EP0727582B1 - Lüfterrad und Verfahren zur Herstellung desselben - Google Patents

Lüfterrad und Verfahren zur Herstellung desselben Download PDF

Info

Publication number
EP0727582B1
EP0727582B1 EP95118978A EP95118978A EP0727582B1 EP 0727582 B1 EP0727582 B1 EP 0727582B1 EP 95118978 A EP95118978 A EP 95118978A EP 95118978 A EP95118978 A EP 95118978A EP 0727582 B1 EP0727582 B1 EP 0727582B1
Authority
EP
European Patent Office
Prior art keywords
axially forwardly
fan wheel
drawn
base plate
ray
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.)
Expired - Lifetime
Application number
EP95118978A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0727582A1 (de
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
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP0727582A1 publication Critical patent/EP0727582A1/de
Application granted granted Critical
Publication of EP0727582B1 publication Critical patent/EP0727582B1/de
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 the claim 1 and a method for producing the fan wheel.
  • the invention has for its object to improve the fan wheel so that in the case of strongly changing temperature conditions, an exact and constant one Geometry and balance position of the fan wheel is retained.
  • the axially preferably formed as flat embossing or shape advanced sections give the base plate such a dimensional stability and heat resistance even under extreme thermal loads, e.g. up to 500 ° C when used in pyrolytically self-cleaning ovens that no change in geometric relations takes place, the balanced state is preserved and a consistently low running noise is achieved.
  • thermal expansion of the material cannot be partial Lead to faults. Because of these properties, which favor dimensional stability there is the possibility of also relatively thin, preferably metallic To use sheet metal material with low heat capacity without regard disadvantages of the concentricity would be feared. Because of the above Dimensional stability there is also the possibility of the fan wheel with a relatively break-sensitive coating e.g. with a catalytic self-cleaning enamel coating.
  • the invention is based on an embodiment shown in the drawing explained below.
  • the fan wheel shown in Fig. 1 has a circle Central middle region 1, in the center of which there is an out-of-round axis opening 2 for the assembly is located on the output shaft of a drive motor, not shown.
  • the central central region 1 is adjoined by wing-like radially over the central region protruding approaches 3, of which a total of seven approaches 3 are provided are.
  • the axes of symmetry extend the approaches 3 not exactly radial but slightly inclined to the associated Radial.
  • the approaches 3 taper slightly outwards and have each a lateral boundary of blades 4 bent at right angles, as from Figures 2 and 3 can be seen.
  • the central area 1 and the approaches 3 are part of it a one-piece, made of thin e.g. metallic sheet material existing Base plate 5, 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. How FIGS. 1 and 3 in particular show one opposite in the central central region 1 a base plane 8 axially advanced, annular
  • Section 7 formed in the form of an annular, flat shape embossing which correspond to the number of approaches 3 star or radial sections 9 Connect immediately and seamlessly. As shown in Fig. 1, pull them through radiating sections 9 the lugs 3 substantially symmetrical Outer contour of these approaches 3. They extend almost to the ends of the approaches 3, so that between the outer contour of the fan wheel or Base plate 5 including the approach foot areas largely constant edge webs or edge surfaces 10 result.
  • the contouring follows in the exemplary embodiment the sections 9 of the outer contour of the Base plate 8 to form the aforementioned edge surfaces 10 of constant width.
  • the shaped embossed, axially advanced sections 9 are essentially flat surfaces 11 which are provided with gentle, largely rounded and therefore flow-favorable transitions 12 pass into the base plane 8.
  • the radial sections 9 taper outwards according to the tapered contour of the wing-like lugs 3.
  • the embossing depth h continues to decrease in the area of the radiation-like sections 9. Due to the fact that the approaches 3 do not run exactly radially to the center of the fan wheel, arise in the foot areas of the radial approaches 3 asymmetrical courses of the round, outer contour edges and therefore uneven circular areas in these foot areas.
  • a preferred method for producing the explained Fan wheel is provided that first of all from a flat, e.g. corresponding the circumferential circle 6 dimensioned metallic board, which immediately Sections 7 and 9 (shape embossing) which merge seamlessly into one another using the embossing process be axially advanced and that afterwards the star or radiate Contour of the base plate 5 is cut or punched and then or in a common stamping and embossing process, the blades 4 opposite the base plate 5 are bent. In this way you avoid embossing Material stresses in the edge surfaces 10 in the base plane 8.
  • the surfaces 11 serve against those that surround the embossed shapes Areas, in particular the edge surfaces 10 and the central circular surface 14 are axially advanced in the center of the fan wheel by stamping. Subsequently can the fan wheel in a known manner with a surface coating be provided.
  • the design of the fan wheel according to the invention resulting advantages are particularly evident when using metallic and material deformed by embossing.
  • other materials are also or shapes for the fan wheel conceivable, e.g. the usage of plastic, where appropriate molding processes to create the are to be used as spatial shapes to be understood.

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 Lüfterrad und Verfahren zur Herstellung desselben Expired - Lifetime EP0727582B1 (de)

Applications Claiming Priority (2)

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

Publications (2)

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

Family

ID=7751862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95118978A Expired - Lifetime EP0727582B1 (de) 1995-01-19 1995-12-01 Lüfterrad und Verfahren zur Herstellung desselben

Country Status (11)

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

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
EP3306789B1 (en) * 2015-05-27 2022-08-10 Mitsubishi Electric Corporation Vehicle ac generator
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

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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
GB1231085A (zh) * 1967-07-22 1971-05-05
US3521973A (en) * 1968-08-16 1970-07-28 Anpol Research Corp Fan construction
GB1275916A (en) * 1968-11-22 1972-06-01 Lucas Industries Ltd Dynamo electric machines
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
DE2531889C3 (de) * 1975-07-17 1981-11-26 Robert Bosch Gmbh, 7000 Stuttgart Befestigung eines scheibenförmigen Läufers auf einer Welle, insbesondere eines Lüfterrades aus Blech für Drehstromgeneratoren
US4174924A (en) * 1975-10-21 1979-11-20 Wallace Murray Corporation Sheet metal fan assembly
DE2845739A1 (de) * 1978-10-20 1980-04-30 Mulfingen Elektrobau Ebm Luefterrad fuer heissluftoefen
DE2935923C2 (de) * 1979-09-06 1986-09-04 Robert Bosch Gmbh, 7000 Stuttgart Lüfterrad für elektrische Maschinen
DE4102321C2 (de) * 1991-01-26 1996-08-14 Bosch Gmbh Robert Lüfterrad für Drehstromgeneratoren
DE4314846C2 (de) * 1993-05-05 1998-01-29 Hettich Andreas Fa Rotor für Schwenkbecherzentrifugen

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
HU9503690D0 (en) 1996-02-28
TR199501723A2 (tr) 1996-08-21
ATE215182T1 (de) 2002-04-15
CZ15496A3 (en) 1996-08-14
EP0727582A1 (de) 1996-08-21
DE59510128D1 (de) 2002-05-02
PL312345A1 (en) 1996-07-22
ES2174889T3 (es) 2002-11-16
US5685695A (en) 1997-11-11
HU215829B (hu) 1999-02-01
CZ288845B6 (cs) 2001-09-12
US5873164A (en) 1999-02-23
DE19501533C3 (de) 2000-01-13
PL179426B1 (pl) 2000-09-29
CN1133945A (zh) 1996-10-23
DE19501533A1 (de) 1996-07-25
KR960029635A (ko) 1996-08-17
DE19501533C2 (de) 1996-11-07
HUT73476A (en) 1996-08-28

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