CN108869356A - Fan - Google Patents
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- CN108869356A CN108869356A CN201810749397.2A CN201810749397A CN108869356A CN 108869356 A CN108869356 A CN 108869356A CN 201810749397 A CN201810749397 A CN 201810749397A CN 108869356 A CN108869356 A CN 108869356A
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- motor
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- fan blade
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 12
- 230000006870 function Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 241000219095 Vitis Species 0.000 description 3
- 235000009754 Vitis X bourquina Nutrition 0.000 description 3
- 235000012333 Vitis X labruscana Nutrition 0.000 description 3
- 235000014787 Vitis vinifera Nutrition 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- 238000003860 storage Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
-
- 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
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
-
- 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
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention discloses a kind of fan, and the fan includes nose assembly and support component, and the support component includes pedestal and support rod；The nose assembly includes bracket, motor installing frame, first motor and the second motor；Wherein, the bracket is installed on the support bar top, and can rotate around the support rod axis；The motor installing frame is installed on the bracket and can overturn in above-below direction relative to the bracket, is provided with motor mount in the middle part of the motor installing frame；The first motor is installed on the front side of the motor mount, and the first motor has first rotating shaft, is equipped with the first fan blade in the first rotating shaft；Second motor is installed on the rear side of the motor mount, and second motor has the second shaft, is equipped with the second fan blade in second shaft；First fan blade is opposite with the torsional direction of second fan blade.Three-dimensional omnidirectional's outlet air may be implemented in technical solution of the present invention.
Description
Technical field
The present invention relates to field of home appliance technology, in particular to a kind of fan.
Background technique
Electric fan can be divided into ceiling fan, desk fan, stand fan, wall fan, ventilation fan, air cooler according to different function and form
Etc. a variety of；Tube-axial fan, cross flow fan, centrifugal fan and cross-flow type wind can be divided into according to the difference of air inlet/outlet mode
Fan etc. is a variety of.Wherein, household desk fan and stand fan are mostly tube-axial fan, under normal conditions household desk fan and stand fan air quantity compared with
Small, in high tap position, air quantity is relatively slightly larger, but can generate biggish noise when high tap position Wind Volume, and use environment multi-pass is normal
Influence for interior, noise can be bigger.In addition, conventional electric fan blowing range is smaller, even if opening air-supply of shaking the head, also can only
It realizes and is interrupted air-supply in a fan-shaped region, cannot meet the needs a wide range of demand blown or blown at a distance.
Summary of the invention
The main object of the present invention is to propose a kind of fan, it is intended to which solving existing fan can not achieve asking of blowing on a large scale
Topic.
To achieve the above object, fan proposed by the present invention includes nose assembly and support component, the support component packet
Include pedestal and support rod；The nose assembly includes bracket, motor installing frame, first motor and the second motor；Wherein, the branch
Frame is installed on the support bar top, and can rotate around the support rod axis；The motor installing frame is installed on the bracket
And can be overturn in above-below direction relative to the bracket, motor mount is provided in the middle part of the motor installing frame；Described first
Motor is installed on the front side of the motor mount, and the first motor has first rotating shaft, is equipped in the first rotating shaft
First fan blade；Second motor is installed on the rear side of the motor mount, and second motor has the second shaft, described
Second fan blade is installed in the second shaft；First fan blade is opposite with the torsional direction of second fan blade.
Preferably, the fan further includes electric-controlled plate, and the electric-controlled plate is electrically connected the first motor and second electricity
Machine, and control the first motor and the second motor relative rotation；The electric-controlled plate includes rotating ratio adjustment module, gear
Adjustment module and steering adjustment module.
Preferably, the rotating ratio adjustment module adjusts and controls the rotational speed omega of the first motor1With second electricity
The rotational speed omega of machine2The ratio between
Preferably, the gear adjustment module includes the editing machine and memory of editable gear；The gear adjusts mould
Block further includes multiple preset gear selection keies and at least one customized gear selection key.
Preferably, the rotation side for turning to adjustment module for first motor and second motor described in synchronism switching
To；The steering adjustment module includes protective switch, described in the cutting in the first motor and second motor work
Turn to adjustment module.
Preferably, the branch is provided with the first driving mechanism for driving the motor installing frame to spin upside down, described
First driving mechanism is electrically connected the electric-controlled plate.
Preferably, the support rod is equipped with the second driving mechanism for driving the bracket left-right rotation, and described second
Driving mechanism is electrically connected the electric-controlled plate.
Preferably, the motor installing frame clamping is installed on the bracket both ends, and the bracket both ends are equipped with for positioning
The rotational positioning piece of the motor installing frame.
Preferably, the blade quantity of first fan blade is n1, the blade quantity of second fan blade is n2；Described first
The windup-degree of fan blade is θ1, the windup-degree of second fan blade is θ2；Define the blade quantity and second of first fan blade
The product of the ratio between blade quantity of fan blade and the ratio between the first fan blade windup-degree and the second fan blade windup-degree is first poor
Different coefficient, then the first coefficient of variationThe first coefficient of variation k1∈[0.7,1.2]。
Preferably, the length of blade of first fan blade is l1, area S1, the length of blade of second fan blade is l2,
Area is S2；Define the ratio between the blade area of first fan blade and the length of blade of first fan blade and second fan blade
Blade area and the product of the ratio between length of blade of second fan blade be the second coefficient of variation, then the second coefficient of variationThe second coefficient of variation k2∈[0.8,1.2]。
Preferably, the fan further includes third fan blade, and the third fan blade is installed on the first rotating shaft.
Preferably, the third fan blade is set to the outside of the first fan blade, and the length of blade of the third fan blade is less than institute
State the length of blade of the first fan blade.
Preferably, the fan further includes the 4th fan blade, and the 4th fan blade is installed on second shaft.
Preferably, the 4th fan blade is set between first fan blade and second fan blade, and the 4th fan blade
Length of blade be less than second fan blade length of blade.
Technical solution of the present invention is by using bi-motor to revolving outlet air in the same direction, and the motor that can be spun upside down by setting
Installing frame and the bracket of left-right rotation can make outlet air direction scope realize the outlet air of three-dimensional omnidirectional centered on nose assembly.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the overall structure diagram of one embodiment of fan of the present invention；
Fig. 2 is the explosive view of one embodiment of fan of the present invention；
Fig. 3 is the motor of one embodiment of fan of the present invention and the structural schematic diagram of fan blade；
Fig. 4 is the structural schematic diagram of bracket in one embodiment head of fan of the present invention；
Fig. 5 is a-quadrant partial enlarged view in Fig. 4
Fig. 6 is blade structure schematic diagram in another embodiment of fan of the present invention.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 100 | Nose assembly | 141 | Second shaft |
| 110 | Bracket | 142 | Second fan blade |
| 120 | Motor installing frame | 150 | Rotational positioning piece |
| 121 | Motor mount | 200 | Support component |
| 130 | First motor | 210 | Pedestal |
| 131 | First rotating shaft | 220 | Support column |
| 132 | First fan blade | 300 | Third fan blade |
| 140 | Second motor | 400 | 4th fan blade |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of fan.
The aerofoil fans such as household stand fan, desk fan, sash are fixed on machine shaft using a motor drive
Inclined fan blade rotation, so that this fan structure is simple, air-out mode by air towards the axially driving air-out mode of motor
Directly, application is the most universal, but the air that the fan blade of this fan is pushed directly on also has in addition to having along axial momentum
Have because of fan blade and the momentum vertical with shaft for making gas generation due to windage, wherein the momentum of the air-flow vertical with shaft
Diffusion of gas stream can be made to hold, the cross section of air flow stream increases after air-flow scatters, axially movable when suffered resistance sharply increase,
Cause axial effective air supplying distance closer, when especially fan head swinging puts wind, axial effectively air supplying distance is compared to single side
It is closer to air supplying distance when outlet air.
The test of air quantity platform wind speed measurement is carried out by object of " beautiful FS40-12DR " stand fan, it is basic with other stand fans
Equally, it is 4m/s or so that the maximum of beautiful FS40-12DR, which goes out wind velocity,.Fan is opened, highest gear is adjusted to, air quantity platform is placed
In front of the fan axis at different distance, wind speed is detected, data are as follows：
From the point of view of experimental data, fan decays to nonlinear attenuation, and the more highly attenuating speed the faster, and is decaying at 3m
1.65m/s, and human feeling is to there is wind to need wind speed in 1.6m/s or so.
From above-mentioned test data, it could be assumed that, effective air supplying distance of common stand fan is 3m or so, with routine use
Middle experience is consistent.
In general, effective air supplying distance of 3m can satisfy the demand of most application scenarios, but in the isometric stream wind of stand fan
The noise that fan generates when opening to high tap position is larger.Gear and noise comparative test (shelves are equally carried out with " beautiful FS40-12DR "
The position the high, and then wind velocity is higher out)." beautiful FS40-12DR " mechanicalness noise control in similar product is preferable, in operation almost
The noise for not having component mechanical oscillation or friction and generating, therefore the noise detected can consider and all blow air-flow derived from fan blade
When the noise that generates.There are three gears for FS40-12DR tool, and the corresponding noise level of each gear is being detected at two meters of fan,
Data are as follows：
| Gear | 1 | 2 | 3 |
| Noise (decibel) | 36.3 | 43.2 | 53.8 |
Noise on daytime is more than 50 decibels, and night noise can interfere normal sleep and rest when being more than 45 decibels.According to sound
Environmental quality standards, the requirement of 0 class acoustic environment area (referring to the region that rehabilitative sanatorium care area etc. especially needs peace and quiet) be daytime noise not
Greater than 50 decibels, night noise is not more than 40 decibels；1 class acoustic environment area (refers to residential building, health care, culture and education, section
Grind design, administrative office is major function, the region for needing to keep quite) requirement be noise on daytime no more than 55 decibels, night
Late noise is not more than 45 decibels.
It follows that conventional stand fan at night in use, its maximum gear the noise that generates can be obvious
Influence sleep and rest.Even if the noise for passing generation in the case of maximum gear does not meet 0 class acoustic environment area yet on daytime
Requirement.
Therefore the stand fan of conventional single motor single blade structure cannot guarantee sufficient under the premise of keeping sufficiently quietly
Effective air supplying distance.Meanwhile conventional stand fan can not meet the air-supply demand of some larger spaces, such as area is biggish
The scene of the demands such as parlor.
Under some special application scenarios, such as it is infant's air-supply in the lesser bedroom of area or is that the elderly send
When wind, what is needed is no longer biggish effective air supplying distance, but the gentle breeze that air-flow scatters as early as possible, to avoid larger
Wind speed blow-through infant or old man's body.Currently, people make the recoil of air-flow using wall usually by fan towards wall
With making air-flow achieve the purpose that fast spread, and cannot be achieved the goal by directly adjusting fan.
In addition, fan is in addition to thinking application there is also other function for people's air-supply, such as takes a breath, there are also some special
Situation, such as needing to use fan makes cross-ventilation, achieve the purpose that accelerate it is shady dry to shady dry, specifically for example in sunning Portugal
When grape do, the sunning porous wall in room can flow the preferable condition that provides for indoor and outdoor air, but lean on the routine of natural wind
The dry mode of shade takes a long time, and conventional exhaust fan influences very little to the air-flow velocity around grape, cannot directly act in room
The grape cluster of suspension.
For this purpose, the present invention proposes that a kind of wind-out range is larger, the fan of more scene applications can be met.Wind proposed by the present invention
Fan individually controls two fan blades using two motors and reversely rotates, and the inclined direction of two fan blades is on the contrary, therefore two fan blades are anti-
It is identical to its air-out direction when rotation, and the outlet air of fan proposed by the present invention is under the premise of can be with left-right rotation, it can be with
Realize 360 ° up and down of rotation.
Specifically, please referring to Fig. 1 to Fig. 3, in embodiments of the present invention, which includes nose assembly 100 and support group
Part 200, the support component 200 include pedestal 210 and support rod；The nose assembly 100 includes bracket 110, motor installation
Frame 120, first motor 130 and the second motor 140；Wherein, the bracket 110 is installed on the support bar top, and can be around institute
State support rod axis rotation；The motor installing frame 120 is installed on the bracket 110 and can be relative to the bracket 110 upper
Lower direction is overturn, and is provided with motor mount 121 in the middle part of the motor installing frame 120；The first motor 130 is installed on described
The front side of motor mount 121, the first motor 130 have first rotating shaft 131, and the is equipped in the first rotating shaft 131
One fan blade 132；Second motor 140 is installed on the rear side of the motor mount 121, and second motor 140 has the
Two shafts 141 are equipped with the second fan blade 142 in second shaft 141；First fan blade 132 and second fan blade 142
Torsional direction it is opposite.
Fan of the invention further includes electric-controlled plate, the electric-controlled plate connection first motor 130 and the second motor 140, and is controlled
Make the first motor 130 and 140 relative rotation of the second motor.First motor 130 drives the rotation of first rotating shaft 131 with band
Dynamic first fan blade 132 rotation；Likewise, the second motor 140 drives the rotation of the second shaft 141 to drive the second fan blade 142 to rotate.
First motor 130 and the second motor 140 are electrically connected electric-controlled plate, and the electric-controlled plate individually controls 130 He of first motor
The rotation direction and velocity of rotation of second motor 140 make first motor 130 and the rotation direction of the second motor 140 keep opposite.
Bi-motor can make air by axially stacking driving effect to outlet air in the same direction is revolved, and the drive radially cancelled out each other
Movement is used, and reduces disturbance of the air-flow when being axially moved, air-flow is made smoothly to travel forward.It is not much different in two fan blade revolving speeds
When, relative to single fan blade outlet air, the gather effect of air-flow is obvious, can be transmitted to farther distance.The difference of two fan blade revolving speeds
The difference that will lead to fan air-out effect, about the first fan blade 132 and 142 rotating ratio of the second fan blade to fan air output and effectively
The influence of air supplying distance, hereinafter will do it and illustrates.
Electric-controlled plate includes rotating ratio adjustment module, gear adjustment module and steering adjustment module；Wherein, the rotating ratio tune
Section module is for adjusting and fixing the ratio between the first motor 130 and described second motor, 140 revolving speed, the gear adjustment module
For being adjusted in synchronism the revolving speed of the first motor 130 and second motor 140, the steering adjustment module is for switching institute
State the rotation direction of first motor 130 and second motor 140.The revolving speed for defining first motor 130 is ω1, the second motor
140 revolving speed is ω2, then rotating ratio adjustment module controlsValue range between 0.75 to 1.33.In first motor 130
When to go out wind turbine,Value range be 1 to 1.33, first motor 130 be air inlet motor when,Value range be
0.75 to 1.Turning to adjustment module tool, there are two types of shaping modes, and one is co-rotating mode, another kind is reversing mode, co-rotating mode
Under, fan forward direction outlet air, under reversing mode, the reversed outlet air of fan；Turning to adjustment module includes regulating switch and protective switch, is protected
Switch is protected for the cutting steering adjustment module in fan work, prevents the triggering steering regulating switch in fan work from making first
Motor 130 and the second motor 140 reversely damage at work；Regulating switch is turned to be used for when fan stops working pair
Switch the powering mode of first motor 130 and the second motor 140, to control fan forward direction or reversed outlet air.Protective switch is
Normally closed switch, when fan work, protective switch is opened, and cutting turns to the power supply of adjustment module；Power on when fan and
When not working, protective switch closure, turning to adjustment module be can work normally.
Bi-motor respectively drives double common completion outlet air of fan blade rotation, in the identical situation of two fan blades, air-out mode
The ratio between revolving speed depending on two motors.It is illustrated by taking 132 1 side air-out of the first fan blade of fan as an example, keeps first motor 130
It is constant with the gross output of the second motor 140, the rotating ratio of first motor 130 and the second motor 140 is adjusted, to outlet air total amount
It is tested with effective air supplying distance, it is as a result as follows：
From above-mentioned experimental data it is found that working as the rotating ratio of first motor 130200 and the second motor 140300When, air output and effective air supplying distance are all larger；WhenWhen, the rate that air output reduces subtracts
It is small, and the rate that effectively air supplying distance reduces also reduces；?Value between 0.7 to 0.9 when, effective air supplying distance and
There is very big decaying in air output, andWhen, air output and the decaying of effective air supplying distance are obviously reduced.
It is rightRatio range expand, carry out the further research of fan air-out mode, partial data is as follows：
From above-mentioned test it can be concluded that,When, air output almost no longer reduces with the increase of the ratio.
It is respectively 690m with the single motor fan air output of power and effective air supplying distance3/ h and 4m, the outlet air of lower pair of fan blade of the power
The case where amount and effective air supplying distance approach single fan blade, that is, be greater than in first motor 130 and 140 rotating ratio of the second motor
After 2.1, double fan blades are no longer substantially better than situation when single fan blade to the air output of rotation and effective air supplying distance.
In conjunction with upper one group of experimental data, in the case where demand obtains larger air output and effective air supplying distance,Value
It should not exceed 2.1 and no less than 0.7；It is rightValue is refined based on 0.7 and 2.1 two value, is tested again,
Data are as follows：
From above-mentioned data it is found thatValue between 0.8 to 2.0 when, air output is larger and effective air supplying distance
Farther out.And the rotation direction of the first electricity and the second motor 140 in the present embodiment can be on the contrary, that is to say can be by the second motor
140 1 side air-outs, therefore, to obtain biggish air output and farther away effective air supplying distance, first motor 130 and the second motor
The value preferred scope of 140 rotating ratio is [0.5,2].
When the speed difference of first motor 130 and the second motor 140 is larger, effective air supplying distance is closer, the hair of outlet air
It is larger to dissipate angle.According to above-mentioned several groups of experimental datas, to first motor 130 and still by taking 130 1 side air-out of first motor as an example
Relationship carries out quantitative research between the difference and outlet air dispersion angle of two motors, 140 rotating ratio.Partial data is as follows：
Wherein, because outlet air air-flow does not have apparent boundary, and the requirement for the outlet air parameter accuracy of gentle breeze mode is not
Height, therefore using apart from the distant place outlet air fan blade 1m, fringe region of the air-flow velocity not less than 1m/s is bound for boundary, and
Approximate number is taken, obtains above-mentioned dispersion angle data.
From above-mentioned data it is found that working asValue between 0.8 to 1.3 when, the dispersion angle of outlet air less than 45 °, gather by outlet air
Effect is relatively good.
It is rightValue carry out Study on thinning, the results showed that whenValue between 0.75 to 1.33 when, outlet air dispersion angle is small
In 45 °.And work as ω1Less than ω2When, noise is larger, therefore when first motor 130 is wind turbine, preferably gathers to obtain
Air-out effect and lower noise, control
Conventional fan usually presets three gears, and fan of the invention can also carry out the default of gear, specifically, this reality
Apply the editing machine and memory that the gear adjustment module in example includes editable gear；The gear adjustment module further includes multiple
Preset gear selection key and at least one customized gear selection key.Different air-out modes may be implemented in fan of the invention,
Therefore, preset gear further includes the gear of air-out mode, such as wrap in preset gear in addition to the gear of conventional controlled wind speed
Include gentle breeze mode and gear and straight wind mode and gear.In addition to this, user can be applicable in the customized gear of gear editing machine progress and set
It sets, editable content includes gross output and rotating ratio, saves after the completion of editor in memory, selects with customized gear
It selects key to be associated, that realizes customized air-out mode calls directly selection.
The blade of fan includes plane blade and cambered surface blade, it is noted that when using plane blade, by turning
To adjustment module change motor steering, air-out direction on the contrary, the first fan blade 132 and the second fan blade 142 rotating ratioTo out
The influence of wind effect be not applicable in foregoing teachings directly, needs to replace with the second fan blade 142 and the first fan blade 132 by being inverted
Rotating ratioWhen using cambered surface blade, change motor steering by turning to adjustment module, air-out direction is on the contrary, but outlet air
Effect and difference when using plane blade, outlet air ability increases when front-outlet, and outlet air ability has when reverse side outlet air
It is reduced, other aspects are coincide with above content.
Motor installing frame 120 of the invention in a ring, is used to pacify for the first motor 130 with second motor 140
Dress, the front and back mesh enclosure of fan are also mounted on the motor installing frame 120.The side of motor installing frame 120 is equipped with symmetrical
Two connecting shafts, and be mounted on bracket 110 by two connecting shafts, wherein a connecting shaft is provided with a through-hole, electric wire passes through the company
The through-hole of spindle extends in motor installing frame 120, and connects first motor 130 and the second motor 140.Bracket 110 is equipped with
For the axis hole of connecting shaft installation, motor installing frame 120 can rotate after being mounted on bracket 110 around two shafts, with reality
Existing first motor 130 is spun upside down under the drive of motor installing frame 120 with the second motor 140.And electric wire passes through in shaft
The case where through-hole insertion when motor installing frame 120 is spun upside down is not in winding and card line, therefore its flip angle can be with
Reach 360 °.Fan of the invention further includes supporting assembly, and support component 200 includes chassis and support column 220, the support column
220 lower ends are installed on the chassis, and upper end connects the bracket 110.A hollow member, bracket is arranged in the upper end of support column 220
A connecting rod is arranged in 110 lower ends, and the connecting rod is inserted into the hollow member of 220 upper end of support column.
Bracket 110 is equipped with the first driving mechanism for driving the motor installing frame 120 to spin upside down, the first driving
Mechanism is electrically connected electric-controlled plate, to rotate upwardly and downwardly under the control of electric-controlled plate；Likewise, the first driving mechanism also can be set in electricity
On machine installing frame 120, for example, it is opposite using a wherein connecting shaft as the drive shaft driving motor installing frame 120 of the first driving mechanism
The rotation of bracket 110.Support rod or connecting rod are equipped with the second driving mechanism for 110 left-right rotation of driving arm, and second
Driving mechanism be electrically connected electric-controlled plate, using under the control of electric-controlled plate driving arm 110 using support rod as axis left-right rotation.
In addition, in other embodiments, separately may be omitted with referring to figure 4. with Fig. 5, the first driving mechanism, and in motor
Rotational positioning piece 150 is set between installing frame 120 and bracket 110, during setting one is passed through for connecting shaft on rotational positioning piece 150
Heart hole and the location hole being distributed in around centre bore, the clamping of motor installing frame 120 is installed on 110 both ends of bracket, and pacifies in motor
120 connecting shaft that frames up or 110 both ends of bracket are set to the detent ball being adapted to location hole.Motor installing frame 120 can pass through
Manually mode adjusts air-out direction up and down, and detent ball clamping location hole is after direction is adjusted in place with by motor installing frame 120
Positioning.
Motor of the technical solution of the present invention by using mutually opposing rotation, the first wind for driving blade twist contrary
Leaf 132 and the second fan blade 142 driving air pass through electric-controlled plate control first motor 130 and the second motor 140 along axial outlet air
Revolving speed in certain ratio range, air-flow can be made to be cancelled out each other perpendicular to the momentum of motor axial direction to making gas
Stream is more gathered, and air output is bigger, and air supplying distance is farther, so as to drop under the premise of meeting certain air supplying distance demand
The revolving speed of low first motor 130 and the second motor 140, and then noise when reduction fan work.Pass through the rotating ratio of electric-controlled plate
Adjustment module adjusts the rotating ratio of first motor 130 and the second motor 140, so that fan be made to have from the soft of air-flow fast spread
Wind outlet air function gradually arrives the function of blowing at a distance that air-flow is gathered；It, can by the editing machine and memory of editable gear
The commonly used air-out mode of user is carried out edit and storage, and carried out as customized gear and customized gear key
Association, after setting can with a key select without need every time using when carry out repeat setting.Pass through the first driving machine
Structure realizes spinning upside down for motor installing frame 120, while the left-right rotation of bracket 110 is realized by the second driving mechanism, thus
Three-dimensional omnidirectional's outlet air centered on nose assembly 100 may be implemented, to meet the air-supply demand of a variety of situations.
Fan is other than the rotating ratio of its two motor will affect air-out effect, the blade quantity of first fan blade 132
n1, second fan blade 142 blade quantity n2, first fan blade 132 windup-degree θ1, second fan blade 142 torsion
Gyration θ2Numerical value and mutual relationship air-out effect can also be influenced.More influence factor joint effect wind
The outlet air ability of fan and when being difficult to specifically calculate, the relationship for how combining these influence factors is able to achieve optimal design with regard to face
Face the difficulty in theoretical and test.
For this purpose, defining the ratio between the blade quantity of first fan blade 132 and the blade quantity of the second fan blade 142 and described the
The product of the ratio between 142 windup-degree of one fan blade, 132 windup-degree and the second fan blade be the first fan blade 132 and the second fan blade 142 it
Between the first coefficient of variation；Define the blade area of first fan blade 132 and the ratio between the length of blade of first fan blade 132
It is the second difference system with the blade area of second fan blade 142 and the product of the ratio between the length of blade of second fan blade 142
Number.Then the first coefficient of variationSecond coefficient of variation
The reaction of first coefficient of variation is in the first fan blade 132 and the second fan blade 142 in blade shape, area, length, width
One timing of the other conditions such as degree, the ratio of the outlet air ability of itself；The reaction of second coefficient of variation is in 132 He of the first fan blade
One timing of the conditions such as the width of the blade quantity of the second fan blade 142, the windup-degree of blade and blade, the outlet air ability of itself
Ratio.
When the other conditions of constant gross output and blade are all the same, to different k1The fan of value carries out outlet air ability
Group experiment, it is as a result as follows：
| k1 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1.0 | 1.1 | 1.2 | 1.3 |
| Air output (m3/h) | 522 | 705 | 850 | 950 | 986 | 988 | 970 | 945 | 830 |
| Air supplying distance (m) | 3.2 | 4.5 | 5.4 | 7.2 | 8.7 | 8.2 | 7.5 | 6.2 | 5.0 |
From above-mentioned data as can be seen that in k1When [0.7,1.2] ∈, the air output and air supplying distance of fan all in compared with
Good range.
When the other conditions of constant gross output and blade are all the same, to different k2The fan of value carries out outlet air ability
Group experiment, it is as a result as follows：
| k2 | 0.6 | 0.7 | 0.8 | 0.9 | 1.0 | 1.1 | 1.2 | 1.3 | 1.4 |
| Air output (m3/h) | 615 | 745 | 851 | 876 | 869 | 860 | 845 | 751 | 683 |
| Air supplying distance (m) | 4.2 | 5.0 | 6.2 | 7.7 | 7.4 | 7.0 | 6.2 | 5.5 | 4.8 |
As can be seen that the optimum interval of the air output of fan and air supplying distance is k from data2∈[0.8,1.2]。
In conjunction with the rotating ratio of first motor 130 and the second motor 140, the first coefficient of variation and the second coefficient of variation, it is not difficult
It obtains, the ratio setting of the parameter setting of fan blade itself and motor speed when fan obtains preferable outlet air ability.
Above-described embodiment be using the specific embodiment of the fan of double fan blades, for further increase the air-supply of fan away from
From the present invention is on the basis of double fan blades, it is also proposed that another embodiment.
Fig. 6 is please referred to, the present embodiment fan further includes third fan blade 300, increases third fan blade 300 in double fan blades to back-out
On the basis of wind, it can carry out further rectifying adjusting, increase farthest air supplying distance.Specifically, the third fan blade 300 is pacified
Loaded on the first rotating shaft 131；The third fan blade 300 is set to another opposite with second fan blade 142 of the first fan blade 132
Side, and the length of blade of the third fan blade 300 is less than the length of blade of first fan blade 132.
Fan blade can change the flow velocity and flow direction of air-flow, using can be to air-flow into secondary adjustment when two groups of fan blades, and pass through
Two groups of fan blades are specifically set and are adjusted to achieve the purpose that artificially to adjust air-out effect, accordingly, the present invention
Propose the embodiment of above-mentioned two groups of fan blade fans.And it will receive the obstruction of surrounding air when air-flow flowing, therefore the side of air-flow
Boundary has biggish unstability.Air-flow equivalent can divide into air flow stream center and air flow stream frontier district, in contrast, gas
Influence of the flow velocity of a fluid stream center to air supplying distance is bigger, and air flow stream frontier district is affected to the angle of air-supply.Therefore,
The present invention proposes the embodiment for increasing rectification fan blade on the basis of above-mentioned double fan blades.
Wherein, third fan blade 300 be rectification fan blade, rectification fan blade be mainly used for adjust air flow stream center regional percentage and
Flow velocity has reached in the case where general power is constant, and the range and ratio by adjusting air flow stream center and frontier district obtain
Farther air supplying distance.
On this basis, to improve stability when fan operation and further increasing the detectability of rectification fan blade, this
Invention proposes another embodiment, and fan further includes the 4th fan blade 400 in the present embodiment, and the 4th fan blade 400 is installed on described
Second shaft 141 and be set between first fan blade 132 and second fan blade 142.Likewise, the 4th fan blade 400
Length of blade be less than second fan blade 142 length of blade.It should be pointed out that rectification fan blade can individually use third
Third fan blade 300 and the 4th fan blade 400 can also be arranged in fan blade 300 or the 4th fan blade 400 simultaneously.
It rectifies fan blade and the first fan blade 132 and the second fan blade 142 cooperates, the adjustability of air-flow can be made stronger, and it is whole
The fan blade driving effect additional to air-flow is flowed, and the additional driving effect concentrates on wind beam center region, adjustable fan
The center of produced air flow stream and the regional percentage of frontier district and flow rate, to obtain farther outlet air distance.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (14)
1. a kind of fan, which is characterized in that including nose assembly and support component,
The support component includes pedestal and support rod；
The nose assembly of stating includes：
Bracket is installed on the support bar top, and can rotate around the support rod axis；
Motor installing frame, be installed on the bracket and can the relatively described bracket overturn in above-below direction；The motor installing frame
Middle part is equipped with motor mount；
First motor, is installed on the front side of the motor mount, and the first motor has first rotating shaft, the first rotating shaft
On the first fan blade is installed；
Second motor, is installed on the another rear side of the motor mount, and second motor has the second shaft, and described second turn
Second fan blade is installed, and the torsional direction of second fan blade is opposite with the torsional direction of first fan blade on axis.
2. fan as described in claim 1, which is characterized in that the fan further includes electric-controlled plate, the electric-controlled plate electrical connection
The first motor and second motor, and control the first motor and the second motor relative rotation；It is described automatically controlled
Plate includes rotating ratio adjustment module, gear adjustment module and steering adjustment module.
3. fan as claimed in claim 2, which is characterized in that the rotating ratio adjustment module adjusts and controls first electricity
The rotational speed omega of machine1With the rotational speed omega of second motor2The ratio between
4. fan as claimed in claim 2, which is characterized in that the gear adjustment module includes the editing machine of editable gear
And memory；The gear adjustment module further includes multiple preset gear selection keies and at least one customized gear selection key.
5. fan as claimed in claim 2, which is characterized in that the steering adjustment module is for the first electricity described in synchronism switching
The rotation direction of machine and second motor；The steering adjustment module includes protective switch, in the first motor and institute
The steering adjustment module is cut off when stating the work of the second motor.
6. fan as described in claim 1, which is characterized in that the branch is provided with for driving the motor installing frame or more
First driving mechanism of overturning, first driving mechanism are electrically connected the electric-controlled plate.
7. fan as described in claim 1, which is characterized in that the support rod is equipped with for driving the bracket left-right rotation
The second driving mechanism, second driving mechanism is electrically connected the electric-controlled plate.
8. fan as described in claim 1, which is characterized in that the motor installing frame clamping is installed on the bracket both ends,
The bracket both ends are equipped with the rotational positioning piece for positioning the motor installing frame.
9. fan as described in claim 1, which is characterized in that the blade quantity of first fan blade is n1, second fan blade
Blade quantity be n2；The windup-degree of first fan blade is θ1, the windup-degree of second fan blade is θ2；Described in definition
The ratio between blade quantity of the blade quantity of first fan blade and the second fan blade and the first fan blade windup-degree and the second fan blade are turned round
The product of the ratio between gyration is the first coefficient of variation, then the first coefficient of variation
The first coefficient of variation k1∈[0.7,1.2]。
10. fan as claimed in claim 9, which is characterized in that the length of blade of first fan blade is l1, area S1, institute
The length of blade for stating the second fan blade is l2, area 22；Define the blade area of first fan blade and the leaf of first fan blade
The product of the ratio between the length of blade of the ratio between leaf length and the blade area of second fan blade and second fan blade is second poor
Different coefficient, then the second coefficient of variation
The second coefficient of variation k2∈[0.8,1.2]。
11. fan as described in claim 1, which is characterized in that the fan further includes third fan blade, the third fan blade peace
Loaded on the first rotating shaft.
12. fan as claimed in claim 11, which is characterized in that the third fan blade is set to the outside of the first fan blade, and institute
The length of blade for stating third fan blade is less than the length of blade of first fan blade.
13. the fan as described in any one of claim 1 to 12 claim, which is characterized in that the fan further includes the 4th
Fan blade, the 4th fan blade are installed on second shaft.
14. fan as claimed in claim 13, which is characterized in that the 4th fan blade is set to first fan blade and described the
Between two fan blades, and the length of blade of the 4th fan blade is less than the length of blade of second fan blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810749397.2A CN108869356B (en) | 2018-07-09 | 2018-07-09 | Fan with cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810749397.2A CN108869356B (en) | 2018-07-09 | 2018-07-09 | Fan with cooling device |
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| Publication Number | Publication Date |
|---|---|
| CN108869356A true CN108869356A (en) | 2018-11-23 |
| CN108869356B CN108869356B (en) | 2021-07-27 |
Family
ID=64300403
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810749397.2A Active CN108869356B (en) | 2018-07-09 | 2018-07-09 | Fan with cooling device |
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| Country | Link |
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| CN (1) | CN108869356B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566475A (en) * | 2019-09-16 | 2019-12-13 | 续客商城（深圳）有限公司 | air outlet device and fan |
| CN111692717A (en) * | 2019-03-12 | 2020-09-22 | 广东美的制冷设备有限公司 | Operation control method, operation control device, air conditioner, and storage medium |
| CN114704486A (en) * | 2022-03-30 | 2022-07-05 | 武汉市江楚开物科技有限公司 | Fan with multi-directional air outlet |
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| CN106968973A (en) * | 2017-05-09 | 2017-07-21 | 美的集团股份有限公司 | Axial flow blower |
| CN207212730U (en) * | 2017-09-15 | 2018-04-10 | 中山市春凯电器有限公司 | A kind of vertical fan |
| CN207229425U (en) * | 2017-08-25 | 2018-04-13 | 宁波宝工电器有限公司 | Double blade motor components |
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| CN104235065A (en) * | 2013-06-07 | 2014-12-24 | 日本电产株式会社 | Serial axial fan |
| CN206309618U (en) * | 2016-12-09 | 2017-07-07 | 杭州微光电子股份有限公司 | Double-vane fan |
| CN106968973A (en) * | 2017-05-09 | 2017-07-21 | 美的集团股份有限公司 | Axial flow blower |
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| CN111692717A (en) * | 2019-03-12 | 2020-09-22 | 广东美的制冷设备有限公司 | Operation control method, operation control device, air conditioner, and storage medium |
| CN111692717B (en) * | 2019-03-12 | 2022-03-01 | 广东美的制冷设备有限公司 | Operation control method, operation control device, air conditioner, and storage medium |
| CN110566475A (en) * | 2019-09-16 | 2019-12-13 | 续客商城（深圳）有限公司 | air outlet device and fan |
| CN114704486A (en) * | 2022-03-30 | 2022-07-05 | 武汉市江楚开物科技有限公司 | Fan with multi-directional air outlet |
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|---|---|
| CN108869356B (en) | 2021-07-27 |
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