What are the keys to power connector design?

The key to power connector design lies in the design of the contact point formed by the female terminals and male pins. If the design, process and selection of materials, plating layer, can lead to contact point is not ideal or can not form contacts. On the contrary, too much positive clamping force will lead to excessive wear of the plating surface of the connector and shorten its mechanical life, that is, the number of times the connector is inserted and removed. Contacts are designed with lathe circular pins and terminals, stamped terminals, etc. The materials of the plating layer are gold, palladium, nickel, silver, tin, etc. Silver has high electrical conductivity, but it is easy to be used. Silver has high electrical conductivity, but is easily discolored, especially in sulfur-containing environments. Slightly affects the appearance only, but seriously reduces the conductivity. Palladium nickel's high hardness and low void ratio, so its corrosion resistance is good. Gold has high chemical stability, low hardness and high cost. In contrast, each has its own advantages and disadvantages.

1. Factors of using power connector contact materials Power connectors will develop different contact resistance assessment index program, so the technical conditions of the power connector will also be based on different materials to develop different specifications of plugs and contacts. 2. Current size of the power connector and the use of the factors If the current of the power connector is more than a certain value, the Joule heat generated by the energization of the contact surface of the tiny points will soften or melt the metal, which will also affect the centralized resistance, thus making the contact resistance smaller. It also affects the concentration resistance, which makes the contact resistance smaller. This is a very common problem. 3. power connector voltage coefficient of use power connector in use, the thermal effect accelerates the chemical reaction in the film area, the film has a certain role in repair. So the voltage used in the application of power connectors has a great impact, because when the voltage reaches a certain threshold, the contact film will be broken, and the contact resistance will drop rapidly. This is a problem that requires attention.4. Positive pressure of the power connector and its use factors Positive pressure of the power connector refers to the force generated by the contact surface of the contacts perpendicular to the contact surface. With the increase of positive pressure, the area and number of contact micropoints will slowly increase, while the contact micropoints will change from elastic deformation to plastic deformation, which is an important factor.5. Surface Quality Factors of Power Connectors If there are deposits such as oil stains, dust and other deposits on the contact surfaces of the power connectors, they tend to form some loose surface films, which cause the particles to be easily embedded in the concave and convex portions of the contact surfaces, increasing the resistance of the contacts and reducing the contact area of the contacts, thus affecting the normal use of power connectors. This is a matter of concern.-6, on the BBC Electronic Products Network platform related to the introduction and sales of products brief: BBC Electronic Products Network - a professional agent / production / sales of a variety of {connectors | wiring harness | wire and cable products }; if you have a related [connectors | wiring harness | wire and cable products] purchasing / sourcing needs or would like to buy / to understand which connectors | wiring harness | wire and cable products we can provide solutions, please contact the following Division Division I business personnel! If you have related [connector | wire harness | wire and cable production] sales / resources and promotion needs, please click on the "¡¡ Business Cooperation ←" with the person to discuss!