What are the functional components and functions of car connecting cables? Let’s take a look at them below.

The automobile connecting cable is an indispensable system-level component of the entire vehicle. It distributes power to various systems of the entire vehicle and can also be used as a medium for transmitting signal data between components. In short, in order to get a power source to light up, the car's electrical appliances (such as headlights) need to be connected to the battery or generator via the car's connecting cable to form a system power control circuit. In order for the headlights to light up, the body controller (BCM) must recognize the driver's intention and turn on the light combination switch. The signal interaction between the combination switch and the BCM also needs to pass through the wiring harness.

What are the components of a car connecting cable? Let’s take a look at it together.

The range of low-voltage wiring harness components is very wide, including cables, connectors, terminals, fuse boxes, relays, fuses, plastic brackets, metal brackets, PVC insulating tubes, corrugated tubes, heat shrinkable tubes, fillers, rubber sleeves, and automotive wiring harnesses. , wire harness packaging, wire harness fixings (fasteners, rubber, wire harness brackets, etc.) and wire harness accessories.

The main component of the automobile connecting wire, usually called a wire, is the main part of the wiring harness. Its main function is to carry the current required by the load. An important parameter of a conductor is the current carrying capacity, which is affected by the conductor diameter, conductor length, conductor resistivity and ambient temperature.

Automotive connectors are also called connectors. Connectors are indispensable components when connecting wire harnesses to other electrical equipment. They are divided into wire harness side connectors and electrical equipment side connectors. We often hear about male connectors (male terminals and female connectors). A connector with positive terminals is called a positive connector, and a connector with negative terminals is called a negative connector. The thing on one side of our harness is usually a female connector. In wire harnesses, the connector is a relatively precise component. In order to ensure the connection performance of the wire harness assembly and electrical equipment, it is generally required to use a complete set of male and female connectors. In other words, it is very important to choose the same connector from the same manufacturer for important components and safety components of the car, such as airbags, ABS, etc. Connectors are usually divided into waterproof and non-waterproof types. At the beginning of the design, PIN pins of different widths are selected according to the magnitude of the current that should be carried on each PIN pin, and cavities are formed on the connector to accommodate different PIN pins, thereby forming a Housing that accommodates multiple PINs.

Its function is to ensure that after the plastic shell and electrical connector are assembled, the fasteners of the main locking mechanism will not be easily disengaged. Due to the particularity of its functions, when designing CPA, we can ensure the operability and visibility of system operation managers. Therefore, the CPA is a separate mechanism on the plastic housing and also requires a special color display. Waterproof sealing ring: There are two types of waterproof sealing mechanisms, one is used for sealing between plastic cases, and the other is used for sealing terminal leads.