Reliable, Economical and Miniaturized Car Line to Line Connection Scheme

The wiring harness is like the blood vessels of a car, connecting all corners of the car. Like blood vessels, although the wire harness covers the whole vehicle, it is almost completely invisible in appearance. Many people may not know that the wiring loom on the car will be as long as thousands of meters if it is fully deployed; In order to facilitate the deployment of such a long harness, some interruptions are needed in the middle, and the connector used to connect these interrupted parts is what we call a line-to-line connector. When a car runs for thousands of miles, the blood vessels should be unobstructed, so it is very important to choose a reliable line-to-line connector for the connection of the whole car.

What kinds of line-to-line connectors are there? From the application point of view, it can be divided into non-waterproof line-to-line connectors, waterproof line-to-line connectors, and body-to-door line-to-line connectors.

Non-waterproof series is mainly installed under the frame or in the cockpit. Because the exterior of these positions is tightly wrapped by the frame or shell, and will not be exposed to the external environment during daily driving, it is unnecessary to adopt waterproof structure due to space, weight and cost considerations. Common non-waterproof applications include the connection from automobile instrument to engine compartment, car body and ceiling, and the connection from car body to engine compartment and trunk.

Non-waterproof line-to-line connector is one of the most commonly used line-to-line connectors in automobiles, which is widely used in various parts of automobiles because of its compact size, economical cost and abundant PIN positions.

As the name implies, the body-to-door series is used for wiring harness connection between the body and the front/rear doors. Nowadays, there are more and more buttons on the doors, and their corresponding applications are also increasing. Not only do they correspond to door locking, window lifting and rearview mirror adjustment, but some models also integrate buttons with more functions such as seat adjustment, rearview mirror defogging, volume adjustment, central control panel control and so on. This requires the wiring harness connection on the door to be more compact, and the connector between the car body and the door should not only be smaller, but also meet more requirements besides the traditional functions, such as data transmission, especially the transmission of screen analog signals.

Series of waterproof line-to-line connectors are mainly used for the working condition that the connecting parts may be exposed to the outside or may be flooded, especially for the wiring harness connection between one end of the front bumper and the rear bumper to the engine compartment and the car body. The waterproof connector is equipped with a tight protective plastic shell and sealing ring, and adopts a special waterproof terminal, which has multiple protections and worries.