Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New auto lighting sockets and connectors from Empire meet tougher requirements, thanks to DuPont engineering polymers

12.01.2009
Aiming to grow its business in automotive lighting, Empire Electronics Inc. (Troy, Michigan) is meeting more stringent demands for high-temperature resistance and durability in automotive lighting parts with new T20 sockets and the 2.8 In-Line connector series made of two different DuPont engineering polymers. Empire assembles the components into wire harnesses for various car and truck lights that it supplies to automotive tier ones and OEMs.

The T20 sockets, moulded from DuPont™ Zytel® HTN PPA (polyphthalamide) withstand higher temperatures than the S8 sockets used in most North American cars. Empire moulds the new 2.8 In-Line connector series from hydrolysis-resistant DuPont™ Crastin® PBT thermoplastic polyester resin.


Photo: DuPont
Headlamp wire harness from Empire Electronics that uses the T20 lamp socket and connector moulded from DuPont engineering polymers, which meet rigorous performance requirements.

T20 sockets predominate in European and Japanese vehicles but are now gaining broader use in North America. Empire’s T20s deliver the same power output as S8 sockets but are more compact. Their reduced footprint and smaller socket hole opening give automotive lighting designers more styling freedom and a larger potential reflecting area, but they result in higher operating temperatures.

“Zytel® HTN PPA allows us to meet our customers’ stringent temperature requirements for T20s while giving us several pluses over alternatives such as modified polyphenylene oxide,” said Robert Gray, Empire’s director of program management. “Key advantages for the PPA material we selected are very low outgassing, good moulding productivity and the excellent technical support provided by DuPont.” The material’s low outgassing greatly reduces film formation on lighting lenses, which reduces light output over time.

The sockets in Zytel® HTN PPA consist of two moulded parts assembled by the cost-effective ultrasonic welding process. Each part can be colour-coded as an identification aid in wire harness assembly and installation.

DuPont™ Zytel® HTN high-performance polyamide resins are engineered for extremes for demanding environments. The portfolio includes both Zytel® HTN PPA grades for heat, chemical and moisture resistance and Zytel® HTN structural grades. Empire uses a toughened, glass-reinforced grade of Zytel® HTN PPA that can use water for mould temperature control. “We like water control because it avoids the added cost of oil-type control equipment and makes it easier to maintain a safe, clean moulding operation,” Gray said.

For its new 2.8 In-Line connector series, Empire selected a glass-reinforced grade of Crastin® with outstanding hydrolysis resistance. Gray explained the choice: “The Crastin® resin gives us a combination of hydrolysis resistance, dimensional stability, an excellent balance of strength and impact resistance, and high flow for easy moulding.” The connectors comply with demanding USCAR requirements for retention of terminal pullout resistance and other key functional characteristics after rigorous thermal cycling tests involving hot, cold, humid and dry conditions.

“DuPont gave us great service in our development of both sockets and connectors,” Gray said. DuPont specialists accelerated Empire’s development of marketable parts with expert input on material selection, design, tooling and ultrasonic welding. The DuPont Application Development Center in Troy, Michigan, conducted initial moulding trials.

Empire Electronics Inc. is the leading North American supplier of wire harnesses and components for exterior automotive lighting. Since 1981, Empire Electronics has developed cost-saving solutions for its customers. For more information send an e-mail to crupkey@empireelect.com or visit http://www.empireelectronics.com on the web.

DuPont is a science-based products and services company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a better, safer, healthier life for people everywhere. Operating in more than 70 countries, DuPont offers a wide range of innovative products and services for markets including agriculture and food; building and construction; communications; and transportation.

The DuPont Oval Logo, The miracles of science™, DuPont™, Zytel® and Crastin® are registered trademarks or trademarks of E. I. du Pont de Nemours and Company or its affiliates.

Horst Ulrich Reimer | Du Pont
Further information:
http://www.dupont.com

More articles from Automotive Engineering:

nachricht Self-driving cars for country roads
07.05.2018 | Massachusetts Institute of Technology, CSAIL

nachricht When your car knows how you feel
20.12.2017 | FZI Forschungszentrum Informatik am Karlsruher Institut für Technologie

All articles from Automotive Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

Im Focus: Entangled atoms shine in unison

A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.

The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

Designer cells: artificial enzyme can activate a gene switch

22.05.2018 | Life Sciences

PR of MCC: Carbon removal from atmosphere unavoidable for 1.5 degree target

22.05.2018 | Earth Sciences

Achema 2018: New camera system monitors distillation and helps save energy

22.05.2018 | Trade Fair News

VideoLinks
Science & Research
Overview of more VideoLinks >>>