EP1712800A1 - Fan wheel - Google Patents

Fan wheel Download PDF

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Publication number
EP1712800A1
EP1712800A1 EP06007889A EP06007889A EP1712800A1 EP 1712800 A1 EP1712800 A1 EP 1712800A1 EP 06007889 A EP06007889 A EP 06007889A EP 06007889 A EP06007889 A EP 06007889A EP 1712800 A1 EP1712800 A1 EP 1712800A1
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EP
European Patent Office
Prior art keywords
ring
fan wheel
wheel according
hub
profiling
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Granted
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EP06007889A
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German (de)
French (fr)
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EP1712800B1 (en
Inventor
Ulrich Vidal
Martin Hertreiter
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Ebm Papst Landshut GmbH
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Ebm Papst Landshut GmbH
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Publication of EP1712800A1 publication Critical patent/EP1712800A1/en
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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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/326—Rotors specially for elastic fluids for axial flow pumps for axial flow fans comprising a rotating shroud
    • 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
    • F04D29/662—Balancing of rotors

Definitions

  • the invention relates to a fan with a hub and with a plurality of radially outwardly extending from the hub wings and with a coaxial with the hub and radially disposed between the hub and the outer diameter of the impeller ring.
  • Generic fan wheels are often used for cooling and dissipation of the resulting heat loss in electric motors and their electronic components.
  • a generic fan is, for example, from the EP 0 761 979 A1 known.
  • the fan has a coaxial with the hub and radially disposed between the hub and the outer diameter of the impeller, ring on. This contributes to the stabilization of the fan wheel and the stiffening of the circumferentially spaced wings.
  • the known fan wheel has, in addition to the ring on a second ring which extends along the outer diameter of the fan wheel. The document does not explain how balancing weights can be attached to the fan wheel. Balancing the fan wheel, however, is desirable to extend the life and reduce running noise.
  • the DE 1 960 505 shows a device for balancing the impellers of air blowers. From the document it is known to provide circumferentially displaceable balance weights on the wings of the air blower.
  • brackets are provided with a peripheral ring provided on the outer diameter, in which for balancing purposes formed as brackets balancing weights are attached to the smooth peripheral ring.
  • the disadvantage here is that the brackets can be moved in an acceleration of the fan in your position.
  • the invention is based on the object to form a fan so that it is stable and on the other hand with good results ausuchtbar.
  • the invention is based on the idea to provide means for the defined attachment of balancing weights in different positions on a stabilizing or stiffening ring, which is radially spaced both from the outer diameter of the fan wheel and from the hub.
  • a stabilizing or stiffening ring which is radially spaced both from the outer diameter of the fan wheel and from the hub.
  • Another advantage of the invention is that the negative effects of weight tolerances of the balance weights less significant on the balancing result than if the balancing weights were attached to the outer diameter of the fan wheel.
  • a particularly expedient embodiment is provided by the fact that the defined attachment positions are formed by a profiling of the ring. If the fan is made of plastic as an injection molded part, the profiling can be formed directly in the manufacture of the fan wheel.
  • the profiling of the ring is designed as sawtooth profiling.
  • the angles of all flanks to the ring should be the same size.
  • a balancing weight designed as a clamp can be clamped between the saw teeth. Due to the sloping flanks of the profiling a displacement of the clip in the circumferential direction is not possible.
  • Another possibility for fastening is to form the balance weights complementary to the profile in order to achieve an improved positive connection between profiling and balancing weights.
  • the profiling is provided on the outside of the ring. Due to the large circumference on the outside of the ring, a plurality of defined mounting positions can be provided on the ring. Of course, it is also conceivable, additionally or alternatively, to provide a profiling on the side of the ring facing the hub and / or on its side surfaces.
  • the mounting positions are formed as mounting holes distributed over the circumference of the ring. With appropriate design of the balancing weights they can be inserted into the holes and secured therein. Thus, a subsequent displacement of the balance weights is avoided.
  • the balance weights can also be accommodated in receiving pockets distributed over the circumference of the ring.
  • a good delivery rate is achieved when the wings extend continuously from the hub to the outer diameter of the fan wheel.
  • the wings are divided into two groups of wings, namely a first group of wings, which extends radially between the hub and the ring, and a second group, which extends radially between the Ring and the outer diameter of the fan wheel extends.
  • the wings of different groups can be arranged offset from one another in the circumferential direction.
  • the wings are mounted directly on the shaft of an electric motor, so if the hub is formed by the shaft. In this way, the fan can be particularly easily formed integrally with the shaft, whereby the provision of a separate hub is avoided.
  • the balancing weight can be fastened detachably, that is, for example, designed as a bendable clamp.
  • the balancing weight is complementary in shape to a peripheral portion of the profiling.
  • this second ring is ideally arranged on the outer diameter of the fan wheel.
  • a fan 1 is shown made of plastic.
  • the fan 1 can be used for example for cooling of electric motors and their electronic components.
  • the fan wheel 1 is arranged with an in the center of a hub 2, axially enjoyingrekkenden Mounting hole 3 is placed on the shaft of a motor and secured against rotation relative to the shaft.
  • the fan 1 has five evenly distributed over the circumference, extending from the hub 2 radially outwardly extending wings 4. All wings 4 are designed identically, curved in the circumferential direction and employed at an angle to the central axis 5 of the fan wheel 1.
  • closed ring 7 is provided for stabilization and stiffening of the wings 4 a integrally formed with the wings 4, closed ring 7 is provided.
  • the flat, circular ring 7 extends in the circumferential direction and is arranged coaxially to the hub 2 and radially between the hub 2 and the outer diameter 6 of the fan wheel 1.
  • the ring 7 can widen immediately adjacent to the wings to about the width of the wings 4, whereby the stability and the resistance to breakage of the fan wheel 1 is increased.
  • the diameter of the ring 7 corresponds in the illustrated embodiment about half the fan diameter, but can also be selected smaller or larger depending on the wheel diameter.
  • the ring 7 On its outer side 8, the ring 7 is provided with a sawtooth-like profiling 9 with circumferentially alternating teeth 10 and tooth spaces 11.
  • the tooth gaps 11 define attachment positions 12 for attachment of balance weights, not shown.
  • balancing weights for example Metällklammem can be used, which are inserted into one or more tooth gaps 11 laterally and abut the inner side 13 and on the outer side 8 of the ring 7 and clamp this.
  • the profiling 9 is designed such that the teeth 10 form triangular triangles. It is particularly advantageous if the balance weights for forming a positive connection with the ring 7, at least in partial sections, are complementary in shape to the profiling 9, ie have at least one tooth 10 or one tooth gap 11 in the present case.
  • the profiling 9 is provided exclusively on itself between the wings 4 extending peripheral portions 14 of the ring 7.
  • the wings 4 of the fan wheel 1 extend continuously from the hub 2 to the outer diameter 6 of the fan wheel 1. Along the outer periphery of the fan wheel 1 extends second, closed ring 15. This additionally increases the stability and rigidity of the fan wheel 1 and closes this radially outward.
  • a section of the fan wheel 1 is shown enlarged.
  • the depth of the tooth gaps 11 corresponds to about a quarter of the thickness of the ring. 7

Abstract

The fan impeller (1) has a hub (2) with several vanes (4) extending radially out from it, and a ring (7) installed co-axially with the hub and radially between the hub and outside diameter of the impeller. The ring has several defined fastening positions distributed over its circumference for the attaching of at least one balance weight. The fastening positions are formed by a profiling (9) of the ring which is provided exclusively between the spaced apart vanes.

Description

Die Erfindung betrifft ein Lüfterrad mit einer Nabe sowie mit mehreren, sich von der Nabe radial nach außen erstreckenden Flügeln und mit einem koaxial zur Nabe sowie radial zwischen der Nabe und dem Außendurchmesser des Lüfterrades angeordneten Ring.The invention relates to a fan with a hub and with a plurality of radially outwardly extending from the hub wings and with a coaxial with the hub and radially disposed between the hub and the outer diameter of the impeller ring.

Gattungsgemäße Lüfterräder werden häufig zur Kühlung und Abführung der entstehenden Verlustwärme bei Elektromotoren sowie deren Elektronikbauteilen eingesetzt.Generic fan wheels are often used for cooling and dissipation of the resulting heat loss in electric motors and their electronic components.

Ein gattungsgemäßes Lüfterrad ist beispielsweise aus der EP 0 761 979 A1 bekannt. Das Lüfterrad weist einen koaxial zur Nabe sowie radial zwischen der Nabe und dem Außendurchmesser des Lüfterrades angeordneten, Ring auf. Dieser trägt zur Stabilisierung des Lüfterrades und zur Versteifung der in Umfangsrichtung beabstandeten Flügel bei. Das bekannte Lüfterrad weist zusätzlich zu dem Ring einen zweiten Ring auf, der entlang des Aussendurchmessers des Lüfterrades verläuft. Die Druckschrift erläutert nicht, wie Auswuchtgewichte an dem Lüfterrad angebracht werden können. Ein Auswuchten des Lüfterrades ist jedoch zur Verlängerung der Lebensdauer sowie zur Reduzierung von Laufgeräuschen wünschenswert.A generic fan is, for example, from the EP 0 761 979 A1 known. The fan has a coaxial with the hub and radially disposed between the hub and the outer diameter of the impeller, ring on. This contributes to the stabilization of the fan wheel and the stiffening of the circumferentially spaced wings. The known fan wheel has, in addition to the ring on a second ring which extends along the outer diameter of the fan wheel. The document does not explain how balancing weights can be attached to the fan wheel. Balancing the fan wheel, however, is desirable to extend the life and reduce running noise.

Aus der DE 199 57 030 A1 ist ein rotierender Körper mit einem an dessen Außenumfang vorgesehenen Ring bekannt. Die Druckschrift lehrt, als Klammern ausgebildete Auswuchtgewichte an über den Umfang des Rings verteilten gekrümmten Befestigungsteilen zu befestigen.From the DE 199 57 030 A1 is a rotating body with a provided on the outer circumference ring known. The document teaches mounting balance weights formed as staples on curved attachment hardware distributed around the circumference of the ring.

Die DE 1 960 505 zeigt eine Einrichtung zum Auswuchten der Flügelräder von Luftgebläsen. Aus der Druckschrift ist es bekannt, in Umfangsrichtung verschiebbare Ausgleichgewichte an den Flügeln des Luftgebläses vorzusehen.The DE 1 960 505 shows a device for balancing the impellers of air blowers. From the document it is known to provide circumferentially displaceable balance weights on the wings of the air blower.

Weiterhin sind allgemein Lüfterräder mit einem am Außendurchmesser vorgesehenen Umfangsring bekannt, bei denen zu Auswuchtzwecken als Klammern ausgebildete Auswuchtgewichte an dem glatten Umfangsring angebracht werden. Nachteilig hierbei ist, dass die Klammern bei einer Beschleunigung des Lüfterrades in Ihrer Lage verschoben werden können.Furthermore, generally fan wheels are provided with a peripheral ring provided on the outer diameter, in which for balancing purposes formed as brackets balancing weights are attached to the smooth peripheral ring. The disadvantage here is that the brackets can be moved in an acceleration of the fan in your position.

Der Erfindung liegt die Aufgabe zu Grunde, ein Lüfterrad derart auszubilden, dass es zum einen stabil und zum anderen mit gutem Ergebnis auswuchtbar ist.The invention is based on the object to form a fan so that it is stable and on the other hand with good results ausuchtbar.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is solved by the features of claim 1. Advantageous embodiments and further developments of the invention are specified in the subclaims.

Der Erfindung liegt der Gedanke zu Grunde, Mittel zur definierten Befestigung von Ausgleichgewichten in unterschiedlichen Positionen an einem Stabilisierungs- bzw. Versteifungsring vorzusehen, der radial sowohl vom Außendurchmesser des Lüfterrades als auch von dessen Nabe beabstandet ist. Durch das Vorsehen der definierten Befestigungspositionen wird ein Verrutschen der Auswuchtgewichte in Umfangsrichtung, insbesondere bei der Beschleunigung des Lüfterrades, vermieden. Dadurch, dass die definierten Befestigungspositionen an dem Ring angebracht sind, können sie Ober den gesamten Umfang des Rings und damit des Lüfterrades verteilt werden, wodurch eine feinstufige Anbringung von Auswuchtgewichten möglich ist. Durch das Vorsehen der definierten Befestigungspositionen an dem Ring werden Stabilisierungs- sowie Auswuchtfunktion mit nur einem gemeinsamen Bauteil erreicht.The invention is based on the idea to provide means for the defined attachment of balancing weights in different positions on a stabilizing or stiffening ring, which is radially spaced both from the outer diameter of the fan wheel and from the hub. By providing the defined attachment positions slipping of the balance weights in the circumferential direction, in particular during the acceleration of the fan wheel, is avoided. The fact that the defined mounting positions are attached to the ring, they can be distributed over the entire circumference of the ring and thus the fan wheel, whereby a fine-scale attachment of balancing weights is possible. By providing the defined attachment positions on the ring stabilization and balancing function can be achieved with only one common component.

Es werden durch das Anordnen der Befestigungspositionen an dem vom Außendurchmesser beabstandeten Ring gute Auswuchtergebnisse erzielt. Die erzielbaren Ergebnisse sind sogar genauer als bei Anordnung der Auswuchtgewichte am Außenumfang. Ein weiterer Vorteil der Erfindung besteht darin, dass die negativen Auswirkungen von Gewichtstoleranzen der Auswuchtgewichte auf das Auswuchtergebnis weniger stark ins Gewicht fallen, als wenn die Auswuchtgewichte am Außendurchmesser des Lüfterrades befestigt würden.By placing the attachment positions on the ring spaced from the outer diameter, good balance results are achieved. The achievable results are even more accurate than with the arrangement of the balancing weights on the outer circumference. Another advantage of the invention is that the negative effects of weight tolerances of the balance weights less significant on the balancing result than if the balancing weights were attached to the outer diameter of the fan wheel.

Dadurch, dass die Befestigungspositionen nicht an den Flügeln vorgesehen sind und ein vom Außenumfang beabstandeter Stabilisierungsring vorgesehen ist, wird das Risiko einer Deformierung oder Beschädigung der Flügel beim Anbringen der Auswuchtgewichte erheblich reduziert.By not providing the attachment positions on the wings and providing a stabilizer ring spaced from the outer circumference, the risk of blade deformation or damage in attaching the balance weights is significantly reduced.

Eine besonders zweckmäßige Ausgestaltung wird dadurch bereitgestellt, dass die definierten Befestigungspositionen von einer Profilierung des Rings gebildet sind. Wenn das Lüfterrad als Spritzgussteil aus Kunststoff hergestellt wird, kann die Profilierung unmittelbar bei der Herstellung des Lüfterrades angeformt werden.A particularly expedient embodiment is provided by the fact that the defined attachment positions are formed by a profiling of the ring. If the fan is made of plastic as an injection molded part, the profiling can be formed directly in the manufacture of the fan wheel.

Es ist von Vorteil, wenn die Profilierung des Rings, zumindest in Umfangsabschnitten, als Sägezahnprofilierung ausgebildet ist. Dabei sollten die Winkel sämtlicher Flanken zum Ring gleich groß sein. Zwischen die Sägezähne kann beispielsweise ein als Klammer ausgebildetes Auswuchtgewicht geklemmt werden. Aufgrund der schrägen Flanken der Profilierung ist ein Verschieben der Klammer in Umfangsrichtung nicht möglich. Eine weitere Befestigungsmöglichkeit besteht darin, die Auswuchtgewichte formkomplementär zu der Profilierung auszubilden, um einen verbesserten Formschluss zwischen Profilierung und Auswuchtgewichten zu erreichen.It is advantageous if the profiling of the ring, at least in peripheral portions, is designed as sawtooth profiling. The angles of all flanks to the ring should be the same size. For example, a balancing weight designed as a clamp can be clamped between the saw teeth. Due to the sloping flanks of the profiling a displacement of the clip in the circumferential direction is not possible. Another possibility for fastening is to form the balance weights complementary to the profile in order to achieve an improved positive connection between profiling and balancing weights.

Vorteilhafterweise ist die Profilierung auf der Außenseite des Rings vorgesehen. Aufgrund des großen Umfangs an der Außenseite des Rings können eine Vielzahl von definierten Befestigungspositionen am Ring vorgesehen werden. Selbstverständlich ist es auch denkbar, zusätzlich oder alternativ eine Profilierung an der der Nabe zugewandten Seite des Rings und/oder an dessen Seitenflächen vorzusehen.Advantageously, the profiling is provided on the outside of the ring. Due to the large circumference on the outside of the ring, a plurality of defined mounting positions can be provided on the ring. Of course, it is also conceivable, additionally or alternatively, to provide a profiling on the side of the ring facing the hub and / or on its side surfaces.

Eine weitere Möglichkeit besteht darin, die Befestigungspositionen als über den Umfang des Rings verteilte Befestigungsbohrungen auszubilden. Bei entsprechender Ausbildung der Auswuchtgewichte können diese in die Bohrungen eingeführt und darin befestigt werden. Somit wird ein nachträgliches Verschieben der Auswuchtgewichte vermieden.Another possibility is to form the mounting positions as mounting holes distributed over the circumference of the ring. With appropriate design of the balancing weights they can be inserted into the holes and secured therein. Thus, a subsequent displacement of the balance weights is avoided.

Die Auswuchtgewichte können auch in über den Umfang des Rings verteilte Aufnahmetaschen aufgenommen werden.The balance weights can also be accommodated in receiving pockets distributed over the circumference of the ring.

Möglichst viele Befestigungspositionen für Auswuchtgewichte können vorgesehen werden, wenn der Ring in Umfangsrichtung geschlossen ist.As many mounting positions as possible for balance weights can be provided if the ring is closed in the circumferential direction.

Versuche haben gezeigt, dass ein besonders guter Kompromiss zwischen optimaler Versteifung und optimalen Auswuchtergebnissen erzielt wird, wenn der Durchmesser des Rings etwa dem halben Lüfterraddurchmesser entspricht.Experiments have shown that a particularly good compromise between optimal stiffening and optimum balance results is achieved when the diameter of the ring corresponds to approximately half the fan diameter.

Eine gute Förderleistung wird erreicht, wenn sich die Flügel durchgehend von der Nabe bis zum Außendurchmesser des Lüfterrades erstrecken. Je nach Anwendungsfall ist es jedoch auch denkbar, dass die Flügel in zwei Gruppen von Flügeln unterteilt sind, nämlich in eine erste Gruppe von Flügeln, die sich radial zwischen der Nabe und dem Ring erstreckt, und in eine zweite Gruppe, die sich radial zwischen dem Ring und dem Außendurchmesser des Lüfterrades erstreckt. Dabei können die Flügel unterschiedlicher Gruppen in Umfangsrichtung versetzt zueinander angeordnet sein.A good delivery rate is achieved when the wings extend continuously from the hub to the outer diameter of the fan wheel. However, depending on the application, it is also conceivable that the wings are divided into two groups of wings, namely a first group of wings, which extends radially between the hub and the ring, and a second group, which extends radially between the Ring and the outer diameter of the fan wheel extends. The wings of different groups can be arranged offset from one another in the circumferential direction.

Bei einer Vielzahl von Anwendungsfällen ist es von Vorteil, wenn die Flügel direkt an der Welle eines Elektromotors angebracht sind, wenn also die Nabe von der Welle gebildet wird. Hierdurch kann das Lüfterrad besonders einfach einstückig mit der Welle ausgebildet werden, wodurch das Vorsehen einer separaten Nabe vermieden wird.In a variety of applications, it is advantageous if the wings are mounted directly on the shaft of an electric motor, so if the hub is formed by the shaft. In this way, the fan can be particularly easily formed integrally with the shaft, whereby the provision of a separate hub is avoided.

Um herauszufinden, an welcher Befestigungsposition mit einem Auswuchtgewicht die beste Auswuchtwirkung erzielt wird, ist vorteilhafterweise vorgesehen, dass das Ausgleichgewicht lösbar befestigbar, also beispielsweise als aufbiegbare Klammer ausgebildet ist.In order to find out at which fastening position with a balancing weight the best balancing effect is achieved, it is advantageously provided that the balancing weight can be fastened detachably, that is, for example, designed as a bendable clamp.

Um einen guten Fonnschluss zwischen Profilierung und Auswuchtgewicht zu bewirken, ist vorgesehen, dass das Auswuchtgewicht formkomplementär zu einem Umfangsabschnitt der Profilierung ausgebildet ist.In order to effect a good Fonnschluss between profiling and balancing weight, it is provided that the balancing weight is complementary in shape to a peripheral portion of the profiling.

Aus Stabilisierungs- und Steifigkeitsgründen kann es von Vorteil sein, zusätzlich zu dem Ring einen weiteren, koaxial zu dem Ring angeordneten Ring vorzusehen. Dieser zweite Ring wird im Idealfall am Außendurchmesser des Lüfterrades angeordnet.For reasons of stabilization and stiffness, it may be advantageous to provide, in addition to the ring, another ring arranged coaxially with the ring. This second ring is ideally arranged on the outer diameter of the fan wheel.

Im Folgenden wird die Erfindung unter Bezugnahme auf das in den Figuren dargestellte Ausführungsbeispiel näher erläutert. In den Figuren zeigen:

Fig. 1
eine perspektivische Darstellung eines erfindungsgemäßes Lüfterrades, und
Fig. 2
ein vergrößertes Detail der Fig. 1.
In the following the invention will be explained in more detail with reference to the embodiment shown in the figures. In the figures show:
Fig. 1
a perspective view of an inventive fan wheel, and
Fig. 2
an enlarged detail of Fig. 1st

In Fig. 1 ist ein Lüfterrad 1 aus Kunststoff dargestellt. Das Lüfterrad 1 kann beispielsweise zur Kühlung von Elektromotoren und deren elektronischen Bauteilen eingesetzt werden. Dazu wird das Lüfterrad 1 mit einer im Zentrum einer Nabe 2 angeordneten, sich axial erstrekkenden Montageöffnung 3 auf die Welle eines Motors gesteckt und gegen Verdrehen relativ zur Welle gesichert.In Fig. 1, a fan 1 is shown made of plastic. The fan 1 can be used for example for cooling of electric motors and their electronic components. For this purpose, the fan wheel 1 is arranged with an in the center of a hub 2, axially erstrekkenden Mounting hole 3 is placed on the shaft of a motor and secured against rotation relative to the shaft.

Das Lüfterrad 1 weist fünf gleichmäßig über den Umfang verteilte, sich von der Nabe 2 radial nach außen erstreckende Flügel 4 auf. Sämtliche Flügel 4 sind identisch gestaltet, in Umfangsrichtung gekrümmt und in einem Winkel zur Mittelachse 5 des Lüfterrades 1 angestellt.The fan 1 has five evenly distributed over the circumference, extending from the hub 2 radially outwardly extending wings 4. All wings 4 are designed identically, curved in the circumferential direction and employed at an angle to the central axis 5 of the fan wheel 1.

Zur Stabilisierung und Versteifung der Flügel 4 ist ein einstückig mit den Flügeln 4 ausgebildeter, geschlossener Ring 7 vorgesehen. Der flache, kreisförmige Ring 7 erstreckt sich in Umfangsrichtung und ist koaxial zur Nabe 2 sowie radial zwischen der Nabe 2 und dem Außendurchmesser 6 des Lüfterrades 1 angeordnet. Der Ring 7 kann sich unmittelbar benachbart der Flügel auf etwa die Breite der Flügel 4 verbreitern, wodurch die Stabilität und die Bruchsicherheit des Lüfterrades 1 erhöht wird. Der Durchmesser des Rings 7 entspricht im dargestellten Ausführungsbeispiel etwa dem halben Lüfterraddurchmesser, kann aber in Abhängigkeit des Raddurchmessers auch kleiner oder größer gewählt werden.For stabilization and stiffening of the wings 4 a integrally formed with the wings 4, closed ring 7 is provided. The flat, circular ring 7 extends in the circumferential direction and is arranged coaxially to the hub 2 and radially between the hub 2 and the outer diameter 6 of the fan wheel 1. The ring 7 can widen immediately adjacent to the wings to about the width of the wings 4, whereby the stability and the resistance to breakage of the fan wheel 1 is increased. The diameter of the ring 7 corresponds in the illustrated embodiment about half the fan diameter, but can also be selected smaller or larger depending on the wheel diameter.

An seiner Außenseite 8 ist der Ring 7 mit einer sägezahnartigen Profilierung 9 mit sich in Umfangsrichtung abwechselnden Zähnen 10 und Zahnlücken 11 versehen. Die Zahnlücken 11 definieren Befestigungspositionen 12 zur Anbringung von nicht dargestellten Auswuchtgewichten. Als Auswuchtgewichte können beispielsweise Metällklammem verwendet werden, die in seitlich eine oder mehrere Zahnlücken 11 eingeschoben werden und an der Innenseite 13 sowie an der Außenseite 8 des Rings 7 anliegen und diesen dadurch klemmen. Durch das Vorsehen der Befestigungspositionen wird ein Verschieben der Auswuchtgewichte in Umfangsrichtung vermieden.On its outer side 8, the ring 7 is provided with a sawtooth-like profiling 9 with circumferentially alternating teeth 10 and tooth spaces 11. The tooth gaps 11 define attachment positions 12 for attachment of balance weights, not shown. As balancing weights, for example Metällklammem can be used, which are inserted into one or more tooth gaps 11 laterally and abut the inner side 13 and on the outer side 8 of the ring 7 and clamp this. By providing the fastening positions, a displacement of the balance weights in the circumferential direction is avoided.

Die Profilierung 9 ist derart ausgebildet, dass die Zähne 10 glelchschenklige Dreiecke bilden. Besonders vorteilhaft ist es, wenn die Auswuchtgewichte zur Herstellung eines Formschlusses mit dem Ring 7, zumindest in Teilabschnitten, formkomplementär zu der Profilierung 9 ausgebildet sind, also im vorliegenden Fall mindestens einen Zahn 10 oder eine Zahnlücke 11 aufweisen.The profiling 9 is designed such that the teeth 10 form triangular triangles. It is particularly advantageous if the balance weights for forming a positive connection with the ring 7, at least in partial sections, are complementary in shape to the profiling 9, ie have at least one tooth 10 or one tooth gap 11 in the present case.

Die Profilierung 9 ist ausschließlich an sich zwischen den Flügeln 4 erstreckenden Umfangsabschnitten 14 des Rings 7 vorgesehen.The profiling 9 is provided exclusively on itself between the wings 4 extending peripheral portions 14 of the ring 7.

Die Flügel 4 des Lüfterrades 1 erstrecken sich durchgehend von der Nabe 2 bis zum Außendurchmesser 6 des Lüfterrades 1. Entlang des Außenumfangs des Lüfterrades 1 verläuft ein zweiter, geschlossener Ring 15. Dieser erhöht zusätzlich die Stabilität und die Steifigkeit des Lüfterrades 1 und schließt dieses radial nach außen hin ab.The wings 4 of the fan wheel 1 extend continuously from the hub 2 to the outer diameter 6 of the fan wheel 1. Along the outer periphery of the fan wheel 1 extends second, closed ring 15. This additionally increases the stability and rigidity of the fan wheel 1 and closes this radially outward.

In Fig. 2 ist ein Ausschnitt des Lüfterrades 1 vergrößert dargestellt. Zu erkennen ist die sägezahnartige Profilierung 9 am Ring 7 mit den sich in Umfangsrichtung abwechselnden Zähnen 10 und Zahnlücken 11. Die Tiefe der Zahnlücken 11 entspricht etwa einem Viertel der Dicke des Rings 7.In Fig. 2, a section of the fan wheel 1 is shown enlarged. To recognize the sawtooth profiling 9 on the ring 7 with the circumferentially alternating teeth 10 and tooth gaps 11. The depth of the tooth gaps 11 corresponds to about a quarter of the thickness of the ring. 7

Claims (16)

Lüfterrad (1) mit einer Nabe (2) sowie mit mehreren, sich von der Nabe (2) radial nach außen erstreckenden, Flügeln (4), und mit einem, koaxial zur Nabe (2) sowie radial zwischen der Nabe (2) und dem Außendurchmesser (6) des Lüfterrades (1) angeordneten Ring (7),
dadurch gekennzeichnet, dass der Ring (7) mehrere über dessen Umfang verteilte, definierte Befestigungspositionen (12) zur Anbringung mindestens eines Auswuchtgewichtes aufweist.A fan wheel (1) having a hub (2) and a plurality of vanes (4) extending radially outwardly from the hub (2) and having one coaxial with the hub (2) and radially between the hub (2) and the outer diameter (6) of the fan wheel (1) arranged ring (7),
characterized in that the ring (7) has a plurality of distributed over its circumference, defined fastening positions (12) for attachment of at least one balancing weight. Lüfterrad nach Anspruch 1,
dadurch gekennzeichnet, dass die Befestigungspositionen (12) durch eine Profilierung (9) des Rings (7) gebildet sind.Fan wheel according to claim 1,
characterized in that the fastening positions (12) by a profiling (9) of the ring (7) are formed. Lüfterrad nach Anspruch 2, dadurch gekennzeichnet, dass die Profilierung (9) ausschließlich zwischen den in Umfangsrichtung beabstandeten Flügeln (4) vorgesehen ist.Fan wheel according to claim 2, characterized in that the profiling (9) is provided exclusively between the circumferentially spaced wings (4). Lüfterrad nach einem der Ansprüche 2 oder 3,
dadurch gekennzeichnet, dass die Profilierung (9) des Rings, zumindest in Umfangsabschnitten, als Sägezahnprofilierung ausgebildet ist.Fan wheel according to one of claims 2 or 3,
characterized in that the profiling (9) of the ring, at least in peripheral portions, is designed as sawtooth profiling. Lüfterrad nach einem der Ansprüche 2 bis 4,
dadurch gekennzeichnet, dass die Profilierung (9) auf der Außenseite (8) des Rings vorgesehen ist.Fan wheel according to one of claims 2 to 4,
characterized in that the profiling (9) on the outer side (8) of the ring is provided. Lüfterrad nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die Befestigungspositionen (12) durch Ober den Umfang des Rings (7) verteilte Befestigungsbohrungen gebildet sind.Fan wheel according to one of the preceding claims,
characterized in that the fastening positions (12) are formed by mounting holes distributed over the circumference of the ring (7). Lüfterrad nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die Befestigungspositionen (12) durch über den Umfang des Rings (7) verteilte Aufnahmetaschen gebildet sind.Fan wheel according to one of the preceding claims,
characterized in that the attachment positions (12) are formed by receiving pockets distributed over the circumference of the ring (7). Lüfterrad nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass der Ring (7) in Umfangsrichtung geschlossen ist.Fan wheel according to one of the preceding claims,
characterized in that the ring (7) is closed in the circumferential direction. Lüfterrad nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass der Durchmesser des Rings (7) dem halben Lüfterraddurchmesser entspricht.Fan wheel according to one of the preceding claims,
characterized in that the diameter of the ring (7) corresponds to half the fan diameter. Lüfterrad nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass sich die Flügel (4) durchgehend von der Nabe (2) bis zum Außendurchmesser (6) des Lüfterrades (1) erstrecken.Fan wheel according to one of the preceding claims,
characterized in that the wings (4) extending continuously from the hub (2) to the outer diameter (6) of the fan wheel (1). Lüfterrad nach einem der vorhergehenden Ansprüche,
dadurch gekennzelchnet, dass die Nabe (2) als Welle, insbesondere eines Motors, ausgebildet ist.Fan wheel according to one of the preceding claims,
gekennzelchnet that the hub (2) as a shaft, in particular a motor is formed. Lüfterrad nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass an dem Ring (7) mindestens ein Auswuchtgewicht, insbesondere lösbar, befestigt ist.Fan wheel according to one of the preceding claims,
characterized in that on the ring (7) at least one balancing weight, in particular releasably secured. Lüfterrad nach Anspruch 12,
dadurch gekennzeichnet, dass das Auswuchtgewicht als Klammer ausgebildet ist.Fan wheel according to claim 12,
characterized in that the balancing weight is formed as a clamp. Lüfterrad nach einem der Ansprüche 12 oder 13,
dadurch gekennzeichnet, dass das Auswuchtgewicht formkomplementär zu einem Umfangsabschnitt der Profilierung (9) ausgebildet ist.Fan wheel according to one of claims 12 or 13,
characterized in that the balancing weight is complementary in shape to a peripheral portion of the profiling (9). Lüfterrad nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass zusätzlich zu dem Ring (7) ein weiterer, koaxial zu dem Ring (7) angeordneter, zweiter Ring (15) vorgesehen ist.Fan wheel according to one of the preceding claims,
characterized in that in addition to the ring (7), a further, coaxial with the ring (7) arranged second ring (15) is provided. Lüfterrad nach Anspruch 15, dadurch gekennzeichnet, dass der zweite, insbesondere geschlossene, Ring (15) am Außendurchmesser des Lüfterrades angeordnet ist.Fan wheel according to claim 15, characterized in that the second, in particular closed, ring (15) is arranged on the outer diameter of the fan wheel.
EP06007889A 2005-04-14 2006-04-13 Fan wheel Active EP1712800B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200520006043 DE202005006043U1 (en) 2005-04-14 2005-04-14 fan

Publications (2)

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EP1712800A1 true EP1712800A1 (en) 2006-10-18
EP1712800B1 EP1712800B1 (en) 2010-10-27

Family

ID=34877884

Family Applications (1)

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EP06007889A Active EP1712800B1 (en) 2005-04-14 2006-04-13 Fan wheel

Country Status (6)

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US (1) US20060233646A1 (en)
EP (1) EP1712800B1 (en)
AT (1) ATE486223T1 (en)
DE (2) DE202005006043U1 (en)
ES (1) ES2354656T3 (en)
PT (1) PT1712800E (en)

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US9657946B2 (en) 2012-09-15 2017-05-23 Honeywell International Inc. Burner control system
US9683674B2 (en) 2013-10-29 2017-06-20 Honeywell Technologies Sarl Regulating device
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator
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US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
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US9657946B2 (en) 2012-09-15 2017-05-23 Honeywell International Inc. Burner control system
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US11421875B2 (en) 2012-09-15 2022-08-23 Honeywell International Inc. Burner control system
US9683674B2 (en) 2013-10-29 2017-06-20 Honeywell Technologies Sarl Regulating device
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator
US11884128B2 (en) 2017-12-18 2024-01-30 Carrier Corporation Fan stator construction to minimize axial depth

Also Published As

Publication number Publication date
US20060233646A1 (en) 2006-10-19
DE502006008160D1 (en) 2010-12-09
EP1712800B1 (en) 2010-10-27
PT1712800E (en) 2011-01-14
ES2354656T3 (en) 2011-03-16
ATE486223T1 (en) 2010-11-15
DE202005006043U1 (en) 2005-08-18

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