What is a wiring harness?

What is a wiring harness? A wiring harness provides overall service equipment for a particular load source group, such as trunking, switching equipment, control systems, etc. I. The basic study of voice service theory is the study of the relationship between traffic volume, call loss, and harness capacity. Therefore, the wire harness is an important fundamental concept in voice service theory. ii. The service object of a wire harness is the load source, which usually refers to the user equipment; broadly speaking, the higher level equipment is the load source for the lower level equipment. In communications, the load source is also referred to as the call source, and the number of serving devices contained in the harness is referred to as the harness capacity. iii. The standard of a wire harness depends mainly on its crimp rate calculation, which requires special instruments. Mainly through cutting, polishing, corrosion, observation, measurement. Several steps such as quantity and calculation are done.

What is the reason for the good quality of wiring harness?

What is the reason for the good quality of wiring harness? Are essential key materials and components. It can be said that it is thanks to the technical support and quality control of Premium wire harness companies that the system in related fields is in such good condition. Of course, these professional wiring harness brands also strive to keep their product quality in a good state. The main reasons are as follows: First, the technical level is mature Obviously, the quality of wiring harness is first determined by the level of mature technology of its brand. Specifically, the relevant technologies and processes mastered by recognized brands in the wiring harness industry have reached a very outstanding level, while their process evaluation and control in the production process have been sufficiently professional and reliable. Second, rich production experience At the same time, the good quality of wiring harness products is also decided by the manufacturer's rich experience in related fields. Rich experience and a lot of actual production experience, make them have extremely high professional maturity, know how to control product quality, this from good wiring harness manufacturer is in the production of each link's quality control behavior can see. Third, the choice of high-quality and reliable products. It should be mentioned that the good quality of wiring harness products is also achieved through strict quality contro

The role of cable assembly

The role of cable assembly: Cable assemblyIt mainly includes wire, electromagnetic wire and electrical insulated wire, power cable, communication cable and optical cable. Cable assembly refers to materials used for power, communication and related transmission purposes. There is no hard and fast line between "wire" and "cable."Wiring Harness Usually the core number is less, the product diameter is small, simple structure of the product is called wire, no insulation is called wire, the other is called cable; The conductor with a larger cross-sectional area (greater than 6 square millimeters) is called a large wire, the conductor with a smaller cross-sectional area (less than or equal to 6 square millimeters) is called a small wire, and the insulated wire is also called a cloth wire. Cables include power cable, control cable, compensation cable, shielding cable, high temperature cable, computer cable, signal cable, coaxial cable, refractory cable, Marine cable and so on. They are made up of multiple strands of wire that are used to connect circuits, electrical appliances, etc.

The history of connector products

Connector products first appeared in 1939 in World War II, with the post-war development of television, telephone and other consumer electronics, connectors quickly expanded from military use to the general consumer electronics, automotive, and computers and other consulting areas. Chinese connector industry sprouted in 1940, by the United States investment in production, the initial use of the same military applications; after the withdrawal of U.S. investment in 1949, part of the technology and equipment left in China, which constituted the prototype of the development of the Chinese connector industry. From 1950 to 1970 for the initial development of China's connector industry, during the pre-war private enterprises and related enterprises to form a public-private partnership, and to establish various ministry factories and local state-owned factories, collective factories: such as 796 factories, 851 factories, Beijing radio components nine factories, Shanghai radio nine factories, etc.. At this time the production of connectors are mainly used in places associated with the military industry, aerospace industry. Since the implementation of China's reform and opening policy in 1980, connector products gradually into the livelihood of consumer electronics industry, due to China's ongoing reform, the implementation of the open door policy, attracting a large number of foreign investors to enter the Chinese mainland market through investment. 1987 was established in Shenzhen Sandu SAS Electronics Co. After 1990, the adoption of foreign investment policies and incentives in mainland China, encouraged by the connector manufacturers around the world almost all production bases have been transferred to China, including some of the world's major connector manufacturers: AMP, MOLEX, AMPHENOL, etc.. In foreign coun

The future of electronic connectors is faster, smaller, smarter and more environmentally friendly

Small connector, in fact, there is a big name, because the role of a bridge connector, is to achieve the technical path of the world's interconnection. Just in the upstream of the industry chain, the connector companies have always been just heroes behind the scenes, rarely exposed, so it is not familiar to end consumers. As the world's largest connector manufacturer, TE is the "invisible giant" of the name, almost all the electricity, signals, data flow where it has a figure. If the whole business sector as the basis, every day there are new products, from the automotive industry, sensing technology, to the industrial field of contactless applications, or mobile terminals, ultra-small antennas, business scope covers almost all countries from consumer, transportation, energy, industry and all other fields. When the Internet of Things and Industry 4.0 become the new market engine, TE is a component manufacturer with more and more responsibilities. In James's view, the core of these market hotspots is simply the word "connectivity", connectivity between cars, connectivity between household appliances, and connectivity between security facilities, including in industrial applications, the connection between equipment. Only the requirements for connectors are becoming more and more demanding. The future requirements of the connector is nothing but faster, smaller, smarter and more environmentally friendly. But each segment has a different focus, James said, for example, like the automotive industry needs to ensure the reliability and high quality of connectors in harsh environments, for the consumer electronics industry, thin and light is the most important, followed by reliability, but the reliability of the two is not a level. The speed of consumer electronics pushing the new to a certain extent and determi

RJ45 network connector PIN pin contact resistance and reliability of the 4 major factors

RJ45 network connector PIN pin contact resistance is mainly affected by the contact part material, vertical pressure, surface form, the use of voltage and current and other factors. 1, the contact material Network connector technical conditions for different materials made of the same specification plug-in contact parts, the provisions of different contact resistance assessment indicators. Fast separation of the general specifications of environmental resistance electrical connectors GJB101-86, the diameter of 1mm mating contact parts contact resistance, copper alloy ≤ 5mΩ, iron alloy ≤ 15mΩ. 2, the surface vertical pressure of the contact surface The surface vertical pressure of the contact parts is the force generated by the surfaces in contact with each other and perpendicular to the contact surface. With the increase of vertical pressure, the number and area of contact microdots also gradually increase, while the contact microdots from elastic deformation to plastic deformation transition. The contact resistance decreases due to the gradual decrease of the concentration resistance. The positive contact pressure mainly depends on the geometry and material properties of the contact parts. 3.Surface morphology Surface morphology includes the shape of the design and the environmental state in which the contact surface may be due to dust, rosin, oil and other mechanical adhesion deposition on the surface of the contact formed by a looser surface film, this surface film with particulate matter is very easy to embed in the microscopic pits of the contact surface, so that the contact area is reduced, the contact resistance increase

Differentiation of connectors, connectors, terminals

First, first of all, distinguish the "connector", "terminal block", "plug-in" three concepts of distinction ① Connector, that is, CONNECTOR, also called connector connector. Is a frequent contact with electronic engineers and technicians of a component. Also called connectors, plugs and sockets. Generally refers to electrical connectors. That is, the device that connects two active devices to transmit current or signal. ② connector is a positioning connector to connect electronic circuits, is composed of two parts, namely, plug-in, and connector, the general state is completely separable, the same place of the switch and connector is through its contact with the contact state of the change to achieve the purpose of the conversion of its connected circuit, and the essential difference is that the plug-in connector is only inserted and removed in two states, the switch can achieve the conversion of the circuit on its body, while The connector can not achieve the conversion on the body, the contact of the connector on the existence of a fixed correspondence, therefore, the connector can also be called connectors. ③ terminal block, the English name Terminal (terminal). Is used to achieve an electrical connection of an accessory product, industry is divided into the category of connectors. Terminal is to facilitate the application of wire connection, it is actually a section of metal sealed inside the insulating plastic, both ends have holes, can be inserted into the wire. Terminal block can be divided into WUK terminal block, European terminal block series, plug-in terminal block series, etc. Second, from the scope of attribution to distinguish the "connector", "terminal block", "plug-in" ① "connector = plug-in" is t

Mainland into the world`s largest dumping of electronic waste

UNU recently released the world`s first "regional e-waste inspection" research report, referring to 12 Asian countries and regions constitute the largest consumer electronics group, accounting for nearly half of the market, including mainland China, including East Asia and Southeast Asia, the number of electronic waste from 2010 Growing by 63% between 2015 and 2015, and the total volume of e-waste and per-capita production are growing rapidly, exceeding the population growth rate and putting pressure on the environment. The report pointed out that technological innovation to speed up the frequency of new product launches, especially the replacement of portable electronic products faster and faster, leading to the continued increase in e-waste in Asia. UN researchers point to the alarming rise in the number of e-waste countries in countries that are not environmentally responsible for managing their e-waste management infrastructure. Mainland into the world`s largest dumping of electronic waste The researchers warn that the widespread dumping of inappropriate and illegal electronic garbage in most Asian countries has not legislated on electronic junk. It is worth noting that the amount of e-waste produced in mainland China topped that of 6.68 million tons in 2015. The report argues that the lack of treatment of the concept of electronic waste, disposal sites and recycling mechanisms, the status quo, resulting in consumers, dismantlers and recyclers as the main body of illegal dumping, once legislation or improper management, it will lead to the proliferation of e-waste. According to data from mainland China, the mainland is the largest dumping site in the world. 30% to 40% of the global e-waste is shipped to Asia, of whic

For the first time in history, Chinese scientists successfully achieved counterfactual quantum communication

Compared with the traditional methods of communication, quantum communication with high security as the future direction of communications development, often reported quantum communications are based on the principle of entanglement, today to introduce a more weird form - Anti-Fictitious Communication: There is no quantum communication between two recipients for the quantum communication. The effect of not sending the quantum state of the particle transmission is also called the quantum Zeno effect. According to a recent report by the Physiotherapist Organization Network, researchers at China University of Technology successfully implemented direct counter-factual quantum communication, transmitting a black-and-white bitmap from one location to another without sending any physical particles, For the first time. The research was designed and experimented by the cooperation between China University of Science and Technology Shanghai Branch and Hefei Branch and Tsinghua University Chinese scientists, and successfully implemented counterfactual communication with a nested quantum Zeno effect. Quantum Zeno effect occurs in unstable quantum systems that are repeatedly measured. In the quantum world, observing or measuring systems can cause changes in the system. In this case, unstable particles will never decay when observed repeatedly. The quantum Zeno effect creates a virtually frozen system with a high probability. The study was published in the Proceedings of the National Academy of Sciences.

QbeamLab, the first powder bed electron beam 3D printer in China, is available

Recently, QbeamLab, the first-generation open source electron beam metal 3D printer in China, was officially released at Tianjin High-end Equipment Research Institute of Tsinghua University. Lin Feng, Chief Scientist of Tsinghua University, He Yongyong, Executive Vice President of Tianjin High-end Equipment Research Institute of Tsinghua University, Science and Technology Commission of Toray District, Director of Management Committee of Huaming High-tech Zone, Fu Sheng, Ministry of Industry and Information Technology of the PRC for Additive Manufacturing Industry Union executive secretary Li Fangzheng attended the conference. Electron Beam Selective Melting (EBSM) Metallic 3D printing uses electron beams as the energy source to create solid parts by layer-by-layer melting of metal powders under high vacuum conditions. Due to the high electron beam power and high energy absorption rate of the electron beam, EBSM technology has the advantages of high component density, low oxygen content, low thermal stress, low deformation and cracking, low price of powder consumables and high printing efficiency. In particular, refractory hard-to-metal materials with 3D printing has unique advantages and applications, widely used in orthopedics, aerospace and other fields. For example, a number of domestic and foreign medical device companies including Icahn Medical have used EBSM to manufacture orthopedic implants such as the hip joint and vertebral body, and have successfully obtained FDA and CFDA medical registration certificates. GE companies using EBSM technology bulk production of titanium aluminum alloy low-pressure turbine blades, manufacturing costs close to the precision casting, weight reduction of 30%, will eventually replace all the cast blades, installed in the latest aircraft engines. Open source electron beam 3D printer QbeamLab by the Tianjin High-en

2017 Intelligent Manufacturing World Tour Japan articles

With the new round of scientific & technological revolution & the rise of industrial revolution, intelligent manufacturing is becoming an important direction for manufacturing changes in the world & the commanding height of competition. Major manufacturing countries have introduced relevant strategies & policies to promote smart manufacturing to seize the high ground of a new round of industrial development. Advanced Manufacturing All-media based on the manufacturing sector, service industry development, will launch the "2017 Smart Manufacturing World Tour" series of articles for you to sort out & summarize major smart manufacturing countries & regions in 2017 major issues. Introduced today is the Japanese articles of the robot chapter. As a powerhouse for robotics, Japan achieved very rich results in 2017 & is closely integrated with its national conditions. Based on the serious population aging, low fertility, labor shortage & frequent earthquake disasters, Japan has made great efforts to develop medical & nursing robots, industrial robots & rescue robots. In April 2017, Tmsuk R & D Inc., a Japanese medical venture capital firm, partnered with Tottori University Hospital to develop a 3D printing simulation robot called Mikoto, designed to help train young doctors, medical students & emergency responders. Students can learn & explore by simulating the operation of the robot to improve the combat capability & ensure the patient`s life safety. In May, Tokyo Institute of Technology in Japan developed a lightweight four-legged robot that can carry heavy loads. The chemical fibers are used at the joints of the robot joints to make the machine lighter & more powerful, delivering 3 times the output power of an equivalent weight ro

Tactile and self-healing robot is becoming a reality

Human skin is difficult to duplicate because it is not only flexible, tactile and self healing. However, the latest discoveries by scientists are giving such characteristics to robotic skin. Do you think only the life of the skin is flexible and compressive, tactile, self-healing? Recent research shows that robotic skin can and may even perform better than human skin. Researchers at the University of Glasgow in the UK used graphene to develop an electronic robot skin that is more tactile than human hands. According to foreign media reports, Glasgow University professor Ravinder Dahiya said the newly developed robot skin is essentially a tactile sensor that scientists will use to create more lightweight prostheses and softer, more natural-looking robots on the surface. This sensor is also the first step toward softer robots and more sensitive touch screen sensors. This low-power smart robot skin is made of a layer of monatomic layer graphene. The power per square centimeter of skin is 20 nanoWatt, which is equivalent to the lowest quality photovoltaic cell available at the moment. While the skin`s photovoltaic cells can not store the energy they generate, engineering teams are exploring ways to transfer unused energy to the battery for use when needed. Graphene is a new type of nanomaterial found to be the thinnest, the largest in strength and the most conductive and thermally conductive. Due to its good strength, flexibility, electrical conductivity and other characteristics, it has great potential in the fields of physics, materials science and electronic information. In terms of optical properties, some studies have shown that singl

Mainland into the world`s largest dumping of electronic waste

UNU recently released the world`s first "regional e-waste inspection" research report, referring to 12 Asian countries and regions constitute the largest consumer electronics group, accounting for nearly half of the market, including mainland China, including East Asia and Southeast Asia, the number of electronic waste from 2010 Growing by 63% between 2015 and 2015, and the total volume of e-waste and per-capita production are growing rapidly, exceeding the population growth rate and putting pressure on the environment. The report pointed out that technological innovation to speed up the frequency of new product launches, especially the replacement of portable electronic products faster and faster, leading to the continued increase in e-waste in Asia. UN researchers point to the alarming rise in the number of e-waste countries in countries that are not environmentally responsible for managing their e-waste management infrastructure. Mainland into the world`s largest dumping of electronic waste

Mobile security long way to go, the key to the enterprise-level market growth?

With the new round of scientific & technological revolution & the rise of industrial revolution, intelligent manufacturing is becoming an important direction for manufacturing changes in the world & the commanding height of competition. Major manufacturing countries have introduced relevant strategies & policies to promote smart manufacturing to seize the high ground of a new round of industrial development. Advanced Manufacturing All-media based on the manufacturing sector, service industry development, will launch the "2017 Smart Manufacturing World Tour" series of articles for you to sort out & summarize major smart manufacturing countries & regions in 2017 major issues. Introduced today is the Japanese articles of the robot chapter. As a powerhouse for robotics, Japan achieved very rich results in 2017 & is closely integrated with its national conditions. Based on the serious population aging, low fertility, labor shortage & frequent earthquake disasters, Japan has made great efforts to develop medical & nursing robots, industrial robots & rescue robots. In April 2017, Tmsuk R & D Inc., a Japanese medical venture capital firm, partnered with Tottori University Hospital to develop a 3D printing simulation robot called Mikoto, designed to help train young doctors, medical students & emergency responders. Students can learn & explore by simulating the operation of the robot to improve the combat capability & ensure the patient`s life safety. In May, Tokyo Institute of Technology in Japan developed a lightweight four-legged robot that can carry heavy loads. The chemical fibers are used at the joints of the robot joints to make the machine lighter & more powerful, delivering 3 times the output power of an equivalent weight

3 Products That Keep Modern Industrial Automation Humming

New Tech Tuesdays Join journalist Tommy Cummings for a weekly look at all things interesting, new, and noteworthy for design engineers. Keeping modern industrial automation humming-from maintaining assembly lines running to managing power distribution-requires a multitude of products for businesses of all sizes. Manufacturers continually strive to create and refine products that will enhance productivity and safety while controlling costs. Maintaining automation standards means better customer service, the lifeblood for manufacturers in a competitive environment. This means increasing and upgrading quality, flexibility, and data analysis collection in the manufacturing process and building on the productivity gains associated with automation, including robots and collaborative robots. With so many moving parts, it`s a process that seems to have no end. Robots and cobots are significant to industrial automation`s progression. The evolution of Industry 4.0 has room for humans and bots working together on the factory floor. A 2017 International Federation of Robotics` positioning paper maintains that automation and the ongoing development of robotics have a positive impact on employment, job quality, and wages. To accomplish this progression, automation developers require a diverse array of parts-sensors providing raw data and feedback, control systems, programmable logic, connected embedded devices. This week`s New Tech Tuesdays highlights three of those products available to keep the industrial hum - humming. From Actuators to Switch Gear to Position Sensor Trinamic PD42-1-1243-IOLINK PANdrive™ IO-Link™ Actuator enables smart facto

Wide range of FPC connectors

FPC connector, that is, FFC sheet flat line connector, currently the main brave connection between the computer hardware and LED components, in recent years, as FPC connectors continue to develop innovation, with smaller size and high flexibility FPC connectors have also been widely used in home appliances, office equipment. With the popularity of smart phones, tablet PCs, FPC connectors are also the most important market for consumer electronics. In addition, instrumentation, automotive electronics, medical equipment, military equipment and other convenient also have part of the FFC connector market. There are about 1000 connector manufacturers in mainland China, of which nearly 300 are foreign-owned or joint ventures. Most manufacturers produce various types of connectors, which also specializes in the production of FFC connectors and manufacturers. Most FPC connector manufacturers also believe that with the expanding market for consumer electronics such as smart phones and tablet PCs, FPC/FFC connectors will continue to grow in demand and gradually. In the rapid development of science and technology today, a variety of electronic products are changing rapidly, smart phones, tablet PCs are increasingly designed to light, thin, small standards, product performance also requires increasingly strong, increasingly responsive. And FPC connectors to not lose this largest market cake, you must follow the trend, and constantly improve, optimize the product, in order not to be eliminated by the trend.

Pin, Female, Board-to-Board Connectors Market Analysis

1. The threat of new entrants Pin, female, pin and female, board-to-board connectors as an indispensable and important accessory in products and equipment, the proportion of procurement in many product applications has exceeded 8% of the total procurement cost. And compared with other key components, connectors have a wider range of choices and more room for local procurement, so its industry barriers to entry are not high. Barriers to entry exist mainly in product differentiation advantages, economies of scale, while sales channels, capital requirements, conversion costs, cost advantages and other aspects of no special requirements. But the vitality of the connector market and the high growth potential in communications in the railroad, energy industry, machinery industry, etc., is attracting more and more new entrants. 2. The threat of substitutes The main substitutes for connectors are terminal blocks. Is in the high-end market, the connector is not threatened by substitutes, which is mainly the connector itself is developed from terminal blocks, is for the convenience of the cable, fast error-free plugging. In the low-end market, the connector is threatened by substitutes, when the buyer is under pressure from the cost, it will choose the general quality, cheap terminal blocks. 3. Bargaining power of the buyer The buyer of the connector is the product and equipment manufacturers, the buyer's concentration is high: the buyer from the industry to buy the product in its total cost where the proportion of about 10%; the buyer from the industry to buy the degree of standardization is increasing: the buyer's profitability has a tendency to reduce; the buyer has the ability to backward integration; both sides of the

Why use connectors?

Connector this industry is very large, and its many types, such as IT host internal connectors, host peripheral connectors (I/O), equipment connectors, cell phone connectors; industrial connectors, automotive connectors, new energy connectors and so on; I through the exchange of connectors and the connector seniors and the collection of relevant market information, and you come together to understand the basic connectors Imagine if there is no connector will be how? This circuit between the continuous conductor to be permanently connected together, such as electronic devices to be connected to the power supply, you must connect the two ends of the wire, and electronic devices and power supply through some method (such as welding) fixed firmly; in this way, both for the production or use, have brought a lot of inconvenience. Take the car battery for example; assume that the battery cable is fixed welded to the battery, the car manufacturer to install the battery will increase the workload, increasing production time and costs; battery damage needs to be replaced, but also to send the car to the repair station, desoldering to remove the old, and then welded on the new, to pay more labor costs; with a connector can be free of many troubles, buy a new battery from the store, disconnect the connector, remove the This simple example illustrates the benefits of connectors; it makes the design and production process easier and more flexible, reducing production and maintenance costs. The benefits of using connectors: it makes the design and production process easier and more flexible, and reduces production and maintenance costs.