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Characteristically, they perform well at a broad range of rotational speeds, making them suitable for high-speed-low-torque and low-speed-high-torque applications. The design is scaleable from small motors for electric vehicles to large wind-turbine generators.
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There is zero overhang of loops on the windings making them fully active. According to Magnax, this shortens the flux path while the magnets are farther away from the axis, resulting in greater efficiency and leverage around the central axis. The key to the power density is the yokeless axial flux design with two rotors at each side of the machine. The magnets are sourced from standard supply resources. “Compared with traditional radial flux permanent magnet motors, we typically need up to 40% fewer permanent magnets for similar torque, he noted. They use Neodymium N45SH magnets in amounts which vary for each motor type, said Moreels. Its yokeless axial flux motors deliver scalability and extreme power densities for e-mobility, according to Daan Moreels, also a co-founder, who serves as business development officer. This will be the AXF275 which targets e-mobility applications.
#AXIAL FLUX MOTOR SERIES#
So far, it has concentrated on making prototypes for various OEMs and taking reservations for its first series production model which it is has been targeting to begin manufacturing in the second quarter of this year. Including cars, trucks, buses and motorcycles.įounded by Peter Leijnen who serves as CTO, the company now has about 9-10 employees. Now itįocuses on smaller high-speed motors, developing designs for EV applications On wind energy applications, designing a motor that becomes a generator. Radial flux direct drive machines for similar power. This axial-flux topology provides machines that are less wide and heavy as well as being more compact, yielding greater efficiency.Īccording to Maxmax, its motor is 50% to 75% lighter than Put two sets of magnets parallel to each other, perpendicular to the axis of rotation. The company is located in Kortrijk near Ghent.Īxial Flux “direct-drive machines”, as Maxnax refers to them, are based upon a fundamentally different approach to direct drive than is represented by traditional radial flux systems. While squarely targeting the EV automobile market, Maxnax is also designing its motors to be applicable for electric industrial machinery such as wind turbines, mining and agricultural vehicles, and motorbikes. As with axial flux motors generally, its motors are designed to provide new levels of power density resulting in much lower overall weight and size. One company that is receiving serious attention its innovative design work is Belgian startup Maxnax bvba. Another key player, YASA in the UK, is covered in a related article. This article looks at the developments and offerings of several companies involved in bringing new innovations to axial flux motors- Maxnax of Belgium, Ashwoods Electric Motors of England, Emrax of Slovenia, and AVID Technology in the UK. In the race for improved electric motors for e-mobility and wind power, axial flux motors are receiving a lot of attention for their innovative capabilities in delivering high-density power in a smaller, lighter package.
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