CN112557937A - DC/DC switching power supply function test system - Google Patents
DC/DC switching power supply function test system Download PDFInfo
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- CN112557937A CN112557937A CN202011247999.1A CN202011247999A CN112557937A CN 112557937 A CN112557937 A CN 112557937A CN 202011247999 A CN202011247999 A CN 202011247999A CN 112557937 A CN112557937 A CN 112557937A
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- 230000004888 barrier function Effects 0.000 claims description 2
- 238000011990 functional testing Methods 0.000 claims description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
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Abstract
The embodiment of the invention provides a DC/DC switching power supply function test system, which comprises: the testing machine box is provided with a supporting frame, and the DC/DC switching power supply to be tested is fixed on the testing machine box; the driving assembly is arranged on the supporting frame; the connection testing assembly comprises a probe, the probe is installed on the lower portion of the driving assembly, and the probe is pressed with the DC/DC switching power supply to be tested under the driving of the driving assembly so as to collect performance parameters of the DC/DC switching power supply to be tested. According to the DC/DC switching power supply function test system provided by the embodiment of the invention, power is supplied by pressing the probe, and the operation information of different circuits on the DC/DC switching power supply is acquired, so that the DC/DC switching power supply is automatically tested, the test efficiency is high, and the operation is simple and convenient. Only the DC/DC switching power supply is needed to be placed on the testing case, and the switch is started, so that the workload of operators is reduced, and the labor cost is reduced.
Description
Technical Field
The invention relates to the technical field of DC/DC switching power supply detection equipment, in particular to an automatic test system for a DC/DC switching power supply.
Background
The direct current conversion is to control the proportion of output voltage and input voltage by controlling the on and off of a switch tube, the proportion of the on time of the switch tube in the whole on and off period is called as the on duty ratio, and the switch power supply regulates the output voltage by regulating the duty ratio.
The DC/DC switching power supply is a power supply which utilizes the modern power electronic technology to control the on-off time ratio of a switching tube and maintain stable output voltage. The switching power supply is generally composed of a Pulse Width Modulation (PWM) control IC and a MOSFET. With the development and innovation of power electronic technology, the technology of the switching power supply is continuously innovated. At present, the switching power supply is widely applied to almost all electronic devices due to its characteristics of small size, light weight and high efficiency, and is an indispensable power supply mode for the rapid development of the electronic information industry.
At present, a universal meter or a test probe carried by a test instrument (such as a voltage, a current, a temperature, a power and the like) such as an instrument head is generally used for testing a switching power supply to manually point-test contacts on the power supply one by one, then data displayed by the test instrument is recorded, and finally the quality of the power supply is judged according to the measured data. The test method has the problems of incomplete test and low test efficiency, and simultaneously the test result has the problems of discreteness, poor repeatability, inaccuracy and the like. For the power supplies produced in large scale, one hundred percent quality inspection is required to be carried out on each part and product, and sampling inspection is not required, so that the requirements of detecting the whole performance of modern power supply products cannot be met by manual detection alone. And for the product comprising a plurality of models of power supplies, besides the single detection, the power supply testing of the plurality of models is also involved, so that higher requirements are put on the professional skills and proficiency of detection personnel, and therefore, the labor cost is increased inevitably.
Disclosure of Invention
The embodiment of the invention provides a DC/DC switching power supply function test system, which is used for overcoming the defects of low test efficiency, low accuracy and high labor cost existing in the prior art by depending on manual detection of a switching power supply and realizing automatic detection of the DC/DC switching power supply.
The embodiment of the invention provides a DC/DC switching power supply function test system, which comprises: the testing machine box is provided with a supporting frame, and the DC/DC switching power supply to be tested is fixed on the testing machine box; the driving assembly is mounted on the supporting frame; and the connection test assembly comprises a probe, the probe is arranged on the lower part of the driving assembly, and the probe is pressed with the DC/DC switching power supply to be tested under the driving of the driving assembly so as to acquire the performance parameters of the DC/DC switching power supply to be tested.
According to an embodiment of the invention, the DC/DC switching power supply function test system, the driving assembly includes: the cylinder is arranged on the supporting frame; the first connecting plate is arranged at the lower part of the cylinder and is connected with the cylinder; the second connecting plate is arranged in parallel with the first connecting plate and is connected with the first connecting plate; and the guide rod penetrates through the second connecting plate, one end of the guide rod is installed on the testing case, and the other end of the guide rod is installed on the supporting frame.
According to the DC/DC switching power supply function test system of one embodiment of the invention, the probes are penetratingly mounted on the first connecting plate and the second connecting plate.
According to the DC/DC switching power supply function test system provided by the embodiment of the invention, the connection test component further comprises a power connection column which is arranged at the lower part of the second connecting plate and can be connected with the test case.
The system for testing the function of the DC/DC switching power supply further comprises a limiting plate, wherein the limiting plate is arranged on the testing case to fix the DC/DC switching power supply to be tested.
According to the DC/DC switching power supply function test system provided by the embodiment of the invention, the test case is further provided with a plurality of connecting holes, and the connecting holes are formed around the limiting plate and can be connected with the power connection column.
The DC/DC switching power supply function test system further comprises safety gratings, wherein the safety gratings are installed on two sides of the support frame.
According to the DC/DC switching power supply function test system provided by the embodiment of the invention, the test case is also provided with a grounding column, and the grounding column is connected with an anti-static wrist strap.
According to the DC/DC switching power supply function test system provided by the embodiment of the invention, the test case is also provided with a code scanner, and the code scanner is used for scanning the two-dimensional code or the bar code of the DC/DC switching power supply to be tested.
According to one embodiment of the invention, the DC/DC switching power supply function test system further comprises a protective cover, and the protective cover is arranged outside the test cabinet.
According to the DC/DC switching power supply function test system provided by the embodiment of the invention, power is supplied by pressing the probe, and the operation information of different circuits on the DC/DC switching power supply is acquired, so that the DC/DC switching power supply is automatically tested, the test efficiency is high, and the operation is simple and convenient. Meanwhile, the DC/DC switching power supply function test system provided by the embodiment of the invention only needs to put the DC/DC switching power supply on the test case and start the switch, thereby reducing the workload of operators; the test result can be automatically analyzed and judged through the database in the power supply comprehensive test cabinet, detection personnel do not need to have more professional knowledge, manual reading errors are avoided, the influence of manual uncertain factors on power supply test is avoided, and labor cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a DC/DC switching power supply function testing system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an internal structure of the test chassis shown in fig. 1.
Reference numerals:
1: a test chassis; 2: a drive assembly; 4: a limiting plate; 5: a safety grating; 6: a protective cover; 11: a support frame; 12: starting a switch; 13: a scram switch; 14: a power switch; 15: a high-voltage alarm lamp; 16: an acousto-optic warning lamp; 17: a handle; 21: a cylinder; 22: a first connecting plate; 23: a second connecting plate; 24: a guide bar; 31: a power connection column; 32: a probe; 101: a CH1 channel; 102: a CH2 channel; 103: triggering an interface; 104: a back-infusion inlet; 105: a DC output interface; 106: a DC input interface; 107: a USB interface; 108: a DB9 interface; 109: an air source interface; 110: a ground post; 111: and a power interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The DC/DC switching power supply function test system of the embodiment of the present invention is described below with reference to fig. 1 and 2.
As shown in fig. 1, a DC/DC switching power supply function test system provided in an embodiment of the present invention includes: the test machine box 1, the driving assembly 2 and the connection test assembly. The DC/DC switching power supply to be tested is fixed on the testing case 1, the supporting frame 11 is installed on the testing case 1, and the driving assembly 2 is installed on the supporting frame 11. The connection test assembly comprises a probe 32, the probe 32 is installed on the lower portion of the driving assembly 2, the probe 32 can move up and down under the driving of the driving assembly 2, when the probe 32 moves down, the probe can be pressed with a DC/DC switching power supply to be tested, power supply is further achieved, operation information of different circuits on the DC/DC switching power supply is collected through the probe 32, and therefore performance parameters of the DC/DC switching power supply are measured.
Specifically, in an embodiment of the present invention, the test chassis 1 may be made of a sleeper with good insulating performance and hardness, and plays an insulating role. The drive assembly 2 may be a combination of a cylinder or motor and other connections. Under the drive of the cylinder or the motor, the connecting piece moves to drive the probe 32 to move, so that the probe is pressed with the DC/DC switching power supply.
According to the DC/DC switching power supply function test system provided by the embodiment of the invention, power is supplied by pressing the probe, and the operation information of different circuits on the DC/DC switching power supply is acquired, so that the DC/DC switching power supply is automatically tested, the test efficiency is high, and the operation is simple and convenient. Meanwhile, the DC/DC switching power supply function test system provided by the embodiment of the invention only needs to put the DC/DC switching power supply on the test case and start the switch, thereby reducing the workload of operators; the test result can be automatically analyzed and judged through the database in the power supply comprehensive test cabinet, detection personnel do not need to have more professional knowledge, manual reading errors are avoided, the influence of manual uncertain factors on power supply test is avoided, and labor cost is reduced.
As shown in fig. 1, in one embodiment of the present invention, the driving assembly 2 includes: a cylinder 21, a first connecting plate 22, a second connecting plate 23 and a guide rod 24. Specifically, the cylinder 21 is mounted on the support frame 11, and the first connection plate 22 is mounted at a lower portion of the cylinder 21 and connected to the cylinder 21. The second connecting plate 23 is disposed in parallel with the first connecting plate 22 and is disposed at a lower portion of the first connecting plate 22, wherein the first connecting plate 22 and the second connecting plate 23 are connected by a connecting member. The guide rod 24 penetrates through the second connecting plate 23, and one end of the guide rod is mounted on the test case 1, and the other end of the guide rod is mounted on the support frame 11. The first and second link plates 22 and 23 can be moved up and down along the guide rods 24 by the driving of the air cylinders 21.
The probe 32 penetrates through the first connecting plate 22 and the second connecting plate 23 and is fixed on the first connecting plate 22 and the second connecting plate 23, and the needle head of the probe 32 faces downwards and faces towards the DC/DC switching power supply to be tested. In the actual operation process, under the driving of the cylinder 21, the first connecting plate 22 and the second connecting plate 23 move downwards along the guide rod 24, and then the probe 32 is driven to move downwards, so that the probe 32 is pressed with the DC/DC switching power supply to be tested, the probe 32 abuts against each input end, each output end and each signal pin of the DC/DC switching power supply, and is connected to the power supply comprehensive test cabinet through a wire, the performance parameters of the DC/DC switching power supply to be tested are collected, and the test of various functions is realized.
Further, in an embodiment of the present invention, the number and the position of the probes 32 may be specifically set according to the opening number and the position of the model interface of the DC/DC switching power supply to be tested, and meanwhile, may be replaced or adjusted according to the test requirement.
As shown in fig. 1, in one embodiment of the present invention, the connection test assembly further includes a power connection post 31, and the power connection post 31 is mounted at a lower portion of the second connection plate 23. Further, the DC/DC switching power supply function test system further comprises a limiting plate 4, wherein the limiting plate 4 is installed on the test case 1 and used for fixing the DC/DC switching power supply to be tested. The periphery of the limiting plate 4 is provided with a plurality of connecting holes to be connected with the power connecting column 31. When the first connecting plate 22 and the second connecting plate 23 move downwards under the driving of the cylinder 21, the power connecting column 31 can be inserted into the connecting hole, so that the guiding effect is achieved, and the contact between the probe 32 and the input end, the output end and the signal pin of the DC/DC switching power supply to be tested is ensured.
In one embodiment of the invention, the DC/DC switching power supply function test system further comprises a safety light barrier 5. Two safety gratings 5 are respectively installed on two sides of the support frame 11 and located in front of the test case 1, a control board is further arranged in the test case 1, and the safety gratings 5 are electrically connected with the control board. In the test process, when hands or other parts of a human body enter a high-voltage test area, the safety grating 5 transmits sensed information to the control board, and the control board turns off a test power supply in time to avoid causing safety accidents.
As shown in fig. 1, in an embodiment of the present invention, the DC/DC switching power supply function test system further includes a protective cover 6, and the protective cover 6 is disposed outside the test chassis 1, specifically, on the top of the supporting frame 11. In an embodiment of the present invention, optionally, the protective cover 6 is made of a transparent tegument board, and during the testing process, the testing process of the DC/DC switching power supply can be observed, so as to prevent the occurrence of the sparking phenomenon caused by poor contact.
As shown in fig. 2, in an embodiment of the present invention, a grounding pillar 110 is further disposed on the testing cabinet 1, and an anti-static wrist strap is connected to the grounding pillar 110. The testing case 1 and the anti-static wrist strap are grounded together, and when the testing case is used, a tester takes the anti-static wrist strap and then takes and places the DC/DC switching power supply to be tested so as to ensure that the electrostatic protection in the testing process meets the requirement.
Furthermore, the testing machine case 1 is also provided with a code scanner, in the actual working process, after a detector takes the DC/DC switching power supply to be tested, a two-dimensional code or a bar code on the DC/DC switching power supply to be tested is aligned to the code scanner, the code scanner reads the model and the serial number information of the DC/DC switching power supply to be tested, test data can be automatically scanned and input according to the serial number, the automation of product recording is realized, and the truth and accuracy of the product recording are ensured.
Furthermore, the tester case 1 is also provided with a starting switch 12, an emergency stop switch 13, a power switch 14, a high-voltage alarm lamp 15 and an audible and visual alarm lamp 16. Specifically, the start switch 12 includes 2 switches, which are respectively disposed on two sides of the testing machine case 1 and are used to control the start and stop of the testing system. The emergency stop switch 13 is positioned beside one of the starting switches 12, and the emergency stop switch 13 can be pressed to be powered off in the test process if an emergency situation occurs, so that the occurrence of safety accidents is reduced. The power switch 14 is used to supply power to the test system. The high-voltage alarm lamp 15 is used for reminding the test process to be in a high-voltage state, and safety problems are reduced. The sound and light alarm lamp 16 is used for automatically starting sound and light alarm to prevent misjudgment if unqualified items appear in the test process.
As shown in fig. 2, in an embodiment of the present invention, a control board is further disposed in the test chassis 1, the safety grating 5, the probe 32, the start switch 12, the CH1 channel 101, the CH2 channel 102, the trigger interface 103, the back-infusion interface 104, the dc output interface 105, the dc input interface 106, the USB interface 107, the DB9 interface 108, the barcode scanner, and the acousto-optic warning lamp 16 are all electrically connected to the control board, and all wires connected to the control board are disposed in the test chassis 1. The upper surface of the test case 1 is provided with connectors corresponding to the connection test components so as to realize the electric connection between the control panel and the connection test components. The control panel can adopt the existing singlechip or MCU control unit. The air source interface 109 is connected with an external air compressor or an air passage, and the air pressure is not less than 0.4 Mpa. The power interface 111 is connected with a 220V alternating current power supply (with a leakage protection function); the DB9 interface 108 is connected to the power supply comprehensive test cabinet through a lead; the direct current input interface 106 is connected to the direct current output of the power supply comprehensive test cabinet through a lead; the dc output interface 105 is wired to the power integration test cabinet electronic load.
Further, in an embodiment of the present invention, the DC/DC switching power supply function test system further includes: and a handle 17, wherein the handle 17 is arranged outside the test case 1 to facilitate the movement of the test case 1.
According to the DC/DC switching power supply function test system provided by the embodiment of the invention, complex wiring is not needed between the DC/DC switching power supply to be tested and the test system, and the DC/DC switching power supply is only needed to be placed on the test case to start the switch, so that the workload of detection personnel is reduced. The test result is automatically analyzed and judged through a database in the power supply comprehensive test cabinet, and for unqualified items, an audible and visual alarm can be automatically performed to prevent misjudgment. Meanwhile, the automatic scanning input and test data automatic recording functions can be realized according to the serial number, and the truth and accuracy of product records are ensured. Because the test system is operated at high voltage and is isolated by adopting the safety grating, the human body part is not contacted with the test environment in the test process, and the safety and reliability of the test system are improved.
The following takes the embodiment shown in fig. 1 as an example to describe in detail the working principle of the DC/DC switching power supply function test system provided by the embodiment of the invention.
Before testing, the DC/DC switching power supply to be tested is fixed in the limiting plate 4 on the testing case 1. The power switch 14 is started, the starting switch 12 is started by two hands, the first connecting plate 22 and the second connecting plate 23 move downwards under the driving of the air cylinder 21, and then the probe 32 and the power connecting column 31 are driven to move downwards, so that the power connecting column 31 is inserted into a connecting hole in the testing case 1, the probe 32 is pressed with the input end, the output end and the signal pin of the DC/DC switching power supply for power supply, various parameters of the DC/DC switching power supply are collected, and various functional tests are realized.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A DC/DC switching power supply functional test system, comprising:
the testing machine box is provided with a supporting frame, and the DC/DC switching power supply to be tested is fixed on the testing machine box;
the driving assembly is mounted on the supporting frame;
and the connection test assembly comprises a probe, the probe is arranged on the lower part of the driving assembly, and the probe is pressed with the DC/DC switching power supply to be tested under the driving of the driving assembly to acquire the performance parameters of the DC/DC switching power supply to be tested.
2. The DC/DC switching power supply function test system of claim 1, wherein the driving assembly comprises:
the cylinder is arranged on the supporting frame;
the first connecting plate is arranged at the lower part of the cylinder and is connected with the cylinder;
the second connecting plate is arranged in parallel with the first connecting plate and is connected with the first connecting plate;
and the guide rod penetrates through the second connecting plate, one end of the guide rod is installed on the testing case, and the other end of the guide rod is installed on the supporting frame.
3. The DC/DC switching power supply function test system of claim 2, wherein the probe is penetratingly mounted on the first connection board and the second connection board.
4. The DC/DC switching power supply function test system of claim 2, wherein the connection test assembly further comprises a power connection post installed at a lower portion of the second connection board and connected with the tester case.
5. The system for testing the function of the DC/DC switching power supply according to claim 4, further comprising a limiting plate installed on the testing case to fix the DC/DC switching power supply to be tested.
6. The system for testing the function of the DC/DC switching power supply according to claim 5, wherein the testing case is further provided with a plurality of connecting holes, and the connecting holes are formed around the limiting plate and connected with the power connection column.
7. The DC/DC switching power supply function test system according to claim 1, further comprising safety light barriers installed at both sides of the support frame.
8. The system for testing the function of a DC/DC switching power supply according to claim 1, wherein a grounding column is further arranged on the testing cabinet, and an anti-static wrist strap is connected to the grounding column.
9. The system for testing the functions of the DC/DC switching power supply according to claim 1, wherein a bar code scanner is further disposed on the testing cabinet, and the bar code scanner is configured to scan a two-dimensional code or a bar code of the DC/DC switching power supply to be tested.
10. The DC/DC switching power supply function testing system of claim 1, further comprising a protective cover disposed outside the test chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011247999.1A CN112557937A (en) | 2020-11-10 | 2020-11-10 | DC/DC switching power supply function test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011247999.1A CN112557937A (en) | 2020-11-10 | 2020-11-10 | DC/DC switching power supply function test system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201828653U (en) * | 2010-09-27 | 2011-05-11 | 东莞市大忠电子有限公司 | Testing device for pneumatic type switching power supply |
| CN206848346U (en) * | 2017-04-25 | 2018-01-05 | 东莞市仪锐电子有限公司 | It is a kind of for the voltage of Switching Power Supply and/or the test device of testing current |
| CN209992617U (en) * | 2019-04-25 | 2020-01-24 | 武汉锐科光纤激光技术股份有限公司 | Circuit board combined function testing device |
| CN210090653U (en) * | 2019-05-16 | 2020-02-18 | 东莞市宏科检测技术服务有限公司 | Automatic testing device for switching power supply |
| CN211236174U (en) * | 2019-12-06 | 2020-08-11 | 厦门海兰格电气有限公司 | Testing tool for switching power supply |
-
2020
- 2020-11-10 CN CN202011247999.1A patent/CN112557937A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201828653U (en) * | 2010-09-27 | 2011-05-11 | 东莞市大忠电子有限公司 | Testing device for pneumatic type switching power supply |
| CN206848346U (en) * | 2017-04-25 | 2018-01-05 | 东莞市仪锐电子有限公司 | It is a kind of for the voltage of Switching Power Supply and/or the test device of testing current |
| CN209992617U (en) * | 2019-04-25 | 2020-01-24 | 武汉锐科光纤激光技术股份有限公司 | Circuit board combined function testing device |
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