Automotive wiring harness is a variety of automotive power and signal distribution systems PASDS (Power and Signal Distribution System) transmission carrier. The current level of technology , the car features stronger , technical content and complexity of the higher its harness .

Harness Manufacturing Technology

A mid- level sedan has nearly harness connector interface , over thirty microprocessors and hundreds of connectors, the total length of wire used in 1500 to 2000 meters. Harness generally be divided into the instrument wiring harness, engine harness and body harness. With the development of information technology, automotive forward network , modular direction, network cluster has been pretty clear , functional expansion of the wiring harness from the ordinary signal is passed to the data transfer .
Due to the limitations of wire transmission signal , hinder the development of more and more vehicles , and the cable has a transmission speed , large capacity , small size, confidentiality, jamming good advantage , will soon become a future automotive data processing and exchange the preferred materials and will eventually replace traditional wiring harness , so that the power and signal distribution system entered a new historical stage of development. If BMW s D -Class sedans have used fiber optic technology , Japan has also been followed into the actual loading phase.

Upgrade technology infrastructure components

Basic components of a wire harness , contact terminals , terminal base ( commonly known as the jacket , plastic ) , rubber seal , wrap a protective layer ( tape , tape , sleeves , etc. ) . Wire terminals , the base is the most basic units harness is complete plug contact , transmission of the three basic functions of assurance, technical content and reliability of the wiring harness , which are mainly reflected in the Big Three .

* Wire : reduce signal transmission loss , anti- interference and reduce the volume of Hyundai Motor wire conductors must first solve the problem. Thin wall cable not only reduces the weight of the wire itself , reduce the volume, the more compact the base provided the conditions ; wire insulation outside the PVC from a single past to today s XLPE TPE PA PU FEP PFA and silicon rubber and the like ; halogen , non-toxic biodegradable materials have been applied to the production of automotive wires . Further , some of the important means to ensure as ABS ( anti-lock device ), SIR ( airbags ) , which do not interfere with the signal being triggered by mistake , the number of core strands of up to 50 times the normal conductors 40 , so that the conductor wire bundle stranded , coated there will be more stringent process requirements ;

* Contact Termination: from the simple structure of the terminal chip development as pinhole , leaf spring type, tuning fork , etc. ; material from the ordinary brass, copper conductivity and elasticity into a good performance phosphor bronze, beryllium copper , etc. ; after the substrate by a single terminal is also molded into composite materials coated free coating must also coated by the coating into the overall partial coating ; processing terminals from the simplest single -station shear stamping development multi- position progressive continuous molding press , after the original variety of materials were assembled into a variety of materials processed simultaneously molding a molding process ; processing speed of development over the past twenty times per minute, and now thousands of times per minute ; stamping after forming the terminals from the past into the bulk single coiled strip packaging to meet the processing requirements of continuity crimping . Due to advances in terminal design and craftsmanship , greatly improve the stability of the contacts , so that the wiring harness is also exponentially increase transmission reliability ;

* Base : In addition to protecting the terminals , an important feature of the base is to achieve the purpose of docking , convenient and reliable is a basic requirement . A variety of different performance appears thermoplastic materials , design and processing for the base to provide favorable conditions , but the key is to design the base and injection molding mold. Structural design is now widely used CAD assisted optimal design , structural design from the mold plate structure for the development of early mosaic structure ; molding from the development of a model of a multi-cavity mold cavity is parting ways from the past level of single development of a horizontal type , vertical type multi- surface injection point of the gate and the gate is cut has been widely adopted . Sealing cap and the widespread use of secondary locking CAP (Connector Position Assurance) technology , basically solved the problem of anti-vibration and corrosion .

Development trend of China s automotive wiring harness

Development of China s car industry is basically built on the basis of the introduction , the introduction of models determines the wiring harness production can only be developed generic or equivalent , and therefore the development of automotive wiring harness technology always lags behind the development of the vehicle ( following table reflects the Chinese development of automotive wire harness manufacturing technology and the gap with foreign countries ) . Currently, the popularity of Chinese cars , security, application is the main type , so the car harness technology will remain at current levels , but with the families of the car , the car s configuration requirements will also be increasingly diverse , complex, non-standardized , wiring harness plant tens of thousands of units, even hundreds of thousands of sets of exactly the same situation will be broken harness . Production of non-metallic conductive material use , integrated module wiring harness plant will be the first to study the subject in recent years .

Since the advent of high-performance detection with automatic crimping machine , then pierce the new technology , new sound equipment, and vehicle engineering change frequently, shorten lead times , traditions, workshop-style , hand- operated harness production will gradually be eliminated , thus improving the ability of independent development , design parameters , system design, vehicle design to maintain synchronization with the main development direction of China s automotive wiring harness industry.

Due to harness diverse functions , OEMs will be readily available parts plant requires a suitable spare parts, it will completely break the traditional mode of production and supply . Currently harness more power plants have to build vehicle plant location to accommodate the rapid response requirements in the United States and Europe , delivery time has been shortened to harness factory ninety minutes , which requires not only have a rapid response Harness Factory technical management systems and reliable quality assurance system , there must be a smooth material systems, and personnel training system . China s car production base pattern has been basically formed , driven by OEMs , has become harness scale production base, northeast, east harness production accounts for about 63% of the national market , and its ability for sustainable development is better than other areas.

Link Electronics Co., Ltd. , Dongguan City, automotive wiring harness industry as a professional manufacturer , according to customer requirements development and design of the harness. Committed to providing quality solutions for all types of harnesses and car manufacturers and automotive electrical manufacturers, such as: car special harness , vehicle wiring harness, car alarm wiring harness , DVD navigation wiring harness, various CABLE wire. Welcome to the new and old customers to buy them !


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