Introduction of electronic wire harness

<p>Definition and composition of wire harness:</p><p>The components of the ordinary <a href="https://www.mcccable.com/wire-harness" rel="noopener noreferrer" target="_blank">wire harness</a> are: wires, terminals, and plastic parts.</p><p>In the electronics industry, it means "electronic wire harness". It generally refers to a low-voltage electronic wiring group. It builds a bridge of communication between two or more isolated electronic circuits, so as to allow current to flow and realize the integration of various electronic components. Various functions, it is an indispensable part of all kinds of electrical and electronic equipment, the composition of the complex wire harness must be added: tape, cable tie, sleeve, sheath, label, etc.</p><p><br></p><p>Home wire harness:</p><p>The home wire harness is the main body of the circuit. Without the home wire harness, there is no home appliance circuit. At present, whether it is a high-end luxury home appliance or an economical ordinary home appliance, the wire harness braided form is basically the same, consisting of wires, connectors and wrapping tape. Home appliance wires are also called low voltage wires, which are different from ordinary household wires. Ordinary household wires are copper single-core wires with certain hardness. Home appliance wires are copper multi-core cords. Some cords are as thin as hair. 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. The common specifications of wires in the home wire harness are wires with a nominal cross-sectional area of ​​0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 4.0, 6.0, etc. square millimeters, each of which has an allowable load current value and is suitable for electrical equipment of different powers. Use wires of different specifications.</p><p><br></p><p>Single-core wire harness and multi-core wire harness:</p><p>Single-core and multi-core are actually the difference between single-strand and multi-strand. The core wire of the multi-core flexible wire is thinner than the single-core hard wire. , The current has a skin effect, and when the cross-sectional area of a single strand is equal, the ability to transmit current points is relatively large, and the heat generation must be greater than that of a single strand. Multi-stranded wires are soft and easy to handle, while single-core wires are hard to handle. Single-core hard wire, stripped of the insulation is a solid copper wire, the cross-sectional area is generally 1.5mm2, 2.5mm2, 4mm2. Regarding why copper is used as the material instead of aluminum, the reasons: large internal resistance, low current carrying capacity, poor tensile strength, easy to form an oxide layer, and short service life.</p>