CN107191396B - A kind of magnetic suspension scavenger fan - Google Patents
A kind of magnetic suspension scavenger fan Download PDFInfo
- Publication number
- CN107191396B CN107191396B CN201710411879.2A CN201710411879A CN107191396B CN 107191396 B CN107191396 B CN 107191396B CN 201710411879 A CN201710411879 A CN 201710411879A CN 107191396 B CN107191396 B CN 107191396B
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- China
- Prior art keywords
- suspension portion
- suspension
- magnetic
- fixed part
- scavenger fan
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Classifications
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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
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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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
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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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
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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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
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for
Abstract
The present invention relates to a kind of magnetic suspension scavenger fan, states magnetic suspension scavenger fan and be in rate of evacuation and air parameter information that the real-time rotary speed information that the control unit being set on the first fixed part when operational process measures the suspension portion based on speed probe obtains and measure reaction force F of the suspension portion by air3, the suspension portion self gravity G and the first magnet being set on the first fixed part attraction F that the second magnet being set in the suspension portion is generated1Setting generates corresponding changing magnetic field to form the directed force F to the suspension portion by the current strength of balance coil in real time2And make the suspension portion by G, F1、F2And F3In the case where realize vertical direction stress balance and in suspend.
Description
Technical field
The present invention relates to a kind of magnetic levitation system more particularly to a kind of magnetic suspension scavenger fans.
Background technique
Magnetic levitation technology refers to a kind of technology for overcoming gravity that object is made to suspend using magnetic force.Current suspension technology is main
It suspends including magnetic suspension, light suspension, acoustic levitation, pneumatic floating, the electrically floating, particle beams etc., wherein magnetic levitation technology comparative maturity.
Magnetic levitation technology (electromagnetic levitation, electromagnetic suspension) abbreviation EML technology
(or EMS technology).Magnetic levitation technology way of realization is relatively more, and can be mainly divided into system cannot from steady driven suspension and system
From steady active levitation etc..
The system of magnetic levitation technology is made of, wherein actuator packet rotor, sensor, controller and 4 part of actuator
Include electromagnet and power amplifier two parts.Assuming that on reference position, the rotor disturbance downward by one can deviate from it
Reference position, at this moment sensor detects that rotor deviates the displacement of reference point, the position that the microprocessor as controller will test
Shifting is transformed into control signal, and then this control signal is converted into control electric current by power amplifier, and control electric current is executing magnetic
Magnetic force is generated in iron, to drive rotor back to original equilbrium position.Therefore, no matter rotor is by disturbing downward or upward
Dynamic, rotor can be in stable equilibrium state always.
English physicist Earnshow proposes maglev concept earliest, points out simultaneously: depending merely on permanent magnet is not
One ferromagnet can be held to the suspended state of free and stable in all six freedom degrees.The U.S., the experts such as France were once
It is proposed that object gets rid of several guesses -- the namely maglev early stage model of self gravity resistance and high efficiency operation.And it lists
A possibility that magnetic suspension train of no frictional resistance uses.However, at that time due to science and technology and material limitation magnetic suspension
Train is only in the guess stage, does not propose a practical ways to realize this target.The Herman of Germany agrees to wear
You have applied for this patent of magnetic suspension train.In the 1960s, occurring 3 manned air cushion vehicle experiment systems in the world
System, it is the system studied earliest magnetic suspension train.With the development of technology, the especially appearance of Solid State Electronics,
Original very huge control equipment is set to become very light and handy, this just provides the possibility of realization to magnetic suspension train technology.
1969, the Ma Fayi of German traction locomotive company developed small-sized magnetic suspension train system model, was named as TR01 type later,
Vehicle speed per hour on 1km track reaches 165km, this is first milestone of Development of Magnetic Levitation Trains.70,80 years 20th century
Generation, maglev train system continue that operation is tested and implemented in Thyssen Henschel.Germany starts to name this set magnetic suspension system
System is " magnetic suspension ".With the continuous reinforcement of world industry national economic strength, to improve traffic capacity to adapt to it
The needs of economic development, the developed countries such as Germany, Japan, the U.S., Canada, France, Britain start to prepare carry out magnetcisuspension in succession
The exploitation of floating transportation system.In the contention of manufacture magnetic suspension train, Japan and Germany are two big rivals.Japanese is electronic
Floated magnetic suspension train creates the Japanese tidemark of speed per hour 430km on the test wire of one section of 74km long of Miyazaki.
The levitated superconducting magnet train that Japan's in April, 1999 develops reaches speed per hour 550km on experiment line, and effort in 20 years is passed through by Germany,
Technically become mature, there is the level for building operating line.
The hot spot studied both at home and abroad is magnetic suspension bearing and magnetic suspension train, and most widely used is magnetic suspension bearing.
It it is contactless, without friction, long service life, without lubrication and high-precision etc. special advantage cause countries in the world scientific circles
Special attention, domestic and foreign scholars and business people have poured into it great interest and research enthusiasm.
Magnetic suspension is that object is made to be in the equilibrium state without friction, contactless suspension, magnetic suspension using suspension magnetic force
Seem simple, but the realization of specific magnetic suspension suspension characteristic but experienced a very long years.Due to magnetic levitation technology
Principle is to integrate electromagnetism, electronic technology, the typical electromechanical for controlling engineering, signal processing, mechanics, dynamics
Change new and high technology.Along with the hair of electronic technology, control engineering, signal processing component, electromagnetic theory and novel Electromagnetic Material
The further research of exhibition and rotor dynamics, it is mysterious on the one hand that magnetic suspension has unlocked it therewith.
Traditional scavenger fan usually based on fixed ornaments, has rotation to show, also in people's visual presence with electric fan
Full weight power is supported in exhibition booth, by being driven by electricity, generates noise, for a long time operating big energy-consuming.
Summary of the invention
The purpose of the present invention is to overcome the deficiencies of the prior art, and providing one kind can be reduced energy consumption, noiseless, exhibition view
Feel the good magnetic suspension scavenger fan of effect.The magnetic suspension scavenger fan is at least by the first fixed part, suspension portion and fixed column structure
At first fixed part and floating parts are not socketed on fixed column；The magnetic suspension scavenger fan is set when being in operational process
The emptying that the control unit being placed on the first fixed part is obtained based on the real-time rotary speed information that speed probe measures the suspension portion
Rate and air parameter information and measure reaction force F of the suspension portion by air3, the suspension portion self gravity G and
It is set to the attraction F that the first magnet on the first fixed part generates the second magnet being set in the suspension portion1It sets in real time
It sets through the current strength of balance coil to generate corresponding changing magnetic field to form the directed force F to the suspension portion2
And make the suspension portion by G, F1、F2And F3In the case where realize vertical direction stress balance and in suspend.Further
Ground, the control unit based on the rotating part of acquisition to the exclusion rate of air and the density parameter information of air, to balance coil
Current strength adjust to complete to the magnetic force F in suspension portion2Adjusting, be in different rotating speeds tune in suspension portion to realize
Section and the magnetic suspension scavenger fan are under the conditions of different air environments, can guarantee the suspension portion in the process of running
In stress balance and it is in suspended state.
According to a preferred embodiment, first fixed part is at least additionally provided with powered coil, the control unit base
It is adjusted in revolving speed gear of the user to the magnetic suspension scavenger fan and completes the corresponding sense of current strength adjusting realization in powered coil
The intensity adjustment in magnetic field is answered to complete the rotational speed regulation of the rotor in suspension portion and open speed probe and air biography simultaneously
Sensor carries out the rotary speed information in the suspension portion and the real-time acquisition of surrounding air information；The control unit is based on speed probe
The suspension portion is measured in rotary course with the real-time rotary speed information data of air borne sensor acquisition and real-time air information data
In real-time reaction force F by air3, and the electric current by increaseing or decreasing the balance coil in real time, it increases or reduces
Magnetic force F of the magnetic field that the suspension portion is generated by balance coil to the suspension portion2To realize suspension portion by G, F1、
F2And F3In the case where realize vertical direction stress balance.
According to a preferred embodiment, the magnetic suspension scavenger fan be in when open stage the suspension portion from
The attraction F of body gravity G, first magnet1The magnetic force F that magnetic field is formed is generated with balance coil2Force action under to deviating from
The direction of first fixed part moves and rotates in moving process and revolving speed gradually accelerates until suspension portion fortune
Dynamic to cross station, the control unit detects the rotating speed data in the suspension portion in the suspension portion based on velocity sensor
Rotation speed be not less than the station pre-set velocity value when control the balance coil electric current reduce to weaken balance coil
The magnetic field strength of generation, so that the resultant force in the suspension portion is directed toward the first fixed part to make the suspension portion be back to the suspension
The station in portion is simultaneously rotated with preset rotation speed.Further, by magnetic force F2Adjusting, realize the suspension portion and opening
Pre-set velocity can be smoothly increased in journey, and returns back to station after completing speedup.
According to a preferred embodiment, the control unit disconnects power during user closes the scavenger fan
Coil current makes the suspension portion phased out under the action of air friction to cancel the power of the rotor rotation
It rotates and the current strength for uniformly reducing the balance coil within a preset time period is directed toward the resultant force in the suspension portion
First fixed part simultaneously drives the buffer component to rotate close to the buffer component of the first fixed part by frictional force, and is hindering
It is static under the drag effect of Buddhist nun's component.Further, quick under the action of damping member of the suspension portion static facilitates
The impeller is avoided to cause possible injury to the people of ambient enviroment or object.Meanwhile by the limiting section to the position in suspension portion
It sets limitation and avoids the random rebound that the suspension portion occurs during high velocity impact, avoid and the magnetic suspension is changed
The injury of the other components of air fan.
According to a preferred embodiment, the buffer component is hollow disc-shaped structure, towards the suspension portion
Side has the convex structure from the center of circle along disk radially, and the buffer part that the suspension portion is equipped with is hollow disc-shaped structure
And there is the groove-like structure from the center of circle along disk radially towards first fixed part side, so that the buffering
Portion and the buffer component have biggish contact area in contact process.
According to a preferred embodiment, first fixed part is at least provided with 5 groups of absolute coils, including uniform
Be distributed in the first fixed part circumferential direction for generate alternating magnetic field four groups of powered coils and with the same shaft balancing of fixed column
Coil；The powered coil generates electromagnetic induction with the rotor in suspension portion in the case where connecting alternating current, promotes rotor band
The rotation of movable vane wheel.
According to a preferred embodiment, the balance coil generates the magnetic force F to suspension portion in the case where energization2
The magnetic force F that the first magnet generates in the gravity G and first fixed part itself being subject to for neutral buoyancy portion1Resultant force in
It is all or part of.
According to a preferred embodiment, the first magnet being set on first fixed part and it is set to suspension portion
On the magnetic pole magnetic that is directed towards of the second magnet it is different.
According to a preferred embodiment, first fixed part, suspension portion and fixed column are coaxial, and described first is fixed
Portion and fixed column are rigidly connected, and the buffer component in first fixed part is socketed on fixation through half fastening-type of damping member
Column.
According to a preferred embodiment, first fixed part is cylindrical-shaped structure, and by nut realization and admittedly
The connection relationship of fixed column；First fixed part at least further includes pedestal and fixation member, and the pedestal is equipped with for shining
LED light, the loudspeaker for playing audio-frequency information.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of magnetic suspension scavenger fan of the invention；
Fig. 2 is the structural schematic diagram of the first fixed part in magnetic suspension scavenger fan of the invention；
Fig. 3 is a kind of force diagram of preferred embodiment in suspension portion in magnetic suspension scavenger fan of the invention；With
Fig. 4 is the force diagram of another preferred embodiment in suspension portion in magnetic suspension scavenger fan of the invention.
Reference signs list
1: the first fixed part, 2: the first magnet 3: powered coil
4: pedestal 4a:LED lamp plate 4b: loudspeaker
4c: control unit 5: fixed column 6: suspension portion
6a: buffer part 6b: the 6c: the second magnet of rotor
7: nut 8: fixing seat 9: balance coil
Specific embodiment
It is described in detail with reference to the accompanying drawings and examples.
Fig. 1 shows the structural schematic diagram of magnetic suspension scavenger fan of the invention.As shown in Figure 1, magnetic suspension of the invention
Scavenger fan is at least made of the first fixed part 1, suspension portion 6 and fixed column 5.
First fixed part 1, suspension portion 7 and fixed column 5 are coaxial.First fixed part 1, suspension portion 6 are socketed respectively
In fixed column 5.Buffer component in first fixed part 1 is socketed on fixed column 5 through half fastening-type of damping member.Described first
Fixed part 1 is cylindrical-shaped structure, and realizes the connection relationship with fixed column 5 by nut 9.First fixed part 1 at least wraps
Include the first magnet 2, coil, pedestal 4 and fixation member.First magnet 2 be socketed on the first fixed part 1 fixation member it
On, for providing the pulling force to suspension portion 6.First fixed part 1 is at least provided with 5 groups of absolute coils, as shown in Fig. 2, wherein
Including be uniformly distributed in 1 circumferential direction of the first fixed part for generate alternating magnetic field four groups of powered coils 3 and with fixed column 5
Coaxial balance coil 9.The powered coil 3 generates electromagnetism with the rotor 6b in suspension portion 6 in the case where connecting alternating current
Induction promotes rotor 6b impeller to rotate.
The balance coil 9 generates the magnetic force F to suspension portion 6 in the case where energization2It experiences certainly for neutral buoyancy portion 6
To gravity G and first fixed part 1 in 2 pairs of suspension portions 6 of the first magnet generate magnetic force F1Resultant force in whole or portion
Point.Preferably, when the suspension portion 6 does not have started rotation, suspension portion 6 is by self gravity G, magnetic force F1With magnetic force F2, thus
The magnetic force F2For balancing gravity G and F1.When the suspension portion 6 starts rotation, suspension portion 6 is by self gravity G, magnetic force
F1, magnetic force F2With reaction force F3, thus the magnetic force F2Only required to balancing gravity G and F1The downward resultant force in part.
The pedestal 4 is equipped with for luminous LED light 4a, the loudspeaker 4b for playing audio-frequency information.According to one
Preferred embodiment, the loudspeaker 4b are connected by way of wiredly and/or wirelessly with audio client end of playing back, for real
The broadcasting of existing all kinds of audio-frequency informations.The LED light 4a is connected by way of wiredly and/or wirelessly with light controller, is used for
Realize the adjusting of the luminous parameters such as the LED light 4a luminous intensity and luminescent color or luminescent condition.
It is additionally provided on the pedestal 4 for realizing the control unit 4c of 9 current control of the powered coil 3 and balance coil,
The control unit 4c adjusts current strength in completion powered coil 3 based on revolving speed gear of the user to the scavenger fan and adjusts simultaneously
The intensity adjustment of induced magnetic field is realized to complete the rotational speed regulation of 6 upper rotor part 6b of suspension portion.
According to a preferred embodiment, when revolving speed gear is turned up in user, the control unit 4c is based on user to described
The revolving speed gear of scavenger fan, which is adjusted, completes current strength increase in powered coil 3, to realize what the powered coil 3 generated
The enhancing of the intensity of induced magnetic field, so that the power enhancing of 6 upper rotor part 6b of the suspension portion rotation is pushed, to complete described outstanding
Floating portion 6 is spun up, until terminating when the rotational power in the suspension portion 6 is equal with the frictional force that air generates after accelerating
Accelerator, and at the uniform velocity rotated with present speed.
When user turns down revolving speed gear, the control unit 4c has been adjusted based on revolving speed gear of the user to the scavenger fan
Reduce at current strength in powered coil 3, to realize the decrease of the intensity for the induced magnetic field that the powered coil 3 generates, makes
The power of 6 upper rotor part 6b of the suspension portion rotation must be pushed to weaken, so that the rotation for completing the suspension portion 6 is slowed down, until subtracting
When the rotational power in the suspension portion 6 is equal with the frictional force that air generates after speed, terminate moderating process, and even with present speed
Speed rotation.
According to a preferred embodiment, 6 velocity of rotation of suspension portion is bigger, and the frictional force by air is got over
Greatly.6 revolving speed of suspension portion is smaller, and the frictional force being subject to is smaller.Therefore, each time speed increase or decrease all be rotational power with
The process of air friction rebalancing.
When the magnetic suspension scavenger fan is in running order, the control unit 4c is based on real-time by speed probe
The rotary speed information in the suspension portion 6 of acquisition is based on air to obtain the volume that impeller in unit time suspension portion 6 arranges air
The information such as current gas pressure, humidity that sensor measures are to obtain atmospheric density information, so that the control 4c is based on suspension portion 6
Rate of evacuation and atmospheric density information measure the suspension portion 6 in rotary course by the reaction force F of air3, and pass through
The size of current for adjusting the balance coil 9 completes magnetic force F suffered by the suspension portion 62Adjusting, to realize that suspension portion 6 exists
Reach stress balance on vertical direction and keeps suspended state.As shown in figure 3, the stress balance is in 6 rotation process of suspension portion
In, 6 self gravity G of suspension portion and attraction F of the suspension portion by the first magnet 2 in the first fixed part 11The sum of be equal to suspension portion
The magnetic force F in the magnetic field that 7 balance coils 11 being subject to generate2The reaction force F for the air being subject in rotary course with suspension portion 63
The sum of, it is the suspension portion 6 suffered resultant force F in the vertical directionIt closesIt is zero, or goes to zero.
According to a preferred embodiment, the magnetic suspension scavenger fan is applicable not only to air environment, applies also for
Other gaseous environments, the reaction force F in other gaseous environments3Calculating process only need for air parameter to be adjusted to corresponding gas
Parameter.
Wherein the size of current of the balance coil 9 is adjusted in real time based on the rotary speed information in the suspension portion 6.According to one
Preferred embodiment, when revolving speed gear, which is turned up, in user accelerates to suspension portion 6, the revolving speed in the suspension portion 6 gradually becomes
Greatly, so that impeller ventilation ability enhancing in suspension portion 6, the impeller increase the active force of air, so that should add
Air increases the reaction force of impeller during speed, that is to say, the air that suspension portion 6 is subject to described in accelerator is counter to be made
Firmly F3It is lasting to increase, so that the resultant force F in the suspension portion 6It closesHave the tendency that being increased up along the side of fixing seat 10.The control
Portion 4c processed increases information based on the revolving speed in the suspension portion 6 acquired in real time by speed probe, measures the suspension portion 6 and is rotating
In the process by the real-time reaction force F of air3, and the electric current by reducing the balance coil 9 in real time, reduce the suspension
Magnetic force F of the magnetic field that portion 6 is generated by balance coil 9 to the suspension portion 62, to realize that suspension portion 6 reaches stress balance guarantor
Hold suspended state.
According to a preferred embodiment, when user, which turns down revolving speed gear, slows down to suspension portion 6, the suspension
The revolving speed in portion 6 is gradually reduced, so that impeller ventilation reduced capability, the impeller subtract the active force of air in suspension portion 6
It is small, so that air reduces the reaction force of impeller in the moderating process, that is to say, the suspension portion described in moderating process
The 6 air reaction force F being subject to3It is lasting to reduce, so that the resultant force F in the suspension portion 6It closesThere is the direction along the first fixed part 1
The trend of upper increase.The control unit 4c reduces information based on the revolving speed in the suspension portion 6 acquired in real time by speed probe, surveys
The suspension portion 6 is obtained in rotary course by the real-time reaction force F of air3, and by increasing the balance coil 9 in real time
Electric current, increase magnetic field that the suspension portion 6 is generated by balance coil 9 to the magnetic force F in the suspension portion 62, to realize outstanding
Floating portion 6 reaches stress balance and keeps suspended state.
First fixed part 1 at least further includes damping member and buffer component.The damping member is used for described outstanding
It is opposite with 6 direction of rotation of suspension portion that floating portion 6 is that the suspension portion 6 is provided in the case where rotating with first fixed part 1 fitting
Resistance, for realizing the function of 6 fast braking of suspension portion.
The buffer component is hollow disc-shaped structure, is had from the center of circle in the side towards the suspension portion 6 along disk
Convex structure radially.The buffer part 6a that the suspension portion 6 is equipped with is hollow disc-shaped structure and towards described the
One fixed side has the groove-like structure from the center of circle along disk radially.So that the buffer part 6a delays with described
Rush component has biggish contact area in contact process.
During user closes the scavenger fan, the control unit 4c disconnects 3 electric current of powered coil to cancel institute
The power for stating rotor 6b rotation makes the suspension portion 6 phased out rotation under the action of air friction, and preset
The current strength for uniformly reducing the balance coil 9 in period makes the resultant force direction described first in the suspension portion 6 fixed
Portion 1, and slowly close to the buffer component of the first fixed part 1.The suspension portion 6 drives institute in quiescing process, through frictional force
Buffer component rotation is stated, and static under the drag effect of damping member.
According to a preferred embodiment, in order to enable user is described outstanding when closing the magnetic suspension scavenger fan
Floating portion 6 is static as early as possible, and the control unit 4c simultaneously switches off the electric current of the powered coil 3 and balance coil 9, so that described
Suspension portion 6 is quick close to first fixed part 1 under the action of the attraction F1 of self gravity G and the first magnet 2, so that institute
It is quickly quiet under the action of the frictional force of air friction and buffer component and under the resistance of the damping member to state suspension portion 6
Only, fast speed is for example needed to realize the static function in suspension portion 6, the suspension portion 6 in the event of a loss of power to realize
Quick static help avoid the impeller possible injury caused to the people of ambient enviroment or object.
Preferably, the fixed column 5 is equipped with limiting section.When 1 Contact of the suspension portion 6 and the first fixed part, institute
Limiting section pop-up is stated, realizes and 7 position of suspension portion is engaged.Institute is avoided to the position limitation in suspension portion 6 by the limiting section
The random rebound that suspension portion 6 occurs during the first fixed part of high velocity impact 1 is stated, avoids and takes a breath to the magnetic suspension
The injury of the other components of fan.
Preferably, the fixed column 5 is hung on working face by fixing seat 8.The working face can be the portions such as roof
Position.
Preferably, first be set on first fixed part 1 magnet 2 and the second magnet for being set in suspension portion 6
The magnetic pole magnetic that 6c is directed towards is different, so that first magnet 2 generates the magnetic force F to suspension portion 61。
According to a preferred embodiment, when the suspended substance 6 is deviateed equilbrium position by certain external cause in the horizontal direction
When, when that is to say that the suspended substance 6 deviates the axle center or central axes of the fixed column 5, the suspended substance 6 stress such as Fig. 4 institute
Show, wherein having ignored the power being subject in suspended substance rotary course and being used for air friction.As shown in figure 4, suspension portion 6 by
The attraction F of self gravity G, the first magnet 21, balance coil 9 generate magnetic field force F2With suspension portion 6 in rotary course by
Air reaction force F3.When 6 horizontal position of suspension portion shifts, attraction F1In both vertically as well as horizontally water
It is respectively provided with component F11And F12.Gravity G, magnetic field force F2The reaction force F for the air being subject to suspension portion 63Action direction still
In vertical direction.Wherein F12Direction be directed toward the fixed column 5 central axes direction and the suspension portion 6 offset direction phase
Instead, so that the suspension portion 6 can restore to equilibrium state.Also, when the suspension portion 6 is returning back to equilbrium position mistake
Cheng Zhong, the restoring force F being subject to12It is gradually reduced, facilitates suspension portion and slowly and steadily return back to equilbrium position.It that is to say,
When the suspension portion 6 shifts in the horizontal direction, the suspension portion 6 will receive the recovery for returning back to former equilbrium position
Power F12, so that suspension portion 6 be promoted to balance.
Embodiment 1
In conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4 by magnetic suspension scavenger fan of the invention be opened into closing flow path for.It is described
Magnetic suspension scavenger fan workflow includes fan opening process, fan work process and fan closing process.
In fan opening process, the powered coil 3 and balance coil 9 are powered and generate magnetic field, while the limiting section
Closure, the suspension portion 6 is in self gravity G, the attraction F of the first magnet 21The magnetic field that magnetic field is formed is generated with balance coil 9
Power F2Force action under moved to 8 direction of fixing seat, and to suspension portion 6 described in 8 motion process of fixing seat
Generate rotary motion, the suspension portion 6 into 8 approach process of fixing seat wheel speed gradually accelerates thus the sky that is subject to
The reaction force F of gas3It is gradually increased, the suffered resultant force in the suspension portion 6 is zero when the suspension portion 6 moves to station.Institute
State the stress balance position that station is the suspension portion 6.
After the suspension portion 6 moves to equilbrium position, will be continued with certain speed it is close to the fixing seat 8,
When rotation speed in the suspension portion 6 is not less than the station pre-set velocity value, the control unit 4c controls the balanced line
The electric current of circle 9 reduces, to weaken the magnetic field strength of the generation of balance coil 9, consolidates so that the resultant force in the suspension portion 7 is directed toward first
Determine portion, so that the suspension portion 6 be made slowly to be back to the station in the suspension portion 6, and is rotated with preset rotation speed, complete the fan
Opening process.
When the suspension portion 6 is in station, attraction of the suspension portion 6 by self gravity G, the first magnet 2 on vertical direction
Power F1, balance coil 9 generate magnetic field magnetic force F2With the reaction force F for the air being subject in rotary course3Resultant force be
Zero.Rotary power and air the rubbing to suspension portion 6 that magnetic field applies are generated by powered coil 3 in 6 horizontal plane of suspension portion
It is equal to wipe power, in the horizontal plane with joint efforts be zero.
The fan work process includes the fan speedup process and fan moderating process at station.Wherein fan speedup
Process is adjusted based on revolving speed gear of the user to the scavenger fan for the control unit 4c and completes current strength in powered coil 3
Increase, to realize the enhancing of the intensity for the induced magnetic field that the powered coil 3 generates, turns in the suspension portion 6 so that pushing
The power enhancing of sub- 6b rotation, so that spinning up for the suspension portion 6 is completed, until the rotation of suspension portion 6 is dynamic after accelerating
When power is equal with the frictional force that air generates, terminate accelerator, and at the uniform velocity rotate with present speed.
Meanwhile when user's height-regulating revolving speed gear accelerates suspension portion 6, the revolving speed in the suspension portion 6 is become larger,
So that impeller ventilation ability enhancing in suspension portion 6, the impeller increases the active force of air, so that the acceleration
Air increases the reaction force of impeller in journey.It that is to say, the air reaction force that the suspension portion 6 described in accelerator is subject to
F3It is lasting to increase, so that the resultant force F in the suspension portion 6It closesHave the tendency that being increased up along the side of pedestal 9.
Rotary speed information of the control unit 4c based on the suspension portion 7 acquired in real time by speed probe is to obtain unit
Impeller arranges the volume of air in time suspension portion 6, and the information such as current gas pressure, humidity measured based on air borne sensor to
Atmospheric density information is obtained, so that the control 4c is based on 6 rate of evacuation of suspension portion and atmospheric density information measures the suspension
Portion 6 is in rotary course by the reaction force F of air3, and the electric current by reducing the balance coil 9 in real time, reduce institute
Magnetic field that suspension portion 6 is generated by balance coil 9 is stated to the magnetic force F in the suspension portion 62, to realize that suspension portion 6 reaches stress
Balance keeps suspended state.
Wherein fan moderating process is that the control unit 4c has been adjusted based on revolving speed gear of the user to the scavenger fan
Reduce at current strength in powered coil 3, to realize the decrease of the intensity for the induced magnetic field that the powered coil 3 generates, makes
The power of 6 upper rotor part 6b of the suspension portion rotation must be pushed to weaken, so that the rotation for completing the suspension portion 6 is slowed down, until subtracting
When 6 rotational power of suspension portion is equal with the frictional force that air generates after speed, terminate moderating process, and at the uniform velocity with present speed
Rotation.
Meanwhile when user turns down revolving speed gear and slows down to suspension portion 6, the revolving speed in the suspension portion 6 is gradually reduced,
So that impeller ventilation reduced capability in suspension portion 6, the impeller reduces the active force of air, so that the deceleration
Air reduces the reaction force of impeller in journey.It that is to say, the air reaction force that the suspension portion 6 described in moderating process is subject to
F3It is lasting to reduce, so that the resultant force F in the suspension portion 6It closesHave the tendency that being increased up along the side of the first fixed part 1.The control
Portion 4c processed reduces information based on the revolving speed in the suspension portion 6 acquired in real time by speed probe, measures the suspension portion 6 and is rotating
In the process by the real-time reaction force F of air3, and the electric current by increasing the balance coil 9 in real time, increase the suspension
Magnetic force F of the magnetic field that portion 6 is generated by balance coil 9 to the suspension portion 62, to realize that suspension portion 6 reaches stress balance guarantor
Hold suspended state.
The fan closing process is that the control unit 4c disconnects 3 electric current of powered coil to cancel the rotor 6b rotation
Power make the suspension portion 6 phased out rotation under the action of air friction, and within a preset time period uniformly
The current strength for reducing the balance coil 9 makes the impeller in the suspension portion 6 fixed close to first under air reaction force
The buffer component in portion 1, by frictional force drive first fixed part 1 rotate and under the drag effect of the damping member it is quiet
Only.Preferably, limiting section pop-up and by the position in the suspension portion 6 when the suspension portion 6 is contacted with first fixed part 1
It is locked between the limiting section and the first fixed part 1.The suspension portion 6 is avoided in the mistake of the first fixed part of high velocity impact 1
The random rebound occurred in journey avoids the injury to the other components of magnetic suspension scavenger fan.
It should be noted that above-mentioned specific embodiment is exemplary, those skilled in the art can disclose in the present invention
Various solutions are found out under the inspiration of content, and these solutions also belong to disclosure of the invention range and fall into this hair
Within bright protection scope.It will be understood by those skilled in the art that description of the invention and its attached drawing are illustrative and are not
Constitute limitations on claims.Protection scope of the present invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of magnetic suspension scavenger fan, which is characterized in that the magnetic suspension scavenger fan is at least by the first fixed part (1), outstanding
Floating portion (6) and fixed column (5) are constituted, and first fixed part (1) and suspension portion (6) are socketed on fixed column (5) respectively；
When the magnetic suspension scavenger fan is in operational process, the control unit (4c) being set on the first fixed part (1) is based on turning
The real-time rotary speed information that fast sensor measures the suspension portion (6) obtains rate of evacuation, obtains air letter based on air borne sensor
Breath, to measure reaction force F of the suspension portion (6) by air3, suspension portion (6) the self gravity G and be set to the
The attraction F that the first magnet (2) on one fixed part (1) generates the second magnet (6c) being set on the suspension portion (6)1,
Setting generates corresponding changing magnetic field to form the balance coil by the current strength of balance coil (9) in real time
(9) to the directed force F of the suspension portion (6)2And make the suspension portion (6) by suspension portion (6) the self gravity G,
Attraction F of first magnet (2) to second magnet (6c)1, the balance coil (9) is to the suspension portion (6)
Directed force F2Reaction force F with the suspension portion (6) by air3In the case where realize and vertical direction stress balance and be in
It suspends.
2. magnetic suspension scavenger fan as described in claim 1, which is characterized in that first fixed part (1) is at least additionally provided with
Powered coil (3), the control unit (4c) are adjusted based on revolving speed gear of the user to the magnetic suspension scavenger fan and complete power
Current strength is adjusted in coil (3), the intensity adjustment of corresponding induced magnetic field is realized, to complete the rotor on suspension portion (6)
The rotational speed regulation of (6b), and open simultaneously speed probe and air borne sensor carry out the suspension portion (6) rotary speed information and
The real-time acquisition of air information；
Real-time rotary speed information data and real-time air of the control unit (4c) based on speed probe and air borne sensor acquisition
Information data measures the suspension portion (6) in rotary course by the reaction force F of real-time air3, and by increasing in real time
Or reduce the electric current of the balance coil (9), increase or reduce the magnetic field that the suspension portion (6) is generated by balance coil (9)
To the directed force F of the suspension portion (7)2To realize suspension portion (6) by suspension portion (6) the self gravity G, described the
Attraction F of one magnet (2) to second magnet (6c)1, the balance coil (9) is to the directed force F of the suspension portion (6)2
Reaction force F with the suspension portion (6) by air3In the case where realize vertical direction stress balance.
3. magnetic suspension scavenger fan as claimed in claim 2, which is characterized in that the magnetic suspension scavenger fan, which is in, opens rank
Duan Shi, the suspension portion (6) is in self gravity G, first magnet (2) to the attraction F of second magnet (6c)1And institute
Balance coil (9) is stated to the directed force F of the suspension portion (6)2Force action under, to away from first fixed part (1)
Direction movement, and rotate in moving process and revolving speed is gradually accelerated to move across station up to the suspension portion (6),
The control unit (4c) is based on the real-time rotary speed information that speed probe detects the suspension portion (6), in the suspension
When the revolving speed in portion (6) is not less than the station preset rotation speed, the electric current for controlling the balance coil (9) reduces to weaken balanced line
The magnetic field strength that (9) generate is enclosed, so that the resultant force in the suspension portion (6) is directed toward the first fixed part (1), to make the suspension portion
(6) it is back to the station of the suspension portion (6) and is rotated with preset rotation speed.
4. magnetic suspension scavenger fan as claimed in claim 3, which is characterized in that close the magnetic suspension scavenger fan in user
In the process, the control unit (4c) disconnects powered coil (3) electric current, so that the power of the rotor (6b) rotation is cancelled, so that
Suspension portion (6) phased out rotation under the action of air friction, and within a preset time period described in uniform reduction
The current strength of balance coil (9), so that the resultant force in the suspension portion (6) is directed toward first fixed part (1) and close to first
The buffer component of fixed part (1) drives the buffer component to rotate by frictional force, and quiet under the drag effect of damping member
Only.
5. magnetic suspension scavenger fan as claimed in claim 4, which is characterized in that the buffer component is hollow discoid knot
Structure has the convex structure from the center of circle along disk radially towards suspension portion (6) side, and the suspension portion (6) sets
Some buffer parts (6a) are hollow disc-shaped structure and have from the center of circle towards the first fixed part (1) side along disk radial direction
The groove-like structure of diverging.
6. the magnetic suspension scavenger fan as described in claim 4 or claim 5, which is characterized in that first fixed part (1)
At least provided with 5 groups of absolute coils, it is used to generate alternating magnetic field in the first fixed part (1) circumferential direction including being uniformly distributed in
Four groups of powered coils (3) and the balance coil (9) coaxial with fixed column (5)；
The powered coil (3) generates electromagnetic induction with the rotor (6b) on suspension portion (6) in the case where connecting alternating current, promotees
Rotate rotor (6b) impeller.
7. magnetic suspension scavenger fan as claimed in claim 6, which is characterized in that the balance coil (9) is the case where being powered
The lower generation balance coil is solid with described first for neutral buoyancy portion (6) self gravity G to the directed force F 2 of suspension portion (6)
The first magnet (2) is determined in portion (1) to all or part in the resultant force of the attraction F1 of second magnet (6c).
8. the magnetic suspension scavenger fan as described in claim 1 or claim 2, which is characterized in that it is solid to be set to described first
Determine the first magnet (2) on portion (1) and magnetic pole magnetic phase that the second magnet (6c) for being set on suspension portion (6) is directed towards
It is different.
9. the magnetic suspension scavenger fan as described in claim 4 or claim 5, which is characterized in that first fixed part
(1), coaxially, first fixed part (1) and fixed column (5) are rigidly connected for suspension portion (6) and fixed column (5), and described first is solid
The buffer component determined in portion (1) is socketed on fixed column (5) through half fastening-type of damping member.
10. the magnetic suspension scavenger fan as described in claim 1 or claim 2, which is characterized in that first fixed part
It (1) is cylindrical-shaped structure, and realize the connection relationship with fixed column (5) by nut (7)；
First fixed part (1) at least further includes pedestal (4) and fixation member, and the pedestal (4) is equipped with for shining
LED light (4a), the loudspeaker (4b) for playing audio-frequency information.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910158578.2A CN109667776B (en) | 2017-06-02 | 2017-06-02 | Suspension brake device for quickly and safely braking magnetic suspension ventilation fan |
| CN201910158579.7A CN109667777B (en) | 2017-06-02 | 2017-06-02 | Control part for adjusting and rebalancing rotating speed of magnetic suspension ventilation fan |
| CN201710411879.2A CN107191396B (en) | 2017-06-02 | 2017-06-02 | A kind of magnetic suspension scavenger fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710411879.2A CN107191396B (en) | 2017-06-02 | 2017-06-02 | A kind of magnetic suspension scavenger fan |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910158579.7A Division CN109667777B (en) | 2017-06-02 | 2017-06-02 | Control part for adjusting and rebalancing rotating speed of magnetic suspension ventilation fan |
| CN201910158578.2A Division CN109667776B (en) | 2017-06-02 | 2017-06-02 | Suspension brake device for quickly and safely braking magnetic suspension ventilation fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107191396A CN107191396A (en) | 2017-09-22 |
| CN107191396B true CN107191396B (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910158578.2A Active CN109667776B (en) | 2017-06-02 | 2017-06-02 | Suspension brake device for quickly and safely braking magnetic suspension ventilation fan |
| CN201710411879.2A Active CN107191396B (en) | 2017-06-02 | 2017-06-02 | A kind of magnetic suspension scavenger fan |
| CN201910158579.7A Active CN109667777B (en) | 2017-06-02 | 2017-06-02 | Control part for adjusting and rebalancing rotating speed of magnetic suspension ventilation fan |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910158578.2A Active CN109667776B (en) | 2017-06-02 | 2017-06-02 | Suspension brake device for quickly and safely braking magnetic suspension ventilation fan |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910158579.7A Active CN109667777B (en) | 2017-06-02 | 2017-06-02 | Control part for adjusting and rebalancing rotating speed of magnetic suspension ventilation fan |
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| CN (3) | CN109667776B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751267B (en) * | 2019-02-15 | 2023-07-21 | 罗伟玲 | Ceiling magnetic suspension fan blade |
| CN110030199B (en) * | 2019-03-29 | 2020-09-01 | 张则羿 | Normally-conducting attraction type magnetic suspension rotating system based on electromagnetic chuck |
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| US7135798B2 (en) * | 2003-07-25 | 2006-11-14 | Industrial Technology Reserach Institute | Magnetic suspension bearing |
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| CN2030668U (en) * | 1987-12-25 | 1989-01-11 | 张湘民 | Whirlwind ceiling fan |
| JP3168932B2 (en) * | 1997-01-29 | 2001-05-21 | 松下電器産業株式会社 | fan |
| CN2344590Y (en) * | 1998-09-17 | 1999-10-20 | 李功俊 | Ceiling-mounted lighting fan |
| JP2005076585A (en) * | 2003-09-02 | 2005-03-24 | Ebara Densan Ltd | Blowing device |
| TW200521350A (en) * | 2003-12-25 | 2005-07-01 | Delta Electronics Inc | Magnetic bearing system |
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- 2017-06-02 CN CN201910158578.2A patent/CN109667776B/en active Active
- 2017-06-02 CN CN201710411879.2A patent/CN107191396B/en active Active
- 2017-06-02 CN CN201910158579.7A patent/CN109667777B/en active Active
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| CN2292924Y (en) * | 1995-12-18 | 1998-09-30 | 顾庆良 | Magnetic suspension electric fan |
| US7135798B2 (en) * | 2003-07-25 | 2006-11-14 | Industrial Technology Reserach Institute | Magnetic suspension bearing |
| CN201255123Y (en) * | 2008-08-11 | 2009-06-10 | 龙佳宇 | Magnetic suspension type ceiling fan |
| WO2016154852A1 (en) * | 2015-03-30 | 2016-10-06 | 林圣梁 | Magnetic levitation fan device |
| CN205956026U (en) * | 2016-08-10 | 2017-02-15 | 上海工程技术大学 | Unsettled energy -conserving exhaust fan of active cell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109667776A (en) | 2019-04-23 |
| CN109667776B (en) | 2020-11-06 |
| CN109667777B (en) | 2020-11-06 |
| CN107191396A (en) | 2017-09-22 |
| CN109667777A (en) | 2019-04-23 |
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