CN113514752A - Circuit board multi-performance parameter synchronous test system and device - Google Patents
Circuit board multi-performance parameter synchronous test system and device Download PDFInfo
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- CN113514752A CN113514752A CN202110392939.7A CN202110392939A CN113514752A CN 113514752 A CN113514752 A CN 113514752A CN 202110392939 A CN202110392939 A CN 202110392939A CN 113514752 A CN113514752 A CN 113514752A
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
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Abstract
The application relates to the technical field of circuit board testing, especially, relate to a circuit board multi-performance parameter synchronous test system and device, include: the controller, the power module, the simulation smoking module, the test module includes: the device comprises a lamp testing unit, a charging testing unit, a static testing unit and a short-circuit testing unit, wherein the lamp testing unit is used for detecting whether a circuit board is short-circuited or not; the output test unit is used for detecting the output voltage and the output current of the circuit board in the smoking state; and the motor test unit is used for detecting the working state of the airflow switch on the circuit board. The workman is under the prerequisite of not changing test instrument, is convenient for carry out lamp test, the test of charging, quiescent current test to the circuit board of electron cigarette, effectively reduces the test step to be convenient for improve detection efficiency, and lamp test, the test of charging, short circuit test go on in step, and output test and motor test go on in step, when being convenient for further improve detection efficiency, effectively reduce detection error.
Description
Technical Field
The application relates to the technical field of circuit board testing, in particular to a system and a device for synchronously testing multiple performance parameters of a circuit board.
Background
In the mass production process of the PCBA, the quality of the produced PCBA is likely to vary due to the operational state of the equipment, human factors of the operator, and the like. In order to ensure the quality of subsequent electronic products, before the electronic products are assembled, functional tests, such as a charging test, a static current test, a short circuit test, an output voltage test, etc., are generally performed on the PCBA of the electronic products. However, different tests need to be performed on different stations, which results in higher labor cost and production cost of manufacturers, and lower detection efficiency, and is difficult to meet the detection requirements during mass manufacturing.
As a new electronic product, the quality of the PCBA of the electronic product determines the service life of the electronic product and the quality of experience brought to a user, so that workers are required to use different function test instruments to detect various parameters of the PCBA on different workbenches before leaving a factory so as to judge whether the product meets production requirements.
In a test system and a test method of an electronic cigarette PCBA disclosed in the prior application publication No. CN107783029A, a dc power supply and a power supply battery of the system are respectively connected with an input end of a relay, and an output end of the relay is connected with the electronic cigarette PCBA. By utilizing the large-range adaptability of the relay to the current, four testing stations are effectively gathered in the same system, and the static current test and the charging test can be carried out on the PCBA.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: because the test system can only carry out the static current test and the charging test on the PCBA, other test instruments are still required to carry out the detection of relevant parameters, the test procedures are more, and the detection efficiency is lower.
Disclosure of Invention
In order to improve the detection efficiency, the application provides a circuit board multi-performance parameter synchronous test system and device.
In a first aspect, the present application provides a circuit board multi-performance parameter synchronous test system, which adopts the following technical scheme:
a circuit board multi-performance parameter synchronous test system comprises:
a controller;
the power supply module is used for supplying power to the controller and the circuit board of the electronic cigarette;
the simulated smoking module is connected with the controller and is used for simulating the smoking state of the human body;
the test module, the test module is connected with the controller and is used for testing the performance parameter of circuit board, the test module includes:
the lamp testing unit is used for detecting the working state of the indicating lamp on the circuit board;
the charging test unit is used for detecting the charging state of the circuit board;
the static test unit is used for detecting the static current of the circuit board;
the short circuit testing unit is used for detecting whether the circuit board is short-circuited or not;
the output test unit is used for detecting the output voltage and the output current of the circuit board in the smoking state;
and the motor test unit is used for detecting the working state of the airflow switch on the circuit board.
By adopting the technical scheme, the lamp testing unit is used for detecting the working state of the indicating lamp on the circuit board, the charging testing unit is used for detecting the charging state of the circuit board, the static testing unit is used for detecting the static current of the circuit board, a worker can conveniently carry out lamp testing, charging testing and static current testing on the circuit board of the electronic cigarette on the premise of not replacing a testing instrument, the possibility of low efficiency caused by different functions of different equipment testing is effectively reduced, and therefore the detection efficiency is convenient to improve. And lamp test, charging test, short circuit test go on in step, and output test and motor test go on in step, when being convenient for further improve detection efficiency, effectively reduce detection error.
Optionally, still include and judge the module, it includes to judge the module:
the judging module is used for acquiring the performance parameters of the circuit board, comparing the performance parameters of the circuit board with a corresponding preset standard value and judging whether the circuit board is a defective product;
the counting module is used for counting the circuit boards with the same bad causes;
and the analysis module is used for classifying the circuit boards to be detected when the ratio of the number of the circuit boards with the same adverse reasons to the number of the detected circuit boards is greater than a preset first threshold value.
By adopting the technical scheme, the performance parameters of the circuit board to be tested are compared with the preset standard values, and whether the circuit board to be tested is a defective product is judged, so that the quality of the circuit board is improved conveniently.
Optionally, the classifying process in the step of classifying the circuit boards to be detected in the same batch when the ratio of the number of the circuit boards of the same bad reason to the number of the detected circuit boards is greater than a preset first threshold specifically includes:
obtaining the production time of the circuit boards in the bad reasons, and judging whether the circuit boards in the bad reasons are in the same production time period; if so, performing rework treatment on all circuit boards produced in the production time period; and if not, performing sampling inspection on the circuit boards to be detected in the same batch.
Through adopting above-mentioned technical scheme, when leading to the circuit board bad because of equipment running state and operator's human factor in a certain time quantum, unnecessary check-out time is effectively reduced to accessible this mode to be convenient for improve detection efficiency.
Optionally, the step of performing the spot check on the circuit boards to be detected in the same batch specifically includes:
acquiring the number of the circuit boards to be subjected to selective inspection, and extracting the corresponding circuit boards to be subjected to detection according to a preset selective inspection rule;
wherein, the number of spot checks X = (X1-X2) (Y/X2), X1 is the total number of the batch of circuit boards, X2 is the number of the circuit boards detected in the batch of circuit boards, and Y is the number of the defective products in the batch of circuit boards.
Optionally, the extracting the rule in the step of extracting the corresponding circuit board according to the preset extraction rule to detect specifically includes:
uniformly dividing the circuit boards to be detected into T sampling inspection groups according to the sampling inspection number X, and extracting one circuit board from each sampling inspection group for detection;
where T = number of spot checks X.
By adopting the technical scheme, one circuit board is arbitrarily extracted from each sampling inspection group for detection, so that the estimation of the whole circuit boards in the same batch is facilitated, the quality of the circuit boards in the same batch is conveniently judged, and the detection efficiency is conveniently improved while the detection quality is improved.
Optionally, the determining module further includes: the spot inspection judging module is used for judging whether the ratio of the number of the defective circuit boards subjected to spot inspection to the number of the circuit boards subjected to spot inspection is larger than a preset second threshold value or not, and if so, performing rework processing on the batch of circuit boards; and if not, continuing testing the batch of circuit boards.
By adopting the technical scheme, the detection efficiency of the circuit board is convenient to guarantee, and meanwhile, the detection quality of the circuit board is convenient to improve.
Optionally, the power module includes:
the power supply unit is used for supplying power to the controller and charging the circuit board to be tested;
and the battery unit is used for supplying power to the circuit board to be tested.
By adopting the technical scheme, the power supply module comprises a power supply unit and a battery unit, wherein the power supply unit is used for supplying power to the controller and charging the circuit board to be tested; the battery unit is used for supplying power to the circuit board to be tested, so that the normal operation of the system is convenient to guarantee.
Optionally, the test module further comprises a clear instruction module, the clear instruction module is connected with the controller and is used for sending a data clear instruction, and the controller clears the test data detected by the test module after receiving the data clear instruction sent by the clear instruction module.
By adopting the technical scheme, after a batch of circuit boards are tested, the zero clearing instruction module can be used for sending a data zero clearing instruction to the controller, and the controller can clear information such as test data stored in the controller and the number of the circuit boards in various bad reasons after receiving the data zero clearing instruction, so that the detection of the next batch of circuit boards is facilitated.
In a second aspect, the present application provides a device for synchronously testing multiple performance parameters of a circuit board, which adopts the following technical scheme:
a circuit board multi-performance parameter synchronous testing device comprises a box body, wherein a clamp is arranged on the box body, and the clamp comprises an upper clamping die and a lower clamping die which move relatively; the upper clamping die is provided with test thimbles corresponding to a plurality of test ports on the circuit board to be tested;
the lower clamping die is provided with a mounting groove for fixing a circuit board to be tested, the bottom end of the mounting groove is provided with an air inlet in a penetrating manner, and an airflow switch of the circuit board to be tested is positioned at the air inlet; an air pump is arranged in the box body and connected with the controller, and an output pipe of the air pump is communicated with the air inlet.
By adopting the technical scheme, when the corresponding test thimble is connected with the corresponding test port, the corresponding performance parameters of the circuit board to be tested can be conveniently obtained, the obtained performance parameters of the circuit board to be tested are sent to the controller, and whether the performance parameters of the circuit board to be tested are in the preset standard or not is judged through the judging module, so that whether the circuit board to be tested is a defective product or not is judged. On the premise of not changing a testing instrument, the testing device is convenient for testing a plurality of performance parameters of the circuit board, thereby being convenient for improving the detection efficiency.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the lamp test unit is used for detecting the operating condition of the indicator lamp on the circuit board, the charging test unit is used for detecting the charging condition of the circuit board, the static test unit is used for detecting the static current of the circuit board, and a worker can conveniently carry out lamp test, charging test and static current test on the circuit board of the electronic cigarette on the premise of not replacing a test instrument, so that the test steps are effectively reduced, and the detection efficiency is improved. The lamp test, the charging test, the static current test and the short circuit test can be carried out synchronously, and the output test unit and the motor test can be carried out synchronously, so that the detection efficiency is further improved, and the detection error is effectively reduced;
2. when the corresponding test thimble is connected with the corresponding test port, the corresponding performance parameters of the circuit board to be tested can be conveniently obtained, the obtained performance parameters of the circuit board to be tested are sent to the controller, and whether the performance parameters of the circuit board to be tested are within the preset standard or not is judged through the judging module, so that whether the circuit board to be tested is a defective product or not is judged; on the premise of not changing a testing instrument, the testing device is convenient for testing a plurality of performance parameters of the circuit board, thereby being convenient for improving the detection efficiency.
Drawings
Fig. 1 is a block flow diagram of a circuit board multi-performance parameter synchronous testing system according to an embodiment of the present application.
Fig. 2 is a block diagram of a test module according to an embodiment of the present disclosure.
Fig. 3 is a block diagram of a determining module according to an embodiment of the present disclosure.
Fig. 4 is a block diagram of a display module according to an embodiment of the present disclosure.
Fig. 5 is a schematic structural diagram of a circuit board multi-performance parameter synchronous testing device according to an embodiment of the present application.
Fig. 6 is another schematic structural diagram of a circuit board multi-performance parameter synchronous testing device according to an embodiment of the present application.
Description of reference numerals: 1. a controller; 2. a power supply module; 21. a power supply unit; 22. a battery cell; 3. a test module; 31. a lamp testing unit; 32. a charging test unit; 33. a static test unit; 34. a short circuit test unit; 35. an output test unit; 36. a motor test unit; 4. a judging module; 41. a judgment module; 42. a counting module; 43. an analysis module; 44. a sampling inspection judging module; 5. a display module; 51. a test result display unit; 52. a statistical data display unit; 53. a system information display unit; 54. a test state display unit; 6. a zero clearing instruction module; 7. a simulated smoking module; 8. a box body; 81. a display screen; 82. a clamp; 821. clamping the die; 822. clamping the die downwards; 83. a fixed mount; 84. quickly clamping; 85. a guide bar; 86. mounting grooves; 87. testing the thimble; 88. an air pump.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses a circuit board multi-performance parameter synchronous testing system. Referring to fig. 1, the device comprises a controller 1, a power supply module 2 for supplying power to the controller 1 and a circuit board to be tested, a smoke simulation module 7, a test module 3, a judgment module 4, a display module 5, a zero clearing instruction module 6 and a storage module, wherein the smoke simulation module 7, the test module 3, the judgment module 4, the display module 5, the zero clearing instruction module 6 and the storage module are all connected with the controller 1.
Referring to fig. 1, the test module 3 is configured to detect various performance parameters of the circuit board to be tested, and send the detected performance parameters to the controller 1, and the controller 1 is configured to send the received performance parameters to the display module 5 and the storage module; meanwhile, the controller 1 sends the received performance parameters to the judging module 4, and the judging module 4 is used for comparing the performance parameters with the corresponding preset standard values and judging whether the circuit board is a defective product.
In addition, the power module 2 includes a power unit 21 and a battery unit 22, the power unit 21 is used for supplying power to the controller 1 and charging the circuit board to be tested; the battery unit 22 is used for supplying power to the circuit board to be tested.
Referring to fig. 2, the test module 3 includes a lamp test unit 31, a charging test unit 32, a static test unit 33, a short test unit 34, an output test unit 35, and a motor test unit 36. The lamp testing unit 31 is used for detecting the working state of an indicator lamp on a circuit board, the charging testing unit 32 is used for detecting the charging state of the circuit board, the static testing unit 33 is used for detecting the static current of the circuit board, the short-circuit testing unit 34 is used for detecting whether the circuit board is short-circuited, the output testing unit 35 is used for detecting the output voltage and the output current of the circuit board in a smoking state, and the motor testing unit 36 is used for detecting the working state of an airflow switch on the circuit board. The workman is convenient for carry out lamp test, charge test, quiescent current test, short circuit test, output voltage and output current test and air current switch test to the circuit board of electron cigarette under the prerequisite of not changing test instrument, effectively reduces the possibility that uses different equipment test different functions to lead to inefficiency to be convenient for improve detection efficiency.
And lamp test, charging test, short circuit test go on in step, and output test and motor test go on in step, when being convenient for further improve detection efficiency, effectively reduce detection error.
Specifically, when a test is required, the power supply unit 21 supplies power to the controller 1, and the battery unit 22 supplies power to the circuit board to be tested. The static test unit 33 is configured to detect a static current of the circuit board, where the static current refers to a current when no signal is input, at this time, current information of the circuit board to be tested is obtained and sent to the controller 1, the controller 1 sends the obtained current information to the determination module 4, the static current of the circuit board to be tested is compared with a preset standard value through the determination module 4, and whether the static current of the circuit board to be tested is qualified is determined.
When a lamp test, a charge test and a short circuit test are required to be performed, the power supply unit 21 supplies power to the controller 1, the battery unit 22 supplies power to the circuit board to be tested, and meanwhile, the power supply unit 21 charges the circuit board to be tested, so that the indicator lamp on the circuit board to be tested is lightened, at the moment, the camera is adopted to acquire image information of the indicator lamp on the circuit board to be tested and send the acquired image information to the controller 1, and the received image information is compared with a preset standard value through the judgment module 4, so that whether the indicator lamp on the circuit board to be tested is qualified is judged; meanwhile, the input voltage information of the circuit board to be tested is acquired, the acquired input voltage information is sent to the judging module 4 through the controller 1, and whether the input voltage information of the circuit board to be tested is within a preset standard value or not is judged, so that the charging state of the circuit board to be tested is judged conveniently. In addition, the current information of the circuit board to be detected is acquired, the acquired input voltage information is sent to the judging module 4 through the controller 1, and whether the current information of the circuit board to be detected is within a preset standard value or not is judged, and the current value is increased under the short-circuit state, so that whether the short-circuit phenomenon exists in the circuit board to be detected or not is judged conveniently.
Referring to fig. 1 and 2, when an output test and a motor test are required, the controller 1 controls the simulated smoking module 7 to work, so as to simulate the state of the electronic cigarette when a human body smokes. Because the circuit board in the electronic cigarette is provided with the airflow switch, when the simulated smoking module 7 works, air suction is carried out, so that the airflow switch is turned on, and the electronic cigarette is in a working state; at the moment, the current information of the airflow switch on the circuit board to be tested is obtained, the output voltage and the output current of the circuit board in the smoking state are obtained at the same time, and whether the current information, the output voltage and the output current of the airflow switch of the circuit board to be tested are in the corresponding preset standard values or not is judged through the judging module 4. Through the operating condition of simulation electron cigarette, whether output voltage and output current and the air current switch of being convenient for under the test smoking state normally work to be convenient for further improve the accuracy that the circuit board detected.
Referring to fig. 3, the determination module 4 includes a determination module 41, a counting module 42, an analysis module 43, and a sampling check determination module 44. The judging module 41 is configured to receive each performance parameter of the circuit board sent by the controller 1, compare each performance parameter of the circuit board with a corresponding preset standard value, and judge whether the circuit board is a defective product. When the circuit board is tested to be a defective product, the controller 1 obtains the defective reasons of the circuit board and performs classified storage according to the categories of the defective reasons, meanwhile, the counting module 42 is used for counting the circuit boards with the same type of defective reasons, and the analyzing module 43 is used for performing classified processing on the circuit boards to be detected in the same batch when the ratio of the number of the circuit boards with any type of defective reasons to the number of the detected circuit boards reaches a preset first threshold value.
Specifically, the classification processing specifically includes:
and acquiring the production time of the circuit board in the bad reasons, and judging whether the circuit board in the bad reasons is in the same production time period, wherein the production time period takes hours as a unit. When the circuit boards with the bad reasons are all in the same production time period, obtaining the circuit boards produced in the production time period from the circuit boards to be detected in the same batch, and performing rework maintenance treatment on the circuit boards produced in the production time period; and when the circuit boards with the bad reasons are produced in different production time periods, performing sampling inspection on the circuit boards to be detected in the same batch. Wherein, all be provided with the bar code on every circuit board, the production time and the production number that can acquire this circuit board of scanning bar code.
Specifically, the spot check processing specifically includes:
and acquiring the number of the circuit boards to be subjected to selective inspection, and extracting the corresponding circuit boards to be subjected to detection according to a preset selective inspection rule. Wherein, the number of spot checks X = (X1-X2) (Y/X2), X1 is the total number of the batch of circuit boards, X2 is the number of the circuit boards detected in the batch of circuit boards, and Y is the number of the defective products in the batch of circuit boards.
In addition, the sampling rule specifically includes:
uniformly dividing the circuit boards to be detected into T sampling inspection groups according to the sampling inspection number X, and extracting one circuit board from each sampling inspection group for detection; where T = number of spot checks X.
For example, since the circuit board needs to be subjected to a lamp test, a charging test, a static test, a short circuit test, an output test, and a motor test, the types of the causes of the circuit board failure are classified into six types, and the counting module 42 calculates the number of the circuit boards included in the six types of causes of the failure. Assuming that the first threshold value is 30%, the total number of the batch of circuit boards is 120, the number of detected circuit boards is 30, the number of circuit boards with poor lamp test is 9, the number of circuit boards with poor charge test is 1, and the numbers of poor static test, poor short circuit test, poor output test and poor motor test are all 0; since the ratio of the circuit board with poor lamp test to the tested circuit board is 9/30=30%, the batch of circuit boards to be tested needs to be subjected to a spot check process.
And the number X = (120-30) ((9 + 1)/30) = 30), 30 circuit boards need to be subjected to spot inspection from the circuit boards to be detected, so that the circuit boards to be detected are uniformly divided into 30 spot inspection groups, and one circuit board is randomly selected from each spot inspection group for detection, thereby further improving the detection precision of the circuit boards.
The selective inspection judging module 44 is configured to judge whether a ratio of the number of defective circuit boards to the total number of circuit boards to be subjected to selective inspection is greater than a preset second threshold, return the batch of circuit boards to rework processing if the judgment is yes, and continue to test the batch of circuit boards if the judgment is no.
For example, assuming that the second threshold is set to 10%, the total number of the circuit boards to be spot-inspected is 33, and the number of the circuit boards to be spot-inspected is 2, since the ratio of the number of the circuit boards to be spot-inspected to the total number of the circuit boards to be spot-inspected is 2/33=0.61%, the testing of the batch of the remaining circuit boards to be detected is continued.
Referring to fig. 4, in the process of detecting the circuit board, the display module 5 displays various performance parameters of the circuit board in real time.
Referring to fig. 4, specifically, the display module 5 includes a test result display unit 51, a statistical data display unit 52, a system information display unit 53, and a test status display unit 54. The test result display unit 51 is used for displaying information such as a lamp test value, a charging test value, an output test value, a short circuit test value, a motor test result, a static test value and the like of a circuit board, the statistical data display unit 52 is used for displaying the number of the circuit boards and the number of the detected circuit boards in various bad reasons, the system information display unit 53 is used for displaying information such as input voltage, battery voltage, static voltage, load resistance, a hardware version, a software version and the like, and the test state display unit 54 is used for displaying the state of the circuit board in the test process and the test result of the circuit board, so that a tester can judge whether the circuit board is a bad product only by looking at the test result displayed on the test state display unit 54.
Referring to fig. 1, in addition, the circuit board is at the in-process of testing, and when each item performance parameter of circuit board shows on display module assembly 5, send to storage module and save to form real-time data, be convenient for look over in real time.
After a batch of circuit boards are tested, the test data of the batch of circuit boards are stored as historical data, so that the follow-up product tracing is facilitated.
Meanwhile, after a batch of circuit boards are tested, the clear instruction module 6 is used for sending a data clear instruction to the controller 1, and the controller 1 clears information such as test data displayed on the display module 5 and the number of the circuit boards in various bad reasons after receiving the data clear instruction, so that the next batch of circuit boards can be conveniently detected.
The implementation principle of the circuit board multi-performance parameter synchronous testing system in the embodiment of the application is as follows:
when the test is needed, the power supply unit 21 supplies power to the controller 1 and charges the circuit board to be tested, the battery unit 22 supplies power to the circuit board to be tested, the lamp test, the charging test, the static current test and the short circuit test are performed synchronously, and the output test unit 35 and the motor test are performed synchronously, so that the detection efficiency is further improved, and the detection error is effectively reduced.
Based on the system, the embodiment of the application also discloses a device for synchronously testing the multiple performance parameters of the circuit board. Referring to fig. 5, the device for synchronously testing multiple performance parameters of the circuit board comprises a box body 8, a display screen 81 is fixedly arranged on the box body 8, a controller is arranged in the box body 8 and connected with the display screen 81, and a starting button connected with the controller is arranged on the box body 8.
Specifically, box 8 includes box and lower box, goes up the box and passes through the hinge rotation with lower box and be connected, and goes up the box and fix with lower box through quick clamping and be connected, on the lower box and with last box contact's the terminal surface on the fixed pressure sensor who is connected with the controller that is provided with, pressure sensor acquires pressure signal in real time and sends to the controller. When the device is used, the upper box body and the lower box body are in a closed state, and the pressure sensor senses a pressure signal and sends the pressure signal to the controller; when the box body is opened, the pressure sensor does not sense a pressure signal, at the moment, the controller does not work any more, enters a use forbidding mode, and can be used only by being activated again, so that the possibility of mistakenly opening or disassembling the device in the use process is effectively reduced.
The box body 8 is provided with a fixing frame and a clamp 82 for fixing a circuit board to be tested, the clamp 82 comprises a lower clamping die 822 fixedly arranged on the box body 8 and an upper clamping die 821 arranged above the lower clamping die 822, and the top end of the lower clamping die 822 is provided with a mounting groove 86 for accommodating the circuit board to be tested. The fixing frame 83 is fixedly provided with a quick clamp 84, the quick clamp 84 is fixedly connected with the upper clamp mold 821 and is used for driving the upper clamp mold 821 to move up and down, and the circuit board to be tested is conveniently fixed.
Two guide rods 85 are fixedly arranged at the top end of the box body 8, and the upper clamping die 821 is arranged on the two guide rods 85 in a sliding mode, so that the upper clamping die 821 can be guided conveniently.
Referring to fig. 5 and 6, an air inlet is formed in the bottom end of the mounting groove 86 in a penetrating manner, an air flow switch of the circuit board to be tested is located at the air inlet, an air pump 88 is fixedly arranged in the box body 8, the air pump 88 is connected with the controller 1, and an output pipe of the air pump 88 is communicated with the air inlet.
Referring to fig. 5 and 6, a plurality of test ejector pins 87 are fixedly disposed at a bottom end of the upper clamping mold 821, and the battery unit is connected to the circuit board to be tested through the test ejector pins 87 and supplies power to the circuit board to be tested. Because the lamp test port, the charging test port, the output test port, the short circuit test port, the airflow switch test port and the quiescent current test port are preset on the circuit board to be tested, when the corresponding test thimble is connected with the corresponding test port, the corresponding performance parameters of the circuit board to be tested can be conveniently obtained, the obtained performance parameters of the circuit board to be tested are sent to the controller, and whether the performance parameters of the circuit board to be tested are within the preset standard or not is judged through the judgment module, so that whether the circuit board to be tested is a defective product or not is judged. Meanwhile, the controller sends the received performance parameters to the display screen 81 for display.
In addition, when the output test and the motor test of the circuit board to be tested need to be tested, the air pump 88 is started, the air pump 88 sucks air through the output pipe, so that the airflow switch of the circuit board to be tested is opened, the electronic cigarette is in a working state, and at the moment, the output voltage, the output current and the working state of the airflow switch of the circuit board in the smoking state can be synchronously tested.
When the circuit board needs to be tested, the circuit board is fixed in the mounting groove 86, the upper clamping die 821 is driven to move downwards, the testing ejector pins 87 are connected with corresponding testing ports on the circuit board, and meanwhile, the starting button is pressed, so that the controller works. At the moment, the acquired performance parameters of the circuit board to be tested are sent to the controller, and whether the performance parameters of the circuit board to be tested are within the preset standard or not is judged through the judging module, so that whether the circuit board to be tested is a defective product or not is judged. Meanwhile, the controller sends the received performance parameters to the display screen 81 for display. In the operation process, the tester only needs to click the start button and check the test result displayed on the display screen 81, so that the tester can simultaneously operate multiple devices, and the test efficiency is further improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A circuit board multi-performance parameter synchronous test system is characterized by comprising:
a controller (1);
a power module (2) for supplying power to the controller (1) and the circuit board of the electronic cigarette
The simulated smoking module (7) is connected with the controller (1) and is used for simulating the smoking state of a human body;
test module (3), test module (3) are connected and are used for the performance parameter of test circuit board with controller (1), test module (3) include:
the lamp testing unit (31) is used for detecting the working state of the indicator lamp on the circuit board;
a charging test unit (32) for detecting a charging state of the circuit board;
a static test unit (33) for detecting a static current of the circuit board;
a short circuit test unit (34) for detecting whether the circuit board is short-circuited;
the output test unit (35) is used for detecting the output voltage and the output current of the circuit board in the smoking state;
and a motor test unit (36) for detecting an airflow switch of the circuit board.
2. The circuit board multi-performance parameter synchronous test system according to claim 1, further comprising a judgment module (4), wherein the judgment module (4) comprises:
the judging module (41) is used for acquiring the performance parameters of the circuit board, comparing the performance parameters of the circuit board with a corresponding preset standard value and judging whether the circuit board is a defective product or not;
the counting module (42) is used for counting the circuit boards with the same bad causes;
and the analysis module (43) is used for classifying the circuit boards to be detected in the same batch when the ratio of the number of the circuit boards with the same adverse reasons to the number of the detected circuit boards is greater than a preset first threshold value.
3. The circuit board multi-performance parameter synchronous test system of claim 2, wherein: the classification processing method for classifying the circuit boards to be detected in the same batch when the ratio of the number of the circuit boards of the same bad reason to the number of the detected circuit boards is greater than a preset first threshold specifically comprises the following steps:
obtaining the production time of the circuit boards in the bad reasons, and judging whether the circuit boards in the bad reasons are in the same production time period; if so, performing rework treatment on all circuit boards produced in the production time period; and if not, performing sampling inspection on the circuit boards to be detected in the same batch.
4. The system for synchronously testing the multiple performance parameters of the circuit board according to claim 3, wherein the sampling process in the sampling process of the circuit boards to be tested in the same batch specifically comprises:
acquiring the number of the circuit boards to be subjected to selective inspection, and extracting the corresponding circuit boards to be subjected to detection according to a preset selective inspection rule;
the number of spot checks X = (X1-X2) (Y/X2), X1 is the total number of circuit boards, X2 is the number of detected circuit boards, and Y is the number of defective circuit boards.
5. The system for synchronously testing the multiple performance parameters of the circuit board according to claim 4, wherein the extracting the rule in the process of extracting the corresponding circuit board for detection according to the preset extraction rule specifically comprises:
uniformly dividing the circuit boards to be detected into T sampling inspection groups according to the sampling inspection number X, and extracting one circuit board from each sampling inspection group for detection;
where T = number of spot checks X.
6. The circuit board multi-performance parameter synchronous test system according to claim 3, wherein the judgment module (4) further comprises:
the selective inspection judging module (44) is used for judging whether the ratio of the number of the defective circuit boards subjected to selective inspection to the number of the circuit boards subjected to selective inspection is larger than a preset second threshold value or not, and performing rework processing on the circuit boards when the judgment is yes; and if not, continuing testing the circuit board.
7. The circuit board multi-performance parameter synchronous test system according to claim 1, wherein the power module (2) comprises:
the power supply unit (21) is used for supplying power to the controller (1) and charging the circuit board to be tested;
and the battery unit (22) is used for supplying power to the circuit board to be tested.
8. The circuit board multi-performance parameter synchronous test system of claim 1, wherein: the test module is characterized by further comprising a zero clearing instruction module (6), wherein the zero clearing instruction module (6) is connected with the controller (1) and is used for sending a data zero clearing instruction, and the controller (1) clears test data detected by the test module (3) after receiving the data zero clearing instruction sent by the zero clearing instruction module (6).
9. A testing device based on the multi-performance parameter synchronous testing system of the circuit board of any one of the above claims 1-8, characterized in that: the device comprises a box body (8), wherein the controller (1) is arranged in the box body (8), a clamp (82) is arranged on the box body (8), and the clamp (82) comprises an upper clamping die (821) and a lower clamping die (822) which move relatively; the upper clamping die (821) is provided with test thimbles (87) corresponding to a plurality of test ports on the circuit board to be tested;
the lower clamping die (822) is provided with a mounting groove (86) for fixing a circuit board to be tested, the bottom end of the mounting groove (86) is provided with an air inlet in a penetrating manner, and an airflow switch of the circuit board to be tested is positioned at the air inlet; an air pump (88) is arranged in the box body (8), the air pump (88) is connected with the controller (1), and an output pipe of the air pump (88) is communicated with the air inlet.
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