Ceiling fan system with brushless motor

摘要

A fan system includes a motor, a rotatable hub, and a plurality of fan blades. The motor is coupled with the hub by a hollow drive shaft, such that the drive system of the fan system is gearless. The motor is controlled by a PFC-based control module, which is in communication with sensors that are configured to sense parameters associated with operation of the fan system. The control module is configured to react in certain ways to certain conditions detected by the sensors, such that the fan system uses feedback-based control algorithms. A remote control panel is in communication with the control module. The remote control panel is operable to display fault conditions detected by the sensors. Blade retainers prevent fan blades from falling when a fan blade breaks free from the hub. Pins prevent the hub from falling when the hub breaks free from the rotor.

主权项

1. A fan system, wherein the fan system comprises: (a) a hub, wherein the hub is configured to rotate about an axis, wherein the hub has a plurality of outwardly extending blade mounting members; (b) a plurality of fan blades mounted to the blade mounting members of the hub; (c) a drive system in communication with the hub, wherein the drive system is operable to rotate the hub; and (d) a plurality of fan blade retainers, wherein each of the fan blade retainers is secured to corresponding first and second blade mounting members of the hub, wherein each of the fan blade retainers is further secured to corresponding first and second fan blades associated with the corresponding first and second blade mounting members, and further includes an elongated portion extending radially along at least one of the first and second fan blades.