EP2443982B1 - Appareil ménager doté d'un chauffe-eau instantané - Google Patents

Appareil ménager doté d'un chauffe-eau instantané Download PDF

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Publication number
EP2443982B1
EP2443982B1 EP12000526.9A EP12000526A EP2443982B1 EP 2443982 B1 EP2443982 B1 EP 2443982B1 EP 12000526 A EP12000526 A EP 12000526A EP 2443982 B1 EP2443982 B1 EP 2443982B1
Authority
EP
European Patent Office
Prior art keywords
heater
wall
section
heating
home appliance
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.)
Active
Application number
EP12000526.9A
Other languages
German (de)
English (en)
Other versions
EP2443982A2 (fr
EP2443982A3 (fr
Inventor
Albert Johann Loichinger
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.)
V-Zug AG
Original Assignee
V-Zug AG
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 V-Zug AG filed Critical V-Zug AG
Priority to EP12000526.9A priority Critical patent/EP2443982B1/fr
Priority to SI201231836T priority patent/SI2443982T1/sl
Publication of EP2443982A2 publication Critical patent/EP2443982A2/fr
Publication of EP2443982A3 publication Critical patent/EP2443982A3/fr
Application granted granted Critical
Publication of EP2443982B1 publication Critical patent/EP2443982B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4285—Water-heater arrangements
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
    • F24H1/102—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/142—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using electric energy supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818—Arrangement or mounting of electric heating means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2301/00—Manual input in controlling methods of washing or rinsing machines for crockery or tableware, i.e. information entered by a user
    • A47L2301/04—Operation mode, e.g. delicate washing, economy washing, reduced time, sterilizing, water softener regenerating, odor eliminating or service
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/06—Water heaters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/021—Heaters specially adapted for heating liquids

Definitions

  • the invention relates to a household appliance with a line system for process water and a flow heater arranged in the line system.
  • the instantaneous water heater has a pipe section which encloses an interior in which process water is guided. Furthermore, the instantaneous water heater has a wall heater arranged on or in a wall of the pipe section.
  • the invention also relates to a correspondingly designed instantaneous water heater.
  • Water heaters of this type in which a heater is arranged on the wall of a pipe section, are known.
  • the heat output which can be transferred to the process water with such a water heater, is limited by the length of the pipe section.
  • a long pipe section is required for a high heating output, which leads to space problems or complicated, sinuous geometries.
  • EP 2253899 describes a two-sided instantaneous water heater which has an inner tubular heater and an outer tube with radiators.
  • a water heater according to the preamble of claim 1 is from EP 0 075 274 A1 known.
  • the instantaneous water heater has a pipe section.
  • the pipe section laterally encloses an interior in which the process water is guided.
  • a wall heater is arranged in or on the wall of the pipe section, with which the process water in the interior can be heated.
  • an interior heater with a spacer to the wall is provided in the interior. The interior water can also be heated with this.
  • the pipe section has a curved and a straight section.
  • the interior heater is anchored in the curved section and protrudes into the straight section. In this way, one end of the interior heater can be attached.
  • the internal heater can also be connected to an electrical feedthrough which extends through the wall of the curved section, so that it can be supplied with current.
  • the internal heater advantageously has a U-shaped heating element, which has two straight legs and one has curved connector.
  • a coiled version is also conceivable, ie the interior heating has at least one helical section in the interior. The two legs are anchored in the region of the curved section of the pipe section. In this way, a standard component can be used.
  • the invention is particularly suitable for use in dishwashers or washing machines.
  • Fig. 1 the most important components of a dishwasher are shown in the present context.
  • the device has a tub 1 for receiving the dishes in dish racks (not shown).
  • a circulation pump 2 is used to convey process water from a sump 3 of the tub 1 via a first circulation line 4, a valve arrangement 5 and further lines 6, 7, 7a to spraying agents 8, 9, 9a, so that the dishes in the tub 1 are filled with process water to act upon.
  • the device has a drain pump 10 to convey process water that is no longer required from the device.
  • Other parts of the system which in Fig. 1 Not shown, but are known to the person skilled in the art, include, for example, a fresh water supply, a water softening device, etc.
  • the device has a controller 12 which controls the components of the device in accordance with program specifications which the user inputs via an input and output 13.
  • a continuous-flow heater 14 is provided in the line system, in particular in the part which serves to circulate the process water in the device. This can e.g. be arranged before or after the circulation pump 2.
  • a particularly advantageous embodiment of the instantaneous water heater is shown in Figs. 2-4 illustrated. It forms a pipe section 15 of the line system, which has a curved section 16 and a straight section 17.
  • the pipe section laterally encloses an interior 18, which receives the process water.
  • the process water preferably first enters the curved section 16 and then flows from there into the straight section 17.
  • the instantaneous water heater has two heaters, namely a wall heater 20 and an interior heater 21.
  • the wall heater 20 is arranged in the straight section 17. It extends around the pipe section 17, ie it surrounds it so that it can heat it from all sides. In execution after Figs. 2-4 it is arranged on the wall 22 of the pipe section, specifically from the outside. It can also be integrated in the wall 22 or arranged on the wall 22 from the inside.
  • the wall heater is formed, for example, by a soldered heating element or by a thick film heater.
  • the wall heating is limited to the straight section 17 and does not extend into the curved portion 16, which simplifies the design and manufacture.
  • the wall heater 20 is arranged coaxially to the longitudinal axis 19.
  • the internal heater 21 is arranged in the interior 18 of the instantaneous water heater 14. In order to avoid local overheating and to reduce the risk of blockages (due to foreign substances or deposits), it is arranged at a distance from the wall 22 of the straight section 17, so that e.g. a free flow is still possible even if limescale deposits with a thickness of a few millimeters are formed.
  • a spacer 24 is provided in order to position the inner heater 21 in the pipe section. This has the form of one or more struts which extend from the inner heater 21 to the wall 22.
  • the spacer (24) is designed in such a way that it has a small flow resistance and, if possible, does not offer any attachment points for the connection of contaminants.
  • the inner heater 21 is arranged approximately centrally in the straight pipe section 17 and runs parallel to its longitudinal axis 19.
  • the inner heater 21 has a U-shaped heating element with two straight legs 25 which are connected to one another via a curved connecting piece 26.
  • the legs 25 are anchored in the region of the curved pipe section 16 and run parallel to the longitudinal axis 19.
  • the straight legs have a smooth surface in order to have little resistance and to be less susceptible to limescale or dirt deposits.
  • the head of the internal heater with the connecting piece 26 is located in the straight section 17.
  • the inner heater 21 is in the area of its anchoring with a curved through the wall Section 16 extending electrical feedthrough 27 connected, which ends in external contacts 28.
  • the function of the interior heater 21 and the wall heater 20 is controlled by the controller 12, i.e. the controller 12 can switch the two heaters on and off individually.
  • the controller 12 can e.g. operate the inner heater 21 and the wall heater 20 in parallel in order to achieve a particularly high heating output. However, it can also only activate the internal heating and / or the wall heating, or switch off both heating systems. A series connection of both heaters can also be used to achieve reduced heating output with simple switches.
  • the wall heater 20 preferably has a greater output than the inner heater 21, since it has a larger surface.
  • the outer heater 20 can have a power of approximately 2 kW
  • the inner heater 21 can have a power of approximately 1 kW.
  • the pipe section 15 is preferably made of metal, in particular stainless steel.
  • the instantaneous water heater shown can be modified in many different ways.
  • the interior heater 21 has in the execution Figs. 2-4 a U-shaped heating element. However, it can also be formed, for example, by a straight heating element running parallel to the longitudinal axis.
  • the curved section 16 according to Figs. 2-4 describes an angle of approx. 90 °. However, the angle can also be below or above this value. Furthermore, the curved section 16 runs in a curve, which reduces the risk of blockages. in principle, however, an angular, non-rounded design is also conceivable.
  • the curved section 16 can also be dispensed with entirely. In this case, however, the interior heating must have a radial passage.
  • the use of the curved section 16 has the advantage that an elongated, easier to manufacture or even commercially available heater can be used as the interior heater 21.
  • Another advantage is that the fire protection concept for the internal heating can be made significantly simpler, since the surrounding component is made of non-combustible material.
  • This instantaneous water heater achieves a high thermal output with simple, commercially available components and with a small installation space. Proven components that are not critical with regard to calcification can be used.
  • the same instantaneous water heater can also be supplied with the wall heater 20 or only with the interior heater 21 for lower outputs. This means that this system can also be installed as an additional heater for household appliances with alternative heating (heat pumps).
  • the instantaneous water heater is basically suitable for a wide variety of household appliances, but can be used with particular advantage in dishwashers and washing machines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Resistance Heating (AREA)

Claims (13)

  1. Appareil ménager avec
    un système d'acheminement (4 - 9) pour de l'eau de traitement,
    un chauffe-eau instantané (14) disposé dans le système d'acheminement (4 - 9),
    dans lequel le chauffe-eau instantané (14) présente une section tubulaire (15), dans lequel la section tubulaire (15) entoure un espace intérieur (18), dans lequel de l'eau de traitement est guidée,
    dans lequel un chauffage intérieur (21) est disposé dans l'espace intérieur (18) à distance d'une paroi (22) de la section tubulaire (15),
    dans lequel la section tubulaire (15) présente une section incurvée (16) et une section rectiligne (17), et
    dans lequel le chauffage intérieur (21) est ancré dans la section incurvée (16) et dépasse à l'intérieur de la section rectiligne (17),
    caractérisé en ce qu'
    un chauffage mural (20) est disposé au niveau de ou dans la paroi (22) de la section tubulaire (15) en supplément du chauffage intérieur (21), et qu'un écarteur (24) est prévu entre le chauffage intérieur (21) et la paroi (22).
  2. Appareil ménager selon la revendication 1, dans lequel le chauffage intérieur (21) est relié à un passage (27) électrique s'étendant à travers une paroi (22) de la section incurvée (16).
  3. Appareil ménager selon l'une quelconque des revendications 1 ou 2,
    dans lequel le chauffage intérieur (21) est formé dans l'espace intérieur (18) par un barreau chauffant s'étendant de manière rectiligne.
  4. Appareil ménager selon l'une quelconque des revendications 1 ou 2,
    dans lequel le chauffage intérieur (21) présente dans l'espace intérieur (18) un barreau chauffant en forme de U, lequel présente deux branches (25) rectilignes et une pièce de liaison (26) incurvée, dans lequel les branches (25) sont ancrées dans la zone de la section incurvée (16) de la section tubulaire (15).
  5. Appareil ménager selon l'une quelconque des revendications 1 ou 2,
    dans lequel le chauffage intérieur (21) présente dans l'espace intérieur (18) au moins une section hélicoïdale.
  6. Appareil ménager selon l'une quelconque des revendications 1 à 5,
    dans lequel le chauffage mural (20) est disposé dans la section rectiligne (17).
  7. Appareil ménager selon la revendication 6, dans lequel le chauffage mural (20) ne s'étend pas dans la section incurvée (16).
  8. Appareil ménager selon l'une quelconque des revendications 1 à 7,
    dans lequel le chauffage mural est disposé de manière coaxiale par rapport à un axe longitudinal (19) de la section rectiligne.
  9. Appareil ménager selon l'une quelconque des revendications 1 à 8,
    dans lequel le chauffage intérieur (21) est disposé de manière parallèle par rapport à un axe longitudinal (19) de la section rectiligne (17).
  10. Appareil ménager selon l'une quelconque des revendications précédentes, dans lequel la section tubulaire (15) est en métal, en particulier en acier.
  11. Appareil ménager selon l'une quelconque des revendications précédentes, avec une commande (12), laquelle est configurée pour faire fonctionner en fonction d'un processus donné le chauffage intérieur (21) et le chauffage mural (20) simultanément ou seulement le chauffage intérieur (21) et/ou seulement le chauffage mural (20) et/ou pour faire fonctionner le chauffage intérieur (21) et le chauffage mural (20) en parallèle et/ou en série.
  12. Appareil ménager selon l'une quelconque des revendications précédentes, dans lequel le chauffage mural (20) entoure la section tubulaire (15).
  13. Chauffe-eau instantané pour un appareil ménager avec une section tubulaire (15),
    un espace intérieur (18) entouré par la section tubulaire (15), pour guider de l'eau de traitement, ainsi
    qu'un chauffage intérieur (21) disposé dans l'espace intérieur (18) à distance d'une paroi (22) de la section tubulaire (15),
    dans lequel la section tubulaire (15) présente une section incurvée (16) et une section rectiligne (17), et
    dans lequel le chauffage intérieur (21) est ancré dans la section incurvée (16) et dépasse à l'intérieur de la section rectiligne (17),
    caractérisé en ce qu'un chauffage mural (20) est disposé au niveau de ou dans la paroi (22) de la section tubulaire (15) en plus du chauffage intérieur (21) et qu'un écarteur (24) est prévu entre le chauffage intérieur (21) et la paroi (22).
EP12000526.9A 2012-01-27 2012-01-27 Appareil ménager doté d'un chauffe-eau instantané Active EP2443982B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12000526.9A EP2443982B1 (fr) 2012-01-27 2012-01-27 Appareil ménager doté d'un chauffe-eau instantané
SI201231836T SI2443982T1 (sl) 2012-01-27 2012-01-27 Gospodinjska naprava s pretočnim grelnikom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12000526.9A EP2443982B1 (fr) 2012-01-27 2012-01-27 Appareil ménager doté d'un chauffe-eau instantané

Publications (3)

Publication Number Publication Date
EP2443982A2 EP2443982A2 (fr) 2012-04-25
EP2443982A3 EP2443982A3 (fr) 2012-08-22
EP2443982B1 true EP2443982B1 (fr) 2020-06-24

Family

ID=45560679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12000526.9A Active EP2443982B1 (fr) 2012-01-27 2012-01-27 Appareil ménager doté d'un chauffe-eau instantané

Country Status (2)

Country Link
EP (1) EP2443982B1 (fr)
SI (1) SI2443982T1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140112650A1 (en) * 2012-10-19 2014-04-24 Edwards Vacuum, Inc. Cartridge heater apparatus
EP2775025A1 (fr) * 2013-03-05 2014-09-10 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Dispositif de lavage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4326552A (en) * 1979-01-23 1982-04-27 Ingo Bleckmann Heater for heating flows of fluid and dishwashing machine provided therewith
DE3138293A1 (de) * 1981-09-25 1983-07-14 Elpag AG Chur, 7001 Chur Durchlauferhitzer
DE9318498U1 (de) * 1993-12-03 1994-01-20 Stiebel Eltron Gmbh & Co Kg, 37603 Holzminden Heizeinsatz eines elektrischen Durchlauferhitzers
DE20321667U1 (de) * 2003-05-16 2008-10-09 Stiebel Eltron Gmbh & Co. Kg Flüssigkeitserhitzer
EP2253899A3 (fr) * 2009-05-15 2013-09-18 Alexander Kunz Chauffe-eau instantané à double face et chambre intermédiaire
DE202009007007U1 (de) * 2009-05-15 2009-08-06 Kunz, Alexander Zweiseitiger-Zwischenraumkammer-Durchlauferhitzer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
SI2443982T1 (sl) 2020-10-30
EP2443982A2 (fr) 2012-04-25
EP2443982A3 (fr) 2012-08-22

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