CN102974407A - Unsaturated high-pressure accelerated ageing test box - Google Patents
Unsaturated high-pressure accelerated ageing test box Download PDFInfo
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- CN102974407A CN102974407A CN 201210502086 CN201210502086A CN102974407A CN 102974407 A CN102974407 A CN 102974407A CN 201210502086 CN201210502086 CN 201210502086 CN 201210502086 A CN201210502086 A CN 201210502086A CN 102974407 A CN102974407 A CN 102974407A
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Abstract
The invention belongs to the technical field of testing equipment and in particular relates an unsaturated high-pressure accelerated ageing test box. The high-pressure accelerated ageing test box comprises a machine case, wherein the machine case comprises a case door, a machine case main body and an inner case main body, wherein a heater, a humidifier, a temperature sensor, a humidity sensor, a pressure sensor, a water supply and drainage hole and an automatic water compensating system which are intelligently controlled by a micro computer control system are arranged in the inner case main body; the water supply and drainage hole is connected with the automatic water compensating system; and the inner case main body is further connected with an air supplanting unit. Compared with the prior art, the unsaturated high-pressure accelerated ageing test box intelligently and quickly generates unsaturated water steam through the micro computer control system to change the environment (humidity, temperature and pressure) in the inner case main body to be a very harsh environment for carrying out a high-temperature, high-humidity and high-pressure accelerated ageing life test, so that test time for the product is greatly shortened, the performances are good and reliable, and good functions on testing the accelerated ageing life and monitoring the quality of the product are achieved.
Description
Technical field
The invention belongs to the checkout equipment technical field, relate in particular to a kind of unsaturation high pressure accelerated aging test case that can accelerate the measured object aging speed.
Background technology
When industrial production, generally after production creates, detect, the performance that detects product up to standard is only good product, just allows to deliver goods to the client or sell.In the prior art, conventional degradation speed is slow, and the cycle is longer, and it is larger to carry out the equipment volume of degradation, and operating efficiency is lower, and test effect is good not, can affect the judgement to product quality.
Accelerated aging test is used the stress (as: temperature) higher than general environment and working stress (imposing on the voltage, load of product etc.), regularly be carried on the tester, purpose is the design weakness of excavating the product that the development and Design that makes new advances goes out, and the engineer who is responsible for design and development can be assessed for this weakness that is exposed out, under the situation of necessity, can further improve exactly this weakness on design and processing procedure, and then the reliability of improving product.For example, in order to investigate and analyse abrasion that electronic devices and components, machine components when occur and the problem in service life, which type of shape the fault distribution function in service life is, and analyzes test that reason that crash rate rises carries out etc.
But along with the raising of semiconductor reliability, at present large multiple semiconductor devices can bear long-term THB test and can not produce inefficacy, the testing time that therefore is used for determining end product quality also corresponding increased many.
In view of this, necessaryly provide a kind of unsaturation high pressure accelerated aging test case that can accelerate the measured object aging speed, this chamber can produce the unsaturated water steam moisture rapidly by intelligence control system, temperature, pressure, product is carried out high temperature, high humidity, the accelerating aging test environment of high pressure, apply very harsh test environment to product, and the testing time to product is short, use this testing of equipment to be equivalent to 250 hours test results of common test environment in 1 hour, functional reliable, to the test of expedite product aging life-span, good effect is played in the monitoring of product quality.
Summary of the invention
One of purpose of the present invention is: for the deficiencies in the prior art, and provide a kind of unsaturation high pressure accelerated aging test case that can accelerate the measured object aging speed, this chamber can produce the unsaturated water steam moisture rapidly by intelligence control system, temperature, pressure, product is carried out high temperature, high humidity, the accelerating aging test environment of high pressure, apply very harsh test environment to product, and the testing time to product is short, use this testing of equipment to be equivalent to 250 hours test results of common test environment in 1 hour, functional reliable, to the test of expedite product aging life-span, good effect is played in the monitoring of product quality.
To achieve these goals, the present invention adopts following technical scheme: a kind of unsaturation high pressure accelerated aging test case, comprise cabinet, described cabinet comprises chamber door, chassis body and interior box main body, be provided with handle on the described chamber door, be provided with heater, humidifier, temperature sensor, humidity sensor, pressure sensor, plumbing mouth and automatic water replenishing system by the control of microcomputer control system intelligence in the described interior box main body, described plumbing mouth be connected automatic water replenishing system and connect, described interior box main body also is connected with making-up air device.
As a kind of improvement of unsaturation high pressure accelerated aging test case of the present invention, described interior box main body is provided with pressure-bearing inner liner, and described pressure-bearing inner liner inside is provided with fortune wind fan blade, and described fortune wind fan blade is connected with the fortune wind motor by the sealed magnetic fluid.
A kind of improvement as unsaturation high pressure accelerated aging test case of the present invention, the opening part of described pressure-bearing inner liner is provided with the pressure-bearing chamber door, be provided with the refractory seals adhesive tape between described pressure-bearing inner liner and the described pressure-bearing chamber door, described pressure-bearing chamber door is provided with anti-scald door closure, be provided with explosion-proof door lock on the described anti-scald door closure, be hinged with the pressure-bearing crossbeam on the described cabinet, described pressure-bearing crossbeam is across described pressure-bearing chamber door, and an end of described pressure-bearing crossbeam is provided with eccentric mechanical door lock.
As a kind of improvement of unsaturation high pressure accelerated aging test case of the present invention, be provided with the first adiabator layer between described chassis body and the described interior box main body, the inner surface of described chamber door is provided with the second adiabator layer.
As a kind of improvement of unsaturation high pressure accelerated aging test case of the present invention, the edge of described chamber door is provided with encapsulant layer.
A kind of improvement as unsaturation high pressure accelerated aging test case of the present invention, the right side of described chamber door is provided with control panel, is provided with touch screen control system, end indicator lamp, alarm, mechanical pressure gauge, action button, power switch, USB interface and manual relief valve on the described control panel.
As a kind of improvement of unsaturation high pressure accelerated aging test case of the present invention, the below of described control panel is provided with storage tank.
A kind of improvement as unsaturation high pressure accelerated aging test case of the present invention, described automatic water replenishing system comprises automatic makeup water pump, moisturizing magnetic valve and drip tray, described moisturizing magnetic valve is arranged on the pipeline that connects automatic makeup water pump and drip tray, and described osculum is arranged at the back side of chassis body.
A kind of improvement as unsaturation high pressure accelerated aging test case of the present invention also is provided with drying system, air bleeding valve, vavuum pump and over-temperature protection device in the described interior box main body.
As a kind of improvement of unsaturation high pressure accelerated aging test case of the present invention, described interior box main body also is connected with warning device.
With respect to prior art, the present invention produces unsaturated water steam rapidly by microcomputer control system intelligence, environment in the interior box main body (humidity, temperature and pressure) is become very harsh, thereby product is carried out the accelerating aging test environment of high temperature, high humidity, high pressure, thereby greatly shorten the testing time to product, use the present invention to test 250 hours test results that were equivalent to use the common test environment in 1 hour, functional reliable, to the test of expedite product aging life-span and all can play good effect to the monitoring of product quality.
Description of drawings
Fig. 1 is stereogram of the present invention.
Fig. 2 is front view of the present invention.
Fig. 3 is internal structure schematic diagram of the present invention.
Fig. 4 is the structural representation of interior box main body of the present invention.
Wherein, box main body in the 1-, 2-fortune wind fan blade, 3-transports wind motor, 4-sealed magnetic fluid, 6-humidifier, 8-handle, the eccentric mechanical door lock of 9-, 10-pressure-bearing crossbeam, the anti-scald door closure of 11-, 12-touch screen control system, 13-mechanical pressure gauge, the 14-action button, the manual relief valve of 15-, 16-storage tank, 17-heater, 18-pressure-bearing chamber door, the explosion-proof door lock of 19-, 20-refractory seals adhesive tape, 21-chamber door, the 22-chassis body, 23-pressure-bearing inner liner, 25-control panel.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention and useful technique effect thereof are elaborated, but the present invention is not limited to this.
As shown in Figures 1 to 4, a kind of unsaturation high pressure accelerated aging test case provided by the invention, comprise cabinet, cabinet comprises chamber door 21, chassis body 22 and interior box main body 1, be provided with handle 8 on the chamber door 21, be provided with heater 17, humidifier 6, temperature sensor, humidity sensor, pressure sensor, plumbing mouth and automatic water replenishing system by the control of microcomputer control system intelligence in the interior box main body 1, the plumbing mouth is connected with automatic water replenishing system, and interior box main body 1 also is connected with outside controlled making-up air device.Wherein, heater 17 adopts the stainless steel electric heater to add the mode of hot-air, and humidifier 6 adopts the water pond steam humidification system.Automatic water replenishing system can carry out test so that the present invention has full-automatic function of replenishing water level constantly.
Wherein, interior box main body 1 is provided with pressure-bearing inner liner 23, and pressure-bearing inner liner 23 inside are provided with fortune wind fan blade 2, and fortune wind fan blade 2 is connected with fortune wind motor 3 by sealed magnetic fluid 4.Sealed magnetic fluid 4 axle center drive 2 rotations of fortune wind fan blade, and Main Function is that 23 li humitures of pressure-bearing inner liner are formed convection current, reaches the requirement of high evenness.It is to carry out tonifying Qi by the controlled making-up air device in outside that air pressure in the chamber of the present invention forms, and reaches needed air pressure.
The opening part of pressure-bearing inner liner 23 is provided with pressure-bearing chamber door 18, be provided with refractory seals adhesive tape 20 between pressure-bearing inner liner 23 and the pressure-bearing chamber door 18, pressure-bearing chamber door 18 is provided with anti-scald door closure 11, be provided with explosion-proof door lock 19 on the anti-scald door closure 11, be hinged with pressure-bearing crossbeam 10 on the cabinet, pressure-bearing crossbeam 10 is across pressure-bearing chamber door 18, and an end of pressure-bearing crossbeam 10 is provided with a mechanical eccentric and can be locked to eccentric mechanical door lock 9 on the chassis body 22.Anti-scald door closure 11 can prevent that operating personnel from contacting scald, the silica gel strip that refractory seals adhesive tape 20 is formed in one, and its steam that can bear HTHP leaks, and air tightness is good, and long service life.Pressure-bearing inner liner 23 can prevent that the frosting of sample from moist, having improved the reliability of test.Temperature in the process of the test, humidity and pressure are to show control by the numerical value that really reads related sensor, rather than the saturated vapor pressure table by humidity and temperature calculates, and therefore can really grasp actual process of the test.
Be provided with the first adiabator layer between chassis body 22 and the interior box main body 1, the inner surface of chamber door 21 is provided with the second adiabator layer.The surface spraying of chassis body 22 has steel plate baking vanish layer, and the material of interior box main body 1 is stainless steel, and the material of the first adiabator layer is super glass wool, and the material of the second adiabator layer is glass fibre.
The edge of chamber door 21 is provided with encapsulant layer.Chamber door 21 is set to the monolithic door, and open on a left side, and handle is at right-hand side, when the pressure in the interior box main body 1 is larger, encapsulant layer has back-pressure makes chamber door 21 be combined more closely with chassis body 22, can prolong the service life of encapsulant layer, also plays better heat insulation effect.
The right side of chamber door 21 is provided with control panel 25, is provided with touch screen control system 12 on the control panel 25, finishes the manual relief valve 15 that indicator lamp, alarm, mechanical pressure gauge 13, action button 14, power switch, USB interface and emergency decompression are used.On touch screen control system 12, can freely set saturated humidity (100%) and unsaturation humidity (85% or 75%).Manually relief valve 15 needing to be mainly used in emergency decompression or to have a power failure can not electronic pressure release the time.
The below of control panel 25 is provided with storage tank 16.
Automatic water replenishing system comprises automatic makeup water pump, moisturizing magnetic valve and drip tray, and the moisturizing magnetic valve is arranged on the pipeline that connects automatic makeup water pump and drip tray, is provided with osculum on the drip tray, states the back side that osculum is arranged at chassis body.
Also be provided with drying system, air bleeding valve, vavuum pump and over-temperature protection device in the interior box main body 1.Drying system adopts electrothermal drying or vacuum drying, guarantees to be in drying regime after the sampling test.During off-test, chamber meeting releasing pressure automatically and vacuum drying or electrothermal drying.Vavuum pump can be extracted the air in the interior box main body 1 out when chamber brings into operation, to improve the repeatability of pressure stability and result of the test.
Interior box main body 1 also is connected with warning device.When temperature anomaly heated up, over-temperature protection device can be activated, and informed with continuous alarming sound, directly cut off the electricity supply simultaneously.When the equipment lack of water, warning device can be informed with continuous alarming sound.The equipment lack of water is in two kinds of situation: a kind of is that machine just starts, and the working time does not begin timing, and not enough with regard to water level, this kind situation machine can't start; Another kind is in the course of work, and water level is not enough, and machine can pipe and warn and cut-out heater 17 this moment, and temperature can slowly descend, but the working time also can continue to carry out.At this moment, can water be injected storage tank 16 by water filling port by automatic water replenishing system, working procedure can continue to carry out automatically.
During use, open first the door closure that is positioned at storage tank 16 fronts water is injected storage tank 16 (distilled water that suggestion is used distilled water or processed through infiltration) till the location, then open chamber door 21 and pressure-bearing chamber door 18 and put into wish test article.Then, turn on the power switch humidifier 6 beginning preheatings.To need 30 to 35 minutes just can reach required operating pressure preheating time when using for the first time.Then set operating temperature between 105-132 ℃, set humidity between 75% ~ 100%, setting pressure is at 0.5 ~ 2kg/cm
2Between, and set the working time, also need set drying time when drying such as need.
Then shut gently pressure-bearing chamber door 18, and locking chamber door 21, working procedure will start automatically when interior box main body 1 arrives preset temperature.
In the whole course of work, whole process will have various indications by the microcomputer control system Based Intelligent Control on the screen, show every step.After work is finished, to finish lantern festival and light, the expression process of the test finishes.Open pressure-bearing chamber door 18 front needs and confirm that first the pressure in the interior box main body 1 is 0kg/cm2.Then turn off power switch.Air bleeding valve meeting automatic vent in the interior box main body 1 is until interior box main body 1 is 0kg/cm2.Do not arrive 0kg/cm2 if interior box main body 1 shows, open the residual compression that manual pressure release row 15 removes interior box main body 1, until the pressure of interior box main body 1 is 0kg/cm2, then open pressure-bearing chamber door 18, take out the test article.
Technical parameter of the present invention is described below: temperature controlling range is 105.0～142.9 ℃, the humidity control range is 75.0～100%RH, pressure control range is 0.020～0.196MPa (meter pressure), the humiture fluctuation range be ± 0.5 ℃/± 3%RH, temperature homogeneity be ± 0.5 ℃ (when 100%RH) or ± 0.7 ℃ (when 75%RH).Heat time heating time: from normal temperature to 142.9 ℃ needs about 45 minutes
Approximately need 35 minute from 0～0.196MPa (pressure gauge) pressing time, temperature fall time (when environment temperature for+23 ℃ the time without style): can drop to 85.0 ℃/85%RH from 142.9 ℃/75%RH with interior in about 120 minutes, the step-down time: step-down needs about 15 minutes automatically, and manually step-down needs about 10 minutes.
In a word, the present invention produces unsaturated water steam rapidly by microcomputer control system intelligence, environment in the interior box main body (humidity, temperature and pressure) is become very harsh, thereby product is carried out the accelerating aging test environment of high temperature, high humidity, high pressure, thereby greatly shorten the testing time to product, use the present invention to test 250 hours test results that were equivalent to use the common test environment in 1 hour, functional reliable, to the test of expedite product aging life-span and all can play good effect to the monitoring of product quality.Adopt chamber of the present invention that sample is tested, product is come into the market maturely, with the satisfaction that improves client, reduce protect solid with cost of serving, improve competitive advantage, and make the design R﹠D costs spend minimum.
The according to the above description announcement of book and guidance, those skilled in the art in the invention can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the specific embodiment that discloses and describe above the present invention is not limited to also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition, although used some specific terms in this specification, these terms do not consist of any restriction to the present invention just for convenience of description.
Claims (10)
1. unsaturation high pressure accelerated aging test case, comprise cabinet, described cabinet comprises chamber door, chassis body and interior box main body, be provided with handle on the described chamber door, it is characterized in that: be provided with heater, humidifier, temperature sensor, humidity sensor, pressure sensor, plumbing mouth and automatic water replenishing system by the control of microcomputer control system intelligence in the described interior box main body, described plumbing mouth be connected automatic water replenishing system and connect, described interior box main body also is connected with making-up air device.
2. unsaturation high pressure accelerated aging test case according to claim 1, it is characterized in that: described interior box main body is provided with pressure-bearing inner liner, described pressure-bearing inner liner inside is provided with fortune wind fan blade, described fortune wind fan blade by the sealed magnetic fluid with transport wind motor and be connected.
3. unsaturation high pressure accelerated aging test case according to claim 1, it is characterized in that: the opening part of described pressure-bearing inner liner is provided with the pressure-bearing chamber door, be provided with the refractory seals adhesive tape between described pressure-bearing inner liner and the described pressure-bearing chamber door, described pressure-bearing chamber door is provided with anti-scald door closure, be provided with explosion-proof door lock on the described anti-scald door closure, be hinged with the pressure-bearing crossbeam on the described cabinet, described pressure-bearing crossbeam is across described pressure-bearing chamber door, and an end of described pressure-bearing crossbeam is provided with eccentric mechanical door lock.
4. unsaturation high pressure accelerated aging test case according to claim 1, it is characterized in that: be provided with the first adiabator layer between described chassis body and the described interior box main body, the inner surface of described chamber door is provided with the second adiabator layer.
5. unsaturation high pressure accelerated aging test case according to claim 4, it is characterized in that: the edge of described chamber door is provided with encapsulant layer.
6. unsaturation high pressure accelerated aging test case according to claim 1, it is characterized in that: the right side of described chamber door is provided with control panel, is provided with touch screen control system, end indicator lamp, alarm, mechanical pressure gauge, action button, power switch, USB interface and manual relief valve on the described control panel.
7. unsaturation high pressure accelerated aging test case according to claim 6, it is characterized in that: the below of described control panel is provided with storage tank.
8. unsaturation high pressure accelerated aging test case according to claim 1, it is characterized in that: described automatic water replenishing system comprises automatic makeup water pump, moisturizing magnetic valve and drip tray, described moisturizing magnetic valve is arranged on the pipeline that connects automatic makeup water pump and drip tray, and described osculum is arranged at the back side of chassis body.
9. unsaturation high pressure accelerated aging test case according to claim 1 is characterized in that: also be provided with drying system, air bleeding valve, vavuum pump and over-temperature protection device in the described interior box main body.
10. unsaturation high pressure accelerated aging test case according to claim 1, it is characterized in that: described interior box main body also is connected with warning device.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103344862A (en) * | 2013-07-05 | 2013-10-09 | 北京航空航天大学 | Electronic device comprehensive environment accelerated storage testing device |
| CN103913412A (en) * | 2014-04-22 | 2014-07-09 | 苏州华周胶带有限公司 | Tape vacuum aging box |
| CN104345756A (en) * | 2014-11-04 | 2015-02-11 | 宁波星箭航天机械有限公司 | High-temperature high-pressure vacuumizing test device and operating method thereof |
| CN104849677A (en) * | 2014-02-17 | 2015-08-19 | 浙江云时代光电科技有限公司 | Method for testing service life of LED lamp |
| CN104971786A (en) * | 2015-06-10 | 2015-10-14 | 天津航天瑞莱科技有限公司 | High atmospheric pressure environmental test chamber |
| CN104345756B (en) * | 2014-11-04 | 2017-01-04 | 宁波星箭航天机械有限公司 | High Temperature High Pressure evacuation assay device and operational approach thereof |
| CN106950169A (en) * | 2017-05-22 | 2017-07-14 | 广东艾思荔检测仪器有限公司 | High pressure accelerated aging test case |
| CN107300938A (en) * | 2017-08-17 | 2017-10-27 | 浙江理工大学 | A kind of multifunctional comprehensive senile experiment case |
| WO2018077222A1 (en) * | 2016-10-31 | 2018-05-03 | 深圳市太赫兹科技创新研究院 | Terahertz experiment environment monitoring system |
| CN108489638A (en) * | 2018-03-30 | 2018-09-04 | 深圳市光子传感技术有限公司 | temperature and pressure measuring system |
| CN110222958A (en) * | 2019-05-22 | 2019-09-10 | 天津大学 | A kind of lithium battery fire risk assessment system and method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344862A (en) * | 2013-07-05 | 2013-10-09 | 北京航空航天大学 | Electronic device comprehensive environment accelerated storage testing device |
| CN103344862B (en) * | 2013-07-05 | 2016-08-10 | 北京航空航天大学 | A kind of electronic equipment integrated environment accelerated storage test device |
| CN104849677A (en) * | 2014-02-17 | 2015-08-19 | 浙江云时代光电科技有限公司 | Method for testing service life of LED lamp |
| CN103913412A (en) * | 2014-04-22 | 2014-07-09 | 苏州华周胶带有限公司 | Tape vacuum aging box |
| CN104345756A (en) * | 2014-11-04 | 2015-02-11 | 宁波星箭航天机械有限公司 | High-temperature high-pressure vacuumizing test device and operating method thereof |
| CN104345756B (en) * | 2014-11-04 | 2017-01-04 | 宁波星箭航天机械有限公司 | High Temperature High Pressure evacuation assay device and operational approach thereof |
| CN104971786A (en) * | 2015-06-10 | 2015-10-14 | 天津航天瑞莱科技有限公司 | High atmospheric pressure environmental test chamber |
| WO2018077222A1 (en) * | 2016-10-31 | 2018-05-03 | 深圳市太赫兹科技创新研究院 | Terahertz experiment environment monitoring system |
| CN106950169A (en) * | 2017-05-22 | 2017-07-14 | 广东艾思荔检测仪器有限公司 | High pressure accelerated aging test case |
| CN107300938A (en) * | 2017-08-17 | 2017-10-27 | 浙江理工大学 | A kind of multifunctional comprehensive senile experiment case |
| CN108489638A (en) * | 2018-03-30 | 2018-09-04 | 深圳市光子传感技术有限公司 | temperature and pressure measuring system |
| CN110222958A (en) * | 2019-05-22 | 2019-09-10 | 天津大学 | A kind of lithium battery fire risk assessment system and method |
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Application publication date: 20130320 |