CN218717617U - Ceiling fan based on axial flux motor - Google Patents

Abstract

The utility model discloses a ceiling fan based on an axial flux motor, which adopts the axial flux motor to drive fan blades to rotate and has the characteristics of high rotating efficiency, stable operation, relatively small volume as a whole, safety and reliability; the fan blade connecting piece connecting part is fixedly connected with the rotor assembly relatively, the fan blade connecting piece inserting part extends into the fan blade and is fixedly connected with the fan blade relatively, the problem that the fan blade is damaged easily due to the fact that the fan blade connecting piece is directly connected with the surface of the fan blade in the prior art can be avoided, meanwhile, the fan blade connecting piece can also improve the structural strength of the fan blade, and the probability of deformation of the fan blade is reduced.

Description

Ceiling fan based on axial flux motor

[ technical field ] A method for producing a semiconductor device

The utility model relates to a ceiling fan based on axial flux motor.

[ background of the invention ]

The industrial ceiling fan is a common industrial machine which is widely applied to industrial factory buildings, logistics storage, waiting rooms, exhibition halls, gymnasiums, super-high spaces and the like, and used for ventilating the spaces and cooling the personnel.

The industrial ceiling fan can push a large amount of airflow to the ground, and airflow layers at a certain height move horizontally on the ground, so that the whole air circulation is facilitated, the advantages of omnibearing ground coverage and three-dimensional circulation of air are achieved, and natural ventilation and an oversized coverage area can be achieved.

However, industrial ceiling fans have the following drawbacks:

1. at present, the fan blades of the industrial ceiling fan are generally connected with the motor through a blade fork, one end of the blade fork is fixedly connected with the motor, and the other end of the blade fork is relatively and fixedly connected to the surface of the fan blades. At present, in order to reduce the manufacturing cost of the fan blade and reduce the weight of the fan blade, the fan blade is usually designed to be thinner, so that the blade fork is connected with the surface of the fan blade, the fan blade is easily damaged, the service life of the fan blade is influenced, and the repair and replacement cost of the fan blade is increased; in addition, the thinner fan blade also causes lower rigidity of the fan blade, and the fan blade is easy to shake in the rotating process to cause connection fatigue between a blade fork and the fan blade, so that unsafe factors exist.

2. The stator assembly applied to the motor of the industrial ceiling fan at the present stage generally comprises a stator ring and a plurality of stator winding posts which are uniformly distributed on the stator ring at intervals in the circumferential direction, wherein a wire blocking part is arranged at the end part of each stator winding post; however, above-mentioned stator module receives structural design restriction, when adopting winding equipment to wind, in order to avoid interfering, need reserve in the stator holding tank between two adjacent stator wrapping posts and dodge the space usually, then under the certain circumstances of stator module size, the winding number of turns of above-mentioned stator module is then less, influences the size of magnetic flux, and then influences the output and the moment of torsion of motor to influence the result of use of industry ceiling fan. If the number of turns of the winding needs to be ensured, the design of the stator assembly needs to be increased, and the mode causes the whole volume and weight of the axial flux motor to be increased, and meanwhile, the manufacturing cost is also increased.

3. Stator module and stator shaft adopt connection structure such as snap ring to connect fixedly in the motor that is applied to industry ceiling fan at present stage usually, however, because the snap ring supports stator module for a long time, cause the snap ring easily and appear phenomenons such as becoming flexible, deformation, influence stator module and stator shaft fixed connection, cause to have structural instability and unsafe problem between stator module and the stator shaft, influence the normal use of industry ceiling fan.

4. The rotor component in the motor applied to the industrial ceiling fan at the present stage is generally in rotating connection with the stator shaft through the ball bearing, and because the rotor component is influenced by self gravity and blade gravity, an axial downward acting force can be generated, namely the rotor component enables the ball bearing to bear the axial downward acting force, so that the running of the ball bearing is difficult, the problem that the rotor component runs unstably and unsmoothly relative to the stator shaft is caused, and the problem that the industrial ceiling fan runs poorly and runs unstably is caused.

Therefore, the present invention has been made in view of the above problems.

[ Utility model ] content

The utility model aims at overcoming prior art not enough, providing a ceiling fan based on axial flux motor, can improve the problem that prior art exists, have stable in structure, structural strength is high, operates steadily, safe and reliable's characteristics.

The utility model discloses a realize through following technical scheme:

the utility model provides a ceiling fan based on axial flux motor, includes stator shaft 1, relatively fixedly connects stator module 2 on stator shaft 1, be located stator module 2 top and stator shaft 1 pivoted rotor subassembly 3 relatively and be a plurality of flabellum 5 of circumference distribution on rotor subassembly 3, each flabellum 5 is connected with rotor subassembly 3 through flabellum connecting piece 4, flabellum connecting piece 4 has connecting portion and grafting portion, 4 connecting portions of flabellum connecting piece are connected with 3 relatively fixed of rotor subassembly, 4 grafting portions of flabellum connecting piece stretch into in the flabellum 5 and with 5 relatively fixed of flabellum are connected.

As above a ceiling fan based on axial flux motor, stator module 2 includes stator ring 22 and coil winding 23 that are the circular ring form, stator ring 22 evenly distributed has stator wrapping post 221 along axial extension on the circumferencial direction, on stator ring 22 and be located adjacent two be formed with stator holding tank 222 between stator wrapping post 221, stator holding tank 222 is the opening setting along radial direction's both ends, the relative both sides face of stator holding tank 222 is the straight face, coil winding 23 includes coil body 231 and establishes the coil through-hole 232 that is used for being connected with stator wrapping post 221 cooperation on coil body 231 middle part.

As described above, in the ceiling fan based on the axial flux motor, the stator winding columns 221 have inner circular side walls 2211, first straight side walls 2212, outer circular side walls 2213 and second straight side walls 2214, and each of the stator accommodating grooves 222 is located between two adjacent stator winding columns 221 and is formed by the first straight side wall 2212 of one stator winding column 221 and the second straight side wall 2214 of the other stator winding column 221.

As described above, in the ceiling fan based on the axial-flux motor, the center line 2215 of the stator winding post 221 passes through the center of the stator ring 22, and the first and second straight side walls 2212 and 2214 of each stator winding post 221 extend towards the center of the stator ring 22 to intersect with a straight line parallel to the central axis of the stator ring 22.

As described above, the stator assembly 2 further includes the stator bottom casing 21 adapted and connected to the stator ring 22, and the bottom of the stator ring 22 directly or indirectly contacts the inner bottom of the stator bottom casing 21 for heat conduction.

As mentioned above, the stator assembly 2 includes the stator bottom shell 21 and the stator ring 22 connected to the stator bottom shell 21, the bottom wall of the stator bottom shell 21 is provided with the bottom shell through hole 211 for being connected to the stator shaft 1 in a matching manner, the lower end of the stator shaft 1 is provided with the stator shaft shoulder 11 integrally formed with the stator shaft 1, and when the stator assembly 2 is connected to the stator shaft 1 through the bottom shell through hole 211, the inner side surface of the stator shaft shoulder 11 abuts against the outer side surface of the bottom shell through hole 211 to prevent the stator assembly 2 from moving downwards along the axial direction relative to the stator shaft 1.

As described above, the ceiling fan based on the axial flux motor, the rotor assembly 3 includes the rotor disc 31 located above the stator assembly 2, the rotor disc 31 is provided with the rotor through hole 311 matched with the stator shaft 1, the rotor rotating part 32 is connected between the rotor disc 31 and the stator shaft 1, and the supporting and rotating assembly 33 for supporting the rotor disc 31 to rotate smoothly relative to the stator shaft 1 is provided between the rotor disc 31 and the stator shaft 1 or between the rotor disc 31 and the stator assembly 2.

As described above, the ceiling fan based on the axial flux motor, the rotor rotating member 32 is a downward thrust bearing which is arranged between the rotor through hole 311 and the stator shaft 1 and whose centripetal force is downward along the axial direction, the inner ring of the downward thrust bearing is relatively fixedly connected with the stator shaft 1, and the outer ring of the downward thrust bearing is relatively fixedly connected with the inner wall of the rotor through hole 311.

As described above, the ceiling fan based on the axial flux motor, the supporting and rotating assembly 33 includes a plane bearing disposed between the rotor disc 31 and the stator assembly 2, a lower supporting ring of the plane bearing is relatively fixedly connected with the stator assembly 2, and an upper supporting ring of the plane bearing is relatively fixedly connected with the rotor disc 31; or the supporting and rotating assembly 33 comprises an upward thrust bearing which is arranged between the rotor disc 31 and the stator shaft 1, the downward force is upward along the axial direction, the inner ring of the upward thrust bearing is fixedly connected with the stator shaft 1 relatively, and the outer ring of the upward thrust bearing is fixedly connected with the inner wall of the rotor through hole 311 relatively.

As described above, the fan blade 5 is hollow, the left connecting inner rib 51 and the right connecting inner rib 52 are arranged between the upper inner wall and the lower inner wall of the fan blade 5 at intervals, the left connecting inner rib 51 and the right connecting inner rib 52 are oppositely provided with the left limiting groove 511 and the right limiting groove 521, and the positioning space 53 for the insertion positioning of the insertion part of the fan blade connecting member 4 is formed between the left limiting groove 511 and the right limiting groove 521; a fan blade mounting hole 531 is formed in the fan blade 5 and correspondingly located in the positioning space 53; the fan blade connecting piece 4 is provided with a connecting piece mounting hole 42 which is used for aligning with the fan blade mounting hole 531 to be connected when the inserting part of the fan blade connecting piece 4 is inserted in the positioning space 53, and the connecting part of the fan blade connecting piece 4 is also provided with a connecting piece connecting hole 41 which is used for connecting and matching with the rotor assembly 3; and a connecting bolt/rivet which can simultaneously penetrate through the fan blade mounting hole 531 and the connector mounting hole 42 to fixedly connect the fan blade connector 4 and the fan blade 5.

Compared with the prior art, the utility model has the advantages of as follows:

1. the utility model discloses adopt radial flux motor to drive the flabellum among the relative prior art and rotate, the utility model discloses an axial flux motor drives the flabellum and rotates, has rotation efficiency height, operates steadily, and the volume is whole relatively less, safe and reliable's characteristics.

2 the utility model discloses in flabellum connecting piece connecting portion and rotor subassembly relatively fixed connection, flabellum connecting piece grafting portion stretch into in the flabellum and with flabellum relatively fixed connection, can avoid among the prior art flabellum connecting piece direct and flabellum surface connection and cause the problem of flabellum damage easily, the flabellum connecting piece also can improve the structural strength of flabellum simultaneously, reduces the probability that the flabellum takes place deformation.

3. Stator module is including being the annular stator ring of circle and coil winding, stator ring evenly distributed has along axially extended stator wrapping post on the circumferencial direction, on the stator ring and be located adjacent two be formed with the stator holding tank between the stator wrapping post, the stator holding tank is the opening setting along radial direction's both ends, the relative both sides face of stator holding tank is the straight face, coil winding includes the coil body and establishes the coil through-hole that is used for being connected with the cooperation of stator wrapping post on the coil body middle part, can make the coil winding of assembly on stator wrapping post laminate with stator wrapping post inseparabler, and then makes coil winding and stator wrapping post be connected more firm, can assemble coil winding and stator wrapping post high-efficiently simultaneously, and has guaranteed coil winding's the number of turns to the improvement magnetic flux in unit space maximize, and then improve axial flux motor's output, moment of torsion to ensure axial flux motor complete machine volume minimizing, effectively reduce production manufacturing cost.

4. Stator module still includes the stator drain pan of being connected with stator ring looks adaptation, stator ring bottom is direct or indirect to be contradicted in stator drain pan inner bottom and is carried out heat-conduction, can play the guard action to stator module, improves the radiating efficiency simultaneously.

5. Stator module includes stator drain pan and the stator ring of being connected with the stator drain pan, be equipped with on the stator drain pan diapire and be used for the drain pan through-hole of being connected with the stator shaft cooperation, the tip has rather than integrated into one piece's stator shaft shoulder under the stator shaft, and works as when stator module passes through the drain pan through-hole and is connected with the stator shaft, the medial surface of stator shaft shoulder supports and leans on in drain pan through-hole lateral surface in order to prevent the relative stator shaft of stator module and follow the downward drunkenness of axial, can make stator module and stator shaft be connected more firmly reliably and the structure is more stable, stator shaft shoulder and stator shaft integrated into one piece in addition, have simple structure, easily the characteristics of shaping manufacturing.

6. The rotor assembly comprises a rotor disc positioned above the stator assembly, a rotor through hole matched with the stator shaft is formed in the rotor disc, a rotor rotating part is connected between the rotor disc and the stator shaft, a supporting rotating assembly used for supporting the rotor disc to stably rotate relative to the stator shaft is arranged between the rotor disc and the stator shaft or between the rotor disc and the stator assembly, and the supporting rotating assembly is matched with the rotor rotating part to use, so that the acting force of the rotor disc on the rotor rotating part can be reduced by supporting the rotor disc by the supporting rotating assembly, and the rotor disc can smoothly and stably rotate relative to the stator shaft.

[ description of the drawings ]

The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:

fig. 1 is a perspective view of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is an exploded view of the axial flux motor of the present invention.

Fig. 4 is a cross-sectional view of an axial flux motor according to the present invention.

Fig. 5 is a perspective view of a stator assembly according to the present invention.

Fig. 6 is a schematic structural diagram of a stator assembly according to the present invention.

Fig. 7 is a top view of the stator assembly of the present invention when the coil winding is mounted on the stator winding post.

Fig. 8 is a side view of a stator assembly according to the present invention without coil windings on the stator winding legs.

Fig. 9 is a top view of the stator assembly of the present invention when no coil winding is mounted on the stator winding post.

Fig. 10 is a schematic structural view of the fan blade of the present invention.

Fig. 11 is a side view of the fan blade of the present invention.

Fig. 12 is an exploded view of the fan blade of the present invention.

Fig. 13 is an exploded view of the fan blade of the present invention.

Fig. 14 is a perspective view of the spoiler of the present invention.

Fig. 15 is a front view of the spoiler of the present invention.

Fig. 16 is a schematic view of the spoiler according to the present invention when viewed from the direction of the trailing end thereof.

Fig. 17 is a cross-sectional view of the spoiler of the present invention.

Fig. 18 is a bottom view of the present invention.

Fig. 19 is a cross-sectional view of another embodiment of an axial-flux electric machine of the present invention

[ detailed description ] A

Embodiments of the present invention will be described in detail below with reference to fig. 1 to 19.

As shown in fig. 1-18, the utility model relates to a ceiling fan based on axial flux motor, including stator shaft 1, relatively fixedly connect stator module 2 on stator shaft 1, be located stator module 2 top and relative stator shaft 1 pivoted rotor subassembly 3 and be a plurality of flabellum 5 of circumference distribution on rotor subassembly 3, each flabellum 5 passes through flabellum connecting piece 4 and is connected with rotor subassembly 3, flabellum connecting piece 4 has connecting portion and grafting portion, 4 connecting portions of flabellum connecting piece are connected with 3 relatively fixed of rotor subassembly, 4 grafting portions of flabellum connecting piece stretch into in the flabellum 5 and are connected with 5 relatively fixed of flabellum. Compared with the prior art that the radial flux motor is adopted to drive the fan blades to rotate, the axial flux motor is adopted to drive the fan blades to rotate, and the axial flux motor has the characteristics of high rotating efficiency, stable operation, relatively small volume, safety and reliability; the fan blade connecting piece connecting part is fixedly connected with the rotor assembly relatively, the fan blade connecting piece inserting part extends into the fan blade and is fixedly connected with the fan blade relatively, the problem that the fan blade is damaged easily due to the fact that the fan blade connecting piece is directly connected with the surface of the fan blade in the prior art can be avoided, meanwhile, the fan blade connecting piece can also improve the structural strength of the fan blade, and the probability of deformation of the fan blade is reduced.

As shown in FIG. 1, in order to make the ceiling fan operate more smoothly, the number of the fan blades is even, such as 4, 6, 8 fan blades are used.

As shown in fig. 1 to 9, the stator assembly 2 includes a circular stator ring 22 and a coil winding 23, the stator ring 22 has stator winding posts 221 extending axially along a circumferential direction, the stator ring 22 is located between two adjacent stator winding posts 221, the stator receiving groove 222 is formed at two ends of the stator receiving groove 222 along the radial direction, two opposite side surfaces of the stator receiving groove 222 are straight surfaces, the coil winding 23 includes a coil body 231 and a coil through hole 232 disposed at the middle of the coil body 231 and used for being connected with the stator winding posts 221 in a matching manner, so that the coil winding assembled on the stator winding posts can be attached to the stator winding posts more tightly, and the coil winding and the stator winding posts are connected more stably.

As shown in fig. 1 to 9, the stator winding columns 221 have an inner circular side wall 2211, a first straight side wall 2212, an outer circular side wall 2213 and a second straight side wall 2214, and each of the stator receiving grooves 222 is located between two adjacent stator winding columns 221 and is formed by the first straight side wall 2212 of one stator winding column 221 and the second straight side wall 2214 of the other stator winding column 221.

The edge between inner circular side wall 2211, first straight side wall 2212, outer circular side wall 2213 and second straight side wall 2214 is arc-shaped, can increase the area of contact of edge and coil winding, avoids the edge fish tail coil winding, plays the guard action, prolongs coil winding life and ensures stator module job stabilization nature.

As shown in fig. 1-9, the center line 2215 of the stator winding post 221 passes through the center of the stator ring 22, and the first and second straight side walls 2212 and 2214 of each stator winding post 221 extend toward the center of the stator ring 22 to intersect a straight line parallel to the central axis of the stator ring 22.

As shown in fig. 1 to 9, in order to increase the number of the stator winding posts and the number of the coil windings to increase the magnetic flux and improve the output power and the torque of the axial flux motor, an included angle between center lines 2215 of two adjacent stator winding posts 221 is α, and then α is greater than or equal to 3 ° and less than or equal to 15 °.

Preferably, an included angle α between center lines 2215 of two adjacent stator winding posts 221 is 8 °, and the number of the stator winding posts 11 is 52, so that the number of the coil windings is 52, the number of the stator winding posts and the number of the coil windings can be increased to increase magnetic flux, and meanwhile, the overall balance of the stator ring and the working stability of the stator assembly are ensured.

As shown in fig. 1 to 9, the cross section of the stator winding post 221 is trapezoidal, and correspondingly, the shape of the coil through hole 232 is adapted to the shape of the stator winding post 221, so that the contact area between the stator winding post and the winding coil can be increased, and the connection between the stator winding post and the winding coil is more stable.

As shown in fig. 1 to 9, the coil winding 23 is fixedly sleeved on the stator winding post 221 through an adhesive, so that the connection between the coil winding and the stator winding post is firmer, and the problem of unstable work of the stator assembly caused by the phenomenon of play of the coil winding relative to the stator winding post is avoided. The connecting terminal 233 of each coil winding 23 is located on the inner side of the stator ring 22 and connected correspondingly, so that the problems of high connecting cost and complex connection caused by the fact that the connecting terminal 233 is not located on the same side of the stator ring 22 can be solved, the connecting terminal 233 can be connected conveniently, and the connecting terminal 233 is protected.

As shown in fig. 1-9, stator assembly 2 further includes a stator bottom casing 21 adapted to and connected with a stator ring 22, the bottom of stator ring 22 directly or indirectly contacts with the inner bottom of stator bottom casing 21 for heat conduction, so as to protect stator assembly 2, and better dissipate heat from stator ring 22, thereby preventing the axial flux motor from being damaged due to the influence of the high temperature of stator assembly 2 on the output power of the axial flux motor when the axial flux motor works.

As shown in fig. 1 to 9, the stator bottom case 21 includes a bottom case outer ring 212 and a bottom case inner ring 213 located inside the bottom case outer ring 212, a bottom case installation groove 214 for installing the stator ring 22 is formed on the stator bottom case 21 and located between the bottom case outer ring 212 and the bottom case inner ring 213, the installation is convenient, a bottom case filling groove 215 for filling glue to fix the connection terminal 233 of each coil winding 23 is formed between the stator ring 22 and the bottom case inner ring 213, and the connection terminal 233 of each coil winding 23 is located in the bottom case filling groove 215, so that the problem of poor contact caused by the phenomena of shaking and loosening of the connection terminal 233 can be avoided, the connection terminal 233 is more stable to ensure the working stability of the stator assembly, and the product quality is ensured.

As shown in fig. 18, a plurality of bottom casing heat dissipation fins 216 are disposed on the outer bottom of the stator bottom casing 21 corresponding to the bottom of the stator ring 22, so as to increase the heat dissipation area and improve the heat dissipation efficiency.

As shown in fig. 18, for better heat dissipation, the bottom case heat sink 216 includes circumferential heat dissipation ribs disposed at the bottom of the stator ring 22 and spaced circumferentially along the stator bottom case 21, and radial heat dissipation ribs disposed at the bottom of the stator ring 22 and spaced radially along the stator bottom case 21, where the circumferential heat dissipation ribs and the radial heat dissipation ribs intersect.

As shown in fig. 1-9, the stator assembly 2 includes a stator bottom case 21 and a stator ring 22 connected to the stator bottom case 21, a bottom case through hole 211 for being connected to the stator shaft 1 in a matching manner is formed in the bottom wall of the stator bottom case 21, a stator shaft shoulder 11 integrally formed with the stator shaft 1 is formed at the lower end of the stator shaft 1, and when the stator assembly 2 is connected to the stator shaft 1 through the bottom case through hole 211, the inner side surface of the stator shaft shoulder 11 abuts against the outer side surface of the bottom case through hole 211 to prevent the stator assembly 2 from moving downward along the axial direction relative to the stator shaft 1, so that the stator assembly is connected to the stator shaft more firmly and more stably, and the stator shaft shoulder and the stator shaft are integrally formed, so that the stator assembly has the advantages of being simple in structure and being easy to be formed and manufactured. As shown in fig. 3-5, the bottom case through hole 211 is located inside the bottom case inner ring 213.

As shown in fig. 1 to 9, in order to improve the connection strength, a bottom case rib 2110 extending in the radial direction is provided on the stator bottom case 21 and along the circumferential side of the bottom case through hole 211.

In some embodiments, the number of the stator shaft shoulders 11 is multiple, and the multiple stator shaft shoulders 11 are located at the lower end of the stator shaft 11 in a stepped shape along the axial direction to prevent the stator assembly from moving downwards along the axial direction relative to the stator shaft, so that a multi-support limiting effect can be achieved, the strength of a connection structure of the stator shaft and the stator assembly is improved, and the stator shaft and the stator assembly are connected more firmly and reliably, and the safety is high.

In order to firmly connect the stator bottom case to the stator shaft and prevent the stator bottom case 21 from rotating relative to the stator shaft 1, the bottom case through hole 211 of the stator bottom case 21 is in interference fit with the stator shaft 1.

As shown in fig. 1-9, in order to improve the connection strength and better match the stator bottom case to prevent the stator bottom case from moving downward along the axial direction, a stator flange cover 12 is disposed at the lower end of the stator shaft 1 and above the stator shaft shoulder 11, a flange through hole 121 for matching and connecting with the stator shaft 1 is disposed in the middle of the stator flange cover 12, when the stator flange cover 12 is sleeved on the stator shaft 1 through the flange through hole 121 and the stator bottom case 21 is sleeved on the stator shaft 1 through the bottom case through hole 211 and above the stator flange cover 12, the inner side of the stator shaft shoulder 11 abuts against the outer side of the flange through hole 121, and the upper end of the stator flange cover 12 abuts against the outer side of the bottom case through hole 211 to prevent the stator assembly 2 from moving downward along the axial direction relative to the stator shaft 1. In the present embodiment, the stator bottom case 21 and the stator flange cover 12 are relatively fixedly connected by a connection fastener such as a bolt/rivet.

As shown in fig. 1 to 9, a bottom housing accommodating cavity for accommodating the stator flange cover 12 is formed on an outer side surface of the stator bottom housing 21, so that the axial flux motor has a more compact structure and a more stable connection structure.

The stator flange cover 12 is detachably connected with the stator shaft 1, and the flange through hole 121 of the stator flange cover 12 is in interference fit with the stator shaft 1 or is connected with the stator shaft 1 through a spline to limit the stator flange cover 12 to rotate relative to the stator shaft 1. When the stator flange cover is produced and processed, the transverse width of the stator flange cover is different from that of the stator shaft, so that the stator shaft and the stator flange cover are produced and manufactured separately, and the manufacturing cost can be saved.

As shown in fig. 1 to 4, the rotor assembly 3 includes a rotor disc 31 located above the stator assembly 2, magnetic shoes for cooperating with the coil windings 23 are correspondingly disposed on a lower surface of the rotor disc 31, a rotor through hole 311 for cooperating with the stator shaft 1 is disposed on the rotor disc 31, a rotor rotating member 32 is connected between the rotor disc 31 and the stator shaft 1, a supporting rotating assembly 33 for supporting the rotor disc 31 to rotate smoothly relative to the stator shaft 1 is disposed between the rotor disc 31 and the stator shaft 1 or between the rotor disc 31 and the stator assembly 2, and by using the supporting rotating assembly and the rotor rotating member in cooperation, the supporting rotating assembly can reduce an acting force of the rotor disc on the rotor rotating member, so that the rotor disc rotates smoothly and smoothly relative to the stator shaft. In the embodiment, the magnetic shoe is trapezoidal and the like, so that the magnetic flux can be increased, and the operation efficiency of the ceiling fan is improved.

As shown in fig. 1 to 4, preferably, the rotor rotating member 32 is a downward thrust bearing which is disposed between the rotor through hole 311 and the stator shaft 1 and has a centripetal force downward along the axial direction, an inner ring of the downward thrust bearing is relatively fixedly connected with the stator shaft 1, and an outer ring of the downward thrust bearing is relatively fixedly connected with an inner wall of the rotor through hole 311, so as to prevent the rotor disc from moving upward along the axial direction during the rotation process, and enable the rotation of the rotor disc to be more stable and smooth.

As shown in fig. 1 to 4, preferably, the supporting rotation assembly 33 includes a plane bearing disposed between the rotor disc 31 and the stator assembly 2, a lower supporting ring of the plane bearing is fixedly connected with the stator assembly 2, and an upper supporting ring of the plane bearing is fixedly connected with the rotor disc 31. As shown in fig. 4, the planar bearing is mounted on the stator bottom shell 21 and located inside the bottom shell inner ring 213, so as to better support the rotor disc 31, improve the structural strength of the rotor disc, and enable the rotor disc to rotate more smoothly relative to the stator shaft.

As shown in fig. 19, the supporting and rotating assembly 33 includes an upward thrust bearing disposed between the rotor disc 31 and the stator shaft 1, where the downward force is upward in the axial direction, the upward thrust bearing is located below the downward thrust bearing, the upward thrust bearing inner ring is fixedly connected to the stator shaft 1, and the upward thrust bearing outer ring is fixedly connected to the inner wall of the rotor through hole 311.

As shown in fig. 1-4, be equipped with support connecting piece 34 on the stator drain pan 21 and between planar bearing and the thrust bearing downwards, be equipped with support connecting hole 341 in the middle part of support connecting piece 34, support connecting hole 341 inner wall and the relative fixed connection of thrust bearing outer lane downwards, support ring inner wall relative fixed connection on support connecting piece 34 outer wall and the planar bearing, support connecting piece 34 upper surface supports the rotor disc 31 lower surface can make the utility model discloses the structure is more stable, the operation is better steady and better supports the rotor disc.

As shown in fig. 1 to 4, for better connection and installation, installation positioning grooves 312 for installing and positioning the connection parts of the fan blade connectors 4 are circumferentially distributed on the upper surface of the rotor disc 31 at intervals, and installation through holes for bolts/rivets to penetrate through are respectively arranged on the rotor disc 31 and located in the installation positioning grooves 312 and the connection parts of the fan blade connectors 4 to fixedly connect the fan blade connectors 4 and the rotor disc 31.

As shown in fig. 1 to 4, in order to better ensure that the blade connecting element 4 is connected with the rotor disc 31 more firmly and stably, the mounting and positioning slot 312 includes two positioning sidewalls 3121 provided on the rotor disc 31 for limiting the movement of the blade connecting element 4 along the circumferential direction of the rotor disc 31 and a positioning protrusion 3122 provided on the rotor disc 31 at the inner end side of the positioning sidewalls 3121 for limiting the movement of the blade connecting element 4 along the radial direction of the rotor disc 31.

As shown in fig. 1 and 10-17, the fan blade 5 is hollow, a left connecting inner rib 51 and a right connecting inner rib 52 are arranged between the upper inner wall and the lower inner wall of the fan blade 5 at intervals, a left limiting groove 511 and a right limiting groove 521 are oppositely arranged on the left connecting inner rib 51 and the right connecting inner rib 52, and a positioning space 53 for inserting and positioning the inserting part of the fan blade connecting member 4 is formed between the left limiting groove 511 and the right limiting groove 521; a fan blade mounting hole 531 is formed in the fan blade 5 and correspondingly located in the positioning space 53; the fan blade connecting piece 4 is provided with a connecting piece mounting hole 42 which is used for aligning with the fan blade mounting hole 531 to be connected when the inserting part of the fan blade connecting piece 4 is inserted in the positioning space 53, and the connecting part of the fan blade connecting piece 4 is also provided with a connecting piece connecting hole 41 which is used for connecting and matching with the rotor assembly 3; and a connecting bolt/rivet which can simultaneously penetrate through the fan blade mounting hole 531 and the connector mounting hole 42 to fixedly connect the fan blade connector 4 and the fan blade 5. The utility model discloses a be equipped with left connection inner rib 51 and right connection inner rib 52 between inner wall and the lower inner wall at interval on flabellum 5, can reduce the flabellum and be taken place phenomenons such as deformation under the effect of wind in the rotation process, improve flabellum structural strength, left connection inner rib 51 and right connection inner rib 52 all are located the flabellum inner chamber in addition, under the condition that the flabellum is the same size, the utility model discloses with the structure that the relative ratio inner rib is external that the inner rib embeds, have the characteristics that the flabellum is whole small, convenient to deposit, transport; a positioning space 53 for inserting and positioning the inserting part of the fan blade connecting piece 4 is formed between the left limiting groove 511 and the right limiting groove 521, and the problem that the blade is damaged and the service life of the fan blade is influenced because the fan blade connecting piece is directly connected with the outer surface of the fan blade in the prior art can be effectively solved by inserting the inserting part of the fan blade connecting piece into the positioning space; meanwhile, the positioning space also plays a role in guiding and positioning the fan blade connecting piece, and the fan blade connecting piece is convenient to install.

As shown in fig. 1 and 10-17, the inner wall of the fan blade 5 is provided with an inner reinforcing rib 54 located in the positioning space 53 and used for abutting against the insertion portion of the fan blade connector 4 when the insertion portion of the fan blade connector 4 is inserted into the positioning space 53, so that the structural strength of the fan blade can be further improved, the structural strength between the fan blade and the fan blade connector can be improved, and the stability of the fan blade structure can be ensured.

As shown in fig. 1 and 10-17, the fan blade mounting hole 531 is located at the position of the reinforcing inner rib 54, so that the connection strength between the side wall of the fan blade mounting hole 531 and the connecting bolt/rivet is enhanced, and the structural stability is improved.

As shown in fig. 1 and 10-17, in order to further improve the connection strength between the blade connector and the blade, the blade connector 4 is provided with a connector spacer which is used for abutting against the reinforcing inner rib 54 when the insertion portion of the blade connector 4 is inserted into the positioning space 53, and the connector spacer is provided with a spacer mounting hole aligned with the connector mounting hole 42, which is not shown in the drawings. During the equipment, can be fixed in on flabellum connecting piece 4 through glue bonding mode with the connecting piece gasket, gasket mounting hole aligns with connecting piece mounting hole 42 this moment, and operation flabellum connecting piece 4 pegs graft in location space 53 after that, until connecting piece mounting hole 42 aligns with flabellum mounting hole 531, later wear to locate flabellum mounting hole 531, gasket mounting hole and connecting piece mounting hole 42 with connecting bolt/rivet simultaneously in order to connect flabellum connecting piece 4, connecting piece gasket and flabellum 5 fixed connection.

Further, but the connecting piece gasket is deformable materials such as silica gel or rubber and makes, can avoid flabellum connecting piece and flabellum direct rigid contact and wearing and tearing each other, and the two life of extension can play the cushioning effect in addition, reduces the vibration that axial flux motor passes through the flabellum connecting piece and produces the flabellum, ensures that the flabellum rotates steadily.

As shown in fig. 1 and 10-17, in order to further improve the connection strength between the blade connector and the blade, the blade 5 is provided with a blade pad 55, and the blade pad 55 is provided with a pad mounting hole 551 aligned with and connected to the blade mounting hole 531. In the present embodiment, as shown in fig. 10 and 11, the blade pad 55 is located on the outer wall of the blade 5.

As shown in fig. 1, 10-17, the fan blade 5 is integrally extruded from an aluminum material in order to make the fan blade structure more stable and reduce the number of assembly steps.

As shown in fig. 1 and 10-17, the length of the fan blade 5 is 0.8-2.5 m. Preferably, the length of the fan blade 5 is 1.35m, so that air is disturbed better, the turbulent flow effect is improved, and the large-area blowing effect is realized.

As shown in fig. 1 and 10-17, the fan further includes a spoiler 56 connected to the tail end of the fan blade 5, the spoiler 56 includes a connection end face 561 connected to the tail end of the fan blade 5, a tail end face 563 opposite to the connection end face 561, a front end face 562 located between the front end of the connection end face 561 and the front end of the tail end face 563, a rear end face 564 located between the rear end of the connection end face 561 and the rear end of the tail end face 563, a spoiler upper surface 565 and a spoiler lower surface 566, the rear end face 564 is upwardly bent from the connection end face 561 toward the tail end face 563, the spoiler upper surface 565 and the spoiler lower surface 566 are both upwardly bent from the connection end face 561 toward the tail end face 563, and the spoiler lower surface 566 is inclined toward the rotation direction of the fan blade 5. When the ceiling fan is operated, the spoiler can effectively cut off the tail parts of the fan blades to form eddy currents, so that the ceiling fan is stably operated, the operation effect of the ceiling fan is improved, and the energy consumption is reduced; in addition, when the ceiling fan runs, the lower surfaces of the fan blades and the lower surfaces of the turbulent flow are acted by wind to enable the lower surfaces of the fan blades and the lower surfaces of the turbulent flow to have an upward force, and the upper surfaces of the turbulent flow are bent upwards from the connecting end surface to the tail end surface, so that the upper surfaces of the turbulent flow can be better contacted with the wind to enable the turbulent flow to have a downward force, and the downward force and the upward force are mutually offset, so that the vibration frequency of the fan blades in the rotating process is reduced, the stable rotation of the fan blades is ensured, and further, the fan blade connecting piece of the fan blades is stably connected with the rotor assembly; in addition, the lower turbulence surface is upwards bent from the connecting end surface to the tail end surface, so that wind passing through the lower turbulence surface can be diffused towards the radial direction of the fan blades, the blowing range is wider, and the turbulence effect is better.

As shown in fig. 1 and 10 to 17, the rear end face 564 is gradually increased in area from the connection end face 561 toward the tail end face 563 in order to facilitate bending and twisting of the rear end face.

As shown in fig. 1, 10-17, the connecting end face 561 is longer than the trailing end face 563 for manufacturing cost reduction. In this embodiment, the length of the connection end face 561 is the length of the connection end face 561 from the front end face 562 to the rear end face 564, and the length of the tail end face 563 is the length of the tail end face 563 from the front end face 562 to the rear end face 564.

As shown in fig. 1 and 10-17, the spoiler 56 is inserted into the tail end of the fan blade 5 through the plug member 560, and the plug member 560 and the fan blade 5 are fixedly connected through a fastener such as a screw/rivet, so that the spoiler and the fan blade can be connected more firmly, and the spoiler and the fan blade can be conveniently detached. In this embodiment, the connection structure between the plug 560 and the fan blade 5 is the same as the connection structure between the fan blade connector 4 and the fan blade 4, and the description thereof will not be repeated.

Claims (10)

1. The utility model provides a ceiling fan based on axial flux motor, its characterized in that includes stator shaft (1), relatively fixedly connects stator module (2) on stator shaft (1), is located stator module (2) top and stator shaft (1) pivoted rotor subassembly (3) relatively and is a plurality of flabellum (5) of circumference distribution on rotor subassembly (3), each flabellum (5) are connected with rotor subassembly (3) through flabellum connecting piece (4), flabellum connecting piece (4) have connecting portion and grafting portion, flabellum connecting piece (4) connecting portion and rotor subassembly (3) relatively fixed connection, flabellum connecting piece (4) grafting portion stretch into in flabellum (5) and with flabellum (5) relatively fixed connection.

2. The ceiling fan based on the axial flux motor as claimed in claim 1, wherein the stator assembly (2) comprises a circular stator ring (22) and a coil winding (23), the stator ring (22) has stator winding posts (221) extending axially and uniformly distributed in the circumferential direction, a stator receiving groove (222) is formed on the stator ring (22) and between two adjacent stator winding posts (221), the two ends of the stator receiving groove (222) in the radial direction are open, the two opposite side surfaces of the stator receiving groove (222) are straight surfaces, and the coil winding (23) comprises a coil body (231) and a coil through hole (232) formed in the middle of the coil body (231) and used for being matched and connected with the stator winding posts (221).

3. The ceiling fan based on axial flux motor as claimed in claim 2, wherein said stator winding posts (221) have an inner circular side wall (2211), a first straight side wall (2212), an outer circular side wall (2213) and a second straight side wall (2214), each of said stator receiving slots (222) being located between two adjacent stator winding posts (221) and being formed by the first straight side wall (2212) of one of said stator winding posts (221) and the second straight side wall (2214) of the other of said stator winding posts (221).

4. The ceiling fan in accordance with claim 3, wherein the centerline (2215) of the stator winding legs (221) passes through the center of the stator ring (22), and the first and second straight side walls (2212, 2214) of each stator winding leg (221) extend toward the center of the stator ring (22) to intersect a line parallel to the center axis of the stator ring (22).

5. The ceiling fan based on the axial flux motor is characterized in that the stator assembly (2) comprises a stator bottom shell (21) and a stator ring (22) connected with the stator bottom shell (21), a bottom shell through hole (211) used for being matched and connected with the stator shaft (1) is formed in the bottom wall of the stator bottom shell (21), a stator shaft shoulder (11) integrally formed with the stator shaft (1) is arranged at the lower end of the stator shaft (1), and when the stator assembly (2) is connected with the stator shaft (1) through the bottom shell through hole (211), the inner side face of the stator shaft shoulder (11) abuts against the outer side face of the bottom shell through hole (211) to prevent the stator assembly (2) from moving downwards relative to the stator shaft (1) along the axial direction.

6. The ceiling fan based on the axial flux motor as claimed in claim 1, wherein the rotor assembly (3) comprises a rotor disc (31) located above the stator assembly (2), the rotor disc (31) is provided with a rotor through hole (311) matched with the stator shaft (1), a rotor rotating member (32) is connected between the rotor disc (31) and the stator shaft (1), and a supporting rotating assembly (33) for supporting the rotor disc (31) to rotate smoothly relative to the stator shaft (1) is arranged between the rotor disc (31) and the stator shaft (1) or between the rotor disc (31) and the stator assembly (2).

7. The ceiling fan based on axial flux motor as claimed in claim 6 wherein the rotor rotating member (32) is a downward thrust bearing disposed between the rotor through hole (311) and the stator shaft (1) and having a centripetal force downward in the axial direction, the inner race of the downward thrust bearing being fixedly connected to the stator shaft (1) and the outer race of the downward thrust bearing being fixedly connected to the inner wall of the rotor through hole (311).

8. The ceiling fan based on the axial flux motor as claimed in claim 7, wherein the supporting and rotating assembly (33) comprises a flat bearing disposed between the rotor disc (31) and the stator assembly (2), the lower support ring of the flat bearing is fixedly connected with the stator assembly (2) relatively, and the upper support ring of the flat bearing is fixedly connected with the rotor disc (31) relatively; or the supporting and rotating assembly (33) comprises an upward thrust bearing which is arranged between the rotor disc (31) and the stator shaft (1) and has downward force upward along the axial direction, the inner ring of the upward thrust bearing is relatively and fixedly connected with the stator shaft (1), and the outer ring of the upward thrust bearing is relatively and fixedly connected with the inner wall of the rotor through hole (311).

9. The ceiling fan based on the axial flux motor as claimed in any one of claims 6-8, wherein the upper surface of the rotor disc (31) has mounting positioning slots (312) for mounting and positioning the connection part of the fan blade connection member (4) at intervals along the circumferential direction, the mounting positioning slots (312) comprise two positioning side walls (3121) provided on the rotor disc (31) for limiting the movement of the fan blade connection member (4) along the circumferential direction of the rotor disc (31) and positioning protrusions (3122) provided on the rotor disc (31) at the inner end side of the positioning side walls (3121) for limiting the movement of the fan blade connection member (4) along the radial direction of the rotor disc (31).

10. The ceiling fan based on the axial flux motor as claimed in any one of claims 1-8, wherein the fan blade (5) is hollow, a left connecting inner rib (51) and a right connecting inner rib (52) are arranged between the upper inner wall and the lower inner wall of the fan blade (5) at intervals, a left limiting groove (511) and a right limiting groove (521) are oppositely arranged on the left connecting inner rib (51) and the right connecting inner rib (52), and a positioning space (53) for inserting and positioning the inserting part of the fan blade connecting piece (4) is formed between the left limiting groove (511) and the right limiting groove (521);

a fan blade mounting hole (531) is formed in the fan blade (5) and correspondingly positioned in the positioning space (53);

the fan blade connecting piece (4) is provided with a connecting piece mounting hole (42) which is aligned with the fan blade mounting hole (531) to be connected when the inserting part of the fan blade connecting piece (4) is inserted into the positioning space (53), and the connecting part of the fan blade connecting piece (4) is also provided with a connecting piece connecting hole (41) which is used for being connected and matched with the rotor component (3);

the fan blade connecting piece is characterized by also comprising connecting bolts/rivets which can simultaneously penetrate through the fan blade mounting holes (531) and the connecting piece mounting holes (42) to fixedly connect the fan blade connecting pieces (4) and the fan blades (5).

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