EP1526287A1 - Fan with fastening element and method to its assembly - Google Patents

Fan with fastening element and method to its assembly Download PDF

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Publication number
EP1526287A1
EP1526287A1 EP04020507A EP04020507A EP1526287A1 EP 1526287 A1 EP1526287 A1 EP 1526287A1 EP 04020507 A EP04020507 A EP 04020507A EP 04020507 A EP04020507 A EP 04020507A EP 1526287 A1 EP1526287 A1 EP 1526287A1
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EP
European Patent Office
Prior art keywords
fan
fastening element
cross
mounting
channel
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
Application number
EP04020507A
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German (de)
French (fr)
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EP1526287B1 (en
Inventor
Wolfgang Arno Winkler
Nils Rapp
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Ebm Papst St Georgen GmbH and Co KG
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Ebm Papst St Georgen GmbH and Co KG
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Publication of EP1526287A1 publication Critical patent/EP1526287A1/en
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Publication of EP1526287B1 publication Critical patent/EP1526287B1/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/60Mounting; Assembling; Disassembling
    • F04D29/64Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646Mounting or removal of fans

Definitions

  • the invention relates to a fan with at least one fastening element, and a method for mounting such a fan.
  • the power consumption of such fans is at the series 250 at 0.4 to 0.6 W, for the 400F series at 0.7 to 0.9 W, and for the 400 and 600 series at 0.9 to 1,6 W.
  • the fan is a small or micro fan, which as axial, Diagonal or radial fan can be formed.
  • Fig. 1 shows a mini-fan 3 with a fan 31, the fan 3 has an outer casing 2, within which the fan 31 rotates, and on the circumference of the outer casing 2, a support 1 is mounted from an elastomeric material in the manner shown.
  • the outer housing 2 is enclosed by this elastic support 1 at its periphery by the projections 8. and the elastically deformable support 1 is, for. B. by a slight bias, positively and non-positively held on the outer housing 2.
  • Fig. 1 shows the use of three fasteners 7 as an example.
  • a strain relief 6 for a connection cable (not shown) of the mini-fan 3 is arranged.
  • the Strain relief 6 has an eyelet 61 through which the connection cable is passed.
  • Fig. 2 shows a section through the mini-fan 3 of Fig. 1.
  • About the outer edges 9 of the outer case 2 protrude projections 8 of the elastic pad 1.
  • this is stretched, whereby the mini-fan 3 inserted are can.
  • the support 1 is relaxed, whereby it lays around the mini-fan 3 with bias.
  • it can also be vulcanized onto the outer housing.
  • the elastic material of the support 1 and the fastening elements 7 causes an attenuation of noise and vibration, as in the course of the Mini fans 3 arise.
  • an elastomer, foam or other substances with similar elastic Properties are used as a material for the support 1 and the fasteners 7 rubber.
  • the holder of the mini-fan 3 on a support wall 4 takes place with the Fasteners 7. These have shown in FIG. 12 to 14 a Shank portion 71 and a head portion 72, between which preferred a constriction 73 is located.
  • the head portions 72 each act with one Recess 41 in the support wall 4 such that the elastic Support 1 is held together with the housing part 2 on the support wall 4, in particular form-fitting and with elastic contact pressure. This will Explained below with reference to FIGS. 4 to 11.
  • FIG. 3 shows a side view of the elastic support 1, seen in the direction of the arrows III-III of FIG. 1
  • Fig. 4 shows a wall 4 with a recess 43 to which a mini-fan 3 can be mounted by means of its fastening elements 7 in a very simple manner.
  • fastening recesses 41 are provided on this wall 4, and these act together with the fastening elements 7 during assembly.
  • the mounting recesses 41 have a diameter D2 which is smaller than the diameter D1 of the mushroom-shaped head portions 32, which is shown in Fig. 2.
  • Recess 42 is provided, which for the implementation of the connection cable and for receiving the strain relief 6, 61 is used.
  • Fig. 5 shows a plan view obliquely from above on the mounting side "a” opposite side “b” and on a mounted there mini fan 3.
  • the mushroom-shaped head portions 72 project beyond the mounting recesses 41 and cover them.
  • Fig. 6 shows a plan view of the mounting side "a" of the support wall 4, ie on the side from which the fan 3 is attached.
  • channels 74 are visible, which are arranged centrally in the fastening elements 7 and serve for mounting the fastening elements 7 on the wall 4, as will be described below with reference to FIGS. 12 to 14.
  • Fig. 7 shows a plan view of the side "b" of the support wall 4, which is opposite to the mounting side "a".
  • Fig. 8 shows a section analogous to Fig. 2 through the wall 4 and attached to her mini fan 3.
  • the only parts that are in contact with the wall 4, are the parts of the elastomeric pad 1. This prevents or reduces the transmission of vibration and noise from the mini-fan 3 on the wall 4, and you get a good seal.
  • Fig. 9 shows a side view of the mounted fan 3 and its elastomeric support 1.
  • Fig. 10 shows an analogous view, but seen from another direction, and
  • Fig. 11 also shows a side view of the mounted fan 3, but from yet another direction ,
  • FIGS. 12 to 14 A preferred method for mounting the fastening elements 7 on the wall 4 is shown in more detail in FIGS. 12 to 14 .
  • the shaft 71 has a fastening element 7 a tapered point 73, which can also be referred to as a constriction and whose length is adapted to the thickness of the wall 4.
  • a constriction 73 By means of this constriction 73, a positive fit occurs in all directions.
  • the channel 74 is opposite to the mushroom-shaped head portion 72 Page 75 and ends at the other side 76 in the interior of the Head portion 72.
  • the channel 74 which is parallel to the longitudinal axis of Fastening element 7 runs, is a during assembly from below rod-shaped tool 10 introduced, see. Fig. 12.
  • the tool 10 is inserted so far into the channel 74, that the Fixing element 7 elastically deformed in the manner shown. Thereby decreases its outer diameter accordingly, and the part laces especially in the area of rejuvenation 73.
  • the fastening element 7 in the manner shown in the direction an arrow 11 are inserted into the mounting recess 41, as in Fig. 12, after which the rod-shaped tool 10 in the direction of a Arrow 12 is pulled out of the fastener 7 out. hereby takes the fastener 7 back to its original shape, as in Fig. 14, and the head portion 72 of the fastener 7 is anchored positively in the mounting recess 41.
  • mushroom-shaped head portion 72 also becomes a cross-sectional enlarged portion 72 designated, since its cross-sectional area is greater than that of the tapered Position 73 and shaft 71.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Connection Of Plates (AREA)
  • Insertion Pins And Rivets (AREA)
  • Sheet Holders (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

The fan (3) has mounting components (7) for mounting the fan at a mounting opening. Each mounting component is made of elastomeric material, and formed with a shaft portion (71) and a head portion (72). Each mounting component has an internal channel having a closed end adjacent the head portion, and an open end remote from the head portion. The shaft portion and head portion cooperate with each other to secure the fan in position upon mounting the fan within the mounting opening. An independent claim is also included for the fan mounting method.

Description

Die Erfindung betrifft einen Lüfter mit mindestens einem Befestigungselement, sowie ein Verfahren zur Montage eines solchen Lüfters.The invention relates to a fan with at least one fastening element, and a method for mounting such a fan.

Minilüfter, auch Klein- oder Kleinstlüfter genannt, dienen z.B. zur Kühlung von Prozessoren in Computern, zur Gerätekühlung bei kleinen Geräten, etc., und sie haben sehr kleine Abmessungen. Beispielsweise haben die Lüfter

  • der ebm-papst-Serie 250 Abmessungen von 8 x 25 x 25 mm,
  • der ebm-papst-Serie 400F Abmessungen von 10 x 40 x 40 mm,
  • der ebm-papst-Serie 400 von 20 x 40 x 40 mm, und
  • die Lüfter der ebm-papst-Serie 600 von 25,4 x 60 x 60 mm.
Mini fans, also called small fans or miniature fans, are used, for example, for cooling processors in computers, for cooling devices in small devices, etc., and they have very small dimensions. For example, the fans have
  • the ebm-papst 250 series measures 8 x 25 x 25 mm,
  • the ebm-papst series 400F dimensions of 10 x 40 x 40 mm,
  • the ebm-papst series 400 of 20 x 40 x 40 mm, and
  • the fans of the ebm-papst series 600 of 25.4 x 60 x 60 mm.

Die Leistungsaufnahme solcher Lüfter liegt bei der Serie 250 bei 0,4 bis 0,6 W, bei der Serie 400F bei 0,7 bis 0,9 W, und bei den Serien 400 und 600 bei 0,9 bis 1,6 W.The power consumption of such fans is at the series 250 at 0.4 to 0.6 W, for the 400F series at 0.7 to 0.9 W, and for the 400 and 600 series at 0.9 to 1,6 W.

Bei Minilüftern ist es derzeit üblich, sie mittels Schrauben oder Nieten zu befestigen. Dies hat jedoch den Nachteil, dass über solche Befestigungen Körperschall, also Laufgeräusche und Vibrationen, vom Lüfter auf eine den Lüfter tragende Wand übertragen werden kann, was die Geräusche verstärkt. Zudem ist die bekannte Art der Befestigung kostenaufwändig, da sie mehrere Positionierungs- und Befestigungsschritte benötigt.With mini fans, it is currently common to fasten them by means of screws or rivets Fasten. However, this has the disadvantage that about such fasteners Structure-borne noise, ie running noise and vibrations, from the fan to the one Fan bearing wall can be transmitted, which amplifies the noise. In addition, the known type of attachment is costly because they have several Positioning and mounting steps required.

Es ist deshalb eine Aufgabe der Erfindung, einen neuen Lüfter und ein Verfahren zu seiner Montage bereit zu stellen.It is therefore an object of the invention to provide a novel fan and method to provide for its assembly.

Diese Aufgabe wird nach der Erfindung gelöst durch einen Lüfter nach Anspruch 1 und ein Verfahren zur Montage eines Lüfters nach Anspruch 9. Dies ermöglicht eine sehr einfache und zeitsparende Befestigung solcher kleinen Lüfter.This object is achieved according to the invention by a fan according to claim 1 and a method for mounting a fan according to claim 9. This allows a very simple and time-saving attachment of such small fan.

Bevorzugt ist dabei der Lüfter ein Klein- oder Kleinstlüfter, welcher als Axial-, Diagonal- oder Radiallüfter ausgebildet sein kann. Preferably, the fan is a small or micro fan, which as axial, Diagonal or radial fan can be formed.

Weitere Einzelheiten und vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den im Folgenden beschriebenen und in der Zeichnung dargestellten, in keiner Weise als Einschränkung der Erfindung zu verstehenden Ausführungsbeispielen, sowie aus den Unteransprüchen. Es zeigt:

Fig. 1
eine Draufsicht auf einen erfindungsgemäßen Lüfter,
Fig. 2
einen Schnitt, gesehen längs der Linie II-II der Fig. 1,
Fig. 3
eine Seitenansicht des Lüfters der Fig. 1, gesehen in Blickrichtung III der Fig. 1,
Fig. 4
eine Draufsicht auf eine Wand mit Öffnungen zur Befestigung eines Lüfters nach den Figuren 1 bis 3,
Fig. 5
eine perspektivische Darstellung eines an einer Wand gemäß Fig. 4 befestigten Minilüfters,
Fig. 6
eine Draufsicht auf die Anordnung gemäß Fig. 5, von der Montageseite her gesehen,
Fig. 7
eine Draufsicht analog Fig. 6, aber von der der Montageseite gegenüber liegenden Seite her gesehen,
Fig. 8
einen Schnitt, gesehen längs der Linie VIII-VIII der Fig. 7,
Fig. 9
eine Seitenansicht des Lüfters, gesehen in Blickrichtung IX der Fig. 7,
Fig. 10
eine Seitenansicht des Lüfters, gesehen in Richtung eines Pfeiles X der Fig. 7,
Fig. 11
eine Seitenansicht des Lüfters, gesehen in Blickrichtung XI der Fig. 7,
Fig. 12
ein Stadium eines erfindungsgemäßen Verfahrens, bei welchem ein am Lüfter vorgesehenes Befestigungselement durch einen Stab 10 elastisch verformt ist,
Fig. 13
ein Stadium eines erfindungsgemäßen Verfahrens, bei welchem das elastisch verformte Befestigungselement in eine Befestigungsausnehmung eingeführt wird, und
Fig. 14
ein Stadium des Verfahrens, bei welchem das Befestigungselement formschlüssig an einer Trägerwand befestigt ist.
Further details and advantageous developments of the invention will become apparent from the hereinafter described and illustrated in the drawings, in no way as a limitation of the invention to be understood embodiments, and from the dependent claims. It shows:
Fig. 1
a top view of a fan according to the invention,
Fig. 2
a section, taken along the line II-II of Fig. 1,
Fig. 3
1 is a side view of the fan of FIG. 1, looking in the viewing direction III of FIG. 1,
Fig. 4
3 a top view of a wall with openings for fastening a fan according to FIGS. 1 to 3,
Fig. 5
3 shows a perspective illustration of a mini-fan attached to a wall according to FIG. 4, FIG.
Fig. 6
a top view of the arrangement of FIG. 5, seen from the mounting side,
Fig. 7
a top view analogous to FIG. 6, but viewed from the side opposite the mounting side,
Fig. 8
a section, taken along the line VIII-VIII of Fig. 7,
Fig. 9
a side view of the fan, seen in the viewing direction IX of Fig. 7,
Fig. 10
a side view of the fan, seen in the direction of an arrow X of Fig. 7,
Fig. 11
a side view of the fan, seen in the viewing direction XI of Fig. 7,
Fig. 12
a stage of a method according to the invention, in which a fastening element provided on the fan is elastically deformed by a rod 10,
Fig. 13
a stage of a method according to the invention, wherein the elastically deformed fastener is inserted into a mounting recess, and
Fig. 14
a stage of the method in which the fastener is positively secured to a support wall.

In den nachfolgenden Figuren werden gleiche oder gleich wirkende Teile mit denselben Bezugszeichen bezeichnet und gewöhnlich nur einmal beschrieben.In the following figures are the same or equivalent parts with the same reference numerals and usually described only once.

Fig. 1 zeigt einen Minilüfter 3 mit einem Lüfterrad 31. Der Lüfter 3 hat ein Außengehäuse 2, innerhalb dessen sich das Lüfterrad 31 dreht, und am Umfang des Außengehäuses 2 ist in der dargestellten Weise eine Auflage 1 aus einem elastomeren Werkstoff angebracht. Das Außengehäuse 2 ist von dieser elastischen Auflage 1 an seinem Umfang durch die Vorsprünge 8 umschlossen. und die elastisch verformbare Auflage 1 ist, z. B. durch eine leichte Vorspannung, form- und kraftschlüssig am Außengehäuse 2 gehalten. Fig. 1 shows a mini-fan 3 with a fan 31, the fan 3 has an outer casing 2, within which the fan 31 rotates, and on the circumference of the outer casing 2, a support 1 is mounted from an elastomeric material in the manner shown. The outer housing 2 is enclosed by this elastic support 1 at its periphery by the projections 8. and the elastically deformable support 1 is, for. B. by a slight bias, positively and non-positively held on the outer housing 2.

Zu seiner Befestigung ist der Minilüfter 3 mit Befestigungselementen 7 versehen, die an der elastischen Auflage 1 angeformt sind. Die pilzförmigen Befestigungselemente 7, welche einen Kopfabschnitte 72 haben, sind im Wesentlichen identisch ausgebildet, und sie haben zueinander etwa den gleichen Abstand. Die Kopfabschnitte 72 weisen in dieselbe Richtung. Fig. 1 zeigt als Beispiel die Verwendung von drei Befestigungselementen 7.To its attachment is the miniature fan 3 with fasteners. 7 provided, which are integrally formed on the elastic support 1. The mushroom-shaped Fasteners 7, which have a head portions 72 are in Essentially identical, and they have to each other about the same distance. The head portions 72 point in the same direction. Fig. 1 shows the use of three fasteners 7 as an example.

An der Peripherie 11 der elastischen Auflage 1 ist auch eine Zugentlastung 6 für ein (nicht dargestelltes) Verbindungskabel des Minilüfters 3 angeordnet. Die Zugentlastung 6 hat eine Öse 61, durch welche das Verbindungskabel hindurchgeführt wird.At the periphery 11 of the elastic pad 1 is also a strain relief 6 for a connection cable (not shown) of the mini-fan 3 is arranged. The Strain relief 6 has an eyelet 61 through which the connection cable is passed.

Fig. 2 zeigt einen Schnitt durch den Minilüfter 3 der Fig. 1. Über die Außenkanten 9 des Außengehäuses 2 ragen Vorsprünge 8 der elastischen Auflage 1. Zum Einbau des Minilüfters 3 in die elastische Auflage 1 wird diese gedehnt, wodurch der Minilüfter 3 eingelegt werden kann. Danach wird die Auflage 1 entspannt, wodurch sie sich mit Vorspannung um den Minilüfter 3 legt. Alternativ kann sie auch auf das Außengehäuse aufvulkanisiert werden. Fig. 2 shows a section through the mini-fan 3 of Fig. 1. About the outer edges 9 of the outer case 2 protrude projections 8 of the elastic pad 1. For the installation of the mini-fan 3 into the resilient pad 1, this is stretched, whereby the mini-fan 3 inserted are can. Thereafter, the support 1 is relaxed, whereby it lays around the mini-fan 3 with bias. Alternatively, it can also be vulcanized onto the outer housing.

Das elastische Material der Auflage 1 und der Befestigungselemente 7 bewirkt eine Dämpfung von Geräuschen und Vibrationen, wie sie beim Lauf des Minilüfters 3 entstehen.The elastic material of the support 1 and the fastening elements 7 causes an attenuation of noise and vibration, as in the course of the Mini fans 3 arise.

Als Material für die Auflage 1 und die Befestigungselemente 7 können Gummi, ein Elastomer, Schaumstoff oder sonstige Stoffe mit ähnlichen elastischen Eigenschaften verwendet werden.As a material for the support 1 and the fasteners 7 rubber, an elastomer, foam or other substances with similar elastic Properties are used.

Die Halterung des Minilüfters 3 an einer Trägerwand 4 (Fig. 4) erfolgt mit den Befestigungselementen 7. Diese haben gemäß Fig. 12 bis 14 einen Schaftabschnitt 71 und einen Kopfabschnitt 72, zwischen denen sich bevorzugt eine Einschnürung 73 befindet. Die Kopfabschnitte 72 wirken jeweils mit einer Ausnehmung 41 in der Trägerwand 4 dergestalt zusammen, dass die elastische Auflage 1 zusammen mit dem Gehäuseteil 2 an der Trägerwand 4 gehalten wird, insbesondere formschlüssig und mit elastischer Anpressung. Dies wird nachfolgend anhand der Fig. 4 bis 11 erläutert.The holder of the mini-fan 3 on a support wall 4 (Fig. 4) takes place with the Fasteners 7. These have shown in FIG. 12 to 14 a Shank portion 71 and a head portion 72, between which preferred a constriction 73 is located. The head portions 72 each act with one Recess 41 in the support wall 4 such that the elastic Support 1 is held together with the housing part 2 on the support wall 4, in particular form-fitting and with elastic contact pressure. this will Explained below with reference to FIGS. 4 to 11.

Fig. 3 zeigt eine Seitenansicht der elastischen Auflage 1, gesehen in Richtung der Pfeile III - III der Fig. 1 FIG. 3 shows a side view of the elastic support 1, seen in the direction of the arrows III-III of FIG. 1

Fig. 4 zeigt eine Wand 4 mit einer Ausnehmung 43, an welcher ein Minilüfter 3 mittels seiner Befestigungselemente 7 in sehr einfacher Weise montiert werden kann. Dazu sind Befestigungsausnehmungen 41 an dieser Wand 4 vorgesehen, und diese wirken bei der Montage mit den Befestigungselementen 7 zusammen. Die Befestigungsausnehmungen 41 haben einen Durchmesser D2, welcher kleiner ist als der Durchmesser D1 der pilzförmigen Kopfabschnitte 32, der in Fig. 2 dargestellt ist. Fig. 4 shows a wall 4 with a recess 43 to which a mini-fan 3 can be mounted by means of its fastening elements 7 in a very simple manner. For this purpose, fastening recesses 41 are provided on this wall 4, and these act together with the fastening elements 7 during assembly. The mounting recesses 41 have a diameter D2 which is smaller than the diameter D1 of the mushroom-shaped head portions 32, which is shown in Fig. 2.

Im Anschluss an die Ausnehmung 43 ist, wie in Fig. 4 dargestellt, noch eine Aussparung 42 vorgesehen, welche zur Durchführung des Anschlusskabels und zur Aufnahme der Zugentlastung 6, 61 dient.Following the recess 43, as shown in Fig. 4, one more Recess 42 is provided, which for the implementation of the connection cable and for receiving the strain relief 6, 61 is used.

Fig. 5 zeigt eine Draufsicht von schräg oben auf die der Montageseite "a" gegenüberliegenden Seite "b" und auf einen dort montierten Minilüfter 3. Die pilzförmigen Kopfabschnitte 72 ragen über die Befestigungsausnehmungen 41 hinaus und verdecken diese. Fig. 5 shows a plan view obliquely from above on the mounting side "a" opposite side "b" and on a mounted there mini fan 3. The mushroom-shaped head portions 72 project beyond the mounting recesses 41 and cover them.

Fig. 6 zeigt eine Draufsicht auf die Montageseite "a" der Trägerwand 4, also auf die Seite, von der aus der Lüfter 3 befestigt wird. In dieser Ansicht sind Kanäle 74 sichtbar, welche zentral in den Befestigungselementen 7 angeordnet sind und zur Montage der Befestigungselemente 7 an der Wand 4 dienen, wie das nachfolgend anhand der Fig. 12 bis 14 beschrieben wird. Fig. 6 shows a plan view of the mounting side "a" of the support wall 4, ie on the side from which the fan 3 is attached. In this view, channels 74 are visible, which are arranged centrally in the fastening elements 7 and serve for mounting the fastening elements 7 on the wall 4, as will be described below with reference to FIGS. 12 to 14.

Fig. 7 zeigt eine Draufsicht auf die Seite "b" der Trägerwand 4, welche der Montageseite "a" gegenüber liegt. Fig. 7 shows a plan view of the side "b" of the support wall 4, which is opposite to the mounting side "a".

Fig. 8 zeigt einen Schnitt analog Fig. 2 durch die Wand 4 und einen an ihr befestigten Minilüfter 3. Die einzigen Teile, die mit der Wand 4 in Berührung stehen, sind die Teile der elastomeren Auflage 1. Dies verhindert bzw. reduziert die Übertragung von Schwingungen und Geräuschen vom Minilüfter 3 auf die Wand 4, und man erhält eine gute Abdichtung. Fig. 8 shows a section analogous to Fig. 2 through the wall 4 and attached to her mini fan 3. The only parts that are in contact with the wall 4, are the parts of the elastomeric pad 1. This prevents or reduces the transmission of vibration and noise from the mini-fan 3 on the wall 4, and you get a good seal.

Fig. 9 zeigt eine Seitenansicht des montierten Lüfters 3 und seiner elastomeren Auflage 1. Fig. 10 zeigt eine analoge Darstellung, aber gesehen aus einer anderen Richtung, und Fig. 11 zeigt ebenfalls eine Seitenansicht des montierten Lüfters 3, aber aus noch einer anderen Richtung.Fig. 9 shows a side view of the mounted fan 3 and its elastomeric support 1. Fig. 10 shows an analogous view, but seen from another direction, and Fig. 11 also shows a side view of the mounted fan 3, but from yet another direction ,

Ein bevorzugtes Verfahren zur Montage der Befestigungselemente 7 an der Wand 4 ist in den Fig. 12 bis 14 näher dargestellt.A preferred method for mounting the fastening elements 7 on the wall 4 is shown in more detail in FIGS. 12 to 14 .

Beim dargestellten Beispiel hat der Schaft 71 eines Befestigungselements 7 eine verjüngte Stelle 73, die auch als Einschnürung bezeichnet werden kann und deren Länge an die Dicke der Wand 4 angepasst ist. Mittels dieser Einschnürung 73 erfolgt ein sicherer Formschluss in allen Richtungen.In the example shown, the shaft 71 has a fastening element 7 a tapered point 73, which can also be referred to as a constriction and whose length is adapted to the thickness of the wall 4. By means of this constriction 73, a positive fit occurs in all directions.

Der Kanal 74 ist zu der dem pilzförmigen Kopfabschnitt 72 gegenüberliegenden Seite 75 hin offen und endet zur anderen Seite 76 hin im Inneren des Kopfabschnitts 72. In den Kanal 74, der parallel zur Längsachse des Befestigungselements 7 verläuft, wird bei der Montage von unten ein stabförmiges Werkzeug 10 eingeführt, vgl. Fig. 12.The channel 74 is opposite to the mushroom-shaped head portion 72 Page 75 and ends at the other side 76 in the interior of the Head portion 72. In the channel 74, which is parallel to the longitudinal axis of Fastening element 7 runs, is a during assembly from below rod-shaped tool 10 introduced, see. Fig. 12.

Das Werkzeug 10 wird dabei soweit in den Kanal 74 eingeführt, dass sich das Befestigungselement 7 in der dargestellten Weise elastisch verformt. Dadurch nimmt sein Außendurchmesser entsprechend ab, und das Teil schnürt sich besonders im Bereich der Verjüngung 73 ein.The tool 10 is inserted so far into the channel 74, that the Fixing element 7 elastically deformed in the manner shown. Thereby decreases its outer diameter accordingly, and the part laces especially in the area of rejuvenation 73.

Der ursprüngliche Durchmesser D1 des pilzförmigen Kopfabschnitts 72 (Fig. 2), der größer war als der Durchmesser D2 der Ausnehmung 41 (Fig. 4; Fig. 12) reduziert sich dabei auf einen Durchmesser D3 (Fig. 13), der kleiner ist als der Durchmesser D2 der Befestigungsausnehmung 41.The original diameter D1 of the mushroom-shaped head portion 72 (FIG. 2), which was larger than the diameter D2 of the recess 41 (Figure 4, Figure 12) reduces to a diameter D3 (FIG. 13) which is smaller than that Diameter D2 of the mounting recess 41st

Dadurch kann das Befestigungselement 7 in der dargestellten Weise in Richtung eines Pfeiles 11 in die Befestigungsausnehmung 41 eingeführt werden, wie in Fig. 12 dargestellt, wonach das stabförmige Werkzeug 10 in Richtung eines Pfeiles 12 aus dem Befestigungselement 7 heraus gezogen wird. Hierdurch nimmt das Befestigungselement 7 wieder seine ursprüngliche Form an, wie in Fig. 14 dargestellt, und der Kopfabschnitt 72 des Befestigungselements 7 wird formschlüssig in der Befestigungsausnehmung 41 verankert.As a result, the fastening element 7 in the manner shown in the direction an arrow 11 are inserted into the mounting recess 41, as in Fig. 12, after which the rod-shaped tool 10 in the direction of a Arrow 12 is pulled out of the fastener 7 out. hereby takes the fastener 7 back to its original shape, as in Fig. 14, and the head portion 72 of the fastener 7 is anchored positively in the mounting recess 41.

Allgemein wird auch von einem Querschnitt D1, D2 bzw. D3 gesprochen. Der pilzförmige Kopfabschnitt 72 wird auch als querschnittserweiterter Bereich 72 bezeichnet, da seine Querschnittsfläche größer ist als diejenige der verjüngten Stelle 73 und des Schafts 71.General is also spoken of a cross section D1, D2 and D3. Of the mushroom-shaped head portion 72 also becomes a cross-sectional enlarged portion 72 designated, since its cross-sectional area is greater than that of the tapered Position 73 and shaft 71.

Naturgemäß sind im Rahmen der Erfindung vielfache Abwandlungen und Modifikationen möglich.Naturally, in the context of the invention multiple modifications and Modifications possible.

Claims (13)

Lüfter mit mindestens einem Befestigungselement (7) zur Befestigung dieses Lüfters (3) an einer Befestigungsausnehmung (41), welches Befestigungselement (7) elastisch ausgebildet ist und einen Schaftabschnitt (71) und einen Kopfabschnitt (72) aufweist, die bei der Befestigung mit der Befestigungsausnehmung (41) dergestalt zusammen wirken, dass das Befestigungselement (7) zusammen mit dem Lüfter (3) an der Befestigungsausnehmung gehalten wird, wobei im Befestigungselement (7) ein Kanal (74) vorgesehen ist, der im Bereich des Kopfabschnitt (72) im Wesentlichen geschlossen ist und zu der dem Kopfabschnitt (72) gegenüberliegenden Seite (75) hin offen ist.Fan with at least one fastening element (7) for attachment this fan (3) on a mounting recess (41), which fastening element (7) is elastic and a Shaft portion (71) and a head portion (72), which in the Attachment with the mounting recess (41) in such a way cooperate, that the fastening element (7) together with the fan (3) is held on the mounting recess, wherein in the fastening element (7) a channel (74) is provided, which in the Area of the head portion (72) is substantially closed and towards the side (75) opposite the head section (72) is. Lüfter nach Anspruch 1, welcher mit einer elastomeren Auflage (1) versehen ist, welche den Lüfter (3) überragt und / oder wenigstens teilweise umschließt.Fan according to claim 1, which is provided with an elastomeric support (1) is provided, which projects beyond the fan (3) and / or at least partially encloses. Lüfter nach Anspruch 1 oder 2, welcher als Miniaturlüfter in der Bauweise als Axial-, Diagonal- oder Radiallüfter ausgebildet ist.Fan according to claim 1 or 2, which as a miniature fan in the Construction is designed as axial, diagonal or radial fan. Lüfter nach einem der vorhergehenden Ansprüche, bei welchem der Durchmesser (D2) der Befestigungsausnehmung (41) kleiner ist als der Durchmesser (D1) des Kopfabschnitts (72) des Befestigungselements (7).Fan according to one of the preceding claims, in which the Diameter (D2) of the mounting recess (41) is smaller than that Diameter (D1) of the head portion (72) of the fastener (7). Lüfter nach einem der vorhergehenden Ansprüche, bei welchem mehrere Befestigungselemente (7) am Lüfter (3) vorgesehen sind, die im Wesentlichen in gleicher Richtung verlaufen.Fan according to one of the preceding claims, in which several Fastening elements (7) on the fan (3) are provided in the Essentially in the same direction. Lüfter nach einem der vorhergehenden Ansprüche, bei welchem im Befestigungselement (7) ein Kanal (74) vorgesehen ist, der zu der dem Kopfabschnitt (72) des Befestigungselements (7) gegenüber liegenden Seite (75) hin offen ist und zur anderen Seite (76) hin im Bereich des Kopfabschnitts (72) endet.Fan according to one of the preceding claims, wherein in Fastening element (7), a channel (74) is provided, which is to the Head portion (72) of the fastener (7) opposite Side (75) is open and on the other side (76) out in the area of Head section (72) ends. Lüfter nach einem der vorhergehenden Ansprüche, bei welchem eine elastomeren Auflage (1) zur Anbringung im Randbereich einer Öffnung (43) einer Wand (4) vorgesehen ist, so dass der Lüfter (3) im Betrieb einen Luftstrom durch diese Öffnung (43) erzeugt.Fan according to one of the preceding claims, in which a elastomeric pad (1) for attachment in the edge region of an opening (43) is provided a wall (4), so that the fan (3) in operation generates an air flow through this opening (43). Lüfter nach einem der vorhergehenden Ansprüche, bei welchem eine elastomeren Auflage (1) vorgesehen ist, und mit dieser eine Zugentlastung (6) für eine elektrische Anschlussleitung des Lüfters (3) verbunden ist.Fan according to one of the preceding claims, in which a elastomeric pad (1) is provided, and with this one Strain relief (6) for an electrical connection cable of the fan (3) connected is. Verfahren zur Montage eines Lüfters (3) an einer Wand (4), welche eine Befestigungsausnehmung (41) aufweist, welcher Lüfter (3) zur Befestigung an der Wand (4) mindestens ein Befestigungselement (7) mit einem querschnittserweiterten Bereich (72) und mit einem Kanal (74) aufweist, welcher Kanal (74) an seinem bei der Montage zur Wand (4) hin weisenden Seite ein im Wesentlichen geschlossenes Ende aufweist, und am gegenüberliegenden Ende zur Einführung eines Werkzeugs ausgebildet ist, welches Verfahren folgende Schritte aufweist: A) Das Werkzeug (10) wird in den Kanal (74) eingeführt, um durch Elongation des Befestigungselements (7) den Querschnitt des querschnittserweiterten Bereichs (72) zu verringern; B) der querschnittserweiterte Bereich (72) wird anschließend in die Befestigungsausnehmung (41) der Wand (4) eingeführt; C) das Werkzeug (10) wird entfernt, so dass der Querschnitt des querschnittserweiterten Bereichs (72) durch die elastische Verkürzung des Befestigungselements (7) wieder zunimmt und eine Verbindung mit der Befestigungsausnehmung (41) hergestellt wird. Method for mounting a fan (3) on a wall (4) which has a fastening recess (41), which fan (3) for attachment to the wall (4) has at least one fastening element (7) with a cross - sectional widened area (72) and with a channel (74), which channel (74) has a substantially closed end at its side facing the wall (4) when mounted, and is formed at the opposite end for insertion of a tool, the method comprising the steps of: A) the tool (10) is introduced into the channel (74) to reduce the cross-sectional area of the cross-sectional widened portion (72) by elongating the fastener (7); B) the cross-sectional widened portion (72) is then inserted into the mounting recess (41) of the wall (4); C) the tool (10) is removed so that the cross-section of the cross-sectional widened portion (72) by the elastic shortening of the fastener (7) increases again and a connection with the mounting recess (41) is made. Verfahren nach Anspruch 9, welches zusätzlich folgenden Schritt aufweist: A1 ) Das Werkzeug (10) wird im Schritt A) bis zu dem im Wesentlichen geschlossenen Ende des Kanals (74) in das Befestigungselement (7) eingeführt. Method according to claim 9, which additionally comprises the following step: A1) The tool (10) is inserted in step A) to the substantially closed end of the channel (74) in the fastener (7). Verfahren nach Anspruch 10, welches zusätzlich folgenden Schritt aufweist: A2) Das Werkzeug (10) wird im Schritt A1) zumindest so weit in den Kanals (74) eingeführt, dass das Befestigungselement (7) verlängert wird und durch Elongation eine Verringerung des Querschnitts des querschnittserweiterten Bereichs (72) erfolgt. Method according to claim 10, which additionally comprises the following step: A2) The tool (10) is inserted into the channel (74) at least so far in step A1) that the fastening element (7) is lengthened and a reduction of the cross-sectional widened area (72) is achieved by elongation. Verfahren nach einem der Ansprüche 9 bis 11, welches zusätzlich folgenden Schritt aufweist: A3) Das Werkzeug (10) wird zumindest soweit eingeführt, bis der querschnittserweiterte Bereich (72) infolge der durch die Elongation verursachten Verringerung des Querschnitts durch die Befestigungsausnehmung (41) hindurch passt. Method according to one of claims 9 to 11, which additionally comprises the following step: A3) The tool (10) is introduced at least until the cross-sectional widened portion (72) fits through the attachment recess (41) due to the reduction in cross-section caused by the elongation. Verfahren nach einem der Ansprüche 9 bis 12, bei welchem das elastische Befestigungselement (7) an einem elastomeren Bauteil (1) angeordnet ist, und das Verfahren zusätzlich folgenden Schritt aufweist: A0) Das elastomere Bauteil (1) wird vor der Montage des Lüfters (3) an diesem befestigt. Method according to one of claims 9 to 12, wherein the elastic fastening element (7) is arranged on an elastomeric component (1), and the method additionally comprises the following step: A0) The elastomeric component (1) is attached to this before mounting the fan (3).
EP04020507A 2003-10-21 2004-08-30 Fan with fastening element and method to its assembly Expired - Lifetime EP1526287B1 (en)

Applications Claiming Priority (2)

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DE10349643 2003-10-21
DE10349643 2003-10-21

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EP (1) EP1526287B1 (en)
AT (1) ATE313014T1 (en)
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US7589966B2 (en) * 2007-11-29 2009-09-15 Sun Microsystems, Inc. Low-cost, self-aligning, blind mating, tool-less fan module
US8182319B2 (en) * 2008-12-10 2012-05-22 Oracle America Inc. Computer chassis fan modules providing vibration isolation and pinch release
CN101861077B (en) * 2009-04-09 2014-01-22 鸿富锦精密工业(深圳)有限公司 Fan fixing device

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US6320291B1 (en) * 1999-08-18 2001-11-20 Delta Electronics, Inc. Construction of motor
DE10109621A1 (en) * 2001-02-28 2002-09-19 Delta Electronics Inc Serial ventilator fan e.g. for computer system, has outer frame enclosing independent carriers for successive fan wheels

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US7118334B2 (en) 2006-10-10
US20050084369A1 (en) 2005-04-21
DE102004050259A1 (en) 2005-05-25
ATE313014T1 (en) 2005-12-15
DE502004000182D1 (en) 2006-01-19
EP1526287B1 (en) 2005-12-14

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