CN104237675B - Method and system for testing mobile phone charger - Google Patents
Method and system for testing mobile phone charger Download PDFInfo
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- CN104237675B CN104237675B CN201410409644.6A CN201410409644A CN104237675B CN 104237675 B CN104237675 B CN 104237675B CN 201410409644 A CN201410409644 A CN 201410409644A CN 104237675 B CN104237675 B CN 104237675B
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Abstract
The invention discloses a method for testing a mobile phone charger. The method comprises the steps that S1,the charger to be tested is connected to a testing instrument, and the testing instrument is connected to a computer through a control line; S2, the computer presets the electrical parameters of the charger to be tested and the safety ranges of the electrical parameters to be tested, and sets the testing parameters and the testing modes of the testing instrument, wherein the testing parameters and the testing mode are needed during charger testing; S3, the testing instrument automatically detects the charger according to the set testing mode, records the testing data of the charger, and judges the testing result according to the testing data, wherein it is judged that the charger fails the test if the testing data exceed the safety ranges of the electrical parameters, and it is judged that the charger passes the test if the testing data are within the safety ranges of the electrical parameters. The method for testing the mobile phone charger is high in testing efficiency.
Description
Technical field
The present invention relates to electronic applications, in particular, it is related to a kind of method of testing of charger for mobile phone and test system.
Background technology
Nowadays, charger is the requisite accessory of mobile phone, and a mobile phone can not have earphone, do not have bluetooth, do not have
WIFI etc..But, only can not there is no charger, the performance of charger has directly influenced the satisfaction to mobile phone for the client,
Charger is also the most complicated inside Cellphone Accessories, is easiest to the accessory ging wrong, but the test of charger remains a need for testing work
Cheng Shi connects charger for mobile phone after upper test instrunment, and setting test pattern and test parameter, test and record test number manually
According to and being confirmed whether to meet the requirement of performance, safety with specifications contrast, this is required for Test Engineer's going step by step and sets
Put test condition, test data simultaneously judges whether to meet performance, the requirement of safety, inefficiency.
Content of the invention
The technical problem to be solved is the method for testing providing a kind of high charger for mobile phone of testing efficiency.
The purpose of the present invention is achieved through the following technical solutions：
A kind of method of testing of charger for mobile phone, including step：
S1：Charger to be tested is connected to test instrunment, test instrunment is connected to computer by control line；
S2：Computer pre-sets electric parameter and its safety range, the setting test instrunment of this charger to be tested
Test parameter needed for testing charger and test pattern；
S3：Test instrunment is according to the test pattern of setting, automatic detection charger, and records the test data of charger,
And judge test result according to this test data, if this test data, outside the safety range of electric parameter, judges charger
Test failure；If this test data is in the safety range of electric parameter, judge charger test passes.
Further, described electric parameter includes charger input voltage, theoretical output voltage values, theoretical output current value
And load resistance；Test parameter includes the scope of the test voltage of test instrunment, and the minima of test voltage is defeated equal to charger
Enter the minima of voltage security scope, the maximum of test voltage is equal to the maximum of charger input voltage safety range；
Described step S3 includes：
Load resistance is accessed test loop, first selects the minima output of test voltage, and according to default step value
Step up test voltage with time delay, record the actual output voltage of charger simultaneously according to each different test voltage respectively
Value and actual output current value；
Judge test result according to this actual output voltage value and actual output current value, if actual output voltage value is with reason
By the difference of output voltage values, or the difference of actual output current value car following-theory output current value is outside default safety range,
Then judge charger test failure；If the difference of actual output voltage value car following-theory output voltage values, and reality output electricity
The difference of flow valuve car following-theory output current value all in default safety range, then judges charger test passes.Work as charger
Input voltage within specification when, its output voltage and output current should also be as within specification, if this is because output
Voltage and output current too high or too low all there is a problem of different degrees of, such as output voltage and output current are too low, fill
Electrical equipment needs the charging interval grown very much, even can fill electricity, and battery of mobile phone cannot charge for a long time and can affect it and use the longevity
Life；And output voltage is too high may damage battery, output current is too high when being likely to result in battery of mobile phone supersaturation and causing standby
Between situations such as shorten；This programme tests its actual output voltage values and actual output current value, and according to itself and default theory
Output voltage values and the comparison of theoretical output current value, judge whether charger is qualified, reduce underproof charger and are sent to
In the handss of client may be it is ensured that product quality.
Further, described electric parameter includes theoretical under-voltage value and theoretical overpressure value and load resistance；Test parameter bag
Include the scope of the test voltage of test instrunment, the minima of test voltage is less than the minima of described under-voltage value safety range, survey
The maximum of examination voltage is more than the maximum of described overpressure value safety range；
Described step S3 includes：
Load resistance is accessed test loop, selects the minima output of test voltage first, and according to default stepping
Value and time delay step up test voltage, record the reality output electricity of charger respectively according to each different test voltage simultaneously
Pressure value and actual output current value, computer judges the reality of charger according to actual output voltage value and actual output current value
Under-voltage value and actual overpressure value；
Judge test result according to this actual under-voltage value and actual overpressure value, if the difference of actual under-voltage value car following-theory under-voltage value
It is worth, or the difference of actual overpressure value car following-theory overpressure value outside default safety range, then judges charger test failure；If
The difference of actual under-voltage value car following-theory under-voltage value, and the difference of actual overpressure value car following-theory overpressure value is all in default safe model
In enclosing, then judge charger test passes.The presence of the different and various special circumstances of each area and period power condition,
Make charger most likely with the environment too high or too low in input voltage, thus being provided with charger more under-voltage and
Over-voltage protection function, it is to avoid battery of mobile phone or even whole mobile phone cause to damage because moment or lasting high pressure or low pressure charge
Bad, even print and distribute the possibility of the major accidents such as fire；The actual under-voltage value of this programme testing charger and actual overpressure value, and
According to its comparison with theoretical under-voltage value and theoretical overpressure value, judge whether charger qualified, prevent from not possessing under-voltage protection with
Overvoltage protection, or under-voltage protection and the underproof charger of over-voltage protecting function dispatch from the factory, and reduces underproof charger and is sent
To in client's handss may be it is ensured that product quality.
Further, described electric parameter includes theoretical over current value and load resistance；Test parameter includes test instrunment
Test electric current scope, the minima of test voltage is less than the minima of described over current value safety range, test electric current
Maximum is more than the maximum of described over current value safety range；
Described step S3 includes：
Load resistance is accessed test loop, first selects the minima output of test electric current, and according to default step value
Step up test electric current with time delay, until this charger overcurrent protection action, actual overcurrent during record protection action
Value；
Judge test result according to this actual over current value, if actual over current value exists with the difference of charger over current value
Outside default safety range, then judge charger test failure；If actual over current value is with the difference of charger over current value
In default safety range, then judge charger test passes.A lot of chargers have excess current protective function, for charging
Cut off charging circuit when the electric current of device is excessive, because electric current is excessive is likely to cause battery of mobile phone tympanites, damage battery, in addition quick-fried
Explode and jeopardize personal safety；The actual over current value of this programme testing charger, and comparison with theoretical over current value according to it, sentence
Whether disconnected charger is qualified, reduces no overcurrent protection function or the underproof product of overcurrent protection function and is sent in client's handss
May be it is ensured that product quality.
Further, described electric parameter includes theoretical short-circuit current value；
Described step S3 includes：
Test instrunment is by the output terminal shortcircuit of described charger, and the actual short electric current of charger described in test record,
Judge test result according to this actual short electric current, if the difference of the actual short electric current of described charger and theoretical short-circuit current value
Value outside default safety range, then judges charger test failure；If the actual short electric current of charger and theory short circuit
The difference of current value in default safety range, then judges charger test passes.In live and work, using charger
When, due to charger internal reason or other transient causes, charger is likely to short circuit, thus carries short charger more
Road defencive function, automatically cuts off charging circuit in charger short circuit, but some chargers or short-circuit protection function lost efficacy
Or temperature and electric current that short-circuit protection action are very high, this is all likely to result in charger, battery, mobile phone damage, or even danger
And personal safety；This programme, the actual short electric current of the protection that is short-circuited of testing charger, and according to itself and theoretical short circuit electricity
The comparison of flow valuve, judges whether charger is qualified, reduces short-circuit protection function inefficacy or short-circuit protection function is undesirable
Product be sent in client's handss may be it is ensured that product quality.
Further, described electric parameter includes theoretical open circuit voltage value；
Described step S3 includes：
The outfan of described charger is opened a way by test instrunment, the actual open-circuit voltage values of test record, actual opens according to this
Road magnitude of voltage judges test result, if the difference of the actual open-circuit voltage values of described charger and theoretical open circuit voltage value is default
Safety range outside, then judge charger test failure；If the actual open-circuit voltage values of described charger and theoretical open circuit
The difference of magnitude of voltage within default safety range, then judges charger test passes.A lot of people are filled to mobile phone with charger
After electricity, conveniently always like charger is inserted on socket on foot and pay no attention to, actually charger zero load is also to there is power consumption, and the time
The long service life that may shorten charger, or even burn charger and jeopardize personal safety；This programme is to reality during zero load
Border open-circuit voltage is tested, and is compared with theoretical open circuit voltage and judges whether charger meets the requirements, and reduces charger
The charger that open-circuit voltage falls short of specifications be sent in client's handss may be it is ensured that quality.
Further, described computer is tested according to described charger test data and test result generate WORD or
EXCEL document.The test data that test charger and test result, with WORD or EXCEL document record storage, first facilitate
Management；Second facilitate the problem that analysis charger exists, to scheme to improve the performance of charger each side, improve work efficiency.
Further, described test pattern includes constant voltage mode, constant current mode, permanent resistance mode and short-circuit mode.
It is different that different chargers is likely to require the test carrying out, and multiple test patterns facilitate tester to select collocation,
More preferably more efficient completes the test job to charger, improves work efficiency.
Further, described electric parameter includes charger input voltage, theoretical output voltage values, theoretical output current
Value, theoretical under-voltage value, theoretical overpressure value, theoretical over current value, theoretical short-circuit current value, theoretical open circuit voltage value and load electricity
Resistance；Test parameter includes the scope of the test voltage of test instrunment, the scope of test electric current；
Described step S3 includes process：
S3-1：The outfan of described charger is opened a way by test instrunment, the actual open-circuit voltage values of test record, real according to this
Border open-circuit voltage values judge test result, if the difference of the actual open-circuit voltage values of described charger and theoretical open circuit voltage value exists
Outside default safety range, then judge charger test failure, testing process goes to S3-6；If the reality of described charger
The difference of open-circuit voltage values and theoretical open circuit voltage value within default safety range, then judges charger test passes, surveys
Examination flow process goes to S3-2；
S3-2：The minima of test voltage is equal to the minima of charger input voltage safety range, and test voltage is
Big value is equal to the maximum of charger input voltage safety range；Load resistance is accessed test loop, first selects test voltage
Minima output, and test voltage is stepped up according to default step value and time delay, simultaneously according to each different test
Voltage records actual output voltage value and the actual output current value of charger respectively, and calculates and record actual power value；
Judge test result according to this actual output voltage value, actual output current value and actual power value, if actual defeated
Go out difference, the difference of actual output current value car following-theory output current value and the actual power of magnitude of voltage car following-theory output voltage values
One of difference of value car following-theory performance number or multiple outside default safety range, then judge that charger is tested and conform to
Lattice, testing process goes to S3-6；If the difference of actual output voltage value car following-theory output voltage values, actual output current value are with reason
By the difference of output current value and the difference of actual power value car following-theory performance number all in default safety range, then judge to fill
Electric test is qualified, and testing process goes to step S3-3；
S3-3：The minima of test voltage is less than the minima of described under-voltage value safety range, the maximum of test voltage
Maximum more than described overpressure value safety range；Load resistance is accessed test loop, selects the minimum of test voltage first
Value output, and test voltage is stepped up according to default step value and time delay, divided according to each different test voltage simultaneously
Not Ji Lu the actual output voltage value of charger and actual output current value, computer is defeated according to actual output voltage value and reality
Go out current value and judge the actual under-voltage value of charger and actual overpressure value；
Judge test result according to this actual under-voltage value and actual overpressure value, if the difference of actual under-voltage value car following-theory under-voltage value
It is worth, or the difference of actual overpressure value car following-theory overpressure value outside default safety range, then judges charger test failure, survey
Examination flow process goes to S3-6；If the difference of actual under-voltage value car following-theory under-voltage value, and the difference of actual overpressure value car following-theory overpressure value
Value all in default safety range, then judges charger test passes, testing process goes to step S3-4；
S3-4：The minima of test voltage is less than the minima of described over current value safety range, the maximum of test electric current
Value is more than the maximum of described over current value safety range；Load resistance is accessed test loop, first selects test electric current
Little value output, and test electric current is stepped up according to default step value and time delay, until this charger overcurrent protection action,
Actual over current value during record protection action；
Judge test result according to this actual over current value, if actual over current value exists with the difference of charger over current value
Outside default safety range, then judge charger test failure, testing process goes to S3-6；If actual over current value is with charging
The difference of device over current value in default safety range, then judges charger test passes, and testing process goes to S3-5；
S3-5：Test instrunment is by the output terminal shortcircuit of described charger, and the actual short of charger described in test record
Electric current, judges test result according to this actual short electric current, if the actual short electric current of described charger and theoretical short circuit current
The difference of value outside default safety range, then judges charger test failure；If the actual short electric current of charger and reason
By short-circuit current value difference in default safety range, then judge charger test passes；Testing process goes to S3-6；
S3-6：The test data that computer is tested according to described charger and test result generate WORD or EXCEL document；
Described test pattern includes constant voltage mode, constant current mode, permanent resistance mode and short-circuit mode.Nowadays, have
The test of a little chargers, from the beginning a set of flow process of test is gone to tail, though making test data and test to a certain extent
Result more comprehensively, but the testing time many times giving tester is limited, how within the limited time, protect
It is critically important for faster completing to test while card test quality；This programme, the project procedure that will test, one one
Carrying out test, no longer carry out follow-up test event when one of which test failure outputs test result, so permissible
Ensure that underproof product cannot have been saved the substantial amounts of testing time simultaneously, improve work efficiency by test；In addition, this
Scheme is also added into the test of actual power, even if thus actual output voltage value and actual output current value are all in safety range
Interior, it is possible to exceeding safety range, power is too high and too low is likely to damage charger, battery and correlation for its power
Equipment, do so advantageously ensures that product quality.
A kind of test system of charger for mobile phone, including charger and test device, described test device includes computer
With the test instrunment by described computer controls, described test instrunment includes controllable voltage module, controllable current module, controlled negative
Carry resistive module, be used for accessing the test interface of described charger and being used for controlling described controllable voltage module, controllable current
Module, controllable load resistive module access the control module of the test loop of charger test；Described controllable voltage module, controlled
Current module, controllable load resistive module are coupled respectively to described control module and test interface, the control of described control module
End is coupled in described computer.This programme is by controllable voltage module required for charger test, controllable current module and controlled negative
Carry resistive module to go to control using control module, and control module, by computer controls, so can be set by computer in advance
Put test parameter and test module of charger test etc. it is no longer necessary to the manual setting of going step by step of tester is tested
Condition, test data simultaneously judges whether to meet performance, the requirement of safety, shortens the testing time, improves testing efficiency；And, by
Only need less tester can complete test job in automatic test, thus decrease cost of labor.
It has been investigated that, nowadays, the test of charger remains a need for Test Engineer and charger for mobile phone is connected test
After instrument, setting test pattern and test parameter, test and record test data manually, and are confirmed whether completely with specifications contrast
Sufficient performance, safety requirement, this be required for Test Engineer step by step go arrange test condition, test data and judge be
No meet performance, safety requirement, inefficiency；The method of the present invention pre-sets this charger to be tested in computer
Test parameter needed for electric parameter and its safety range, setting test instrunment testing charger and test pattern, then test
Instrument is according to the test pattern of setting, automatic detection charger, and records the test data of charger；The test ginseng of test instrunment
Number is arranged according to default test pattern automatically by computer, and automatically records test data it is no longer necessary to manual goes
Setting test parameter and record test data, and judge the whether qualified operation of charger also by computer root according to test data
Automatically compare according to default electric parameter and its safety range and judge, testing efficiency is high；And due to whole testing process
Automatization, it is only necessary to a small amount of tester can complete test job, has saved human cost.
Brief description
Fig. 1 is a kind of principle flow chart of the method for testing of charger for mobile phone of the present invention；
Fig. 2 is a kind of detail flowchart of the method for testing of charger for mobile phone of the present invention；
Fig. 3 is a kind of theory diagram of the test system of charger for mobile phone of the present invention.
Wherein：1st, charger；2nd, test instrunment；3rd, computer；10th, test device；21st, controllable voltage module；22nd, controlled
Current module；23rd, controllable load resistive module；24th, test interface；25th, control module.
Specific embodiment
Fig. 1 is a kind of principle flow chart of the method for testing of charger for mobile phone of the present invention, and the method comprising the steps of：
S1：Charger to be tested is connected to test instrunment, test instrunment is connected to computer by control line；
S2：Computer pre-sets electric parameter and its safety range, the setting test instrunment of this charger to be tested
Test parameter needed for testing charger and test pattern；
S3：Test instrunment is according to the test pattern of setting, automatic detection charger, and records the test data of charger,
And judge test result according to this test data, if this test data, outside the safety range of electric parameter, judges charger
Test failure；If this test data is in the safety range of electric parameter, judge charger test passes.
It has been investigated that, nowadays, the test of charger remains a need for Test Engineer and charger for mobile phone is connected test
After instrument, setting test pattern and test parameter, test and record test data manually, and are confirmed whether completely with specifications contrast
Sufficient performance, safety requirement, this be required for Test Engineer step by step go arrange test condition, test data and judge be
No meet performance, safety requirement, inefficiency；The method of the present invention pre-sets this charger to be tested in computer
Test parameter needed for electric parameter and its safety range, setting test instrunment testing charger and test pattern, then test
Instrument is according to the test pattern of setting, automatic detection charger, and records the test data of charger；The test ginseng of test instrunment
Number is arranged according to default test pattern automatically by computer, and automatically records test data it is no longer necessary to manual goes
Setting test parameter and record test data, and judge the whether qualified operation of charger also by computer root according to test data
Automatically compare according to default electric parameter and its safety range and judge, testing efficiency is high；And due to whole testing process
Automatization, it is only necessary to a small amount of tester can complete test job, has saved human cost.
The invention will be further described with preferred embodiment below in conjunction with the accompanying drawings.
Embodiment one：
Fig. 2 is a kind of detail flowchart of the method for testing of charger for mobile phone of the present invention, as illustrated, combine Fig. 1 understanding,
Electric parameter includes charger input voltage, theoretical output voltage values, theoretical output current value, theoretical under-voltage value, theoretical overvoltage
Value, theoretical over current value, theoretical short-circuit current value, theoretical open circuit voltage value and load resistance；Test parameter includes test instrunment
The scope of test voltage, test electric current scope；
Described step S3 includes process：
S3-1：The outfan of described charger is opened a way by test instrunment, the actual open-circuit voltage values of test record, real according to this
Border open-circuit voltage values judge test result, if the difference of the actual open-circuit voltage values of described charger and theoretical open circuit voltage value exists
Outside default safety range, then judge charger test failure, testing process goes to S3-6；If the reality of described charger
The difference of open-circuit voltage values and theoretical open circuit voltage value within default safety range, then judges charger test passes, surveys
Examination flow process goes to S3-2.
After a lot of people are charged the phone with charger, conveniently always like charger is inserted on socket on foot and pay no attention to, actually
Charger zero load is also to there is power consumption, and overlong time may shorten the service life of charger, or even burns charger
Jeopardize personal safety；This programme is tested to actual open-circuit voltage during zero load, and is compared with theoretical open circuit voltage and sentences
Whether disconnected charger meets the requirements, reduce the charger that falls short of specifications of charger open-circuit voltage be sent in client's handss can
Can be it is ensured that quality.
S3-2：The minima of test voltage is equal to the minima of charger input voltage safety range, and test voltage is
Big value is equal to the maximum of charger input voltage safety range；Load resistance is accessed test loop, first selects test voltage
Minima output, and test voltage is stepped up according to default step value and time delay, simultaneously according to each different test
Voltage records actual output voltage value and the actual output current value of charger respectively, and calculates and record actual power value；
Judge test result according to this actual output voltage value, actual output current value and actual power value, if actual defeated
Go out difference, the difference of actual output current value car following-theory output current value and the actual power of magnitude of voltage car following-theory output voltage values
One of difference of value car following-theory performance number or multiple outside default safety range, then judge that charger is tested and conform to
Lattice, testing process goes to S3-6；If the difference of actual output voltage value car following-theory output voltage values, actual output current value are with reason
By the difference of output current value and the difference of actual power value car following-theory performance number all in default safety range, then judge to fill
Electric test is qualified, and testing process goes to step S3-3.
When the input voltage of charger is within specification, its output voltage and output current should also be as within specification,
If this is because output voltage and output current too high or too low all there is a problem of different degrees of, such as output voltage and
Output current is too low, and charger needs the charging interval grown very much, even can fill electricity, and battery of mobile phone cannot fill for a long time
Electricity can affect its service life；And the too high possible damage battery of output voltage, output current is too high to be likely to result in battery of mobile phone mistake
Saturation and situations such as cause stand-by time to shorten；This programme tests its actual output voltage values and actual output current value, and root
According to its comparison with default theory output voltage values and theoretical output current value, judge whether charger is qualified, and minimizing does not conform to
The charger of lattice be sent in the handss of client may be it is ensured that product quality；In addition, this programme is also added into the survey of actual power
Examination, even if thus actual output voltage value and actual output current value all in safety range, its power is it is possible to exceed peace
Gamut, power too high and too low be likely to damage the equipment of charger, battery and correlation, do so advantageously ensures that product
Quality.
S3-3：The minima of test voltage is less than the minima of described under-voltage value safety range, the maximum of test voltage
Maximum more than described overpressure value safety range；Load resistance is accessed test loop, selects the minimum of test voltage first
Value output, and test voltage is stepped up according to default step value and time delay, divided according to each different test voltage simultaneously
Not Ji Lu the actual output voltage value of charger and actual output current value, computer is defeated according to actual output voltage value and reality
Go out current value and judge the actual under-voltage value of charger and actual overpressure value；
Judge test result according to this actual under-voltage value and actual overpressure value, if the difference of actual under-voltage value car following-theory under-voltage value
It is worth, or the difference of actual overpressure value car following-theory overpressure value outside default safety range, then judges charger test failure, survey
Examination flow process goes to S3-6；If the difference of actual under-voltage value car following-theory under-voltage value, and the difference of actual overpressure value car following-theory overpressure value
Value all in default safety range, then judges charger test passes, testing process goes to step S3-4.
The presence of the different and various special circumstances of each area and period power condition is so that charger is likely to make
In the too high or too low environment of input voltage, thus charger, it is provided with under-voltage and over-voltage protection function more, keep away
Exempt from battery of mobile phone or even whole mobile phone to cause to damage because moment or lasting high pressure or low pressure charge, even print and distribute fire
Possibility Deng major accident；The actual under-voltage value of this programme testing charger and actual overpressure value, and under-voltage with theory according to it
Value and the comparison of theoretical overpressure value, judge whether charger is qualified, prevent not possessing under-voltage protection and overvoltage protection, or under-voltage
Protection and the underproof charger of over-voltage protecting function dispatch from the factory, and reduce the possibility that underproof charger is sent in client's handss,
Ensure product quality.
S3-4：The minima of test voltage is less than the minima of described over current value safety range, the maximum of test electric current
Value is more than the maximum of described over current value safety range；Load resistance is accessed test loop, first selects test electric current
Little value output, and test electric current is stepped up according to default step value and time delay, until this charger overcurrent protection action,
Actual over current value during record protection action；
Judge test result according to this actual over current value, if actual over current value exists with the difference of charger over current value
Outside default safety range, then judge charger test failure, testing process goes to S3-6；If actual over current value is with charging
The difference of device over current value in default safety range, then judges charger test passes, and testing process goes to S3-5.
A lot of chargers have excess current protective function, for charger electric current excessive when cut off charging circuit because
Electric current is excessive to be likely to cause battery of mobile phone tympanites, damages battery, or even blast jeopardizes personal safety；This programme testing charger
Actual over current value, and comparison with theoretical over current value according to it, judge whether charger qualified, minimizing no overcurrent protection
Function or the underproof product of overcurrent protection function be sent in client's handss may be it is ensured that product quality.
S3-5：Test instrunment is by the output terminal shortcircuit of described charger, and the actual short of charger described in test record
Electric current, judges test result according to this actual short electric current, if the actual short electric current of described charger and theoretical short circuit current
The difference of value outside default safety range, then judges charger test failure, testing process goes to S3-6；If charger
The difference of actual short electric current and theoretical short-circuit current value in default safety range, then judges charger test passes；Survey
Examination flow process goes to S3-6.
In live and work, when using charger, due to charger internal reason or other transient causes, fill
Electrical equipment is likely to short circuit, thus carries short-circuit protection function charger more, automatically cuts off charging circuit in charger short circuit,
But some chargers or short-circuit protection function lost efficacy or the temperature of short-circuit protection action and electric current is very high, and this all may
Cause charger, battery, mobile phone to damage, or even jeopardize personal safety；This programme, the reality of the protection that is short-circuited of testing charger
Border short circuit current, and comparison with theoretical short-circuit current value according to it, judge whether charger is qualified, reduce short-circuit protection function
Lost efficacy or the undesirable product of short-circuit protection function be sent in client's handss may be it is ensured that product quality.
S3-6：The test data that computer is tested according to described charger and test result generate WORD or EXCEL document.
The test data that test charger and test result, with WORD or EXCEL document record storage, first facilitate pipe
Reason；Second facilitate the problem that analysis charger exists, to scheme to improve the performance of charger each side, improve work efficiency.
Test pattern as above includes constant voltage mode, constant current mode, permanent resistance mode and short-circuit mode.Different
Charger to be likely to require the test carrying out be different, multiple test patterns facilitate tester to select collocation, more preferably
More efficient completes the test job to charger, improves work efficiency.
Nowadays, the test of some chargers, from the beginning a set of flow process of test is gone to tail, though making to a certain extent
Test data and test result more comprehensively, but the testing time many times giving tester is limited, how to exist
In the limited time, it is critically important for faster completing to test while ensureing test quality；This programme, by the item of test
Mesh procedure, the carrying out of is tested, when one of which test failure output test result no longer carry out follow-up
Test event, so can ensure that underproof product cannot have been saved the substantial amounts of testing time simultaneously, improve by test
Work efficiency.
Embodiment two：
Fig. 3 is a kind of schematic diagram of the test system of charger for mobile phone of the present invention, and this system includes charger 1 and test dress
Put 10, test device 10 includes computer 3 and the test instrunment 2 by described computer controls, test instrunment 2 includes controllable voltage
Module 21, controllable current module 22, controllable load resistive module 23, test interface 24 and use for accessing described charger
In the control controlling controllable voltage module, controllable current module, controllable load resistive module to access the test loop of charger test
Molding block 25.
Controllable voltage module as above, controllable current module, controllable load resistive module are coupled respectively to control mould
Block 25 and test interface 24, the control end of control module 25 is coupled in computer 3.
Controllable voltage module required for charger test, controllable current module and controllable load resistive module are made by this programme
Go to control with control module, and control module, by computer controls, so can pre-set charger test by computer
Test parameter and test module etc. it is no longer necessary to tester manual step by step go test condition is set, test number
According to and judge whether to meet the requirement of performance, safety, shorten the testing time, improve testing efficiency；And, due to automatic test only
Need less tester can complete test job, thus decrease cost of labor.
Above content is to further describe it is impossible to assert with reference to specific preferred implementation is made for the present invention
Being embodied as of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of present inventive concept, some simple deduction or replace can also be made, all should be considered as belonging to the present invention's
Protection safety range.
Claims (9)
1. a kind of method of testing of charger for mobile phone is it is characterised in that include step：
S1：Charger to be tested is connected to test instrunment, test instrunment is connected to computer by control line；
S2：Computer pre-sets electric parameter and its safety range, the setting test instrunment test of this charger to be tested
Test parameter needed for charger and test pattern；
S3：Test instrunment is according to the test pattern of setting, automatic detection charger, and records the test data of charger, and according to
Judge test result according to this test data, if this test data is outside the safety range of electric parameter, judge that charger is tested
Unqualified；If this test data is in the safety range of electric parameter, judge charger test passes；
Described electric parameter includes theoretical open circuit voltage value；
Described step S3 includes：
The outfan of described charger is opened a way by test instrunment, the actual open-circuit voltage values of test record, according to this actual open circuit electricity
Pressure value judges test result, if the difference of the actual open-circuit voltage values of described charger and theoretical open circuit voltage value is in default peace
Outside gamut, then judge charger test failure；If the actual open-circuit voltage values of described charger and theoretical open circuit voltage
The difference of value within default safety range, then judges charger test passes.
2. as claimed in claim 1 a kind of method of testing of charger for mobile phone it is characterised in that described electric parameter also includes
Charger input voltage, theoretical output voltage values, theoretical output current value and load resistance；Test parameter includes test instrunment
The scope of test voltage, the minima of test voltage is equal to the minima of charger input voltage safety range, test voltage
Maximum is equal to the maximum of charger input voltage safety range；
Described step S3 also includes：
Load resistance is accessed test loop, first selects the minima output of test voltage, and according to default step value and prolong
When step up test voltage, simultaneously according to each different test voltage record respectively charger actual output voltage value and
Actual output current value；
Judge test result according to this actual output voltage value and actual output current value, if actual output voltage value car following-theory is defeated
Go out the difference of magnitude of voltage, or the difference of actual output current value car following-theory output current value outside default safety range, is then sentenced
Disconnected charger test failure；If the difference of actual output voltage value car following-theory output voltage values, and actual output current value
The difference of car following-theory output current value all in default safety range, then judges charger test passes.
3. as claimed in claim 1 a kind of method of testing of charger for mobile phone it is characterised in that described electric parameter also includes
Theoretical under-voltage value and theoretical overpressure value and load resistance；Test parameter includes the scope of the test voltage of test instrunment, test electricity
The minima of pressure is less than the minima of described under-voltage value safety range, and the maximum of test voltage is more than the safe model of described overpressure value
The maximum enclosing；
Described step S3 also includes：
Load resistance is accessed test loop, selects the minima output of test voltage first, and according to default step value and
Time delay steps up test voltage, records the actual output voltage value of charger respectively according to each different test voltage simultaneously
With actual output current value, according to actual output voltage value and actual output current value, computer judges that the reality of charger is under-voltage
Value and actual overpressure value；
Judge test result according to this actual under-voltage value and actual overpressure value, if the difference of actual under-voltage value car following-theory under-voltage value,
Or the difference of actual overpressure value car following-theory overpressure value outside default safety range, then judges charger test failure；If real
The difference of border under-voltage value car following-theory under-voltage value, and the difference of actual overpressure value car following-theory overpressure value is all in default safety range
Interior, then judge charger test passes.
4. as claimed in claim 1 a kind of method of testing of charger for mobile phone it is characterised in that described electric parameter also includes
Theoretical over current value and load resistance；Test parameter includes the scope of the test electric current of test instrunment, the minima of test voltage
Less than the minima of described over current value safety range, the maximum testing electric current is more than described over current value safety range
Big value；
Described step S3 also includes：
Load resistance is accessed test loop, first selects the minima output of test electric current, and according to default step value and prolong
When step up test electric current, until this charger overcurrent protection action, actual over current value during record protection action；
Judge test result according to this actual over current value, if actual over current value with charger over current value difference default
Safety range outside, then judge charger test failure；If actual over current value with charger over current value difference pre-
If safety range in, then judge charger test passes.
5. as claimed in claim 1 a kind of method of testing of charger for mobile phone it is characterised in that described electric parameter also includes
Theoretical short-circuit current value；
Described step S3 also includes：
Test instrunment is by the output terminal shortcircuit of described charger, and the actual short electric current of charger described in test record, foundation
This actual short electric current judges test result, if the difference of the actual short electric current of described charger and theoretical short-circuit current value exists
Outside default safety range, then judge charger test failure；If the actual short electric current of charger and theoretical short circuit current
The difference of value in default safety range, then judges charger test passes.
6. as claimed in claim 1 a kind of method of testing of charger for mobile phone it is characterised in that described computer is according to described
The test data of charger test and test result generate WORD or EXCEL document.
7. as claimed in claim 1 a kind of method of testing of charger for mobile phone it is characterised in that described test pattern includes perseverance
Voltage mode, constant current mode, permanent resistance mode and short-circuit mode.
8. as claimed in claim 1 a kind of method of testing of charger for mobile phone it is characterised in that described electric parameter includes filling
Electrical equipment input voltage, theoretical output voltage values, theoretical output current value, theoretical power (horse-power) value, theoretical under-voltage value, theoretical overpressure value,
Theoretical over current value, theoretical short-circuit current value, theoretical open circuit voltage value and load resistance；Test parameter includes the survey of test instrunment
The scope of examination voltage, the scope of test electric current；
Described step S3 includes process：
S3-1：The outfan of described charger is opened a way by test instrunment, the actual open-circuit voltage values of test record, actual opens according to this
Road magnitude of voltage judges test result, if the difference of the actual open-circuit voltage values of described charger and theoretical open circuit voltage value is default
Safety range outside, then judge charger test failure, testing process goes to S3-6；If the actual open circuit of described charger
The difference of magnitude of voltage and theoretical open circuit voltage value within default safety range, then judges charger test passes, test stream
Journey goes to S3-2；
S3-2：The minima of test voltage is equal to the minima of charger input voltage safety range, the maximum of test voltage
Maximum equal to charger input voltage safety range；Load resistance is accessed test loop, first selects test voltage
Little value output, and test voltage is stepped up according to default step value and time delay, simultaneously according to each different test voltage
The actual output voltage value of record charger and actual output current value respectively, and calculate and record actual power value；
Judge test result according to this actual output voltage value, actual output current value and actual power value, if reality output is electric
The difference of pressure value car following-theory output voltage values, the difference of actual output current value car following-theory output current value and actual power value with
One of difference of theoretical power (horse-power) value or multiple then judge charger test failure outside default safety range, survey
Examination flow process goes to S3-6；If the difference of actual output voltage value car following-theory output voltage values, actual output current value car following-theory are defeated
Go out the difference of current value and the difference of actual power value car following-theory performance number all in default safety range, then judge charger
Test passes, testing process goes to step S3-3；
S3-3：The minima of test voltage is less than the minima of described under-voltage value safety range, and the maximum of test voltage is more than
The maximum of described overpressure value safety range；Load resistance is accessed test loop, selects the minima of test voltage defeated first
Go out, and test voltage is stepped up according to default step value and time delay, remembered respectively according to each different test voltage simultaneously
The actual output voltage value of record charger and actual output current value, computer is according to actual output voltage value and reality output electricity
Flow valuve judges the actual under-voltage value of charger and actual overpressure value；
Judge test result according to this actual under-voltage value and actual overpressure value, if the difference of actual under-voltage value car following-theory under-voltage value,
Or the difference of actual overpressure value car following-theory overpressure value outside default safety range, then judges charger test failure, test
Flow process goes to S3-6；If the difference of actual under-voltage value car following-theory under-voltage value, and the difference of actual overpressure value car following-theory overpressure value
All in default safety range, then judge charger test passes, testing process goes to step S3-4；
S3-4：The minima of test voltage is less than the minima of described over current value safety range, and the maximum of test electric current is big
Maximum in described over current value safety range；Load resistance is accessed test loop, first selects the minima of test electric current
Output, and test electric current is stepped up according to default step value and time delay, until this charger overcurrent protection action, record
Actual over current value during protection act；
Judge test result according to this actual over current value, if actual over current value with charger over current value difference default
Safety range outside, then judge charger test failure, testing process goes to S3-6；If actual over current value is with charger mistake
The difference of current value in default safety range, then judges charger test passes, and testing process goes to S3-5；
S3-5：Test instrunment is by the output terminal shortcircuit of described charger, and the actual short electric current of charger described in test record,
Judge test result according to this actual short electric current, if the difference of the actual short electric current of described charger and theoretical short-circuit current value
Value outside default safety range, then judges charger test failure；If the actual short electric current of charger and theory short circuit
The difference of current value in default safety range, then judges charger test passes；Testing process goes to S3-6；
S3-6：The test data that computer is tested according to described charger and test result generate WORD or EXCEL document；
Described test pattern includes constant voltage mode, constant current mode, permanent resistance mode and short-circuit mode.
9. a kind of test system of charger for mobile phone is it is characterised in that include charger and test device, described test device bag
Include computer and the test instrunment by described computer controls, described test instrunment includes controllable voltage module, controllable current mould
Block, controllable load resistive module, for access the test interface of described charger and being used for control described controllable voltage module,
Controllable current module, controllable load resistive module access the control module of the test loop of charger test；Described controllable electric
Die block, controllable current module, controllable load resistive module are coupled respectively to described control module and test interface, described control
The control end of module is coupled in described computer；
The test of test system includes step：
S1：Charger to be tested is connected to test instrunment, test instrunment is connected to computer by control line；
S2：Computer pre-sets electric parameter and its safety range, the setting test instrunment test of this charger to be tested
Test parameter needed for charger and test pattern；
S3：Test instrunment is according to the test pattern of setting, automatic detection charger, and records the test data of charger, and according to
Judge test result according to this test data, if this test data is outside the safety range of electric parameter, judge that charger is tested
Unqualified；If this test data is in the safety range of electric parameter, judge charger test passes；
Described electric parameter includes theoretical open circuit voltage value；
Described step S3 includes：
The outfan of described charger is opened a way by test instrunment, the actual open-circuit voltage values of test record, according to this actual open circuit electricity
Pressure value judges test result, if the difference of the actual open-circuit voltage values of described charger and theoretical open circuit voltage value is in default peace
Outside gamut, then judge charger test failure；If the actual open-circuit voltage values of described charger and theoretical open circuit voltage
The difference of value within default safety range, then judges charger test passes.
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| CN107918076B (en) * | 2015-06-12 | 2020-02-14 | Oppo广东移动通信有限公司 | Power adapter detection method and power adapter detection device |
| CN105527520B (en) * | 2016-01-05 | 2019-01-15 | 东莞市冠佳电子设备有限公司 | Quick charger test macro and test method |
| CN108700623A (en) * | 2016-01-28 | 2018-10-23 | 深圳瀚飞科技开发有限公司 | Charger tests system |
| CN106772118A (en) * | 2016-12-07 | 2017-05-31 | 郑州云海信息技术有限公司 | A kind of power link method of testing and system |
| CN106841708B (en) * | 2017-04-11 | 2023-09-12 | 工业和信息化部电信研究院 | Test method, test fixture and system for quick charger |
| CN108692772A (en) * | 2018-08-17 | 2018-10-23 | 安徽标检检验检测有限公司 | The safety detecting method of battery charger |
| CN112014674A (en) * | 2020-09-02 | 2020-12-01 | 西安易朴通讯技术有限公司 | Product board quick-charging opening testing method, product board, testing board and testing system |
| CN112129555A (en) * | 2020-09-04 | 2020-12-25 | 常州今创风挡系统有限公司 | Windshield system testing method |
| CN112379210A (en) * | 2020-11-13 | 2021-02-19 | 天长市龙源电子有限公司 | Automatic debugging method for charger detection parameters |
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