EP1070922A2 - Appareil de chauffage avec régulation de température de lessive - Google Patents

Appareil de chauffage avec régulation de température de lessive Download PDF

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Publication number
EP1070922A2
EP1070922A2 EP00114778A EP00114778A EP1070922A2 EP 1070922 A2 EP1070922 A2 EP 1070922A2 EP 00114778 A EP00114778 A EP 00114778A EP 00114778 A EP00114778 A EP 00114778A EP 1070922 A2 EP1070922 A2 EP 1070922A2
Authority
EP
European Patent Office
Prior art keywords
heating
heating element
monitoring
heat
heating device
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.)
Withdrawn
Application number
EP00114778A
Other languages
German (de)
English (en)
Other versions
EP1070922A3 (fr
Inventor
Gerold Zinner
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.)
Bleckmann GmbH and Co KG
Original Assignee
Bleckmann GmbH
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 Bleckmann GmbH filed Critical Bleckmann GmbH
Publication of EP1070922A2 publication Critical patent/EP1070922A2/fr
Publication of EP1070922A3 publication Critical patent/EP1070922A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • 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

Definitions

  • the invention relates to a heating device for fluids and a method Control of such a heating device according to the preambles of the claims 1 and 19.
  • Such heating devices are used, for example, for dishwashers, Kettles etc. used.
  • the fluid to be heated is by a Fluid guide pipe guided (e.g. in a dishwasher) or in one Filled the container (e.g. with a kettle), on the outside of the Fluid guide tube or the fluid container at least one heating element, if necessary Interposition of a heat distribution element is arranged.
  • a Fluid guide pipe guided e.g. in a dishwasher
  • Filled the container e.g. with a kettle
  • the temperature of the fluid and the temperature of the heating element is monitored.
  • one or more thermostats provided that are attached to the tub of the dishwasher.
  • the one for this Necessary assembly work is relatively complex, which makes it the Influence the price of the finished device significantly.
  • the present Invention for the heating element and / or the fluid common monitoring element available. That depends on the temperature curve in the heating element and / or the heat transfer element over time changing output signal is delivered to the control device based on this output signal controls the energy supply to the heating element.
  • a particularly inexpensive construction of the overall device can be achieved in of the heating device according to the invention is used, since, for example, at a dishwasher necessary openings in the tub and the associated sealing problems no longer exist.
  • the monitoring element can only be used be connected to the heating element. Because the temperature curve for the to be heated Fluid runs parallel to the temperature development of the heating element can in Normally by detecting the temperature of the heating element on the Temperature of the fluid can be inferred and thus on the control control of the temperature of the fluid can be influenced. At the same time is ensured by monitoring the temperature of the heating element that in the event of a deviation from predefined criteria, the energy supply to the Heating element is switched off, for example in the event of heating without Avoid fluids (drying cycle).
  • the monitoring element with the heating element and the heat transfer element is connected at the same time.
  • the temperature of the fluid can be detected when the heating element is switched off. If this fluid temperature drops below a certain limit, the heating element is switched on again and the fluid is heated again.
  • the control device at least one memory for storing different operating situations the slope dimensions characterizing the heating device and an average for comparing the stored pitch with that from the output signal the pitch determined by the monitoring device.
  • the one in the store stored pitch measurements which are also referred to as the desired pitch measure can, continuously and then continuously, for example as digitized Graphene or discontinuous, i.e. be saved for certain times.
  • the gradient measure of the fluid output from the monitoring element Output signal (actual pitch), which in turn depends on the Temperature profile in the heating element and / or the fluid changed, determined and be used as the basis for the control or regulation.
  • This Gradient can be measured with gradients stored in the control device, the specific operating situations of the heating device according to the invention equipped equipment and that in advance by way of example Experiments have been determined to be compared. You can either do that Slope measure at a certain point in time with a corresponding, stored slope measure can be compared at this time or the development of the pitch measure within a period of time. In both cases the solution according to the invention is capable of deviations from the stored slope dimensions corresponding to certain operating situations determine and take corrective action.
  • a wide variety of components or assemblies can be used as a monitoring element Find use. It is particularly advantageous if the monitoring element is an NTC element or a PTC element.
  • the solution according to the invention can be used in a wide variety of devices and devices be used.
  • the heat transfer element a fluid guide tube or one pushed onto a fluid guide tube and with this heat distribution element in good thermal contact be heat-conducting material, in both cases the heating element and the Monitoring element on the outer peripheral surfaces of the fluid guide tube or of the heat distribution element are arranged.
  • This embodiment can be for example in the case of instantaneous water heaters in dishwashers.
  • the heat transfer element is the fluid is receiving and storing container, here also on the outside if necessary with the interposition of a heat distribution element, the heating element and the monitoring element are attached.
  • the heating element is a thick-film element on one side the monitoring element, possibly with the interposition of an insulating layer is arranged.
  • the monitoring element can directly with the heating element be thermally connected, i.e. the monitoring element is in the immediate vicinity Contact with the heating element.
  • the Monitoring element is indirectly connected to the heating element in a thermally conductive manner. In this case there is a heat conducting element between the monitoring element and provided the heating element.
  • an overload protection device can also be provided, which Switching off the heating element during, for example, a drying cycle.
  • Such Overload protection can be formed, for example, by a fuse.
  • a controller is provided as a supplementary control element.
  • a partial longitudinal section of a water heater 10 can be seen, the can be used for example in a dishwasher.
  • the instantaneous water heater 10 initially has, as main assemblies, a fluid guide tube 20 made of a poorly heat-conducting material, for example stainless steel, and at least a heating element 30, for example a tubular heater.
  • the fluid guide tube 20 having a circular cross section is on its outside with a heat distribution element 40 in the form of a tube or two Half shells or a slotted tube with a substantially circular shape Provide cross-section, the inside diameter of which is at least approximately that Outer diameter of the fluid guide tube 20 corresponds.
  • the heat distribution element 40 is made of a good heat-conducting material, for example Made of aluminum or copper.
  • solder can be between the fluid guide tube 20 and the heat distribution element or heat distribution tube 40, in particular the Fill the entire space between the two pipes 20, 40.
  • the heating element is on the outer peripheral surface of the heat distribution element 40 30 wound helically, with two ends of the not shown Heating element 30 are connected to an energy source, which in the case of a electric tubular heater can be a power source.
  • the heating element 30 has, as is apparent from Figure 1, a semicircular or semi-oval or trapezoidal cross-section, the flat side of this cross-section on the Outer peripheral side of the heat distribution element 40 is arranged.
  • the heating element 30 can only by means of the helical winding resulting voltage on the heat distribution element or pipe 40 can be kept or soldered to it, in particular soldered in a heat-conducting manner.
  • heating elements 30 may also be provided on the heat distribution element 40 can, for example, to obtain a switchable heating device.
  • the axial length of the heat distribution pipe 40 corresponds to the axial length of the or Heating elements 30 and a protruding at least at one end Section on which one described in more detail below Monitoring element 50 and possibly other fuse and / or control elements 60 are arranged.
  • the monitoring element 50 mentioned above is an NTC element that is based on the portion of the protruding beyond the axial length of the heating element 30
  • Heat distribution pipe 40 is arranged at a distance from the heating element 30. It is in heat conduction contact with both the heat distribution pipe 40 Heating element 30 as well as with the fluid guide tube 20 and thus with the heating fluid.
  • the signal output from the monitoring element 50 becomes via line connections, not shown, to one also not further shown control device delivered.
  • the control device determines from the changing course of the output signal of the monitoring element over time 50 continuously or at certain points in time the gradient of this Course. This actual gradient is already there in the control device
  • the predetermined incline dimensions saved in advance, the special operating situations mark the device provided with the heating device according to the invention or play, continuously or compared at certain times.
  • Fuse and / or control elements 60 may be provided, such as is shown in Figure 1, next to the monitoring element 50 on the outer peripheral surface of the heat distribution pipe 40 are arranged. But there is also Possibility that the fuse element or control element 60 in the Connection ends of the heating element 30 is arranged.
  • the additional intended Element 60 can serve, for example, the heating element 30 in the case to be able to switch off a drying cycle even when the control device and / or the monitoring element 50 fail.
  • FIG. 2 also shows the second embodiment of the solution according to the invention shown using a water heater 10 '.
  • This embodiment differs differs from the embodiment shown in FIG. 1 in that no Heat distribution element 40 is provided.
  • the heating element 30 sits directly on the outer peripheral surface of the fluid guide tube 20. Since the fluid guide tube 20 is made of poorly heat-conducting material, is also a heat-conducting element 70 provided that the heat generated by the heating element 30 to the leads spaced to the heating element 30 provided monitoring element 50.
  • This heat distribution element 70 can be made of a good heat-conducting material be made and have, for example, the shape of a strip.
  • FIG 2 a further embodiment is shown, which with broken lines is executed.
  • it is Monitoring element 50 and any additional security or Control element 60 not on the outer circumferential surface of the fluid guide tube 20 or arranged on a heat distribution element 40 provided there but directly if necessary with the interposition of a thermally conductive mounting element the outside of the heating element 30.
  • the heat of the fluid indirectly detected due to the fact that the course of the Temperature in the fluid parallel to the course of the temperature of the heating element 30 follows. So that from the detected temperature of the heating element 30 to the Temperature of the fluid in the fluid guide tube 20 are closed.
  • the third embodiment of the present invention shown in FIG. 3 relates again a water heater 10 '', but in contrast to the two previous embodiments shown in Figures 1 and 2, the heating element 30 is formed by a thick-film heating element 30 ′′. Between the outer peripheral surface of the fluid guide tube 20 and at least the monitoring element 50 and any additional safety or control element that may be present 60, an insulating layer 80 is also provided.
  • FIGS Present invention shown, in which the to the embodiments of Figures 1 to 3 identical components with the same reference numerals, but increased are designated by 100. Functionally identical components are also the same Reference numerals, however increased by 100 and additionally by "'" or "' '" characterized.

Landscapes

  • Control Of Resistance Heating (AREA)
  • Resistance Heating (AREA)
  • Control Of Temperature (AREA)
EP00114778A 1999-07-21 2000-07-10 Appareil de chauffage avec régulation de température de lessive Withdrawn EP1070922A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19934319A DE19934319A1 (de) 1999-07-21 1999-07-21 Heizvorrichtung mit Laugentemperaturregelung
DE19934319 1999-07-21

Publications (2)

Publication Number Publication Date
EP1070922A2 true EP1070922A2 (fr) 2001-01-24
EP1070922A3 EP1070922A3 (fr) 2003-05-07

Family

ID=7915622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00114778A Withdrawn EP1070922A3 (fr) 1999-07-21 2000-07-10 Appareil de chauffage avec régulation de température de lessive

Country Status (2)

Country Link
EP (1) EP1070922A3 (fr)
DE (1) DE19934319A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8358922B2 (en) 2003-12-04 2013-01-22 Bsh Bosch Und Siemens Hausgeraete Gmbh Fluid heating device, continuous flow heater, and method for the production thereof
EP2775025A1 (fr) * 2013-03-05 2014-09-10 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Dispositif de lavage

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10248538A1 (de) * 2002-10-17 2004-04-29 Aweco Appliance Systems Gmbh & Co. Kg Verfahren zur Wasserverschmutzungserkennung
DE10356788A1 (de) * 2003-12-04 2005-07-07 BSH Bosch und Siemens Hausgeräte GmbH Sicherungsvorrichtung für eine Heizvorrichtung, Heizvorrichtung und Durchlauferhitzer
DE102006012476A1 (de) 2006-03-16 2007-09-20 Robert Bosch Gmbh Verfahren zum Betreiben eines Sensors
DE102008013515A1 (de) 2008-03-07 2009-09-10 Volkswagen Ag Verfahren zum Betreiben einer Lambdasonde während der Aufwärmphase
DE102010050007A1 (de) * 2010-11-02 2012-05-03 Böhm GmbH & Co. KG Beheizungssteuerung
CN113433985A (zh) * 2021-06-28 2021-09-24 中国船舶工业集团公司第七0八研究所 一种船用碱液储存舱温度控制系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3120600A (en) * 1962-07-02 1964-02-04 Cecil W True Freezeless water supply
EP0299343A1 (fr) * 1987-07-07 1989-01-18 I.R.C.A. S.p.a. Industria Resistenze Corazzate e Affini Elément de chauffage pour appareils électriques domestiques
DE4011284A1 (de) * 1990-04-06 1991-10-10 Krups Fa Robert Elektrischer eierkocher
US5442157A (en) * 1992-11-06 1995-08-15 Water Heater Innovations, Inc. Electronic temperature controller for water heaters
US5724478A (en) * 1996-05-14 1998-03-03 Truheat Corporation Liquid heater assembly
DE19740169A1 (de) * 1997-09-12 1999-04-01 Grandi Angelo Cucine Spa Verfahren und Vorrichtung zur Kontrolle der Temperaturregelung beheizbarer Vorrichtungen
DE19859014A1 (de) * 1998-01-09 1999-07-15 Danfoss As Ölvorwärmer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD206726A3 (de) * 1981-09-23 1984-02-01 Waschgeraetewerk Veb Einrichtung zum thermischen schutz von heizelementen
DE4420493A1 (de) * 1994-06-12 1995-12-14 Ego Elektro Blanc & Fischer Elektronisches Durchflußheizelement für Medien
AUPN560795A0 (en) * 1995-09-25 1995-10-19 Stokes (Australasia) Limited Heating element assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3120600A (en) * 1962-07-02 1964-02-04 Cecil W True Freezeless water supply
EP0299343A1 (fr) * 1987-07-07 1989-01-18 I.R.C.A. S.p.a. Industria Resistenze Corazzate e Affini Elément de chauffage pour appareils électriques domestiques
DE4011284A1 (de) * 1990-04-06 1991-10-10 Krups Fa Robert Elektrischer eierkocher
US5442157A (en) * 1992-11-06 1995-08-15 Water Heater Innovations, Inc. Electronic temperature controller for water heaters
US5724478A (en) * 1996-05-14 1998-03-03 Truheat Corporation Liquid heater assembly
DE19740169A1 (de) * 1997-09-12 1999-04-01 Grandi Angelo Cucine Spa Verfahren und Vorrichtung zur Kontrolle der Temperaturregelung beheizbarer Vorrichtungen
DE19859014A1 (de) * 1998-01-09 1999-07-15 Danfoss As Ölvorwärmer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8358922B2 (en) 2003-12-04 2013-01-22 Bsh Bosch Und Siemens Hausgeraete Gmbh Fluid heating device, continuous flow heater, and method for the production thereof
EP2775025A1 (fr) * 2013-03-05 2014-09-10 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Dispositif de lavage

Also Published As

Publication number Publication date
DE19934319A1 (de) 2001-02-08
EP1070922A3 (fr) 2003-05-07

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