Method for judging the plug state between printed circuit board and flexible circuit board

Abstract

The invention discloses a printed circuit board and a method for judging the plugging state between the printed circuit board and the flexible circuit board. Adding an auxiliary gold finger on the substrate, and cooperating with the determination element connected to the auxiliary gold finger added on the substrate, can realize the judgment of the insertion state between the first gold finger of the connector and the second gold finger of the flexible circuit board , so that in the actual application process, it is possible to power on the device after it is determined that the plugging state is normal, thereby effectively avoiding risks such as high current caused by abnormal plugging, reducing scrap losses, and improving equipment quality. Rate.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a printed circuit board and a method for judging the insertion state between the printed circuit board and the flexible circuit board. Background technique [0002] With the rapid development of telecommunication technology, various electronic devices have gradually permeated people's lives. Printed circuit boards (Printed Circuit Board, PCB) and flexible circuit boards (Flexible Printed Circuit, FPC) are used as supports for electronic equipment to realize electrical connection of various components in the electronic equipment. With the development trend of diversification and complexity of electronic equipment structures and types in the market, printed circuit boards and flexible circuit boards are becoming more and more important. [0003] In the prior art, the flexible circuit board is mainly connected to the printed circuit board through the following methods: buckl...

AI Technical Summary

Problems solved by technology

However, the inventors found that in the process of inserting the flexible circuit board and the printed circuit board using the connector, it is inevitable that some insertion deviation or inclination will occur, such as figure 2 In this case, there may be abnormal conditions such as short circuit on the gold finger on the flexible circuit board. At this time, when the device is powered on, a large current may be generated, which may cause abnormalities such as circuit burnout, which will lead to product scrapping.

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