Oscillating return ceiling fan

Abstract

The invention discloses a head-shaking return ceiling fan and belongs to the technical field of ceiling fans. When the ceiling fan stops, a head-shaking motor rotates reversely and drives a gear to rotate reversely, the gear rotates reversely to drive a rack to move reversely, and a transmission part moves reversely along a sliding groove to drive a fan blade machine shell to move towards the rotating axis of a rotating disc, so that the fan blade machine shell and a fan blade assembly return to the vertical state; therefore, the aligning function is realized; therefore, according to the oscillating and aligning ceiling fan, the oscillating motor, the gear, the transmission piece and the fan blade shell are utilized to form the oscillating and aligning mechanism, the oscillating and aligning mechanism can achieve the oscillating function and the aligning function of the ceiling fan through the oscillating motor, the structure of the ceiling fan is more compact, space is saved, and cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of ceiling fan technology, and more particularly to an oscillating ceiling fan that can return to center. Background Technology

[0002] A ceiling fan is a fan fixed to the ceiling. It uses a motor to drive the blades, accelerating the flow of nearby air and blowing cool air downwards. To achieve a wider airflow range, existing technology includes ceiling fans that can oscillate. These fans oscillate at a fixed angle and maintain that angle even when the fan is turned off. However, they lack a return-to-vertical function; that is, they cannot return to a vertical position. Currently, to achieve this return-to-vertical function, ceiling fans are equipped with a tilting drive mechanism and a slewing drive mechanism. The tilting drive mechanism tilts the fan, while the slewing drive mechanism oscillates the tilted fan. When the fan needs to return to its vertical position, the tilting drive mechanism returns it to a vertical position.

[0003] However, in order to achieve the return-to-center function, the ceiling fan needs to be equipped with two different drive mechanisms, namely the tilt drive mechanism and the rotation drive mechanism, and the two drive mechanisms also need to cooperate with each other, resulting in a relatively bulky structure for the ceiling fan. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the above-mentioned related technologies and proposes an oscillating and returning ceiling fan. The oscillating and returning mechanism is composed of an oscillating motor, gears, transmission components, and fan blade housing. The oscillating and returning mechanism can realize the oscillating and returning functions of the ceiling fan using an oscillating motor, making the structure of the ceiling fan more compact, saving space, and reducing costs.

[0005] An oscillating ceiling fan according to an embodiment of the present invention includes: Base; A swing ring is hinged to the bottom of the base, and the swing ring rotates relative to the base about a front-rear axis; The fan blade housing is hinged to the swing ring. The fan blade housing rotates relative to the left and right axes of the swing ring. A transmission head is provided at the top of the fan blade housing. The fan blade assembly is disposed in the fan blade housing; A turntable is rotatably connected to the base. The turntable rotates around an upper and lower axis, and a groove is provided at the bottom of the turntable. A oscillating motor is located on the base; A gear is connected to the oscillating motor, which drives the gear to rotate around a vertical axis, and the axis of the gear coincides with the axis of the turntable. The transmission component has a rack at the top, a slider at the top of the rack, the slider being slidably disposed in the groove, the groove being parallel to the rack, the rack meshing with the gear, and a transmission hole at the bottom of the transmission component, the transmission hole being movably engaged with the transmission head.

[0006] The oscillating ceiling fan according to embodiments of the present invention has at least the following beneficial effects: the oscillating motor rotates forward and drives the gear to rotate forward, the gear rotation drives the rack to move forward, and the slider at the top of the rack moves forward along the slide groove. The transmission component moves forward along the slide groove, causing the transmission hole of the transmission component to drive the transmission head of the fan blade housing to move, thereby tilting the fan blade housing relative to the rotation axis of the turntable. That is, the fan blade housing and fan blade assembly are in an inclined state. The oscillating motor continues to drive the gear to rotate forward. Since the forward movement of the slider is restricted at the end of the slide groove, the gear, rack, transmission component, and turntable rotate synchronously in the forward direction. The transmission hole and transmission head are in a movable fit, so the fan blade housing will oscillate around the left and right axes relative to the rotation. The rotating and oscillating ring rotates relative to the base around the front and rear axes, allowing the fan blade housing and fan blade assembly to oscillate 360° at an angle. When the ceiling fan stops, the oscillating motor reverses and drives the gear to reverse as well. The reverse gear drives the rack to move in the opposite direction, and the transmission component moves in the opposite direction along the slide groove, causing the transmission component to drive the fan blade housing to move towards the rotation axis of the turntable, thus restoring the fan blade housing and fan blade assembly to a vertical state and achieving the return-to-center function. Therefore, the oscillating and return-to-center ceiling fan of this embodiment uses an oscillating motor, gear, transmission component, and fan blade housing to form an oscillating and return-to-center mechanism. The oscillating and return-to-center mechanism can achieve the oscillating and return-to-center functions of the ceiling fan using only an oscillating motor, making the structure of the ceiling fan more compact, saving space, and reducing costs.

[0007] According to some embodiments of the present invention, the oscillating ceiling fan further includes: Ferromagnetic material, connected to the turntable; A magnet is disposed on the base, and the magnet and the ferromagnet attract each other.

[0008] According to some embodiments of the present invention, the ferromagnetic body is arranged around the circumference of the turntable.

[0009] According to some embodiments of the present invention, the transmission head is rotatably connected to the transmission hole, and the two ends of the slide groove are respectively a swing end and a return end; When the slider abuts against the swing end, the rotation axis of the transmission head intersects the rotation axis of the turntable at an inclination. When the slider abuts against the return end, the rotation axis of the transmission head coincides with the rotation axis of the turntable.

[0010] According to some embodiments of the present invention, when the slider abuts against the swing end, the angle between the rotation axis of the transmission head and the rotation axis of the turntable is 5° to 25°.

[0011] According to some embodiments of the present invention, the bottom of the turntable is provided with a first arc surface, the axial direction of the first arc surface is perpendicular to the moving direction of the transmission member, and the top of the transmission member is provided with a second arc surface, the second arc surface cooperates with the first arc surface to make the transmission member move along the first arc surface.

[0012] According to some embodiments of the present invention, the bottom of the transmission member is provided with a third arc surface, the shape of the third arc surface corresponding to the shape of the second arc surface, and the oscillating ceiling fan further includes: The pressure block is detachably connected to the bottom of the transmission component. The top of the pressure block is provided with a fourth arc surface, which cooperates with the third arc surface.

[0013] According to some embodiments of the present invention, the oscillating ceiling fan further includes: The housing has an internal mounting cavity with a through hole at the bottom. The base, the swing ring, the turntable, the oscillating motor, the gear, and the transmission component are located in the mounting cavity. The fan blade housing extends from the mounting cavity below the through hole.

[0014] According to some embodiments of the present invention, a connecting frame is further provided on the outside of the housing, the connecting frame extending outward and downward, and the oscillating ceiling fan further includes: A ring light is connected to the bottom of the connecting frame. The ring light has a through hole in the middle, and the fan blade assembly is located in the through hole. The ring light avoids the movement trajectory of the fan blade assembly.

[0015] According to some embodiments of the present invention, the top of the fan blade housing is provided with a wire channel extending circumferentially along the fan blade housing; the fan blade assembly is provided with an electrical connection wire extending upward from the wire channel; and the oscillating ceiling fan further includes: A circuit board is located on top of the base, and the circuit board is electrically connected to the electrical connection wire and the oscillating motor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an oscillating and straightening ceiling fan according to an embodiment of the present invention; Figure 2 This is a cross-sectional schematic diagram of an oscillating and straightening ceiling fan according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the disassembly of the housing of a oscillating and repositioning ceiling fan according to an embodiment of the present invention; Figure 4 This is a schematic diagram showing the cooperation of the base, turntable, and transmission component in one embodiment of the present invention; Figure 5This is a cross-sectional schematic diagram of the base, turntable, and transmission component after they are assembled in one embodiment of the present invention; Figure 6 This is a cross-sectional schematic diagram of the gear and transmission component after they are engaged in one embodiment of the present invention; Figure 7 This is a cross-sectional view of the base, turntable and transmission component along the slide groove in one embodiment of the present invention; Figure 8 This is a schematic diagram of the transmission component in one embodiment of the present invention; Figure 9 This is a schematic diagram of the turntable structure in one embodiment of the present invention.

[0017] Reference numerals: Base 100, Hanging rod 110, Swing ring 120, Fan blade housing 130, Transmission head 131, Wire groove 132, Fan blade assembly 200, Turntable 300, Slide groove 310, Swing end 311, Return end 312, First arc surface 320, Shaft hole 330, Bearing 340, Oscillating motor 400, Gear 410, Transmission component 500, Rack 510, Slider 520, Transmission hole 530, Second arc surface 540, Third arc surface 550, Ferromagnetic body 600, Magnet 610, Pressure block 700, Fourth arc surface 710, Housing 800, Mounting cavity 810, Through hole 820, Connecting bracket 830, Ring light 840, Alternating hole 841, Circuit board 900. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this invention, it should be understood that the terms front, back, up, down, axial, circumferential, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] In the description of this invention, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this invention, it should be noted that terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0022] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are some embodiments of the present invention, not all embodiments.

[0023] As people's living standards continue to improve, there are higher demands for home decoration applications. Traditional ceiling fans are mainly used for heat dissipation and cooling, but many are now combined with other products, such as chandeliers, to create chandelier fans, which are both beautiful and practical. However, this is not perfect. Most existing oscillating fan mechanisms can only oscillate back and forth, and when they stop, the fan does not return to its upright position, remaining tilted and affecting the appearance. In the home decoration industry, people want to combine them with ceiling lights, wanting them to serve as both a good daily cooling device and a distinctive feature of the home. This requires achieving stable oscillation with a dynamic decorative effect, stable oscillation speed and airflow, and automatic return to the upright position to ensure aesthetic appeal when static. Some solutions add two adjustable motors to achieve this, but this introduces a series of problems: not only is the mechanism more complex, but costs and size increase, but the probability of malfunctions also increases. Optimizing these issues would offer significant room for improvement.

[0024] In view of the shortcomings of existing technologies, the purpose of this invention is to provide an oscillating and self-centering ceiling fan, aiming to solve the problem that existing technologies require multiple motors to achieve stable oscillation and self-centering functions. It also addresses the practicality issue of ceiling fan lights in the home decoration industry, allowing them to maximize their functionality. The control system of the ceiling fan light also features a highly integrated design, perfectly fitting the circuit board and fan housing, making full use of structural space, reducing size and weight, and providing a more harmonious overall aesthetic proportion. This not only makes control more stable and efficient but also facilitates assembly and maintenance.

[0025] Reference Figures 1 to 9 As shown, the present invention provides an oscillating and aligning ceiling fan.

[0026] The oscillating ceiling fan includes a base 100, an oscillation ring 120, a fan blade housing 130, a fan blade assembly 200, a turntable 300, an oscillation motor 400, a gear 410, a transmission component 500, a ferromagnetic body 600, two magnets 610, two pressure blocks 700, a housing 800, and a circuit board 900.

[0027] The base 100 has two downward-extending rods 110 at its bottom, which are arranged opposite each other. The swing ring 120 is located below the base 100. The bottom ends of the two rods 110 are hinged to the front and rear sides of the swing ring 120, so that the swing ring 120 can rotate around the front and rear axis.

[0028] The swing ring 120 is circular in shape, and the middle of the swing ring 120 has an inner hole that runs vertically through it. The fan blade housing 130 is set in the inner hole of the swing ring 120. The left and right sides of the fan blade housing 130 are respectively hinged to the swing ring 120, so that the fan blade housing 130 rotates around the left and right axes. The rotation axis of the fan blade housing 130 and the rotation axis of the swing ring 120 are located on the same plane, and the rotation axis of the fan blade housing 130 is perpendicular to and intersects the rotation axis of the swing ring 120.

[0029] A transmission head 131 is provided on the top of the fan blade housing 130. The transmission head 131 is a cylinder. The axis of the transmission head 131 intersects the rotation axis of the fan blade housing 130 and the rotation axis of the swing ring 120.

[0030] The fan blade assembly 200 includes a fan motor, fan blades, and a protective cover. The fan motor is located inside the fan blade housing 130. The top of the fan blade housing 130 is provided with a through wire groove 132. The wire groove 132 is offset from the transmission head 131 and extends circumferentially along the transmission head 131. The fan motor is provided with an electrical connection wire, which passes through the wire groove 132 and extends above the fan blade housing 130.

[0031] The output shaft of the fan motor extends below the fan blade housing 130, and the fan blades are connected to the output shaft of the fan motor. Thus, the fan motor drives the fan blades to rotate below the fan blade housing 130. The top of the protective cover is connected to the bottom of the fan blade housing 130, and the protective cover covers the outer periphery of the fan blades.

[0032] Therefore, the fan blade housing 130 and the fan blade assembly 200 can rotate relative to the swing ring 120 around the left and right axes, and the fan blade housing 130, the fan blade assembly 200 and the swing ring 120 can rotate relative to the boom 110 around the front and rear axes, thereby enabling the fan blade assembly 200 to swing at an angle.

[0033] The base 100 has a mounting hole that runs through the vertical direction in the middle. The oscillating motor 400 is located on the top of the base 100, and the output shaft of the oscillating motor 400 extends out below after passing through the mounting hole.

[0034] The top of the turntable 300 is provided with an upwardly extending mounting cylinder, which is rotatably mounted in the mounting hole. A bearing 340 is provided between the outer side wall of the mounting cylinder and the inner side wall of the mounting hole, so that the turntable 300 can rotate relative to the base 100 around the vertical axis. The middle part of the mounting cylinder is provided with a vertically penetrating shaft hole 330, which is located directly below the mounting hole. The output shaft of the oscillating motor 400 passes through the shaft hole 330 and extends out below the turntable 300. The output end of the oscillating motor 400 is connected to a gear 410, which is located below the turntable 300. The oscillating motor 400 drives the gear 410 to rotate.

[0035] The bottom of the turntable 300 is provided with a first arc surface 320. The axis of the first arc surface 320 is set in the horizontal direction. The axis of the first arc surface 320 and the rotation axis of the fan blade housing 130 are located on the same plane. The top of the first arc surface 320 is provided with two sliding grooves 310. The two sliding grooves 310 are symmetrically arranged on two opposite sides of the shaft hole 330. The sliding grooves 310 extend along the arc direction of the first arc surface 320. The two ends of the sliding grooves 310 are the swing end 311 and the return end 312, respectively. The distance from the swing end 311 to the shaft hole 330 is greater than the distance from the return end 312 to the shaft hole 330.

[0036] The top of the turntable 300 is also equipped with an assembly cylinder, which is located around the mounting cylinder. The axis of the assembly cylinder coincides with the output shaft axis of the oscillating motor 400. The ferromagnetic body 600 is ring-shaped and is fitted around the assembly cylinder. The ferromagnetic body 600 rotates synchronously with the assembly cylinder. Two magnets 610 are installed at the bottom of the base 100. The two magnets 610 are distributed on two opposite sides of the output shaft of the oscillating motor 400. The two magnets 610 are located around the ferromagnetic body 600. There is a gap between each magnet 610 and the ferromagnetic body 600. Each magnet 610 and the ferromagnetic body 600 are magnetically attracted to each other.

[0037] The transmission component 500 is disposed between the turntable 300 and the fan blade housing 130. The top of the transmission component 500 is provided with a rack 510 and a support block. The rack 510 and the support block are respectively disposed on two opposite sides of the gear 410. The rack 510 meshes with the gear 410, and the support block is offset from the gear 410.

[0038] The top surface of the rack 510 and the support block is provided with a second arc surface 540. The shape of the second arc surface 540 corresponds to the shape of the first arc surface 320 at the bottom of the turntable 300. The second arc surface 540 abuts against the first arc surface 320, causing the transmission component 500 to move along the first arc surface 320 at the bottom of the turntable 300.

[0039] The top of the rack 510 and the support block are respectively provided with upward protruding sliders 520. The sliders 520 are slidably disposed in the two grooves 310 one by one. The sliders 520 slide along the grooves 310 to limit the sliding direction of the transmission component 500.

[0040] The bottom of the transmission component 500 is provided with a transmission hole 530, which cooperates with the transmission head 131 of the fan blade housing 130. The transmission head 131 can rotate relative to the transmission hole 530.

[0041] When the slider 520 abuts against the swing end 311, the rotation axis of the transmission head 131 intersects the rotation axis of the turntable 300 at an angle of 5° to 25°. In this embodiment, the angle between the rotation axis of the transmission head 131 and the rotation axis of the turntable 300 is 10° to 15°, thereby causing the fan blade housing 130 and the fan blade assembly 200 to be in an inclined state. When the slider 520 abuts against the return end 312, the rotation axis of the transmission head 131 coincides with the rotation axis of the turntable 300, thereby causing the fan blade housing 130 and the fan blade assembly 200 to be in a vertical state.

[0042] The slider 520 is limited by the swing end 311 and the return end 312 of the slide groove 310, so as to ensure that the transmission component 500 drives the transmission head 131 to switch to the tilt state or return to the vertical state.

[0043] The angle of the transmission head 131 after the transmission component 500 drives it to tilt is limited to avoid the tilt angle of the fan blade housing 130 being too large and affecting the overall size of the ceiling fan.

[0044] Two pressure blocks 700 are respectively positioned below the two sliders 520 of the transmission component 500. The two pressure blocks 700 are respectively connected to the bottom of the turntable 300 by screws. The bottom of the transmission component 500 is provided with a third arc surface 550 corresponding to the position of the pressure block 700. The shape of the third arc surface 550 corresponds to the shape of the second arc surface 540. The top of each pressure block 700 is provided with a fourth arc surface 710. The fourth arc surface 710 cooperates with the third arc surface 550 so that the fourth arc surface 710 on the top of the pressure block 700 supports the transmission component 500, and the transmission component 500 can slide along the fourth arc surface 710.

[0045] The first arc surface 320 and the second arc surface 540 are set so that the transmission component 500 moves relative to the turntable 300 along the arc surface, which better matches the swinging action of the fan blade housing 130 and makes the oscillation action of the fan blade housing 130 smoother.

[0046] The fourth arc surface 710 of the pressure block 700 supports the third arc surface 550 of the transmission component 500, preventing the transmission component 500 from directly pressing down on the transmission head 131 of the fan blade housing 130. This helps the transmission component 500 drive the transmission head 131 more smoothly and avoids the transmission component 500 hindering the rotation of the transmission head 131.

[0047] The circuit board 900 is located on the top of the base 100. The circuit board 900 is electrically connected to the oscillating motor 400. The electrical connection wire of the fan motor passes through the wire groove 132 and extends upward. The base 100 is provided with a through-hole. The electrical connection wire of the fan motor passes through the through-hole. The circuit board 900 is electrically connected to the electrical connection wire.

[0048] The housing 800 has an internal mounting cavity 810. The bottom of the mounting cavity 810 has a through hole 820 that extends downwards. The base 100 is located in the mounting cavity 810. The circuit board 900, the oscillating motor 400, the hanging rod 110, the swing ring 120, the turntable 300, the transmission component 500, the ferromagnetic body 600, and the magnet 610 are all located in the mounting cavity 810. The fan blade housing 130 extends downwards from the mounting cavity 810 below the through hole 820. The protective cover and fan blades of the fan blade assembly 200 are located below the housing 800.

[0049] The housing 800 protects important components such as the swing ring 120, turntable 300, and transmission component 500 inside, preventing foreign objects from entering between the transmission component 500 and the turntable 300 and affecting the transmission effect.

[0050] The circuit board 900 is protected above the base 100 by the housing 800.

[0051] Three connecting brackets 830 are provided on the outer side wall of the housing 800. The three connecting brackets 830 are arranged in a circular array along the circumference of the housing 800. Each connecting bracket 830 extends outward and downward. The bottom of the three connecting brackets 830 is connected to a ring light 840. The ring light 840 is circular. A vertically penetrating clearance hole 841 is provided in the middle of the ring light 840. The protective cover and fan blades of the fan blade assembly 200 are movably disposed in the clearance hole 841, so that the fan blade assembly 200 can oscillate 360° in the clearance hole 841 at a set tilt angle.

[0052] The oscillating motor 400 rotates forward and drives the gear 410 to rotate forward. The gear 410 rotates forward and drives the rack 510 to move forward. The slider 520 at the top of the rack 510 moves forward along the slide groove 310. The transmission component 500 moves forward along the slide groove 310, causing the transmission hole 530 of the transmission component 500 to drive the transmission head 131 of the fan blade housing 130 to move. This causes the fan blade housing 130 to tilt relative to the rotation axis of the turntable 300. That is, the fan blade housing 130 and the fan blade assembly 200 are in an inclined state. The oscillating motor 400 continues to drive... When gear 410 rotates in the forward direction, and slider 520 is restricted from moving forward to the end of slide groove 310, gear 410, rack 510, transmission component 500 and turntable 300 rotate synchronously in the forward direction. Transmission hole 530 and transmission head 131 are in movable engagement. Therefore, fan blade housing 130 will rotate around the left and right axis relative to swing ring 120, and swing ring 120 will rotate around the front and rear axis relative to base 100, so that fan blade housing 130 and fan blade assembly 200 can swing 360° at an inclined angle.

[0053] When the ceiling fan stops, the oscillating motor 400 reverses and drives the gear 410 to reverse. The reverse rotation of the gear 410 drives the rack 510 to move in the opposite direction. The transmission component 500 moves in the opposite direction along the slide groove 310, causing the transmission component 500 to drive the fan blade housing 130 to move towards the rotation axis of the turntable 300, so that the fan blade housing 130 and the fan blade assembly 200 return to the vertical state, thereby realizing the return-to-center function.

[0054] Therefore, the oscillating and returning ceiling fan of this embodiment uses an oscillating motor 400, a gear 410, a transmission component 500, and a fan blade housing 130 to form an oscillating and returning mechanism. The oscillating and returning mechanism can realize the oscillating and returning functions of the ceiling fan using the oscillating motor 400, making the structure of the ceiling fan more compact, saving space, and reducing costs.

[0055] By using a single oscillating motor 400 and smaller gears 410, turntable 300, and transmission components 500, the oscillating and returning ceiling fan can achieve stable operation and return to center. This reduces production and maintenance costs, allowing it to be better integrated into home decoration products and market, and enabling practical functional verification of its products, thus providing more possibilities for the market.

[0056] Combining a ceiling fan, a stable oscillation / return mechanism, and lighting fixtures creates a completely new "home air conditioning and lighting center." This precisely addresses modern consumers' comprehensive needs for comfortable and healthy living, efficient space utilization, intelligent control, and home aesthetics. In the future smart home ecosystem, this "environmental control center" product is likely to become a standard feature in living rooms and bedrooms, its value far exceeding that of traditional single-function appliances.

[0057] In this embodiment, the ferromagnet 600 and the magnet 610 are magnetically attracted to each other. During the process of the turntable 300 driving the ferromagnet 600 to move relative to the magnet 610, since the ferromagnet 600 is approximately a conductor, when the ferromagnet 600 moves in the magnetic field of the magnet 610, the ferromagnet 600 generates an induced current. The induced current will cause the ferromagnet 600 to be subjected to an Ampere force. The direction of the Ampere force always opposes the movement of the ferromagnet 600, so that electromagnetic damping is formed between the ferromagnet 600 and the magnet 610.

[0058] When the oscillating motor 400 drives the gear 410 to rotate in the forward direction, causing the transmission component 500 to drive the turntable 300 to rotate in the forward direction, the electromagnetic damping between the ferromagnetic body 600 and the magnet 610 will generate resistance to the forward rotation of the turntable 300, which helps the forward rotation of the turntable 300 to be more stable, thereby making the oscillating motion of the fan blade housing 130 and the fan blade assembly 200 more stable.

[0059] When the oscillating motor 400 drives the gear 410 to rotate in the opposite direction, the electromagnetic damping between the ferromagnet 600 and the magnet 610 will generate resistance to the reverse rotation of the turntable 300, preventing the turntable 300 from rotating. Meanwhile, the gear 410 drives the transmission component 500 to rotate in the opposite direction, causing the transmission component 500 to move relative to the turntable 300 and return to the vertical state as soon as possible, ensuring that the fan blade housing 130 and the fan blade assembly 200 complete the return-to-center function as quickly as possible.

[0060] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A ceiling fan that can rotate from oscillation to center, characterized in that, include: Base; A swing ring is hinged to the bottom of the base, and the swing ring rotates relative to the base about a front-rear axis; The fan blade housing is hinged to the swing ring. The fan blade housing rotates relative to the left and right axes of the swing ring. A transmission head is provided at the top of the fan blade housing. The fan blade assembly is disposed in the fan blade housing; A turntable is rotatably connected to the base. The turntable rotates around an upper and lower axis, and a groove is provided at the bottom of the turntable. A oscillating motor is located on the base; A gear is connected to the oscillating motor, which drives the gear to rotate around a vertical axis, and the axis of the gear coincides with the axis of the turntable. The transmission component has a rack at the top, a slider at the top of the rack, the slider being slidably disposed in the groove, the groove being parallel to the rack, the rack meshing with the gear, and a transmission hole at the bottom of the transmission component, the transmission hole being movably engaged with the transmission head.

2. The oscillating ceiling fan according to claim 1, characterized in that, The oscillating ceiling fan also includes: Ferromagnetic material, connected to the turntable; A magnet is disposed on the base, and the magnet and the ferromagnet attract each other.

3. The oscillating ceiling fan according to claim 2, characterized in that, The ferromagnetic object surrounds the circumference of the turntable.

4. The oscillating ceiling fan according to claim 1, characterized in that, The transmission head is rotatably connected to the transmission hole, and the two ends of the slide groove are the swing end and the return end, respectively. When the slider abuts against the swing end, the rotation axis of the transmission head intersects the rotation axis of the turntable at an inclination. When the slider abuts against the return end, the rotation axis of the transmission head coincides with the rotation axis of the turntable.

5. The oscillating ceiling fan according to claim 4, characterized in that, When the slider abuts against the swing end, the angle between the rotation axis of the transmission head and the rotation axis of the turntable is 5° to 25°.

6. The oscillating ceiling fan according to claim 1, characterized in that, The bottom of the turntable is provided with a first arc surface, the axis of which is perpendicular to the moving direction of the transmission component. The top of the transmission component is provided with a second arc surface, which cooperates with the first arc surface to make the transmission component move along the first arc surface.

7. The oscillating ceiling fan according to claim 6, characterized in that, The bottom of the transmission component is provided with a third arc surface, the shape of which corresponds to the shape of the second arc surface. The oscillating ceiling fan also includes: The pressure block is detachably connected to the bottom of the transmission component. The top of the pressure block is provided with a fourth arc surface, which cooperates with the third arc surface.

8. The oscillating ceiling fan according to claim 1, characterized in that, The oscillating ceiling fan also includes: The housing has an internal mounting cavity with a through hole at the bottom. The base, the swing ring, the turntable, the oscillating motor, the gear, and the transmission component are located in the mounting cavity. The fan blade housing extends from the mounting cavity below the through hole.

9. The oscillating ceiling fan according to claim 8, characterized in that, The outer surface of the housing is also provided with a connecting frame, which extends outward and downward. The oscillating ceiling fan also includes: A ring light is connected to the bottom of the connecting frame. The ring light has a through hole in the middle, and the fan blade assembly is located in the through hole. The ring light avoids the movement trajectory of the fan blade assembly.

10. The oscillating ceiling fan according to claim 8, characterized in that, The top of the fan blade housing is provided with a wire channel, which extends circumferentially along the fan blade housing. The fan blade assembly is provided with an electrical connection wire, which extends upward from the wire channel. The oscillating ceiling fan also includes: A circuit board is located on top of the base, and the circuit board is electrically connected to the electrical connection wire and the oscillating motor.

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