Basic Design Points for Electronic Harnesses

As the requirements of industrial applications nowadays continue to increase, the requirements for wiring are gradually approaching the limit level of electronic wiring harnesses, so the accuracy of test equipment testing is becoming more and more important. Inaccurate or impractical test equipment will cause serious harm to the normal operation of the entire system later.

Electronic wire harness product process design is the input and output process of the product, the entire design program is centered on quality, cost, operability to start, and ultimately meet the product characteristics of the various requirements, while controlling manufacturing costs. When the process design is unfolded, the first to consider the quality of electronic wire harness products, to ensure that the location of the contact point does not overlap, but not too large, not designed in the branch; secondly, consider the operability of the workers production to minimize the difficulty of the work; and finally, according to the principle of the proximity of the hitch wire, try to save wire. Determine the lap wire in the wiring harness internal centralized crimping point location, the centralized connection of internal connection points, the development of technical requirements. Due to the different automotive wire harnesses in the branch location, size, and electrical function, the location of the hitch point, the number of different, the internal connection of the lap wire diversified. With the increase in automobile functions, the universal application of electronic control technology, coupled with people's safety, comfort and economic requirements of the car more and more high, the car's electrical configuration, electrical function is also more and more; electrical components more and more, the electronic wiring harness will be more and more; connecting the various electrical components of the electronic wiring harness is also more and more complex and automotive wiring harness also becomes more and more thick and heavy. Therefore, advanced automobiles have introduced a bus configuration using multiple transmission systems. Electronic wire harness filled with inorganic flame retardant, its mechanical strength, elongation at break than non-flame retardant polyolefin sheath material is much worse. Flame-retardant polyolefin sheath material mechanical strength is lower, commonly used flame-retardant polyolefin sheath material oxygen index of 25 - 28. Flame-retardant effect is not very good, only suitable for lower temperatures, appropriate movement or bending, flame retardant requirements are not too high occasions, is not suitable for the application of high flame retardant requirements in the electronic wire harness. Halogen-free, low-smoke flame-retardant polyolefin sheathing material has better flame retardancy and carbonization during combustion, and is suitable for use in halogen-free, low-smoke electronic wire harnesses with high flame retardancy requirements. When the wire from the harness separated from the electrical equipment connected to the electrical equipment, if the rated current of the electrical equipment is very small, the cross-section should also be smaller, at this time the main consideration of the section of the wire can withstand the automobile driving process, the vibration caused by the line breakage may be. Electronic harness to achieve the automotive supply chain of harness manufacturers in the decentralized network environment of the process card design computerization and standardization, can be effective management of various types of process graphic information and fast and accurate retrieval, to achieve a reduction in the labor intensity of craftspeople, shorten the process design cycle, to improve from the efficiency and quality of the process design, and to enhance the competitiveness of the enterprise purpose.

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