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Lowered Fin Heat Sinks for Automotive Electronic Applications
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English
Abstract
The Electronic Automatic Temperature Control (EATC) system provides the customer with a continuously variable blower motor operation. The high current is controlled by a power transistor. This device, which is capable of dissipating over 100 watts, requires a heat sink capable of thermally conducting the heat source to atmosphere (figure 1).
Louvered fin heat exchangers have already been optimized for use in radiators and condensors. The same technology, using vacuum brazing techniques, was applied to develop a heat sink for electrical components. To do so, power transistor operating and cycling temperatures, A/C system airflow and airflow velocity had to be considered. An operating system was designed where all of the design criteria were met.
Authors
Citation
Dage, G., "Lowered Fin Heat Sinks for Automotive Electronic Applications," SAE Technical Paper 880449, 1988, https://doi.org/10.4271/880449.Also In
References
- Electronic Circuits: Discrete and Integrated Schilling and Belove 1968
- IEEE Transactions of Reliability Vol R-29 No. 3 August 1980
- Motorola Power Data Book 3rd edition 1982
- RCA Application Notes, AN6163 1973