixture is further comprising the steps of:
Described second respirator is placed in an incubator, presets humidity insulation the 3rd Preset Time with the 3rd preset temperature and first,
Check whether the breathing bolt film on described second respirator has alice or obscission.
3. the respirator method of testing of a kind of light fixture according to claim 1, is characterized in that, the respirator method of testing of described light fixture is further comprising the steps of:
One light fixture is provided,
One tensimeter is provided,
One dust box is provided,
Described 3rd respirator and described tensimeter are installed on described light fixture respectively,
By described light fixture to leave standstill the 4th Preset Time under the state normal temperature lighted, and record described manometric first displayed value,
Close described light fixture, described light fixture rested on the 5th Preset Time in described dust box with the state that talcum powder suspends,
Described light fixture is taken out from described dust box, leaves standstill the 6th Preset Time with the state lighted under normal temperature, and record described manometric second displayed value,
In the second preset times, following steps are repeated to described 3rd respirator: by described light fixture to leave standstill the 4th Preset Time under the state normal temperature lighted, and record described manometric first displayed value,
Described light fixture is rested on the 5th Preset Time in described dust box with the state that talcum powder suspends,
Described light fixture is taken out from described dust box, leaves standstill the 6th Preset Time with the state lighted under normal temperature, and record described manometric second displayed value,
When described multiplicity reaches the second preset times, whether the gas penetration potential assessing described 3rd respirator is normal.
4. the respirator method of testing of a kind of light fixture according to claim 1, it is characterized in that, described, described first respirator is placed in an incubator, is incubated with the first preset temperature in the step of the first Preset Time, adopt high/low temperature rack to be incubated described first respirator.
5. the respirator method of testing of a kind of light fixture according to claim 1, it is characterized in that, described first respirator is placed in an incubator, be incubated in the step of the first Preset Time with the first preset temperature, described first preset temperature is 120 ± 5 DEG C, and described first Preset Time is for being equal to, or greater than 4 hours.
6. the respirator method of testing of a kind of light fixture according to claim 1, it is characterized in that, described, described first respirator is placed in an incubator, the second Preset Time is incubated with the second preset temperature, described second preset temperature is-30 ± 5 DEG C, and described second Preset Time is equal to, or greater than 4 hours.
7. the respirator method of testing of a kind of light fixture according to claim 1, it is characterized in that, described, in preset times, following steps are repeated to described first respirator: be placed in an incubator by described first respirator, the first Preset Time is incubated with the first preset temperature, described first respirator is placed in an incubator, be incubated in the step of the second Preset Time with the second preset temperature, described first preset times is 3 ~ 8 times.
8. the respirator method of testing of a kind of light fixture according to claim 2, it is characterized in that, described, described second respirator is placed in an incubator, preset in the step of humidity insulation the 3rd Preset Time with the 3rd preset temperature and first, described 3rd preset temperature and described first presets temperature and humidity when humidity is respectively the work of described second respirator in actual working environment, and described 3rd Preset Time is equal to or greater than 96 hours.
9. the respirator method of testing of a kind of light fixture according to claim 3, is characterized in that, provide in a manometric step described, described tensimeter is precision digital tensimeter.
10. the respirator method of testing of a kind of light fixture according to claim 3, it is characterized in that, described reach the second preset times when described multiplicity time, assess in the whether normal step of gas penetration potential of described 3rd respirator, when described second displayed value equals described first displayed value, judge that the gas penetration potential of described 3rd respirator is normal.
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| CN201310209412.1A CN104215538B (en) | 2013-05-30 | 2013-05-30 | A kind of respirator method of testing of light fixture |
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| CN201310209412.1A CN104215538B (en) | 2013-05-30 | 2013-05-30 | A kind of respirator method of testing of light fixture |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594608A (en) * | 2019-09-16 | 2019-12-20 | 扬州市永晟照明集团有限公司 | Manufacturing process of LED lamp |
| CN113109008A (en) * | 2021-03-25 | 2021-07-13 | 芜湖雅葆轩电子科技股份有限公司 | Tolerance detection method for finished circuit board |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004177301A (en) * | 2002-11-28 | 2004-06-24 | Hitachi Ltd | Temperature test control system for thermal shock testing apparatus |
| RU2471685C1 (en) * | 2011-06-08 | 2013-01-10 | Открытое акционерное общество "Научно-исследовательский институт полупроводникового машиностроения" | Installation for vacuum thermocycling of photoconverter panels |
| CN203443748U (en) * | 2013-07-30 | 2014-02-19 | 浙江金刚汽车有限公司 | Lamp breathable waterproof membrane detecting device |
-
2013
- 2013-05-30 CN CN201310209412.1A patent/CN104215538B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004177301A (en) * | 2002-11-28 | 2004-06-24 | Hitachi Ltd | Temperature test control system for thermal shock testing apparatus |
| RU2471685C1 (en) * | 2011-06-08 | 2013-01-10 | Открытое акционерное общество "Научно-исследовательский институт полупроводникового машиностроения" | Installation for vacuum thermocycling of photoconverter panels |
| CN203443748U (en) * | 2013-07-30 | 2014-02-19 | 浙江金刚汽车有限公司 | Lamp breathable waterproof membrane detecting device |
Non-Patent Citations (2)
| Title |
|---|
| 惠州市乐德电子科技有限公司: "《产品承认书》", 《HTTP://WWW.HZLEDE.COM/DOWNSLIST.ASPX? ID=128》 * |
| 朱琳.: "《防水透气阀在LED路灯设计中的应用》", 《湖南农机》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594608A (en) * | 2019-09-16 | 2019-12-20 | 扬州市永晟照明集团有限公司 | Manufacturing process of LED lamp |
| CN113109008A (en) * | 2021-03-25 | 2021-07-13 | 芜湖雅葆轩电子科技股份有限公司 | Tolerance detection method for finished circuit board |
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| CN104215538B (en) | 2017-06-06 |
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