CN101487789B - Test method and apparatus for natural environment of electronic product - Google Patents
Test method and apparatus for natural environment of electronic product Download PDFInfo
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- CN101487789B CN101487789B CN 200910103170 CN200910103170A CN101487789B CN 101487789 B CN101487789 B CN 101487789B CN 200910103170 CN200910103170 CN 200910103170 CN 200910103170 A CN200910103170 A CN 200910103170A CN 101487789 B CN101487789 B CN 101487789B
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Abstract
The invention provides an electronic product natural environment test method. The invention is characterized in that the natural environment temperature and the temperature change are strengthened and the electronic product is tested in the strengthened environment. The invention further provides a testing device for implementing the electronic product natural environment test method. The method can reflect the failure and the environmental suitability of the electronic product in the natural environment factually, and can also effectively shorten the environment test time and accelerate the test.
Description
Technical field
The present invention relates to a kind of Natural Environmental Test method, relate in particular to a kind of natural environment of electronic product test method; The invention still further relates to the test unit of this Natural Environmental Test method.
Background technology
At present, the environmental test method of electronic product mainly contains two kinds of laboratory environment test and Natural Environmental Test.The laboratory environment test is a kind of method that the simulation or the test condition of actual environment are strengthened; Though this method can obtain the test findings of being correlated with in the short period of time; But because its experimental factor is single, multifactorial combined action effect in the simulating natural environment effectively, and; Environmental baseline after the reinforcement usually causes overtesting or undertesting again, so the variation of laboratory environment test findings under can not the effecting reaction actual environment; Though the test findings that Natural Environmental Test obtains is true because environmental activity is comparatively slow, need the long time just can obtain test findings, concerning short electronic product of construction cycle, ageing relatively poor be its a fatal shortcoming.
Summary of the invention
The object of the present invention is to provide short natural environment of electronic product test method of a kind of environmental test time.
Another object of the present invention is to provide the test unit of this Natural Environmental Test method.
The objective of the invention is to realize like this: a kind of natural environment of electronic product test method is characterized in that: strengthen physical environment temperature and difference variation, place the environment after the reinforcement to make an experiment electronic product.
The inventive method mainly is to utilize the thermal effect effect of illumination to strengthen physical environment temperature and difference variation.
Temperature in the environment after the said reinforcement, humidity are consistent with temperature, the humidity variation tendency of physical environment, and other ambient conditions are identical with condition in the physical environment.
Another object of the present invention is achieved in that a kind of test unit that is used for the natural environment of electronic product test method, comprises casing, specimen holder and antinose-dive leg, it is characterized in that: said specimen holder is arranged in the said casing; Said casing is arranged on the last plane of antinose-dive leg; The last plane and the surface level of said antinose-dive leg form an angle.
For make in the casing atmospheric medium and real atmosphere environment basically always, the bottom opening of said casing reaches the purpose that forms convection current with outside air; The equal spray black paint of the inner and outer wall of casing; Specimen holder adopts nonmetallic materials such as timber etc. to process, and the size of specimen holder is according to the size design of casing, and the distance of the sample on the said specimen holder and the top of casing, bottom and sidewall is all greater than 10cm.
In order to be that casing is light, the framework of said casing adopts aluminium alloy extrusions to be welded, and six are adopted aluminium alloy sheet to cover; Sample is thrown examination and sampling detects for ease, the wherein one side of said casing be can be for convenience detach syndeton.
In order to make the good weatherability of casing, said black paint is the fluororesin sub-gloss varnish; Said black paint adopts spray gun to carry out integral spray; In actual use, the field staff regularly checks casing, should in time carry out the coating touch-up paint to the surface that has lacquer to come off.
The antinose-dive leg material selects the angle steel of 2 * 50mm to be welded, and surperficial mopping is handled; The last plane of said antinose-dive leg becomes 5 degree angles with surface level; The least significant end on the last plane of said support is not less than 100cm apart from the height on ground.
The analysis of data recording and test for ease also is provided with the humiture registering instrument on the said specimen holder; The PR-III type multichannel temperature and humidity measurement appearance of University Of Chongqing's development can be made, customizes or bought to said humiture registering instrument by oneself, requires:
Port number: 8 passages (4 tunnel temperature, 4 tunnel humidity);
Temperature accuracy :≤± (0.5+T * 1%) ℃;
The humidity precision :≤± 5%RH.;
Temperature acquisition scope :-60～100 ℃;
Humidity acquisition range: 0～100%RH.
The principle of work of test unit of the present invention is: the thermal effect principle of utilizing illumination; Solar light irradiation is when a tank surface; A luminous energy part can be reflected; A part can be absorbed and convert heat energy into casing and the temperature inside the box are raise, and the variation of the temperature inside the box also can cause the variation of internal relative humidity.
Wherein, E is an energy value, and its relation satisfies following formula:
E3＝E0-E1-E2
In the formula: the E0-solar radiation energy;
E1-tank surface reflected energy;
The heat energy that the E2-tank surface is scattered and disappeared to environmental radiation;
The E3-tank wall also is that this device is used to strengthen the part that thermal effect is utilized to box house heat radiation energy.
Beneficial effect of the present invention is:
1, the inventive method can inefficacy and the environmental suitability of actual response electronic product in physical environment, can effectively shorten the time of environmental test again, accelerated test;
2, the inventive method does not change the ambient condition of actual environment; Utilize the illumination thermal effect; The alternate of strenuous test temperature, humidity and humiture, thereby the deterioration of accelerated electron product or inefficacy speed have reflected the test findings of electronic product in physical environment truly;
3, the test unit among the present invention is simple in structure, and preparation cost is low; Natural Environmental Test effective, reliability is high.
Description of drawings
Fig. 1 is a principle schematic of the present invention;
Fig. 2 is the body structure synoptic diagram of the embodiment of the invention 1;
Fig. 3 is the specimen holder structural representation of the embodiment of the invention 1;
Fig. 4 is the antinose-dive leg structural representation of the embodiment of the invention 1;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the vertical view of Fig. 4;
Wherein, 1-casing; The 2-specimen holder; The 3-antinose-dive leg; The 4-hole; The E0-solar radiation energy; E1-tank surface reflected energy; The heat energy that the E2-tank surface is scattered and disappeared to environmental radiation; The E3-tank wall also is that this device is used to strengthen the part that thermal effect is utilized to box house heat radiation energy.
Embodiment
Mode through embodiment further specifies the inventive method below, but does not therefore limit the present invention in the described scope of embodiments.
Embodiment 1
The integrity of check test device appearance and structure and proofreaied and correct the humiture registering instrument at first; The transducer arrangements of humiture registering instrument on specimen holder, is write down the variation of humiture in 24 hours test casings, the derived record data; The homogeneity of humiture in the observation experiment casing; Synchronization each point temperature difference is less than 3 degree, and the relative humidity difference shows that less than 5% the test casing is qualified.The electronic product sample that is tried is fixed on the specimen holder with nylon wire (rope), places the test casing, answer sample and case sidewall, case top and the case on the warranty test frame at the bottom of distance all greater than 10cm, begin to test.
Regularly outward appearance, the performance to test specimen detects, and log.Also should regularly derive preservation to the humiture data in the test casing of test data sheet, so that carry out final interpretation of result.
Electric power connector physical environment accelerated test: quantity per sample and size; Design and made the test casing of a 0.8m * 1.0m * 0.3m by the inventive method; Certain type metal shell electric power connector is carried out the Natural Environmental Test in 1 year by a definite date in the environment of Hainan, simultaneously also this type electric power connector has been carried out exposure test under the canopy in 1 year by a definite date in 96 hours neutral salt spray and Hainan environment in laboratory environment.3 kinds of comparison of test results to sample of the same race; Sample appearance is not seen obvious corrosion behind the laboratory examination neutral salt spray; Significant change does not also appear in contact resistance, and the obvious corrosion of shell has all appearred in exposure under Natural Environmental Test in the casing and the canopy, the phenomenon that contact resistance increases.According to the Natural Environmental Test sample appearance Changing Pattern in exposed sample under the canopy and the casing; Basically be consistent; The time phase that cosmetic variation just occurs is different, and the Natural Environmental Test sample appearance rusting grade in the casing just reaches the level when exposing 1 year under the canopy during half a year.In the time of 1 year, from the rate of change of this type connector sample contact resistance, the Natural Environmental Test in the casing is to expose 2.82 times of result under the canopy.
Claims (8)
1. a test unit that is used for the natural environment of electronic product test method comprises casing (1), specimen holder (2) and antinose-dive leg (3), it is characterized in that: said specimen holder (2) is arranged in the said casing (1); Said casing (1) is arranged on the last plane of antinose-dive leg (3); The last plane and the surface level of said antinose-dive leg (3) form an angle; The bottom opening (4) of said casing (1), the equal spray black paint of the inner and outer wall of said casing (1); The distance of the sample on the said specimen holder (2) and top, bottom and the sidewall of casing is all greater than 10cm.
2. the test unit that is used for the natural environment of electronic product test method according to claim 2; It is characterized in that: the framework of said casing (1) adopts aluminium alloy extrusions to be welded; Six are adopted aluminium alloy sheets to cover, wherein one side be can be for convenience detach syndeton.
3. the test unit that is used for the natural environment of electronic product test method according to claim 1 and 2 is characterized in that: said black paint is the fluororesin sub-gloss varnish; Said black paint adopts spray gun to carry out integral spray.
4. according to the test unit that is used for the natural environment of electronic product test method described in the claim 3, it is characterized in that: the last plane of said antinose-dive leg (3) becomes 5 degree angles with surface level; The least significant end on the last plane of said antinose-dive leg (3) is not less than 100cm apart from the height on ground.
5. according to the test unit that is used for the natural environment of electronic product test method described in the claim 4, it is characterized in that: said specimen holder also is provided with the humiture registering instrument on (2).
6. according to the test unit that is used for the natural environment of electronic product test method described in claim 1 or 2, it is characterized in that: said specimen holder also is provided with the humiture registering instrument on (2).
7. according to the test unit that is used for the natural environment of electronic product test method described in the claim 3, it is characterized in that: said specimen holder also is provided with the humiture registering instrument on (2).
8. according to the test unit that is used for the natural environment of electronic product test method described in claim 1 or 2, it is characterized in that: the last plane of said antinose-dive leg (3) becomes 5 degree angles with surface level; The least significant end on the last plane of said antinose-dive leg (3) is not less than 100cm apart from the height on ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910103170 CN101487789B (en) | 2009-02-11 | 2009-02-11 | Test method and apparatus for natural environment of electronic product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910103170 CN101487789B (en) | 2009-02-11 | 2009-02-11 | Test method and apparatus for natural environment of electronic product |
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| CN101487789A CN101487789A (en) | 2009-07-22 |
| CN101487789B true CN101487789B (en) | 2012-05-09 |
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| CN 200910103170 Expired - Fee Related CN101487789B (en) | 2009-02-11 | 2009-02-11 | Test method and apparatus for natural environment of electronic product |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104614303A (en) * | 2015-01-15 | 2015-05-13 | 中国电器科学研究院有限公司 | Method for evaluating weather resistance of automotive interior part by adopting sun-tracking condensation accelerated exposure test |
| CN105403474B (en) * | 2015-10-29 | 2018-05-11 | 中国兵器工业第五九研究所 | A kind of composite solidpropellant natural acceleration test device and method |
| CN109580465A (en) * | 2018-12-12 | 2019-04-05 | 中国兵器工业第五九研究所 | A kind of natural environment acceleration test apparatus and its application method for strengthening photo-thermal effect |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1479088A (en) * | 2002-08-29 | 2004-03-03 | 重庆工学院 | Suntracing reflection condensing condensing solarization experimental machine and used solar light tracing method |
| CN2716831Y (en) * | 2004-03-17 | 2005-08-10 | 中国人民解放军空军装备研究院航空装备研究所 | Multifunctional salt spray corrosion test box |
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2009
- 2009-02-11 CN CN 200910103170 patent/CN101487789B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1479088A (en) * | 2002-08-29 | 2004-03-03 | 重庆工学院 | Suntracing reflection condensing condensing solarization experimental machine and used solar light tracing method |
| CN2716831Y (en) * | 2004-03-17 | 2005-08-10 | 中国人民解放军空军装备研究院航空装备研究所 | Multifunctional salt spray corrosion test box |
Non-Patent Citations (2)
| Title |
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| 王忠.黑箱体加速大气暴露试验的相关性与加速性.《第四届电子产品可靠性与环境试验技术经验交流会》.2003,68-74. * |
| 颜景莲等.汽车用高分子材料的老化测试技术及进展.《汽车工艺与材料》.2004,(第11期),29-32. * |
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| CN101487789A (en) | 2009-07-22 |
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