CN103760499B - Power panel testing method and device - Google Patents
Power panel testing method and device Download PDFInfo
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- CN103760499B CN103760499B CN201410038994.6A CN201410038994A CN103760499B CN 103760499 B CN103760499 B CN 103760499B CN 201410038994 A CN201410038994 A CN 201410038994A CN 103760499 B CN103760499 B CN 103760499B
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Abstract
The embodiment of the invention discloses a power panel testing method and a power panel testing device, which not only realize the function of automatically testing whether a power panel is qualified or not, thereby solving the technical problems of high error rate caused by manual testing and low testing efficiency caused by the high error rate, but also further avoiding the damage of the power panel caused by overlarge input current. The method provided by the embodiment of the invention comprises the following steps: the method comprises the steps of carrying out current limiting processing on a power supply input into a power supply board according to a preset current limiting value, determining that a no-load voltage value output by the power supply board after current limiting meets the preset voltage value, detecting a load voltage value output by the power supply board, determining that the load voltage value meets the preset voltage value, then carrying out constant current detection on the power supply board, determining that the preset constant current value is met, and carrying out discharge processing on the power supply board.
Description
Technical field
The present invention relates to integrated hardware technical field, particularly relate to a kind of power panel method of testing and device.
Background technology
Power panel, is the electronic component integrated board powered for high-end electronic devices, in addition to the current supply power supply
Plate also function to protect high-end electronic devices not because the change of external impressed current and voltage suffers damage, particularly with
Current television set, the importance of power panel is indispensable, but, power panel is applied to television set also
Before encapsulation produces or after encapsulation, it is required for the performance to power panel and carries out preliminary survey or repetition measurement,
Preliminary survey is the test that is energized first after electronic component installed by power panel, and repetition measurement is the long-time work of power panel
Make aging after test.
Current power panel method of testing typically uses testing jig, and external voltage, ammeter are by artificial
Judge that the mode of parameter is tested.
But, the method for current manual testing's power panel, often due to subjective and objective factor causes higher
Fault rate, thus, cause the technical problem that testing efficiency is low.
Summary of the invention
Embodiments provide a kind of power panel method of testing and device, not only achieve test automatically
The most qualified function of power panel, thus solve the high fault rate caused due to manual testing, and
Thus resulting in the technical problem that testing efficiency is low, meanwhile, further avoid power panel will not be because of defeated
The factor entering electric current excessive causes damage.
A kind of power panel method of testing that the embodiment of the present invention provides, including:
The power supply of input power plate is carried out current limliting process according to preset cut-off current；
Determine that the floating voltage value that the described power panel after current limliting exports meets preset voltage values；
The load voltage values exporting described power panel detects, and determines that described load voltage values meets
Described preset voltage values；
Described power panel is carried out constant current detection, and determines and meet preset constant current value；
And described power panel is carried out discharge process.
Preferably, described power panel is carried out constant current detection, and determine and meet preset constant current value, to described
Power panel carries out discharge process and specifically includes:
Described power panel is carried out short circuit process；
Described power panel after processing short circuit carries out constant voltage detection according to preset time period value, if output voltage
Value is 0V, then described power panel carries out constant current detection, otherwise closes power supply, carry out described power panel
Discharge process；
If the current value of described constant current detection output meets preset constant current value, then described power panel is put
Electric treatment, otherwise closes power supply, and described power panel is carried out discharge process.
Preferably, described power panel is carried out constant current detection, and determine and meet preset constant current value, to described
Power panel carries out discharge process and specifically includes:
Described power panel is carried out constant current detection, if the current value of output meets preset constant current value, then to institute
State power panel to carry out closing constant current process, otherwise close power supply, described power panel is carried out discharge process；
After carrying out described closedown constant current process, if the described preset constant current value of described power panel being detected not
Exist, then described power panel is carried out discharge process, otherwise close power supply, described power panel is put
Electric treatment.
Preferably, also include after described power panel being carried out discharge process:
Described power panel is carried out physical label process；
And/or
Described power panel test result is carried out upload process.
Preferably, otherwise close power supply, described power panel carried out discharge process and specifically includes:
Otherwise close power supply, described power panel is carried out discharge process；
Send miscue and error message is uploaded.
A kind of power supply board test device that the embodiment of the present invention provides, including:
Flow-restriction, for carrying out current limliting process to the power supply of input power plate according to preset cut-off current；
Dead cells, the floating voltage value of the described power panel output after determining current limliting meets preset electricity
Pressure value；
Load unit, detects for the load voltage values exporting described power panel, and determines described
Load voltage values meets described preset voltage values；
Constant current unit, for described power panel is carried out constant current detection, determines and meets preset constant current value；
Discharge cell, for carrying out discharge process to described power panel.
Preferably, constant current unit specifically includes:
Short circuit subelement, for carrying out short circuit process to described power panel；
Constant voltage subelement, the described power panel after processing short circuit carries out constant voltage according to preset time period value
Detection, if output voltage values is 0V, then carries out constant current detection to described power panel, otherwise closes power supply,
Trigger described discharge cell, concurrently make mistake and point out and error message is uploaded；
First constant current subelement, if the current value of described constant current detection output meets preset constant current value, then touches
Sending out discharge cell described, otherwise close power supply, trigger described discharge cell, concurrently make mistake prompting will
Error message is uploaded.
Preferably, constant current unit specifically includes:
Second constant current subelement, for carrying out constant current detection to described power panel, if output current value meets
Preset constant current value, then trigger constant current and close subelement, otherwise close power supply, trigger described discharge cell,
Concurrently make mistake and point out and error message is uploaded；
Subelement is closed in described constant current, processes for described power panel carries out cut out constant current；
Determine subelement, for after carrying out described closedown constant current process, if described power panel being detected
Described preset constant current value does not exists, then trigger described discharge cell, otherwise close power supply, put described in triggering
Electric unit, concurrently makes mistake and points out and error message uploaded.
Preferably, power supply board test device also includes:
Physical label unit, for carrying out physical label process to described power panel；
And/or
Uploading unit, for carrying out upload process by described power panel test result.
Preferably, power supply board test device also includes:
Progress display unit, is used for obtaining described flow-restriction, described dead cells, described load unit,
The process progress of described constant current unit and described discharge cell, processes and successfully points out, and processes described mistake and carries
Show and show.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
A kind of power panel method of testing that the embodiment of the present invention provides, including: first to input power plate
Power supply carries out current limliting process according to preset cut-off current, it is then determined that the unloaded electricity of the power panel output after current limliting
Pressure value meets preset voltage values, then, detects the load voltage values of power panel output, and determines
Load voltage values meets preset voltage values, followed by power panel carries out constant current detection, and determines satisfied pre-
Put constant current value, finally, power panel is carried out discharge process.In the present embodiment, by power panel is carried out
Idling carries twice magnitude of voltage detection, and power panel carries out constant current detection, thus, determine the voltage of output
Value and current value meet preset voltage values and the design of preset current value respectively, it is achieved that carry out power panel
Automatically the function of test, meanwhile, solves instantly owing to manual testing's power panel causes higher fault rate,
And cause the low technical problem of testing efficiency, and the power supply of input power plate is carried out current limliting process,
Not only protection power panel will not cause damage because of the factor that the electric current of input is excessive, thus, the completeest
The function that kind power panel is tested automatically.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is that the flow process of the embodiment embodiments providing a kind of power panel method of testing is shown
It is intended to；
Fig. 2 is the flow process of another embodiment embodiments providing a kind of power panel method of testing
Schematic diagram；
Fig. 3 is the flow process of another embodiment embodiments providing a kind of power panel method of testing
Schematic diagram；
Fig. 4 is that the structure of the embodiment embodiments providing a kind of power supply board test device is shown
It is intended to；
Fig. 5 is the structure of another embodiment embodiments providing a kind of power supply board test device
Schematic diagram；
Fig. 6 is the structure of another embodiment embodiments providing a kind of power supply board test device
Schematic diagram；
The structural representation of the Fig. 7 current-limiting circuit for providing in the embodiment of the present invention.
Detailed description of the invention
Embodiments provide a kind of power panel method of testing and device, not only achieve test automatically
The most qualified function of power panel, thus solve the high fault rate caused due to manual testing, and
Thus resulting in the technical problem that testing efficiency is low, meanwhile, further avoid power panel will not be because of defeated
The factor entering electric current excessive causes damage.
For making the goal of the invention of the present invention, feature, the advantage can be the most obvious and understandable, below will
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 clear, complete
Ground describes, it is clear that the embodiments described below are only a part of embodiment of the present invention, and not all
Embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creativeness
The all other embodiments obtained under work premise, broadly fall into the scope of protection of the invention.
Refer to Fig. 1, embodiments provide an embodiment bag of a kind of power panel method of testing
Include:
101, the power supply of input power plate is carried out current limliting process according to preset cut-off current；
In the present embodiment, when it needs to be determined that during the reliability of power panel performance, such as test the conjunction of power panel
Lattice, need to test power panel, first the power supply of input power plate are carried out current limliting process, should
It can be to carry out current limliting according to preset cut-off current that current limliting processes.
It should be noted that needed to preset constant before the power supply current limliting of input power plate is processed
Magnitude of voltage, such as, can be 12V, not limit.
Aforesaid preset cut-off current can be that the current value being limited by current-limiting circuit and being not more than 2A is exported.
102, determine that the floating voltage value that the power panel after current limliting exports meets preset voltage values；
After the power supply of input power plate is carried out current limliting process according to preset cut-off current, defeated to power panel
The floating voltage gone out carries out floating voltage value detection, determines that this floating voltage value meets preset voltage values.
It should be noted that aforesaid preset voltage values can be the range of voltage values pre-set, and in advance
The magnitude of voltage put with aforesaid to preset constant voltage values 12V corresponding, can be such as 10.8V extremely
13.2V, does not specifically limit herein.
103, the load voltage values of power panel output is detected, and it is preset to determine that load voltage values meets
Magnitude of voltage；
In the present embodiment, after determining that the floating voltage value that power panel exports meets preset voltage values, to electricity
The magnitude of voltage of the load of source plate output detects, and determines that the magnitude of voltage of this load meets preset voltage values.
It should be noted that aforesaid preset voltage values can be the range of voltage values pre-set, and in advance
The magnitude of voltage put with aforesaid to preset constant voltage values 12V corresponding, can be such as 10.8V extremely
13.2V, does not specifically limit herein.
104, power panel is carried out constant current detection, and determine and meet preset constant current value；
After floating voltage and load voltage determine to meet preset voltage values, need power panel is carried out perseverance
Stream detection, and determine that the current value of output meets preset constant current value.
It is understood that aforesaid power supply is carried out constant current detection before, need to pre-set input
Constant current parameter value, can be such as 0.5A, and input 50V magnitude of voltage, specifically do not do herein
Limit, aforesaid preset constant current value can be the value range of preset constant electric current, can be such as 0.4A extremely
0.6A, does not specifically limit herein.
It should be noted that preset constant current value possesses relative with the constant current parameter value pre-setting input
The relation answered.
105, power panel is carried out discharge process.
In the present embodiment, after power panel is carried out constant current detection, just power panel is carried out discharge process,
It is understood that the residual voltage that this discharge process can be the electrochemical capacitor to power panel is carried out completely
Discharge process.
A kind of power panel method of testing that the embodiment of the present invention provides, including: first to input power plate
Power supply carries out current limliting process according to preset cut-off current, it is then determined that the unloaded electricity of the power panel output after current limliting
Pressure value meets preset voltage values, then, detects the load voltage values of power panel output, and determines
Load voltage values meets preset voltage values, followed by power panel carries out constant current detection, and determines satisfied pre-
Put constant current value, finally, power panel is carried out discharge process.In the present embodiment, by power panel is carried out
Idling carries twice magnitude of voltage detection, and power panel carries out constant current detection, thus, determine the voltage of output
Value and current value meet preset voltage values and the design of preset current value respectively, it is achieved that carry out power panel
Automatically the function of test, meanwhile, solves instantly owing to manual testing's power panel causes higher fault rate,
And cause the low technical problem of testing efficiency, and the power supply of input power plate is carried out current limliting process,
Not only protection power panel will not cause damage because of the factor that the electric current of input is excessive, thus, the completeest
The function that kind power panel is tested automatically.
The above is that the flow process to a kind of power panel method of testing provided in the embodiment of the present invention carries out detailed
Describe, the detailed process of power panel preliminary survey will be described in detail below, refer to Fig. 2, the present invention
Embodiment provides an embodiment of a kind of power panel method of testing and includes:
201, judge whether the power panel current value after current limliting process meets preset cut-off current, the most then hold
Row step 202, if it is not, then perform step 210；In the present embodiment, when it needs to be determined that power panel performance
During reliability, such as, test the qualification of power panel, need power panel to be tested, first to input
The power supply of power panel carries out current limliting process, and it can be to carry out current limliting according to preset cut-off current that this current limliting processes,
Then judge whether the power panel current value after current limliting process meets preset cut-off current, if after current limliting processes
Power panel current value meets preset cut-off current, then perform step 202, if the power panel electric current after current limliting process
Value is unsatisfactory for preset cut-off current, then perform step 210.
It should be noted that needed to preset constant before the power supply current limliting of input power plate is processed
Magnitude of voltage, such as, can be 12V, not limit.
Aforesaid preset cut-off current can be that the current value being limited by current-limiting circuit and being not more than 2A is exported.
202, judge whether the floating voltage value that the power panel after current limliting exports meets preset voltage values, if so,
Then perform step 203, if it is not, then perform step 210；
After the power supply of input power plate is carried out current limliting process according to preset cut-off current, defeated to power panel
The floating voltage gone out carries out floating voltage value detection, it is judged that the floating voltage value of the power panel output after current limliting
Whether meet preset voltage values, if the floating voltage value of output meets preset voltage values, then perform step 203,
If the floating voltage value of output is unsatisfactory for preset voltage values, then perform step 210.
It should be noted that aforesaid preset voltage values can be the range of voltage values pre-set, and in advance
The magnitude of voltage put with aforesaid to preset constant voltage values 12V corresponding, can be such as 10.8V extremely
13.2V, does not specifically limit herein.
203, the load voltage values of power panel output is detected, and judge whether load voltage values meets
Preset voltage values, the most then perform step 204, if it is not, then perform step 210；
In the present embodiment, after determining that the floating voltage value that power panel exports meets preset voltage values, to electricity
The magnitude of voltage of the load of source plate output detects, it is judged that whether the magnitude of voltage of this load meets preset voltage
Value, if the magnitude of voltage of load meets preset voltage values, then performs step 204, if the magnitude of voltage of load is discontented with
Foot preset voltage values, then perform step 210.
It should be noted that aforesaid preset voltage values can be the range of voltage values pre-set, and in advance
The magnitude of voltage put with aforesaid to preset constant voltage values 12V corresponding, can be such as 10.8V extremely
13.2V, does not specifically limit herein.
204, power panel is carried out short circuit process, and judges whether output voltage values is 0V, the most then
Perform step 205, if it is not, then perform step 210；
After floating voltage and load voltage determine and meet preset voltage values, the feeder ear of power panel is entered
Row short circuit processes, at this time, it may be necessary to judge whether output voltage values is 0V, if output voltage values is 0V,
Then perform step 205, if output voltage values is not 0V, then perform step 210.
205, the power panel after processing short circuit carries out constant voltage detection according to preset time period value, and judges voltage
It is worth whether 0V, the most then performs step 206, if it is not, then perform step 210；
When the feeder ear of power panel being carried out after short circuit processes, need to continue power panel according to preset time period
Value carries out constant voltage detection, it is judged that whether the magnitude of voltage of output is always 0V in preset time period, if output
Magnitude of voltage is always 0V in preset time period, then perform step 206, if the magnitude of voltage of output is when preset
It is not 0V in length, then performs step 210.
It should be noted that this preset time period can be such as 0.5 second, specifically do not limit herein.
206, power panel is carried out constant current detection, and judges whether output current value meets preset constant current value,
The most then perform step 207, if it is not, then perform step 210；
In the present embodiment, when processing and be sized after magnitude of voltage is 0V according to preset time period short circuit, it is right to need
Power panel carries out constant current detection, and judges whether the current value of output meets preset constant current value, if output
Current value meets preset constant current value, then perform step 207, if the current value of output is unsatisfactory for preset constant current value,
Then perform step 210.
It is understood that aforesaid power supply is carried out constant current detection before, need to pre-set input
Constant current parameter value, can be such as 0.5A, and input 50V magnitude of voltage, specifically do not do herein
Limit, aforesaid preset constant current value can be the value range of preset constant electric current, can be such as 0.4A extremely
0.6A, does not specifically limit herein.
It should be noted that preset constant current value possesses relative with the constant current parameter value pre-setting input
The relation answered.
207, power panel is carried out discharge process；
In the present embodiment, after power panel is carried out constant current detection, closedown is needed to input to power panel
Alternating current power supply, the most just carries out discharge process to power panel, it is to be understood that this discharge process is permissible
It is that the residual voltage of the electrochemical capacitor to power panel carries out discharge process completely.
Should be noted that, this discharge process can be according to carrying out discharge process in preset time, if not
Meet preset time, or electric discharge does not complete, and performs step 210.
208, power panel is carried out physical label process；
After discharge process completes, it is meant that the performance of this power panel is qualified, need feasible to this
Power panel carries out physical label process.
It should be noted that it can be to install marking pen on electromagnetic valve by output that this physical label processes
Signal controls electromagnetic valve so that qualified mark put on by this power panel by marking pen, such as, can be " ok "
Mark, does not specifically limit herein.
209, power panel test result is carried out upload process.
After discharge process completes, it is also possible to the test result of power panel is uploaded to PC end and carries out recording also
Preserve test result.
It is understood that this test result can also include the result of each pacing examination.
210, close power supply, power panel is carried out discharge process, sends miscue and by error message
Pass.
In the present embodiment, in each step of abovementioned steps 201 to step 207, when power panel is in preliminary survey
During when being judged as NO, need to close the alternating current power supply inputing to power panel, the most just power panel entered
Row discharge process, it is to be understood that this discharge process can be the residual of the electrochemical capacitor to power panel
Voltage carries out discharge process completely, sends wrongheaded information, such as, can be to represent miscue
Miscue lamp bright, or the miscue sound of miscue, the result of error message is uploaded simultaneously
Carry out recording and preserving error result to PC end.
It is understood that aforesaid error message can be that step 201 is to step each in step 207
The error message of the judged result of test.
In the present embodiment, carry twice magnitude of voltage detection by power panel being carried out idling, and power panel is entered
Row constant current detects, thus, determine that magnitude of voltage that power panel exports and current value meet preset voltage values respectively
Design with preset current value, it is achieved that the function automatically tested power panel, solves meanwhile
Instantly cause higher fault rate due to manual testing's power panel, and the technology causing testing efficiency low is asked
Topic, and the power supply of input power plate is carried out current limliting process, not only protection power panel will not be because of input
The excessive factor of electric current cause damage, thus, improve the function that power panel is tested automatically further, with
Time, processed by short circuit and power panel output voltage is detected by preset time period, just achieve in preliminary survey situation
Under the most perfect test function of each electronic component of power panel, sentenced by each step meanwhile
Disconnected, if judged result correctly and continues follow-up test step, miscue information will be sent if incorrect,
And upload error message, embody the intelligent of this power panel method of testing the most further.
The above is that the detailed process to power panel preliminary survey is described in detail, below will be to power panel repetition measurement
Detailed process be described in detail, refer to Fig. 3, embodiments provide a kind of power panel and survey
One embodiment of method for testing includes:
301, judge whether the power panel current value after current limliting process meets preset cut-off current, the most then hold
Row step 302, if it is not, then perform step 310；
In the present embodiment, when it needs to be determined that during the reliability of power panel performance, such as test the conjunction of power panel
Lattice, need to test power panel, first the power supply of input power plate are carried out current limliting process, should
It can be to carry out current limliting according to preset cut-off current that current limliting processes, and then judges the power panel electricity after current limliting process
Whether flow valuve meets preset cut-off current, if the power panel current value after current limliting processes meets preset cut-off current,
Then perform step 302, if the power panel current value after current limliting processes is unsatisfactory for preset cut-off current, then perform step
Rapid 310.
It should be noted that needed to preset constant before the power supply current limliting of input power plate is processed
Magnitude of voltage, such as, can be 12V, not limit.
Aforesaid preset cut-off current can be that the current value being limited by current-limiting circuit and being not more than 2A is exported.
302, judge whether the floating voltage value that the power panel after current limliting exports meets preset voltage values, if so,
Then perform step 303, if it is not, then perform step 310；
After the power supply of input power plate is carried out current limliting process according to preset cut-off current, defeated to power panel
The floating voltage gone out carries out floating voltage value detection, it is judged that the floating voltage value of the power panel output after current limliting
Whether meet preset voltage values, if the floating voltage value of output meets preset voltage values, then perform step 303,
If the floating voltage value of output is unsatisfactory for preset voltage values, then perform step 310.
It should be noted that aforesaid preset voltage values can be the range of voltage values pre-set, and in advance
The magnitude of voltage put with aforesaid to preset constant voltage values 12V corresponding, can be such as 10.8V extremely
13.2V, does not specifically limit herein.
303, the load voltage values of power panel output is detected, and judge whether load voltage values meets
Preset voltage values, the most then perform step 304, if it is not, then perform step 310；
In the present embodiment, after determining that the floating voltage value that power panel exports meets preset voltage values, to electricity
The magnitude of voltage of the load of source plate output detects, it is judged that whether the magnitude of voltage of this load meets preset voltage
Value, if the magnitude of voltage of load meets preset voltage values, then performs step 304, if the magnitude of voltage of load is discontented with
Foot preset voltage values, then perform step 310.
It should be noted that aforesaid preset voltage values can be the range of voltage values pre-set, and in advance
The magnitude of voltage put with aforesaid to preset constant voltage values 12V corresponding, can be such as 10.8V extremely
13.2V, does not specifically limit herein.
304, power panel is carried out constant current detection, and judges whether output current value meets preset constant current value,
The most then perform step 305, if it is not, then perform step 310；
In the present embodiment, after floating voltage and load voltage determine to meet preset voltage values, it is right to need
Power panel carries out constant current detection, and judges whether the current value of output meets preset constant current value, if output
Current value meets preset constant current value, then perform step 305, if the current value of output is unsatisfactory for preset constant current value,
Then perform step 310.
It is understood that aforesaid power supply is carried out constant current detection before, need to pre-set input
Constant current parameter value, can be such as 0.5A, and input 50V magnitude of voltage, specifically do not do herein
Limit, aforesaid preset constant current value can be the value range of preset constant electric current, can be such as 0.4A extremely
0.6A, does not specifically limit herein.
It should be noted that preset constant current value possesses relative with the constant current parameter value pre-setting input
The relation answered.
305, power panel carries out cut out constant current process；
After power panel is carried out constant current detection, constant current being processed and close, it can be to stop that this constant current processes
That stops constant current inputs to power panel.
It is understood that this closedown constant current processes if turned off unsuccessful, power panel still inputs constant
Electric current, then perform step 310.
306, judge that the preset constant current value of power panel does not exists, the most then perform step 307, if
No, then perform step 310；
After stopping constant current input, the output current value of power panel is detected, it is judged that power supply
Whether the preset constant current value of plate exists, if the preset constant current value of power panel does not exists, then performs step 307,
If the preset constant current value of power panel exists, then performing step 310, this constant current value pre-set is permissible
It is the value range of preset constant electric current, such as, can be 0.4A to 0.6A, specifically do not limit herein.
307, power panel is carried out discharge process；
In the present embodiment, after determining that the constant current value pre-set does not exists, need to close input
To the alternating current power supply of power panel, the most just power panel is carried out discharge process, it is to be understood that this is put
Electric treatment can be that the residual voltage of the electrochemical capacitor to power panel carries out discharge process completely.
Should be noted that, this discharge process can be according to carrying out discharge process in preset time, if not
Meet preset time, or electric discharge does not complete, and performs step 310.
308, power panel is carried out physical label process；
After discharge process completes, it is meant that the performance of this power panel is qualified, need feasible to this
Power panel carries out physical label process.
It should be noted that it can be to install marking pen on electromagnetic valve by output that this physical label processes
Signal controls electromagnetic valve so that qualified mark put on by this power panel by marking pen, such as, can be " ok "
Mark, does not specifically limit herein.
309, power panel test result is carried out upload process.
After discharge process completes, it is also possible to the test result of power panel is uploaded to PC end and carries out recording also
Preserve test result.
It is understood that this test result can also include the result of each pacing examination.
310, close power supply, power panel is carried out discharge process, sends miscue and by error message
Pass.
In the present embodiment, in each step of abovementioned steps 301 to step 308, when power panel is at repetition measurement
During when being judged as NO, need to close the alternating current power supply inputing to power panel, the most just power panel entered
Row discharge process, it is to be understood that this discharge process can be the residual of the electrochemical capacitor to power panel
Voltage carries out discharge process completely, sends wrongheaded information, such as, can be to represent miscue
Miscue lamp bright, or the miscue sound of miscue, the result of error message is uploaded simultaneously
Carry out recording and preserving error result to PC end.
It is understood that aforesaid error message can be that step 301 is to step each in step 308
The error message of the judged result of test.
In the present embodiment, carry twice magnitude of voltage detection by power panel being carried out idling, and power panel is entered
Row constant current detects, thus, determine that magnitude of voltage that power panel exports and current value meet preset voltage values respectively
Design with preset current value, it is achieved that the function automatically tested power panel, solves meanwhile
Instantly cause higher fault rate due to manual testing's power panel, and the technology causing testing efficiency low is asked
Topic, and the power supply of input power plate is carried out current limliting process, not only protection power panel will not be because of input
The excessive factor of electric current cause damage, thus, improve the function that power panel is tested automatically further, with
Time, not existing by power panel being stopped the current value of input constant current detection power panel output, just achieving
The test function that the most perfect each electronic component of power panel in the case of repetition measurement is aging, meanwhile,
Judged by each step, if judged result correctly and continues follow-up test step, will send if incorrect
Miscue information, and upload error message, embody the intelligence of this power panel method of testing the most further
Property.
The detailed process of power panel repetition measurement is described in detail, for ease of understanding, will answer with one below
By scene, the process of embodiment illustrated in fig. 3 power panel repetition measurement is described in detail, the embodiment of the present invention
Another embodiment providing a kind of power panel method of testing includes:
In the present embodiment, when it needs to be determined that during the reliability of power panel performance, such as test the conjunction of power panel
Lattice, need to test power panel, first pass through external test fixture fixed power source plate, and first
Walking the power supply to input power plate and carry out current limliting process, it can be according to preset cut-off current pair that this current limliting processes
The electric current of input power plate carries out current limliting, needs whether the power panel current value after judging current limliting process meets
Preset cut-off current, the most then carry out follow-up test step, if it is not, close power supply, carries out power panel
Discharge process, sends miscue and error message is uploaded, it should be noted that limiting power panel
Stream needs to preset constant voltage values before processing, such as, can be 12V, not limit,
Aforesaid preset cut-off current can be that the current value being limited by current-limiting circuit and being not more than 2A is exported, this current limliting
Circuit can be as it is shown in fig. 7, by Guan Bi switch S1, now alternating current is by the switch S1 of Guan Bi
Inputing to and switch the bulb DP work that S1 connects, now electric current is limited to the operating current of bulb DP,
And determining that the output voltage values of power supply meets preset voltage values, the switch S2 being closed again Fig. 4 just completes defeated
The power supply entering power panel carries out current limliting process, when carrying out the power supply of input power plate according to preset cut-off current
After current limliting processes, the floating voltage of power panel output is carried out floating voltage value detection, it is judged that this zero load
Whether magnitude of voltage meets preset voltage values, the most then carry out follow-up test step, if it is not, close power supply,
Power panel is carried out discharge process, sends miscue and error message is uploaded, it should be noted that
Aforesaid preset voltage values can be the range of voltage values pre-set, and preset magnitude of voltage is with aforesaid
Preset constant voltage values 12V corresponding, such as, can be 10.8V to 13.2V, herein the most not
Limit, after determining that the floating voltage value that power panel exports meets preset voltage values, power panel is exported
The magnitude of voltage of load detect, it is judged that whether the magnitude of voltage of this load meets preset voltage values, if so,
Then carry out follow-up test step, if it is not, close power supply, power panel is carried out discharge process, sends mistake
Error message is also uploaded, it should be noted that aforesaid preset voltage values can be to pre-set by prompting
Range of voltage values, and preset magnitude of voltage is with aforesaid to preset constant voltage values 12V corresponding,
Can be such as 10.8V to 13.2V, specifically not limit, it is to be understood that when power end carries herein
When the load of confession cannot meet, the external expansion equipment external electronic load of access can be connected by serial ports defeated
Enter control signal, after the floating voltage exported and load voltage determine and meet preset voltage values, need
Power panel is carried out constant current detection, and judges whether the current value of output meets preset constant current value, if so,
Then carry out follow-up test step, if it is not, then close power supply, power panel is carried out discharge process, sends mistake
By mistake error message is also uploaded by prompting, aforesaid power supply is carried out constant current detection before, need to set in advance
Put the constant current parameter value of input, such as, can be 0.5A, and input 50V magnitude of voltage, have herein
Body does not limits, and aforesaid preset constant current value can be the value range of preset constant electric current, such as, can be
0.4A to 0.6A, does not specifically limit herein, it should be noted that preset constant current value with pre-set defeated
The constant current parameter value entered possesses corresponding relation, after power panel is carried out constant current detection, and will
Constant current processes closes, this constant current process can be off constant current input to power panel, it is possible to understand that
, this closedown constant current processes if turned off unsuccessful, and power panel still inputs constant current, then close
Power supply, carries out discharge process to power panel, sends miscue and error message is uploaded, when stopping perseverance
After determining electric current input, the output current value of power panel is detected, it is judged that the constant electricity pre-set
Flow valuve does not exists, the most then carry out follow-up test step, if it is not, then close power supply, to power supply
Plate carries out discharge process, sends miscue and error message is uploaded, this constant current pre-set
Value can be the value range of preset constant electric current, such as, can be 0.4A to 0.6A, does not specifically limit herein
Fixed, in the present embodiment, after determining that the constant current value pre-set does not exists, need to close input
To the alternating current power supply of power panel, the most just power panel is carried out discharge process, it is to be understood that this is put
Electric treatment can be that the residual voltage of the electrochemical capacitor to power panel carries out discharge process completely, it is necessary to says
Bright, this discharge process can be according to carrying out discharge process in preset time, if be unsatisfactory for preset
Between, or electric discharge do not complete, close power supply, power panel is carried out discharge process, sends mistake and carry
Show and error message uploaded, after discharge process completes, it is meant that the performance of this power panel is qualified,
Needing this feasible power panel is carried out physical label process, it can be at electromagnetic valve that this physical label processes
Upper installation marking pen controls electromagnetic valve by output signal so that it is qualified that this power panel is put on by marking pen
Mark, such as, can be " ok " mark, specifically not limit, after discharge process completes herein, it is also possible to
The test result of power panel being uploaded to PC end carry out recording and preserving test result, this test result also may be used
With include each pacing examination as a result, it is possible to be understood by, in the test process to power panel, also
Can be that the progress to each step is pointed out, after e.g. power panel floating voltage having been detected,
Display 20%, after having detected power panel load voltage, shows 40%, at power panel constant current closedown
Being 60% after managing and detect constant current, aforesaid percentages show can be such as by warning light, also may be used
To be to be shown by LCD, specifically do not limit, in aforesaid each step, when power panel is multiple herein
When being judged as NO during survey, need to close the alternating current power supply inputing to power panel, the most just to power panel
Carry out discharge process, it is to be understood that this discharge process can be the residual of the electrochemical capacitor to power panel
Stay voltage to carry out discharge process completely, send wrongheaded information, such as, can be to represent mistake to carry
The miscue lamp shown is bright, or the miscue sound of miscue, simultaneously by the result of error message
Reaching PC end and carry out recording and preserving error result, aforesaid error message can be the test of each step
The error message of judged result.
In the present embodiment, carry twice magnitude of voltage by the idling that power panel is exported and detect, and to electricity
Source plate carries out constant current detection, thus, determine that the magnitude of voltage of output and current value meet preset voltage values respectively
Design with preset current value, it is achieved that the function automatically tested power panel, solves meanwhile
Instantly cause higher fault rate due to manual testing's power panel, and the technology causing testing efficiency low is asked
Topic, and the power supply of input power plate is carried out current limliting process, not only protection power panel will not be because of input
The excessive factor of electric current causes damage, thus, improve the function that power panel is tested automatically further, meanwhile,
Not existing by power panel being stopped the current value of input constant current detection power panel output, just achieving multiple
The test function that the most perfect each electronic component of power panel in the case of survey is aging, and, each
Flow process carries out progress and completes the function of prompting so that the test of power panel is the most intelligent, meanwhile, logical
Cross each step to judge, if judged result correctly and continues follow-up test step, mistake will be sent if incorrect
Information by mistake, and upload error message, embody the intelligent of this power panel method of testing the most further.
Refer to Fig. 4, an embodiment bag of a kind of power supply board test device provided in the embodiment of the present invention
Include:
Flow-restriction 401, for the power supply of input power plate is carried out current limliting process according to preset cut-off current,
Such as this flow-restriction 401 can be circuit diagram as shown in Figure 7；
Dead cells 402, the floating voltage value of the power panel output after determining current limliting meets preset voltage
Value；
Load unit 403, for detecting the load voltage values of power panel output, and determines load electricity
Pressure value meets preset voltage values, it is to be understood that load unit 403, it is also possible to be to be connected by serial ports
External expansion equipment obtains electronic load.
It should be noted that this external expansion equipment is known technology, the most just repeat no more.
Constant current unit 404, for power panel carries out constant current detection, and determines and meets preset constant current value；
Discharge cell 405, for carrying out discharge process to power panel.
In the present embodiment, the idling exported power panel by dead cells 402 and load unit 403 is carried
Twice magnitude of voltage detects, and constant current unit 404 also carries out constant current detection to power panel, thus, determine
Magnitude of voltage and the current value of output meet preset voltage values and the design of preset current value respectively, it is achieved that right
The function that power panel is tested automatically, solves instantly owing to manual testing's power panel causes relatively meanwhile
High fault rate, and cause the low technical problem of testing efficiency, and the power supply of input power plate is entered
Row current limliting processes, and not only protection power panel will not cause damage because of the factor that input current is excessive, thus,
Improve the function that power panel is tested automatically further.
The above is that each unit function to the power supply board test device that the embodiment of the present invention provides carries out detailed
Describe, below the function of the subelement to the constant current unit in the case of preliminary survey is described in detail, please
Refering to Fig. 5, another embodiment of a kind of power supply board test device provided in the embodiment of the present invention includes:
Flow-restriction 501, for the power supply of input power plate is carried out current limliting process according to preset cut-off current,
Such as this flow-restriction 501 can be circuit diagram as shown in Figure 7；
Dead cells 502, the floating voltage value of the power panel output after determining current limliting meets preset voltage
Value；
Load unit 503, for detecting the load voltage values of power panel output, and determines load electricity
Pressure value meets preset voltage values, it is to be understood that load unit 503, it is also possible to be to be connected by serial ports
External expansion equipment obtains electronic load.
It should be noted that this external expansion equipment is known technology, the most just repeat no more.
Constant current unit 504, for power panel carries out constant current detection, and determines and meets preset constant current value；
Wherein, constant current unit 504 can further include:
Short circuit subelement 5041, for carrying out short circuit process to power panel；
Constant voltage subelement 5042, is carried out according to preset time period value for the power panel after processing short circuit
Constant voltage detects, if output voltage values is 0V, then power panel is carried out constant current detection, otherwise closes power supply,
Trigger discharge cell 505, concurrently make mistake and point out and error message is uploaded；
First constant current subelement 5043, if the current value for constant current detection output meets preset constant current value,
Then trigger discharge cell 505, otherwise close power supply, trigger discharge cell 505, concurrently make mistake prompting also
Error message is uploaded.
Discharge cell 505, for carrying out discharge process to power panel.
Physical label unit 506, for carrying out physical label process to power panel.
Uploading unit 507, for carrying out upload process by power panel test result.
Progress display unit 508, is used for obtaining flow-restriction 501, dead cells 502, load unit 503,
The process progress of constant current unit 504 and discharge cell 505 also shows, this progress display unit can also enter
One step is used for flow-restriction 501, dead cells 502, load unit 503, constant current unit 504 and electric discharge
The process of unit 505 is the most successfully pointed out, and this prompting can be to represent successfully or the warning light of failure,
Can also is that and represent successfully or failed prompt tone.
In the present embodiment, the idling exported power panel by dead cells 502 and load unit 503 is carried
Twice magnitude of voltage detects, and constant current unit 504 also carries out constant current detection to power panel, thus, determine
Magnitude of voltage and the current value of output meet preset voltage values and the design of preset current value respectively, it is achieved that right
The function that power panel is tested automatically, solves instantly owing to manual testing's power panel causes relatively meanwhile
High fault rate, and cause the low technical problem of testing efficiency, and the power supply of input power plate is entered
Row current limliting processes, and not only protection power panel will not cause damage because of the factor that input current is excessive, thus,
Improve the function that power panel is tested automatically further, carried out at short circuit by short circuit subelement 5041 meanwhile
Power panel output voltage is detected by reason and constant voltage subelement 5042 according to preset time period, just achieves in preliminary survey
In the case of the most perfect test function of each electronic component of power panel, and, shown by progress
Show that unit 508 carries out progress and completes the function of prompting each unit so that the test of power panel is more
Intellectuality, is the most successfully pointed out each unit testing by progress display unit 508, just enters one
Step embodies the intelligent of this power supply board test device.
The above is that the function of the subelement to the constant current unit in the case of preliminary survey is described in detail, below
The function of the subelement to the constant current unit in the case of repetition measurement is described in detail, refers to Fig. 6, this
Another embodiment of a kind of power supply board test device provided in inventive embodiments includes:
Flow-restriction 601, for the power supply of input power plate is carried out current limliting process according to preset cut-off current,
Such as this flow-restriction 601 can be circuit diagram as shown in Figure 7；
Dead cells 602, the floating voltage value of the power panel output after determining current limliting meets preset voltage
Value；
Load unit 603, for detecting the load voltage values of power panel output, and determines load electricity
Pressure value meets preset voltage values, it is to be understood that load unit 603, it is also possible to be to be connected by serial ports
External expansion equipment obtains electronic load.
It should be noted that this external expansion equipment is known technology, the most just repeat no more.
Constant current unit 604, for power panel carries out constant current detection, and determines and meets preset constant current value；
Wherein, constant current unit 604 can further include:
Second constant current subelement 6041, for carrying out constant current detection to power panel, if output current value meets
Preset constant current value, then trigger constant current and close subelement 6042, otherwise close power supply, trigger discharge cell 605,
Concurrently make mistake and point out and error message is uploaded；
Subelement 6042 is closed in constant current, processes for power panel carries out cut out constant current；
Determine subelement 6043, for after carrying out closing constant current process, if the preset of power panel being detected
Constant current value does not exists, then trigger discharge cell 605, otherwise close power supply, triggers discharge cell 605, and
Send miscue and error message is uploaded.
Discharge cell 605, for carrying out discharge process to power panel.
Physical label unit 606, for carrying out physical label process to power panel.
Uploading unit 607, for carrying out upload process by power panel test result.
Progress display unit 608, is used for obtaining flow-restriction 601, dead cells 602, load unit 603,
The process progress of constant current unit 604 and discharge cell 605 also shows, this progress display unit can also enter
One step is used for flow-restriction 601, dead cells 602, load unit 603, constant current unit 604 and electric discharge
The process of unit 605 is the most successfully pointed out, and this prompting can be to represent successfully or the warning light of failure,
Can also is that and represent successfully or failed prompt tone.
In the present embodiment, the idling exported power panel by dead cells 602 and load unit 603 is carried
Twice magnitude of voltage detects, and constant current unit 604 also carries out constant current detection to power panel, thus, determine
Magnitude of voltage and the current value of output meet preset voltage values and the design of preset current value respectively, it is achieved that right
The function that power panel is tested automatically, solves instantly owing to manual testing's power panel causes relatively meanwhile
High fault rate, and cause the low technical problem of testing efficiency, and the power supply of input power plate is entered
Row current limliting processes, and not only protection power panel will not cause damage because of the factor that input current is excessive, thus,
Improve the function that power panel is tested automatically further, meanwhile, close subelement 6042 to power supply by constant current
Plate stops input constant current, and determines that subelement 6043 detects the current value of power panel output and do not exists, just real
Show the test function that the most perfect each electronic component of power panel in the case of repetition measurement is aging, with
And, by progress display unit 608, each unit is carried out progress and complete the function of prompting so that power supply
The test of plate is the most intelligent, is the most successfully entered each unit testing by progress display unit 608
Row prompting, embodies the intelligent of this power supply board test device the most further.
Those skilled in the art is it can be understood that arrive, and for convenience and simplicity of description, above-mentioned retouches
The specific works process of the system stated, device and unit, is referred to the correspondence in preceding method embodiment
Process, does not repeats them here.
In several embodiments provided herein, it should be understood that disclosed system, device and
Method, can realize by another way.Such as, device embodiment described above is only shown
Meaning property, such as, the division of described unit, be only a kind of logic function and divide, actual can when realizing
There to be other dividing mode, the most multiple unit or assembly can in conjunction with or be desirably integrated into another
System, or some features can ignore, or do not perform.Another point, shown or discussed each other
Coupling direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, device or unit
Or communication connection, can be electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate, makees
The parts shown for unit can be or may not be physical location, i.e. may be located at a place,
Or can also be distributed on multiple NE.Can select according to the actual needs part therein or
The whole unit of person realizes the purpose of the present embodiment scheme.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit,
Can also be that unit is individually physically present, it is also possible to two or more unit are integrated in a list
In unit.Above-mentioned integrated unit both can realize to use the form of hardware, it would however also be possible to employ software function list
The form of unit realizes.
If described integrated unit realizes and as independent production marketing using the form of SFU software functional unit
Or when using, can be stored in a computer read/write memory medium.Based on such understanding, this
The part that the most in other words prior art contributed of technical scheme of invention or this technical scheme
Completely or partially can embody with the form of software product, this computer software product is stored in one
In storage medium, including some instructions with so that computer equipment (can be personal computer,
Server, or the network equipment etc.) perform completely or partially walking of method described in each embodiment of the present invention
Suddenly.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD
Etc. the various media that can store program code.
The above, above example only in order to technical scheme to be described, is not intended to limit；
Although being described in detail the present invention with reference to previous embodiment, those of ordinary skill in the art should
Work as understanding: the technical scheme described in foregoing embodiments still can be modified by it, or to it
Middle part technical characteristic carries out equivalent；And these amendments or replacement, do not make appropriate technical solution
Essence depart from various embodiments of the present invention technical scheme spirit and scope.
Claims (8)
1. a power panel method of testing, it is characterised in that including:
The power supply of input power plate is carried out current limliting process according to preset cut-off current；
Determine that the floating voltage value that the described power panel after current limliting exports meets preset voltage values；
The load voltage values exporting described power panel detects, and determines that described load voltage values meets
Described preset voltage values；
Described power panel is carried out constant current detection, and determines and meet preset constant current value；
And described power panel is carried out discharge process；
Wherein, described power panel is carried out constant current detection, and determine and meet preset constant current value, to described electricity
Source plate carries out discharge process and specifically includes:
Described power panel is carried out short circuit process；
Described power panel after processing short circuit carries out constant voltage detection according to preset time period value, if output voltage
Value is 0V, then described power panel carries out constant current detection, otherwise closes power supply, carry out described power panel
Discharge process；
If the current value of described constant current detection output meets preset constant current value, then described power panel is put
Electric treatment, otherwise closes power supply, and described power panel is carried out discharge process.
Method the most according to claim 1, it is characterised in that described power panel is carried out constant current inspection
Survey, and determine and meet preset constant current value, described power panel is carried out discharge process and specifically includes:
Described power panel is carried out constant current detection, if the current value of output meets preset constant current value, then to institute
State power panel to carry out closing constant current process, otherwise close power supply, described power panel is carried out discharge process；
After carrying out described closedown constant current process, if the described preset constant current value of described power panel being detected not
Exist, then described power panel is carried out discharge process, otherwise close power supply, described power panel is put
Electric treatment.
Method the most according to claim 1, it is characterised in that described power panel is carried out at electric discharge
Also include after reason:
Described power panel is carried out physical label process；
And/or
Described power panel test result is carried out upload process.
Method the most according to claim 1 and 2, it is characterised in that otherwise close power supply, to institute
State power panel to carry out discharge process and specifically include:
Otherwise close power supply, described power panel is carried out discharge process；
Send miscue and error message is uploaded.
5. a power supply board test device, it is characterised in that including:
Flow-restriction, for carrying out current limliting process to the power supply of input power plate according to preset cut-off current；
Dead cells, the floating voltage value of the described power panel output after determining current limliting meets preset electricity
Pressure value；
Load unit, detects for the load voltage values exporting described power panel, and determines described
Load voltage values meets described preset voltage values；
Constant current unit, for described power panel is carried out constant current detection, determines and meets preset constant current value；
Discharge cell, for carrying out discharge process to described power panel；
Constant current unit specifically includes:
Short circuit subelement, for carrying out short circuit process to described power panel；
Constant voltage subelement, the described power panel after processing short circuit carries out constant voltage according to preset time period value
Detection, if output voltage values is 0V, then carries out constant current detection to described power panel, otherwise closes power supply,
Trigger described discharge cell, concurrently make mistake and point out and error message is uploaded；
First constant current subelement, if the current value for described constant current detection output meets preset constant current value,
Then triggering described discharge cell, otherwise close power supply, trigger described discharge cell, concurrently make mistake prompting
And error message is uploaded.
Power supply board test device the most according to claim 5, it is characterised in that
Constant current unit specifically includes:
Second constant current subelement, for carrying out constant current detection to described power panel, if output current value meets
Preset constant current value, then trigger constant current and close subelement, otherwise close power supply, trigger described discharge cell,
Concurrently make mistake and point out and error message is uploaded；
Subelement is closed in described constant current, processes for described power panel carries out cut out constant current；
Determine subelement, for after carrying out described closedown constant current process, if described power panel being detected
Described preset constant current value does not exists, then trigger described discharge cell, otherwise close power supply, put described in triggering
Electric unit, concurrently makes mistake and points out and error message uploaded.
Power supply board test device the most according to claim 5, it is characterised in that power panel test dress
Put and also include:
Physical label unit, for carrying out physical label process to described power panel；
And/or
Uploading unit, for carrying out upload process by described power panel test result.
8. according to the power supply board test device described in claim 5 or 6, it is characterised in that power panel is surveyed
Electricity testing device also includes:
Progress display unit, is used for obtaining described flow-restriction, described dead cells, described load unit,
The process progress of described constant current unit and described discharge cell, processes and successfully points out, and processes described mistake and carries
Show and show.
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| CN201410038994.6A CN103760499B (en) | 2014-01-26 | 2014-01-26 | Power panel testing method and device |
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| CN106324532A (en) * | 2016-09-26 | 2017-01-11 | 厦门友光工贸有限公司 | Test machine for LED driving power sources |
| CN107505502A (en) * | 2017-09-30 | 2017-12-22 | 陆阳 | A kind of voltage monitor |
| CN111505473A (en) * | 2019-01-31 | 2020-08-07 | 佛山市顺德区顺达电脑厂有限公司 | Power supply mosfet detection device |
| CN111157913A (en) * | 2020-02-18 | 2020-05-15 | 深圳市睿德电子实业有限公司 | Automatic discharge device after power filter capacitor test, ATE tester and discharge method |
| CN111383567B (en) * | 2020-03-18 | 2022-02-08 | 重庆京东方智慧电子系统有限公司 | Detection method and device for electronic paper |
| CN114089154A (en) * | 2021-10-28 | 2022-02-25 | 西门子电力自动化有限公司 | Test method and test device for relay protection device |
| CN114442019B (en) * | 2021-12-31 | 2023-11-14 | 苏州浪潮智能科技有限公司 | Test correction method and device of test tool and electronic equipment |
| CN114624620A (en) * | 2022-03-11 | 2022-06-14 | 深圳前海骁客影像科技设计有限公司 | Automatic test method and device for power supply system for liquid crystal screen aging test |
| CN117233649B (en) * | 2023-11-15 | 2024-03-01 | 深圳市鼎阳科技股份有限公司 | Electronic load, control method and medium |
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