Mobile phone connector development history

　　The development and changes of mobile phone connector products, an in-depth analysis of the technological progress of mobile phone connectors in terms of miniaturization, thinning and high performance, and the market changes of mobile phone connectors, and finally around how to integrate this change into actual applications, give An example of a mobile phone connector adapted to market demand is presented.

　　Start with the five main product types of mobile phone connectors (FPC connectors, board-to-board connectors, I/O connectors, card connectors, and battery connectors).

　　Mobile phone connectors are important electronic components in mobile phones. Their quality is directly related to the quality of the mobile phone and the reliability of its use. The main components of the connector in the mobile phone include: membrane buttons, ultra-small button switches, slide switches, mobile phone built-in antennas, PDA smart phone lines, I/O system connectors, data and sound I/O system connectors, SIM card cards Holders, mobile phone battery connectors, RF connectors, spring-loaded connectors, plugs with earphones, charging jacks, rectangular connectors, cables and plug jacks for mobile phone accessories, interfaces, etc.

　　The wrong selection and use of connectors can cause the system to fail to work normally, and trigger a series of chain reactions such as product recalls, circuit board damage, rework and maintenance. At present, most of the after-sales quality problems of mobile phones are mostly related to connectors.

　　The types of connectors used in mobile phones vary slightly according to their products. The average number used is about 6-9. The product types are mainly divided into five types: FPC connectors, board-to-board connectors, and I/O Connectors, card connectors and battery connectors.

　　For FPC connectors, FPC connectors are used to connect the LCD display to the drive circuit (PCB). At present, 0.4mmpitch products are the main products, and 0.3mmpitch products have also been widely used. With the trend of LCD drivers being integrated into LCD devices, the number of pins of the FPC is correspondingly reduced. In the future, the FPC connector is expected to be integrated with other mobile phone components on the frame of the mobile phone or its LCD module.

　　The development trend of board-to-board connectors in mobile phones is that the pin spacing and height are getting smaller and smaller. At present, 0.4mm pitch is the mainstay, and it will gradually develop to 0.35mm or even smaller. The subsequent requirements are lower in height and have a shielding effect. At the same time, the height of the BTB (board-to-board connector) is gradually reduced to 0.9mm.

　　The card connector is mainly based on the 6pin SIM card connector and the T-flash connector. The future development direction is mainly to improve the shielding function and thickness of the SIM card connector to achieve a minimum thickness of 0.50mm. At the same time, the card connector The product is geared towards multi-functional development, and the two-in-one product of SIM card connector + T-flash connector has appeared on the market.

　　The battery connector can be divided into pogo pin type (pogo pin), shrapnel type and guillotine type. The technical trends of battery connectors are mainly miniaturization, new battery interface, low contact impedance and high connection reliability.

　　The above-mentioned various mobile phone connectors are constantly producing new developments and changes under the promotion of the development of mobile phones. Next time, I will introduce the current development status of mobile phone connectors.

　　Development and changes, the following is a summary of the development status of mobile phone connectors.

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