CN109751267B - Ceiling magnetic suspension fan blade - Google Patents
Ceiling magnetic suspension fan blade Download PDFInfo
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- CN109751267B CN109751267B CN201910116812.5A CN201910116812A CN109751267B CN 109751267 B CN109751267 B CN 109751267B CN 201910116812 A CN201910116812 A CN 201910116812A CN 109751267 B CN109751267 B CN 109751267B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The embodiment of the invention provides a ceiling magnetic suspension fan, which comprises: the magnetic suspension device comprises a motor (1), a magnetic suspension assembly (3), an annular permanent magnet (5) and fan blades (4); the annular permanent magnet (5) is connected below the motor (1); the magnetic suspension assembly (3) is suspended above the annular permanent magnet (5) through magnetic repulsion, and the magnetic suspension assembly (3) is connected with the motor (1) and driven by the motor (1) to rotate; the fan blade (4) is connected to the magnetic suspension assembly (3). The magnetic levitation component and the fan blade are levitated above the annular permanent magnet through magnetic repulsion, the gravity of the magnetic levitation component and the fan blade is balanced by magnetic repulsion between the annular permanent magnet and the magnetic levitation component, the vibration of the fan blade is not transmitted to the motor, the motor only needs to provide torque required by rotation, the output power of the motor is small, the noise generated by the motor is also reduced, and the rotation stability is improved.
Description
Technical Field
The invention relates to a fan, in particular to a ceiling magnetic suspension fan blade.
Background
Ceiling fans are fans that are secured to a ceiling, and conventional ceiling fans typically mount the blades directly to a motor.
In the process of implementing the present invention, the inventor finds that at least the following problems exist in the prior art:
traditional ceiling fan, the flabellum is installed on the motor, and when the flabellum rotated, the motor needed to provide the flabellum and rotates required moment of torsion, also needed to bear the gravity of flabellum simultaneously, so the motor can produce great noise, has reduced the travelling comfort. When the ceiling fan is switched on and off, the whole ceiling fan is unbalanced due to the inertia effect to shake, the stability is poor, and the safety coefficient is reduced.
Disclosure of Invention
The embodiment of the invention provides a ceiling magnetic suspension fan blade, which balances the gravity of the fan blade through magnetic repulsion, can reduce the bearing load of a motor, has good vibration balance performance of the fan blade of the switching machine, and has low noise and high comfort level.
The embodiment of the invention provides a ceiling magnetic suspension fan blade, which comprises: the device comprises a motor, a magnetic suspension assembly, an annular permanent magnet and fan blades; the annular permanent magnet is connected below the motor; the magnetic suspension assembly is suspended between the annular permanent magnet and the motor through magnetic repulsion, is connected with the motor and is driven by the motor to rotate; the fan blade is connected to the magnetic suspension assembly.
The technical scheme has the following beneficial effects: the magnetic levitation component has single magnetism relative to one end of the annular permanent magnet, the annular permanent magnet has single magnetism relative to one end of the annular permanent magnet and can repel each other, and according to the principle of like polarity repulsion, the magnetic levitation component and the fan blade can suspend above the annular permanent magnet, so that the gravity of the magnetic levitation component and the fan blade is balanced by the magnetic repulsive force between the annular permanent magnet and the magnetic levitation component, and the magnetic levitation component and the fan blade suspend at a preset reference position (a preset reference position, namely the position where the central axis of the annular permanent magnet is located) above the annular permanent magnet. The gravity of the fan blade does not need to be loaded on the motor, and a rotating mechanism is not needed to be additionally arranged for the fan blade, so that when the ceiling magnetic suspension fan works, the magnetic suspension assembly and the fan blade only need the motor to provide torque required by rotation for the fan blade, the fan blade can freely and horizontally rotate, the air volume generated by high-speed rotation can be achieved, and the user requirements are met. The motor no longer needs to provide the gravity support of flabellum, and the flabellum vibration also can not transmit for the motor when switching on and shutting down simultaneously, so motor output diminishes compared with traditional ceiling fan, and the noise that the motor produced also diminishes, and the unbalanced rotation of during operation motor itself also can reduce, and rotation stability is good, improves user's use comfort. When the ceiling magnetic suspension fan stops working, the fan blades are in a static state in the horizontal direction under the magnetic force generated by the annular permanent magnet and the magnetic suspension component, and the motor is not required to bear the weight of the fan blades, so that the requirement on the bearing capacity of the ceiling is reduced, and the use safety coefficient of the fan is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front cross-sectional view of a ceiling maglev fan in accordance with an embodiment of the present invention;
FIG. 2 is an exploded isometric view of a ceiling magnetic levitation fan according to an embodiment of the present invention;
FIG. 3 is an isometric view of a ceiling magnetic levitation fan according to an embodiment of the present invention;
FIG. 4 is a schematic isometric view of the installation of an annular permanent magnet and electromagnet according to an embodiment of the present invention;
fig. 5 is a cross-sectional view of fig. 4.
The reference numerals are expressed as:
1. a motor; 3. a magnetic levitation assembly; 4. a fan blade; 5. an annular permanent magnet; 6. a mounting frame; 7. an electromagnet; 8. a sensor; 10. a lamp; 11. an output shaft; 21. a torque transmitting device; 22. a magnetic levitation assembly drive rod; 31. a first permanent magnet; 32. a magnetic conduction fan blade mounting plate; 61. a connecting pipe; 62. a cover body; 63. and (5) connecting a plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 5, in combination with an embodiment of the present invention, the present invention provides a ceiling magnetic suspension fan, including: the magnetic suspension device comprises a motor 1, a magnetic suspension assembly 3, an annular permanent magnet 5 and fan blades 4; the annular permanent magnet 5 is connected below the motor 1; the magnetic levitation component 3 is levitated between the annular permanent magnet 5 and the motor 1 through magnetic repulsion, and the magnetic levitation component 3 is connected with the motor 1 and driven by the motor 1 to rotate; the fan blade 4 is connected to the magnetic suspension assembly 3.
It will be appreciated that the end of the magnetically levitated element 3 opposite the annular permanent magnet 5 has a single magnetic property and the end of the annular permanent magnet 5 opposite the magnetically levitated element 3 has a single magnetic property and is capable of being repulsed from each other (i.e. the magnetic properties of the upper surface of the annular permanent magnet 5 are opposite to the magnetic properties of the lower surface of the magnetically levitated element 3). Illustrating: the upper annular surface of the annular permanent magnet 5 has a magnetism of S, and there must be a region of magnetism N formed by the annular permanent magnet 5 near the center line above the annular permanent magnet 5. The magnetic levitation component 3 is arranged in the region of the annular permanent magnet 5 with the magnetism of N, and the end face of the magnetic levitation component 3, which faces the annular permanent magnet 5, is set as an N pole. So according to the principle of like poles repel, the magnetic levitation component 3 and the fan blade 4 can levitate above the annular permanent magnet 5, so that the gravity of the magnetic levitation component 3 and the fan blade 4 is balanced by the magnetic repulsive force between the annular permanent magnet 5 and the magnetic levitation component 3, and the magnetic levitation component 3 and the fan blade 4 are levitated at a preset reference position above the annular permanent magnet 5 (a preset reference position, namely, the position of the central axis of the annular permanent magnet 5). Of course, the combined weights of the magnetic suspension assembly 3 and the fan blades 4 are different, and the distances between the magnetic suspension assembly 3 and the annular permanent magnets 5 are also different. For example, the fan blade 4 can bear 2.5-3 kg of weight, and the amount of the fan blade can be determined according to the material of the annular permanent magnet 5, the number of coils or the magnetizing amount.
Therefore, the gravity of the fan blade 4 does not need to be loaded on the motor 1, and meanwhile, a rotating mechanism is not needed to be additionally arranged for the fan blade 4, the fan blade 4 can be directly connected to the magnetic suspension assembly 3, and can also be connected to the magnetic suspension assembly 3 through a fork connector, wherein the fan blade 4 can be made of different materials and have different structural shapes. The motor 1 may drive the magnetic levitation assembly 3 through different connection means such that the magnetic levitation assembly 3 and the fan blades 4 can rotate clockwise or counterclockwise. When the ceiling magnetic suspension fan works, the magnetic suspension assembly 3 and the fan blades 4 only need the motor 1 to provide torque required by rotation for the ceiling magnetic suspension fan, the fan blades 4 can rotate freely and horizontally, the air volume generated by high-speed rotation can be achieved, and the user requirements are met. The motor 1 no longer needs to provide the gravity support of flabellum 4, and motor 1 output diminishes relative traditional ceiling fan, and the flabellum vibration also can not transmit for the motor when switching on and shutting down simultaneously, so the noise that motor 1 produced also diminishes, and the unbalanced rotation of during operation motor 1 itself also can reduce, and rotation stability is good, improves user's use comfort. When the ceiling magnetic suspension fan stops working, the fan blades 4 are in a static state in the horizontal direction under the magnetic force generated by the annular permanent magnet 5 and the magnetic suspension assembly 3, and the motor is not required to bear the weight of the fan blades, so that the requirement on the bearing force of the ceiling is reduced, and the use safety coefficient of the fan is improved.
The ceiling magnetic suspension fan blade also comprises a mounting device for fixing on the ceiling, and the magnetic suspension fan blade is used as the prior art and is not described herein.
Preferably, as a preferred embodiment of the motor 1 driving the fan blades 4, the ceiling magnetic levitation fan further comprises a torque transmission device 21 and a magnetic levitation assembly driving rod 22 connected below the torque transmission device 21; the torque transmitting device 21 is connected to the electric machine 1; the torque transmission device 21 drives the magnetic levitation component driving rod 22 to drive the magnetic levitation component 3 to rotate, and the magnetic levitation component 3 can float up and down relative to the magnetic levitation component driving rod 22. As can be appreciated, when the ceiling magnetic suspension fan works, the motor 1 transmits torque to the torque transmission device 21 through rotation of the shell, so that the torque transmission device 21 rotates, then the rotation is transmitted to the magnetic suspension assembly 3 through the magnetic suspension assembly driving rod 22, the magnetic suspension assembly 3 drives the fan blades 4 to rotate, and the fan blades 4 rotate to enable air to flow, so that a large amount of wind is generated. In the rotation process of the ceiling magnetic suspension fan blade, due to the working characteristics of the fan blade 4, when downward wind power is generated, the magnetic suspension assembly 3 and the fan blade 4 are caused to generate upward displacement; when upward wind force is generated, the magnetic suspension assembly 3 and the fan blades 4 are caused to generate downward displacement, so that the magnetic suspension assembly driving rod 22 is provided with a space for the magnetic suspension assembly 3 to float up and down, and meanwhile, the lower end of the magnetic suspension assembly driving rod 22 and the torque transmission device 21 are provided with limiters for limiting the vertical displacement of the suspension fan blades not to exceed a preset amplitude so as to meet the normal working requirement of the ceiling magnetic suspension fan blades, and meanwhile, the magnetic suspension assembly 3 is prevented from falling off the fan blades 4 due to vertical overturning.
Because of the magnetic characteristics of the magnetic levitation component 3, the magnetic field changes, and the magnetic repulsive force is different for the same fan blade combination, so the magnetic levitation component 3 has mobility in the circumferential direction of the magnetic levitation component driving rod 22; in addition, the different fan blades have different weights, and the distance between the magnetic suspension assembly 3 and the annular permanent magnet 5 is also different, so that the magnetic suspension assembly 3 can float up and down relative to the magnetic suspension assembly driving rod 22, and the requirements of installing different types of fan blades are met. The distance that the magnetic suspension assembly driving rod 22 floats up and down can be 1-5cm, for example, when the fan works, the higher the rotating speed of the fan is, the higher the fan blade floats up due to the increase of wind resistance, and the lower the rotating speed of the fan blade is, the lower the wind resistance becomes, the lower the floating distance is, and the specific floating distance is determined by the weight of the fan blade 4, the magnetic force of the annular permanent magnet 5 and the rotating speed of the fan blade 4.
As an embodiment of the magnetic levitation assembly 3, as shown in fig. 2, the magnetic levitation assembly 3 includes a first permanent magnet 31 and a magnetically conductive fan blade mounting plate 32, the rotation axis of the first permanent magnet 31 is located at the center of gravity of the first permanent magnet 31, the magnetically conductive fan blade mounting plate 32 is adsorbed above the first permanent magnet 31 by magnetic force, the magnetically conductive fan blade mounting plate 32 is connected to the torque transmission device 21 by a plurality of driving rods 22 of the magnetic levitation assembly, and the fan blades 4 are plural, and the fan blades 4 are uniformly arranged around the magnetically conductive fan blade mounting plate 32 at intervals.
It is to be understood that the first permanent magnet 31 has magnetism, and the magnetic fan blade mounting plate 32 is magnetically conductive, so that the magnetically conductive fan blade mounting plate 32 can be attracted by the first permanent magnet 31 and integrated with the first permanent magnet 31. The torque output by the motor 1 is transmitted to the magnetic conduction fan blade mounting plate 32 through the magnetic suspension assembly driving rod 22 by the torque transmission device 21, and then the magnetic suspension assembly 3 where the magnetic conduction fan blade mounting plate 32 is located can drive the fan blades 4 to rotate. The first permanent magnet 31 has single magnetism with respect to one end of the ring-shaped permanent magnet 5, and the ring-shaped permanent magnet 5 has single magnetism with respect to one end of the first permanent magnet 31 and can repel each other, so that the gravity of all the fan blades 4 and the magnetic levitation component 3 is balanced by the magnetic repulsive force of the ring-shaped permanent magnet 5 to the first permanent magnet 31, thereby realizing that the magnetic levitation component 3 and the fan blades 4 are levitated at a predetermined reference position above the ring-shaped permanent magnet 5.
Wherein the number of the first permanent magnets 31 can be increased according to the weight of different types of fan blades 4 so as to achieve the magnetic repulsive force required by balancing the fan blades 4 and the magnetic levitation component 3. The rotation axis of the first permanent magnet 31 coincides with the geometric axis, that is, when the first permanent magnet 31 rotates, the horizontal rotation form and the static form of the first permanent magnet are basically consistent, so that the magnetic levitation assembly 3 does not generate centrifugal force to deviate from the preset reference position, and the magnitude and the range of the magnetic repulsive force between the annular permanent magnet 5 and the magnetic levitation assembly 3 are stable, so that the fan blade 4 is guaranteed to rotate by taking the preset reference position as the rotation center, shaking caused by unbalanced rotation of the fan blade 4 caused by deviation of the fan blade 4 from the preset reference position is avoided, and the output of the motor 1 is not increased to generate a large amount of noise.
Preferably, the first permanent magnet 31 is ring-shaped, regular polygon or hollow regular polygon. As can be appreciated, the axis of rotation of the first permanent magnet 31 coincides with the geometric axis, the first permanent magnet 31 having this feature includes a ring, a column, a disk, a sphere, a regular polygon or a hollow regular polygon, and other shapes whose horizontal rotation shape substantially coincides with the shape of the static shape when the first permanent magnet 31 rotates horizontally; the ring may be a circular ring, an elliptical ring, a square ring, a diamond ring, a regular or irregular polygon ring. By adopting the first permanent magnet 31 with the composite shape, when the fan blade 4 rotates, the magnetic levitation assembly 3 does not generate centrifugal force to deviate from the preset reference position, and the size and the range of the magnetic repulsive force between the annular permanent magnet 5 and the magnetic levitation assembly 3 are kept stable, so that the fan blade 4 is ensured to rotate by taking the preset reference position as the rotation center, the fan blade 4 cannot shake due to unbalanced rotation caused by the deviation of the fan blade 4 from the preset reference position, and the output of the motor 1 cannot be increased to generate a large amount of noise.
Preferably, the ceiling magnetic suspension fan further includes a plurality of electromagnets 7, as shown in fig. 4 and 5, the electromagnets 7 are an even number not less than four, and the plurality of electromagnets 7 are located at the hollow position of the ring-shaped permanent magnet 5 and uniformly distributed around the axis of the ring-shaped permanent magnet 5; after being electrified, the magnetic field directions of the electromagnets 7 are parallel to the magnetic field directions of the annular permanent magnets 5, and the magnetic field directions of any two electromagnets 7 positioned at the two radial ends of the annular permanent magnets 5 are opposite.
Understandably, the ring-shaped permanent magnet 5 is fixedly connected below the motor 1 for balancing the gravity of the fan blades 4 by the magnetic repulsive force of the magnetic levitation assembly 3 located above the center line thereof; however, the magnetic levitation assembly 3 has two degrees of freedom in the horizontal plane, which results in two directions of movement; in addition, under the action of the annular permanent magnet 5, the magnetic suspension assembly 3 can turn over in a vertical plane. Therefore, in order to ensure that the magnetic suspension assembly 3 does not move in the horizontal plane and turns over in the vertical plane, a plurality of electromagnets 7 are arranged in the annular permanent magnet 5, and the number of the electromagnets 7 is an even number not less than four. When the electromagnets 7 are energized, the magnetism of one end of the two electromagnets 7 (which can be set as a group) at the two radial ends of the annular permanent magnet 5, which are opposite to the magnetism of one end of the magnetic levitation assembly 3, is parallel to the magnetic field direction of the annular permanent magnet 5, so that the mutual attraction or repulsion effect is generated between the electromagnets 7 and the magnetic levitation assembly 3. When two sets of 4 electromagnets 7 are provided, two degrees of freedom in the horizontal plane of the magnetic levitation assembly 3 can be controlled such that the center of rotation of the magnetic levitation assembly 3 is located at a predetermined reference position and at the same time the magnetic levitation assembly 3 does not turn vertically.
Preferably, a plurality of electromagnets 7 are connected in series, or any two electromagnets 7 are connected in parallel and then connected in series. It will be appreciated that the electromagnet 7 requires a current to be applied to the coil, so that a plurality of electromagnets 7 may be connected in series, and the current is supplied to the coil of each electromagnet 7, so that the electromagnet 7 generates a magnetic field. Any two electromagnets 7 positioned at the two radial ends of the annular permanent magnet 5 can be connected in parallel, or any two electromagnets 7 are connected in parallel and then connected in series, and then the electromagnets 7 connected in parallel are connected in series; the power of the power supply can be reduced through parallel connection, so that the power supply is small in size and easy to place, the purchase cost of the power supply is reduced, and the electricity consumption cost of a user is reduced.
Preferably, the ceiling magnetic suspension fan further comprises a sensor 8 for monitoring the induction current change corresponding to the electromagnet 7; the sensors 8 are arranged on the central axis of the hollow position in the annular permanent magnet 5, and/or each electromagnet 7 is correspondingly provided with one sensor 8. Understandably, the degree of freedom of the magnetic levitation assembly 3 in the horizontal plane and the degree of freedom of the overturning in the vertical direction are controlled by the magnetic arrangement relation of the magnetic fields of the two electromagnets 7 at the radial ends of the annular permanent magnet 5 and the magnetic levitation assembly 3. When the magnetic levitation assembly 3 is displaced from the reference position in the horizontal plane or has a flip in the vertical direction, the current level of the corresponding electromagnet 7 needs to be adjusted. At this time, the current change of the corresponding electromagnet 7 can be obtained by correspondingly arranging a sensor 8 on each electromagnet 7, or the current change of each electromagnet 7 can be obtained by arranging the sensor 8 on the central axis of the hollow position in the annular permanent magnet 5, or the current change of each electromagnet 7 can be obtained by the corresponding sensor on each electromagnet 7 and the sensor 8 on the central axis of the hollow position in the annular permanent magnet 5, each current change signal is fed back to the control device, and the current of the corresponding electromagnet 7 is adjusted by the control device, so that the displacement control or the vertical overturning control of the magnetic levitation assembly 3 on the horizontal plane is realized, and the magnetic levitation assembly 3 returns to the preset reference position.
The control device comprises a control circuit, wherein the control circuit comprises a sensor signal detection circuit, an amplifying circuit connected with the sensor signal detection circuit, a power amplifier circuit connected with the amplifying circuit, a power supply circuit connected with the amplifying circuit and the like. The sensor signal detection circuit is a subtracting circuit, two electromagnets 7 positioned at two radial ends of the annular permanent magnet 5 are controlled through sensors 8 corresponding to the electromagnets 7, specifically, a new signal variation is synthesized by subtracting output signals of the sensors 8, and current variation of the corresponding electromagnets 7 is adjusted according to the signal variation, so that displacement control or vertical overturning control of the magnetic levitation assembly 3 on a horizontal plane is realized, and the magnetic levitation assembly 3 is basically positioned at a preset reference position in the horizontal plane.
Preferably, the ceiling magnetic suspension fan further comprises a mounting frame 6, as shown in fig. 2 and 5, the mounting frame 6 comprises a connecting pipe 61, a cover 62 and a connecting plate 63; the connecting pipe 61 is arranged along the axis of the magnetic suspension assembly 3, one end of the connecting pipe 61 is fixed on the motor 1, and the other end is connected to the top of the cover 62; the cover 62 is opened downwards, the connecting plate 63 is detachably arranged in the opening of the cover 62, and the annular permanent magnet 5 is arranged above the connecting plate 63.
It is to be understood that one end of the connecting tube 61 may be connected to the inner rotor of the motor 1, and the other end is connected to the lower end of the top of the cover 62, penetrating into the cover 62, and is fixed to the cover 62 by a nut, so that it is easy to disassemble and convenient to maintain and check. The connecting pipe 61, the cover 62 and the connecting plate 63 are non-magnetic and cannot be magnetized by the adjacent annular permanent magnet 5 or the magnetic suspension assembly 3, and the connecting pipe 61, the cover 62 and the connecting plate 63 can be made of zinc alloy, aluminum alloy or the like or are made of materials with surfaces plated with non-magnetic materials. A closed accommodating space can be formed above the connecting plate 63 in the cover body 62, the annular permanent magnet 5 can be arranged in the accommodating space, and a control device can be arranged in the accommodating space to protect the annular permanent magnet 5 and the control device; the enclosed space has good health condition, and the appearance of the ceiling magnetic suspension fan blade fan is tidy and beautiful.
As a preferred mounting embodiment of the fan blades, each fan blade 4 is preferably arranged on the magnetic levitation assembly 3 by means of a mounting shaft, which is parallel to the output shaft 11 of the motor 1, around which the fan blade 4 rotates in the non-operating state to a fan blade receiving position, which is concentric with the magnetic levitation assembly 3 and is located above the magnetic levitation assembly 3.
It is understood that the fan blades 4 of the ceiling magnetic levitation fan can be directly connected to the magnetic levitation component 3, or can be connected to the magnetic levitation component 3 through a fork connector, when in working state, the fan blades 4 cannot rotate relative to the magnetic levitation component 3, and when in non-working state, the fan blades 4 can rotate to the fan blade storage position through the mounting shaft. The fan blade storage position is concentric with the magnetic suspension assembly 3, and the diameter is equal to the outer diameter of the magnetic conduction fan blade mounting plate 32, or the diameter is equal to the diameter of the lamp 10, and the fan blade 4 storage position is above the magnetic suspension assembly 3. The fan blade 4 has an air pushing portion having a rear edge and a front edge, the rear edge being one end adjacent to the mounting axis of the fan blade, and the rear edge being planar at the mounting axis, the projection of the rear edge on the horizontal plane being an arc. The front edge is one end of the fan blade 4 far away from the installation shaft, the front edge is higher than the rear edge, the plane at the installation shaft of the front edge and the rear edge has a height difference, and as the distance between the front edge and the installation shaft of the rear edge is further, the height difference of the point where the front edge is located is larger, so that the front edge of one fan blade 4 can be overlapped and arranged above the rear edge of the adjacent fan blade 4. When the fan is not required to work, the fan blades 4 can rotate to the fan blade storage position, so that the size of the fan is reduced, the sanitation of the fan is easy to keep, and the fan is clean and attractive.
Preferably, as a preferred embodiment, the ceiling magnetic suspension fan further comprises a lamp 10 detachably arranged below the annular permanent magnet 5. It is understandable that also below the ring-shaped permanent magnet 5 are different types of lamps; or other types of electronic products, such as Bluetooth sound equipment, a projector, a camera, a wireless router and a purifier, so that the fan has extremely strong practicability or ornamental value, the application range of the fan is enlarged, the characteristics of intelligent home are met, and the service performance of the home is improved.
In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus the following claims are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate preferred embodiment of this invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. As will be apparent to those skilled in the art; various modifications to these embodiments will be readily apparent, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, as used in the specification or claims, the term "comprising" is intended to be inclusive in a manner similar to the term "comprising," as interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean "non-exclusive or".
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. A ceiling magnetic levitation fan comprising: the magnetic suspension device comprises a motor (1), a magnetic suspension assembly (3), an annular permanent magnet (5) and fan blades (4); the annular permanent magnet (5) is connected below the motor (1); the magnetic suspension assembly (3) is suspended between the annular permanent magnet (5) and the motor (1) through magnetic repulsion, and the magnetic suspension assembly (3) is connected with the motor (1) and is driven by the motor (1) to rotate; the fan blades (4) are connected to the magnetic suspension assembly (3);
the magnetic suspension fan blade fan also comprises a torque transmission device (21) and a magnetic suspension assembly driving rod (22) connected below the torque transmission device (21); -said torque transmitting device (21) is connected to said electric machine (1); the torque transmission device (21) drives the magnetic suspension assembly driving rod (22) to drive the magnetic suspension assembly (3) to rotate, and the magnetic suspension assembly (3) can float up and down relative to the magnetic suspension assembly driving rod (22);
and a limiter is arranged at the lower end of the magnetic suspension assembly driving rod (22) and on the torque transmission device (21).
2. The magnetic suspension fan as claimed in claim 1, wherein the magnetic suspension assembly (3) comprises a first permanent magnet (31) and a magnetically conductive fan blade mounting plate (32), the rotation axis of the first permanent magnet (31) is located at the center of gravity of the first permanent magnet (31), the magnetically conductive fan blade mounting plate (32) is adsorbed above the first permanent magnet (31) through magnetic force, the magnetically conductive fan blade mounting plate (32) is connected to the torque transmission device (21) through a plurality of magnetic suspension assembly driving rods (22), and a plurality of fan blades (4) are uniformly arranged around the magnetically conductive fan blade mounting plate (32) at intervals.
3. A magnetic levitation fan according to claim 2, characterized in that the first permanent magnet (31) is ring-shaped or regular polygon.
4. The magnetic suspension fan blade according to claim 1, further comprising a plurality of electromagnets (7), wherein the number of the electromagnets (7) is an even number not smaller than four, the plurality of electromagnets (7) are located at the hollow position of the annular permanent magnet (5), and are uniformly distributed around the axis of the annular permanent magnet (5); the magnetic field directions of the electromagnets (7) are parallel to the magnetic field directions of the annular permanent magnets (5) after the power is on, and the magnetic field directions of any two electromagnets (7) at the two radial ends of the annular permanent magnets (5) are opposite.
5. The magnetic levitation fan of claim 4, wherein a plurality of electromagnets (7) are connected in series, or any two electromagnets (7) are connected in parallel and then connected in series.
6. The magnetic levitation fan of claim 4, further comprising a sensor (8) for monitoring a change in induced current corresponding to the electromagnet (7); the sensors (8) are arranged on the central axis of the hollow position in the annular permanent magnet (5), and/or each electromagnet (7) is correspondingly provided with one sensor (8).
7. The magnetic levitation fan of claim 1, further comprising a mounting bracket (6), the mounting bracket (6) comprising a connecting tube (61), a shroud (62) and a connecting plate (63); the connecting pipe (61) is arranged along the axis of the magnetic suspension assembly (3), one end of the connecting pipe (61) is fixed on the motor (1), and the other end of the connecting pipe is connected to the top of the cover body (62); the cover body (62) is downward in opening, the connecting plate (63) is detachably arranged in the opening of the cover body (62), and the annular permanent magnet (5) is arranged above the connecting plate (63).
8. A magnetic levitation fan as claimed in claim 1, characterized in that each blade (4) is hinged to the magnetic levitation assembly (3) by means of a mounting shaft parallel to the output shaft (11) of the motor (1), the blade (4) being rotated about the mounting shaft in the inactive state to a storage position concentric with the magnetic levitation assembly (3) and above the magnetic levitation assembly (3).
9. The magnetic levitation fan of claim 1, further comprising a light fixture (10) detachably disposed below the annular permanent magnet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910116812.5A CN109751267B (en) | 2019-02-15 | 2019-02-15 | Ceiling magnetic suspension fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910116812.5A CN109751267B (en) | 2019-02-15 | 2019-02-15 | Ceiling magnetic suspension fan blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109751267A CN109751267A (en) | 2019-05-14 |
| CN109751267B true CN109751267B (en) | 2023-07-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910116812.5A Active CN109751267B (en) | 2019-02-15 | 2019-02-15 | Ceiling magnetic suspension fan blade |
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| CN2292924Y (en) * | 1995-12-18 | 1998-09-30 | 顾庆良 | Magnetic suspension electric fan |
| CN100544183C (en) * | 2006-03-17 | 2009-09-23 | 王晓冰 | Magnetic-repellent suspension device |
| US9546665B2 (en) * | 2013-03-15 | 2017-01-17 | Michael D. Stull | Levitating ceiling fan |
| CN109667777B (en) * | 2017-06-02 | 2020-11-06 | 东莞市杰伦塑胶灯饰有限公司 | Control part for adjusting and rebalancing rotating speed of magnetic suspension ventilation fan |
| CN107355398B (en) * | 2017-08-15 | 2023-08-15 | 广东顺德永怡御风电器灯饰有限公司 | Ceiling fan lamp with magnetic suspension motor |
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