# US 8,770,949 B2 · Ceiling fan > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,770,949 B2 - Document ID: US8770949B2 - Status: Granted - Kind: B2 - Application number: 13/061,781 - Filed: 2008-09-04 - Published: 2011-07-07 - Granted: 2014-07-08 - Earliest claimed: 2008-09-04 - Assignees: Delta T, LLC - Applicants: Ernest John Noble - Inventors: Ernest John Noble - Web page: https://patentgrep.com/patent/US8770949B2 ## CPC - F04D 25/088: {Ceiling fans} - F04D 19/002: {Axial flow fans} - F04D 25/068: {Mechanical details of the pump control unit (pump control details F04D27/00)} - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) ## Abstract A ceiling fan comprising: a fan motor and blade assembly, a mounting tube for suspending the fan motor and blade assembly from a ceiling, and a power supply mounted within the mounting tube configured to power the fan motor. Also a ceiling fan comprising a moulded stator frame, a raised turret integrally moulded within the frame configured to enclose and mount a motor controller, and an external user changeable auxiliary module. Also ceiling fan comprising: a totally enclosed safety extra low voltage fan motor assembly configured to be suspended from an upper side, and a sealing arrangement within the assembly providing a substantial degree of ingress protection against dust and water incident from at least an under side. Also a method comprising providing a ceiling fan comprising moulded stator frame, and mounting an external user changeable auxiliary module to a raised turret integrally moulded within the frame. ## Claims ### Claim 1 A ceiling fan comprising a fan motor and blade assembly, a mounting tube for suspending the fan motor and blade assembly from a ceiling, and a switched mode power supply (SMPS) mounted and fully enclosed within the mounting tube configured to power the fan motor. ### Claim 2 (depends on 1) The ceiling fan in claim 1 wherein the SMPS is configured to output a safety extra low voltage to power the fan motor. ### Claim 3 (depends on 1) The ceiling fan in claim 1 wherein the SMPS is configured to output a voltage less than or equal to 60V to power the fan motor. ### Claim 4 (depends on 1) The ceiling fan in claim 1 wherein the SMPS has 2 levels of output isolation. ### Claim 5 (depends on 1) The ceiling fan in claim 1 wherein the fan motor is an electrically commutated (EC) motor. ### Claim 6 (depends on 5) The ceiling fan in claim 5 wherein the fan motor comprises a double rotor, axial flux toroidally wound (TORUS) motor. ### Claim 7 (depends on 5) The ceiling fan in claim 5 further comprising a motor controller configured to control the fan motor using back emf sensing. ### Claim 8 (depends on 1) The ceiling fan in claim 1 further comprising a sealing arrangement within the fan motor and blade assembly providing ingress protection against dust and water incident from at least an underside thereof. ### Claim 9 (depends on 8) The ceiling fan in claim 8 wherein the ingress protection is one of at least water jets incident from at least the underside of the fan motor and blade assembly. ### Claim 10 (depends on 1) The ceiling fan in claim 1 further comprising a mounting on the underside of the fan motor and blade assembly for mounting a changeable auxiliary module. ### Claim 11 (depends on 10) The ceiling fan in claim 10 wherein the mounting is provided integrally moulded with a moulded stator frame. ### Claim 12 (depends on 11) The ceiling fan in claim 11 wherein the mounting is configured to enclose and mount: a motor controller for the fan motor, and the changeable auxiliary module. ### Claim 13 (depends on 10) The ceiling fan in claim 10 wherein the changeable auxiliary module is a lighting module. ### Claim 14 (depends on 1) The ceiling fan in claim 1 further comprising a remote control configured to receive a desired speed of the fan motor input by a user. ### Claim 15 (depends on 14) The ceiling fan in claim 14, wherein the remote control is configured to receive a desired state of the lighting module input by a user. ### Claim 16 (depends on 1) The ceiling fan in claim 1, wherein the mounting tube is secured to an upper part of the fan motor and blade assembly. ### Claim 17 (depends on 1) The ceiling fan in claim 1, wherein the mounting tube is secured to a fan motor housing. ### Claim 18 (depends on 1) The ceiling fan in claim 1, wherein the fan motor and blade assembly comprises blades secured to an outer surface of the fan motor. ### Claim 19 (depends on 1) The ceiling fan in claim 1, wherein the mounting tube comprises an open lower end above the fan motor and blade assembly. ### Claim 20 A fan mounting from a ceiling, comprising: a fan motor having a fan motor housing and connected to a plurality of fan blades; a mounting tube extending between the fan motor housing of the fan and the ceiling for suspending the fan motor from the ceiling, and a switched mode power supply mounted and fully enclosed within the mounting tube configured to power the fan motor. ### Claim 21 (depends on 20) The fan of claim 20, wherein the tube includes a hanger for hanging the fan motor from the ceiling. ### Claim 22 (depends on 20) The fan of claim 20, further including a lead depending from the power supply for supplying power to the fan motor. ### Claim 23 (depends on 22) The fan of claim 22, further including a tube extending at least partially within the motor housing for receiving the lead. ### Claim 24 (depends on 20) The fan of claim 20, wherein the switched mode power supply is connected to at least one plug. ### Claim 25 (depends on 20) The fan of claim 20, wherein the mounting tube includes an open lower end above the fan motor. ### Claim 26 A fan mounting from a ceiling, comprising: a fan motor having a fan motor housing including an upper surface, said fan motor being adapted for rotating a plurality of blades; a mounting tube for suspending the fan motor from the ceiling, and a switched mode power supply for supplying power to the fan motor, said switched mode power supply fully enclosed by the mounting tube. ### Claim 27 (depends on 26) The fan of claim 26, wherein the switched mode power supply is connected to at least one plug. ### Claim 28 (depends on 26) The fan of claim 26, further including a lead depending from the power supply for supplying power to the fan motor.