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EP1384808A1 - Electric device for electric domestic appliances such as a vacuum cleaner, liquid suction device, steam iron and suchlike, for domestic and/or professional use - Google Patents

Electric device for electric domestic appliances such as a vacuum cleaner, liquid suction device, steam iron and suchlike, for domestic and/or professional use

Info

Publication number
EP1384808A1
EP1384808A1 EP20030015008 EP03015008A EP1384808A1 EP 1384808 A1 EP1384808 A1 EP 1384808A1 EP 20030015008 EP20030015008 EP 20030015008 EP 03015008 A EP03015008 A EP 03015008A EP 1384808 A1 EP1384808 A1 EP 1384808A1
Authority
EP
Grant status
Application
Patent type
Prior art keywords
electric
power
device
resistance
elements
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
EP20030015008
Other languages
German (de)
French (fr)
Other versions
EP1384808B1 (en )
Inventor
Flavio Passuello
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.)
COMMITAL SAMI SpA
Commital-Sami SpA
Original Assignee
COMMITAL-SAMI S.P.A.
COMMITAL SAMI SPA
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

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/34Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00Hand irons
    • D06F75/08Hand irons internally heated by electricity
    • D06F75/10Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/12Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water supplied to the iron from an external source
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00Hand irons
    • D06F75/08Hand irons internally heated by electricity
    • D06F75/24Arrangements of the heating means within the iron; Arrangements for distributing, conducting, or storing the heat

Abstract

Electric device (10) for electric domestic appliances, such as vacuum cleaners, liquid suction devices, irons or suchlike. The device (10) comprises three autonomous absorption elements (14, 16, 18) to absorb electric loads, able to be selectively connected to the electric network. An electric connection element (24) can be selectively activated to connect, in a first operating condition, a first element (14) directly to the electric network and to exclude the other two elements (16, 18) from electric feed and, in a second operating condition, the first element (14) in series with a second (16) of the elements and, simultaneously, a third (18) of the elements in parallel with the first two, in order to distribute the electric power between the three elements (14, 16, 18).

Description

    FIELD OF THE INVENTION
  • [0001]
    The present invention concerns an electric device for an electric domestic appliance, such as a vacuum cleaner, a liquid suction device, a steam iron or suchlike, which can have both domestic and professional applications. The electric device comprises at least three autonomous absorption elements to absorb a determinate electric load, connected to the same electric feeder. A switch, or other electric connection means, is able to connect the feeder, in a first operating condition, to only one of the loads, and in a second operating condition, to all three loads, to distribute in a balanced manner, and exploit to the maximum, all the electric power available in order to make the electric domestic appliance function.
  • BACKGROUND OF THE INVENTION
  • [0002]
    An electric device is known for a steam iron, comprising a first electric resistance R1 and a second electric resistance R2, arranged one above the other inside a boiler to transform water into steam, and a third electric resistance R3 to heat the plate of the iron. Advantageously, R2 = R3.
  • [0003]
    In a first operating condition, the first and second electric resistance are connected in parallel by means of a monopole type switch of a conventional type, for example a relay, while the third electric resistance is excluded from the electric feed.
  • [0004]
    In a second operating condition, the electric switch excludes the second resistance from the electric feed and connects the third electric resistance in parallel to the first, still keeping the maximum power absorbed by the network unvaried.
  • SUMMARY OF THE INVENTION
  • [0005]
    The present invention is set forth and characterized essentially in the main claim, while the dependent claims describe other innovative characteristics of the invention.
  • [0006]
    The purpose of the present invention is to achieve a device for electric domestic appliances, such as a vacuum cleaner provided with a boiler to generate steam, a liquid suction device, a steam iron or suchlike, by means of which it is possible to connect selectively and in optimum manner the electric feed only to one of the absorption elements to absorb the electric loads of the electric appliance, or to all the electric absorption elements of the same appliance.
  • [0007]
    In accordance with this purpose, an electric device for electric domestic appliances comprises at least three autonomous absorption elements to absorb electric loads, able to be selectively connected to a same feeder of electric power. Electric connection means can be selectively activated to connect, in a first operating condition, a first of the elements directly to the feeder and to exclude the other two elements from the electric feed, and to connect, in a second operating condition, the first element in series with a second element and, simultaneously, a third element in parallel with the first two, in order to distribute the electric power between the three elements.
  • [0008]
    Each of the absorption elements comprises a corresponding electric resistance able to absorb a pre-set maximum electric power, for example to heat a plate of an iron, to heat water in a boiler to generate steam, to drive an electric motor installed in an aspirator, a fan or suchlike.
  • [0009]
    The electric connection means comprise, for example, a switch of the bipolar type, which can be activated either manually or electronically, and is able, in the second operating condition, to simultaneously connect all three elements.
  • [0010]
    The first and the second element are able to absorb, for example, a maximum power equal to the electric power delivered by the feeder, while the third element is able to absorb a maximum power less than that delivered by the feeder, preferably half.
  • [0011]
    Consequently, in the first operating condition, all the power of the feeder is absorbed by the first element, while in the second operating condition the power is distributed between the three elements according to the corresponding maximum power of absorption.
  • [0012]
    For example, in one application of the electric device according to the present invention, the feeder is able to deliver a power equal to 2200W, the first and the second element are able to absorb a maximum power of 2200W, whereas the third element is able to absorb a maximum power of 1100W. In the second operating condition, therefore, the electric power of the feeder is distributed equally between the third element, which absorbs 1100W, and the pair of the first two elements which in series absorb the remaining power of 1100W.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0013]
    These and other characteristics of the present invention will become apparent from the following description of a preferential form of embodiment, given as a non-restrictive example with reference to the attached drawings wherein:
    • fig. 1 is a schematic view of a steam iron provided with the electric device according to the present invention;
    • fig. 2 is an electric diagram of the device according to the present invention in a first operating condition;
    • fig. 3 is the electric diagram of fig. 2 in a second operating condition.
    DETAILED DESCRIPTION OF A PREFERENTIAL FORM OF EMBODIMENT OF THE INVENTION
  • [0014]
    With reference to fig. 1, an electric device 10 according to the present invention is shown applied to an electric domestic appliance 11, represented here by a steam iron of a conventional type. It is clear that the electric device 10 can also be applied to any aspirator of a conventional type, such as a vacuum cleaner, a liquid suction device or suchlike.
  • [0015]
    The electric device 10 comprises a first electric resistance 14 and a second electric resistance 16, arranged one next to the other, inside a water accumulation tank, or boiler 12, in order to transform water into steam.
  • [0016]
    The electric device 10 also comprises a third electric resistance 18, arranged directly in contact with an ironing plate 20, in order to heat the latter. The third electric resistance 18 can also represent the load of the aspirator.
  • [0017]
    An electric switch 24 is able to selectively connect, in a first operating condition shown schematically in fig. 2, the first electric resistance 14 directly to the feeder 22 and exclude the other resistances 16 and 18. In a second operating condition, on the contrary, the electric switch 24, as shown schematically in fig. 3, is able to connect in series the first electric resistance 14 and the second electric resistance 16 and, in parallel to the other two, the third resistance 18, so as to distribute between the three resistances the power of the feeder 22, corresponding, for example, to 2200W.
  • [0018]
    Therefore, in the first operating condition, only a single electric load, consisting of the first electric resistance 14, is connected to the feeder 22. In this way, the electric resistance 14 can absorb a load of up to 2200W and the feeder 22 supplies all the available power to it. The resistance 14, furthermore, is able to be always immersed in the water of the boiler 12, and hence ensures a constant transmission of heat to the water contained in the boiler 12.
  • [0019]
    On the contrary, the second operating condition is selectively activated when a double electric load is required, on the one hand to transform water into steam inside the boiler 12, and on the other hand to feed the third electric resistance 18 to heat the plate 20, or to make the suction power available.
  • [0020]
    The second electric resistance 16 is able to absorb a maximum power equal to, for example, 2200W, while the third electric resistance 18 is able to absorb a maximum power less than that of the first two, equal for example to 1100W.
  • [0021]
    The maximum power available of 2200W, in said second condition, is distributed equally between the three resistances 14, 16, 18. To be more exact, the third resistance 18 absorbs up to 1100W, while the first resistance 14 and the second resistance 16 together absorb the remaining 1100W.
  • [0022]
    In this double load condition, the arrangement in series of the first electric resistance 14 and the second electric resistance 16, compared to the state of the art and given the same power absorbed, allows to double the surface of heat exchange for heating the water in the boiler 12, and consequently to obtain a reduction in the heating time of the water itself.
  • [0023]
    According to another variant, the switch 24 is of the electronic type, and is automatically commanded by means of an electronic unit 26, according to the temporary requirements of the iron 10.
  • [0024]
    It is clear however that modifications or additions of parts may be made to the electric device 10 as described heretofore, but these shall remain within the field and scope of the present invention.
  • [0025]
    It is also clear that, although the present invention has been described with reference to specific examples, a person of skill shall certainly be able to achieve many other equivalent forms of electric device 10, all of which shall come within the field of protection of the present invention.

Claims (9)

  1. Electric device for electric domestic appliances, such as vacuum cleaners, liquid suction devices, irons or suchlike, comprising at least three autonomous absorption elements (14, 16, 18) to absorb electric loads, able to be selectively connected to a feeder (22) of electric power, characterized in that electric connection means (24) are able to be selectively activated to connect, in a first operating condition, a first of said elements (14) directly to said feeder (22) and to exclude the other two elements (16, 18) from the electric feed and, in a second operating condition, said first element (14) in series with a second (16) of said elements and, simultaneously, a third (18) of said elements in parallel with the first two, in order to distribute the electric power between said three elements (14, 16, 18).
  2. Electric device as in claim 1, characterized in that said absorption elements (14, 16, 18) each comprise a corresponding electric resistance able to absorb a pre-set maximum power.
  3. Electric device as in claim 1 or 2, characterized in that said first element (14) and said second element (16) are individually able to absorb a power equal to that supplied by said feeder (22) or available from the electric network.
  4. Electric device as in any claim hereinbefore, characterized in that said first element (14) and said second element (16) are able to absorb together in a serial-type connection an electric power equal to half that supplied by said feeder (22).
  5. Electric device as in any claim hereinbefore, characterized in that said third element (18) is able to absorb at most an electric power equal to half the power delivered by said feeder (22).
  6. Electric device as in any claim hereinbefore, characterized in that said electric connection means comprise a switch of the bipolar type (24).
  7. Electric device as in any claim from 1 to 4 inclusive, characterized in that it also comprises another absorption element to absorb an electric load, able to be connected by means of said electric connection means (24) in parallel to at least one of said three elements (14, 16, 18) in said first operating condition or in said second operating condition.
  8. Electric device as in any claim hereinbefore, characterized in that said feeder (22) is able to deliver a power at least equal to 2200W.
  9. Electric device as in any claim hereinbefore, characterized in that said electric connection means comprise a switch (24) able to be activated electronically and to be commanded by an electronic control unit (26).
EP20030015008 2002-07-04 2003-07-02 Electric device for electric domestic appliances such as a vacuum cleaner, liquid suction device, steam iron and suchlike, for domestic and/or professional use Not-in-force EP1384808B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITUD20020149 2002-07-04
ITUD20020149 2002-07-04

Publications (2)

Publication Number Publication Date
EP1384808A1 true true EP1384808A1 (en) 2004-01-28
EP1384808B1 EP1384808B1 (en) 2006-05-31

Family

ID=11460725

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030015008 Not-in-force EP1384808B1 (en) 2002-07-04 2003-07-02 Electric device for electric domestic appliances such as a vacuum cleaner, liquid suction device, steam iron and suchlike, for domestic and/or professional use

Country Status (2)

Country Link
EP (1) EP1384808B1 (en)
DE (1) DE60305583D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006051483A1 (en) * 2004-11-11 2006-05-18 Koninklijke Philips Electronics N.V. Steam iron having two flat resistive heating elements for heating the soleplate

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940826A (en) * 1973-10-12 1976-03-02 Clarke-Gravely Corporation Portable surface cleaner
US4046989A (en) * 1976-06-21 1977-09-06 Parise & Sons, Inc. Hot water extraction unit having electrical immersion heater
US4939342A (en) * 1986-01-13 1990-07-03 U.S. Philips Corp. Electric steam iron with separately heated sole plate and steam chamber
EP0517673A1 (en) * 1991-05-24 1992-12-09 ROSSI GROUP S.p.A. A steam ironing machine
US5555595A (en) * 1995-05-26 1996-09-17 Better Cleaning System, Inc. Carpet cleaner unit with adjustable power control
US6263596B1 (en) * 1997-07-22 2001-07-24 Seb S.A. Iron comprising two heating means with particular automatic temperature control mode
US20020056170A1 (en) * 2000-11-14 2002-05-16 Pileggi Eugene J. Apparatus for cleaning an object surface

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940826A (en) * 1973-10-12 1976-03-02 Clarke-Gravely Corporation Portable surface cleaner
US4046989A (en) * 1976-06-21 1977-09-06 Parise & Sons, Inc. Hot water extraction unit having electrical immersion heater
US4939342A (en) * 1986-01-13 1990-07-03 U.S. Philips Corp. Electric steam iron with separately heated sole plate and steam chamber
EP0517673A1 (en) * 1991-05-24 1992-12-09 ROSSI GROUP S.p.A. A steam ironing machine
US5555595A (en) * 1995-05-26 1996-09-17 Better Cleaning System, Inc. Carpet cleaner unit with adjustable power control
US6263596B1 (en) * 1997-07-22 2001-07-24 Seb S.A. Iron comprising two heating means with particular automatic temperature control mode
US20020056170A1 (en) * 2000-11-14 2002-05-16 Pileggi Eugene J. Apparatus for cleaning an object surface

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006051483A1 (en) * 2004-11-11 2006-05-18 Koninklijke Philips Electronics N.V. Steam iron having two flat resistive heating elements for heating the soleplate
US7472504B2 (en) 2004-11-11 2009-01-06 Koninklijke Philips Electronics N.V. Steam iron having two flat resistive elements for heating the soleplate
CN101072911B (en) 2004-11-11 2011-06-08 皇家飞利浦电子股份有限公司 Steam iron having two flat resistive heating elements for heating the soleplate

Also Published As

Publication number Publication date Type
EP1384808B1 (en) 2006-05-31 grant
DE60305583D1 (en) 2006-07-06 grant

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