CN219574305U - Test system and test fixture of circuit board - Google Patents
Test system and test fixture of circuit board Download PDFInfo
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- CN219574305U CN219574305U CN202320500372.5U CN202320500372U CN219574305U CN 219574305 U CN219574305 U CN 219574305U CN 202320500372 U CN202320500372 U CN 202320500372U CN 219574305 U CN219574305 U CN 219574305U
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- 238000012360 testing method Methods 0.000 title claims abstract description 40
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 claims abstract description 63
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 238000005259 measurement Methods 0.000 claims abstract description 13
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 238000005476 soldering Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model belongs to the technical field of electronic circuits, and relates to a testing system and a testing jig of a circuit board, wherein the testing system comprises: the power supply module, short circuit detection module, PCBA board, load module and parameter measurement module await measuring, power module's first end with short circuit detection module's input is connected, short circuit detection module's output with the first input of PCBA board awaits measuring is connected, the first output of PCBA board awaits measuring with connect load module's input, load module's output is connected the second input of PCBA board await measuring, the second output of PCBA board awaits measuring is connected power module's second end, parameter measurement module is used for measuring load module's parameter, short circuit detection module includes: the first switch, the second switch and the short-circuit indicating element. The PCBA board testing machine has the advantage that the situation that the frying machine is scrapped during testing can be avoided.
Description
Technical Field
The utility model belongs to the technical field of electronic circuits, and relates to a testing system and a testing jig of a circuit board.
Background
At present, the high-power lighting equipment is widely applied to our daily life, and the high-power lighting equipment mainly enables an LED lamp connected with a circuit board to work through a high-voltage driving circuit board when in work. However, the factory can have the phenomenon of even tin short circuit in the production of high-voltage driven PCBA board semi-manufactured goods in-process, namely in the factory production process, the phenomenon of even tin short circuit can exist in the past wave soldering and reflow soldering PCBA board, and this kind of even tin short circuit phenomenon if the production postweld personnel in time find the processing, even the high-voltage driven PCBA board of tin short circuit will flow into PCBA board semi-manufactured goods test link, when the PCBA board of test personnel direct test even tin short circuit, can make even the PCBA board frying machine of tin short circuit, PCBA board frying machine can burn out a lot of circuits usually, even lead to PCBA board circuit to blow and scrap.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a testing system and a testing jig for a circuit board, which can prevent a frying machine from being scrapped during testing of a PCBA board.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a system for testing a circuit board, comprising: the power supply module, short circuit detection module, PCBA board, load module and parameter measurement module await measuring, power module's first end with short circuit detection module's input is connected, short circuit detection module's output with the first input of PCBA board awaits measuring is connected, the first output of PCBA board awaits measuring with connect load module's input, load module's output is connected the second input of PCBA board await measuring, the second output of PCBA board awaits measuring is connected power module's second end, parameter measurement module is used for measuring load module's parameter, short circuit detection module includes: the power supply device comprises a first switch, a second switch and a short-circuit indicating element, wherein the first end of the first switch is connected with the first end of the power supply module, the second end of the first switch is connected with the first input end of the PCBA board to be tested, the first end of the second switch is connected between the first end of the power supply module and the first end of the first switch, the second end of the second switch is connected with the first end of the short-circuit indicating element, and the second end of the short-circuit indicating element is connected between the second end of the second switch and the first input end of the PCBA board to be tested.
Further, the parameter measurement module includes: the first end of the ammeter is connected to the first output end of the PCBA board to be tested, the second end of the ammeter is connected to the input end of the load module, the first end of the voltmeter is connected between the first output end of the PCBA board to be tested and the first end of the ammeter, and the second end of the voltmeter is connected between the input end of the load module and the second input end of the PCBA board to be tested.
Further, the short circuit indicating element is at least one of an indicator light, a vibration motor or a buzzer.
The utility model also provides a test fixture, which comprises: the main body is provided with the test system of the circuit board
The utility model has the beneficial effects that:
the short circuit detection module comprises: the first switch, the second switch and the short-circuit indicating element enable the test system to detect the circuit board, so that when the circuit board is detected, whether the circuit board is short-circuited in the soldering tin process or not can be detected through controlling the second switch, when the circuit board is not short-circuited, the circuit board can be detected through operating the first switch, the situation that the circuit board is scrapped due to the short-circuit frying machine in the test process can be avoided, and the safety of the circuit board in the detection process can be improved.
Drawings
Fig. 1 is a schematic diagram of a circuit board testing system according to the present utility model.
Description of the embodiments
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, a system for testing a circuit board includes: the power supply module, short circuit detection module, PCBA board, load module and parameter measurement module await measuring, power module's first end with short circuit detection module's input is connected, short circuit detection module's output with the first input of PCBA board awaits measuring is connected, the first output of PCBA board awaits measuring with connect load module's input, load module's output is connected the second input of PCBA board await measuring, the second output of PCBA board awaits measuring is connected power module's second end, parameter measurement module is used for measuring load module's parameter, short circuit detection module includes: the power supply device comprises a first switch S1, a second switch S2 and a short circuit indicating element LE1, wherein the first end of the first switch S1 is connected with the first end of the power supply module, the second end of the first switch S1 is connected with the first input end of the PCBA board to be tested, the first end of the second switch S2 is connected between the first end of the power supply module and the first end of the first switch S1, the second end of the second switch S2 is connected with the first end of the short circuit indicating element LE1, and the second end of the short circuit indicating element LE1 is connected between the second end of the second switch S2 and the first input end of the PCBA board to be tested. In this embodiment, the power module is a mains supply, and the load module is an LED lamp.
The short circuit detection module comprises: the first switch S1, the second switch S2 and the short circuit indicating element LE1 enable the test system to detect the circuit board, so that when the circuit board is detected, whether the circuit board is short-circuited in the soldering tin process or not can be detected by controlling the second switch S2, when the circuit board is not short-circuited, the circuit board can be detected by operating the first switch S1, on one hand, the circuit board can be prevented from being scrapped due to the fact that the short circuit is generated during testing, and on the other hand, the safety of the circuit board during detection can be improved.
In one embodiment, the parameter measurement module includes: the first end of the ammeter A1 is connected to the first output end of the PCBA board to be tested, the second end of the ammeter A1 is connected to the input end of the load module, the first end of the ammeter U1 is connected between the first output end of the PCBA board to be tested and the first end of the ammeter A1, and the second end of the ammeter U1 is connected between the input end of the load module and the second input end of the PCBA board to be tested.
In one embodiment, the short circuit indicating element LE1 is at least one of an indicator light, a vibration motor or a buzzer. Through setting up short circuit indicating element LE1 for whether the user can audio-visually judge the first input of PCBA board that awaits measuring and second output communicate. In this embodiment, the short circuit indicator LE1 is an indicator light, and in other embodiments, the short circuit indicator LE1 may be a motor, a buzzer, or a combination of an indicator light, a vibration motor, and a buzzer.
The utility model also provides a test fixture, which comprises: a main body, the main body is provided with the testing system of the circuit board, and the testing system comprises: comprising the following steps: the power supply module, short circuit detection module, PCBA board, load module and parameter measurement module await measuring, power module's first end with short circuit detection module's input is connected, short circuit detection module's output with the first input of PCBA board awaits measuring is connected, the first output of PCBA board awaits measuring with connect load module's input, load module's output is connected the second input of PCBA board await measuring, the second output of PCBA board awaits measuring is connected power module's second end, parameter measurement module is used for measuring load module's parameter, short circuit detection module includes: the power supply device comprises a first switch S1, a second switch S2 and a short circuit indicating element LE1, wherein the first end of the first switch S1 is connected with the first end of the power supply module, the second end of the first switch S1 is connected with the first input end of the PCBA board to be tested, the first end of the second switch S2 is connected between the first end of the power supply module and the first end of the first switch S1, the second end of the second switch S2 is connected with the first end of the short circuit indicating element LE1, and the second end of the short circuit indicating element LE1 is connected between the second end of the second switch S2 and the first input end of the PCBA board to be tested.
Through setting up test system for test system is when examining the circuit board, makes when detecting the circuit board, can detect the circuit board through control second switch S2 at first whether short circuit at the in-process of soldering tin, and when the circuit board did not short circuit, then just can realize the detection to the circuit board through operating first switch S1, can avoid the circuit board to take place to blow out because of the short circuit when the test on the one hand, on the other hand can promote the security of circuit board when detecting.
Working principle: the method comprises the steps that a to-be-tested PCBA board after tin connection short circuit is placed into a testing jig, a second switch S2 is firstly pulled to be in a conducting and opening state, a first switch S1 is turned off, mains supply passes through an AC-L end of the testing jig, namely the second switch S2 is a short circuit indicating element, then the first input end of a pin 8 of the PCBA board is connected to an internal circuit of the PCBA board, if the internal of the PCBA board is connected with tin short circuit, current flows from a pin 8 of the first input end of the PCBA board to a pin 7 of the second output end of the PCBA board and returns to the AC-N end of the testing jig, so that a current loop is formed, at the moment, the short circuit indicating element generates state change, the short circuit indicating element is used as a display lamp, namely, as long as the inside of the PCBA board has a short circuit phenomenon, the display lamp has large current to pass through, the internal circuit of the PCBA board is lightened, the PCBA board has no short circuit phenomenon, the display lamp does not have the large current to pass, the display lamp does not light, when the PCBA board has no short circuit, the short circuit phenomenon occurs, the first switch S1 is turned off, the second switch S2 is turned on, and the electric parameter test is carried out.
The above-described embodiments are only one of the preferred embodiments of the present utility model, and the ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model.
Claims (4)
1. A system for testing a circuit board, comprising: the power supply module, short circuit detection module, PCBA board, load module and parameter measurement module await measuring, power module's first end with short circuit detection module's input is connected, short circuit detection module's output with the first input of PCBA board awaits measuring is connected, the first output of PCBA board awaits measuring with connect load module's input, load module's output is connected the second input of PCBA board await measuring, the second output of PCBA board awaits measuring is connected power module's second end, parameter measurement module is used for measuring load module's parameter, short circuit detection module includes: the power supply device comprises a first switch, a second switch and a short-circuit indicating element, wherein the first end of the first switch is connected with the first end of the power supply module, the second end of the first switch is connected with the first input end of the PCBA board to be tested, the first end of the second switch is connected between the first end of the power supply module and the first end of the first switch, the second end of the second switch is connected with the first end of the short-circuit indicating element, and the second end of the short-circuit indicating element is connected between the second end of the second switch and the first input end of the PCBA board to be tested.
2. The system for testing a circuit board according to claim 1, wherein the parameter measurement module comprises: the first end of the ammeter is connected to the first output end of the PCBA board to be tested, the second end of the ammeter is connected to the input end of the load module, the first end of the voltmeter is connected between the first output end of the PCBA board to be tested and the first end of the ammeter, and the second end of the voltmeter is connected between the input end of the load module and the second input end of the PCBA board to be tested.
3. The system of claim 1, wherein the short circuit indicator is at least one of an indicator light, a vibration motor, or a buzzer.
4. A test fixture, its characterized in that includes: a body having thereon a test system for a circuit board according to any one of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320500372.5U CN219574305U (en) | 2023-03-15 | 2023-03-15 | Test system and test fixture of circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320500372.5U CN219574305U (en) | 2023-03-15 | 2023-03-15 | Test system and test fixture of circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219574305U true CN219574305U (en) | 2023-08-22 |
Family
ID=87656530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320500372.5U Active CN219574305U (en) | 2023-03-15 | 2023-03-15 | Test system and test fixture of circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219574305U (en) |
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2023
- 2023-03-15 CN CN202320500372.5U patent/CN219574305U/en active Active
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Address after: Building 2, Cuiheng International Science and Technology Innovation Center, No. 21 Beichen Road, Cuiheng New District, Zhongshan City, Guangdong Province, 528400, 604 Patentee after: Aolei Technology Group Co.,Ltd. Country or region after: China Address before: Room 527, Unit 1, Building 2, Qian'an Garden, No. 18 Cuicheng Road, Cuiheng New District, Nanlang Street, Zhongshan City, Guangdong Province, 528400 Patentee before: Zhongshan Aolei Technology Co.,Ltd. Country or region before: China Address after: Room 527, Unit 1, Building 2, Qian'an Garden, No. 18 Cuicheng Road, Cuiheng New District, Nanlang Street, Zhongshan City, Guangdong Province, 528400 Patentee after: Zhongshan Aolei Technology Co.,Ltd. Country or region after: China Address before: 518000 A2 fifth floor, Fuhai information port, Qiaotou community, Fuhai street, Shenzhen, Guangdong, Baoan District Patentee before: Shenzhen Olight E-Commerce Technology Co.,Ltd. Country or region before: China |
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