CN112228369A - Fan blade device for brushless fan - Google Patents
Fan blade device for brushless fan Download PDFInfo
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- CN112228369A CN112228369A CN202011087852.0A CN202011087852A CN112228369A CN 112228369 A CN112228369 A CN 112228369A CN 202011087852 A CN202011087852 A CN 202011087852A CN 112228369 A CN112228369 A CN 112228369A
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- Prior art keywords
- brushless motor
- brushless
- fan blade
- shell
- ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the field of brushless fans, in particular to a fan blade device for a brushless fan, which comprises a fan blade assembly arranged on a rotating shaft of a brushless motor, wherein the fan blade assembly comprises a rotating drum with an opening at one end, a buffer mechanism used for inhibiting torsional vibration of the rotating drum is arranged between the end surface of the inner side of the rotating drum and a shell of the brushless motor, an air storage cylinder is fixed on the shell of the brushless motor, a plurality of plectrums are fixed on the peripheral wall of the inner side of the rotating drum, the buffer mechanism conveys air to the interior of the air storage cylinder through an air pipe to increase the air pressure in the air storage cylinder, the air storage cylinder can generate pneumatic thrust on the plectrums to enable the plectrums to drive the rotating drum to rotate, the fan blade assembly also comprises a ring drum, the rotating drum is positioned at the inner side of. This kind of a fan blade device for brushless fan improves and ensures efficient air transportation efficiency, improves the life of brushless motor pivot, reduces the energy consumption.
Description
Technical Field
The invention relates to the field of brushless fans, in particular to a fan blade device for a brushless fan.
Background
The brushless fan adopts a brushless motor as a driving element and drives the fan blades to rotate, so that air is conveyed by applying work to the air. The existing brushless fan blade usually adopts straight blades, so that the conveying wind power is small, the wind power loss is generated at the edge of the blades, the energy consumption of the brushless fan is increased, and the air conveying efficiency is reduced. And current fan blade is when rotating because receive machining precision, the momentum is unbalanced, factor such as operational environment leads to the whole fan blade to twist pendulum vibration on brushless motor's the pivot central axis is on the face, make brushless fan produce great vibration, can exert bending stress to brushless motor's pivot when the fan blade twists pendulum in addition, thereby reduce brushless motor pivot's life, in addition because the fan blade makes brushless motor's pivot receive great torsional stress effect because inertial action makes brushless motor's pivot in the twinkling of an eye of starting, thereby be unfavorable for improving brushless motor's pivot life, in view of this, we provide a fan blade device for brushless fan.
Disclosure of Invention
The invention aims to provide a fan blade device for a brushless fan, which aims to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme: a fan blade device for a brushless fan comprises a fan blade assembly arranged on a rotating shaft of a brushless motor, a mesh enclosure is fixed on a shell of the brushless motor, the fan blade assembly is arranged on the inner side of the mesh enclosure, the fan blade assembly comprises a rotating drum with an opening at one end, the rotating shaft of the brushless motor penetrates through the center of the end face of the rotating drum, a buffer mechanism used for inhibiting torsional vibration of the rotating drum is arranged between the end face of the inner side of the rotating drum and the shell of the brushless motor, an air storage cylinder is fixed on the shell of the brushless motor, a plurality of poking pieces are fixed on the peripheral wall of the inner side of the rotating drum, the buffer mechanism conveys air into the air storage cylinder through an air pipe to increase the air pressure in the air storage cylinder, the air storage cylinder can generate pneumatic thrust on the poking pieces to drive the rotating drum to rotate, the fan blade assembly further comprises a ring cylinder, the blades and the central axis of the rotating cylinder form an inclination angle of 3-8 degrees, an outer flange extending outwards is fixed on the side edge of the peripheral wall of the annular cylinder far away from the brushless motor, and a plurality of fin plates are fixed between the outer flange and the peripheral wall of the annular cylinder.
Preferably, the rotating drum can only slide back and forth on the rotating shaft of the brushless motor along the axial direction of the rotating shaft of the brushless motor, the end part of the rotating shaft of the brushless motor can be sleeved with a locking plate for abutting and buckling the rotating drum, and the end part of the rotating shaft of the brushless motor is in threaded connection with a nut for limiting the rotating drum on the rotating shaft.
Preferably, the plurality of shifting pieces on the circumferential wall of the inner side of the rotating cylinder are arranged at equal intervals along the circumferential direction, the spraying direction of the air storage cylinder points to the shifting pieces, two ends of the blades are respectively vertically and fixedly connected to the outer side wall of the rotating cylinder and the inner side wall of the annular cylinder, the plurality of blades are arranged at equal intervals along the circumferential direction, and the plurality of fin plates are arranged at equal intervals along the circumferential direction.
Preferably, the open end of the rotary drum can be sleeved outside the shell of the brushless motor, a gap is reserved between the inner wall of the rotary drum and the shell of the brushless motor, the buffer mechanism comprises a shaft sleeve fixed on the shell of the brushless motor, a lantern ring is fixed at one end, away from the shell of the brushless motor, of the shaft sleeve, the peripheral wall of the lantern ring is of a spherical structure, the shaft sleeve and the lantern ring are all sleeved outside the rotary shaft of the brushless motor, and the rotary shaft of the brushless motor, the shaft sleeve and the lantern ring share the central.
Preferably, the mode through the ball pivot on the periphery wall of the lantern ring is connected with the change, be provided with a plurality of slide drums between change and the brushless motor shell, the one end dead axle initiative of slide drum is connected on the brushless motor shell, the inboard sliding connection of slide drum has the piston board, and the piston board is connected with the one end that the brushless motor shell was kept away from to the slide drum through spring one, the piston board deviates from one side of brushless motor shell perpendicularly and fixedly connected with pull rod, the one end that the piston board was kept away from to the pull rod runs through the end wall of the slide drum that corresponds, the one end dead axle rotation that the pull rod is located the slide drum outside is connected in the change one side towards the brushless motor shell.
Preferably, a plurality of the sliding cylinders are arranged at equal intervals along the circumferential direction, the side wall of one end, close to the brushless motor shell, of each sliding cylinder is connected with a one-way valve I and a one-way valve II, the one-way valves II are communicated with the air storage cylinder through air pipes, the conduction direction of the one-way valves I points to the inner side of the sliding cylinders, and the conduction direction of the one-way valves II points to the air storage cylinder.
Preferably, the buffering mechanism further comprises a convex ring fixed on the end wall of the inner side of the rotary drum, the convex ring and the rotary drum share a central axis, a plurality of balls are embedded in one side of the rotary ring facing the convex ring at equal intervals along the circumferential direction, the balls can freely rotate on the rotary ring, the convex ring can be in buckling contact with the balls, and the balls can roll on the convex ring.
Preferably, an electromagnetic valve is fixed in the air storage cylinder and close to the air outlet, and the electromagnetic valve and the time relay are connected in series and then connected with the brushless motor in parallel through a circuit.
Preferably, the inside sliding connection of gas receiver has the slide, and the slide is connected with the one end that the gas receiver kept away from the port of giving vent to anger through spring two, is provided with the spacing ring between solenoid valve and the slide, and the spacing ring is fixed on the inner wall of gas receiver, and the slide can support with the spacing ring and detain the contact, is connected with the relief valve on the lateral wall of gas receiver, and the relief valve is located the intermediate position of solenoid valve and spacing ring, and the connecting end of trachea and gas receiver also is located the intermediate position of solenoid valve and spacing ring.
Compared with the prior art, the invention has the beneficial effects that:
in the invention, the rotary drum is limited on the rotary shaft through the screw cap and the locking plate, the locking plate adopts a plane structure and is in plane contact with the end surface of the rotary drum, the structure is reliable, the torsional vibration of the rotary drum can be inhibited, the dynamic unbalance of the fan blade assembly can be ensured, the requirement on the precision of the fan blade assembly mould is low, the assembly efficiency of a product is improved, in addition, the blades are fixed between the rotary drum and the ring drum in a setting mode with an inclination angle, so the air conveying efficiency of the fan blade assembly is increased, the rotation of the plectrum can accelerate the air flow rate at the shell and the rotary shaft of the brushless motor, so the heat dissipation effect on the shell and the rotary shaft of the brushless motor is increased, and because the ring drum and the fin plate are adopted, the air flow between the ring drum and the inner wall of the mesh enclosure flows to the inner side of the mesh enclosure in the rotating process of driving the fin plate by, the energy consumption of the brushless motor is further reduced, and the efficient air conveying efficiency is guaranteed;
according to the invention, the buffer mechanism plays a role in buffering and damping torsional vibration of the rotary fan blade assembly, the torsional vibration of the fan blade assembly is inhibited, and the vibration generated in the rotation process of the fan blade assembly is reduced, so that the vibration generated on the brushless motor is reduced, the stability and the reliability of the brushless fan during working are improved, the bending stress applied to the rotating shaft of the brushless motor by rotation is reduced, and the service life of the rotating shaft of the brushless motor is prolonged;
according to the invention, the torsional vibration energy is captured by the buffer mechanism and acts on air compression, so that the air pressure in the air storage cylinder is increased, the energy recovery effect is achieved, the effect of the recovered torsional vibration energy is utilized to boost the starting of the fan blade assembly when the brushless motor is started next time, the effect of larger inertia torsional stress of the rotating shaft of the brushless motor when the fan blade assembly is started is reduced, the rotating shaft of the brushless motor is protected, the service life of the rotating shaft of the brushless motor is prolonged, the torsional vibration energy captured by the buffer mechanism is recycled, the energy consumption is reduced, and the working efficiency of the brushless fan is improved.
Drawings
FIG. 1 is a schematic cross-sectional view of the final assembly of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of a cross-sectional structure B-B in FIG. 1;
FIG. 4 is a first schematic structural diagram of a fan blade assembly according to the present invention;
fig. 5 is a second structural schematic diagram of the fan blade assembly according to the present invention.
In the figure: 1. a brushless motor; 2. a mesh enclosure; 3. a rotating drum; 4. a blade; 5. a shifting sheet; 6, an air cylinder; 7. a buffer mechanism; 8. a locking plate; 9. a nut; 10. a convex ring; 11. a shaft sleeve; 12. a collar; 13. rotating the ring; 14. a ball bearing; 15. a slide cylinder; 16. a piston plate; 17. a first spring; 18. a pull rod; 19. a one-way valve I; 20. an air tube; 21. a second one-way valve; 22. a slide plate; 23. a second spring; 24. a limiting ring; 25. an electromagnetic valve; 26. a pressure relief valve; 27. a time relay; 28. a ring cylinder; 29. an outer flange; 30. a fin plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by workers skilled in the art without any inventive work based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: a fan blade device for a brushless fan comprises a fan blade assembly arranged on a rotating shaft of a brushless motor 1, a mesh enclosure 2 is fixed on a shell of the brushless motor 1, the fan blade assembly is arranged on the inner side of the mesh enclosure 2, the fan blade assembly comprises a rotating drum 3 with an opening at one end, the rotating shaft of the brushless motor 1 penetrates through the center of the end face of the rotating drum 3, a buffer mechanism 7 for inhibiting torsional vibration of the rotating drum 3 is arranged between the end face of the inner side of the rotating drum 3 and the shell of the brushless motor 1, an air storage cylinder 6 is fixed on the shell of the brushless motor 1, a plurality of poking pieces 5 are fixed on the peripheral wall of the inner side of the rotating drum 3, the buffer mechanism 7 conveys air into the air storage cylinder 6 through an air pipe 20 to increase the air pressure in the air storage cylinder 6, the air storage cylinder 6 can generate pneumatic thrust on the poking pieces 5 to enable the poking pieces 5 to drive the rotating drum 3 to rotate, a plurality of blades 4 are arranged between the outer side wall of the rotary drum 3 and the inner side wall of the annular drum 28, the blades 4 and the central axis of the rotary drum 3 form an inclination angle of 3 degrees to 8 degrees, an outer flange 29 extending outwards is fixed on the side, away from the brushless motor 1, of the outer peripheral wall of the annular drum 28, and a plurality of fins 30 are fixed between the outer flange 29 and the outer peripheral wall of the annular drum 28.
In this embodiment, the drum 3 can only slide back and forth on the rotating shaft of the brushless motor 1 along the axial direction of the rotating shaft of the brushless motor 1, the end of the rotating shaft of the brushless motor 1 can be sleeved with a locking plate 8 for abutting and buckling the drum 3, and the end of the rotating shaft of the brushless motor 1 is screwed with a nut 9 for limiting the drum 3 on the rotating shaft.
In this embodiment, the plurality of the plectrum 5 on the peripheral wall of the inner side of the rotating cylinder 3 are arranged at equal intervals along the circumferential direction, the spraying direction of the air storage cylinder 6 points to the plectrum 5, two ends of the blades 4 are respectively vertically and fixedly connected to the outer side wall of the rotating cylinder 3 and the inner side wall of the ring cylinder 28, the plurality of the blades 4 are arranged at equal intervals along the circumferential direction, and the plurality of the fin plates 30 are arranged at equal intervals along the circumferential direction.
In this embodiment, the open end of the rotary drum 3 can be sleeved outside the housing of the brushless motor 1, and a gap is left between the inner wall of the rotary drum 3 and the housing of the brushless motor 1, the buffering mechanism includes a shaft sleeve 11 fixed on the housing of the brushless motor 1, one end of the shaft sleeve 11 away from the housing of the brushless motor 1 is fixed with a lantern ring 12, the peripheral wall of the lantern ring 12 is a spherical structure, the shaft sleeve 11 and the lantern ring 12 are all sleeved outside the rotating shaft of the brushless motor 1, and the rotating shaft of the brushless motor 1, the shaft sleeve 11 and the lantern ring 12 share the central axis.
In this embodiment, the outer peripheral wall of the lantern ring 12 is connected with the swivel 13 in a spherical hinge manner, a plurality of sliding cylinders 15 are arranged between the swivel 13 and the brushless motor 1 casing, one end fixed shaft of each sliding cylinder 15 is actively connected to the brushless motor 1 casing, the inner side of each sliding cylinder 15 is connected with a piston plate 16 in a sliding manner, each piston plate 16 is connected with one end, away from the brushless motor 1 casing, of each sliding cylinder 15 through a spring 17, each piston plate 16 is vertically and fixedly connected with a pull rod 18, one end, away from the piston plate 16, of each pull rod 18 penetrates through the end wall of the corresponding sliding cylinder 15, and one end, located outside the corresponding sliding cylinder 15, of each pull rod 18 is rotationally connected to one side, towards the brushless motor 1 casing, of the swivel 13 in a fixed shaft.
In this embodiment, the plurality of sliding cylinders 15 are arranged at equal intervals along the circumferential direction, the side wall of one end of each sliding cylinder 15, which is close to the housing of the brushless motor 1, is connected with a first check valve 19 and a second check valve 21, the second check valve 21 is communicated with the air storage cylinder 6 through an air pipe 20, the conduction direction of the first check valve 19 points to the inner side of the sliding cylinder 15, and the conduction direction of the second check valve 21 points to the air storage cylinder 6.
In this embodiment, the buffering mechanism further includes a convex ring 10 fixed on the inner end wall of the rotating cylinder 3, the convex ring 10 and the rotating cylinder 3 share a central axis, a plurality of balls 14 are embedded in one side of the rotating ring 13 facing the convex ring 10 along the circumferential direction at equal intervals, the balls 14 can rotate freely on the rotating ring 13, the convex ring 10 can be in abutting contact with the balls 14, and the balls 14 can roll on the convex ring 10.
In this embodiment, the electromagnetic valve 25 is fixed inside the air cylinder 6 near the air outlet port, the electromagnetic valve 25 and the time relay 27 adopt a series circuit connection mode and then adopt a parallel circuit connection with the brushless motor 1, the electromagnetic valve 25 adopts a normally closed electromagnetic valve, the time relay 27 adopts an energization delay type electronic time relay, when the brushless motor 1 is energized to work, the electromagnetic valve 25 is synchronously energized and is in an open state, the time relay 27 is in an open state after the energization delay of the time relay 27, that is, the electromagnetic valve 25 is synchronously de-energized, thereby the electromagnetic valve 25 is closed again, that is, the electromagnetic valve 25 is closed again after the high-pressure gas in the air cylinder 6 is output.
In this embodiment, the inside sliding connection of air receiver 6 has slide 22, slide 22 is connected with the one end that air receiver 6 kept away from the port of giving vent to anger through two springs 23, be provided with spacing ring 24 between solenoid valve 25 and the slide 22, spacing ring 24 is fixed on the inner wall of air receiver 6, and slide 22 can support the knot with spacing ring 24 and contact, be connected with relief valve 26 on the lateral wall of air receiver 6, relief valve 26 is located the intermediate position of solenoid valve 25 and spacing ring 24, trachea 20 also is located the intermediate position of solenoid valve 25 and spacing ring 24 with the link of air receiver 6.
The use method and the advantages of the invention are as follows: when the fan blade device for the brushless fan is used, the working process is as follows:
as shown in fig. 1 and 2, the rotary drum 3 is sleeved on the rotating shaft of the brushless motor 1, so that the residual balls 14 of the convex ring 10 are in buckling contact, the rotary drum 3 is limited on the rotating shaft by the nut 9 and the locking plate 8, the locking plate 8 adopts a planar structure and is in planar contact with the end surface of the rotary drum 3, the structure is reliable, the torsional vibration of the rotary drum 3 can be inhibited, the dynamic unbalance of the fan blade assembly can be ensured, the precision requirement on the fan blade assembly mold is low, and the assembly efficiency of the product is improved.
After the fan blade assembly is installed, the brushless motor 1 is electrified and started to drive the rotary drum 3 to rotate through the rotary shaft, so that the rotary drum 3 synchronously drives the movable blade 4, the poking piece 5 and the annular cylinder 28 to rotate, as shown in fig. 1, 4 and 5, the blades 4 are fixed between the rotary drum 3 and the annular cylinder 28 in an inclined angle arrangement mode, so that the air conveying efficiency of the fan blade assembly to the air is increased, the rotation of the poking piece 5 can accelerate the air flow rate at the shell and the rotary shaft of the brushless motor 1, so as to play a role in increasing the heat dissipation of the shell and the rotary shaft of the brushless motor 1, and the annular cylinder 28 and the fin plate 30 are adopted to enable the annular cylinder 28 to drive the fin plate 30 to rotate, so that the air flow between the annular cylinder 28 and the inner wall of the mesh enclosure 2 flows to the inner side of the mesh enclosure 2 and is output under the action of, and then reduce brushless motor 1's energy consumption, guarantee efficient air delivery efficiency.
In the process of rotating the synchronous belt moving blades 4 and the ring barrel 28 of the rotary drum 3, the blades 4 are subjected to torsional vibration generated on the surface of the central axis of the rotating shaft of the brushless motor 1 by factors such as machining precision, momentum imbalance and working environment, so that the rotary drum 3 synchronously drives the convex ring 10 to perform torsional vibration together, the convex ring 10 drives the rotary ring 13 to rotate on the ring barrel 12 around the spherical center of the outer peripheral wall of the ring barrel 12 through the balls 14, so that the rotary ring 13 applies tension or thrust to the corresponding pull rod 18, the pull rod 18 synchronously drives the corresponding piston plate 16 to slide in the slide barrel 15, the sliding of the piston plate 16 in the slide barrel 15 stretches or compresses the corresponding spring I17, the torsional vibration of the rotary drum 3 is buffered and damped through the deformation of the spring I17, the torsional vibration of the rotary drum 3 is inhibited, and the vibration generated in the rotating process of the synchronous belt moving blades 4 and the ring barrel 28 of the rotary drum 3 is reduced, therefore, vibration generated on the brushless motor 1 is reduced, stability and reliability of the brushless fan during working are improved, bending stress applied to a rotating shaft of the brushless motor by rotation is reduced, and service life of the rotating shaft of the brushless motor 1 is prolonged.
As shown in fig. 2 and 3, when the piston plate 16 slides in the corresponding slide cylinder 15, when the pull rod 18 is pushed by the rotary ring 13 to cause the piston plate 16 to compress the air in the corresponding slide cylinder 15, the conduction direction of the one-way valve one 19 is directed to the inner side of the slide cylinder 15, and the conduction direction of the one-way valve two 21 is directed to the air storage cylinder 6, so that the air in the slide cylinder 15 is delivered into the air storage cylinder 6 through the air pipe 20, the brushless motor 1 turns off the electromagnetic valve 25 under the delayed power-off action of the time relay 27 after starting for a turn-off time, so that the air delivered into the air storage cylinder 6 by the air pipe 20 is stored in the air storage cylinder 6, and when the pull rod 18 is pulled by the rotary ring 13 to cause the piston plate 16 to increase the space in the corresponding slide cylinder 15, a suction force is generated inside the slide cylinder 15, and the suction force is used for sucking the external air into the slide cylinder 15 through the one-way valve one 19 so that the pull rod 18 is delivered into the slide cylinder 15 next time when the pull rod 18 is pushed In the air receiver 6, the torsional pendulum vibration energy that the fan blade subassembly produced is used for doing work to the air to further reduction is to the vibration damage of brushless fan, and buffer gear 7 catches torsional pendulum vibration energy and does work to the air compression moreover, makes the air pressure increase in the air receiver 6, has the effect of energy recuperation.
After the air pressure in the air storage cylinder 6 is increased, the spring II 23 is compressed through the sliding plate 22, so that the spring II 23 obtains restoring force, and after the air pressure in the air storage cylinder 6 is increased to a certain degree due to the long working time of the brushless motor 1, the pressure inside the air storage cylinder 6 is relieved through the pressure relief valve 26, so that the safety of the whole device is ensured, when the brushless fan is started again after being powered off, because the electromagnetic valve 25 is synchronously electrified with the brushless motor 1, the electromagnetic valve 25 is in an open state, at the moment, the sliding plate 22 sprays the high-pressure gas stored in the air storage cylinder 6 to the plectrum 5 from the gas outlet port of the air storage cylinder 6 under the action of the restoring force of the spring II 23, so that the air flow exerts force on the plectrum 5, further the plectrum 5 exerts thrust on the air storage cylinder 3, and the inertia force action of the rotating cylinder 3 is overcome, so, and then reduce brushless motor 1's pivot and receive the great torsional stress effect of fan blade assembly when starting, thereby play the guard action to brushless motor 1's pivot, improve brushless motor 1's pivot life, and the torsional pendulum vibration energy of catching buffer gear 7 is recycled, thereby reduce the energy consumption, improve brushless fan's work efficiency, after the air output of gas receiver 6 inside, make solenoid valve 25 outage and be in the off-state under time relay 27's the delayed power-off action this moment, so that again to fan blade assembly's torsional pendulum vibration energy recovery.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a fan blade device for brushless fan, is including setting up at brushless motor (1) epaxial fan blade subassembly, be fixed with screen panel (2) on the shell of brushless motor (1), and fan blade subassembly sets up the inboard at screen panel (2), its characterized in that: the fan blade assembly comprises a rotating drum (3) with an opening at one end, a rotating shaft of the brushless motor (1) penetrates through the center of the end face of the rotating drum (3), a buffer mechanism (7) used for inhibiting torsional vibration of the rotating drum (3) is arranged between the end face of the inner side of the rotating drum (3) and the shell of the brushless motor (1), an air storage drum (6) is fixed on the shell of the brushless motor (1), a plurality of poking pieces (5) are fixed on the peripheral wall of the inner side of the rotating drum (3), the buffer mechanism (7) conveys air to the interior of the air storage drum (6) through an air pipe (20) to increase the air pressure in the air storage drum (6), and the air storage drum (6) can generate pneumatic thrust on the poking pieces (5) to enable the poking pieces (5) to drive the;
the fan blade assembly further comprises an annular cylinder (28), the rotating cylinder (3) is located on the inner side of the annular cylinder (28) and shares a central axis with the annular cylinder (28), a plurality of blades (4) are arranged between the outer side wall of the rotating cylinder (3) and the inner side wall of the annular cylinder (28), the blades (4) and the central axis of the rotating cylinder (3) form an inclination angle of 3-8 degrees, an outward-extending outer flange (29) is fixed on the side edge, away from the brushless motor (1), of the outer peripheral wall of the annular cylinder (28), and a plurality of fin plates (30) are fixed between the outer flange (29) and the outer peripheral wall of the annular cylinder (28).
2. The fan blade device for the brushless fan according to claim 1, wherein: the rotating drum (3) can only slide back and forth along the axis direction of the rotating shaft of the brushless motor (1) in the rotating shaft of the brushless motor (1), a locking plate (8) used for abutting and buckling the rotating drum (3) can be sleeved at the end part of the rotating shaft of the brushless motor (1), and a nut (9) used for limiting the rotating drum (3) on the rotating shaft is connected with the end part of the rotating shaft of the brushless motor (1) in a threaded manner.
3. The fan blade device for the brushless fan according to claim 1, wherein: the multiple poking pieces (5) on the peripheral wall of the inner side of the rotary drum (3) are arranged at equal intervals along the circumferential direction, the spraying direction of the air storage cylinder (6) points to the poking pieces (5), two ends of the blades (4) are respectively vertically and fixedly connected to the outer side wall of the rotary drum (3) and the inner side wall of the ring drum (28), the multiple blades (4) are arranged at equal intervals along the circumferential direction, and the multiple fin plates (30) are arranged at equal intervals along the circumferential direction.
4. The fan blade device for the brushless fan of claim 3, wherein: the utility model discloses a brushless motor (1) rotating shaft, including the shell of brushless motor (1), the open end of rotary drum (3) can overlap in the shell outside of brushless motor (1), and leaves the clearance between the inner wall of rotary drum (3) and the shell of brushless motor (1), buffer gear is including fixing axle sleeve (11) on brushless motor (1) shell, the one end that brushless motor (1) shell was kept away from in axle sleeve (11) is fixed with the lantern ring (12), and the periphery wall of lantern ring (12) is spherical structure, the outside in brushless motor (1) pivot is all established to axle sleeve (11) and lantern ring (12) cover, and brushless motor (1) pivot, axle sleeve (11) and lantern ring (12) sharing the central axis.
5. The fan blade device for the brushless fan according to claim 4, wherein: the outer peripheral wall of the lantern ring (12) is connected with a rotating ring (13) in a spherical hinge mode, a plurality of sliding cylinders (15) are arranged between the rotating ring (13) and the shell of the brushless motor (1), one end of the sliding cylinder (15) is actively connected to the shell of the brushless motor (1) in a fixed shaft manner, the inner side of the sliding cylinder (15) is connected with a piston plate (16) in a sliding manner, and the piston plate (16) is connected with one end of the sliding cylinder (15) far away from the shell of the brushless motor (1) through a spring I (17), one side of the piston plate (16) departing from the shell of the brushless motor (1) is vertical and is fixedly connected with a pull rod (18), one end of the pull rod (18) far away from the piston plate (16) penetrates through the end wall of the corresponding sliding cylinder (15), and one end of the pull rod (18) positioned outside the sliding barrel (15) is fixedly connected with one side of the rotating ring (13) facing the shell of the brushless motor (1) in a rotating mode.
6. The fan blade device for the brushless fan according to claim 5, wherein: it is a plurality of slide cartridge (15) move towards the equidistant setting along the circumference, and slide cartridge (15) are connected with check valve one (19) and check valve two (21) on being close to the one end lateral wall of brushless motor (1) shell, check valve two (21) are linked together through trachea (20) and gas receiver (6), the inboard of the directional slide cartridge (15) of the direction that switches on of check valve one (19), the directional gas receiver (6) of the direction that switches on of check valve two (21).
7. The fan blade device for the brushless fan according to claim 5, wherein: the buffering mechanism further comprises a convex ring (10) fixed on the end wall of the inner side of the rotary drum (3), the convex ring (10) and the rotary drum (3) share the central axis, one side, facing the convex ring (10), of the rotary ring (13) is embedded with a plurality of balls (14) at equal intervals along the circumferential direction, the balls (14) can rotate freely on the rotary ring (13), the convex ring (10) can be in abutting contact with the balls (14), and the balls (14) can roll on the convex ring (10).
8. The fan blade device for the brushless fan of claim 7, wherein: the inside of air receiver (6) is close to gas outlet port department and is fixed with solenoid valve (25), adopt behind the circuit connection mode of establishing ties again with brushless motor (1) adoption parallelly connected circuit connection solenoid valve (25) and time relay (27).
9. The fan blade device for the brushless fan of claim 8, wherein: the inside sliding connection of gas receiver (6) has slide (22), slide (22) are connected through spring two (23) and the one end of keeping away from the port of giving vent to anger with gas receiver (6), be provided with spacing ring (24) between solenoid valve (25) and slide (22), spacing ring (24) are fixed on the inner wall of gas receiver (6), and slide (22) can support the knot contact with spacing ring (24), be connected with relief valve (26) on the lateral wall of gas receiver (6), relief valve (26) are located the intermediate position of solenoid valve (25) and spacing ring (24), trachea (20) also are located the intermediate position of solenoid valve (25) and spacing ring (24) with the link of gas receiver (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011087852.0A CN112228369B (en) | 2020-10-13 | 2020-10-13 | Fan blade device for brushless fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011087852.0A CN112228369B (en) | 2020-10-13 | 2020-10-13 | Fan blade device for brushless fan |
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| CN112228369A true CN112228369A (en) | 2021-01-15 |
| CN112228369B CN112228369B (en) | 2022-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011087852.0A Active CN112228369B (en) | 2020-10-13 | 2020-10-13 | Fan blade device for brushless fan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114522553A (en) * | 2022-02-28 | 2022-05-24 | 上海沪析实业有限公司 | Brushless motor shearing emulsifying machine capable of continuously working |
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| CN205937220U (en) * | 2016-08-17 | 2017-02-08 | 芜湖美智空调设备有限公司 | Wind wheel, axial fan , cabinet air conditioner and air conditioner |
| US20190383295A1 (en) * | 2018-06-15 | 2019-12-19 | Euclid Design Group, Llc | Box fan apparatus with multi-adaptive suspension |
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| FR2801647A1 (en) * | 1999-11-30 | 2001-06-01 | Valeo Thermique Moteur Sa | DEVICE FOR FIXING A FAN PROPELLER ON A MOTOR SHAFT |
| JP2003232296A (en) * | 2002-02-08 | 2003-08-22 | Sharp Corp | Blower fan |
| CN105782111A (en) * | 2016-05-06 | 2016-07-20 | 浙江希尔富电气有限公司 | Blowing type wind wheel of brushless fan |
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| US20190383295A1 (en) * | 2018-06-15 | 2019-12-19 | Euclid Design Group, Llc | Box fan apparatus with multi-adaptive suspension |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114522553A (en) * | 2022-02-28 | 2022-05-24 | 上海沪析实业有限公司 | Brushless motor shearing emulsifying machine capable of continuously working |
| CN114522553B (en) * | 2022-02-28 | 2024-03-12 | 上海沪析实业有限公司 | Brushless motor shearing emulsifying machine capable of continuously working |
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| Publication number | Publication date |
|---|---|
| CN112228369B (en) | 2022-05-03 |
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