Application characteristics of automotive connectors

Waterproof performance: In order to ensure better driving of the car, we can divide the reliability of the connector into the closure of the connector in use and the fire resistance of the car in driving. In addition, the connector can also display shielding and temperature control during driving. Generally speaking, when discussing the sealing performance of automobile connectors, it is the sealing performance of water for automobiles. In this field, the international popular management standard is IP67, which is also the highest level in the automotive industry. Although the waterproof requirements for different parts of the car are different, many car manufacturers will choose IP67 to ensure the sealing performance of their car connectors. Power supply: It is a very important energy source in automobile driving. It is not only related to the normal operation of the engine, but also often involved in the use of power supply in the driving process. Therefore, in the automotive power supply system, there are different divisions of automotive connectors, and there are certain sealing measures that can be implemented between the common connector and the equipment, between the common connector and the cable, between the common connector and the mother connector, and between the mother connector and the cable. Seal ring: a common tool to achieve the sealing performance of automotive connectors, which can not only achieve the fixing effect between different hole positions, but also achieve the sealing effect. It can not only ensure the stable operation of automotive equipment, but also ensure the waterproof performance of automotive equipment in work. Most sealing rings are made of silicone rubber, which is made of liquid silicon and solid silicon after certain chemical changes.

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In order to prolong the service life of car connectors, car connector manufacturers will coat the surface with metal to prevent oxidation and wear, so as to prolong the service life. However, problems with the connector during the coating process can lead to color differences in later use. 1. Impurities in gold-plated raw materials will lead to the color difference of gold-plated automobile connector terminals. In the manufacture of automotive connector terminal plating solution materials, once the impurities brought by the material exceed the tolerance of the gold plating solution, the color and brightness of the gold layer will be affected. Organic impurities will make the metal layer dark and bloom; the interference of metal impurities will make the coating red or even black, and the color change in the hole is obvious. 2. Excessive gold-plated current density will also affect the color difference of automotive connector terminals. When calculating the total area of parts in the plating bath, if the value is calculated incorrectly and is greater than the actual surface area, the gold plating current will be abnormal, and the metal layer will be red with the naked eye. If the gold plating solution is used for a long time, it is easy to excessively accumulate impurities in the plating solution, resulting in the color of the gold layer. 3. The aging of the gold plating solution will also affect the gold plating effect of the automotive connector terminals. Abnormal. In addition, mutual plugging and unplugging during gold plating is also easy to cause the plating effect of automobile connector terminals, thereby affecting the service life of automobile connectors.

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