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EP2087162B1 - Heating apparatus having at least two thermoelectric modules which are connected in series - Google Patents

Heating apparatus having at least two thermoelectric modules which are connected in series Download PDF

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Publication number
EP2087162B1
EP2087162B1 EP07821679A EP07821679A EP2087162B1 EP 2087162 B1 EP2087162 B1 EP 2087162B1 EP 07821679 A EP07821679 A EP 07821679A EP 07821679 A EP07821679 A EP 07821679A EP 2087162 B1 EP2087162 B1 EP 2087162B1
Authority
EP
European Patent Office
Prior art keywords
heating device
circuit arrangement
modules
thermoelectric
switch
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.)
Not-in-force
Application number
EP07821679A
Other languages
German (de)
French (fr)
Other versions
EP2087162A1 (en
Inventor
Hasan Gökcer ALBAYRAK
Klaus Grunert
Reinhardt Ruhm
Edmund Seiffert
Günter Steffens
Andreas Stolze
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete 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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2087162A1 publication Critical patent/EP2087162A1/en
Application granted granted Critical
Publication of EP2087162B1 publication Critical patent/EP2087162B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications
    • 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
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/50—Responding to irregular working conditions, e.g. malfunctioning of blowers
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/28—Electric heating
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/206—Heat pump arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect

Definitions

  • the invention relates to a heating device with at least two series-connected thermoelectric modules.
  • thermoelectric modules can be arranged as a heating device, which are electrically interconnected in series. If one of these modules fails, the entire heater fails.
  • thermoelectric modules may be formed, for example, as Peltier elements, which are used in a Peltier heat pump of a clothes dryer.
  • a household appliance with an electronic control device which is switchable in the event of a defect of a functional component to a so-called emergency operation, is off DE 100 39 444 A1 known.
  • thermoelectric module It is an object of the present invention to provide a heater whose failure can be prevented when a thermoelectric module fails.
  • a heating device which has the features according to claim 1
  • a domestic appliance which has the features according to claim 7.
  • a heating device comprises at least two series-connected thermoelectric modules. At least one thermoelectric module, a circuit arrangement is connected in parallel, which is designed such that in the event of a fault of the thermoelectric module, electrical current flows through the circuit arrangement.
  • the further operation of the heating device can be ensured even if the thermoelectric module fails. Even with a failure of one or more thermoelectric modules of the heater can thereby the Power supply of the other series-connected thermoelectric modules are guaranteed and thus the operation of the heater can be maintained.
  • each thermoelectric module is connected in parallel with a separate circuit arrangement. Regardless of which or how many of the thermoelectric
  • a circuit arrangement preferably has only one electronic component.
  • the circuit arrangement can be made very simple and yet effective.
  • a component-minimized and therefore cost-minimal design can be ensured.
  • the circuit arrangement preferably comprises a resistor, in particular an NTC resistor. If a thermoelectric module fails, the electrical current could then flow through the NTC resistor to the next thermoelectric element. Although this would result in a slight reduction in performance of the device, but the basic function would continue to be guaranteed despite the defect of one or more of the modules.
  • a circuit arrangement has a switch.
  • the switch can be designed as a temperature switch or as a current-dependent switch.
  • a temperature switch can be achieved that closes in case of a possible defect of an associated thermoelectric module by the temperature reduction of this temperature switch and thus short-circuits the associated thermoelectric module. This also allows the current flow to the downstream thermoelectric module can be ensured and the functionality of the heater can be maintained.
  • thermoelectric module as a current-dependent switch is provided that this closes, if no current flows through the thermoelectric module.
  • the invention further relates to a domestic appliance for the care of items of laundry, in particular a clothes dryer or a washer-dryer, with a heating device according to the invention or an advantageous embodiment thereof.
  • a domestic appliance for the care of items of laundry, in particular a clothes dryer or a washer-dryer, with a heating device according to the invention or an advantageous embodiment thereof.
  • thermoelectric modules are designed as Peltier elements and assigned to a Peltier heat pump of the domestic appliance.
  • thermoelectric modules 2 and 3 are designated by way of example in greater detail.
  • the thermoelectric modules 2, 3 are formed as Peltier elements and associated with a Peltier heat pump of the tumble dryer.
  • thermoelectric modules 2, 3 of the heater 1 are connected in series with each other.
  • a respective circuit arrangement is connected in parallel.
  • thermoelectric module 4 is connected in parallel and the thermoelectric module 5, a further circuit arrangement 7 is connected in parallel.
  • the two circuit arrangements 6 and 7 each have only one electronic component.
  • the circuit arrangement 6 comprises an NTC resistor 61 and the circuit arrangement 7 likewise has an NTC resistor 71. If, for example, the thermoelectric module 4 fails, the electrical current is connected via the circuit arrangement 6 and thus via the NTC resistor 61 to the downstream circuit thermoelectric module 5 passed.
  • FIG. 3 Another version is in Fig. 3 shown. Also there is an enlarged partial section of the illustration according to Fig. 1 shown, in which in the circuit arrangements 6 and 7 instead of the NTC resistors 61 and 71 in turn in each case only a single component is connected. Thus, in the embodiment according to Fig. 3 Both the circuit arrangement 6 and the circuit arrangement 7 a temperature switch 62 and a temperature switch 72. If in this embodiment, for example, the thermoelectric module 4 fails, then a temperature reduction occurs, which causes the temperature switch 62 closes and the current through the circuit 6 and thus also via the closed temperature switch 62 to the downstream thermoelectric module 5 flows.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Central Heating Systems (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Drying Of Solid Materials (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

The device has thermoelectric modules (4, 5) that are connected in series, and circuit arrangements (6, 7) connected parallel to the modules, where the modules are designed as peltier-units and attached to a peltier-heat pump of a laundry dryer. The circuit arrangements are designed in such a manner that the electric current flow through the circuit arrangements in case of failure of the modules. The circuit arrangements comprise negative temperature coefficient-resistors (61, 71) and a switch that is designed as temperature switch.

Description

Die Erfindung betrifft eine Heizvorrichtung mit zumindest zwei in Reihe geschalteten thermoelektrischen Modulen.The invention relates to a heating device with at least two series-connected thermoelectric modules.

In einem Hausgerät, beispielsweise einem Wäschetrockner, können als Heizvorrichtung thermoelektrische Module angeordnet sein, die elektrisch miteinander in Reihe verschaltet sind. Falls eines dieser Module ausfällt, fällt die gesamte Heizvorrichtung aus.In a domestic appliance, for example a tumble dryer, thermoelectric modules can be arranged as a heating device, which are electrically interconnected in series. If one of these modules fails, the entire heater fails.

Derartige thermoelektrische Module können beispielsweise als Peltier-Elemente ausgebildet sein, welche in einer Peltier-Wärmepumpe eines Wäschetrockners eingesetzt sind.Such thermoelectric modules may be formed, for example, as Peltier elements, which are used in a Peltier heat pump of a clothes dryer.

Ein Hausgerät mit einer elektronischen Steuereinrichtung, welche für den Fall eines Defektes einer Funktionskomponente auf einen so genannten Notbetrieb umschaltbar ist, ist aus DE 100 39 444 A1 bekannt.A household appliance with an electronic control device, which is switchable in the event of a defect of a functional component to a so-called emergency operation, is off DE 100 39 444 A1 known.

Es ist Aufgabe der vorliegenden Erfindung, eine Heizvorrichtung zu schaffen, deren Ausfall verhindert werden kann, wenn ein thermoelektrisches Modul ausfällt.It is an object of the present invention to provide a heater whose failure can be prevented when a thermoelectric module fails.

Diese Aufgabe wird durch eine Heizvorrichtung, welche die Merkmale nach Patentanspruch 1 aufweist, und ein Hausgerät, welches die Merkmale nach Patentanspruch 7 aufweist, gelöst.This object is achieved by a heating device, which has the features according to claim 1, and a domestic appliance, which has the features according to claim 7.

Eine erfindungsgemäße Heizvorrichtung umfasst zumindest zwei in Reihe geschaltete thermoelektrische Module. Zumindest einem thermoelektrischen Modul ist eine Schaltungsanordnung parallel geschaltet, welche derart ausgebildet ist, dass im Fehlerfall des thermoelektrischen Moduls elektrischer Strom über die Schaltungsanordnung fließt. Durch diese Ausgestaltung kann auch bei einem Ausfall des thermoelektrischen Moduls der weitere Betrieb der Heizvorrichtung gewährleistet werden. Auch bei einem Ausfall eines oder mehrerer thermoelektrischer Module der Heizvorrichtung kann dadurch die Energieversorgung der weiteren in Reihe dazu geschalteten thermoelektrischen Module gewährleistet werden und somit der Betrieb der Heizvorrichtung aufrecht erhalten werden.A heating device according to the invention comprises at least two series-connected thermoelectric modules. At least one thermoelectric module, a circuit arrangement is connected in parallel, which is designed such that in the event of a fault of the thermoelectric module, electrical current flows through the circuit arrangement. As a result of this refinement, the further operation of the heating device can be ensured even if the thermoelectric module fails. Even with a failure of one or more thermoelectric modules of the heater can thereby the Power supply of the other series-connected thermoelectric modules are guaranteed and thus the operation of the heater can be maintained.

Bevorzugt ist jedem thermoelektrischen Modul eine separate Schaltungsanordnung parallel geschaltet. Unabhängig davon, welches oder wie viele der thermoelektrischenPreferably, each thermoelectric module is connected in parallel with a separate circuit arrangement. Regardless of which or how many of the thermoelectric

Module gleichzeitig oder nacheinander ausfallen, kann auch dann stets die weitere Heizfunktion der Heizvorrichtung gewährleistet werden.Modules fail simultaneously or in succession, the further heating function of the heater can always be guaranteed.

Bevorzugt weist eine Schaltungsanordnung lediglich ein elektronisches Bauelement auf. Dadurch kann die Schaltungsanordnung sehr einfach und dennoch effektiv ausgebildet sein. Darüber hinaus kann dadurch eine bauteilminimierte und somit auch kostenminimale Ausgestaltung gewährleistet werden.A circuit arrangement preferably has only one electronic component. As a result, the circuit arrangement can be made very simple and yet effective. In addition, a component-minimized and therefore cost-minimal design can be ensured.

Bevorzugt umfasst die Schaltungsanordnung einen Widerstand, insbesondere einen NTC-Widerstand. Falls ein thermoelektrisches Modul ausfallen sollte, könnte der elektrische Strom dann über den NTC-Widerstand zum nächsten thermoelektrischen Element fließen. Dadurch würde sich zwar eine geringfügige Leistungsminderung des Geräts ergeben, die Grundfunktion würde aber trotz des Defekts eines oder mehrerer der Module weiterhin gewährleistet sein.The circuit arrangement preferably comprises a resistor, in particular an NTC resistor. If a thermoelectric module fails, the electrical current could then flow through the NTC resistor to the next thermoelectric element. Although this would result in a slight reduction in performance of the device, but the basic function would continue to be guaranteed despite the defect of one or more of the modules.

Es kann auch vorgesehen sein, dass eine Schaltungsanordnung einen Schalter aufweist. Beispielsweise kann der Schalter als Temperaturschalter oder als stromabhängiger Schalter ausgebildet sein. Bei einer Ausgestaltung als Temperaturschalter kann erreicht werden, dass bei einem möglichen Defekt eines zugeordneten thermoelektrischen Moduls durch die Temperaturreduzierung dieser Temperaturschalter schließt und damit das zugeordnete thermoelektrische Modul kurzschließt. Auch dadurch kann dann der Stromfluss zum nachgeordneten thermoelektrischen Modul gewährleistet werden und die Funktionsfähigkeit der Heizvorrichtung aufrechterhalten werden.It can also be provided that a circuit arrangement has a switch. For example, the switch can be designed as a temperature switch or as a current-dependent switch. In an embodiment as a temperature switch can be achieved that closes in case of a possible defect of an associated thermoelectric module by the temperature reduction of this temperature switch and thus short-circuits the associated thermoelectric module. This also allows the current flow to the downstream thermoelectric module can be ensured and the functionality of the heater can be maintained.

Bei einer Ausgestaltung des Schalters als stromabhängiger Schalter ist vorgesehen, dass dieser schließt, falls kein Strom durch das thermoelektrische Modul fließt.In one embodiment of the switch as a current-dependent switch is provided that this closes, if no current flows through the thermoelectric module.

Die Erfindung betrifft des Weiteren ein Hausgerät zur Pflege von Wäschestücken, insbesondere einen Wäschetrockner oder einen Waschtrockner, mit einer erfindungsgemäßen Heizvorrichtung oder einer vorteilhaften Ausgestaltung davon. Durch ein derartig ausgestaltetes Hausgerät kann erreicht werden, dass dieses auch dann noch weiter funktioniert, wenn eines oder mehrere thermoelektrische Module ausfallen und zumindest eines dieser Module noch funktionsfähig ist. Zwar verlängert sich gegebenenfalls die Trocknungszeit eines als Wäschetrockner ausgebildeten Hausgeräts, wenn eines oder mehrere dieser thermoelektrischen Module der Heizvorrichtung ausfallen, aber das Hausgerät kann zumindest bis zu einer Reparatur weiterhin benutzt werden.The invention further relates to a domestic appliance for the care of items of laundry, in particular a clothes dryer or a washer-dryer, with a heating device according to the invention or an advantageous embodiment thereof. By means of such a configured domestic appliance, it can be achieved that it continues to function even if one or more thermoelectric modules fail and at least one of these modules is still functional. Although the drying time of a domestic appliance designed as a tumble dryer may be extended, if one or more of these thermoelectric modules of the heater fail, but the home appliance can continue to be used at least until repaired.

Bevorzugt sind die thermoelektrischen Module als Peltier-Elemente ausgebildet und einer Peltier-Wärmepumpe des Hausgeräts zugeordnet.Preferably, the thermoelectric modules are designed as Peltier elements and assigned to a Peltier heat pump of the domestic appliance.

Ausführungsbeispiele der Erfindung werden nachfolgend anhand schematischer Zeichnungen näher erläutert. Es zeigen:

Fig. 1
eine Darstellung einer Heizvorrichtung gemäß einem Ausführungsbeispiel;
Fig. 2
einen vergrößerten Teilausschnitt der Heizvorrichtung in Fig. 1 gemäß einem ersten Ausführungsbeispiel; und
Fig. 3
einen vergrößerten Teilausschnitt der Heizvorrichtung in Fig. 1 gemäß einem zweiten Ausführungsbeispiel.
Embodiments of the invention are explained in more detail below with reference to schematic drawings. Show it:
Fig. 1
an illustration of a heating device according to an embodiment;
Fig. 2
an enlarged partial section of the heater in Fig. 1 according to a first embodiment; and
Fig. 3
an enlarged partial section of the heater in Fig. 1 according to a second embodiment.

In den Figuren werden gleiche oder funktionsgleiche Elemente mit den gleichen Bezugszeichen versehen.In the figures, identical or functionally identical elements are provided with the same reference numerals.

In Fig. 1 ist eine Heizvorrichtung 1 gezeigt, welche in einem Wäschetrockner angeordnet ist. Die Heizvorrichtung 1 umfasst eine Mehrzahl, im Ausführungsbeispiel 24, thermoelektrischer Module, welche in Reihe geschaltet sind und von denen die thermoelektrischen Module 2 und 3 beispielhaft näher bezeichnet sind. Die thermoelektrischen Module 2, 3 sind als Peltier-Elemente ausgebildet und einer Peltier-Wärmepumpe des Wäschetrockners zugeordnet.In Fig. 1 a heating device 1 is shown, which is arranged in a tumble dryer. The heating device 1 comprises a plurality, in the exemplary embodiment 24, of thermoelectric modules which are connected in series and of which the thermoelectric modules 2 and 3 are designated by way of example in greater detail. The thermoelectric modules 2, 3 are formed as Peltier elements and associated with a Peltier heat pump of the tumble dryer.

Alle thermoelektrischen Module 2, 3 der Heizvorrichtung 1 sind in Reihe zueinander geschaltet. Zu jedem der thermoelektrischen Module 2, 3 ist jeweils eine Schaltungsanordnung parallel geschaltet.All thermoelectric modules 2, 3 of the heater 1 are connected in series with each other. For each of the thermoelectric modules 2, 3, a respective circuit arrangement is connected in parallel.

In Fig. 2 ist ein Teilausschnitt der Darstellung gemäß Fig. 1 gezeigt, bei dem beispielhaft zwei weitere thermoelektrische Module 4 und 5 näher bezeichnet sind. Dem thermoelektrischen Modul 4 ist eine Schaltungsanordnung 6 parallel geschaltet und dem thermoelektrischen Modul 5 ist eine weitere Schaltungsanordnung 7 parallel geschaltet. Die beiden Schaltungsanordnungen 6 und 7 weisen jeweils lediglich ein elektronisches Bauelement auf. Im Ausführungsbeispiel umfasst die Schaltungsanordnung 6 einen NTC-Widerstand 61 und die Schaltungsanordnung 7 ebenfalls einen NTC-Widerstand 71. Fällt nun beispielsweise das thermoelektrische Modul 4 aus, so wird der elektrische Strom über die Schaltungsanordnung 6 und somit über den NTC-Widerstand 61 zum nachgeschalteten thermoelektrischen Modul 5 geleitet.In Fig. 2 is a partial section of the illustration according to Fig. 1 in which by way of example two further thermoelectric modules 4 and 5 are designated in more detail. the thermoelectric module 4, a circuit 6 is connected in parallel and the thermoelectric module 5, a further circuit arrangement 7 is connected in parallel. The two circuit arrangements 6 and 7 each have only one electronic component. In the exemplary embodiment, the circuit arrangement 6 comprises an NTC resistor 61 and the circuit arrangement 7 likewise has an NTC resistor 71. If, for example, the thermoelectric module 4 fails, the electrical current is connected via the circuit arrangement 6 and thus via the NTC resistor 61 to the downstream circuit thermoelectric module 5 passed.

Eine weitere Ausführung ist in Fig. 3 dargestellt. Auch dort ist ein vergrößerter Teilausschnitt der Darstellung gemäß Fig. 1 gezeigt, bei dem in den Schaltungsanordnungen 6 und 7 anstatt der NTC-Widerstände 61 und 71 wiederum jeweils lediglich ein einziges Bauelement geschaltet ist. So umfasst in der Ausführung gemäß Fig. 3 sowohl die Schaltungsanordnung 6 als auch die Schaltungsanordnung 7 einen Temperaturschalter 62 bzw. einen Temperaturschalter 72. Fällt bei dieser Ausführung beispielsweise das thermoelektrische Modul 4 aus, so tritt eine Temperaturreduzierung ein, welche dazu führt, dass der Temperaturschalter 62 schließt und der Strom über die Schaltungsanordnung 6 und somit auch über den geschlossenen Temperaturschalter 62 zum nachgeschalteten thermoelektrischen Modul 5 fließt.Another version is in Fig. 3 shown. Also there is an enlarged partial section of the illustration according to Fig. 1 shown, in which in the circuit arrangements 6 and 7 instead of the NTC resistors 61 and 71 in turn in each case only a single component is connected. Thus, in the embodiment according to Fig. 3 Both the circuit arrangement 6 and the circuit arrangement 7 a temperature switch 62 and a temperature switch 72. If in this embodiment, for example, the thermoelectric module 4 fails, then a temperature reduction occurs, which causes the temperature switch 62 closes and the current through the circuit 6 and thus also via the closed temperature switch 62 to the downstream thermoelectric module 5 flows.

Claims (8)

  1. Heating device with at least two thermoelectric modules (2, 3, 4, 5) connected in series, characterised in that a circuit arrangement (6, 7) is connected in parallel with at least one thermoelectric module (2 to 5) and that to ensure energy supply to the further thermoelectric modules (2 to 5), which are connected in series with the one thermoelectric module (2 to 5), in a case of failure of the one thermoelectric module (2 to 5) electric current flows by way of the circuit arrangement (6, 7).
  2. Heating device according to claim 1, characterised in that a separate circuit arrangement (6, 7) is connected in parallel with each thermoelectric module (2 to 5).
  3. Heating device according to claim 1 or 2, characterised in that a circuit arrangement (6, 7) has merely one component (61, 62, 71, 72).
  4. Heating device according to any one of the preceding claims, characterised in that a circuit arrangement comprises a resistance, particularly an NTC resistance (61, 71).
  5. Heating device according to any one of the preceding claims, characterised in that a circuit arrangement comprises a switch (62, 72).
  6. Heating device according to claim 5, characterised in that the switch (62, 72) is constructed as a temperature switch or as a current-dependent switch.
  7. Domestic appliance for care of items of laundry, particularly laundry dryer, with a heating device (1) according to any one of the preceding claims.
  8. Domestic appliance according to claim 7, characterised in that the thermoelectric modules (2 to 5) are constructed as Peltier elements and are associated with a Peltier heat pump of the domestic appliance.
EP07821679A 2006-10-24 2007-10-23 Heating apparatus having at least two thermoelectric modules which are connected in series Not-in-force EP2087162B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006050055A DE102006050055A1 (en) 2006-10-24 2006-10-24 Heating device for household appliance i.e. laundry dryer, has thermoelectric modules connected in series, and circuit arrangements designed, such that that electric current flow through circuit arrangements in case of failure of modules
PCT/EP2007/061315 WO2008049820A1 (en) 2006-10-24 2007-10-23 Heating apparatus having at least two thermoelectric modules which are connected in series

Publications (2)

Publication Number Publication Date
EP2087162A1 EP2087162A1 (en) 2009-08-12
EP2087162B1 true EP2087162B1 (en) 2010-03-31

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EP07821679A Not-in-force EP2087162B1 (en) 2006-10-24 2007-10-23 Heating apparatus having at least two thermoelectric modules which are connected in series

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US (1) US8438860B2 (en)
EP (1) EP2087162B1 (en)
AT (1) ATE462821T1 (en)
DE (2) DE102006050055A1 (en)
WO (1) WO2008049820A1 (en)

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US6877248B1 (en) * 2004-03-05 2005-04-12 Gregory N. Cross Clothes dryer with ultraviolet light
DE102004044176A1 (en) 2004-09-13 2006-03-30 BSH Bosch und Siemens Hausgeräte GmbH Drying process for a household appliance and household appliance for carrying out the drying process

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EP2087162A1 (en) 2009-08-12
DE502007003352D1 (en) 2010-05-12
US20110016889A1 (en) 2011-01-27
DE102006050055A1 (en) 2008-04-30
ATE462821T1 (en) 2010-04-15
WO2008049820A1 (en) 2008-05-02
US8438860B2 (en) 2013-05-14

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