With the continuous expansion of the scope of application applications, they can be divided according to its two basic functions: signal transmission and electrical transmission of two categories. In the field of electronic applications, these two types of electrical connector is a significant feature of its terminal with a certain current, in other applications, the voltage provided by the terminal will also be as a very important consideration, although the same terminal design can be As a signal and power transmission of two functions, but in a variety of similar contact with the application point of view, many electrical transmission connector in the terminal design only the need for power transmission as the sole purpose.

Power applications:

As mentioned earlier, the electrical connector is a must-have power, usually its voltage is very low. Generally used is the following two power transmission methods:

1. Dedicated to high levels of current power contact transfer.

2. Connect with parallel multi-signal. Each of them has superior and inferior methods. There are two differences between power transmission and signal transmission.

The first, and most noticeably, is used to pass higher currents. The current of the signal transmission is usually no more than 1 amp, up to no more than a few amps, and the power transmission current can reach tens or even hundreds of amps.

The second point is due to the current caused by the Joule heat caused by the temperature rise. The Joule heat generated by the signal contact process is similar to the ambient temperature. On the contrary, the electrical connector electrical power ratio is based on the temperature rise, the temperature increases, but also produce the corresponding ratio of current. A temperature rise of 30 degrees is usually used as a standard for current ratio. Therefore, in order to meet the current rating and performance stability requirements, control Joule heat is necessary, which need to consider the design of the signal transmission at the same time also consider the transmission of electricity. Especially for resistive terminals, Joule heat is an important factor that must be minimized, and the resistance of the contact surface of the electrical connector must also be minimized to minimize the heat it generates. From the point of view of selection, of course, the choice of high conductivity or cross-sectional area of ??the larger terminals to reduce the resistance, in addition, increase the transmission voltage or increase the contact area can also reduce the contact part of the resistance.

The above is a brief introduction to the main role of the electrical connector in electrical applications. To learn more about the electrical connector, please pay attention to the kingsignal website.