Device and method for detecting short-circuit fault point of finished printed circuit board

A printed circuit board and short-circuit fault technology, which is applied in the field of short-circuit fault point detection devices for finished printed circuit boards, can solve the problems of low detection efficiency of overlay detection and influence on the accuracy of detection results, so as to avoid low detection efficiency and improve efficiency. sex, the effect of increasing accuracy

Pending Publication Date: 2022-04-26
张贵些
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a device and method for detecting short-circuit fault points of finished printed circuit boards, one of which is to have the function of rapid detection and solve the problem of low detection efficiency of coverage detection; the other purpose is to solve the problem of impurity Problems that will affect the accuracy of the test results to a certain extent, in order to achieve the effect of preprocessing the circuit board before testing

Method used

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  • Device and method for detecting short-circuit fault point of finished printed circuit board
  • Device and method for detecting short-circuit fault point of finished printed circuit board
  • Device and method for detecting short-circuit fault point of finished printed circuit board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The first aspect, such as Figure 1-10 As shown, the present invention provides a finished printed circuit board short circuit fault point detection device, comprising a detection table 1, the top of the detection table 1 is provided with a continuous rapid positioning mechanism 2, the left side of the detection table 1 is provided with a pretreatment mechanism 3, the continuous fast positioning mechanism 2 includes a raised frame 21 and a turning frame 23, the raised frame 21 is fixed and welded on the top of the detection table 1, the inside of the raised frame 21 is provided with a conveyor belt 22, the folding frame 23 is fixed on the back of the testing table 1, The top of the folding frame 23 is fixed with a thermal imager body 24, the right side of the folding frame 23 is fixed with a display 25, the top of the folding frame 23 is provided with a background temperature compensation mechanism 26, the pretreatment mechanism 3 includes a lift 31, the lift 31 is fixed on ...

Embodiment 2

[0046] as Figure 1-10 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the top of the conveyor belt 22 is fixed mounted with an embedding block 221, the top of the embedding block 221 is fixed welded with a fixed substrate 222, the top of the embedding block 221 is fixed with an elastic card member 223, the top of the elastic card piece 223 is fixed welded with a movable substrate 224, the fixed substrate 222, the adjacent side of the movable substrate 224 is provided with a buffer protection mechanism 225, Buffer protection mechanism 225 includes a sponge pad 2251, two sponge pads 2251 are fixed to the adjacent side of the fixed substrate 222 and the movable substrate 224, the adjacent side of the two sponge pads 2251 are fixed connected to the airbag pad 2252, the adjacent side of the two airbag pads 2252 are fixed to the insulating silicone pad 2253, the adjacent side of the two insulating silicone pads 2253 are fixed to the ...

Embodiment 3

[0048] as Figure 1-10As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the left side of the protective cover 33 is disassembled with a filter cartridge 37, the outlet pipe of the suction pump 34 is connected to the top of the filter cartridge 37 actively connected, the inner chamber of the filter cartridge 37 is fixed with the inner ring 371, the bottom of the inner ring 371 is disassembled with a coarse filter cotton cover 372, the bottom thread of the filter cartridge 37 is connected to the PP cotton filter cartridge 373, the top of the filter cartridge 37 is fixed with a unidirectional obstruction pipe 374, The interior of the unidirectional obstruction pipe 374 is opened with a one-way inner groove 3741, the bottom of the unidirectional inner groove 3741 is provided with elastic feet 3742, the top of the elastic foot 3742 is fixed with a rubber jacket 3744, the rubber jacket 3744 is fixed on the inner wall of the closed ball...

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Abstract

The invention discloses a finished printed circuit board short-circuit fault point detection device and method, and relates to the technical field of finished printed circuit board quality detection.The finished printed circuit board short-circuit fault point detection device comprises a detection workbench, a continuous rapid positioning mechanism is arranged at the top of the detection workbench, and a pretreatment mechanism is arranged on the left side of the detection workbench; the continuous rapid positioning mechanism comprises a protruding frame and a turning frame, and the protruding frame is fixedly welded to the top of the detection workbench. By controlling the conveying belt to work, a circuit board on the top of the conveying belt can be automatically conveyed to the position near the bottom of the thermal imager body, then the circuit board is powered on, and the thermal imager body is controlled to work when abnormal high temperature occurs at a short-circuit fault point on the circuit board in the power-on process; the display screen displays the heat radiation picture of the circuit board, if a short-circuit fault point exists on the circuit board, the color of the heat radiation picture at the position is obviously different from that at a normal position, and then the short-circuit fault point can be quickly positioned and processed.

Description

Technical field [0001] The present invention relates to the technical field of finished printed circuit board quality detection, specifically to a finished printed circuit board short circuit fault point detection device and method. Background [0002] Printed circuit board, also known as printed circuit board, is the provider of electrical connection of electronic components, its development has more than 100 years of history, its design is mainly layout design, the main advantage of the use of circuit board is to greatly reduce the error of wiring and assembly, improve the level of automation and production labor rate, according to the number of circuit board layers can be divided into single panel, double panel, four-layer board, six-layer board and other multi-layer circuit board, because the printed circuit board is not a general terminal product, so the definition of the name is slightly confused, For example: the motherboard used by personal computers, called the motherbo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/28G01R31/52G01R1/04
CPCG01R31/2812G01R31/2808G01R31/52G01R1/0425
Inventor 张贵些
Owner 张贵些
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