US 11,598,343 B2Granted

Ceiling fan system with brushless motor

AssigneeDelta T, LLC

InventorsRichard A. Oleson, J. Carey Smith, Mark A. Toy, Elios Klemo

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Abstract

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.

Claims29

Dependent claims

A fan system, wherein the fan system comprises:

(a) a hub, wherein the hub is configured to rotate;
(b) a plurality of fan blades mounted to the hub;
(c) a motor, wherein the motor is in communication with the hub, wherein the motor is operable to rotate the hub;
and
(d) a control panel in communication with the motor, wherein the control panel comprises a display screen and a plurality of user input features, wherein the display screen is operable to display information relating to operation of the fan system, wherein the user input features are operable to control operation of the fan system, wherein the user input features comprise a first user input feature operable to cycle through a plurality of screens rendered on the display screen, wherein each screen of the plurality of screens relates to a different aspect of operation of the fan system;
wherein the control panel is configured to communicate with the motor via wire or wirelessly;
wherein the display screen is configured to display information indicating whether the control panel is in communication with the motor via wire or wirelessly.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/284,127Filed 3 Oct 2016 · division
Priority: 10 Oct 2007
Published: US 2017/0089346 A130 Mar 2017
Granted: 7 Mar 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

F04D 25/088
The working fluid being air, e.g. for ventilation: ceiling fans
F04D 25/068
The pump being electrically driven: mechanical details of the pump control unit
F04D 27/004
Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids: by varying driving speed
F04D 27/008
Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids: stop safety or alarm devices,…

Family

Application60/978,860Us provisional application · filed 10 Oct 2007
Application61/034,254Us provisional application · filed 6 Mar 2008
Application12/249,086Parent of this continuation-in-part · filed 10 Oct 2008
Application12/399,428Parent of this division · filed 6 Mar 2009
US 8,147,182 B2Parent of this continuation-in-part · filed 3 Apr 2012
Application13/942,164Parent of this division · filed 15 Jul 2013
US 8,672,649 B2Parent of this division · filed 18 Mar 2014
US 2017/0089346 A1Pre-grant publication · published 30 Mar 2017
US 9,458,859 B2Parent of this division
Application12/399,428Parent of this continuation-in-part
US 2009/0097975 A1Published application
US 2009/0208333 A1Published application
US 2014/0023507 A1Published application
US 11,598,343 B2This patent

From the US filing history. Foreign family members aren’t listed.