DE499586C - Device for dampening the noise of the air exiting vacuum cleaners - Google Patents

Device for dampening the noise of the air exiting vacuum cleaners

Info

Publication number
DE499586C
DE499586C DEA54958D DEA0054958D DE499586C DE 499586 C DE499586 C DE 499586C DE A54958 D DEA54958 D DE A54958D DE A0054958 D DEA0054958 D DE A0054958D DE 499586 C DE499586 C DE 499586C
Authority
DE
Germany
Prior art keywords
noise
dampening
vacuum cleaners
air exiting
paddle wheel
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
Application number
DEA54958D
Other languages
German (de)
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.)
AEG AG
Original Assignee
AEG AG
Publication date
Priority to DEA54958D priority Critical patent/DE499586C/en
Application granted granted Critical
Publication of DE499586C publication Critical patent/DE499586C/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00Structural features of suction cleaners
    • A47L5/12Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans

Description

0405504055

Staubsauger mit durch einen Elektromotor angetriebenem Lüfterrad erzeugen bekanntlich während des Betriebes ein stark heulendes und pfeifendes Geräusch, das auf die Umgebung äußerststörend wirkt. In geringemMaße hat man diesen Übelstand schon dadurch beseitigt, daß man für die Triebteile elastische Lagerung durch Federn, Gummipuffer u. dgl. vorsah; eine ausreichende Schalldämpfung wurde jedoch dadurch nicht erzielt.It is known to produce vacuum cleaners with a fan wheel driven by an electric motor loud howling and whistling noise during operation, affecting the surroundings is extremely disturbing. To a small extent this deficiency has already been eliminated by the fact that for the drive parts elastic mounting was provided by springs, rubber buffers and the like; a sufficient one However, this did not achieve sound attenuation.

Zur Schalldämpfung hat man ferner vorgeschlagen, kurz vor der Ausströmöffnung des Staubsaugers Drahtsiebe mit dazwischenliegender Filzschicht anzuordnen. Von dieser Ein- »5 richtung ist aber auch eine weitgehende Schalldämpfung nicht zu erwarten, da die Dämpfungsvorrichtung zu weit von dem eigentlichen Erzeuger des Geräusches, dem Windrade, entfernt ist. Auch wird durch die mehrfache Anordnung der Drahtsiebe und vor allem durch den Filz der Luftstrom gedrosselt und dadurch die Saugwirkung des Staubsaugers beeinträchtigt.For sound absorption, it has also been proposed shortly before the outflow opening of the Vacuum cleaner's wire screens with a layer of felt in between. From this one »5 direction, however, extensive sound attenuation is not to be expected, since the attenuation device is too far away from the actual generator of the noise, the wind turbine. Also is due to the multiple arrangement the wire screens and, above all, the air flow through the felt, and thus the suction effect of the vacuum cleaner.

Gegenstand der Erfindung ist eine Einrichtung an Staubsaugern mit elektrisch angetriebenen Windrädern, die fast vollständig geräuschdämpfend wirkt, so daß nur noch ein leises Summen des Motors und der ausgestoßenen Luft hörbar ist. Dies wird dadurch erreicht, daß die siebartige bzw. gelochte Wand das Schaufelrad in geringem Abstand so umgibt, daß sie von der aus dem Schaufelrad austretenden Luft ohne wesentlichen Richtungswechsel durchströmt wird. Es wird hierdurch bei Erzielung einer guten Schalldämpfung der Luftstrom in für die Saugwirkung ganz unschädlichem Maße gedrosselt.The invention relates to a device on vacuum cleaners with electrically driven Wind turbines, which almost completely dampen the noise, so that only a quiet one The hum of the engine and the exhaust air can be heard. This is achieved in that the sieve-like or perforated wall surrounds the paddle wheel at a small distance so that it is of the Air exiting the paddle wheel flows through it without any significant change of direction will. In this way, the air flow in for is achieved while achieving good sound attenuation the suction is throttled to a completely harmless extent.

In der Zeichnung ist eine beispielsweise Ausführungsform schematisch im Schnitt dargestellt. Das Schaufelrad s des Gebläses ist auf der Welle w befestigt und läuft im Betrieb im Uhrzeigerdrehsinne um. Das Gehäuse des Gebläses ist als Diffusor mit spiralenförmiger Wand cZ ausgebildet. Rings um das Schaufelrad s ist in einigem Abstande eine siebartig durchbrochene Wand g, beispielsweise aus Drahtgaze, angeord- Ί5 net, durch die die von dem Schaufelrad ausgestoßene Luft hindurchgehen muß, wodurch eine fast vollständige Geräuschdämpfung erzielt wird.In the drawing, an example embodiment is shown schematically in section. The impeller s of the fan is attached to the shaft w and rotates clockwise during operation. The housing of the fan is designed as a diffuser with a spiral-shaped wall cZ. Around the paddle wheel s a sieve-like perforated wall g, for example made of wire gauze, is arranged at some distance, through which the air expelled by the paddle wheel must pass, whereby an almost complete noise attenuation is achieved.

Claims (1)

PatentanSPRαch:Patent application: Vorrichtung zum Dämpfen des Geräusches der aus Staubsaugern austretenden Luft mittels einer feststehenden siebartigen Wand, dadurch gekennzeichnet, daß die siebartige Wand (g) das Schaufelrad (s) zylindrisch in geringstem Abstand so umgibt, daß die aus dem Schaufelrad (s) austretende Luft keinen Richtungswechsel erfährt.Device for dampening the noise of the air emerging from vacuum cleaners by means of a stationary sieve-like wall, characterized in that the sieve-like wall (g) surrounds the paddle wheel (s) zy in a very small distance so that the air escaping from the paddle wheel (s) does not Changes direction experiences. *) Von dem Patentsucher sind als die Erfinder angegeben worden:*) The patent seeker indicated the following as the inventors: Ernst Märker in Berlin-Charlottenbiirg und Heinrich Baumeister in Berlin-Pankow.Ernst Märker in Berlin-Charlottenbiirg and Heinrich Baumeister in Berlin-Pankow.
DEA54958D Device for dampening the noise of the air exiting vacuum cleaners Expired DE499586C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA54958D DE499586C (en) Device for dampening the noise of the air exiting vacuum cleaners

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA54958D DE499586C (en) Device for dampening the noise of the air exiting vacuum cleaners

Publications (1)

Publication Number Publication Date
DE499586C true DE499586C (en) 1930-06-10

Family

ID=6939759

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA54958D Expired DE499586C (en) Device for dampening the noise of the air exiting vacuum cleaners

Country Status (1)

Country Link
DE (1) DE499586C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628882A (en) * 1968-12-20 1971-12-21 Electrolux Ab Centrifugal fan structure
DE3023630A1 (en) * 1980-04-18 1981-10-22 Shop-Vac Corp., Williamsport, Pa. NOISE-ABSORBING BLOWER MOTOR HOUSING FOR VACUUM CLEANER OR THE LIKE
US6219880B1 (en) 1998-09-17 2001-04-24 Pullman-Holt Corporation Vacuum cleaner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628882A (en) * 1968-12-20 1971-12-21 Electrolux Ab Centrifugal fan structure
DE3023630A1 (en) * 1980-04-18 1981-10-22 Shop-Vac Corp., Williamsport, Pa. NOISE-ABSORBING BLOWER MOTOR HOUSING FOR VACUUM CLEANER OR THE LIKE
US6219880B1 (en) 1998-09-17 2001-04-24 Pullman-Holt Corporation Vacuum cleaner

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