WO2020017182A1 - Soufflante - Google Patents

Soufflante Download PDF

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Publication number
WO2020017182A1
WO2020017182A1 PCT/JP2019/022664 JP2019022664W WO2020017182A1 WO 2020017182 A1 WO2020017182 A1 WO 2020017182A1 JP 2019022664 W JP2019022664 W JP 2019022664W WO 2020017182 A1 WO2020017182 A1 WO 2020017182A1
Authority
WO
WIPO (PCT)
Prior art keywords
impeller
spiral
ventilation path
side plate
spiral ventilation
Prior art date
Application number
PCT/JP2019/022664
Other languages
English (en)
Japanese (ja)
Inventor
真俊 川埼
優輝 高橋
Original Assignee
サンデン・オートモーティブクライメイトシステム株式会社
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 サンデン・オートモーティブクライメイトシステム株式会社 filed Critical サンデン・オートモーティブクライメイトシステム株式会社
Priority to CN201980047579.8A priority Critical patent/CN112400066B/zh
Publication of WO2020017182A1 publication Critical patent/WO2020017182A1/fr

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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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • 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

Definitions

  • the present invention relates to, for example, a blower used for a vehicle air conditioner.
  • the casing is provided on a first side plate provided on one end side in the axial direction of the impeller, a second side plate provided on the other end side in the axial direction, on which an air intake port is formed, and provided on a radially outer side of the impeller.
  • the spiral ventilation path is formed between the first side plate and the second side plate and between the outer peripheral portion of the impeller and the outer peripheral plate.
  • the cross-sectional area of the flow path is gradually increased from the start end to the end in order to allow the air having a reduced flow velocity to flow out from the discharge port.
  • the distance between the rotating shaft of the impeller and the outer peripheral plate is gradually increased from the start end side to the end side of the spiral ventilation passage, and the first side plate is gradually extended in one of the rotating shaft directions of the impeller.
  • the cross-sectional area of the spiral ventilation path is gradually increased. For this reason, in the blower, a step is formed in the first side plate of the casing between the start end and the end of the spiral ventilation path.
  • a circulating flow is generated in which the air flowing through the spiral ventilation path flows from the terminal end to the start end again.
  • the air flow separates from the first side plate.
  • the flow of air is disturbed on the start end side of the spiral ventilation passage.
  • a turbulence occurs in the air flow at the start end side of the spiral ventilation path, it may cause noise.
  • An object of the present invention is to provide a blower capable of improving noise reduction by suppressing turbulence of a circulating flow flowing from the end side to the start side of a spiral ventilation path.
  • a blower of the present invention includes a tubular impeller, a casing in which the impeller is housed therein, and a spiral ventilation path formed radially outside the impeller housed therein.
  • the casing comprises: a first side plate provided on one end side in the rotation axis direction of the impeller; a second side plate provided on the other end side in the rotation axis direction and formed with an air intake port; and a diameter of the impeller.
  • An outer peripheral plate provided on the outer side in the direction, and extending in the rotation direction of the impeller from the start and end sides of the spiral ventilation passage in the first side plate and the second side plate, and from the terminal end of the spiral ventilation passage.
  • connection ventilation path connected to the starting end of the path is formed by connecting one or both of a flat surface having a constant height and an inclined surface having a gradually changing height, and a first side plate.
  • a flat surface having a constant height and an inclined surface having a gradually changing height and a first side plate.
  • the radially inner that plane provided so as to extend along the outer periphery of the impeller in the circumferential direction of the impeller, projection projecting toward the second side plate side.
  • the first and second side plates have a smooth end surface having no steps, and the start and end sides of the spiral air passage and the surfaces forming the connection air passages are smooth surfaces having no steps.
  • the circulating flow flowing from the terminal side to the start end of the spiral ventilation path along the connection ventilation path flows along the first side plate and the second side plate without separation, and the terminal side and the start end of the spiral ventilation path Air flowing out of the impeller in the vicinity of the side and the connection ventilation path flows along the protrusion and flows into the spiral ventilation path or the connection flow path, and turbulence of the air is suppressed.
  • the circulating flow flowing from the end side to the start end side of the spiral ventilation path through the connection ventilation path along the first side plate and the second side plate is not separated from the first side plate and the second side plate.
  • the air flowing out of the outer peripheral portion of the impeller near the end side and the starting end side of the spiral ventilation path and near the connection ventilation path is caused to flow along the protrusion to form a spiral.
  • FIG. 1 is an overall perspective view of a blower showing an embodiment of the present invention. It is a top view of a blower. It is a plane sectional view of a blower. FIG. 3 is a sectional view taken along line AA of FIG. 2.
  • FIGS. 1 to 4 show an embodiment of the present invention.
  • the blower 1 of the present invention is a centrifugal blower as shown in FIG. 1, and is used, for example, as a blower of a vehicle air conditioner.
  • the blower 1 includes an impeller 10 formed in a cylindrical shape, an electric motor 20 for rotating the impeller 10, and a casing 30 in which the impeller 10 is housed. Have.
  • the impeller 10 is disposed at a predetermined interval in the circumferential direction and is provided at one axial end with a plurality of blades 11 extending in a cylindrical axial direction. And a rim 13 provided on the other end side in the axial direction.
  • the plurality of blades 11 are arranged so as to extend from the radially inner side to the outer side.
  • the plurality of blades 11 each have a radially outer side curved toward one side in a circumferential direction with respect to a radially inner side.
  • the substrate 12 is a disk-shaped member in which one ends of the plurality of blades 11 are connected to each other on the outer peripheral side at intervals in the circumferential direction.
  • the substrate 12 has a projection 12a that gradually projects from the radially inner side of the outer peripheral portion to which the one end of each blade 11 is connected to the center toward the other end in the axial direction.
  • a concave portion is formed which is gradually depressed toward the other end in the axial direction toward the center in the radial direction with respect to the outer peripheral side.
  • the rim 13 is a cylindrical member in which the other ends of the plurality of blades 11 are connected to each other at intervals in the circumferential direction.
  • the electric motor 20 is disposed at one axial end of the impeller 10 in a recess at one end surface of the substrate 12 in the rotational axis direction.
  • the electric motor 20 has a rotating shaft 21 connected to the radial center of the substrate 12 and rotates the impeller 10 in one circumferential direction.
  • the casing 30 includes a first side plate 31 provided at one end of the impeller 10 in the rotation axis direction, a second side plate 32 provided at the other end of the impeller 10 in the rotation axis direction, An outer peripheral plate 33 extending between the outer peripheral portions of the first side plate 31 and the second side plate 32 in the circumferential direction of the impeller 10.
  • a motor support hole 31a for supporting the electric motor 20 in a penetrated state is provided at a substantially central portion of the first side plate 31.
  • a suction port 34 for sucking air into the casing 30 is provided at a substantially central portion of the second side plate 32.
  • a cover 32a is provided which surrounds the other end of the rim 13 of the impeller 10 in the rotation axis direction, and radially inside and outside.
  • the outer peripheral plate 33 gradually increases in distance from the rotation axis of the impeller 10 from a predetermined reference position S away from the rotation axis of the impeller 10 toward the rotation direction of the impeller 10.
  • the casing 30 is provided with a discharge port 35 for discharging the air sucked into the casing 30 through the suction port 34, as shown in FIGS.
  • the discharge port 35 is formed at an end of a portion surrounded by the first side plate 31, the second side plate 32, the linear portion 33b, and the extension portion 33d.
  • the casing 30 has a spiral ventilation path 36 for flowing the inflowing air on the outer peripheral side of the impeller 10 in the rotation direction of the impeller 10, and an end portion of the spiral ventilation path 36.
  • a discharge ventilation path 37 communicating with the outlet 35 and a connection ventilation path 38 extending from the end of the spiral ventilation path 36 in the rotation direction of the impeller 10 and connected to the start end of the spiral ventilation path 36 are provided. I have.
  • the spiral ventilation passage 36 is provided between the first side plate 31 and the second side plate 32 and between the outer peripheral portion of the impeller 10 and the portion of the outer peripheral plate 33 located on the spiral portion 33a side of the spiral portion 33a and the straight portion 33b. It is provided between them. As shown in FIG. 3, the spiral ventilation passage 36 gradually increases in size in the radial direction from the start end to the end.
  • the dimension H of the impeller 10 in the rotation axis direction changes between the start end and the end. That is, the spiral ventilation passage 36 is formed such that the dimension H in the rotation axis direction of the impeller 10 is gradually reduced from the start end and the end to the predetermined position P between the start end and the end of the spiral ventilation passage 36.
  • the predetermined position P between the start end and the end of the spiral ventilation path 36 is set in the direction of rotation of the impeller 10 from the position S of the radially inner end of the spiral 33 a around the rotation axis of the impeller 10.
  • the predetermined angle ⁇ is desirably in the range of 90 degrees to 150 degrees. Further, the predetermined angle ⁇ is more desirably approximately 120 degrees.
  • the spiral ventilation path 36 is formed between the second flat plate 32 and the first flat plate 31 whose distance from the second flat plate 32 gradually changes.
  • portions corresponding to the start end and the end of the spiral ventilation path 36 are formed at substantially the same height.
  • the first side plate 31 gradually extends from the portion corresponding to the start end and the end of the spiral ventilation passage 36 to the portion corresponding to the predetermined position P between the start end and the end of the spiral ventilation passage 36. It overhangs to the 32 side.
  • the discharge air passage 37 is provided between the first side plate 31 and the second side plate 32, and between a portion of the straight portion 33b located on the discharge port 35 side and the extension portion 33d. As shown in FIG. 3, the size of the discharge ventilation path 37 in the radial direction gradually increases from the end of the spiral ventilation path 36 toward the discharge port 35.
  • the discharge air passage 37 is separated from the start end of the spiral air passage 36 by a tongue 33c.
  • connection ventilation passage 38 is provided between the first side plate 31 and the second side plate 32 and between the outer peripheral portion of the impeller 10 and the terminal end of the spiral ventilation passage 36.
  • the surface of the first side plate 31 corresponding to the connection ventilation passage 38 is formed at substantially the same height as the start end and the end of the spiral ventilation passage 36.
  • the surface of the first side plate 31 corresponding to the connection ventilation passage 38 is formed flush with the start end side of the spiral ventilation passage 36, and the portion corresponding to the terminal end of the spiral ventilation passage 36 does not have a step. They are connected at the same height.
  • a protrusion 31 b protruding toward the second side plate 32 is provided radially inward of a surface corresponding to the start end side and the end side of the connection ventilation path 38 and the spiral ventilation path 36. .
  • the protrusion 31b extends in the circumferential direction outside the impeller 10 in the radial direction.
  • the protrusion 31b extends from the position S at the radially inner end of the spiral part 33a around the rotation axis of the impeller 10 toward the rotation direction of the impeller 10 from the predetermined angle ⁇ 1 through the position S to the predetermined angle ⁇ 2. Is formed up to.
  • the predetermined angle ⁇ 1 is desirably in a range from 180 degrees to 290 degrees. Further, the predetermined angle ⁇ 2 is desirably in the range of 40 degrees to 60 degrees.
  • the height of the projection 31b decreases from the connection ventilation passage 38 toward the start end and the end of the spiral ventilation passage 36.
  • an inclined surface 31c On the outer peripheral side of the protruding portion 31b, there is provided an inclined surface 31c whose height dimension gradually decreases outward in the radial direction.
  • the inclined surface 31c is formed between the end of the spiral ventilation passage 36 on the terminal end side of the projection 31b and the connection ventilation passage 38.
  • the air outside the casing 30 flows through the suction port 34 provided in the second side plate 32. And is sucked into the casing 30.
  • the air sucked into the casing 30 through the suction port 34 flows inward from the other axial end of the impeller 10 and radially flows out from the outer peripheral portion of the impeller 10.
  • the air radially flowing from the outer periphery of the impeller 10 flows through the spiral ventilation path 36 and the discharge ventilation path 37 of the casing 30 and is discharged from the discharge port 35, and a part of the air is terminated at the end of the spiral ventilation path 36. Flows from the side through the connection ventilation passage 38 into the start end side of the spiral ventilation passage 36 as a circulating flow.
  • the surfaces of the first side plate 31 corresponding to portions extending from the end side of the spiral ventilation path 36 to the start end side of the spiral ventilation path 36 via the connection ventilation path 38 have substantially the same height without any step. Is formed. For this reason, the circulating flow flowing from the terminal side to the starting end side of the spiral ventilation path 36 via the connection ventilation path 38 along the first side panel 31 does not separate from the first side panel 31 and flows along the first side panel 31. As a result, the turbulence of the air flow on the start end side of the spiral ventilation passage 36 is suppressed.
  • a protrusion 31b is formed on the first side plate 31 at a radially inner side of a surface corresponding to a portion extending from the end side of the spiral air passage 36 to the start end side of the spiral air passage 36 via the connection air passage 38. I have. For this reason, in a portion extending from the end side of the spiral ventilation path 36 to the start end side of the spiral ventilation path 36 via the connection ventilation path 38, the air flowing out from the outer peripheral portion along the substrate 12 of the impeller 10 flows to the protrusion 31 b. The air flows radially outward along the spiral air passage 36 or the connection air passage 38, so that the turbulence of the air flow on the connection air passage 38, the end side and the start end side of the spiral air passage 36 is suppressed. .
  • the protrusion 31b Since the height of the protrusion 31b gradually decreases toward both ends, the protrusion 31b flows from the end of the spiral air passage 36 to the start end of the spiral air passage 36 via the connection air passage 38. The turbulence of the flowing air is suppressed. Further, an inclined surface 31c whose height decreases toward the radially outer side is provided on the radially outer side of the protruding portion 31b located on the terminal side of the spiral ventilation passage 36. For this reason, the air flowing along the protruding portion 31b flows along the inclined surface 31c and flows into the spiral ventilation passage 36, so that the turbulence of the air flowing into the end side of the spiral ventilation passage 36 is suppressed.
  • the dimension H of the impeller 10 in the rotation axis direction gradually increases from the start end side and the end side toward a predetermined position P between the start end and the end end in the spiral ventilation passage 36. It is formed small. Furthermore, the spiral ventilation path 36 is formed such that the radial dimension of the impeller 10 gradually increases in the direction in which the impeller 10 rotates. For this reason, in the circulating flow flowing along the first side plate 31 to the start end side of the spiral ventilation path 36, the dimension H of the spiral ventilation path 36 gradually decreases to a predetermined position P and the radial dimension gradually increases. This suppresses an increase in the flow velocity.
  • the circulating flow circulating to the predetermined position P of the spiral ventilation passage 36 along the first side plate 31 has a dimension H of the spiral ventilation passage 36 gradually increasing from the predetermined position P toward the terminal side of the spiral ventilation passage 36 and the diameter thereof.
  • the first side plate 31 extends in the rotation direction of the impeller 10 from the start end side and the end side of the spiral ventilation path 36 and the terminal end of the spiral ventilation path 36 to rotate.
  • the surface forming the connection ventilation passage 38 connected to the starting end of the passage 36 is formed by connecting an inclined surface having a gradually changing height, and the first side plate 31 has the starting end side of the spiral ventilation passage 36 and At the end side, radially inward of the surface forming the connection ventilation passage 38, the outer peripheral side of the impeller 10 is provided so as to extend along the circumferential direction of the impeller 10, and protrudes toward the second side plate 32.
  • a protrusion 31b is provided.
  • the circulating flow flowing from the end side to the starting end side of the spiral ventilation passage 36 through the connection ventilation passage 38 along the first side plate 31 is formed along the first side plate 31 without being separated from the first side plate 31.
  • the air flowing out of the outer periphery of the impeller 10 near the end side and the start end side of the spiral ventilation path 36 and near the connection ventilation path 38 is circulated along the projection 31b, and the spiral ventilation path 36 or the connection ventilation.
  • the dimension H of the impeller 10 in the spiral ventilation passage 36 in the rotation axis direction is from the start end and the end of the spiral ventilation passage 36 to a predetermined position P between the start end and the end of the spiral ventilation passage 36. It is formed gradually smaller.
  • the circulating flow flowing from the end side to the starting end side of the spiral ventilation passage 36 through the connection ventilation passage 38 along the first side plate 31 is formed along the first side plate 31 without being separated from the first side plate 31.
  • the circulating flow flowing along the first side plate 31 along the first side plate 31 the circulating flow flowing into the start end side of the spiral ventilation path 36 can be rectified, thereby suppressing the generation of sound. It is possible to improve the quietness.
  • the spiral ventilation path 36 is formed between the second flat plate 32 and the first flat plate 31 whose distance from the second flat plate 32 gradually changes.
  • the predetermined position P between the start end side and the end side in the spiral ventilation passage 36 is about 90 to 150 degrees from the start end to the termination end of the spiral ventilation passage 36 about the rotation axis of the impeller 10. Within range.
  • the projection 31b is connected to the spiral ventilation passage 36 from the starting end of the spiral ventilation passage 36 at an angle of 180 degrees from the start end to the terminal end of the spiral ventilation passage 36 through the connection ventilation passage 38, and extends from the start end of the spiral ventilation passage 36 by 60 degrees. It is formed in the range up to the degree.
  • the inclined surface 31c is formed in a range from the end of the spiral ventilation passage 36 on the end side of the protruding portion 31b to the connection ventilation passage 38.
  • the air-conditioning apparatus in the indoor of a building, and the air-blowing means, such as a ventilation apparatus, other than the air-blowing means of the vehicle air-conditioning apparatus.
  • the second side plate 32 is formed in a flat plate shape, and the spiral ventilation passage 36 and the connection ventilation passage 38 are formed by the first side plate 31 having a shape in which the distance from the second side plate 32 gradually changes.
  • the present invention is not limited to this.
  • the first side plate may be formed in a flat plate shape, and the spiral ventilation path and the connection ventilation path may be formed by the second side plate having a shape in which the distance from the first side plate changes gradually.
  • the spiral ventilation path and the connection ventilation path may be generated by gradually changing the height of both the first side plate and the second side plate in the direction of the rotation axis of the impeller.
  • the surface of the first side plate 31 corresponding to the connection ventilation passage 38 is formed flush with the start end side of the spiral ventilation passage 36 and has the same height as the end portion of the spiral ventilation passage 36.
  • the connection is shown, but the connection is not limited to this. It is sufficient that the surfaces of the first side plate 31 corresponding to the start and end sides of the spiral ventilation passage 36 and the connection ventilation passage 38 are connected by a smooth surface that does not generate a step, and only a flat surface having a constant height is used. Connection may be made, connection may be made only with a slope whose height gradually changes, or connection may be made with a flat face and a slope.

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

Abstract

[Problème] Fournir une soufflante qui permet d'améliorer les propriétés de faible bruit en réduisant une perturbation sur un écoulement de circulation qui s'écoule dans un côté de début à partir d'un côté de fin d'un trajet de ventilation en spirale. [Solution] Une surface, dans un premier panneau latéral (31), qui est au niveau d'un côté de début et d'un côté de fin d'un trajet de ventilation en spirale (36) et qui forme un trajet de ventilation de raccordement (38) qui s'étend dans une direction de rotation d'une roue (10) à partir d'une fin du trajet de ventilation en spirale (36) et se raccorde à un début du trajet de ventilation en spirale (36), est formée en raccordant des surfaces inclinées dont la hauteur change progressivement. Une partie saillante (31b) est disposée sur le côté interne radial de la surface dans le premier panneau latéral (31), qui est au niveau du côté de début et du côté de fin du trajet de ventilation en spirale (36) et qui forme le trajet de ventilation de raccordement (38), la partie saillante s'étendant dans la direction circonférentielle de la roue (10) le long du côté périphérique externe de la roue (10) et faisant saillie vers l'extérieur vers un second panneau latéral (32).
PCT/JP2019/022664 2018-07-18 2019-06-07 Soufflante WO2020017182A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201980047579.8A CN112400066B (zh) 2018-07-18 2019-06-07 送风机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018135215 2018-07-18
JP2018-135215 2018-07-18

Publications (1)

Publication Number Publication Date
WO2020017182A1 true WO2020017182A1 (fr) 2020-01-23

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Application Number Title Priority Date Filing Date
PCT/JP2019/022664 WO2020017182A1 (fr) 2018-07-18 2019-06-07 Soufflante
PCT/JP2020/016500 WO2020241095A1 (fr) 2018-07-18 2020-04-15 Soufflante

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Application Number Title Priority Date Filing Date
PCT/JP2020/016500 WO2020241095A1 (fr) 2018-07-18 2020-04-15 Soufflante

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JP (1) JP2020020338A (fr)
CN (1) CN112400066B (fr)
WO (2) WO2020017182A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020241095A1 (fr) * 2018-07-18 2020-12-03 サンデン・オートモーティブクライメイトシステム株式会社 Soufflante

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5073208A (fr) * 1973-10-24 1975-06-17
JPH04269399A (ja) * 1991-01-18 1992-09-25 John T Sullivan 送風機のハウジング
JP2007270631A (ja) * 2006-03-30 2007-10-18 Japan Servo Co Ltd 遠心ファン
WO2011148578A1 (fr) * 2010-05-26 2011-12-01 株式会社ヴァレオジャパン Unité de ventilation pour véhicule

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101812014B1 (ko) * 2010-12-03 2017-12-26 엘지전자 주식회사 공기조화기용 송풍기
JP6073604B2 (ja) * 2012-09-03 2017-02-01 サンデンホールディングス株式会社 遠心送風機
JP6070232B2 (ja) * 2013-02-05 2017-02-01 株式会社Ihi 過給機
ES2866155T3 (es) * 2015-12-30 2021-10-19 Sulzer Management Ag Bomba centrífuga horizontal multi-fases para el transporte de un fluido así como procedimiento para la reparación de la misma
JP2020020338A (ja) * 2018-07-18 2020-02-06 サンデン・オートモーティブクライメイトシステム株式会社 送風機

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5073208A (fr) * 1973-10-24 1975-06-17
JPH04269399A (ja) * 1991-01-18 1992-09-25 John T Sullivan 送風機のハウジング
JP2007270631A (ja) * 2006-03-30 2007-10-18 Japan Servo Co Ltd 遠心ファン
WO2011148578A1 (fr) * 2010-05-26 2011-12-01 株式会社ヴァレオジャパン Unité de ventilation pour véhicule

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020241095A1 (fr) * 2018-07-18 2020-12-03 サンデン・オートモーティブクライメイトシステム株式会社 Soufflante

Also Published As

Publication number Publication date
CN112400066A (zh) 2021-02-23
WO2020241095A1 (fr) 2020-12-03
CN112400066B (zh) 2022-09-27
JP2020020338A (ja) 2020-02-06

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