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Designing a Better Street Luminaire Heatsink with Thermal Simulation

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EBV Elektronik GmbH & Co. KG
Würth Elektronik eiSos GmbH & Co. KG
RECOM Power GmbH
Mentor Graphics Corporation

Conclusion

Figure 4: The final award-winning LED industrial luminaire with the self-cleaning heatsink.
Figure 4: The final award-winning LED industrial luminaire with the self-cleaning heatsink.
(Image source: BUCK R&D)
The BUCK designers used Mentor Graphics FloEFD thermal simulation software embedded in CATIA to design a new model of a heatsink, with vertical fins, a higher airflow, and a self-cleaning effect that prevents dirt deposition. By using the thermal simulation software, they significantly shortened the development time and were provided with details they couldn’t otherwise see to analyze their prototype. They also were able to obtain the experience that contributes to faster and better solutions of future problems. The new heatsink design enabled the company to reduce the cost of manufacturing and maintenance as well as extend the product life. The company’s final LED device, Tangram (Figure 4), also won a “good design” award from the Chicago Athenaeum Museum of Architecture and Design.

Acknowledgment

The authors wish to acknowledge the support received in writing this article from Mircea Slanina, the responsible account manager working with TRIAS microelectronics SRL, the local Mentor Graphics distributor.

About the Authors

Industrial Designer Djordje Zivanovic is a member of the BUCK R&D team responsible for designing the shape and electromechanics of the company’s architectural and streetlight luminaires. He is also responsible for the thermal management of solid-state lighting appliances.

Richard Ozaki is a Senior Application Engineer for European customers in the Mechanical Analysis Division of Mentor Graphics Corporation.

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