EP3162949A1 - Trägerelement zur verbindung eines trocknungssystems eines zur durchführung von mindestens einem trocknungszyklus angepassten haushaltsgeräts, und haushaltsgerät mit besagtem trägerelement - Google Patents

Trägerelement zur verbindung eines trocknungssystems eines zur durchführung von mindestens einem trocknungszyklus angepassten haushaltsgeräts, und haushaltsgerät mit besagtem trägerelement Download PDF

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Publication number
EP3162949A1
EP3162949A1 EP15192264.8A EP15192264A EP3162949A1 EP 3162949 A1 EP3162949 A1 EP 3162949A1 EP 15192264 A EP15192264 A EP 15192264A EP 3162949 A1 EP3162949 A1 EP 3162949A1
Authority
EP
European Patent Office
Prior art keywords
support element
tub
household appliance
engaging portion
drying system
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
EP15192264.8A
Other languages
English (en)
French (fr)
Other versions
EP3162949B1 (de
Inventor
William PAOLINI
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.)
Whirlpool EMEA SpA
Original Assignee
Whirlpool EMEA 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
Application filed by Whirlpool EMEA SpA filed Critical Whirlpool EMEA SpA
Priority to EP15192264.8A priority Critical patent/EP3162949B1/de
Publication of EP3162949A1 publication Critical patent/EP3162949A1/de
Application granted granted Critical
Publication of EP3162949B1 publication Critical patent/EP3162949B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/261—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements
    • D06F37/262—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements made of plastic material, e.g. by injection moulding
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis

Definitions

  • the present invention refers to a support element for a household appliance adapted to perform at least a drying cycle, such as a washing/drying machine or a drying machine.
  • the present invention also refers to a household appliance adapted to perform at least a drying cycle, such as a washing/drying machine or a drying machine provided with said support element.
  • Drying machines and washing/drying machines comprise a rotating drum in which the items to be dried are placed.
  • the drum is rotatably mounted in a tub.
  • a recirculation line To perform the drying through a recirculation line, the air is extracted from the tub, treated and reintroduced therein.
  • the recirculation line includes:
  • the casing is usually made of metal, such as for example stainless steel or aluminum.
  • the tub is usually made of plastic material.
  • the casing of the blowing unit reaches high temperatures in working conditions, given to the flow of hot air that passes therethrough.
  • heat might be transferred from the casing to the tub (which, as said, is made of plastic material), thereby locally melting or, in general terms, damaging the tub itself.
  • the basic idea of the present invention is to realize a support element made of thermally insulating material, by means of which the blowing unit is mounted on the external surface of the tub, said support element being substantially made in one piece.
  • the invention refers to a support element adapted to connect a drying system of a household appliance configured to perform at least a drying cycle to a tub of said household appliance, said support element being made of a thermally insulating material, wherein said support element comprises:
  • the housing formed by said upper part and lower part is a slot wherein the engaging portion is adapted to be inserted.
  • said slot has a first section substantially extending according to a first plane and a second section substantially extending according to a second plane, said first plane having a different tilt than said second plane.
  • said upper part is provided with a protrusion and said engaging portion is provided with a cavity, said protrusion being adapted to be inserted into said cavity.
  • the engagement between said protrusion and said cavity prevents a displacement of said engaging portion in a direction substantially transverse relative to a direction according to which said engaging portion is inserted in / removed from said housing.
  • said base portion has a shape that is substantially complementary to a shape of a respective stem protruding from said tub on which said base portion is adapted to be mounted.
  • said base portion has a plurality of legs and said respective stem has a plurality of grooves, said legs being adapted to be inserted in said grooves.
  • said support element comprises fixing means adapted to fix, preferably to crimp, said engaging portion into said housing.
  • said fixing means comprises:
  • said fixing means is also adapted to fix said support element to said tub.
  • said fixing element is adapted to engage the portion of tub on which said support element is mounted, preferably said respective stem.
  • the invention refers to a household appliance adapted to perform at least a drying cycle, said appliance comprising:
  • said drying system comprises at least a blowing unit, adapted to promote a flow of air in said drying system, said engaging portions being formed at said blowing unit.
  • said drying system further comprises a condenser adapted to receive a flow of wet air from said tub and to make it condense and obtain dried air.
  • said appliance further comprises a connection conduit adapted to guide the flow of dried air to said tub, said blowing unit being interposed between said condenser and said connection conduit.
  • said blowing unit comprises:
  • said engaging portion is part of a perimetral flange of said casing.
  • 1 indicates a household appliance adapted to perform at least a drying cycle.
  • the appliance 1 can be a drying machine, adapted to dry linen and/or clothes previously washed by a different machine.
  • the appliance 1 can also be a washer-drier, namely a machine capable of both washing and drying linen and/or clothes.
  • the appliance 1 is also adapted to perform at least a washing cycle.
  • the appliance 1 ( figure 1 ) comprises a drum 2 which can rotate and which is intended to house the items to be dried.
  • the appliance 1 comprises a tub 3, in which the drum 2 is rotatably mounted.
  • the appliance 1 comprises a drying system 10 which has an inlet 10a for receiving wet air from the tub 3 and an outlet 10b for providing dried air to be inserted back into the tub 3.
  • a drying system 10 which has an inlet 10a for receiving wet air from the tub 3 and an outlet 10b for providing dried air to be inserted back into the tub 3. This allows the air rich in moisture (following contact with the items to be dried contained in the drum 2 placed in the tub 3) to be taken and reintroduced into the same tub 3 after being dried and heated.
  • the appliance 1 further comprises a connection conduit 6 adapted to guide the flow of dried air from the outlet 10b of the drying system 10 to the tub 3.
  • connection conduit 6 is associated to an annular shaped gasket 7, arranged around the loading opening 7a of the tub 3 and provided with a passage to let the dried air reach the inside of the same tub 3.
  • connection conduit 6 is made of an elastomeric material, e.g. the same material as the annular gasket 7.
  • connection conduit 6 and the annular gasket 7 are made in one piece.
  • the drying system 10 comprises a condenser 4 that receives a gaseous fluid containing particles of vapor from said tub 3 and that causes at least partial condensation thereof.
  • a condenser 4 that receives a gaseous fluid containing particles of vapor from said tub 3 and that causes at least partial condensation thereof.
  • the inlet 10a of the drying system 10 coincides with the inlet of the condenser 4.
  • the operation of the condenser 4 are per se known and will not be disclosed in further detail.
  • the drying system 10 preferably comprises a filter (not shown), associated with the inlet of the condenser 4, so as to intercept fluff and avoid propagation thereof in the subsequent components of the drying system 10.
  • the drying system 10 comprises a blowing unit 5, arranged downstream of said condenser 4 according to the direction of the air, i.e. the air coming from the tub 3 flows through the condenser 4 first, and then it flows through the blowing unit 5.
  • the blowing unit 5 is interposed between the condenser 4 and the connection conduit 6.
  • the blowing unit 5 ( figures 1 , 2 , 4 ) comprises casing 51 and an impeller 59 rotatably mounted into said casing 51 so as to promote the flow of air.
  • the impeller 59 is preferably driven in rotation by a respective motor 52' ( figure 2 ).
  • the casing 51 comprises a scroll 511 which surrounds the impeller 59 and a conduit 512 which extends from said scroll 511.
  • the scroll 511 is interposed between the condenser 4 and the conduit 512.
  • the conduit 512 houses a heating element, e.g. an electrical element, for heating the air before it flows into said connection conduit 6 and is fed back into the tub 3.
  • blowing unit 5 is of the centrifugal type.
  • the casing 51 preferably comprises, and is in particular can be made of, a first semi-shell 52 and a second semi-shell 53.
  • the first semi-shell 52 defines an upper portion of the casing 51 whereas the second semi-shell 53 defines a lower portion of the same casing 51.
  • the semi-shells 52, 53 are made of metal, preferably of sheet metal.
  • the sheet metal of the first semi-shell 53 is preferably steel.
  • it is a type of steel for moulding.
  • the sheet metal can be aluminum- or zinc- coated or electro-galvanized.
  • the sheet metal may be aluminum.
  • the sheet metal of the first semi-shell 52 has a thickness of less than 1 millimeter, in particular less than 0.8 mm.
  • the reduced thickness of the sheet metal allows a light structure to be created but which can at the same time provide maximum resistance to strain.
  • first semi-shell 52 may also be employed for the second semi-shell 53.
  • the first and the second semi-shell 52, 53 are connected to each other by a seaming.
  • the seaming allows a fast and cheap connection to be obtained, potentially even without the need to use additional interposed gaskets (which would certainly be necessary if, for example, the two semi-shells were connected through threaded connections).
  • the casing 51 is provided with a perimetral flange 54, for example formed by said seaming.
  • the structure of the casing 51 according of the present invention can be the same as the casing disclosed in said European patent application, except for the engaging portions that will be disclosed in the following.
  • the drying system 10 is externally mounted on the tub 3.
  • the drying system 10 has one or more engaging portions 55 connected to the tub 3.
  • the drying system 10 is at least partly mounted on the tub 3 and supported through said engaging portion(s) 55.
  • the one or more engaging portions are part of the blowing unit 5, and in particular of the casing 51.
  • the engaging portions 55 are formed on the perimetral flange 54 of the casing 51.
  • each engaging portion 55 has a substantially flat shape.
  • each engaging portion 55 ( figure 9 ) has a cavity 55a, such as a hole, a slot, a groove, etc., which is used for connection with the tub 3, as will be disclosed in more detail hereinafter.
  • a cavity 55a such as a hole, a slot, a groove, etc., which is used for connection with the tub 3, as will be disclosed in more detail hereinafter.
  • one or more supporting elements 100 are provided in order to connect the drying system 10, and in particular the blowing unit 5, with the tub 3.
  • a plurality of support elements 100 is provided; in the example shown in the attached drawings, three support elements 100 are employed - one for each engaging portion 55. See, for example, figures 3 and 6 .
  • each support element will be disclosed in detail. The disclosure can be applied to each support element 100.
  • the support element is made of thermally insulating material, so as to thermally insulate the blowing unit 5 from the tub 3 and preventing the latter to be damaged by the heat emitted by the blowing unit 5.
  • the support element 100 ( figure 5 ) comprises a base portion 110 adapted to be fitted on the tub 3.
  • the base portion 110 of the support element 100 is adapted to be fitted on a respective stem 31 extending from the outer surface of the tub 3, preferably in a substantially vertical direction.
  • the base portion 110 has a shape that is substantially complementary to the shape of the respective stem 31.
  • the respective stem 31 can be provided with a plurality of grooves 31a-31d, delimited by a plurality of ribs 32a-32d ( figure 8a, 8b ).
  • the base portion 110 can thus comprise a plurality of legs 110a-110d adapted to be inserted in said grooves 31a-31d.
  • the grooves 31 a-31 d and legs 110a-110d are arranged in such a way as to define a unique connection shape between the base portion 110 and the respective stem 31.
  • Figure 8b schematically shows a cross-section view, according to a substantially horizontal plane, in which the stem 31, the ribs 32a-32d and the legs 110a-110d are shown.
  • figures 8a-8b are schematic views provided merely by way of example; in the preferred embodiment, the shape in plant view of the stem 31 is substantially circular, and the inner surface of the legs 110a-110d is suitably shaped so as to follow the curved profile of the outer surface of the stem 31.
  • the support element 100 further comprises a constraint portion 120 adapted to grasp an engaging portion 55 of the drying system 10.
  • the engagement portion 55 can be part of the blowing unit 5, and in particular of the casing 51.
  • the engaging portion 55 is part of the perimetral flange 54 of the casing 51.
  • constraint portion 120 comprises:
  • the upper part 121 and lower part 122 are mutually spaced apart to form a housing 130 for the engaging portion 55.
  • the constraint portion 120 further comprises a connection part 123 connecting the upper part 121 and lower part 122.
  • the upper part 121, lower part 122 and connection part 123 are made in one piece.
  • the base portion 110 extends downward from the lower part 122 of the constraint portion 120.
  • the base portion 110 and the constraint portion 120 are made in one piece.
  • the base portion 110 and constraint portion 120 can be made of a plastic material, such as polyamide reinforced with glass fibers.
  • the housing 130 formed by the upper part 121 and lower part 122 is a slot 130a wherein the engaging portion 55 is adapted to be inserted.
  • the engaging portion 55 has preferably a substantially flat shape, which can thus be suitably inserted in the slot 130a.
  • the slot 130a has a first section 131 substantially extending according to a first plane and a second section 132 substantially extending according to a second plane; the first plane has a different tilt than the second plane.
  • the first section 131 is the part of the slot 130a through which the engaging portion 55 passes when inserted in the slot 130a, then the engaging portion 55 reaches the second section 132.
  • the second plane is substantially horizontal.
  • the inclination of the first plane can be different in different supporting elements, in particular depending on the specific spot on the tub 3 at which each supporting element has to be mounted.
  • figure 6 shows three supporting elements 100 arranged in positions corresponding to actual spots on the external surface of the tub 3 (although the tub is not shown in figure 6 for the sake of simplicity), which are also visible in figures 2-3 .
  • the first section 131 is tilted downwards moving away from the second section 132, whereas in the supporting element 100 denoted with “LOW” the first section 131 is tilted upwards moving away from the second section 132.
  • the plane according to which the blowing unit 5 mainly extends is not horizontally arranged, but is tilted relative to a horizontal plane.
  • the supporting elements 100 denoted with "HIGH” are mounted in a higher position than the supporting element 100 denoted with "LOW".
  • one or more supporting elements 100 are located in respective recessed formed in the counterweight 8 mounted next to the blowing unit 5 ( figures 2 , 3 ).
  • the upper part 121 of the supporting element 100 is provided with a protrusion 121a substantially extending inside the housing 130.
  • the protrusion 121 is adapted to be inserted in a corresponding cavity 55a provided in the engaging portion 55.
  • the shape of the cavity 55a can be substantially complementary to the shape of the protrusion 121a.
  • the protrusion 121a can have a substantially parallelepiped shape, and the cavity 55a can have a substantially rectangular cross section.
  • the engagement between the protrusion 121a and the cavity 55a prevents longitudinal displacements of the engaging portion 55, i.e. of the blowing unit 5.
  • displacements are prevented in a direction substantially transverse relative to a direction according to which the engaging portion 55 is inserted in / removed from the housing 130.
  • displacements of the engaging portion 55 are prevented in a direction substantially parallel to the direction of the air flow in the drying system 100, in particular parallel to the direction of the air flow in the conduit 512 of the blowing unit 5.
  • the lower part 122 of the constraint portion 120 is provided with a support block 122a.
  • the portion of the casing 51 immediately under the engaging portion 55 can lean against the support block 122a, in particular against the upper surface of the support block 122a.
  • the support element 100 has a dual function: it both supports at least a part of the drying system 10, in particular the casing 51 of the blowing unit 5, and it provides thermal insulation between the tub 3 and the relevant part of the drying system 10 (the casing 51 of the blowing unit 5).
  • the support element/s 100 is/are so dimensioned as to avoid contact between the casing 51 and the tub 3; in other terms, the support element/s 100 keeps/keep the casing 51 at a determined distance from the outer surface of the tub 3, in order to minimize heat transfer from the casing 51 to the tub 3.
  • the support element 100 comprises fixing means 140 ( figure 7 ) adapted to fix, preferably to crimp, the engaging portion 55 into the housing 130.
  • the fixing means 140 operates so as to bring and keep the upper part 121 and the lower part 122 close to each other. Accordingly, the engaging portion 55 is constrained between the upper part 121 and the lower part 122, i.e. in the housing 130.
  • the fixing means 140 preferably comprises:
  • the fixing element 143 operates as disclosed hereabove, in order to make the upper part 121 and lower part 122 crimp the engaging portion 55.
  • the first hole 141 and the second hole 142 are threaded through holes.
  • the fixing element 143 is a screw, adapted to be screwed into said threaded through holes.
  • the fixing means 140 is also adapted to fix the support element 100 to the tub 3, in particular to the respective stem 31.
  • the fixing element 143 is adapted to engage the portion of tub 3 on which the support element 100 is mounted, namely the respective stem 31.
  • the top of the stem 31 can be provided with a threaded hole, into which the fixing element 143 can be screwed in order to complete the mounting of the blowing unit 5 on the tub 3.
  • the drying system 10 is operated so as to withdraw wet air from the tub 3 through inlet 10a and provide dried hot air at the outlet 10b.
  • the wet air flowing through the inlet 10a is first condensed by condenser 4; then the air passes through the blowing unit 5: the impeller 59 first, and then the conduit 512. In the conduit 512 the air is also heated. The dried and heated air is then fed back into the tub 3 through the connection conduit 6.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP15192264.8A 2015-10-30 2015-10-30 Trägerelement zur verbindung eines trocknungssystems eines zur durchführung von mindestens einem trocknungszyklus angepassten haushaltsgeräts, und haushaltsgerät mit besagtem trägerelement Active EP3162949B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15192264.8A EP3162949B1 (de) 2015-10-30 2015-10-30 Trägerelement zur verbindung eines trocknungssystems eines zur durchführung von mindestens einem trocknungszyklus angepassten haushaltsgeräts, und haushaltsgerät mit besagtem trägerelement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15192264.8A EP3162949B1 (de) 2015-10-30 2015-10-30 Trägerelement zur verbindung eines trocknungssystems eines zur durchführung von mindestens einem trocknungszyklus angepassten haushaltsgeräts, und haushaltsgerät mit besagtem trägerelement

Publications (2)

Publication Number Publication Date
EP3162949A1 true EP3162949A1 (de) 2017-05-03
EP3162949B1 EP3162949B1 (de) 2018-05-02

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EP15192264.8A Active EP3162949B1 (de) 2015-10-30 2015-10-30 Trägerelement zur verbindung eines trocknungssystems eines zur durchführung von mindestens einem trocknungszyklus angepassten haushaltsgeräts, und haushaltsgerät mit besagtem trägerelement

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050138973A1 (en) * 2003-12-18 2005-06-30 Lg Electronics Inc. Washing machine with drying function
DE102005018045A1 (de) * 2004-04-19 2005-11-17 Lg Electronics Inc. Befestigungsstruktur für einen Hitzeschild einer Trommelwaschmaschine mit Wäschetrocknungsfunktion
US20050278971A1 (en) * 2004-06-16 2005-12-22 Samsung Electronics Co., Ltd. Clothing dryer
EP2597185A1 (de) * 2011-11-23 2013-05-29 Electrolux Home Products Corporation N.V. Waschmaschine und Trockner mit verbessertem Isolierelement zwischen Wanne und Heißluftleitung
US20140047869A1 (en) * 2012-08-16 2014-02-20 Samsung Electronics Co., Ltd. Drum washing machine
EP2725131A1 (de) 2012-10-23 2014-04-30 Indesit Company S.p.A. Trockner mit Gebläsevorrichtung
EP2886708A1 (de) * 2013-12-20 2015-06-24 BSH Electrodomésticos España, S.A. Waschtrockner

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050138973A1 (en) * 2003-12-18 2005-06-30 Lg Electronics Inc. Washing machine with drying function
DE102005018045A1 (de) * 2004-04-19 2005-11-17 Lg Electronics Inc. Befestigungsstruktur für einen Hitzeschild einer Trommelwaschmaschine mit Wäschetrocknungsfunktion
US20050278971A1 (en) * 2004-06-16 2005-12-22 Samsung Electronics Co., Ltd. Clothing dryer
EP2597185A1 (de) * 2011-11-23 2013-05-29 Electrolux Home Products Corporation N.V. Waschmaschine und Trockner mit verbessertem Isolierelement zwischen Wanne und Heißluftleitung
US20140047869A1 (en) * 2012-08-16 2014-02-20 Samsung Electronics Co., Ltd. Drum washing machine
EP2725131A1 (de) 2012-10-23 2014-04-30 Indesit Company S.p.A. Trockner mit Gebläsevorrichtung
EP2886708A1 (de) * 2013-12-20 2015-06-24 BSH Electrodomésticos España, S.A. Waschtrockner

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