EP0446316B1 - Petit ventilateur - Google Patents
Petit ventilateur Download PDFInfo
- 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
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
Claims (4)
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)
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)
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 |
-
1990
- 1990-09-20 HU HU907760A patent/HU210777B/hu not_active IP Right Cessation
- 1990-09-20 EP EP90913243A patent/EP0446316B2/fr not_active Expired - Lifetime
- 1990-09-20 JP JP02512342A patent/JP3090216B2/ja not_active Expired - Lifetime
- 1990-09-20 DE DE90913243T patent/DE59004520D1/de not_active Expired - Fee Related
- 1990-09-20 WO PCT/CH1990/000223 patent/WO1991005169A1/fr active IP Right Grant
-
1991
- 1991-01-18 US US07/656,158 patent/US5217351A/en not_active Expired - Lifetime
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 |
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