Function, Composition and Role of Automobile Wiring Harness

The car wiring harness runs through the entire car. It connects the various electrical equipment on the car to act as a medium for equipment power supply and signal transmission. Single Wire Seal Manufacturer introduces the components and functions of automotive wiring harnesses.

1 What is a wire harness

The automotive wiring harness is often compared to the neural network system of the automobile. The automotive wiring harness is the main body of the automobile circuit. Without the wiring harness, there is no automobile circuit. The wire harness literally means the wire wrapped into a bundle. The automobile wire harness defines the use environment of the wire harness, that is, it is assembled on the car. The car wire harness runs through the entire car. It connects the various electrical equipment on the car to act as a device power supply and The medium of signal transmission. The automotive wiring harness is often compared to the neural network system of the automobile. The automotive wiring harness is the main body of the automobile circuit. Without the wiring harness, there is no automobile circuit.

2 Function and role of the wiring harness

Automotive wire harness seals are indispensable system-level components in the entire vehicle. Their role is to provide and distribute power for various systems of the entire vehicle and at the same time act as a signal transmission medium between various components.

To put it bluntly, car electrical components, such as headlights, need to be connected to a battery or generator through a wiring harness to form a power circuit. For the headlights to be lit, the body controller (BCM) needs to recognize the driver's intention-turn on the light combination switch, and the signal interaction between the combination switch and the BCM also needs to pass through the wiring harness.

Automotive Wire Harness Seals

3 Components of the automotive wiring harness

There is a wide range of low-voltage wiring harness components, including cables, connectors, terminals, fuse boxes, relays, fuses, plastic brackets, metal brackets, PVC insulating tubes, corrugated tubes, heat shrinkable tubes, sealing rings, rubber sleeves, tapes, Ties, protective covers, bolts, etc.

Automobile wiring harness consists of wires, connectors, wiring harness wrappers, wiring harness fixtures (buckles, rubber parts, wiring harness brackets, etc.) and wiring harness accessories.

Harness fixture

Different from other parts in other cars, the wire harness is a flexible part, and the wire harness cannot be sampled according to the established shape. Therefore, in order to constrain the arrangement path of the wire harness on the entire vehicle, additional parts need to be added to fix the wire harness. The part is the wire harness fixture, which plays the role of fixing the wire harness and constraining the wiring harness arrangement path.

The wiring harness fixtures include cable ties, buckles, rubber sheaths, wiring harness brackets, etc., depending on the wiring harness installation environment, such as wiring harness installation space, temperature requirements, and waterproof requirements, and the shape and shape of each wiring harness fixture The materials are not inconsistent. Even so, the wire harness fixture also shows a standardization trend, and it is also one of the components that are easier to achieve in the wire harness platform selection.

Harness accessories

Harness accessories refer to other smaller products on the wiring harness assembly, such as product labels and fuse clips on the wiring harness assembly.