Customized automotive wiring harness supplier (pune maharashtra wiring, engine wiring kit)
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Basic introduction to automotive wiring harness
The wires of automobile wiring harnesses are also called low-voltage wires, which are different from ordinary household wires. Ordinary household wires are copper single-core wires with certain hardness. Automotive wires are copper multi-core cords, some cords are as thin as hair, and several or even dozens of flexible copper wires are wrapped in a plastic insulating tube (polyvinyl chloride), which is soft and not easy to break.
Due to the particularity of the automotive industry, the manufacturing process of automotive wiring harnesses is also more special than other ordinary wiring harnesses.
The systems for manufacturing automotive wiring harnesses are roughly divided into two categories:
1. Divided by European and American countries, including China:
Use TS16949 system to control the quality of the manufacturing process.
For example, Toyota and Honda have their own systems to control the manufacturing process.
With the increase of automobile functions and the widespread application of electronic control technology, there are more and more electrical parts and more and more wires, and the wire harness becomes thicker and heavier. Therefore, advanced cars have introduced CAN bus configuration and adopted multiple transmission systems. Compared with the traditional wiring harness, the multiple transmission device greatly reduces the number of wires and connectors, making wiring easier.
Take the wiring harness of the whole vehicle as an example, the 0.5 specification wire is suitable for instrument lights, indicator lights, door lights, ceiling lights, etc.;
The 0.75 specification line is suitable for license plate lights, front and rear small lights, brake lights, etc.;
1.0 specification line is suitable for turn signal, fog lamp, etc.;
1.5 specification line is suitable for headlights, speakers, etc.;
Main power lines such as generator armature lines, grounding lines, etc. require 2.5 to 4 square millimeter wires. This only refers to the general car. The key is to look at the maximum current value of the load. For example, the ground wire of the battery and the positive power wire are dedicated car wires for separate use. Their wire diameter is relatively large, at least more than ten square millimeters, these "big and thick" wires will not be woven into the main wiring harness.
Arrangement of automobile wiring harness
Before arranging the wiring harness, draw the wiring harness diagram in advance. The wiring harness diagram is different from the circuit schematic diagram.
A schematic circuit diagram is an image that expresses the relationship between various electrical parts. It does not reflect how the electrical components are connected to each other, and is not affected by the size and shape of each electrical component and the distance between them. The wiring harness diagram must take into account the size and shape of each electrical component and the distance between them, and also reflect how the electrical components are connected to each other.