EP0446316B2 - Kleinventilator - Google Patents
Kleinventilator Download PDFInfo
- Publication number
- EP0446316B2 EP0446316B2 EP90913243A EP90913243A EP0446316B2 EP 0446316 B2 EP0446316 B2 EP 0446316B2 EP 90913243 A EP90913243 A EP 90913243A EP 90913243 A EP90913243 A EP 90913243A EP 0446316 B2 EP0446316 B2 EP 0446316B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fan
- hub
- fan wheel
- housing
- 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
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.
- the applicant has now taken on the task of developing the generic fan to the effect that that it has a higher performance with the same external dimensions and at the same time is quieter and cheaper can be manufactured.
- the inventive small fan has in contrast to the above Fan, which is a small axial fan, has an approximately laminar flow. Because in the the air that is blowing through essentially no turbulence, it is much quieter. In order to is an improvement that has long been sought in this field.
- a particularly flat design with a favorable power density is a further development of the invention achieved by 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 one circular recess 2f.
- a known electric motor 4 with electromagnetic coils is on a molded-on base 2b 4a attached.
- 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 by means of an axis 3 and a bearing 6 rotatably mounted in the housing 2.
- the axis 3 is fixedly connected to the impeller 1 surrounded by an annular permanent magnet 5, which forms part of the electric motor 4.
- the impeller 1 preferably has five molded blades 1a, each of the same pitch angle ⁇ over the entire wing depth and thus parallel blade edges (Fig. 3). It has been shown that with a number of wings between 3 and 7 a particularly favorable one Ratio between volume flow and sound is reached. The wings are not wound and have up to to their attachment point the same cross section as shown in Fig. 3 The angle of attack is preferably about 30 °.
- the air enters the fan axially through the housing front 2d and also leaves it in the axial direction through the rear side 2e. The inflow to the impeller and the outflow is thus largely axial.
- the impeller 1, however, is like through the flow lines 7 indicated diagonally flows.
- the hub 2d of the impeller 1 has a flat front surface 1c, which with the housing front 2d and the wing leading edges 1b lie approximately in one plane.
- the flow area adjoining the area 1c 1e of the hub 1d has the shape shown in FIG. 1.
- the flow areas 1e and 1f of the wing 1a result from the section according to FIG. 3. Hubs and vanes are designed so that the flow the air through the housing is laminar and there are essentially no pressure differences on the blades in the radial direction occur.
Description
- Fig. 1
- einen Schnitt durch einen erfindungsgemässen Kleinventilator,
- Fig. 2
- eine Teilansicht eines Flügelrades,
- Fig. 3
- einen Schnitt durch einen Flügel entlang der Linie lll-lll in Fig. 2, und
- Fig. 4
- eine Ansicht des Luftführungsgehäuses.
Claims (3)
- Kleinventilator mit einem quaderförmigen und flachen Luftführungsgehäuse (2), in dem ein von einem Elektromotor (4) angetriebenes Flügelrad (1) angeordnet ist und durch dessen Stirnseite (2d) Luft eintritt und durch dessen Rückseite (2e) Luft axial austritt, wobei die Flügel (1a) des Flügelrades (1) nicht verwunden sind und zur Rotationsachse des Flügelrades geneigt sind, und jeweils über die ganze Flügeltiefe den gleichen Anstellwinkel (α) aufweisen sowie der Elektromotor in der Nabe (1d) des Flügelrades (1) angeordnet ist, dadurch gekennzeichnet, dass er ein meridianbeschleunigter Ventilator ist, dass die an eine Gehäusefrontseite (2d) anschliessende Strömungsfläche (1g) der Nabe (1d) über die gesamte Tiefe des Flügelrades (1) konvex ausgebildet ist, derart, dass der Durchfluss der Luft durch das Luftführungsgehäuse (2) laminar ist und an den Flügeln (1a) in radialer Richtung im wesentlichen keine Druckunterschiede auftreten, wobei die Flügelvorderkanten (1b) und die Nabenfrontseite (1c) sowie die Gehäusefrontseite (2d) etwa in der gleichen Ebene liegen und wobei die an die ebene Nabenfrontseite (1c) anschliessende Strömungsfläche (1g) der Nabe (1d) die aus Fig. 1 ersichtliche Formgebung aufweist.
- Kleinventilator nach Anspruch 1, dadurch gekennzeichnet, dass das Flügelrad (1) einstückig und vorzugsweise aus. Kunststoff gefertigt ist.
- Kleinventilator nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Anzahl der Flügel (1a) vorzugsweise drei bis elf ist.
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 (de) | 1989-09-29 | 1990-09-20 | Kleinventilator |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0446316A1 EP0446316A1 (de) | 1991-09-18 |
EP0446316B1 EP0446316B1 (de) | 1994-02-02 |
EP0446316B2 true EP0446316B2 (de) | 2001-12-05 |
Family
ID=4258189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90913243A Expired - Lifetime EP0446316B2 (de) | 1989-09-29 | 1990-09-20 | Kleinventilator |
Country Status (6)
Country | Link |
---|---|
US (1) | US5217351A (de) |
EP (1) | EP0446316B2 (de) |
JP (1) | JP3090216B2 (de) |
DE (1) | DE59004520D1 (de) |
HU (1) | HU210777B (de) |
WO (1) | WO1991005169A1 (de) |
Families Citing this family (22)
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 (en) * | 2008-09-11 | 2010-03-18 | 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)
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 (de) * | 1980-10-24 | 1982-05-10 | ||
FR2497883B1 (fr) * | 1981-01-09 | 1985-12-13 | Etri Sa | Ventilateur electrique axial de type plat |
EP0111443B1 (de) * | 1982-12-10 | 1987-04-15 | 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 |
-
1990
- 1990-09-20 DE DE90913243T patent/DE59004520D1/de not_active Expired - Fee Related
- 1990-09-20 WO PCT/CH1990/000223 patent/WO1991005169A1/de active IP Right Grant
- 1990-09-20 JP JP02512342A patent/JP3090216B2/ja not_active Expired - Lifetime
- 1990-09-20 HU HU907760A patent/HU210777B/hu not_active IP Right Cessation
- 1990-09-20 EP EP90913243A patent/EP0446316B2/de not_active Expired - Lifetime
-
1991
- 1991-01-18 US US07/656,158 patent/US5217351A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP3090216B2 (ja) | 2000-09-18 |
DE59004520D1 (de) | 1994-03-17 |
HUT62375A (en) | 1993-04-28 |
JPH04502052A (ja) | 1992-04-09 |
EP0446316B1 (de) | 1994-02-02 |
HU907760D0 (en) | 1991-07-29 |
HU210777B (en) | 1995-07-28 |
US5217351A (en) | 1993-06-08 |
EP0446316A1 (de) | 1991-09-18 |
WO1991005169A1 (de) | 1991-04-18 |
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