EP0446316A1 - Kleinventilator. - Google Patents
Kleinventilator.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
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)
Description
Claims
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 true EP0446316A1 (de) | 1991-09-18 |
EP0446316B1 EP0446316B1 (de) | 1994-02-02 |
EP0446316B2 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 |
TWI292014B (en) * | 2005-11-22 | 2008-01-01 | Sunonwealth Electr Mach Ind Co | Ultra thin-type fan |
TWI293106B (en) * | 2005-11-22 | 2008-02-01 | Sunonwealth Electr Mach Ind Co | 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 |
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 |
-
1990
- 1990-09-20 JP JP02512342A patent/JP3090216B2/ja not_active Expired - Lifetime
- 1990-09-20 EP EP90913243A patent/EP0446316B2/de not_active Expired - Lifetime
- 1990-09-20 WO PCT/CH1990/000223 patent/WO1991005169A1/de active IP Right Grant
- 1990-09-20 DE DE90913243T patent/DE59004520D1/de not_active Expired - Fee Related
- 1990-09-20 HU HU907760A patent/HU210777B/hu not_active IP Right Cessation
-
1991
- 1991-01-18 US US07/656,158 patent/US5217351A/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9105169A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP3090216B2 (ja) | 2000-09-18 |
JPH04502052A (ja) | 1992-04-09 |
EP0446316B2 (de) | 2001-12-05 |
HUT62375A (en) | 1993-04-28 |
US5217351A (en) | 1993-06-08 |
DE59004520D1 (de) | 1994-03-17 |
EP0446316B1 (de) | 1994-02-02 |
HU907760D0 (en) | 1991-07-29 |
HU210777B (en) | 1995-07-28 |
WO1991005169A1 (de) | 1991-04-18 |
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