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industrywaterproof plugIt is a device used to connect printed circuit boards (PCBs) and flexible printed circuit boards (FPCs). Its characteristic is that one end is connected to PCB welding (mostly using SMT welding), and the other end is connected to FPC. The waterproof plug is designed with a locking device to lock the FPC tightly with the waterproof plug to maintain a certain degree of contact reliability.

The terminal is the contact part of the waterproof plug. In order to realize the high-density layout and more stable touch function of the connector, the F waterproof plug terminal is made of narrow slice touch method and Phosphor bronze, with good conductive function and mechanical strength. Generally speaking, there are two methods for designing terminal structures: one is to punch flat blanking terminals, and the other is to bend and form terminals after stamping. Due to the elasticity and relatively complex shape that narrow strip terminals need to meet, choosing a stamping forming method will bring difficulties to stamping forming, and the forming scale and accuracy are also difficult to control. Therefore, selecting a universal terminal forms this method. Due to the use of F waterproof plugs with straight FFC/FFC (flexible printed circuit board/flat cable), their terminal categories are all female terminals. Therefore, the general choice is to use hidden methods. The locking part is matched with the plastic body. When the FPC/FFC penetrates, the locking part is used to lock the FPC/FFC to maintain a certain Contact force.

Waterproof plugs are generally produced using PPS materials. The multi-layer thin-walled structure waterproof plug plastic welding piece is used to strengthen the fastness of the connection between the waterproof plug and PCB, and prevent the welding of terminals and PCB from being damaged due to excessive force on the terminals. After installation, the welding rod should have the same coplanarity as each terminal. In waterproof plugs with fewer pins, welding is not a necessary part. In the industry, this waterproof plug has undergone continuous upgrades. As mentioned earlier, its durability has been improved, the cable connection size has been further improved, and the appearance of the waterproof plug has also been beautified. The advantage of waterproof plugs is that after a long upgrade process, they can gradually reduce the service life and operating costs of cable components.