WO2019058573A1 - シロッコファン、送風装置、空気調和機 - Google Patents

シロッコファン、送風装置、空気調和機 Download PDF

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Publication number
WO2019058573A1
WO2019058573A1 PCT/JP2018/000442 JP2018000442W WO2019058573A1 WO 2019058573 A1 WO2019058573 A1 WO 2019058573A1 JP 2018000442 W JP2018000442 W JP 2018000442W WO 2019058573 A1 WO2019058573 A1 WO 2019058573A1
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WO
WIPO (PCT)
Prior art keywords
impeller
boss
air
blower
sirocco fan
Prior art date
Application number
PCT/JP2018/000442
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
政貴 川村
Original Assignee
シャープ株式会社
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 シャープ株式会社 filed Critical シャープ株式会社
Priority to JP2019542967A priority Critical patent/JPWO2019058573A1/ja
Priority to US16/648,940 priority patent/US20200284267A1/en
Priority to CN201880055747.3A priority patent/CN111094757A/zh
Publication of WO2019058573A1 publication Critical patent/WO2019058573A1/ja

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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
    • F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
    • 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
    • F04D19/007—Axial-flow pumps multistage 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
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0025—Cross-flow or tangential fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
    • 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
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/31—Retaining bolts or nuts

Definitions

  • the present invention relates to a sirocco fan and an air conditioner equipped with the sirocco fan as a blower.
  • a conventional air conditioner indoor unit includes a blower inside, and a heat exchanger is provided so as to surround the upper portion and the front portion of the blower.
  • a heat exchanger is provided so as to surround the upper portion and the front portion of the blower.
  • HEPA filter High Efficiency Particulate Air Filter
  • the HEPA filter has a large ventilation resistance, and when the HEPA filter is used for air cleaning, the amount of air blown out from the outlet is significantly reduced. Therefore, when using a HEPA filter for air cleaning, it is necessary to secure a sufficient air volume (a sufficient amount of air suction).
  • a cross flow fan is used as a blower, but in order to obtain a sufficient air flow, it is preferable to use a sirocco fan.
  • a sirocco fan For example, as shown in FIG. 8, a plurality of (two in the drawing) sirocco fans 113 composed of two impellers 113a and 113b are connected in series to be used as a blower.
  • One object of the present invention is to realize a sirocco fan which can fix a boss of an impeller and a rotating shaft without cutting or thinning out a part of the impeller blade portion. Do.
  • the sirocco fan concerning one mode of the present invention is provided with the impeller which has a boss for fixing to the axis of rotation which transmits the rotational force of a motor, and the above-mentioned impeller rotates.
  • a sirocco fan which sucks in air from a direction parallel to the rotation axis of the impeller and discharges the air from the rotation surface of the impeller, wherein the boss is an outer side from an end face of the air suction side of the impeller. It is characterized in that a screw hole is formed in a part of the side surface of the boss which is protruded so as to fix the rotating shaft with a screw.
  • FIG. (A) is a schematic side view of the indoor unit for explaining the state of the open / close lid and the air guide plate when the air conditioner of the present embodiment is in a stopped state
  • (b) is an air conditioning mode of the air conditioner.
  • (c) is an open / close lid and the air guide plate when the air conditioner is in the air cleaning mode and the cooling setting. It is a schematic side view of the indoor unit explaining the state of.
  • FIG. 1 It is a schematic structure perspective view of a fan concerning this embodiment. It is a figure for demonstrating the connection state of the sirocco fan and motor which comprise the air blower shown in FIG. It is a schematic block diagram of the air blower which concerns on Embodiment 2 of this invention. It is a schematic block diagram of the air blower which concerns on Embodiment 3 of this invention. It is a schematic block diagram of the conventional sirocco fan.
  • FIG. 1 is a perspective view showing the appearance of the indoor unit 1 of the air conditioner of the present embodiment.
  • FIG. 2 is a longitudinal sectional view of the indoor unit 1 of the air conditioner shown in FIG.
  • the indoor unit 1 of the air conditioner is provided with a baffle plate 3 on the front surface of the indoor unit main body 2.
  • the indoor unit body 2 has the first suction port 11 at the upper part, the second suction port 12 at the lower part, and the blower fan 13 and the heat exchanger that constitute the blower in the inside. It has 14 and has the outlet 17 in the front.
  • the indoor unit 1 also has a first filter 15 on the inner side (lower side) of the first suction port 11 and a second filter 16 on the inner side (upper side) of the second suction port 12.
  • the first filter 15 is, for example, a filter having a function equivalent to a prefilter, is a filter that has lower performance than the second filter 16, and has a smaller ventilation resistance than the second filter 16.
  • the second filter 16 is, for example, a HEPA filter (High Efficiency Particulate Air Filter), which is a filter that has higher performance than the first filter 15 and has a larger ventilation resistance than the first filter 15.
  • the air sucked from the first suction port 11 is blown out from the blowout port 17 through the first filter 15, the blower fan 13 and the heat exchanger 14. Further, the air sucked from the second suction port 12 is blown out from the blow-off port 17 through the second filter 16, the blower fan 13 and the heat exchanger 14.
  • the first suction port 11 is provided with an open / close lid 18 for opening and closing the first suction port 11.
  • FIG. 3 is a schematic side view of the indoor unit 1 for explaining the state of the open / close lid 18 and the baffle plate 3 when the air conditioner is in a stopped state
  • FIG. I is a schematic side view of the indoor unit 1 explaining the state of the open / close lid 18 and the air guide plate 3 when the air conditioner is in the air conditioning mode and the cooling setting
  • FIG. 3C shows the air conditioner in the air cleaning mode and the cooling setting.
  • the open / close lid 18 is in a closed state when the operation of the air conditioner is stopped. Further, as shown in (b) of FIG. 3, the open / close lid 18 is opened when the air conditioner is operated with the air conditioning function given priority over the air cleaning function (in the case of the air conditioning mode). Furthermore, as shown in (c) of FIG. 3, the open / close lid 18 is closed when the air conditioner is operated with priority given to the air cleaning function over the air conditioning function (in the air cleaning mode).
  • the blower fan 13 is a sirocco fan and constitutes a blower of the indoor unit 1 of the air conditioner. Details of the blower will be described later.
  • the heat exchanger 14 is formed by connecting two heat exchangers up and down, and the connecting portion protrudes forward (a letter shape), and the front position of the blower fan 13 (in the indoor unit 1 relative to the blower fan 13) It is arranged at the front side position).
  • FIG. 4 is a schematic perspective view of a blower according to the present embodiment.
  • FIG. 5 shows an example in which the blower fan 13 is disposed on one side of the drive motor (motor) 33 for convenience of explanation.
  • the blower according to the present embodiment has a configuration in which two blower fans 13 and a drive motor 33 are disposed in the longitudinal direction in the cabinet 30.
  • the drive motor 33 is disposed between the two blower fans 13 so as to transmit a rotational force to the blower fans 13 on both sides. That is, the drive motor 33 in this case is a double-axis motor having the rotary shaft 32 on the left and right.
  • the rotary shaft 32 for transmitting the rotational force from the drive motor 33 is inserted into the boss 31 of the blower fan 13 and fixed by screwing.
  • the rotary shaft 32 supported by the bearing portion 34 is inserted into the boss 31 of the blower fan 13 and fixed by screwing.
  • the blower fan 13 is a sirocco fan having a configuration in which two impellers 13a are connected to each other by the disk surfaces 13b as shown in FIG. 5 (b). That is, when the impeller 13a rotates in a predetermined direction, the blower fan 13 sucks in air from the end face 13c in a direction parallel to the rotation shaft 32 of the impeller 13a, and air from the rotation surface 13d of the impeller 13a Is supposed to discharge.
  • the boss 31 of the impeller 13a is a hollow aluminum pipe, which penetrates the disk surface 13b of each impeller 13a and is formed so as to partially protrude from the end surface 13c opposite to the disk surface 13b. There is. That is, the bosses 31 are formed to project outward from the end face 13c on the air suction side (the end face on the opposite side to the disk surface 13b) which sucks in air when the impeller 13a rotates.
  • a screw hole 31a for fixing a rotary shaft 32 made of stainless steel, which transmits the driving force of the drive motor 33, with a screw is formed on the side surface of a portion of the boss 31 projecting partially from the impeller 13a.
  • the screw holes 31a are formed at the positions of the side surfaces of the bosses 31 protruding from the impeller 13a, it is not necessary to provide a notch for screwing in the impeller 13a as in the prior art.
  • the tightening can be easily done by a driver.
  • the positions at which the screw holes 31a are formed may be different between the bosses 31 of the two impellers 13a, and the screw holes 31a need not necessarily be shifted by 180 degrees in the rotational direction of the rotation shaft 32.
  • the two impellers 13a are connected by the disk surface 13b opposite to the end face 13c on the air suction side, and the screw formed on the boss 31 of one impeller 13a of the two impellers 13a It is preferable that the opening surface of the hole 31a is not flush with the opening surface of the screw hole 31a formed in the boss 31 of the other impeller 13a.
  • the screw holes 31a of the bosses 31 of the respective impellers 13a are respectively +90 degrees, +90 degrees, +90 degrees,... It may be shifted by 90 degrees in order.
  • the formation position of the screw hole 31a is preferably the position of the side surface of the boss 31 completely projecting outward from the end face 13c on the air suction side that sucks in air when the impeller 13a rotates
  • the position of the side of 31 may be sufficient. It may be at least a position where the driver can easily enter when fastening the screw in the screw hole 31a.
  • the boss 31 is formed to project from the impeller 13a, and the screw hole 31a is formed in the discharged portion, so that the rotary shaft 32 of the drive motor 33 is formed. , There is no need to penetrate the boss 31. Thereby, weight reduction of a blower can be achieved rather than the case where a boss is made to penetrate a rotating shaft like before.
  • FIG. 6 is a schematic configuration view of a blower according to the present embodiment.
  • the blower according to the present embodiment is similar to the blower according to the first embodiment (FIG. 4) in that two blower fans 13 and one drive motor 33 are provided.
  • the two blower fans 13 are connected in series by the joint portion 35 connecting the opposing bosses 31, and the boss 31 on the opposite side to the joint portion 35 of one blower fan 13 (the blower fan 13 on the right in FIG. 6).
  • the rotary shaft 32 of the drive motor 33 is connected at Thus, the rotational force of the drive motor 33 is transmitted to the boss 31 connected to the rotation shaft 32 of the drive motor 33 and the blower fan 13 connected to the blower fan 13 having the boss 31 via the joint portion 35. It is transmitted to the boss 31 of. Thereby, the two blower fans 13 are rotated by the drive motor 33.
  • the blower of the above configuration since the blower fans 13 are connected by the joint portion 35, the length in the longitudinal direction of the blower can be easily adjusted simply by changing the length of the joint portion 35. Is possible.
  • joint part 35 is comprised with stainless steel, weight reduction can be achieved rather than the case where iron is used.
  • FIG. 7 is a schematic perspective view of the blower fan 13 constituting the blower according to the present embodiment.
  • the blower fan 13 has a mark 41 for marking the right and left sides of the disk surface 13b.
  • “left” is marked as a mark 41 indicating the left side
  • “right” is marked as a mark 41 indicating the right side in the drawing.
  • the blower fan 13 since the blower fan 13 is connected on the disk surface 13b side of the two impellers 13a, if the direction of attachment to the rotary shaft 32 is incorrect, the blower direction will be reversed. That is, if the direction of attachment to the rotating shaft 32 is incorrect, the direction of rotation of the impeller 13a is reversed. Therefore, air is not sucked from a surface perpendicular to the rotation direction of the impeller 13a, and air is discharged in the opposite direction. In order to prevent this, a mark 41 for distinguishing left and right is stamped on the disk surface 13b. In this embodiment, by forming a part of the mold of the impeller 13a into a nest for marking the mark 41, the mark 41 is marked simultaneously with the formation of the impeller 13a by the mold.
  • the manufacturer can check the left and right only by looking at the mark 41.
  • the right and left attachment errors of the impeller 13a can be eliminated.
  • the mounting direction of the impeller may be up and down instead of left and right, so a mark 41 may be used so that the up and down can be recognized.
  • the mark 41 may be any mark that does not mistake the left and right (up and down) when fixing the impeller 13a to the rotary shaft 32, and in addition to the above-described marking that can be visually checked, the disk surface 13b or the impeller A mark such as a protrusion (not shown) may be formed on part of the part 13a such that the user can distinguish between left and right (upper and lower) by touching.
  • two marks are stamped or formed to distinguish the left and right (upper and lower) of the two impellers 13a, but if the left and right (upper and lower) of one impeller 13a can be distinguished,
  • the mark 41 may be stamped or formed on at least one of the two impellers 13a because the right and left (upper and lower) of the impeller 13a can also be distinguished.
  • the rotary shaft 32 is not mistaken for the rotary direction of the impeller 13a. It can be attached to
  • the above-mentioned mark 41 is formed in the mold at the time of manufacture of impeller 13a using a nest, but it is not limited to this, and the mark on disc surface 13b after manufacture of impeller 13a 41 may be formed by a stamp or may be attached as a seal.
  • the two impellers 13a can be made symmetrical in the blower fan 13, it is possible to share parts. This makes it possible to reduce the manufacturing cost.
  • the sirocco fan according to aspect 1 of the present invention includes an impeller 13a having a boss 31 for fixing to a rotating shaft 32 for transmitting a rotational force of a motor (drive motor 33), and the impeller 13a rotates.
  • a sirocco fan which sucks in air from a direction parallel to the rotation shaft 32 of the impeller 13a and discharges the air from the rotation surface 13d of the impeller 13a, wherein the boss 31 is a member of the air of the impeller 13a.
  • a screw hole 31a is formed on the side surface of the projecting portion of the boss 31 so as to protrude from the end face 13c on the suction side, and a screw hole 31a for fixing the rotating shaft 32 with a screw is formed.
  • the boss for fixing to the rotary shaft for transmitting the rotational force of the motor is formed to protrude outward from the end face of the air suction side of the impeller, and A screw hole for fixing the rotating shaft with a screw is formed in a part, so that when the boss is fixed to the rotating shaft, the boss is formed inside the end surface on the air suction side of the impeller.
  • the two impellers 13a are connected by the surface (disk surface 13b) opposite to the end face 13c on the air suction side, Among the impellers 13a, the opening surface of the screw hole 31a formed in the boss 31 of one impeller 13a is not flush with the opening surface of the screw hole 31a formed in the boss 31 of the other impeller 13a. preferable.
  • the opening face of the screw hole 31 a formed in the boss 31 of one of the two impellers 13 a of the two impellers 13 a and the other impeller It is preferable that the opening surface of the screw hole 31 a formed in the boss 31 of 13 a be shifted by 180 degrees in the rotation direction of the rotation shaft 32.
  • the opening surface of the screw hole formed in the boss of one of the two impellers and the opening surface of the screw hole formed in the boss of the other impeller are:
  • At least one of the impeller 13a may be provided with a mark 41 for distinguishing the attachment direction to the rotation shaft 32.
  • At least one of the impellers is provided with a mark for distinguishing the attachment direction to the rotation shaft, so that the impeller can be attached to the rotation shaft without making a mistake in the rotation direction. It becomes possible.
  • the boss 31 may be formed of aluminum.
  • the boss is formed of aluminum, which makes it possible to reduce the weight of the entire sirocco fan.
  • the air blower according to aspect 6 of the present invention comprises a plurality of the sirocco fans (air fan 13) according to any one of the above aspects 2 to 5, and the respective sirocco fans (air fan 13) are rotatably connected in series. It is characterized by being connected to.
  • An air conditioner according to aspect 7 of the present invention is characterized by including the sirocco fan (the blower fan 13) according to any one of the aspects 1 to 5 as a blower.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
PCT/JP2018/000442 2017-09-25 2018-01-11 シロッコファン、送風装置、空気調和機 WO2019058573A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2019542967A JPWO2019058573A1 (ja) 2017-09-25 2018-01-11 シロッコファン、送風装置、空気調和機
US16/648,940 US20200284267A1 (en) 2017-09-25 2018-01-11 Sirocco fan, blowing device, and air conditioner
CN201880055747.3A CN111094757A (zh) 2017-09-25 2018-01-11 西洛克风扇、送风装置、空气调节机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-184003 2017-09-25
JP2017184003 2017-09-25

Publications (1)

Publication Number Publication Date
WO2019058573A1 true WO2019058573A1 (ja) 2019-03-28

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PCT/JP2018/000442 WO2019058573A1 (ja) 2017-09-25 2018-01-11 シロッコファン、送風装置、空気調和機

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US (1) US20200284267A1 (zh)
JP (1) JPWO2019058573A1 (zh)
CN (1) CN111094757A (zh)
WO (1) WO2019058573A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112240607A (zh) * 2019-07-19 2021-01-19 夏普株式会社 送风装置、空气调节机的室内机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD999901S1 (en) * 2023-02-03 2023-09-26 Minhua Chen Fan blade

Citations (6)

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JPS485848Y1 (zh) * 1968-12-23 1973-02-14
JPS568897U (zh) * 1979-06-30 1981-01-26
JPS5749075Y2 (zh) * 1978-01-27 1982-10-27
JPS6279995U (zh) * 1985-11-07 1987-05-22
JPH04164195A (ja) * 1990-10-26 1992-06-09 Matsushita Electric Ind Co Ltd 多翼形羽根車
JPH09126186A (ja) * 1995-11-02 1997-05-13 Hokuto:Kk 送風機用ファン

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US4436484A (en) * 1982-04-19 1984-03-13 Lilliston Corporation Transverse flow fan rotor
JPH1113689A (ja) * 1997-06-20 1999-01-19 Fujitsu General Ltd クロスフローファンの軸受構造
JP2002257078A (ja) * 2001-02-26 2002-09-11 Matsushita Electric Ind Co Ltd 多翼形羽根車とその製造方法
JP5396868B2 (ja) * 2009-01-16 2014-01-22 パナソニック株式会社 送風機
JP2013119804A (ja) * 2011-12-07 2013-06-17 Mitsubishi Heavy Ind Ltd 送風装置およびそれを用いた空気調和機

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Publication number Priority date Publication date Assignee Title
JPS485848Y1 (zh) * 1968-12-23 1973-02-14
JPS5749075Y2 (zh) * 1978-01-27 1982-10-27
JPS568897U (zh) * 1979-06-30 1981-01-26
JPS6279995U (zh) * 1985-11-07 1987-05-22
JPH04164195A (ja) * 1990-10-26 1992-06-09 Matsushita Electric Ind Co Ltd 多翼形羽根車
JPH09126186A (ja) * 1995-11-02 1997-05-13 Hokuto:Kk 送風機用ファン

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112240607A (zh) * 2019-07-19 2021-01-19 夏普株式会社 送风装置、空气调节机的室内机
CN112240607B (zh) * 2019-07-19 2024-01-02 夏普株式会社 送风装置、空气调节机的室内机

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US20200284267A1 (en) 2020-09-10
CN111094757A (zh) 2020-05-01
JPWO2019058573A1 (ja) 2020-09-03

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