Project Photos

Battel Engineering, Inc.
10020 North 58th Street
Scottsdale, AZ  85253
office: (480) 991-9747
fax: (480) 991-9748
email: bateng@earthlink.net


17. View of Rear Wall Thermal Module for Orbion Aurora Thruster PCU

Following from the previous pictures and discussion of the Aurora PCU/PPU, the major challenges for the design were fitting the electronics into a limited volume while also managing the substantial thermal load when operating at full power. The assembly shown is the rear thermal wall where the majority of the heat generated in the APU is transferred to the mounting interface. The picture on the left is the inside view with the main power board on the left and the heater drive board on the right. The heater transformer is mounted in the middle and all three modules are directly thermally bonded to the wall. At maximum power, approximately 30 watts is conducted to the wall and then to the thermal sink. The delta T for this implementation is less that 15C from the internal part junctions to the thermal sink.



Image Steve Battel, Battel Engineering, Inc. All rights reserved.