EP3779207B1 - Axialstromschaufel und gebläse - Google Patents

Axialstromschaufel und gebläse Download PDF

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Publication number
EP3779207B1
EP3779207B1 EP18912353.2A EP18912353A EP3779207B1 EP 3779207 B1 EP3779207 B1 EP 3779207B1 EP 18912353 A EP18912353 A EP 18912353A EP 3779207 B1 EP3779207 B1 EP 3779207B1
Authority
EP
European Patent Office
Prior art keywords
hub
partition plate
boss
electric motor
axial flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18912353.2A
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English (en)
French (fr)
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EP3779207A1 (de
EP3779207A4 (de
Inventor
Yuichi Yasuda
Akifumi Fujita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP3779207A1 publication Critical patent/EP3779207A1/de
Publication of EP3779207A4 publication Critical patent/EP3779207A4/de
Application granted granted Critical
Publication of EP3779207B1 publication Critical patent/EP3779207B1/de
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Anticipated expiration legal-status Critical

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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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • 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
    • 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
    • F04D29/663—Sound attenuation
    • F04D29/665—Sound attenuation by means of resonance chambers or interference
    • 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
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/12—Kind or type gaseous, i.e. compressible
    • 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
    • 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
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • F05D2260/963—Preventing, counteracting or reducing vibration or noise by Helmholtz resonators

Definitions

  • the present invention relates to an axial flow blade and a blower that includes the axial flow blade.
  • the blower that is installed in a location such as an office or a living room and that rotates a blade by an electric motor to blow air.
  • the blower has a structure in which the central portion of the blade, connecting the electric motor and the blade with each other, is constituted by a boss through which a shaft of the electric motor extends, and a hub having a cylindrical shape with its one end open and having vanes located on the hub.
  • a space is formed by being surrounded by the hub and a face of the electric motor located closer to the blade.
  • Document JP S55 30963 U discloses an electric cooling fan device in which a fan is coupled to an output shaft of an electric motor.
  • an impeller for an axial fan comprises a hub, a plurality of blades extending radially outwardly from the hub, and a plurality of blades extending axially rearwardly from the hub.
  • the rearwardly extending blades preferably extend backwards from the radially outer portion of the hub, and also extend partially into the hub.
  • the axially extending fins ideally protrude 5mm rearwardly of the hub.
  • a lip may be provided outside the hub at the rear so as to redirect axially flowing air radially outwards.
  • the impeller belongs to an axial extractor fan assembly comprising a motor to drive the impeller.
  • An independent claim relates to an impeller having a lip formed on the outside of the hub at the rear, and a plurality of blades located radially inwardly of the lip.
  • Document EP 2 381 112 A2 states an axial fan having a hub for connecting the axial fan with an electric drive motor, where the hub is designed in a cup-shaped manner.
  • a front area is interrupted to achieve a torsionally-smooth and bendable connection for multiple protrusions.
  • Web-like connecting elements are located between each adjacent protrusions.
  • Document JP 2006 307666 A states that a fan device has a rotary vane via a cylindrical hub member arranged on a rotary shaft of a torque generator so as to surround the torque generator.
  • a cylindrical division member is arranged inside the hub member for partitioning and forming an annular hollow part, and an opening part is formed in the division member.
  • Document JP H04 265500 A states a blower consisting of a hub for receiving power from the outside, multiple vanes disposed on the outer peripheral part of the hub, and an outer peripheral frame body provided with a circular space chamber which is disposed on the outer peripheral part of the vanes and whose sectional shape is made into a split circle.
  • a blower consisting of a hub for receiving power from the outside, multiple vanes disposed on the outer peripheral part of the hub, and an outer peripheral frame body provided with a circular space chamber which is disposed on the outer peripheral part of the vanes and whose sectional shape is made into a split circle.
  • On the blow-off side of the orifice which is formed on the circular arc side of the outer peripheral frame body multiple opening parts communicating with the inside of the circular space chamber are formed in a peripheral direction, and a wavelength resonator is disposed in the orifice.
  • a resonance phenomenon such as air column resonance or Helmholtz resonance occurs in the space surrounded by the electric motor and the hub of the blade at a frequency determined by the dimensions of the space.
  • the resonance frequency matches the frequency of bearing sound or the like of the electric motor, the sound is amplified to become operating noise.
  • the dimensions of the space may not be simply changed in view of the possible influence on the required performance.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide a blower that can easily prevent an increase in the level of operating noise even when the blower has a structure in which a space is formed by being surrounded by a hub and a face of an electric motor located closer to a blade.
  • an axial flow blade comprising: a boss through which a shaft of an electric motor extends, the electric motor rotating the shaft about a rotational axis; a hub having a cylindrical shape opened on a side closer to the electric motor, the hub being coaxial with the boss and surrounding a periphery of the boss; and a partition plate installed in the hub to partition a space in the hub into two or more spaces, wherein a gap is formed between an inner diameter of the hub and an outer circumference of the partition plate, the gap connecting the two or more partitioned spaces.
  • an axial flow blade comprising: a boss through which a shaft of an electric motor extends, the electric motor rotating the shaft about a rotational axis; a hub having a cylindrical shape opened on a side closer to the electric motor, the hub being coaxial with the boss and surrounding a periphery of the boss; and a partition plate installed in the hub to partition a space in the hub into two or more spaces, wherein a gap is formed between an outer diameter of the boss and a hole of the partition plate, the gap connecting the two or more partitioned spaces.
  • the blower according to the present invention has an effect where it is possible to easily prevent an increase in the level of operating noise even when the blower has a structure in which a space is formed by being surrounded by a hub and a face of an electric motor located closer to a blade.
  • FIG. 1 is a perspective view of a circulator fan that is a blower using an axial flow blade according to a first embodiment of the present invention.
  • FIG. 2 is a side sectional view of the circulator fan according to the first embodiment.
  • a circulator fan 1 that is a blower includes: a stand 2 for floor installation; and a body frame 3 held by the stand 2 in such a manner that the body frame 3 is vertically pivotable.
  • an electric motor 100 and an electric unit 4 are mounted in the body frame 3, an electric motor 100 and an electric unit 4 are mounted.
  • the electric unit 4 adjusts a voltage to be applied to the electric motor 100 and thereby changes the drive speed.
  • An external power supply is provided to the electric unit 4 through a power cord 5.
  • An axial flow blade 200 is attached to a shaft 101 of the electric motor 100. When the electric motor 100 is driven, the axial flow blade 200 rotates so that the circulator fan 1 blows air forward.
  • FIG. 3 is an enlarged partial cross-sectional view illustrating the axial flow blade of the circulator fan according to the first embodiment.
  • FIG. 3 illustrates the side of the electric motor 100, while illustrating the cross-section of the axial flow blade 200.
  • FIG. 4 is an exploded perspective view illustrating an attachment structure of the electric motor and the blade of the circulator fan according to the first embodiment.
  • a central portion 201 of the axial flow blade 200 is constituted by a boss 202 and a hub 205.
  • a boss hole 203 is formed into which the shaft 101 of the electric motor 100 is fitted.
  • a vane 204 is located on the hub 205.
  • the hub 205 has a cylindrical shape with its one end open.
  • the center axis of the hub 205 is coaxial with the center axis of the boss 202.
  • an open end 206 of the hub 205 faces toward the electric motor 100.
  • An end face 207 of the boss 202 is located in the hub 205 more inward from the open end 206.
  • the shaft 101 of the electric motor 100 is provided with a groove 104 between a tip end portion 102 and an electric motor frame 103.
  • a C-ring 105 is engaged with the groove 104.
  • a D-cut shaped screw portion 107 is formed.
  • the shaft 101 is inserted through the boss hole 203, and thereafter a cap nut 108 is tightened onto the screw portion 107, so that the axial flow blade 200 is fixed to the shaft 101.
  • a drive transmission plate 300 is interposed between the axial flow blade 200 and the cap nut 108.
  • a resin washer 106 serving as an abutting portion and a partition plate 400 are interposed between the boss 202 and the C-ring 105 and fixed between them.
  • the drive transmission plate 300 is formed with a hole 302 at the center of a plate surface 301.
  • the hole 302 has a shape identical to the D-shape of the tip end portion 102 of the shaft 101.
  • clicks 305 and 306 are provided respectively and are positioned perpendicular to the plate surface 301.
  • the hole 302 is engaged with the D-shaped screw portion 107, and the clicks 305 and 306 are engaged respectively with insertion holes 209 and 208 provided on a front surface 205a of the hub 205, so that rotation of the shaft 101 is transmitted to the axial flow blade 200.
  • the partition plate 400 is formed with a hole 402 at the center of a plate surface 401.
  • the hole 402 has a diameter equal to the diameter of the shaft 101.
  • the partition plate 400 has an outer diameter smaller than the inner diameter of the hub 205.
  • FIG. 5 is an enlarged side sectional view illustrating an interior of the hub of the circulator fan according to the first embodiment.
  • the partition plate 400 When the partition plate 400 along with the axial flow blade 200 are assembled to the electric motor 100: the partition plate 400 is located in the hub 205 and partitions, a space 500 formed between the hub 205 and the electric motor 100 as illustrated in FIG. 3 , into a space 501 and a space 502.
  • the partition plate 400 partitions the space 500 into the space 501 and the space 502. This causes resonance in the space 502 located closer to the electric motor 100 relative to the partition plate 400.
  • the dimension of the space where resonance occurs in the rotational-axis direction of the axial flow blade 200 is changed: from "A+B" that is the sum of a dimension A between the partition plate 400 and the front surface 205a of the hub 205 and a dimension B between the partition plate 400 and the electric motor frame 103; to the dimension B between the partition plate 400 and the electric motor frame 103.
  • the volume of the space where resonance occurs is changed: from "V1+V2" that is the sum of a volume V1 of the space 501 between the partition plate 400 and the front surface 205a of the hub 205 and a volume V2 of the space 502 between the partition plate 400 and the electric motor frame 103; to the volume V2 of the space 502 between the partition plate 400 and the electric motor frame 103.
  • resonance occurs in the space 500 in its entirety with the volume "V1+V2". Accordingly, in the case where there is not the partition plate 400, the frequency of sound to be amplified in the space 500 is different from the frequency of sound to be amplified when resonance occurs in the space 502.
  • the frequency of air column resonance and Helmholtz resonance is changed by installing the partition plate 400. Because there is a gap between the inner diameter of the hub 205 and an outer circumference 403 of the partition plate 400, Helmholtz resonance also occurs in the space 501. An effect of muffling the resonance is thus obtained. It is allowable that in the space 501, the hub 205 is provided with a rib extending parallel to the rotational axis so as to form two or more spaces when the partition plate 400 is attached. That is, the partition plate 400 is installed to change the volume of the space where resonance occurs between the partition plate 400 and the electric motor 100. Thus, the sound that might have been amplified when there is not the partition plate 400 can be prevented from being amplified after the installation of the partition plate 400.
  • the circulator fan 1 can prevent operating noise from being amplified without changing the shape of the axial flow blade 200. Therefore, the circulator fan 1, having a structure in which the space 500 is formed by being surrounded by the hub 205 and the face of the electric motor 100 located closer to the axial flow blade 200, can easily prevent an increase in the level of operating noise caused by resonance.
  • FIG. 6 is an enlarged side sectional view illustrating an interior of a hub of a circulator fan according to a second embodiment of the present invention.
  • the hub 205 of the axial flow blade 200 in the circulator fan 1 according to the second embodiment is formed with engagement portions 210, 211, 212, and 213 protruding inward from the innerdiameter side.
  • the partition plate 400 is fixed to the axial flow blade 200 by being fitted at the outer circumference 403 between the engagement portions 210 and 212 and between the engagement portions 211 and 213.
  • the partition plate 400 can be fitted in a state of being elastically deformed and warped between the engagement portions 211 and 213, it is also allowable to use another fitting method.
  • the diameter of the hole 402 of the partition plate 400 is larger than an outer diameter of the boss 202, and thus a gap is provided between the boss 202 and the hole 402 of the partition plate 400.
  • Other constituent elements are identical to those according to the first embodiment.
  • the partition plate 400 is installed in the hub 205 and partitions the space 500 formed between the hub 205 and the electric motor 100 into a space 503 and a space 504. As the partition plate 400 partitions the space 500 into the space 503 and the space 504, the resonance is generated in the space 504 located closer to the electric motor 100 relative to the partition plate 400.
  • the dimension of the space where resonance occurs in the rotational-axis direction of the axial flow blade 200 is changed: from "C+D" that is the sum of a dimension C between the partition plate 400 and the front surface 205a of the hub 205 and a dimension D between the partition plate 400 and the electric motor frame 103; to the dimension D between the partition plate 400 and the electric motor frame 103.
  • the volume of the space where resonance occurs is changed: from "V3+V4" that is the sum of a volume V3 of the space 503 between the partition plate 400 and the front surface 205a of the hub 205 and a volume V4 of the space 504 between the partition plate 400 and the electric motor frame 103; to the volume V4 of the space 504 between the partition plate 400 and the electric motor frame 103. Therefore, the frequency of air column resonance and Helmholtz resonance is changed by installing the partition plate 400. Because there is a gap between the outer diameter of the boss 202 and the hole 402 of the partition plate 400, Helmholtz resonance also occurs in the space 503. An effect of muffling the resonance is thus obtained.
  • the circulator fan 1 according to the second embodiment can prevent operating noise from being amplified without changing the shape of the axial flow blade 200. Therefore, the circulator fan 1, having a structure in which the space 500 is formed by being surrounded by the hub 205 and the face of the electric motor 100 located closer to the axial flow blade 200, can easily prevent an increase in the level of operating noise caused by resonance.
  • FIG. 7 is an enlarged side sectional view illustrating an interior of the hub of a circulator fan according to a third embodiment of the present invention.
  • FIG. 8 is a perspective view of a partition plate that partitions the interior of the hub of the circulator fan according to the third embodiment.
  • the axial flow blade 200 of the circulator fan 1 according to the third embodiment includes engagement portions 214, 215, 216, and 217 on the outer side of the boss 202.
  • the partition plate 400 is formed with the hole 402 on the plate surface 401.
  • the hole 402 has a diameter equal to the diameter of the boss 202.
  • the partition plate 400 has an outer diameter smaller than the inner diameter of the hub 205.
  • the boss 202 extends through the hole 402.
  • the partition plate 400 is interposed between the engagement portions 214 and 216 and between the engagement portions 215 and 217 and is thereby fixed to the axial flow blade 200. While the partition plate 400 can be fitted in a state of being elastically deformed and warped between the engagement portions 214 and 216 and between the engagement portions 215 and 217, it is also allowable to use another fitting method.
  • At least one hole 404 is formed around the hole 402 through which the boss 202 extends. That is, at least one hole 404 is formed on the plate surface 401 in addition to the hole 402 through which the boss 202 extends.
  • Other constituent elements are identical to those according to the first embodiment. While the shape and size of the hole 404 and the number of holes 404 are not particularly limited, because the partition plate 400 rotates along with the axial flow blade 200, it is preferable that the holes 404 are positioned in such a manner as to
  • the partition plate 400 installed in the hub 205 partitions the space 500 into the space 501 and the space 502, and thereby it is the space 502 where resonance occurs as illustrated in FIG. 7 .
  • the dimension of the space where resonance occurs in the rotational-axis direction of the axial flow blade 200 is changed: from "A+B" that is the sum of the dimension A between the partition plate 400 and the front surface 205a of the hub 205 and the dimension B between the partition plate 400 and the electric motor frame 103; to the dimension B between the partition plate 400 and the electric motor frame 103.
  • the volume of the space where resonance occurs is changed: from "V1+V2" that is the sum of the volume V1 of the space 501 between the partition plate 400 and the front surface 205a of the hub 205 and the volume V2 of the space 502 between the partition plate 400 and the electric motor frame 103; to the volume V2 of the space 502 between the partition plate 400 and the electric motor frame 103. Therefore, the frequency of air column resonance and Helmholtz resonance is changed by installing the partition plate 400. There is a gap between the inner diameter of the hub 205 and the outer circumference 403 of the partition plate 400, and the partition plate 400 is formed with the holes 404 on the plate surface 401. Thus, Helmholtz resonance also occurs in the space 501. An effect of muffling the resonance is thus obtained in an extended area including the plate surface 401 on which there are the holes 404.
  • the circulator fan 1 according to the third embodiment can prevent operating noise from being amplified without changing the shape of the axial flow blade 200. Therefore, the circulator fan 1, having a structure in which the space 500 is formed by being surrounded by the hub 205 and the face of the electric motor 100 located closer to the axial flow blade 200, can easily prevent an increase in the level of operating noise caused by resonance.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (7)

  1. Axialströmungsschaufel (200), die aufweist:
    eine Nabe (202), durch den sich im Gebrauch eine Welle (101) eines Elektromotors (100) erstreckt, wobei der Elektromotor (100) die Welle (101) um eine Rotationsachse dreht;
    eine Nabe (205) mit einer zylindrischen Form, die auf einer dem Elektromotor (100) näheren Seite geöffnet ist, wobei die Nabe (205) koaxial mit der Nabe (202) ist und einen Umfang der Nabe (202) umgibt; und
    eine Trennplatte (400), die in der Nabe (205) installiert ist, um einen Raum (500) in der Nabe (205) in zwei oder mehr Räume (501, 502) zu unterteilen,
    wobei eine Lücke zwischen einem Innendurchmesser der Nabe (205) und einem Außenumfang (403) der Trennplatte (400) gebildet wird, wobei die Lücke die zwei oder mehr unterteilten Räume (501, 502) verbindet.
  2. Axialströmungsschaufel (200), die aufweist:
    eine Nabe (202), durch die sich im Gebrauch eine Welle (101) eines Elektromotors (100) erstreckt, wobei der Elektromotor (100) die Welle (101) um eine Drehachse dreht;
    eine Nabe (205) mit einer zylindrischen Form, die auf einer dem Elektromotor (100) näheren Seite geöffnet ist, wobei die Nabe (205) koaxial mit der Nabe (202) ist und einen Umfang der Nabe (202) umgibt; und
    eine Trennplatte (400), die in der Nabe (205) installiert ist, um einen Raum (500) in der Nabe (205) in zwei oder mehr Räume (503, 504) zu unterteilen,
    wobei eine Lücke zwischen einem Außendurchmesser der Nabe (202) und einem Loch (402) der Trennplatte (400) gebildet wird, wobei die Lücke die zwei oder mehr unterteilten Räume (503, 504) verbindet.
  3. Axialströmungsschaufel (200) nach Anspruch 1,
    wobei
    die Trennplatte (400) mit einem Loch (402) in ihrer Mitte ausgebildet ist, wobei sich die Welle (101) durch das Loch (402) erstreckt, und
    die Trennplatte (400) mit der Welle (101) sich durch das Loch (402) erstreckt und zwischen der Nabe (202) und einem an der Welle (101) angeordneten Nabenanlageabschnitt (106) angeordnet ist, und an der Nabe (202) fixiert ist.
  4. Axialströmungsschaufel (200) nach Anspruch 2, wobei
    die Trennplatte (400) mit einem Loch (402) in ihrer Mitte gebildet ist, wobei sich die Nabe (202) durch das Loch (402) erstreckt,
    die Nabe (205) mit einem Eingriffsabschnitt (210, 211, 212, 213) ausgebildet ist, der von einer inneren Oberfläche der Nabe (205) nach innen ragt, und
    die Trennplatte (400) an der Nabe (205) fixiert ist, indem ein äußerer Umfangsabschnitt der Trennplatte (400) mit dem Eingriffsabschnitt (210, 211, 212, 213) zusammenwirkt.
  5. Axialströmungsschaufel (200) nach Anspruch 1, wobei
    die Trennplatte (400) mit einem Loch (402) in ihrer Mitte gebildet ist, wobei sich die Nabe (202) durch das Loch (402) erstreckt,
    die Nabe (202) mit einem Eingriffsabschnitt (214, 215, 216, 217) gebildet ist, der von einem äußeren Umfangsabschnitt der Nabe (202) nach außen ragt, und
    die Trennplatte (400) an der Nabe (202) fixiert wird, indem ein Rand des Lochs (402) der Trennplatte (400) mit dem Eingriffsabschnitt (214, 215, 216, 217) zusammenwirkt.
  6. Axialströmungsschaufel (200) nach einem der Ansprüche 2 bis 5, wobei die Trennplatte (400) mit mindestens einem Loch (404) auf einer Plattenoberfläche (401) davon ausgebildet ist zusätzlich zu dem Loch (402), durch das sich die Nabe (202) erstreckt.
  7. Gebläse (1), das die Axialströmungsschaufel (200) nach einem der Ansprüche 1 bis 6 und den Elektromotor (100) aufweist.
EP18912353.2A 2018-03-29 2018-03-29 Axialstromschaufel und gebläse Active EP3779207B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/013288 WO2019186910A1 (ja) 2018-03-29 2018-03-29 軸流羽根及び送風機

Publications (3)

Publication Number Publication Date
EP3779207A1 EP3779207A1 (de) 2021-02-17
EP3779207A4 EP3779207A4 (de) 2021-04-07
EP3779207B1 true EP3779207B1 (de) 2023-07-26

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Application Number Title Priority Date Filing Date
EP18912353.2A Active EP3779207B1 (de) 2018-03-29 2018-03-29 Axialstromschaufel und gebläse

Country Status (5)

Country Link
EP (1) EP3779207B1 (de)
JP (1) JP6942242B2 (de)
KR (1) KR102405401B1 (de)
CN (1) CN111919034A (de)
WO (1) WO2019186910A1 (de)

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JPS5530963U (de) * 1978-08-21 1980-02-28
JPS5820395U (ja) * 1981-08-03 1983-02-08 三菱電機株式会社 送風機における羽根車
JPH04259696A (ja) * 1991-02-14 1992-09-16 Toshiba Corp ファン
JP2911236B2 (ja) * 1991-02-21 1999-06-23 松下電器産業株式会社 送風機
JPH0518398A (ja) 1991-07-11 1993-01-26 Matsushita Seiko Co Ltd 軸流羽根
JP2004003452A (ja) * 2002-04-09 2004-01-08 Daikin Ind Ltd 送風機の羽根車
JP2006307666A (ja) * 2005-04-26 2006-11-09 Nissan Motor Co Ltd ファン装置
KR101189447B1 (ko) * 2006-08-30 2012-10-09 엘지전자 주식회사 외전형 팬모터
GB2449688A (en) * 2007-05-31 2008-12-03 Greenwood Air Man Ltd An impeller / fan having radially extending blades and axially extending blades
JP2010025038A (ja) * 2008-07-23 2010-02-04 Panasonic Corp 送風機
DE102009003056A1 (de) * 2009-05-13 2010-11-18 Robert Bosch Gmbh Verstelleinrichtung für einen Rotationskörper, sowie Rotationskörper
DE102010028099A1 (de) * 2010-04-22 2011-10-27 Behr Gmbh & Co. Kg Axiallüfter
CN103573717B (zh) * 2012-07-24 2018-06-12 德昌电机(深圳)有限公司 风扇及其叶轮
ITTO20140004U1 (it) * 2014-01-10 2015-07-10 Johnson Electric Asti S R L Ventola per un elettroventilatore di raffreddamento, particolarmente per uno scambiatore di calore per un autoveicolo
JP6277419B2 (ja) * 2014-06-26 2018-02-14 パナソニックＩｐマネジメント株式会社 送風装置

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EP3779207A1 (de) 2021-02-17
KR20200123215A (ko) 2020-10-28
EP3779207A4 (de) 2021-04-07
CN111919034A (zh) 2020-11-10
JPWO2019186910A1 (ja) 2020-12-03
KR102405401B1 (ko) 2022-06-03
JP6942242B2 (ja) 2021-09-29
WO2019186910A1 (ja) 2019-10-03

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