Connectors can be seen everywhere in life, and we are no strangers to connectors. I have done a lot of explanations on the connector in the previous article. In this article, the patch connector in the wire-to-board connector will be explained, and the advantages of using 3d printing technology to manufacture the connector will be introduced. If you are interested in the content that will be covered in this article, you may wish to continue reading.
1.Introduction of SMT connectors in wire-to-board connectors
There are many types of connectors, which can be divided into circular connectors, rectangular connectors, square connectors, customized connectors, etc. according to their appearance. According to the contact body termination form: crimping, welding, winding; screw (cap) fixing; according to the connection method can be divided into: board-to-board connector (B to B), wire-to-board connector (W to B), Wire to wire connector (W to W).
Surface mount technology has been used by some manufacturers since the 1950s. However, the use of patch connectors (SMT connectors) has only recently begun, and is gradually being valued by manufacturers. This situation arises from the technical difficulties faced by SMT connectors and the failure to perceive that SMT connectors can effectively save board circuit area. As people find that the patch process can improve production efficiency and reduce costs for manufacturers, it can also reduce the area of the board and improve the design flexibility, so that patch connectors are widely used.
Patch connectors are divided into: horizontal patch connectors (SMT) and vertical patch connectors (DIP). SMT generally mounts no-lead or short-lead surface assembly components, which requires printing solder paste on the circuit board, then mounting by a placement machine, and then fixing the device by reflow soldering. The DIP welding is a direct plug-in packaged device, which is fixed by wave soldering or manual soldering.
The overheating temperature of the patch connector is 3-5s above 260°. The composition of the patch connector: plastic parts and pin pins. The materials of the plastic parts are generally PA6T and PA9T, which are all high temperature resistant materials. Patch connectors are generally used in highway cameras, three-dimensional DC fans, smart electronics, air conditioners, high-definition LCD TVs, notebook computers and other fields. Among them, the material of Pin is generally brass, bronze, phosphor bronze, etc. The plating layer is generally gold-plated (semi-gold) or tin-plated. The coating function of the pin needle is to resist oxidation, improve the conductivity, and increase the signal transmission speed.
2. The advantages of using 3d printing technology to manufacture connectors
Nanofabrica's additive manufacturing (3D printer technology) platform may be the first cost-effective and repeatable micron-resolution AM technology, which can achieve micron resolution on centimeter-sized parts and can be in a single configuration Manufacture thousands of parts and components. One area where this technology can fit perfectly is the manufacture of various miniature optical parts and components.
This ability to produce complex, extremely flat, extremely small and extremely light optical components opens up potential for product innovation in many industrial fields. In addition, due to various reasons, including green manufacturing considerations and design freedom to work in plastics, as plastics have become an increasingly popular material for micro-optical applications.
Cylindrical microlens, 20 microns high and 100 microns wide. The surface roughness is about 1 micron, and the material has 80% transparency to visible light.
In fact, micro-injection molding has long become a popular technology for micro-optics manufacturing, but it was not until the launch of Nanofabrica's AM technology that it truly became the only viable technology for low-cost, mass production.
The use of injection molding for micro-optics manufacturing requires optimized design, tooling and production steps, which means that close interaction between suppliers and product developers is essential. Nanofabrica's technology overcomes the complexity problem. The key is to eliminate the need for tools. Therefore, the technology can be used in a range of applications, such as the manufacture of fixtures and fixtures for optical alignment, optical connectors for optical fibers, and optical fibers. Ferrules and other small related components, as well as optical components such as lenses and prisms.