EP1617085B2 - Damped fan - Google Patents
Damped fan Download PDFInfo
- Publication number
- EP1617085B2 EP1617085B2 EP05014242.1A EP05014242A EP1617085B2 EP 1617085 B2 EP1617085 B2 EP 1617085B2 EP 05014242 A EP05014242 A EP 05014242A EP 1617085 B2 EP1617085 B2 EP 1617085B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fan
- housing
- elastic damping
- damping elements
- fastening
- 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.)
- Active
Links
- 238000013016 damping Methods 0.000 claims abstract description 60
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims 1
- 229920002457 flexible plastic Polymers 0.000 claims 1
- 229920001195 polyisoprene Polymers 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 9
- 239000003570 air Substances 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 238000003860 storage Methods 0.000 description 4
- 238000007373 indentation Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Images
Classifications
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- 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
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- 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
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
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- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
Definitions
- the present invention relates to an axial fan according to the preamble of claim 1.
- Such axial fans are used for air cooling of heat generating components. Above all, they are used as computer fans for air cooling of electrical and / or electronic components in personal computers or computers. They include a fan housing with an axiallyteurströmbaren Lucasleitrahmen in which a fan is rotatably mounted, wherein the fan housing in the axial direction has an at least substantially rectangular cross-section and in its four corners with fastening means for direct attachment to a component to be cooled or for indirect attachment is provided on a housing containing the component to be cooled.
- the fastening means are formed by mounting holes which are arranged at a standard distance such that the fan can be fixed by means of screws in the computer housing also provided in the standard distance holes.
- the fastening means can also be designed for other types of fastening, for example for snap connections
- Such axial fans which are also referred to as case fans, are well known. They are used in particular in computers for cooling or for dissipating the heat that is emitted by heat-generating components, for example, processors, in particular via heat sinks.
- a cooling air flow is generated by rotation of the provided with suitably shaped blades or fan blades fan, which is directed in at least substantially axial direction on the heat-releasing and to be cooled component.
- the fan can also be arranged so that it sucks the ambient air surrounding the heat-dissipating member, so as to dissipate the heat.
- Such fans may also be connected to other chips, in particular to graphics cards, to hard disk drives and / or to Power supplies are used.
- such fans can be used in other devices with heat-generating components, such as projectors.
- Fans of the type mentioned thus basically consist of two main main assemblies, namely the fan housing and the rotatable fan wheel unit connected thereto. While the fan housing with its outer areas or with its Luftleitrahmen the installation of the ready-to-use fan, the fan wheel unit ensures with their fan blades by their rotation for the desired movement of the air.
- the rotational movement of the fan wheel unit is usually brought about by an electric motor arranged coaxially with the fan wheel in or on the fan housing.
- the mechanically transmitted to the fan housing during operation oscillations or vibrations increase the overall volume of the fan depending on the speed considerably, since the fan housing of the fan forms a resonator.
- the fan is mounted in a computer housing, usually made of sheet steel, which is usually done by a fixed snap or screw connection, the vibrations are transmitted to the then resonating computer case, which again increases the volume.
- the vibration transmission to the computer case is carried out by the direct contact of the vibrating plastic parts of the fan housing with the computer case. Since a computer housing is a very good sound box, the high-frequency vibrations (structure-borne noise) caused by the fan are clearly audibly amplified by the PC housing.
- the fan is not fastened with metal screws, but attached as a separate mounting means additionally and specially shaped rubber elements, which should prevent the transmission of the fan vibrations to the computer case.
- the fan housing is vibration damping attached to a component or the computer case, whereby a certain noise attenuation can be achieved. It is also known to mount the fan housing freely swinging by means of one or more outwardly tensioned rubber cords.
- Another disadvantage is the additional installation space required for the elastomer components located outside of the fan housing, which represents a considerable problem, especially in the cramped space conditions in a computer housing.
- the GB 2 107 787 A discloses an axial fan with a fan housing surrounded by an external isolation device.
- This isolation device comprises an outer frame and an inner frame, which are interconnected by an elastic membrane.
- the inner frame is either attached by screws to the fan housing or designed in one piece with it, wherein the membrane acting as an elastic damping element is not integrated in each case in the fan housing, but this outside surrounds. This in turn requires additional space and is associated with the disadvantages mentioned.
- Object of the present invention is therefore to provide an inexpensive to manufacture and easily assembled without additional components fan of the type mentioned above, which has a significantly improved noise reduction in a structurally simple manner and is very quiet in operation, without requiring additional space.
- a significant advantage lies in the fact that due to the effective between the fan and the attachment means for fixing the axial damping damping element, the fan or the Lüfterradö decoupled as a vibration-generating component mechanically completely from a serving for mounting the fan component, in particular from a computer housing receiving the fan is. Therefore, vibrations or vibrations that arise can no longer or at most be transmitted to a significantly reduced extent to an outer component or to a computer housing. Outer components or computer cases are therefore no longer amplifying the resonant body, whereby the volume of the fan during operation is considerably reduced. In particular, in perceived as annoying frequency range as a significant noise attenuation can be achieved.
- Another significant advantage is that due to the complete integration of the at least one damping element or the complete integration of all damping elements in the fan neither additional space nor separately to be mounted elastomeric elements are needed. All damping elements are located in the fan housing, so that the axial fan according to the invention can be mounted or attached in exactly the same way and used by the user, as the conventional fan without integrated damping elements.
- an axial fan is created, which not only runs very quietly, but is also inexpensive to produce and quick and easy to install.
- all the damping elements are integrated into the fan, so that no separate damping components are needed more, via which the fan must be mounted in the computer.
- the fan according to the invention can therefore be easily mounted in a conventional manner by snap connections or by screw in a computer case, the conventional and standardized mounting Befest Trentsbohrüngen can be used. Since all damping means are arranged in the fan housing, on the one hand no additional space is required and on the other hand, an unwanted amplification of the vibrations or an increase in the volume of the fan can be effectively avoided.
- each fastening means which is used for fastening the fan to a component to be cooled or to a computer housing is accommodated in a damping element, wherein the damping elements are in turn disposed within the axial fan.
- damping elements can project beyond the Luftleitrahmen axially on both end faces of the fan with both end faces axially applied to a component or a computer case and attached thereto.
- the vibration decoupling can be done regardless of the orientation of the fan during its assembly.
- the shipsleitrahmen viewed in the axial direction, at least approximately have an octagonal cross section, wherein the elastic damping elements each have an at least approximately triangular cross-section.
- the sides facing the damping elements may be rounded or the Lucasleitrahmen may have a total of a round cross-section, wherein the damping elements each have an at least approximately triangular cross-section with a concavely curved base side.
- the fastening means are preferably formed by bores.
- self-tapping screws can be used to attach the fan.
- the mounting holes each comprise a recorded or cast in the respective elastic damping element, preferably made of metal or plastic, threaded sleeve having an internal thread. In this case, then the internal thread corresponding, in particular metric screws can be used for secure attachment of the fan.
- bearing means fans and / or roller bearings, in particular ball bearings, are preferably used in fans.
- the bearing means can advantageously also be integrated in the electric motor, so that the bearing means need not be mounted separately but are practically formed by the electric motor. It is also particularly advantageous if the electric motor is designed as a brushless external rotor motor.
- the rotor or the rotating magnets of the electric motor can also be arranged in the radially outer region of the fan wheel, so that the stator or the coils of the electric motor are located radially outside the fan wheel.
- the elastically resilient damping elements made of rubber or rubber material or of an elastically resilient plastic, in particular made of polyurethane.
- the present invention furthermore relates to a computer, in particular a PC, which contains a fan according to the invention of the type described above.
- FIG. 1 schematically shown axial fan 1 of conventional design has a manufactured from plastic cuboid fan housing 2, which in each case has a mounting hole as a fastening means 3 for attachment in a computer case, not shown here in the corners of its outer housing portion. From the outer housing portion extending four straight connecting arms 4 inwardly, at its inner End in a circular trained central storage area 5 of the fan housing 1 open.
- the connecting arms 4 extend in the embodiment shown here tangential to the bearing area 5. However, they can also extend in other directions, for example radially. Likewise, the connecting arms 4 can also be bent and / or provided in a different number.
- a fan 6 is rotatably mounted.
- a not-shown electric motor is provided in the fan housing 2, which is arranged completely or partially in or on the hub 7 and the storage area 5.
- the fan 6 is thus connected via the bearing means and the storage area 5 and the connecting arms 4 to the fan housing 2. By its rotation, the fan 6 generates the air movement required for cooling, the outer region of the fan housing 2 serves as Heilleitrahmen for the air flow. In this respect, fans 1 are generally known.
- damping elements 9 are arranged in the four corners of the fan housing 2.
- the damping elements 9 are then vulcanized onto the outer sides of the Heilleitrahmens 10.
- the Heilleitrahmen 10 of the fan housing 2 has viewed in the axial direction on the inside a surrounding the fan 6 round cross section and the outside a substantially octagonal cross-section, the four the Damping elements 9 facing sides 11 are made shorter than the four outer sides of the fan housing 2 forming sides 12th
- the damping elements 9 in the axial direction have a greater length than the Lucasleitrahmen 10 or as the fan housing 2.
- the damping elements 9 have a length of 25 mm, which corresponds to a standard width of axial fans for PCs, while the Heilleitrahmen 10 only one Width of 23 mm, so that the damping elements 9 project beyond the Lucasleitrahmen 10 at both ends axially by one millimeter.
- the fastening means 3 are also formed here by fastening bores, which are each arranged within an elastic damping element 9.
- each made of metal threaded sleeve 13 is cast with an internal thread in the respective elastic damping element 9 at each mounting hole 3, so that the attachment of the fan 1 in a computer case by means of metric Screws can be carried out very easily and safely.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Table Equipment (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft einen Axiallüfter nach dem Oberbegriff von Anspruch 1. Derartige Axiallüfter dienen zur Luftkühlung von wärmeerzeugenden Bauteilen. Vor allem werden sie als Computerlüfter zur Luftkühlung von elektrischen und/oder elektronischen Bauteilen in PCs oder Computern eingesetzt. Sie umfassen ein Lüftergehäuse mit einem axial durchströmbaren Luftleitrahmen, in dem ein Lüfterrad drehbar gelagert ist, wobei das Lüftergehäuse in axialer Richtung einen zumindest im wesentlichen rechteckigen Querschnitt aufweist und in seinen vier Eckbereichen mit Befestigungsmitteln zur unmittelbaren Befestigung an einem zu kühlenden Bauteil oder zur mittelbaren Befestigung an einem das zu kühlende Bauteil enthaltenden Gehäuse versehen ist. Vorzugsweise sind die Befestigungsmittel durch Befestigungsbohrungen gebildet, die in einem genormten Abstand derart angeordnet sind, dass der Lüfter mittels Schrauben an in dem Computergehäuse ebenfalls in dem genormten Abstand vorgesehenen Bohrungen befestigt werden kann. Die Befestigungsmittel können jedoch auch für andere Befestigungsarten, beispielsweise für Schnappverbindungen ausgelegt seinThe present invention relates to an axial fan according to the preamble of claim 1. Such axial fans are used for air cooling of heat generating components. Above all, they are used as computer fans for air cooling of electrical and / or electronic components in personal computers or computers. They include a fan housing with an axially durchströmbaren Luftleitrahmen in which a fan is rotatably mounted, wherein the fan housing in the axial direction has an at least substantially rectangular cross-section and in its four corners with fastening means for direct attachment to a component to be cooled or for indirect attachment is provided on a housing containing the component to be cooled. Preferably, the fastening means are formed by mounting holes which are arranged at a standard distance such that the fan can be fixed by means of screws in the computer housing also provided in the standard distance holes. However, the fastening means can also be designed for other types of fastening, for example for snap connections
Derartige Axiallüfter, die auch als Gehäuselüfter bezeichnet werden, sind allgemein bekannt. Sie werden insbesondere in Computern zur Kühlung bzw. zur Abführung der Wärme eingesetzt, die von Wärme erzeugenden Bauteilen, beispielsweise von Prozessoren, insbesondere über Kühlkörper abgegeben wird. Dazu wird durch Drehung des mit geeignet geformten Schaufeln bzw. Lüfterflügeln versehenen Lüfterrads ein Kühlluftstrom erzeugt, der in zumindest im wesentlichen axialer Richtung auf das Wärme abgebende und zu kühlende Bauteil gelenkt wird. Alternativ hierzu kann der Lüfter auch so angeordnet werden, dass er die das Wärme abgebende Bauteil umgebende Luft absaugt, um so die Wärme abzuführen. Derartige Lüfter können ferner auch an weiteren Chips, insbesondere an Grafikkarten, an Festplattenlaufwerken und/oder an Netzteilen eingesetzt werden. Außerdem können derartige Lüfter auch in anderen Geräten mit wärmeerzeugenden Bauteilen, beispielsweise in Projektoren eingesetzt werden.Such axial fans, which are also referred to as case fans, are well known. They are used in particular in computers for cooling or for dissipating the heat that is emitted by heat-generating components, for example, processors, in particular via heat sinks. For this purpose, a cooling air flow is generated by rotation of the provided with suitably shaped blades or fan blades fan, which is directed in at least substantially axial direction on the heat-releasing and to be cooled component. Alternatively, the fan can also be arranged so that it sucks the ambient air surrounding the heat-dissipating member, so as to dissipate the heat. Such fans may also be connected to other chips, in particular to graphics cards, to hard disk drives and / or to Power supplies are used. In addition, such fans can be used in other devices with heat-generating components, such as projectors.
Lüfter der eingangs genannten Art bestehen somit grundsätzlich aus zwei wesentlichen Hauptbaugruppen, nämlich dem Lüftergehäuse und der drehbar damit verbundenen Lüfterradeinheit. Während das Lüftergehäuse mit seinen äußern Bereichen oder mit seinem Luftleitrahmen der Montage des gebrauchsfertigen Lüfters dient, sorgt die Lüfterradeinheit mit ihren Lüfterflügeln durch ihre Drehung für die gewünschte Bewegung der Luft. Die Drehbewegung der Lüfterradeinheit wird üblicherweise durch einen im oder am Lüftergehäuse koaxial zum Lüfterrad angeordneten Elektromotor herbeigeführt.Fans of the type mentioned thus basically consist of two main main assemblies, namely the fan housing and the rotatable fan wheel unit connected thereto. While the fan housing with its outer areas or with its Luftleitrahmen the installation of the ready-to-use fan, the fan wheel unit ensures with their fan blades by their rotation for the desired movement of the air. The rotational movement of the fan wheel unit is usually brought about by an electric motor arranged coaxially with the fan wheel in or on the fan housing.
Aufgrund der steigenden Prozessorleistungen bei Computern und der damit einhergehenden steigenden Wärmeerzeugung, insbesondere auch bei sogenannter Übertaktung der CPU, wächst der Bedarf an effektiver Kühlung und somit auch die Anforderungen an die Leistung der Lüfter. Die Lüfter müssen daher zunehmend mit höheren Umdrehungszahlen betrieben werden. Gleichzeitig besteht jedoch ein verstärkter Bedarf an geräuscharmen Kühlmethoden und leiseren Lüftern.Due to the increasing processor performance in computers and the associated increase in heat generation, especially in so-called overclocking of the CPU, the need for effective cooling and thus also the demands on the performance of the fan is growing. The fans must therefore be increasingly operated at higher speeds. At the same time, however, there is an increased demand for low-noise cooling methods and quieter fans.
Die hohen Umdrehungszahlen des Lüfterrades von 1000 bis zu 4000 Umdrehungen pro Minute erzeugen teilweise starke Vibrationen, die auf das Lüftergehäuse übertragen werden und so zu störender Geräuschentwicklungen führen. Dem könnte zwar durch den Einsatz von hochwertigen und teuren Materialien begrenzt entgegengewirkt werden, da beispielsweise schwere bzw. glasfaserverstärkte Kunststoffe weniger schwingen als leichte, minderwertige Kunststoffe. Insbesondere hochfrequente Schwingungen können so verringert werden, wodurch der Lüfter leiser bzw. die hörbaren Frequenzen tiefer und damit als weniger störend empfunden werden. Letztendlich lassen sich jedoch die störenden Geräuschentwicklungen auch auf diese Weise nicht vollständig verhindern. Außerdem würde dies zu einer nachteiligen Kostenerhöhung der Lüfter führen.The high number of revolutions of the impeller from 1000 up to 4000 revolutions per minute generate partly strong vibrations which are transmitted to the fan housing and thus lead to disturbing noise developments. Although this could be counteracted by the use of high-quality and expensive materials limited because, for example, heavy or glass fiber reinforced plastics swing less than lightweight, low-quality plastics. In particular, high-frequency vibrations can be reduced so that the fan quieter and the audible frequencies are lower and thus perceived as less disturbing. Ultimately, however, the disturbing noise developments can not be completely prevented in this way. In addition, this would lead to a disadvantageous increase in the cost of the fan.
Die beim Betrieb mechanisch auf das Lüftergehäuse übertragenen Schwingungen bzw. Vibrationen erhöhen die Gesamtlautstärke des Lüfters je nach Drehzahl erheblich, da das Lüftergehäuse des Lüfters einen Resonanzkörper bildet. Wenn der Lüfter in einem meist aus Stahlblech bestehenden Computergehäuse montiert ist, was gewöhnlich durch eine feste Schnapp- oder Schraubenverbindung erfolgt, werden die Schwingungen auch auf das dann mitschwingende Computergehäuse übertragen, wodurch sich die Lautstärke nochmals erhöht. Die Schwingungsübertragung an das Computergehäuse erfolgt dabei durch den direkten Kontakt der schwingenden Kunststoffteile des Lüftergehäuses mit dem Computergehäuse. Da ein Computergehäuse ein sehr guter Resonanzkörper ist, werden die vom Lüfter verursachten hochfrequenten Schwingungen (Körperschall) durch das PC Gehäuse nochmals deutlich hörbar verstärkt.The mechanically transmitted to the fan housing during operation oscillations or vibrations increase the overall volume of the fan depending on the speed considerably, since the fan housing of the fan forms a resonator. If the fan is mounted in a computer housing, usually made of sheet steel, which is usually done by a fixed snap or screw connection, the vibrations are transmitted to the then resonating computer case, which again increases the volume. The vibration transmission to the computer case is carried out by the direct contact of the vibrating plastic parts of the fan housing with the computer case. Since a computer housing is a very good sound box, the high-frequency vibrations (structure-borne noise) caused by the fan are clearly audibly amplified by the PC housing.
Zur Verhinderung der Schwingungsübertragung auf das Computergehäuse ist es daher bekannt, den Lüfter schwingungsarm zu befestigen. Der Lüfter wird dabei nicht mit Metallschrauben, sondern über als separate Montagemittel zusätzlich anzubringende und speziell geformte Gummielemente befestigt, welche die Übertragung der Lüfterschwingungen auf das Computergehäuse verhindern sollen.To prevent the transmission of vibration to the computer case, it is therefore known to fasten the fan with little vibration. The fan is not fastened with metal screws, but attached as a separate mounting means additionally and specially shaped rubber elements, which should prevent the transmission of the fan vibrations to the computer case.
So wurde beispielsweise in der
Nachteilig bei diesen Lösungen ist es jedoch, dass auch hierbei das Lüftergehäuse noch als schwingender Resonanzkörper dient und daher beim Betrieb des Lüfters störende Geräusche deutlich wahrgenommen werden.A disadvantage of these solutions, however, is that here too the fan housing still serves as a resonating resonating body and therefore interfering noises are clearly perceived during operation of the fan.
Von besonderem Nachteil ist es aber, dass hier zusätzlich zum Lüfter separate Elastomerbauteile benötigt werden, wodurch sich die kosten deutlich erhöhen und die Montage des Lüfters im Computer schwieriger wird.Of particular disadvantage, however, is that in addition to the fan separate elastomer components are needed, which significantly increase the cost and the installation of the fan in the computer is difficult.
Ein weiterer Nachteil besteht in dem hierdurch benötigen zusätzlichen Einbauraum für die außerhalb des Lüftergehäuses befindlichen Elastomerbauteile, was gerade bei den beengten Platzverhältnissen in einem Computergehäuse ein erhebliches Problem darstellt.Another disadvantage is the additional installation space required for the elastomer components located outside of the fan housing, which represents a considerable problem, especially in the cramped space conditions in a computer housing.
Aus der
Auch die
Aufgabe der vorliegenden Erfindung ist es daher, einen preiswert herzustellenden und ohne zusätzliche Bauteile leicht montierbaren Lüfter der eingangs genannten Art zu schaffen, der auf konstruktiv einfache Weise eine wesentlich verbesserte Geräuschdämpfung hat und sehr leise im Betrieb ist, ohne dafür zusätzlichen Bauraum zu benötigen.Object of the present invention is therefore to provide an inexpensive to manufacture and easily assembled without additional components fan of the type mentioned above, which has a significantly improved noise reduction in a structurally simple manner and is very quiet in operation, without requiring additional space.
Diese Aufgabe wird erfindungsgemäß durch einen Lüfter nach Anspruch 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen.This object is achieved by a fan according to claim 1. Advantageous embodiments and modifications of the invention will become apparent from the dependent claims.
Wesentlich bei der erfindungsgemäßen Lösung ist es, dass vier elastische Dämpfungselemente derart in das Lüftergehäuse des Axiallüfters integriert sind, dass in den vier Eckbereichen jeweils ein elastisches Dämpfungselement vorgesehen ist, wobei die Befestigungsmittel zur Befestigung des Axiallüfters jeweils derart innerhalb eines elastischen Dämpfungselements angeordnet sind, dass das elastische Dämpfungselement zwischen dem Lüfterrad und dem jeweiligen Befestigungsmittel wirksam ist, wobei die Dämpfungselemente in Axialrichtung eine größere Länge haben als der Luftleitrahmen, so dass die Dämpfungselemente den Luftleitrahmen an beiden Stirnseiten um mindestens 0,5 Millimeter, vorzugsweise um mindestens 1 Millimeter axial überragen, wobei das Lüfterrad Lüfterflügel aufweist, deren Oberfläche einseitig oder beidseitig mit einer Vielzahl von kleinen lokalen Erhebungen und/oder kleinen lokalen Vertiefungen, insbesondere mit kalottenförmigen Einbuchtungen versehen ist, und wobei die elastischen Dämpfungselemente stoffschlüssig am Luftleitrahmen, insbesondere an den Außenseiten des Luftleitrahmens befestigt sind.It is essential in the solution according to the invention that four elastic damping elements are integrated into the fan housing of the axial fan, that in each of the four corners an elastic damping element is provided, wherein the fastening means for fixing the axial fan are each arranged within an elastic damping element that the elastic damping element between the fan and the respective fastening means is effective, wherein the damping elements in the axial direction have a greater length than the Luftleitrahmen, so that the damping elements axially project beyond the Luftleitrahmen at both ends by at least 0.5 millimeters, preferably at least 1 millimeter, wherein the fan has fan blades whose surface is provided on one side or on both sides with a plurality of small local elevations and / or small local depressions, in particular with dome-shaped indentations t, and wherein the elastic damping elements are firmly bonded to the Luftleitrahmen, in particular on the outer sides of the Luftleitrahmens.
Ein wesentlicher Vorteil liegt dabei darin, dass aufgrund des zwischen dem Lüfterrad und den Befestigungsmitteln zur Befestigung des Axiallüfters wirksamen Dämpfungselements das Lüfterrad bzw. die Lüfterradeinheit als schwingungserzeugende Komponente mechanisch vollständig von einem zur Befestigung des Lüfters dienenden Bauteil, insbesondere von einem den Lüfter aufnehmenden Computergehäuse entkoppelt ist. Deshalb können entstehende Schwingungen oder Vibrationen nicht mehr oder allenfalls in einem erheblich verringerten Umfang an ein äußeres Bauteil bzw. an ein Computergehäuse übertragen werden. Äußere Bauteile bzw. Computergehäuse stellen daher keine die Lautstärke verstärkenden Resonanzkörper mehr dar, wodurch die Lautstärke des Lüfters beim Betrieb erheblich reduziert wird. Insbesondere im als störend empfundenen Frequenzbereich ist so eine deutliche Geräuschdämpfung erzielbar.A significant advantage lies in the fact that due to the effective between the fan and the attachment means for fixing the axial damping damping element, the fan or the Lüfterradeinheit decoupled as a vibration-generating component mechanically completely from a serving for mounting the fan component, in particular from a computer housing receiving the fan is. Therefore, vibrations or vibrations that arise can no longer or at most be transmitted to a significantly reduced extent to an outer component or to a computer housing. Outer components or computer cases are therefore no longer amplifying the resonant body, whereby the volume of the fan during operation is considerably reduced. In particular, in perceived as annoying frequency range as a significant noise attenuation can be achieved.
Ein weiterer wesentlicher Vorteil besteht darin, dass aufgrund der vollständigen Integration des mindestens einen Dämpfungselements bzw. der vollständigen Integration aller Dämpfungselemente in den Lüfter weder zusätzlicher Bauraum noch separat zu montierende Elastomerelemente benötigt werden. Sämtliche Dämpfungselemente befinden sich in dem Lüftergehäuse, so dass der erfindungsgemäße Axiallüfter auf exakt die gleiche und vom Benutzer gewohnte Art und Weise montiert bzw. befestigt werden kann, wie die herkömmlichen Lüfter ohne integrierte Dämpfungselemente.Another significant advantage is that due to the complete integration of the at least one damping element or the complete integration of all damping elements in the fan neither additional space nor separately to be mounted elastomeric elements are needed. All damping elements are located in the fan housing, so that the axial fan according to the invention can be mounted or attached in exactly the same way and used by the user, as the conventional fan without integrated damping elements.
Auf diese konstruktiv einfache Weise wird ein Axiallüfter geschaffen, der nicht nur sehr leise läuft, sondern der auch kostengünstig herstellbar und schnell und einfach montierbar ist. Bei dem erfindungsgemäßen Lüfter sind sämtliche Dämpfungselemente in den Lüfter integriert, so dass keine separaten Dämpfungsbauteile mehr benötigt werden, über die der Lüfter im Computer befestigt werden muss. Der erfindungsgemäße Lüfter kann daher problemlos auf herkömmliche Weise durch Schnappverbindungen oder durch Schraubverbindungen in einem Computergehäuse montiert werden, wobei die herkömmlichen und genormt angeordneten Befestigungsbohrüngen genutzt werden können. Da sämtliche Dämpfungsmittel im Lüftergehäuses angeordnet sind, wird einerseits kein zusätzlicher Bauraum benötigt und kann andererseits eine unerwünschte Verstärkung der Vibrationen bzw. eine Erhöhung der Lautstärke des Lüfters wirkungsvoll vermieden werden.In this constructively simple manner, an axial fan is created, which not only runs very quietly, but is also inexpensive to produce and quick and easy to install. In the fan according to the invention all the damping elements are integrated into the fan, so that no separate damping components are needed more, via which the fan must be mounted in the computer. The fan according to the invention can therefore be easily mounted in a conventional manner by snap connections or by screw in a computer case, the conventional and standardized mounting Befestigungsbohrüngen can be used. Since all damping means are arranged in the fan housing, on the one hand no additional space is required and on the other hand, an unwanted amplification of the vibrations or an increase in the volume of the fan can be effectively avoided.
Ein weiterer wesentlicher Vorteil der erfindungsgemäßen Lösung, bei der in den vier Eckbereichen jeweils ein elastisches Dämpfungselement vorgesehen ist, wobei die Befestigungsmittel jeweils innerhalb eines elastischen Dämpfungselements angeordnet sind, liegt darin, dass durch die elastische Entkopplung der Befestigungselemente von dem Lüftergehäuse eine Übertragung der Schwingungen vom Lüftergehäuse auch auf das umgebende Computergehäuse besonders wirkungsvoll reduziert bzw. verhindert werden kann. Wesentlich ist es hierbei, dass jedes Befestigungsmittel, das zur Befestigung des Lüfters an einem zu kühlenden Bauteil oder an einem Computergehäuse verwendet wird, in einem Dämpfungselement aufgenommen ist, wobei die Dämpfungselemente wiederum innerhalb des Axiallüfters angeordnet sind.Another significant advantage of the inventive solution, in each of which an elastic damping element is provided in the four corner regions, wherein the fastening means are each disposed within an elastic damping element, is that by the elastic decoupling of the fastening elements of the fan housing, a transmission of the vibrations from Fan housing can be particularly effectively reduced or prevented on the surrounding computer case. It is essential in this case that each fastening means which is used for fastening the fan to a component to be cooled or to a computer housing, is accommodated in a damping element, wherein the damping elements are in turn disposed within the axial fan.
Ein weiterer wesentlicher Voteil der erfindungsgemäßen Lösung, bei der die Dämpfungselemente in Axialrichtung eine größere Länge haben als der Luftleitrahmen, so dass die Dämpfungselemente den Luftleitrahmen an beiden Stirnseiten axial überragen, besteht darin, dass sicher verhindert werden kann, dass der Axiallüfter bzw. sein Luftleitrahmen direkten axialen Kontakt zu einem Bauteil oder Gehäuse hat, an dem der Lüfter befestigt wird. Nur die elastischen Dämpfungselemente können axial in direkten Kontakt mit dem zu kühlenden Bauteil oder mit dem Computergehäuse kommen. Die Übertragung von Schwingungen auf ein zu kühlendes Bauteil oder auf ein den Lüfter enthaltendes Computergehäuse kann so besonders wirksam unterbunden werden.Another essential component of the inventive solution in which the damping elements in the axial direction have a greater length than the Luftleitrahmen so that the damping elements project beyond the Luftleitrahmen axially on both end faces, is that can be reliably prevented that the axial fan or its Luftleitrahmen has direct axial contact with a component or housing to which the fan is attached. Only the elastic damping elements can come into direct axial contact with the component to be cooled or with the computer housing. The transmission of vibrations to a component to be cooled or to a computer housing containing the fan can thus be effectively prevented.
Dadurch dass die Dämpfungselemente den Luftleitrahmen an beiden Stirnseiten axial überragen kann der Lüfter mit beiden Stirnseiten axial an ein Bauteil oder ein Computergehäuse angelegt und daran befestigt werden. Die Schwingungsentkopplung kann dabei unabhängig von der Orientierung des Lüfters bei seiner Montage erfolgen.The fact that the damping elements can project beyond the Luftleitrahmen axially on both end faces of the fan with both end faces axially applied to a component or a computer case and attached thereto. The vibration decoupling can be done regardless of the orientation of the fan during its assembly.
Und dadurch, dass die Dämpfungselemente den Luftleitrahmen an den Stirnseiten axial um mindestens 0,5 Millimeter, vorzugsweise um mindestens 1 Millimeter überragen, wird ein direkter Kontakt des Lüftergehäuses mit umgebenden Bauteilen oder Computergehäusen besonders sicher verhindert.And the fact that the damping elements project beyond the Luftleitrahmen at the end faces axially by at least 0.5 millimeters, preferably by at least 1 millimeter, a direct contact of the fan housing with surrounding components or computer housings is particularly safe prevented.
Noch ein weiterer wesentlicher Vorteil der erfindungsaemäßen Lösung, bei der das Lüfterrad Lüfterflügel aufweist, deren Oberfläche einseitig oder beidseitig mit einer Vielzahl von kleinen lokalen Erhebungen und/oder kleinen lokalen Vertiefungen, insbesondere mit kalottenförmigen Einbuchtungen versehen ist, liegt darin, dass durch die kleinen Einwölbungen der Luftwiderstand der Lüfterflügel bzw. Schaufeln reduziert wird, so dass die Geräusche beim Betrieb des Lüfters unabhängig von möglichen Schwingungen oder Vibrationen nochmals weiter reduziert werden können.Yet another significant advantage of erfindungsaemäßen solution in which the fan has fan blades whose surface is provided on one side or on both sides with a plurality of small local elevations and / or small local depressions, in particular with dome-shaped indentations, is that by the small indentations the air resistance of the fan blades or blades is reduced so that the noise during operation of the fan can be reduced even further regardless of possible vibrations or vibrations.
Ein zusätzlicher wesentlicher Vorteil der erfindungsgemäßen Lösung, bei der die elastischen Dämpfungselemente stoffschlüssig am Luftleitrahmen, insbesondere an den Außenseiten des Luftleitrahmens befestigt sind, besteht darin, dass insbesondere durch Kleben oder Aufvulkanisieren eine besonders kostengünstige Herstellung der erfindungsgemäßen Axiallüfter erreicht werden kann.An additional significant advantage of the solution according to the invention, in which the elastic damping elements are firmly bonded to the air guide frame, in particular on the outer sides of the Luftleitrahmens, is to that a particularly cost-effective production of the axial fans according to the invention can be achieved in particular by gluing or vulcanization.
Gemäß einer weiteren vorteilhaften Ausführungsform der Erfindung kann der Luftleitrahmen in Axialrichtung betrachtet zumindest annähernd einen achteckigen Querschnitt aufweisen, wobei die elastischen Dämpfungselemente jeweils einen zumindest annähernd dreieckigen Querschnitt haben. Auch können die den Dämpfungselementen zugewandten Seiten abgerundet sein oder der Luftleitrahmen kann insgesamt einen runden Querschnitt aufweisen, wobei die Dämpfungselemente jeweils einen zumindest annähernd dreieckigen Querschnitt mit konkav gewölbter Grundseite haben. Durch diese Anordnung wird eine besonders gute Dämpfungswirkung erzielt.According to a further advantageous embodiment of the invention, the Luftleitrahmen viewed in the axial direction, at least approximately have an octagonal cross section, wherein the elastic damping elements each have an at least approximately triangular cross-section. Also, the sides facing the damping elements may be rounded or the Luftleitrahmen may have a total of a round cross-section, wherein the damping elements each have an at least approximately triangular cross-section with a concavely curved base side. By this arrangement, a particularly good damping effect is achieved.
Die Befestigungsmittel sind vorzugsweise durch Bohrungen gebildet. Je nach Art und Material des-eingesetzten Dämpfungselementes können dabei zur Befestigung des Lüfters selbstschneidende Schrauben verwendet werden. Bei weniger stabilen Materialen der Dämpfungselemente oder wenn eine mehrfache Montierbarkeit gewünscht ist, ist es dabei besonders vorteilhaft, wenn die Befestigungsbohrungen jeweils eine in dem jeweiligen elastischen Dämpfungselement aufgenommene oder eingegossene, vorzugsweise aus Metall oder Kunststoff bestehende, Gewindehülse mit einem Innengewinde umfassen. In diesem Fall können dann dem Innengewinde entsprechende, insbesondere metrische Schrauben zur sicheren Befestigung des Lüfters verwendet werden.The fastening means are preferably formed by bores. Depending on the type and material of the damping element used self-tapping screws can be used to attach the fan. For less stable materials of the damping elements or if a multiple mountability is desired, it is particularly advantageous if the mounting holes each comprise a recorded or cast in the respective elastic damping element, preferably made of metal or plastic, threaded sleeve having an internal thread. In this case, then the internal thread corresponding, in particular metric screws can be used for secure attachment of the fan.
Als Lagermittel kommen bei Lüftern vorzugsweise Gleitlager und/oder Wälzlager, insbesondere Kugellager zum Einsatz. Bei dem erfindungsgemäßen Axiallüfter können die Lagermittel jedoch vorteilhafterweise auch in den Elektromotor integriert sein, so dass die Lagermittel nicht separat montiert werden müssen sondern praktisch durch den Elektromotor gebildet werden. Dabei ist es weiterhin besonders günstig, wenn der Elektromotor als bürstenloser Außenläufermotor ausgeführt ist.As bearing means, fans and / or roller bearings, in particular ball bearings, are preferably used in fans. In the axial fan according to the invention, however, the bearing means can advantageously also be integrated in the electric motor, so that the bearing means need not be mounted separately but are practically formed by the electric motor. It is also particularly advantageous if the electric motor is designed as a brushless external rotor motor.
Selbstverständlich können im Rahmen der vorliegenden Erfindung auch andere Arten von Elektromotoren zum Einsatz kommen. Beispielsweise kann der Rotor bzw. die rotierenden Magnete des Elektromotors auch im radial äußeren Bereich des Lüfterrades angeordnet sein, so dass sich der Stator bzw. die Spulen des Elektromotors radial außerhalb des Lüfterrades befinden.Of course, in the context of the present invention, other types of electric motors can be used. For example, the rotor or the rotating magnets of the electric motor can also be arranged in the radially outer region of the fan wheel, so that the stator or the coils of the electric motor are located radially outside the fan wheel.
Gemäß einer bevorzugten Ausführungsform der Erfindung können die elastisch federnden Dämpfungselemente aus Gummi oder Kautschukmaterial oder aus einem elastisch federnden Kunststoff, insbesondere aus Polyurethan bestehen.According to a preferred embodiment of the invention, the elastically resilient damping elements made of rubber or rubber material or of an elastically resilient plastic, in particular made of polyurethane.
Gegenstand der vorliegenden Erfindung ist ferner ein Computer, insbesondere ein PC, der einen erfindungsgemäßen Lüfter der voranstehend beschriebenen Art enthält.The present invention furthermore relates to a computer, in particular a PC, which contains a fan according to the invention of the type described above.
Weitere Vorteile und Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung und den in den Zeichnungen dargestellten Ausführungsbeispielen.Further advantages and features of the invention will become apparent from the following description and the embodiments illustrated in the drawings.
Es zeigen:
- Figur 1:
- schematische Darstellung eines Lüfters gemäß dem vorbekannten Stand der Technik;
- Figur 2:
- schematische Darstellung einer weiteren Ausführungsvariante eines erfindungsgemäßen Lüfters; und
- Figur 3:
- schematische Darstellung des Querschnitts des Lüfters aus
Figur 2 .
- FIG. 1:
- schematic representation of a fan according to the prior art;
- FIG. 2:
- schematic representation of another embodiment of a fan according to the invention; and
- FIG. 3:
- schematic representation of the cross section of the fan off
FIG. 2 ,
Der in
Die Verbindungsarme 4 erstrecken sich in dem hier dargestellten Ausführungsbeispiel tangential zum Lagerbereich 5. Sie können jedoch auch in anderen Richtungen, beispielsweise radial verlaufen. Ebenso können die Verbindungsarme 4 auch gebogen ausgeführt und/oder in einer anderen Anzahl vorgesehen sein.The connecting
An dem zentralen Lagerbereich 5 ist ein Lüfterrad 6 drehbar befestigt. Dazu ist die Nabe 7, von der aus sich die Lüfterflügel 8 nach außen erstrecken, in nicht näher dargestellten Lagermitteln gelagert. Zum Antrieb des Lüfterrades 6 ist in dem Lüftergehäuse 2 ein nicht näher dargestellter Elektromotor vorgesehenen, der vollständig oder teilweise in oder an der Nabe 7 sowie am Lagerbereich 5 angeordnet ist.At the central storage area 5, a
Das Lüfterrad 6 ist somit über die Lagermittel und den Lagerbereich 5 sowie die Verbindungsarme 4 mit dem Lüftergehäuse 2 verbunden. Durch seine Drehung erzeugt das Lüfterrad 6 die zur Kühlung benötigte Luftbewegung, wobei der äußere Bereich des Lüftergehäuses 2 als Luftleitrahmen für den Luftstrom dient. Insofern sind Lüfter 1 allgemein bekannt.The
Um einen besonders leisen Lüfterbetrieb zu ermöglichen ist erfindungsgemäß vorgesehen, dass innerhalb des Lüftergehäuses 2 zwischen dem Lüftergehäuse 2 und den Lagermitteln für das Lüfterrad 6 elastisch federnde Dämpfungselemente 9 als Schwingungspuffer angeordnet sind.In order to allow a particularly quiet fan operation is inventively provided that within the
Bei der in
Wie in
Die Befestigungsmittel 3 sind auch hier durch Befestigungsbohrungen gebildet, die jeweils innerhalb eines elastischen Dämpfungselements 9 angeordnet sind. Um eine besonders sichere und auch mehrfache Befestigung des Lüfters 1 gewährleisten zu können, ist an jeder Befestigungsbohrung 3 jeweils eine aus Metall gefertigte Gewindehülse 13 mit einem Innengewinde in das jeweilige elastische Dämpfungselement 9 eingegossen, so dass die Befestigung des Lüfters 1 in einem Computergehäuse mittels metrischer Schrauben besonders einfach und sicher ausgeführt werden kann.The fastening means 3 are also formed here by fastening bores, which are each arranged within an elastic damping
Bei dem erfindungsgemäßen Ausführungsbeispiel gemäß den
Claims (5)
- Axial-flow fan (1) for the ventilation of heat generating components, in particular computer fans for the ventilation of electrical and/or electronic components in a computer, comprising a fan housing (2) with an air guide frame (10), which may be axially flowed-through, in which a fan impeller (6) is rotatably mounted, the fan housing (2) having in the axial direction an at least substantially rectangular cross-section and being provided in the four corner regions thereof with fastening means (3), in particular with fastening holes, for directly fastening to a component to be cooled or for indirectly fastening to a housing containing the component to be cooled,
characterised in that
four elastic damping elements (9) are incorporated in the fan housing (2) of the axial-flow fan (1) such that one elastic damping element (9) is provided in each of the four corner regions respectively,
the fastening means (3) for fastening the axial-flow fan (1) being respectively arranged inside an elastic damping element (9) such that the elastic damping element (9) is effective between the fan impeller (6) and the respective fastening means (3),
the damping elements (9) being of greater length in the axial direction than the fan guide frame (10), so that the damping elements (9) axially project beyond the air guide frame (10) on both front faces by at least 0.5 millimetres, preferably by at least 1 millimetre,
the fan impeller comprising fan blades, of which the upper surface is provided on one side or on both sides with a plurality of small local raised portions and/or small local recesses, in particular with spherical-shaped notches,
the elastic damping elements (9) being integrally fastened to the air guide frame (10), in particular to the outer faces of the air guide frame (10). - Fan according to claim 1, characterised in that, viewed in the axial direction, the air guide frame (10) has at least approximately an octagonal or round cross-section and in that the elastic damping elements (9) respectively have an at least approximately triangular cross-section and/or an at least approximately triangular cross-section with a concave curved bottom face.
- Fan according to one of the preceding claims, characterised in that the fastening means (3) are formed by holes which comprise one respective threaded bush (13) with an internal thread, received or cast in the respective elastic damping element (9) and preferably consisting of metal or plastic.
- Fan according to one of the preceding claims, characterised in that the elastic damping elements (9) consist of rubber or caoutchouc material or an elastically flexible plastic.
- Computer, in particular PC, characterised in that it contains a fan (1) according to one of the preceding claims.
Applications Claiming Priority (1)
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DE102004034472A DE102004034472A1 (en) | 2004-07-15 | 2004-07-15 | Steamed fan |
Publications (3)
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EP1617085A1 EP1617085A1 (en) | 2006-01-18 |
EP1617085B1 EP1617085B1 (en) | 2007-04-11 |
EP1617085B2 true EP1617085B2 (en) | 2017-01-11 |
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EP05014242.1A Active EP1617085B2 (en) | 2004-07-15 | 2005-06-30 | Damped fan |
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EP (1) | EP1617085B2 (en) |
AT (1) | ATE359446T1 (en) |
DE (2) | DE102004034472A1 (en) |
ES (1) | ES2285608T3 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007018680A1 (en) * | 2007-04-20 | 2008-10-23 | Daimler Ag | Blower for storage on a vehicle seat |
DE102008032439A1 (en) * | 2008-07-10 | 2010-01-14 | Spiess, Heike | Axial fan for air cooling of e.g. electronic component in personal computer, has fastening point movably arranged at housing structure in such manner that distance of fastening point to another fastening point is changeable |
CN201650793U (en) * | 2009-12-21 | 2010-11-24 | 北京市九州风神科贸有限责任公司 | Cooling fan |
DE102011103571A1 (en) | 2011-05-30 | 2012-12-06 | Listan-Gmbh & Co. Kg | Axial blower for use in computer, has fan holding frame having receiving slot which is extended transversely to longitudinal direction of through-hole in assembled state of fastening element |
DE102012111640B4 (en) * | 2012-11-30 | 2022-12-01 | HELLA GmbH & Co. KGaA | Device for fastening a fan |
CN103470537B (en) * | 2013-10-09 | 2016-08-17 | 广新海事重工股份有限公司 | A kind of fan shock-absorbing denoising device |
CN104791271A (en) * | 2015-03-02 | 2015-07-22 | 周玉红 | Oil seal edge trimmer low-noise cooling fan |
CN106151106B (en) | 2015-04-10 | 2019-05-07 | 讯凯国际股份有限公司 | The shell and its manufacturing method of active element |
TWI663815B (en) * | 2018-01-12 | 2019-06-21 | 元山科技工業股份有限公司 | Damping fan |
TWI785947B (en) * | 2021-12-27 | 2022-12-01 | 元山科技工業股份有限公司 | Shock absorbing fan housing |
DE102022110439A1 (en) | 2022-04-28 | 2023-11-02 | Alphacool International Gmbh | Fan to create a cooling airflow |
DE202023105352U1 (en) | 2023-09-14 | 2023-10-12 | Alphacool International Gmbh | Fan to create a cooling airflow |
Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3926537A (en) † | 1973-05-14 | 1975-12-16 | James Piper | Air blower |
DE4137465A1 (en) † | 1991-11-14 | 1993-05-27 | Licentia Gmbh | SINGLE-SIDED ATTACHMENT OF A STATOR OF A BRUSHLESS DC MOTOR TO A HOUSING PART |
DE3347360C2 (en) † | 1983-12-28 | 1995-04-13 | Papst Motoren Gmbh & Co Kg | Brushless external rotor DC motor |
EP0926803A2 (en) † | 1997-12-24 | 1999-06-30 | ebm Werke GmbH & Co. | Device for vibration-isolating mount of a motor |
EP0871278B1 (en) † | 1997-04-08 | 2001-10-10 | ebm Werke GmbH & Co. KG | Assembly for the vibration free suspension of an electrical motor |
CN2461058Y (en) † | 2000-12-25 | 2001-11-21 | 神达电脑股份有限公司 | Fixing structure of CPU heat sink |
WO2001098666A1 (en) † | 2000-06-20 | 2001-12-27 | General Electric Company | Methods and apparatus for reducing vibrations induced within fan assemblies |
CN2480899Y (en) † | 2001-02-27 | 2002-03-06 | 大众电脑股份有限公司 | Structure improved cooling device |
DE10020878C2 (en) † | 2000-04-28 | 2002-05-02 | Verax Ventilatoren Gmbh | Fans, in particular for ventilating electronic devices |
DE10128535A1 (en) † | 2000-06-19 | 2002-07-11 | Bosch Gmbh Robert | Device for the vibration-isolating mounting of an electric motor |
EP1056185B1 (en) † | 1999-05-26 | 2003-10-22 | ebm Werke GmbH & Co. KG | Anti-vibration mounting arrangement for an electric motor |
CN1456037A (en) † | 2001-03-03 | 2003-11-12 | 扎尔曼技术株式会社 | Heatsink and heatsink device using the heatsink |
EP1404008A2 (en) † | 2002-09-30 | 2004-03-31 | ebm-papst Mulfingen GmbH & Co.KG | Electric motor with screwless plug-in mounting |
CN2625959Y (en) † | 2003-05-14 | 2004-07-14 | 元山科技工业股份有限公司 | Shock suction and combination device for heatradiating fan and baseplate |
CN2627262Y (en) † | 2003-05-14 | 2004-07-21 | 元山科技工业股份有限公司 | Combined shock absorbing apparatus for thermal fan and base plate |
CN2668903Y (en) † | 2003-09-11 | 2005-01-05 | 陈正钢 | Radiating fan with shock-absorbing bushing |
TWI254452B (en) † | 2004-01-21 | 2006-05-01 | Sanyo Electric Co | Insulation gate type semiconductor device and its manufacture method |
TWI273272B (en) † | 2005-09-21 | 2007-02-11 | Inventec Appliances Corp | Position system and method thereof |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH662623A5 (en) | 1981-10-08 | 1987-10-15 | Wright Barry Corp | INSTALLATION FRAME FOR A FAN. |
US4807718A (en) | 1987-03-18 | 1989-02-28 | Digital Equipment Corporation | Acoustic noise control for fans |
DE3809627A1 (en) * | 1988-03-22 | 1989-10-05 | Semperit Ag Holding | Mounting module for blowers |
DE3926537C2 (en) * | 1989-08-11 | 1994-02-10 | Fulgurit Baustoffe Gmbh | Fastener |
US6351380B1 (en) * | 1999-11-12 | 2002-02-26 | Dell Products, L.P. | Cooling fan mounting arrangement |
DE20120225U1 (en) * | 2001-12-13 | 2002-02-28 | Verax Ventilatoren GmbH, 78052 Villingen-Schwenningen | Fan |
BR0201397B1 (en) * | 2002-04-19 | 2011-10-18 | Mounting arrangement for a cooler fan. | |
CN2625958Y (en) | 2003-05-14 | 2004-07-14 | 元山科技工业股份有限公司 | Shock suction and combination device for heatradiating fan and baseplate |
-
2004
- 2004-07-15 DE DE102004034472A patent/DE102004034472A1/en not_active Withdrawn
-
2005
- 2005-06-30 ES ES05014242T patent/ES2285608T3/en active Active
- 2005-06-30 EP EP05014242.1A patent/EP1617085B2/en active Active
- 2005-06-30 AT AT05014242T patent/ATE359446T1/en active
- 2005-06-30 DE DE502005000572T patent/DE502005000572D1/en active Active
Patent Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3926537A (en) † | 1973-05-14 | 1975-12-16 | James Piper | Air blower |
DE3347360C2 (en) † | 1983-12-28 | 1995-04-13 | Papst Motoren Gmbh & Co Kg | Brushless external rotor DC motor |
DE4137465A1 (en) † | 1991-11-14 | 1993-05-27 | Licentia Gmbh | SINGLE-SIDED ATTACHMENT OF A STATOR OF A BRUSHLESS DC MOTOR TO A HOUSING PART |
EP0871278B1 (en) † | 1997-04-08 | 2001-10-10 | ebm Werke GmbH & Co. KG | Assembly for the vibration free suspension of an electrical motor |
EP0926803A2 (en) † | 1997-12-24 | 1999-06-30 | ebm Werke GmbH & Co. | Device for vibration-isolating mount of a motor |
EP1056185B1 (en) † | 1999-05-26 | 2003-10-22 | ebm Werke GmbH & Co. KG | Anti-vibration mounting arrangement for an electric motor |
DE10020878C2 (en) † | 2000-04-28 | 2002-05-02 | Verax Ventilatoren Gmbh | Fans, in particular for ventilating electronic devices |
DE10128535A1 (en) † | 2000-06-19 | 2002-07-11 | Bosch Gmbh Robert | Device for the vibration-isolating mounting of an electric motor |
WO2001098666A1 (en) † | 2000-06-20 | 2001-12-27 | General Electric Company | Methods and apparatus for reducing vibrations induced within fan assemblies |
CN2461058Y (en) † | 2000-12-25 | 2001-11-21 | 神达电脑股份有限公司 | Fixing structure of CPU heat sink |
CN2480899Y (en) † | 2001-02-27 | 2002-03-06 | 大众电脑股份有限公司 | Structure improved cooling device |
CN1456037A (en) † | 2001-03-03 | 2003-11-12 | 扎尔曼技术株式会社 | Heatsink and heatsink device using the heatsink |
EP1404008A2 (en) † | 2002-09-30 | 2004-03-31 | ebm-papst Mulfingen GmbH & Co.KG | Electric motor with screwless plug-in mounting |
CN2625959Y (en) † | 2003-05-14 | 2004-07-14 | 元山科技工业股份有限公司 | Shock suction and combination device for heatradiating fan and baseplate |
CN2627262Y (en) † | 2003-05-14 | 2004-07-21 | 元山科技工业股份有限公司 | Combined shock absorbing apparatus for thermal fan and base plate |
CN2668903Y (en) † | 2003-09-11 | 2005-01-05 | 陈正钢 | Radiating fan with shock-absorbing bushing |
TWI254452B (en) † | 2004-01-21 | 2006-05-01 | Sanyo Electric Co | Insulation gate type semiconductor device and its manufacture method |
TWI273272B (en) † | 2005-09-21 | 2007-02-11 | Inventec Appliances Corp | Position system and method thereof |
Also Published As
Publication number | Publication date |
---|---|
ATE359446T1 (en) | 2007-05-15 |
DE502005000572D1 (en) | 2007-05-24 |
DE102004034472A1 (en) | 2006-02-09 |
EP1617085A1 (en) | 2006-01-18 |
EP1617085B1 (en) | 2007-04-11 |
ES2285608T3 (en) | 2007-11-16 |
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