NZ775799B2 - Combined fan and motor - Google Patents
Combined fan and motor Download PDFInfo
- Publication number
- NZ775799B2 NZ775799B2 NZ775799A NZ77579918A NZ775799B2 NZ 775799 B2 NZ775799 B2 NZ 775799B2 NZ 775799 A NZ775799 A NZ 775799A NZ 77579918 A NZ77579918 A NZ 77579918A NZ 775799 B2 NZ775799 B2 NZ 775799B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- housing
- magnet array
- lift fan
- coupled
- magnet
- Prior art date
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/02—Hub construction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/16—Blades
- B64C11/20—Constructional features
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/16—Blades
- B64C11/20—Constructional features
- B64C11/28—Collapsible or foldable blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/08—Helicopters with two or more rotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/12—Rotor drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/22—Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft
- B64C27/28—Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft with forward-propulsion propellers pivotable to act as lifting rotors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C29/00—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft
- B64C29/0008—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded
- B64C29/0016—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers
- B64C29/0025—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers the propellers being fixed relative to the fuselage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
- B64D27/02—Aircraft characterised by the type or position of power plants
- B64D27/24—Aircraft characterised by the type or position of power plants using steam or spring force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D33/00—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for
- B64D33/08—Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of power plant cooling systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D35/00—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions
- B64D35/02—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions specially adapted for specific power plants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D35/00—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions
- B64D35/02—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions specially adapted for specific power plants
- B64D35/021—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions specially adapted for specific power plants for electric power plants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D35/00—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions
- B64D35/02—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions specially adapted for specific power plants
- B64D35/021—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions specially adapted for specific power plants for electric power plants
- B64D35/026—Transmitting power from power plants to propellers or rotors; Arrangements of transmissions specially adapted for specific power plants for electric power plants the electric power plant being integral with the propeller or rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Abstract
lift fan, comprising: a first housing which includes a first and a second unshielded blade, each blade extending radially outwards; a second housing connected to the first housing at a plurality of points to stabilize the lift fan during operation; a motor including a magnet array and a stator configured to output a magnetic field, wherein: the magnet array is coupled to the first housing or the second housing; and the first housing or the second housing which is coupled to the magnet array rotates in response to the magnet array responding to the magnetic field output by the stator; and a magnetic lock, wherein the magnetic lock includes a plurality of stationary magnets (806a) coupled to respective tabs (808a) and a plurality of rotating magnets (804a) coupled to respective arms (802a), wherein the magnetic lock is adapted to magnetically engage when the arm is in a first position placing one of the rotating magnets parallel to one of the stationary magnets; wherein the lift fan is able to stop in a locked position with the first housing oriented such that the first unshielded blade is pointing forwards and the second unshielded blade is pointing backwards. The invention provides a magnetic lock that latches as the fan is slowed due to gravity pulling down on the arms and unlatches as the fan spins faster due to centrifugal force causing the arms to lift up.
Claims (15)
1. A lift fan, comprising: a first housing which includes a first and a second unshielded blade, each blade extending radially outwards; 5 a second housing connected to the first housing at a plurality of points to stabilize the lift fan during operation; a motor including a magnet array and a stator configured to output a magnetic field, wherein: the magnet array is coupled to the first housing or the second housing; and 10 the first housing or the second housing which is coupled to the magnet array rotates in response to the magnet array responding magnetically to the magnetic field output by the stator; and a magnetic lock, wherein the magnetic lock includes a plurality of stationary magnets and a plurality of rotating magnets coupled to an arm, wherein the magnetic lock is adapted 15 to magnetically engage when the arm is in a first position placing one of the rotating magnets parallel to one of the stationary magnets; wherein the lift fan is able to stop in a locked position with the first housing oriented such that the first unshielded blade is pointing forwards and the second unshielded blade is pointing backwards. 20
2. The lift fan of claim 1, wherein the magnetic lock is adapted to magnetically engage when the arm is in the first position in response to an amount of gravity pulling down on the arm exceeds an amount of centrifugal force caused by spinning of the lift fan pushing the arm upwards or outwards toward a second position.
3. The lift fan of any one of claims 1 or 2, wherein: 25 the magnet array is an upper magnet array which is coupled to the upper housing; and the lift fan further includes a lower magnet array which is coupled to the lower housing and the lower housing rotates in response to the lower magnet array responding magnetically to the magnetic field output by the stator.
4. The lift fan of any one of the preceding claims, wherein the magnet array includes an 30 embedded magnet array.
5. The lift fan of any one of claims 1 to 4, wherein the magnet array includes a surface- mounted magnet array.
6. The lift fan of any one of claims 1 to 4, wherein: the magnet array includes a surface-mounted magnet array; and 5 the lift fan further includes a magnet carrier which is used to couple the surface- mounted magnet array to at least one of the first housing and the second housing.
7. The lift fan of any one of claims 1 to 4, wherein: the magnet array includes a surface-mounted magnet array; the lift fan further includes a magnet carrier which is used to couple the surface- 10 mounted magnet array to at least one of the first housing and the second housing; and the magnet carrier includes an impeller.
8. The lift fan of any one of the preceding claims, wherein the magnet array is coated with a substance which reduces a friction of the magnet array.
9. The lift fan of any one of claims 1 to 7, wherein: 15 the magnet array is coated with a substance which reduces a friction of the magnet array; and the substance includes polytetrafluoroethylene (PTFE).
10. The lift fan of any one of the preceding claims, wherein the first housing is an upper housing and the second housing is a lower housing. 20
11. A method, comprising: outputting a magnetic field using a stator, wherein the stator is included in a lift fan which further includes: a first housing which includes a first and a second unshielded blade, each blade extending radially outwards; 25 a second housing connected to the first housing at a plurality of points to stabilize the lift fan during operation; and a magnet array, wherein: the magnet array is coupled to the first housing or the second housing; 30 the first housing or the second housing which is coupled to the magnet array rotates in response to the magnet array responding magnetically to a magnetic field output by a stator; and a magnetic lock, wherein the magnetic lock includes a plurality of stationary magnets and a plurality of rotating magnets coupled to an arm and the magnetic lock is adapted to magnetically engage when the arm is in a first position placing one of the rotating magnets parallel to one of the stationary magnets; and 5 rotating the first housing or the second housing which is coupled to the magnet array in response to the magnet array responding magnetically to the magnetic field output by the stator; wherein the lift fan is able to stop in a locked position with the first housing oriented such that the first unshielded blade is pointing forwards and the second unshielded blade is 10 pointing backwards.
12. The method of claim 11, wherein: the magnet array is an upper magnet array which is coupled to the upper housing; and the lift fan further includes a lower magnet array which is coupled to the lower housing and the lower housing rotates in response to the lower magnet array responding 15 magnetically to the magnetic field output by the stator.
13. The method of any one of claims 11 or 12, wherein: the magnet array includes a surface-mounted magnet array; the lift fan further includes a magnet carrier which is used to couple the surface- mounted magnet array to either the first housing or the second housing; and 20 the magnet carrier includes an impeller.
14. The method of any one of claims 11 to 13, wherein the first housing is an upper housing and the second housing is a lower housing.
15. The lift fan of claim 1, as described in the description above and/or as illustrated in 25 the accompanying
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/599,986 US10259563B2 (en) | 2017-05-19 | 2017-05-19 | Combined fan and motor |
| NZ759374A NZ759374B2 (en) | 2017-05-19 | 2018-03-26 | Combined fan and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NZ775799A NZ775799A (en) | 2024-09-27 |
| NZ775799B2 true NZ775799B2 (en) | 2025-01-07 |
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