An electric machine includes a rotor configured to rotate about an axis of rotation, a stator having a plurality of teeth annularly arranged on a stator core about the axis of rotation, a plurality of electromagnetic coils, and a base plate. Each coil of the plurality of electromagnetic coils may be mounted on a separate tooth of the plurality of teeth, and the base plate may be located adjacent to the plurality of electromagnetic coils and the stator core. The base plate may be in thermal contact with the plurality of electromagnetic coils and the stator core such that as the plurality of electromagnetic coils and the stator core heat during operation, the base plate is configured to serve as a common heat sink for the plurality of electromagnetic coils and the stator core.

An electric machine includes a rotor configured to rotate about an axis of rotation, a stator having a stator core and a plurality of teeth annularly arranged on the stator core about the axis of rotation, a plurality of electromagnetic coils, and a base plate. Each coil of the plurality of electromagnetic coils may be mounted on a separate tooth of the plurality of teeth. The base plate may be located adjacent to the plurality of electromagnetic coils and the stator core. The base plate may have a first side and an opposing second side. The first side may be in thermal contact with the plurality of electromagnetic coils and the stator core. A liquid-coolant channel may be defined on the second side of the base plate such that as the coils and the stator core heats during operation, the base plate is configured to transfer the heat to a liquid coolant in the liquid-coolant channel to dissipate heat from the plurality of electromagnetic coils and the stator core.

Certain embodiments are directed to devices, methods, and/or systems that use electrical machines. For example, certain embodiments are directed to an electrical machine comprising: at least one stator at least one module, the at least one module comprising at least one electromagnetic coil and at least one switch, the at least one module being attached to the at least one stator; at least one rotor with a plurality of magnets attached to the at least one rotor, wherein the at least one module is in spaced relation to the plurality of the magnets; and the at least one rotor being in a rotational relationship with the at least one stator, wherein the quantity and configuration of the at least one module in the electrical machine is determined based in part on one or more operating parameters; wherein the at least one module is capable of being independently controlled; and wherein the at least one module is capable of being reconfigured based at least in part on one or more of the following: at least one operating parameter during operation, at least one performance parameter during operation, or combinations thereof. Other embodiments are also disclosed.

An electric brushless DC (BLDC) motor includes a stator and a rotor. The rotor includes a rotor shaft, a rotor core, a bearing, and a sense magnet ring. And end cap is radially oriented with respect to the rotor shaft and securely disposed adjacent the stator, the end cap having a first surface facing the stator, a second surface facing away from the stator, a bearing pocket centrally disposed to receive the at least one bearing of the rotor therein to support the rotor, and at least two retention features projecting from the first surface at a distance with respect to one another to form a lateral gap therebetween. A positional sensor board is radially received from a peripheral side of the end cap in contact with the first surface of the end cap and within the lateral gap between the retention features of the end cap.

The present disclosure discloses an integrated electrical motor, comprising at least two sets of corresponding stators and rotors, wherein the at least two sets of corresponding stators and rotors are mounted within the same housing, and are connected to the corresponding controllers, and the rotors are mounted on the same shaft. The total output torque of the electrical motor can be distributed to the shaft from different stator/rotor pairs, and when one or more of the sets of stators and rotors have malfunction, the remaining stators and rotors maintain running. The integrated electrical motor of the present disclosure has compact structure, small axial dimension, distributable torque, high safety margin and high reliability.

A linear motor system may include a plurality of track sections that may enable a mover to traverse a track formed by the plurality of track sections. The system may also include a plurality of connection modules, such that each connection module of the plurality of connection modules may physically couple two respective adjacent track sections of the plurality of track sections and communicatively couple the two respective adjacent track sections of the plurality of track section. Each connection module may also electrically couple the two respective adjacent track sections of the plurality of track section.

A radial flux electric machine includes a rotor configured to rotate about an axis of rotation and a stator fixedly positioned proximate the rotor. At least one of the rotor or the stator may include a plurality of teeth annularly arranged about the axis of rotation. Each tooth of the plurality of teeth may extend in a radial direction such that a plurality of cross-sectional areas of each tooth in a plurality of planes perpendicular to the radial direction may vary. And perimeters of the plurality of cross-sections may be substantially the same across the plurality of perpendicular planes.

A cooled outboard engine platform including an electric motor having an output shaft for outboard propulsion, and an invertor for driving the electric motor. The platform further includes a cooling system having an open or closed cooling circuit for cooling the electric motor and/or the invertor with a cooling liquid.

A radial flux electric machine includes a rotor configured to rotate about an axis of rotation and a stator. At least one of the rotor or the stator may include a plurality of teeth annularly arranged about the axis of rotation. The electric machine may also include a plurality of electromagnetic coils. Each coil of the plurality of electromagnetic coils may have a non-uniform trapezoidal cavity therethrough. Each cavity may be configured to contain therein one tooth of the plurality of teeth. Each tooth of the plurality of teeth may be formed of multiple pieces that, when assembled together correspond to a shape of the non-uniform trapezoidal cavity.

A radial flux electric machine includes a rotor configured to rotate about an axis of rotation and a stator. At least one of the rotor or the stator may include a plurality of teeth annularly arranged about the axis of rotation. The electric machine may also include a plurality of electromagnetic coils. Each coil of the plurality of electromagnetic coils may have a non-uniform trapezoidal cavity therethrough. Each cavity may be configured to contain therein one tooth of the plurality of teeth. Each tooth of the plurality of teeth may be formed of multiple pieces that, when assembled together correspond to a shape of the non-uniform trapezoidal cavity.