With the rapid development of modern society and the continuous progress of science and technology, people are paying more and more attention to the safety issues of various electronic products, and the quality and functional requirements of electronic products are also getting higher and higher. The importance of the carrier that carries data and power exchange between machines and machines is self-evident. The waterproof requirement of electronic products has become one of the basic elements of the quality of more and more electronic products, especially the connecting devices that carry wired data transmission and power supply. The waterproof quality it has directly affects the function and life of the product.