EP0727582A1 - Roue ventilateur et son procédé de fabrication - Google Patents

Roue ventilateur et son procédé de fabrication Download PDF

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Publication number
EP0727582A1
EP0727582A1 EP95118978A EP95118978A EP0727582A1 EP 0727582 A1 EP0727582 A1 EP 0727582A1 EP 95118978 A EP95118978 A EP 95118978A EP 95118978 A EP95118978 A EP 95118978A EP 0727582 A1 EP0727582 A1 EP 0727582A1
Authority
EP
European Patent Office
Prior art keywords
sections
fan wheel
base plate
wheel according
central
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.)
Granted
Application number
EP95118978A
Other languages
German (de)
English (en)
Other versions
EP0727582B1 (fr
Inventor
Johann Klement
Peter Kellermann
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.)
BSH Hausgeraete GmbH
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0727582A1 publication Critical patent/EP0727582A1/fr
Application granted granted Critical
Publication of EP0727582B1 publication Critical patent/EP0727582B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D29/38—Blades
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S416/00—Fluid reaction surfaces, i.e. impellers
    • Y10S416/03—Sheet metal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/49329—Centrifugal blower or fan

Definitions

  • the invention relates to a fan wheel according to the preamble of claims 1 and 2 and to a method for producing the fan wheel.
  • annular bead is embossed in the central central region around the axis opening, that is to say axially advanced, from where radial radial beads emanate into the Extend the range of radial lugs.
  • the radial beads run asymmetrically to the contour of the approaches mentioned.
  • These fan wheels are made of thin metallic sheet material. Experiments, particularly in the high temperature range, have shown that the radial projections deform more or less after a relatively short period of operation, with the result that the fan power drops and disturbing running noises occur.
  • the invention has for its object to improve the fan wheel so that an exact and constant geometry and balancing position of the fan wheel is maintained even in the case of strongly changing temperature conditions.
  • the axially advanced sections which are preferably in the form of embossed or shaped embossments, give the base plate such dimensional stability and heat resistance even under extreme thermal loads, for example up to 500 ° C. when used in pyrolytically self-cleaning ovens, so that there is no change in the geometric relationships, the balanced state is retained and a consistently low running noise is achieved.
  • thermal expansion of the material cannot lead to partial distortions.
  • the air wheel according to the invention is characterized by low manufacturing costs. the invention is explained below with reference to an embodiment shown in the drawing.
  • the fan wheel shown in FIG. 1 has a central central region 1, illustrated by a circle, in the center of which there is an out-of-round axis opening 2 for mounting on the output shaft of a drive motor, not shown.
  • the central central region 1 is adjoined by wing-like projections 3 projecting radially beyond the central region, of which a total of seven projections 3 are provided.
  • the axes of symmetry of the lugs 3 do not extend exactly radially but slightly inclined to the associated radial.
  • the lugs 3 taper slightly towards the outside and have blades 4 which are bent at right angles at each lateral boundary, as can be seen from FIGS. 2 and 3.
  • the central area 1 and the lugs 3 are part of a one-piece base plate 5 made of thin, for example, metal sheet material, from which the blades 4 are bent at right angles.
  • the circle 6 shown in dashed lines illustrates the outer circumference of the fan wheel.
  • Section 7 is designed in the form of an annular, flat shape embossing, which is followed directly and seamlessly by 3 star-shaped or radiating sections 9, depending on the number of approaches. As shown in FIG. 1, these radial sections 9 run through the lugs 3 essentially symmetrically to the outer contour of these lugs 3.
  • the contouring of the sections 9 starting from the central region follows the outer contour of the base plate 8 to form the aforementioned edge surfaces 10 of constant width.
  • the axially advanced sections 9, which are designed as shaped embossings have essentially flat surfaces 11, which merge into the base plane 8 with smooth, largely rounded and therefore flow-favorable transitions 12.
  • the radial sections 9 taper outwards corresponding to the tapered contour of the wing-like lugs 3. As can be seen from FIG.
  • the embossing depth h in the area of the radiation-like sections 9 also decreases. Due to the fact that the lugs 3 do not run exactly radially to the center of the fan wheel, the foot areas of the radial approaches 3 asymmetrical courses of the round, outer contour edges and thus uneven circular sections in these foot areas. In order to create approximately symmetrical or identical geometric relationships in these areas as well, it is provided that in the transition areas between the central annular area and the radial areas, the axially extended embossing surfaces 11 are equipped with additionally axially advanced crowns 13 of circular basic contour and radius R. are. These crowns 13 can also have a smaller radius R, as indicated by a dash-dotted line in FIG. 2.
  • the sections 7 and 9 which merge seamlessly into one another are axially advanced in the embossing process and that the star-shaped or radial contour of the base plate 5 is then cut or punched free and then or in a common stamping and embossing process the blades 4 are bent relative to the base plate 5. In this way, embossed material stresses in the edge surfaces 10 in the base plane 8 are avoided.
  • the surfaces 11 serve as the starting plane for the embossing process, compared to which the areas surrounding the embossments, in particular the edge surfaces 10 and Central circular surface 14 in the center of the fan wheel can be axially advanced by stamping.
  • the fan wheel can then be provided with a surface coating in a known manner.
  • the advantages resulting from the configuration of the fan wheel according to the invention are particularly evident when using metallic material which is deformed by embossing.
  • other materials or shapes for the fan wheel are also conceivable, e.g. the use of plastic, in which case suitable shaping processes are to be used to create the shape embossing to be understood as a spatial shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Braking Arrangements (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
EP95118978A 1995-01-19 1995-12-01 Roue ventilateur et son procédé de fabrication Expired - Lifetime EP0727582B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19501533 1995-01-19
DE19501533A DE19501533C3 (de) 1995-01-19 1995-01-19 Lüfterrad und Verfahren zur Herstellung desselben

Publications (2)

Publication Number Publication Date
EP0727582A1 true EP0727582A1 (fr) 1996-08-21
EP0727582B1 EP0727582B1 (fr) 2002-03-27

Family

ID=7751862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95118978A Expired - Lifetime EP0727582B1 (fr) 1995-01-19 1995-12-01 Roue ventilateur et son procédé de fabrication

Country Status (11)

Country Link
US (2) US5685695A (fr)
EP (1) EP0727582B1 (fr)
KR (1) KR960029635A (fr)
CN (1) CN1133945A (fr)
AT (1) ATE215182T1 (fr)
CZ (1) CZ288845B6 (fr)
DE (2) DE19501533C3 (fr)
ES (1) ES2174889T3 (fr)
HU (1) HU215829B (fr)
PL (1) PL179426B1 (fr)
TR (1) TR199501723A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013215844A1 (de) * 2013-08-12 2015-02-12 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Herstellen eines Lüfterrads für ein Haushaltsgerät und Lüfterrad für ein Haushaltsgerät

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1061417C (zh) * 1997-08-19 2001-01-31 吴凤清 自然风电风扇
US6889686B2 (en) * 2001-12-05 2005-05-10 Thomas & Betts International, Inc. One shot heat exchanger burner
CN100359184C (zh) * 2002-10-04 2008-01-02 株式会社T.Rad 带环风扇及其制造方法
US6881035B1 (en) * 2003-01-02 2005-04-19 Fasco Industries, Inc. Draft inducer having single piece metal impeller and improved housing
US7726386B2 (en) 2005-01-14 2010-06-01 Thomas & Betts International, Inc. Burner port shield
DE102005046056A1 (de) * 2005-09-27 2007-03-29 Robert Bosch Gmbh Lüfterrad zur Förderung von Kühlluft für eine elektrische Maschine
CN100427766C (zh) * 2005-12-20 2008-10-22 建准电机工业股份有限公司 薄型风扇
CN100432447C (zh) * 2005-12-20 2008-11-12 建准电机工业股份有限公司 超薄风扇
TW200732565A (en) * 2006-02-21 2007-09-01 Sunonwealth Electr Mach Ind Co The structure of a small blower
CN101131162B (zh) * 2006-08-25 2012-11-28 上海思考电子有限公司 无电刷风扇马达的叶轮组件
CN201301834Y (zh) * 2008-11-27 2009-09-02 中山大洋电机股份有限公司 一种用镀搪瓷表面处理方式制造的引风机系统及其外壳和风轮
CN101871470B (zh) * 2009-04-21 2013-02-13 深圳兴奇宏科技有限公司 扇轮结构
US8881396B2 (en) 2011-02-07 2014-11-11 Revcor, Inc. Method of manufacturing a fan assembly
CN104226797B (zh) * 2013-06-20 2017-12-22 富瑞精密组件（昆山）有限公司 风扇转子的制造方法
CN103742430B (zh) * 2013-12-19 2015-05-27 浙江双双制冷设备有限公司 一种离心风机用电机组件
CN105443434B (zh) * 2014-09-30 2017-12-22 富瑞精密组件（昆山）有限公司 转子、转子的制作方法以及采用该转子的散热风扇
JP6433587B2 (ja) * 2015-05-27 2018-12-05 三菱電機株式会社 車両用交流発電機の回転子
CN106541010A (zh) * 2016-10-27 2017-03-29 安徽新荣钢构有限公司 一种叶轮快速冲压装置
US11274677B2 (en) 2018-10-25 2022-03-15 Revcor, Inc. Blower assembly

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1574527A (fr) * 1967-07-22 1969-07-11
DE1956298A1 (de) * 1968-11-22 1970-09-17 Lucas Industries Ltd Dynamoelektrische Maschine
FR2318330A1 (fr) * 1975-07-17 1977-02-11 Bosch Gmbh Robert Roue de ventilateur
DE2845739A1 (de) * 1978-10-20 1980-04-30 Mulfingen Elektrobau Ebm Luefterrad fuer heissluftoefen
GB2057586A (en) * 1979-09-06 1981-04-01 Bosch Gmbh Robert Fan wheel
DE4102321A1 (de) * 1991-01-26 1992-07-30 Bosch Gmbh Robert Luefterrad fuer drehstromgeneratoren

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2176325A (en) * 1937-08-04 1939-10-17 Walter H Bretzlaff Fluid impelling means
US2465671A (en) * 1944-05-10 1949-03-29 Power Jets Res & Dev Ltd Centrifugal compressor, pump, and the like
US2831630A (en) * 1955-01-21 1958-04-22 Perry John Fan
US3301472A (en) * 1965-01-14 1967-01-31 American Radiator & Standard Blower
US3376057A (en) * 1966-03-03 1968-04-02 United Carr Inc One-piece synthetic resinous bushing
US3521973A (en) * 1968-08-16 1970-07-28 Anpol Research Corp Fan construction
US3638470A (en) * 1969-06-06 1972-02-01 Gen Electric Method of making a fan
US3737966A (en) * 1971-01-13 1973-06-12 Lau Inc Method of constructing a bladed blower wheel
US3914069A (en) * 1973-06-06 1975-10-21 Fort Worth Pressed Steel Corp Axial flow fan having fully streamlining flexible blades
US3951611A (en) * 1974-11-14 1976-04-20 Morrill Wayne J Blank for fan blade
US4174924A (en) * 1975-10-21 1979-11-20 Wallace Murray Corporation Sheet metal fan assembly
DE4314846C2 (de) * 1993-05-05 1998-01-29 Hettich Andreas Fa Rotor für Schwenkbecherzentrifugen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1574527A (fr) * 1967-07-22 1969-07-11
DE1956298A1 (de) * 1968-11-22 1970-09-17 Lucas Industries Ltd Dynamoelektrische Maschine
FR2318330A1 (fr) * 1975-07-17 1977-02-11 Bosch Gmbh Robert Roue de ventilateur
DE2845739A1 (de) * 1978-10-20 1980-04-30 Mulfingen Elektrobau Ebm Luefterrad fuer heissluftoefen
GB2057586A (en) * 1979-09-06 1981-04-01 Bosch Gmbh Robert Fan wheel
DE4102321A1 (de) * 1991-01-26 1992-07-30 Bosch Gmbh Robert Luefterrad fuer drehstromgeneratoren

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013215844A1 (de) * 2013-08-12 2015-02-12 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Herstellen eines Lüfterrads für ein Haushaltsgerät und Lüfterrad für ein Haushaltsgerät

Also Published As

Publication number Publication date
DE19501533C3 (de) 2000-01-13
DE19501533C2 (de) 1996-11-07
ES2174889T3 (es) 2002-11-16
HU215829B (hu) 1999-02-01
ATE215182T1 (de) 2002-04-15
CZ288845B6 (cs) 2001-09-12
US5873164A (en) 1999-02-23
PL312345A1 (en) 1996-07-22
DE19501533A1 (de) 1996-07-25
PL179426B1 (pl) 2000-09-29
DE59510128D1 (de) 2002-05-02
KR960029635A (ko) 1996-08-17
EP0727582B1 (fr) 2002-03-27
TR199501723A2 (tr) 1996-08-21
HU9503690D0 (en) 1996-02-28
US5685695A (en) 1997-11-11
HUT73476A (en) 1996-08-28
CZ15496A3 (en) 1996-08-14
CN1133945A (zh) 1996-10-23

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