Cooling System Design for Portable Electronic Device
Broadcast Microwave Services (BMS)
Cooling Design, Acoustic Testing, Prototyping
Design & Testing, CAD, Parts Procurement
Flometrics provided the following services on this project:
Calculations to optimize the system for maximum heat transfer coefficient with minimum fan power and thickness
Designed heat sink and cross-flow fan to carry away waste heat from PCB
Specified, procured and selected long-life brushless motor and controller
Performed acoustical testing to minimize fan noise
Had prototype heat sink and fan fabricated and tested
Aided in CAD integration and documentation
Several configurations were conceptualized, including axial and centrifugal fans. The cross-flow fan was selected due to it low profile, quietness, power consumption and availability to place the inlet & outlet out of hand hold regions.
A heat sink and fan were developed further and prototypes were made.
Test & Validation:
Prototype heat sink and fan were integrated with a mock-up PCB. Power resistors were used to simulate the expected thermal loads and the housing was instrumented with thermocouples. The prototype components met the requirements keeping all the PCB components under their design temperatures.
Integration into Detail Design:
Working with BMS, the heat sink, fan and motor were integrated into the top-level CAD model and BOM.
With the help of Flometrics, BMS is proud to offer the Carry-Viewer III handheld microwave receiver. A great example of how Flometrics can provide the solutions to accelerate your product from conception to production, so that you get your ideas to market sooner and with confidence.