EP0446316B1 - Petit ventilateur - Google Patents

Petit ventilateur Download PDF

Info

Publication number
EP0446316B1
EP0446316B1 EP90913243A EP90913243A EP0446316B1 EP 0446316 B1 EP0446316 B1 EP 0446316B1 EP 90913243 A EP90913243 A EP 90913243A EP 90913243 A EP90913243 A EP 90913243A EP 0446316 B1 EP0446316 B1 EP 0446316B1
Authority
EP
European Patent Office
Prior art keywords
fan
fan wheel
air
hub
impeller
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
EP90913243A
Other languages
German (de)
English (en)
Other versions
EP0446316A1 (fr
EP0446316B2 (fr
Inventor
Peter Meier
Ernst Scherrer
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.)
Micronel AG
Original Assignee
Micronel AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4258189&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0446316(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Micronel AG filed Critical Micronel AG
Publication of EP0446316A1 publication Critical patent/EP0446316A1/fr
Application granted granted Critical
Publication of EP0446316B1 publication Critical patent/EP0446316B1/fr
Publication of EP0446316B2 publication Critical patent/EP0446316B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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

Definitions

  • the invention relates to a small fan according to the preamble of independent claim 1.
  • a small fan of this type has become known from the applicant's US-A-4,504,751.
  • the electric motor is accommodated in the externally circular-cylindrical hub of a one-piece impeller, which enables particularly small external dimensions in the event of axial air outlet on the back of the air duct housing.
  • This fan has therefore found many uses. In some applications, however, the noise that occurs is annoying.
  • a diagonal fan is known from DE-A-29 44 183, in which, however, the jacket of the hub of the impeller is circular-conical or concave paraboloidal and which has a radial flow outlet. Since the motor is arranged separately from the wing on the back, a flat design as with the generic fan is fundamentally not possible.
  • the applicant has now set itself the task of developing the generic fan in such a way that it has a higher output with the same external dimensions and at the same time is quieter and can be manufactured more cost-effectively.
  • the small fan according to the invention has an approximately laminar flow. Since there is essentially no turbulence in the polluting air, it is considerably quieter. This is an improvement that has long been sought in this field.
  • a particularly flat design with a favorable power density is achieved according to a development of the invention in that the impeller front edges and the hub front and the housing front lie approximately in the same plane.
  • the small fan has a cuboidal air duct housing 2 with an outer part 2a and a circular recess 2f.
  • a known electric motor 4 with electromagnetic coils 4a is attached to a molded-on base 2b.
  • the arms 4c connect the electric motor 4 to the outer housing part 2a.
  • An impeller 1 made of plastic is inserted into the recess 2f and rotatably mounted in the housing 2 by means of an axis 3 and a bearing 6.
  • the shaft 3, which is fixedly connected to the impeller 1, is surrounded by an annular permanent magnet 5, which forms part of the electric motor 4.
  • the impeller 1 preferably has five integrally formed blades 1 a, each of which has the same angle of attack ⁇ over the entire depth of the blade and thus parallel blade edges (FIG. 3). It has been shown that a particularly favorable ratio between volume flow and sound is achieved with a number of blades between 3 and 7.
  • the wings are not twisted and have the same cross-section as shown in FIG. 3 up to their attachment point.
  • the angle of attack is preferably about 30 °.
  • the air enters the fan axially through the front face 2d of the fan and also leaves it in the axial direction through the rear face 2e.
  • the inflow to the impeller and the outflow are therefore largely axial.
  • the impeller 1, however, is flowed through diagonally as indicated by the flow lines 7.
  • the hub 2d of the impeller 1 has a flat front surface 1c which lies approximately in one plane with the housing front 2d and the leading edge 1b of the wing.
  • the flow surface 1e of the hub 1d adjoining the surface 1c has the shape shown in FIG. 1.
  • the flow areas 1e and 1f of the vanes 1a result from the section according to FIG. 3.
  • the hubs and vanes are designed such that the flow of air through the housing is laminar and essentially no pressure differences occur on the vanes in the radial direction.

Landscapes

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

Abstract

Le petit ventilateur possède un carter de guidage d'air en plastique (2) dans lequel se trouve une roue à ailettes rotative. Il est conçu comme ventilateur à accélération méridienne. Les ailettes (1a) de la roue (1) ne présentent pas de torsion et ont le même angle d'incidence sur toute la profondeur des ailettes. Les bords avant de la roue à ailettes (1b), la face avant du moyeu (1c) ainsi que la face avant du carter (2d) se trouvent approximativement sur le même plan. Par rapport à un ventilateur axial, le ventilateur à accélération méridienne possède une puissance volumique accrue pour un bruit réduit.

Claims (4)

1. Petit ventilateur comprenant un boîtier de guidage d'air (2) de forme parallélépipédique et plate, dans lequel est disposée une roue à pales (1) entraînée par un moteur électrique (4) et par le côté frontal (2d) duquel l'air pénètre axialement et par le côté arrière (2e) duquel l'air sort axialement, les pales (1a) de la roue à pales (1) n'étant pas gauchies et étant inclinées par rapport à l'axe de rotation de la roue à pales et présentent le même angle d'attaque (a) sur la totalité de la profondeur des pales, le moteur électrique étant monté dans le moyeu (1d) de la roue à pales (1), caractérisé en ce qu'il constitue un ventilateur à accélération méridienne, en ce que la surface d'écoulement (1g) du moyeu (1d) qui se raccorde au côté frontal (2d) du boîtier est de forme convexe sur la totalité de la profondeur de la roue à pales (1 de manière que le passage de l'air par le boîtier de guidage d'air (2) soit laminaire et qu'aucune différence de pression sensible n'ait lieu sur les pales (1a) en direction radiale.
2. Petit ventilateur selon la revendication 1, caractérisé en ce que les bords avant (1 b) de la roue à pales, le côté frontal (1 c) du moyeu et le côté frontal (2b) du boîtier sont situés sensiblement dans le même plan.
3. Petit ventilateur selon la revendication 1 ou 2, caractérisé en ce que la roue à pales (1) est réalisée d'un seul tenant et de préférence en matière plastique.
4. Petit ventilateur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le nombre des pales (1a) est de préférence compris entre trois et onze.
EP90913243A 1989-09-29 1990-09-20 Petit ventilateur Expired - Lifetime EP0446316B2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH3540/89 1989-09-29
CH354089 1989-09-29
CH354089 1989-09-29
PCT/CH1990/000223 WO1991005169A1 (fr) 1989-09-29 1990-09-20 Petit ventilateur

Publications (3)

Publication Number Publication Date
EP0446316A1 EP0446316A1 (fr) 1991-09-18
EP0446316B1 true EP0446316B1 (fr) 1994-02-02
EP0446316B2 EP0446316B2 (fr) 2001-12-05

Family

ID=4258189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90913243A Expired - Lifetime EP0446316B2 (fr) 1989-09-29 1990-09-20 Petit ventilateur

Country Status (6)

Country Link
US (1) US5217351A (fr)
EP (1) EP0446316B2 (fr)
JP (1) JP3090216B2 (fr)
DE (1) DE59004520D1 (fr)
HU (1) HU210777B (fr)
WO (1) WO1991005169A1 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4127134B4 (de) * 1991-08-15 2004-07-08 Papst Licensing Gmbh & Co. Kg Diagonallüfter
KR970010561B1 (ko) * 1994-04-18 1997-06-28 삼성전자 주식회사 정음형 송풍기
JP2987133B2 (ja) 1997-04-25 1999-12-06 日本電産コパル株式会社 軸流ファンと軸流ファンの羽根体の製造方法及び軸流ファンの羽根体の製造用金型
JP3500292B2 (ja) * 1998-01-30 2004-02-23 日本電産コパル株式会社 軸流ファン
FR2781843B1 (fr) * 1998-07-28 2000-10-20 Valeo Thermique Moteur Sa Helice de ventilateur compacte optimisee
FR2812349B1 (fr) * 2000-07-31 2003-01-24 Jouan Enceinte de travail a helice de mise en mouvement de son atmosphere et helice correspondante
US20030223865A1 (en) * 2002-05-30 2003-12-04 Sunonwealth Electric Machine Industry Co., Ltd. Casing for a heat-dissipating fan
JP2004169680A (ja) * 2002-11-18 2004-06-17 Taida Electronic Ind Co Ltd 羽根構造およびそれを用いた放熱装置
FR2864368B1 (fr) * 2003-12-19 2006-08-04 Valeo Equip Electr Moteur Dispositif de renforcement de la ventilation d'une machine electrique et machine electrique comportant un tel dispositif
CN100424360C (zh) * 2004-02-11 2008-10-08 台达电子工业股份有限公司 风扇及其扇叶组件
US20070031262A1 (en) * 2005-08-04 2007-02-08 Jinseok Kim Computer cooling fan
TWI293106B (en) * 2005-11-22 2008-02-01 Sunonwealth Electr Mach Ind Co Thin-type fan
TWI292014B (en) * 2005-11-22 2008-01-01 Sunonwealth Electr Mach Ind Co Ultra thin-type fan
TW200732565A (en) * 2006-02-21 2007-09-01 Sunonwealth Electr Mach Ind Co The structure of a small blower
TW200736507A (en) * 2006-03-27 2007-10-01 Sunonwealth Electr Mach Ind Co A thin structure pattern of heat dissipation
TWI349515B (en) * 2006-10-25 2011-09-21 Delta Electronics Inc Fan and fan frame thereof
US20080107366A1 (en) * 2006-11-06 2008-05-08 Zippy Technology Corp. Air fan bearing structure
TWI328080B (en) * 2007-03-30 2010-08-01 Delta Electronics Inc Fan and impeller thereof
JP2008267176A (ja) * 2007-04-17 2008-11-06 Sony Corp 軸流ファン装置、ハウジング及び電子機器
TWI373563B (en) * 2008-06-03 2012-10-01 Sunonwealth Electr Mach Ind Co Brushless dc motor
US20110223029A1 (en) * 2008-09-11 2011-09-15 Hunter Pacific International Pty Ltd Extraction fan and rotor
US10034411B2 (en) * 2015-09-25 2018-07-24 Apple Inc. Thermal flow assembly including integrated fan

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US420470A (en) * 1890-02-04 Exhaust-fan
FR1177794A (fr) * 1957-05-24 1959-04-29 Dispositif de propulsion de fluides
DE1503483B2 (de) * 1964-06-23 1970-12-23 Aktiebolaget Electrolux, Stockholm Gebläse, insbesondere in Verbindung mit einer Kraftfahrzeugvorrichtung
DE2327125C3 (de) * 1973-05-28 1979-11-15 Siemens Ag, 1000 Berlin Und 8000 Muenchen Axialventilator mit Gehäuse
CH635900A5 (de) * 1978-02-15 1983-04-29 Papst Motoren Kg Axial kompaktes geblaese.
DE2944183A1 (de) * 1978-11-08 1980-05-29 Papst Motoren Kg Miniaturdiagonalgeblaese mit axialem stroemungseintritt und radialem stroemungsaustritt
FR2454921A1 (fr) * 1979-04-25 1980-11-21 Ferodo Sa Dispositif de montage d'un groupe moto-ventilateur dans une installation de chauffage et/ou de climatisation de l'habitacle d'un vehicule automobile
JPS5775200U (fr) * 1980-10-24 1982-05-10
FR2497883B1 (fr) * 1981-01-09 1985-12-13 Etri Sa Ventilateur electrique axial de type plat
ATE26634T1 (de) * 1982-12-10 1987-05-15 Micronel Ag Ventilator mit elektronisch kommutiertem gleichstrommotor.
JPS6141886U (ja) * 1984-08-21 1986-03-17 株式会社 日本計器製作所 フアン・モ−タ
DE3439539A1 (de) * 1984-10-29 1986-05-07 Papst-Motoren GmbH & Co KG, 7742 St Georgen Ventilator
DE3541787A1 (de) * 1985-11-26 1987-06-04 Papst Motoren Gmbh & Co Kg Geblaese mit einem im wesentlichen quaderfoermigen gehaeuse
US4927328A (en) * 1989-03-02 1990-05-22 Scoates William D Shroud assembly for axial flow fans
US5096373A (en) * 1991-02-21 1992-03-17 Sun Microsystems, Inc. Integrated forced convection air cooling systems

Also Published As

Publication number Publication date
HUT62375A (en) 1993-04-28
EP0446316A1 (fr) 1991-09-18
US5217351A (en) 1993-06-08
EP0446316B2 (fr) 2001-12-05
DE59004520D1 (de) 1994-03-17
JPH04502052A (ja) 1992-04-09
WO1991005169A1 (fr) 1991-04-18
HU210777B (en) 1995-07-28
JP3090216B2 (ja) 2000-09-18
HU907760D0 (en) 1991-07-29

Similar Documents

Publication Publication Date Title
EP0446316B1 (fr) Petit ventilateur
DE69925071T2 (de) Kreisellüftereinheit für ein Kraftfahrzeug
EP2802780B1 (fr) Ventilateur axial ou diagonal avec arête de détente sur l'extrados de l'aube
EP1712800B1 (fr) Roue de ventilateur
DE102008056459A1 (de) Diagonallüfter
DE3137114A1 (de) Axialgeblaese, insbesondere fuer kraftfahrzeuge
DE2744366A1 (de) Laufrad fuer einen radialen turboverdichter
DE102006061868A1 (de) Wärmeableitungslüfter
DE19614580A1 (de) Ventilationseinrichtung in einem Motorwerkzeug
WO2017017264A1 (fr) Roue de ventilateur et module ventilateur de refroidissement
DE102008000168A1 (de) Gebläseanordnung mit Vordrallerzeuger
DE60309973T2 (de) Kreisellüfter mit Kühlschaufel
DE602004008811T2 (de) Axiallüfter
DE2807273C2 (de) Radialgebläse, insbesondere für Heizungen und Klimaanlagen in Kraftfahrzeugen
DE4335686B4 (de) Gebläse
DE19710606B4 (de) Lüfter, insbesondere für Kühler von Verbrennungsmotoren
EP1193399A2 (fr) Ventilateur radial, en particulier pour respirateur
DE3220574A1 (de) Leitradloser axialventilator, insbesondere fuer elektromotorisch angetriebene kraftfahrzeug-kuehlerventilatoren
DE4113394C3 (de) Ringkanalgebläse
DE3514207A1 (de) Lichtmaschine mit einem luefterrad zum ansaugen von kuehlluft fuer kraftfahrzeuge
DE4227901C2 (de) Lüfteranordnung, insbesondere für die Kühlung von Kraftfahrzeugmotoren
DE20317171U1 (de) Lüftergehäuse
DE3739871C1 (en) Fan
WO2011012351A1 (fr) Géométrie de guidage pour roues semi-axiales de ventilateur
DE3127518A1 (de) Axialventilator

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19910522

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE DK FR GB IT LI SE

17Q First examination report despatched

Effective date: 19921029

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE DK FR GB IT LI SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19940202

Ref country code: DK

Effective date: 19940202

Ref country code: SE

Effective date: 19940202

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19940202

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19940202

REF Corresponds to:

Ref document number: 59004520

Country of ref document: DE

Date of ref document: 19940317

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940308

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: PAPST-MOTOREN GMBH & CO. KG

Effective date: 19941031

RDAH Patent revoked

Free format text: ORIGINAL CODE: EPIDOS REVO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAE Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOS REFNO

APAB Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPE

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20010718

Year of fee payment: 12

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010813

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010817

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010820

Year of fee payment: 12

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20011205

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): CH DE DK FR GB IT LI SE

REG Reference to a national code

Ref country code: CH

Ref legal event code: AEN

Free format text: AUFRECHTERHALTUNG DES PATENTES IN GEAENDERTER FORM

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19940202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020930

EN Fr: translation not filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030401

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO