WO2015030048A1 - プロペラファン、送風装置及び室外機 - Google Patents
プロペラファン、送風装置及び室外機 Download PDFInfo
- Publication number
- WO2015030048A1 WO2015030048A1 PCT/JP2014/072416 JP2014072416W WO2015030048A1 WO 2015030048 A1 WO2015030048 A1 WO 2015030048A1 JP 2014072416 W JP2014072416 W JP 2014072416W WO 2015030048 A1 WO2015030048 A1 WO 2015030048A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- propeller fan
- protrusion
- blade
- boss
- flow
- Prior art date
Links
Images
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
-
- 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
-
- 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
- F05D2240/306—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 suction side of a rotor blade
Definitions
- the present invention relates to a propeller fan, a blower, and an outdoor unit.
- an airflow flowing into the suction surface of the blade is provided on the edge on the rear side in the rotation direction of the suction surface of the blade, by providing a protrusion substantially along the extending direction of the blade.
- Fans have been disclosed that attempt to avoid abrupt collisions with the airflow flowing into the pressure surface of the blade.
- Patent Document 2 discloses a fan that is intended to form a thick portion at the trailing edge of the blade and reattach the peeled airflow at the thick portion.
- Patent Document 3 discloses a fan that is curved so that the outer peripheral side has a concave shape and the boss side has a convex shape with respect to the airflow suction side.
- Patent Document 4 discloses a fan that rectifies the flow of blades by providing a ring-shaped member.
- Patent Document 5 discloses a fan that is intended to hold a blade tip vortex by providing a groove extending in a generally circumferential direction on the suction surface of the blade.
- Japanese Patent Laying-Open No. 2013-19335 Japanese Patent Laying-Open No. 2005-76501 (FIG. 2) JP 2011-179330 A (FIG. 4) Japanese Patent Laying-Open No. 2009-257260 (FIGS. 1 and 2) JP 2000-192898 A (FIG. 6)
- the thick portion is one aspect of a convex shape, and there is still a possibility that the blown airflow is biased radially outward as in the case of the fan disclosed in Patent Document 1.
- the present invention has been made in view of the above, and an object of the present invention is to provide a propeller fan in which the blowout flow is made uniform in the radial direction and local high-speed flow can be suppressed.
- the present invention provides a propeller fan including a boss and a plurality of blades provided on an outer periphery of the boss, wherein at least one of the blades has a protrusion on the suction surface.
- the protrusion extends in the rotational direction at a position away from the outer peripheral edge of the wing, and the inclination of the radially inner skirt of the protrusion is the inclination of the radially outer skirt of the protrusion. It is gentler than the slope. You may make it the height of the said protrusion part become so large that it goes back from the front of a rotation direction.
- a blower according to the present invention for achieving the same object accommodates the above-described propeller fan according to the present invention, a drive source for applying a driving force to the propeller fan, the propeller fan, and the drive source.
- an outdoor unit for achieving the same object includes the above-described propeller fan according to the present invention, a drive source that applies driving force to the propeller fan, the propeller fan, the drive source, and the heat. And a casing for accommodating the exchanger.
- the blow-out flow is made uniform in the radial direction, and local high-speed flow can be suppressed.
- FIG. 1 It is a perspective view which shows the outline of the propeller fan which concerns on Embodiment 1 of this invention. It is a top view of the propeller fan of FIG. It is sectional drawing by the II line
- FIG. 9 It is a top view of the propeller fan which concerns on Embodiment 3 of this invention.
- (A), (b) and (c) are sectional views taken along lines Xa, Xb and Xc in FIG. 9, respectively. It is a top view of the propeller fan which concerns on Embodiment 4 of this invention.
- (A), (b) and (c) are sectional views taken along lines XIIa, XIIb and XIIc in FIG. 11, respectively. It is a perspective view which shows the cross section of (c) of FIG. 12 about one propeller, and the part of the rotation direction front side rather than the cross section regarding the propeller fan which concerns on Embodiment 4 of this invention.
- FIG. 6 It is a perspective view when the outdoor unit which concerns on Embodiment 6 of this invention is seen from the blower outlet side. It is a figure for demonstrating the structure of an outdoor unit from the upper surface side regarding this Embodiment 6. FIG. It is a figure which shows the state which removed the fan grille regarding this Embodiment 6. FIG. It is a figure which removes a front panel etc. further about this Embodiment 6, and shows an internal configuration.
- FIG. 1 is a perspective view showing an outline of the propeller fan according to the first embodiment.
- An arrow with a symbol RD indicates a rotation direction RD of the propeller fan 1
- an arrow with a symbol FD indicates a flow direction FD of an air flow during blowing.
- the propeller fan 1 includes a boss 3 having a rotation axis RA and a plurality (three in the illustrated example) of blades 5.
- the boss 3 is provided so as to be rotatable about the rotation axis RA.
- the plurality of wings 5 are provided on the side surface 3 a of the boss 3.
- the plurality of blades 5 are formed in the same shape and are arranged at equiangular intervals.
- this invention it is not limited to this, You may vary the angular interval and shape of arrangement
- Each wing 5 has a leading edge 7, a trailing edge 9, and an outer peripheral edge 11.
- the leading edge 7 is a front edge in the rotational direction of the blade 5, and the trailing edge 9 is a rear edge in the rotational direction.
- the outer peripheral edge 11 is an edge portion that connects the radial outer end of the front edge 7 and the radial outer end of the rear edge 9.
- each blade 5 has a pressure surface 13 that is one surface that pushes the air flow during air rotation (when an air flow in the flow direction FD is generated) and a negative pressure surface 15 that is the other surface on the back side of the pressure surface 13. is doing.
- the pressure surface 13 has the same circumferential direction component as the rotation direction RD of the propeller fan 1 during the rotation of the blower when the blade surface normal direction extending from the surface is decomposed into the axial direction component and the circumferential direction component.
- the suction surface 15 is the opposite surface, that is, when the blade surface normal direction extending from the surface is decomposed into an axial component and a circumferential component, the circumferential component is It is a surface that is opposite to the rotation direction RD of the propeller fan 1 during the air rotation.
- FIG. 2 is a plan view in which the propeller fan according to the first embodiment is projected onto a surface where the rotation axis RA is orthogonal. More specifically, the rotation axis RA extends so as to be orthogonal to the paper surface of FIG. 2, the propeller fan 1 is viewed from the upstream side in the air flow direction FD, and the suction surface 15 is shown on the front side of the paper surface of FIG. Has been.
- FIG. 3 shows the propeller fan according to the first embodiment in a cross section extending in the radial direction, and is a cross-sectional view taken along the line II in FIG.
- FIG. 4 is a perspective view showing a suction surface of one blade with respect to the propeller fan according to the first embodiment.
- FIG. 5 is a diagram for explaining the flow of the airflow in FIG.
- a protrusion 17 is provided on the suction surface 15 of the blade 5.
- the protrusion part 17 is extended in the circumferential direction in general.
- the protruding portion 17 is a portion protruding away from the pressure surface 13 with respect to the reference line RL of the suction surface 15 of the blade 5.
- the reference line RL is a virtual curve that smoothly extends from the radially inner side to the radially outer side with respect to the negative pressure surface 15 in the same manner as the curve constituting the pressure surface 13.
- the protrusion 17 extends in the rotation direction, and the width (diameter dimension) of the protrusion 17 becomes narrower toward the front side in the rotation direction RD, and the protrusion 17 disappears without reaching the front edge 7. Further, the protruding portion 17 reaches the rear edge 9.
- the protrusion 17 has a vertex Pt as a portion where the height H of the protrusion 17 is the maximum with respect to each of the radial cross sections as shown in FIG. 3 as an example.
- the height H extends from the suction surface 15 toward the upstream side in the flow direction FD, and more precisely is a length in a direction perpendicular to the reference line RL.
- the protrusion 17 has a skirt portion on each of the radially inner side and the radially outer side with the vertex Pt as a boundary.
- Each of the radially inner skirt portion 17a and the radially outer skirt portion 17b is a portion that decreases the height H as it is further away from the vertex Pt in the radial direction.
- the radially inner skirt portion 17a and the radially outer skirt portion 17b are respectively , Smoothly overlaps the reference line RL at a position sufficiently away from the vertex Pt.
- the inclination of the radially inner skirt portion 17a is gentler than the inclination of the radially outer skirt portion 17b. That is, as shown in FIG.
- the length along the reference line RL seen in the radial cross section of the entire protrusion 17 is defined as the protrusion width Pw, and the radial inner base 17a of the protrusion width Pw is included in the protrusion width Pw.
- the width is the radially inner skirt width Wa and the width of the radially outer skirt width 17b is the radially outer skirt width Wb, the radially inner skirt width Wa> the radially outer skirt width Wb.
- the fact that the inclination of the radially inner skirt portion 17a is gentler than the inclination of the radially outer skirt portion 17b is that the decrease in the height H with respect to the distance away from the apex Pt (the dimension in the width direction) This is also because the reduction rate of the skirt portion 17a is smaller than the reduction rate of the radially outer skirt portion 17b.
- the thickness of the wing 5 will be described.
- the negative pressure surface 15 has the protrusions 17 as described above, while the pressure surface 13 has no protrusions. For this reason, after the thickness of the blade 5 gradually decreases from the root portion of the blade 5 connected to the boss 3 toward the outer peripheral edge 11, and once increases toward the apex of the protrusion 17, the protrusion 17 It decreases again from the top to the outer peripheral edge 11.
- the apex Pt of the projecting portion 17 may be either a sharp corner or a moderately curved portion, but in FIG. 4, an example in which the apex Pt of the projecting portion 17 is a moderately curved portion. As shown, a portion where the vertices Pt are continuous is indicated by a broken line. Further, as an example, the vertex Pt is set at a position closer to the outer peripheral edge 11 which is the tip than the root portion connected to the boss 3 in the radial direction of the blade 5.
- the protruding portion 17 is provided at a position away from the outer peripheral edge 11, and a negative pressure surface 15 along the reference line RL exists between the protruding portion 17 and the outer peripheral edge 11.
- the dotted line 17b ′ indicating the outermost portion of the radially outer skirt portion 17b is the outer peripheral edge 11. It exists in the position away from the inside in the radial direction.
- the propeller fan 1 is attached to a well-known fan motor and rotates with the rotational force of the fan motor.
- the propeller fan 1 rotates, airflow flows from the leading edge 7 of each wing and is discharged from the trailing edge 9.
- the airflow flows along the wing 5 the direction of the airflow is changed by the inclination and warpage of the wing, and the static pressure rises by the change in momentum.
- a leakage vortex 19 (blade tip vortex) is generated in the outer peripheral edge 11 due to the flow leaking from the pressure surface 13 to the negative pressure surface 15 via the outer peripheral edge 11 of the blade 5.
- the leakage vortex 19 stays in a region near the outer peripheral edge 11 of the negative pressure surface 15 as shown by the oblique lines in the figure, thereby generating a low pressure portion.
- the airflow which flows on the negative pressure surface 15 is attracted
- the protruding portion 17 since the protruding portion 17 is provided on the suction surface 15, it flows on the boss side particularly due to the presence of the inclination of the radially inner skirt portion 17a of the protruding portion 17. The airflow 21a is suppressed from being sucked radially outward. Further, since the radially inner skirt portion 17a is provided in such a manner that the height gradually changes in the radial direction, the radially inner skirt portion 17a flows on the inner peripheral side with respect to a wide range of airflow 21a radially inward from the apex Pt of the protruding portion 17. Therefore, it is possible to control the blowing air direction as desired.
- the radially outer skirt portion 17b is limitedly arranged in a local range in view of the relationship with the radially inner skirt portion 17a. For this reason, the airflow 21b on the radially outer side can be made to flow to reach the rear edge without giving an effect of flowing to the outer peripheral edge 11 side as much as possible, and also toward the outer peripheral edge 11. It is possible to suppress the drift.
- the flow of the suction surface is deviated outwardly in the radial direction only by the form of the suction surface in which the protrusion 17 is provided on the suction surface 15 independently of the shape of the outer peripheral edge of the blade. Can be suppressed. If the thickness of the blade is closer to the outer peripheral edge as shown in FIG. 6 while maintaining the wall thickness without providing the protrusion, the blade is warped upstream so that a force on the inner side in the radial direction is applied to the entire suction surface. The inclination of the pressure surface also becomes an inclination 23 inclined upstream from the boss toward the outer periphery, and there is a problem that the flow leaking from the pressure surface to the suction surface increases at the outer peripheral edge.
- the propeller fan according to the first embodiment it is possible to reduce the deviation of the flow to the outside in the radial direction of the entire suction surface of the blade, and the blowout from the trailing edge
- the flow can be made uniform in the radial direction. Therefore, it is possible to reduce the occurrence of a local high-speed region, and as a result, it is possible to realize low noise and high efficiency.
- FIG. 7 is a plan view of the propeller fan according to the second embodiment.
- FIGS. 8A, 8B, and 8C are cross-sectional views taken along lines VIIIa, VIIIb, and VIIIc of FIG. 7, respectively. It is.
- the propeller fan 201 has blades 205 that increase in height H from the front to the rear in the rotation direction RD (from the upstream side to the downstream side). That is, for the three cross sections illustrated in FIG. 8, the height H1 ⁇ H2 ⁇ H3.
- the inclination of the direction in which the outer peripheral edge 11 is located on the downstream side in the flow direction FD increases from the front to the rear in the rotation direction RD. That is, with respect to the three cross-sections illustrated in FIG. 8, the inclination of the direction in which the outer peripheral edge 11 is located on the downstream side in the flow direction FD is large in the order of the reference lines RL3, RL2, and RL1.
- the propeller fan according to the second embodiment configured as described above can obtain the following advantages in addition to the same advantages as those of the first embodiment.
- the differential pressure on both sides of the blade increases toward the trailing edge, leakage vortices generated in the vicinity of the outer peripheral edge 11 become stronger toward the trailing edge. Therefore, the airflow passing through the blade surface is also easily sucked outward in the radial direction toward the rear edge. Therefore, the height of the protruding portion increases from the front to the rear in the rotational direction RD, so that the airflow flowing on the rear edge side on the suction surface is particularly difficult to be sucked to the outer peripheral edge side, and the radial flow is efficiently performed. Can be suppressed.
- the start point S of the protrusion is set to be 1/2 or earlier of the chord from the leading edge to the trailing edge (part closer to the leading edge than the trailing edge) with reference to the flow on the blade surface by the airflow analysis. Is more effective.
- FIG. 9 is a plan view of the propeller fan according to the third embodiment.
- 10A, 10B, and 10C are cross-sectional views taken along lines Xa, Xb, and Xc in FIG. 9, respectively.
- the protrusion 317 of the wing 305 in the propeller fan 301 according to the third embodiment disappears without reaching the trailing edge 9. That is, the rear edge 9 does not have the protruding portion 317 (the protruding portion non-forming portion 315a exists on the rear edge 9 side of the suction surface).
- the height H is from the front to the rear in the rotational direction RD. A portion that becomes smaller (from upstream to downstream) may be provided in a portion near the rear edge of the protruding portion 317.
- the heights H4> H5 are satisfied for the two illustrated cross sections of FIG.
- the propeller fan according to the third embodiment configured as described above can obtain the following advantages in addition to the same advantages as those of the first embodiment.
- the trailing edge becomes thick, so that there is a possibility that a trailing flow will occur in the trailing edge blowing flow.
- no protrusion is formed on the trailing edge, and accordingly, an increase in the thickness in the vicinity of the trailing edge is avoided, and the possibility that a wake will occur is further reduced. This also makes it possible to further suppress the uneven flow.
- the third embodiment may be implemented in combination with the second embodiment described above. That is, in a wing having a protruding portion whose height increases from the front to the rear in the rotation direction, a protruding portion non-forming portion may be provided on the trailing edge side of the suction surface.
- FIG. 11 is a plan view of a propeller fan according to the fourth embodiment.
- 12A, 12B, and 12C are cross-sectional views taken along lines XIIa, XIIb, and XIIc in FIG. 11, respectively.
- FIG. 13 shows a propeller fan according to the fourth embodiment.
- FIG. 12C shows a cross section of FIG. 12C (cross section taken along line XIIc in FIG. 11) and a portion on the front side in the rotational direction of the cross section.
- FIG. 12C shows a cross section of FIG. 12C (cross section taken along line XIIc in FIG. 11) and a portion on the front side in the rotational direction of the cross section.
- the apex Pt of the protrusion 417 of the blade 405 is located closer to the boss 3 in the forward direction in the rotational direction RD, as shown in FIGS. (It is formed so as to be located inside in the radial direction). That is, with respect to the three cross sections illustrated in FIG. 12, the radius R7 ⁇ R8 ⁇ R9 indicating the radial position of the apex Pt of the protrusion 417 is satisfied. Moreover, although it is only an example, the inclination of the reference line is large from the front to the rear in the rotation direction RD so that the outer peripheral edge is located on the downstream side in the flow direction FD.
- the propeller fan according to the fourth embodiment configured as described above can obtain the following advantages in addition to the same advantages as those of the first embodiment. That is, on the downstream side (rear edge side) where the pressure increase value by the propeller fan increases, the differential pressure between the pressure surface and the suction surface of the blade also increases, so the leakage vortex generated at the outer peripheral edge becomes stronger, and the suction force by the leakage vortex Will increase. For this reason, there exists a tendency for airflow to go to radial direction outside in the wide range of a wing
- the downstream side on the blade surface (the rear edge side) has a wide area that tends to flow outward in the radial direction due to the presence of the protruding portion on the radially outer side.
- a deterrent force directed inward in the radial direction can be applied to the airflow, and the blowout flow can be made uniform in the radial direction by this action.
- Embodiment 5 a propeller fan according to Embodiment 5 of the present invention will be described.
- the fifth embodiment is shown in the drawings showing the above-described embodiments.
- the protrusions including the apexes and the skirts on both sides are curved surfaces. It is configured.
- the following advantages can also be obtained.
- the fifth embodiment when the airflow flows over the protruding portion, it is not necessary to generate a large separation at the protruding portion, and the loss can be prevented from increasing.
- FIG. 14 is a perspective view of the outdoor unit (blower) according to the sixth embodiment when viewed from the outlet side
- FIG. 15 is a diagram for explaining the configuration of the outdoor unit from the upper surface side.
- FIG. 16 shows a state where the fan grill is removed
- FIG. 17 is a diagram showing the internal configuration by further removing the front panel and the like.
- the outdoor unit body (casing) 51 is configured as a housing having a pair of left and right side surfaces 51a and 51c, a front surface 51b, a back surface 51d, an upper surface 51e, and a bottom surface 51f.
- the side surface 51a and the back surface 51d have an opening for sucking air from the outside (see arrow A in FIG. 15).
- the blower outlet 53 as an opening part for blowing air outside (refer arrow A of FIG. 15) is formed in the front panel 52.
- the blower outlet 53 is covered with a fan grille 54, thereby preventing contact between an object or the like and the propeller fan 1 for safety.
- the propeller fan 1 is installed in the outdoor unit main body 51.
- the propeller fan 1 is the propeller fan according to any one of the first to fifth embodiments described above.
- the propeller fan 1 is connected to a fan motor (drive source) 61 on the back surface 51 d side via a rotary shaft 62, and is driven to rotate by the fan motor 61.
- the interior of the outdoor unit main body 51 is divided into a blower chamber 56 in which the propeller fan 1 is housed and installed, and a machine room 57 in which the compressor 64 and the like are installed, by a partition plate (wall body) 51g. .
- a heat exchanger 68 is provided so as to extend in a substantially L shape in plan view.
- a bell mouth 63 is disposed on the outer side in the radial direction of the propeller fan 1 disposed in the blower chamber 56.
- the bell mouth 63 is located outside the outer peripheral end of the blade 5 and has an annular shape along the rotation direction of the propeller fan 1.
- a partition plate 51g is located on one side of the bell mouth 63 (right side in FIG. 15), and on the other side (opposite direction) (left side in FIG. 15). A part of the heat exchanger 68 is located.
- the front end of the bell mouth 63 is connected to the front panel 52 of the outdoor unit so as to surround the outer periphery of the outlet 53.
- the bell mouth 63 may be configured integrally with the front panel 52 or may be prepared as a separate body.
- a flow path between the suction side and the blow-out side of the bell mouth 63 is configured as an air path near the blow-out port 53. That is, the air passage near the blowout port 53 is separated from the other space in the blower chamber 56 by the bell mouth 63.
- the heat exchanger 68 provided on the suction side of the propeller fan 1 includes a plurality of fins arranged side by side so that the plate-like surfaces are parallel to each other, and a heat transfer tube penetrating each fin in the direction of arrangement. I have.
- a refrigerant circulating through the refrigerant circuit flows in the heat transfer tube.
- the heat transfer tube extends in an L shape over the side surface 51a and the back surface 51d of the outdoor unit main body 51, and a plurality of heat transfer tubes meander while passing through the fins as shown in FIG. Configured to do.
- the heat exchanger 68 is connected to the compressor 64 via a pipe 65 and the like, and is further connected to an indoor heat exchanger, an expansion valve and the like (not shown) to constitute a refrigerant circuit of the air conditioner.
- a substrate box 66 is disposed in the machine room 57, and devices mounted in the outdoor unit are controlled by a control board 67 provided in the substrate box 66.
- the same advantages as the corresponding first to fifth embodiments can be obtained.
- the propeller fan of Embodiments 1 to 5 above in the blower the amount of blown air can be increased with high efficiency, and the air that is a refrigeration cycle apparatus composed of a compressor and a heat exchanger, etc.
- the outdoor unit of a harmony machine or the outdoor unit of a water heater it is possible to increase the amount of air passing through the heat exchanger with low noise and high efficiency, thereby realizing low noise and energy saving of the equipment.
- this Embodiment 6 demonstrated the outdoor unit of the air conditioning apparatus as an example of the outdoor unit including a blower, this invention is not limited to this, For example, implement as outdoor units, such as a water heater. Further, it can be widely applied as a device for blowing air, and can also be applied to devices and facilities other than outdoor units.
- the protrusions are all formed in the same manner on each of the blades, the present invention is not limited to this, and may be selectively formed on a plurality of blades constituting the propeller fan.
- the projecting portions are not shown for the sake of clarity.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
前記突出部の高さは、回転方向の前方から後方にいくほど大きくなる、ようにしてもよい。また、前記翼における前記負圧面の後縁側には、突出部非形成部が存在する、ようにしてもよい。前記突出部の頂点は、回転方向RDの前方側ほど、前記ボスに近づくように位置する、ようにしてもよい。前記突出部が、曲面で構成されている、ようにしてもよい。
さらに、同目的を達成するための本発明に係る送風装置は、上述した本発明に係るプロペラファンと、前記プロペラファンに駆動力を付与する駆動源と、前記プロペラファン及び前記駆動源を収容するケーシングとを備える。
さらに、同目的を達成するための本発明に係る室外機は、上述した本発明に係るプロペラファンと、前記プロペラファンに駆動力を付与する駆動源と、前記プロペラファン、前記駆動源及び前記熱交換器を収容するケーシングとを備える。
図1は、本実施の形態1に係るプロペラファンの概略を示す斜視図である。符号RDの矢印は、プロペラファン1の回転方向RDを示しており、符号FDの矢印は、送風時の気流の流れ方向FDを示している。
次に、図7及び図8に基づき、本発明の実施の形態2に係るプロペラファンについて説明する。なお、本実施の形態2は、以下に特に説明する部分を除いては、上記実施の形態1と同様であるものとする。図7は、本実施の形態2に係るプロペラファンの平面図であり、図8の(a)、(b)及び(c)はそれぞれ、図7のVIIIa線、VIIIb線、VIIIc線による断面図である。
次に、図9及び図10に基づき、本発明の実施の形態3に係るプロペラファンについて説明する。なお、本実施の形態3は、以下に特に説明する部分を除いては、上記実施の形態1と同様であるものとする。図9は、本実施の形態3に係るプロペラファンの平面図である。図10の(a)、(b)及び(c)はそれぞれ、図9のXa線、Xb線、Xc線による断面図である。
次に、図11~図13に基づき、本発明の実施の形態4に係るプロペラファンについて説明する。なお、本実施の形態4は、以下に特に説明する部分を除いては、上記実施の形態1と同様であるものとする。図11は、本実施の形態4に係るプロペラファンの平面図である。図12の(a)、(b)及び(c)はそれぞれ、図11のXIIa線、XIIb線、XIIc線による断面図である。また、図13は、本実施の形態4に係るプロペラファンに関し、一つの翼についての図12の(c)の断面(図11のXIIc線による断面)とその断面よりも回転方向前方側の部分とを示す斜視図である。
次に、本発明の実施の形態5に係るプロペラファンについて説明する。なお、本実施の形態5は、既に説明した実施の形態を示す図面に表れているが、上記実施の形態1~4の何れかに関し、頂点及び両側の裾野部を含む突出部が、曲面で構成されていることを特徴とする。これにより、対応する上記実施の形態1~4の利点に加え、次のような利点も得られる。翼面を通過する気流の一部には、突出部を乗り越える可能性がある。これに関し、本実施の形態5によれば、気流が突出部を乗り越えて流れる際、突出部で大きなはく離を発生させずに済み、損失を大きくしないようにすることができる。
次に、本発明の実施の形態6に係る室外機(送風装置)について説明する。図14は、本実施の形態6に係る室外機(送風装置)を吹出口側から見たときの斜視図であり、図15は、上面側から室外機の構成を説明するための図である。また、図16は、ファングリルを外した状態を示し、図17は、さらに、前面パネル等を除去して、内部構成を示す図である。
Claims (7)
- ボスと、前記ボスの外周に設けられた複数の翼とを備えたプロペラファンであって、
少なくとも一つの前記翼における負圧面には、突出部が設けられており、
前記突出部は、前記翼の外周縁から離れた位置において回転方向に延びており、
前記突出部の径方向内側裾野部の傾きは、該突出部の径方向外側裾野部の傾きよりも緩やかである、
プロペラファン。 - 前記突出部の高さは、回転方向の前方から後方にいくほど大きくなる、
請求項1のプロペラファン。 - 前記翼における前記負圧面の後縁側には、突出部非形成部が存在する、
請求項1又は2のプロペラファン。 - 前記突出部の頂点は、回転方向RDの前方側ほど、前記ボスに近づくように位置する、
請求項1~3の何れか一項のプロペラファン。 - 前記突出部が、曲面で構成されている、
請求項1~4の何れか一項のプロペラファン。 - 請求項1乃至5の何れか一項のプロペラファンと、
前記プロペラファンに駆動力を付与する駆動源と、
前記プロペラファン及び前記駆動源を収容するケーシングと
を備えた送風装置。 - 熱交換器と、
請求項1乃至5の何れか一項のプロペラファンと、
前記プロペラファンに駆動力を付与する駆動源と、
前記プロペラファン、前記駆動源及び前記熱交換器を収容するケーシングと
を備えた室外機。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14840958.4A EP3043077B1 (en) | 2013-09-02 | 2014-08-27 | Propeller fan, air-blowing device, and outdoor unit |
JP2015525665A JP6095025B2 (ja) | 2013-09-02 | 2014-08-27 | プロペラファン、送風装置及び室外機 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2013/073505 WO2015029245A1 (ja) | 2013-09-02 | 2013-09-02 | プロペラファン、送風装置及び室外機 |
JPPCT/JP2013/073505 | 2013-09-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015030048A1 true WO2015030048A1 (ja) | 2015-03-05 |
Family
ID=52585852
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/073505 WO2015029245A1 (ja) | 2013-09-02 | 2013-09-02 | プロペラファン、送風装置及び室外機 |
PCT/JP2014/072416 WO2015030048A1 (ja) | 2013-09-02 | 2014-08-27 | プロペラファン、送風装置及び室外機 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/073505 WO2015029245A1 (ja) | 2013-09-02 | 2013-09-02 | プロペラファン、送風装置及び室外機 |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3043077B1 (ja) |
JP (1) | JP6095025B2 (ja) |
WO (2) | WO2015029245A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018053822A (ja) * | 2016-09-29 | 2018-04-05 | 山洋電気株式会社 | リバーシブルフローファン |
CN107923410A (zh) * | 2015-09-08 | 2018-04-17 | 三菱电机株式会社 | 螺旋桨式风扇、螺旋桨式风扇装置及空气调节装置用室外机 |
CN114084327A (zh) * | 2021-11-26 | 2022-02-25 | 大连海事大学 | 一种船用螺旋桨桨叶结构 |
WO2024009490A1 (ja) * | 2022-07-08 | 2024-01-11 | 三菱電機株式会社 | 軸流ファン、送風機、及び、空気調和機 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105257596B (zh) * | 2015-09-28 | 2016-06-15 | 北京图正实验室科技有限公司 | 鸟翅型高压轴流风机叶片及其对旋轴流风机 |
JP6428833B2 (ja) | 2017-04-14 | 2018-11-28 | ダイキン工業株式会社 | プロペラファン |
CN115596707B (zh) * | 2022-12-15 | 2023-03-17 | 佛山市南海九洲普惠风机有限公司 | 一种带涡流发生器的轴流式叶轮 |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52115905U (ja) * | 1976-02-27 | 1977-09-02 | ||
JPS56150895U (ja) * | 1980-04-14 | 1981-11-12 | ||
JPS62233497A (ja) * | 1986-03-28 | 1987-10-13 | ゴ−ルド スタ− カンパニ−,リミテイド | 扇風機のプロペラ |
JPS62284999A (ja) * | 1986-06-02 | 1987-12-10 | Mitsuba Electric Mfg Co Ltd | 前進フアンの整流リブ構造 |
JPH0777198A (ja) * | 1993-09-10 | 1995-03-20 | Toshiba Ave Corp | 軸流ファンのブレード |
JPH08177792A (ja) * | 1994-10-25 | 1996-07-12 | Matsushita Seiko Co Ltd | 軸流ファン |
JPH1082398A (ja) * | 1996-09-09 | 1998-03-31 | Mitsubishi Electric Corp | 軸流送風機 |
JP2000110789A (ja) * | 1998-09-30 | 2000-04-18 | Toshiba Kyaria Kk | 軸流送風機 |
JP2000192898A (ja) | 1998-12-25 | 2000-07-11 | Sharp Corp | プロペラファン |
JP2005076501A (ja) | 2003-08-29 | 2005-03-24 | Matsushita Electric Ind Co Ltd | 送風機羽根車 |
JP2005248769A (ja) * | 2004-03-03 | 2005-09-15 | Matsushita Electric Ind Co Ltd | 送風機 |
JP2007040201A (ja) * | 2005-08-03 | 2007-02-15 | Mitsubishi Heavy Ind Ltd | プロペラファン |
JP2009522490A (ja) * | 2005-12-29 | 2009-06-11 | ミネベア株式会社 | 一体のハウジング及びインペラを有する冷却ファン |
JP2009257260A (ja) | 2008-04-18 | 2009-11-05 | Mitsubishi Heavy Ind Ltd | プロペラファン |
JP2011179330A (ja) | 2010-02-26 | 2011-09-15 | Panasonic Corp | 羽根車と送風機及びそれを用いた空気調和機 |
JP2013019335A (ja) | 2011-07-12 | 2013-01-31 | Mitsuba Corp | 冷却ファン |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4128363A (en) * | 1975-04-30 | 1978-12-05 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Axial flow fan |
JPS59105998A (ja) * | 1982-12-08 | 1984-06-19 | Nippon Denso Co Ltd | 軸流フアン |
JP3738155B2 (ja) * | 1999-07-21 | 2006-01-25 | 三洋電機株式会社 | 軸流送風機 |
JP4321690B2 (ja) * | 1999-09-21 | 2009-08-26 | 東芝キヤリア株式会社 | 軸流送風機 |
JP2006214371A (ja) * | 2005-02-04 | 2006-08-17 | Matsushita Electric Ind Co Ltd | 送風機 |
-
2013
- 2013-09-02 WO PCT/JP2013/073505 patent/WO2015029245A1/ja active Application Filing
-
2014
- 2014-08-27 JP JP2015525665A patent/JP6095025B2/ja active Active
- 2014-08-27 EP EP14840958.4A patent/EP3043077B1/en active Active
- 2014-08-27 WO PCT/JP2014/072416 patent/WO2015030048A1/ja active Application Filing
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52115905U (ja) * | 1976-02-27 | 1977-09-02 | ||
JPS56150895U (ja) * | 1980-04-14 | 1981-11-12 | ||
JPS62233497A (ja) * | 1986-03-28 | 1987-10-13 | ゴ−ルド スタ− カンパニ−,リミテイド | 扇風機のプロペラ |
JPS62284999A (ja) * | 1986-06-02 | 1987-12-10 | Mitsuba Electric Mfg Co Ltd | 前進フアンの整流リブ構造 |
JPH0777198A (ja) * | 1993-09-10 | 1995-03-20 | Toshiba Ave Corp | 軸流ファンのブレード |
JPH08177792A (ja) * | 1994-10-25 | 1996-07-12 | Matsushita Seiko Co Ltd | 軸流ファン |
JPH1082398A (ja) * | 1996-09-09 | 1998-03-31 | Mitsubishi Electric Corp | 軸流送風機 |
JP2000110789A (ja) * | 1998-09-30 | 2000-04-18 | Toshiba Kyaria Kk | 軸流送風機 |
JP2000192898A (ja) | 1998-12-25 | 2000-07-11 | Sharp Corp | プロペラファン |
JP2005076501A (ja) | 2003-08-29 | 2005-03-24 | Matsushita Electric Ind Co Ltd | 送風機羽根車 |
JP2005248769A (ja) * | 2004-03-03 | 2005-09-15 | Matsushita Electric Ind Co Ltd | 送風機 |
JP2007040201A (ja) * | 2005-08-03 | 2007-02-15 | Mitsubishi Heavy Ind Ltd | プロペラファン |
JP2009522490A (ja) * | 2005-12-29 | 2009-06-11 | ミネベア株式会社 | 一体のハウジング及びインペラを有する冷却ファン |
JP2009257260A (ja) | 2008-04-18 | 2009-11-05 | Mitsubishi Heavy Ind Ltd | プロペラファン |
JP2011179330A (ja) | 2010-02-26 | 2011-09-15 | Panasonic Corp | 羽根車と送風機及びそれを用いた空気調和機 |
JP2013019335A (ja) | 2011-07-12 | 2013-01-31 | Mitsuba Corp | 冷却ファン |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107923410A (zh) * | 2015-09-08 | 2018-04-17 | 三菱电机株式会社 | 螺旋桨式风扇、螺旋桨式风扇装置及空气调节装置用室外机 |
EP3348842A4 (en) * | 2015-09-08 | 2018-09-12 | Mitsubishi Electric Corporation | Propeller fan, propeller fan device and outdoor unit for air conditioning device |
US10634161B2 (en) | 2015-09-08 | 2020-04-28 | Mitsubishi Electric Corporation | Propeller fan, propeller fan device, and air conditioner outdoor unit |
CN107923410B (zh) * | 2015-09-08 | 2021-12-07 | 三菱电机株式会社 | 螺旋桨式风扇、螺旋桨式风扇装置及空气调节装置用室外机 |
JP2018053822A (ja) * | 2016-09-29 | 2018-04-05 | 山洋電気株式会社 | リバーシブルフローファン |
US10662973B2 (en) | 2016-09-29 | 2020-05-26 | Sanyo Denki Co., Ltd. | Reversible flow fan |
CN114084327A (zh) * | 2021-11-26 | 2022-02-25 | 大连海事大学 | 一种船用螺旋桨桨叶结构 |
WO2024009490A1 (ja) * | 2022-07-08 | 2024-01-11 | 三菱電機株式会社 | 軸流ファン、送風機、及び、空気調和機 |
Also Published As
Publication number | Publication date |
---|---|
EP3043077B1 (en) | 2019-11-27 |
JP6095025B2 (ja) | 2017-03-15 |
WO2015029245A1 (ja) | 2015-03-05 |
EP3043077A4 (en) | 2017-04-19 |
JPWO2015030048A1 (ja) | 2017-03-02 |
EP3043077A1 (en) | 2016-07-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6095025B2 (ja) | プロペラファン、送風装置及び室外機 | |
WO2014061094A1 (ja) | ターボファンおよび空気調和機 | |
JP5971667B2 (ja) | プロペラファン、送風装置及び室外機 | |
JP4396775B2 (ja) | 遠心ファン | |
JP6463548B2 (ja) | 軸流送風機および室外機 | |
JP2007100548A (ja) | 遠心ファン及びこれを用いた空気調和機 | |
WO2009130954A1 (ja) | 送風機およびこの送風機を用いたヒートポンプ装置 | |
JP2008002379A (ja) | 遠心ファン | |
JP5933759B2 (ja) | プロペラファン、送風装置、室外機 | |
JP2013164218A (ja) | 室内機 | |
JP2008223741A (ja) | 遠心送風機 | |
JP5418538B2 (ja) | 送風機 | |
JP6405529B2 (ja) | 送風装置 | |
JP2007205268A (ja) | 遠心ファン | |
JP6695509B1 (ja) | 遠心ファン及び空気調和機 | |
JP6739656B2 (ja) | 羽根車、送風機、及び空気調和装置 | |
JP6811866B2 (ja) | プロペラファン、送風装置、及び冷凍サイクル装置 | |
JP5984162B2 (ja) | プロペラファン、送風装置、および室外機 | |
JP2009174541A (ja) | 遠心ファン | |
JP7529708B2 (ja) | プロペラファンおよび冷凍装置 | |
JP2011099409A (ja) | 送風機及びヒートポンプ装置 | |
JP2016003641A (ja) | 遠心ファン | |
JP2009127541A (ja) | 遠心ファン | |
JP2017145738A (ja) | 送風装置 | |
JP6692456B2 (ja) | プロペラファン及び空気調和装置の室外機 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14840958 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2015525665 Country of ref document: JP Kind code of ref document: A |
|
REEP | Request for entry into the european phase |
Ref document number: 2014840958 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2014840958 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |