Ceiling fan assembly

Abstract

A ceiling fan assembly comprising: a motor assembly having a hollow non-rotating motor shaft; a stator winding carried by the non-rotating motor shaft; a wire bundle passing through the non-rotating motor shaft and electrically coupled to the stator winding; a hollow suspension rod mounted to the non-rotating motor shaft and through which the wire bundle passes through the hollow suspension rod and the non-rotating motor shaft; and a retaining rod passing through the hollow suspension rod and secured to at least one of the non-rotating motor shaft and the motor assembly, and wherein a lower end of the retaining rod has a cap abutting a lower portion of the non-rotating motor shaft.

Description

[0001] This application is a divisional application of Chinese Patent Invention Application No. 202110271672.6, filed on December 14, 2016, for the application "Ceiling Fan".

[0002] Citation of relevant applications

[0003] This application claims priority to U.S. Provisional Patent Application No. 62 / 267,033, filed December 14, 2015; U.S. Provisional Patent Application No. 62 / 281,860, filed January 22, 2016; U.S. Provisional Patent Application No. 62 / 281,866, filed January 22, 2016; and U.S. Provisional Patent Application No. 62 / 350,799, filed June 16, 2016, the entire contents of which are incorporated herein by reference. Technical Field

[0004] This application relates to a ceiling fan assembly. Background Technology

[0005] Ceiling fans are used to generate airflow in a space or area, typically for cooling or temperature regulation. They can be used in industrial, commercial, or agricultural environments to circulate air and maintain appropriate temperature control. This is usually achieved by using a high-capacity, low-speed fan. Summary of the Invention

[0006] In one aspect, this disclosure relates to a ceiling fan assembly comprising: a motor assembly having a hollow non-rotating motor shaft; a stator winding carried by the non-rotating motor shaft; a wire harness passing through the non-rotating motor shaft and electrically connected to the stator winding; a hollow suspension rod mounted to the non-rotating motor shaft, and the wire harness passing through the hollow suspension rod and the non-rotating motor shaft; and a retaining rod passing through the hollow suspension rod and secured to at least one of the non-rotating motor shaft and the motor assembly, wherein the lower end of the retaining rod has a top cover adjacent to the lower portion of the non-rotating motor shaft. Attached Figure Description

[0007] In the attached diagram:

[0008] Figure 1A This is a top perspective view of a ceiling fan having several embodiments of the present invention.

[0009] Figure 1B yes Figure 1A An enlarged top perspective view of the ceiling fan shows the motor housing, blade mounts, and suspension assembly with cable fittings.

[0010] Figure 1C yes Figure 1A An enlarged bottom perspective view of the ceiling fan, showing the motor housing and retaining system.

[0011] Figure 1D It shows Figure 1B An exploded view of the internal components of a ceiling fan.

[0012] Figure 2A yes Figures 1A to 1D Top perspective view of the suspension rod assembly of the ceiling fan.

[0013] Figure 2B It includes the screw clips. Figure 2A Exploded view of the suspension rod.

[0014] Figure 2C It uses press bolts and lock nuts for installation. Figure 2A An exploded view of the motor shaft of the suspension rod.

[0015] Figure 3A yes Figures 1A to 1D Top view of the fan blades of a ceiling fan.

[0016] Figure 3B yes Figure 3A A cross-sectional view of the blade.

[0017] Figure 3C It shows Figure 3A A close-up view of a two-part embodiment of the blade.

[0018] Figure 4A yes Figures 1A to 1D A perspective view of the blade support of a ceiling fan.

[0019] Figure 4B yes Figure 4A An exploded view of the blade support with the push-lock assembly removed.

[0020] Figure 4C yes Figure 4B The exploded view of the push-lock component.

[0021] Figure 5A This is a top perspective view of the upper part of the motor housing, with a close-up of the blade support.

[0022] Figure 5B This is an exploded view showing the upper part of the motor housing, the blade support, and the combination of blades.

[0023] Figure 6 yes Figures 1A to 1D An exploded view of a portion of the motor housing assembly.

[0024] Figure 7A This is a top perspective view of the alternative motor housing assembly.

[0025] Figure 7B yes Figure 7AAn exploded view of the motor housing assembly.

[0026] Figure 7C yes Figure 7A A top view of the motor housing assembly, from which the blade support is disassembled.

[0027] Figure 8A yes Figure 2C A perspective view of the motor shaft.

[0028] Figure 8B It includes bearings. Figure 8A A cross-sectional view of the motor shaft.

[0029] Figure 8C yes Figures 1A to 1D Cross-sectional view of the motor housing assembly.

[0030] Figure 9A yes Figures 1A to 1D A perspective view of the retainer system of a ceiling fan.

[0031] Figure 9B yes Figure 9A An exploded view of the retainer system.

[0032] Figure 10A yes Figures 1A to 1D Top perspective view of the wiring harness of a ceiling fan.

[0033] Figure 10B yes Figure 10A An exploded view of the wire harness, showing the connection with... Figure 2A The connection between the stator and the motor shaft.

[0034] Figure 11A It is set inside the motor shaft Figure 9A The retainer system and Figure 10A A cross-sectional view of the wire bundle.

[0035] Figure 11B It includes Figures 1A to 1D An exploded view of all components of the motor assembly of a ceiling fan.

[0036] Figure 12 This is a perspective view of an alternative ceiling fan based on the aspects described in this article.

[0037] Figure 13 yes Figure 12 An enlarged view of the motor housing of an alternative ceiling fan.

[0038] Figure 14 It is along Figure 13 The cross-section of the motor housing taken from XIV-XIV.

[0039] Figure 15 yes Figure 14 Exploded view of the motor housing.

[0040] Figure 16 It is used to install to Figure 13 A perspective view of the mounting support for the motor housing.

[0041] Figure 17 This is a perspective view of the push-lock assembly separated from its blade support.

[0042] Figure 18 yes Figure 17 A perspective view of the push-lock assembly, with the end cap shown in dashed lines. Detailed Implementation

[0043] The embodiments of the present invention relate to systems, methods and other apparatuses related to ceiling fans.

[0044] Figure 1A A top perspective view of a ceiling fan 10 is shown. The ceiling fan 10 includes a ceiling mounting structure 12 for mounting to a ceiling (not shown) or building, having a suspension assembly 14 extending therefrom. The suspension assembly 14 is coupled to a motor assembly 16. Multiple blade supports 18 connect blades 20 to the motor assembly 16. Although five blades 20 and five blade supports 18 are shown, any number of blades 20 and blade supports 18 can be contemplated. Optionally, multiple cables 22 can be used to mount the suspension assembly 14 to the ceiling independently of the ceiling mounting structure 12. As used herein, the ceiling or building can be any structure from which the ceiling fan can be suspended or mounted. For example, the ceiling can be the ceiling of a building, factory, or farm building.

[0045] Figure 1B This is a close-up view of the suspension assembly 14 and the motor assembly 16. The ceiling mounting structure 12 includes a mounting plate 13 having two upper plates 15 for securing the ceiling mounting structure 12 to the building using a bolt assembly. Support cables 302 and conduits 342 extend from within the suspension assembly 14 below the mounting plate 13 for connecting the ceiling fan 10 to the building and a power source, respectively. The conduits 342 terminate at an electrical connector 343. The suspension plate 50 mounts the suspension assembly 14 to the motor assembly 16. The suspension assembly 14 further includes a cable fitting 58 for attaching a cable 22 to the suspension assembly 14 using a set of screw clips 80. The motor housing 198 includes a plurality of mounting members 204 for attaching blades 20 to the motor assembly 16 using blade brackets 18. Figure 1CA portion of the retaining system 300 is shown, while the remainder is inside the motor assembly 16. The retaining system 300 includes a retaining plate 310 disposed along the bottom of the motor housing 198, providing redundant suspension for hanging the ceiling fan 10 from the ceiling or building. Additionally, the bottom of the mounting plate 13 includes two integral tabs 24 for mounting the plate to fasteners 19. Fasteners 19 attach the mounting plate 13 to the suspension assembly 14 at a pivot 36. Forming the tabs 24 in the mounting plate 13 during manufacturing, compared to welding them, reduces costs while improving the reliability of the tabs 24 during fan operation.

[0046] Figure 1D This is an exploded view showing an assembly of components including suspension rod assembly 14 and motor assembly 16. Suspension rod assembly 14 includes a hollow rod 30 having a pivot 36 for attaching suspension rod assembly 14 to ceiling mounting structure 12.

[0047] A cable assembly 58 is mounted around the hollow rod 30. A suspension plate 50 is mounted opposite to the swivel 36 to the suspension assembly 14. The suspension plate 50 is connected to a coupling 52 for connecting the suspension assembly 14 to the motor assembly 16. The motor assembly 16 includes a motor housing 198, which is divided into an upper housing portion 200 and a lower housing portion 230. A non-rotating motor shaft 90 is disposed within the motor housing 198 to support a stator 232, an upper bearing 272, and a lower bearing 274. A lock nut 92 can be used to secure the motor shaft 90 to the suspension assembly 14 at the coupling 52. A spring member 282 can be disposed between the lower bearing 274 and the lower motor housing portion 230. A rotor 234 is mounted to the upper and lower motor housing portions 200 and 230 such that the motor housing 198 can rotate about the non-rotating motor shaft 90. The retaining system 300 further includes a support cable 302 and a retaining rod 304 for suspending a retaining plate 310 from a building. The retaining plate 310 can be mounted to the non-rotating motor shaft 90 and positioned below the lower housing portion 230 to provide redundant support for both the non-rotating and rotating elements of the motor assembly 16. The wire harness 340 can extend through the motor shaft 90 and exit from the center of the motor shaft 90 to supply current to the stator 232.

[0048] Looking at it now Figure 2A The suspension assembly 14 includes a hollow rod 30, the hollow rod 30 having a configuration for via Figure 1AThe ceiling mounting structure 12 is mounted to the upper end 32 of the ceiling. The lower end 34 is positioned relative to the upper end 32, mounting the suspension assembly 14 to the motor assembly 16. The upper end 32 includes a pivot 36 mounted to the hollow rod 30. The pivot 36 may include two extensions 40 defining a connecting fork, each extension 40 having a mounting aperture 42. The mounting apertures 42 can be aligned to receive the insertion of fasteners (such as pins) for pivotally engaging the upper end 32 to the ceiling mounting structure 12.

[0049] The lower end 34 may include a suspension plate 50 and a coupling 52. The suspension plate 50 may be mounted to the hollow rod 30, for example, by welding, or may be integral with the hollow rod 30. The coupling 52 may be connected to the suspension plate 50 using multiple fasteners 54 (such as screws or bolts). The cable fitting 58 may be a disc 60 that can be fixed around the hollow rod 30 between the upper end 32 and the lower end 34, and may have one or more openings 62 for installation. Figure 1A The entanglement 22.

[0050] Looking at it now Figure 2B The exploded view shows the separate parts of the suspension assembly 14. The cable fitting 58 can be welded to the hollow rod 30, or it can be machined as part of the hollow rod 30. Alternatively, the cable fitting 58 may include an inner ring 70 and an outer ring 72, having an opening 62 disposed between the rings 70 and 72. A screw fastener 80 has a hook 82 that extends through the opening 62 through and connects to the outer ring 72. The screw fastener 80 can connect the suspension assembly 14 to the ceiling via the cable 22 to provide additional support for the ceiling fan 10 and reduce vibration or rotational movement of the ceiling fan 10 during operation.

[0051] The suspension bar 50 and coupling 52 may include a plurality of fastener openings 74 adapted to receive the insertion of fasteners 54 for connecting the suspension bar 50 and coupling 52. The fasteners 54 may be screwed into one or more of the suspension bar 50 and coupling 52, or auxiliary fasteners such as nuts may be used to secure the suspension bar 50 and coupling 52 together. The coupling 52 may take the form of a collar 76 having a central opening 78. Now look... Figure 2C The collar 76 can be screwed in to connect to the threaded upper end of the motor shaft 90, thereby mounting the suspension assembly 14 to the motor assembly 16. Furthermore, the collar 76 or coupling 52 can be indexed relative to the motor shaft 90, for example, by being keyed to receive the keyway 88 on the motor shaft 90.

[0052] Alternatively, such as Figure 2CAs can be seen, the threaded retaining ring 92 can be used to secure the coupling 52 to the motor shaft 90. In an alternative embodiment, by utilizing the threaded retaining ring 92, the collar 76 can slide on the motor shaft 90, thereby screwing the retaining ring 92 onto the threaded portion of the motor shaft 90 to secure the coupling 52 to the motor shaft 90. The diameter of the retaining ring 92 can be designed to fit within the upper opening 96 of the coupling 52. An upper collar 95, complementary to the retaining ring 92, can be used to secure the motor shaft 90 to a lock nut 92 as a threaded redundancy. Additionally, a spring ring 93 can be inserted between the lock nut 92 and the coupling 52 to provide a biasing force between them. The biasing force of the spring ring 93 secures the lock nut 92 to the motor shaft 90, preventing undesirable rotation of both, which could otherwise lead to loosening. In another alternative example, both coupling 52 and retainer 92 can be screwed in to connect to motor shaft 90, thereby providing additional support for mounting suspension assembly 14 to motor assembly 16.

[0053] As an alternative to the threaded fastener 54, the suspension plate 50 or coupling 52 may include a tapped stud 94 or a push-button, while the remaining suspension plate 50 or motor coupling 52 has an opening 74 suitable for receiving the tapped stud 94. Nuts or other fasteners may be screwed onto or fitted onto the tapped stud 94 to secure the suspension plate 50 and motor coupling 52 together.

[0054] It should be recognized that the suspension assembly 14 facilitates the suspension of the motor assembly 16 from the ceiling, allowing the use of a non-rotating suspension assembly 14 and a non-rotating motor shaft 90. The suspension plate 50, combined with the coupling 52, facilitates the connection of the suspension assembly 14 to the motor assembly 16. Additionally, the cable fitting 58 facilitates the connection of additional suspension elements to the suspension assembly 14, such as the cable 22, thereby reducing vibrations or movement associated with the operation of the ceiling fan 10. Furthermore, the cable provides additional redundant suspension in the event of a failure of the ceiling mounting structure 12.

[0055] It should also be recognized that the double-ended bolt 94 or the press bolt facilitates the alignment and installation of the suspension plate 50 and the coupling 52. In addition, the use of the lock nut 92 facilitates the sliding insertion of the motor shaft 90 into the coupling 52 and can provide redundant connection for the attached motor shaft 90.

[0056] Turn now Figure 3A The top view of blade 20 shows three mounting holes 100 on a first end 102 and a second end 104 opposite to the first end 102. The mounting holes 100 allow the blade to be mounted to the motor assembly 16. Blade 20 may further include a blade span 106, such as the distance between the farthest ends of the first end 102 and the second end 104. Blade 20 may have an airfoil cross-section 110, such as... Figure 3BAs shown, leading edge 112 and trailing edge 114 define a chord 116, as the straight-line distance between leading edge 112 and trailing edge 114. In one example, blade chord 116 can be approximately seven inches (in.), and can be between six and eight inches. Airfoil 110 can be asymmetrical and can have an internal chamber 117.

[0057] The blade 20 may further include a pressure side 118 and a suction side 120, such that the pressure side 118 faces the ground below the ceiling fan 10 and the suction side 120 faces the ceiling from which the ceiling fan 10 is mounted. The blade thickness 122 can be the maximum distance between the pressure side 118 and the suction side 120. Figure 3C As can be seen, the blade 20 can also be two parts, which is a combination of a leading edge component 130 and a trailing edge component 132 connected together.

[0058] The blade thickness 122 can be adjusted such that the thickness-to-chord ratio can be less than 0.14 and greater than 0.13. For example, the blade chord 116 can be 7.01 inches and the thickness 122 can be 0.97 inches, having a thickness-to-chord ratio of 13.8% or 0.138. The blade chord 116 and thickness 122 can be varied relative to each other to maintain a thickness-to-chord ratio of approximately 13.8%. Furthermore, the blade 20 can be adapted to rotate at a speed defined by revolutions per minute (rpm). The rotational speed of the blade 20 can depend on the blade span 106 or the total ceiling fan width. The total ceiling fan width can be the diameter defined by the circle defined by the outermost rotation of the blade 20. In one example, the fan 10 can have a total width of approximately 24 feet, a blade span 106 of approximately 12 feet, a chord 116 of 7.01 feet, and a thickness 122 of 0.97 feet. The exemplary fan 10 can be adapted to rotate at a specific speed to produce a specific volumetric flow rate or air velocity.

[0059] It should be understood that the dimensions of the blade span 106, blade chord 116, and blade thickness 122, rotating at a given speed, determine the maximum air velocity and volumetric flow rate generated by the fan. Alternatively, the air velocity generated by the fan 10 can be determined based on consumer preferences, which may be determined by the need for airflow driven by the fan. For example, a hotter or less ventilated environment will require a higher air velocity to maintain a suitable temperature, while a colder or open environment will require a lower air velocity to maintain the temperature. It can be appreciated that by improving temperature management, volumetric airflow, or airspeed while minimizing energy consumption, adjusting the span 106, chord 116, thickness 122, chord-to-thickness ratio, speed, or other aspects can maximize the efficiency of the fan 10.

[0060] It should be recognized that the blade 20 has a thickness-to-chord ratio of approximately 13.8% and includes an airfoil shape to maximize the efficiency of the blade 20. The blade span 106, chord 116, thickness 122, rotational speed, and tilt angle can be adjusted to maximize efficiency, airspeed, and airflow volume during operation of the ceiling fan 10.

[0061] Turn Figure 4A Focusing on the blade support 18, the blade support 18 includes a first end 150 and a second end 152 opposite to the first end 150. The first end 150 may have a first cross-section, such as a circular cross-section 140, and the second end 152 may have a second cross-section, such as an elliptical cross-section 142. The first and second cross-sections 140 and 142 may be different from each other, and it is also conceivable that they may be the same. Furthermore, the height of the first cross-section 140 may be greater than the height of the second cross-section 142. Cross-sections 140 and 142 may each define the cross-sectional area of ​​the first and second ends 150 and 152. Cross-sections 140 and 142 may have the same area but different shapes. Alternatively, the cross-sectional areas of these shapes may be different. The first and second ends 150 and 152 may be connected by a transition segment 154. The transition segment 154 may have a cross-section 144 that transitions from the first cross-section 140 to the second cross-section 142, such as transitioning from a circle to an ellipse.

[0062] The blade support 18 may include a single machined part or a combination of multiple parts, such as welding the first and second ends 150, 152 to the transition section 154. The second cross-section 142 may be formed from an initial shape by stamping. For example, the entire blade support 18 may be machined to have a circular cross-section. The second end 152 and a portion of the transition section 154 may be stamped or compressed to form the appropriate second cross-sections 142, 144.

[0063] The first end 150 may have a push-lock assembly 156 that closes the first end 150. The motor assembly 16 with a rotating blade hub may have a first receiver, which may include Figure 5A The blade hub. The second end 152 may have a mounting aperture 158 complementary to the mounting hole 100 of the blade 20, such that the second end 152 is received within the internal cavity 117 of the blade 20, which serves as a second receiver. Thus, the blade 20 can be connected to the motor assembly 16 via the blade support 18. The interconnections between the blade 20, the blade support 18, and the blade hub will be discussed below. Figure 5B Further details will be provided during this period.

[0064] The first end 150 includes an opening 160 for receiving a push-lock assembly 156. The push-lock assembly 156 may further include an index 157 having a biasing stop, such as a spring-loaded pin 162 extending radially from one side of the push-lock assembly 156. (Steering) Figure 4B The diagram shows a push-lock assembly 156 separated from the main body of the blade support 18. The push-lock assembly 156 is mounted to the first end 150 at an opening 160, for example by welding, and is mounted relative to the blade support 18 to orient the blade support 18 at an angle relative to the pin 162. For example, a second cross-section 142 at the second end 152 may define a major axis 164. The push-lock assembly 156 can be mounted to the first end 150 to orient the pin 162 at an angle five degrees away from the major axis 164. Thus, the blade 20 mounted to the second end 152 can be positioned at an angle five degrees offset from the pin 162, and the tilt of the blade 20 can be defined when the blade support 18 is mounted to the motor housing 198. The tilt is the angle of attack of the blade 20 entering the air to control the generation of the airflow swept by the blade 20.

[0065] Looking at it now Figure 4C An exploded view shows the components included in the push-lock assembly 156. The push-lock assembly 156 includes a body 170 having an interior 172. The interior 172 is defined by a top 174 and a bottom 176 of the body 170 and has two shelves 178 disposed on either side of the interior 172 between the top 174 and the bottom 176. Each shelf 178 includes a fastener aperture 180. The top 174 includes a circular extension 182 adapted to be received at an opening 160 at a first end 150 for mounting thereto. The interior body 184 is dimensioned to be received within the interior 172 of the body 170. A pin interior 186 is disposed within the interior body 184 for receiving the insertion of a pin 162. The pin 162 includes a pin extension 163. Insertion of the pin 162 into the pin interior 186 and insertion of the interior body 184 into the interior 172 position the pin 162 to extend outwardly through opposite ends of the body 170, as... Figure 4BAs shown. A plate 188 positioned behind the inner body 184 secures a spring 190 behind the pin 162 within the inner body 184. The spring 190 is positioned around the pin extension 163 and clamped between the pin 162 and the plate 188. The pin extension 163 has an arcuate surface shaped to abut against the plate 188. The arcuate surface of the pin extension 163 and the concave inner end 189 of the plate 188 provide slight movement of the pin 162 beyond linear motion. During the installation of the blade support 18, this facilitates the insertion of the pin 162 into the mounting member 204 on the motor housing 198. Additionally, the arcuate outer surface 191 of the plate 188 complements the body 170, forming the cylindrical outer surface of the push-lock assembly 156. Fastener 192, such as a screw, can be inserted into a second fastener hole 194 within plate 188 for mounting plate 188 at frame 178, securing spring 190 behind pin 162 within body 170, forming Figure 4B The complete push-lock assembly 156 is visible in the image. Spring 190 allows actuation of pin 162 for connecting the blade support 18 to the motor assembly 16 using the push-lock assembly 156.

[0066] It should be recognized that the blade holder 18 facilitates the mounting of the blade 20 to the motor assembly 16. The size and shape of the blade holder 18 minimize system weight while maximizing structural integrity, which improves overall efficiency. For example, the blade holder 18 can be thin-walled steel to achieve minimal weight and maximum integrity. The blade holder 18, including the push-lock assembly 156 with pin 162, determines the blade tilt angle. Thus, based on blade characteristics such as span, the push-lock assembly 156 can be manufactured to orient the blade 20 with an optimal tilt angle to maximize efficiency without requiring such determination by the installer or consumer.

[0067] Figure 5A The upper portion 200 of a rotatable motor housing 198 is shown, comprising a portion of the housing of the motor assembly 16. The upper portion 200 further includes a blade hub 202 having a central hub 203 integral with the rotatable motor housing 198. The upper portion 200 includes five mounting members 204 for receiving blade supports 18 to mount blades 20. Although five mounting members 204 are shown, any number of mounting members 204 is conceivable. The upper portion 200 further includes mounting for attaching to the lower portion (see...). Figure 6 It has multiple mounting holes 206, and has a central hole 208 for use in Figure 2B or Figure 2C The motor assembly 16 is mounted to the suspension assembly 14 at the coupling 52.

[0068] Figure 5AA close-up view of a mounting member 204 is also shown. Mounting member 204 includes a split sleeve 210 defining a sleeve interior 212. The split sleeve 210 has two sets of compression fittings 214 for tightening or loosening the split sleeve 210. The split sleeve 210 and the compression fittings 214 are integrally formed with a rotatable motor housing 198. The split sleeve 210 further includes a slit 216 extending along one side of the longitudinal length of mounting member 204. The slit 216 terminates at a locking hole 218 and is sized to receive... Figures 4A to 4C The pin 162 of the push-lock assembly 156 is slidably inserted. The pin lock hole 218 serves as a blade rotation stop to prevent the attached blade 20 from rotating about the longitudinal axis, which could otherwise change the blade's tilt during operation.

[0069] Turn Figure 5B To connect the blade 20 to the motor assembly 16 via the blade holder 18, a push-lock assembly 156 is mounted on the first end 150 of the blade holder 18, thereby orienting the pin 162 at an angle to determine the tilt of the blade 20. The mounting member 204 can be a first receiver for receiving the first end of the blade holder 18. The pin 162 slides into the slit 216 and is inside the compression fitting 214, thereby pressing the pin 162 into the push-lock assembly 156. The first end 150 slides into the sleeve interior 212 unit, and the pin 162 is received within the slit 216 by rotating the blade holder 18. After rotation, the blade holder 18 moves inward until the pin 162 is received in the pin lock orifice 218, and the spring 190 pushes the pin 162 outward, thereby locking the blade holder 18 onto the mounting member 204. Alternatively, the blade holder 18 can be fully inserted into the mounting member 204 and rotated until the pin 162 is received in the pin lock orifice 218. Fasteners (not shown), such as screws or bolts, are inserted into the compression fitting 214 of the mounting 204 to tighten the compression fitting 214 of the split sleeve 210, thereby securing the blade support 18 to the mounting 204 and preventing the pin 162 from slipping out of the pin lock hole 218.

[0070] After the blade support 18 is inserted into the motor housing 198, the rotation of the annular first cross-section 140 is fixed by the pin 162 mounted to the index portion 157, and the second end 152 of the blade support 18 is oriented at an angle relative to the horizontal plane, such as relative to the horizontal plane of the ceiling or the floor of a building where the fan 10 is mounted. Alternatively, the pin 162 may oriented the blade 20 relative to the blade hub 202.

[0071] The blade 20 can be a second receiver for receiving the second end 152 of the blade holder 18, with the second receiver located inside the blade 20. The blade 20 can be mounted to the blade holder 18 such that the blade 20 slides on the second end 152 and enters the internal cavity 117, aligning the mounting hole 100 with the mounting aperture 158. Fasteners can secure the blade 20 to the blade holder 18 using the mounting hole 100 and the mounting aperture 158. The angle setting of the second end 152, depending on the orientation of the pin 162 and the push-lock assembly 156, defines the tilt of the blade 20. For example, to deviate from... Figure 4B The major axis 164 of the ellipse shown is five degrees away from the positioning pin 162, which can orient the blade 20 at an angle of five degrees relative to the ceiling or the base of the building.

[0072] During operation, the torque generated by the motor assembly 16 limits the rotational speed of the fan 10. The combination of the fan 10's rotational speed and blade tilt angle determines the volumetric flow rate of the airflow caused by the fan 10. The volumetric flow rate can be the volume of air moved by the fan 10 during operation based on the motor torque and blade tilt angle. The blade span 106 can proportionally increase or decrease the volumetric flow rate, as longer blades 20 produce greater airflow and shorter blades 20 produce less. However, a greater motor torque is required to drive the longer blades 20 at the desired rotational speed compared to the shorter blades. To maximize flow rate while operating within the motor's torque-generating capability, the blade tilt angle can be predetermined during manufacturing based on the blade span 106 of the blades 20. For example, for a blade span 106 of approximately 12 feet or a total diameter of 24 feet, the pin 162 can be oriented to define a blade tilt angle of 8 degrees, while a blade span 106 of approximately 6 feet or a total diameter of 12 feet can have a blade tilt angle of 12 degrees. Therefore, a fan with a smaller area swept by the blades can have a greater tilt angle to drive a larger volume of airflow within the motor's operating capability. It should be understood that the blade span, blade diameter, and blade tilt angle described herein are exemplary, illustrating that the blade tilt angle can be determined by the blade diameter to maximize volumetric airflow or airspeed based on the motor's operating capability.

[0073] Therefore, installing the push-lock assembly 156 to orient the pin 162 at a predetermined blade tilt angle facilitates the orientation of the blades 20 based on the tilt angle of the blade span 106, thereby maximizing the volumetric flow rate within the motor torque capability range. This eliminates the need for the consumer or installer to determine the appropriate tilt angle or attempt to properly orient the blades 20 at a certain tilt angle to maximize flow. This elimination is due to the provision of a corresponding blade holder 18 for each fan blade 20, which has a predetermined blade tilt angle. It should be understood that the tilt angle is not dependent on the blade span 106. The tilt angle can be any angle and the blade span 106 can be any length. However, it should be appreciated that determining the tilt angle based on the span 106 is beneficial for maximizing the volumetric airflow based on the motor's capability (e.g., torque).

[0074] It should be recognized that the blade hub 202 facilitates attachment and improves the security of the blade support 18. The split sleeve 210 and the locking hole 218 are precisely aligned with the blade inclination in all installed blades 20. The compression fitting 214 secures the blade support 18 to the blade hub 202 with simple tightening of mechanical fasteners. The integrated mounting 204 and rotating blade hub 202 enable rotational operation without the need for additional components to rotate the blades 20.

[0075] Figure 6 An exploded view of a motor assembly 16 is shown, including an upper portion 200 and a lower portion 230 of a motor housing 198 for surrounding a stator 232 and a rotor 234. The stator 232 may include coil windings of conductive material, and the rotor 234 may include a plurality of magnets 240. Alternatively, the stator 232 may include magnets 240, and the rotor 234 may include windings. The upper and lower portions 200, 230 may be coupled and rotate together to define a rotating motor housing 198. The upper and lower portions 200, 230 may further include magnet seats 238 as annular surfaces for supporting the plurality of magnets 240 mounted to or forming part of the rotor 234. The magnet seats 238 may include complementary channels formed in each of the upper and lower portions 200, 230 of the motor housing 198 to collectively form the magnet seat 238. The magnets 240 may be permanent magnets or electromagnets including motor windings. The rotor 234, as well as the upper and lower portions 200, 230, may have multiple mounting holes 242 for mounting the rotor 234 to the motor housing 198 using, for example, mechanical fasteners (such as screws or bolts). The upper and lower portions 200, 230 may each have an edge 243. When the upper and lower portions 200, 230 are mounted, the horizontal edges 243 may be abutted against each other. Alternatively, the upper and lower portions 200, 230 may be spaced apart by a gap (not shown) between the edges 243, through which a portion of the rotor 234 is exposed.

[0076] During operation, current is supplied to stator 232, thereby causing rotor 234 to rotate about stator 232. By mounting rotor 234 to upper and lower parts 200, 230, motor housing 198 can rotate about stator 232, thereby rotating any blade support 18 and blades 20 attached thereto.

[0077] It should be understood that the motor housing 198 is a clamshell-type housing with upper and lower sections 200 and 230 for direct mounting to the rotor 234 to rotate the entire motor housing 198, blade hub 202, and blades 20 connected thereto. The motor housing 198 allows the rotor 234 and stator 232 to be combined and housed within a motor assembly 16 suspended from the suspension assembly 14 without requiring the motor assembly 16 to be fully rotatable. This minimizes operational wear, vibration, and wobbling while increasing service life.

[0078] Now for reference Figure 7A An alternative motor assembly 400 is shown, including a rotatable housing portion 402 having an upper portion 404 and a lower portion 406 forming the rotatable housing portion 402. A rotating blade hub 408 is included on the rotatable housing portion 402 and can be integral with the upper portion 404. At least one blade mount 410 is disposed on the blade hub 408, for example, five blade mounts 410 in one example. Each blade mount 410 includes a pin hole 412 and at least one fastener hole 414. In one example, the pin hole 412 may be generally similar to Figure 5A 218.

[0079] The blade mount 410 may define a generally cylindrical cavity 420. A channel 422 may be formed in the blade mount 410 such that the cavity 420 includes an enlargement 424 at the channel 422. In one example, the channel 422 may be used to guide the pin 162 toward the pin orifice 412 for locking the blade holder 18 to the motor assembly 400 at the blade mount 410.

[0080] Each fastener aperture 414 may include an inserted fastener 432. For example, the fastener 432 may be any suitable fastener, such as a set screw or a headless screw. The fastener aperture 414 is provided in the surface 434. The fastener aperture 414 extends from the surface 434 through the blade mount 410 to the cavity 420. Additionally, a plurality of housing fasteners 436 may be used to secure the upper portion 404 to the lower portion 406, and via similar means. Figure 6 The rotor is fixed in the mounting holes.

[0081] Now for reference Figure 7BThe exploded view shows a set of two fasteners 432 and two saddles 430. The fasteners 432 and saddles 430 can be separate or integral, or coupled to allow rotation of the fasteners 432 without rotating the saddles 430. The saddles 430 include a curved surface 438 opposite the fasteners 432 and a post 439. The fasteners 432 may have a hollow interior 437 adapted to receive the post 439 and allow the fasteners 432 to rotate about the post 439.

[0082] Surface 434 can be offset from the vertical axis 416 by an angle 418 from the surface axis 419. Angle 418 can be any suitable angle, such as 20 degrees in a non-limiting example, so that the fastener orifice 414 is radially aligned with the center of the cavity 420. In addition, the angled surface 434 makes it easy for the user to access the fastener 432 in the fastener orifice 414.

[0083] Now for reference Figure 7C During operation, the user can tighten or loosen the saddle 430 within the cavity 420 by tightening or loosening the fastener 432. The user can then adjust the blade support 18 (e.g., Figure 5B The blade support 18 is inserted into the blade mounting 410. The pin 162 on the blade support 18 is aligned along the groove 422 and the blade support 18 is inserted until the pin 162 is fixed in the pin hole 412.

[0084] After the blade support 18 is inserted, the fastener 432 can be used to tighten the saddle 430 against the first end 150 of the blade support 18 inserted into the blade mounting cavity 420. The tightened saddle 430 abuts the blade support 18 at the curved surface 438 to apply pressure to the first end 150 of the inserted blade support 18, thereby providing an auxiliary fixing measure for the blade support 18.

[0085] The saddle 430 is oriented at an angle 418, such as 20 degrees, as defined by surface 434, and can be radially oriented from the center of the blade support 18. The radial orientation of the saddle 430 against the inserted blade support 18 prevents rotation of the blade support 18 based on the insertion force from the saddle 430. This radial insertion further prevents rotational movement of the pin 162, inserted within the pin orifice 412, relative to the blade mount 410, which would otherwise tend to break the blade support 18.

[0086] It should be recognized that the motor assembly 400 and the blade hub 408 can be broadly similar to Figure 5B The motor assembly 16 and blade hub 202 are used to receive the insertion of the blade holder 18 to attach the blades 20 to the motor assembly 400. The saddle 430 provides an auxiliary holding system for the blade hub 408 and can reduce vibration, noise, or wobbling of the ceiling fan, which can increase overall fan efficiency.

[0087] Figure 8A This is an example of a non-rotating motor shaft 90. The motor shaft 90 includes an upper end 252 and a lower end 254, having a hollow interior 256. The outer surface of the upper end 252 includes a threaded connection 258 for engaging a collar, which may include... Figure 2B Coupling 52 Figure 2C The locking nut 92 or a combination thereof. A keyed recess 260 may be provided at the upper end 252 for alignment with the coupling 52 at the connection. The motor shaft 90 may further include an upper collar 262 and a lower collar 264, the upper collar 262 having an increased outer diameter and the lower collar 264 having a further increased outer diameter larger than that of the upper collar 262. The upper collar 262 includes a progressively increasing outer diameter for the motor shaft 90, thereby defining an annular upper bearing stop 266. The upper collar 262 further includes a wire opening 269. The lower collar 264 includes a diameter that further progressively increases from the upper collar 262, thereby defining a stator stop 268 for supporting the stator winding 232. Below the lower collar 264 is a progressively decreasing diameter defining a lower bearing stop 270.

[0088] like Figure 8B As shown, the upper bearing 272 and the lower bearing 274 are respectively disposed on the upper bearing stop 266 and the lower bearing stop 270. The upper bearing stop 266 and the lower bearing stop 270 are formed within the motor shaft 90 to position the bearings 272 and 274 against the motor shaft 90 and to allow the motor housing 198 to rotate about the non-rotating motor shaft 90.

[0089] Looking at it now Figure 8CThe image shows a cross-section of a portion of the motor assembly 16, illustrating the combination of components associated with a non-rotating motor shaft 90. The non-rotating motor shaft 90 is disposed within a motor housing 198 having bearings 272 and 274 disposed in an upper bearing stop 266 and a lower bearing stop 270. A shim 280 can be placed between the upper bearing 272 and the stator to provide additional support during operation. The stator 232 is placed on the stator stop 268 and its position is fixed relative to the motor shaft 90. A rotor 234 surrounds the stator 232 and is mounted on a magnet mount 238 between an upper portion 200 and a lower motor housing portion 230 of the motor housing 198. Fixing the stator 232 to the stator stop 268 fixes its position relative to the rotor 234, thereby fixing the air gap between them. The upper portion 200 further includes an upper bearing seat 284 abutting against the upper bearing 272 above the upper bearing stop 266. The lower portion 230 further includes a lower bearing housing 286 abutting against the lower bearing 274 below the lower bearing stop 270. The upper bearing housing 284 and the lower bearing housing 286 are configured to clamp the bearings 272, 274 between the upper bearing stop 266 and the lower bearing stop 270, respectively, thereby securing the bearings in place during operation. During operation, rotation of the rotor 234 about the stator 232 causes rotation of the motor housing 198 and the blade support 18 attached thereto, thereby rotating the blades 20 of the ceiling fan 10.

[0090] The coupling 52 is mounted to the upper end 252 of the motor shaft 90, for example, via a threaded connection 258. The coupling 52 is connected to the suspension plate 50 using fasteners 54 or press bolts. The suspension plate 50 is connected to or integral with the suspension assembly 14, thereby mounting the suspension assembly 14 to the motor shaft 90 via the coupling 52. Thus, the suspension assembly 14 suspends the motor shaft 90 from a building or ceiling. During operation, the rotor 234, the motor housing 198 including the upper part 200 and the lower part 230, the mounting member 204, the blade support 18, and the blades 20 can all rotate around the motor shaft 90 around the bearings 272, 274, while the motor shaft 90, stator 232, suspension plate 50, motor coupling 52, and suspension assembly 14 remain fixed and do not rotate.

[0091] The motor shaft 90 may further include a drain hole 288. The drain hole 288 may be located below the opening 269, through which electrical wiring can be supplied. During operation, such as in harsh weather conditions where rain, snow, or precipitation is common, like in agricultural environments, the drain hole 288 can protect the wiring at the opening 269. In one example, rainwater may enter the interior of the motor shaft 90. The motor shaft 90 may become filled with rainwater. The drain hole 288 allows rainwater to drain from the interior of the motor shaft 90 before it can rise to the electronics, thus enabling the ceiling fan to operate outdoors or in wind and rain.

[0092] Motor assembly 16 further includes one or more spring members 282, such as springs or spring fingers, disposed below the lower bearing 274 between the lower bearing 274 and the lower motor housing portion 230, thereby allowing the spring members 282 to rotate as the lower motor housing portion 230 rotates. The spring members 282 provide a downward force at the lower bearing housing 286 against the lower portion 230 of the motor housing 198, which is transmitted to the upper housing portion 200, thereby providing a downward force at the upper bearing housing 284 against the upper bearing 272. During operation, the blades 20 push a volume of air downward, thus also providing an upward force to motor assembly 16. The spring members 282 provide balancing forces against forces generated during operation to maintain fan balance. Thus, the weight of the rotor 234 mounted to the motor housing 198 is transferred to the motor shaft 90 via the upper bearing 272 and is no longer solely load on the motor housing 198.

[0093] It should be recognized that the non-rotating motor shaft 90 facilitates the connection of the motor assembly 16 to the suspension assembly 14. The motor shaft 90, including the upper bearing stop 266, stator stop 268, and lower bearing stop 270, facilitates the alignment of bearings 272, 274 and functions in conjunction with the motor housing 198 to secure the bearings in place between the stops 266, 268 and the bearing seats 284, 286, thereby reducing vibration and movement (such as fan 10 swaying during operation) while allowing the motor housing 198 to rotate. The bearing stops 266, 270 and the stator stop 268 fix the positions of bearings 272, 274 and stator 232 relative to the motor housing 198 and stator 234. Mounting the stator 234 to the motor housing 198 fixes the rotor 234 relative to the stator 232, bearings 272, 274, and motor shaft 90. These positions fix the air gap between the stator 232 and the rotor 234, thereby maintaining stability during operation while determining the operating efficiency of the motor.

[0094] In addition, the spring member 282 forms a preload close to the lower part 230 of the motor housing 198 to balance the position of the rotating motor housing 198 during operation, which further reduces the vibration and movement of the fan 10.

[0095] Looking at it now Figure 9AThe retaining system 300 includes a support cable 302 connected to the retaining rod 304 via a fastener 306. The support cable 302 can be mounted to a ceiling or building, allowing the retaining system 300 to provide redundancy to prevent the ceiling fan 10 from falling or collapsing in the event of a failure of the initial ceiling mounting structure 12. The fastener 306 can be, for example, a bolt with holes 307 for securing with pins 308, or alternatively, a screw and nut system. Opposite the support cable 302, the retaining rod 304 can be connected to a retaining plate 310 comprising an outer portion 312 and an inner portion 314. The inner portion 314 includes an offset opening 316 for receiving insertion of the retaining rod 304. The inner portion 314 has mounting holes 318 for mounting to a motor shaft 90.

[0096] exist Figure 9B The exploded view shows the interconnections of the retaining system 300. A mounting end 320 of the retaining rod 304 can be inserted through an opening 316 in the retaining plate 310, the opening 316 being shaped to receive the mounting end 320. The mounting end 320 may include a flat surface having a mounting hole 322 adapted to be received by a connecting fork 324 on one end of a supporting cable 302. Opposite the mounting end 320, the retaining rod 304 includes a top cover 326 abutting the bottom of the retaining plate 310. The bottom of the retaining plate 310 includes a recess adapted to receive the top cover 326 (see [reference]). Figure 11A ).

[0097] It should be recognized that the retaining system 300 provides redundancy in the event of a failure of the initial ceiling-mounted structure 12. The retaining rod 304, located within the suspension assembly 14, and the motor shaft 90 coupled to the retaining plate 310, allow the fan 10 to continue rotating during such a failure event. This continued rotation allows the fan 10 to decelerate without further damage to internal components and supports the fan 10 from falling. Without the ability to continue rotating, internal components might otherwise come into contact with each other, damaging the fan 10 and its components, or otherwise causing the fan 10 to fall, even with redundancy measures in place to prevent such falls.

[0098] Turn Figure 10A The wiring harness 340 is shown as having a conduit 342, a body 344, and wire leads 346. The conduit 342 extends from the body 344, electrically connecting the body 344 to the building's power supply. The wire leads 346, which may include a live wire 348 and a ground wire 350, are electrically connected to the stator 232 for supplying power to the stator 232 to drive the rotor 234 during operation of the ceiling fan 10. It should be appreciated that the wiring harness 340 isolates the ground wire 350 from the live wire 348, thereby preventing the possibility of a short circuit.

[0099] Looking at it now Figure 10BThe wire harness 340 can slide into the stator 232. The wire harness 340 can terminate at the electrical connector 343, thereby facilitating the insertion connection of the wire harness 340 during the installation of the fan 10. The stator 232 may have a central aperture 360 ​​with a slot 362 sized to accommodate the body 344 of the wire harness 340. Inserting the body 344 into the slot 362 positions the wire leads 346 along the bottom of the stator 232 to supply power to the stator 232.

[0100] Similarly, the opening 269 of the motor shaft 90 is sized to receive the end 364 of the body 344, thereby allowing the conduit 342 to extend through the interior 256 of the motor shaft 90. Thus, the conduit 342 can extend through the interior 256 of the motor shaft 90, allowing the end 364 to be inserted into the opening 269. The combined motor shaft 90 and wire harness 340 can be inserted into the stator 232, such that the extension body 344 of the wire harness 340 is inserted into the slot 362 of the stator 232, thereby providing wire leads 346 to the stator 232.

[0101] It should be recognized that the wire harness 340 is inside the non-rotating motor shaft 90 and passes through it to supply power to the stator 232. In addition, the arrangement of the motor shaft 90 and the retaining system 300 separates the retaining rod 304 from the wire harness 340, thereby minimizing the possibility of electrical short circuits or wear caused by rubbing the two together during operation.

[0102] Looking at it now Figure 11A The cross-sectional view shows the combined motor shaft 90, retaining rod 304, retaining plate 310, and wire harness 340. The retaining plate 310 is mounted to the motor shaft 90 by aligning mounting holes 318 with complementary fastener holes 370 within the motor shaft 90. An offset orientation of opening 316 within the retaining plate 310 positions the retaining rod 304 toward the interior 256 of the motor shaft 90. The retaining plate 310 is mounted to the motor shaft 90 such that opening 316 of the retaining plate 310 is positioned on the opposite side of opening 269 within the motor shaft 90. Thus, the wire harness 340, positioned away from the retaining rod 304 on the opposite side of the interior 256 of the motor shaft 90, is spaced apart from it and prevents any potential contact that could otherwise short-circuit the wire harness 340 or cause it to wear against each other during operation.

[0103] Turn now Figure 11BThe assembly of motor assembly 16 can be understood. From the bottom, retaining rod 304 is inserted through retaining plate 310 until top cover 326 abuts the inner portion 314 of retaining plate 310. The inner portion 314 is mounted to the bottom of motor shaft 90 through orifice 380 in lower motor housing portion 230. Motor shaft 90 is non-rotating, and therefore retaining plate 310 is non-rotating and spaced apart from lower motor housing portion 230 to allow rotation of motor housing portion 230 during operation. Wiring harness 340 is inserted into opening 269 of motor shaft 90, thereby allowing wiring tube 342 to extend upward through interior 256 of motor shaft 90. Lower bearing 274 is positioned at lower bearing stop 270, thereby securing lower bearing 274 between motor shaft 90 and lower bearing seat 286. Spring member 282 ( Figure 8C The upper bearing 272 can be positioned between the bottom of the lower bearing 274 and the lower motor housing portion 230, thereby providing a downward force on the lower motor housing portion 230. The rotor 234 and stator 232 can be positioned around the motor shaft 90 such that the rotor 234 is placed on the magnet seat 238 of the lower housing portion 230 and the stator 232 is placed on the stator stop 268 of the motor shaft 90. The upper bearing 272 can be positioned on the upper bearing stop 266 such that the upper bearing seat 284 secures the upper bearing 272 against the motor shaft 90. The upper housing portion 200 can be mounted to the lower housing portion 230 via the rotor 234 using multiple fasteners, thereby enclosing the rotor 234, stator 232, motor shaft 90, bearings 272 and 274, and wire harness 340. The support cable 302 can be connected at the connecting fork 324 to the mounting end 320 of the retaining rod 304 extending through the top of the upper motor housing portion 200. Coupling 52 is disposed around support cable 302 and connected to motor shaft 90. Coupling 52 can be mounted to suspension plate 50 to suspend motor assembly 16 from suspension assembly 14 and building.

[0104] In operation, power is supplied to the stator 232 via the wiring harness 340, thereby causing the rotor 234 to rotate. The rotor 234 is coupled to the motor housing 198 and rotates about the stator 232, thereby rotating the blade support 18 and the blades 20 attached thereto.

[0105] It should be appreciated that the ceiling fan 10 described herein offers numerous advantages. These advantages may be combined in one embodiment or may be utilized individually in any particular embodiment. Examples of some of these advantages are given below. The suspension assembly 14 utilizes a suspension plate 50 to mount to a coupling 52 for mounting to a motor shaft 90. The combination of the suspension plate 50 and the coupling 52 facilitates mounting the suspension assembly 14 to the motor shaft 90 for suspending the motor assembly 16 from the ceiling. Furthermore, the suspension plate 50 and the coupling 52 allow the motor shaft 90 to be non-rotating without requiring the suspension assembly 14 or the entire motor assembly 16 to rotate. Additionally, the suspension assembly 14 includes a cable fitting 58 for mounting the suspension assembly 14 to the ceiling independently of the initial ceiling mounting structure 12. Moreover, the non-rotating nature of the suspension assembly 14 facilitates direct mounting of the cable fitting 58 to the suspension assembly 14 without the need for a separate non-rotating element for mounting to the cable 22. The cable system provides redundancy in the event that the fan 10 might fall from the ceiling mounting structure and reduces operating vibration and slewing tilt.

[0106] Furthermore, the double-ended bolt 94 or press bolt facilitates the alignment and installation of the suspension plate 50 and the coupling 52. Bolt 94 allows the suspension assembly 14 to be quickly installed onto the motor shaft 90 via the coupling 52. In addition, the use of the lock nut 92 facilitates the sliding insertion of the motor shaft 90 into the coupling 52 and provides redundant connection for attaching the motor shaft 90 to the coupling 52.

[0107] Furthermore, the blade 20 can have a thickness-to-chord ratio of approximately 13.8% and include an airfoil shape to maximize the efficiency of the blade 20. Moreover, the blade span 106, chord 116, thickness 122, rotational speed, and tilt angle can be adjusted to maximize efficiency, airspeed, and airflow volume during the operation of the ceiling fan 10.

[0108] Furthermore, the blade support 18, including cross sections 140, 142 at the first end 150 and the second end 152, facilitates the mounting of the blade 20 onto the mounting member 204. The size and shape of the blade support 18 minimize system weight while maximizing structural integrity, thus improving overall efficiency. The blade support 18 includes a push-lock assembly 156 with a pin 162, which determines the blade tilt angle. Thus, based on blade characteristics such as span, the push-lock assembly 156 can be manufactured to orient the blade 20 at an optimal tilt angle to maximize efficiency without requiring such determination by the installer or consumer.

[0109] Furthermore, the blade hub 202 with multiple mounting pieces 204 facilitates attachment and enhances the security of the blade support 18. The split sleeve 210 and locking pinhole 218 precisely align the blade inclination of all installed blades 20. The compression fitting 214, using mechanical fasteners, secures the blade support 18 to the blade hub 202. The integrated mounting pieces 204 and rotating blade hub 202 enable rotational operation without the need for additional components to rotate the blades 20.

[0110] Furthermore, the motor housing 198 is a clamshell-type housing with upper and lower sections 200 and 230 for direct mounting to the rotor 234 to rotate the entire motor housing 198, blade hub 202, and blades 20 connected thereto. The motor housing 198 allows the rotor 234 and stator 232 to be housed within the motor assembly 16. Thus, the motor housing 198 can rotate to drive the blades 20 without the rotation of the entire motor assembly 16. Operating wear, vibration, and wobbling are minimized while service life is increased.

[0111] Furthermore, the non-rotating motor shaft 90 facilitates the connection of the motor assembly 16 to the suspension assembly 14. The motor shaft 90, including an upper bearing stop 266, a stator stop 268, and a lower bearing stop 270, facilitates the alignment of bearings 272, 274 and functions in conjunction with the motor housing 198 to secure the bearings in place between the stops 266, 268 and the bearing seats 284, 286, thereby reducing vibration and wobbling of the fan 10 during operation while allowing rotation of the motor housing 198. The stator stop 268, in conjunction with mounting the rotor 234 to the motor housing 198, fixes the air gap between the stator 232 and the rotor 234, thereby determining operating efficiency and maintaining the operational stability of the motor assembly 16. In addition, the spring member 282 forms a preload close to the lower part 230 of the motor housing 198 to balance the position of the rotating motor housing 198 during operation, which further reduces the vibration and wobbling of the fan 10 and counteracts the upward force generated by the rotation of the fan blades 20.

[0112] Furthermore, the retaining system 300 provides redundancy in the event of a failure of the initial ceiling-mounted structure 12. The retaining rod 304, located within the suspension assembly 14, and the motor shaft 90 coupled to the retaining plate 310, allow the fan 10 to continue rotating during such a failure event. This continued rotation allows the fan to decelerate without further damage to internal components and supports the fan 10 from falling. Without the ability to continue rotating, internal components might otherwise come into contact with each other, damaging the fan 10 and its components, or otherwise causing the fan 10 to fall, even with redundancy measures in place to prevent such falls.

[0113] Furthermore, the wiring harness 340 is located inside and passes through the non-rotating motor shaft 90 to supply power to the stator 232. In addition, the arrangement of the motor shaft 90 and the retaining system 300 separates the retaining rod 304 from the wiring harness 340, thereby minimizing the possibility of electrical short circuits or wear caused by friction between the two during operation.

[0114] Furthermore, the combination of components provides a way to suspend the motor assembly 16 from the suspension assembly 14 together with the non-rotating suspension assembly 14 via the non-rotating motor shaft 90. The combination of components disclosed herein maximizes fan efficiency while providing redundancy in the event that the fan 10 may fall, which can occur in industrial environments due to typical industrial operations (which may involve the fan hitting the ground). Additionally, the disclosed fan 10 is easy to install due to its easily interconnected components. Furthermore, the overall vibration and wobbling of the fan 10 are reduced, thereby further increasing efficiency while minimizing noise and power consumption.

[0115] Now for reference Figure 12 Another exemplary ceiling fan 510 is shown. The ceiling fan 510 includes a motor housing 512. A central aperture 520 may be formed at the center of the motor housing 512 and extend through it. The motor housing 512 may serve as a rotating blade hub for mounting a set of blades 514, shown as four blades, and may be mounted to the motor housing 512 via mounting posts 516. For example, the blades 514 may be similar to the blades described herein, such as... Figures 3A to 3C The blade 20 described herein. A set of hub slots 518 may be formed in the motor housing 512, adapted to connect mounting posts 516 for mounting the blade 514 to the motor housing 512.

[0116] Figure 13 It shows Figure 12An enlarged view of the motor housing 512. The motor housing 512 may have an upper surface 530. The hub slot 518 may have a bottom wall 532, while a tapered wall 534 extends between the upper surface 530 and the bottom wall 532. The bottom wall 532 may be horizontal. The tapered wall 534 may have a variable cross-sectional area, defining an inner wall 536 that extends into a neck 538 terminating at a throat 540. A mouth 542 extends from the throat 540 to the end edge 544 of the motor housing 512. Fasteners 546 may engage mounting posts 516 to the motor housing 512 and blades 514 to mounting posts 516. As shown, two fasteners 546 engage each mounting post 516 to the motor housing 512, and two fasteners 546 engage each blade 514 to each complementary mounting post 516. Although two fasteners 546 are shown at each location, any number of fasteners can be contemplated. Fastener 546 can be any suitable fastener, such as a screw or bolt in a non-limiting example.

[0117] The ceiling fan 510 further includes a motor shaft 550 disposed within and partially extending from a motor housing 512 for connection to a motor interior within the motor housing 512. A nut 598 redundantly secures the motor housing 512 to the motor shaft 550. A coupling 552 is connected to the motor shaft 512 for suspending the ceiling fan 510. Additionally, a second suspension system 554 is visible for redundantly suspending the ceiling fan 510 from the building via the motor shaft 552.

[0118] Now for reference Figure 14 ,along Figure 13 The cross-section of the ceiling fan 510 is taken from section XIV-XIV. Fasteners 560 connect the upper motor housing portion 562 and the lower motor housing portion 564 to form a motor housing 512. The upper and lower motor housing portions 562 and 564 enclose a motor assembly 566, which includes a fixed stator 568 and a rotor 570 rotatable about the stator 568. The stator is non-rotating and slidably coupled to a motor shaft 550. Fasteners 560 engage the rotor 570 to the motor housing 512 such that the motor housing 512 rotates with the rotor 570. The stator 568 is fixed to the motor shaft 550 such that the motor shaft 550 is non-rotating. The rotor 570, the motor housing 512, and any other rotating parts of the ceiling fan enclosed within the motor housing 512 may define a rotor assembly that rotates about the motor shaft 550.

[0119] The motor shaft 550 may include an upper shoulder 556 and a lower shoulder 558. Two bearings 572 are slidably mounted to the motor shaft 550 to allow the motor housing 512 to rotate about the motor shaft 550. The bearings 572 abut against the rotor assembly at the motor housing 516. The upper bearing 572 may be positioned at the upper shoulder 556 and the lower bearing 572 may be positioned at the lower shoulder 558. Each bearing 572 includes an inner housing 574 and an outer housing 576 that enclose a set of bearing balls 578. Thus, the outer housing 576 can rotate with the motor housing 512 via the bearing balls 578, while the inner housing 574 can remain stationary at the motor shaft 550.

[0120] Bearings 572, placed on shoulders 556 and 558, can support motor assembly 566. Thus, motor connector 552 can suspend motor shaft 550 from the building, and motor shaft 550 can support the remainder of ceiling fan 510, including motor assembly 566 or any blades attached thereto.

[0121] A set of shims 580 is slidably mounted to the motor shaft 550. Shims 580 space the bearing 572 from the stator 568. Shims 580 are positioned against the inner housing 574 of the bearing, which is a non-rotating element, and the stator 568. An upper shim 380 is externally attached to an upper shoulder 556. Shims 580 fix the sliding positions of the first and second bearings 572 relative to the stator along the motor shaft 550. Thus, the stator 568 is compressively held between the first and second shims 580, and the bearing 572 compressively holds the shims 580, thereby holding the stator 568. Shims 580 hold the bearing 572 in a position against the motor housing 512 to minimize wobbling or vibration of the motor assembly 566. On the opposite side of the lower bearing 572, a spring member 582 is provided to load the bearing 572 against the motor housing 512. Spring member 582 can be positioned between the housing 512 and the two rotating components, close to the outer housing 576 of bearing 572. Thus, spring member 582 can also be a rotating component. Spring member 582 also minimizes swaying or vibration originating from motor assembly 566. At the bottom of lower motor housing 564, plate 583 can be fixed to motor housing 512 to enclose motor assembly 566 at the bottom.

[0122] An electrical port 584 is disposed in the motor shaft 550, and an electrical conduit 586 extends through the electrical port 584. The electrical conduit 586 can provide power to the stator 568 to power the motor assembly 566 to drive the rotor 570.

[0123] Coupling 552 is connected to motor shaft 512 for suspending ceiling fan 510 from a building. A pin hole 588 is formed in motor shaft 550, and opposite pin hole 588, a seat 590 is disposed inside motor shaft 550. Alternatively, seat 590 may be an additional pin hole 588 extending through motor shaft 550. Insert pin 592 is inserted through pin hole 588 and secured in seat 590. Retaining rod 594 may be attached to pin 592 and includes retaining hole 596. Retaining hole 596 may be secured to a redundant system, for example, a wire rope extending through a connecting suspension rod. Thus, retaining rod 594 can be connected to motor shaft 550 via pin hole 588 and insert pin 592 in seat 590.

[0124] A nut 598 with a locking washer 600 can be disposed around the top of the motor shaft 550 within the coupling 552. The nut 598 redundantly secures the coupling 552 to the motor shaft 550. Additionally, the nut 598 can secure a pin 592 within a pin hole 588.

[0125] The combination of pin 592, hook 596, and nut 598 defines the auxiliary suspension system 554. The auxiliary suspension system 554 provides redundant mounting for the ceiling fan 510. With the auxiliary suspension system 554 mounted on non-rotating parts of the ceiling fan 510, such as the motor shaft 550, the redundant operation of the auxiliary suspension system 554 allows the ceiling fan 510 to continue rotating during use, thereby minimizing potential damage to the ceiling fan 510 during operation of the auxiliary suspension system 554.

[0126] Figure 15 yes Figure 14 The exploded view of the components shown includes the disassembled mounting post 516. During assembly, the motor assembly 566 can be coupled to the motor shaft 550. Figure 14 The electrical conduit 586 can be installed into the motor assembly 566 within the motor shaft 550. The gasket 580 can be installed on either side of the motor assembly 566 along the motor shaft 550. The bearing 572 can be installed on either side of the gasket 580. At the bottom, the spring member 582 can be positioned against the bearing 572. At the top, the coupling 552 and the auxiliary suspension system 554 can be installed above the motor shaft 550. The mounting post 516 can be installed into the motor housing 512 for mounting the blades.

[0127] Turn now Figure 16An exemplary mounting post 516 is shown. For example, the mounting post 516 may be hollow and made of steel, thereby reducing weight while maintaining structural integrity. The mounting post 516 includes a first portion as a hub portion 610 and a second portion as a blade portion 612. The hub portion 610 and the blade portion 612 may have a non-constant cross-sectional area along the length of the post 516, but it is conceivable that the cross-sectional area may be constant. The hub portion 610 can be mounted to... Figure 15 The motor housing 512 and the blade portion 612 can be mounted to Figure 12 The blade 514. A set of mounting holes 616 may be formed in the mounting post 516, shown as two holes 616 in each portion 610, 612. A bend 614 is formed in the mounting post 516. The bend 614 orients the mounting post 516 such that the hub portion 610 and the blade portion 612 are rotatably offset from each other by an offset angle 616. For example, this offset may be between 1 degree and 45 degrees. The offset angle 616 can be used to attach the blade to the mounting post 516 at an angle of inclination or angle of attack relative to the blade's chord. The bend 614 achieves that the hub portion 610 and the blade portion 612 are respectively close to the horizontal bottom wall 532 ( Figure 13 The blades 514 are installed flush with the flat surface. A specific offset angle 616 can be adjusted based on a particular ceiling fan 510 to maximize efficiency. For example, the offset angle 616 can be increased or decreased based on the blade length or the rotational speed of the ceiling fan 510.

[0128] It should be realized that Figures 12 to 16 The ceiling fan 510 and related components described herein provide an improved efficiency ceiling fan. The ceiling fan 510 maximizes airflow while minimizing energy consumption. Additionally, the auxiliary suspension system 554 provides a redundant mounting system for the fan. Components are optimized to reduce weight to further improve efficiency and minimize the weight load on the suspension structure.

[0129] Figure 17 The blade holder is shown, which may be the blade holder 18 described herein, having an alternative push-lock assembly 650 for mounting the blade holder 18 to the ceiling fan motor housing, such as the motor hub, for example. Figure 1B The motor housing 198. The push-lock assembly 650 includes an end cap 652 with a pin hole 654. A pin 656 is disposed in the pin hole 654. The blade support 18 includes a spring pin hole 658. A spring pin 660 is disposed in the spring pin hole 658. The spring pin 660 connects the push-lock assembly 650 to the blade support 18. During assembly, the push-lock assembly 650 can be inserted into the blade support 18 and the spring pin 660 can be inserted into the spring pin hole 658 to secure the push-lock assembly 650 to the blade support 18.

[0130] Now for reference Figure 18 To provide a view of the internal components of the push-lock assembly 650, the end cap 652 is shown in dashed lines. The end cap 652 further includes a locking end 670 and a mounting end 672. The mounting end 672 has a smaller diameter than the locking end 670, thereby allowing insertion into the blade iron member 18. Figure 17 Mounting end 672 also has a pair of opposing orifices 674 for receiving spring pin 660.

[0131] Within the locking end 670 is a pin assembly 676. The pin assembly 676 includes a pin 656, a spring 680, and a washer 682. A seat 684 is formed within the locking end 670 as part of an end cap 652. The washer 682 may be located at the seat 684 to secure the spring 680 there. The spring 680 abuts against the pin 656 opposite the seat 684 and the washer 682. The pin 656 further includes a pin end 686 and an actuating end 688. The actuating end 688 includes a widened diameter and abuts against the spring 680. Thus, the pin 656 can be actuated via the spring 680 to move the pin end 686 in and out of a pin orifice 654.

[0132] In operation, pin 656 can be actuated via spring 680 to retract during insertion of push-lock assembly 650, for use in securing blade support 18 ( Figure 17 It is connected to the ceiling fan or motor housing. During insertion, pin 656 retracts into end cap 652. When fully inserted, pin 652 extends into the receiving aperture, for example... Figure 5A The pin lock 218 has a receiving port. In such a receiving port, the push-lock assembly 650 is attached to the ceiling fan to mount the blade holder 18. Blades, such as those described herein, can be mounted to the opposite end of the blade holder 18 to mount the blades to the ceiling fan.

[0133] The push-lock assembly 650 provides a reinforcing assembly for attaching a blade holder to a ceiling fan or motor housing. The push-lock assembly 650 also provides a simple assembly that facilitates the sliding insertion of the blade holder 18 for mounting to the motor housing. Removal of such a blade holder 18 is further simplified by pressing down the pin 656 and sliding it off. Therefore, it should be appreciated that the push-lock assembly provides a simplified assembly for mounting blades and blade fittings to a ceiling fan, thereby reducing costs and enabling ease of use by the user or installer.

[0134] In addition to the concepts covered by the above, the following concepts can also provide a basis for the scope of protection in any possible combination:

[0135] A ceiling fan includes: a motor assembly having a non-rotating motor shaft and a rotating blade hub that rotates about the non-rotating motor shaft; a plurality of blades mounted to the rotating blade hub; and a suspension rod having a configuration for mounting to an upper end of a building and to a lower end of the non-rotating motor shaft.

[0136] A ceiling fan assembly further includes a coupling connected to a non-rotating motor shaft and a suspension plate connected to the lower end of a suspension rod, wherein the coupling and the suspension plate are fixed to each other.

[0137] A ceiling fan assembly in which a coupling is located above a rotating blade hub.

[0138] A ceiling fan in which a coupling is located on the upper end of a non-rotating motor shaft.

[0139] A ceiling fan assembly in which a coupling includes a collar having a central opening for receiving a non-rotating motor shaft.

[0140] A ceiling fan assembly in which a collar slides on a non-rotating motor shaft.

[0141] A ceiling fan assembly in which a collar slides on a non-rotating motor shaft.

[0142] A ceiling fan assembly in which a collar is indexed relative to a non-rotating motor shaft.

[0143] A ceiling fan assembly, wherein the index includes: a collar and a non-rotating motor shaft, one of which includes a key and the other includes a keyway for receiving the key.

[0144] A ceiling fan assembly further includes a lock nut screwed onto a portion of a non-rotating motor shaft.

[0145] A ceiling fan assembly in which at least one of the coupling and the suspension plate has a double-ended bolt, and at least one of the coupling and the suspension plate has an opening for receiving the double-ended bolt.

[0146] A ceiling fan assembly further includes nuts screwed onto stud bolts to secure the coupling and suspension plate together.

[0147] A ceiling fan assembly further includes a cable fitting mounted to a suspension rod.

[0148] A ceiling fan assembly in which a cable fitting is located above the lower end of a suspension rod.

[0149] A ceiling fan assembly in which the cable fitting includes a disc having multiple openings.

[0150] A ceiling fan assembly, wherein the disc has an inner ring and an outer ring, with an opening between the inner ring and the outer ring.

[0151] A ceiling fan assembly further includes at least one screw clip having a hook extending through an opening and hooking onto an outer ring.

[0152] A ceiling fan assembly in which the disc is welded to the suspension rod.

[0153] A ceiling fan includes: a motor assembly having a rotating blade hub; a plurality of blades mounted to the rotating blade hub; a suspension rod having a configuration for mounting to an upper end of a building and a lower end of the motor assembly; and a cable fitting mounted to the suspension rod.

[0154] A ceiling fan assembly in which a cable fitting is located above the lower end of a suspension rod.

[0155] A ceiling fan assembly in which the cable fitting includes a disc having multiple openings.

[0156] A ceiling fan assembly, wherein the disc has an inner ring and an outer ring, with an opening between the inner ring and the outer ring.

[0157] A ceiling fan assembly further includes at least one screw clip having a hook extending through an opening and hooking onto an outer ring.

[0158] A ceiling fan assembly in which the disc is welded to the suspension rod.

[0159] A ceiling fan includes: a motor assembly having a rotating blade hub and a suspension mount; a plurality of blades mounted to the rotating blade hub; a suspension rod having a configuration for mounting to an upper end of a building and a lower end for mounting a motor; and a plurality of studs disposed in one of the suspension mount or the motor mount, with corresponding openings disposed in the other of the suspension mount or the motor mount, wherein the studs are received within the openings to aid in securing the suspension rod to the motor assembly.

[0160] A ceiling fan further includes a motor assembly plate connected to a motor assembly and a suspension plate connected to the lower end of a suspension rod, wherein a stud is disposed on one of the motor assembly plate or the suspension plate and an opening is disposed in the other of the motor assembly plate and the suspension plate.

[0161] A ceiling fan in which a motor assembly includes a non-rotating shaft about which a rotating blade hub rotates and has a coupling forming a motor assembly plate.

[0162] A ceiling fan in which a coupling is located above the hub of rotating blades.

[0163] A ceiling fan in which a coupling is located on the upper end of a non-rotating motor shaft.

[0164] A ceiling fan in which the coupling includes a collar having a central opening for receiving a non-rotating motor shaft.

[0165] A type of ceiling fan in which a collar slides on a non-rotating shaft.

[0166] A ceiling fan in which a collar is indexed relative to a non-rotating shaft.

[0167] A ceiling fan, wherein the index includes: a collar and a non-rotating shaft, one of the collar and the non-rotating shaft including a key and the other including a keyway for receiving the key.

[0168] A ceiling fan further includes a lock nut screwed onto a threaded portion of a non-rotating motor shaft.

[0169] A type of ceiling fan in which the studs are double-ended bolts.

[0170] A ceiling fan assembly further includes nuts screwed onto stud bolts to secure the coupling and suspension plate together.

[0171] A ceiling fan includes: a motor assembly having a rotating blade hub having a first receiver; at least one fan blade having a second receiver; and a blade support having a first end and a second end, the first end having a first cross-section and the second end having a second cross-section different from the first cross-section, the first end being received in the first receiver and the second end being received in the second receiver to connect the blade to the blade hub.

[0172] A ceiling fan assembly wherein first and second cross sections have height and width, and the height of the second cross section is less than the height of the first cross section.

[0173] A ceiling fan assembly wherein the first and second cross sections have the same area.

[0174] A ceiling fan assembly in which the first and second cross sections are not identical.

[0175] A ceiling fan assembly in which the area of ​​a second cross section is greater than the area of ​​a first cross section.

[0176] A ceiling fan assembly wherein a first cross-section is circular and a second cross-section is elliptical.

[0177] A ceiling fan assembly in which the blade support includes a circular segment defining a circle, an elliptical segment defining an ellipse, and a transition segment connecting the circular segment and the elliptical segment, the transition segment transitioning from a circle to an ellipse.

[0178] A ceiling fan assembly in which the blade support is a single piece.

[0179] A ceiling fan assembly in which the blade support is formed by stamping.

[0180] A ceiling fan assembly in which an elliptical segment has multiple mounting openings.

[0181] A ceiling fan assembly in which a second receiver is located inside the blades and an elliptical segment is received within the second receiver.

[0182] A ceiling fan assembly in which fasteners extend through multiple openings and blades.

[0183] A ceiling fan assembly, wherein a first receiver includes at least one sleeve and a circular segment is received within the sleeve.

[0184] A ceiling fan assembly further includes an index portion for a rotatable position relative to a fixed circular segment of a sleeve.

[0185] A ceiling fan assembly, wherein the index section includes a bias stop device.

[0186] A ceiling fan assembly, wherein the biasing stop includes a biasing pin on one of a circular segment and a sleeve, and a recess on the other of the circular segment and the sleeve for receiving the pin.

[0187] A ceiling fan assembly in which blades include a hollow interior and an open end, forming at least a portion of a second receiver.

[0188] A ceiling fan assembly, wherein a first receiver includes at least one split sleeve and a first end is received within the at least one split sleeve and compressed and held therein.

[0189] A ceiling fan assembly further includes an indexing portion that fixes the rotational position of the blades relative to the blade hub.

[0190] A ceiling fan assembly further includes mechanical fasteners that pass through the blades and a second end to secure the blades to a blade support.

[0191] The aspects of this disclosure described herein relate to a ceiling fan, including: a motor assembly having a rotating blade hub; and at least one blade mount disposed on the blade hub and having a split sleeve and a compression fitting for closing the split sleeve.

[0192] A ceiling fan in which a motor assembly includes a rotatable housing portion and a blade hub disposed on the rotatable housing portion.

[0193] A ceiling fan in which a motor assembly includes a non-rotating motor shaft and a rotatable housing portion that rotates about the non-rotating motor shaft.

[0194] A ceiling fan in which the blade hub and the rotatable housing portion are integrally formed.

[0195] A ceiling fan in which a split sleeve and a compression fitting are integrally formed with a rotatable housing portion.

[0196] A ceiling fan in which a motor assembly includes an upper motor housing and a lower motor housing, and one of the upper motor housing and the lower motor housing forms a rotatable housing portion.

[0197] A ceiling fan further includes a pair of axially spaced compression fittings that close a split sleeve.

[0198] A ceiling fan in which a compression fitting and a split sleeve are integrally formed.

[0199] A ceiling fan in which the compression fitting includes a split ring.

[0200] A ceiling fan, further comprising a rotating index section.

[0201] A ceiling fan in which the rotating index section includes a stop device in the sleeve.

[0202] A ceiling fan in which the stop device is aligned with a crack in a split sleeve.

[0203] A ceiling fan in which a stop device is located inside a compression fitting.

[0204] A ceiling fan, wherein at least one blade mount includes a plurality of blade mounts radially spaced around a blade hub.

[0205] A ceiling fan in which the motor assembly includes a rotatable housing portion having a central hub and blade mounts extending radially from the hub.

[0206] A ceiling fan in which a motor assembly includes a non-rotating shaft and a hub surrounds and rotates about the non-rotating shaft.

[0207] A ceiling fan in which the motor assembly includes an upper motor housing and a lower motor housing, and one of them forms a rotatable housing portion.

[0208] A ceiling fan in which the blade mount is integrally formed with one of the upper motor housing and the lower motor housing.

[0209] A ceiling fan includes: an upper motor housing; a lower motor housing; and a magnet holder formed in a portion of the upper and lower housings, configured to receive a rotor and mount the rotor to the upper and lower motor housings.

[0210] A ceiling fan in which the magnet includes a permanent magnet.

[0211] A ceiling fan in which the magnet includes an electromagnet.

[0212] A ceiling fan in which the electromagnet includes motor windings.

[0213] A ceiling fan in which a magnet base includes opposing channels formed in each of an upper and lower housing, which together form a magnet base when the upper and lower housings are fixed together.

[0214] A ceiling fan in which an upper housing and a lower housing are fastened together by mechanical fasteners.

[0215] A ceiling fan wherein at least one of the upper or lower housings rotates to define a rotating housing.

[0216] A ceiling fan further includes a blade assembly coupled to a blade mount.

[0217] A ceiling fan in which a blade assembly includes blades and a blade support for attaching the blades to the blade support.

[0218] A ceiling fan further includes a non-rotating motor shaft about which a rotating housing rotates.

[0219] A ceiling fan in which a rotating housing is rotatably mounted to a non-rotating motor shaft.

[0220] A ceiling fan further includes a stator winding mounted to a non-rotating shaft and located within an interior defined by an upper housing and a lower housing.

[0221] A ceiling fan in which a magnet forms part of the rotor of a motor.

[0222] A ceiling fan in which an upper housing and a lower housing rotate about a non-rotating axis.

[0223] A ceiling fan further includes an upper bearing and a lower bearing, wherein a non-rotating shaft has an upper bearing stop and a lower bearing stop for supporting the bearings that the upper and lower housings abut against.

[0224] A ceiling fan in which the upper and lower housings are biased relative to their corresponding housing mounts.

[0225] A ceiling fan in which the stator windings are fixed relative to a non-rotating shaft and about a housing base.

[0226] A ceiling fan includes: a non-rotating motor shaft having an upper bearing stop and a lower bearing stop; a stator mounted to the non-rotating motor shaft; a rotor surrounding the stator; a motor housing having an upper bearing housing spaced above the upper bearing stop and a lower bearing housing spaced below the lower bearing stop; an upper bearing seated in the upper bearing housing; a lower bearing seated in the lower bearing housing; and a suspension rod connector disposed on the non-rotating shaft; wherein when the ceiling fan assembly is suspended from a building using the suspension rod connector, the weight of the rotor presses against the upper bearing stop against the upper bearing, causing the weight of the rotor to be transferred to the non-rotating shaft via the upper bearing.

[0227] A ceiling fan assembly further includes a spring located within a lower bearing housing and abutting against a lower bearing stop to bias the lower bearing.

[0228] A ceiling fan assembly in which a non-rotating motor shaft is hollow and further includes a retaining rod passing through the hollow motor shaft.

[0229] A ceiling fan assembly in which the lower end of a retaining rod has a top cover adjacent to a retaining plate located near the lower part of a non-rotating shaft.

[0230] A ceiling fan assembly in which the upper end of a retaining rod is located above the upper end of a non-rotating shaft.

[0231] A ceiling fan assembly in which the upper end of the retaining rod terminates at a connecting fork.

[0232] A ceiling fan assembly, wherein the rotor includes an upper housing and a lower housing fixed together, the upper housing having an upper bearing seat and the lower housing having a lower bearing seat.

[0233] A ceiling fan assembly in which an upper housing and a lower housing define a magnet holder, and the magnet of the rotor is located in the magnet holder.

[0234] A ceiling fan assembly in which the magnet base includes opposing channels formed in each of the upper and lower housings.

[0235] A ceiling fan assembly in which an upper housing and a lower housing are fastened together by mechanical fasteners.

[0236] A ceiling fan assembly further includes a plurality of blade mounts disposed on one of an upper housing and a lower housing.

[0237] A ceiling fan assembly in which the blade mount includes at least one split sleeve.

[0238] A ceiling fan assembly in which the blade mount includes at least two axially aligned split sleeves.

[0239] A ceiling fan assembly, wherein the blade mount further includes a blade rotation stop.

[0240] A ceiling fan assembly in which a non-rotating shaft has a stator stop located between an upper bearing housing and a lower bearing housing.

[0241] A ceiling fan assembly in which a stator stop and a lower bearing housing are formed by one or more collars on a non-rotating shaft.

[0242] A ceiling fan assembly in which a non-rotating motor shaft includes a drain hole.

[0243] A ceiling fan includes: a motor assembly having a hollow, non-rotating motor shaft; and a retaining rod passing through the motor shaft; wherein the retaining rod provides a redundant mounting system for the ceiling fan.

[0244] A ceiling fan further includes a retaining plate, wherein a retaining rod secures the retaining plate and the retaining plate is fixed to a non-rotating motor shaft.

[0245] A ceiling fan in which a non-rotating motor shaft is hollow and a retaining rod extends at least into the hollow portion of the non-rotating motor shaft.

[0246] A ceiling fan in which the lower end of the retaining rod has a top cover adjacent to the lower part of a non-rotating shaft.

[0247] A ceiling fan in which the upper end of the retaining rod is located above the upper end of the non-rotating shaft.

[0248] A ceiling fan in which the upper end of the retaining rod terminates at a connecting fork.

[0249] A ceiling fan further includes a coupling connected to a non-rotating shaft and a suspension plate connected to the lower end of a suspension rod, wherein the coupling and the suspension plate are fixed to each other.

[0250] A ceiling fan in which a coupling is located on the upper end of a non-rotating motor shaft.

[0251] A ceiling fan in which the coupling includes a collar having a central opening for receiving a non-rotating motor shaft.

[0252] A ceiling fan in which a collar slides on a non-rotating motor shaft.

[0253] A ceiling fan in which a collar is indexed relative to a non-rotating motor shaft.

[0254] A ceiling fan, wherein the index includes: a collar and a non-rotating motor shaft, one of which includes a key and the other includes a keyway for receiving the key.

[0255] A ceiling fan further includes a lock nut screwed onto a threaded portion of a non-rotating motor shaft.

[0256] A ceiling fan wherein at least one of the coupling and the suspension plate has a double-ended bolt, and at least one of the coupling and the suspension plate has an opening for receiving the double-ended bolt.

[0257] A ceiling fan further includes nuts screwed onto double-ended bolts to secure the coupling and suspension plate together.

[0258] A ceiling fan includes: a motor assembly having a non-rotating hollow motor shaft; a stator winding carried by a motor bearing; and a wire harness passing through the hollow portion of the motor shaft and electrically connected to the stator winding.

[0259] A ceiling fan further includes a hollow suspension rod mounted to a motor shaft, and a wire harness passing through the hollow portion and non-rotating shaft of the suspension rod.

[0260] A ceiling fan further includes a retaining rod that passes through a hollow suspension rod and is secured to at least one of a non-rotating motor shaft and a motor assembly.

[0261] A ceiling fan further includes a coupling connected to a non-rotating shaft and a suspension plate connected to the lower end of a suspension rod, wherein the coupling and the suspension plate are fixed to each other.

[0262] A ceiling fan in which a coupling is located on the upper end of a non-rotating motor shaft.

[0263] A ceiling fan further includes a lock nut screwed onto a threaded portion of a non-rotating motor shaft.

[0264] A ceiling fan in which the lower end of the retaining rod has a top cover adjacent to the lower part of a non-rotating shaft.

[0265] A ceiling fan in which the upper end of the retaining rod is located above the upper end of the non-rotating shaft.

[0266] A ceiling fan in which the upper end of the retaining rod terminates at a connecting fork.

[0267] A ceiling fan further includes an outlet channel extending from a hollow portion through the exterior of a motor shaft, and a wire harness passing through the outlet channel.

[0268] A ceiling fan in which a non-rotating shaft includes a stator stop, against which stator windings are placed.

[0269] A ceiling fan in which the stator stop includes a collar surrounding a non-rotating shaft.

[0270] A ceiling fan includes: a motor assembly having a rotating blade hub; a plurality of blades; at least one blade support for mounting the plurality of blades to the blade hub; at least one blade mount disposed on the blade hub for receiving the blade support and having at least one fastener orifice and at least one pin orifice; at least one saddle disposed in the fastener orifice; and at least one fastener for selectively tightening or loosening the saddle.

[0271] A ceiling fan in which a motor assembly includes a rotatable housing portion and a blade hub disposed on the rotatable housing portion.

[0272] A ceiling fan in which a motor assembly includes a non-rotating motor shaft and a rotatable housing portion that rotates about the non-rotating motor shaft.

[0273] A ceiling fan in which the blade hub and the rotatable housing portion are integrally formed.

[0274] A ceiling fan in which a motor assembly includes an upper motor housing and a lower motor housing, and one of the upper motor housing and the lower motor housing forms a rotatable housing portion.

[0275] A ceiling fan, wherein at least one blade mount includes a plurality of blade mounts radially spaced around a blade hub.

[0276] A ceiling fan in which the motor assembly includes a rotatable housing portion having a central hub and blade mounts extending radially from the hub.

[0277] A ceiling fan in which a motor assembly includes a non-rotating shaft and a hub surrounds and rotates about the non-rotating shaft.

[0278] A ceiling fan in which blade mounts extend radially from a motor shaft to selectively define a horizontal plane.

[0279] A ceiling fan in which fastener holes are oriented at an angle relative to the horizontal plane.

[0280] A ceiling fan wherein the angle is 20 degrees.

[0281] A ceiling fan in which blade mounts define a cylindrical cavity and fastener orifices extend radially from the cylindrical cavity.

[0282] A ceiling fan in which a saddle is adapted to anchor a blade support along a radial extension of a fastener hole.

[0283] A ceiling fan in which a motor assembly includes an upper motor housing and a lower motor housing, one of which forms a rotatable housing portion.

[0284] A ceiling fan in which the blade mount is integrally formed with one of the upper motor housing and the lower motor housing.

[0285] A ceiling fan in which at least one fastener is a fixing screw.

[0286] A ceiling fan in which the blade mount further includes an inlet, with a channel extending from the inlet to a pin hole.

[0287] A type of ceiling fan in which the saddle is aligned along a groove.

[0288] A ceiling fan, wherein at least one saddle comprises two saddles.

[0289] A ceiling fan assembly includes: a stator assembly having a non-rotating motor shaft and a stator slidably and non-rotatably 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 washer located between the first bearing and the stator assembly to fix a sliding position of the first bearing relative to the stator along the non-rotating motor shaft.

[0290] A ceiling fan assembly, in addition to a first bearing and a first washer, further includes a second bearing and a second washer located on opposite sides of the stator, the second bearing being slidably mounted to a non-rotating motor shaft, and the second washer being located between the second bearing and the stator.

[0291] A ceiling fan assembly in which a second bearing rotatably connects a rotor assembly to a stator assembly.

[0292] A ceiling fan assembly in which the stator is compressively held between a first gasket and a second gasket.

[0293] A ceiling fan assembly in which a first gasket and a second gasket are compressively held between a first bearing and a second bearing.

[0294] A ceiling fan assembly, wherein a rotor assembly is adjacent to at least one of a first bearing and a second bearing.

[0295] A ceiling fan assembly in which a rotor assembly is adjacent to both a first bearing and a second bearing.

[0296] A ceiling fan assembly, wherein the rotor assembly includes a housing adjacent to both a first bearing and a second bearing.

[0297] A ceiling fan assembly wherein the stator assembly is compressively held by at least one of a first gasket and a first bearing.

[0298] A ceiling fan assembly in which a first gasket is compressively held between a first bearing and a stator assembly.

[0299] A ceiling fan assembly in which a stator assembly is adjacent to a first bearing.

[0300] A ceiling fan assembly in which a first bearing is compressively held between a stator assembly and a first bearing.

[0301] A ceiling fan assembly, wherein the rotor assembly includes a housing that compressively holds a first bearing.

[0302] A ceiling fan assembly in which a non-rotating motor shaft has a shoulder and at least one of a first bearing and a first washer is adjacent to the shoulder.

[0303] A ceiling fan assembly in which a first bearing is adjacent to the shoulder.

[0304] A ceiling fan assembly in which a pad surrounds the shoulder.

[0305] A ceiling fan assembly in which gaskets are compressively held between a bearing and a stator.

[0306] A ceiling fan includes: a motor assembly having a rotating blade hub; at least one hub slot formed in the blade hub; a blade having a body having a blade slot and the body extending from a root to an end to define a cross-section of the body along a spanwise axis and a chordwise axis; and a support having a hub portion received in the hub slot and a blade portion received in the blade slot to connect the blade to the hub; wherein at least one of the blade portions is rotatably offset from the hub portion or the blade slot is rotatably offset from the blade, such that when the blade portion is received in the blade slot, the blade is set at an angle of attack relative to the chordwise axis.

[0307] A ceiling fan in which the hub slot has a horizontally oriented bottom wall.

[0308] A ceiling fan in which the blade portion is rotatably offset from the hub portion.

[0309] A ceiling fan in which the cross-sectional area of ​​the support column is not constant along the length of the support column.

[0310] A ceiling fan, wherein the hub slot includes a bottom wall and at least one fastener hole is formed in the bottom wall.

[0311] A ceiling fan in which the hub slot further includes a tapered wall between the bottom wall and the remainder of the blade hub.

[0312] A ceiling fan in which the hub slot further includes an opening at the end edge of the rotating blade hub.

[0313] A ceiling fan, wherein the hub slot further includes a neck and a throat defined at the junction of the mouth and the neck.

[0314] This written description uses examples to disclose the invention, including the best mode, and enables those skilled in the art to practice the invention, including making and using any device or system and performing any combined methods. The scope of the invention is defined by the claims, but may include other examples that may be conceived by those skilled in the art. Such other examples fall within the scope of the claims if they have structural elements that are not different from the verbatim description of the claims, or include equivalent structural elements that are not substantially different from the verbatim description of the claims.

Claims

1. A ceiling fan, comprising: A motor assembly having a hollow, non-rotating motor shaft and a motor housing; A retaining plate, including an opening and a recess adjacent to the opening, the retaining plate being positioned at the bottom of the motor housing; A retaining rod, connected to the retaining plate, passing through the opening and at least partially passing through the motor shaft, wherein the retaining rod has a cap that abuts the retaining plate at the opening to support the retaining plate; and A support cable terminates at a connecting fork, which is connected to the retaining rod and to the building suspending the motor assembly; The recess adjacent to the opening is configured to accommodate the cover.

2. The ceiling fan according to claim 1, wherein, The size of the cover is larger than the opening in the retaining plate.

3. The ceiling fan according to claim 1, wherein, The retaining rod is connected to the building on which the ceiling fan is suspended.

4. The ceiling fan according to claim 1, wherein, The retaining plate includes an interior and an exterior, with the interior rising above the exterior.

5. The ceiling fan according to claim 4, wherein, The external configuration is to support the motor assembly at the motor housing.

6. The ceiling fan according to claim 5, further comprising at least one mounting hole in the interior.

7. The ceiling fan according to claim 6, wherein, The motor shaft is mounted to the retaining plate at at least one mounting hole inside the motor shaft.

8. The ceiling fan according to claim 1, wherein, The support cable is connected to the retaining rod.

9. The ceiling fan according to claim 8, further comprising a suspension rod connected to the motor shaft, wherein, The support cable extends at least partially through the suspension rod.

10. The ceiling fan according to claim 8, wherein, The support cable terminates at a connecting fork, and the retaining rod terminates at a flat mounting end configured to be inserted into the connecting fork to connect the retaining rod to the support cable.

11. The ceiling fan according to claim 1, wherein, The retaining plate is configured to redundantly support the motor assembly.

12. A ceiling fan, comprising: A motor assembly having an annular hollow non-rotating motor shaft and a motor housing; A retaining plate is positioned at the bottom of the motor housing and completely below the motor shaft; as well as A retaining rod is connected to the retaining plate and extends at least partially along the motor shaft longitudinally and terminates at a flat mounting end; A support cable terminates at a connecting fork, which is connected to the retaining rod and to the building suspending the motor assembly; as well as A suspension rod, connected to the motor shaft, wherein the support cable extends at least partially through the suspension rod; The flat mounting end of the retaining rod is configured to be inserted into the connecting fork to connect the retaining rod to the support cable.

13. The ceiling fan according to claim 12, wherein, The retaining plate includes an opening, and the retaining rod passes through the opening.

14. The ceiling fan according to claim 13, wherein, The end of the retaining rod has a cap that abuts the retaining plate at the opening to support the retaining plate.

15. The ceiling fan according to claim 14, wherein, The size of the cover is larger than the opening in the retaining plate.

16. The ceiling fan according to claim 14, wherein, The retaining plate includes a recess adjacent to the opening in the retaining plate, the recess being configured to receive the cover.

17. The ceiling fan according to claim 12, wherein, The retaining rod is connected to the building that suspends the motor assembly.

18. The ceiling fan according to claim 12, wherein, The retaining plate includes an interior and an exterior, with the interior rising above the exterior.

19. A ceiling fan, comprising: Motor assembly, including stator, annular hollow non-rotating motor shaft and motor housing; A retaining plate is positioned at the bottom of the motor housing and inside the motor housing, and is located completely below the motor shaft; A retaining rod, connected to the retaining plate and passing at least partially along the motor shaft longitudinally; and The support cable terminates at a connecting fork, which is connected to the retaining rod and then to the building suspending the motor assembly. The retaining rod has a cap at its end, which is adjacent to the retaining plate to support the retaining plate.

20. The ceiling fan according to claim 19, wherein, The retaining plate includes an opening, and the retaining rod passes through the opening.

21. The ceiling fan according to claim 19, wherein, The retaining rod extends through the retaining plate, and the retaining plate is suspended on the cover.

22. The ceiling fan according to claim 19, wherein, The retaining rod is connected to the building on which the ceiling fan is suspended.

23. The ceiling fan according to claim 19, further comprising at least one mounting hole provided in the retaining plate.

24. The ceiling fan according to claim 19, wherein, The retaining plate is configured to redundantly support the motor assembly.

25. A ceiling fan, comprising: Motor assembly, including stator, annular hollow non-rotating motor shaft and motor housing; A retaining plate is positioned at the bottom of the motor housing and inside the motor housing, and is located completely below the motor shaft; A retaining rod, coupled to the retaining plate and passing at least partially along the motor shaft longitudinally, wherein the retaining rod has a cap; and The support cable terminates at a connecting fork, which is connected to the retaining rod and then to the building suspending the motor assembly. The retaining plate includes a recess configured to receive the cover.

26. A ceiling fan, comprising: Motor assembly, including stator, annular hollow non-rotating motor shaft and motor housing; A retaining plate is positioned at the bottom of the motor housing and inside the motor housing, and is located completely below the motor shaft; A retaining rod is connected to the retaining plate and passes at least partially through the motor shaft longitudinally. as well as The support cable terminates at a connecting fork, which is connected to the retaining rod and then to the building suspending the motor assembly. The retaining plate includes an inner and an outer portion, with the inner portion rising above the outer portion.

27. The ceiling fan according to claim 26, wherein, The external configuration is to support the motor assembly at the motor housing.

28. A ceiling fan, comprising: Motor assembly, including stator, annular hollow non-rotating motor shaft and motor housing; A retaining plate is positioned at the bottom of the motor housing and inside the motor housing, and is located completely below the motor shaft; A retaining rod is connected to the retaining plate and passes at least partially through the motor shaft longitudinally. as well as The support cable terminates at a connecting fork, which is connected to the retaining rod and then to the building suspending the motor assembly. The motor shaft is mounted to the retaining plate at at least one mounting hole.

29. A ceiling fan, comprising: Motor assembly, including stator, annular hollow non-rotating motor shaft and motor housing; A retaining plate is positioned at the bottom of the motor housing and inside the motor housing, and is located completely below the motor shaft; A retaining rod is connected to the retaining plate and passes at least partially through the motor shaft longitudinally. as well as A support cable is connected to the retaining rod, wherein the support cable terminates at a connecting fork, and the retaining rod terminates at a flat mounting end configured to be inserted into the connecting fork to connect the retaining rod to the support cable.

30. The ceiling fan of claim 29, further comprising a suspension rod connected to the motor shaft, wherein, The support cable extends at least partially through the suspension rod.

31. The ceiling fan according to claim 29, wherein, The support cable is connected to the building that suspends the motor assembly.

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