An electrical machine includes a first stator having a stator core and a plurality of windings, and a movable element that is movably mounted adjacent to the first stator to form a first air gap between the movable element and the windings of the first stator. The movable element is a slider or a rotor connected to a shaft. A second stator includes a stator core arranged opposite to the first stator on the other side of the movable element. The movable element is movably mounted adjacent to the second stator to form a second air gap between the movable element and the stator core of the second stator. The first stator, the second stator and the movable element are arranged to pass the magnetic flux passes from the first stator through the first air gap, through the movable element and through the second air gap to the second stator.

An electrical machine includes a first stator having a stator core and a plurality of windings, and a movable element that is movably mounted adjacent to the first stator to form a first air gap between the movable element and the windings of the first stator. The movable element is a slider or a rotor connected to a shaft. A second stator includes a stator core arranged opposite to the first stator on the other side of the movable element. The movable element is movably mounted adjacent to the second stator to form a second air gap between the movable element and the stator core of the second stator. The first stator, the second stator and the movable element are arranged to pass the magnetic flux passes from the first stator through the first air gap, through the movable element and through the second air gap to the second stator.

Conventional axial flux motors typically include multiple rotors and stators resulting in a larger and heavier motor. Additionally, conventional axial flux motors include a housing to protect the rotors and stators, but the housing is often difficult to seal from the environment leading to risks of contaminants (e.g., dirt, water) infiltrating the motor and causing failure over time. The present invention overcomes these limitations by disclosing an axial flux motor with a single rotor and two stators. The use of a single rotor reduces the size and weight of the motor. An inboard housing and an outboard housing mechanically support the two stators and are joined together to define an interior cavity. A ring seal is disposed between the two housings to ensure the interior cavity is sealed. Additionally, the two stators may actuate multiple degrees of freedom (DOF) including the rotation of a wheel and actuation of a suspension.

Conventional axial flux motors typically include multiple rotors and stators resulting in a larger and heavier motor. Additionally, conventional axial flux motors include a housing to protect the rotors and stators, but the housing is often difficult to seal from the environment leading to risks of contaminants (e.g., dirt, water) infiltrating the motor and causing failure over time. The present invention overcomes these limitations by disclosing an axial flux motor with a single rotor and two stators. The use of a single rotor reduces the size and weight of the motor. An inboard housing and an outboard housing mechanically support the two stators and are joined together to define an interior cavity. A ring seal is disposed between the two housings to ensure the interior cavity is sealed. Additionally, the two stators may actuate multiple degrees of freedom (DOF) including the rotation of a wheel and actuation of a suspension.

The invention relates to a linear motor for a sliding door, comprising a mover assembly, a stator assembly and a controller for controlling the mover assembly to move, the stator assembly is electrically connected with the controller, and comprises two or more stators; the controller is arranged between the two adjacent stators; and end parts of the stators on two sides of the controller are provided with Hall devices. The mover assembly can move on a left side and a right side of the controller, and the moving range is increased. Furthermore, the Hall devices are arranged at the end parts of the stators on the two sides of the controller, the moving range of the mover assembly to the left side and the right side can be further increased, so that the system can adapt to a wider door opening without changing the length of the stator assembly.

The invention relates to a linear motor for a sliding door, comprising a mover assembly, a stator assembly and a controller for controlling the mover assembly to move, the stator assembly is electrically connected with the controller, and comprises two or more stators; the controller is arranged between the two adjacent stators; and end parts of the stators on two sides of the controller are provided with Hall devices. The mover assembly can move on a left side and a right side of the controller, and the moving range is increased. Furthermore, the Hall devices are arranged at the end parts of the stators on the two sides of the controller, the moving range of the mover assembly to the left side and the right side can be further increased, so that the system can adapt to a wider door opening without changing the length of the stator assembly.

A motor includes a stator and a rotor, the rotor includes a frame coupled to a rotation shaft and a magnet fixed to the frame, with a direction from the stator toward the rotor as a first direction, the magnet includes a plurality of lower part main pole magnets having a magnetization direction in the first direction and pluralities of lower part second rightward sub-magnets and lower part second leftward sub-magnets having a magnetization direction in a direction different from the first direction, the lower part main pole magnet includes a lower part first upward main magnet placed at a negative side in the first direction and a lower part second upward main magnet fixed to the frame, when the magnet is seen along the first direction, the lower part first upward main magnet and the lower part second rightward sub-magnet and lower part second leftward sub-magnet partially overlap.

A motor includes a stator and a rotor, the rotor includes a frame coupled to a rotation shaft and a magnet fixed to the frame, with a direction from the stator toward the rotor as a first direction, the magnet includes a plurality of lower part main pole magnets having a magnetization direction in the first direction and pluralities of lower part second rightward sub-magnets and lower part second leftward sub-magnets having a magnetization direction in a direction different from the first direction, the lower part main pole magnet includes a lower part first upward main magnet placed at a negative side in the first direction and a lower part second upward main magnet fixed to the frame, when the magnet is seen along the first direction, the lower part first upward main magnet and the lower part second rightward sub-magnet and lower part second leftward sub-magnet partially overlap.

An electric device has a driveshaft with at least one stator cylinder positioned between opposing, curvilinear shaped cams mounted on the driveshaft, where the center axis of the stator cylinder is parallel with but spaced apart from the driveshaft axis. A magnet assembly is disposed in each end of the stator cylinder, with one magnet assembly engaging one cam and the other magnet assembly engaging the other cam. Each magnet assembly includes a cam follower that can move along a curvilinear shaped cam. A magnet slide arm attached to the cam reciprocates magnets carried on the magnet slide arm through electromagnetic windings disposed around the stator cylinder. An electrical input delivered to the windings can reciprocate the arm, driving the cams to rotate the driveshaft. Alternatively, rotation of the driveshaft can be used to reciprocate the arm to induce electric current in the windings.

An electric device has a driveshaft with at least one stator cylinder positioned between opposing, curvilinear shaped cams mounted on the driveshaft, where the center axis of the stator cylinder is parallel with but spaced apart from the driveshaft axis. A magnet assembly is disposed in each end of the stator cylinder, with one magnet assembly engaging one cam and the other magnet assembly engaging the other cam. Each magnet assembly includes a cam follower that can move along a curvilinear shaped cam. A magnet slide arm attached to the cam reciprocates magnets carried on the magnet slide arm through electromagnetic windings disposed around the stator cylinder. An electrical input delivered to the windings can reciprocate the arm, driving the cams to rotate the driveshaft. Alternatively, rotation of the driveshaft can be used to reciprocate the arm to induce electric current in the windings.