Abstract: On March 16, 2011, at the 6th Shanghai Connector Technology and Industry Development Forum at the Shanghai Electronics Show in Munich, the reporter interviewed Jiang Yiyi, Asia-Pacific engineering manager of the Delphi Connector Systems Product Business Unit . Take advantage of Delphi Connector's competitive advantages and trends.
Delphi Connector Systems Products Business Unit Asia Pacific Engineering Manager Jiang Yiyi
Reporter: Please tell us about the current competitive advantages and practical applications of the Delphi connector system.
Jiang Yiyi: Compared with our competitors, the electrical and electronic architecture is a big advantage for us. Delphi Packard Electric has a history of more than 100 years and has extensive experience in the design of automotive electrical systems. Delphi Pike has targeted technology in North America, Europe, Japan, and South Korea, so our solution is actually an integration of all experiences. Since Delphi Pike entered China, it has been dedicating its own advantages to its customers in China to help them improve their competitiveness. In this process, functionality is an important indicator and Delphi can design the most suitable solution for different OEMs.
Delphi's traditional connector system uses low voltage, low current, and later we developed high voltage and high current connector systems, as well as very high voltage and high current connectors. We have already cooperated with some domestic OEMs in China. They are all promoting hybrid vehicles. For the high current requirements of hybrid vehicles, Delphi provides ready-made solutions to them.
Reporter: What factors does Delphi consider when designing connectors?
Jiang Xiaoyi: People from the main plant may all know that the failure of the electrical system accounts for a higher percentage of vehicle faults, and most of them are on the connector. Therefore, the connector quality is particularly important for high voltage systems. The connector is the weakest link in the entire high voltage electrical circuit and has a high probability of failure, so there are many requirements for the high voltage connector. The first is safety, because of the high current and high voltage connector system, its safety is very important. In the past, the voltage inside the car was 12 volts. Even if the hand touched it, the problem was not great. There is now a voltage of 600 volts and a current of 250 amps in a high temperature environment of 150 degrees. This is a relatively high-grade, high-voltage, high-current connector. Safety is its primary consideration.
I mentioned the design of high-voltage loops at the connector technology and industry development forum. When we do connectors, we will use low-current connectors to protect them. In the case of not really plugged out, the low-current connector will tell the controller that the connection is cut off quickly, and the controller will cut off the power on the current, so when the connection is broken, the power supply voltage is gone. This is equivalent to pulling the switch, the gate has been turned off, no matter how pull the switch does not matter.
The second point is that electromagnetic radiation is also very important. Once the electromagnetic radiation is unqualified, some devices including DVDs and MP3s cannot be used normally. The third point is human finger protection. If the connector is exposed, it can be dangerous when the maintenance personnel's hands touch the bare connector. We use plastic cases to protect the connectors when we design them. When the connectors are plugged in and unplugged, the hands are unlikely to touch these terminals and will not be harmed.
In addition, in the design, we will also take into account water vapor, water fog and other factors, increase the distance of the surface through the loop, so that we can also protect our connector.
Reporter: Please predict the future development trend of the connector system.
Jiang Yiyi: Delphi believes there are three trends in the development of connectors: green, security, and connectivity. Green - Delphi's high-voltage, high-current connectors meet the environmental needs of new energy vehicles. Security - Delphi has been attaching great importance to the development of security features since its inception. Now that the cars are getting faster and faster, the functions of hybrid cars are also increasing. These changes mean that the requirements for safety functions of other electronic components are getting higher and higher. Unicom - nowadays the connector is mainly used for high data transmission, and the transmission rate is higher than before. The current technology trend is that the wires have become smaller and smaller, and this is also a part of our connection system that needs to focus on development.
Reporter: In the next one to two years, what connector do you think will be more popular in the Chinese market?
Jiang Yiyi: The factors that affect the Chinese market in the near term are mainly price and cost. Earlier we showed the connectors on some devices. The functional modules of the device itself are made of aluminum shell or other metal shell, which is heavy and expensive. A customer asked us to design the plastic shell and replace the aluminum shell. We sell the plastic shell and connector as a whole, the weight is reduced, and the price is cheaper. In addition, design and injection molding are also big challenges.
In the Chinese market, electric cars and hybrid cars have received special attention. Delphi began developing electrical and hybrid technologies 20 years ago. In recent years, consumers have also put forward higher requirements for the functions of automobiles. Only with smaller and smaller connectors and more and more signals are transmitted, can more functions be added in a limited vehicle space. Therefore, Delphi has been developing integrated, intelligent and environmentally-friendly automobiles worldwide. Connector product.
Reporter: Delphi Shanghai Connector Factory is the world's largest connector factory. Please talk about its export situation.
Jiang Yiyi: The goal of the Delphi connection system is "China's technology, global sharing." Our customers may be in the United States and it is very convenient for the Delphi team in the United States to communicate with customers. We have our own design team in Europe and South America. After the product is designed, it will be produced in China.
The connector system mold factory is the world's largest mold development and manufacturing base for Delphi connector systems. The mold products it developed not only fulfilled internal supply requirements, but also exported nearly 90% of its products. In general, connectors require the development of different molds to produce. Our R&D capabilities in the Asia Pacific region are very strong, especially in the area of ​​new energy vehicles. In traditional concepts, there may be more manufacturing parts in China and more design parts in foreign countries. In the past two years, we have slowly reversed this trend and we are also very proud of what we have achieved.
Reporter: What measures has Delphi taken to reduce costs?
Jiang Yiyi: Delphi has taken the cost reduction factor into consideration when it comes to product design. For example, when designing connecting equipment abroad, we used a lot of nylon material because nylon material has better fluidity and performance. However, in China, nylon material is very expensive, leading to the cost advantage disappearing if the same product enters China. Therefore, when designing, we will pre-select another material that is relatively cheap and consistent in performance.
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