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Small axial flux motor3/1/2024 That means the flux path is much shorter compared to that in radial flux machines, allowing the motor to be smaller for the same power, and have a higher power density and efficiency.īy contrast, in radial motors the flux moves through the first tooth and then via the stator back to the next tooth to the magnets. In a dual-rotor axial flux topology, the flux loop starts at the first magnet, passes axially through a stator tooth, and immediately arrives at the second magnet. It then passes through a second tooth to arrive at the second magnet on the rotor. Here, the magnetic flux loop starts at a permanent magnet on the rotor, passes through the first tooth on the stator, then flows radially along the stator. Most permanent magnet motors these days work with a radial flux topology. There are two principal topologies of axial flux motor – dual-rotor singlestator, sometimes called torus-style machines, and single-rotor dual-stator. Both these factors change the options for electric vehicle EV platform designers. The motors are shorter, typically by five to eight times, and can be two to five times lighter. That comes from the shorter, one-dimensional flux path, which is comparable to or better than the very best 2D radial flux motors on the market. The slim and lightweight structure results in machines with a higher power and torque density than a comparable radial machine, without the need to resort to very high speed operation.Īxial flux motors can also be highly efficient, with efficiencies typically over 96%. That makes axial flux motors much more compact the axial length of the machine is much shorter compared to radial machines, a factor that is often crucial for an application such as an inwheel motor. That can only go so far, however, so moving to a completely different machine type such as axial flux might be a good alternative.Īxial flux permanent magnet machines typically provide more torque for a given volume of motor than a radial motor, as the active magnetic surface area is the face of the motor’s rotor rather than the outside diameter. Traditional radial flux motors, which use permanent magnets or induction motors in an electric field, are undergoing extensive development aimed at optimising their weight and cost. For many years they have been used in stationary applications such as elevators and agricultural machinery, but over the past decade a number of developers have been working on improving the technology to make it suitable for applications such as electric motorcycles, airport pods, delivery trucks, electric cars and even aircraft. Simply submit basic motor info and let the PrintStator software design your own, purpose-built electric motor.Axial flux motors can change the way a powertrain is designed, moving it from the axle to inside the wheelĪxial flux motors have many EV design advantages over their radial flux counterparts, as Nick Flaherty explains.Ī new type of motor is gaining traction in the e-mobility sector – the axial flux type. Join us at to design your own custom motor with PrintStator. This allows you to design an electric motor around your system, instead of designing your system around a motor. ECM designs the software that designs the motors. These include robotics, e-mobility, consumer electronics, and UAVs. A motor design software that gives unlimited design flexibility, allowing its user to design a motor around their system rather than designing their system around a motor.ĮCM creates perfect fit PCB Stator motors for multiple applications. The software designs PCB Stator motors that are smaller, lighter, quieter, smoother, and more efficient than conventional electric motors. Electric motors with a printed circuit board stator are smaller, more efficient, 70% lighter and use up to 80% less raw materials. ECM’s software platform - PrintStator - enables engineers to rapidly design, model, and prototype optimized printed-circuit-board stator motors. And all these devices need motors.ĮCM PCB Stator Tech is a US based startup that sits at the forefront of electric motor innovation. As a result, millions of things we use in business and life are becoming electrified, too. PCB Stator Axial Flux Motors Ready for a Rapidly Electrified World
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