A generator module for a vehicle includes a housing with a first conical surface, a rotor assembly with a second conical surface, aligned with the first conical surface, and a spring arranged to push the second conical surface into contact with the first conical surface. In an example embodiment, the first conical surface or the second conical surface includes a plastic surface or a friction paper surface. In an example embodiment, the rotor assembly is axially displaceable within the housing to compress the spring and move the second conical surface away from the first conical surface.

A limited rotation motor system is disclosed that includes a stator within a housing, a rotor rotatably coupled within the stator by a first bearing system at a proximal end and a second bearing system at a distal end, each of said first bearing system and said second bearing system being coupled at an inner side thereof to the rotor and being coupled at an outer side thereof to the housing, a compression system applying a compressive force between the first bearing system and the second bearing system in an axial direction, and a damping system adjacent any of the first bearing system and the second bearing system, said damping system providing that divergent forces resulting from the compressive force that diverge from the axial direction are absorbed by the damping system

A limited rotation motor system is disclosed that includes a stator within a housing, a rotor rotatably coupled within the stator by a first bearing system at a proximal end and a second bearing system at a distal end, each of said first bearing system and said second bearing system being coupled at an inner side thereof to the rotor and being coupled at an outer side thereof to the housing, a compression system applying a compressive force between the first bearing system and the second bearing system in an axial direction, and a damping system adjacent any of the first bearing system and the second bearing system, said damping system providing that divergent forces resulting from the compressive force that diverge from the axial direction are absorbed by the damping system

The present disclosure relates to a hub apparatus and associated charging systems. In some embodiments, the hub apparatus includes (1) a housing assembly defining an internal space; (2) a shaft positioned to extend through the housing assembly; (3) a stator assembly fixedly coupled to the shaft; (4) a side cover fixedly coupled to the shaft and rotatably coupled to the housing assembly, the side cover having a base portion and a mating portion extending from the base portion; and (5) a pair of first connectors positioned through the mating portion. Each of the first connectors comprising a terminal end and a contact portion. The terminal end is electrically coupled to a battery assembly via a wire bundle fixedly coupled to the side cover. The contact portion is configured to electrically couple to an external power source so as to charge the battery assembly through a wired connection.

An automatically variable torque and speed motor for electrical tricycles is disclosed, and the motor rotor assembly of which comprises fixed rotors and rotary rotors arranged adjacently in turn along the axis of the motor shaft. Staggered pole pieces on the surfaces of the fixed rotor and the rotary rotor form a staggered angle along the circumference. The support of the rotary rotor comprises a revolving support ring and two fixed side discs which are respectively arranged on the two sides of the revolving support ring. An elastic compression part is arranged in the inner cavity of the revolving support ring along the revolving direction. The elastic compression part has one end arranged at the inner circle of the revolving support ring and the other end arranged on the side wall, facing the inner cavity of the revolving support ring, of one of the fixed side discs. The present invention can adjust the speed and torque according to the load situations of the whole electrical tricycle. It can run in a highly efficient range in the case of low load, and automatically increases the output torque in the case of high load. The power output of the motor of the electrical tricycle is more reasonable, and the reliability of key parts and components of the electrical tricycles is enhanced, and the service life of the whole electrical tricycles is prolonged; and the whole electrical tricycle becomes more energy-saving and environmentally-friendly.

An automatically variable torque and speed motor for electrical tricycles is disclosed, and the motor rotor assembly of which comprises fixed rotors and rotary rotors arranged adjacently in turn along the axis of the motor shaft. Staggered pole pieces on the surfaces of the fixed rotor and the rotary rotor form a staggered angle along the circumference. The support of the rotary rotor comprises a revolving support ring and two fixed side discs which are respectively arranged on the two sides of the revolving support ring. An elastic compression part is arranged in the inner cavity of the revolving support ring along the revolving direction. The elastic compression part has one end arranged at the inner circle of the revolving support ring and the other end arranged on the side wall, facing the inner cavity of the revolving support ring, of one of the fixed side discs. The present invention can adjust the speed and torque according to the load situations of the whole electrical tricycle. It can run in a highly efficient range in the case of low load, and automatically increases the output torque in the case of high load. The power output of the motor of the electrical tricycle is more reasonable, and the reliability of key parts and components of the electrical tricycles is enhanced, and the service life of the whole electrical tricycles is prolonged; and the whole electrical tricycle becomes more energy-saving and environmentally-friendly.

The invention discloses a convenient human and animal power drive permanent magnet power generation and storage system, comprising a grip power drive power generation system; the grip power drive power generation system is a dumbbell-shaped grip power generation device, comprising a grip handle and power generation devices provided at both ends of the grip handle; the power generation device is composed of a permanent magnet generator, a tensioning wheel, a spring sheet, a winder ratchet device, and a battery; folding buckles are provided between the power generation devices at both ends and the grip handle so as to be folded inward. The invention solves the problem of continuous power guarantee of wearable intelligent device; in the invention, the grip-type slow gear is designed as a spring tensioning device similar to a mechanical watch; the stress generated during the grip tightens the spring.

The invention discloses a convenient human and animal power drive permanent magnet power generation and storage system, comprising a grip power drive power generation system; the grip power drive power generation system is a dumbbell-shaped grip power generation device, comprising a grip handle and power generation devices provided at both ends of the grip handle; the power generation device is composed of a permanent magnet generator, a tensioning wheel, a spring sheet, a winder ratchet device, and a battery; folding buckles are provided between the power generation devices at both ends and the grip handle so as to be folded inward. The invention solves the problem of continuous power guarantee of wearable intelligent device; in the invention, the grip-type slow gear is designed as a spring tensioning device similar to a mechanical watch; the stress generated during the grip tightens the spring.

An electric motor is disclosed, comprising a stator and a rotor mounted relative to the stator to form a gap between a surface of the stator and a surface of the rotor, the gap having a width. One of the stator and the rotor is mounted for movement relative to the other of the stator and the rotor about a central axis, and one of the stator and the rotor is mounted for movement relative to the other of the stator and the rotor along the central axis in response to thermal expansion of at least one of the stator and the rotor to maintain the width of the gap.

An electric motor is disclosed, comprising a stator and a rotor mounted relative to the stator to form a gap between a surface of the stator and a surface of the rotor, the gap having a width. One of the stator and the rotor is mounted for movement relative to the other of the stator and the rotor about a central axis, and one of the stator and the rotor is mounted for movement relative to the other of the stator and the rotor along the central axis in response to thermal expansion of at least one of the stator and the rotor to maintain the width of the gap.