Cables: all cables consist of three types of wires. The first is to carry current, the second is to make the circuit complete, and the third is the grounding wire. These wires have different specification numbers, sizes and codes. The codes marked on them tell us their insulation and electrical capabilities. If the cable you use is marked "G", use a ground wire. One common example of this type of cable is the use 12 – 3/g cable. Cables usually have nm-b, BX and uf-b sheaths. They can be roughly divided into two types according to their conductors. The first is a two core cable, and the second is a three core cableNowadays, like everything else, wires and cables can also be purchased online. Many suppliers on the Internet are committed to providing all types of wires and electrical equipment online at a cost-effective price.

IATF (International Automotive Task Force) is a specialized organization established in 1996 by the world's major auto manufacturers and associations.   In order to harmonize the international automotive quality system specifications, a specialized agency was established in 1996 by the world's major automobile manufacturers and associations, called the International Automotive Task Force (IATF). IATF members include the International Organization for Standardization Quality Management and Quality Assurance Technical Committee (ISO/TC176), the Italian Automobile Industry Association (ANFIA), the French Automobile Manufacturers Committee (CCFA) and the Automobile Equipment Industry Federation (FIEV), the German Automobile Industry Association (VDA), car manufacturers such as BMW, Chrysler, Fiat, Ford, General Motors, Renault and Volkswagen, among others.

On December 24, Xiaomi Auto's Weibo account and video number were launched one after another. Yesterday evening, Lei Jun, as the founder of Xiaomi, also posted @mi car on his personal micro blog. This series of operations has also made many industry insiders speculate that millet cars will have major news.   On December 26, Xiaomi's official microblog and Lei Jun's microblog simultaneously issued a statement saying: A technical conference will be held at 2 PM on December 28. At the same time, it is also accompanied by a publicity picture on the theme of "crossing". From the picture, it can be seen that the background of the publicity picture is the overhead perspective view of the millet car, and the design details of the front suspension, balance bar, anti-tilt bar, front spare car, and front motor can be clearly seen in the picture. For the hidden intelligence of this propaganda picture, it has also attracted many netizens' speculation, and some netizens have marked out the details of the poster.   Some automotive media comments said: this configuration of the Xiaomi car can not be sold at a very low price. Some digital bloggers also participated in the comments that the cabin floor beam arrangement, the battery should use CTP or CTB technology, from the tire texture, like Michelin PSEV, the front suspension front double fork arm, the rear probability is five linkages, and from the organ accelerator pedal point of view, the positioning is more sports. In this way, the cost of SU7 is indeed higher.   For the arrival of Xiaomi cars, Lei Jun said in his personal microblog today that it has been 1000 days since Xiaomi's official propaganda car was made, and many people asked "how is Xiaomi making cars so slow", and friends said, "I heard that electric cars are easy to make, and small companies with two or three hundred people can make cars in less than two years." In response to the slow building of Xiaomi cars, Lei Jun responded in the article: Today's automobile industry, it is not difficult to save a car. Just get a car, reverse engineer it, change the look, and we'll be done in no time. But with 200 new cars released every year on the market today, does Xiaomi need to save another one? Therefore, when the Xiaomi car team was just formed, we had a meeting for three days and three nights, and only discussed a simple question: to join Xiaomi, what kind of car do you want to build? Later, all the staff agreed: there is no shortcut to building a car. Adhere to the forward development, starting from the underlying core technology, ten times investment, build a good car! These technologies will also be fully displayed to everyone at the Xiaomi Car technology conference on December 28. Regarding the content of the Xiaomi automobile technology conference on December 28, Lei Jun also revealed on Weibo that this time, only the technology is issued, not the product.   It is worth noting that since Lei Jun announced the construction of c...

With the rapid development of new energy automobile industry, new energy wiring harnesses get development opportunities. The difference between a high-voltage wire harness and a low-voltage wire harness is that the high-voltage terminal tends to generate heat due to the high current passing through the terminal. As a result, the mechanical strength of the terminal and the insulation performance of the wire harness are decreased, and the oxidation of the conductor further aggravates the heating.   High voltage terminal crimping needs to consider both the reliability of the crimp and the low temperature rise of the crimp. High voltage terminals are commonly crimped Crimping, resistance welding, high frequency welding Crimping uses crimping equipment and dies to join wires and terminals together through a crimping process. High frequency welding is the use of high frequency welding machine to weld wire and terminal together. Resistance welding is the use of special resistance welding equipment to connect the wire and terminal together. Advantage Simple operation, convenient maintenance, low manufacturing cost, high operating efficiency, suitable for mass production. Shortcomings The wiring harnesses and terminals that require high current pass rate and low resistance after the connectors are connected cannot be met. Figure 1 shows the common crimping modes of large square high voltage terminals, which are hexagonal closed terminals. The advantages of ordinary crimping are obvious, but how to make ordinary crimping develop advantages and avoid disadvantages, as far as possible to reduce the resistance is particularly important. Reducing resistance means reducing heat, reducing product temperature rise, making product life and quality better.   Hazard of terminal heating After the terminal is heated, it is easy to oxidize itself and the contact surface of the conductor of the wire, generating oxide film, so that the contact resistance increases, and the increasing speed increases exponentially with the increase of temperature, further increasing the terminal temperature rise speed, and serious fire will be caused. At the same time, the elastic element of the contact structure will be annealed, the contact pressure will be reduced, and the contact resistance will be increased further. In addition, the heating will make the wire insulation layer connected to the terminal aging brittle, resulting in a decline in insulation performance, there is the risk of leakage overheating caused by fire.   As shown in Figure 2, the high voltage wiring harness has three heat sources. Terminal three heat source : Conductor Conductor: The conductor itself has a resistance. The smaller the cross-sectional area, the higher the resistance. Resistance will cause heating. Terminal compaction: insufficient compression ratio will make the conductor loose, resulting in large resistance, easy to heat. Excessive crimping is easy to cause small cross-sectional area,...

Solution 1:   According to the wiring harness configuration list of the vehicle and the wiring harness direction in the 3D wiring diagram, the measurement tools in CATIA are used to measure the required sizes of each trunk, branch, buckle, cable tie and rubber parts according to the drawing requirements of the wiring harness diagram. The 2D diagram can be arranged through reasonable design, and the outline of the wiring harness diagram can be basically determined.     Solution 2: In the process of automobile circuit design, in order to understand the actual situation of automobile electrical equipment in detail and facilitate the arrangement and connection of automobile circuit, engineers need to rely on the schematic diagram, automobile circuit diagram and application diagram. Although the diagram reflects the actual installation position of the electrical equipment on the vehicle, the criss-cross wires in the diagram increase the difficulty of reading the diagram. In order to make the circuit diagram more close to the reality, it is often necessary to draw the wiring harness installation diagram. Wiring harness diagram is the whole car circuit diagram drawn according to the actual installation position of electrical equipment on the car, mainly based on the formation of wiring harness, the drawing surface of the line is less, the expression of the connection between the components has become its main content, in order to express the color of the wire, the terminal code of the joint, often supplemented with wiring harness grouping and terminal number table and wiring harness terminal wiring table. The contents of the wiring harness First, the composition of the wire harness The automobile wiring harness diagram is composed of multiple wiring harnesses, including main line harnesses and branch wiring harnesses. The diagram should show the composition of each wire harness, how many branches there are on each harness, how many wires there are on each branch, the color of the wire and what the stripes are. Two, the length of the wire harness The length of the wire harness includes the total length of the wire harness, the length of each branch and the length of the interval between two wire ends. Three, connection code and connection mark The number of electric appliances on the car is large and complex, in order to make the connection correct, each connection point should be marked with connection code and connection mark, so as to facilitate the connection. Four, the adapter Because there are multiple wiring harnesses, wiring harnesses and wiring harnesses, branches and wiring harnesses, or branches and electrical appliances are all connected through the connector, it should be indicated how many wires on each connector, where each wire is located in the wiring hole of the connector, what kind of shape of the connector, whether the adjacent several connectors are easy to be confused. Color of wire In order to make you understand the...

The development direction of automotive wiring harness   Competition among wire harness manufacturers has intensified. Product development to a certain period, competitors will also have scale, strength, integrity of the enterprise to compete. Smaller companies will be weeded out. Wiring harness assembly is increasingly concentrated in technologically capable enterprises.     Because the automotive wiring harness is different from the general wiring harness, there are some electronic components attached to the car wiring harness, such as sensors, thick film circuit mixed, such electronic components have high technical content, emphasizing the technical safety and reliability; Has gone beyond simple, generic assembly. It is reported that a mid-range car, there are nearly a thousand interface, more than 30 microprocessors, hundreds of pairs of connectors, the total length of wire used is 1500m-2000m. With the development of IT technology and the emergence of E concept car, put forward the development direction of automobile network, modular, network cluster has been ready to appear, so that the wiring harness manufacturing technology will appear a second leap. The function of wire harness extends from ordinary signal transmission to data transmission.     In addition, the limitations of wire transmission signal, the extensive use of fiber optic cable, automotive wiring harness manufacturing technology for the third leap, cable with transmission speed, large capacity, small volume, strong confidentiality, anti-interference advantages of the good, will soon be a thing of the future automobile data processing and exchange of important material optimization, the power and signal distribution system into a new stage of historical development. Fiber-optic cables are already being used in BMW's D-Class cars, and the Japanese are following suit. The main development trends of wire harness technology are as follows:   1.Multi-channel transmission technology: The technology refers to the transmission of multiple signals over a common media, make the electronic controller can share information, avoids a single connection, the application of this new technology, make the wire connection to simplify, compact structure, can reduce weight, also can reduce the cost, because the information is widely Shared, rather than simply copying, therefore, for fault diagnosis, more accurate, Engineering changes are faster and defects are more easily repaired.   2. Multi-station connection technology: the technology refers to the internal connection system can connect multiple intelligent devices, it can not only share battery energy, reliable grounding, more importantly, it can share data, the technology greatly reduces the input and output of the module, the number of counts, simplify the module and wiring harness assembly; Due to the reduction of a large number of contact points, production cycle, production costs will be s...

Electronica China Munich Electronics Show is an exhibition of the electronics industry and an important event in the industry. Over the years, the exhibition has become an innovative platform to lead future electronic technology, incarnating Planet E. The innovation of Planet E helps people to understand more intuitively the driving force behind the development of the electronic world. Aichi Electronics will participate in the exhibition from November 10 to 13, 202211 to witness the development trend of the global electronics industry.

The Tesla Cybertruck revolutionized the automotive industry with its groundbreaking 48V electrical system and steering-by-wire system. Of course, if the wiring harness does not have a new way of wiring, communication methods do not have a new change, this revolutionary progress is impossible to achieve.   Tesla Motors has recently applied for a patent and is eyeing wiring harnesses. Cybertruck may look a little underwhelming, and it doesn't feel as good as Musk previously said it would.   However, Cybertruck's advanced technology did not disappoint. One of them is the 48V low-voltage electrical system(low-voltage electrical wire harness) used in production vehicles for the first time. By dramatically improving and simplifying the electrical architecture, Tesla will be able to build the next generation of electric vehicles at a better cost.     Tesla has announced that Cybertruck's cabling architecture will be significantly simplified compared to previous Tesla electric vehicles. Tesla achieves this by using multiple local controllers connected to a high-speed communication bus instead of connecting each electrical component to a central controller. To understand this situation, it is necessary to talk about traditional vehicles. Typically, every sensor and electrical component on a vehicle must be connected to a central controller and low-voltage system to obtain power. Sometimes, this means complex parts require a lot of wire. Let's take doors for example. It may contain sensors that signal to the car's computer that the car is on, off, or tilted. The same is true for Windows, which have buttons that trigger opening and closing. These switches are connected to the vehicle's controller, which in turn is connected to the window actuator to lower or raise the glass.   That's when we add speakers, airbags, cameras... You'll understand why the harness is so messy. Wires in modern vehicles extend for many kilometers, adding complexity, cost, and weight. To make matters worse, building and installing them is mostly done by hand. These are expensive and time-consuming processes that Tesla wants to eliminate.   That's why it came up with the idea of a distributed controller. Vehicles will be equipped with many local controllers for various functions, rather than a central unit.   Distributed controller For example, a door controller is responsible for putting Windows, speakers, lights, mirrors, and other components into the electrical input before it can work. In this case, the wires are short and can be fully contained within the door assembly. The doors will then be connected to the vehicle's data bus with just two wires, which also provide power to the electrical components. All the complex functions of a door can be achieved with just two wires, compared to more than a dozen in a conventional car, which is what Tesla has done with the Cybertruck.   The electric pickup uses a steer-by-wire system that requires a...

The challenge of wiring harness supply reflects global logistics     Wiring harnesses became an industry hot spot when the war in Ukraine caused a sudden shortage, but the challenges facing the industry go well beyond the events of 2022.   Due to advanced driver assistance features and the already severe lack of automation and high chip requirements in manufacturing, increasing complexity makes automotive wiring harness production one of the most critical development areas in the industry.   Auto Wire harness     Increasing sensor technology and driver assistance features in cars are making them safer and providing drivers with peace of mind.   Autopilot mode is on the rise in popularity, but even relatively basic cameras to help with parking and infotainment displays can make wiring harps more complex and require more high-speed data cables. Electrification adds extra complexity by introducing battery and brake regeneration management, which means more computing power to make the car as efficient as possible. The more wires and structures are needed, the greater the challenge of supplying the parts and actually making the harness.       Automation Automation in harness manufacturing comes from two sources: the need to make production lines and harness manufacturing processes more efficient, and on the vehicle side, the increasing need for sensors and computers to manage advanced driver assistance systems (ADAS).       Although fully autonomous vehicles are still a long way from production, consumers now expect a variety of driver assistants in their cars. Features such as lidar or other camera technology increase the need for a new data line that must be high-speed enough to provide information in real time.   Companies such as Aptiv are providing the technology for smart cars. Do Sohn, Aptiv's global director of innovation, will speak at the Automotive Wiring Harness Conference in Detroit in October. Also, manufacturers need to look for new technologies, such as fully automatic stranding. Simon Abegg, director of twist machines in Komax's product group, will detail the new robotic process, even for 0.13mm wires. Bob Potock, Zuken's vice president of marketing, will also talk about how digital visualization can help set up wiring harnesses and streamline processes.   Connection     The increasing complexity of wiring harness design, the need for faster cables, and the increasing amount of data being transferred in the car mean that the speed at which data can be moved is important. Frederic Holtzman and Johannes Schmid argue that copper wiring is an essential part of this, not a limitation, and he will show how wiring has been able to reach 100G in automotive wiring harnesses, but the problem lies more in semiconductors. Trying to make the most of lightweight wiring will be key to driving vehicle automation.   Electrification     As the auto ...

At present, the COVID-19 epidemic has lasted for a long time in the world, and the prevention and control policies are relatively comprehensive. From November 15 to November 18, 2022, Aichie Tech Electronics Co Ltd will participate in the 2022 Electronic Components Show in Munich, Germany.     Founded in 1964, Munich International Electronic Components, Materials and Production Equipment (Electronica) has become one of the largest and most influential electronic components fairs in Europe and the world after more than 50 years of development.   It is reported, electronica 2022 | Messe Munchen is the world's leading electronics trade show and conference exhibitors target groups including the products and services provided by the company for development, quality control, maintenance and repair of electronic components, equipment and machinery. Related Industries: Electrical Engineering, electronics, Retail Trade (distributor), telecommunications, Mechanical engineering, Service provider, Software technology, data processing. As the visitor's target group, developers and designers of application-oriented electronic circuits and products.   That's a good reason for your visit The Electronics Show is the most important international conference venue for the electronics industry. The world's leading trade show covers the entire electronic spectrum from components to systems, applications and services. Extensive conference and support programs highlight automotive, embedded, semiconductor, and wireless and networking startups associated with the industry.   Electronica 2018 in retrospect       Aichie Tech Electronics Co., Ltd. will participate in Electronica 2022 as a merchant, booth number is A2 136; Our company will hold a demonstration there from November 15 to November 18. Visit our booth to learn more about our development in connectors, wires and cables, cable assembly and EV Charger Cable; At that time, we will show our recent and future new products, you can communicate with the CEO at our booth, looking forward to your visit!       A2 136 Electronica 2022 15th - 18th November Munich, Germany   Aichie Tech Electronics Co.,Ltd Email: sales03@aichie.com