EP2459883B1 - Géométrie de guidage pour roues semi-axiales de ventilateur - Google Patents

Géométrie de guidage pour roues semi-axiales de ventilateur Download PDF

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Publication number
EP2459883B1
EP2459883B1 EP10721026.2A EP10721026A EP2459883B1 EP 2459883 B1 EP2459883 B1 EP 2459883B1 EP 10721026 A EP10721026 A EP 10721026A EP 2459883 B1 EP2459883 B1 EP 2459883B1
Authority
EP
European Patent Office
Prior art keywords
fan
blades
suction
exhaust
vanes
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
EP10721026.2A
Other languages
German (de)
English (en)
Other versions
EP2459883A1 (fr
Inventor
Andreas Schiel
Matthias Ludwig
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2459883A1 publication Critical patent/EP2459883A1/fr
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Publication of EP2459883B1 publication Critical patent/EP2459883B1/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
    • 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
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • 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
    • 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
    • F04D29/30—Vanes

Definitions

  • the invention relates to a fan with a fan wheel for use in a motor vehicle, as defined in the Oberbegniff of claim 1.
  • a fan is for example from the US 2005/0095126 known.
  • a semi-axial fan wheel represents a combination of an axial and a radial fan.
  • An axial section of the fan wheel sucks the air to be conveyed in the manner of a propeller from a direction parallel to the axis of rotation.
  • a radial section of the fan wheel flows from the already sucked air in the manner of a centrifuge in the radial direction.
  • a deflection element In order to redirect air which has passed through the axial section of a semi-axial fan wheel to the radial section, a deflection element is provided in the area between the two sections.
  • the deflector is usually attached to a fan motor and may, for example, have a tapered shape.
  • the radially extending outflow vanes of the axial portion of the semi-axial impeller do not abut against the fixed deflector to minimize frictional losses and noise. Due to the consequent gap between the ends of the discharge vanes and the deflector escapes a certain proportion of the sucked air, instead of leaving only between Abströmschaufeln through the fan in the radial direction. The efficiency of such a semi-axial fan wheel therefore remains below a maximum possible.
  • the invention is therefore based on the object to provide a fan that overcomes this disadvantage and beyond is easy to manufacture.
  • the deflection element follows the rotational movement of the fan wheel with respect to a fan motor.
  • the connection of the baffle with at least one outflow vane makes it possible to eliminate a gap between the outflow vane and the baffle and thus to cause the outflowed air to impart the desired direction and velocity as it flows off.
  • several or all outflow vanes may be connected to the deflector, so that all outflowed air has to pass between outflow vanes.
  • At least one of the suction vanes is formed integrally with a discharge vane.
  • the combined suction and discharge blades weep an augabschnitt and a discharge section.
  • One of the boundary surfaces of the combined combined suction and discharge vane may partially or fully abut the deflector.
  • the number of exhaust vanes may also be larger or smaller than the number of suction vanes.
  • additional discrete exhaust vanes may be formed in the fan in addition to combined suction and exhaust vanes.
  • the fan wheel includes twice as many exhaust vanes like combined air blades.
  • the number of suction vanes may exceed the number of outflow vanes.
  • the deflector may be connected by a mating connection with the discharge vane. This is advantageous above all in the production of fan wheels in large numbers, where a positive or non-positive connection between the deflection element and the outflow blades is to be created by a simple operation.
  • the mating connection can have, for example, pins and corresponding recesses.
  • the deflecting element may have a peripheral edge into which a plurality of outflow blades engage.
  • positive or non-positive connections between the deflector and the discharge vanes possible, for example, latching, gluing, riveting, screwing, welding, soldering, wedging or caulking.
  • the suction vanes and the discharge vanes form an integral element of the fan wheel.
  • a one-piece element additionally has a hub and stiffening elements which follow a circumference or a circumferential contour of the fan wheel.
  • the stiffening element comprises a hollow cylindrical portion which defines the suction vanes in a radially outward direction.
  • the one-piece element may be free of undercuts with respect to a rotationally symmetrical to the axis of rotation partition surface.
  • the one-piece element can be produced by casting or injection molding in a permanent mold which is divisible along the dividing surface, so that the one-piece element can be demolded from the permanent mold.
  • the division surface may be a portion of a plane perpendicular to the axis of rotation.
  • the one-piece element can be advantageously designed so that neither suction vanes nor outflow vanes during removal from the permanent mold are a hindrance.
  • the fan wheel stiffening structures such as the hub or the stiffening surface, are formed so that they do not hinder the demolding. As a result, can be used for the production of large numbers of fan wheels, a permanent mold that includes only two parts and no slide.
  • the fan may further include a fan motor with an axis supporting the fan, wherein a drive torque is transmitted by means of the deflector from the fan motor to the fan.
  • the fan may be sprayed, for example, to the axis or a hub-side recording of the axis.
  • the axis may be connected to a stator or a rotor of the fan motor, wherein the axis may be rotatably mounted on one side or on two sides.
  • the axle may be configured to transmit shear, bending, tensile and / or shear forces between the fan and the stator or rotor of the fan motor without being involved in transmitting the drive torque from the fan motor to the fan.
  • the suction vanes can be shaped optimized for flow efficiency without being influenced by strength requirements.
  • the fan motor may comprise a non-positively connected to the deflection outer rotor (external rotor). Due to the design of the external rotor, the drive torque can be introduced in a relatively large radial distance from the axis of rotation in the deflection, where the leverage forces are low, whereby a structural load on the deflection is kept low.
  • a stator enclosed by the outer rotor of the fan motor optimally fill a space on the side facing away from the fan of the deflector, so that the fan can be constructed very compact.
  • the outer rotor may comprise one or more permanent magnets. Due to the relatively large mass of the permanent magnet at a relatively large distance from the axis of rotation of the impeller, the rotational inertia of the impeller is high, whereby the rotation of the impeller is damped when driven by the fan motor and thus more uniform. So noise developments in the drive of the fan wheel can be minimized by alternately activated windings of the stator.
  • a motor vehicle includes a fan with the fan described above.
  • FIG. 1 shows a schematic representation of a motor vehicle fan system 100.
  • a motor vehicle 110 includes an intake manifold 120, a fan 130 and a distribution wing 140.
  • the fan 130 includes a fan 150 and a fan motor 160.
  • optional elements of the automotive fan system 100 such as filters, flaps, valves, heat exchangers, capacitors and other elements that are not significant here.
  • the fan motor 160 rotates the fan wheel 150, so that air is drawn from an outside of the motor vehicle 110 through the intake tract 120 into the fan wheel 150 and then conveyed through the distribution wing 140 onto the inside of the motor vehicle 140.
  • the intake tract 120 and the distribution tract 140 are embodied integrated in a common tract.
  • the fan 130 may be insertable into the intake tract 120, the distribution tract 140 or the common tract in the manner of a cartridge.
  • the tract may comprise an element which converts a radial flow direction of air discharged from the fan wheel 150 in a linear flow direction, for example a pressure-increasing spiral, which also compresses the streamed air.
  • FIG. 2 shows the fan 130 off FIG. 1 in a side sectional view.
  • the fan 130 comprises the fan wheel 150 and the fan motor 160, which are connected to each other by means of an axis 300.
  • the impeller 150 includes suction vanes 210 having entry edges 220 and discharge vanes 230 having trailing edges 240.
  • the suction vanes 210 extend radially outward from a hub 250 of the impeller to a stiffening surface 260 of the impeller 150 following a portion of the circumferential contour of the impeller 150.
  • the suction vanes 210 are formed such that air is sucked in from the bottom in the axial direction when the fan wheel 150 rotates.
  • the suction vanes 210 merge into outflow vanes 230 which are arranged along the stiffening surface 260 in the direction of rotation.
  • the exhaust vanes 230 when the fan 150 is rotated, accelerate air that has passed the suction vanes 210 in the axial direction in the circumferential direction, so that the accelerated air due to a centrifugal effect in the radial direction at the trailing edge 240 is discharged.
  • the outflow blades 230 may be bent in a crescent shape for improved outflow.
  • the integrally formed suction / discharge vanes 210, 230 border on top of a deflection element 270.
  • the deflection element 270 is annular in the region of the hub 250 and is connected by means of a fit connection to the blades 210, 230 or to the hub 250.
  • the two outflow blades 230 visible in this view carry elongated holes 290 in the region of their trailing edges 240, fitted into the corresponding pins 280 of the deflector 270, whereby a frictional connection between the deflector 270 and the outflow blades 280 is produced.
  • the fan motor 160 includes a stator 310 and an outer rotor 320 having a permanent magnet 330.
  • the outer rotor 320 is integrally formed with the deflector 270 and receives the permanent magnet 330.
  • the permanent magnet 330 may be fitted, pressed and / or glued into the outer rotor 320.
  • a torque existing between the stator 310 and the permanent magnet 330 is introduced by means of the outer rotor 320 directly to the deflection element 270 and from there into the discharge vanes 230, so that the fan wheel 150 is driven around the stator 160.
  • the stator 310 can be connected in a rotationally stable manner to a surrounding structure in order to fasten the fan 130, for example in the intake tract 120 and / or in the distribution tract 140.
  • the axis 300 is rotatably connected to the hub 250 and the deflector 270. This connection can be made for example by welding, gluing, pressing, locking or by a mating connection; the hub 250 may also be injection-molded or cast on the axle 300.
  • the axis 300 is rotatably mounted on the stator 310 of the fan motor 160.
  • the axis 300 ensures a fixation of the fan motor 160 with respect to the fan wheel 150 in the axial direction.
  • the axle 300 transmits tilting, bending, and shearing forces between the fan 150 and the stator 310 of the fan motor 160. However, due to the rotatable support in the stator 310, the axle 300 does not transmit torque, and particularly no drive torque, from the fan motor 160 to the fan 150.
  • FIG. 3 shows a one-piece element 340 as part of the fan wheel 150 FIG. 2
  • Element 340 includes hub 250, stiffening surface 260, and a number of exhaust vanes 230 and a number of suction vanes 210, only a portion of which is visible in the selected illustration.
  • the suction vanes 210 merge into a part of the outflow vanes 230; the integrated suction / outflow vanes 210/230 extend between the hub 250 and the stiffening surface 260.
  • a further outflow vanes 230 is formed, which does not extend to the hub 250 in the radial direction.
  • outflow vanes 230 which are formed integrally with suction vanes 210, carry elongated holes 290 for receiving pegs 280, which act on the deflector 270 FIG. 2 are formed, for establishing a fitting connection between the deflector 270 and the outflow blades 230th
  • the one-piece element 340 is constructed such that it can easily be produced in a casting or injection molding process and then unproblematically removed from the mold or injection mold.
  • a permanent mold for manufacturing the integrated molding 240 may include upper and lower portions, wherein a separation surface between the portions may extend in a radial plane of the member 340 or at least partially follow the upper contour of the blades 210/230.
  • the deflector 270 can be made FIG. 2 be connected in a simple operation with the one-piece element 340. By the fit connection in the region of the pins 280 and slots 290 or in the region of the hub 250, the deflector 270 can be connected to the one-piece element 340 quickly and permanently.

Landscapes

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

Claims (9)

  1. Ventilateur (130) comprenant une roue de ventilateur (150), qui présente les éléments suivants :
    - des pales d'aspiration (210) pour aspirer de l'air depuis la direction axiale ;
    - des pales de sortie (230) pour accélérer l'air qui est passé par les pales d'aspiration (210), dans la direction périphérique, afin de faire sortir l'air dans la direction radiale ;
    - au moins une pale d'aspiration (210) étant réalisée d'une seule pièce avec une pale de sortie (230) ;
    - un moyeu (250) et une surface de rigidification (260),
    caractérisé en ce que
    - les pales d'aspiration/de sortie combinées (210, 230) s'étendent depuis le moyeu radialement vers l'extérieur jusqu'à la surface de rigidification (260),
    un élément de déviation (270) pour dévier l'air depuis une région d'action des pales d'aspiration (210) jusqu'à une région d'action des pales de sortie (230) étant prévu et l'élément de déviation (270) étant connecté par engagement par correspondance de formes et/ou par forces à au moins une pale de sortie (230).
  2. Ventilateur (130) selon la revendication 1, caractérisé en ce que les pales d'aspiration (210), les pales de sortie (230) et la surface de rigidification (260) forment un élément d'une seule pièce (340) de la roue de ventilateur (150).
  3. Ventilateur (130) selon la revendication 2, caractérisé en ce que l'élément d'une seule pièce (340) est exempt de contre-dépouille par rapport à une surface de division à symétrie radiale par rapport à l'axe de rotation.
  4. Ventilateur (130) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de déviation (270) est connecté à la pale de sortie (230) au moyen d'un ajustement serré (280, 290).
  5. Ventilateur (130) selon la revendication 4, caractérisé en ce que l'ajustement serré (280, 290) présente des tourillons (280) et des évidements (290) correspondants à ceux-ci.
  6. Ventilateur (130) selon l'une quelconque des revendications précédentes, caractérisé en ce que le ventilateur comprend un moteur de ventilateur (160) avec un axe (300) supportant la roue de ventilateur (150), un couple d'entraînement étant transmis au moyen de l'élément de déviation (270) du moteur de ventilateur (160) à la roue de ventilateur (150).
  7. Ventilateur (130) selon la revendication 6, caractérisé en ce que le moteur de ventilateur comprend un rotor extérieur (320) connecté par engagement par force à l'élément de déviation (270).
  8. Ventilateur (130) selon la revendication 7, caractérisé en ce que le rotor extérieur (320) comprend au moins un aimant permanent (330).
  9. Véhicule automobile (110), comprenant un ventilateur (130) selon l'une quelconque des revendications 1 à 8.
EP10721026.2A 2009-07-30 2010-06-01 Géométrie de guidage pour roues semi-axiales de ventilateur Active EP2459883B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009028130A DE102009028130A1 (de) 2009-07-30 2009-07-30 Führungsgeometrie für halbaxiale Lüfterräder
PCT/EP2010/057623 WO2011012351A1 (fr) 2009-07-30 2010-06-01 Géométrie de guidage pour roues semi-axiales de ventilateur

Publications (2)

Publication Number Publication Date
EP2459883A1 EP2459883A1 (fr) 2012-06-06
EP2459883B1 true EP2459883B1 (fr) 2017-01-25

Family

ID=42334036

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10721026.2A Active EP2459883B1 (fr) 2009-07-30 2010-06-01 Géométrie de guidage pour roues semi-axiales de ventilateur

Country Status (6)

Country Link
US (1) US20120189456A1 (fr)
EP (1) EP2459883B1 (fr)
JP (1) JP5709866B2 (fr)
CN (1) CN102472289A (fr)
DE (1) DE102009028130A1 (fr)
WO (1) WO2011012351A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104918687A (zh) 2013-01-14 2015-09-16 陶氏环球技术有限责任公司 使用非极性溶剂的掺合物经由界面聚合制造复合聚酰胺膜
CN108138796B (zh) * 2015-10-02 2020-06-05 株式会社Ihi 涡轮以及增压器
CN109209993B (zh) * 2018-11-09 2020-08-11 嵊州市法帝电器有限公司 一种用于集成灶具的风轮及其制造方法

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Publication number Priority date Publication date Assignee Title
GB1328082A (en) * 1970-08-24 1973-08-30 Airscrew Weyroc Ltd Fans
DE2742962A1 (de) * 1977-09-23 1979-04-05 Siemens Ag Geblaeseanordnung
DE10035404A1 (de) * 2000-07-19 2002-01-31 Map Gmbh Vorrichtung zur Zufuhr eines Atemgases
US6508627B2 (en) * 2001-05-30 2003-01-21 Lau Industries, Inc. Airfoil blade and method for its manufacture
JP3589243B2 (ja) * 2002-04-03 2004-11-17 ダイキン工業株式会社 遠心ファンロータ及びその製造方法
TWI235204B (en) * 2003-10-31 2005-07-01 Delta Electronics Inc Centrifugal fan and its housing
US7108482B2 (en) * 2004-01-23 2006-09-19 Robert Bosch Gmbh Centrifugal blower
TWI267583B (en) * 2004-06-18 2006-12-01 Delta Electronics Inc Heat-dissipating device
DE202004012015U1 (de) * 2004-07-31 2005-12-22 Ebm-Papst Landshut Gmbh Radialgebläserad
US7351031B2 (en) * 2004-11-01 2008-04-01 Sunonwealth Electric Machine Industry Co., Ltd. Centrifugal blower
DE102006057087B3 (de) * 2006-12-04 2008-06-19 Minebea Co., Ltd. Laufrad für ein Gebläse

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
CN102472289A (zh) 2012-05-23
WO2011012351A1 (fr) 2011-02-03
DE102009028130A1 (de) 2011-02-03
US20120189456A1 (en) 2012-07-26
JP5709866B2 (ja) 2015-04-30
EP2459883A1 (fr) 2012-06-06
JP2013500426A (ja) 2013-01-07

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