EP1094224B1 - Radial fan - Google Patents

Radial fan Download PDF

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Publication number
EP1094224B1
EP1094224B1 EP00120352A EP00120352A EP1094224B1 EP 1094224 B1 EP1094224 B1 EP 1094224B1 EP 00120352 A EP00120352 A EP 00120352A EP 00120352 A EP00120352 A EP 00120352A EP 1094224 B1 EP1094224 B1 EP 1094224B1
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EP
European Patent Office
Prior art keywords
housing
radial
fan according
radial fan
connection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00120352A
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German (de)
French (fr)
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EP1094224A3 (en
EP1094224A2 (en
Inventor
Gunter Dipl.-Ing. Streng
Rainer Dipl.-Ing. Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ebm Werke GmbH and Co KG
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Ebm Werke GmbH and Co KG
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Publication of EP1094224A2 publication Critical patent/EP1094224A2/en
Publication of EP1094224A3 publication Critical patent/EP1094224A3/en
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Publication of EP1094224B1 publication Critical patent/EP1094224B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F04D29/424—Double entry casings
    • 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
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation

Definitions

  • the present invention relates to a radial fan, consisting from a fan housing and disposed therein an electric motor and one about an axis of rotation rotating fan having fan assembly, wherein the blower housing - based on the axis of rotation - at least an axial air inlet opening and a radial or tangential Beerausblasö Maschinenschen.
  • the fan assembly within the fan housing to assemble while connecting cables of the electric motor to be led outwards so that they can communicate with external ones Supply lines can be connected.
  • EP 0 408 221 B1 or the associated DE 690 12 244 T2 describes a radial or centrifugal fan, at the fan assembly from one end into a correspondingly large mounting opening of the housing used axially and then on a special separate mounting part is attached.
  • the running as a DC motor Motor has a printed circuit board from which obviously the leads axially through the mounting part must be led to the outside. From this known Design results in a complicated and correspondingly time-consuming installation of the blower, wherein also a threading of leads by certain Openings of blower and / or mounting parts required is.
  • a similar fan housing is disclosed by FR-A-2 697 294 and GB 2 140 085 A known, but where the division level something the center is offset.
  • the present invention is based on the object Radial fan to create, which - especially at a "flying" bracket of the fan assembly on only one axial side - by simple construction and assembly distinguished.
  • the embodiment according to the invention makes it possible to the fan assembly in a particularly simple manner in the use open or separate housing parts and fasten.
  • the motor connection cables need it only in the one-sided, axially inward open line duct to be inserted without a Threading through openings would be necessary.
  • the terminal housing according to the Dividing plane of the blower housing divided into two parts is, the duct leads directly into the interior of the associated connection housing part. Therefore, advantageously the electric motor with its leads and preferably also prefabricated with a connector part be. It then only needs the connector part from inside into a corresponding mounting hole the terminal housing part to be used, wherein the Fixation is done in particular by locking means. It can then immediately the connection of an external supply cable via a corresponding complementary connector part respectively.
  • Each housing part is advantageously integral with the associated terminal housing part designed so that an economical production As plastic moldings by injection molding is possible.
  • latching means for connecting the housing parts are expediently Provided latching means, whereby the closing or Joining the parts is quick and easy
  • An inventive radial fan 1 consists of a fan housing 2 and a fan assembly housed therein 4 (see also Fig. 2 and 3).
  • the fan housing 2 is preferably as a spiral housing with a spiral running Formed circumferential wall and two axial end walls.
  • the blower housing 2 in the illustrated Execution as double-sided sucking blower in the end walls two axial air inlet openings 6, 8th as well as in the area of the circumferential wall a radial or tangential Air outlet opening 10 on.
  • the fan assembly 4 consists of a Electric motor 12 and one of this about an axis of rotation 14 rotation-driven fan 16.
  • the blower housing 2 is detachably interconnected in two Housing parts 2a and 2b divided, in one perpendicular to the axis of rotation 14 (radial), in particular approximately centered and thereby the exhaust opening 10 approximately split symmetrically into two opening areas 10a and 10b Division level. It follows that the one, separately shown in Fig. 4 housing part 2a in its end wall which has an air inlet opening 6 and the other housing part 2b shown separately in FIG whose end wall, the other air inlet opening. 8
  • the connection lines 24 are conveniently to a strand, bundles or cables summarized.
  • the duct 22 is shown in FIG.
  • This connection housing 26 is preferably according to the dividing plane of the blower housing 2 divided into two terminal housing parts 26 a and 26 b.
  • the terminal housing 26 is connected to the blower housing. 2 formed "in one piece", which due to the housing division means that each housing part 2a and 2b with the associated Terminal housing part 26a and 26b as one piece Molded part is formed in particular of plastic.
  • Fig. 1 corresponds to the terminal housing 26 in the axial direction seen essentially the dimension of the blower housing 2; As shown, the terminal housing 26 is only slightly narrower than the fan housing 2 is formed. In this case, the terminal housing 26 in one of the Blow-out 10 adjacent area of the radial, preferably helically curved housing peripheral wall 28 arranged according to the pitch of the blower housing 2 also in two axially adjacent wall sections is divided.
  • the housing part 2a With respect to the housing part 2a is the wall opening 30 in the direction of the housing dividing plane formed open-edge.
  • the motor leads 24 without any Thread through holes or the like only in the axial direction in the duct 22 and through the wall opening 30 in the terminal housing part 26a insertable or insertable.
  • This the conduit 22 forming Support element 18a has for this purpose a substantially U-shaped, axially open towards the inside of the housing on.
  • a closure element 32 which for example via a tongue and groove connection for closing the duct 22 with the Support element 18a can be connected. This measure is in particular for avoiding or reducing airflow noise advantageous.
  • the support elements 18, 18a as shown arcuate, and the air inlet openings 6, 8 in the region of its outer opening edge nozzle-like are formed.
  • the connecting lines 24 are already prefabricated and with an electrical connector element 34, in particular connector element, connected.
  • electrical connector element 34 in particular connector element, connected.
  • These are several in a common contact housing arranged electrical contact elements, in particular Plug contact elements, such as plug or Jacks.
  • the terminal housing 26 and the terminal housing part 26a in a particular axial direction facing wall a mounting opening 36 for holding Insertion of the connector element 34 on.
  • the connector element 34 is inserted from inside into the mounting hole 36 and held releasably via latching means in such a way, that according to FIG. 1 from the outside of the housing not a shown, complementary, with an external connection cable connected mating connector element connected, in particular can be plugged.
  • the one, with the terminal housing part 26 a integrally connected Housing part 2a is connected to the other, with the terminal housing part 26b integral housing part 2b expediently connected via locking means 38, wherein it is in particular snap-in, releasable form-locking connections which, in the area of the division level, corresponds to the respective Housing walls are formed.
  • the support member 20 advantageously a plurality of axial openings 40, through which the Surface of the motor flange through the conveyed air is cooled. This is especially beneficial if it is is a motor with electronic commutation and the electronic components arranged in this area are. The resulting heat can then be effective be dissipated.
  • the support member 20 from a centric, preferably circular central portion 42, a central portion 42 concentric enclosing with radial spacing, in one piece connected to the spoke-like support elements 18, 18a Ring part 44 and several of the middle part 42 with the Ring part 44 connecting, spoke-like struts 46.
  • Ring member 44 of the support member 20 advantageously has an axially inwardly projecting toward the fan assembly 4 ring land 48, which has an outer edge of the motor flange of Electric motor 12 includes.
  • the ring land 48 has in the starting area the duct 22 a corresponding interruption or opening (see in particular Fig. 4), to also here to insert the leads 24 can.
  • the terminal housing 26 may - in addition to the connector element 34 - record further components, not shown, For example, at least one capacitor - and / or Fuse element.
  • spoke-like support elements 18 preferably one have axially inwardly open, U-shaped cross-section, but for reasons of stability inside stiffening webs molded in particular in the manner of a triangular truss are (see stability at low weight).
  • the radial blower 1 is very inexpensive and economically producible and mountable.
  • the finished preassembled fan assembly 4 is opened or disconnected Condition of the housing parts with the one housing part 2a, d. H. connected to the carrier part 20.
  • the Connecting lines 24 inserted into the duct 22 and through the wall opening 30 with the connector element 34 in FIG the terminal housing 26 introduced.
  • the connector element 34 is inserted into the mounting hole 36 and locked.
  • the leads 24 by fixing fixed what is manually possible by going through the air inlet opening 6 through the support member 18 a is engaged behind. It then only need the housing parts 2a, 2b are joined together and locked.
  • the invention is not limited to the illustrated and described Embodiments limited, but also includes all the same in the context of the invention embodiments, For example, a two-sided axial attachment of Fan assembly 4. Furthermore, the invention is also so far not yet on the defined in claim 1 feature combination limited, but can also be through any different combination of certain characteristics of all in total be defined individual features defined. This means, that in principle practically every single feature of the claim 1 omitted or by at least one to another Substituted point of application disclosed individual feature can be. In this sense, the claim 1 is only as a to understand first formulation attempt for an invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Massaging Devices (AREA)
  • Toys (AREA)

Abstract

The radial fan has a housing containing an electric motor (12) and a fan assembly (4) with a fan wheel rotatable about a rotation axis. The housing has axial air inlet (6) and radial or tangential outlet (10) openings, two separable parts (2a,2b) and a fan assembly bearer (20) held by spoke-shaped bearer elements (18,18a), at least one (18a) forming a cable duct for electrical motor connection leads with a transition to a connector housing.

Description

Die vorliegende Erfindung betrifft ein Radialgebläse, bestehend aus einem Gebläsegehäuse und einer darin angeordneten, einen Elektromotor und ein um eine Rotationsachse rotierendes Lüfterrad aufweisenden Lüfterbaugruppe, wobei das Gebläsegehäuse - bezogen auf die Rotationsachse - mindestens eine axiale Lufteintrittsöffnung und eine radiale bzw. tangentiale Luftausblasöffnung aufweist.The present invention relates to a radial fan, consisting from a fan housing and disposed therein an electric motor and one about an axis of rotation rotating fan having fan assembly, wherein the blower housing - based on the axis of rotation - at least an axial air inlet opening and a radial or tangential Luftausblasöffnung.

Bei solchen Radialgebläsen sind unterschiedliche Möglichkeiten bekannt, die Lüfterbaugruppe innerhalb des Gebläsegehäuses zu montieren und dabei Anschlußleitungen des Elektromotors so nach außen zu führen, daß sie mit externen Versorgungsleitungen verbunden werden können.With such radial fans are different possibilities known, the fan assembly within the fan housing to assemble while connecting cables of the electric motor to be led outwards so that they can communicate with external ones Supply lines can be connected.

Die EP 0 408 221 B1 bzw. die zugehörige DE 690 12 244 T2 beschreibt einen Radial- bzw. Zentrifugalventilator, bei dem die Lüfterbaugruppe von einer Stirnseite her in eine entsprechend große Montageöffnung des Gehäuses axial eingesetzt und dann über ein spezielles gesondertes Montageteil befestigt wird. Der als Gleichstrommotor ausgeführte Motor weist eine gedruckte Schaltplatte auf, von der aus offensichtlich die Anschlußleitungen axial durch das Montageteil nach außen geführt werden müssen. Aus dieser bekannten Ausgestaltung resultiert eine komplizierte und entsprechend zeitaufwendige Montage des Gebläses, wobei auch ein Durchfädeln von Anschlußleitungen durch bestimmte Öffnungen von Gebläse- und/oder Montageteilen erforderlich ist.EP 0 408 221 B1 or the associated DE 690 12 244 T2 describes a radial or centrifugal fan, at the fan assembly from one end into a correspondingly large mounting opening of the housing used axially and then on a special separate mounting part is attached. The running as a DC motor Motor has a printed circuit board from which obviously the leads axially through the mounting part must be led to the outside. From this known Design results in a complicated and correspondingly time-consuming installation of the blower, wherein also a threading of leads by certain Openings of blower and / or mounting parts required is.

Ähnliches gilt auch für das aus der US-PS 2 830 752 bekannte Gebläse, bei dem die Lüfterbaugruppe über eine nichtrotierende, beidseitig vom Motor vorstehende Tragachse in sternartigen Trägerteilen des Gehäuses gehalten ist. Hierbei müssen die Anschlußleitungen ausgehend vom Motor sogar durch einen sehr engen axialen Kanal der Tragachse nach außen geführt werden. Um die Lüfterbaugruppe in das Gehäuse einsetzen zu können, ist wenigstens ein lösbarer Gehäusedeckel vorgesehen.The same applies to that known from US Pat. No. 2,830,752 Blower in which the fan assembly has a non-rotating, on both sides of the motor projecting axle in star-like support parts of the housing is held. in this connection the leads must be starting from the engine even by a very narrow axial channel of the support shaft be led outside. To the fan assembly in the housing to be able to use at least one detachable housing cover intended.

Die DE 41 40 129 A1 beschreibt ausschließlich ein Gebläsegehäuse bzw. ein Spiralgehäuse für einen Zentrifugallüfter, während über eine Lüfterbaugruppe und deren Anordnung und Halterung nichts offenbart ist. Dieses bekannte Gehäuse ist in einer zur Rotationsachse senkrechten (radialen), etwa mittigen Teilungsebene in zwei Gehäuseteile geteilt, die über Rastelemente lösbar verbunden sind.DE 41 40 129 A1 exclusively describes a fan housing or a spiral housing for a centrifugal fan, while about a fan assembly and their arrangement and Bracket nothing is revealed. This known housing is in a direction perpendicular to the axis of rotation (radial), such as divided central division plane into two housing parts, the are detachably connected via latching elements.

Ein ganz ähnliches Gebläsegehäuse ist durch die FR-A- 2 697 294 und GB 2 140 085 A bekannt, wobei allerdings die Teilungsebene etwas aus der Mitte versetzt ist.A similar fan housing is disclosed by FR-A-2 697 294 and GB 2 140 085 A known, but where the division level something the center is offset.

Schließlich wurde in der älteren Patentanmeldung DE 198 41 762 der Anmelderin ein Radialgebläse vorgeschlagen, dessen Gebläsegehäuse in zwei lösbar verbundene, die Lufteintrittsöffnung(en) und auch die Ausblasöffnung teilende Schalenteile unterteilt ist. Die Halterung der Lüfterbaugruppe erfolgt über zwei gesonderte Trägerteile, die im zusammengesetzten Montagezustand zwischen den Schalenteilen im Bereich der Lufteintrittsöffnungen gehalten sind.Finally, in the earlier patent application DE 198 41 762 the applicant proposed a radial fan whose Blower housing in two detachably connected, the air inlet opening (s) and also the exhaust opening dividing shell parts is divided. The bracket of the fan assembly takes place via two separate carrier parts, which in the composite Mounting state between the shell parts in Area of the air inlet openings are held.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Radialgebläse zu schaffen, welches sich - insbesondere bei einer "fliegenden" Halterung der Lüfterbaugruppe auf nur einer Axialseite - durch einfache Konstruktion und Montage auszeichnet.The present invention is based on the object Radial fan to create, which - especially at a "flying" bracket of the fan assembly on only one axial side - by simple construction and assembly distinguished.

Erfindungsgemäß wird dies durch ein Radialgebläse mit den Merkmalen des Anspruchs 1 erreicht. Vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen enthalten.This is achieved by a radial fan with the Characteristics of claim 1 achieved. Advantageous developments of the invention are contained in the dependent claims.

Durch die erfindungsgemäße Ausgestaltung ist es möglich, die Lüfterbaugruppe auf besonders einfache Weise in die geöffneten bzw. voneinander getrennten Gehäuseteile einzusetzen und zu befestigen. Dabei brauchen die Motor-Anschlußleitungen nur in den einseitig, axial nach innen offenen Leitungskanal eingelegt zu werden, ohne daß ein Durchfädeln durch Öffnungen notwendig wäre. Da vorteilhafterweise auch das Anschlußgehäuse entsprechend der Teilungsebene des Gebläsegehäuses in zwei Teile geteilt ist, mündet der Leitungskanal direkt in den Innenraum des zugehörigen Anschlußgehäuseteils. Deshalb kann vorteilhafterweise der Elektromotor mit seinen Anschlußleitungen und vorzugsweise auch mit einem Steckverbinderteil vorkonfektioniert sein. Es braucht dann lediglich das Steckverbinderteil von innen her in eine entsprechende Montageöffnung des Anschlußgehäuseteils eingesetzt zu werden, wobei die Fixierung insbesondere durch Rastmittel erfolgt. Es kann dann unmittelbar der Anschluß eines äußeren Versorgungskabels über ein entsprechendes komplementäres Steckverbinderteil erfolgen. Jedes Gehäuseteil ist vorteilhafterweise mit dem zugehörigen Anschlußgehäuseteil einstückig ausgebildet, so daß auch eine wirtschaftliche Herstellung als Kunststoff-Formteile im Spritzgußverfahren möglich ist. Zur Verbindung der Gehäuseteile sind zweckmäßigerweise Rastmittel vorgesehen, wodurch auch das Verschließen bzw. Zusammenfügen der Teile schnell und einfach ist.The embodiment according to the invention makes it possible to the fan assembly in a particularly simple manner in the use open or separate housing parts and fasten. The motor connection cables need it only in the one-sided, axially inward open line duct to be inserted without a Threading through openings would be necessary. Since advantageously also the terminal housing according to the Dividing plane of the blower housing divided into two parts is, the duct leads directly into the interior of the associated connection housing part. Therefore, advantageously the electric motor with its leads and preferably also prefabricated with a connector part be. It then only needs the connector part from inside into a corresponding mounting hole the terminal housing part to be used, wherein the Fixation is done in particular by locking means. It can then immediately the connection of an external supply cable via a corresponding complementary connector part respectively. Each housing part is advantageously integral with the associated terminal housing part designed so that an economical production As plastic moldings by injection molding is possible. For connecting the housing parts are expediently Provided latching means, whereby the closing or Joining the parts is quick and easy.

Anhand eines in der Zeichnung veranschaulichten, bevorzugten Ausführungsbeispiels soll die Erfindung genauer erläutert werden. Es zeigen:

Fig. 1
eine Perspektivansicht eines erfindungsgemäßen Radialgebläses in seinem fertig montierten Zustand,
Fig. 2
eine etwas verkleinerte perspektivische Explosionsdarstellung der wesentlichen Bestandteile des erfindungsgemäßen Radialgebläses,
Fig. 3
eine Ansicht analog zu Fig. 2, jedoch aus einer anderen Blickrichtung,
Fig. 4
eine Perspektivansicht auf die Innenseite des einen Gehäuseteils und
Fig. 5
eine Perspektivansicht auf die Außenseite des anderen Gehäuseteils.
Reference to an illustrated in the drawing, preferred embodiment of the invention will be explained in more detail. Show it:
Fig. 1
a perspective view of a radial fan according to the invention in its fully assembled state,
Fig. 2
a somewhat reduced perspective exploded view of the essential components of the radial fan according to the invention,
Fig. 3
a view similar to FIG. 2, but from a different perspective,
Fig. 4
a perspective view of the inside of a housing part and
Fig. 5
a perspective view of the outside of the other housing part.

Ein erfindungsgemäßes Radialgebläse 1 besteht aus einem Gebläsegehäuse 2 und einer darin untergebrachten Lüfterbaugruppe 4 (s. auch Fig. 2 und 3). Das Gebläsegehäuse 2 ist bevorzugt als Spiralgehäuse mit einer spiralförmig verlaufenden Umfangswandung und zwei axialen Stirnwandungen ausgebildet. Dabei weist das Gebläsegehäuse 2 in der dargestellten Ausführung als doppelseitig saugendes Gebläse in den Stirnwandungen zwei axiale Lufteintrittsöffnungen 6, 8 sowie im Bereich der Umfangswandung eine radiale bzw. tangentiale Luftausblasöffnung 10 auf.An inventive radial fan 1 consists of a fan housing 2 and a fan assembly housed therein 4 (see also Fig. 2 and 3). The fan housing 2 is preferably as a spiral housing with a spiral running Formed circumferential wall and two axial end walls. In this case, the blower housing 2 in the illustrated Execution as double-sided sucking blower in the end walls two axial air inlet openings 6, 8th as well as in the area of the circumferential wall a radial or tangential Air outlet opening 10 on.

Gemäß Fig. 2 und 3 besteht die Lüfterbaugruppe 4 aus einem Elektromotor 12 und einem von diesem um eine Rotationsachse 14 rotationsangetriebenen Lüfterrad 16.According to Fig. 2 and 3, the fan assembly 4 consists of a Electric motor 12 and one of this about an axis of rotation 14 rotation-driven fan 16.

Das Gebläsegehäuse 2 ist in zwei lösbar miteinander verbundene Gehäuseteile 2a und 2b unterteilt, und zwar in einer zur Rotationsachse 14 senkrechten (radialen), insbesondere etwa mittigen und dadurch die Ausblasöffnung 10 etwa symmetrisch in zwei Öffnungsbereiche 10a und 10b teilenden Teilungsebene. Daraus ergibt sich, daß das eine, gesondert in Fig. 4 dargestellte Gehäuseteil 2a in seiner Stirnwandung die eine Lufteintrittsöffnung 6 aufweist und das andere, gesondert in Fig. 5 dargestellte Gehäuseteil 2b in dessen Stirnwandung die andere Lufteintrittsöffnung 8.The blower housing 2 is detachably interconnected in two Housing parts 2a and 2b divided, in one perpendicular to the axis of rotation 14 (radial), in particular approximately centered and thereby the exhaust opening 10 approximately split symmetrically into two opening areas 10a and 10b Division level. It follows that the one, separately shown in Fig. 4 housing part 2a in its end wall which has an air inlet opening 6 and the other housing part 2b shown separately in FIG whose end wall, the other air inlet opening. 8

In der dargestellten, bevorzugten Ausführungsform ist die Lüfterbaugruppe 4 innerhalb des Gebläsegehäuses 2 "fliegend", d. h. nur auf einer Axialseite befestigt. Dazu weist das eine Gehäuseteil 2a im Bereich der Lufteintrittsöffnung 6 ein zentrisches, über speichenartige Tragelemente 18 gehaltenes, flanschartiges Trägerteil 20 auf, an dem die Lüfterbaugruppe 4 befestigt, insbesondere mit einem Motorflansch verschraubt wird. Wenigstens eines der Tragelemente - in den Zeichnungen mit 18a bezeichnet - ist als Leitungskanal 22 (siehe hierzu insbesondere Fig. 4) zur führenden und fixierenden Aufnahme von elektrischen Motor-Anschlußleitungen 24 (Fig. 2, 3) ausgebildet. Die Anschlußleitungen 24 sind zweckmäßigerweise zu einem Strang, Bündel oder Kabel zusammengefaßt. Der Leitungskanal 22 geht gemäß Fig. 4 von dem Trägerteil 20 aus, erstreckt sich durch das Tragelement 18a in radialer Richtung nach außen und geht dort in ein mit dem Gehäuseteil 2a außenseitig verbundenes Anschlußgehäuse 26 über. Dieses Anschlußgehäuse 26 ist vorzugsweise entsprechend der Teilungsebene des Gebläsegehäuses 2 in zwei Anschlußgehäuseteile 26a und 26b unterteilt. Das Anschlußgehäuse 26 ist mit dem Gebläsegehäuse 2 "einstückig" ausgebildet, was aufgrund der Gehäuseteilung bedeutet, daß jedes Gehäuseteil 2a bzw. 2b mit dem zugehörigen Anschlußgehäuseteil 26a bzw. 26b als einstückiges Formteil insbesondere aus Kunststoff ausgebildet ist. Gemäß Fig. 1 entspricht das Anschlußgehäuse 26 in axialer Richtung gesehen im Wesentlichen der Abmessung des Gebläsegehäuses 2; wie dargestellt ist das Anschlußgehäuse 26 lediglich geringfügig schmaler als das Gebläsegehäuse 2 ausgebildet. Dabei ist das Anschlußgehäuse 26 in einem an die Ausblasöffnung 10 angrenzenden Bereich der radialen, vorzugsweise spiralförmig gekrümmten Gehäuse-Umfangswandung 28 angeordnet, die entsprechend der Teilung des Gebläsegehäuses 2 ebenfalls in zwei axial aneinander angrenzende Wandungsabschnitte unterteilt ist.In the illustrated preferred embodiment, the Fan assembly 4 within the blower housing 2 "flying", d. H. attached only on one axial side. For this purpose points a housing part 2a in the region of the air inlet opening 6 a centric, about spoke-like support elements 18th held, flange-like support member 20, on which the Fan assembly 4 attached, in particular with a motor flange is screwed. At least one of the support elements - Denoted in the drawings with 18a - is as a duct 22 (see in particular Fig. 4) for leading and fixing receiving electrical motor leads 24 (FIGS. 2, 3). The connection lines 24 are conveniently to a strand, bundles or cables summarized. The duct 22 is shown in FIG. 4 from the support member 20, extends through the support member 18a in the radial direction to the outside and goes there in a housing connected to the housing part 2a on the outside connection housing 26 over. This connection housing 26 is preferably according to the dividing plane of the blower housing 2 divided into two terminal housing parts 26 a and 26 b. The terminal housing 26 is connected to the blower housing. 2 formed "in one piece", which due to the housing division means that each housing part 2a and 2b with the associated Terminal housing part 26a and 26b as one piece Molded part is formed in particular of plastic. According to Fig. 1 corresponds to the terminal housing 26 in the axial direction seen essentially the dimension of the blower housing 2; As shown, the terminal housing 26 is only slightly narrower than the fan housing 2 is formed. In this case, the terminal housing 26 in one of the Blow-out 10 adjacent area of the radial, preferably helically curved housing peripheral wall 28 arranged according to the pitch of the blower housing 2 also in two axially adjacent wall sections is divided.

Wie sich weiterhin aus Fig. 4 ergibt, endet das den Leitungskanal 22 bildende Tragelement 18a mit seinem radial äußeren Ende im Bereich einer unmittelbar in das Anschlußgehäuse 26 bzw. das Anschlußgehäuseteil 26a mündenden Wandungsöffnung 30 der Gehäusewandung 28. Bezogen auf das Gehäuseteil 2a ist die Wandungsöffnung 30 in Richtung der Gehäuse-Teilungsebene randoffen ausgebildet. Hierdurch sind vorteilhafterweise die Motor-Anschlußleitungen 24 ohne jegliches Durchfädeln durch Lochöffnungen oder dergleichen lediglich in axialer Richtung in den Leitungskanal 22 und durch die Wandungsöffnung 30 in das Anschlußgehäuseteil 26a einführbar bzw. einlegbar. Das den Leitungskanal 22 bildende Tragelement 18a weist dazu einen im Wesentlichen U-förmigen, axial zum Gehäuse-Inneren hin offenen Querschnitt auf. Zusätzlich können mit Vorteil Mittel zum Fixieren der Anschlußleitungen 24 innerhalb des Leitungskanals 22 vorgesehen sein. Dabei kann es sich um klammerartige Befestigungselemente handeln (nicht dargestellt). Außerdem können Mittel zum zumindest abschnittsweisen Verschließen der offenen Seite des Leitungskanals 22 vorgesehen sein. Als Beispiel dafür ist in Fig. 3 ein Verschlußelement 32 dargestellt, welches beispielsweise über eine Nut-/Federverbindung zum Verschließen des Leitungskanals 22 mit dem Tragelement 18a verbunden werden kann. Diese Maßnahme ist insbesondere zur Vermeidung oder Reduzierung von Luftströmungsgeräuschen vorteilhaft. In diesem Zusammenhang sei erwähnt, daß aus den gleichen Gründen (Reduzierung des Luftgeräusches) die Tragelemente 18, 18a wie dargestellt bogenförmig verlaufen können, und die Lufteintrittsöffnungen 6, 8 im Bereich ihres äußeren Öffnungsrandes düsenartig ausgeformt sind.As further shown in Fig. 4, this ends the duct 22 forming supporting element 18 a with its radial outer end in the area of a directly into the terminal housing 26 and the terminal housing part 26a opening wall opening 30 of the housing 28. With respect to the housing part 2a is the wall opening 30 in the direction of the housing dividing plane formed open-edge. Hereby are advantageously the motor leads 24 without any Thread through holes or the like only in the axial direction in the duct 22 and through the wall opening 30 in the terminal housing part 26a insertable or insertable. This the conduit 22 forming Support element 18a has for this purpose a substantially U-shaped, axially open towards the inside of the housing on. In addition, may advantageously means for fixing the Connecting lines 24 are provided within the duct 22 be. These may be clip-type fasteners act (not shown). In addition, you can Means for at least partially closing the open side of the duct 22 may be provided. When An example of this is shown in FIG. 3, a closure element 32, which for example via a tongue and groove connection for closing the duct 22 with the Support element 18a can be connected. This measure is in particular for avoiding or reducing airflow noise advantageous. In this context, let mentions that for the same reasons (reduction of Airborne noise), the support elements 18, 18a as shown arcuate, and the air inlet openings 6, 8 in the region of its outer opening edge nozzle-like are formed.

Gemäß Fig. 2 und 3 sind die Anschlußleitungen 24 bereits vorkonfektioniert und mit einem elektrischen Verbinderelement 34, insbesondere Steckverbinderelement, verbunden. Dabei handelt es sich um mehrere in einem gemeinsamen Kontaktgehäuse angeordnete elektrische Kontaktelemente, insbesondere Steckkontaktelemente, beispielsweise Stecker oder Buchsen. Dabei weist das Anschlußgehäuse 26 bzw. das Anschlußgehäuseteil 26a in einer insbesondere in axiale Richtung weisenden Wandung eine Montageöffnung 36 zum halternden Einsetzen des Verbinderelementes 34 auf. Das Verbinderelement 34 wird von innen her in die Montageöffnung 36 eingesetzt und darin lösbar über Rastmittel derart gehalten, daß gemäß Fig. 1 von der Gehäuse-Außenseite her ein nicht dargestelltes, komplementäres, mit einem externen Anschlußkabel verbundenes Gegenverbinderelement angeschlossen, insbesondere gesteckt werden kann.According to Fig. 2 and 3, the connecting lines 24 are already prefabricated and with an electrical connector element 34, in particular connector element, connected. These are several in a common contact housing arranged electrical contact elements, in particular Plug contact elements, such as plug or Jacks. In this case, the terminal housing 26 and the terminal housing part 26a in a particular axial direction facing wall a mounting opening 36 for holding Insertion of the connector element 34 on. The connector element 34 is inserted from inside into the mounting hole 36 and held releasably via latching means in such a way, that according to FIG. 1 from the outside of the housing not a shown, complementary, with an external connection cable connected mating connector element connected, in particular can be plugged.

Das eine, mit dem Anschlußgehäuseteil 26a einstückig verbundene Gehäuseteil 2a ist mit dem anderen, mit dem Anschlußgehäuseteil 26b einstückigen Gehäuseteil 2b zweckmäßigerweise über Rastmittel 38 verbunden, wobei es sich insbesondere um schnappbare, lösbare Formschlußverbindungen handelt, die im Bereich der Teilungsebene an die jeweiligen Gehäusewandungen angeformt sind.The one, with the terminal housing part 26 a integrally connected Housing part 2a is connected to the other, with the terminal housing part 26b integral housing part 2b expediently connected via locking means 38, wherein it is in particular snap-in, releasable form-locking connections which, in the area of the division level, corresponds to the respective Housing walls are formed.

Gemäß Fig. 4 weist das Trägerteil 20 vorteilhafterweise mehrere axiale Öffnungen 40 auf, durch die hindurch die Oberfläche des Motorflansches durch die geförderte Luft gekühlt wird. Dies ist vor allem dann von Vorteil, wenn es sich um einen Motor mit elektronischer Kommutierung handelt und die elektronischen Bauelemente in diesem Bereich angeordnet sind. Die dort entstehende Wärme kann dann wirkungsvoll abgeführt werden. Im dargestellten Beispiel besteht das Trägerteil 20 aus einem zentrischen, vorzugsweise kreisförmigen Mittelteil 42, einem das Mittelteil 42 konzentrisch mit radialem Abstand umschließenden, einstückig mit den speichenartigen Tragelementen 18, 18a verbundenen Ringteil 44 sowie aus mehreren das Mittelteil 42 mit dem Ringteil 44 verbindenden, speichenartigen Streben 46. Insbesondere im Bereich der Streben 46 sind Befestigungslöcher für die Schraubbefestigung des Motorflansches gebildet. Der Ringteil 44 des Trägerteils 20 weist vorteilhafterweise einen axial nach innen zur Lüfterbaugruppe 4 ragenden Ringsteg 48 auf, der einen Außenrand des Motorflansches des Elektromotors 12 umfaßt. Der Ringsteg 48 weist im Anfangsbereich des Leitungskanals 22 eine entsprechende Unterbrechung bzw. Öffnung auf (siehe insbesondere Fig. 4), um auch hier die Anschlußleitungen 24 einlegen zu können.According to Fig. 4, the support member 20 advantageously a plurality of axial openings 40, through which the Surface of the motor flange through the conveyed air is cooled. This is especially beneficial if it is is a motor with electronic commutation and the electronic components arranged in this area are. The resulting heat can then be effective be dissipated. In the example shown the support member 20 from a centric, preferably circular central portion 42, a central portion 42 concentric enclosing with radial spacing, in one piece connected to the spoke-like support elements 18, 18a Ring part 44 and several of the middle part 42 with the Ring part 44 connecting, spoke-like struts 46. In particular in the region of the struts 46 are fastening holes formed for the screw fastening of the motor flange. Of the Ring member 44 of the support member 20 advantageously has an axially inwardly projecting toward the fan assembly 4 ring land 48, which has an outer edge of the motor flange of Electric motor 12 includes. The ring land 48 has in the starting area the duct 22 a corresponding interruption or opening (see in particular Fig. 4), to also here to insert the leads 24 can.

Das Anschlußgehäuse 26 kann - zusätzlich zu dem Verbinderelement 34 - weitere, nicht dargestellte Bauteile aufnehmen, beispielsweise mindestens einen Kondensator - und/oder Sicherungselement.The terminal housing 26 may - in addition to the connector element 34 - record further components, not shown, For example, at least one capacitor - and / or Fuse element.

Unter Bezug auf Fig. 4 sei noch bemerkt, daß auch die übrigen speichenartigen Tragelemente 18 vorzugsweise einen axial nach innen offenen, U-förmigen Querschnitt aufweisen, wobei aber aus Stabilitätsgründen innen Versteifungsstege insbesondere nach Art eines Dreieck-Fachwerks eingeformt sind (siehe Stabilität bei geringem Gewicht).With reference to Fig. 4 it should be noted that the remaining spoke-like support elements 18 preferably one have axially inwardly open, U-shaped cross-section, but for reasons of stability inside stiffening webs molded in particular in the manner of a triangular truss are (see stability at low weight).

Durch die Erfindung werden wesentliche Vorteile erreicht. Das erfindungsgemäße Radialgebläse 1 ist sehr preiswert und wirtschaftlich herstellbar und montierbar. Die Gehäuseteile 2a, 2b zusammen mit den Anschlußgehäuseteilen 26a, 26b werden im Kunststoff-Spritzgießverfahren geformt. Die fertig vormontierte Lüfterbaugruppe 4 wird im geöffneten bzw. getrennten Zustand der Gehäuseteile mit dem einen Gehäuseteil 2a, d. h. mit dem Trägerteil 20 verbunden. Dabei werden die Anschlußleitungen 24 in den Leitungskanal 22 eingelegt und durch die Wandungsöffnung 30 mit dem Verbinderelement 34 in das Anschlußgehäuse 26 eingeführt. Das Verbinderelement 34 wird in die Montageöffnung 36 eingesetzt und verrastet. Gegebenenfalls werden die Anschlußleitungen 24 durch Fixiermittel fixiert, was manuell möglich ist, indem durch die Lufteintrittsöffnung 6 hindurch das Tragelement 18a hintergriffen wird. Es brauchen dann nur noch die Gehäuseteile 2a, 2b zusammengefügt und verrastet zu werden.Significant advantages are achieved by the invention. The radial blower 1 according to the invention is very inexpensive and economically producible and mountable. The housing parts 2a, 2b together with the terminal housing parts 26a, 26b molded in plastic injection molding. The finished preassembled fan assembly 4 is opened or disconnected Condition of the housing parts with the one housing part 2a, d. H. connected to the carrier part 20. Here are the Connecting lines 24 inserted into the duct 22 and through the wall opening 30 with the connector element 34 in FIG the terminal housing 26 introduced. The connector element 34 is inserted into the mounting hole 36 and locked. Optionally, the leads 24 by fixing fixed what is manually possible by going through the air inlet opening 6 through the support member 18 a is engaged behind. It then only need the housing parts 2a, 2b are joined together and locked.

Die Erfindung ist nicht auf die dargestellten und beschriebenen Ausführungsbeispiele beschränkt, sondern umfaßt auch alle im Sinne der Erfindung gleichwirkenden Ausführungen, beispielsweise auch eine beidseitige axiale Befestigung der Lüfterbaugruppe 4. Ferner ist die Erfindung bislang auch noch nicht auf die im Anspruch 1 definierte Merkmalskombination beschränkt, sondern kann auch durch jede beliebige andere Kombination von bestimmten Merkmalen aller insgesamt offenbarten Einzelmerkmalen definiert sein. Dies bedeutet, daß grundsätzlich praktisch jedes Einzelmerkmal des Anspruchs 1 weggelassen bzw. durch mindestens ein an anderer Stelle der Anmeldung offenbartes Einzelmerkmal ersetzt werden kann. Insofern ist der Anspruch 1 lediglich als ein erster Formulierungsversuch für eine Erfindung zu verstehen.The invention is not limited to the illustrated and described Embodiments limited, but also includes all the same in the context of the invention embodiments, For example, a two-sided axial attachment of Fan assembly 4. Furthermore, the invention is also so far not yet on the defined in claim 1 feature combination limited, but can also be through any different combination of certain characteristics of all in total be defined individual features defined. This means, that in principle practically every single feature of the claim 1 omitted or by at least one to another Substituted point of application disclosed individual feature can be. In this sense, the claim 1 is only as a to understand first formulation attempt for an invention.

Claims (17)

  1. Radial fan (1) comprising a fan housing (2) and arranged therein an impeller assembly (4) with an electric motor (12) and an impeller wheel (16) rotating about a rotation axis (14), where the fan housing (2) has at least one axial air inlet opening (6, 8) and one radial or tangential air outlet opening (10) and is divided into two separably connected housing parts (2a, 2b), characterised in that the fan housing in the area of the air inlet opening (6) has for the impeller assembly (4) a carrier part (20) held via spoke-like supporting elements (18, 18a), and where at least one of the supporting elements (18a) is formed as a cable duct (22) to hold electrical motor connection lines (24), and the cable duct (22) at the associated housing part (2a) transforms into a connection housing (26) connected with said housing part on the outside.
  2. Radial fan according to claim 1, characterised in that the fan housing (2) is divided into the two housing parts (2a, 2b) in a plane of osculation running vertical to the rotation axis (14), in particular approximately centrally and hence dividing the fan outlet opening (10) approximately symmetrically.
  3. Radial fan according to claim 1 or 2, characterised in that the connection housing (26) is divided corresponding to the plane of osculation of the fan housing (2) into two connection housing parts (26a, 26b).
  4. Radial fan according to any of claims 1 to 3, characterised in that the connection housing (26) viewed in the axial direction corresponds approximately to the dimension of the fan housing (2).
  5. Radial fan according to any of claims 1 to 4, characterised in that the connection housing (26) is arranged in an area, adjacent to the outlet opening (10), of a radial, in particular spirally curved housing wall (28).
  6. Radial fan according to any of claims 1 to 5, characterised in that the connection housing (26) is formed of the same material as the fan housing (2), preferably of plastic.
  7. Radial fan according to any of claims 1 to 6, characterised in that the supporting element (18a) forming the cable duct (22) terminates with its radial outer end in the area of a wall opening (30) of the housing wall (28) opening into the connection housing (26).
  8. Radial fan according to any of claims 1 to 7, characterised in that the supporting element (18a) forming the cable duct (22) has an essentially U-shaped cross-section open axially to the inside of the housing.
  9. Radial fan according to any of claims 1 to 8, characterised in that it has means for fixing the connection lines (24) inside the cable duct (22) and/or means (32) for at least sectional closure of the open side of the cable duct.
  10. Radial fan according to any of claims 1 to 9, characterised in that the connection housing (26), in a wall pointing in particular in the axial direction, has a mounting opening (36) for receiving by holding an electrical connector element (34), in particular a plug connector element, connected with the connection lines (24) leading to the electric motor (12).
  11. Radial fan according to claim 10, characterised in that the connector element (34) is held in the mounting opening (36) detachably via engagement means.
  12. Radial fan according to any of claims 1 to 11, characterised by a double-sided suction design where the fan housing (2) has two opposing axial air inlet openings (6, 8).
  13. Radial fan according to claim 12, characterised in that the impeller assembly (4) is held only on one axial side on the carrier part (20).
  14. Radial fan according to any of claims 1 to 13, characterised in that the housing parts (2a, 2b) and where applicable the connection housing parts (26a, 26b) are connected via engagement means (38).
  15. Radial fan according to any of claims 1 to 14, characterised in that the carrier part (20) has several axial openings (40) and for this in particular comprises a central, preferably circular centre part (42), a ring part (44) enclosing the centre part (42) concentrically with radial spacing and connected with the spoke-like supporting elements (18, 18a), and several spoke-like webs (46) connecting the centre part (42) with the ring part (44).
  16. Radial fan according to any of claims 1 to 15, characterised in that the carrier part (20) with a ring web (48) pointing axially inwards towards the impeller assembly (4) surrounds an outer edge of a motor flange of the electric motor (12), where the electric motor (12) or motor flange is in particular screwed to the carrier part (20).
  17. Radial fan according to any of claims 1 to 16, characterised in that in the connection housing (26) are or can be arranged additional components, for example at least one condenser and/or securing element.
EP00120352A 1999-10-19 2000-09-16 Radial fan Expired - Lifetime EP1094224B1 (en)

Applications Claiming Priority (2)

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DE19950245A DE19950245C1 (en) 1999-10-19 1999-10-19 Radial fan
DE19950245 1999-10-19

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EP1094224A3 EP1094224A3 (en) 2002-01-23
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DE (2) DE19950245C1 (en)
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DE50004635D1 (en) 2004-01-15
EP1094224A3 (en) 2002-01-23
DE19950245C1 (en) 2001-05-10
ATE255684T1 (en) 2003-12-15
PT1094224E (en) 2004-04-30
EP1094224A2 (en) 2001-04-25
ES2209745T3 (en) 2004-07-01

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