EP1934483B1 - Roue de ventilateur - Google Patents

Roue de ventilateur Download PDF

Info

Publication number
EP1934483B1
EP1934483B1 EP07788146A EP07788146A EP1934483B1 EP 1934483 B1 EP1934483 B1 EP 1934483B1 EP 07788146 A EP07788146 A EP 07788146A EP 07788146 A EP07788146 A EP 07788146A EP 1934483 B1 EP1934483 B1 EP 1934483B1
Authority
EP
European Patent Office
Prior art keywords
blades
hub
ventilator
mounting flanges
fan
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
EP07788146A
Other languages
German (de)
English (en)
Other versions
EP1934483A1 (fr
Inventor
Dieter Best
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.)
Ebm Papst Mulfingen GmbH and Co KG
Original Assignee
Ebm Papst Mulfingen GmbH and Co KG
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 Ebm Papst Mulfingen GmbH and Co KG filed Critical Ebm Papst Mulfingen GmbH and Co KG
Publication of EP1934483A1 publication Critical patent/EP1934483A1/fr
Application granted granted Critical
Publication of EP1934483B1 publication Critical patent/EP1934483B1/fr
Active legal-status Critical Current
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
    • 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
    • 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
    • F04D29/34—Blade mountings

Definitions

  • the present invention relates to a fan wheel consisting of a hub, on the periphery of mounting flanges for releasably securing fan blades are arranged.
  • Such a fan is, for example, from the DE 39 41 691 C2 known.
  • the mounting flanges are cast directly on the hub, which also forms the rotor of a drive motor designed as an external rotor motor.
  • the blades of the fan wheel are screwed to these mounting flanges. This requires the preparation of expensive casting tools when fan wheels are to be manufactured with differing number of blades or position of the blades.
  • a welded wing hub which consists of a polygonal wreathless hub disc, are welded to the perpendicular to their side surfaces circular plates, to be mounted in the same number as wings.
  • This welded wing hub is to serve for the production of the axial fan or an axial fan.
  • a fan wheel which has a hollow cylindrical hub, on the periphery of mounting flanges for releasably securing fan blades are arranged.
  • Each fan blade is clamped between a mounting flange formed as an injection molded part and an additional connecting flange formed as an injection molded part, wherein the two flanges are fastened to one another by means of a screw connection.
  • the present invention is based on the object, starting from the known fan wheel to improve this so that a production with any number of blades and position without expensive special tools is possible, so that a large manufacturing variation width is achieved at low production costs.
  • a fan wheel in which the hollow cylindrical hub is made of steel and the mounting flanges are made of steel and are connected to the hub by welding, and the mounting flanges are made of sheet steel as a molded or bent parts.
  • the invention is based on the recognition that, in contrast to large-area metal blades, the mounting flanges can weld easily. Because these have a relatively small mass and are compact. In contrast, when welding the fan blades as a whole, there is the problem of accurate adjustment already in the welding process and also a delay problem due to the welding heat. In addition, due to the large blade surface, there is a great deal of heat dissipation during the welding process, which is why high welding temperatures are required, which in turn increases the problems of distortion.
  • An inventive fan wheel is advantageously driven by a DC motor with bell rotor, wherein the bell rotor according to the invention forms the hub of the fan wheel. Since the mounting flanges are made of sheet steel as molded parts, a series production of mounting flanges by punching and bending is possible. However, production by a laser cutting method is also possible.
  • the wall thickness of the fastening flanges is greater, at least in the region of its contact section, than that of the wheel blades to be fastened.
  • a fan according to the invention from a hollow cylindrical hub 1, on the periphery of mounting flanges 2 are attached. Fan blades 3 are in turn attached to these mounting flanges 2.
  • the hub 1 consists of a hollow cylindrical bell, which is closed on one side and the front side has a hollow cylindrical rotor bushing 4 for receiving the rotor shaft in its interior.
  • the hub 1 is made of steel and can form the rotor of a DC motor.
  • mounting flanges 2 are circumferentially arranged substantially equidistantly and to these mounting flanges 2, the rotor blades 3 are screwed by means of a fastening screw 6.
  • the mounting flanges 2 consist according to the invention of steel or steel sheet. As a result, a simple and cost-effective production of the mounting flanges 2 is possible.
  • the mounting flanges 2 are circumferentially welded to the hub 1.
  • the mounting flanges 2 can also be conveniently prepared as stampings or stamped and bent parts. It may also be appropriate to cut them out by a laser cutting process.
  • the mounting flanges 2 are relatively compact, wherein the thickness of the mounting flanges 2 may be greater than the thickness of the fan blades to be fastened 3.
  • known welding methods for example Mac, laser or laser with additional material be applied.
  • the dimensions of a fan wheel according to the invention are, for example, 200 mm diameter of the hub 1 and, for example, 800 mm diameter of the entire fan wheel. Due to the inventive design, the size and orientation of the blades 3 can be varied as desired. By the invention, the number of blades or the mounting height can be varied much easier.
  • an inventive mounting flange 2 consists of a sheet steel stamped and bent part, which consists of a central contact portion 7, each with its longitudinal sides 8 bent stiffening webs 9.
  • the stiffening webs 9 have a substantially triangular shape, with the stiffening webs 9 tapering towards the free end of the abutment sections 7.
  • the result is a cross-sectionally U-shaped design of the mounting flanges 2, in particular in the lower mounting area, where they are welded to the hub 1.
  • the mounting flanges 2 are arranged on the circumference of the hub 1 so that the mounting flanges 2 protrude radially and extend on the hub wall 5 obliquely from the front to the back of the hub 1.
  • the size and orientation of the mounting flanges 2 can be varied according to the particular requirements of the individual fan wheel. Since both the hub 1 and the mounting flanges 2 are made of steel, a simple welding of the two parts is possible with conventional welding.
  • the fan blades 3 are fastened to the fastening flanges 2 in the region of their contact sections 7 on their contact side pointing in the direction of the front side of the hub 1. This attachment takes place by means of the fastening screw 6.
  • this screw 6 is screwed into an internal thread opening 10 of the respective fastening flange 2. How out Fig. 4 it can be seen, the threaded opening 10 is formed by a pointing in the direction of the rear hollow cylindrical projection 11.
  • the embodiment according to the invention makes it possible for fan blades 3 made of a very wide variety of materials to be fastened to the fastening flanges 2 can, for example, fan blades 3 made of metal or plastic. Also, blades 3 of die-cast or of corresponding metal material punched blades 3 can be used, these different blades 3 are all characterized by the same fastening. Also, it is possible by the invention to build blades 3 of larger engines with slow-rotating axial fans on smaller diameter engines, since the same type of fastening can be provided regardless of the blade size.

Landscapes

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

Claims (6)

  1. Roue de ventilateur, constituée d'un moyeu cylindrique creux (1), sur la périphérie duquel des collerettes de fixation (2) sont disposées, pour une fixation amovible de pales de ventilateur (3), caractérisée en ce que le moyeu cylindrique creux (1) est fabriqué à partir d'acier, et que les collerettes de fixation (2) sont constituées d'acier et sont assemblées au moyeu (1) par soudage, et sont réalisées en tôle d'acier, sous forme de pièces formées ou formées-pliées.
  2. Roue de ventilateur selon la revendication 1, caractérisée en ce que les collerettes de fixation (2) sont constituées d'une section d'appui plane (7) et de traverses de rigidification (9), bordées sur les deux côtés longitudinaux opposés (8) de cette section.
  3. Roue de ventilateur selon la revendication 2, caractérisée en ce qu'au moins une ouverture taraudée (10), ainsi que des moyens d'orientation (12, 13, 14, 15) destinés à la fixation des pales de ventilateur (3), sont réalisés dans la section d'appui (7).
  4. Roue de ventilateur selon la revendication 3, caractérisée en ce que la tubulure taraudée (10) est réalisée dans une tubulure cylindrique creuse (11).
  5. Roue de ventilateur selon l'une des revendications 1 à 4, caractérisée en ce que l'épaisseur de paroi des collerettes de fixation (2) est, au moins dans la zone de la zone d'appui avec le moyeu (1), plus grande que l'épaisseur des pales de ventilateur (3).
  6. Roue de ventilateur selon l'une des revendications 1 à 5, caractérisée en ce que les pales de ventilateur (3) sont constituées de métal, de plastique ou d'un matériau coulé.
EP07788146A 2006-08-03 2007-08-01 Roue de ventilateur Active EP1934483B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006011899U DE202006011899U1 (de) 2006-08-03 2006-08-03 Ventilatorrad
PCT/EP2007/057981 WO2008015245A1 (fr) 2006-08-03 2007-08-01 Roue de ventilateur

Publications (2)

Publication Number Publication Date
EP1934483A1 EP1934483A1 (fr) 2008-06-25
EP1934483B1 true EP1934483B1 (fr) 2012-11-14

Family

ID=37771212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07788146A Active EP1934483B1 (fr) 2006-08-03 2007-08-01 Roue de ventilateur

Country Status (8)

Country Link
US (1) US8128372B2 (fr)
EP (1) EP1934483B1 (fr)
CN (1) CN101479484B (fr)
DE (1) DE202006011899U1 (fr)
DK (1) DK1934483T3 (fr)
ES (1) ES2395489T3 (fr)
PT (1) PT1934483E (fr)
WO (1) WO2008015245A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0821823D0 (en) * 2008-11-28 2009-01-07 Truflo Air Movement Ltd Fan assembly
CN201439764U (zh) * 2009-07-27 2010-04-21 中山大洋电机股份有限公司 一种外转子轴流风扇
US10132321B2 (en) * 2009-07-27 2018-11-20 Zhongshan Broad-Ocean Motor Co., Ltd. Fan system having an external rotor
WO2011092270A2 (fr) 2010-02-01 2011-08-04 Akzo Nobel Chemicals International B.V. Procédé pour la préparation d'épichlorhydrine à partir du dichlorhydrine
CN102312858B (zh) * 2011-08-25 2013-03-20 张家港市东丰特种风机有限公司 轴流式热风循环风机的叶轮
USD728090S1 (en) * 2012-10-11 2015-04-28 Ebm-Papst Mulfingen Gmbh & Co. Kg Electric fan
USD750211S1 (en) * 2014-02-27 2016-02-23 Mitsubishi Electric Corporation Propeller fan
CN104265682A (zh) * 2014-09-03 2015-01-07 潘树东 可拆卸式冷风扇
CN104235066A (zh) * 2014-10-10 2014-12-24 江苏富丽华通用设备有限公司 一种外转子轴流风机
USD804647S1 (en) * 2016-02-02 2017-12-05 Delta Electronics, Inc. Fan blade
US10400780B2 (en) * 2016-03-08 2019-09-03 Asia Vital Components Co., Ltd. Structure of fan blades
US10100840B2 (en) * 2016-03-08 2018-10-16 Asia Vital Components Co., Ltd. Fan wheel structure
US10480525B2 (en) * 2016-03-08 2019-11-19 Asia Vital Components Co., Ltd. Fan blade with improved structure
GB2551719A (en) * 2016-06-27 2018-01-03 Truflo Air Movement Ltd Improvements in and relating to a fan assembly
USD839406S1 (en) * 2017-03-23 2019-01-29 Ebm-Papst Mulfingen Gmbh & Co. Kg Connecting element for fan blades
CN107489647A (zh) * 2017-09-19 2017-12-19 张家港保税区创典炉窑通风设备有限公司 一种轴流风机叶轮
CN107482852A (zh) * 2017-10-16 2017-12-15 朱玉洪 一种电动机自发电滑环散热装置
CN108953224A (zh) * 2018-07-20 2018-12-07 安吉元融仪器仪表检测有限公司 风扇
TWI679830B (zh) * 2019-01-04 2019-12-11 建準電機工業股份有限公司 馬達及具有該馬達之吊扇
USD980409S1 (en) * 2019-03-07 2023-03-07 Ziehl-Abegg Se Fan wheel
USD938010S1 (en) 2019-12-10 2021-12-07 Regal Beloit America, Inc. Fan hub
USD952830S1 (en) 2019-12-10 2022-05-24 Regal Beloit America, Inc. Fan shroud
USD938011S1 (en) 2019-12-10 2021-12-07 Regal Beloit America, Inc. Fan blade
US11859634B2 (en) 2019-12-10 2024-01-02 Regal Beloit America, Inc. Fan hub configuration for an electric motor assembly
USD938009S1 (en) 2019-12-10 2021-12-07 Regal Beloit America, Inc. Fan hub
US11555508B2 (en) 2019-12-10 2023-01-17 Regal Beloit America, Inc. Fan shroud for an electric motor assembly
US11371517B2 (en) 2019-12-10 2022-06-28 Regal Beloit America, Inc. Hub inlet surface for an electric motor assembly
CN111231327A (zh) * 2020-01-10 2020-06-05 中铁第十八工程局涿州水泵厂 一种风机叶轮的生产工艺
DE102020122318A1 (de) * 2020-08-26 2022-03-03 Ebm-Papst Mulfingen Gmbh & Co. Kg Lüfterradsystem zur Zusammenstellung und Herstellung eines Lüfterrades
USD1043943S1 (en) * 2021-06-25 2024-09-24 Transportation Ip Holdings, Llc Fan

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DE602960C (de) 1933-03-17 1934-09-19 Escher Wyss Maschf Ag Geschweisste Fluegelnabe fuer Kreiselmaschinen mit mindestens drei Schaufeln fuer axialen Durchfluss
US4636142A (en) * 1984-05-11 1987-01-13 Household Manufacturing, Inc. Rotating fan apparatus
DE3941691A1 (de) 1989-12-18 1990-07-12 Ziehl Abegg Gmbh & Co Kg Ventilatorlaufrad mit aussenlaeuferantrieb und einzeln am rotor befestigten schaufeln
CN2157385Y (zh) * 1993-04-06 1994-02-23 苏州市吴县城南化工设备厂 钢板圈制成型高颈法兰
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US6692233B2 (en) * 2002-06-26 2004-02-17 Hoo Cheung Group Ltd. Lockable quick-release blade assembly for ceiling fans
FR2866930B1 (fr) 2004-03-01 2008-02-15 Leroy Somer Moteurs Ventilateur comportant au moins une pale fixee par bride et contre-bride
CN2705640Y (zh) * 2004-06-08 2005-06-22 昌达电器工业股份有限公司 组合立式风扇叶轮
DE202004010088U1 (de) * 2004-06-25 2004-09-09 Ebm-Papst Mulfingen Gmbh & Co. Kg Laufrad, insbesondere für einen Axialventilator

Also Published As

Publication number Publication date
US20100003140A1 (en) 2010-01-07
WO2008015245A1 (fr) 2008-02-07
ES2395489T3 (es) 2013-02-13
PT1934483E (pt) 2012-12-04
CN101479484A (zh) 2009-07-08
DE202006011899U1 (de) 2007-12-13
CN101479484B (zh) 2013-03-20
US8128372B2 (en) 2012-03-06
EP1934483A1 (fr) 2008-06-25
DK1934483T3 (da) 2013-03-04

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