JAXA | Development of World’s Smallest High-Efficiency Motor – Installed in Space Exploration Equipment
February 7, 2019
Japan Aerospace Exploration Agency
ShinMaywa Industry
Oita University
Nippon Bunri University
Ibaraki University
Shizuoka University
JAXA Space Exploration Innovation Hub:
We have developed a compact, highly efficient, world class motor.
Features of the compact high efficiency motor are as follows.
World’s best class motor:
(1) Continuous operation is possible with mass of 25 g, output of 50 W,
(2) Efficiency of over 80% over a wide range from low speed to high speed, low output to high power,
(3) Efficiency of over 85% is achieved over a wide range at high speed rotation of 15,000 rpm or more per minute,
(4) Featuring extremely low fever
Space use
On the moon surface in the vacuum state and on the surface of the atmosphere with a thin atmosphere, we can hardly expect heat dissipation due to convection.
Motors with high efficiency and low heat generation are extremely important as motors to be installed in space exploration equipment.
Project on the ground
Drones whose motor masses are directly linked to cruising time,
Robot joints,
Driving precision instruments that want to avoid temperature changes
Applications such as are considered.