Haredata Application - Robotic Horticultural Products
Ben Winstanley • December 13, 2019
Battery Charger meets extreme temperature requirements!
A major global manufacturer asked us to look at developing a range of battery chargers for their latest project, the next generation of robotic horticultural products. The products are built at the customers UK facility, but much of the engineering and specification work was in association with the European based product management team.
Application Specific Power Supplies
The application specific requirements were extreme by any standards:
The working temperature range specified was from -30°C to +40°C and we carried out exhaustive testing to build this requirement into the customer specific design. The Chargers also had to be IP rated as they would be subject to the extremes of weather throughout the European region from the Barents Sea to the Mediterranean. To meet this operational concern we developed a partial potting process for manufacturing to ensure compliance. The Chargers also had to be UV tolerant and suffer minimal degradation over an extended lifetime. Extensive testing to confirm compliance was carried out both in the FRIWO R&D area and at the customers own test facilities. Despite these high parameters, there were also very strict condensation limits imposed at most extreme operating conditions at the design stage.
Finally, despite the somewhat rugged nature of the application, FRIWO still offered a nominal 200K hour MTBF as they do across the whole range of PSUs and Chargers. The customer now takes FRIWO Chargers for the majority of their robotic product range after successful and collaborative engineering work across the range.
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