CN105008723B - Screw ventilation and the air conditioner for possessing the screw ventilation - Google Patents
Screw ventilation and the air conditioner for possessing the screw ventilation Download PDFInfo
- Publication number
- CN105008723B CN105008723B CN201380073430.XA CN201380073430A CN105008723B CN 105008723 B CN105008723 B CN 105008723B CN 201380073430 A CN201380073430 A CN 201380073430A CN 105008723 B CN105008723 B CN 105008723B
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- blade
- rotary shaft
- screw ventilation
- hinder marginal
- marginal part
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- 238000009423 ventilation Methods 0.000 title claims abstract description 64
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 16
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 230000002441 reversible effect Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 3
- 238000000265 homogenisation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- 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
- F04D29/384—Blades characterised by form
- F04D29/386—Skewed blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0029—Axial 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
- 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
- F04D29/384—Blades characterised by form
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/545—Ducts
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow 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
- 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
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow 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
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/304—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the trailing edge of a rotor blade
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/70—Shape
- F05D2250/71—Shape curved
- F05D2250/713—Shape curved inflexed
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
By the means as lower noise using the sweepforward blade for reducing end of blade whirlpool, so that the speed near horn mouth declines, suppress the exporting of blade, the speed of bell-mouthed outlet it is uneven, for this, in the blade of screw ventilation, the hinder marginal part being projected in the plane by rotary shaft is rotated to be formed as bending from lateral discharge side is sucked with first curvature from rotary shaft towards blade tip, moreover, being also formed as bending from lateral discharge side is sucked with the torsion less than the first curvature after flex point.
Description
Technical field
The present invention relates to a kind of screw ventilation and possesses the air conditioner of the screw ventilation.
Background technology
In air conditioner etc., screw ventilation is widely applied.Figure 13 represents the spiral shell of existing screw ventilation
Revolve the top view of oar.Figure 13 is the figure of the propeller from discharge side.Propeller is by multiple blades for being arranged on around wheel hub
Constitute.In order to reduce noise, using mostly makes shape (sweepforward blade) of the blade towards direction of rotation sweepforward.Sweepforward blade has
Reduce the effect of the end of blade whirlpool flowed out from end of blade, the effect with reduction noise.
It is used as the background technology of the art, existing Japanese Patent Publication 2-2000 (patent document 1).In patent document 1
In, following scheme is described, i.e.,：Pass through the blade sweepforward degree, the gradient of blade, blade profile to above-mentioned sweepforward blade
Flexibility as form parameter carry out numerical definiteness, can realize strong wind quantify, the reduction of high static pressure and noise.
In addition, also Japanese Patent No. 3744489 (patent document 2).In patent document 2, following scheme is described,
I.e.：Peripheral end by making blade can reduce end of blade whirlpool to reduce noise to suction side warpage.But also describe
By providing blade and bell-mouthed such position relationship, air-flow can be suppressed with bell-mouthed interference to reduce noise
Scheme.
In addition, also Japanese Patent No. 4818184 (patent document 3).In patent document 3, following scheme is described,
I.e.：By making blade to suction side warpage in the definition method different from patent document 2, end of blade whirlpool can be made to blade periphery
The medial movement in portion, prevents end of blade whirlpool and bell-mouthed interference, realizes lower noise and high efficiency.
Citation
Patent document
Patent document 1:Japanese Patent Publication 2-2000
Patent document 2:Japanese Patent No. 3744489
Patent document 3:Japanese Patent No. 4818184
The content of the invention
Invent problem to be solved
In embodiment, the power that blade is acted on into air-flow is referred to as " BLADE FORCE ".In fig. 13, blade acts on air-flow
BLADE FORCE is represented with arrow A '.In the propeller of existing screw ventilation, blade is the shape to direction of rotation sweepforward,
Thus direction of the BLADE FORCE relative to rotary shaft 6 as arrow A ' is acted on towards interior circumferential direction.By towards the inner circumferential side
To BLADE FORCE, air-flow obtains the momentum towards interior circumferential direction, so that air-flow is towards interior circumferential direction.
Figure 14 represents the signal for the velocity being projected on the section by the rotary shaft 6 of existing screw ventilation
Figure.As shown in figure 14, air-flow is towards interior circumferential direction, thus, although not shown in figure, but air-flow is not supplied with to covering propeller
Configure to the periphery of formula blower fan it is bell-mouthed near.So, the air velocity near horn mouth declines.It is not supplied with air-flow
When near to horn mouth, the speed of outlet and the bell-mouthed outlet of blade is uneven, thus exists on screw ventilation
Efficient problem.
Therefore, it is an object of the invention to seek the high efficiency of screw ventilation.
Scheme for solving problem
In order to solve above-mentioned problem, using structure for example as described below.
The application includes multiple technical schemes for solving above-mentioned problem, is a kind of screw ventilation for example, tool
It is standby：Be formed as the rotary shaft of pivot；And multiple blades around the rotary shaft are arranged on, in the multiple blade
Horn mouth is configured with the outside of peripheral direction, the screw ventilation is characterised by that the multiple blade is respectively by with bottom
Divide and formed：Hinder marginal part, the hinder marginal part is formed at rear relative to direction of rotation；Exterior region, the exterior region is relative to rotation
Direction is formed at front；And blade tip, the blade tip is from the top ends of the peripheral direction of the hinder marginal part towards exterior region
The top ends of peripheral direction are formed, and are rotated the hinder marginal part being projected in the plane by the rotary shaft and are formed as from described
Rotary shaft towards the blade tip with first curvature since suction side to discharge lateral bend, moreover, being also formed as by turning
Point after with the torsion less than the first curvature since suction side to discharge lateral bend.
In addition, in said structure, it is preferable that on the bell-mouthed end face closest to the blade, from institute
State flex point position and the surfaces of revolution on when observing, positioned at the end of discharge direction and the angle position that circumferentially direction changes is basic
Alignment.
In addition, in said structure, it is preferable that be projected in the hinder marginal part in the plane of the rotary shaft from
The rotary shaft forms convex towards the blade tip in reverse directions, moreover, after flex point, formed it is linear or
Convex is formed in a rotational direction.
In addition, in said structure, it is preferable that for the multiple blade each for, BLADE FORCE is relative to the rotation
Rotor shaft direction acts on the position formed among the hinder marginal part with the first curvature, and BLADE FORCE towards peripheral direction
Acted on relative to the rotation direction of principal axis towards interior circumferential direction among the hinder marginal part with the portion of torsion formation
Position.
In addition, in said structure, it is preferable that with protective cover, the protective cover bypasses air through the row of the blade
Go out side and prevent foreign matter more than given size to be mixed into, with distance of the propeller more than specific length.
In addition, also providing a kind of air conditioner, possess：Framework, the framework has the suction inlet and blow-off outlet of air；Heat exchange
Device, the heat exchanger configuration is in the framework；Blower fan, the blower fan configuration is in the upstream side or downstream of the heat exchanger, by institute
State the air outside suction inlet suction framework and blown out from the blow-off outlet, it is preferable that the blower fan uses any in said structure
Screw ventilation described in.
Invention effect
The high efficiency of screw ventilation can be realized according to the present invention.
Brief description of the drawings
Fig. 1 is the sectional view of the plane of the rotary shaft of the screw ventilation by embodiment 1.
Fig. 2 be illustrate the screw ventilation (Fig. 2 (a)) of embodiment 1 compared with example screw ventilation (Fig. 2's
(b) figure of the difference of BLADE FORCE).
Fig. 3 is the signal for the velocity being projected on the section of the rotary shaft of the screw ventilation by embodiment 1
Figure.
Fig. 4 is the sectional view of the plane of the rotary shaft of the screw ventilation by embodiment 2.
Fig. 5 is the signal for the velocity being projected on the section of the rotary shaft of the screw ventilation by embodiment 2
Figure.
Fig. 6 is one of the screw ventilation of embodiment 2 compared with the axle power of conventional screw ventilation.
Fig. 7 is to represent figure combined with being shaped differently than Fig. 4 horn mouth in example 2.
Fig. 8 is to represent figure combined with being shaped differently than Fig. 4 horn mouth in example 2.
Fig. 9 is the top view of the propeller of embodiment 3.
Figure 10 is the figure of the screw ventilation of embodiment 4.
Figure 11 is one of the screw ventilation of embodiment 4 compared with the noise of conventional screw ventilation.
Figure 12 is the sectional view of the air conditioner of embodiment 5.
Figure 13 is the top view of the propeller of existing screw ventilation.
Figure 14 is the schematic diagram for the velocity being projected on the section by the rotary shaft of existing screw ventilation.
Embodiment
Hereinafter, embodiments of the invention are illustrated using accompanying drawing.
Embodiment 1
Embodiments of the invention 1 are illustrated using Fig. 1~Fig. 3.
Fig. 1 is the sectional view of the plane of the rotary shaft of the screw ventilation by embodiment 1.Reference 1 represents leaf
Piece, 2 expression wheel hubs, 3 expression hinder marginal parts, 4 expression exterior regions, 5 expression blade tips, 6 are denoted as the rotary shaft of pivot, X
Represent the flow direction of air.Hinder marginal part 3 is formed at rear relative to the direction of rotation of blade 1, and exterior region 4 is relative to blade 1
Direction of rotation be formed at front.Blade tip 5 is from circumference of the top ends in the circumference of hinder marginal part 3 initially towards exterior region 4
Top ends formed.
In Fig. 1, what hinder marginal part 3 was represented is the figure that rotation is projected in the plane by rotary shaft 6.Hinder marginal part 3 is formed
To be bent from rotary shaft 6 towards blade tip 5 with first curvature α from lateral discharge side is sucked.Moreover, being also formed as passing through flex point
Bent after 7 with the torsion β less than first curvature α.
Fig. 2 is difference of the screw ventilation compared with the BLADE FORCE of the screw ventilation of example for illustrating embodiment 1
Figure.Fig. 2 is the figure of the screw ventilation from discharge side incline direction.A represents the trailing edge of the screw ventilation of embodiment 1
The BLADE FORCE that the torsion β in portion 3 part 3b is acted on.A ' represents the side of blade tip 5 ' of the screw ventilation of conventional example
The BLADE FORCE that hinder marginal part 3b ' is acted on.Y represents the direction of rotation of blade.
The blade 1 of the screw ventilation of the present embodiment forms above-mentioned structure, thus BLADE FORCE A is relative to rotary shaft 6
Direction towards peripheral direction act on.Therefore, the air-flow near hinder marginal part 3b partly obtains the direction court relative to rotary shaft 6
To the momentum of peripheral direction.On the other hand, direction directions of the BLADE FORCE A ' of existing screw ventilation relative to rotary shaft 6
Interior circumferential direction effect.Therefore, interlobate air-flow obtains momentum of the direction relative to rotary shaft 6 towards interior circumferential direction.
Figure 14 represents the signal for the velocity being projected on the section by the rotary shaft of existing screw ventilation
Figure.Figure 14 air-flow T is obtained towards inner circumferential by Fig. 2 direction relative to rotary shaft 6 towards the BLADE FORCE A ' of interior circumferential direction
The momentum in direction, thus towards interior circumferential direction., although not shown in figure, but air-flow is not supplied with to covering propeller formula therefore
Configure to the peripheral direction of blower fan it is bell-mouthed near, speed near horn mouth declines.Air-flow is not supplied with to horn mouth
Near, in other words, it can cause to stagnate as air-flow U.Therefore, the air-flow U and air-flow T near horn mouth cause going out for blade
The speed of mouth side is uneven, the major reason declined as efficiency.
Fig. 3 represents showing for the velocity being projected on the section of the rotary shaft of the screw ventilation by embodiment 1
It is intended to.By Fig. 2 BLADE FORCE A effect, as Fig. 3 air-flow S, the air-flow near blade tip 5 is relative to the court of rotary shaft 6
To peripheral direction.That is, according to the shape of the hinder marginal part 3 of the present embodiment, BLADE FORCE A relative to rotary shaft 6 direction towards periphery
Act on to direction with the position of first curvature α formation in hinder marginal part 3, also, BLADE FORCE is relative to the direction direction of rotary shaft 6
Act on to interior circumferential direction in hinder marginal part 3 with the position of torsion β formation.
As a result, in the past, as shown in figure 14, near bell-mouthed, air-flow is not supplied with to horn mouth and picture
Air-flow U is stagnated like that, on the other hand, can suppress such thing for producing air-flow U in the past by BLADE FORCE A effect
State.The losses by mixture flowed after blade is reduced therefore, it is possible to homogenize the speed near blade exit, it is thus possible to increase effect
Rate.
Embodiment 2
In the present embodiment, the embodiment that embodiment 1 can be made more efficient is illustrated using Fig. 4~Fig. 8.
Fig. 4 is the sectional view of the plane of the rotary shaft of the screw ventilation by embodiment 2.8 represent horn mouth, 9 tables
Show that cylindrical portion, 10 represent bell-mouthed end.Cylindrical portion 9 is a part for horn mouth 8, separate as defined in cover blade with gap
1.End 10 is the end of the discharge side of cylindrical portion 9, and angle change is set in Fig. 1 into the position at a right angle with peripheral direction
Put, alignd when end 10 is configured to from the surfaces of revolution with flex point 7.
That is, on the end face closest to blade 1 of horn mouth 8, positioned at the end 10 of discharge direction and angle in periphery side
The position changed upwards is substantially aligned with flex point 7 when from from the surfaces of revolution.Thus, in horn mouth 8 closest to leaf
On the end face of piece 1, the part not acted on the BLADE FORCE A towards outside when the part acted on from the BLADE FORCE A towards outside
Boundary position and when from the surfaces of revolution, changed positioned at the end 10 of discharge direction and angle in peripheral direction
Position it is substantially aligned.
Fig. 5 represents showing for the velocity being projected on the section of the rotary shaft of the screw ventilation by embodiment 2
It is intended to.Due to being configured to make end 10 and flex point 7 substantially aligned, thus by embodiment 1 in the arrow A directions shown in Fig. 2
BLADE FORCE effect and the VELOCITY DISTRIBUTION that homogenizes is retained air-flow indiffusion using cylindrical portion 9.Therefore, it is possible to enter one
Step reliably obtains the action effect of embodiment 1, by increasing capacitance it is possible to increase the efficiency of screw ventilation.
Fig. 6 represent the screw ventilation of embodiment 2 compared with screw ventilation the result that compares of axle power.
Near operating point, compared with screw ventilation compare, the electric power that the screw ventilation of embodiment 2 is consumed can be real
Existing 3.3% energy-saving, i.e. high efficiency.
Fig. 7 and Fig. 8 are to represent figure combined with being shaped differently than Fig. 4 horn mouth in example 2.Fig. 7 loudspeaker
Discharge side formation arc-shaped of the mouth in cylindrical portion 9.In the case, end 10a is straight line and the point of contact of circular arc of cylindrical portion 9.
Fig. 8 horn mouth forms coniform taper in the discharge side of cylindrical portion 9.In the case, end 10b is the straight of cylindrical portion 9
Line and the point of contact of coniform taper.End 10a and 10b are configured to when from from the surfaces of revolution and flex point as shown in figure
7 alignment.For according to the action effect that obtains of the present invention, Fig. 7 and Fig. 8 horn mouth of any one can obtain with
Fig. 4 horn mouth identical effect.
Embodiment 3
In the present embodiment, using Fig. 9 and Figure 10 to embodiment 1 or the further efficient implementation of embodiment 2 can be made
Example is illustrated.
Fig. 9 is the top view of the propeller of embodiment 3.Fig. 9 is the figure of the propeller from discharge side.In fig .9, trailing edge
Portion 3 is projected in the plane of rotary shaft.Hinder marginal part 3 forms convex from wheel hub 2 towards blade tip 5 in reverse directions
Shape, convex is being formed after flex point 18 in a rotational direction.B represents the blade that the hinder marginal part 3h of the side of wheel hub 2 is nearby acted on
Power, C represent the BLADE FORCE that the hinder marginal part 3t of the side of blade tip 5 is nearby acted on.Preferably, flex point 18 is configured to and embodiment 1
And it is identical with the radius of flex point 7 described in 2.
It is boundary with flex point 18, hinder marginal part 3t curvature changes, therefore, compared with BLADE FORCE B, BLADE FORCE C direction
It is changing into relative to rotary shaft 6 towards peripheral direction.Due to the change in the direction of the BLADE FORCE, the air-flow near hinder marginal part 3t is obtained
Towards peripheral direction momentum so that air-flow near blade tip 5 is towards peripheral direction.As a result, near blade exit
Speed homogenization.Reduce the losses by mixture flowed after blade using the homogenization of speed, thus efficiency increased.
In addition, in fig .9, although hinder marginal part 3t is formed as convex in a rotational direction, but by making it in hinder marginal part
3t curvature becomes further linearly change on big direction after flex point 18 relative to hinder marginal part 3h, result in
Above-mentioned identical effect.
Embodiment 4
In the present embodiment, using Figure 10 and Figure 11 to except can realize embodiment 1~3 it is efficient in addition to can also
The embodiment for obtaining the effect of low noise is illustrated.
Figure 10 is the figure of the screw ventilation of embodiment 4.Figure 10 is the leaf in the screw ventilation of embodiment 1~3
The rear flow side of piece is configured with the structure of protective cover.The protective cover is formed as strip or netted, the discharge for passing through blade so as to air
Side, prevents foreign matter more than given size to be mixed into using the gap of this or net.Compared with screw ventilation compare, implement
Speed homogenization near the blade exit of the screw ventilation of example 1~3.Due to because of noise caused by air-flow and flow velocity
Six powers are in direct ratio, thus for the noise produced from protective cover 11, in the case where speed is locally larger, from the portion
The noise produced is divided to occupy an leading position.Therefore, in the present embodiment 4 that speed is homogenized, with existing propeller type wind
The situation that machine is combined compares lower noise.
Figure 11 represent the screw ventilation of embodiment 4 compared with screw ventilation compare one of noise.
Be able to confirm that, compared with screw ventilation compare, the lower noise about 1dB of the screw ventilation of embodiment 4.
In addition, the bar of the protective cover 11 or the gap of net need to be set to below given size, so as to prevent the hand of adult
Fingering enters.And then, in addition it is also necessary to itself and spiral shell can also be prevented even if when the finger of children enters the gap of protective cover 11 by being set to
Rotation oar 12 is contacted.Therefore, by by from the end of the bar of protective cover 11 or net to hinder marginal part 3 with the immediate position of protective cover 11
Put the distance between 19 L to be set to more than specific length, so as to ensure further security.Assuming that the finger of children
Length is about 50mm, then is preferably ensured more than 50mm as apart from L.
Embodiment 5
In the present embodiment, to the air conditioner using the screw ventilation for possessing any of embodiment 1~4 important document
Illustrate.
Figure 12 is the sectional view of the air conditioner of embodiment 5.The air conditioner is outdoor unit, in fig. 12, and propeller 12 is fixed
It is supported on motor 13, motor supporting station 14 and rotates.Horn mouth 8 is configured in the periphery of propeller 12.In the configuration of region downstream
Protective cover 11.In the inside of unit 15, the upstream of propeller 12 is provided with heat exchanger 16.Pressure is equipped with the inside of unit 15
Contracting machine 17.
The air conditioner rotates propeller 12 using motor 13, so that draw air into heat exchanger 16 and cool down or heat,
Then discharged it in air after propeller 12 and horn mouth 8 are boosted from protective cover 11.Due in propeller type wind
The screw ventilation recorded in machine and horn mouth using any of embodiment 1~4, it is thus possible to obtain low noise, efficiently
The air conditioner of rate.
In addition, although outdoor unit is illustrated in the present embodiment, but for the technology of the present invention, air conditioner is also
Can be other patterns or indoor set etc., as long as use the structure of screw ventilation, it becomes possible to the general present invention.
Description of reference numerals
1st, 1 ' blade
2nd, 2 ' wheel hub
3rd, 3 ', 3t, 3h hinder marginal part
4th, 4 ' exterior region
5th, 5 ' blade tip
6th, 6 ' rotary shaft
7 flex points
8 horn mouths
9 cylindrical portions
10th, 10a, 10b end
11 protective covers
12 propellers
13 motors
14 motor supporting stations
Unit 15
16 heat exchangers
17 compressors
18 flex points
19 from the bar of protective cover 11 or the end of net, the position closest to protective cover 11 of hinder marginal part 3
A, A ' BLADE FORCE
B BLADE FORCEs
C BLADE FORCEs
L distances
S air-flows
T air-flows
U air-flows
The flow direction of X air
Y direction of rotation
α first curvatures
β torsions
Claims (5)
1. a kind of screw ventilation, possesses：
Be formed as the rotary shaft of pivot；And
Multiple blades around the rotary shaft are arranged on,
Horn mouth is configured with the outside of the peripheral direction of the multiple blade, the screw ventilation is characterised by,
The multiple blade is formed by following part respectively：
Hinder marginal part, the hinder marginal part is formed at rear relative to direction of rotation；Exterior region, the exterior region is relative to direction of rotation
It is formed at front；And blade tip, the blade tip is from the top ends of the peripheral direction of the hinder marginal part towards the periphery of exterior region
The top ends in direction are formed,
The hinder marginal part that is projected in the plane by the rotary shaft is rotated to be formed as from the rotary shaft towards the leaf
End with first curvature since suction side to discharge lateral bend, moreover, be also formed as after flex point with less than described the
The torsion of one curvature since suction side to discharge lateral bend,
On the end face of the bell-mouthed closest blade, when from from the surfaces of revolution, positioned at the end of discharge direction
Portion and angle position and the position of the flex point that circumferentially direction changes are substantially aligned.
2. screw ventilation as claimed in claim 1, it is characterised in that be projected in the plane of the rotary shaft
The hinder marginal part convex is formed in reverse directions from the rotary shaft towards the blade tip, moreover, passing through flex point
Afterwards, formation is linear or forms convex in a rotational direction.
3. screw ventilation as claimed in claim 1 or 2, it is characterised in that
For the multiple blade each for,
BLADE FORCE acts on bent with described first among the hinder marginal part relative to the rotation direction of principal axis towards peripheral direction
The position of rate formation, and
BLADE FORCE acts on bent with described second among the hinder marginal part relative to the rotation direction of principal axis towards interior circumferential direction
The position of rate formation.
4. screw ventilation as claimed in claim 1 or 2, it is characterised in that with protective cover, the protective cover makes air
By the discharge side of the blade and foreign matter more than given size is prevented to be mixed into, with propeller more than specific length
Distance.
5. a kind of air conditioner, possesses：
Framework, the framework has the suction inlet and blow-off outlet of air；
Heat exchanger, the heat exchanger configuration is in the framework；
Blower fan, the blower fan configuration is in the upstream side or downstream of the heat exchanger, the sky sucked by the suction inlet outside framework
Gas is simultaneously blown out from the blow-off outlet, and the air conditioner is characterised by,
The blower fan uses screw ventilation as claimed in claim 1 or 2.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2013/054451 WO2014128908A1 (en) | 2013-02-22 | 2013-02-22 | Propeller fan and air conditioner equipped with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105008723A CN105008723A (en) | 2015-10-28 |
| CN105008723B true CN105008723B (en) | 2017-08-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380073430.XA Active CN105008723B (en) | 2013-02-22 | 2013-02-22 | Screw ventilation and the air conditioner for possessing the screw ventilation |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20160003487A1 (en) |
| EP (1) | EP2960525B1 (en) |
| JP (1) | JP6215296B2 (en) |
| CN (1) | CN105008723B (en) |
| WO (1) | WO2014128908A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2016389531B2 (en) * | 2016-01-25 | 2019-07-18 | Mitsubishi Electric Corporation | Outdoor unit and air conditioner including the same |
| JP6849366B2 (en) | 2016-09-29 | 2021-03-24 | 山洋電気株式会社 | Reversible flow fan |
| JP2018115807A (en) * | 2017-01-18 | 2018-07-26 | 日立ジョンソンコントロールズ空調株式会社 | Outdoor unit for air conditioner |
| CN110914553B (en) * | 2017-08-14 | 2021-02-19 | 三菱电机株式会社 | Impeller, blower and air conditioner |
| JP6988397B2 (en) | 2017-11-16 | 2022-01-05 | 日本電産株式会社 | Axial fan |
| WO2019150567A1 (en) * | 2018-02-02 | 2019-08-08 | 三菱電機株式会社 | Axial flow fan |
| JP7173939B2 (en) * | 2019-08-26 | 2022-11-16 | ダイキン工業株式会社 | Blower and heat pump unit |
| JPWO2022249270A1 (en) * | 2021-05-25 | 2022-12-01 |
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| CN1768237A (en) * | 2003-03-31 | 2006-05-03 | 东芝开利株式会社 | Outdoor unit for air conditioner |
| US7125220B2 (en) * | 2004-05-06 | 2006-10-24 | Sunonwealth Electric Machine Industry Co., Ltd. | Axial-flow type fan having an air outlet blade structure |
| CN202132272U (en) * | 2011-07-11 | 2012-02-01 | 珠海格力电器股份有限公司 | Electromagnetic oven and cooling fan thereof |
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| US2212041A (en) * | 1939-06-08 | 1940-08-20 | Iig Electric Ventilating Compa | Fan wheel |
| US2578806A (en) * | 1949-06-04 | 1951-12-18 | Johnson Lawrence | Propeller |
| US4142844A (en) * | 1977-05-31 | 1979-03-06 | Allware Agencies Ltd. | Fan blade assemblies for box fans |
| JPS6165096A (en) | 1984-09-05 | 1986-04-03 | Mitsubishi Electric Corp | Axial flow blade |
| JPS64398A (en) * | 1987-06-22 | 1989-01-05 | Matsushita Electric Works Ltd | Motor fan |
| US5466120A (en) * | 1993-03-30 | 1995-11-14 | Nippondenso Co., Ltd. | Blower with bent stays |
| US5730583A (en) * | 1994-09-29 | 1998-03-24 | Valeo Thermique Moteur | Axial flow fan blade structure |
| US5616004A (en) * | 1995-04-19 | 1997-04-01 | Valeo Thermique Moteur | Axial flow fan |
| JP2000274912A (en) * | 1999-03-25 | 2000-10-06 | Mitsubishi Electric Corp | Ventilating device for refrigerator |
| DE60044049D1 (en) * | 1999-07-22 | 2010-05-06 | Lg Electronics Inc | Axial |
| JP2002257088A (en) * | 2001-03-06 | 2002-09-11 | Toshiba Kyaria Kk | Axial flow fan |
| JP3744489B2 (en) * | 2002-12-20 | 2006-02-08 | ダイキン工業株式会社 | Blower |
| JP2006002584A (en) * | 2004-06-15 | 2006-01-05 | Samsung Electronics Co Ltd | Propeller fan and air conditioner using the same |
| JP4662438B2 (en) * | 2004-12-01 | 2011-03-30 | 東芝キヤリア株式会社 | Axial fan, outdoor unit of air conditioner |
| JP3912418B2 (en) * | 2005-08-01 | 2007-05-09 | ダイキン工業株式会社 | Axial fan |
| JP4818184B2 (en) | 2007-04-09 | 2011-11-16 | 三菱電機株式会社 | Propeller fan |
| JP5396965B2 (en) * | 2009-03-30 | 2014-01-22 | ダイキン工業株式会社 | Axial blower, air conditioner and ventilator |
| JP5079063B2 (en) * | 2010-08-25 | 2012-11-21 | 三菱電機株式会社 | Propeller, blower and heat pump device |
| JP5418538B2 (en) * | 2011-04-28 | 2014-02-19 | 三菱電機株式会社 | Blower |
| JP5689538B2 (en) * | 2011-11-10 | 2015-03-25 | 三菱電機株式会社 | Outdoor cooling unit for vehicle air conditioner |
-
2013
- 2013-02-22 WO PCT/JP2013/054451 patent/WO2014128908A1/en active Application Filing
- 2013-02-22 JP JP2015501179A patent/JP6215296B2/en active Active
- 2013-02-22 CN CN201380073430.XA patent/CN105008723B/en active Active
- 2013-02-22 US US14/768,927 patent/US20160003487A1/en not_active Abandoned
- 2013-02-22 EP EP13875684.6A patent/EP2960525B1/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1768237A (en) * | 2003-03-31 | 2006-05-03 | 东芝开利株式会社 | Outdoor unit for air conditioner |
| US7125220B2 (en) * | 2004-05-06 | 2006-10-24 | Sunonwealth Electric Machine Industry Co., Ltd. | Axial-flow type fan having an air outlet blade structure |
| CN202132272U (en) * | 2011-07-11 | 2012-02-01 | 珠海格力电器股份有限公司 | Electromagnetic oven and cooling fan thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2960525A4 (en) | 2016-10-12 |
| CN105008723A (en) | 2015-10-28 |
| WO2014128908A1 (en) | 2014-08-28 |
| JP6215296B2 (en) | 2017-10-18 |
| US20160003487A1 (en) | 2016-01-07 |
| JPWO2014128908A1 (en) | 2017-02-02 |
| EP2960525B1 (en) | 2022-10-19 |
| EP2960525A1 (en) | 2015-12-30 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170817 Address after: Hongkong aoteng Plaza No. 8 Linze street, Kowloon Bay China 12 floor Patentee after: Johnson Controls Hitachi air conditioning technology (Hongkong) Co., Ltd. Address before: Tokyo, Japan Patentee before: Hitachi Appliances Inc. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180703 Address after: Tokyo, Japan, Japan Patentee after: Hitachi Johnson Controls Air Conditioning Co., Ltd. Address before: Hongkong aoteng Plaza No. 8 Linze street, Kowloon Bay China 12 floor Patentee before: Johnson Controls Hitachi air conditioning technology (Hongkong) Co., Ltd. |
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| TR01 | Transfer of patent right |