CN104685218B - Propeller type fan - Google Patents
Propeller type fan Download PDFInfo
- Publication number
- CN104685218B CN104685218B CN201280076216.5A CN201280076216A CN104685218B CN 104685218 B CN104685218 B CN 104685218B CN 201280076216 A CN201280076216 A CN 201280076216A CN 104685218 B CN104685218 B CN 104685218B
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- Prior art keywords
- propeller type
- type fan
- blade
- secondary flow
- flow control
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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
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
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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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
- F04D29/684—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid injection
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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
-
- 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
- F04D29/329—Details of the hub
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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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
- F04D29/682—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid extraction
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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
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
Abstract
The present invention relates to propeller type fan (1), the propeller type fan has：Hub portion (3), the hub portion (3) have barrel (3a)；And multiple blades (5), the outer peripheral face (3d) of the barrel of the multiple blade (5) from the hub portion extends radially, between blade described in adjacent pair on the outer peripheral face, it is provided with secondary flow control gap (7), multiple secondary flow control gaps penetrate the barrel respectively, and connect the inside in the hub portion and the outside in the hub portion, the downstream closing of the barrel, the upstream end of the barrel opens, when from side, the rotation axis that multiple secondary flow control gaps are respectively relative to the propeller type fan obliquely extends, and obliquely extend on the formation direction identical direction of the blade root base portion with the multiple blade.
Description
Technical field
The present invention relates to propeller type fan, air-supply arrangement and outdoor unit.
Background technology
Propeller type fan typically has the cylindric hub being connected with driving source and extended radially from hub outer peripheral face
More pieces of blades.In addition, Patent Document 1 discloses following structure, in each blade, the maximum position of camber ratio is set
In the position of the closer blade root base portion compared with blade outer peripheral edge, and make camber ratio from the maximum position of camber ratio to blade
Foundation portion successively decreases.Using the structure, near blade root base portion, it is suppressed that the generation of whirlpool is without doing big work(.
Citation
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2012-052443 publications (mainly Fig. 1)
The content of the invention
Invent problem to be solved
Further, since the Coriolis force and adjacent blade that are inversely acted in the direction of rotation with propeller type fan
The barometric gradient balance in face, therefore, interlobate air-flow is along blades flows.But the presence of above-mentioned barometric gradient is throughout hub
Outer peripheral face, and in the boundary layer of hub outer peripheral face, the relative velocity of air-flow is small, so, Coriolis force diminishes.Therefore, in hub
Near outer peripheral face, above-mentioned balance is destroyed, and due to the influence of above-mentioned barometric gradient, produces the Secondary Flow towards adjacent blades.And
And due to the reason for Secondary Flow and blade collide and whirlpool generation, and the whirlpool turns into noise.
On the other hand, according to the propeller type fan disclosed in patent document 1, by making camber ratio maximum from camber ratio
Position successively decrease to blade root base portion, can suppress in whirlpool caused by the connecting portion of blade and hub, but blade and hub be present
The work(of blade near connecting portion diminishes the problem of such.
The present invention makes in view of the foregoing, and its object is to provide a kind of propeller type fan, it can suppress
Whirlpool caused by the connecting portion of blade and hub, and the low noise of fan is realized, and independent of the leaf near blade root base portion
The setting of the camber ratio of piece.
The means used to solve the problem
Propeller type fan of the invention for reaching above-mentioned purpose has：Hub portion, the hub portion have barrel；And
Multiple blades, the outer peripheral face of the multiple blade from the barrel in the hub portion extends radially, on the outer peripheral face
Adjacent pair described between blade, be provided with secondary flow control gap, multiple secondary flow control gaps penetrate respectively
The barrel, and the inside in the hub portion and the outside in the hub portion are connected, the downstream closing of the barrel, the upstream of the barrel
End opens, and when from side, multiple secondary flow control gaps are respectively relative to the rotation axis of the propeller type fan
Obliquely extend, and obliquely extend on the formation direction identical direction of the blade root base portion with the multiple blade.
Air-supply arrangement of the invention for reaching the purpose has：The propeller type fan of the invention described above；To described
Propeller type fan assigns the driving source of driving force；And accommodate the propeller type fan and the housing of the driving source.
Also, the outdoor unit of the invention for reaching the purpose has：Heat exchanger；The propeller type wind of the invention described above
Fan；The driving source of driving force is assigned to the propeller type fan；And accommodate the propeller type fan, the driving source and
The housing of the heat exchanger.
The effect of invention
According to the propeller type fan of the present invention, can suppress, in whirlpool caused by the connecting portion of blade and hub, to realize wind
The low noise of fan, and the setting of the camber ratio independent of the blade near blade root base portion.
Brief description of the drawings
Brief description of the drawings
Fig. 1 is the stereogram for the propeller type fan that embodiments of the present invention 1 are represented from downstream.
Fig. 2 is the side view of the propeller type fan of present embodiment 1.
Fig. 3 is the figure of the air-flow on the hub outer peripheral face for the propeller type fan for illustrating present embodiment 1.
Fig. 4 is the figure of the air-flow in the gap on the hub outer peripheral face that explanation passes through the propeller type fan of present embodiment 1.
Fig. 5 is related to embodiments of the present invention 2, is the figure for the set location for illustrating the gap on hub outer peripheral face.
Fig. 6 is related to embodiments of the present invention 3, is the figure for the set location for illustrating the gap on hub outer peripheral face.
Fig. 7 is related to embodiments of the present invention 4, is the figure for the set location for illustrating the gap on hub outer peripheral face.
Fig. 8 is related to embodiments of the present invention 5, is the figure for the shape for illustrating the gap on hub outer peripheral face.
Fig. 9 is related to embodiments of the present invention 6, is the figure for the shape for illustrating the gap on hub outer peripheral face.
Figure 10 is the figure for the interlobate air-flow for illustrating the propeller type fan by being used as comparative example.
Stereograms of the Figure 11 from blow-off outlet side during the outdoor unit of embodiments of the present invention 7.
Figure 12 is related to present embodiment 7, is the figure for illustrating the structure of outdoor unit from upper face side.
Figure 13 is related to present embodiment 7, is the figure for representing to have pulled down the state of fan grill.
Figure 14 is related to present embodiment 7, is further to remove front panel etc. and represent the figure of internal structure.
Embodiment
Hereinafter, the embodiment of the propeller type fan based on the brief description of the drawings present invention.In addition, in the accompanying drawings, it is identical attached
Icon note represents identical or corresponding part.
Embodiment 1
Fig. 1 is the stereogram for the propeller type fan that embodiments of the present invention 1 are represented from downstream.Fig. 2, Fig. 3 and
Fig. 4 is that the side view of propeller type fan, the figure of air-flow on explanation hub outer peripheral face and explanation pass through the air-flow in gap respectively
Figure.Propeller type fan 1 has hub portion 3 and multiple blades 5.
Hub portion 3 has cylindric barrel 3a.In the output shaft of the driving sources such as the central portion 3b connection motors in hub portion 3, spiral shell
Propeller type fan 1 is rotated using the driving force of the driving source.In addition, the reference RD in Fig. 1 represents propeller type fan 1
Direction of rotation, the reference RA in Fig. 2 represent the rotation axis of propeller type fan 1, and reference US is schematically shown
The air-flow of upstream, reference DS schematically show the air-flow in downstream.
Most preferably as shown in figure 4, the barrel 3a in hub portion 3 downstream is closed by ceiling plate portion 3c.On the other hand, hub portion 3
Barrel 3a upstream end opens, thus, the inside in hub portion 3 and the ft connection in hub portion 3.
Multiple blades 5 from the barrel 3a in hub portion 3 outer peripheral face 3d are extended radially.In addition, multiple 5 mutual shapes of blade
It is identical and be arranged at intervals with identical.Blade 5 has outer peripheral edge 5a, blade root base portion 5b, leading edge 5c, trailing edge 5d, malleation respectively
Face 5e and suction surface 5f.
Outer peripheral edge 5a is the edge of the radial outside of blade 5, and is the edge extended in the circumferential.On the contrary, blade
Foundation portion 5b is the part being connected on blade 5 with the outer peripheral face 3d in hub portion 3.Leading edge 5c is front end and the blade for connecting outer peripheral edge 5a
The edge of foundation portion 5b front end, and be the edge of the direction of rotation front side of propeller type fan 1.Similarly, trailing edge 5d
It is the edge of the rear end and blade root base portion 5b rear end that connect outer peripheral edge 5a, and is the direction of rotation of propeller type fan 1
The edge of rear side.In the construction illustrated, leading edge 5c and trailing edge 5d bend to and are more located direction of rotation toward radial outside
Front.
See with overlooking, pressure surface 5e and suction surface 5f are by outer peripheral edge 5a, blade root base portion 5b, leading edge 5c and trailing edge
The blade face that 5d delimited.Pressure surface 5e and suction surface 5f is mutually in positive and negative relation.Pressure surface 5e is due to propeller type wind
The blade face in 1 rotation and the downstream of caused air-flow is fanned, suction surface 5f is the blade face of the upstream side of the air-flow.In addition,
In the construction illustrated, pressure surface 5e is directed towards the concave surface in downstream, and suction surface 5f is directed towards the convex surface of upstream side.
Between adjacent pair blade 5 on the outer peripheral face 3d in hub portion 3, secondary flow control gap 7 is provided with.Most preferably
As shown in figure 4, the barrel in each insertion hub portion 3 in the multiple secondary flow control gaps 7 of the outer peripheral face 3d in hub portion 3 on the whole
3a, and connect the inside in hub portion 3 and the outside in hub portion 3.
In addition, most preferably as shown in Fig. 2 when from side, each of multiple secondary flow control gaps 7 is relative to spiral shell
The rotation axis RA of propeller type fan obliquely extends, and identical in the formation direction of the blade root base portion 5b with multiple blades 5
Direction on obliquely extend.In the construction illustrated, from the side, secondary flow control gap 7 point-blank extends respectively, and inclines
Oblique front sides of the Cheng Yue on the direction of rotation of propeller type fan, it is located the upstream side of air-flow.
Then, the air-supply action of the propeller type fan of present embodiment 1 is illustrated.First, based on Figure 10, illustrate without this
Invention it is feature, as the flowing on the propeller type fan of comparative example.In the radial direction central portion of blade 55, such as arrow F3 institutes
Show, from the air-flow of upstream side inflow propeller type fan along blade 55, downstream side is flowed.On the other hand, in the outer of hub portion 53
On side face, as shown in arrow F4, leading edge of the air-flow in the pressure surface 55e from blade 55 of propeller type fan is flowed into from upstream side
55c is nearby towards after the suction surface 55f of adjacent blade 55, and downstream side is flowed into whirlpool.
That is, in interlobate radial direction central portion, due in the Coriolis force inversely acted on direction of rotation and from leaf
The pressure surface 55e of piece 55 is balanced to the suction surface 55f of adjacent blade 55 barometric gradient, and interlobate air-flow is formed along leaf
The flowing of piece 55.But the presence of above-mentioned barometric gradient is throughout the outer peripheral face in hub portion 53, and the border of the outer peripheral face in hub portion 53
The relative velocity of layer interior air-flow is small, so, Coriolis force diminishes.Therefore, because the influence of above-mentioned barometric gradient, produces direction
The Secondary Flow of the suction surface of adjacent blades.Because the Secondary Flow and suction surface collide, whirlpool is produced.
And on the other hand, in present embodiment 1, the upstream face in hub portion 3 opens, the inside in hub portion 3 and propeller
The upstream side communication of formula fan 1, be provided with the outer peripheral face in hub portion 3 by cross it is interlobate in a manner of connect the inside in hub portion 3
With the secondary flow control gap 7 of outside.Therefore, in the case of the pressure height of the inside in interlobate pressure ratio hub portion 3, such as scheme
In 3 and Fig. 4 shown in the arrow F1 of solid line, secondary flow control gap 7 on the outer peripheral face 3d that Secondary Flow passes through hub portion 3 is inhaled into
The inside in hub portion 3.Because Secondary Flow is inhaled into the inside in hub portion 3, so as to suppress the air-flow flowed to suction surface 5f, by
This, can suppress the disorder of the air-flow as caused by the generation of whirlpool.On the contrary, in the inside in interlobate pressure ratio hub portion 3
In the case that pressure is low, as shown in the arrow F2 of dotted line in Fig. 3 and Fig. 4, produce from the inside in hub portion 3, pass through the outer of hub portion 3
The air-flow that secondary flow control gap 7 on side face 3d is flowed out to outside.Due to the air-flow, outer peripheral face 3d of the Secondary Flow from hub portion 3
On boundary layer separation, so can suppress to suction surface 5f flow air-flow, the gas as caused by the generation of whirlpool can be suppressed
The disorder of stream.
Further, since secondary flow control gap 7 relative to propeller type fan rotation axis RA with the identical of blade 5
Side is inclined upwardly, thus it is possible to reduce effect of the secondary flow control gap 7 to being brought parallel to the air-flow of blade 5, also, it is logical
Cross turns into right angle relative to Secondary Flow, can increase inhibition caused by above-mentioned whirlpool.
As described above, according to the propeller type fan of embodiment 1, can be suppressed using secondary flow control gap in leaf
Whirlpool caused by the connecting portion of piece and hub, and realize the low noise of fan.In addition, thus, due to being not dependent on blade foundation
The setting of the camber ratio of blade near portion, it can also suppress whirlpool while making all effectively to do work near blade root base portion
The generation in whirlpool.
Embodiment 2
Fig. 5 is related to embodiments of the present invention 2, is the figure for the set location for illustrating the gap on hub outer peripheral face.Fig. 5 is represented
The outer peripheral face 3d in hub portion 3 state is partly expanded, in the figure, it is illustrated that the blade root base portion 5b of a pair of blades 5 and position
In the secondary flow control gap 107 between them.
In Figure 5, the imaginary line VL1 of the multiple leading edge 5c of connection on imagination blade root base portion 5b position, blade root
The imaginary line VL2 of the multiple trailing edge 5d of connection on base portion 5b position.In present embodiment 2, secondary flow control gap 107 is set
Put between imaginary line VL1 and imaginary line VL2.In addition, other features in secondary flow control gap 107 can also be with
The secondary flow control gap 7 of above-mentioned embodiment 1 is identical.
In the same manner as above-mentioned embodiment 1, it can also suppress to produce in the connecting portion of blade and hub in present embodiment 2
Whirlpool, realize the low noise of fan.Particularly in present embodiment 2, held due to big in interlobate barometric gradient
It is also easy to produce in the range of Secondary Flow and is restrictively provided with secondary flow control gap, while the influence to main flow is reduced, energy
Enough suppress the generation of whirlpool.
Embodiment 3
Fig. 6 is related to embodiments of the present invention 3, is the figure for the set location for illustrating the gap on hub outer peripheral face, is and Fig. 5
With the figure of form.In figure 6, with Fig. 5 identical imaginary lines VL1, VL2 on the basis of, further imagination extends past one
To the imaginary line VL3 in the centre position in the circumference of adjacent blade (blade root base portion 5b).More specifically, imaginary line VL3
It is that the scope of the trailing edge from the leading edge of a pair of blades to a pair of blades connects a pair of mean camber line (blades on a pair of adjacent blades
Mid-depth line) CL circumference on midpoint obtained from line.
In present embodiment 3, secondary flow control gap 207 is prolonged between imaginary line VL1 and imaginary line VL2
Stretch, and compared with imaginary line VL3 in the region of so-called front side of the configuration on the direction of rotation RD of propeller type fan.This
Outside, other features in secondary flow control gap 207 can also be identical with the secondary flow control gap 7 of above-mentioned embodiment 1.
In present embodiment 3, the advantages of identical with above-mentioned embodiment 2 can be also obtained.Also, in present embodiment
In 3, due to secondary flow control gap 207 be disposed proximate to the most strong suction surface 5f of Secondary Flow position (that is, with pressure surface 5e phases
Than closer suction surface 5f position), it can significantly obtain the effect of the suppression to Secondary Flow.
Embodiment 4
Fig. 7 is related to embodiments of the present invention 4, is the figure for the set location for illustrating the gap on hub outer peripheral face, is and Fig. 5
With the figure of form.In the figure 7, with Fig. 6 identical imaginary lines VL1, VL2, VL3 on the basis of, further imagination imaginary line
VL4、VL5。
First, in the figure 7, imaginary line VL4 is to be located at the line with a pair of imaginary line VL1, VL2 equidistants, in other words,
It is the line in the centre position on the rotation axis direction for extend past a pair of imaginary line VL1, VL2, propeller type fan.Separately
Outside, in the figure 7, by the leaf of the so-called front side on direction of rotation RD in corresponding a pair of blades 5, propeller type fan
When mean camber line (vane thickness center line) CL and imaginary line VL4 of piece 5 intersection point are set to P, by the leaf of rear side corresponding to connection
The intersection point P of the leading edge 5c of piece 5 and the blade 5 of corresponding front side line segment imagination is used as imaginary line VL5.
Moreover, in present embodiment 4, model of the secondary flow control gap 307 between imaginary line VL1 and imaginary line VL2
Enclose interior extension, and compared with imaginary line VL3 so-called front side of the configuration on the direction of rotation RD of propeller type fan region
It is interior, and compared with imaginary line VL5 in the region of so-called rear side of the configuration on the direction of rotation RD of propeller type fan.Change sentence
Talk about, in the figure 7, secondary flow control gap 307 is configured by imaginary line VL2, imaginary line VL3, imaginary line VL5 and corresponding
The blade 5 of so-called front side on the direction of rotation RD of propeller type fan in a pair of blades 5 is surrounded in the region formed.This
Outside, other features in secondary flow control gap 307 can also be identical with the secondary flow control gap 7 of above-mentioned embodiment 1.
In present embodiment 4, the advantages of identical with above-mentioned embodiment 3 can be also obtained.Also, with following excellent
Point, near the leading edge of the hub portion connecting portion on the blade from rear side, to adjacent front side blade leading edge with after
The midpoint of edge nearby untill trailing edge, extremely easily produces the place of Secondary Flow, in present embodiment 4, extremely held this
It is also easy to produce in the region of Secondary Flow, is more concentrated at obtaining the effect brought by secondary flow control gap.
Embodiment 5
Fig. 8 is related to embodiments of the present invention 5, is the figure for the set location for illustrating the gap on hub outer peripheral face, is and Fig. 5
With the figure of form.As shown in figure 8, the secondary flow control gap 407 in present embodiment 5 extends into and put down with the radian of blade 5
OK.Particularly, Fig. 8 secondary flow control gap 407 is further limited one in present embodiment 5, in above-mentioned reality
In the configuration (in fig. 8, imaginary line and intersection point omit diagram) for applying the secondary flow control gap of mode 4, further it is allowed to
Bend to parallel with the radian of blade 5 and formed.In addition, the secondary flow control gap that present embodiment 5 is related to is in above-mentioned reality
Apply in the secondary flow control gap of any one in mode 1~4 and extend into the gap parallel with the radian of blade, might not
It is defined in Fig. 8 diagram state.
The advantages of identical with above-mentioned embodiment 1 is also at least obtained in present embodiment 5, and due to secondary flow control
Gap is parallel also relative to the main flow of interlobate air-flow, thus it is possible to reduce the influence brought to main flow.
Embodiment 6
Fig. 9 is related to embodiments of the present invention 6, is the figure for the set location for illustrating the gap on hub outer peripheral face, is and Fig. 5
With the figure of form.As shown in figure 9, relative to the blade pitgh in the circumference of corresponding a pair of blades 5 from L, in present embodiment 6
Secondary flow control gap 507 extended with below L/10 width (size on the direction orthogonal with gap extending direction).Separately
Outside, the other structures in secondary flow control gap 507 are set to stitch with the secondary flow control of any one in above-mentioned embodiment 1~5
Gap is identical.
The advantages of identical with above-mentioned embodiment 1 is also at least obtained in present embodiment 6, in addition, passing through by increasing
The air-flow in secondary flow control gap, can reduce the influence brought to main flow.
Embodiment 7
Stereogram during outdoor unit (air-supply arrangement) of Figure 11 present embodiments 7 from blow-off outlet side, Figure 12 is to be used for
Illustrate the figure of the structure of outdoor unit from upper face side.In addition, Figure 13 represents to have pulled down the state of fan grill, Figure 14 is further to remove
Remove front panel etc. and represent the figure of internal structure.
As shown in Figure 11~14, outdoor unit main body (housing) 51 is configured to pair of right and left side 51a, 51c, preceding surface
51b, back side 51d, upper surface 51e and bottom surface 51f framework.In order to suck air (the arrow A of reference picture 12), side from outside
Face 51a and back side 51d have opening portion.In addition, in preceding surface 51b, formed with for being blown out to outside on front panel 52
Air (the arrow A of reference picture 12), blow-off outlet 53 as opening portion.Also, blow-off outlet 53 is covered by fan grill 54,
Thus, it is therefore prevented that object etc. contacts with propeller type fan 1 and realizes safety.
Propeller type fan 1 is provided with outdoor unit main body 51.Propeller type fan 1 is in above-mentioned embodiment 1~6
The propeller type fan of any one.Propeller type fan 1 is via rotary shaft 62 and the fan electromotor in back side 51d sides
(driving source) 61 connects, and by the rotation driving of fan electromotor 61.
The inside of outdoor unit main body 51 is divided into receiving by dividing plate (wall body) 51g, is provided with the air-supply of propeller type fan 1
Room 56 and the Machine Room 57 for being provided with the grade of compressor 64.During vertical view, side 51a sides and back side 51d mono- in plenum chamber 56
Side is provided with the heat exchanger 68 in the extension of substantially L-shaped.
On the outside of the radial direction for the propeller type fan 1 being configured in plenum chamber 56, horn mouth 63 is configured with.Horn mouth
63 are more located at outside compared with the outer circumference end of blade 5, and are formed as ring-type along the direction of rotation of propeller type fan 1.In addition,
Dividing plate 51g is set the side of a side side of horn mouth 63 (being right on the paper in Figure 12), in the opposing party of horn mouth 63
The side (being left on Figure 12 paper) of side (opposite direction) sets a part for heat exchanger 68.
The front end of horn mouth 63 is connected in a manner of surrounding the periphery of blow-off outlet 53 with the front panel 52 of outdoor unit.In addition,
Horn mouth 63 can be both integrally formed with front panel 52, or can also be prepared as the part for separating and being formed by connecting.Profit
With the horn mouth 63, the stream between the suction side and blowout side of horn mouth 63 is formed as the wind path near blow-off outlet 53.That is,
Wind path near blow-off outlet 53 is divided into other spaces in plenum chamber 56 by horn mouth 63.
The heat exchanger 68 for being arranged on the suction side of propeller type fan 1 has：It is arranged side by side into parallel more in face of tabular
Individual fin and it is arranged side by side the heat-transfer pipe of each fin is penetrated on direction at this.Circulate in heat-transfer pipe and followed in refrigerant loop
The refrigerant of ring.The heat-transfer pipe of the heat exchanger 68 of present embodiment is in L on the side 51a and back side 51d of outdoor unit main body 51
Shape extends, and as shown in figure 14, multistage heat-transfer pipe is configured to penetrate fin while warpage.In addition, heat exchanger 68 is via pipe
The grade of road 65 is connected with compressor 64, and indoor heat exchanger, expansion valve with illustrating omission etc. is connected and forms air-conditioning device
Refrigerant loop.In addition, substrate box 66 is configured with Machine Room 57, by the control base board 67 being arranged in the substrate box 66
Control is mounted in the equipment in outdoor unit.
In present embodiment 7, the advantages of identical with corresponding above-mentioned embodiment 1~6 can be also obtained.
In addition, as the outdoor unit comprising air-supply arrangement, present embodiment 7 is carried out by taking the outdoor unit of air-conditioning device as an example
Illustrate, but the present invention is not limited to this, such as can be used as the outdoor unit of water heater etc. to implement, and can widely answer
The device blown is used as, can also apply in the device beyond outdoor unit, equipment etc..
Present disclosure is specifically illustrated above by reference to preferred embodiment, but those skilled in the art certainly can
Basic fundamental thought and teaching based on the present invention obtain various variants.In addition, the present invention can be widely used in example
In such as heat exchanger of pressure fan, air conditioner, the outdoor unit of water heater, kind of refrigeration cycle etc..
Description of reference numerals
1 propeller type fan, 3 hub portions, 3a barrels, 3d outer peripheral faces, 5 blades, 7,107,207,307,407,507 Secondary Flows
Control gap, 51 outdoor unit main bodies (housing), 61 fan electromotors (driving source), 68 heat exchangers.
Claims (6)
1. a kind of propeller type fan, has：
Hub, the hub have barrel；And
Multiple blades, the outer peripheral face of the multiple blade from the barrel in the hub portion extend radially,
Between blade described in adjacent pair on the outer peripheral face, secondary flow control gap is provided with,
The secondary flow control gap penetrates the barrel, and connects the inside of the hub and the outside of the hub,
The downstream closing of the barrel, the upstream end of the barrel open,
When from side, the secondary flow control gap obliquely extends relative to the rotation axis of the propeller type fan,
And obliquely extend on the formation direction identical direction of the blade foundation with the multiple blade,
The secondary flow control gap bending extend into it is parallel with the radian of the blade,
Relative to the distance L in the circumference of corresponding a pair of blades, the secondary flow control gap is prolonged with below L/10 width
Stretch.
2. propeller type fan according to claim 1, it is characterised in that
On the position of the blade foundation of the blade, the multiple leading edges of connection imaginary lines are set to VL1, multiple trailing edges will be connected
Imaginary line when being set to VL2, the secondary flow control gap is arranged between imaginary line VL1 and imaginary line VL2.
3. propeller type fan according to claim 2, it is characterised in that
When will extend past the imaginary line in centre position of a pair of adjacent blades and be set to VL3, the secondary flow control
Slot arrangement is in the region of the front side compared with imaginary line VL3, on the direction of rotation of propeller type fan.
4. propeller type fan according to claim 3, it is characterised in that
Imaginary line VL4 will be set to positioned at the line with a pair of imaginary line VL1, VL2 equidistants,
In on the blade of the front side on direction of rotation in corresponding a pair blades, propeller type fan
When the intersection point of camber line and the imaginary line VL4 is set to P, by the leading edge of the blade of rear side corresponding to connection and corresponding front side
The line segment of the intersection point P of blade be set to imaginary line VL5, now,
The secondary flow control slot arrangement compared with the imaginary line VL5, on the direction of rotation of propeller type fan after
In the region of square side.
5. a kind of air-supply arrangement, has：
The propeller type fan of any one of Claims 1-4；
The driving source of driving force is assigned to the propeller type fan；And
Accommodate the propeller type fan and the housing of the driving source.
6. a kind of outdoor unit, has：
Heat exchanger；
The propeller type fan of any one of Claims 1-4；
The driving source of driving force is assigned to the propeller type fan；And
Accommodate the housing of the propeller type fan, the driving source and the heat exchanger.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2012/075656 WO2014054132A1 (en) | 2012-10-03 | 2012-10-03 | Propeller fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104685218A CN104685218A (en) | 2015-06-03 |
| CN104685218B true CN104685218B (en) | 2018-03-16 |
Family
ID=50434493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280076216.5A Active CN104685218B (en) | 2012-10-03 | 2012-10-03 | Propeller type fan |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20150204345A1 (en) |
| EP (1) | EP2905474B1 (en) |
| JP (1) | JP5984162B2 (en) |
| CN (1) | CN104685218B (en) |
| WO (1) | WO2014054132A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2925702T3 (en) * | 2017-08-09 | 2022-10-19 | Mitsubishi Electric Corp | Propeller fan, blowing element and refrigeration cycle apparatus |
| USD910834S1 (en) * | 2018-12-05 | 2021-02-16 | Asia Vital Components Co., Ltd. | Impeller for a fan |
| CN111692128B (en) * | 2020-05-21 | 2021-12-10 | 西安交通大学 | Structure is handled to transonic compressor combination machine casket |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4150919A (en) * | 1977-06-10 | 1979-04-24 | Wallace Murray Corporation | Radiator cooling fan construction |
| JPS6357896A (en) * | 1986-08-29 | 1988-03-12 | Oriental Motor Co Ltd | Axial blower |
| JPH0431697A (en) * | 1990-05-24 | 1992-02-03 | Seiko Epson Corp | Vane structure of axial flow blower |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3385516A (en) * | 1966-03-31 | 1968-05-28 | Gen Electric | Fan construction |
| JPS49149855U (en) * | 1973-04-24 | 1974-12-25 | ||
| JPS5539381U (en) * | 1978-09-06 | 1980-03-13 | ||
| JPS5890399U (en) * | 1981-12-14 | 1983-06-18 | 株式会社東芝 | Impeller mounting device |
| JPS603299U (en) * | 1983-06-21 | 1985-01-11 | 臼井国際産業株式会社 | engine cooling fan |
| US4583911A (en) * | 1983-10-24 | 1986-04-22 | Minnesota Mining And Manufacturing Company | Multiple fluid pathway energy converter |
| US4971143A (en) * | 1989-05-22 | 1990-11-20 | Carrier Corporation | Fan stator assembly for heat exchanger |
| JP4083259B2 (en) * | 1997-05-28 | 2008-04-30 | 松下エコシステムズ株式会社 | Axial fan |
| JPH11230092A (en) * | 1998-02-12 | 1999-08-24 | Japan Servo Co Ltd | Axial fan |
| JP3510120B2 (en) * | 1998-10-07 | 2004-03-22 | 山洋電気株式会社 | Blower with waterproof structure |
| US6565320B1 (en) * | 2000-11-13 | 2003-05-20 | Borgwarner, Inc. | Molded cooling fan |
| JP2003232542A (en) * | 2002-02-07 | 2003-08-22 | Sanyo Electric Co Ltd | Air conditioner |
| JP3793138B2 (en) * | 2002-10-25 | 2006-07-05 | 松下エコシステムズ株式会社 | Duct fan |
| ES2300799T3 (en) * | 2003-04-28 | 2008-06-16 | Robert Bosch Llc | CAR ENGINE COOLING FAN ASSEMBLY. |
| JP4467952B2 (en) * | 2003-11-10 | 2010-05-26 | 東芝キヤリア株式会社 | Propeller fan, outdoor unit for air conditioner using this |
| JP2006226200A (en) * | 2005-02-18 | 2006-08-31 | Hitachi Constr Mach Co Ltd | Engine cooling device |
| JP2007023964A (en) * | 2005-07-20 | 2007-02-01 | Denso Corp | Blast device |
| JP5593976B2 (en) | 2010-08-31 | 2014-09-24 | ダイキン工業株式会社 | Propeller fan |
| CN202326418U (en) * | 2011-12-09 | 2012-07-11 | 温州车舟汽车部件有限公司 | Hub opening high-efficient diversion internal combustion engine cooling fan |
-
2012
- 2012-10-03 WO PCT/JP2012/075656 patent/WO2014054132A1/en active Application Filing
- 2012-10-03 CN CN201280076216.5A patent/CN104685218B/en active Active
- 2012-10-03 EP EP12886000.4A patent/EP2905474B1/en active Active
- 2012-10-03 JP JP2014539524A patent/JP5984162B2/en active Active
- 2012-10-03 US US14/423,495 patent/US20150204345A1/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4150919A (en) * | 1977-06-10 | 1979-04-24 | Wallace Murray Corporation | Radiator cooling fan construction |
| JPS6357896A (en) * | 1986-08-29 | 1988-03-12 | Oriental Motor Co Ltd | Axial blower |
| JPH0431697A (en) * | 1990-05-24 | 1992-02-03 | Seiko Epson Corp | Vane structure of axial flow blower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104685218A (en) | 2015-06-03 |
| EP2905474B1 (en) | 2019-08-28 |
| EP2905474A1 (en) | 2015-08-12 |
| WO2014054132A1 (en) | 2014-04-10 |
| JPWO2014054132A1 (en) | 2016-08-25 |
| JP5984162B2 (en) | 2016-09-06 |
| US20150204345A1 (en) | 2015-07-23 |
| EP2905474A4 (en) | 2016-07-06 |
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