Today, SoftBank Corp. and Nidec Corporation collaboratively developed an axial flux-type motor for High Altitude Platform Stations (HAPS) that is lightweight, highly efficient, and very reliable. Additionally, this newly created motor satisfies the requirements for Sunglider, the unmanned aircraft system (UAS) created by HAPSMobile Inc. (“HAPSMobile”), a SoftBank subsidiary.
The jointly designed motor features light weight, high efficiency, and high performance, allowing UAS for HAPS to sustain prolonged flight lengths entirely on solar power, as well as high thermal dissipation, keeping them operating steadily in the hypobaric condition of the stratosphere. Additionally, the HAPS motor has a torque density of 12.5N/kg despite its light weight thanks to the use of the magnetic circuit design technology, which Nidec has long nurtured in its small precision motor development, as well as, among other things, an optimized magnet arrangement to maximize magnetic field strength, a unique design that encapsulates magnets in a rotor to improve reliability, and a unique, patent-applied motor assembly method for better performance.
Moving forward, SoftBank and HAPSMobile will continue to develop a variety of fundamental technologies, such as those for the most recent motor, to commercialize HAPS, and to promote HAPS businesses with the goal of bridging the digital divide and creating a society where everyone can connect to reliable networks whenever and wherever they want.
Nidec, on the other hand, continues to be dedicated to developing products based on its technologies to develop light, thin, short, small, high-efficiency, and highly controllable products and to offering, at an overwhelming speed, revolutionary solutions that improve people’s lives all over the world. Nidec is the world’s leading comprehensive motor manufacturer.