A ceiling fan assembly including a stator assembly having a non-rotating motor shaft and stator slidably and non-rotationally coupled to the non-rotating motor shaft, a rotor assembly, a first bearing slidably mounted to the non-rotating motor shaft and rotatably coupling the rotor assembly to the stator assembly, and a first spacer located between the first bearing and the stator assembly to fix the sliding location of the first bearing relative to the stator along the non-rotating motor shaft.

A ceiling fan assembly an upper motor housing, a lower motor housing, and a magnet seat formed in a portion of the upper and lower housing configured to seat a rotor comprising one or more magnets and mount the rotor to the upper and lower motor housings.

Provided are a stack-type stator having coil patterns patterned on a multi-layer substrate, and a motor and a blower for an air purification system using the stator. A stack-type stator includes: a multi-layer substrate having first through holes; coil patterns formed on the respective substrates of the multi-layer substrate and spirally patterned to surround the first through holes and to form a plurality of turns; a stator yoke disposed at a lower portion of the multi-layer substrate and having second through holes at positions corresponding to the first through holes; and divided cores each having one side protruding above the coil patterns formed on the uppermost layer of the multi-layer substrate and the other side being coupled to one of the second through holes through one of the first through holes.

A brushless DC motor fan is provided. The brushless DC motor fan includes a rotor and a stator module. The rotor has a shaft disposed on an inner side of the stator module and rotating relative to the stator module. The stator module has a coreless coil and a lead frame, wherein the lead frame includes six pins electrically connected to the coreless coil.

A fan has an external rotor motor with a motor section and an electronics section. The motor section and the electronics section are arranged axially adjacent to each other along the axis of rotation. The fan, when operated as intended, generates, via the fan wheel, a pressure difference between its suction side, which is preferably associated with the rotor, and its pressure side, which is preferably associated with the motor electronics. A continuous cooling duct runs within the external rotor motor from a pressure-side inflow opening, at least along sections of the rotor, to a suction-side outflow opening. An exclusively passive cooling air flow through the cooling duct can be generated in operation by the pressure difference generated by the fan wheel.

A ceiling fan comprising a motor having a rotating blade hub and a downrod mount. The ceiling fan also has multiple blades mounted to the rotating blade hub. The downrod has an upper end configured to mount to a structure and a lower end with a mount motor. The ceiling fan also has multiple studs provided in one of the downrod mount or the motor mount and corresponding openings provided in the other of the downrod mount or the motor mount. The studs are received within the openings to aid in securing the downrod to the motor assembly.

A ceiling fan assembly including a non-rotating motor shaft with an upper and lower bearing stop, a stator mounted to the non-rotating motor shaft, a rotor surrounding the stator, a motor housing having an upper bearing seat spaced above the upper bearing stop and a lower bearing seat spaced below the lower bearing stop, an upper bearing seated within the upper bearing seat, a lower bearing seated within the lower bearing seat, and a downrod coupling provided on the non-rotating shaft. When the ceiling fan assembly is suspended from a structure with the downrod coupling, the weight of the rotor presses the upper bearing against the upper bearing stop such that the weight of the rotor is transferred through the upper bearing to the non-rotating shaft.

A ceiling fan assembly a motor assembly having a non-rotating, hollow, motor shaft, a stator winding carried by the motor shaft, a wiring harness passing through the hollow of the motor shaft and electrically coupled to the stator winding.

A motor includes a stationary portion, a rotating portion, and a bearing portion. The rotating portion includes a shaft that rotates about a central axis extending vertically. The stationary portion includes a bearing housing, a stator, and a circuit board. The circuit board is above the stator and includes an insertion hole that permits insertion of the bearing housing. The stator includes a stator core, an insulator, a coil, and a terminal pin. The terminal pin is connected to a conductive wire and connected to the circuit board via a solder portion covered with a coating layer. The insulator includes a base portion and a wall portion. The wall portion protrudes upward from the base portion, is radially outward of the bearing housing, and contacts a radially inner surface of the circuit board at the insertion hole.

The invention relates to an electric media gap machine (10) for a compressor and/or a turbine, in particular for a turbocharger of an internal combustion engine, comprising a shaft (5) which is rotatably mounted in a housing (6) and on which a rotor (11) is arranged in a rotationally fixed manner, a stator (12) which is fixed to the housing and which has at least one multi-phase drive coil (16) for generating a drive magnetic field and multiple stator teeth (15) that protrude radially inward, and a device (17) which is fixed to the stator for optimizing the flow of a medium flowing through the media gap machine. The device (17) has a cover cap (18) which covers at least the rotor (11) upstream thereof, wherein the cover cap (18) is adjoined by an inner sleeve (19) which surrounds the rotor (11) completely in the circumferential direction and at least partly in the axial direction. The device (17) has an outer sleeve (23) which is arranged coaxially to the inner sleeve (19) such that the only flow path for the medium between the inner sleeve (19) and the outer sleeve (23) is formed solely through the stator (12) of the media gap machine.