CN110286276A - Charger aging test macro and test equipment - Google Patents
Charger aging test macro and test equipment Download PDFInfo
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- CN110286276A CN110286276A CN201910447509.3A CN201910447509A CN110286276A CN 110286276 A CN110286276 A CN 110286276A CN 201910447509 A CN201910447509 A CN 201910447509A CN 110286276 A CN110286276 A CN 110286276A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
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- Environmental & Geological Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention discloses a kind of charger aging test macro and test equipment, is related to degradation testing technique field, electric energy recycling and reusing when can test charger aging, to reach energy-efficient effect.The system includes: AC-DC conversion unit, hot-wire array, electric energy recovery unit and control feedback unit, common alternating current is connected by the input terminal of AC-DC conversion unit and hot-wire array, and hot-wire array, electric energy recovery unit, control feedback unit are in turn connected to form closed loop；Hot-wire array is for assembling multi-section charger to be measured, so that each portion charger to be measured is tested at full capacity with rated power；Electric energy recovery unit is used to receive and store the electric energy of hot-wire array output, the output loop DC voltage after boosting processing and filtering processing；It controls feedback unit to be used for when circuit DC voltage reaches rated direct voltage standard, controls the input terminal of circuit DC voltage feed back input up to standard to hot-wire array.The equipment includes the system in above scheme.
Description
Technical field
The present invention relates to degradation testing technique field more particularly to a kind of charger aging test macros and test equipment.
Background technique
The senile experiment of electronic equipment is to carry out long-time burning machine to High performance electronics, it is ensured that the safety of product,
The production technology of stability and reliability is the steps necessary before electronic equipment factory.
Currently, electronic equipment needs to carry out burn-in test before factory, some aging of product test needs a large amount of electricity
Can, and these energy largely all become thermal energy and distribute, and especially as mobile phone, the charger of apparatus such as computer, are doing aging
A large amount of electric energy is consumed by ohmic load when test, being consumed for producer in vain for these electric energy is a kind of energy
Waste.
Summary of the invention
The purpose of the present invention is to provide a kind of charger aging test macro and test equipments, can be old to charger
Change electric energy recycling and reusing when test, to reach energy-efficient effect.
To achieve the goals above, an aspect of of the present present invention provides a kind of charger aging test macro, including alternating current-direct current
Converting unit, hot-wire array, electric energy recovery unit and control feedback unit, common alternating current pass through the AC-DC conversion unit
Connect with the input terminal of the hot-wire array, the hot-wire array, the electric energy recovery unit, the control feedback unit according to
Secondary connection forms closed loop, so that the output end of the control feedback unit is connect with the input terminal of the hot-wire array；
The AC-DC conversion unit is for rated DC current needed for common alternating current is converted to the hot-wire array
Pressure；
The hot-wire array is for assembling multi-section charger to be measured, so that each portion charger to be measured is completely negative with rated power
Lotus test；
The electric energy recovery unit is used to receive and store the electric energy of hot-wire array output, by boosting processing and
Output loop DC voltage after filtering processing；
The control feedback unit is used for when the circuit DC voltage reaches the rated direct voltage standard, control
Make the input terminal of the circuit DC voltage feed back input up to standard to the hot-wire array.
Preferably, the hot-wire array includes m group test suite in parallel, and test suite described in every group includes n series connection
Charger test interface, the output end of the AC-DC conversion unit respectively with the input of the m group test suite in parallel
Interface connection, the output interface of the m group test suite of the parallel connection are connect with the input terminal of the electric energy recovery unit respectively.
Preferably, the hot-wire array further includes the protective module to connect one to one with each charger test interface；
The protective module is used to execute under-voltage guarantor when charger to be measured test voltage occurs less than minimum voltage threshold value
Shield；And/or
The protective module is used to execute over-voltage when charger to be measured test voltage occurs greater than ceiling voltage threshold value and protect
Shield；And/or
The protective module is used to execute overcurrent when charger to be measured test electric current occurs greater than maximum current threshold value and protect
Shield.
Preferably, the electric energy recovery unit is active bridge, and the active bridge includes sequentially connected energy storage member
Part, bridge-type boost module and filter, wherein the output interface of the m group test suite of the parallel connection is first with the energy storage respectively
The input terminal of part connects, and the output interface of the filter is connect with the input terminal of the control feedback unit.
It further, further include that the voltage being located between the m group test suite and the energy-storage travelling wave tube of the parallel connection is adjusted
Unit, the voltage regulation unit are used to adjust the output voltage of each group test suite, its pressure stabilizing is made to be input to the energy storage member
Part.
Illustratively, the AC-DC conversion unit is rectifier bridge, and the bridge-type boost module is four bridge circuits, described
Energy-storage travelling wave tube is inductance.
It preferably, further include acquisition unit and processing unit, the acquisition unit is connect with the hot-wire array, described
Processing unit is connect with the acquisition unit and the control feedback unit respectively；
Test parameter of the acquisition unit for every charger to be measured in collecting test array, the test parameter
Including testing time data, test voltage data and test current data；
The processing unit works as test for comparing the test parameter of every charger to be measured and parameter preset threshold value
Parameter exceed parameter preset threshold value when export corresponding charger to be measured be burn-in test it is unqualified, otherwise export it is corresponding to
Surveying charger is that burn-in test is qualified.
Preferably, further including the monitoring display unit being connect with the processing unit；
The monitoring display unit is used to showing the ageing test result of charger to be measured into output, and generate with it is to be measured
The one-to-one test file of charger.
Preferably, further including the remote control unit being connect with the processing unit；
The remote control unit is used for the hot-wire array power-off described in remote control when charger to be measured occurs urgent abnormal,
Stop the burn-in test to all chargers to be measured.
Compared with prior art, charger aging test macro provided by the invention has the advantages that
In charger aging test macro provided by the invention, recycled by AC-DC conversion unit, hot-wire array, electric energy
Unit and control feedback unit composition, are converted into direct current for common alternating current by AC-DC conversion unit, such as by the friendship of 220V
Galvanic electricity is converted to the direct current of 310V, and the direct current of 310V supply hot-wire array is then done test voltage, for being assemblied in
Multi-section charger to be measured on hot-wire array does burn-in test at full capacity, later leads to the portion voltage that hot-wire array exports
Electric energy recovery unit energy storage recycling is crossed, and control feedback unit is given in output after boosted processing and filtering processing, is fed back by control
Circuit DC voltage up to standard is supplied hot-wire array again and used by unit.
As it can be seen that being compared in the prior art in hot-wire array latter end binding ohmic load consumption test voltage, the present invention
Output voltage recycling and reusing that can effectively to hot-wire array by the setting of electric energy recovery unit, and then play energy-efficient
Technical effect.
Another aspect of the present invention provides a kind of test equipment, including charger aging test macro described above.
Compared with prior art, the beneficial effect of test equipment provided by the invention is filled with what above-mentioned technical proposal provided
The beneficial effect of electric appliance aging testing system is identical, and this will not be repeated here.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural block diagram of charger aging test macro in the embodiment of the present invention one.
Appended drawing reference:
1- AC-DC conversion unit, 2- hot-wire array；
3- voltage regulation unit, 4- electric energy recovery unit；
5- controls feedback unit, 6- acquisition unit；
7- processing unit, 8- far control unit；
9- monitors display unit, 41- energy-storage travelling wave tube；
42- bridge-type boost module, 43- filter.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, implement below in conjunction with the present invention
Attached drawing in example, technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without creative labor, belongs to protection of the present invention
Range.
Embodiment one
Referring to Fig. 1, the present embodiment provides a kind of charger aging test macro, including AC-DC conversion unit 1, survey
Play a tryout game column 2, electric energy recovery unit 4 and control feedback unit 5, common alternating current passes through AC-DC conversion unit 1 and hot-wire array 2
Input terminal connection, hot-wire array 2, electric energy recovery unit 4, control feedback unit 5 be in turn connected to form closed loop so that
The output end of control feedback unit 5 is connect with the input terminal of hot-wire array 2；
AC-DC conversion unit 1 is for rated direct voltage needed for common alternating current is converted to hot-wire array 2；Test
Array 2 is for assembling multi-section charger to be measured, so that each portion charger to be measured is tested at full capacity with rated power；Electric energy recycling
Unit 4 is used to receive and store the electric energy of the output of hot-wire array 2, the output loop direct current after boosting processing and filtering processing
Voltage；It controls feedback unit 5 to be used for when circuit DC voltage reaches rated direct voltage standard, it is straight to control circuit up to standard
Galvanic electricity presses feed back input to the input terminal of hot-wire array 2.
In charger aging test macro provided in this embodiment, by AC-DC conversion unit 1, hot-wire array 2, electric energy
Recovery unit 4 and control feedback unit 5 form, and common alternating current is converted into direct current by AC-DC conversion unit 1, such as will
The alternating current of 220V is converted to the direct current of 310V, and the direct current supply hot-wire array 2 of 310V is then done test voltage, is used
In doing burn-in test at full capacity to the multi-section being assemblied on hot-wire array 2 charger to be measured, hot-wire array 2 is exported later
Portion voltage by 4 energy storage of electric energy recovery unit recycle, and it is boosted processing and filtering processing after output to control feedback
Member 5, supplies hot-wire array 2 for circuit DC voltage up to standard by control feedback unit 5 again and uses.
It should be noted that the present embodiment no longer limits the specific structure of control feedback unit 5, illustratively,
Controlling feedback unit 5 can be by sample circuit and singlechip group at single-chip microcontroller such as samples electricity by sampling circuit samples data
Pressure and sample rate current export PWM wave and carry out control loop in conjunction with PI algorithm.
As it can be seen that being compared in the prior art in 2 latter end of hot-wire array binding ohmic load consumption test voltage, this reality
The output voltage recycling and reusing that example can effectively to hot-wire array 2 by the setting of electric energy recovery unit 4 is applied, and then is played
Energy-efficient technical effect.
Specifically, the hot-wire array 2 in above-described embodiment includes m group test suite in parallel, and every group of test suite includes
N concatenated charger test interfaces, the output end of AC-DC conversion unit 1 respectively with the input of m group test suite in parallel
Interface connection, the output interface of m group test suite in parallel are connect with the input terminal of electric energy recovery unit 4 respectively.
When it is implemented, the hot-wire array 2 is made of 6 groups of test suites in parallel, every group of test suite includes one
Input end interface and an output end interface, wherein every group of test suite includes 30 concatenated charger test interfaces again, by
It is one-to-one relationship in each charger test interface and charger to be measured, therefore the hot-wire array 2 can be once to 180
Charger to be measured carries out burn-in test, has the characteristics that burn-in test is high-efficient.
Please continue to refer to Fig. 1, the hot-wire array 2 in above-described embodiment further includes a pair of with each charger test interface one
The protective module that should be connected；Protective module is used for the execution when charger to be measured test voltage occurs less than minimum voltage threshold value
Under-voltage protection；And/or protective module is used to execute when charger to be measured test voltage occurs greater than ceiling voltage threshold value
Pressure protection；And/or protective module is used to execute overcurrent when charger to be measured test electric current occurs greater than maximum current threshold value
Protection.
When it is implemented, since common alternating current can be fluctuated with electricity consumption peak value, in order to avoid each charger to be measured
Because of punch-through caused by voltage instability, the present embodiment is provided with protective module on each charger test interface, the protection
The minimum voltage threshold value of module is preferably 250V, and ceiling voltage threshold value is preferably 400V, and maximum current threshold value is preferably 2.5A,
Corresponding charger test interface is then entered into guard mode automatically when charger to be measured test is beyond above-mentioned threshold range,
And then guarantee the safety of burn-in test process.It should be noted that protective module is that those skilled in the art commonly protect
Circuit, the present embodiment do not repeat them here this.
Please referring next to Fig. 1, the electric energy recovery unit 4 in above-described embodiment is active bridge, and active bridge includes successively
Energy-storage travelling wave tube 41, bridge-type boost module 42 and the filter 43 of connection, wherein the output interface of m group test suite in parallel point
It is not connect with the input terminal of energy-storage travelling wave tube 41, the output interface of filter 43 is connect with the input terminal of control feedback unit 5.
Illustratively, AC-DC conversion unit 1 is rectifier bridge, and bridge-type boost module 42 is four bridge circuits, energy-storage travelling wave tube 41
For inductance.When it is implemented, the inductance that inductance is 10mH can be selected in inductance, four bridge circuits can export m group test suite
DC voltage 310V is boosted to by 80V, filter 43 is the filter that is made of LC to realize the purpose of filtering, with removal
High-frequency Interference makes the smoother of direct voltage output, and then circuit DC voltage is made to meet power reguirements.
Further, the charger aging test macro in above-described embodiment further includes being located at m group test suite in parallel
Voltage regulation unit 3 between energy-storage travelling wave tube 41, voltage regulation unit 3 are used to adjust the output voltage of each group test suite,
Its pressure stabilizing is set to be input to energy-storage travelling wave tube 41.When it is implemented, the specification and model due to charger to be measured are varied, such as to
It surveys i.e. including the charger of 5V, 2A in charger, also includes the charger of 5V, 1A, which results in every group of test suites to export
Voltage it is inconsistent, therefore the present embodiment by the setting of voltage regulation unit 3 make its output voltage stabilization 80~120V it
Between, and then improve the efficiency of voltage recycling.Optionally, voltage regulator circuit can be selected to realize in voltage regulation unit 3, such as selects
It is adjusted with output voltage of the BUCK/BOOST circuit to each group test suite, to guarantee output voltage stabilization in work model
In enclosing.
Please continue to refer to Fig. 1, the charger aging test macro in above-described embodiment further includes acquisition unit 6 and processing
Unit 7, acquisition unit 6 are connect with hot-wire array 2, and processing unit 7 is connect with acquisition unit and control feedback unit 5 respectively；It adopts
Collect test parameter of the unit for every charger to be measured in collecting test array 2, test parameter include testing time data,
Test voltage data and test current data；Processing unit 7 is used for the test parameter and parameter preset of every charger to be measured
Threshold value compares, and it is that burn-in test is unqualified that corresponding charger to be measured is exported when test parameter exceeds parameter preset threshold value, no
Then exporting corresponding charger to be measured is that burn-in test is qualified.
When it is implemented, test parameter of the acquisition unit for every charger to be measured in real-time collecting test array 2,
The test parameter includes but is not limited to testing time data, test voltage data and test current data, and processing unit 7 will be each
The actual test parameter of charger to be measured is compared with the parameter preset threshold value of corresponding model charger to be measured, when actual test is joined
When number is beyond corresponding parameter preset threshold value, then determines that the charger to be measured is unqualified for burn-in test, otherwise determine that this is to be measured
Charger is that burn-in test is qualified；Illustratively, parameter preset threshold value, which is typically set at, is higher by 3 the percent of nominal parameter
Ten.
Preferably, the charger aging test macro in above-described embodiment further includes that the monitoring connecting with processing unit 7 is shown
Show unit 9；It monitors display unit 9 to be used to showing the ageing test result of charger to be measured into output, and generates and charging to be measured
The one-to-one test file of device.Illustratively, acquisition unit 6 is serial communication circuit, and it acts as pass through serial communication handle
Test parameter is transferred in processing unit 7, and processing unit is STM32 single-chip microcontroller, and monitoring display unit 9 is WQT_070 serial ports group
State screen.
It should be noted that monitoring display unit 9 and remote control unit 8 can be selected and be equipped with corresponding function configuration software
Monitoring computer is realized, while the monitoring computer can be by telecommunication, and such as 485 communications are to more charger agings test systems
System synchronously control.
Tester can be screened based on the comparison to a large amount of test files, analyze the suitable aging duration of charger, work
The voltage and current range and failure rate of work to improve the burn-in test working efficiency to charger, and help charger
Developer's optimizing product design.In addition, the display interface of monitoring display unit 9 includes m*n display lamp bead, wherein m table
Show that row, n indicate column, then corresponding lamp bead is lit when the inspection result of any charger to be measured is unqualified, is made
Tester can have found the unqualified charger of burn-in test in time.Wherein, the corresponding whole test files of every group of test suite
For 4 byte datas, in addition, analyze in order to which tester is convenient magnanimity test file, test file preferably with
The mode of test macro number-testDate-affiliated same day testing time-test group #-test position number is named, such as
1-20190408-10-1-17, it is No. 1 test macro in the 10th aging on April 8 in 2019 that meaning, which represents the test file,
The test data of 1st group of No. 17 charger when test.
Embodiment two
The present embodiment provides a kind of test equipments, including above-mentioned charger aging test macro.
Compared with prior art, the beneficial effect of test equipment provided in an embodiment of the present invention is mentioned with above-described embodiment one
The beneficial effect of the charger aging test macro of confession is identical, and this will not be repeated here.
It can be with it will appreciated by the skilled person that realizing that all or part of the steps in foregoing invention method is
Relevant hardware is instructed to complete by program, above procedure can store in computer-readable storage medium, the journey
Sequence when being executed, each step including above-described embodiment method, and storage medium may is that ROM/RAM, magnetic disk, CD,
Storage card etc..
More than, only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, and it is any ripe
It knows those skilled in the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, should all cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of charger aging test macro, which is characterized in that including AC-DC conversion unit, hot-wire array, electric energy recycling
Unit and control feedback unit, common alternating current are connect by the AC-DC conversion unit with the input terminal of the hot-wire array,
The hot-wire array, the electric energy recovery unit, the control feedback unit are in turn connected to form closed loop, so that the control
The output end of feedback unit processed is connect with the input terminal of the hot-wire array；
The AC-DC conversion unit is for rated direct voltage needed for common alternating current is converted to the hot-wire array；
The hot-wire array is for assembling multi-section charger to be measured, so that each portion charger to be measured is surveyed at full capacity with rated power
Examination；
The electric energy recovery unit is used to receive and store the electric energy of the hot-wire array output, at boosting processing and filtering
Output loop DC voltage after reason；
The control feedback unit is used for when the circuit DC voltage reaches the rated direct voltage standard, is controlled up to standard
The circuit DC voltage feed back input to the hot-wire array input terminal.
2. charger aging test macro according to claim 1, which is characterized in that the hot-wire array includes in parallel
M group test suite, test suite described in every group include n concatenated charger test interfaces, the AC-DC conversion unit
Output end is connect with the input interface of the m group test suite of the parallel connection respectively, and the output of the m group test suite of the parallel connection connects
Mouth is connect with the input terminal of the electric energy recovery unit respectively.
3. charger aging test macro according to claim 2, which is characterized in that the hot-wire array further include with respectively
The protective module that charger test interface connects one to one；
The protective module is used to execute under-voltage protection when charger to be measured test voltage occurs less than minimum voltage threshold value；
And/or
The protective module is used to execute overvoltage protection when charger to be measured test voltage occurs greater than ceiling voltage threshold value；
And/or
The protective module is used to execute overcurrent protection when charger to be measured test electric current occurs greater than maximum current threshold value.
4. charger aging test macro according to claim 2, which is characterized in that the electric energy recovery unit is active
Electric bridge, the active bridge include sequentially connected energy-storage travelling wave tube, bridge-type boost module and filter, wherein the m of the parallel connection
Group test suite output interface connect respectively with the input terminal of the energy-storage travelling wave tube, the output interface of the filter with it is described
Control the input terminal connection of feedback unit.
5. charger aging test macro according to claim 4, which is characterized in that further include the m for being located at the parallel connection
Voltage regulation unit between group test suite and the energy-storage travelling wave tube, the voltage regulation unit is for adjusting each group test group
The output voltage of part makes its pressure stabilizing be input to the energy-storage travelling wave tube.
6. charger aging test macro according to claim 4, which is characterized in that the AC-DC conversion unit is whole
Bridge is flowed, the bridge-type boost module is four bridge circuits, and the energy-storage travelling wave tube is inductance.
7. charger aging test macro according to claim 1, which is characterized in that further include that acquisition unit and processing are single
Member, the acquisition unit are connect with the hot-wire array, and the processing unit is anti-with the acquisition unit and the control respectively
Present unit connection；
Test parameter of the acquisition unit for every charger to be measured in collecting test array, the test parameter include surveying
Try time data, test voltage data and test current data；
The processing unit is for comparing the test parameter of every charger to be measured and parameter preset threshold value, when test parameter is super
Exporting corresponding charger to be measured when parameter preset threshold value out is that burn-in test is unqualified, otherwise exports corresponding charger to be measured
For burn-in test qualification.
8. charger aging test macro according to claim 7, which is characterized in that further include connecting with the processing unit
The monitoring display unit connect；
The monitoring display unit is used to showing the ageing test result of charger to be measured into output, and generates and charger to be measured
One-to-one test file.
9. charger aging test macro according to claim 7, which is characterized in that further include connecting with the processing unit
The remote control unit connect；
The remote control unit is for hot-wire array power-off, stopping pair described in the remote control when charger to be measured occurs urgent abnormal
All burn-in tests of charger to be measured.
10. a kind of test equipment, including charger aging test macro of any of claims 1-9.
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| CN201910447509.3A CN110286276A (en) | 2019-05-27 | 2019-05-27 | Charger aging test macro and test equipment |
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|---|---|---|---|---|
| CN116131618A (en) * | 2022-12-13 | 2023-05-16 | 深圳市麦格米特驱动技术有限公司 | Aging test device, method and system |
| CN116131618B (en) * | 2022-12-13 | 2024-04-19 | 深圳麦格米特电气股份有限公司 | Aging test device, method and system |
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