EP0446316A1 - Petit ventilateur. - Google Patents

Petit ventilateur.

Info

Publication number
EP0446316A1
EP0446316A1 EP90913243A EP90913243A EP0446316A1 EP 0446316 A1 EP0446316 A1 EP 0446316A1 EP 90913243 A EP90913243 A EP 90913243A EP 90913243 A EP90913243 A EP 90913243A EP 0446316 A1 EP0446316 A1 EP 0446316A1
Authority
EP
European Patent Office
Prior art keywords
fan
impeller
housing
small fan
meridian
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
EP90913243A
Other languages
German (de)
English (en)
Other versions
EP0446316B1 (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(A1) "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
Publication of EP0446316B1 publication Critical patent/EP0446316B1/fr
Application granted granted Critical
Publication of EP0446316B2 publication Critical patent/EP0446316B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 applicant has now set itself the task of further developing this 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 air flowing through, 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.
  • 1 shows a section through a small fan according to the invention
  • 2 shows a partial view of an impeller
  • Fig. 3 shows a section through a wing along the line III-III in Fig. 2, and
  • Fig. 4 is a view of the air duct housing.
  • the small fan has a cuboidal air guide housing 2 with an outer part 2a and a circular recess 2f.
  • a known electric motor 4 with electro-magnetic coils 4a is attached to a molded-on base 2b.
  • the electric motor 4 is connected to the housing outer part 2a by means of arms 2c.
  • 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 firmly 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 c over the entire depth of the blade and thus parallel vane edges (FIG. 3). It has been shown that with a number of blades between 3 and 7, a particularly favorable ratio between volume flow and Sound is reached.
  • 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 side 2d of the fan and also leaves it in the axial direction through the rear side 2e of the housing. The inflow to the impeller and the outflow are thus 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 front edge 1b of the wing.
  • the flow surface le of the hub 1d adjoining the surface 1c has the shape shown in FIG. 1.
  • the flow areas le and lf of the vanes la result from the section according to FIG. 3.
  • the hubs and vanes are designed in such a way that the flow of air through the housing is laminar and there are essentially no pressure differences 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.
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 true EP0446316A1 (fr) 1991-09-18
EP0446316B1 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
WO2010028441A1 (fr) * 2008-09-11 2010-03-18 Hunter Pacific International Pty Ltd Ventilateur d’extraction et 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
DE3371016D1 (en) * 1982-12-10 1987-05-21 Micronel Ag Ventilator with an electronically commutated d.c. motor
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9105169A1 *

Also Published As

Publication number Publication date
JPH04502052A (ja) 1992-04-09
WO1991005169A1 (fr) 1991-04-18
US5217351A (en) 1993-06-08
DE59004520D1 (de) 1994-03-17
EP0446316B1 (fr) 1994-02-02
HU210777B (en) 1995-07-28
JP3090216B2 (ja) 2000-09-18
HUT62375A (en) 1993-04-28
HU907760D0 (en) 1991-07-29
EP0446316B2 (fr) 2001-12-05

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