EP0363329A2 - Dispositif de ventilation pour hottes avec un filtre de nettoyage ionique à commande manuelle ou automatique - Google Patents

Dispositif de ventilation pour hottes avec un filtre de nettoyage ionique à commande manuelle ou automatique Download PDF

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Publication number
EP0363329A2
EP0363329A2 EP89830351A EP89830351A EP0363329A2 EP 0363329 A2 EP0363329 A2 EP 0363329A2 EP 89830351 A EP89830351 A EP 89830351A EP 89830351 A EP89830351 A EP 89830351A EP 0363329 A2 EP0363329 A2 EP 0363329A2
Authority
EP
European Patent Office
Prior art keywords
ionic
filter
conveyor unit
hoods
automatic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89830351A
Other languages
German (de)
English (en)
Other versions
EP0363329A3 (en
EP0363329B1 (fr
Inventor
Giovanni Berardi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT89830351T priority Critical patent/ATE81903T1/de
Publication of EP0363329A2 publication Critical patent/EP0363329A2/fr
Publication of EP0363329A3 publication Critical patent/EP0363329A3/en
Application granted granted Critical
Publication of EP0363329B1 publication Critical patent/EP0363329B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2035—Arrangement or mounting of filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/08—Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/32—Transportable units, e.g. for cleaning room air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/36—Controlling flow of gases or vapour
    • B03C3/368—Controlling flow of gases or vapour by other than static mechanical means, e.g. internal ventilator or recycler
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/45—Collecting-electrodes
    • B03C3/47—Collecting-electrodes flat, e.g. plates, discs, gratings

Definitions

  • This invention for an industrial utility model concerns a conveyor unit for hoods with manual and automatic ionic cleaning filter.
  • This invention was designed after considerable study and research to realize a device which would on one hand improve the performance and practicality of current home filtering hoods and on the other, provide specific functions which standard hoods do not offer.
  • current filtering hoods used over cookers for drawing the hot air and fumes produced by cooking generally consist of an external, approximately parallelepiped casing in which all the mechanical and electrical components necessary for operation, are fitted.
  • the following components which are fitted to a plastic modular unit are housed in this support casing: the exhaust fan with motor, the air conveyor and various electrical controls in addition to a set of active carbon filters for cleaning the air drawn, before this is introduced into the room through an outlet.
  • the new conveyor unit according to the invention was designed successfully to resolve these problems, in that the same can house an ionic cleaner which acts as the filtering elements, and can therefore ensure efficient operating results.
  • this can be carried out periodically once a year, compared to the necessity of replacing the active carbon filtering cartridges every month.
  • the most significant feature of this invention is that the ionic cleaning filter, which is fitted together with the complete support block in a standard kitchen hood, has been interlocked with a series of controls which offer manual control by the user, and automatic control occurring in accordance to specific situations caused by the use of the cooker (production of fumes and/or heat).
  • an air conveyor and filtering device similar to that of this patent application can be used not only in a standard parallelepiped casing for traditional use over a cooker, but also inside a steel box for use in different applications or even for use in rooms other than a kitchen - as for example in bathrooms - in which fumes or heat are produced and where there is the risk of harmful or dangerous gas leaks.
  • This conveyor unit is made of moulded plastic materials in a shape suitable for containing the different device components, in particular the following: the actual air conveyor, the exhaust fan with a vertical axis and its operating motor.
  • the most important feature of this invention is that there is a moulded compartment with rectangular plan under this conveyor unit, in which the ionic cleaning filter is fitted and from which it can be removed easily and quickly.
  • This ionic filter consists of a series of identical metal plates made of a suitable material, fitted on top of one another horizontally with a small space between each other, on which an electrostatic field is created, by means of electric connections, to carry out the ionic cleaning process of the air flow passing through; this filtering process occurs since this electrostatic field holds back the dirt molecules in the air which passes through the metal plates.
  • a device of this type ensures the fully automatic suction and cleaning of vitiated air of any fumes which are harmful to human health or dangerous for the safety of structures surrounding the heat source, even when the user is absent.
  • the device according to this patent application can be fitted in a compartment having a different shape next to or above other types of home appliances such as boilers, burners, gas cookers etc., instead of being fitted above a cooking hob.
  • the device in question consists of a body made of moulded plastic materials (1) which is not only suitably shaped to act as an air conveyor but can also house the different operating parts necessary for drawing the air.
  • a fan (V) with a vertical axis can be seen, for drawing the vitiated air and operated by an electric motor (M) which is in turn controlled by hand by means of switches (I) on the control panel fitted at the front of the hood, or alternatively operated as a result of automatic impulses transmitted to the same, when necessary, by sensors for detecting the presence of kitchen odours, vapours, heat or gas in the air.
  • M electric motor
  • a box-shaped, parallelepiped compartment (D) with rectangular plan is produced at the bottom of this block (1) during the only moulding phase, in which the actual ionic filter (F) can be fitted and fixed with screws;
  • the ionic filter (F) consists of four rectangular, metal plates (2) supported in an overlying and staggered position by two longitudinal bearing sides (2a) where the longitudinal edges of these plates are embedded; these sides (2a) project from a base plate (2b) which is made of moulded plastic together with the two longitudinal sides (2a).
  • the overlying plates (2) are shorter than the longitudinal sides (2a), inside of which they must be placed so that the respective air passages are not vertically aligned but alternated; in other words two consecutive plates must allow a passage for the air, one towards the side right hand edge and the other towards the left hand edge, and so on.
  • the ionic filter operates as follows: when the exhaust fan is switched on, the vitiated air which is drawn from the bottom towards the top, starts to enter the box-shaped compartment (D) through the passage on the lower plate (2), immediately behind the above bottom plate (2b); in order to rise to the air conveyor in the support component (1), the air is therefore forced to flow in the subsequent horizontal air spaces between the plates in alternating directions, from right to left, since the passages on the next plates, namely the only possible passage sections, are placed in alternating positions towards the two opposite side ends of the box-shaped compartment (D).
  • the complete conveyor unit (1) complete with ionic filter (F)
  • ionic filter (F) is fitted in the casing of a kitchen hood (as illustrated in figure 3); an additional ionic filter (F1) could be fitted close to the air conveyor outlet, in order to filter the air again before this is returned to the room.
  • the filtering components that is the metal plates, of an exhaust fan fitted with ionic filters
  • the filtering components are not subject to wear as in the case of active carbon cartridges, but at the most may be subject to become progressively dirty as a result of the repeated deposits of dirt transported in the air which is drawn;
  • the structural shape of the ionic filter (F) has been designed to allow even the most inexperienced housewife to remove it easily and quickly in order to clean it, which as mentioned previously, need only be done once a year.
  • the ionic filter (F) When the ionic filter (F) has been removed from the compartment (D), it can be washed easily by soaking in a solution of standard solvents.
  • the electric system for operating the cleaning system can also be housed on the conveyor unit in question, in addition to the box housing the electronic system for the automatic operation of the unit, which switches on automatically when heat, kitchen odours, fumes and even gas leaks are detected.
  • the filter (F) an alternative construction version of which is illustrated in fig. 5, while maintaining its box shape, could be fitted with two transverse opposite sides (2a) instead of longitudinal edges, for supporting the four rectangular overlying and straggered metal plates (2′), with a smaller width than that of the support sides (2a′) projecting from the base plate (2b′) made in moulded plastic material together with the above two edges.
  • the staggered arrangement of the four metal plates (2′) makes the air passages alternated, one in front of the filter and the other, immediately above or below, at the back of the filter.
  • This filter could also be fixed with release sliders instead of traditional screws, since the former are more practical and easier to move.
EP89830351A 1988-08-05 1989-07-26 Dispositif de ventilation pour hottes avec un filtre de nettoyage ionique à commande manuelle ou automatique Expired - Lifetime EP0363329B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89830351T ATE81903T1 (de) 1988-08-05 1989-07-26 Luftfoerderer fuer eine ionische filterhaube mit automatik oder mit handbedienung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8800566U IT215797Z2 (it) 1988-08-05 1988-08-05 Blocco convogliatore per cappette con filtro depuratore ionico a comando manuale
IT56688U 1988-08-05

Publications (3)

Publication Number Publication Date
EP0363329A2 true EP0363329A2 (fr) 1990-04-11
EP0363329A3 EP0363329A3 (en) 1990-05-23
EP0363329B1 EP0363329B1 (fr) 1992-10-28

Family

ID=11099513

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89830351A Expired - Lifetime EP0363329B1 (fr) 1988-08-05 1989-07-26 Dispositif de ventilation pour hottes avec un filtre de nettoyage ionique à commande manuelle ou automatique

Country Status (4)

Country Link
EP (1) EP0363329B1 (fr)
AT (1) ATE81903T1 (fr)
ES (1) ES2036842T3 (fr)
IT (1) IT215797Z2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9311478U1 (de) * 1993-08-02 1993-09-30 Bhl Blechbearbeitungs Gmbh Filtereinsatz für eine Dunstabzugshaube
US6820609B2 (en) * 2002-04-03 2004-11-23 Vent-A-Hood Ltd. Low-profile ventilation hood
JP2014001862A (ja) * 2012-06-15 2014-01-09 Corona Corp 燃焼装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678655A (en) * 1969-06-03 1972-07-25 Ronald N Rose Electrostatic precipitator cell for desk or tabletop air purifier
DE2146288A1 (de) * 1971-09-16 1973-03-22 Bosch Hausgeraete Gmbh Kuechendunstabzugshaube zum abscheiden von wrasen und verunreinigungen aus der raumluft
FR2398553A1 (fr) * 1977-07-29 1979-02-23 Prl Soc Hotte pour cuisiniere
EP0271457A2 (fr) * 1986-12-15 1988-06-15 Franco Mantini Epurateur d'air électrostatique, notamment pour hotte aspirante de cuisine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678655A (en) * 1969-06-03 1972-07-25 Ronald N Rose Electrostatic precipitator cell for desk or tabletop air purifier
DE2146288A1 (de) * 1971-09-16 1973-03-22 Bosch Hausgeraete Gmbh Kuechendunstabzugshaube zum abscheiden von wrasen und verunreinigungen aus der raumluft
FR2398553A1 (fr) * 1977-07-29 1979-02-23 Prl Soc Hotte pour cuisiniere
EP0271457A2 (fr) * 1986-12-15 1988-06-15 Franco Mantini Epurateur d'air électrostatique, notamment pour hotte aspirante de cuisine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9311478U1 (de) * 1993-08-02 1993-09-30 Bhl Blechbearbeitungs Gmbh Filtereinsatz für eine Dunstabzugshaube
US6820609B2 (en) * 2002-04-03 2004-11-23 Vent-A-Hood Ltd. Low-profile ventilation hood
JP2014001862A (ja) * 2012-06-15 2014-01-09 Corona Corp 燃焼装置

Also Published As

Publication number Publication date
ES2036842T3 (es) 1993-06-01
EP0363329A3 (en) 1990-05-23
IT8800566V0 (it) 1988-08-05
IT215797Z2 (it) 1990-11-14
EP0363329B1 (fr) 1992-10-28
ATE81903T1 (de) 1992-11-15

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