CN106546834A - A kind of environmental stress screening test method and device - Google Patents
A kind of environmental stress screening test method and device Download PDFInfo
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- CN106546834A CN106546834A CN201510594186.2A CN201510594186A CN106546834A CN 106546834 A CN106546834 A CN 106546834A CN 201510594186 A CN201510594186 A CN 201510594186A CN 106546834 A CN106546834 A CN 106546834A
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Abstract
The invention discloses a kind of environmental stress screening test method and device, to improve time and the validity of environmental stress screening test, the method is, temperature stress is performed according to default cycle-index to apply, during temperature stress applying is performed each time, the first warming temperature, the first high temperature are performed successively and keeps operation, the second high temperature to keep operation, operation of lowering the temperature, the first low temperature to keep operation, the second low temperature to keep operating and the second warming temperature；And during the applying of first time temperature stress is performed, when the second high temperature holding operation and the holding operation of the second low temperature is performed, execution vibration stress applies；Meanwhile, during temperature stress applying is performed each time, perform electric stress and apply.So, only test environment need to be once being built, environmental stress screening test is being completed in the case of once being tested, and while three kinds of stress of applying, can filter out the defect existed under combined stress state, improve time and the validity of test.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of environmental stress screening test method and device.
Background technology
At present, the overall test process of communication base station product include whole machine functional test, whole machine environmental testing and
Whole aircraft reliability test etc. a series of links, wherein whole aircraft reliability test in environmental stress screening test with
Link before and after which has the contact of interwoveness, if screening conditions are improper, the product after screening can not
The fault rate substantially constant stage is reached, therefore, the test mass of this link will directly influence follow-up link
Implementation effect, and product is finally affected in outfield ruuning situation.
In prior art, for the environmental stress screening of communication base station product is tested, the method for generally adopting is,
The experimental condition specified according to GJB 1032-90 and test profile are carried out, and using a kind of combined stress, that is, are shaken
Dynamic stress and temperature stress apply successively in order, and in process of the test carry out electrical property to tested products
Test, refering to shown in table 1, based on the environmental stress screening test method concrete operations flow process under prior art
It is as follows：
Table 1
Step 1：Preparatory stage.
Whether the state of the art of environmental stress screening pretest inspection tested products, fixture etc. meet the requirements.
Step 2：Initial operation stage.
Performance detection before doing experiment to product.
Step 3：Environmental stress screening stress applies the stage, specifically includes:
The 3-1A stages：Product is fixed on a vibration table, applies vibration stress, wherein the frequency range vibrated is
20～2000Hz, acceleration root-mean-square value are 60.6m/s2, vibration is axially 3 axial directions, in process of the test
Carry out fault detect and fault location；
The 3-1B stages：Product is fixed in incubator, applies temperature cycles stress, wherein, low temperature is -55 DEG C,
High temperature is+70 DEG C, and warm variable Rate is 5 DEG C/min, and cycle-index is 10 times, and failure is carried out in process of the test
Detection and fault location；
The 3-2A stages：Product is remained fixed in incubator, applies temperature cycles stress, wherein, low temperature is
- 55 DEG C, high temperature is+70 DEG C, and warm variable Rate is 5 DEG C/min, and cycle-index is 10 times, is arranged in process of the test
Look into and whether also break down；
The 3-2B stages：Product is retightened on a vibration table, applies vibration stress, wherein the frequency model for vibrating
Enclose for 20～2000Hz, acceleration root-mean-square value is 60.6m/s2, vibration is axially 3 axial directions, is tested
Investigate in journey and whether also break down.
Step 4：The final operation phase.
The tested products in step 1, step 2 and step 3 stage are passed through, have carried out finally into this stage
Performance detection, and unsanctioned product needed is carefully analyzed, to decide whether valuable or be necessary to continue
Screened.
As can be seen here, under prior art, environmental stress screening test method is advised according in GJB 1032-90
Fixed experimental condition and test profile are carried out, but the product of different structure, and the response to environmental activity is not
Together, do not exist one it is general, all there is the environmental stress screening scheme of optimum efficiency to all products.
For the environmental stress screening test method under prior art, there is problems with：
(1) test period is long, complex operation：During test, tested products are in whole process of the test from vibration
Platform and incubator are carried for several times, need to carry out test of many times environmental structure and environment calibration, not only environment uniformity and
Equipment state is difficult to ensure that, and test progress is also heavily affected；
(2) screening degree is low, and due to using combined stress, temperature stress and vibration stress apply successively,
Various stress can only inspire the product defects under single stress effect, and some can be just analysed under combined stress state
The product defects for going out is difficult to find；
(3) stress species disappearance, for the base station products worked in outfield, is often operated in civil power unstable
In fixed working environment, but to the unstable of supply voltage in the environmental stress screening test under prior art
Cause base station products working condition detect extremely；
(4) test parameters is inaccurate, and for different tested products, test parameters also should be according to specific
Depending on equipment designed capacity and service condition；
(5) testing equipment is relatively more, needs have incubator and shake table just complete test simultaneously, to producer
For put into it is huge.
There is test period length, result of the test in the analysis based on more than, existing environmental stress screening test method
The low defect of validity.
The content of the invention
The embodiment of the present invention provides a kind of environmental stress screening test method and device, to improve environmental stress sieve
The time of choosing test and validity.
Concrete technical scheme provided in an embodiment of the present invention is as follows：
A kind of environmental stress screening test method, including：
Temperature stress is performed according to default cycle-index to apply, the mistake that temperature stress applies is performed each time
Cheng Zhong, performs the first warming temperature, the first high temperature successively and keeps operation, the second high temperature to keep operation, cooling
Operation, the first low temperature keep operation, the second low temperature to keep operation and the second warming temperature；
During the applying of first time temperature stress is performed, performing the second high temperature holding operation and performing second
When low temperature keeps operation, perform vibration stress and apply；
During temperature stress applying is performed each time, perform electric stress and apply.
In the embodiment of the present invention, while performing the applying of three kinds of stress, held according to default cycle-index first
Trip temperature stress applies, and during temperature stress applying is performed each time, performs the first intensification behaviour successively
Make, the first high temperature keep operation, the second high temperature keep operation, cooling operation, the first low temperature keep operation,
Second low temperature keeps operation and the second warming temperature；Then during the applying of first time temperature stress is performed,
When the second high temperature holding operation is performed and perform the holding operation of the second low temperature, execution vibration stress applies；Together
When, during temperature stress applying is performed each time, perform electric stress and apply.So, only need to be one
It is secondary to build test environment, environmental stress screening test is completed in the case of once being tested, and while is applied
Three kinds of stress, can filter out the defect existed under combined stress state, improve the time of test and have
Effect property；
Also, the parameter in testing, is set according to the actual test situation of base station products, therefore,
More targetedly, base station products are more suitable for.
Preferably, each time perform temperature applications apply during, perform successively the first warming temperature,
First high temperature keep operation, the second high temperature keep operation, cooling operation, the first low temperature keep operation, second
Low temperature keeps operation and the second warming temperature, specifically includes：
From the beginning of 25 DEG C of normal temperature, the first warming temperature is performed, is adopted warm variable Rate for A, is raised to high temperature B
Till, above-mentioned A, B are preset value；
Perform the first high temperature and keep operation, holding high-temperature time is C, and above-mentioned C is preset value；
Perform the second high temperature and keep operation, holding high-temperature time is D, and above-mentioned D is preset value；
Cooling operation is performed, using warm variable Rate E, till low temperature F being down to from high temperature B, above-mentioned E, F
For preset value；
Perform the first low temperature and keep operation, the holding low temperature time is G, and above-mentioned G is preset value；
Perform the second low temperature and keep operation, the holding low temperature time is H, and above-mentioned H is preset value；
The second warming temperature being performed, using warm variable Rate I, 25 DEG C of normal temperature being risen to from low temperature F, above-mentioned I is
Preset value.
Preferably, perform first time temperature stress apply during, perform the second high temperature keep operation and
When performing the holding operation of the second low temperature, perform vibration stress and apply, specifically include：
During the applying of first time temperature stress is performed, performing the second high temperature holding operation and performing second
During low temperature holding operation, vibration level is adopted for J, vibration is axially K axial direction, when respectively performing D, H
Between vibration stress apply, above-mentioned J, K are preset value.
Preferably, during temperature stress applying is performed each time, perform electric stress and apply, it is concrete to wrap
Include：
It is during temperature stress applying is performed each time, high in the first warming temperature of execution, execution first
Temperature keep operation, perform the second high temperature keep operation and perform in cooling operation from high temperature B to 25 DEG C of normal temperature
During process, using high voltage L, perform electric stress and apply, above-mentioned L is preset value；
Being performed during temperature stress applies each time, in cooling operation is performed from 25 DEG C of normal temperature to
Low temperature F processes, the first low temperature of execution keep operation, execution the second low temperature holding to operate and perform second to heat up
During operation, using low-voltage M, perform electric stress and apply, above-mentioned M is preset value.
Preferably, when 10 circulations terminate, if detection is out of order, fix a breakdown, then using same
Mode perform that temperature stress applies, a vibration stress applies and an electric stress applies；Otherwise,
A temperature stress applying is performed again in the same way directly, a vibration stress applies and once electricity should
Power applies.
A kind of environmental stress screening experimental rig, including：
Temperature stress applies module, applies for performing temperature stress according to default cycle-index, each
It is secondary execution temperature stress apply during, perform successively the first warming temperature, the first high temperature keep operation,
Second high temperature keeps operation, cooling operation, the first low temperature to keep operation, the second low temperature to keep operation and second
Warming temperature；
Vibration stress applies module, for, during the applying of first time temperature stress is performed, performing second
When high temperature keeps operation and performs the holding operation of the second low temperature, perform vibration stress and apply；
Electric stress applies module, for, during temperature stress applying is performed each time, performing electric stress
Apply.
In the embodiment of the present invention, while performing the applying of three kinds of stress, held according to default cycle-index first
Trip temperature stress applies, and during temperature stress applying is performed each time, performs the first intensification behaviour successively
Make, the first high temperature keep operation, the second high temperature keep operation, cooling operation, the first low temperature keep operation,
Second low temperature keeps operation and the second warming temperature；Then during the applying of first time temperature stress is performed,
When the second high temperature holding operation is performed and perform the holding operation of the second low temperature, execution vibration stress applies；Together
When, during temperature stress applying is performed each time, perform electric stress and apply.So, only need to be one
It is secondary to build test environment, environmental stress screening test is completed in the case of once being tested, and while is applied
Three kinds of stress, can filter out the defect existed under combined stress state, improve the time of test and have
Effect property；
Also, the parameter in testing, is set according to the actual test situation of base station products, therefore,
More targetedly, base station products are more suitable for.
Preferably, each time perform temperature applications apply during, perform successively the first warming temperature,
First high temperature keep operation, the second high temperature keep operation, cooling operation, the first low temperature keep operation, second
Low temperature keeps operation and during the second warming temperature, temperature stress apply module specifically for：
From the beginning of 25 DEG C of normal temperature, the first warming temperature is performed, is adopted warm variable Rate for A, is raised to high temperature B
Till, above-mentioned A, B are preset value；
Perform the first high temperature and keep operation, holding high-temperature time is C, and above-mentioned C is preset value；
Perform the second high temperature and keep operation, holding high-temperature time is D, and above-mentioned D is preset value；
Cooling operation is performed, using warm variable Rate E, till low temperature F being down to from high temperature B, above-mentioned E, F
For preset value；
Perform the first low temperature and keep operation, the holding low temperature time is G, and above-mentioned G is preset value；
Perform the second low temperature and keep operation, the holding low temperature time is H, and above-mentioned H is preset value；
The second warming temperature being performed, using warm variable Rate I, 25 DEG C of normal temperature being risen to from low temperature F, above-mentioned I is
Preset value.
Preferably, perform first time temperature stress apply during, perform the second high temperature keep operation and
Perform the second low temperature keep operation when, perform vibration stress apply when, vibration stress apply module specifically for：
During the applying of first time temperature stress is performed, performing the second high temperature holding operation and performing second
During low temperature holding operation, vibration level is adopted for J, vibration is axially K axial direction, when respectively performing D, H
Between vibration stress apply, above-mentioned J, K are preset value.
Preferably, during temperature stress applying is performed each time, when performing electric stress applying, electricity should
Power apply module specifically for：
It is during temperature stress applying is performed each time, high in the first warming temperature of execution, execution first
Temperature keep operation, perform the second high temperature keep operation and perform in cooling operation from high temperature B to 25 DEG C of normal temperature
During process, using high voltage L, perform electric stress and apply, above-mentioned L is preset value；
Being performed during temperature stress applies each time, in cooling operation is performed from 25 DEG C of normal temperature to
Low temperature F processes, the first low temperature of execution keep operation, execution the second low temperature holding to operate and perform second to heat up
During operation, using low-voltage M, perform electric stress and apply, above-mentioned M is preset value.
Preferably, device is further used for：
When 10 circulations terminate, if detection is out of order, fix a breakdown, then in the same way,
Temperature stress applies temperature stress applying of module execution, vibration stress applying module and performs once vibration and answer
Power applies and electric stress applies module and performs an electric stress applying；Otherwise, directly again in the same way,
Temperature stress applies temperature stress applying of module execution, vibration stress applying module and performs once vibration and answer
Power applies and electric stress applies module and performs an electric stress applying.
Description of the drawings
Fig. 1 is environmental stress screening test method schematic flow sheet in the embodiment of the present invention；
Fig. 2 is environmental stress screening experimental rig structural representation in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the invention, is not
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
Property work under the premise of the every other embodiment that obtained, belong to the scope of protection of the invention.
In order to improve time and the validity of environmental stress screening test, in the embodiment of the present invention, using simultaneously
Perform temperature stress applying operation, vibration stress applying operation and electric stress to apply to operate, and according to base station
The actual test situation of product, is configured to the parameter that each operates.
Refering to shown in Fig. 1, in the embodiment of the present invention, the idiographic flow of environmental stress screening test method is as follows：
Step 100：Temperature stress is performed according to default cycle-index to apply, should temperature is performed each time
During power applies, the first warming temperature, the first high temperature are performed successively and keeps operation, the second high temperature to keep
Operation, cooling operation, the first low temperature keep operation, the second low temperature to keep operation and the second warming temperature.
In execution step 100, first tested products are run at normal temperatures, before testing to tested products
Performance detection, detection tested products whether break down at normal temperatures, if it is not, then again by tested products
Be fixed in three combined test chambers, and holding fixture meet the requirements, normal operation of sensor, wherein three is comprehensive
Close chamber and can apply temperature stress, vibration stress and electric stress simultaneously.
Wherein, above-mentioned default cycle-index is preferably 10 times.
The concrete operations of the process that temperature stress each time in execution step 100 applies are：
First, from the beginning of 25 DEG C of normal temperature, perform the first warming temperature, adopt warm variable Rate for A (preferably
For 10 DEG C/min), till being raised to high temperature B (preferably 70 DEG C), above-mentioned A, B are preset value；
Then, perform the first high temperature and keep operation, holding high-temperature time is C (preferably 15min), on
C is stated for preset value；
Then, perform the second high temperature and keep operation, holding high-temperature time is D (preferably 10min), on
D is stated for preset value；
Then, cooling operation is performed, using warm variable Rate E (preferably 10 DEG C/min), from high temperature B
Till being down to low temperature F (preferably -40 DEG C), above-mentioned E, F are preset value；
Then, perform the first low temperature and keep operation, the holding low temperature time is G (preferably 15min), on
G is stated for preset value；
Then, perform the second low temperature and keep operation, the holding low temperature time is H (preferably 10min), on
H is stated for preset value；
Finally, the second warming temperature is performed, using warm variable Rate I (preferably 10 DEG C/min), from low temperature
F rises to 25 DEG C of normal temperature, and above-mentioned I is preset value.
Step 110：During the applying of first time temperature stress is performed, operation is kept the second high temperature is performed
During with performing the holding operation of the second low temperature, performing vibration stress and applying.
In execution step 110, concrete operations are：
During the applying of first time temperature stress is performed, performing the second high temperature holding operation and performing second
When low temperature keeps operation, vibration level is adopted for J (preferably 60.6m/s2), vibration axially for K (compared with
It is good for 3) individual axial direction, the vibration stress for respectively performing D, H time applies, and above-mentioned J, K are preset value.
Step 120：During temperature stress applying is performed each time, perform electric stress and apply.
In execution step 120, concrete operations are：
First, during temperature stress applying is performed each time, performing the first warming temperature, performing
First high temperature keep operation, perform the second high temperature keep operation and perform in cooling operation from high temperature B to normal
During warm 25 DEG C of processes, using high voltage L (preferably -40V), perform electric stress and apply, above-mentioned L is
Preset value；
Then, each time perform temperature stress apply during, perform cooling operation in from normal temperature
25 DEG C to low temperature F processes, perform the first low temperature and keep operation, perform the second low temperature and keep operation and perform the
During two warming temperatures, using low-voltage M (preferably -57V), perform electric stress and apply, above-mentioned M is
Preset value.
Wherein, the preferably test parameters in step 100, step 110 and step 120, for different rows
The different product of industry, according to the characteristics of tested products can be selected and be set with the property of test, this
Bright embodiment is carried out for base station products, and preferably test parameters is actually making according to base station products
Set with situation.
Further, when 10 circulations terminate, if detection is out of order, fix a breakdown, then using same
The mode of sample performs a temperature stress applying, a vibration stress and applies and an electric stress applying；Otherwise,
A temperature stress applying is performed again in the same way directly, a vibration stress applies and once electricity should
Power applies.
The purpose of do so is, if detection is out of order, to fix a breakdown, then perform in the same way
Temperature stress applying, a vibration stress apply and an electric stress applies, for detecting tested products
Whether can failure-free operation after fixing a breakdown；
When 10 circulations terminate, if it is not detected that failure, then directly performed again in the same way
Temperature stress applying, a vibration stress apply and an electric stress applies, and receive for further consolidating
Whether trial product can failure-free operation.
Further, after above-mentioned all operations terminate, then tested products are run at normal temperatures, further
Detect that the tested products tested by environmental stress screening are run at normal temperatures whether to break down, if there is
Failure, then need to carefully analyze tested products, to decide whether valuable or be necessary to proceed screening；
If do not broken down, illustrate that tested products, by screening, are used for.
Based on above-described embodiment, refering to shown in Fig. 2, in the embodiment of the present invention, environmental stress screening test is filled
Put including：
Temperature stress applies module 20, applies for performing temperature stress according to default cycle-index, every
Once perform temperature stress apply during, perform successively the first warming temperature, the first high temperature keep operation,
Second high temperature keeps operation, cooling operation, the first low temperature to keep operation, the second low temperature to keep operation and second
Warming temperature；
Vibration stress applies module 21, for performing during first time temperature stress applies, is performing the
When two high temperature keep operation and perform the holding operation of the second low temperature, perform vibration stress and apply；
Electric stress applies module 22, for, during temperature stress applying is performed each time, performing electricity should
Power applies.
Preferably, each time perform temperature applications apply during, perform successively the first warming temperature,
First high temperature keep operation, the second high temperature keep operation, cooling operation, the first low temperature keep operation, second
Low temperature keeps operation and during the second warming temperature, temperature stress apply module 20 specifically for：
From the beginning of 25 DEG C of normal temperature, the first warming temperature is performed, is adopted warm variable Rate for A, is raised to high temperature B
Till, above-mentioned A, B are preset value；
Perform the first high temperature and keep operation, holding high-temperature time is C, and above-mentioned C is preset value；
Perform the second high temperature and keep operation, holding high-temperature time is D, and above-mentioned D is preset value；
Cooling operation is performed, using warm variable Rate E, till low temperature F being down to from high temperature B, above-mentioned E, F
For preset value；
Perform the first low temperature and keep operation, the holding low temperature time is G, and above-mentioned G is preset value；
Perform the second low temperature and keep operation, the holding low temperature time is H, and above-mentioned H is preset value；
The second warming temperature being performed, using warm variable Rate I, 25 DEG C of normal temperature being risen to from low temperature F, above-mentioned I is
Preset value.
Preferably, perform first time temperature stress apply during, perform the second high temperature keep operation and
When performing the holding operation of the second low temperature, when performing vibration stress applying, it is concrete that vibration stress applies module 21
For：
During the applying of first time temperature stress is performed, performing the second high temperature holding operation and performing second
During low temperature holding operation, vibration level is adopted for J, vibration is axially K axial direction, when respectively performing D, H
Between vibration stress apply, above-mentioned J, K are preset value.
Preferably, during temperature stress applying is performed each time, when performing electric stress applying, electricity should
Power apply module 22 specifically for：
It is during temperature stress applying is performed each time, high in the first warming temperature of execution, execution first
Temperature keep operation, perform the second high temperature keep operation and perform in cooling operation from high temperature B to 25 DEG C of normal temperature
During process, using high voltage L, perform electric stress and apply, above-mentioned L is preset value；
Being performed during temperature stress applies each time, in cooling operation is performed from 25 DEG C of normal temperature to
Low temperature F processes, the first low temperature of execution keep operation, execution the second low temperature holding to operate and perform second to heat up
During operation, using low-voltage M, perform electric stress and apply, above-mentioned M is preset value.
Preferably, device is further used for：
When 10 circulations terminate, if detection is out of order, fix a breakdown, then in the same way,
Temperature stress applies temperature stress applying of the execution of module 20, vibration stress applying module 21 and performs once
Vibration stress applies and electric stress applies module 22 and performs an electric stress applying；Otherwise, directly adopt again
Same mode, temperature stress apply module 20 and perform a temperature stress applying, vibration stress applying mould
Block 21 performs a vibration stress and applies to apply with electric stress applying electric stress of execution of module 22.
In sum, in the embodiment of the present invention, temperature stress is performed according to default cycle-index and is applied,
During performing temperature stress applying each time, the first warming temperature, the first high temperature are performed successively and keeps behaviour
Make, the second high temperature keep operation, cooling operation, the first low temperature keep operation, the second low temperature keep operation and
Second warming temperature；During the applying of first time temperature stress is performed, operation is kept the first high temperature is performed
During with performing the holding operation of the second low temperature, performing vibration stress and applying；Apply temperature stress is performed each time
During, perform electric stress and apply.So, only test environment need to be once being built, is once being tested
In the case of complete environmental stress screening test, and while apply three kinds of stress, can filter out it is comprehensive should
The defect existed under power state, improves time and the validity of test；
Also, the parameter in testing, is set according to the actual test situation of base station products, therefore,
More targetedly, base station products are more suitable for.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can be using complete hardware embodiment, complete software embodiment or knot
The form of the embodiment in terms of conjunction software and hardware.And, the present invention can be using wherein wrapping at one or more
Computer-usable storage medium containing computer usable program code (including but not limited to magnetic disc store,
CD-ROM, optical memory etc.) on the form of computer program implemented.
The present invention be with reference to method according to embodiments of the present invention, equipment (system), and computer program produce
The flow chart and/or block diagram of product is describing.It should be understood that can by computer program instructions flowchart and
/ or block diagram in each flow process and/or square frame and flow chart and/or the flow process in block diagram and/
Or the combination of square frame.These computer program instructions can be provided to all-purpose computer, special-purpose computer, embedded
The processor of formula processor or other programmable data processing devices is producing a machine so that by calculating
The instruction of the computing device of machine or other programmable data processing devices is produced for realizing in flow chart one
The device of the function of specifying in individual flow process or one square frame of multiple flow processs and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in and computer or other programmable datas process can be guided to set
In the standby computer-readable memory for working in a specific way so that be stored in the computer-readable memory
Instruction produce and include the manufacture of command device, command device realization is in one flow process or multiple of flow chart
The function of specifying in one square frame of flow process and/or block diagram or multiple square frames.
These computer program instructions can be also loaded in computer or other programmable data processing devices, made
Obtain and series of operation steps is performed on computer or other programmable devices to produce computer implemented place
Reason, so as to the instruction performed on computer or other programmable devices is provided for realizing in flow chart one
The step of function of specifying in flow process or one square frame of multiple flow processs and/or block diagram or multiple square frames.
, but those skilled in the art once know base although preferred embodiments of the present invention have been described
This creative concept, then can make other change and modification to these embodiments.So, appended right will
Ask and be intended to be construed to include preferred embodiment and fall into the had altered of the scope of the invention and change.
Obviously, those skilled in the art can carry out various changes and modification and not take off to the embodiment of the present invention
From the spirit and scope of the embodiment of the present invention.So, if these modifications of the embodiment of the present invention and modification belong to
Within the scope of the claims in the present invention and its equivalent technologies, then the present invention be also intended to comprising these change and
Including modification.
Claims (10)
1. a kind of environmental stress screening test method, it is characterised in that include：
Temperature stress is performed according to default cycle-index to apply, the mistake that temperature stress applies is performed each time
Cheng Zhong, performs the first warming temperature, the first high temperature successively and keeps operation, the second high temperature to keep operation, cooling
Operation, the first low temperature keep operation, the second low temperature to keep operation and the second warming temperature；
During the applying of first time temperature stress is performed, performing the second high temperature holding operation and performing second
When low temperature keeps operation, perform vibration stress and apply；
During temperature stress applying is performed each time, perform electric stress and apply.
2. the method for claim 1, it is characterised in that apply temperature applications are performed each time
During, perform successively the first warming temperature, the first high temperature keep operation, the second high temperature keep operation,
Cooling operation, the first low temperature keep operation, the second low temperature to keep operation and the second warming temperature, specifically include：
From the beginning of 25 DEG C of normal temperature, the first warming temperature is performed, is adopted warm variable Rate for A, is raised to high temperature B
Till, the A, B are preset value；
Perform the first high temperature and keep operation, holding high-temperature time is C, and the C is preset value；
Perform the second high temperature and keep operation, holding high-temperature time is D, and the D is preset value；
Cooling operation is performed, using warm variable Rate E, till low temperature F being down to from high temperature B, the E, F
For preset value；
Perform the first low temperature and keep operation, the holding low temperature time is G, and the G is preset value；
Perform the second low temperature and keep operation, the holding low temperature time is H, and the H is preset value；
The second warming temperature being performed, using warm variable Rate I, 25 DEG C of normal temperature being risen to from low temperature F, the I is
Preset value.
3. method as claimed in claim 1 or 2, it is characterised in that performing first time temperature stress
During applying, when the second high temperature holding operation is performed and perform the holding operation of the second low temperature, vibration is performed
Stress applies, and specifically includes：
During the applying of first time temperature stress is performed, performing the second high temperature holding operation and performing second
During low temperature holding operation, vibration level is adopted for J, vibration is axially K axial direction, when respectively performing D, H
Between vibration stress apply, the J, K are preset value.
4. method as claimed in claim 3, it is characterised in that apply temperature stress is performed each time
During, perform electric stress and apply, specifically include：
It is during temperature stress applying is performed each time, high in the first warming temperature of execution, execution first
Temperature keep operation, perform the second high temperature keep operation and perform in cooling operation from high temperature B to 25 DEG C of normal temperature
During process, using high voltage L, perform electric stress and apply, the L is preset value；
Being performed during temperature stress applies each time, in cooling operation is performed from 25 DEG C of normal temperature to
Low temperature F processes, the first low temperature of execution keep operation, execution the second low temperature holding to operate and perform second to heat up
During operation, using low-voltage M, perform electric stress and apply, the M is preset value.
5. method as claimed in claim 4, it is characterised in that further include：
When 10 circulations terminate, if detection is out of order, fixes a breakdown, then hold in the same way
Temperature stress of row applies, a vibration stress applies and an electric stress applies；Otherwise, directly adopt again
Perform a temperature stress applying, a vibration stress in the same way to apply and an electric stress applying.
6. a kind of environmental stress screening experimental rig, it is characterised in that include：
Temperature stress applies module, applies for performing temperature stress according to default cycle-index, each
It is secondary execution temperature stress apply during, perform successively the first warming temperature, the first high temperature keep operation,
Second high temperature keeps operation, cooling operation, the first low temperature to keep operation, the second low temperature to keep operation and second
Warming temperature；
Vibration stress applies module, for, during the applying of first time temperature stress is performed, performing first
When high temperature keeps operation and performs the holding operation of the second low temperature, perform vibration stress and apply；
Electric stress applies module, for, during temperature stress applying is performed each time, performing electric stress
Apply.
7. device as claimed in claim 6, it is characterised in that apply temperature applications are performed each time
During, perform successively the first warming temperature, the first high temperature keep operation, the second high temperature keep operation,
When cooling operation, the first low temperature keep operation, the second low temperature to keep operation and the second warming temperature, the temperature
Degree stress apply module specifically for：
From the beginning of 25 DEG C of normal temperature, the first warming temperature is performed, is adopted warm variable Rate for A, is raised to high temperature B
Till, the A, B are preset value；
Perform the first high temperature and keep operation, holding high-temperature time is C, and the C is preset value；
Perform the second high temperature and keep operation, holding high-temperature time is D, and the D is preset value；
Cooling operation is performed, using warm variable Rate E, till low temperature F being down to from high temperature B, the E, F
For preset value；
Perform the first low temperature and keep operation, the holding low temperature time is G, and the G is preset value；
Perform the second low temperature and keep operation, the holding low temperature time is H, and the H is preset value；
The second warming temperature being performed, using warm variable Rate I, 25 DEG C of normal temperature being risen to from low temperature F, the I is
Preset value.
8. device as claimed in claims 6 or 7, it is characterised in that performing first time temperature stress
During applying, when the second high temperature holding operation is performed and perform the holding operation of the second low temperature, vibration is performed
When stress applies, the vibration stress apply module specifically for：
During the applying of first time temperature stress is performed, performing the second high temperature holding operation and performing second
During low temperature holding operation, vibration level is adopted for J, vibration is axially K axial direction, when respectively performing D, H
Between vibration stress apply, the J, K are preset value.
9. device as claimed in claim 8, it is characterised in that apply temperature stress is performed each time
During, when performing electric stress and applying, the electric stress apply module specifically for：
It is during temperature stress applying is performed each time, high in the first warming temperature of execution, execution first
Temperature keep operation, perform the second high temperature keep operation and perform in cooling operation from high temperature B to 25 DEG C of normal temperature
During process, using high voltage L, perform electric stress and apply, the L is preset value；
Being performed during temperature stress applies each time, in cooling operation is performed from 25 DEG C of normal temperature to
Low temperature F processes, the first low temperature of execution keep operation, execution the second low temperature holding to operate and perform second to heat up
During operation, using low-voltage M, perform electric stress and apply, the M is preset value.
10. device as claimed in claim 9, it is characterised in that described device is further used for：
When 10 circulations terminate, if detection is out of order, fix a breakdown, then in the same way,
The temperature stress applies module and performs a temperature stress applying, vibration stress applying module execution one
Secondary vibration stress applies and the electric stress applies module and performs an electric stress applying；Otherwise, directly adopt again
In the same way, the temperature stress applies module execution temperature stress applying, the vibration stress
Apply module vibration stress of execution to apply to perform an electric stress applying with electric stress applying module.
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