IT202100022022A1 - bladed domestic purifier fan - Google Patents

bladed domestic purifier fan Download PDF

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Publication number
IT202100022022A1
IT202100022022A1 IT102021000022022A IT202100022022A IT202100022022A1 IT 202100022022 A1 IT202100022022 A1 IT 202100022022A1 IT 102021000022022 A IT102021000022022 A IT 102021000022022A IT 202100022022 A IT202100022022 A IT 202100022022A IT 202100022022 A1 IT202100022022 A1 IT 202100022022A1
Authority
IT
Italy
Prior art keywords
fan
filter
purifying filter
purifying
grille
Prior art date
Application number
IT102021000022022A
Other languages
Italian (it)
Inventor
Menezes Marcus Vinicius De
Original Assignee
Menezes Marcus Vinicius De
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Menezes Marcus Vinicius De filed Critical Menezes Marcus Vinicius De
Priority to IT102021000022022A priority Critical patent/IT202100022022A1/en
Publication of IT202100022022A1 publication Critical patent/IT202100022022A1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/70Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00Axial-flow pumps
    • F04D19/002Axial flow fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/02Selection of particular materials
    • F04D29/023Selection of particular materials especially adapted for elastic fluid pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Finger-Pressure Massage (AREA)

Description

DESCRIZIONE DESCRIPTION

dell?invenzione avente per TITOLO: of the invention having for TITLE:

?VENTILATORE PURIFICATORE DOMESTICO A PALE? ?HOME BLADE PURIFIER FAN?

RIASSUNTO SUMMARY

Ventilatore a pale utilizzabile in luoghi chiusi ad uso domestico o pubblico, per creare un flusso di aria di ventilazione purificata dalle polveri, pollini e peli, grazie al filtro posto sulla griglia posteriore di protezione. Blade fan usable in closed places for domestic or public use, to create a flow of ventilation air purified from dust, pollen and hair, thanks to the filter placed on the rear protection grille.

DESCRIZIONE DESCRIPTION

La presente invenzione riguarda la realizzazione di un ventilatore domestico a pale con la funzionalit? di purificare l?aria ventilata attravero un filtro posto sulla griglia di protezione posteriore del ventilatore stesso. The present invention relates to the construction of a domestic blade fan with the functionality to purify the air ventilated through a filter placed on the rear protection grid of the fan itself.

Come ? noto, un ventilatore a pale comprende generalmente una girante (fig. 1 ? f), avente un mozzo e una pluralit? di pale che si estendono in direzione radiale del mozzo. Il mozzo ? girevole attorno ad un asse ed ? collegato ad un motore elettrico (fig. 1 ? a) per ricevere un moto rotatorio. Le pale (fig. 1 ? e) sono provviste di un profilo alare in modo che per effetto della rotazione impressa dal motore, si genera una differenza di pressione che produce un flusso di aria in direzione parallela all?asse del mozzo (fig. 2 ? b). Le pale sono protette da una griglia metallica anteriore (fig. 1 ? i) ed una posteriore (fig. 1 ? c). La griglia di protezione posteriore ? fissata attraverso un dado (fig. 1 ? d), mentre la girante ? fissata all?asse del motore elettrico con il dado (fig. As ? known, a fan with blades generally comprises an impeller (fig. 1 ? f), having a hub and a plurality of of blades extending in the radial direction of the hub. The hub ? revolving around an axis and ? connected to an electric motor (fig. 1 ? a) to receive a rotary motion. The blades (fig. 1 ? e) are provided with a wing profile so that due to the rotation imparted by the motor, a pressure difference is generated which produces a flow of air in a direction parallel to the axis of the hub (fig. 2 b). The blades are protected by a front metal grille (fig. 1 ? i) and a rear one (fig. 1 ? c). The rear protective grille? fixed through a nut (fig. 1 ? d), while the impeller ? fixed to the electric motor shaft with the nut (fig.

1 ? g). Il principio di funzionamento ? simile a quello dell?elica di una nave o di un aereo. Questo flusso indirizzato verso una o pi? persona migliora il comfort ambientale in presenza di alte temperature estive grazie all?effetto refrigerante indotto sull?organismo dall?evaporazione dell?umidit? dell?epidermide. 1 ? g). The working principle? similar to that of the propeller of a ship or an aircraft. This flow directed towards one or more? person improves environmental comfort in the presence of high summer temperatures thanks to the cooling effect induced on the body by the evaporation of humidity of the epidermis.

Uno degli inconvenienti dei noti ventilatori a pale esistenti, ? rappresentato dal fatto che il flusso di aria generato dalla ventilazione, indirizza verso le stesse persone una quantit? concentrata di polveri, polline e peli presenti nell?aria che soprattutto nelle grandi citt?, presenta un livello elevato di queste sostanze inquinanti. Tali impurit? sono gi? evidenti sulla griglia posteriore e sulle pale dei ventilatori, dopo poche settimane di utilizzo del ventilatore. One of the drawbacks of the known existing bladed fans, ? represented by the fact that the flow of air generated by the ventilation directs towards the same people a quantity? concentration of dust, pollen and hair present in the air which, especially in large cities, has a high level of these polluting substances. Such impurities? I'm already evident on the rear grille and on the fan blades, after a few weeks of use of the fan.

Sono noti inoltre ventilatori senza pale apparenti, che a differenza dei comuni ventilatori non hano le classiche pale visibili. In questo caso l'aria viene aspirata dalla parte bassa del ventilatore, che fa da supporto, tramite una comune ventola centrifuga orizzontale al piano di appoggio e una volta purificata, viene iniettata a forte velocit? nell'anello circolare sfruttando l?effetto Coanda. Fans without apparent blades are also known, which unlike common fans do not have the classic visible blades. In this case the air is sucked in from the lower part of the fan, which acts as a support, through a common horizontal centrifugal fan on the support surface and once purified, it is injected at high speed in the circular ring using the Coanda effect.

Un inconveniente di questi ventilatori senza pale apparenti ? rappresentato dal fatto che l?aria che raggiunge l?utente ? generalmente pi? calda della temperatura dell?aria presente nell?ambiente dando una sensazione poco gradevole per l?utente. A drawback of these fans without apparent blades? represented by the fact that the air that reaches the user? generally more temperature of the air present in the environment giving an unpleasant feeling for the user.

Un?ulteriore inconveniente di questi ventilatori ? dato dal fatto che l?aria in ingresso nel ventilatore viene prelevata in una zona inferiore dove ? presente il motore, in sostanziale corrispondenza o prossimit? con la base del ventilatore stesso. In questo modo oltre ad aspirare l?aria presente nell?ambiente, il ventilatore aspira anche le polveri e le impurit? presenti in quantit? maggiori proprio in prossimit? della base dove poggia il ventilatore. A further drawback of these fans? given by the fact that the air entering the fan is taken from a lower area where ? present the engine, in substantial correspondence or proximity? with the base of the fan itself. In this way, in addition to sucking in the air present in the environment, the fan also sucks in dust and impurities. present in quantity greater right in the vicinity? of the base where the fan rests.

Inoltre, contrariamente ai ventilatori a pale i quali hanno un moto oscillatorio orizzontale continuo, la zona di aspirazione dell?aria ? fissa e non contribuisce alla circolazione dell?aria. Furthermore, contrary to bladed fans which have a continuous horizontal oscillatory motion, the air intake area is? fixed and does not contribute to air circulation.

Nella presente invenzione, l?elemento innovativo ? rappresentato dal filtro purificante (fig. 1 ? b) inserito posteriormente al ventilatore a ridosso della griglia di protezione. in questo modo l?aria ?aspirata? dalla parte posteriore del ventilatore (fig. 2 ? a) attraversa il filtro venendo depurata dalle polveri presenti e reimmessa in circolo (fig. 2 ? b). In the present invention, the innovative element is represented by the purifying filter (fig. 1 ? b) inserted at the rear of the fan close to the protection grid. in this way the air? aspirated? from the rear of the fan (fig. 2 ? a) it passes through the filter, being purified of the dust present and reintroduced into the circulation (fig. 2 ? b).

Il funzionamento costante delle pale del ventilatore e la sua oscillazione orizzontale, permetter? via via a tutto l?ambiente circostante ad esso, di essere sempre pi? purificato dalle polveri in considerazione del fatto che sar? sempre l?aria presente nell?ambiente ad essere reimmessa in circolo passando pi? volte dal filtro. The constant operation of the fan blades and its horizontal oscillation, will allow? gradually to all? Surrounding environment to it, to be more and more? purified from dust in view of the fact that sar? always l?air present in?environment to be put back into circulation passing more? times from the filter.

Il presente trovato fornisce una soluzione innovativa, economica ed efficiente alla purificazione dell?aria ventilata. The present invention provides an innovative, economical and efficient solution for the purification of ventilated air.

E? una soluzione innovativa perch? per la prima volta viene inserito il filtro purificatore sui noti ventilatori a pale. E? una soluzione economica in quanto si ottiene l?effetto filtrante con un?idea semplice che non stravolge la produzione del prodotto finito. E? una soluzione efficiente perch? il filtro purificatore posto dopo il motore non determina alcun riscaldamento dell?aria stessa che viene ad essere prelevata dall?ambiente ad altezze superiori rispetto ai ventilatori senza pale. AND? an innovative solution why? for the first time the purifying filter is inserted on the well-known blade fans. AND? an economic solution as the filtering effect is obtained with a simple idea that does not upset the production of the finished product. AND? an efficient solution why? the purifying filter placed after the motor does not cause any heating of the air itself which is drawn from the environment at higher heights than with bladeless fans.

Inoltre la tecnica di ventilazione utilizzata ? quella generata dalla differenza di pressione dovuta dalla rotazione delle pale e non dall?effetto Coanda utilizzato nei ventilatori senza pale apparenti. Furthermore, the ventilation technique used? the one generated by the pressure difference due to the rotation of the blades and not by the Coanda effect used in fans without apparent blades.

Claims (9)

RIVENDICAZIONI 1. Ventilatore comprendente: una girante, avente un mozzo ed una pluralit? di pale radiali al mozzo, una griglia di protezione anteriore ed una griglia di protezione posteriore con filtro.1. A fan comprising: an impeller, having a hub and a plurality of of radial blades at the hub, a front protection grille and a rear protection grille with filter. 2. Ventilatore come nella rivendicazione 1. dove la griglia di protezione posteriore ? ricoperta per tutta la sua dimensione, da un filtro purificante che viene applicato sulla parte esterna della griglia.2. Fan as in claim 1. where is the rear protection grille? covered throughout its size by a purifying filter which is applied to the outside of the grill. 3. Ventilatore come nella rivendicazione 1 e 2 dove il filtro purificante ha un buco al centro delle dimensioni tali da permettere il passaggio dell?asse del motore elettrico collegato alla girante.3. Fan as in claims 1 and 2 wherein the purifying filter has a hole in the center of such dimensions as to allow the passage of the axis of the electric motor connected to the impeller. 4. Ventilatore come nelle rivendicazioni precedenti dove il filtro purificante aderisce alla griglia posteriore grazie al blocco ottenuto dall?anello (Fig. 1 ? h) della griglia di protezione anteriore (Fig. 1 ? i) che andr? a sovrapporsi lungo la circonferenza del filtro e della griglia posteriore. 4. Fan as in the previous claims where the purifying filter adheres to the rear grid thanks to the block obtained by the ring (Fig. 1 ? h) of the front protection grid (Fig. 1 ? i) which will go? to overlap along the circumference of the filter and the rear grille. 5. Ventilatore come nelle rivendicazioni precedenti dove l?aderenza del filtro alla griglia viene ulteriormente rafforzata grazie alla pressione negativa esercitata dalla rotazione delle pale. 5. Fan as in the preceding claims wherein the adherence of the filter to the grid is further strengthened thanks to the negative pressure exerted by the rotation of the blades. 6. Ventilatore come nelle rivendicazioni precedenti dove il filtro purificatore ha una capacit? filtrante tale da non alterare, o ad alterarla in modo non rilevante, la portata in m3/h dell?aria ventilata.6. Fan as in the preceding claims wherein the purifying filter has a capacity? filter such as not to alter, or to alter it in a negligible way, the flow rate in m3/h of the ventilated air. 7. Ventilatore come nelle rivendicazioni precedenti dove il filtro purificatore pu? essere sostituito una volta esaurita la capacit? purificante a causa dell?accumularsi delle polveri.7. Fan as in the previous claims where the purifying filter can? be replaced once the capacity is exhausted? purifying due to the accumulation of dust. 8. Ventilatore come nelle rivendicazioni precedenti dove il filtro purificatore ? in fibra di vetro.8. Fan as in the preceding claims wherein is the purifying filter? fiberglass. 9. Ventilatore come nelle rivendicazioni precedenti dove il filtro purificatore ? in fibra di vetro e carboni attivi. 9. Fan as in the preceding claims wherein is the purifying filter? fiberglass and activated carbon.
IT102021000022022A 2021-08-18 2021-08-18 bladed domestic purifier fan IT202100022022A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT102021000022022A IT202100022022A1 (en) 2021-08-18 2021-08-18 bladed domestic purifier fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102021000022022A IT202100022022A1 (en) 2021-08-18 2021-08-18 bladed domestic purifier fan

Publications (1)

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IT202100022022A1 true IT202100022022A1 (en) 2023-02-18

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62138894U (en) * 1986-02-27 1987-09-01
JP2007239557A (en) * 2006-03-07 2007-09-20 Casle Kk Filter for electric fan
JP2008063948A (en) * 2006-09-04 2008-03-21 Fukushima Seikansho:Kk Filter of electric fan
JP2010116808A (en) * 2008-11-12 2010-05-27 Sanyo Electric Co Ltd Electric fan

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62138894U (en) * 1986-02-27 1987-09-01
JP2007239557A (en) * 2006-03-07 2007-09-20 Casle Kk Filter for electric fan
JP2008063948A (en) * 2006-09-04 2008-03-21 Fukushima Seikansho:Kk Filter of electric fan
JP2010116808A (en) * 2008-11-12 2010-05-27 Sanyo Electric Co Ltd Electric fan

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