Car shift cable: Understanding the critical components

A wiring harness is the body of a network of automotive circuits that connects and enables the electrical and electronic components of a car to function. With many circuits, the number of harness parts to choose from is large, and the matching of parts to each other is important for automotive safety. Read the article to learn more about this part.

1. Terminals

1.1 Female Terminals

Generally, male terminals are set at the equipment end, and the model is selected by the electrical performance of the equipment. The female terminal for docking with the equipment end is generally used in combination with the male terminal and does not need to be selected separately. And the selection of male and female terminals for harness docking, the first thing to know is the current value of the flow through the circuit.

Common width 0.64mm terminals allow the current value is generally less than 3A. The current value of the circuit is small, the general choice of 0.64mm terminals can be (Figure 2). The motor and other equipment operating current values are larger, and generally choose 0.64mm, 1.0mm, or more terminals. The allowable current value of the terminal is related to the number of pins, wire size, energizing time, temperature, etc., so you need to check the drawing of the terminal to choose.

4. Wires

Wire type

The wire type should consider whether it needs to be heat resistant, whether it needs special wire types such as twisted pair or shielded wire, whether it is used in curved parts, etc. After considering the above special requirements, select the appropriate material.

Wire color

Usually, the wire color is selected according to the product manual, and there are no special requirements. In terms of workability, avoid using the same wire diameter in the same plug with the color next to each other to prevent mis-insertion during operation or misidentification during maintenance.

5. Overall circuit selection principles

The above mentioned a lot of physical selection of the basic method. But in fact, the selection of the parts of the circuit is not in pieces, but the whole. In the power circuit, the presence of the fuse actually protects the whole circuit from problems, so the fuse must be the weakest in the circuit.

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