CN104043488B - Test device - Google Patents
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- CN104043488B CN104043488B CN201310075895.0A CN201310075895A CN104043488B CN 104043488 B CN104043488 B CN 104043488B CN 201310075895 A CN201310075895 A CN 201310075895A CN 104043488 B CN104043488 B CN 104043488B
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Abstract
The present invention provides a kind of test device, and including test cabinet, test cabinet has the sealing test space placing test product；Rainfall control system, for controlling the rainfall in the test space, so that the rainfall in the test space reaches to preset rainfall size；Temperature control system, for controlling the temperature in the test space, so that the temperature in the test space reaches preset temperature size；Relative humidity control system, for utilize equal-enthalpy humidifying mode to the humidity controlling in the test space so that the humidity in the test space reach preset humidity size；Controller, compensates system with rainfall control system, temperature control system and relative humidity and is connected, and for according to the ambient parameter in the test space, controls rainfall control system, temperature control system and relative humidity and compensates system work.The test device that the present embodiment provides can simulate hot and humid rainy climate environment, thinks that product test provides real work test environment.
Description
Technical field
The present embodiments relate to product test technology, particularly relate to a kind of hot and humid rainy to working in
Product under weather conditions carries out the test device of environmental testing.
Background technology
It is operated in the product of outdoor, such as communication products etc., the most usually can be subject to outdoor
The impact of environment, such as temperature, humidity etc..Therefore, the communication products being operated in outdoor are carried out ring
Border test is to ensure that the important guarantee that communication products normally work, wherein said environmental testing refer to
The test under the outdoor environmental conditions of simulation, product carried out.
At present, communication products are carried out environmental testing, mainly carry out high temperature, high humidity, waterproof and
High/low temperature is tested, when carrying out these tests, it is common that in corresponding high temperature side test-run a machine, high humidity test
Carrying out in machine, waterproof test machine and high/low temperature test machine, these tests can well react communication
Product situation under these conditions, can provide by reliably working under these conditions for product
Important guarantee.But, these environmental testings existing are typically for the survey under the conditions of single environment
Examination；Meanwhile, existing when carrying out hot and humid test, it is impossible to simulate temperature and change rapidly and maintain
The environment of humidity relative constancy, therefore, in actual application, such as Tropical rain forest etc. are hot and humid rainy
The communication products of the work under weather conditions, still there will be product failure problem, and at product failure
After problem occurs, it is impossible to reproduction, i.e. cannot under test conditions failure phenomenon be restored, thus
The reason causing product failure cannot determine, product Problem of Failure under this environmental condition is still deposited
, the hidden danger great to the properly functioning generation of product.
To sum up, in the existing environmental testing to communication products, each test equipment is normally based on single ring
Border is tested, the specific works process to the communication products that product works under the weather conditions such as Tropical rain forest
Cannot be carried out test, cause communication products that Problem of Failure usually occurs in real work, and cannot be right
The Problem of Failure that product occurs is reduced.
Summary of the invention
The embodiment of the present invention provides one test device, and can overcome cannot be right present in existing environmental testing
Product carries out the problem of Validity Test in tropical rainy climate conditional operation process, can exist by effectively analog equipment
Tropical rainy climate condition is to realize the test to product.
The embodiment of the present invention provides one test device, including:
Test cabinet, described test cabinet has the sealing test space placing test product；
Rainfall control system, described rainfall control system is used for the rainfall controlling in the described test space, with
The rainfall in the described test space is made to reach to preset rainfall size；
Temperature control system, described temperature control system is used for the temperature controlling in the described test space, with
The temperature in the described test space is made to reach preset temperature size；
Relative humidity compensates system, and described relative humidity compensates system and is used for utilizing equal-enthalpy humidifying mode to control
Make the humidity in the described test space, so that the humidity in the described test space reaches to preset humidity size；
Controller, described controller and described rainfall control system, temperature control system and relative humidity
Compensation system connects, and for according to the ambient parameter in the described test space, controls described rainfall and controls system
System, temperature control system and relative humidity compensate system work, and wherein, described ambient parameter includes
Rainfall in the test space, temperature and humidity.
In above-mentioned test device, described relative humidity compensates system and includes air compressor, equal-enthalpy humidifying
Case and microcontroller, wherein:
Described equal-enthalpy humidifying case includes humidifying casing, is provided with for for humidifying casing in described humidification casing
Internal water carries out the heater heated, and the bottom of described humidification casing is provided with and described air compressor
The air inlet connected, the top of described humidification casing is provided with the gas outlet being connected with described test cabinet；
Described microcontroller, is used for according to the temperature and humidity in the described test space, and adds according to constant enthalpy
Wet function controls the work of described heater, thinks that the described test space provides the air of corresponding humidity, makes
The humidity of the described interior space reaches to preset humidity size.
In above-mentioned test device, it is connected by gas pipeline between described compressor with described humidification casing,
And it being provided with pressure regulation relief valve on described gas pipeline, described pressure regulation relief valve will be for entering described humidification
Air pressure pressure release in case is to being sized.
In above-mentioned test device, described equal-enthalpy humidifying case is two, and said two equal-enthalpy humidifying case it
Between isolated by thermal baffle；
Said two equal-enthalpy humidifying case leads to the first gas pipeline and the second gas pipeline and described air pressure respectively
Contracting machine connects, and be respectively arranged with on described first gas pipeline and the second gas pipeline the first control valve and
Second control valve；
Said two equal-enthalpy humidifying case is respectively by the 3rd gas pipeline and the 4th gas pipeline and described test
Room connects, and is respectively arranged with the 3rd control valve and the on described 3rd gas pipeline and the 4th gas pipeline
Four control valves；
Described microcontroller controls with described first control valve, the second control valve, the 3rd control valve and the 4th
Valve connects, and is used for controlling described first control valve, the second control valve, the 3rd control valve and the 4th control valve
Work.
In above-mentioned test device, in described equal-enthalpy humidifying case, it is additionally provided with temperature sensor, described temperature
Sensor is connected with described microcontroller.
In above-mentioned test device, the water of described equal-enthalpy humidifying box house is provided with the punctulate steel of tool
Plate.
In above-mentioned test device, described rainfall control system includes nozzle and rainfall controller, described
Nozzle includes atomizer and drenches with rain nozzle, described atomizer and drench with rain nozzle respectively by different confessions
Waterpipe is connected on supply equipment；
Described rainfall controller is for controlling output and the pressure of supply water of each water supply line.
In above-mentioned test device, described nozzle includes support, and described support is provided with around described support
The rotating disk rotated, described rotating disk is provided with atomization water supply line and water supply line of drenching with rain；
The multiple described atomizer connected with described atomization water supply line it is provided with on described rotating disk, and
Be connected with described water supply line of drenching with rain multiple described in drench with rain nozzle, and described atomizer and nozzle of drenching with rain
It is disposed alternately on described rotating disk；
The driving means driving described rotating disk to rotate, described driving means and institute it is additionally provided with on described rotating disk
State rainfall controller to connect, be used for controlling described turntable rotation.
In above-mentioned test device, multiple described in drench with rain nozzle and atomizer is that plum blossom-shaped is distributed in described
On rotating disk.
In above-mentioned test device, described atomization water supply line and described in drench with rain and be respectively provided with on water supply line
Rainy adjustable valve；
It is additionally provided with pressure regulator valve on described atomization water supply line.
In above-mentioned test device, described temperature control system is cold-hot wind feed system.
In above-mentioned test device, in the described test space, it is provided with rain collection device, temperature sensor
And humidity sensor, be connected with described controller respectively, for gather rainfall in the described test space,
Temperature and humidity.
In above-mentioned test device, described test cabinet is provided with and is electrically connected with extraneous power supply for testing product
The power interface connect.
The test device that the present embodiment provides, can pass through rainfall control system, temperature control system and phase
Humidity is compensated the hot and humid rainy environment of system simulation so that test product can be in the environment of this simulation
Carry out performance test, thus the product test at hot and humid rainy climate environment can be realized.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that under,
Accompanying drawing during face describes is some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the test device that Fig. 1 provides for the embodiment of the present invention one；
The structural representation of the test device that Fig. 2 A provides for the embodiment of the present invention two；
Fig. 2 B is the structural representation that in the embodiment of the present invention, relative humidity compensates system；
Fig. 3 A is the theory structure schematic diagram of rainfall control system in the embodiment of the present invention；
Fig. 3 B is the structural representation of the nozzle in the embodiment of the present invention in rainfall control system.
Detailed description of the invention
The test device that the embodiment of the present invention provides is for tropical rainy climates such as hot and humid rainy environment
Under the conditions of product test and propose, hot and humid rainy amblent air temperature can be simulated, carry out for product
Environmental testing provides more accurate test environment, it can be ensured that product is at hot and humid rainy amblent air temperature bar
The reliability and stability worked under part.With instantiation, technical solution of the present invention will be done specifically below
Bright.
The structural representation of the test device that Fig. 1 provides for the embodiment of the present invention one.As it is shown in figure 1, this
Embodiment test device can include test cabinet 1, controller 2, rainfall control system 3, temperature control system
4 and relative humidity compensate system 5, wherein, this test cabinet 1 has the test space 11 of a sealing,
For placing test product, testing product in the present embodiment is communication products；Rainfall control system 3 is used for
Control the rainfall in the test space 11, so that the rainfall in the test space 11 reaches to preset rainfall size；
Temperature control system 4 is for controlling the temperature in the test space 11, so that the temperature in this test space 11
Degree reaches preset temperature size；Relative humidity compensates system 5 and is used for utilizing equal-enthalpy humidifying mode to control to survey
Humidity in examination space 11, so that the humidity in this test space 11 reaches to preset humidity size；Control
Device 2 and above-mentioned rainfall control system 3, temperature control system 4 and relative humidity compensate system 5 even
Connect, for according to the ambient parameter in the test space, control rainfall control system 3, temperature control system 4
And relative humidity compensates system 5 and works, described ambient parameter includes the rainfall in the test space, temperature
Degree and humidity.The present embodiment provide test device, can pass through rainfall control system 3, temperature control be
System 4 and relative humidity compensate system 5 to be carried out the temperature in test cabinet, humidity and rainfall ambient parameter
Control, thus simulate hot and humid rainy climate environment, in order to communication products at this climatic environment bar
Working condition under part is tested, and improves reliability that communication products works at this kind of weather conditions and surely
Qualitative.
In the present embodiment, being additionally provided with test product erecting bed A in the test space 11, so, test is produced
Product just can be placed directly on this product erecting bed A and test.The concrete structure of product erecting bed this
Bright embodiment is not particularly limited.
Under the conditions of tropical rainy climate, for the environment of communication products, humidity is almost saturated,
I.e. relative humidity is mostly at more than 90%RH, for the communication products having gas permeable devices, rainfall
When to ensure that the humidity around product reaches more than 90%RH extremely important, product is existing due to design
Repiration lost efficacy, condensation lost efficacy and just occurred in the process.And in the present embodiment, relative humidity is mended
Repay system 5 by utilizing equal-enthalpy humidifying function, can effectively the test space 11 for test cabinet 1 provide stable,
Lasting humidity parameter, such as 100%RH, can effectively simulate the hot and humid rainy environment such as Tropical rain forest
Condition so that test product can work under this environmental condition, thus test product can be simulated truly
Work process under environment, can avoid existing Problem of Failure occur in tropical rainy climate condition；Meanwhile,
After occurring Problem of Failure for product under the conditions of this kind, available the present embodiment device reappears, from
And the reason of product failure can be accurately determined out.
To sum up, the test device that the present embodiment provides, can pass through rainfall control system, temperature control system
And relative humidity compensates the hot and humid rainy environment of system simulation so that test product can be in this simulation
Environment carries out performance test, thus the product test at hot and humid rainy climate environment can be realized.
The structural representation of the test device that Fig. 2 A provides for the embodiment of the present invention two；Fig. 2 B is the present invention
The structural representation of relative humidity control system in embodiment.As shown in Figure 2 A and 2 B, the present embodiment
In, temperature control system 4 concretely cold-hot wind system, by for being passed through uniform temperature in test cabinet 1
Cold wind or the form of hot blast, the temperature in the test space 11 is controlled.Wherein, cold-hot wind system
Unite heat up time can by add hot-air and will add hot-air send into test cabinet realize, lower the temperature time then
Can coordinate to produce cooling air by compressor, condenser and vaporizer to realize, its concrete structure and reality
Existing process is same or like with conventional art, does not repeats them here.
It will be understood by those skilled in the art that described temperature control system 4 is except using cold-hot wind
Outside system, it is possible to use other temperature control modes, such as can add by arranging electricity in the test space 11
The modes such as heated filament, to this embodiment of the present invention and be not particularly limited.
In the present embodiment, as shown in Figure 2 A, it is provided with rain collection device in the above-mentioned test space 11
111, temperature sensor 112 and humidity sensor 113, be connected with controller 2 respectively, is used for gathering survey
Examination space 11 in rainfall, temperature and humidity, so, controller 2 just can according to this rainfall, temperature,
Humidity controls the work of above-mentioned each control system, it is ensured that have default temperature, wet in the test space 11
Degree and rainfall.Wherein, described rain collection device 111, temperature sensor 112 and humidity sensor
113 can use traditional rain collection device, temperature sensor and humidity sensor, real in this present invention
Execute example and be not particularly limited.
In the present embodiment, as shown in Figure 2 A, test cabinet 1 is additionally provided with power interface 12, in order to
Make to test product by this power interface 12 to be connected with extraneous power supply, so, test product test
Time, it is possible in the case of energising, namely test under working condition, thus the work of reality can be simulated
Make scene.
In the present embodiment, as shown in Figure 2 B, described relative humidity compensates system 5 specifically can include air
Compressor 51, equal-enthalpy humidifying case 52 and microcontroller 53, wherein, be provided with use in equal-enthalpy humidifying case 52
Carry out the heater 54 heated in the water within equal-enthalpy humidifying case 52, the bottom of equal-enthalpy humidifying case 52 sets
Being equipped with the air inlet being connected with air compressor 51, the top of equal-enthalpy humidifying case 52 is provided with and test cabinet
1 gas outlet connected；Microcontroller 53 is used for according to the temperature and humidity in the test space 11, and root
Control heater 54 according to equal-enthalpy humidifying function to work, think that the test space 11 provides the sky of corresponding humidity
Gas, makes the humidity of the interior space reach to preset humidity size.Wherein, described microcontroller 53 specifically may be used
By obtaining the temperature and humidity of the test space from master controller 2, equal-enthalpy humidifying function is utilized to calculate
When reaching default humidity, need the temperature of the air that equal-enthalpy humidifying case 52 provides, thus heating can be controlled
Device 54 works, and in providing the air with uniform temperature to provide the test space 11, described has
Uniform temperature, it is substantially present to ensure that the humidity entered in the test space 11 can arrive certain humidity
Value, is 100%RH in the present embodiment.
It will be understood by those skilled in the art that to utilize equal-enthalpy humidifying function to control heater 54 and sky
Air compressor 51 works, and microcontroller 53 also can reach required for controller 2 obtains in the test space 11
The humidity size arrived, this humidity size is also to be obtained by controller 2, so, by equal-enthalpy humidifying function
Just can calculate required supplementary humidity exactly, and work by controlling heater and air compressor,
Supplementary humidity needed for generation.
In the present embodiment, as shown in Figure 2 A, gas is passed through between compressor 51 and equal-enthalpy humidifying case 52
Pipeline connects, and can be provided with pressure regulation relief valve 55 on this gas pipeline, and this pressure regulation relief valve 55 is used for
By the air pressure pressure release in entrance equal-enthalpy humidifying case 52 to being sized, to guarantee that air enters constant enthalpy and adds
Can fully be fully contacted with the water wherein with uniform temperature in wet tank 52 so that enter the test space 11
Air humidity reach required humidity value.
In the present embodiment, as shown in Figure 2 A, the humidity compensating system 5 for improving relative humidity compensates effect
Really, concretely two, above-mentioned equal-enthalpy humidifying case 52, and between two equal-enthalpy humidifying casees 52 by every
Heat shield 521 is isolated；Two equal-enthalpy humidifying casees 52 lead to the first gas pipeline 561 and the second gas tube respectively
Road 562 is connected with air compressor 51, and on the first gas pipeline 561 and the second gas pipeline 562 point
It is not provided with the first control valve 571 and the second control valve 572；Two equal-enthalpy humidifying casees 52 are respectively by the
Three gas pipelines 563 and the 4th gas pipeline 564 are connected with test cabinet 1, and the 3rd gas pipeline 563
Be respectively arranged with the 3rd control valve 573 and the 4th control valve 574 on the 4th gas pipeline 564；Micro-control
Device 53 processed and the first control valve the 571, second control valve the 572, the 3rd control valve 573 and the 4th control valve
574 connect, for controlling first control valve the 571, second control valve 572, the 3rd control valve 573 and the
Four control valves 574 work.So, relative humidity compensate system 5 work time, can be as desired by
Control each control valve, utilize an equal-enthalpy humidifying case or two equal-enthalpy humidifying casees to provide the wettest for test cabinet
The air of degree.
In the present embodiment, the air to equal-enthalpy humidifying case 52 entered for improving air compressor 51 can be with
Water therein is fully contacted, and the first above-mentioned gas pipeline 561 and the second gas pipeline 562 can use curved
Tubular construction, and highest point is higher than the interface position being connected with equal-enthalpy humidifying case 52, to reduce gas at water
Middle bubbling rate；Additionally, distance bottom certain distance position, equal-enthalpy humidifying case 52 the water surface with
Lower position is also provided with having punctulate steel disc 58, so, from the first gas pipeline 561 or the second gas
Body pipeline 562 enters into the air of equal-enthalpy humidifying case 52, and the form of expression in water is air pocket, air pocket
The only air on surface could effectively contact with water, absorbs water and absorbs heat, owing to bubble is too big,
In the middle of air pocket, part gas could sufficiently absorb water saturated when needing the longest and heat absorption is equal with water temperature,
Therefore, by arranging the punctulate steel disc 58 of tool, air pocket can be divided into tiny minute bubbles granule, this
Time minute bubbles 80% and above surface area can be fully contacted with water, accelerate gas moisture absorption and heat absorption
Speed, the move distance being effectively shortened in water and time, it is easy to realize saturated isothermal.
If it will be understood by those skilled in the art that and actual application being not provided with have punctulate steel disc 58, also
Air path in water can be increased realize by increasing the degree of depth of the water in casing, but so
May require that the highest equal-enthalpy humidifying case is the most permissible, meanwhile, the depth of water increases excessive, can increase air inlet
Pressure, increase after pressure, after gas rises to certain altitude, owing to hydraulic pressure reduces, bubble can increase
Simultaneously the movement velocity in water can further speed up, and bubble is difficult to that moisture absorption is saturated, heat absorption is consistent with water temperature,
Cost is the highest, and place is too big, efficiency is the lowest.
In the present embodiment, for guaranteeing that the humidity entering the air of the test space 11 in equal-enthalpy humidifying case 52 reaches
To preset value, in equal-enthalpy humidifying case 52, it is also provided with temperature sensor 522 and humidity sensor 523,
And this temperature sensor 522 and humidity sensor 523 are connected with microcontroller 51.So, microcontroller
Heater and air compressor can be controlled by 51 according to the temperature and humidity in equal-enthalpy humidifying case,
Guarantee to enter the humidity of the air in the test space 11.
In the present embodiment, in above-mentioned equal-enthalpy humidifying case, the gas pipeline for being connected with the test space 11 can
Use heat insulation deflecting gas tube, to reduce the ambient temperature impact on the air that equal-enthalpy humidifying case exports.
For ease of the understanding to the present embodiment technical scheme, below relative humidity is compensated the concrete work of system
Illustrate as process.
In the environment of tropical rainy climate, drench with rain i.e. rainfall time ambient temperature can synchronize rapid decrease,
Humidity then needs to keep constant, and therefore, the present embodiment uses equal-enthalpy humidifying mode to enter the test space
Row humidity compensate, in the case of can effectively guaranteeing temperature Rapid Variable Design, can simulated rainfall time the fast prompt drop of temperature
Guarantee time low that test space humidity is constant.Specifically, if the temperature of the test space reduces, saturation of the air water
Vapour quality E will reduce, and the relative humidity RH in the test space to be guaranteed keeps constant, then basis
Relative humidity variations computing formula RH (%)=e/E, now must reduce actual vapor quality e in air.
In the present embodiment, relative humidity compensates system by using equal-enthalpy humidifying function to determine the heating temperature of heater
Degree, obtains the air with uniform temperature and humidity of compensation, and sends into the test space.
Wherein, described equal-enthalpy humidifying function is described as follows:
First parameter is defined:
T0: incoming air temperature (degree Celsius), for measuring the air themperature obtained in the test space；
RH0: incoming air relative humidity, for measuring the relative air humidity obtained in the test space；
Temperature (degree Celsius) after the change of t1: incoming air, the air themperature exported for equal-enthalpy humidifying device,
Namely water needs heated temperature in equal-enthalpy humidifying device；
The atmospheric pressure of P0: environment；
T0=t0+273.16: incoming air temperature (kelvin)；
PT0=6.11139*EXP (19.802* (T0-273.16)/(T0-17.885+0.000231*T0^2)): come
The saturation vapour pressure of stream air；
The actual water vapor pressure of PST0=PT0*RH0: incoming air；
T1=t1+273.16: the temperature (absolute temperature kelvin) after change；
PST1=6.11139*EXP (19.802* (T1-273.16)/(T1-17.885+0.000231*T1^2)):
Saturation vapour pressure after change；
RH1: when PST0/PST1>=1, take RH1=1, when PST0/PST1<when 1, takes RH1
Relative air humidity after=PST0/PST1 change.
It is hereby achieved that:
RH1={6.11139*EXP (19.802* (T0-273.16)/(T0-17.885+0.000231*T0^2)) *
RH0}/{6.11139*EXP(19.802*(T1-273.16)/(T1-17.885+0.000231*T1^2))}
Therefore, t1=T1-273.16, this t1 value is exactly the temperature of water in equal-enthalpy humidifying device, and controller can lead to
Cross control heating to add hot water, to the temperature value of water.
Specifically, above-mentioned controller can carry out precomputation according to test procedure design parameter, by precomputation
The humidity offset obtained passes to microcontroller, and microcontroller just can be calculated by equal-enthalpy humidifying function again,
Determine the water temperature in equal-enthalpy humidifying case and air inflow, control heater heating water temperature to value of calculation, control
The air of air compressor processed supply certain pressure, it is possible to the humidity needed for generation compensates.
In actual application, if the range of temperature of the test space is less, then can utilize one of them constant enthalpy
Add wet tank to provide humidity to compensate, when variations in temperature is bigger for test cabinet, so that it may utilize two etc. simultaneously
Enthalpy adds wet tank to provide humidity to compensate for test cabinet, or first with two equal-enthalpy humidifying casees, profit the most again
With an equal-enthalpy humidifying case.
Fig. 3 A is the theory structure schematic diagram of rainfall control system in the embodiment of the present invention；Fig. 3 B is this
The structural representation of the nozzle in rainfall control system in bright embodiment.In the present embodiment, such as Fig. 3 A institute
Showing, above-mentioned rainfall control system 3 specifically can include nozzle 31 and rainfall controller 32, this nozzle
31 include that atomizer 311 and nozzle 312 of drenching with rain, atomizer 311 and nozzle 312 of drenching with rain lead to respectively
Cross different water supply lines, the present embodiment is the first water supply line 341 and the second water supply line 342 company
Receive on supply equipment 33；Rainfall controller 32 is for controlling output and the water supply of each water supply line
Pressure so that can reach default rainfall size from the rainfall of atomizer 311 and nozzle 312 ejection of drenching with rain.
Owing to, in actual rainfall, raindrop can be along with atomization in descent, therefore by arranging atomization
Nozzle 311 can effectively simulate actual situation of raining, and so, can avoid directly being fallen by nozzle 312 of drenching with rain
Lower raindrop cannot directly simulate the problem of actual rainfall, owing to communication products are in actual rainfall environment, and portion
Tap mouth, the interface being particularly exposed to outside easily lost efficacy because being atomized raindrop impact for a long time, special
Current exterior product with the most vent valves (vaporous water or other gas molecules can pass through,
Liquid water molecules etc. cannot be passed through), particularly can be become unidirectional from two-way valve under the conditions of condensation at high humidity
Valve, waterproof port is made nargin, and not or material does not meet requirement, is just easy to owing to product produces
Repiration lost efficacy, therefore, by arranging atomizer, can effectively guarantee under this rainfall environment
The accuracy of communication products test and reliability.
In the present embodiment, as shown in Figure 3A, on the first water supply line 341 and the second water supply line 342
Being respectively arranged with rain adjustable valve 351 and rain adjustable valve 352, so, rainfall controller 32 is the most permissible
Atomizer 311 and nozzle of drenching with rain is controlled by controlling rain adjustable valve 351 and rain adjustable valve 352
The rainfall of 312.Wherein, described rain adjustable valve can be specifically two grades of regulation valves, so, and can
As required when carrying out rainfall regulation, required rainfall can be adjusted exactly by two grades of regulation valves.
In the present embodiment, as shown in Figure 3A, the first water supply line 341 is also provided with pressure regulator valve 343,
This pressure regulator valve 341 is connected with rainfall controller 32, can control the first water supply line 341 and be supplied to atomization spray
The pressure of the water of mouth 311, thus can ensure that atomizer 311 sprayable go out vaporific rainfall.
In the present embodiment, as shown in Figure 3 B, above-mentioned nozzle 31 specifically can include support 313, this
It is provided with the rotating disk 314 rotated around support on frame 313, this rotating disk is provided with atomization water supply line and pouring
Rain water supply line (not shown)；It is provided with multiple be atomized that water supply line connects on rotating disk 314
Atomizer 311, and the multiple nozzles 312 of drenching with rain being connected with water supply line of drenching with rain, and atomizer
311 are disposed alternately on rotating disk 314 with nozzle 312 of drenching with rain；It is additionally provided with driving means on rotating disk 313
317, this driving means 317 is connected with rainfall controller 32, is used under the control of rainfall controller 32,
Control rotating disk 314 to rotate, so, the rainwater sprayed can be made more uniform, actual rainfall effect can be met
Really.Wherein, in the present embodiment, driving means 317 is specially oscillating cylinder, is provided with and supplies
The trachea 3171 that system connects, and control oscillating cylinder work magnetic switch 3172, this magnetic switch
3172 are controlled by rainfall controller 32；Support 313 is connected (not shown) for fixing with test cabinet,
Rainfall so that nozzle 31 is fixed in test cabinet, needed for providing for the test space.
It will be understood by those skilled in the art that in actual application, this driving means 317 can also be motor
Etc. driving means, in order to drive rotating disk 314 rotatable, and the driving of rotating disk 314 and driving means 317
Axle connects, in order to rotatable under drive shaft drives.
In the present embodiment, above-mentioned multiple nozzle 312 and atomizers 311 of drenching with rain specifically can be in plum blossom-shaped
It is distributed on rotating disk 314.By being arranged to spaced plum blossom-shaped structure, spray can be improved further
The rainwater uniformity spilt, improves the verity of the rainfall of simulation.
In the present embodiment, described control system 3 of drenching with rain is by utilizing atomizer 311 and nozzle of drenching with rain
312 drench with rain for the test space 11 offer jointly, and can make drenches with rain more conforms to actual rainfall environment, can have
Imitating the communication products to working in outdoor causes cold end region form moisture film or coagulate because the design of cold end is unreasonable
Dew defect detects, thus communication products can be avoided to go wrong in hot and humid rainy climatic environment,
Wherein, directly contact shell carries out region or the radiating end dispelled the heat, and due to external environment variations in temperature, can lead
Causing this portion temperature to become quickly, therefore this type of region or radiating end are referred to as cold end, particularly high at high temperature
Under the conditions of wet, under rain fall, the rate of temperature fall of this part is up to 5 DEG C/more than min, this region or end
Mouth easily reaches dew point.
In the present embodiment, the rainfall of the needs that rainfall controller 32 can send according to above-mentioned controller 2,
Rainfall is provided for the test space 11, meanwhile, can be by obtaining controller 2 by rain collection device 111
The rainfall gathered, controls rain adjustable valve etc. in real time and controls rainfall to required rainfall.Wherein,
Controller 2, while transmission rainfall is to rainfall controller 32, also can send the parameters such as rain time,
Therefore, rainfall controller 32 also can be after the rainfall that rainfall reaches required, it is possible to counting, until
Reach rain time and just terminate rainfall.
In the present embodiment, effusion meter and water pressure gauge etc. can be set on water supply line, in order in real time to rain
The water yield and pressure in amount control system detect, to prevent nozzle from incrustation scale or blocking occur.
It will be understood by those skilled in the art that the present embodiment measurement apparatus may also include common humidification and removes
Wet system, under the scene little to variations in temperature, available common humidification dehumidification system is
The test space provide needed for humidity, wherein said common humidification dehumidification system specifically can include etc. from
Sub-humidifier, boiler humidifier and dehumidifier etc..So, need not simulation tropical rainy climate bar
During part, it is possible to use those humidifier and dehumidifiers etc. are the humidity needed for test space offer, such as exist
During common high temperature and humidity test, it is possible to enter to utilize common humidifier to humidify, and quickly
When lowering the temperature and be necessary to ensure that moisture stable, then the relative humidity compensation system that may utilize in the present embodiment is come really
Humidity in protecting when testing.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, rather than right
It limits；Although the present invention being described in detail with reference to foregoing embodiments, this area common
Skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be modified by it,
Or the most some or all of technical characteristic is carried out equivalent；And these amendments or replacement, and
The essence not making appropriate technical solution departs from the scope of various embodiments of the present invention technical scheme.
Claims (12)
1. a test device, it is characterised in that including:
Test cabinet, described test cabinet has the sealing test space placing test product；
Rainfall control system, described rainfall control system is used for the rainfall controlling in the described test space, with
The rainfall in the described test space is made to reach to preset rainfall size；
Temperature control system, described temperature control system is used for the temperature controlling in the described test space, with
The temperature in the described test space is made to reach preset temperature size；
Relative humidity compensates system, and described relative humidity compensates system and is used for utilizing equal-enthalpy humidifying mode to control
Make the humidity in the described test space, so that the humidity in the described test space reaches to preset humidity size；
Controller, described controller and described rainfall control system, temperature control system and relative humidity
Compensation system connects, and for according to the ambient parameter in the described test space, controls described rainfall and controls system
System, temperature control system and relative humidity compensate system work, and wherein, described ambient parameter includes
Rainfall in the test space, temperature and humidity；
Described relative humidity compensates system and includes air compressor, equal-enthalpy humidifying case and microcontroller, wherein:
Described equal-enthalpy humidifying case includes humidifying casing, is provided with for for humidifying casing in described humidification casing
Internal water carries out the heater heated, and the bottom of described humidification casing is provided with and described air compressor
The air inlet connected, the top of described humidification casing is provided with the gas outlet being connected with described test cabinet；
Described microcontroller, is used for according to the temperature and humidity in the described test space, and adds according to constant enthalpy
Wet function controls the work of described heater, thinks that the described test space provides the air of corresponding humidity, makes
The humidity of the described test space reaches to preset humidity size.
Test device the most according to claim 1, it is characterised in that described compressor adds with described
Connected by gas pipeline between wet tank body, and on described gas pipeline, be provided with pressure regulation relief valve, described
Pressure regulation relief valve is for adding the air pressure pressure release in wet tank to being sized described in entering.
Test device the most according to claim 1, it is characterised in that described equal-enthalpy humidifying case is two
Individual, and isolated by thermal baffle between two described equal-enthalpy humidifying casees；
Two described equal-enthalpy humidifying casees lead to the first gas pipeline and the second gas pipeline and described air pressure respectively
Contracting machine connects, and be respectively arranged with on described first gas pipeline and the second gas pipeline the first control valve and
Second control valve；
Two described equal-enthalpy humidifying casees are respectively by the 3rd gas pipeline and the 4th gas pipeline and described test
Room connects, and is respectively arranged with the 3rd control valve and the on described 3rd gas pipeline and the 4th gas pipeline
Four control valves；
Described microcontroller controls with described first control valve, the second control valve, the 3rd control valve and the 4th
Valve connects, and is used for controlling described first control valve, the second control valve, the 3rd control valve and the 4th control valve
Work.
4. according to the test device described in Claims 2 or 3, it is characterised in that described equal-enthalpy humidifying case
Inside being additionally provided with temperature sensor, described temperature sensor is connected with described microcontroller.
5. according to the test device described in Claims 2 or 3, it is characterised in that described equal-enthalpy humidifying case
The water in internal portion is provided with the punctulate steel plate of tool.
Test device the most according to claim 1, it is characterised in that described rainfall control system bag
Including nozzle and rainfall controller, described nozzle includes atomizer and nozzle of drenching with rain, described atomizer
Nozzle is connected on supply equipment by different water supply lines respectively with drenching with rain；
Described rainfall controller is for controlling output and the pressure of supply water of each water supply line.
Test device the most according to claim 6, it is characterised in that described nozzle includes support,
It is provided with the rotating disk rotated around described support on described support, described rotating disk is provided with atomization water supply line
With water supply line of drenching with rain；
The multiple described atomizer connected with described atomization water supply line it is provided with on described rotating disk, and
Be connected with described water supply line of drenching with rain multiple described in drench with rain nozzle, and described atomizer and nozzle of drenching with rain
It is disposed alternately on described rotating disk；
The driving means driving described rotating disk to rotate, described driving means and institute it is additionally provided with on described rotating disk
State rainfall controller to connect, be used for controlling described turntable rotation.
Test device the most according to claim 7, it is characterised in that drench with rain described in multiple nozzle and
Atomizer is that plum blossom-shaped is distributed on described rotating disk.
Test device the most according to claim 7, it is characterised in that described atomization water supply line with
Drench with rain described in and and be provided with rain adjustable valve on water supply line；
It is additionally provided with pressure regulator valve on described atomization water supply line.
Test device the most according to claim 1, it is characterised in that described temperature control system
For cold-hot wind feed system.
11. test device according to claim 1, it is characterised in that set in the described test space
It is equipped with rain collection device, temperature sensor and humidity sensor, is connected with described controller respectively, use
Rainfall in gathering the described test space, temperature and humidity.
12. test devices according to claim 1, it is characterised in that arrange on described test cabinet
Have for testing the power interface that product electrically connects with extraneous power supply.
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| CN201310075895.0A CN104043488B (en) | 2013-03-11 | 2013-03-11 | Test device |
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| CN201310075895.0A CN104043488B (en) | 2013-03-11 | 2013-03-11 | Test device |
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| CN104043488B true CN104043488B (en) | 2016-08-24 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106249084A (en) * | 2016-08-31 | 2016-12-21 | 广州岳信试验设备有限公司 | Rain spraying environment simulation experiment system |
| CN107807077A (en) * | 2016-09-09 | 2018-03-16 | 安踏（中国）有限公司 | A kind of ready-made clothes water-resistant performance test device and its method of testing |
| CN109045659B (en) * | 2018-09-06 | 2020-07-03 | 吉林建筑大学 | Constant-humidity badminton sorting box |
| CN109084936A (en) * | 2018-10-08 | 2018-12-25 | 西安清远测控技术有限公司 | One kind is drenched with rain test device and its control system |
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| DE19817372C1 (en) * | 1998-04-18 | 1999-10-07 | Binder Peter Michael | Climate-controlled laboratory cupboard has two de-humidifier evaporators useful e.g. in environmental simulation, materials testing, stability and shelf life tests for food and especially active ingredients in pharmaceutical products |
| CN201291138Y (en) * | 2008-10-08 | 2009-08-19 | 东莞市升微机电设备科技有限公司 | Environmental test cabin |
| CN202494624U (en) * | 2012-03-12 | 2012-10-17 | 高伟波 | Constant-temperature constant-humidity machine set for simulating climate environment |
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| CN202700511U (en) * | 2012-08-04 | 2013-01-30 | 无锡科隆试验设备有限公司 | Simulation environment test chamber |
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| DE19817372C1 (en) * | 1998-04-18 | 1999-10-07 | Binder Peter Michael | Climate-controlled laboratory cupboard has two de-humidifier evaporators useful e.g. in environmental simulation, materials testing, stability and shelf life tests for food and especially active ingredients in pharmaceutical products |
| CN201291138Y (en) * | 2008-10-08 | 2009-08-19 | 东莞市升微机电设备科技有限公司 | Environmental test cabin |
| CN202494624U (en) * | 2012-03-12 | 2012-10-17 | 高伟波 | Constant-temperature constant-humidity machine set for simulating climate environment |
| CN102728416A (en) * | 2012-06-18 | 2012-10-17 | 中国人民解放军第二军医大学 | Simulation system for high temperature and high humidity environment of tropics |
| CN202700511U (en) * | 2012-08-04 | 2013-01-30 | 无锡科隆试验设备有限公司 | Simulation environment test chamber |
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