EP0596043B1 - Dispositif servant a supporter un carter de ventilateur au moyen d'une bague elastique - Google Patents
Dispositif servant a supporter un carter de ventilateur au moyen d'une bague elastique Download PDFInfo
- Publication number
- EP0596043B1 EP0596043B1 EP92918460A EP92918460A EP0596043B1 EP 0596043 B1 EP0596043 B1 EP 0596043B1 EP 92918460 A EP92918460 A EP 92918460A EP 92918460 A EP92918460 A EP 92918460A EP 0596043 B1 EP0596043 B1 EP 0596043B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- ring
- hook
- forming devices
- opening
- 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
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
Definitions
- the present invention relates to an arrangement for supporting a fan housing which houses a fan impeller or fan wheel, wherein the exhaust end of the housing opens adjacent an opening in a wall of the space or room to be air-cooled.
- the invention primarily relates to fan housings having a size which is normal with computer cooling fans and whose weight, including the electric motor incorporated in the fan, is about 70 grams for instance. Externally, the fan housing has a four-sided configuration, measuring 60 x 60 mm. The fan housings, however, may be larger in the case of larger computers with larger cooling requirements.
- a housing of this kind is normally secured to a wall in the vicinity of a fan-housing opening with the aid of four screws which are screwed into screw-threaded holes provided in the wall.
- the four screws represent a certain material expenditure and a certain amount of time is also consumed in threading the screw holes and also in tightening the screws in said holes.
- the most serious drawback with this known arrangement is that vibrations from the fan impeller and the electric motor propagate to the wall, via the screws, and therewith create disturbing vibration noise.
- a fan housing including a fan impeller, supported in the vicinity of an opening in a wall leading to a space which is to be air-cooled, with the exhaust end of the housing opening in the vicinity of the wall opening, particularly a computer fan housing, characterised in that an elastic ring is disposed around the end part of the housing at said exhaust end and in that at least two hook-forming devices are disposed at the wall opening and evenly distributed therearound; wherein the ring is stretched at at least two evenly distributed points around the housing periphery and hooked onto the corresponding hook-forming devices, and wherein those parts of the ring which extend between the hook-forming devices lie against parts of the housing periphery and support the housing in a free position relative to the wall, the hook-forming devices and the defining edge of the opening.
- the housing When the fan housing is fitted in position, the housing is completely free from contact with the wall, the hooks and the opening defining edges.
- the elastic ring is stretched and hooked onto the hooks at the edges of the opening and those parts of the ring located between the hooks abut the outer surface of the housing or supports connected therewith with sufficient force and friction to hold the housing in a desired position solely with the aid of the elastic ring, which therewith also functions as an effective vibration damping device which is effective in reducing the vibration sound.
- the inventive arrangement is also cost-saving.
- Figure 1 is a perspective view of a known fan housing positioned above an opening provided in the housing wall, prior to fitting the housing.
- Figure 2 is a sectional view taken on a broken plane along the line 2-2 in Figure 1.
- Figure 3 is a perspective view of a second embodiment of the housing with the housing shown in position above the wall opening.
- Figure 4 is a sectional view taken on the line 4-4 in Figure 3.
- FIG. 1 illustrates a known fan 10 having a cylindrical fan housing with two end flanges 12, 14 which form lugs at the corners, which are connected through cylinders 16 for fastener screws (not shown).
- the impeller 18 of the blower or fan 10 is driven by a motor incorporated in the fan assembly.
- the flanges impart a square shape to the fan components.
- the corner parts 12A, 14A of the flanges 12, 14 form lugs or shoulders which extend radially in relation to the cylinders 16.
- a wall 20, for instance a computer housing wall, is provided with a square opening which is sufficiently large to accommodate the fan housing with a given clearance.
- a tongue or like element in the form of a hook 24 or some other like element is provided at each side edge of the opening.
- the housing together with the flanges, fits in the opening and between the hooks 24 with a predetermined clearance 26.
- FIG. 1 Shown in Figure 1 is a first elastic ring 28 which has a cylindrical cross-section, similar to the case of an O-ring, although it may also have a rectangular cross-section.
- the ring 28 is shown stretched around the housing. In the illustrated embodiment, the ring bears against the cylinders 29 on the known housing.
- FIG. 1 Also shown in Figure 1 is a second elastic ring 30 which is stretched and hooked around the hooks 24.
- the rings can be fitted quickly and easily.
- the second ring 30 is first hooked around the hooks 24, wherein those parts 32 of the ring that extend between the hooks will form an elastic support for the exhaust end of the housing when the housing is inserted down between the hooks.
- the first ring 28 is then stretched out at four points and hooked on the hooks 24 so as to lie on the second ring 30 at the hooks, as shown in Figure 2, where the first ring is moved into abutment with the lugs or shoulders 14A so as to hold the housing pressed against the aforesaid parts 30 of the second ring.
- the housing is therewith supported securely by the two rings 28, 30 in a position which is coaxial with the opening 22 and in a manner which will prevent axial movement of the housing in relation to the rings. Because the rings are chosen to produce a sufficiently strong holding force, the housing will remain in the position desired, even should the housing be subjected to axially directed forces, for instance as a result of bangs and knocks.
- a highly simplified embodiment may consist of a cylindrical housing which is secured elastically between the two parts of an elastic ring stretched onto two diametrically opposed hooks. Although this embodiment functions satisfactorily, it is not normally sufficiently secure against shifting of the housing when, for instance, the housing is subjected to axial impact.
- One important advantage afforded by the invention is that it can be applied immediately to generally existing fan housings without requiring changes to be made. The only modification required is the provision of the hooks adjacent the wall opening. Relatively inexpensive O-rings are conveniently used as the aforesaid elastic rings.
- a fan can be provided at the exhaust end of the fan, or a pair of flanges to form a groove for coaction with the elastic rings.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Exhaust Silencers (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Claims (4)
- Boîtier de ventilateur (10, 12, 14) renfermant une roue de ventilateur (18) supportée dans le voisinage d'une ouverture pratiquée dans une paroi (20), qui débouche à un espace dont il s'agit de refroidir l'air, l'extrémité de sortie du boîtier débouchant dans le voisinage de l'ouverture de la paroi, en particulier, boîtier de ventilateur d'ordinateur, caractérisé en ce qu'un bracelet élastique (28 ; 32) est disposé autour de la partie d'extrémité du boîtier, au droit de ladite extrémité de sortie, et en ce qu'au moins deux dispositifs (24) formant crochet sont disposés au droit de l'ouverture de la paroi et répartis uniformément sur le tour de cette ouverture ; dans lequel le bracelet (28 ; 32) est tendu en au moins deux points uniformément répartis sur le tour de la périphérie du boîtier et accroché sur les dispositifs formant crochet (24 ; 34) correspondants ; et dans lequel les parties du bracelet (28 ; 32) qui s'étendent entre les dispositifs formant crochet sont appuyés contre des parties de la périphérie du boîtier et supportent le boîtier dans une position libre par rapport à la paroi, aux dispositifs formant crochet et au bord limite de l'ouverture.
- Boîtier de ventilateur supporté dans le voisinage d'une ouverture de paroi selon la revendication 1, caractérisé en ce que le boîtier est muni d'épaulements ou tétons de support radiaux (14A) au droit de l'extrémité de sortie du boîtier, lesdits tétons ou épaulements étant appuyés contre les parties du bracelet (28 ; 32) qui sont tendues entre les dispositifs formant crochet (24 ; 34), de sorte que le boîtier restera tenu par le bracelet s'il est soumis à des forces qui agissent dans une direction axiale qui s'éloigne de l'ouverture du boîtier.
- Boîtier de ventilateur supporté dans le voisinage d'une ouverture de paroi, selon la revendication 2, caractérisé en ce qu'un deuxième bracelet élastique (30) est tendu sur les dispositifs (24) formant crochet, et dans lequel l'extrémité de sortie du boîtier de ventilateur est appuyée contre les parties du deuxième bracelet (30) qui s'étendent entre les dispositifs formant crochet.
- Boîtier de ventilateur supporté dans le voisinage d'une ouverture de paroi selon la revendication 2, caractérisé en ce que les épaulements ou tétons radiaux de support sont composés d'une paire de saillies, tétons ou pattes radiaux (14A, 36) ayant un espacement axial qui correspond de façon générale à l'épaisseur du bracelet (32) ; et en ce que des parties du bracelet qui s'étendent entre les dispositifs (34) formant crochet sont disposées entre les paires de saillies pour empêcher tout déplacement axial du boîtier de ventilateur par rapport au bracelet (32) dans les deux sens.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9102382A SE469041B (sv) | 1991-08-16 | 1991-08-16 | Anordning foer uppbaerande av ett flaekthus med hjaelp av en elastisk ring |
SE9102382 | 1991-08-16 | ||
PCT/SE1992/000548 WO1993004289A1 (fr) | 1991-08-16 | 1992-08-14 | Dispositif servant a supporter un carter de ventilateur au moyen d'une bague elastique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0596043A1 EP0596043A1 (fr) | 1994-05-11 |
EP0596043B1 true EP0596043B1 (fr) | 1996-02-28 |
Family
ID=20383491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92918460A Expired - Lifetime EP0596043B1 (fr) | 1991-08-16 | 1992-08-14 | Dispositif servant a supporter un carter de ventilateur au moyen d'une bague elastique |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0596043B1 (fr) |
DE (1) | DE69208664T2 (fr) |
FI (1) | FI102001B (fr) |
SE (1) | SE469041B (fr) |
WO (1) | WO1993004289A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104295515A (zh) * | 2013-07-15 | 2015-01-21 | 奇鋐科技股份有限公司 | 串联风扇结合结构 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19643760C1 (de) * | 1996-10-23 | 1997-12-11 | Daimler Benz Ag | Haltevorrichtung mit einem elastischen Haltemittel für die Aufhängung eines elektromotorisch angetriebenen Gebläses |
US5906475A (en) * | 1997-11-12 | 1999-05-25 | Alcatel Usa Sourcing, L.P. | Housing for a fan |
US6077037A (en) * | 1999-03-12 | 2000-06-20 | Lockheed Martin Corporation | Quick-change fan mechanism |
US7289321B2 (en) | 2004-11-16 | 2007-10-30 | Hewlett-Packard Development Company, L.P. | Ventilated casing for an electronic device |
TWM293476U (en) * | 2005-12-29 | 2006-07-01 | Inventec Corp | Structure of a heat-dissipating device of a computer mainframe |
US7545641B2 (en) * | 2007-04-23 | 2009-06-09 | Super Micro Computer Inc. | Computer housing shock absorber device for a vibration source frame |
DE202008001613U1 (de) * | 2008-01-25 | 2009-06-10 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Lüftereinheit mit einem Axiallüfter |
JP6531485B2 (ja) * | 2015-05-15 | 2019-06-19 | 富士通株式会社 | ファン及び電子機器 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8326902U1 (de) * | 1983-09-19 | 1984-02-02 | Nixdorf Computer Ag, 4790 Paderborn | Befestigungselement fuer die befestigung eines zwei im abstand hintereinander angeordnete tragflansche aufweisenden geraetes |
DE3429993A1 (de) * | 1984-08-16 | 1986-02-27 | Schroff Gmbh, 7541 Straubenhardt | Befestigungsvorrichtung fuer elektrische axialluefter |
DE3541787A1 (de) * | 1985-11-26 | 1987-06-04 | Papst Motoren Gmbh & Co Kg | Geblaese mit einem im wesentlichen quaderfoermigen gehaeuse |
DE8707975U1 (fr) * | 1987-06-04 | 1988-09-29 | Siemens Ag, 1000 Berlin Und 8000 Muenchen, De |
-
1991
- 1991-08-16 SE SE9102382A patent/SE469041B/sv not_active IP Right Cessation
-
1992
- 1992-08-14 EP EP92918460A patent/EP0596043B1/fr not_active Expired - Lifetime
- 1992-08-14 WO PCT/SE1992/000548 patent/WO1993004289A1/fr active IP Right Grant
- 1992-08-14 DE DE69208664T patent/DE69208664T2/de not_active Expired - Fee Related
-
1993
- 1993-04-15 FI FI931703A patent/FI102001B/fi active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104295515A (zh) * | 2013-07-15 | 2015-01-21 | 奇鋐科技股份有限公司 | 串联风扇结合结构 |
Also Published As
Publication number | Publication date |
---|---|
WO1993004289A1 (fr) | 1993-03-04 |
FI102001B1 (fi) | 1998-09-30 |
SE9102382L (sv) | 1993-02-17 |
SE469041B (sv) | 1993-05-03 |
FI931703A0 (fi) | 1993-04-15 |
EP0596043A1 (fr) | 1994-05-11 |
FI102001B (fi) | 1998-09-30 |
DE69208664D1 (de) | 1996-04-04 |
FI931703A (fi) | 1993-06-10 |
DE69208664T2 (de) | 1996-10-02 |
SE9102382D0 (sv) | 1991-08-16 |
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