Brief description of the main wiring harness of the entire vehicle

Before placing the wiring harness to produce a wiring harness diagram beforehand, the main wiring harness diagram and circuit schematic diagram is not the same. Circuit schematic diagram is the expression of the electrical some of the connection between the drawings, it does not reflect how the electrical parts are connected to each other, not affected by the scale and shape of the electrical components and the interval between them. While the harness diagram must take into account the scale shape of the electrical components and the interval between them, but also to reflect how the electrical parts are connected to each other.
Wiring harness factory technicians based on the wiring harness diagram made of wiring harness wiring board, the workers in accordance with the rules of the wiring board to cut the line wiring. The main wiring harness of the whole car is usually divided into red engine (incineration, EFI, power generation, starting), appearance, lighting, air conditioning, auxiliary appliances and some other parts, there are main harness and branch harness. A whole car main wiring harness has a number of branch harnesses, just like tree poles and tree branches the same. The main wiring harness of the whole vehicle is usually centered on the exterior panel and extends back and forth. Because of the length of the connection or installation convenience and other reasons, some sedan wiring harness is divided into red head harness (including the appearance, engine, headlight assembly, air conditioning, battery), rear harness (tail light assembly, license plate light, luggage compartment light), roof harness (door, roof lights, audio speakers) and so on. Wiring harness on each end will be played on the symbols of numbers and letters to indicate the articulation of the wire target, the operator to see the symbols can be correctly articulated to the corresponding wire and electrical equipment, which is particularly useful in the repair or replacement of the wiring harness. Together, the color of the wire is divided into single-color wire and two-color wire, the color of the use of rules, usually the car factory self-defined specifications. China's industry norms only rule the main color, for example, the rules of single black dedicated to the hitch wire, red monochrome for the power line, can not be mixed.
In order to achieve energy savings to reduce the intention of uniform fuel consumption, car manufacturers focus on reducing the scale of the car and the use of lighter materials, the demand for low-voltage wires to reduce the scale of the car, thin-walled insulation and cross-linking to improve the insulation of the direction of the development of the function. Conductor processing equipment and technological advances, insulation, fine extrusion (precision extrusion) and the use of thermosetting polyolefin materials into the car low-voltage wire production industry urgently need to deal with the problem.
The main wiring harness with woven wire or plastic tape package, for safety, processing and repair convenience, woven wire package has been screened, is now wrapped in sticky plastic tape. Between the harness and the harness, the harness and the connection between the electrical parts, the choice of joint inserts or wire lugs. Plugs made of plastic, divided into plugs and sockets. Wiring harness and wire harness with the plug-in connection between the harness and the connection between the electrical parts with the plug-in or wire lugs.
In order to improve the quality of the conductor, foreign car low-voltage wire production industry has been widely used with a succession of tough refining equipment, multi-head drawing machine, automotive wiring harness assembly manufacturers have been used as a car low-voltage wire production company supporting the conditions of approval.

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