How to check cell phone board-to-board connectors?

The application of board-to-board connectors in mobile phones basically focuses on the battery, screen, camera, fingerprint module, earphone, button and pressure button of mobile phones. Linear motor and so on. Board-to-board connectors are indispensable electronic components for mobile phones because of their stable electrical transmission and connection. With the development of 5G technology, the hardware of mobile phone motherboard is constantly upgraded, including the development of three cameras and four cameras of mobile phones. The use of board-to-board connectors in mobile phones is also increasing. The number of board-to-board connectors in mobile phones can be increased by about 1 to 3 pairs, and the number of board-to-board connectors in 5G antennas needs to be increased by 1 to 2 pairs. Android phones use about 17.8 pairs of board-to-board connectors, while Apple phones use 22 pairs, accounting for half of the internal connector usage! It can be seen that the application of 5G network + mobile phone multi-camera and the new switching trend directly drive the market demand for board connectors. In the field of mobile phones, the market situation of board-to-board connectors in 2022 is very good.

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Because board-to-board connectors are used so much on mobile phones, their performance requirements are of course very strict. The board-to-board connectors used in mobile phones not only have strict technical requirements in production, but also require high precision of all raw materials. Testing is the best way to check the quality and performance of the connector. The multi-board connector in the mobile phone board mainly has small spacing and large current, so it is necessary to adapt to the small spacing and transmit large current, and test the module of the multi-board connector. In the seat test of the board-to-board connector, the serrated spring plate can be used for connection. In seat tests where a stable connection is provided, a sharp shrapnel may be used to maintain long-term stable contact. The good rate of seat test is 99.8%, and the performance is excellent. The high-current shrapnel microneedle module can simultaneously test 4-8 pairs of board-to-board connectors, the shrapnel heads can be fully contacted with the male and female seats of the board-to-board connectors, and different head types can be applied according to the characteristics of the male and female seats to realize correct connection and positioning. In the small spacing, the micro-needle module with large current shrapnel can handle the minimum spacing value of 0. 15 mm, with good stability, no pin card, continuous pin current transmission, and can carry the maximum current of 50 A. The current circulates in the same material, the voltage is constant, there is basically no current attenuation, and the connection performance is stable. The floating plate of the high-current shrapnel microneedle module is designed with a special limit frame, and the multi-board-to-board connector of the mobile phone is tested at the same time to ensure horizontal movement, automatically correct the deviation, and ensure the stable connection between the shrapnel and the connector. In addition to the above advantages, the average service life of the high-current shrapnel microneedle module is 20 W without continuous use and replacement, which avoids material waste, greatly improves the simultaneous test efficiency of the mobile phone multi-board-to-board connector, reduces the test cost, solves the test problem, and realizes the optimization of the test scheme.

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